mercurial-scm/hg: contrib/python-zstandard/zstd/compress/zstd

annotate contrib/python-zstandard/zstd/compress/zstd_compress.c @ 42937:69de49c4e39c

zstandard: vendor python-zstandard 0.12 The upstream source distribution from PyPI was extracted. Unwanted files were removed. The clang-format ignore list was updated to reflect the new source of files. test-repo-compengines.t was updated to reflect a change in behavior of the zstd library. The project contains a vendored copy of zstandard 1.4.3. The old version was 1.3.8. This should result in some minor performance wins. # no-check-commit because 3rd party code has different style guidelines Differential Revision: https://phab.mercurial-scm.org/D6858

author	Gregory Szorc <gregory.szorc@gmail.com>
date	Sun, 15 Sep 2019 20:04:00 -0700
parents	675775c33ab6
children	de7838053207

rev	line source
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1 /*
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2 * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3 * All rights reserved.
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	4 *
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	5 * This source code is licensed under both the BSD-style license (found in the
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	7 * in the COPYING file in the root directory of this source tree).
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	8 * You may select, at your option, one of the above-listed licenses.
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	9 */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	10
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	11 /-************************************
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	12 * Dependencies
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	13 ***************************************/
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	14 #include <limits.h> /* INT_MAX */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	15 #include <string.h> /* memset */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	16 #include "cpu.h"
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	17 #include "mem.h"
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	18 #include "hist.h" /* HIST_countFast_wksp */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	19 #define FSE_STATIC_LINKING_ONLY /* FSE_encodeSymbol */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	20 #include "fse.h"
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	21 #define HUF_STATIC_LINKING_ONLY
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	22 #include "huf.h"
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	23 #include "zstd_compress_internal.h"
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	24 #include "zstd_compress_sequences.h"
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	25 #include "zstd_compress_literals.h"
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	26 #include "zstd_fast.h"
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	27 #include "zstd_double_fast.h"
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	28 #include "zstd_lazy.h"
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	29 #include "zstd_opt.h"
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	30 #include "zstd_ldm.h"
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	31
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	32
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	33 /-************************************
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	34 * Helper functions
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	35 ***************************************/
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	36 size_t ZSTD_compressBound(size_t srcSize) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	37 return ZSTD_COMPRESSBOUND(srcSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	38 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	39
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	40
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	41 /-************************************
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	42 * Context memory management
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	43 ***************************************/
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	44 struct ZSTD_CDict_s {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	45 void* dictBuffer;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	46 const void* dictContent;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	47 size_t dictContentSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	48 void* workspace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	49 size_t workspaceSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	50 ZSTD_matchState_t matchState;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	51 ZSTD_compressedBlockState_t cBlockState;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	52 ZSTD_customMem customMem;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	53 U32 dictID;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	54 }; /* typedef'd to ZSTD_CDict within "zstd.h" */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	55
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	56 ZSTD_CCtx* ZSTD_createCCtx(void)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	57 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	58 return ZSTD_createCCtx_advanced(ZSTD_defaultCMem);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	59 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	60
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	61 static void ZSTD_initCCtx(ZSTD_CCtx* cctx, ZSTD_customMem memManager)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	62 {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	63 assert(cctx != NULL);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	64 memset(cctx, 0, sizeof(*cctx));
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	65 cctx->customMem = memManager;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	66 cctx->bmi2 = ZSTD_cpuid_bmi2(ZSTD_cpuid());
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	67 { size_t const err = ZSTD_CCtx_reset(cctx, ZSTD_reset_parameters);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	68 assert(!ZSTD_isError(err));
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	69 (void)err;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	70 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	71 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	72
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	73 ZSTD_CCtx* ZSTD_createCCtx_advanced(ZSTD_customMem customMem)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	74 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	75 ZSTD_STATIC_ASSERT(zcss_init==0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	76 ZSTD_STATIC_ASSERT(ZSTD_CONTENTSIZE_UNKNOWN==(0ULL - 1));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	77 if (!customMem.customAlloc ^ !customMem.customFree) return NULL;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	78 { ZSTD_CCtx* const cctx = (ZSTD_CCtx*)ZSTD_malloc(sizeof(ZSTD_CCtx), customMem);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	79 if (!cctx) return NULL;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	80 ZSTD_initCCtx(cctx, customMem);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	81 return cctx;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	82 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	83 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	84
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	85 ZSTD_CCtx* ZSTD_initStaticCCtx(void *workspace, size_t workspaceSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	86 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	87 ZSTD_CCtx* const cctx = (ZSTD_CCtx*) workspace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	88 if (workspaceSize <= sizeof(ZSTD_CCtx)) return NULL; /* minimum size */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	89 if ((size_t)workspace & 7) return NULL; /* must be 8-aligned */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	90 memset(workspace, 0, workspaceSize); /* may be a bit generous, could memset be smaller ? */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	91 cctx->staticSize = workspaceSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	92 cctx->workSpace = (void*)(cctx+1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	93 cctx->workSpaceSize = workspaceSize - sizeof(ZSTD_CCtx);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	94
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	95 /* statically sized space. entropyWorkspace never moves (but prev/next block swap places) */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	96 if (cctx->workSpaceSize < HUF_WORKSPACE_SIZE + 2 * sizeof(ZSTD_compressedBlockState_t)) return NULL;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	97 assert(((size_t)cctx->workSpace & (sizeof(void)-1)) == 0); / ensure correct alignment */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	98 cctx->blockState.prevCBlock = (ZSTD_compressedBlockState_t*)cctx->workSpace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	99 cctx->blockState.nextCBlock = cctx->blockState.prevCBlock + 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	100 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	101 void* const ptr = cctx->blockState.nextCBlock + 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	102 cctx->entropyWorkspace = (U32*)ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	103 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	104 cctx->bmi2 = ZSTD_cpuid_bmi2(ZSTD_cpuid());
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	105 return cctx;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	106 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	107
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	108 /**
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	109 * Clears and frees all of the dictionaries in the CCtx.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	110 */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	111 static void ZSTD_clearAllDicts(ZSTD_CCtx* cctx)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	112 {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	113 ZSTD_free(cctx->localDict.dictBuffer, cctx->customMem);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	114 ZSTD_freeCDict(cctx->localDict.cdict);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	115 memset(&cctx->localDict, 0, sizeof(cctx->localDict));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	116 memset(&cctx->prefixDict, 0, sizeof(cctx->prefixDict));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	117 cctx->cdict = NULL;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	118 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	119
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	120 static size_t ZSTD_sizeof_localDict(ZSTD_localDict dict)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	121 {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	122 size_t const bufferSize = dict.dictBuffer != NULL ? dict.dictSize : 0;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	123 size_t const cdictSize = ZSTD_sizeof_CDict(dict.cdict);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	124 return bufferSize + cdictSize;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	125 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	126
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	127 static void ZSTD_freeCCtxContent(ZSTD_CCtx* cctx)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	128 {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	129 assert(cctx != NULL);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	130 assert(cctx->staticSize == 0);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	131 ZSTD_free(cctx->workSpace, cctx->customMem); cctx->workSpace = NULL;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	132 ZSTD_clearAllDicts(cctx);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	133 #ifdef ZSTD_MULTITHREAD
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	134 ZSTDMT_freeCCtx(cctx->mtctx); cctx->mtctx = NULL;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	135 #endif
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	136 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	137
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	138 size_t ZSTD_freeCCtx(ZSTD_CCtx* cctx)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	139 {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	140 if (cctx==NULL) return 0; /* support free on NULL */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	141 RETURN_ERROR_IF(cctx->staticSize, memory_allocation,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	142 "not compatible with static CCtx");
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	143 ZSTD_freeCCtxContent(cctx);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	144 ZSTD_free(cctx, cctx->customMem);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	145 return 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	146 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	147
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	148
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	149 static size_t ZSTD_sizeof_mtctx(const ZSTD_CCtx* cctx)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	150 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	151 #ifdef ZSTD_MULTITHREAD
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	152 return ZSTDMT_sizeof_CCtx(cctx->mtctx);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	153 #else
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	154 (void)cctx;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	155 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	156 #endif
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	157 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	158
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	159
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	160 size_t ZSTD_sizeof_CCtx(const ZSTD_CCtx* cctx)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	161 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	162 if (cctx==NULL) return 0; /* support sizeof on NULL */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	163 return sizeof(*cctx) + cctx->workSpaceSize
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	164 + ZSTD_sizeof_localDict(cctx->localDict)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	165 + ZSTD_sizeof_mtctx(cctx);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	166 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	167
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	168 size_t ZSTD_sizeof_CStream(const ZSTD_CStream* zcs)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	169 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	170 return ZSTD_sizeof_CCtx(zcs); /* same object */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	171 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	172
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	173 /* private API call, for dictBuilder only */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	174 const seqStore_t* ZSTD_getSeqStore(const ZSTD_CCtx* ctx) { return &(ctx->seqStore); }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	175
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	176 static ZSTD_CCtx_params ZSTD_makeCCtxParamsFromCParams(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	177 ZSTD_compressionParameters cParams)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	178 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	179 ZSTD_CCtx_params cctxParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	180 memset(&cctxParams, 0, sizeof(cctxParams));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	181 cctxParams.cParams = cParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	182 cctxParams.compressionLevel = ZSTD_CLEVEL_DEFAULT; /* should not matter, as all cParams are presumed properly defined */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	183 assert(!ZSTD_checkCParams(cParams));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	184 cctxParams.fParams.contentSizeFlag = 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	185 return cctxParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	186 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	187
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	188 static ZSTD_CCtx_params* ZSTD_createCCtxParams_advanced(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	189 ZSTD_customMem customMem)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	190 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	191 ZSTD_CCtx_params* params;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	192 if (!customMem.customAlloc ^ !customMem.customFree) return NULL;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	193 params = (ZSTD_CCtx_params*)ZSTD_calloc(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	194 sizeof(ZSTD_CCtx_params), customMem);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	195 if (!params) { return NULL; }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	196 params->customMem = customMem;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	197 params->compressionLevel = ZSTD_CLEVEL_DEFAULT;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	198 params->fParams.contentSizeFlag = 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	199 return params;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	200 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	201
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	202 ZSTD_CCtx_params* ZSTD_createCCtxParams(void)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	203 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	204 return ZSTD_createCCtxParams_advanced(ZSTD_defaultCMem);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	205 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	206
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	207 size_t ZSTD_freeCCtxParams(ZSTD_CCtx_params* params)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	208 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	209 if (params == NULL) { return 0; }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	210 ZSTD_free(params, params->customMem);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	211 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	212 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	213
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	214 size_t ZSTD_CCtxParams_reset(ZSTD_CCtx_params* params)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	215 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	216 return ZSTD_CCtxParams_init(params, ZSTD_CLEVEL_DEFAULT);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	217 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	218
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	219 size_t ZSTD_CCtxParams_init(ZSTD_CCtx_params* cctxParams, int compressionLevel) {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	220 RETURN_ERROR_IF(!cctxParams, GENERIC);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	221 memset(cctxParams, 0, sizeof(*cctxParams));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	222 cctxParams->compressionLevel = compressionLevel;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	223 cctxParams->fParams.contentSizeFlag = 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	224 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	225 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	226
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	227 size_t ZSTD_CCtxParams_init_advanced(ZSTD_CCtx_params* cctxParams, ZSTD_parameters params)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	228 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	229 RETURN_ERROR_IF(!cctxParams, GENERIC);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	230 FORWARD_IF_ERROR( ZSTD_checkCParams(params.cParams) );
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	231 memset(cctxParams, 0, sizeof(*cctxParams));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	232 cctxParams->cParams = params.cParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	233 cctxParams->fParams = params.fParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	234 cctxParams->compressionLevel = ZSTD_CLEVEL_DEFAULT; /* should not matter, as all cParams are presumed properly defined */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	235 assert(!ZSTD_checkCParams(params.cParams));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	236 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	237 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	238
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	239 /* ZSTD_assignParamsToCCtxParams() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	240 * params is presumed valid at this stage */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	241 static ZSTD_CCtx_params ZSTD_assignParamsToCCtxParams(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	242 ZSTD_CCtx_params cctxParams, ZSTD_parameters params)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	243 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	244 ZSTD_CCtx_params ret = cctxParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	245 ret.cParams = params.cParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	246 ret.fParams = params.fParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	247 ret.compressionLevel = ZSTD_CLEVEL_DEFAULT; /* should not matter, as all cParams are presumed properly defined */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	248 assert(!ZSTD_checkCParams(params.cParams));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	249 return ret;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	250 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	251
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	252 ZSTD_bounds ZSTD_cParam_getBounds(ZSTD_cParameter param)
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	253 {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	254 ZSTD_bounds bounds = { 0, 0, 0 };
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	255
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	256 switch(param)
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	257 {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	258 case ZSTD_c_compressionLevel:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	259 bounds.lowerBound = ZSTD_minCLevel();
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	260 bounds.upperBound = ZSTD_maxCLevel();
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	261 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	262
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	263 case ZSTD_c_windowLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	264 bounds.lowerBound = ZSTD_WINDOWLOG_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	265 bounds.upperBound = ZSTD_WINDOWLOG_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	266 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	267
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	268 case ZSTD_c_hashLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	269 bounds.lowerBound = ZSTD_HASHLOG_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	270 bounds.upperBound = ZSTD_HASHLOG_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	271 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	272
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	273 case ZSTD_c_chainLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	274 bounds.lowerBound = ZSTD_CHAINLOG_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	275 bounds.upperBound = ZSTD_CHAINLOG_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	276 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	277
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	278 case ZSTD_c_searchLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	279 bounds.lowerBound = ZSTD_SEARCHLOG_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	280 bounds.upperBound = ZSTD_SEARCHLOG_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	281 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	282
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	283 case ZSTD_c_minMatch:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	284 bounds.lowerBound = ZSTD_MINMATCH_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	285 bounds.upperBound = ZSTD_MINMATCH_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	286 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	287
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	288 case ZSTD_c_targetLength:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	289 bounds.lowerBound = ZSTD_TARGETLENGTH_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	290 bounds.upperBound = ZSTD_TARGETLENGTH_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	291 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	292
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	293 case ZSTD_c_strategy:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	294 bounds.lowerBound = ZSTD_STRATEGY_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	295 bounds.upperBound = ZSTD_STRATEGY_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	296 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	297
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	298 case ZSTD_c_contentSizeFlag:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	299 bounds.lowerBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	300 bounds.upperBound = 1;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	301 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	302
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	303 case ZSTD_c_checksumFlag:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	304 bounds.lowerBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	305 bounds.upperBound = 1;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	306 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	307
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	308 case ZSTD_c_dictIDFlag:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	309 bounds.lowerBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	310 bounds.upperBound = 1;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	311 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	312
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	313 case ZSTD_c_nbWorkers:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	314 bounds.lowerBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	315 #ifdef ZSTD_MULTITHREAD
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	316 bounds.upperBound = ZSTDMT_NBWORKERS_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	317 #else
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	318 bounds.upperBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	319 #endif
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	320 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	321
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	322 case ZSTD_c_jobSize:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	323 bounds.lowerBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	324 #ifdef ZSTD_MULTITHREAD
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	325 bounds.upperBound = ZSTDMT_JOBSIZE_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	326 #else
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	327 bounds.upperBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	328 #endif
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	329 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	330
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	331 case ZSTD_c_overlapLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	332 bounds.lowerBound = ZSTD_OVERLAPLOG_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	333 bounds.upperBound = ZSTD_OVERLAPLOG_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	334 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	335
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	336 case ZSTD_c_enableLongDistanceMatching:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	337 bounds.lowerBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	338 bounds.upperBound = 1;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	339 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	340
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	341 case ZSTD_c_ldmHashLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	342 bounds.lowerBound = ZSTD_LDM_HASHLOG_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	343 bounds.upperBound = ZSTD_LDM_HASHLOG_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	344 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	345
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	346 case ZSTD_c_ldmMinMatch:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	347 bounds.lowerBound = ZSTD_LDM_MINMATCH_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	348 bounds.upperBound = ZSTD_LDM_MINMATCH_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	349 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	350
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	351 case ZSTD_c_ldmBucketSizeLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	352 bounds.lowerBound = ZSTD_LDM_BUCKETSIZELOG_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	353 bounds.upperBound = ZSTD_LDM_BUCKETSIZELOG_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	354 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	355
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	356 case ZSTD_c_ldmHashRateLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	357 bounds.lowerBound = ZSTD_LDM_HASHRATELOG_MIN;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	358 bounds.upperBound = ZSTD_LDM_HASHRATELOG_MAX;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	359 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	360
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	361 /* experimental parameters */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	362 case ZSTD_c_rsyncable:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	363 bounds.lowerBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	364 bounds.upperBound = 1;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	365 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	366
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	367 case ZSTD_c_forceMaxWindow :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	368 bounds.lowerBound = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	369 bounds.upperBound = 1;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	370 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	371
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	372 case ZSTD_c_format:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	373 ZSTD_STATIC_ASSERT(ZSTD_f_zstd1 < ZSTD_f_zstd1_magicless);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	374 bounds.lowerBound = ZSTD_f_zstd1;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	375 bounds.upperBound = ZSTD_f_zstd1_magicless; /* note : how to ensure at compile time that this is the highest value enum ? */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	376 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	377
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	378 case ZSTD_c_forceAttachDict:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	379 ZSTD_STATIC_ASSERT(ZSTD_dictDefaultAttach < ZSTD_dictForceCopy);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	380 bounds.lowerBound = ZSTD_dictDefaultAttach;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	381 bounds.upperBound = ZSTD_dictForceCopy; /* note : how to ensure at compile time that this is the highest value enum ? */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	382 return bounds;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	383
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	384 case ZSTD_c_literalCompressionMode:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	385 ZSTD_STATIC_ASSERT(ZSTD_lcm_auto < ZSTD_lcm_huffman && ZSTD_lcm_huffman < ZSTD_lcm_uncompressed);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	386 bounds.lowerBound = ZSTD_lcm_auto;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	387 bounds.upperBound = ZSTD_lcm_uncompressed;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	388 return bounds;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	389
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	390 case ZSTD_c_targetCBlockSize:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	391 bounds.lowerBound = ZSTD_TARGETCBLOCKSIZE_MIN;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	392 bounds.upperBound = ZSTD_TARGETCBLOCKSIZE_MAX;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	393 return bounds;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	394
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	395 default:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	396 { ZSTD_bounds const boundError = { ERROR(parameter_unsupported), 0, 0 };
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	397 return boundError;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	398 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	399 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	400 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	401
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	402 /* ZSTD_cParam_clampBounds:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	403 * Clamps the value into the bounded range.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	404 */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	405 static size_t ZSTD_cParam_clampBounds(ZSTD_cParameter cParam, int* value)
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	406 {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	407 ZSTD_bounds const bounds = ZSTD_cParam_getBounds(cParam);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	408 if (ZSTD_isError(bounds.error)) return bounds.error;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	409 if (value < bounds.lowerBound) value = bounds.lowerBound;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	410 if (value > bounds.upperBound) value = bounds.upperBound;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	411 return 0;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	412 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	413
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	414 #define BOUNDCHECK(cParam, val) { \
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	415 RETURN_ERROR_IF(!ZSTD_cParam_withinBounds(cParam,val), \
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	416 parameter_outOfBound); \
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	417 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	418
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	419
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	420 static int ZSTD_isUpdateAuthorized(ZSTD_cParameter param)
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	421 {
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	422 switch(param)
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	423 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	424 case ZSTD_c_compressionLevel:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	425 case ZSTD_c_hashLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	426 case ZSTD_c_chainLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	427 case ZSTD_c_searchLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	428 case ZSTD_c_minMatch:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	429 case ZSTD_c_targetLength:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	430 case ZSTD_c_strategy:
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	431 return 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	432
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	433 case ZSTD_c_format:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	434 case ZSTD_c_windowLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	435 case ZSTD_c_contentSizeFlag:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	436 case ZSTD_c_checksumFlag:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	437 case ZSTD_c_dictIDFlag:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	438 case ZSTD_c_forceMaxWindow :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	439 case ZSTD_c_nbWorkers:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	440 case ZSTD_c_jobSize:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	441 case ZSTD_c_overlapLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	442 case ZSTD_c_rsyncable:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	443 case ZSTD_c_enableLongDistanceMatching:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	444 case ZSTD_c_ldmHashLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	445 case ZSTD_c_ldmMinMatch:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	446 case ZSTD_c_ldmBucketSizeLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	447 case ZSTD_c_ldmHashRateLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	448 case ZSTD_c_forceAttachDict:
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	449 case ZSTD_c_literalCompressionMode:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	450 case ZSTD_c_targetCBlockSize:
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	451 default:
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	452 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	453 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	454 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	455
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	456 size_t ZSTD_CCtx_setParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param, int value)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	457 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	458 DEBUGLOG(4, "ZSTD_CCtx_setParameter (%i, %i)", (int)param, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	459 if (cctx->streamStage != zcss_init) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	460 if (ZSTD_isUpdateAuthorized(param)) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	461 cctx->cParamsChanged = 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	462 } else {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	463 RETURN_ERROR(stage_wrong);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	464 } }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	465
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	466 switch(param)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	467 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	468 case ZSTD_c_nbWorkers:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	469 RETURN_ERROR_IF((value!=0) && cctx->staticSize, parameter_unsupported,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	470 "MT not compatible with static alloc");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	471 break;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	472
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	473 case ZSTD_c_compressionLevel:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	474 case ZSTD_c_windowLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	475 case ZSTD_c_hashLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	476 case ZSTD_c_chainLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	477 case ZSTD_c_searchLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	478 case ZSTD_c_minMatch:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	479 case ZSTD_c_targetLength:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	480 case ZSTD_c_strategy:
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	481 case ZSTD_c_ldmHashRateLog:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	482 case ZSTD_c_format:
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	483 case ZSTD_c_contentSizeFlag:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	484 case ZSTD_c_checksumFlag:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	485 case ZSTD_c_dictIDFlag:
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	486 case ZSTD_c_forceMaxWindow:
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	487 case ZSTD_c_forceAttachDict:
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	488 case ZSTD_c_literalCompressionMode:
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	489 case ZSTD_c_jobSize:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	490 case ZSTD_c_overlapLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	491 case ZSTD_c_rsyncable:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	492 case ZSTD_c_enableLongDistanceMatching:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	493 case ZSTD_c_ldmHashLog:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	494 case ZSTD_c_ldmMinMatch:
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	495 case ZSTD_c_ldmBucketSizeLog:
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	496 case ZSTD_c_targetCBlockSize:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	497 break;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	498
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	499 default: RETURN_ERROR(parameter_unsupported);
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	500 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	501 return ZSTD_CCtxParams_setParameter(&cctx->requestedParams, param, value);
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	502 }
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	503
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	504 size_t ZSTD_CCtxParams_setParameter(ZSTD_CCtx_params* CCtxParams,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	505 ZSTD_cParameter param, int value)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	506 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	507 DEBUGLOG(4, "ZSTD_CCtxParams_setParameter (%i, %i)", (int)param, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	508 switch(param)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	509 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	510 case ZSTD_c_format :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	511 BOUNDCHECK(ZSTD_c_format, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	512 CCtxParams->format = (ZSTD_format_e)value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	513 return (size_t)CCtxParams->format;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	514
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	515 case ZSTD_c_compressionLevel : {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	516 FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(param, &value));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	517 if (value) { /* 0 : does not change current level */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	518 CCtxParams->compressionLevel = value;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	519 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	520 if (CCtxParams->compressionLevel >= 0) return CCtxParams->compressionLevel;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	521 return 0; /* return type (size_t) cannot represent negative values */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	522 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	523
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	524 case ZSTD_c_windowLog :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	525 if (value!=0) /* 0 => use default */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	526 BOUNDCHECK(ZSTD_c_windowLog, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	527 CCtxParams->cParams.windowLog = value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	528 return CCtxParams->cParams.windowLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	529
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	530 case ZSTD_c_hashLog :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	531 if (value!=0) /* 0 => use default */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	532 BOUNDCHECK(ZSTD_c_hashLog, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	533 CCtxParams->cParams.hashLog = value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	534 return CCtxParams->cParams.hashLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	535
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	536 case ZSTD_c_chainLog :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	537 if (value!=0) /* 0 => use default */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	538 BOUNDCHECK(ZSTD_c_chainLog, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	539 CCtxParams->cParams.chainLog = value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	540 return CCtxParams->cParams.chainLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	541
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	542 case ZSTD_c_searchLog :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	543 if (value!=0) /* 0 => use default */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	544 BOUNDCHECK(ZSTD_c_searchLog, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	545 CCtxParams->cParams.searchLog = value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	546 return value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	547
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	548 case ZSTD_c_minMatch :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	549 if (value!=0) /* 0 => use default */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	550 BOUNDCHECK(ZSTD_c_minMatch, value);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	551 CCtxParams->cParams.minMatch = value;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	552 return CCtxParams->cParams.minMatch;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	553
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	554 case ZSTD_c_targetLength :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	555 BOUNDCHECK(ZSTD_c_targetLength, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	556 CCtxParams->cParams.targetLength = value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	557 return CCtxParams->cParams.targetLength;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	558
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	559 case ZSTD_c_strategy :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	560 if (value!=0) /* 0 => use default */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	561 BOUNDCHECK(ZSTD_c_strategy, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	562 CCtxParams->cParams.strategy = (ZSTD_strategy)value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	563 return (size_t)CCtxParams->cParams.strategy;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	564
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	565 case ZSTD_c_contentSizeFlag :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	566 /* Content size written in frame header _when known_ (default:1) */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	567 DEBUGLOG(4, "set content size flag = %u", (value!=0));
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	568 CCtxParams->fParams.contentSizeFlag = value != 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	569 return CCtxParams->fParams.contentSizeFlag;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	570
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	571 case ZSTD_c_checksumFlag :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	572 /* A 32-bits content checksum will be calculated and written at end of frame (default:0) */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	573 CCtxParams->fParams.checksumFlag = value != 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	574 return CCtxParams->fParams.checksumFlag;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	575
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	576 case ZSTD_c_dictIDFlag : /* When applicable, dictionary's dictID is provided in frame header (default:1) */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	577 DEBUGLOG(4, "set dictIDFlag = %u", (value!=0));
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	578 CCtxParams->fParams.noDictIDFlag = !value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	579 return !CCtxParams->fParams.noDictIDFlag;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	580
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	581 case ZSTD_c_forceMaxWindow :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	582 CCtxParams->forceWindow = (value != 0);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	583 return CCtxParams->forceWindow;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	584
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	585 case ZSTD_c_forceAttachDict : {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	586 const ZSTD_dictAttachPref_e pref = (ZSTD_dictAttachPref_e)value;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	587 BOUNDCHECK(ZSTD_c_forceAttachDict, pref);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	588 CCtxParams->attachDictPref = pref;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	589 return CCtxParams->attachDictPref;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	590 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	591
