diff options
Diffstat (limited to 'lib/legacy/zstd_legacy.h')
| -rw-r--r-- | lib/legacy/zstd_legacy.h | 54 |
1 files changed, 42 insertions, 12 deletions
diff --git a/lib/legacy/zstd_legacy.h b/lib/legacy/zstd_legacy.h index 5893cb9657e62..e5b383ee4c0ce 100644 --- a/lib/legacy/zstd_legacy.h +++ b/lib/legacy/zstd_legacy.h @@ -20,7 +20,7 @@ extern "C" { ***************************************/ #include "mem.h" /* MEM_STATIC */ #include "error_private.h" /* ERROR */ -#include "zstd.h" /* ZSTD_inBuffer, ZSTD_outBuffer */ +#include "zstd_internal.h" /* ZSTD_inBuffer, ZSTD_outBuffer, ZSTD_frameSizeInfo */ #if !defined (ZSTD_LEGACY_SUPPORT) || (ZSTD_LEGACY_SUPPORT == 0) # undef ZSTD_LEGACY_SUPPORT @@ -178,43 +178,73 @@ MEM_STATIC size_t ZSTD_decompressLegacy( } } -MEM_STATIC size_t ZSTD_findFrameCompressedSizeLegacy(const void *src, - size_t compressedSize) +MEM_STATIC ZSTD_frameSizeInfo ZSTD_findFrameSizeInfoLegacy(const void *src, size_t srcSize) { - U32 const version = ZSTD_isLegacy(src, compressedSize); + ZSTD_frameSizeInfo frameSizeInfo; + U32 const version = ZSTD_isLegacy(src, srcSize); switch(version) { #if (ZSTD_LEGACY_SUPPORT <= 1) case 1 : - return ZSTDv01_findFrameCompressedSize(src, compressedSize); + ZSTDv01_findFrameSizeInfoLegacy(src, srcSize, + &frameSizeInfo.compressedSize, + &frameSizeInfo.decompressedBound); + break; #endif #if (ZSTD_LEGACY_SUPPORT <= 2) case 2 : - return ZSTDv02_findFrameCompressedSize(src, compressedSize); + ZSTDv02_findFrameSizeInfoLegacy(src, srcSize, + &frameSizeInfo.compressedSize, + &frameSizeInfo.decompressedBound); + break; #endif #if (ZSTD_LEGACY_SUPPORT <= 3) case 3 : - return ZSTDv03_findFrameCompressedSize(src, compressedSize); + ZSTDv03_findFrameSizeInfoLegacy(src, srcSize, + &frameSizeInfo.compressedSize, + &frameSizeInfo.decompressedBound); + break; #endif #if (ZSTD_LEGACY_SUPPORT <= 4) case 4 : - return ZSTDv04_findFrameCompressedSize(src, compressedSize); + ZSTDv04_findFrameSizeInfoLegacy(src, srcSize, + &frameSizeInfo.compressedSize, + &frameSizeInfo.decompressedBound); + break; #endif #if (ZSTD_LEGACY_SUPPORT <= 5) case 5 : - return ZSTDv05_findFrameCompressedSize(src, compressedSize); + ZSTDv05_findFrameSizeInfoLegacy(src, srcSize, + &frameSizeInfo.compressedSize, + &frameSizeInfo.decompressedBound); + break; #endif #if (ZSTD_LEGACY_SUPPORT <= 6) case 6 : - return ZSTDv06_findFrameCompressedSize(src, compressedSize); + ZSTDv06_findFrameSizeInfoLegacy(src, srcSize, + &frameSizeInfo.compressedSize, + &frameSizeInfo.decompressedBound); + break; #endif #if (ZSTD_LEGACY_SUPPORT <= 7) case 7 : - return ZSTDv07_findFrameCompressedSize(src, compressedSize); + ZSTDv07_findFrameSizeInfoLegacy(src, srcSize, + &frameSizeInfo.compressedSize, + &frameSizeInfo.decompressedBound); + break; #endif default : - return ERROR(prefix_unknown); + frameSizeInfo.compressedSize = ERROR(prefix_unknown); + frameSizeInfo.decompressedBound = ZSTD_CONTENTSIZE_ERROR; + break; } + return frameSizeInfo; +} + +MEM_STATIC size_t ZSTD_findFrameCompressedSizeLegacy(const void *src, size_t srcSize) +{ + ZSTD_frameSizeInfo frameSizeInfo = ZSTD_findFrameSizeInfoLegacy(src, srcSize); + return frameSizeInfo.compressedSize; } MEM_STATIC size_t ZSTD_freeLegacyStreamContext(void* legacyContext, U32 version) |