Implement mergeGeneratedSequences()
parent
51abd58208
commit
779df995c6
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@ -2551,7 +2551,7 @@ static void ZSTD_copyBlockSequences(ZSTD_CCtx* zc)
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}
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size_t ZSTD_generateSequences(ZSTD_CCtx* zc, ZSTD_Sequence* outSeqs,
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size_t outSeqsSize, const void* src, size_t srcSize, ZSTD_sequenceFormat_e format)
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size_t outSeqsSize, const void* src, size_t srcSize)
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{
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const size_t dstCapacity = ZSTD_compressBound(srcSize);
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void* dst = ZSTD_customMalloc(dstCapacity, ZSTD_defaultCMem);
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@ -2567,29 +2567,25 @@ size_t ZSTD_generateSequences(ZSTD_CCtx* zc, ZSTD_Sequence* outSeqs,
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ZSTD_compress2(zc, dst, dstCapacity, src, srcSize);
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ZSTD_customFree(dst, ZSTD_defaultCMem);
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if (format == ZSTD_sf_noBlockDelimiters) {
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/* Remove all block delimiters and append them to the next sequence's literals
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* and do not emit last literals at all
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*/
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size_t in = 0;
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size_t out = 0;
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for (; in < zc->seqCollector.seqIndex; ++in) {
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if (seqCollector.seqStart[in].offset == 0 && seqCollector.seqStart[in].matchLength == 0) {
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if (in != zc->seqCollector.seqIndex - 1) {
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seqCollector.seqStart[in+1].litLength += seqCollector.seqStart[in].litLength;
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}
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} else {
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seqCollector.seqStart[out] = seqCollector.seqStart[in];
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++out;
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}
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}
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zc->seqCollector.seqIndex = out;
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}
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return zc->seqCollector.seqIndex;
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}
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size_t ZSTD_mergeGeneratedSequences(ZSTD_Sequence* sequences, size_t seqsSize) {
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size_t in = 0;
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size_t out = 0;
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for (; in < seqsSize; ++in) {
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if (sequences[in].offset == 0 && sequences[in].matchLength == 0) {
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if (in != seqsSize - 1) {
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sequences[in+1].litLength += sequences[in].litLength;
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}
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} else {
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sequences[out] = sequences[in];
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++out;
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}
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}
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return out;
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}
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/* Returns true if the given block is a RLE block */
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static int ZSTD_isRLE(const BYTE *ip, size_t length) {
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size_t i;
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