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	592 case ZSTD_c_literalCompressionMode : {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	593 const ZSTD_literalCompressionMode_e lcm = (ZSTD_literalCompressionMode_e)value;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	594 BOUNDCHECK(ZSTD_c_literalCompressionMode, lcm);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	595 CCtxParams->literalCompressionMode = lcm;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	596 return CCtxParams->literalCompressionMode;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	597 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	598
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	599 case ZSTD_c_nbWorkers :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	600 #ifndef ZSTD_MULTITHREAD
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	601 RETURN_ERROR_IF(value!=0, parameter_unsupported, "not compiled with multithreading");
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	602 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	603 #else
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	604 FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(param, &value));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	605 CCtxParams->nbWorkers = value;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	606 return CCtxParams->nbWorkers;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	607 #endif
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	608
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	609 case ZSTD_c_jobSize :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	610 #ifndef ZSTD_MULTITHREAD
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	611 RETURN_ERROR_IF(value!=0, parameter_unsupported, "not compiled with multithreading");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	612 return 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	613 #else
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	614 /* Adjust to the minimum non-default value. */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	615 if (value != 0 && value < ZSTDMT_JOBSIZE_MIN)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	616 value = ZSTDMT_JOBSIZE_MIN;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	617 FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(param, &value));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	618 assert(value >= 0);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	619 CCtxParams->jobSize = value;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	620 return CCtxParams->jobSize;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	621 #endif
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	622
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	623 case ZSTD_c_overlapLog :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	624 #ifndef ZSTD_MULTITHREAD
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	625 RETURN_ERROR_IF(value!=0, parameter_unsupported, "not compiled with multithreading");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	626 return 0;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	627 #else
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	628 FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(ZSTD_c_overlapLog, &value));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	629 CCtxParams->overlapLog = value;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	630 return CCtxParams->overlapLog;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	631 #endif
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	632
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	633 case ZSTD_c_rsyncable :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	634 #ifndef ZSTD_MULTITHREAD
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	635 RETURN_ERROR_IF(value!=0, parameter_unsupported, "not compiled with multithreading");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	636 return 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	637 #else
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	638 FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(ZSTD_c_overlapLog, &value));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	639 CCtxParams->rsyncable = value;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	640 return CCtxParams->rsyncable;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	641 #endif
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	642
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	643 case ZSTD_c_enableLongDistanceMatching :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	644 CCtxParams->ldmParams.enableLdm = (value!=0);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	645 return CCtxParams->ldmParams.enableLdm;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	646
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	647 case ZSTD_c_ldmHashLog :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	648 if (value!=0) /* 0 ==> auto */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	649 BOUNDCHECK(ZSTD_c_ldmHashLog, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	650 CCtxParams->ldmParams.hashLog = value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	651 return CCtxParams->ldmParams.hashLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	652
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	653 case ZSTD_c_ldmMinMatch :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	654 if (value!=0) /* 0 ==> default */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	655 BOUNDCHECK(ZSTD_c_ldmMinMatch, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	656 CCtxParams->ldmParams.minMatchLength = value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	657 return CCtxParams->ldmParams.minMatchLength;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	658
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	659 case ZSTD_c_ldmBucketSizeLog :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	660 if (value!=0) /* 0 ==> default */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	661 BOUNDCHECK(ZSTD_c_ldmBucketSizeLog, value);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	662 CCtxParams->ldmParams.bucketSizeLog = value;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	663 return CCtxParams->ldmParams.bucketSizeLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	664
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	665 case ZSTD_c_ldmHashRateLog :
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	666 RETURN_ERROR_IF(value > ZSTD_WINDOWLOG_MAX - ZSTD_HASHLOG_MIN,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	667 parameter_outOfBound);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	668 CCtxParams->ldmParams.hashRateLog = value;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	669 return CCtxParams->ldmParams.hashRateLog;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	670
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	671 case ZSTD_c_targetCBlockSize :
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	672 if (value!=0) /* 0 ==> default */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	673 BOUNDCHECK(ZSTD_c_targetCBlockSize, value);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	674 CCtxParams->targetCBlockSize = value;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	675 return CCtxParams->targetCBlockSize;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	676
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	677 default: RETURN_ERROR(parameter_unsupported, "unknown parameter");
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	678 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	679 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	680
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	681 size_t ZSTD_CCtx_getParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param, int* value)
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	682 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	683 return ZSTD_CCtxParams_getParameter(&cctx->requestedParams, param, value);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	684 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	685
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	686 size_t ZSTD_CCtxParams_getParameter(
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	687 ZSTD_CCtx_params* CCtxParams, ZSTD_cParameter param, int* value)
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	688 {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	689 switch(param)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	690 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	691 case ZSTD_c_format :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	692 *value = CCtxParams->format;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	693 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	694 case ZSTD_c_compressionLevel :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	695 *value = CCtxParams->compressionLevel;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	696 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	697 case ZSTD_c_windowLog :
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	698 *value = (int)CCtxParams->cParams.windowLog;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	699 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	700 case ZSTD_c_hashLog :
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	701 *value = (int)CCtxParams->cParams.hashLog;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	702 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	703 case ZSTD_c_chainLog :
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	704 *value = (int)CCtxParams->cParams.chainLog;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	705 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	706 case ZSTD_c_searchLog :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	707 *value = CCtxParams->cParams.searchLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	708 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	709 case ZSTD_c_minMatch :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	710 *value = CCtxParams->cParams.minMatch;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	711 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	712 case ZSTD_c_targetLength :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	713 *value = CCtxParams->cParams.targetLength;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	714 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	715 case ZSTD_c_strategy :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	716 *value = (unsigned)CCtxParams->cParams.strategy;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	717 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	718 case ZSTD_c_contentSizeFlag :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	719 *value = CCtxParams->fParams.contentSizeFlag;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	720 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	721 case ZSTD_c_checksumFlag :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	722 *value = CCtxParams->fParams.checksumFlag;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	723 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	724 case ZSTD_c_dictIDFlag :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	725 *value = !CCtxParams->fParams.noDictIDFlag;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	726 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	727 case ZSTD_c_forceMaxWindow :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	728 *value = CCtxParams->forceWindow;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	729 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	730 case ZSTD_c_forceAttachDict :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	731 *value = CCtxParams->attachDictPref;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	732 break;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	733 case ZSTD_c_literalCompressionMode :
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	734 *value = CCtxParams->literalCompressionMode;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	735 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	736 case ZSTD_c_nbWorkers :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	737 #ifndef ZSTD_MULTITHREAD
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	738 assert(CCtxParams->nbWorkers == 0);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	739 #endif
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	740 *value = CCtxParams->nbWorkers;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	741 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	742 case ZSTD_c_jobSize :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	743 #ifndef ZSTD_MULTITHREAD
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	744 RETURN_ERROR(parameter_unsupported, "not compiled with multithreading");
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	745 #else
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	746 assert(CCtxParams->jobSize <= INT_MAX);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	747 *value = (int)CCtxParams->jobSize;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	748 break;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	749 #endif
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	750 case ZSTD_c_overlapLog :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	751 #ifndef ZSTD_MULTITHREAD
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	752 RETURN_ERROR(parameter_unsupported, "not compiled with multithreading");
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	753 #else
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	754 *value = CCtxParams->overlapLog;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	755 break;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	756 #endif
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	757 case ZSTD_c_rsyncable :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	758 #ifndef ZSTD_MULTITHREAD
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	759 RETURN_ERROR(parameter_unsupported, "not compiled with multithreading");
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	760 #else
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	761 *value = CCtxParams->rsyncable;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	762 break;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	763 #endif
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	764 case ZSTD_c_enableLongDistanceMatching :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	765 *value = CCtxParams->ldmParams.enableLdm;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	766 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	767 case ZSTD_c_ldmHashLog :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	768 *value = CCtxParams->ldmParams.hashLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	769 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	770 case ZSTD_c_ldmMinMatch :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	771 *value = CCtxParams->ldmParams.minMatchLength;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	772 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	773 case ZSTD_c_ldmBucketSizeLog :
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	774 *value = CCtxParams->ldmParams.bucketSizeLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	775 break;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	776 case ZSTD_c_ldmHashRateLog :
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	777 *value = CCtxParams->ldmParams.hashRateLog;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	778 break;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	779 case ZSTD_c_targetCBlockSize :
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	780 *value = (int)CCtxParams->targetCBlockSize;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	781 break;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	782 default: RETURN_ERROR(parameter_unsupported, "unknown parameter");
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	783 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	784 return 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	785 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	786
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	787 /** ZSTD_CCtx_setParametersUsingCCtxParams() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	788 * just applies `params` into `cctx`
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	789 * no action is performed, parameters are merely stored.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	790 * If ZSTDMT is enabled, parameters are pushed to cctx->mtctx.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	791 * This is possible even if a compression is ongoing.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	792 * In which case, new parameters will be applied on the fly, starting with next compression job.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	793 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	794 size_t ZSTD_CCtx_setParametersUsingCCtxParams(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	795 ZSTD_CCtx* cctx, const ZSTD_CCtx_params* params)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	796 {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	797 DEBUGLOG(4, "ZSTD_CCtx_setParametersUsingCCtxParams");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	798 RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	799 RETURN_ERROR_IF(cctx->cdict, stage_wrong);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	800
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	801 cctx->requestedParams = *params;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	802 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	803 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	804
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	805 ZSTDLIB_API size_t ZSTD_CCtx_setPledgedSrcSize(ZSTD_CCtx* cctx, unsigned long long pledgedSrcSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	806 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	807 DEBUGLOG(4, "ZSTD_CCtx_setPledgedSrcSize to %u bytes", (U32)pledgedSrcSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	808 RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	809 cctx->pledgedSrcSizePlusOne = pledgedSrcSize+1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	810 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	811 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	812
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	813 /**
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	814 * Initializes the local dict using the requested parameters.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	815 * NOTE: This does not use the pledged src size, because it may be used for more
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	816 * than one compression.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	817 */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	818 static size_t ZSTD_initLocalDict(ZSTD_CCtx* cctx)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	819 {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	820 ZSTD_localDict* const dl = &cctx->localDict;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	821 ZSTD_compressionParameters const cParams = ZSTD_getCParamsFromCCtxParams(
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	822 &cctx->requestedParams, 0, dl->dictSize);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	823 if (dl->dict == NULL) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	824 /* No local dictionary. */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	825 assert(dl->dictBuffer == NULL);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	826 assert(dl->cdict == NULL);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	827 assert(dl->dictSize == 0);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	828 return 0;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	829 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	830 if (dl->cdict != NULL) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	831 assert(cctx->cdict == dl->cdict);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	832 /* Local dictionary already initialized. */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	833 return 0;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	834 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	835 assert(dl->dictSize > 0);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	836 assert(cctx->cdict == NULL);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	837 assert(cctx->prefixDict.dict == NULL);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	838
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	839 dl->cdict = ZSTD_createCDict_advanced(
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	840 dl->dict,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	841 dl->dictSize,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	842 ZSTD_dlm_byRef,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	843 dl->dictContentType,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	844 cParams,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	845 cctx->customMem);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	846 RETURN_ERROR_IF(!dl->cdict, memory_allocation);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	847 cctx->cdict = dl->cdict;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	848 return 0;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	849 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	850
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	851 size_t ZSTD_CCtx_loadDictionary_advanced(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	852 ZSTD_CCtx* cctx, const void* dict, size_t dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	853 ZSTD_dictLoadMethod_e dictLoadMethod, ZSTD_dictContentType_e dictContentType)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	854 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	855 RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	856 RETURN_ERROR_IF(cctx->staticSize, memory_allocation,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	857 "no malloc for static CCtx");
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	858 DEBUGLOG(4, "ZSTD_CCtx_loadDictionary_advanced (size: %u)", (U32)dictSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	859 ZSTD_clearAllDicts(cctx); /* in case one already exists */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	860 if (dict == NULL \|\| dictSize == 0) /* no dictionary mode */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	861 return 0;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	862 if (dictLoadMethod == ZSTD_dlm_byRef) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	863 cctx->localDict.dict = dict;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	864 } else {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	865 void* dictBuffer = ZSTD_malloc(dictSize, cctx->customMem);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	866 RETURN_ERROR_IF(!dictBuffer, memory_allocation);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	867 memcpy(dictBuffer, dict, dictSize);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	868 cctx->localDict.dictBuffer = dictBuffer;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	869 cctx->localDict.dict = dictBuffer;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	870 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	871 cctx->localDict.dictSize = dictSize;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	872 cctx->localDict.dictContentType = dictContentType;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	873 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	874 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	875
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	876 ZSTDLIB_API size_t ZSTD_CCtx_loadDictionary_byReference(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	877 ZSTD_CCtx* cctx, const void* dict, size_t dictSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	878 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	879 return ZSTD_CCtx_loadDictionary_advanced(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	880 cctx, dict, dictSize, ZSTD_dlm_byRef, ZSTD_dct_auto);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	881 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	882
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	883 ZSTDLIB_API size_t ZSTD_CCtx_loadDictionary(ZSTD_CCtx* cctx, const void* dict, size_t dictSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	884 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	885 return ZSTD_CCtx_loadDictionary_advanced(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	886 cctx, dict, dictSize, ZSTD_dlm_byCopy, ZSTD_dct_auto);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	887 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	888
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	889
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	890 size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	891 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	892 RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	893 /* Free the existing local cdict (if any) to save memory. */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	894 ZSTD_clearAllDicts(cctx);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	895 cctx->cdict = cdict;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	896 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	897 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	898
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	899 size_t ZSTD_CCtx_refPrefix(ZSTD_CCtx* cctx, const void* prefix, size_t prefixSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	900 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	901 return ZSTD_CCtx_refPrefix_advanced(cctx, prefix, prefixSize, ZSTD_dct_rawContent);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	902 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	903
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	904 size_t ZSTD_CCtx_refPrefix_advanced(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	905 ZSTD_CCtx* cctx, const void* prefix, size_t prefixSize, ZSTD_dictContentType_e dictContentType)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	906 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	907 RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	908 ZSTD_clearAllDicts(cctx);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	909 cctx->prefixDict.dict = prefix;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	910 cctx->prefixDict.dictSize = prefixSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	911 cctx->prefixDict.dictContentType = dictContentType;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	912 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	913 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	914
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	915 /*! ZSTD_CCtx_reset() :
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	916 * Also dumps dictionary */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	917 size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx, ZSTD_ResetDirective reset)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	918 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	919 if ( (reset == ZSTD_reset_session_only)
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	920 \|\| (reset == ZSTD_reset_session_and_parameters) ) {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	921 cctx->streamStage = zcss_init;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	922 cctx->pledgedSrcSizePlusOne = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	923 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	924 if ( (reset == ZSTD_reset_parameters)
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	925 \|\| (reset == ZSTD_reset_session_and_parameters) ) {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	926 RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	927 ZSTD_clearAllDicts(cctx);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	928 return ZSTD_CCtxParams_reset(&cctx->requestedParams);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	929 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	930 return 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	931 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	932
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	933
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	934 /** ZSTD_checkCParams() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	935 control CParam values remain within authorized range.
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	936 @return : 0, or an error code if one value is beyond authorized range */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	937 size_t ZSTD_checkCParams(ZSTD_compressionParameters cParams)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	938 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	939 BOUNDCHECK(ZSTD_c_windowLog, (int)cParams.windowLog);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	940 BOUNDCHECK(ZSTD_c_chainLog, (int)cParams.chainLog);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	941 BOUNDCHECK(ZSTD_c_hashLog, (int)cParams.hashLog);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	942 BOUNDCHECK(ZSTD_c_searchLog, (int)cParams.searchLog);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	943 BOUNDCHECK(ZSTD_c_minMatch, (int)cParams.minMatch);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	944 BOUNDCHECK(ZSTD_c_targetLength,(int)cParams.targetLength);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	945 BOUNDCHECK(ZSTD_c_strategy, cParams.strategy);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	946 return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	947 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	948
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	949 /** ZSTD_clampCParams() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	950 * make CParam values within valid range.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	951 * @return : valid CParams */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	952 static ZSTD_compressionParameters
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	953 ZSTD_clampCParams(ZSTD_compressionParameters cParams)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	954 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	955 # define CLAMP_TYPE(cParam, val, type) { \
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	956 ZSTD_bounds const bounds = ZSTD_cParam_getBounds(cParam); \
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	957 if ((int)val<bounds.lowerBound) val=(type)bounds.lowerBound; \
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	958 else if ((int)val>bounds.upperBound) val=(type)bounds.upperBound; \
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	959 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	960 # define CLAMP(cParam, val) CLAMP_TYPE(cParam, val, unsigned)
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	961 CLAMP(ZSTD_c_windowLog, cParams.windowLog);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	962 CLAMP(ZSTD_c_chainLog, cParams.chainLog);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	963 CLAMP(ZSTD_c_hashLog, cParams.hashLog);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	964 CLAMP(ZSTD_c_searchLog, cParams.searchLog);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	965 CLAMP(ZSTD_c_minMatch, cParams.minMatch);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	966 CLAMP(ZSTD_c_targetLength,cParams.targetLength);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	967 CLAMP_TYPE(ZSTD_c_strategy,cParams.strategy, ZSTD_strategy);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	968 return cParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	969 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	970
30822 b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	971 /** ZSTD_cycleLog() :
b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	972 * condition for correct operation : hashLog > 1 */
b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	973 static U32 ZSTD_cycleLog(U32 hashLog, ZSTD_strategy strat)
b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	974 {
b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	975 U32 const btScale = ((U32)strat >= (U32)ZSTD_btlazy2);
b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	976 return hashLog - btScale;
b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	977 }
b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	978
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	979 /** ZSTD_adjustCParams_internal() :
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	980 * optimize `cPar` for a specified input (`srcSize` and `dictSize`).
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	981 * mostly downsize to reduce memory consumption and initialization latency.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	982 * `srcSize` can be ZSTD_CONTENTSIZE_UNKNOWN when not known.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	983 * note : for the time being, `srcSize==0` means "unknown" too, for compatibility with older convention.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	984 * condition : cPar is presumed validated (can be checked using ZSTD_checkCParams()). */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	985 static ZSTD_compressionParameters
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	986 ZSTD_adjustCParams_internal(ZSTD_compressionParameters cPar,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	987 unsigned long long srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	988 size_t dictSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	989 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	990 static const U64 minSrcSize = 513; /* (1<<9) + 1 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	991 static const U64 maxWindowResize = 1ULL << (ZSTD_WINDOWLOG_MAX-1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	992 assert(ZSTD_checkCParams(cPar)==0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	993
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	994 if (dictSize && (srcSize+1<2) /* ZSTD_CONTENTSIZE_UNKNOWN and 0 mean "unknown" */ )
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	995 srcSize = minSrcSize; /* presumed small when there is a dictionary */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	996 else if (srcSize == 0)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	997 srcSize = ZSTD_CONTENTSIZE_UNKNOWN; /* 0 == unknown : presumed large */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	998
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	999 /* resize windowLog if input is small enough, to use less memory */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1000 if ( (srcSize < maxWindowResize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1001 && (dictSize < maxWindowResize) ) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1002 U32 const tSize = (U32)(srcSize + dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1003 static U32 const hashSizeMin = 1 << ZSTD_HASHLOG_MIN;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1004 U32 const srcLog = (tSize < hashSizeMin) ? ZSTD_HASHLOG_MIN :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1005 ZSTD_highbit32(tSize-1) + 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1006 if (cPar.windowLog > srcLog) cPar.windowLog = srcLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1007 }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1008 if (cPar.hashLog > cPar.windowLog+1) cPar.hashLog = cPar.windowLog+1;
30822 b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	1009 { U32 const cycleLog = ZSTD_cycleLog(cPar.chainLog, cPar.strategy);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1010 if (cycleLog > cPar.windowLog)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1011 cPar.chainLog -= (cycleLog - cPar.windowLog);
30822 b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	1012 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1013
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1014 if (cPar.windowLog < ZSTD_WINDOWLOG_ABSOLUTEMIN)
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1015 cPar.windowLog = ZSTD_WINDOWLOG_ABSOLUTEMIN; /* minimum wlog required for valid frame header */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1016
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1017 return cPar;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1018 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1019
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1020 ZSTD_compressionParameters
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1021 ZSTD_adjustCParams(ZSTD_compressionParameters cPar,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1022 unsigned long long srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1023 size_t dictSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1024 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1025 cPar = ZSTD_clampCParams(cPar); /* resulting cPar is necessarily valid (all parameters within range) */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1026 return ZSTD_adjustCParams_internal(cPar, srcSize, dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1027 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1028
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1029 ZSTD_compressionParameters ZSTD_getCParamsFromCCtxParams(
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1030 const ZSTD_CCtx_params* CCtxParams, U64 srcSizeHint, size_t dictSize)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1031 {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1032 ZSTD_compressionParameters cParams = ZSTD_getCParams(CCtxParams->compressionLevel, srcSizeHint, dictSize);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1033 if (CCtxParams->ldmParams.enableLdm) cParams.windowLog = ZSTD_LDM_DEFAULT_WINDOW_LOG;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1034 if (CCtxParams->cParams.windowLog) cParams.windowLog = CCtxParams->cParams.windowLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1035 if (CCtxParams->cParams.hashLog) cParams.hashLog = CCtxParams->cParams.hashLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1036 if (CCtxParams->cParams.chainLog) cParams.chainLog = CCtxParams->cParams.chainLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1037 if (CCtxParams->cParams.searchLog) cParams.searchLog = CCtxParams->cParams.searchLog;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1038 if (CCtxParams->cParams.minMatch) cParams.minMatch = CCtxParams->cParams.minMatch;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1039 if (CCtxParams->cParams.targetLength) cParams.targetLength = CCtxParams->cParams.targetLength;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1040 if (CCtxParams->cParams.strategy) cParams.strategy = CCtxParams->cParams.strategy;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1041 assert(!ZSTD_checkCParams(cParams));
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1042 return ZSTD_adjustCParams_internal(cParams, srcSizeHint, dictSize);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1043 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1044
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1045 static size_t
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1046 ZSTD_sizeof_matchState(const ZSTD_compressionParameters* const cParams,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1047 const U32 forCCtx)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1048 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1049 size_t const chainSize = (cParams->strategy == ZSTD_fast) ? 0 : ((size_t)1 << cParams->chainLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1050 size_t const hSize = ((size_t)1) << cParams->hashLog;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1051 U32 const hashLog3 = (forCCtx && cParams->minMatch==3) ? MIN(ZSTD_HASHLOG3_MAX, cParams->windowLog) : 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1052 size_t const h3Size = ((size_t)1) << hashLog3;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1053 size_t const tableSpace = (chainSize + hSize + h3Size) * sizeof(U32);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1054 size_t const optPotentialSpace = ((MaxML+1) + (MaxLL+1) + (MaxOff+1) + (1<<Litbits)) * sizeof(U32)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1055 + (ZSTD_OPT_NUM+1) * (sizeof(ZSTD_match_t)+sizeof(ZSTD_optimal_t));
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1056 size_t const optSpace = (forCCtx && (cParams->strategy >= ZSTD_btopt))
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1057 ? optPotentialSpace
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1058 : 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1059 DEBUGLOG(4, "chainSize: %u - hSize: %u - h3Size: %u",
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1060 (U32)chainSize, (U32)hSize, (U32)h3Size);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1061 return tableSpace + optSpace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1062 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1063
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1064 size_t ZSTD_estimateCCtxSize_usingCCtxParams(const ZSTD_CCtx_params* params)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1065 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1066 RETURN_ERROR_IF(params->nbWorkers > 0, GENERIC, "Estimate CCtx size is supported for single-threaded compression only.");
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1067 { ZSTD_compressionParameters const cParams =
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1068 ZSTD_getCParamsFromCCtxParams(params, 0, 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1069 size_t const blockSize = MIN(ZSTD_BLOCKSIZE_MAX, (size_t)1 << cParams.windowLog);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1070 U32 const divider = (cParams.minMatch==3) ? 3 : 4;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1071 size_t const maxNbSeq = blockSize / divider;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1072 size_t const tokenSpace = WILDCOPY_OVERLENGTH + blockSize + 11*maxNbSeq;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1073 size_t const entropySpace = HUF_WORKSPACE_SIZE;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1074 size_t const blockStateSpace = 2 * sizeof(ZSTD_compressedBlockState_t);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1075 size_t const matchStateSize = ZSTD_sizeof_matchState(&cParams, /* forCCtx */ 1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1076
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1077 size_t const ldmSpace = ZSTD_ldm_getTableSize(params->ldmParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1078 size_t const ldmSeqSpace = ZSTD_ldm_getMaxNbSeq(params->ldmParams, blockSize) * sizeof(rawSeq);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1079
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1080 size_t const neededSpace = entropySpace + blockStateSpace + tokenSpace +
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1081 matchStateSize + ldmSpace + ldmSeqSpace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1082
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1083 DEBUGLOG(5, "sizeof(ZSTD_CCtx) : %u", (U32)sizeof(ZSTD_CCtx));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1084 DEBUGLOG(5, "estimate workSpace : %u", (U32)neededSpace);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1085 return sizeof(ZSTD_CCtx) + neededSpace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1086 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1087 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1088
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1089 size_t ZSTD_estimateCCtxSize_usingCParams(ZSTD_compressionParameters cParams)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1090 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1091 ZSTD_CCtx_params const params = ZSTD_makeCCtxParamsFromCParams(cParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1092 return ZSTD_estimateCCtxSize_usingCCtxParams(&params);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1093 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1094
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1095 static size_t ZSTD_estimateCCtxSize_internal(int compressionLevel)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1096 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1097 ZSTD_compressionParameters const cParams = ZSTD_getCParams(compressionLevel, 0, 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1098 return ZSTD_estimateCCtxSize_usingCParams(cParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1099 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1100
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1101 size_t ZSTD_estimateCCtxSize(int compressionLevel)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1102 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1103 int level;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1104 size_t memBudget = 0;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1105 for (level=MIN(compressionLevel, 1); level<=compressionLevel; level++) {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1106 size_t const newMB = ZSTD_estimateCCtxSize_internal(level);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1107 if (newMB > memBudget) memBudget = newMB;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1108 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1109 return memBudget;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1110 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1111
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1112 size_t ZSTD_estimateCStreamSize_usingCCtxParams(const ZSTD_CCtx_params* params)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1113 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1114 RETURN_ERROR_IF(params->nbWorkers > 0, GENERIC, "Estimate CCtx size is supported for single-threaded compression only.");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1115 { ZSTD_compressionParameters const cParams =
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1116 ZSTD_getCParamsFromCCtxParams(params, 0, 0);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1117 size_t const CCtxSize = ZSTD_estimateCCtxSize_usingCCtxParams(params);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1118 size_t const blockSize = MIN(ZSTD_BLOCKSIZE_MAX, (size_t)1 << cParams.windowLog);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1119 size_t const inBuffSize = ((size_t)1 << cParams.windowLog) + blockSize;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1120 size_t const outBuffSize = ZSTD_compressBound(blockSize) + 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1121 size_t const streamingSize = inBuffSize + outBuffSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1122
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1123 return CCtxSize + streamingSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1124 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1125 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1126
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1127 size_t ZSTD_estimateCStreamSize_usingCParams(ZSTD_compressionParameters cParams)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1128 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1129 ZSTD_CCtx_params const params = ZSTD_makeCCtxParamsFromCParams(cParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1130 return ZSTD_estimateCStreamSize_usingCCtxParams(&params);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1131 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1132
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1133 static size_t ZSTD_estimateCStreamSize_internal(int compressionLevel)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1134 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1135 ZSTD_compressionParameters const cParams = ZSTD_getCParams(compressionLevel, 0, 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1136 return ZSTD_estimateCStreamSize_usingCParams(cParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1137 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1138
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1139 size_t ZSTD_estimateCStreamSize(int compressionLevel)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1140 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1141 int level;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1142 size_t memBudget = 0;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1143 for (level=MIN(compressionLevel, 1); level<=compressionLevel; level++) {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1144 size_t const newMB = ZSTD_estimateCStreamSize_internal(level);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1145 if (newMB > memBudget) memBudget = newMB;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1146 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1147 return memBudget;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1148 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1149
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1150 /* ZSTD_getFrameProgression():
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1151 * tells how much data has been consumed (input) and produced (output) for current frame.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1152 * able to count progression inside worker threads (non-blocking mode).
