facebook/zstd
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Negating bool, updating bool on inner branches

Browse Source
This commit is contained in:
Bimba Shrestha 2019-11-26 12:17:43 -08:00
parent 707a12c419
commit d4e17d0776
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
lib/compress/zstd_compress.c
View File

@ -2457,7 +2457,7 @@ static size_t ZSTD_compressBlock_targetCBlockSize(ZSTD_CCtx* zc,
const void* src, size_t srcSize,
U32 lastBlock) {
size_t cSize = 0;
int usingNoCompressSuperBlock = 0;
int compressSuperBlock = 1;
DEBUGLOG(5, "ZSTD_compressBlock_targetCBlockSize (dstCapacity=%u, dictLimit=%u, nextToUpdate=%u, srcSize=%zu)",
(unsigned)dstCapacity, (unsigned)zc->blockState.matchState.window.dictLimit, (unsigned)zc->blockState.matchState.nextToUpdate, srcSize);
@ -2473,7 +2473,7 @@ static size_t ZSTD_compressBlock_targetCBlockSize(ZSTD_CCtx* zc,
*/
if (cSize == 0) {
cSize = ZSTD_noCompressSuperBlock(dst, dstCapacity, src, srcSize, zc->appliedParams.targetCBlockSize, lastBlock);
usingNoCompressSuperBlock = 1;
compressSuperBlock = 0;
/* In compression, there is an assumption that a compressed block is always
* within the size of ZSTD_compressBound(). However, SuperBlock compression
* can exceed the limit due to overhead of headers from SubBlocks.
@ -2491,6 +2491,7 @@ static size_t ZSTD_compressBlock_targetCBlockSize(ZSTD_CCtx* zc,
/* If ZSTD_noCompressSuperBlock fails with dstSize_tooSmall,
* compress normally.
*/
compressSuperBlock = 1;
cSize = ZSTD_compressSequences(&zc->seqStore,
&zc->blockState.prevCBlock->entropy, &zc->blockState.nextCBlock->entropy,
&zc->appliedParams,
@ -2501,6 +2502,7 @@ static size_t ZSTD_compressBlock_targetCBlockSize(ZSTD_CCtx* zc,
FORWARD_IF_ERROR(cSize);
if (cSize == 0) {
compressSuperBlock = 0;
/* If compressSequences didn't work, we just output a regular
* uncompressed block */
cSize = ZSTD_noCompressBlock(dst, dstCapacity, src, srcSize, lastBlock);
@ -2513,7 +2515,7 @@ static size_t ZSTD_compressBlock_targetCBlockSize(ZSTD_CCtx* zc,
}
}
if (!ZSTD_isError(cSize) && !usingNoCompressSuperBlock) {
if (!ZSTD_isError(cSize) && compressSuperBlock) {
/* confirm repcodes and entropy tables when emitting a compressed block */
ZSTD_compressedBlockState_t* const tmp = zc->blockState.prevCBlock;
zc->blockState.prevCBlock = zc->blockState.nextCBlock;