AuroraMiddleware/zstd
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introduced ZSTD_DEAFULT_CLEVEL for (compressionLevel<=0)

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inikep 2016-04-15 13:44:46 +02:00
parent 4b3c5eed99
commit 2c5eeea635
1 changed files with 4 additions and 2 deletions
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6
lib/zstd_compress.c
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@ -2431,7 +2431,8 @@ size_t ZSTD_compress(void* dst, size_t dstCapacity, const void* src, size_t srcS
/*-===== Pre-defined compression levels =====-*/
#define ZSTD_MAX_CLEVEL 22
#define ZSTD_DEAFULT_CLEVEL 5
#define ZSTD_MAX_CLEVEL 22
unsigned ZSTD_maxCLevel(void) { return ZSTD_MAX_CLEVEL; }
static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEVEL+1] = {
@ -2550,7 +2551,8 @@ ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, U64 srcSize, si
size_t const addedSize = srcSize ? 0 : 500;
U64 const rSize = srcSize+dictSize ? srcSize+dictSize+addedSize : (U64)-1;
U32 const tableID = (rSize <= 256 KB) + (rSize <= 128 KB) + (rSize <= 16 KB); /* intentional underflow for srcSizeHint == 0 */
if (compressionLevel<=0) compressionLevel = 1;
if (compressionLevel < 0) compressionLevel = ZSTD_DEAFULT_CLEVEL;
if (compressionLevel==0) compressionLevel = 1;
if (compressionLevel > ZSTD_MAX_CLEVEL) compressionLevel = ZSTD_MAX_CLEVEL;
cp = ZSTD_defaultCParameters[tableID][compressionLevel];
if (MEM_32bits()) { /* auto-correction, for 32-bits mode */