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1153 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1154 ZSTD_frameProgression ZSTD_getFrameProgression(const ZSTD_CCtx* cctx)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1155 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1156 #ifdef ZSTD_MULTITHREAD
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1157 if (cctx->appliedParams.nbWorkers > 0) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1158 return ZSTDMT_getFrameProgression(cctx->mtctx);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1159 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1160 #endif
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1161 { ZSTD_frameProgression fp;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1162 size_t const buffered = (cctx->inBuff == NULL) ? 0 :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1163 cctx->inBuffPos - cctx->inToCompress;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1164 if (buffered) assert(cctx->inBuffPos >= cctx->inToCompress);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1165 assert(buffered <= ZSTD_BLOCKSIZE_MAX);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1166 fp.ingested = cctx->consumedSrcSize + buffered;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1167 fp.consumed = cctx->consumedSrcSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1168 fp.produced = cctx->producedCSize;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1169 fp.flushed = cctx->producedCSize; /* simplified; some data might still be left within streaming output buffer */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1170 fp.currentJobID = 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1171 fp.nbActiveWorkers = 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1172 return fp;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1173 } }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1174
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1175 /*! ZSTD_toFlushNow()
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1176 * Only useful for multithreading scenarios currently (nbWorkers >= 1).
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1177 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1178 size_t ZSTD_toFlushNow(ZSTD_CCtx* cctx)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1179 {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1180 #ifdef ZSTD_MULTITHREAD
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1181 if (cctx->appliedParams.nbWorkers > 0) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1182 return ZSTDMT_toFlushNow(cctx->mtctx);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1183 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1184 #endif
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1185 (void)cctx;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1186 return 0; /* over-simplification; could also check if context is currently running in streaming mode, and in which case, report how many bytes are left to be flushed within output buffer */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1187 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1188
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1189
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1190
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1191 static U32 ZSTD_equivalentCParams(ZSTD_compressionParameters cParams1,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1192 ZSTD_compressionParameters cParams2)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1193 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1194 return (cParams1.hashLog == cParams2.hashLog)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1195 & (cParams1.chainLog == cParams2.chainLog)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1196 & (cParams1.strategy == cParams2.strategy) /* opt parser space */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1197 & ((cParams1.minMatch==3) == (cParams2.minMatch==3)); /* hashlog3 space */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1198 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1199
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1200 static void ZSTD_assertEqualCParams(ZSTD_compressionParameters cParams1,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1201 ZSTD_compressionParameters cParams2)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1202 {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1203 (void)cParams1;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1204 (void)cParams2;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1205 assert(cParams1.windowLog == cParams2.windowLog);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1206 assert(cParams1.chainLog == cParams2.chainLog);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1207 assert(cParams1.hashLog == cParams2.hashLog);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1208 assert(cParams1.searchLog == cParams2.searchLog);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1209 assert(cParams1.minMatch == cParams2.minMatch);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1210 assert(cParams1.targetLength == cParams2.targetLength);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1211 assert(cParams1.strategy == cParams2.strategy);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1212 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1213
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1214 /** The parameters are equivalent if ldm is not enabled in both sets or
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1215 * all the parameters are equivalent. */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1216 static U32 ZSTD_equivalentLdmParams(ldmParams_t ldmParams1,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1217 ldmParams_t ldmParams2)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1218 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1219 return (!ldmParams1.enableLdm && !ldmParams2.enableLdm) \|\|
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1220 (ldmParams1.enableLdm == ldmParams2.enableLdm &&
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1221 ldmParams1.hashLog == ldmParams2.hashLog &&
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1222 ldmParams1.bucketSizeLog == ldmParams2.bucketSizeLog &&
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1223 ldmParams1.minMatchLength == ldmParams2.minMatchLength &&
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1224 ldmParams1.hashRateLog == ldmParams2.hashRateLog);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1225 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1226
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1227 typedef enum { ZSTDb_not_buffered, ZSTDb_buffered } ZSTD_buffered_policy_e;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1228
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1229 /* ZSTD_sufficientBuff() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1230 * check internal buffers exist for streaming if buffPol == ZSTDb_buffered .
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1231 * Note : they are assumed to be correctly sized if ZSTD_equivalentCParams()==1 */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1232 static U32 ZSTD_sufficientBuff(size_t bufferSize1, size_t maxNbSeq1,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1233 size_t maxNbLit1,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1234 ZSTD_buffered_policy_e buffPol2,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1235 ZSTD_compressionParameters cParams2,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1236 U64 pledgedSrcSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1237 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1238 size_t const windowSize2 = MAX(1, (size_t)MIN(((U64)1 << cParams2.windowLog), pledgedSrcSize));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1239 size_t const blockSize2 = MIN(ZSTD_BLOCKSIZE_MAX, windowSize2);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1240 size_t const maxNbSeq2 = blockSize2 / ((cParams2.minMatch == 3) ? 3 : 4);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1241 size_t const maxNbLit2 = blockSize2;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1242 size_t const neededBufferSize2 = (buffPol2==ZSTDb_buffered) ? windowSize2 + blockSize2 : 0;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1243 DEBUGLOG(4, "ZSTD_sufficientBuff: is neededBufferSize2=%u <= bufferSize1=%u",
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1244 (U32)neededBufferSize2, (U32)bufferSize1);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1245 DEBUGLOG(4, "ZSTD_sufficientBuff: is maxNbSeq2=%u <= maxNbSeq1=%u",
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1246 (U32)maxNbSeq2, (U32)maxNbSeq1);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1247 DEBUGLOG(4, "ZSTD_sufficientBuff: is maxNbLit2=%u <= maxNbLit1=%u",
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1248 (U32)maxNbLit2, (U32)maxNbLit1);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1249 return (maxNbLit2 <= maxNbLit1)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1250 & (maxNbSeq2 <= maxNbSeq1)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1251 & (neededBufferSize2 <= bufferSize1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1252 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1253
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1254 /** Equivalence for resetCCtx purposes */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1255 static U32 ZSTD_equivalentParams(ZSTD_CCtx_params params1,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1256 ZSTD_CCtx_params params2,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1257 size_t buffSize1,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1258 size_t maxNbSeq1, size_t maxNbLit1,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1259 ZSTD_buffered_policy_e buffPol2,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1260 U64 pledgedSrcSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1261 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1262 DEBUGLOG(4, "ZSTD_equivalentParams: pledgedSrcSize=%u", (U32)pledgedSrcSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1263 if (!ZSTD_equivalentCParams(params1.cParams, params2.cParams)) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1264 DEBUGLOG(4, "ZSTD_equivalentCParams() == 0");
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1265 return 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1266 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1267 if (!ZSTD_equivalentLdmParams(params1.ldmParams, params2.ldmParams)) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1268 DEBUGLOG(4, "ZSTD_equivalentLdmParams() == 0");
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1269 return 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1270 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1271 if (!ZSTD_sufficientBuff(buffSize1, maxNbSeq1, maxNbLit1, buffPol2,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1272 params2.cParams, pledgedSrcSize)) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1273 DEBUGLOG(4, "ZSTD_sufficientBuff() == 0");
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1274 return 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1275 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1276 return 1;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1277 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1278
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1279 static void ZSTD_reset_compressedBlockState(ZSTD_compressedBlockState_t* bs)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1280 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1281 int i;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1282 for (i = 0; i < ZSTD_REP_NUM; ++i)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1283 bs->rep[i] = repStartValue[i];
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1284 bs->entropy.huf.repeatMode = HUF_repeat_none;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1285 bs->entropy.fse.offcode_repeatMode = FSE_repeat_none;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1286 bs->entropy.fse.matchlength_repeatMode = FSE_repeat_none;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1287 bs->entropy.fse.litlength_repeatMode = FSE_repeat_none;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1288 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1289
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1290 /*! ZSTD_invalidateMatchState()
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1291 * Invalidate all the matches in the match finder tables.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1292 * Requires nextSrc and base to be set (can be NULL).
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1293 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1294 static void ZSTD_invalidateMatchState(ZSTD_matchState_t* ms)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1295 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1296 ZSTD_window_clear(&ms->window);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1297
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1298 ms->nextToUpdate = ms->window.dictLimit;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1299 ms->loadedDictEnd = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1300 ms->opt.litLengthSum = 0; /* force reset of btopt stats */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1301 ms->dictMatchState = NULL;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1302 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1303
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1304 /*! ZSTD_continueCCtx() :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1305 * reuse CCtx without reset (note : requires no dictionary) */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1306 static size_t ZSTD_continueCCtx(ZSTD_CCtx* cctx, ZSTD_CCtx_params params, U64 pledgedSrcSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1307 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1308 size_t const windowSize = MAX(1, (size_t)MIN(((U64)1 << params.cParams.windowLog), pledgedSrcSize));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1309 size_t const blockSize = MIN(ZSTD_BLOCKSIZE_MAX, windowSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1310 DEBUGLOG(4, "ZSTD_continueCCtx: re-use context in place");
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1311
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1312 cctx->blockSize = blockSize; /* previous block size could be different even for same windowLog, due to pledgedSrcSize */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1313 cctx->appliedParams = params;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1314 cctx->blockState.matchState.cParams = params.cParams;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1315 cctx->pledgedSrcSizePlusOne = pledgedSrcSize+1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1316 cctx->consumedSrcSize = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1317 cctx->producedCSize = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1318 if (pledgedSrcSize == ZSTD_CONTENTSIZE_UNKNOWN)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1319 cctx->appliedParams.fParams.contentSizeFlag = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1320 DEBUGLOG(4, "pledged content size : %u ; flag : %u",
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1321 (U32)pledgedSrcSize, cctx->appliedParams.fParams.contentSizeFlag);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1322 cctx->stage = ZSTDcs_init;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1323 cctx->dictID = 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1324 if (params.ldmParams.enableLdm)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1325 ZSTD_window_clear(&cctx->ldmState.window);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1326 ZSTD_referenceExternalSequences(cctx, NULL, 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1327 ZSTD_invalidateMatchState(&cctx->blockState.matchState);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1328 ZSTD_reset_compressedBlockState(cctx->blockState.prevCBlock);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1329 XXH64_reset(&cctx->xxhState, 0);
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1330 return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1331 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1332
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1333 typedef enum { ZSTDcrp_continue, ZSTDcrp_noMemset } ZSTD_compResetPolicy_e;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1334
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1335 typedef enum { ZSTD_resetTarget_CDict, ZSTD_resetTarget_CCtx } ZSTD_resetTarget_e;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1336
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1337 static void*
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1338 ZSTD_reset_matchState(ZSTD_matchState_t* ms,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1339 void* ptr,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1340 const ZSTD_compressionParameters* cParams,
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1341 ZSTD_compResetPolicy_e const crp, ZSTD_resetTarget_e const forWho)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1342 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1343 size_t const chainSize = (cParams->strategy == ZSTD_fast) ? 0 : ((size_t)1 << cParams->chainLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1344 size_t const hSize = ((size_t)1) << cParams->hashLog;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1345 U32 const hashLog3 = ((forWho == ZSTD_resetTarget_CCtx) && cParams->minMatch==3) ? MIN(ZSTD_HASHLOG3_MAX, cParams->windowLog) : 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1346 size_t const h3Size = ((size_t)1) << hashLog3;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1347 size_t const tableSpace = (chainSize + hSize + h3Size) * sizeof(U32);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1348
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1349 assert(((size_t)ptr & 3) == 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1350
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1351 ms->hashLog3 = hashLog3;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1352 memset(&ms->window, 0, sizeof(ms->window));
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1353 ms->window.dictLimit = 1; /* start from 1, so that 1st position is valid */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1354 ms->window.lowLimit = 1; /* it ensures first and later CCtx usages compress the same */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1355 ms->window.nextSrc = ms->window.base + 1; /* see issue #1241 */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1356 ZSTD_invalidateMatchState(ms);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1357
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1358 /* opt parser space */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1359 if ((forWho == ZSTD_resetTarget_CCtx) && (cParams->strategy >= ZSTD_btopt)) {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1360 DEBUGLOG(4, "reserving optimal parser space");
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1361 ms->opt.litFreq = (unsigned*)ptr;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1362 ms->opt.litLengthFreq = ms->opt.litFreq + (1<<Litbits);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1363 ms->opt.matchLengthFreq = ms->opt.litLengthFreq + (MaxLL+1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1364 ms->opt.offCodeFreq = ms->opt.matchLengthFreq + (MaxML+1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1365 ptr = ms->opt.offCodeFreq + (MaxOff+1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1366 ms->opt.matchTable = (ZSTD_match_t*)ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1367 ptr = ms->opt.matchTable + ZSTD_OPT_NUM+1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1368 ms->opt.priceTable = (ZSTD_optimal_t*)ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1369 ptr = ms->opt.priceTable + ZSTD_OPT_NUM+1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1370 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1371
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1372 /* table Space */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1373 DEBUGLOG(4, "reset table : %u", crp!=ZSTDcrp_noMemset);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1374 assert(((size_t)ptr & 3) == 0); /* ensure ptr is properly aligned */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1375 if (crp!=ZSTDcrp_noMemset) memset(ptr, 0, tableSpace); /* reset tables only */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1376 ms->hashTable = (U32*)(ptr);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1377 ms->chainTable = ms->hashTable + hSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1378 ms->hashTable3 = ms->chainTable + chainSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1379 ptr = ms->hashTable3 + h3Size;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1380
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1381 ms->cParams = *cParams;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1382
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1383 assert(((size_t)ptr & 3) == 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1384 return ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1385 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1386
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1387 /* ZSTD_indexTooCloseToMax() :
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1388 * minor optimization : prefer memset() rather than reduceIndex()
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1389 * which is measurably slow in some circumstances (reported for Visual Studio).
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1390 * Works when re-using a context for a lot of smallish inputs :
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1391 * if all inputs are smaller than ZSTD_INDEXOVERFLOW_MARGIN,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1392 * memset() will be triggered before reduceIndex().
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1393 */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1394 #define ZSTD_INDEXOVERFLOW_MARGIN (16 MB)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1395 static int ZSTD_indexTooCloseToMax(ZSTD_window_t w)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1396 {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1397 return (size_t)(w.nextSrc - w.base) > (ZSTD_CURRENT_MAX - ZSTD_INDEXOVERFLOW_MARGIN);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1398 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1399
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1400 #define ZSTD_WORKSPACETOOLARGE_FACTOR 3 /* define "workspace is too large" as this number of times larger than needed */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1401 #define ZSTD_WORKSPACETOOLARGE_MAXDURATION 128 /* when workspace is continuously too large
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1402 * during at least this number of times,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1403 * context's memory usage is considered wasteful,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1404 * because it's sized to handle a worst case scenario which rarely happens.
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1405 * In which case, resize it down to free some memory */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1406
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1407 /*! ZSTD_resetCCtx_internal() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1408 note : `params` are assumed fully validated at this stage */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1409 static size_t ZSTD_resetCCtx_internal(ZSTD_CCtx* zc,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1410 ZSTD_CCtx_params params,
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1411 U64 const pledgedSrcSize,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1412 ZSTD_compResetPolicy_e const crp,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1413 ZSTD_buffered_policy_e const zbuff)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1414 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1415 DEBUGLOG(4, "ZSTD_resetCCtx_internal: pledgedSrcSize=%u, wlog=%u",
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1416 (U32)pledgedSrcSize, params.cParams.windowLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1417 assert(!ZSTD_isError(ZSTD_checkCParams(params.cParams)));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1418
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1419 if (crp == ZSTDcrp_continue) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1420 if (ZSTD_equivalentParams(zc->appliedParams, params,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1421 zc->inBuffSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1422 zc->seqStore.maxNbSeq, zc->seqStore.maxNbLit,
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1423 zbuff, pledgedSrcSize) ) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1424 DEBUGLOG(4, "ZSTD_equivalentParams()==1 -> consider continue mode");
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1425 zc->workSpaceOversizedDuration += (zc->workSpaceOversizedDuration > 0); /* if it was too large, it still is */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1426 if (zc->workSpaceOversizedDuration <= ZSTD_WORKSPACETOOLARGE_MAXDURATION) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1427 DEBUGLOG(4, "continue mode confirmed (wLog1=%u, blockSize1=%zu)",
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1428 zc->appliedParams.cParams.windowLog, zc->blockSize);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1429 if (ZSTD_indexTooCloseToMax(zc->blockState.matchState.window)) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1430 /* prefer a reset, faster than a rescale */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1431 ZSTD_reset_matchState(&zc->blockState.matchState,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1432 zc->entropyWorkspace + HUF_WORKSPACE_SIZE_U32,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1433 &params.cParams,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1434 crp, ZSTD_resetTarget_CCtx);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1435 }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1436 return ZSTD_continueCCtx(zc, params, pledgedSrcSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1437 } } }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1438 DEBUGLOG(4, "ZSTD_equivalentParams()==0 -> reset CCtx");
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1439
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1440 if (params.ldmParams.enableLdm) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1441 /* Adjust long distance matching parameters */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1442 ZSTD_ldm_adjustParameters(&params.ldmParams, &params.cParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1443 assert(params.ldmParams.hashLog >= params.ldmParams.bucketSizeLog);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1444 assert(params.ldmParams.hashRateLog < 32);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1445 zc->ldmState.hashPower = ZSTD_rollingHash_primePower(params.ldmParams.minMatchLength);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1446 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1447
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1448 { size_t const windowSize = MAX(1, (size_t)MIN(((U64)1 << params.cParams.windowLog), pledgedSrcSize));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1449 size_t const blockSize = MIN(ZSTD_BLOCKSIZE_MAX, windowSize);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1450 U32 const divider = (params.cParams.minMatch==3) ? 3 : 4;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1451 size_t const maxNbSeq = blockSize / divider;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1452 size_t const tokenSpace = WILDCOPY_OVERLENGTH + blockSize + 11*maxNbSeq;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1453 size_t const buffOutSize = (zbuff==ZSTDb_buffered) ? ZSTD_compressBound(blockSize)+1 : 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1454 size_t const buffInSize = (zbuff==ZSTDb_buffered) ? windowSize + blockSize : 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1455 size_t const matchStateSize = ZSTD_sizeof_matchState(&params.cParams, /* forCCtx */ 1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1456 size_t const maxNbLdmSeq = ZSTD_ldm_getMaxNbSeq(params.ldmParams, blockSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1457 void* ptr; /* used to partition workSpace */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1458
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1459 /* Check if workSpace is large enough, alloc a new one if needed */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1460 { size_t const entropySpace = HUF_WORKSPACE_SIZE;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1461 size_t const blockStateSpace = 2 * sizeof(ZSTD_compressedBlockState_t);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1462 size_t const bufferSpace = buffInSize + buffOutSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1463 size_t const ldmSpace = ZSTD_ldm_getTableSize(params.ldmParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1464 size_t const ldmSeqSpace = maxNbLdmSeq * sizeof(rawSeq);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1465
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1466 size_t const neededSpace = entropySpace + blockStateSpace + ldmSpace +
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1467 ldmSeqSpace + matchStateSize + tokenSpace +
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1468 bufferSpace;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1469
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1470 int const workSpaceTooSmall = zc->workSpaceSize < neededSpace;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1471 int const workSpaceTooLarge = zc->workSpaceSize > ZSTD_WORKSPACETOOLARGE_FACTOR * neededSpace;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1472 int const workSpaceWasteful = workSpaceTooLarge && (zc->workSpaceOversizedDuration > ZSTD_WORKSPACETOOLARGE_MAXDURATION);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1473 zc->workSpaceOversizedDuration = workSpaceTooLarge ? zc->workSpaceOversizedDuration+1 : 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1474
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1475 DEBUGLOG(4, "Need %zuKB workspace, including %zuKB for match state, and %zuKB for buffers",
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1476 neededSpace>>10, matchStateSize>>10, bufferSpace>>10);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1477 DEBUGLOG(4, "windowSize: %zu - blockSize: %zu", windowSize, blockSize);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1478
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1479 if (workSpaceTooSmall \|\| workSpaceWasteful) {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1480 DEBUGLOG(4, "Resize workSpaceSize from %zuKB to %zuKB",
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1481 zc->workSpaceSize >> 10,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1482 neededSpace >> 10);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1483
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1484 RETURN_ERROR_IF(zc->staticSize, memory_allocation, "static cctx : no resize");
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1485
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1486 zc->workSpaceSize = 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1487 ZSTD_free(zc->workSpace, zc->customMem);
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1488 zc->workSpace = ZSTD_malloc(neededSpace, zc->customMem);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1489 RETURN_ERROR_IF(zc->workSpace == NULL, memory_allocation);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1490 zc->workSpaceSize = neededSpace;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1491 zc->workSpaceOversizedDuration = 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1492
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1493 /* Statically sized space.
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1494 * entropyWorkspace never moves,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1495 * though prev/next block swap places */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1496 assert(((size_t)zc->workSpace & 3) == 0); /* ensure correct alignment */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1497 assert(zc->workSpaceSize >= 2 * sizeof(ZSTD_compressedBlockState_t));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1498 zc->blockState.prevCBlock = (ZSTD_compressedBlockState_t*)zc->workSpace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1499 zc->blockState.nextCBlock = zc->blockState.prevCBlock + 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1500 ptr = zc->blockState.nextCBlock + 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1501 zc->entropyWorkspace = (U32*)ptr;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1502 } }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1503
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1504 /* init params */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1505 zc->appliedParams = params;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1506 zc->blockState.matchState.cParams = params.cParams;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1507 zc->pledgedSrcSizePlusOne = pledgedSrcSize+1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1508 zc->consumedSrcSize = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1509 zc->producedCSize = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1510 if (pledgedSrcSize == ZSTD_CONTENTSIZE_UNKNOWN)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1511 zc->appliedParams.fParams.contentSizeFlag = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1512 DEBUGLOG(4, "pledged content size : %u ; flag : %u",
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1513 (unsigned)pledgedSrcSize, zc->appliedParams.fParams.contentSizeFlag);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1514 zc->blockSize = blockSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1515
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1516 XXH64_reset(&zc->xxhState, 0);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1517 zc->stage = ZSTDcs_init;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1518 zc->dictID = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1519
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1520 ZSTD_reset_compressedBlockState(zc->blockState.prevCBlock);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1521
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1522 ptr = ZSTD_reset_matchState(&zc->blockState.matchState,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1523 zc->entropyWorkspace + HUF_WORKSPACE_SIZE_U32,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1524 &params.cParams,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1525 crp, ZSTD_resetTarget_CCtx);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1526
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1527 /* ldm hash table */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1528 /* initialize bucketOffsets table later for pointer alignment */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1529 if (params.ldmParams.enableLdm) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1530 size_t const ldmHSize = ((size_t)1) << params.ldmParams.hashLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1531 memset(ptr, 0, ldmHSize * sizeof(ldmEntry_t));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1532 assert(((size_t)ptr & 3) == 0); /* ensure ptr is properly aligned */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1533 zc->ldmState.hashTable = (ldmEntry_t*)ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1534 ptr = zc->ldmState.hashTable + ldmHSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1535 zc->ldmSequences = (rawSeq*)ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1536 ptr = zc->ldmSequences + maxNbLdmSeq;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1537 zc->maxNbLdmSequences = maxNbLdmSeq;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1538
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1539 memset(&zc->ldmState.window, 0, sizeof(zc->ldmState.window));
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1540 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1541 assert(((size_t)ptr & 3) == 0); /* ensure ptr is properly aligned */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1542
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1543 /* sequences storage */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1544 zc->seqStore.maxNbSeq = maxNbSeq;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1545 zc->seqStore.sequencesStart = (seqDef*)ptr;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1546 ptr = zc->seqStore.sequencesStart + maxNbSeq;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1547 zc->seqStore.llCode = (BYTE*) ptr;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1548 zc->seqStore.mlCode = zc->seqStore.llCode + maxNbSeq;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1549 zc->seqStore.ofCode = zc->seqStore.mlCode + maxNbSeq;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1550 zc->seqStore.litStart = zc->seqStore.ofCode + maxNbSeq;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1551 /* ZSTD_wildcopy() is used to copy into the literals buffer,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1552 * so we have to oversize the buffer by WILDCOPY_OVERLENGTH bytes.
