ulib/lz4/lz4frame.c

277 * The most important rule is that dstBuffer MUST be large enough (dstMaxSize) to ensure compression completion even in worst case.
281 * The result of the function is the number of bytes written into dstBuffer.
284 size_t LZ4F_compressFrame(void* dstBuffer, size_t dstMaxSize, const void* srcBuffer, size_t srcSize, const LZ4F_preferences_t* preferencesPtr)
291     BYTE* const dstStart = (BYTE*) dstBuffer;
324     errorCode = LZ4F_compressBegin(&cctxI, dstBuffer, dstMaxSize, &prefs);  /* write header */
387 * will write the frame header into dstBuffer.
388 * dstBuffer must be large enough to accommodate a header (dstMaxSize). Maximum header size is LZ4F_MAXHEADERFRAME_SIZE bytes.
389 * The result of the function is the number of bytes written into dstBuffer for the header
392 size_t LZ4F_compressBegin(LZ4F_compressionContext_t compressionContext, void* dstBuffer, size_t dstMaxSize, const LZ4F_preferences_t* preferencesPtr)
396     BYTE* const dstStart = (BYTE*)dstBuffer;
555 * The most important rule is that dstBuffer MUST be large enough (dstMaxSize) to ensure compression completion even in worst case.
559 * The result of the function is the number of bytes written into dstBuffer : it can be zero, meaning input data was just buffered.
562 size_t LZ4F_compressUpdate(LZ4F_compressionContext_t compressionContext, void* dstBuffer, size_t dstMaxSize, const void* srcBuffer, size_t srcSize, const LZ4F_compressOptions_t* compressOptionsPtr)
569     BYTE* const dstStart = (BYTE*)dstBuffer;
668 * The result of the function is the number of bytes written into dstBuffer
673 size_t LZ4F_flush(LZ4F_compressionContext_t compressionContext, void* dstBuffer, size_t dstMaxSize, const LZ4F_compressOptions_t* compressOptionsPtr)
676     BYTE* const dstStart = (BYTE*)dstBuffer;
709 * The result of the function is the number of bytes written into dstBuffer (necessarily >= 4 (endMark size))
714 size_t LZ4F_compressEnd(LZ4F_compressionContext_t compressionContext, void* dstBuffer, size_t dstMaxSize, const LZ4F_compressOptions_t* compressOptionsPtr)
717     BYTE* const dstStart = (BYTE*)dstBuffer;
721     errorCode = LZ4F_flush(compressionContext, dstBuffer, dstMaxSize, compressOptionsPtr);
972     if (dstPtr - dstPtr0 + dstSize >= 64 KB)   /* dstBuffer large enough to become dictionary */
1029 * The function will attempt to decode *srcSizePtr from srcBuffer, into dstBuffer of maximum size *dstSizePtr.
1031 * The number of bytes regenerated into dstBuffer will be provided within *dstSizePtr (necessarily <= original value).
1045                        void* dstBuffer, size_t* dstSizePtr,
1054     BYTE* const dstStart = (BYTE*)dstBuffer;
1304         case dstage_flushOut:  /* flush decoded data from tmpOut to dstBuffer */