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1553 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1554 zc->seqStore.maxNbLit = blockSize;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1555 ptr = zc->seqStore.litStart + blockSize + WILDCOPY_OVERLENGTH;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1556
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1557 /* ldm bucketOffsets table */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1558 if (params.ldmParams.enableLdm) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1559 size_t const ldmBucketSize =
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1560 ((size_t)1) << (params.ldmParams.hashLog -
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1561 params.ldmParams.bucketSizeLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1562 memset(ptr, 0, ldmBucketSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1563 zc->ldmState.bucketOffsets = (BYTE*)ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1564 ptr = zc->ldmState.bucketOffsets + ldmBucketSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1565 ZSTD_window_clear(&zc->ldmState.window);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1566 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1567 ZSTD_referenceExternalSequences(zc, NULL, 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1568
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1569 /* buffers */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1570 zc->inBuffSize = buffInSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1571 zc->inBuff = (char*)ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1572 zc->outBuffSize = buffOutSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1573 zc->outBuff = zc->inBuff + buffInSize;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1574
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1575 return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1576 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1577 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1578
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	1579 /* ZSTD_invalidateRepCodes() :
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	1580 * ensures next compression will not use repcodes from previous block.
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	1581 * Note : only works with regular variant;
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	1582 * do not use with extDict variant ! */
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	1583 void ZSTD_invalidateRepCodes(ZSTD_CCtx* cctx) {
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	1584 int i;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1585 for (i=0; i<ZSTD_REP_NUM; i++) cctx->blockState.prevCBlock->rep[i] = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1586 assert(!ZSTD_window_hasExtDict(cctx->blockState.matchState.window));
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	1587 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1588
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1589 /* These are the approximate sizes for each strategy past which copying the
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1590 * dictionary tables into the working context is faster than using them
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1591 * in-place.
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1592 */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1593 static const size_t attachDictSizeCutoffs[ZSTD_STRATEGY_MAX+1] = {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1594 8 KB, /* unused */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1595 8 KB, /* ZSTD_fast */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1596 16 KB, /* ZSTD_dfast */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1597 32 KB, /* ZSTD_greedy */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1598 32 KB, /* ZSTD_lazy */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1599 32 KB, /* ZSTD_lazy2 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1600 32 KB, /* ZSTD_btlazy2 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1601 32 KB, /* ZSTD_btopt */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1602 8 KB, /* ZSTD_btultra */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1603 8 KB /* ZSTD_btultra2 */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1604 };
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1605
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1606 static int ZSTD_shouldAttachDict(const ZSTD_CDict* cdict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1607 ZSTD_CCtx_params params,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1608 U64 pledgedSrcSize)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1609 {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1610 size_t cutoff = attachDictSizeCutoffs[cdict->matchState.cParams.strategy];
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1611 return ( pledgedSrcSize <= cutoff
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1612 \|\| pledgedSrcSize == ZSTD_CONTENTSIZE_UNKNOWN
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1613 \|\| params.attachDictPref == ZSTD_dictForceAttach )
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1614 && params.attachDictPref != ZSTD_dictForceCopy
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1615 && !params.forceWindow; /* dictMatchState isn't correctly
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1616 * handled in _enforceMaxDist */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1617 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1618
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1619 static size_t
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1620 ZSTD_resetCCtx_byAttachingCDict(ZSTD_CCtx* cctx,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1621 const ZSTD_CDict* cdict,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1622 ZSTD_CCtx_params params,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1623 U64 pledgedSrcSize,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1624 ZSTD_buffered_policy_e zbuff)
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1625 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1626 { const ZSTD_compressionParameters* const cdict_cParams = &cdict->matchState.cParams;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1627 unsigned const windowLog = params.cParams.windowLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1628 assert(windowLog != 0);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1629 /* Resize working context table params for input only, since the dict
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1630 * has its own tables. */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1631 params.cParams = ZSTD_adjustCParams_internal(*cdict_cParams, pledgedSrcSize, 0);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1632 params.cParams.windowLog = windowLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1633 ZSTD_resetCCtx_internal(cctx, params, pledgedSrcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1634 ZSTDcrp_continue, zbuff);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1635 assert(cctx->appliedParams.cParams.strategy == cdict_cParams->strategy);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1636 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1637
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1638 { const U32 cdictEnd = (U32)( cdict->matchState.window.nextSrc
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1639 - cdict->matchState.window.base);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1640 const U32 cdictLen = cdictEnd - cdict->matchState.window.dictLimit;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1641 if (cdictLen == 0) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1642 /* don't even attach dictionaries with no contents */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1643 DEBUGLOG(4, "skipping attaching empty dictionary");
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1644 } else {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1645 DEBUGLOG(4, "attaching dictionary into context");
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1646 cctx->blockState.matchState.dictMatchState = &cdict->matchState;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1647
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1648 /* prep working match state so dict matches never have negative indices
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1649 * when they are translated to the working context's index space. */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1650 if (cctx->blockState.matchState.window.dictLimit < cdictEnd) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1651 cctx->blockState.matchState.window.nextSrc =
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1652 cctx->blockState.matchState.window.base + cdictEnd;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1653 ZSTD_window_clear(&cctx->blockState.matchState.window);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1654 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1655 /* loadedDictEnd is expressed within the referential of the active context */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1656 cctx->blockState.matchState.loadedDictEnd = cctx->blockState.matchState.window.dictLimit;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1657 } }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1658
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1659 cctx->dictID = cdict->dictID;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1660
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1661 /* copy block state */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1662 memcpy(cctx->blockState.prevCBlock, &cdict->cBlockState, sizeof(cdict->cBlockState));
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1663
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1664 return 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1665 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1666
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1667 static size_t ZSTD_resetCCtx_byCopyingCDict(ZSTD_CCtx* cctx,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1668 const ZSTD_CDict* cdict,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1669 ZSTD_CCtx_params params,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1670 U64 pledgedSrcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1671 ZSTD_buffered_policy_e zbuff)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1672 {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1673 const ZSTD_compressionParameters *cdict_cParams = &cdict->matchState.cParams;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1674
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1675 DEBUGLOG(4, "copying dictionary into context");
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1676
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1677 { unsigned const windowLog = params.cParams.windowLog;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1678 assert(windowLog != 0);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1679 /* Copy only compression parameters related to tables. */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1680 params.cParams = *cdict_cParams;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1681 params.cParams.windowLog = windowLog;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1682 ZSTD_resetCCtx_internal(cctx, params, pledgedSrcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1683 ZSTDcrp_noMemset, zbuff);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1684 assert(cctx->appliedParams.cParams.strategy == cdict_cParams->strategy);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1685 assert(cctx->appliedParams.cParams.hashLog == cdict_cParams->hashLog);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1686 assert(cctx->appliedParams.cParams.chainLog == cdict_cParams->chainLog);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1687 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1688
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1689 /* copy tables */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1690 { size_t const chainSize = (cdict_cParams->strategy == ZSTD_fast) ? 0 : ((size_t)1 << cdict_cParams->chainLog);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1691 size_t const hSize = (size_t)1 << cdict_cParams->hashLog;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1692 size_t const tableSpace = (chainSize + hSize) * sizeof(U32);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1693 assert((U32)cctx->blockState.matchState.chainTable == (U32)cctx->blockState.matchState.hashTable + hSize); /* chainTable must follow hashTable */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1694 assert((U32)cctx->blockState.matchState.hashTable3 == (U32)cctx->blockState.matchState.chainTable + chainSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1695 assert((U32)cdict->matchState.chainTable == (U32)cdict->matchState.hashTable + hSize); /* chainTable must follow hashTable */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1696 assert((U32)cdict->matchState.hashTable3 == (U32)cdict->matchState.chainTable + chainSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1697 memcpy(cctx->blockState.matchState.hashTable, cdict->matchState.hashTable, tableSpace); /* presumes all tables follow each other */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1698 }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1699
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1700 /* Zero the hashTable3, since the cdict never fills it */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1701 { size_t const h3Size = (size_t)1 << cctx->blockState.matchState.hashLog3;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1702 assert(cdict->matchState.hashLog3 == 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1703 memset(cctx->blockState.matchState.hashTable3, 0, h3Size * sizeof(U32));
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1704 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1705
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1706 /* copy dictionary offsets */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1707 { ZSTD_matchState_t const* srcMatchState = &cdict->matchState;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1708 ZSTD_matchState_t* dstMatchState = &cctx->blockState.matchState;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1709 dstMatchState->window = srcMatchState->window;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1710 dstMatchState->nextToUpdate = srcMatchState->nextToUpdate;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1711 dstMatchState->loadedDictEnd= srcMatchState->loadedDictEnd;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1712 }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1713
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1714 cctx->dictID = cdict->dictID;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1715
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1716 /* copy block state */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1717 memcpy(cctx->blockState.prevCBlock, &cdict->cBlockState, sizeof(cdict->cBlockState));
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1718
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1719 return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1720 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1721
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1722 /* We have a choice between copying the dictionary context into the working
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1723 * context, or referencing the dictionary context from the working context
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1724 * in-place. We decide here which strategy to use. */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1725 static size_t ZSTD_resetCCtx_usingCDict(ZSTD_CCtx* cctx,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1726 const ZSTD_CDict* cdict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1727 ZSTD_CCtx_params params,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1728 U64 pledgedSrcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1729 ZSTD_buffered_policy_e zbuff)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1730 {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1731
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1732 DEBUGLOG(4, "ZSTD_resetCCtx_usingCDict (pledgedSrcSize=%u)",
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1733 (unsigned)pledgedSrcSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1734
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1735 if (ZSTD_shouldAttachDict(cdict, params, pledgedSrcSize)) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1736 return ZSTD_resetCCtx_byAttachingCDict(
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1737 cctx, cdict, params, pledgedSrcSize, zbuff);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1738 } else {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1739 return ZSTD_resetCCtx_byCopyingCDict(
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1740 cctx, cdict, params, pledgedSrcSize, zbuff);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1741 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1742 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1743
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1744 /*! ZSTD_copyCCtx_internal() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1745 * Duplicate an existing context `srcCCtx` into another one `dstCCtx`.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1746 * Only works during stage ZSTDcs_init (i.e. after creation, but before first call to ZSTD_compressContinue()).
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1747 * The "context", in this case, refers to the hash and chain tables,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1748 * entropy tables, and dictionary references.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1749 * `windowLog` value is enforced if != 0, otherwise value is copied from srcCCtx.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1750 * @return : 0, or an error code */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1751 static size_t ZSTD_copyCCtx_internal(ZSTD_CCtx* dstCCtx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1752 const ZSTD_CCtx* srcCCtx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1753 ZSTD_frameParameters fParams,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1754 U64 pledgedSrcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1755 ZSTD_buffered_policy_e zbuff)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1756 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1757 DEBUGLOG(5, "ZSTD_copyCCtx_internal");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1758 RETURN_ERROR_IF(srcCCtx->stage!=ZSTDcs_init, stage_wrong);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1759
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1760 memcpy(&dstCCtx->customMem, &srcCCtx->customMem, sizeof(ZSTD_customMem));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1761 { ZSTD_CCtx_params params = dstCCtx->requestedParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1762 /* Copy only compression parameters related to tables. */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1763 params.cParams = srcCCtx->appliedParams.cParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1764 params.fParams = fParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1765 ZSTD_resetCCtx_internal(dstCCtx, params, pledgedSrcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1766 ZSTDcrp_noMemset, zbuff);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1767 assert(dstCCtx->appliedParams.cParams.windowLog == srcCCtx->appliedParams.cParams.windowLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1768 assert(dstCCtx->appliedParams.cParams.strategy == srcCCtx->appliedParams.cParams.strategy);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1769 assert(dstCCtx->appliedParams.cParams.hashLog == srcCCtx->appliedParams.cParams.hashLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1770 assert(dstCCtx->appliedParams.cParams.chainLog == srcCCtx->appliedParams.cParams.chainLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1771 assert(dstCCtx->blockState.matchState.hashLog3 == srcCCtx->blockState.matchState.hashLog3);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1772 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1773
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1774 /* copy tables */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1775 { size_t const chainSize = (srcCCtx->appliedParams.cParams.strategy == ZSTD_fast) ? 0 : ((size_t)1 << srcCCtx->appliedParams.cParams.chainLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1776 size_t const hSize = (size_t)1 << srcCCtx->appliedParams.cParams.hashLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1777 size_t const h3Size = (size_t)1 << srcCCtx->blockState.matchState.hashLog3;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1778 size_t const tableSpace = (chainSize + hSize + h3Size) * sizeof(U32);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1779 assert((U32)dstCCtx->blockState.matchState.chainTable == (U32)dstCCtx->blockState.matchState.hashTable + hSize); /* chainTable must follow hashTable */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1780 assert((U32)dstCCtx->blockState.matchState.hashTable3 == (U32)dstCCtx->blockState.matchState.chainTable + chainSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1781 memcpy(dstCCtx->blockState.matchState.hashTable, srcCCtx->blockState.matchState.hashTable, tableSpace); /* presumes all tables follow each other */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1782 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1783
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1784 /* copy dictionary offsets */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1785 {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1786 const ZSTD_matchState_t* srcMatchState = &srcCCtx->blockState.matchState;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1787 ZSTD_matchState_t* dstMatchState = &dstCCtx->blockState.matchState;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1788 dstMatchState->window = srcMatchState->window;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1789 dstMatchState->nextToUpdate = srcMatchState->nextToUpdate;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1790 dstMatchState->loadedDictEnd= srcMatchState->loadedDictEnd;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1791 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1792 dstCCtx->dictID = srcCCtx->dictID;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1793
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1794 /* copy block state */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1795 memcpy(dstCCtx->blockState.prevCBlock, srcCCtx->blockState.prevCBlock, sizeof(*srcCCtx->blockState.prevCBlock));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1796
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1797 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1798 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1799
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1800 /*! ZSTD_copyCCtx() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1801 * Duplicate an existing context `srcCCtx` into another one `dstCCtx`.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1802 * Only works during stage ZSTDcs_init (i.e. after creation, but before first call to ZSTD_compressContinue()).
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1803 * pledgedSrcSize==0 means "unknown".
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1804 * @return : 0, or an error code */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1805 size_t ZSTD_copyCCtx(ZSTD_CCtx* dstCCtx, const ZSTD_CCtx* srcCCtx, unsigned long long pledgedSrcSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1806 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1807 ZSTD_frameParameters fParams = { 1 /content/, 0 /checksum/, 0 /noDictID/ };
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1808 ZSTD_buffered_policy_e const zbuff = (ZSTD_buffered_policy_e)(srcCCtx->inBuffSize>0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1809 ZSTD_STATIC_ASSERT((U32)ZSTDb_buffered==1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1810 if (pledgedSrcSize==0) pledgedSrcSize = ZSTD_CONTENTSIZE_UNKNOWN;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1811 fParams.contentSizeFlag = (pledgedSrcSize != ZSTD_CONTENTSIZE_UNKNOWN);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1812
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1813 return ZSTD_copyCCtx_internal(dstCCtx, srcCCtx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1814 fParams, pledgedSrcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1815 zbuff);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1816 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1817
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1818
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1819 #define ZSTD_ROWSIZE 16
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1820 /*! ZSTD_reduceTable() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1821 * reduce table indexes by `reducerValue`, or squash to zero.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1822 * PreserveMark preserves "unsorted mark" for btlazy2 strategy.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1823 * It must be set to a clear 0/1 value, to remove branch during inlining.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1824 * Presume table size is a multiple of ZSTD_ROWSIZE
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1825 * to help auto-vectorization */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1826 FORCE_INLINE_TEMPLATE void
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1827 ZSTD_reduceTable_internal (U32* const table, U32 const size, U32 const reducerValue, int const preserveMark)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1828 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1829 int const nbRows = (int)size / ZSTD_ROWSIZE;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1830 int cellNb = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1831 int rowNb;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1832 assert((size & (ZSTD_ROWSIZE-1)) == 0); /* multiple of ZSTD_ROWSIZE */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1833 assert(size < (1U<<31)); /* can be casted to int */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1834 for (rowNb=0 ; rowNb < nbRows ; rowNb++) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1835 int column;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1836 for (column=0; column<ZSTD_ROWSIZE; column++) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1837 if (preserveMark) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1838 U32 const adder = (table[cellNb] == ZSTD_DUBT_UNSORTED_MARK) ? reducerValue : 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1839 table[cellNb] += adder;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1840 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1841 if (table[cellNb] < reducerValue) table[cellNb] = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1842 else table[cellNb] -= reducerValue;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1843 cellNb++;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1844 } }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1845 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1846
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1847 static void ZSTD_reduceTable(U32* const table, U32 const size, U32 const reducerValue)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1848 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1849 ZSTD_reduceTable_internal(table, size, reducerValue, 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1850 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1851
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1852 static void ZSTD_reduceTable_btlazy2(U32* const table, U32 const size, U32 const reducerValue)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1853 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1854 ZSTD_reduceTable_internal(table, size, reducerValue, 1);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1855 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1856
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1857 /*! ZSTD_reduceIndex() :
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1858 * rescale all indexes to avoid future overflow (indexes are U32) */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1859 static void ZSTD_reduceIndex (ZSTD_matchState_t* ms, ZSTD_CCtx_params const* params, const U32 reducerValue)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1860 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1861 { U32 const hSize = (U32)1 << params->cParams.hashLog;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1862 ZSTD_reduceTable(ms->hashTable, hSize, reducerValue);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1863 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1864
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1865 if (params->cParams.strategy != ZSTD_fast) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1866 U32 const chainSize = (U32)1 << params->cParams.chainLog;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1867 if (params->cParams.strategy == ZSTD_btlazy2)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1868 ZSTD_reduceTable_btlazy2(ms->chainTable, chainSize, reducerValue);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1869 else
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1870 ZSTD_reduceTable(ms->chainTable, chainSize, reducerValue);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1871 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1872
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1873 if (ms->hashLog3) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1874 U32 const h3Size = (U32)1 << ms->hashLog3;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1875 ZSTD_reduceTable(ms->hashTable3, h3Size, reducerValue);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1876 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1877 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1878
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1879
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1880 /-******************************************************
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1881 * Block entropic compression
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1882 *********************************************************/
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1883
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1884 /* See doc/zstd_compression_format.md for detailed format description */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1885
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1886 static size_t ZSTD_noCompressBlock (void* dst, size_t dstCapacity, const void* src, size_t srcSize, U32 lastBlock)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1887 {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1888 U32 const cBlockHeader24 = lastBlock + (((U32)bt_raw)<<1) + (U32)(srcSize << 3);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1889 RETURN_ERROR_IF(srcSize + ZSTD_blockHeaderSize > dstCapacity,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1890 dstSize_tooSmall);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1891 MEM_writeLE24(dst, cBlockHeader24);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1892 memcpy((BYTE*)dst + ZSTD_blockHeaderSize, src, srcSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1893 return ZSTD_blockHeaderSize + srcSize;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1894 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1895
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1896 void ZSTD_seqToCodes(const seqStore_t* seqStorePtr)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1897 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1898 const seqDef* const sequences = seqStorePtr->sequencesStart;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1899 BYTE* const llCodeTable = seqStorePtr->llCode;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1900 BYTE* const ofCodeTable = seqStorePtr->ofCode;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1901 BYTE* const mlCodeTable = seqStorePtr->mlCode;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1902 U32 const nbSeq = (U32)(seqStorePtr->sequences - seqStorePtr->sequencesStart);
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1903 U32 u;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1904 assert(nbSeq <= seqStorePtr->maxNbSeq);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1905 for (u=0; u<nbSeq; u++) {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1906 U32 const llv = sequences[u].litLength;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1907 U32 const mlv = sequences[u].matchLength;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1908 llCodeTable[u] = (BYTE)ZSTD_LLcode(llv);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1909 ofCodeTable[u] = (BYTE)ZSTD_highbit32(sequences[u].offset);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1910 mlCodeTable[u] = (BYTE)ZSTD_MLcode(mlv);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1911 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1912 if (seqStorePtr->longLengthID==1)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1913 llCodeTable[seqStorePtr->longLengthPos] = MaxLL;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1914 if (seqStorePtr->longLengthID==2)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1915 mlCodeTable[seqStorePtr->longLengthPos] = MaxML;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1916 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1917
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1918 static int ZSTD_disableLiteralsCompression(const ZSTD_CCtx_params* cctxParams)
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1919 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1920 switch (cctxParams->literalCompressionMode) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1921 case ZSTD_lcm_huffman:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1922 return 0;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1923 case ZSTD_lcm_uncompressed:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1924 return 1;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1925 default:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1926 assert(0 /* impossible: pre-validated */);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1927 /* fall-through */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1928 case ZSTD_lcm_auto:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1929 return (cctxParams->cParams.strategy == ZSTD_fast) && (cctxParams->cParams.targetLength > 0);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1930 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1931 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1932
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1933 /* ZSTD_compressSequences_internal():
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1934 * actually compresses both literals and sequences */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1935 MEM_STATIC size_t
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1936 ZSTD_compressSequences_internal(seqStore_t* seqStorePtr,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1937 const ZSTD_entropyCTables_t* prevEntropy,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1938 ZSTD_entropyCTables_t* nextEntropy,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1939 const ZSTD_CCtx_params* cctxParams,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1940 void* dst, size_t dstCapacity,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1941 void* workspace, size_t wkspSize,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1942 const int bmi2)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1943 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1944 const int longOffsets = cctxParams->cParams.windowLog > STREAM_ACCUMULATOR_MIN;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1945 ZSTD_strategy const strategy = cctxParams->cParams.strategy;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1946 unsigned count[MaxSeq+1];
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1947 FSE_CTable* CTable_LitLength = nextEntropy->fse.litlengthCTable;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1948 FSE_CTable* CTable_OffsetBits = nextEntropy->fse.offcodeCTable;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1949 FSE_CTable* CTable_MatchLength = nextEntropy->fse.matchlengthCTable;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1950 U32 LLtype, Offtype, MLtype; /* compressed, raw or rle */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1951 const seqDef* const sequences = seqStorePtr->sequencesStart;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1952 const BYTE* const ofCodeTable = seqStorePtr->ofCode;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1953 const BYTE* const llCodeTable = seqStorePtr->llCode;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1954 const BYTE* const mlCodeTable = seqStorePtr->mlCode;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1955 BYTE* const ostart = (BYTE*)dst;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1956 BYTE* const oend = ostart + dstCapacity;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1957 BYTE* op = ostart;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1958 size_t const nbSeq = (size_t)(seqStorePtr->sequences - seqStorePtr->sequencesStart);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1959 BYTE* seqHead;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1960 BYTE* lastNCount = NULL;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1961
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1962 DEBUGLOG(5, "ZSTD_compressSequences_internal (nbSeq=%zu)", nbSeq);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1963 ZSTD_STATIC_ASSERT(HUF_WORKSPACE_SIZE >= (1<<MAX(MLFSELog,LLFSELog)));
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1964
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1965 /* Compress literals */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1966 { const BYTE* const literals = seqStorePtr->litStart;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1967 size_t const litSize = (size_t)(seqStorePtr->lit - literals);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1968 size_t const cSize = ZSTD_compressLiterals(
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1969 &prevEntropy->huf, &nextEntropy->huf,
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1970 cctxParams->cParams.strategy,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1971 ZSTD_disableLiteralsCompression(cctxParams),
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1972 op, dstCapacity,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1973 literals, litSize,
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1974 workspace, wkspSize,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	1975 bmi2);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1976 FORWARD_IF_ERROR(cSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1977 assert(cSize <= dstCapacity);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1978 op += cSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1979 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1980
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1981 /* Sequences Header */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1982 RETURN_ERROR_IF((oend-op) < 3 /max nbSeq Size/ + 1 /seqHead/,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1983 dstSize_tooSmall);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1984 if (nbSeq < 0x7F)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1985 *op++ = (BYTE)nbSeq;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1986 else if (nbSeq < LONGNBSEQ)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1987 op[0] = (BYTE)((nbSeq>>8) + 0x80), op[1] = (BYTE)nbSeq, op+=2;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1988 else
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1989 op[0]=0xFF, MEM_writeLE16(op+1, (U16)(nbSeq - LONGNBSEQ)), op+=3;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1990 assert(op <= oend);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1991 if (nbSeq==0) {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1992 /* Copy the old tables over as if we repeated them */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	1993 memcpy(&nextEntropy->fse, &prevEntropy->fse, sizeof(prevEntropy->fse));
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1994 return (size_t)(op - ostart);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	1995 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1996
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1997 /* seqHead : flags for FSE encoding type */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	1998 seqHead = op++;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	1999 assert(op <= oend);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2000
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2001 /* convert length/distances into codes */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2002 ZSTD_seqToCodes(seqStorePtr);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2003 /* build CTable for Literal Lengths */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2004 { unsigned max = MaxLL;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2005 size_t const mostFrequent = HIST_countFast_wksp(count, &max, llCodeTable, nbSeq, workspace, wkspSize); /* can't fail */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2006 DEBUGLOG(5, "Building LL table");
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2007 nextEntropy->fse.litlength_repeatMode = prevEntropy->fse.litlength_repeatMode;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2008 LLtype = ZSTD_selectEncodingType(&nextEntropy->fse.litlength_repeatMode,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2009 count, max, mostFrequent, nbSeq,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2010 LLFSELog, prevEntropy->fse.litlengthCTable,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2011 LL_defaultNorm, LL_defaultNormLog,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2012 ZSTD_defaultAllowed, strategy);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2013 assert(set_basic < set_compressed && set_rle < set_compressed);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2014 assert(!(LLtype < set_compressed && nextEntropy->fse.litlength_repeatMode != FSE_repeat_none)); /* We don't copy tables */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2015 { size_t const countSize = ZSTD_buildCTable(op, (size_t)(oend - op), CTable_LitLength, LLFSELog, (symbolEncodingType_e)LLtype,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2016 count, max, llCodeTable, nbSeq, LL_defaultNorm, LL_defaultNormLog, MaxLL,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2017 prevEntropy->fse.litlengthCTable, sizeof(prevEntropy->fse.litlengthCTable),
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2018 workspace, wkspSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2019 FORWARD_IF_ERROR(countSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2020 if (LLtype == set_compressed)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2021 lastNCount = op;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2022 op += countSize;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2023 assert(op <= oend);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2024 } }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2025 /* build CTable for Offsets */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2026 { unsigned max = MaxOff;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2027 size_t const mostFrequent = HIST_countFast_wksp(count, &max, ofCodeTable, nbSeq, workspace, wkspSize); /* can't fail */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2028 /* We can only use the basic table if max <= DefaultMaxOff, otherwise the offsets are too large */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2029 ZSTD_defaultPolicy_e const defaultPolicy = (max <= DefaultMaxOff) ? ZSTD_defaultAllowed : ZSTD_defaultDisallowed;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2030 DEBUGLOG(5, "Building OF table");
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2031 nextEntropy->fse.offcode_repeatMode = prevEntropy->fse.offcode_repeatMode;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2032 Offtype = ZSTD_selectEncodingType(&nextEntropy->fse.offcode_repeatMode,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2033 count, max, mostFrequent, nbSeq,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2034 OffFSELog, prevEntropy->fse.offcodeCTable,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2035 OF_defaultNorm, OF_defaultNormLog,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2036 defaultPolicy, strategy);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2037 assert(!(Offtype < set_compressed && nextEntropy->fse.offcode_repeatMode != FSE_repeat_none)); /* We don't copy tables */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2038 { size_t const countSize = ZSTD_buildCTable(op, (size_t)(oend - op), CTable_OffsetBits, OffFSELog, (symbolEncodingType_e)Offtype,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2039 count, max, ofCodeTable, nbSeq, OF_defaultNorm, OF_defaultNormLog, DefaultMaxOff,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2040 prevEntropy->fse.offcodeCTable, sizeof(prevEntropy->fse.offcodeCTable),
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2041 workspace, wkspSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2042 FORWARD_IF_ERROR(countSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2043 if (Offtype == set_compressed)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2044 lastNCount = op;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2045 op += countSize;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2046 assert(op <= oend);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2047 } }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2048 /* build CTable for MatchLengths */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2049 { unsigned max = MaxML;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2050 size_t const mostFrequent = HIST_countFast_wksp(count, &max, mlCodeTable, nbSeq, workspace, wkspSize); /* can't fail */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2051 DEBUGLOG(5, "Building ML table (remaining space : %i)", (int)(oend-op));
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2052 nextEntropy->fse.matchlength_repeatMode = prevEntropy->fse.matchlength_repeatMode;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2053 MLtype = ZSTD_selectEncodingType(&nextEntropy->fse.matchlength_repeatMode,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2054 count, max, mostFrequent, nbSeq,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2055 MLFSELog, prevEntropy->fse.matchlengthCTable,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2056 ML_defaultNorm, ML_defaultNormLog,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2057 ZSTD_defaultAllowed, strategy);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2058 assert(!(MLtype < set_compressed && nextEntropy->fse.matchlength_repeatMode != FSE_repeat_none)); /* We don't copy tables */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2059 { size_t const countSize = ZSTD_buildCTable(op, (size_t)(oend - op), CTable_MatchLength, MLFSELog, (symbolEncodingType_e)MLtype,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2060 count, max, mlCodeTable, nbSeq, ML_defaultNorm, ML_defaultNormLog, MaxML,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2061 prevEntropy->fse.matchlengthCTable, sizeof(prevEntropy->fse.matchlengthCTable),
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2062 workspace, wkspSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2063 FORWARD_IF_ERROR(countSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2064 if (MLtype == set_compressed)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2065 lastNCount = op;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2066 op += countSize;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2067 assert(op <= oend);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2068 } }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2069
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2070 *seqHead = (BYTE)((LLtype<<6) + (Offtype<<4) + (MLtype<<2));
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2071
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2072 { size_t const bitstreamSize = ZSTD_encodeSequences(
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2073 op, (size_t)(oend - op),
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2074 CTable_MatchLength, mlCodeTable,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2075 CTable_OffsetBits, ofCodeTable,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2076 CTable_LitLength, llCodeTable,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2077 sequences, nbSeq,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2078 longOffsets, bmi2);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2079 FORWARD_IF_ERROR(bitstreamSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2080 op += bitstreamSize;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2081 assert(op <= oend);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2082 /* zstd versions <= 1.3.4 mistakenly report corruption when
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2083 * FSE_readNCount() receives a buffer < 4 bytes.
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2084 * Fixed by https://github.com/facebook/zstd/pull/1146.
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2085 * This can happen when the last set_compressed table present is 2
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2086 * bytes and the bitstream is only one byte.
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2087 * In this exceedingly rare case, we will simply emit an uncompressed
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2088 * block, since it isn't worth optimizing.
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2089 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2090 if (lastNCount && (op - lastNCount) < 4) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2091 /* NCountSize >= 2 && bitstreamSize > 0 ==> lastCountSize == 3 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2092 assert(op - lastNCount == 3);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2093 DEBUGLOG(5, "Avoiding bug in zstd decoder in versions <= 1.3.4 by "
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2094 "emitting an uncompressed block.");
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2095 return 0;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2096 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2097 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2098
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2099 DEBUGLOG(5, "compressed block size : %u", (unsigned)(op - ostart));
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2100 return (size_t)(op - ostart);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2101 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2102
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2103 MEM_STATIC size_t
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2104 ZSTD_compressSequences(seqStore_t* seqStorePtr,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2105 const ZSTD_entropyCTables_t* prevEntropy,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2106 ZSTD_entropyCTables_t* nextEntropy,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2107 const ZSTD_CCtx_params* cctxParams,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2108 void* dst, size_t dstCapacity,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2109 size_t srcSize,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2110 void* workspace, size_t wkspSize,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2111 int bmi2)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2112 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2113 size_t const cSize = ZSTD_compressSequences_internal(
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2114 seqStorePtr, prevEntropy, nextEntropy, cctxParams,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2115 dst, dstCapacity,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2116 workspace, wkspSize, bmi2);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2117 if (cSize == 0) return 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2118 /* When srcSize <= dstCapacity, there is enough space to write a raw uncompressed block.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2119 * Since we ran out of space, block must be not compressible, so fall back to raw uncompressed block.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2120 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2121 if ((cSize == ERROR(dstSize_tooSmall)) & (srcSize <= dstCapacity))
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2122 return 0; /* block not compressed */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2123 FORWARD_IF_ERROR(cSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2124
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2125 /* Check compressibility */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2126 { size_t const maxCSize = srcSize - ZSTD_minGain(srcSize, cctxParams->cParams.strategy);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2127 if (cSize >= maxCSize) return 0; /* block not compressed */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2128 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2129
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2130 return cSize;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2131 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2132
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2133 /* ZSTD_selectBlockCompressor() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2134 * Not static, but internal use only (used by long distance matcher)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2135 * assumption : strat is a valid strategy */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2136 ZSTD_blockCompressor ZSTD_selectBlockCompressor(ZSTD_strategy strat, ZSTD_dictMode_e dictMode)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2137 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2138 static const ZSTD_blockCompressor blockCompressor[3][ZSTD_STRATEGY_MAX+1] = {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2139 { ZSTD_compressBlock_fast /* default for 0 */,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2140 ZSTD_compressBlock_fast,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2141 ZSTD_compressBlock_doubleFast,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2142 ZSTD_compressBlock_greedy,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2143 ZSTD_compressBlock_lazy,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2144 ZSTD_compressBlock_lazy2,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2145 ZSTD_compressBlock_btlazy2,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2146 ZSTD_compressBlock_btopt,
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2147 ZSTD_compressBlock_btultra,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2148 ZSTD_compressBlock_btultra2 },
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2149 { ZSTD_compressBlock_fast_extDict /* default for 0 */,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2150 ZSTD_compressBlock_fast_extDict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2151 ZSTD_compressBlock_doubleFast_extDict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2152 ZSTD_compressBlock_greedy_extDict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2153 ZSTD_compressBlock_lazy_extDict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2154 ZSTD_compressBlock_lazy2_extDict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2155 ZSTD_compressBlock_btlazy2_extDict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2156 ZSTD_compressBlock_btopt_extDict,
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2157 ZSTD_compressBlock_btultra_extDict,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2158 ZSTD_compressBlock_btultra_extDict },
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2159 { ZSTD_compressBlock_fast_dictMatchState /* default for 0 */,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2160 ZSTD_compressBlock_fast_dictMatchState,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2161 ZSTD_compressBlock_doubleFast_dictMatchState,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2162 ZSTD_compressBlock_greedy_dictMatchState,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2163 ZSTD_compressBlock_lazy_dictMatchState,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2164 ZSTD_compressBlock_lazy2_dictMatchState,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2165 ZSTD_compressBlock_btlazy2_dictMatchState,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2166 ZSTD_compressBlock_btopt_dictMatchState,
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2167 ZSTD_compressBlock_btultra_dictMatchState,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2168 ZSTD_compressBlock_btultra_dictMatchState }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2169 };
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2170 ZSTD_blockCompressor selectedCompressor;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2171 ZSTD_STATIC_ASSERT((unsigned)ZSTD_fast == 1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2172
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2173 assert(ZSTD_cParam_withinBounds(ZSTD_c_strategy, strat));
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2174 selectedCompressor = blockCompressor[(int)dictMode][(int)strat];
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2175 assert(selectedCompressor != NULL);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2176 return selectedCompressor;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2177 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2178
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2179 static void ZSTD_storeLastLiterals(seqStore_t* seqStorePtr,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2180 const BYTE* anchor, size_t lastLLSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2181 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2182 memcpy(seqStorePtr->lit, anchor, lastLLSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2183 seqStorePtr->lit += lastLLSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2184 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2185
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2186 void ZSTD_resetSeqStore(seqStore_t* ssPtr)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2187 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2188 ssPtr->lit = ssPtr->litStart;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2189 ssPtr->sequences = ssPtr->sequencesStart;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2190 ssPtr->longLengthID = 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2191 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2192
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2193 typedef enum { ZSTDbss_compress, ZSTDbss_noCompress } ZSTD_buildSeqStore_e;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2194
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2195 static size_t ZSTD_buildSeqStore(ZSTD_CCtx* zc, const void* src, size_t srcSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2196 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2197 ZSTD_matchState_t* const ms = &zc->blockState.matchState;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2198 DEBUGLOG(5, "ZSTD_buildSeqStore (srcSize=%zu)", srcSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2199 assert(srcSize <= ZSTD_BLOCKSIZE_MAX);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2200 /* Assert that we have correctly flushed the ctx params into the ms's copy */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2201 ZSTD_assertEqualCParams(zc->appliedParams.cParams, ms->cParams);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2202 if (srcSize < MIN_CBLOCK_SIZE+ZSTD_blockHeaderSize+1) {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2203 ZSTD_ldm_skipSequences(&zc->externSeqStore, srcSize, zc->appliedParams.cParams.minMatch);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2204 return ZSTDbss_noCompress; /* don't even attempt compression below a certain srcSize */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2205 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2206 ZSTD_resetSeqStore(&(zc->seqStore));
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2207 /* required for optimal parser to read stats from dictionary */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2208 ms->opt.symbolCosts = &zc->blockState.prevCBlock->entropy;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2209 /* tell the optimal parser how we expect to compress literals */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2210 ms->opt.literalCompressionMode = zc->appliedParams.literalCompressionMode;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2211 /* a gap between an attached dict and the current window is not safe,
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2212 * they must remain adjacent,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2213 * and when that stops being the case, the dict must be unset */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2214 assert(ms->dictMatchState == NULL \|\| ms->loadedDictEnd == ms->window.dictLimit);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2215
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2216 /* limited update after a very long match */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2217 { const BYTE* const base = ms->window.base;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2218 const BYTE* const istart = (const BYTE*)src;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2219 const U32 current = (U32)(istart-base);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2220 if (sizeof(ptrdiff_t)==8) assert(istart - base < (ptrdiff_t)(U32)(-1)); /* ensure no overflow */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2221 if (current > ms->nextToUpdate + 384)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2222 ms->nextToUpdate = current - MIN(192, (U32)(current - ms->nextToUpdate - 384));
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2223 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2224
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2225 /* select and store sequences */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2226 { ZSTD_dictMode_e const dictMode = ZSTD_matchState_dictMode(ms);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2227 size_t lastLLSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2228 { int i;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2229 for (i = 0; i < ZSTD_REP_NUM; ++i)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2230 zc->blockState.nextCBlock->rep[i] = zc->blockState.prevCBlock->rep[i];
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2231 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2232 if (zc->externSeqStore.pos < zc->externSeqStore.size) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2233 assert(!zc->appliedParams.ldmParams.enableLdm);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2234 /* Updates ldmSeqStore.pos */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2235 lastLLSize =
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2236 ZSTD_ldm_blockCompress(&zc->externSeqStore,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2237 ms, &zc->seqStore,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2238 zc->blockState.nextCBlock->rep,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2239 src, srcSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2240 assert(zc->externSeqStore.pos <= zc->externSeqStore.size);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2241 } else if (zc->appliedParams.ldmParams.enableLdm) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2242 rawSeqStore_t ldmSeqStore = {NULL, 0, 0, 0};
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2243
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2244 ldmSeqStore.seq = zc->ldmSequences;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2245 ldmSeqStore.capacity = zc->maxNbLdmSequences;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2246 /* Updates ldmSeqStore.size */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2247 FORWARD_IF_ERROR(ZSTD_ldm_generateSequences(&zc->ldmState, &ldmSeqStore,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2248 &zc->appliedParams.ldmParams,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2249 src, srcSize));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2250 /* Updates ldmSeqStore.pos */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2251 lastLLSize =
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2252 ZSTD_ldm_blockCompress(&ldmSeqStore,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2253 ms, &zc->seqStore,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2254 zc->blockState.nextCBlock->rep,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2255 src, srcSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2256 assert(ldmSeqStore.pos == ldmSeqStore.size);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2257 } else { /* not long range mode */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2258 ZSTD_blockCompressor const blockCompressor = ZSTD_selectBlockCompressor(zc->appliedParams.cParams.strategy, dictMode);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2259 lastLLSize = blockCompressor(ms, &zc->seqStore, zc->blockState.nextCBlock->rep, src, srcSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2260 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2261 { const BYTE* const lastLiterals = (const BYTE*)src + srcSize - lastLLSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2262 ZSTD_storeLastLiterals(&zc->seqStore, lastLiterals, lastLLSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2263 } }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2264 return ZSTDbss_compress;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2265 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2266
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2267 static size_t ZSTD_compressBlock_internal(ZSTD_CCtx* zc,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2268 void* dst, size_t dstCapacity,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2269 const void* src, size_t srcSize)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2270 {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2271 size_t cSize;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2272 DEBUGLOG(5, "ZSTD_compressBlock_internal (dstCapacity=%u, dictLimit=%u, nextToUpdate=%u)",
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2273 (unsigned)dstCapacity, (unsigned)zc->blockState.matchState.window.dictLimit,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2274 (unsigned)zc->blockState.matchState.nextToUpdate);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2275
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2276 { const size_t bss = ZSTD_buildSeqStore(zc, src, srcSize);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2277 FORWARD_IF_ERROR(bss);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2278 if (bss == ZSTDbss_noCompress) { cSize = 0; goto out; }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2279 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2280
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2281 /* encode sequences and literals */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2282 cSize = ZSTD_compressSequences(&zc->seqStore,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2283 &zc->blockState.prevCBlock->entropy, &zc->blockState.nextCBlock->entropy,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2284 &zc->appliedParams,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2285 dst, dstCapacity,
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2286 srcSize,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2287 zc->entropyWorkspace, HUF_WORKSPACE_SIZE /* statically allocated in resetCCtx */,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2288 zc->bmi2);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2289
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2290 out:
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2291 if (!ZSTD_isError(cSize) && cSize != 0) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2292 /* confirm repcodes and entropy tables when emitting a compressed block */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2293 ZSTD_compressedBlockState_t* const tmp = zc->blockState.prevCBlock;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2294 zc->blockState.prevCBlock = zc->blockState.nextCBlock;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2295 zc->blockState.nextCBlock = tmp;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2296 }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2297 /* We check that dictionaries have offset codes available for the first
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2298 * block. After the first block, the offcode table might not have large
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2299 * enough codes to represent the offsets in the data.
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2300 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2301 if (zc->blockState.prevCBlock->entropy.fse.offcode_repeatMode == FSE_repeat_valid)
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2302 zc->blockState.prevCBlock->entropy.fse.offcode_repeatMode = FSE_repeat_check;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2303
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2304 return cSize;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2305 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2306
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2307
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2308 static void ZSTD_overflowCorrectIfNeeded(ZSTD_matchState_t* ms, ZSTD_CCtx_params const* params, void const* ip, void const* iend)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2309 {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2310 if (ZSTD_window_needOverflowCorrection(ms->window, iend)) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2311 U32 const maxDist = (U32)1 << params->cParams.windowLog;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2312 U32 const cycleLog = ZSTD_cycleLog(params->cParams.chainLog, params->cParams.strategy);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2313 U32 const correction = ZSTD_window_correctOverflow(&ms->window, cycleLog, maxDist, ip);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2314 ZSTD_STATIC_ASSERT(ZSTD_CHAINLOG_MAX <= 30);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2315 ZSTD_STATIC_ASSERT(ZSTD_WINDOWLOG_MAX_32 <= 30);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2316 ZSTD_STATIC_ASSERT(ZSTD_WINDOWLOG_MAX <= 31);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2317 ZSTD_reduceIndex(ms, params, correction);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2318 if (ms->nextToUpdate < correction) ms->nextToUpdate = 0;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2319 else ms->nextToUpdate -= correction;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2320 /* invalidate dictionaries on overflow correction */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2321 ms->loadedDictEnd = 0;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2322 ms->dictMatchState = NULL;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2323 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2324 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2325
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2326
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2327 /*! ZSTD_compress_frameChunk() :
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2328 * Compress a chunk of data into one or multiple blocks.
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2329 * All blocks will be terminated, all input will be consumed.
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2330 * Function will issue an error if there is not enough `dstCapacity` to hold the compressed content.
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2331 * Frame is supposed already started (header already produced)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2332 * @return : compressed size, or an error code
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2333 */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2334 static size_t ZSTD_compress_frameChunk (ZSTD_CCtx* cctx,
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2335 void* dst, size_t dstCapacity,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2336 const void* src, size_t srcSize,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2337 U32 lastFrameChunk)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2338 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2339 size_t blockSize = cctx->blockSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2340 size_t remaining = srcSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2341 const BYTE* ip = (const BYTE*)src;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2342 BYTE* const ostart = (BYTE*)dst;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2343 BYTE* op = ostart;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2344 U32 const maxDist = (U32)1 << cctx->appliedParams.cParams.windowLog;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2345 assert(cctx->appliedParams.cParams.windowLog <= ZSTD_WINDOWLOG_MAX);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2346
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2347 DEBUGLOG(5, "ZSTD_compress_frameChunk (blockSize=%u)", (unsigned)blockSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2348 if (cctx->appliedParams.fParams.checksumFlag && srcSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2349 XXH64_update(&cctx->xxhState, src, srcSize);
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2350
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2351 while (remaining) {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2352 ZSTD_matchState_t* const ms = &cctx->blockState.matchState;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2353 U32 const lastBlock = lastFrameChunk & (blockSize >= remaining);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2354
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2355 RETURN_ERROR_IF(dstCapacity < ZSTD_blockHeaderSize + MIN_CBLOCK_SIZE,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2356 dstSize_tooSmall,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2357 "not enough space to store compressed block");
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2358 if (remaining < blockSize) blockSize = remaining;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2359
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2360 ZSTD_overflowCorrectIfNeeded(ms, &cctx->appliedParams, ip, ip + blockSize);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2361 ZSTD_checkDictValidity(&ms->window, ip + blockSize, maxDist, &ms->loadedDictEnd, &ms->dictMatchState);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2362
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2363 /* Ensure hash/chain table insertion resumes no sooner than lowlimit */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2364 if (ms->nextToUpdate < ms->window.lowLimit) ms->nextToUpdate = ms->window.lowLimit;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2365
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2366 { size_t cSize = ZSTD_compressBlock_internal(cctx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2367 op+ZSTD_blockHeaderSize, dstCapacity-ZSTD_blockHeaderSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2368 ip, blockSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2369 FORWARD_IF_ERROR(cSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2370
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2371 if (cSize == 0) { /* block is not compressible */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2372 cSize = ZSTD_noCompressBlock(op, dstCapacity, ip, blockSize, lastBlock);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2373 FORWARD_IF_ERROR(cSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2374 } else {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2375 U32 const cBlockHeader24 = lastBlock + (((U32)bt_compressed)<<1) + (U32)(cSize << 3);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2376 MEM_writeLE24(op, cBlockHeader24);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2377 cSize += ZSTD_blockHeaderSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2378 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2379
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2380 ip += blockSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2381 assert(remaining >= blockSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2382 remaining -= blockSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2383 op += cSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2384 assert(dstCapacity >= cSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2385 dstCapacity -= cSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2386 DEBUGLOG(5, "ZSTD_compress_frameChunk: adding a block of size %u",
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2387 (unsigned)cSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2388 } }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2389
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2390 if (lastFrameChunk && (op>ostart)) cctx->stage = ZSTDcs_ending;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2391 return (size_t)(op-ostart);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2392 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2393
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2394
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2395 static size_t ZSTD_writeFrameHeader(void* dst, size_t dstCapacity,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2396 ZSTD_CCtx_params params, U64 pledgedSrcSize, U32 dictID)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2397 { BYTE* const op = (BYTE*)dst;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2398 U32 const dictIDSizeCodeLength = (dictID>0) + (dictID>=256) + (dictID>=65536); /* 0-3 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2399 U32 const dictIDSizeCode = params.fParams.noDictIDFlag ? 0 : dictIDSizeCodeLength; /* 0-3 */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2400 U32 const checksumFlag = params.fParams.checksumFlag>0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2401 U32 const windowSize = (U32)1 << params.cParams.windowLog;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2402 U32 const singleSegment = params.fParams.contentSizeFlag && (windowSize >= pledgedSrcSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2403 BYTE const windowLogByte = (BYTE)((params.cParams.windowLog - ZSTD_WINDOWLOG_ABSOLUTEMIN) << 3);
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2404 U32 const fcsCode = params.fParams.contentSizeFlag ?
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2405 (pledgedSrcSize>=256) + (pledgedSrcSize>=65536+256) + (pledgedSrcSize>=0xFFFFFFFFU) : 0; /* 0-3 */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2406 BYTE const frameHeaderDescriptionByte = (BYTE)(dictIDSizeCode + (checksumFlag<<2) + (singleSegment<<5) + (fcsCode<<6) );
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2407 size_t pos=0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2408
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2409 assert(!(params.fParams.contentSizeFlag && pledgedSrcSize == ZSTD_CONTENTSIZE_UNKNOWN));
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2410 RETURN_ERROR_IF(dstCapacity < ZSTD_FRAMEHEADERSIZE_MAX, dstSize_tooSmall);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2411 DEBUGLOG(4, "ZSTD_writeFrameHeader : dictIDFlag : %u ; dictID : %u ; dictIDSizeCode : %u",
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2412 !params.fParams.noDictIDFlag, (unsigned)dictID, (unsigned)dictIDSizeCode);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2413
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2414 if (params.format == ZSTD_f_zstd1) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2415 MEM_writeLE32(dst, ZSTD_MAGICNUMBER);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2416 pos = 4;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2417 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2418 op[pos++] = frameHeaderDescriptionByte;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2419 if (!singleSegment) op[pos++] = windowLogByte;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2420 switch(dictIDSizeCode)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2421 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2422 default: assert(0); /* impossible */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2423 case 0 : break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2424 case 1 : op[pos] = (BYTE)(dictID); pos++; break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2425 case 2 : MEM_writeLE16(op+pos, (U16)dictID); pos+=2; break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2426 case 3 : MEM_writeLE32(op+pos, dictID); pos+=4; break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2427 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2428 switch(fcsCode)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2429 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2430 default: assert(0); /* impossible */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2431 case 0 : if (singleSegment) op[pos++] = (BYTE)(pledgedSrcSize); break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2432 case 1 : MEM_writeLE16(op+pos, (U16)(pledgedSrcSize-256)); pos+=2; break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2433 case 2 : MEM_writeLE32(op+pos, (U32)(pledgedSrcSize)); pos+=4; break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2434 case 3 : MEM_writeLE64(op+pos, (U64)(pledgedSrcSize)); pos+=8; break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2435 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2436 return pos;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2437 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2438
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2439 /* ZSTD_writeLastEmptyBlock() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2440 * output an empty Block with end-of-frame mark to complete a frame
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2441 * @return : size of data written into `dst` (== ZSTD_blockHeaderSize (defined in zstd_internal.h))
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2442 * or an error code if `dstCapacity` is too small (<ZSTD_blockHeaderSize)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2443 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2444 size_t ZSTD_writeLastEmptyBlock(void* dst, size_t dstCapacity)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2445 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2446 RETURN_ERROR_IF(dstCapacity < ZSTD_blockHeaderSize, dstSize_tooSmall);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2447 { U32 const cBlockHeader24 = 1 /lastBlock/ + (((U32)bt_raw)<<1); /* 0 size */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2448 MEM_writeLE24(dst, cBlockHeader24);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2449 return ZSTD_blockHeaderSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2450 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2451 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2452
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2453 size_t ZSTD_referenceExternalSequences(ZSTD_CCtx* cctx, rawSeq* seq, size_t nbSeq)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2454 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2455 RETURN_ERROR_IF(cctx->stage != ZSTDcs_init, stage_wrong);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2456 RETURN_ERROR_IF(cctx->appliedParams.ldmParams.enableLdm,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2457 parameter_unsupported);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2458 cctx->externSeqStore.seq = seq;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2459 cctx->externSeqStore.size = nbSeq;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2460 cctx->externSeqStore.capacity = nbSeq;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2461 cctx->externSeqStore.pos = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2462 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2463 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2464
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2465
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2466 static size_t ZSTD_compressContinue_internal (ZSTD_CCtx* cctx,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2467 void* dst, size_t dstCapacity,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2468 const void* src, size_t srcSize,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2469 U32 frame, U32 lastFrameChunk)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2470 {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2471 ZSTD_matchState_t* const ms = &cctx->blockState.matchState;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2472 size_t fhSize = 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2473
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2474 DEBUGLOG(5, "ZSTD_compressContinue_internal, stage: %u, srcSize: %u",
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2475 cctx->stage, (unsigned)srcSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2476 RETURN_ERROR_IF(cctx->stage==ZSTDcs_created, stage_wrong,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2477 "missing init (ZSTD_compressBegin)");
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2478
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2479 if (frame && (cctx->stage==ZSTDcs_init)) {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2480 fhSize = ZSTD_writeFrameHeader(dst, dstCapacity, cctx->appliedParams,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2481 cctx->pledgedSrcSizePlusOne-1, cctx->dictID);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2482 FORWARD_IF_ERROR(fhSize);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2483 assert(fhSize <= dstCapacity);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2484 dstCapacity -= fhSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2485 dst = (char*)dst + fhSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2486 cctx->stage = ZSTDcs_ongoing;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2487 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2488
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2489 if (!srcSize) return fhSize; /* do not generate an empty block if no input */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2490
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2491 if (!ZSTD_window_update(&ms->window, src, srcSize)) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2492 ms->nextToUpdate = ms->window.dictLimit;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2493 }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2494 if (cctx->appliedParams.ldmParams.enableLdm) {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2495 ZSTD_window_update(&cctx->ldmState.window, src, srcSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2496 }
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2497
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2498 if (!frame) {
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2499 /* overflow check and correction for block mode */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2500 ZSTD_overflowCorrectIfNeeded(ms, &cctx->appliedParams, src, (BYTE const*)src + srcSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2501 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2502
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2503 DEBUGLOG(5, "ZSTD_compressContinue_internal (blockSize=%u)", (unsigned)cctx->blockSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2504 { size_t const cSize = frame ?
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2505 ZSTD_compress_frameChunk (cctx, dst, dstCapacity, src, srcSize, lastFrameChunk) :
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2506 ZSTD_compressBlock_internal (cctx, dst, dstCapacity, src, srcSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2507 FORWARD_IF_ERROR(cSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2508 cctx->consumedSrcSize += srcSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2509 cctx->producedCSize += (cSize + fhSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2510 assert(!(cctx->appliedParams.fParams.contentSizeFlag && cctx->pledgedSrcSizePlusOne == 0));
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2511 if (cctx->pledgedSrcSizePlusOne != 0) { /* control src size */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2512 ZSTD_STATIC_ASSERT(ZSTD_CONTENTSIZE_UNKNOWN == (unsigned long long)-1);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2513 RETURN_ERROR_IF(
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2514 cctx->consumedSrcSize+1 > cctx->pledgedSrcSizePlusOne,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2515 srcSize_wrong,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2516 "error : pledgedSrcSize = %u, while realSrcSize >= %u",
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2517 (unsigned)cctx->pledgedSrcSizePlusOne-1,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2518 (unsigned)cctx->consumedSrcSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2519 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2520 return cSize + fhSize;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2521 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2522 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2523
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2524 size_t ZSTD_compressContinue (ZSTD_CCtx* cctx,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2525 void* dst, size_t dstCapacity,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2526 const void* src, size_t srcSize)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2527 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2528 DEBUGLOG(5, "ZSTD_compressContinue (srcSize=%u)", (unsigned)srcSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2529 return ZSTD_compressContinue_internal(cctx, dst, dstCapacity, src, srcSize, 1 /* frame mode /, 0 / last chunk */);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2530 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2531
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2532
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2533 size_t ZSTD_getBlockSize(const ZSTD_CCtx* cctx)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2534 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2535 ZSTD_compressionParameters const cParams = cctx->appliedParams.cParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2536 assert(!ZSTD_checkCParams(cParams));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2537 return MIN (ZSTD_BLOCKSIZE_MAX, (U32)1 << cParams.windowLog);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2538 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2539
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2540 size_t ZSTD_compressBlock(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2541 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2542 DEBUGLOG(5, "ZSTD_compressBlock: srcSize = %u", (unsigned)srcSize);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2543 { size_t const blockSizeMax = ZSTD_getBlockSize(cctx);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2544 RETURN_ERROR_IF(srcSize > blockSizeMax, srcSize_wrong); }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2545
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2546 return ZSTD_compressContinue_internal(cctx, dst, dstCapacity, src, srcSize, 0 /* frame mode /, 0 / last chunk */);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2547 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2548
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2549 /*! ZSTD_loadDictionaryContent() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2550 * @return : 0, or an error code
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2551 */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2552 static size_t ZSTD_loadDictionaryContent(ZSTD_matchState_t* ms,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2553 ZSTD_CCtx_params const* params,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2554 const void* src, size_t srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2555 ZSTD_dictTableLoadMethod_e dtlm)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2556 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2557 const BYTE* ip = (const BYTE*) src;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2558 const BYTE* const iend = ip + srcSize;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2559
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2560 ZSTD_window_update(&ms->window, src, srcSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2561 ms->loadedDictEnd = params->forceWindow ? 0 : (U32)(iend - ms->window.base);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2562
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2563 /* Assert that we the ms params match the params we're being given */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2564 ZSTD_assertEqualCParams(params->cParams, ms->cParams);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2565
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2566 if (srcSize <= HASH_READ_SIZE) return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2567
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2568 while (iend - ip > HASH_READ_SIZE) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2569 size_t const remaining = (size_t)(iend - ip);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2570 size_t const chunk = MIN(remaining, ZSTD_CHUNKSIZE_MAX);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2571 const BYTE* const ichunk = ip + chunk;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2572
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2573 ZSTD_overflowCorrectIfNeeded(ms, params, ip, ichunk);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2574
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2575 switch(params->cParams.strategy)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2576 {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2577 case ZSTD_fast:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2578 ZSTD_fillHashTable(ms, ichunk, dtlm);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2579 break;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2580 case ZSTD_dfast:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2581 ZSTD_fillDoubleHashTable(ms, ichunk, dtlm);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2582 break;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2583
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2584 case ZSTD_greedy:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2585 case ZSTD_lazy:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2586 case ZSTD_lazy2:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2587 if (chunk >= HASH_READ_SIZE)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2588 ZSTD_insertAndFindFirstIndex(ms, ichunk-HASH_READ_SIZE);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2589 break;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2590
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2591 case ZSTD_btlazy2: /* we want the dictionary table fully sorted */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2592 case ZSTD_btopt:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2593 case ZSTD_btultra:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2594 case ZSTD_btultra2:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2595 if (chunk >= HASH_READ_SIZE)
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2596 ZSTD_updateTree(ms, ichunk-HASH_READ_SIZE, ichunk);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2597 break;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2598
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2599 default:
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2600 assert(0); /* not possible : not a valid strategy id */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2601 }
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2602
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2603 ip = ichunk;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2604 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2605
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2606 ms->nextToUpdate = (U32)(iend - ms->window.base);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2607 return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2608 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2609
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2610
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2611 /* Dictionaries that assign zero probability to symbols that show up causes problems
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2612 when FSE encoding. Refuse dictionaries that assign zero probability to symbols
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2613 that we may encounter during compression.
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2614 NOTE: This behavior is not standard and could be improved in the future. */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2615 static size_t ZSTD_checkDictNCount(short* normalizedCounter, unsigned dictMaxSymbolValue, unsigned maxSymbolValue) {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2616 U32 s;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2617 RETURN_ERROR_IF(dictMaxSymbolValue < maxSymbolValue, dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2618 for (s = 0; s <= maxSymbolValue; ++s) {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2619 RETURN_ERROR_IF(normalizedCounter[s] == 0, dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2620 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2621 return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2622 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2623
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2624
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2625 /* Dictionary format :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2626 * See :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2627 * https://github.com/facebook/zstd/blob/master/doc/zstd_compression_format.md#dictionary-format
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2628 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2629 /*! ZSTD_loadZstdDictionary() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2630 * @return : dictID, or an error code
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2631 * assumptions : magic number supposed already checked
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2632 * dictSize supposed > 8
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2633 */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2634 static size_t ZSTD_loadZstdDictionary(ZSTD_compressedBlockState_t* bs,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2635 ZSTD_matchState_t* ms,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2636 ZSTD_CCtx_params const* params,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2637 const void* dict, size_t dictSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2638 ZSTD_dictTableLoadMethod_e dtlm,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2639 void* workspace)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2640 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2641 const BYTE* dictPtr = (const BYTE*)dict;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2642 const BYTE* const dictEnd = dictPtr + dictSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2643 short offcodeNCount[MaxOff+1];
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2644 unsigned offcodeMaxValue = MaxOff;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2645 size_t dictID;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2646
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2647 ZSTD_STATIC_ASSERT(HUF_WORKSPACE_SIZE >= (1<<MAX(MLFSELog,LLFSELog)));
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2648 assert(dictSize > 8);
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2649 assert(MEM_readLE32(dictPtr) == ZSTD_MAGIC_DICTIONARY);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2650
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2651 dictPtr += 4; /* skip magic number */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2652 dictID = params->fParams.noDictIDFlag ? 0 : MEM_readLE32(dictPtr);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2653 dictPtr += 4;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2654
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2655 { unsigned maxSymbolValue = 255;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2656 size_t const hufHeaderSize = HUF_readCTable((HUF_CElt*)bs->entropy.huf.CTable, &maxSymbolValue, dictPtr, dictEnd-dictPtr);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2657 RETURN_ERROR_IF(HUF_isError(hufHeaderSize), dictionary_corrupted);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2658 RETURN_ERROR_IF(maxSymbolValue < 255, dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2659 dictPtr += hufHeaderSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2660 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2661
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2662 { unsigned offcodeLog;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2663 size_t const offcodeHeaderSize = FSE_readNCount(offcodeNCount, &offcodeMaxValue, &offcodeLog, dictPtr, dictEnd-dictPtr);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2664 RETURN_ERROR_IF(FSE_isError(offcodeHeaderSize), dictionary_corrupted);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2665 RETURN_ERROR_IF(offcodeLog > OffFSELog, dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2666 /* Defer checking offcodeMaxValue because we need to know the size of the dictionary content */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2667 /* fill all offset symbols to avoid garbage at end of table */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2668 RETURN_ERROR_IF(FSE_isError(FSE_buildCTable_wksp(
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2669 bs->entropy.fse.offcodeCTable,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2670 offcodeNCount, MaxOff, offcodeLog,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2671 workspace, HUF_WORKSPACE_SIZE)),
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2672 dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2673 dictPtr += offcodeHeaderSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2674 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2675
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2676 { short matchlengthNCount[MaxML+1];
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2677 unsigned matchlengthMaxValue = MaxML, matchlengthLog;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2678 size_t const matchlengthHeaderSize = FSE_readNCount(matchlengthNCount, &matchlengthMaxValue, &matchlengthLog, dictPtr, dictEnd-dictPtr);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2679 RETURN_ERROR_IF(FSE_isError(matchlengthHeaderSize), dictionary_corrupted);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2680 RETURN_ERROR_IF(matchlengthLog > MLFSELog, dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2681 /* Every match length code must have non-zero probability */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2682 FORWARD_IF_ERROR( ZSTD_checkDictNCount(matchlengthNCount, matchlengthMaxValue, MaxML));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2683 RETURN_ERROR_IF(FSE_isError(FSE_buildCTable_wksp(
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2684 bs->entropy.fse.matchlengthCTable,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2685 matchlengthNCount, matchlengthMaxValue, matchlengthLog,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2686 workspace, HUF_WORKSPACE_SIZE)),
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2687 dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2688 dictPtr += matchlengthHeaderSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2689 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2690
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2691 { short litlengthNCount[MaxLL+1];
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2692 unsigned litlengthMaxValue = MaxLL, litlengthLog;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2693 size_t const litlengthHeaderSize = FSE_readNCount(litlengthNCount, &litlengthMaxValue, &litlengthLog, dictPtr, dictEnd-dictPtr);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2694 RETURN_ERROR_IF(FSE_isError(litlengthHeaderSize), dictionary_corrupted);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2695 RETURN_ERROR_IF(litlengthLog > LLFSELog, dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2696 /* Every literal length code must have non-zero probability */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2697 FORWARD_IF_ERROR( ZSTD_checkDictNCount(litlengthNCount, litlengthMaxValue, MaxLL));
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2698 RETURN_ERROR_IF(FSE_isError(FSE_buildCTable_wksp(
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2699 bs->entropy.fse.litlengthCTable,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2700 litlengthNCount, litlengthMaxValue, litlengthLog,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2701 workspace, HUF_WORKSPACE_SIZE)),
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2702 dictionary_corrupted);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2703 dictPtr += litlengthHeaderSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2704 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2705
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2706 RETURN_ERROR_IF(dictPtr+12 > dictEnd, dictionary_corrupted);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2707 bs->rep[0] = MEM_readLE32(dictPtr+0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2708 bs->rep[1] = MEM_readLE32(dictPtr+4);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2709 bs->rep[2] = MEM_readLE32(dictPtr+8);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2710 dictPtr += 12;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2711
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2712 { size_t const dictContentSize = (size_t)(dictEnd - dictPtr);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2713 U32 offcodeMax = MaxOff;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2714 if (dictContentSize <= ((U32)-1) - 128 KB) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2715 U32 const maxOffset = (U32)dictContentSize + 128 KB; /* The maximum offset that must be supported */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2716 offcodeMax = ZSTD_highbit32(maxOffset); /* Calculate minimum offset code required to represent maxOffset */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2717 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2718 /* All offset values <= dictContentSize + 128 KB must be representable */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2719 FORWARD_IF_ERROR(ZSTD_checkDictNCount(offcodeNCount, offcodeMaxValue, MIN(offcodeMax, MaxOff)));
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2720 /* All repCodes must be <= dictContentSize and != 0*/
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2721 { U32 u;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2722 for (u=0; u<3; u++) {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2723 RETURN_ERROR_IF(bs->rep[u] == 0, dictionary_corrupted);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2724 RETURN_ERROR_IF(bs->rep[u] > dictContentSize, dictionary_corrupted);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2725 } }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2726
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2727 bs->entropy.huf.repeatMode = HUF_repeat_valid;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2728 bs->entropy.fse.offcode_repeatMode = FSE_repeat_valid;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2729 bs->entropy.fse.matchlength_repeatMode = FSE_repeat_valid;
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2730 bs->entropy.fse.litlength_repeatMode = FSE_repeat_valid;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2731 FORWARD_IF_ERROR(ZSTD_loadDictionaryContent(ms, params, dictPtr, dictContentSize, dtlm));
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2732 return dictID;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2733 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2734 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2735
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2736 /** ZSTD_compress_insertDictionary() :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2737 * @return : dictID, or an error code */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2738 static size_t
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2739 ZSTD_compress_insertDictionary(ZSTD_compressedBlockState_t* bs,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2740 ZSTD_matchState_t* ms,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2741 const ZSTD_CCtx_params* params,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2742 const void* dict, size_t dictSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2743 ZSTD_dictContentType_e dictContentType,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2744 ZSTD_dictTableLoadMethod_e dtlm,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2745 void* workspace)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2746 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2747 DEBUGLOG(4, "ZSTD_compress_insertDictionary (dictSize=%u)", (U32)dictSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2748 if ((dict==NULL) \|\| (dictSize<=8)) return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2749
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2750 ZSTD_reset_compressedBlockState(bs);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2751
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2752 /* dict restricted modes */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2753 if (dictContentType == ZSTD_dct_rawContent)
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2754 return ZSTD_loadDictionaryContent(ms, params, dict, dictSize, dtlm);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2755
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2756 if (MEM_readLE32(dict) != ZSTD_MAGIC_DICTIONARY) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2757 if (dictContentType == ZSTD_dct_auto) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2758 DEBUGLOG(4, "raw content dictionary detected");
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2759 return ZSTD_loadDictionaryContent(ms, params, dict, dictSize, dtlm);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2760 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2761 RETURN_ERROR_IF(dictContentType == ZSTD_dct_fullDict, dictionary_wrong);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2762 assert(0); /* impossible */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2763 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2764
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2765 /* dict as full zstd dictionary */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2766 return ZSTD_loadZstdDictionary(bs, ms, params, dict, dictSize, dtlm, workspace);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2767 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2768
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2769 /*! ZSTD_compressBegin_internal() :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2770 * @return : 0, or an error code */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2771 static size_t ZSTD_compressBegin_internal(ZSTD_CCtx* cctx,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2772 const void* dict, size_t dictSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2773 ZSTD_dictContentType_e dictContentType,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2774 ZSTD_dictTableLoadMethod_e dtlm,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2775 const ZSTD_CDict* cdict,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2776 ZSTD_CCtx_params params, U64 pledgedSrcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2777 ZSTD_buffered_policy_e zbuff)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2778 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2779 DEBUGLOG(4, "ZSTD_compressBegin_internal: wlog=%u", params.cParams.windowLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2780 /* params are supposed to be fully validated at this point */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2781 assert(!ZSTD_isError(ZSTD_checkCParams(params.cParams)));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2782 assert(!((dict) && (cdict))); /* either dict or cdict, not both */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2783
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2784 if (cdict && cdict->dictContentSize>0) {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2785 return ZSTD_resetCCtx_usingCDict(cctx, cdict, params, pledgedSrcSize, zbuff);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2786 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2787
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2788 FORWARD_IF_ERROR( ZSTD_resetCCtx_internal(cctx, params, pledgedSrcSize,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2789 ZSTDcrp_continue, zbuff) );
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2790 { size_t const dictID = ZSTD_compress_insertDictionary(
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2791 cctx->blockState.prevCBlock, &cctx->blockState.matchState,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2792 &params, dict, dictSize, dictContentType, dtlm, cctx->entropyWorkspace);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2793 FORWARD_IF_ERROR(dictID);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2794 assert(dictID <= UINT_MAX);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2795 cctx->dictID = (U32)dictID;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2796 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2797 return 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2798 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2799
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2800 size_t ZSTD_compressBegin_advanced_internal(ZSTD_CCtx* cctx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2801 const void* dict, size_t dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2802 ZSTD_dictContentType_e dictContentType,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2803 ZSTD_dictTableLoadMethod_e dtlm,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2804 const ZSTD_CDict* cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2805 ZSTD_CCtx_params params,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2806 unsigned long long pledgedSrcSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2807 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2808 DEBUGLOG(4, "ZSTD_compressBegin_advanced_internal: wlog=%u", params.cParams.windowLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2809 /* compression parameters verification and optimization */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2810 FORWARD_IF_ERROR( ZSTD_checkCParams(params.cParams) );
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2811 return ZSTD_compressBegin_internal(cctx,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2812 dict, dictSize, dictContentType, dtlm,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2813 cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2814 params, pledgedSrcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2815 ZSTDb_not_buffered);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2816 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2817
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2818 /*! ZSTD_compressBegin_advanced() :
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2819 * @return : 0, or an error code */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2820 size_t ZSTD_compressBegin_advanced(ZSTD_CCtx* cctx,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2821 const void* dict, size_t dictSize,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2822 ZSTD_parameters params, unsigned long long pledgedSrcSize)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2823 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2824 ZSTD_CCtx_params const cctxParams =
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2825 ZSTD_assignParamsToCCtxParams(cctx->requestedParams, params);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2826 return ZSTD_compressBegin_advanced_internal(cctx,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2827 dict, dictSize, ZSTD_dct_auto, ZSTD_dtlm_fast,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2828 NULL /cdict/,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2829 cctxParams, pledgedSrcSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2830 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2831
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2832 size_t ZSTD_compressBegin_usingDict(ZSTD_CCtx* cctx, const void* dict, size_t dictSize, int compressionLevel)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2833 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2834 ZSTD_parameters const params = ZSTD_getParams(compressionLevel, ZSTD_CONTENTSIZE_UNKNOWN, dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2835 ZSTD_CCtx_params const cctxParams =
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2836 ZSTD_assignParamsToCCtxParams(cctx->requestedParams, params);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2837 DEBUGLOG(4, "ZSTD_compressBegin_usingDict (dictSize=%u)", (unsigned)dictSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2838 return ZSTD_compressBegin_internal(cctx, dict, dictSize, ZSTD_dct_auto, ZSTD_dtlm_fast, NULL,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2839 cctxParams, ZSTD_CONTENTSIZE_UNKNOWN, ZSTDb_not_buffered);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2840 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2841
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	2842 size_t ZSTD_compressBegin(ZSTD_CCtx* cctx, int compressionLevel)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2843 {
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	2844 return ZSTD_compressBegin_usingDict(cctx, NULL, 0, compressionLevel);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2845 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2846
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2847
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2848 /*! ZSTD_writeEpilogue() :
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2849 * Ends a frame.
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2850 * @return : nb of bytes written into dst (or an error code) */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2851 static size_t ZSTD_writeEpilogue(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2852 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2853 BYTE* const ostart = (BYTE*)dst;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2854 BYTE* op = ostart;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2855 size_t fhSize = 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2856
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2857 DEBUGLOG(4, "ZSTD_writeEpilogue");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2858 RETURN_ERROR_IF(cctx->stage == ZSTDcs_created, stage_wrong, "init missing");
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2859
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2860 /* special case : empty frame */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2861 if (cctx->stage == ZSTDcs_init) {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2862 fhSize = ZSTD_writeFrameHeader(dst, dstCapacity, cctx->appliedParams, 0, 0);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2863 FORWARD_IF_ERROR(fhSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2864 dstCapacity -= fhSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2865 op += fhSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2866 cctx->stage = ZSTDcs_ongoing;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2867 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2868
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2869 if (cctx->stage != ZSTDcs_ending) {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2870 /* write one last empty block, make it the "last" block */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2871 U32 const cBlockHeader24 = 1 /* last block */ + (((U32)bt_raw)<<1) + 0;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2872 RETURN_ERROR_IF(dstCapacity<4, dstSize_tooSmall);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2873 MEM_writeLE32(op, cBlockHeader24);
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2874 op += ZSTD_blockHeaderSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2875 dstCapacity -= ZSTD_blockHeaderSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2876 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2877
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2878 if (cctx->appliedParams.fParams.checksumFlag) {
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2879 U32 const checksum = (U32) XXH64_digest(&cctx->xxhState);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2880 RETURN_ERROR_IF(dstCapacity<4, dstSize_tooSmall);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2881 DEBUGLOG(4, "ZSTD_writeEpilogue: write checksum : %08X", (unsigned)checksum);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2882 MEM_writeLE32(op, checksum);
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2883 op += 4;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2884 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2885
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2886 cctx->stage = ZSTDcs_created; /* return to "created but no init" status */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2887 return op-ostart;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2888 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2889
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2890 size_t ZSTD_compressEnd (ZSTD_CCtx* cctx,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2891 void* dst, size_t dstCapacity,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2892 const void* src, size_t srcSize)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2893 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2894 size_t endResult;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2895 size_t const cSize = ZSTD_compressContinue_internal(cctx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2896 dst, dstCapacity, src, srcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2897 1 /* frame mode /, 1 / last chunk */);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2898 FORWARD_IF_ERROR(cSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2899 endResult = ZSTD_writeEpilogue(cctx, (char*)dst + cSize, dstCapacity-cSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2900 FORWARD_IF_ERROR(endResult);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2901 assert(!(cctx->appliedParams.fParams.contentSizeFlag && cctx->pledgedSrcSizePlusOne == 0));
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2902 if (cctx->pledgedSrcSizePlusOne != 0) { /* control src size */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2903 ZSTD_STATIC_ASSERT(ZSTD_CONTENTSIZE_UNKNOWN == (unsigned long long)-1);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2904 DEBUGLOG(4, "end of frame : controlling src size");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2905 RETURN_ERROR_IF(
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2906 cctx->pledgedSrcSizePlusOne != cctx->consumedSrcSize+1,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2907 srcSize_wrong,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2908 "error : pledgedSrcSize = %u, while realSrcSize = %u",
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2909 (unsigned)cctx->pledgedSrcSizePlusOne-1,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2910 (unsigned)cctx->consumedSrcSize);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2911 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2912 return cSize + endResult;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2913 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2914
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2915
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2916 static size_t ZSTD_compress_internal (ZSTD_CCtx* cctx,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2917 void* dst, size_t dstCapacity,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2918 const void* src, size_t srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2919 const void* dict,size_t dictSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2920 ZSTD_parameters params)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2921 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2922 ZSTD_CCtx_params const cctxParams =
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2923 ZSTD_assignParamsToCCtxParams(cctx->requestedParams, params);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2924 DEBUGLOG(4, "ZSTD_compress_internal");
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2925 return ZSTD_compress_advanced_internal(cctx,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2926 dst, dstCapacity,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2927 src, srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2928 dict, dictSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2929 cctxParams);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2930 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2931
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2932 size_t ZSTD_compress_advanced (ZSTD_CCtx* cctx,
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2933 void* dst, size_t dstCapacity,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2934 const void* src, size_t srcSize,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2935 const void* dict,size_t dictSize,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2936 ZSTD_parameters params)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2937 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2938 DEBUGLOG(4, "ZSTD_compress_advanced");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2939 FORWARD_IF_ERROR(ZSTD_checkCParams(params.cParams));
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2940 return ZSTD_compress_internal(cctx,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2941 dst, dstCapacity,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2942 src, srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2943 dict, dictSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2944 params);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2945 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2946
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2947 /* Internal */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2948 size_t ZSTD_compress_advanced_internal(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2949 ZSTD_CCtx* cctx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2950 void* dst, size_t dstCapacity,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2951 const void* src, size_t srcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2952 const void* dict,size_t dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2953 ZSTD_CCtx_params params)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2954 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2955 DEBUGLOG(4, "ZSTD_compress_advanced_internal (srcSize:%u)", (unsigned)srcSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	2956 FORWARD_IF_ERROR( ZSTD_compressBegin_internal(cctx,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2957 dict, dictSize, ZSTD_dct_auto, ZSTD_dtlm_fast, NULL,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2958 params, srcSize, ZSTDb_not_buffered) );
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2959 return ZSTD_compressEnd(cctx, dst, dstCapacity, src, srcSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2960 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2961
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2962 size_t ZSTD_compress_usingDict(ZSTD_CCtx* cctx,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2963 void* dst, size_t dstCapacity,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2964 const void* src, size_t srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2965 const void* dict, size_t dictSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2966 int compressionLevel)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2967 {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2968 ZSTD_parameters const params = ZSTD_getParams(compressionLevel, srcSize + (!srcSize), dict ? dictSize : 0);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2969 ZSTD_CCtx_params cctxParams = ZSTD_assignParamsToCCtxParams(cctx->requestedParams, params);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2970 assert(params.fParams.contentSizeFlag == 1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2971 return ZSTD_compress_advanced_internal(cctx, dst, dstCapacity, src, srcSize, dict, dictSize, cctxParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2972 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2973
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2974 size_t ZSTD_compressCCtx(ZSTD_CCtx* cctx,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2975 void* dst, size_t dstCapacity,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2976 const void* src, size_t srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2977 int compressionLevel)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2978 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	2979 DEBUGLOG(4, "ZSTD_compressCCtx (srcSize=%u)", (unsigned)srcSize);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2980 assert(cctx != NULL);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2981 return ZSTD_compress_usingDict(cctx, dst, dstCapacity, src, srcSize, NULL, 0, compressionLevel);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2982 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2983
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2984 size_t ZSTD_compress(void* dst, size_t dstCapacity,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2985 const void* src, size_t srcSize,
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2986 int compressionLevel)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2987 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2988 size_t result;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2989 ZSTD_CCtx ctxBody;
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2990 ZSTD_initCCtx(&ctxBody, ZSTD_defaultCMem);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2991 result = ZSTD_compressCCtx(&ctxBody, dst, dstCapacity, src, srcSize, compressionLevel);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	2992 ZSTD_freeCCtxContent(&ctxBody); /* can't free ctxBody itself, as it's on stack; free only heap content */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2993 return result;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2994 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2995
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2996
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2997 /* ===== Dictionary API ===== */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	2998
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	2999 /*! ZSTD_estimateCDictSize_advanced() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3000 * Estimate amount of memory that will be needed to create a dictionary with following arguments */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3001 size_t ZSTD_estimateCDictSize_advanced(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3002 size_t dictSize, ZSTD_compressionParameters cParams,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3003 ZSTD_dictLoadMethod_e dictLoadMethod)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3004 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3005 DEBUGLOG(5, "sizeof(ZSTD_CDict) : %u", (unsigned)sizeof(ZSTD_CDict));
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3006 return sizeof(ZSTD_CDict) + HUF_WORKSPACE_SIZE + ZSTD_sizeof_matchState(&cParams, /* forCCtx */ 0)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3007 + (dictLoadMethod == ZSTD_dlm_byRef ? 0 : dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3008 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3009
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3010 size_t ZSTD_estimateCDictSize(size_t dictSize, int compressionLevel)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3011 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3012 ZSTD_compressionParameters const cParams = ZSTD_getCParams(compressionLevel, 0, dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3013 return ZSTD_estimateCDictSize_advanced(dictSize, cParams, ZSTD_dlm_byCopy);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3014 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3015
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3016 size_t ZSTD_sizeof_CDict(const ZSTD_CDict* cdict)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3017 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3018 if (cdict==NULL) return 0; /* support sizeof on NULL */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3019 DEBUGLOG(5, "sizeof(cdict) : %u", (unsigned)sizeof(cdict));
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3020 return cdict->workspaceSize + (cdict->dictBuffer ? cdict->dictContentSize : 0) + sizeof(*cdict);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3021 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3022
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3023 static size_t ZSTD_initCDict_internal(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3024 ZSTD_CDict* cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3025 const void* dictBuffer, size_t dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3026 ZSTD_dictLoadMethod_e dictLoadMethod,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3027 ZSTD_dictContentType_e dictContentType,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3028 ZSTD_compressionParameters cParams)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3029 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3030 DEBUGLOG(3, "ZSTD_initCDict_internal (dictContentType:%u)", (unsigned)dictContentType);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3031 assert(!ZSTD_checkCParams(cParams));
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3032 cdict->matchState.cParams = cParams;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3033 if ((dictLoadMethod == ZSTD_dlm_byRef) \|\| (!dictBuffer) \|\| (!dictSize)) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3034 cdict->dictBuffer = NULL;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3035 cdict->dictContent = dictBuffer;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3036 } else {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3037 void* const internalBuffer = ZSTD_malloc(dictSize, cdict->customMem);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3038 cdict->dictBuffer = internalBuffer;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3039 cdict->dictContent = internalBuffer;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3040 RETURN_ERROR_IF(!internalBuffer, memory_allocation);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3041 memcpy(internalBuffer, dictBuffer, dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3042 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3043 cdict->dictContentSize = dictSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3044
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3045 /* Reset the state to no dictionary */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3046 ZSTD_reset_compressedBlockState(&cdict->cBlockState);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3047 { void* const end = ZSTD_reset_matchState(&cdict->matchState,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3048 (U32*)cdict->workspace + HUF_WORKSPACE_SIZE_U32,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3049 &cParams,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3050 ZSTDcrp_continue, ZSTD_resetTarget_CDict);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3051 assert(end == (char*)cdict->workspace + cdict->workspaceSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3052 (void)end;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3053 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3054 /* (Maybe) load the dictionary
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3055 * Skips loading the dictionary if it is <= 8 bytes.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3056 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3057 { ZSTD_CCtx_params params;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3058 memset(&params, 0, sizeof(params));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3059 params.compressionLevel = ZSTD_CLEVEL_DEFAULT;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3060 params.fParams.contentSizeFlag = 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3061 params.cParams = cParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3062 { size_t const dictID = ZSTD_compress_insertDictionary(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3063 &cdict->cBlockState, &cdict->matchState, &params,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3064 cdict->dictContent, cdict->dictContentSize,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3065 dictContentType, ZSTD_dtlm_full, cdict->workspace);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3066 FORWARD_IF_ERROR(dictID);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3067 assert(dictID <= (size_t)(U32)-1);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3068 cdict->dictID = (U32)dictID;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3069 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3070 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3071
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3072 return 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3073 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3074
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3075 ZSTD_CDict* ZSTD_createCDict_advanced(const void* dictBuffer, size_t dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3076 ZSTD_dictLoadMethod_e dictLoadMethod,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3077 ZSTD_dictContentType_e dictContentType,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3078 ZSTD_compressionParameters cParams, ZSTD_customMem customMem)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3079 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3080 DEBUGLOG(3, "ZSTD_createCDict_advanced, mode %u", (unsigned)dictContentType);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3081 if (!customMem.customAlloc ^ !customMem.customFree) return NULL;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3082
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3083 { ZSTD_CDict* const cdict = (ZSTD_CDict*)ZSTD_malloc(sizeof(ZSTD_CDict), customMem);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3084 size_t const workspaceSize = HUF_WORKSPACE_SIZE + ZSTD_sizeof_matchState(&cParams, /* forCCtx */ 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3085 void* const workspace = ZSTD_malloc(workspaceSize, customMem);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3086
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3087 if (!cdict \|\| !workspace) {
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3088 ZSTD_free(cdict, customMem);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3089 ZSTD_free(workspace, customMem);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3090 return NULL;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3091 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3092 cdict->customMem = customMem;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3093 cdict->workspace = workspace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3094 cdict->workspaceSize = workspaceSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3095 if (ZSTD_isError( ZSTD_initCDict_internal(cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3096 dictBuffer, dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3097 dictLoadMethod, dictContentType,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3098 cParams) )) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3099 ZSTD_freeCDict(cdict);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3100 return NULL;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3101 }
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	3102
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3103 return cdict;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3104 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3105 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3106
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3107 ZSTD_CDict* ZSTD_createCDict(const void* dict, size_t dictSize, int compressionLevel)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3108 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3109 ZSTD_compressionParameters cParams = ZSTD_getCParams(compressionLevel, 0, dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3110 return ZSTD_createCDict_advanced(dict, dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3111 ZSTD_dlm_byCopy, ZSTD_dct_auto,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3112 cParams, ZSTD_defaultCMem);
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	3113 }
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	3114
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	3115 ZSTD_CDict* ZSTD_createCDict_byReference(const void* dict, size_t dictSize, int compressionLevel)
c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	3116 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3117 ZSTD_compressionParameters cParams = ZSTD_getCParams(compressionLevel, 0, dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3118 return ZSTD_createCDict_advanced(dict, dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3119 ZSTD_dlm_byRef, ZSTD_dct_auto,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3120 cParams, ZSTD_defaultCMem);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3121 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3122
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3123 size_t ZSTD_freeCDict(ZSTD_CDict* cdict)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3124 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3125 if (cdict==NULL) return 0; /* support free on NULL */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3126 { ZSTD_customMem const cMem = cdict->customMem;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3127 ZSTD_free(cdict->workspace, cMem);
30895 c32454d69b85 zstd: vendor python-zstandard 0.7.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30822 diff changeset	3128 ZSTD_free(cdict->dictBuffer, cMem);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3129 ZSTD_free(cdict, cMem);
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3130 return 0;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3131 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3132 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3133
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3134 /*! ZSTD_initStaticCDict_advanced() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3135 * Generate a digested dictionary in provided memory area.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3136 * workspace: The memory area to emplace the dictionary into.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3137 * Provided pointer must 8-bytes aligned.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3138 * It must outlive dictionary usage.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3139 * workspaceSize: Use ZSTD_estimateCDictSize()
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3140 * to determine how large workspace must be.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3141 * cParams : use ZSTD_getCParams() to transform a compression level
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3142 * into its relevants cParams.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3143 * @return : pointer to ZSTD_CDict*, or NULL if error (size too small)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3144 * Note : there is no corresponding "free" function.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3145 * Since workspace was allocated externally, it must be freed externally.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3146 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3147 const ZSTD_CDict* ZSTD_initStaticCDict(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3148 void* workspace, size_t workspaceSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3149 const void* dict, size_t dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3150 ZSTD_dictLoadMethod_e dictLoadMethod,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3151 ZSTD_dictContentType_e dictContentType,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3152 ZSTD_compressionParameters cParams)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3153 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3154 size_t const matchStateSize = ZSTD_sizeof_matchState(&cParams, /* forCCtx */ 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3155 size_t const neededSize = sizeof(ZSTD_CDict) + (dictLoadMethod == ZSTD_dlm_byRef ? 0 : dictSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3156 + HUF_WORKSPACE_SIZE + matchStateSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3157 ZSTD_CDict* const cdict = (ZSTD_CDict*) workspace;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3158 void* ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3159 if ((size_t)workspace & 7) return NULL; /* 8-aligned */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3160 DEBUGLOG(4, "(workspaceSize < neededSize) : (%u < %u) => %u",
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3161 (unsigned)workspaceSize, (unsigned)neededSize, (unsigned)(workspaceSize < neededSize));
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3162 if (workspaceSize < neededSize) return NULL;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3163
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3164 if (dictLoadMethod == ZSTD_dlm_byCopy) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3165 memcpy(cdict+1, dict, dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3166 dict = cdict+1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3167 ptr = (char*)workspace + sizeof(ZSTD_CDict) + dictSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3168 } else {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3169 ptr = cdict+1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3170 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3171 cdict->workspace = ptr;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3172 cdict->workspaceSize = HUF_WORKSPACE_SIZE + matchStateSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3173
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3174 if (ZSTD_isError( ZSTD_initCDict_internal(cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3175 dict, dictSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3176 ZSTD_dlm_byRef, dictContentType,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3177 cParams) ))
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3178 return NULL;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3179
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3180 return cdict;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3181 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3182
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3183 ZSTD_compressionParameters ZSTD_getCParamsFromCDict(const ZSTD_CDict* cdict)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3184 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3185 assert(cdict != NULL);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3186 return cdict->matchState.cParams;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3187 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3188
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3189 /* ZSTD_compressBegin_usingCDict_advanced() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3190 * cdict must be != NULL */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3191 size_t ZSTD_compressBegin_usingCDict_advanced(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3192 ZSTD_CCtx* const cctx, const ZSTD_CDict* const cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3193 ZSTD_frameParameters const fParams, unsigned long long const pledgedSrcSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3194 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3195 DEBUGLOG(4, "ZSTD_compressBegin_usingCDict_advanced");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3196 RETURN_ERROR_IF(cdict==NULL, dictionary_wrong);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3197 { ZSTD_CCtx_params params = cctx->requestedParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3198 params.cParams = ZSTD_getCParamsFromCDict(cdict);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3199 /* Increase window log to fit the entire dictionary and source if the
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3200 * source size is known. Limit the increase to 19, which is the
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3201 * window log for compression level 1 with the largest source size.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3202 */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3203 if (pledgedSrcSize != ZSTD_CONTENTSIZE_UNKNOWN) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3204 U32 const limitedSrcSize = (U32)MIN(pledgedSrcSize, 1U << 19);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3205 U32 const limitedSrcLog = limitedSrcSize > 1 ? ZSTD_highbit32(limitedSrcSize - 1) + 1 : 1;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3206 params.cParams.windowLog = MAX(params.cParams.windowLog, limitedSrcLog);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3207 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3208 params.fParams = fParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3209 return ZSTD_compressBegin_internal(cctx,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3210 NULL, 0, ZSTD_dct_auto, ZSTD_dtlm_fast,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3211 cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3212 params, pledgedSrcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3213 ZSTDb_not_buffered);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3214 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3215 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3216
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3217 /* ZSTD_compressBegin_usingCDict() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3218 * pledgedSrcSize=0 means "unknown"
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3219 * if pledgedSrcSize>0, it will enable contentSizeFlag */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3220 size_t ZSTD_compressBegin_usingCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3221 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3222 ZSTD_frameParameters const fParams = { 0 /content/, 0 /checksum/, 0 /noDictID/ };
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3223 DEBUGLOG(4, "ZSTD_compressBegin_usingCDict : dictIDFlag == %u", !fParams.noDictIDFlag);
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3224 return ZSTD_compressBegin_usingCDict_advanced(cctx, cdict, fParams, ZSTD_CONTENTSIZE_UNKNOWN);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3225 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3226
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3227 size_t ZSTD_compress_usingCDict_advanced(ZSTD_CCtx* cctx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3228 void* dst, size_t dstCapacity,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3229 const void* src, size_t srcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3230 const ZSTD_CDict* cdict, ZSTD_frameParameters fParams)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3231 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3232 FORWARD_IF_ERROR(ZSTD_compressBegin_usingCDict_advanced(cctx, cdict, fParams, srcSize)); /* will check if cdict != NULL */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3233 return ZSTD_compressEnd(cctx, dst, dstCapacity, src, srcSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3234 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3235
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3236 /*! ZSTD_compress_usingCDict() :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3237 * Compression using a digested Dictionary.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3238 * Faster startup than ZSTD_compress_usingDict(), recommended when same dictionary is used multiple times.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3239 * Note that compression parameters are decided at CDict creation time
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3240 * while frame parameters are hardcoded */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3241 size_t ZSTD_compress_usingCDict(ZSTD_CCtx* cctx,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3242 void* dst, size_t dstCapacity,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3243 const void* src, size_t srcSize,
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3244 const ZSTD_CDict* cdict)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3245 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3246 ZSTD_frameParameters const fParams = { 1 /content/, 0 /checksum/, 0 /noDictID/ };
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3247 return ZSTD_compress_usingCDict_advanced(cctx, dst, dstCapacity, src, srcSize, cdict, fParams);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3248 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3249
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3250
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3251
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3252 /* ******************************************************************
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3253 * Streaming
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3254 ********************************************************************/
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3255
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3256 ZSTD_CStream* ZSTD_createCStream(void)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3257 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3258 DEBUGLOG(3, "ZSTD_createCStream");
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3259 return ZSTD_createCStream_advanced(ZSTD_defaultCMem);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3260 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3261
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3262 ZSTD_CStream* ZSTD_initStaticCStream(void *workspace, size_t workspaceSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3263 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3264 return ZSTD_initStaticCCtx(workspace, workspaceSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3265 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3266
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3267 ZSTD_CStream* ZSTD_createCStream_advanced(ZSTD_customMem customMem)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3268 { /* CStream and CCtx are now same object */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3269 return ZSTD_createCCtx_advanced(customMem);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3270 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3271
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3272 size_t ZSTD_freeCStream(ZSTD_CStream* zcs)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3273 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3274 return ZSTD_freeCCtx(zcs); /* same object */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3275 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3276
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3277
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3278
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3279 /====== Initialization ======/
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3280
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3281 size_t ZSTD_CStreamInSize(void) { return ZSTD_BLOCKSIZE_MAX; }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3282
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3283 size_t ZSTD_CStreamOutSize(void)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3284 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3285 return ZSTD_compressBound(ZSTD_BLOCKSIZE_MAX) + ZSTD_blockHeaderSize + 4 /* 32-bits hash */ ;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3286 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3287
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3288 static size_t ZSTD_resetCStream_internal(ZSTD_CStream* cctx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3289 const void* const dict, size_t const dictSize, ZSTD_dictContentType_e const dictContentType,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3290 const ZSTD_CDict* const cdict,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3291 ZSTD_CCtx_params params, unsigned long long const pledgedSrcSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3292 {
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3293 DEBUGLOG(4, "ZSTD_resetCStream_internal");
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3294 /* Finalize the compression parameters */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3295 params.cParams = ZSTD_getCParamsFromCCtxParams(&params, pledgedSrcSize, dictSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3296 /* params are supposed to be fully validated at this point */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3297 assert(!ZSTD_isError(ZSTD_checkCParams(params.cParams)));
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3298 assert(!((dict) && (cdict))); /* either dict or cdict, not both */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3299
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3300 FORWARD_IF_ERROR( ZSTD_compressBegin_internal(cctx,
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3301 dict, dictSize, dictContentType, ZSTD_dtlm_fast,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3302 cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3303 params, pledgedSrcSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3304 ZSTDb_buffered) );
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3305
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3306 cctx->inToCompress = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3307 cctx->inBuffPos = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3308 cctx->inBuffTarget = cctx->blockSize
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3309 + (cctx->blockSize == pledgedSrcSize); /* for small input: avoid automatic flush on reaching end of block, since it would require to add a 3-bytes null block to end frame */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3310 cctx->outBuffContentSize = cctx->outBuffFlushedSize = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3311 cctx->streamStage = zcss_load;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3312 cctx->frameEnded = 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3313 return 0; /* ready to go */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3314 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3315
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3316 /* ZSTD_resetCStream():
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3317 * pledgedSrcSize == 0 means "unknown" */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3318 size_t ZSTD_resetCStream(ZSTD_CStream* zcs, unsigned long long pss)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3319 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3320 /* temporary : 0 interpreted as "unknown" during transition period.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3321 * Users willing to specify "unknown" must use ZSTD_CONTENTSIZE_UNKNOWN.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3322 * 0 will be interpreted as "empty" in the future.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3323 */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3324 U64 const pledgedSrcSize = (pss==0) ? ZSTD_CONTENTSIZE_UNKNOWN : pss;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3325 DEBUGLOG(4, "ZSTD_resetCStream: pledgedSrcSize = %u", (unsigned)pledgedSrcSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3326 FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3327 FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3328 return 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3329 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3330
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3331 /*! ZSTD_initCStream_internal() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3332 * Note : for lib/compress only. Used by zstdmt_compress.c.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3333 * Assumption 1 : params are valid
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3334 * Assumption 2 : either dict, or cdict, is defined, not both */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3335 size_t ZSTD_initCStream_internal(ZSTD_CStream* zcs,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3336 const void* dict, size_t dictSize, const ZSTD_CDict* cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3337 ZSTD_CCtx_params params, unsigned long long pledgedSrcSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3338 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3339 DEBUGLOG(4, "ZSTD_initCStream_internal");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3340 FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3341 FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3342 assert(!ZSTD_isError(ZSTD_checkCParams(params.cParams)));
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3343 zcs->requestedParams = params;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3344 assert(!((dict) && (cdict))); /* either dict or cdict, not both */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3345 if (dict) {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3346 FORWARD_IF_ERROR( ZSTD_CCtx_loadDictionary(zcs, dict, dictSize) );
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3347 } else {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3348 /* Dictionary is cleared if !cdict */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3349 FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, cdict) );
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3350 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3351 return 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3352 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3353
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3354 /* ZSTD_initCStream_usingCDict_advanced() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3355 * same as ZSTD_initCStream_usingCDict(), with control over frame parameters */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3356 size_t ZSTD_initCStream_usingCDict_advanced(ZSTD_CStream* zcs,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3357 const ZSTD_CDict* cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3358 ZSTD_frameParameters fParams,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3359 unsigned long long pledgedSrcSize)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3360 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3361 DEBUGLOG(4, "ZSTD_initCStream_usingCDict_advanced");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3362 FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3363 FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3364 zcs->requestedParams.fParams = fParams;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3365 FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, cdict) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3366 return 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3367 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3368
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3369 /* note : cdict must outlive compression session */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3370 size_t ZSTD_initCStream_usingCDict(ZSTD_CStream* zcs, const ZSTD_CDict* cdict)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3371 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3372 DEBUGLOG(4, "ZSTD_initCStream_usingCDict");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3373 FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3374 FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, cdict) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3375 return 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3376 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3377
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3378
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3379 /* ZSTD_initCStream_advanced() :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3380 * pledgedSrcSize must be exact.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3381 * if srcSize is not known at init time, use value ZSTD_CONTENTSIZE_UNKNOWN.
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3382 * dict is loaded with default parameters ZSTD_dm_auto and ZSTD_dlm_byCopy. */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3383 size_t ZSTD_initCStream_advanced(ZSTD_CStream* zcs,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3384 const void* dict, size_t dictSize,
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3385 ZSTD_parameters params, unsigned long long pss)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3386 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3387 /* for compatibility with older programs relying on this behavior.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3388 * Users should now specify ZSTD_CONTENTSIZE_UNKNOWN.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3389 * This line will be removed in the future.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3390 */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3391 U64 const pledgedSrcSize = (pss==0 && params.fParams.contentSizeFlag==0) ? ZSTD_CONTENTSIZE_UNKNOWN : pss;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3392 DEBUGLOG(4, "ZSTD_initCStream_advanced");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3393 FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3394 FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3395 FORWARD_IF_ERROR( ZSTD_checkCParams(params.cParams) );
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3396 zcs->requestedParams = ZSTD_assignParamsToCCtxParams(zcs->requestedParams, params);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3397 FORWARD_IF_ERROR( ZSTD_CCtx_loadDictionary(zcs, dict, dictSize) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3398 return 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3399 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3400
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3401 size_t ZSTD_initCStream_usingDict(ZSTD_CStream* zcs, const void* dict, size_t dictSize, int compressionLevel)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3402 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3403 DEBUGLOG(4, "ZSTD_initCStream_usingDict");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3404 FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3405 FORWARD_IF_ERROR( ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3406 FORWARD_IF_ERROR( ZSTD_CCtx_loadDictionary(zcs, dict, dictSize) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3407 return 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3408 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3409
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3410 size_t ZSTD_initCStream_srcSize(ZSTD_CStream* zcs, int compressionLevel, unsigned long long pss)
30822 b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	3411 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3412 /* temporary : 0 interpreted as "unknown" during transition period.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3413 * Users willing to specify "unknown" must use ZSTD_CONTENTSIZE_UNKNOWN.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3414 * 0 will be interpreted as "empty" in the future.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3415 */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3416 U64 const pledgedSrcSize = (pss==0) ? ZSTD_CONTENTSIZE_UNKNOWN : pss;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3417 DEBUGLOG(4, "ZSTD_initCStream_srcSize");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3418 FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3419 FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, NULL) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3420 FORWARD_IF_ERROR( ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3421 FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3422 return 0;
30822 b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	3423 }
b54a2984cdd4 zstd: vendor python-zstandard 0.6.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30434 diff changeset	3424
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3425 size_t ZSTD_initCStream(ZSTD_CStream* zcs, int compressionLevel)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3426 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3427 DEBUGLOG(4, "ZSTD_initCStream");
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3428 FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3429 FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, NULL) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3430 FORWARD_IF_ERROR( ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel) );
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3431 return 0;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3432 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3433
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3434 /====== Compression ======/
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3435
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3436 static size_t ZSTD_nextInputSizeHint(const ZSTD_CCtx* cctx)
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3437 {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3438 size_t hintInSize = cctx->inBuffTarget - cctx->inBuffPos;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3439 if (hintInSize==0) hintInSize = cctx->blockSize;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3440 return hintInSize;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3441 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3442
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3443 static size_t ZSTD_limitCopy(void* dst, size_t dstCapacity,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3444 const void* src, size_t srcSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3445 {
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3446 size_t const length = MIN(dstCapacity, srcSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3447 if (length) memcpy(dst, src, length);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3448 return length;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3449 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3450
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3451 /** ZSTD_compressStream_generic():
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3452 * internal function for all compressStream() variants
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3453 * non-static, because can be called from zstdmt_compress.c
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3454 * @return : hint size for next input */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3455 static size_t ZSTD_compressStream_generic(ZSTD_CStream* zcs,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3456 ZSTD_outBuffer* output,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3457 ZSTD_inBuffer* input,
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3458 ZSTD_EndDirective const flushMode)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3459 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3460 const char* const istart = (const char*)input->src;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3461 const char* const iend = istart + input->size;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3462 const char* ip = istart + input->pos;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3463 char* const ostart = (char*)output->dst;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3464 char* const oend = ostart + output->size;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3465 char* op = ostart + output->pos;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3466 U32 someMoreWork = 1;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3467
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3468 /* check expectations */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3469 DEBUGLOG(5, "ZSTD_compressStream_generic, flush=%u", (unsigned)flushMode);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3470 assert(zcs->inBuff != NULL);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3471 assert(zcs->inBuffSize > 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3472 assert(zcs->outBuff != NULL);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3473 assert(zcs->outBuffSize > 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3474 assert(output->pos <= output->size);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3475 assert(input->pos <= input->size);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3476
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3477 while (someMoreWork) {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3478 switch(zcs->streamStage)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3479 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3480 case zcss_init:
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3481 RETURN_ERROR(init_missing, "call ZSTD_initCStream() first!");
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3482
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3483 case zcss_load:
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3484 if ( (flushMode == ZSTD_e_end)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3485 && ((size_t)(oend-op) >= ZSTD_compressBound(iend-ip)) /* enough dstCapacity */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3486 && (zcs->inBuffPos == 0) ) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3487 /* shortcut to compression pass directly into output buffer */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3488 size_t const cSize = ZSTD_compressEnd(zcs,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3489 op, oend-op, ip, iend-ip);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3490 DEBUGLOG(4, "ZSTD_compressEnd : cSize=%u", (unsigned)cSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3491 FORWARD_IF_ERROR(cSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3492 ip = iend;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3493 op += cSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3494 zcs->frameEnded = 1;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3495 ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3496 someMoreWork = 0; break;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3497 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3498 /* complete loading into inBuffer */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3499 { size_t const toLoad = zcs->inBuffTarget - zcs->inBuffPos;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3500 size_t const loaded = ZSTD_limitCopy(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3501 zcs->inBuff + zcs->inBuffPos, toLoad,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3502 ip, iend-ip);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3503 zcs->inBuffPos += loaded;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3504 ip += loaded;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3505 if ( (flushMode == ZSTD_e_continue)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3506 && (zcs->inBuffPos < zcs->inBuffTarget) ) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3507 /* not enough input to fill full block : stop here */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3508 someMoreWork = 0; break;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3509 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3510 if ( (flushMode == ZSTD_e_flush)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3511 && (zcs->inBuffPos == zcs->inToCompress) ) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3512 /* empty */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3513 someMoreWork = 0; break;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3514 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3515 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3516 /* compress current block (note : this stage cannot be stopped in the middle) */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3517 DEBUGLOG(5, "stream compression stage (flushMode==%u)", flushMode);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3518 { void* cDst;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3519 size_t cSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3520 size_t const iSize = zcs->inBuffPos - zcs->inToCompress;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3521 size_t oSize = oend-op;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3522 unsigned const lastBlock = (flushMode == ZSTD_e_end) && (ip==iend);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3523 if (oSize >= ZSTD_compressBound(iSize))
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3524 cDst = op; /* compress into output buffer, to skip flush stage */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3525 else
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3526 cDst = zcs->outBuff, oSize = zcs->outBuffSize;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3527 cSize = lastBlock ?
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3528 ZSTD_compressEnd(zcs, cDst, oSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3529 zcs->inBuff + zcs->inToCompress, iSize) :
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3530 ZSTD_compressContinue(zcs, cDst, oSize,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3531 zcs->inBuff + zcs->inToCompress, iSize);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3532 FORWARD_IF_ERROR(cSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3533 zcs->frameEnded = lastBlock;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3534 /* prepare next block */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3535 zcs->inBuffTarget = zcs->inBuffPos + zcs->blockSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3536 if (zcs->inBuffTarget > zcs->inBuffSize)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3537 zcs->inBuffPos = 0, zcs->inBuffTarget = zcs->blockSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3538 DEBUGLOG(5, "inBuffTarget:%u / inBuffSize:%u",
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3539 (unsigned)zcs->inBuffTarget, (unsigned)zcs->inBuffSize);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3540 if (!lastBlock)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3541 assert(zcs->inBuffTarget <= zcs->inBuffSize);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3542 zcs->inToCompress = zcs->inBuffPos;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3543 if (cDst == op) { /* no need to flush */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3544 op += cSize;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3545 if (zcs->frameEnded) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3546 DEBUGLOG(5, "Frame completed directly in outBuffer");
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3547 someMoreWork = 0;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3548 ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3549 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3550 break;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3551 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3552 zcs->outBuffContentSize = cSize;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3553 zcs->outBuffFlushedSize = 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3554 zcs->streamStage = zcss_flush; /* pass-through to flush stage */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3555 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3556 /* fall-through */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3557 case zcss_flush:
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3558 DEBUGLOG(5, "flush stage");
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3559 { size_t const toFlush = zcs->outBuffContentSize - zcs->outBuffFlushedSize;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3560 size_t const flushed = ZSTD_limitCopy(op, (size_t)(oend-op),
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3561 zcs->outBuff + zcs->outBuffFlushedSize, toFlush);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3562 DEBUGLOG(5, "toFlush: %u into %u ==> flushed: %u",
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3563 (unsigned)toFlush, (unsigned)(oend-op), (unsigned)flushed);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3564 op += flushed;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3565 zcs->outBuffFlushedSize += flushed;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3566 if (toFlush!=flushed) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3567 /* flush not fully completed, presumably because dst is too small */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3568 assert(op==oend);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3569 someMoreWork = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3570 break;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3571 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3572 zcs->outBuffContentSize = zcs->outBuffFlushedSize = 0;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3573 if (zcs->frameEnded) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3574 DEBUGLOG(5, "Frame completed on flush");
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3575 someMoreWork = 0;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3576 ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3577 break;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3578 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3579 zcs->streamStage = zcss_load;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3580 break;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3581 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3582
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3583 default: /* impossible */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3584 assert(0);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3585 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3586 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3587
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3588 input->pos = ip - istart;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3589 output->pos = op - ostart;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3590 if (zcs->frameEnded) return 0;
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3591 return ZSTD_nextInputSizeHint(zcs);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3592 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3593
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3594 static size_t ZSTD_nextInputSizeHint_MTorST(const ZSTD_CCtx* cctx)
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3595 {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3596 #ifdef ZSTD_MULTITHREAD
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3597 if (cctx->appliedParams.nbWorkers >= 1) {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3598 assert(cctx->mtctx != NULL);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3599 return ZSTDMT_nextInputSizeHint(cctx->mtctx);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3600 }
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3601 #endif
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3602 return ZSTD_nextInputSizeHint(cctx);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3603
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3604 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3605
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3606 size_t ZSTD_compressStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output, ZSTD_inBuffer* input)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3607 {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3608 FORWARD_IF_ERROR( ZSTD_compressStream2(zcs, output, input, ZSTD_e_continue) );
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3609 return ZSTD_nextInputSizeHint_MTorST(zcs);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3610 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3611
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3612
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3613 size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3614 ZSTD_outBuffer* output,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3615 ZSTD_inBuffer* input,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3616 ZSTD_EndDirective endOp)
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3617 {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3618 DEBUGLOG(5, "ZSTD_compressStream2, endOp=%u ", (unsigned)endOp);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3619 /* check conditions */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3620 RETURN_ERROR_IF(output->pos > output->size, GENERIC);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3621 RETURN_ERROR_IF(input->pos > input->size, GENERIC);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3622 assert(cctx!=NULL);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3623
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3624 /* transparent initialization stage */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3625 if (cctx->streamStage == zcss_init) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3626 ZSTD_CCtx_params params = cctx->requestedParams;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3627 ZSTD_prefixDict const prefixDict = cctx->prefixDict;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3628 FORWARD_IF_ERROR( ZSTD_initLocalDict(cctx) ); /* Init the local dict if present. */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3629 memset(&cctx->prefixDict, 0, sizeof(cctx->prefixDict)); /* single usage */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3630 assert(prefixDict.dict==NULL \|\| cctx->cdict==NULL); /* only one can be set */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3631 DEBUGLOG(4, "ZSTD_compressStream2 : transparent init stage");
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3632 if (endOp == ZSTD_e_end) cctx->pledgedSrcSizePlusOne = input->size + 1; /* auto-fix pledgedSrcSize */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3633 params.cParams = ZSTD_getCParamsFromCCtxParams(
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3634 &cctx->requestedParams, cctx->pledgedSrcSizePlusOne-1, 0 /dictSize/);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3635
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3636
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3637 #ifdef ZSTD_MULTITHREAD
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3638 if ((cctx->pledgedSrcSizePlusOne-1) <= ZSTDMT_JOBSIZE_MIN) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3639 params.nbWorkers = 0; /* do not invoke multi-threading when src size is too small */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3640 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3641 if (params.nbWorkers > 0) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3642 /* mt context creation */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3643 if (cctx->mtctx == NULL) {
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3644 DEBUGLOG(4, "ZSTD_compressStream2: creating new mtctx for nbWorkers=%u",
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3645 params.nbWorkers);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3646 cctx->mtctx = ZSTDMT_createCCtx_advanced(params.nbWorkers, cctx->customMem);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3647 RETURN_ERROR_IF(cctx->mtctx == NULL, memory_allocation);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3648 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3649 /* mt compression */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3650 DEBUGLOG(4, "call ZSTDMT_initCStream_internal as nbWorkers=%u", params.nbWorkers);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3651 FORWARD_IF_ERROR( ZSTDMT_initCStream_internal(
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3652 cctx->mtctx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3653 prefixDict.dict, prefixDict.dictSize, ZSTD_dct_rawContent,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3654 cctx->cdict, params, cctx->pledgedSrcSizePlusOne-1) );
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3655 cctx->streamStage = zcss_load;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3656 cctx->appliedParams.nbWorkers = params.nbWorkers;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3657 } else
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3658 #endif
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3659 { FORWARD_IF_ERROR( ZSTD_resetCStream_internal(cctx,
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3660 prefixDict.dict, prefixDict.dictSize, prefixDict.dictContentType,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3661 cctx->cdict,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3662 params, cctx->pledgedSrcSizePlusOne-1) );
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3663 assert(cctx->streamStage == zcss_load);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3664 assert(cctx->appliedParams.nbWorkers == 0);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3665 } }
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3666 /* end of transparent initialization stage */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3667
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3668 /* compression stage */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3669 #ifdef ZSTD_MULTITHREAD
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3670 if (cctx->appliedParams.nbWorkers > 0) {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3671 int const forceMaxProgress = (endOp == ZSTD_e_flush \|\| endOp == ZSTD_e_end);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3672 size_t flushMin;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3673 assert(forceMaxProgress \|\| endOp == ZSTD_e_continue /* Protection for a new flush type */);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3674 if (cctx->cParamsChanged) {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3675 ZSTDMT_updateCParams_whileCompressing(cctx->mtctx, &cctx->requestedParams);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3676 cctx->cParamsChanged = 0;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3677 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3678 do {
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3679 flushMin = ZSTDMT_compressStream_generic(cctx->mtctx, output, input, endOp);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3680 if ( ZSTD_isError(flushMin)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3681 \|\| (endOp == ZSTD_e_end && flushMin == 0) ) { /* compression completed */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3682 ZSTD_CCtx_reset(cctx, ZSTD_reset_session_only);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3683 }
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3684 FORWARD_IF_ERROR(flushMin);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3685 } while (forceMaxProgress && flushMin != 0 && output->pos < output->size);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3686 DEBUGLOG(5, "completed ZSTD_compressStream2 delegating to ZSTDMT_compressStream_generic");
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3687 /* Either we don't require maximum forward progress, we've finished the
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3688 * flush, or we are out of output space.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3689 */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3690 assert(!forceMaxProgress \|\| flushMin == 0 \|\| output->pos == output->size);
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3691 return flushMin;
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3692 }
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3693 #endif
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3694 FORWARD_IF_ERROR( ZSTD_compressStream_generic(cctx, output, input, endOp) );
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3695 DEBUGLOG(5, "completed ZSTD_compressStream2");
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3696 return cctx->outBuffContentSize - cctx->outBuffFlushedSize; /* remaining to flush */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3697 }
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3698
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3699 size_t ZSTD_compressStream2_simpleArgs (
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3700 ZSTD_CCtx* cctx,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3701 void* dst, size_t dstCapacity, size_t* dstPos,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3702 const void* src, size_t srcSize, size_t* srcPos,
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3703 ZSTD_EndDirective endOp)
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3704 {
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3705 ZSTD_outBuffer output = { dst, dstCapacity, *dstPos };
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3706 ZSTD_inBuffer input = { src, srcSize, *srcPos };
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3707 /* ZSTD_compressStream2() will check validity of dstPos and srcPos */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3708 size_t const cErr = ZSTD_compressStream2(cctx, &output, &input, endOp);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3709 *dstPos = output.pos;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3710 *srcPos = input.pos;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3711 return cErr;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3712 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3713
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3714 size_t ZSTD_compress2(ZSTD_CCtx* cctx,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3715 void* dst, size_t dstCapacity,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3716 const void* src, size_t srcSize)
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3717 {
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3718 ZSTD_CCtx_reset(cctx, ZSTD_reset_session_only);
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3719 { size_t oPos = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3720 size_t iPos = 0;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3721 size_t const result = ZSTD_compressStream2_simpleArgs(cctx,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3722 dst, dstCapacity, &oPos,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3723 src, srcSize, &iPos,
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3724 ZSTD_e_end);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3725 FORWARD_IF_ERROR(result);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3726 if (result != 0) { /* compression not completed, due to lack of output space */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3727 assert(oPos == dstCapacity);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3728 RETURN_ERROR(dstSize_tooSmall);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3729 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3730 assert(iPos == srcSize); /* all input is expected consumed */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3731 return oPos;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3732 }
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3733 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3734
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3735 /====== Finalize ======/
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3736
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3737 /*! ZSTD_flushStream() :
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3738 * @return : amount of data remaining to flush */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3739 size_t ZSTD_flushStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3740 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3741 ZSTD_inBuffer input = { NULL, 0, 0 };
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3742 return ZSTD_compressStream2(zcs, output, &input, ZSTD_e_flush);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3743 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3744
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3745
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3746 size_t ZSTD_endStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output)
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3747 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3748 ZSTD_inBuffer input = { NULL, 0, 0 };
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3749 size_t const remainingToFlush = ZSTD_compressStream2(zcs, output, &input, ZSTD_e_end);
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3750 FORWARD_IF_ERROR( remainingToFlush );
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3751 if (zcs->appliedParams.nbWorkers > 0) return remainingToFlush; /* minimal estimation */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3752 /* single thread mode : attempt to calculate remaining to flush more precisely */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3753 { size_t const lastBlockSize = zcs->frameEnded ? 0 : ZSTD_BLOCKHEADERSIZE;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3754 size_t const checksumSize = (size_t)(zcs->frameEnded ? 0 : zcs->appliedParams.fParams.checksumFlag * 4);
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3755 size_t const toFlush = remainingToFlush + lastBlockSize + checksumSize;
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3756 DEBUGLOG(4, "ZSTD_endStream : remaining to flush : %u", (unsigned)toFlush);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3757 return toFlush;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3758 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3759 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3760
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3761
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3762 /-===== Pre-defined compression levels =====-/
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3763
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3764 #define ZSTD_MAX_CLEVEL 22
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3765 int ZSTD_maxCLevel(void) { return ZSTD_MAX_CLEVEL; }
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3766 int ZSTD_minCLevel(void) { return (int)-ZSTD_TARGETLENGTH_MAX; }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3767
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3768 static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEVEL+1] = {
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3769 { /* "default" - for any srcSize > 256 KB */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3770 /* W, C, H, S, L, TL, strat */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3771 { 19, 12, 13, 1, 6, 1, ZSTD_fast }, /* base for negative levels */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3772 { 19, 13, 14, 1, 7, 0, ZSTD_fast }, /* level 1 */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3773 { 20, 15, 16, 1, 6, 0, ZSTD_fast }, /* level 2 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3774 { 21, 16, 17, 1, 5, 1, ZSTD_dfast }, /* level 3 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3775 { 21, 18, 18, 1, 5, 1, ZSTD_dfast }, /* level 4 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3776 { 21, 18, 19, 2, 5, 2, ZSTD_greedy }, /* level 5 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3777 { 21, 19, 19, 3, 5, 4, ZSTD_greedy }, /* level 6 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3778 { 21, 19, 19, 3, 5, 8, ZSTD_lazy }, /* level 7 */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3779 { 21, 19, 19, 3, 5, 16, ZSTD_lazy2 }, /* level 8 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3780 { 21, 19, 20, 4, 5, 16, ZSTD_lazy2 }, /* level 9 */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3781 { 22, 20, 21, 4, 5, 16, ZSTD_lazy2 }, /* level 10 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3782 { 22, 21, 22, 4, 5, 16, ZSTD_lazy2 }, /* level 11 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3783 { 22, 21, 22, 5, 5, 16, ZSTD_lazy2 }, /* level 12 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3784 { 22, 21, 22, 5, 5, 32, ZSTD_btlazy2 }, /* level 13 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3785 { 22, 22, 23, 5, 5, 32, ZSTD_btlazy2 }, /* level 14 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3786 { 22, 23, 23, 6, 5, 32, ZSTD_btlazy2 }, /* level 15 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3787 { 22, 22, 22, 5, 5, 48, ZSTD_btopt }, /* level 16 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3788 { 23, 23, 22, 5, 4, 64, ZSTD_btopt }, /* level 17 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3789 { 23, 23, 22, 6, 3, 64, ZSTD_btultra }, /* level 18 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3790 { 23, 24, 22, 7, 3,256, ZSTD_btultra2}, /* level 19 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3791 { 25, 25, 23, 7, 3,256, ZSTD_btultra2}, /* level 20 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3792 { 26, 26, 24, 7, 3,512, ZSTD_btultra2}, /* level 21 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3793 { 27, 27, 25, 9, 3,999, ZSTD_btultra2}, /* level 22 */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3794 },
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3795 { /* for srcSize <= 256 KB */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3796 /* W, C, H, S, L, T, strat */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3797 { 18, 12, 13, 1, 5, 1, ZSTD_fast }, /* base for negative levels */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3798 { 18, 13, 14, 1, 6, 0, ZSTD_fast }, /* level 1 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3799 { 18, 14, 14, 1, 5, 1, ZSTD_dfast }, /* level 2 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3800 { 18, 16, 16, 1, 4, 1, ZSTD_dfast }, /* level 3 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3801 { 18, 16, 17, 2, 5, 2, ZSTD_greedy }, /* level 4.*/
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3802 { 18, 18, 18, 3, 5, 2, ZSTD_greedy }, /* level 5.*/
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3803 { 18, 18, 19, 3, 5, 4, ZSTD_lazy }, /* level 6.*/
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3804 { 18, 18, 19, 4, 4, 4, ZSTD_lazy }, /* level 7 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3805 { 18, 18, 19, 4, 4, 8, ZSTD_lazy2 }, /* level 8 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3806 { 18, 18, 19, 5, 4, 8, ZSTD_lazy2 }, /* level 9 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3807 { 18, 18, 19, 6, 4, 8, ZSTD_lazy2 }, /* level 10 */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3808 { 18, 18, 19, 5, 4, 12, ZSTD_btlazy2 }, /* level 11.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3809 { 18, 19, 19, 7, 4, 12, ZSTD_btlazy2 }, /* level 12.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3810 { 18, 18, 19, 4, 4, 16, ZSTD_btopt }, /* level 13 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3811 { 18, 18, 19, 4, 3, 32, ZSTD_btopt }, /* level 14.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3812 { 18, 18, 19, 6, 3,128, ZSTD_btopt }, /* level 15.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3813 { 18, 19, 19, 6, 3,128, ZSTD_btultra }, /* level 16.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3814 { 18, 19, 19, 8, 3,256, ZSTD_btultra }, /* level 17.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3815 { 18, 19, 19, 6, 3,128, ZSTD_btultra2}, /* level 18.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3816 { 18, 19, 19, 8, 3,256, ZSTD_btultra2}, /* level 19.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3817 { 18, 19, 19, 10, 3,512, ZSTD_btultra2}, /* level 20.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3818 { 18, 19, 19, 12, 3,512, ZSTD_btultra2}, /* level 21.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3819 { 18, 19, 19, 13, 3,999, ZSTD_btultra2}, /* level 22.*/
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3820 },
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3821 { /* for srcSize <= 128 KB */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3822 /* W, C, H, S, L, T, strat */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3823 { 17, 12, 12, 1, 5, 1, ZSTD_fast }, /* base for negative levels */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3824 { 17, 12, 13, 1, 6, 0, ZSTD_fast }, /* level 1 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3825 { 17, 13, 15, 1, 5, 0, ZSTD_fast }, /* level 2 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3826 { 17, 15, 16, 2, 5, 1, ZSTD_dfast }, /* level 3 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3827 { 17, 17, 17, 2, 4, 1, ZSTD_dfast }, /* level 4 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3828 { 17, 16, 17, 3, 4, 2, ZSTD_greedy }, /* level 5 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3829 { 17, 17, 17, 3, 4, 4, ZSTD_lazy }, /* level 6 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3830 { 17, 17, 17, 3, 4, 8, ZSTD_lazy2 }, /* level 7 */
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3831 { 17, 17, 17, 4, 4, 8, ZSTD_lazy2 }, /* level 8 */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3832 { 17, 17, 17, 5, 4, 8, ZSTD_lazy2 }, /* level 9 */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3833 { 17, 17, 17, 6, 4, 8, ZSTD_lazy2 }, /* level 10 */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3834 { 17, 17, 17, 5, 4, 8, ZSTD_btlazy2 }, /* level 11 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3835 { 17, 18, 17, 7, 4, 12, ZSTD_btlazy2 }, /* level 12 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3836 { 17, 18, 17, 3, 4, 12, ZSTD_btopt }, /* level 13.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3837 { 17, 18, 17, 4, 3, 32, ZSTD_btopt }, /* level 14.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3838 { 17, 18, 17, 6, 3,256, ZSTD_btopt }, /* level 15.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3839 { 17, 18, 17, 6, 3,128, ZSTD_btultra }, /* level 16.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3840 { 17, 18, 17, 8, 3,256, ZSTD_btultra }, /* level 17.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3841 { 17, 18, 17, 10, 3,512, ZSTD_btultra }, /* level 18.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3842 { 17, 18, 17, 5, 3,256, ZSTD_btultra2}, /* level 19.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3843 { 17, 18, 17, 7, 3,512, ZSTD_btultra2}, /* level 20.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3844 { 17, 18, 17, 9, 3,512, ZSTD_btultra2}, /* level 21.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3845 { 17, 18, 17, 11, 3,999, ZSTD_btultra2}, /* level 22.*/
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3846 },
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3847 { /* for srcSize <= 16 KB */
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3848 /* W, C, H, S, L, T, strat */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3849 { 14, 12, 13, 1, 5, 1, ZSTD_fast }, /* base for negative levels */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3850 { 14, 14, 15, 1, 5, 0, ZSTD_fast }, /* level 1 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3851 { 14, 14, 15, 1, 4, 0, ZSTD_fast }, /* level 2 */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3852 { 14, 14, 15, 2, 4, 1, ZSTD_dfast }, /* level 3 */
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3853 { 14, 14, 14, 4, 4, 2, ZSTD_greedy }, /* level 4 */
40121 73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3854 { 14, 14, 14, 3, 4, 4, ZSTD_lazy }, /* level 5.*/
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3855 { 14, 14, 14, 4, 4, 8, ZSTD_lazy2 }, /* level 6 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3856 { 14, 14, 14, 6, 4, 8, ZSTD_lazy2 }, /* level 7 */
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3857 { 14, 14, 14, 8, 4, 8, ZSTD_lazy2 }, /* level 8.*/
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3858 { 14, 15, 14, 5, 4, 8, ZSTD_btlazy2 }, /* level 9.*/
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3859 { 14, 15, 14, 9, 4, 8, ZSTD_btlazy2 }, /* level 10.*/
73fef626dae3 zstandard: vendor python-zstandard 0.10.1 Gregory Szorc <gregory.szorc@gmail.com> parents: 37495 diff changeset	3860 { 14, 15, 14, 3, 4, 12, ZSTD_btopt }, /* level 11.*/
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3861 { 14, 15, 14, 4, 3, 24, ZSTD_btopt }, /* level 12.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3862 { 14, 15, 14, 5, 3, 32, ZSTD_btultra }, /* level 13.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3863 { 14, 15, 15, 6, 3, 64, ZSTD_btultra }, /* level 14.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3864 { 14, 15, 15, 7, 3,256, ZSTD_btultra }, /* level 15.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3865 { 14, 15, 15, 5, 3, 48, ZSTD_btultra2}, /* level 16.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3866 { 14, 15, 15, 6, 3,128, ZSTD_btultra2}, /* level 17.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3867 { 14, 15, 15, 7, 3,256, ZSTD_btultra2}, /* level 18.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3868 { 14, 15, 15, 8, 3,256, ZSTD_btultra2}, /* level 19.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3869 { 14, 15, 15, 8, 3,512, ZSTD_btultra2}, /* level 20.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3870 { 14, 15, 15, 9, 3,512, ZSTD_btultra2}, /* level 21.*/
675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3871 { 14, 15, 15, 10, 3,999, ZSTD_btultra2}, /* level 22.*/
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3872 },
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3873 };
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3874
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3875 /*! ZSTD_getCParams() :
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3876 * @return ZSTD_compressionParameters structure for a selected compression level, srcSize and dictSize.
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3877 * Size values are optional, provide 0 if not known or unused */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3878 ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, unsigned long long srcSizeHint, size_t dictSize)
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3879 {
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3880 size_t const addedSize = srcSizeHint ? 0 : 500;
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3881 U64 const rSize = srcSizeHint+dictSize ? srcSizeHint+dictSize+addedSize : ZSTD_CONTENTSIZE_UNKNOWN; /* intentional overflow for srcSizeHint == ZSTD_CONTENTSIZE_UNKNOWN */
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3882 U32 const tableID = (rSize <= 256 KB) + (rSize <= 128 KB) + (rSize <= 16 KB);
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3883 int row = compressionLevel;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3884 DEBUGLOG(5, "ZSTD_getCParams (cLevel=%i)", compressionLevel);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3885 if (compressionLevel == 0) row = ZSTD_CLEVEL_DEFAULT; /* 0 == default */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3886 if (compressionLevel < 0) row = 0; /* entry 0 is baseline for fast mode */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3887 if (compressionLevel > ZSTD_MAX_CLEVEL) row = ZSTD_MAX_CLEVEL;
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3888 { ZSTD_compressionParameters cp = ZSTD_defaultCParameters[tableID][row];
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3889 if (compressionLevel < 0) cp.targetLength = (unsigned)(-compressionLevel); /* acceleration factor */
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3890 return ZSTD_adjustCParams_internal(cp, srcSizeHint, dictSize); /* refine parameters based on srcSize & dictSize */
42070 675775c33ab6 zstandard: vendor python-zstandard 0.11 Gregory Szorc <gregory.szorc@gmail.com> parents: 40121 diff changeset	3891 }
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3892 }
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3893
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3894 /*! ZSTD_getParams() :
42937 69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3895 * same idea as ZSTD_getCParams()
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3896 * @return a `ZSTD_parameters` structure (instead of `ZSTD_compressionParameters`).
69de49c4e39c zstandard: vendor python-zstandard 0.12 Gregory Szorc <gregory.szorc@gmail.com> parents: 42070 diff changeset	3897 * Fields of `ZSTD_frameParameters` are set to default values */
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3898 ZSTD_parameters ZSTD_getParams(int compressionLevel, unsigned long long srcSizeHint, size_t dictSize) {
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3899 ZSTD_parameters params;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3900 ZSTD_compressionParameters const cParams = ZSTD_getCParams(compressionLevel, srcSizeHint, dictSize);
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3901 DEBUGLOG(5, "ZSTD_getParams (cLevel=%i)", compressionLevel);
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3902 memset(&params, 0, sizeof(params));
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3903 params.cParams = cParams;
37495 b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0 Gregory Szorc <gregory.szorc@gmail.com> parents: 30895 diff changeset	3904 params.fParams.contentSizeFlag = 1;
30434 2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3905 return params;
2e484bdea8c4 zstd: vendor zstd 1.1.1 Gregory Szorc <gregory.szorc@gmail.com> parents: diff changeset	3906 }

Mercurial > public > mercurial-scm > hg

annotate contrib/python-zstandard/zstd/compress/zstd_compress.c @ 42937:69de49c4e39c