ulib/lz4/lz4frame.c

132     LZ4F_frameInfo_t frameInfo;
265     prefs.frameInfo.blockSizeID = LZ4F_optimalBSID(prefs.frameInfo.blockSizeID, srcSize);
305     if (prefs.frameInfo.contentSize != 0)
306         prefs.frameInfo.contentSize = (U64)srcSize;   /* auto-correct content size if selected (!=0) */
314     prefs.frameInfo.blockSizeID = LZ4F_optimalBSID(prefs.frameInfo.blockSizeID, srcSize);
316     if (srcSize <= LZ4F_getBlockSize(prefs.frameInfo.blockSizeID))
317         prefs.frameInfo.blockMode = LZ4F_blockIndependent;   /* no need for linked blocks */
422     if (cctxPtr->prefs.frameInfo.blockSizeID == 0) cctxPtr->prefs.frameInfo.blockSizeID = LZ4F_BLOCKSIZEID_DEFAULT;
423     cctxPtr->maxBlockSize = LZ4F_getBlockSize(cctxPtr->prefs.frameInfo.blockSizeID);
425     requiredBuffSize = cctxPtr->maxBlockSize + ((cctxPtr->prefs.frameInfo.blockMode == LZ4F_blockLinked) * 128 KB);
427         requiredBuffSize = (cctxPtr->prefs.frameInfo.blockMode == LZ4F_blockLinked) * 64 KB;   /* just needs dict */
451         + ((cctxPtr->prefs.frameInfo.blockMode & _1BIT ) << 5)    /* Block mode */
452         + ((cctxPtr->prefs.frameInfo.contentChecksumFlag & _1BIT ) << 2)   /* Frame checksum */
453         + ((cctxPtr->prefs.frameInfo.contentSize > 0) << 3));   /* Frame content size */
455     *dstPtr++ = (BYTE)((cctxPtr->prefs.frameInfo.blockSizeID & _3BITS) << 4);
457     if (cctxPtr->prefs.frameInfo.contentSize)
459         LZ4F_writeLE64(dstPtr, cctxPtr->prefs.frameInfo.contentSize);
481     prefsNull.frameInfo.contentChecksumFlag = LZ4F_contentChecksumEnabled;   /* worst case */
484         LZ4F_blockSizeID_t bid = prefsPtr->frameInfo.blockSizeID;
489         size_t frameEnd = 4 + (prefsPtr->frameInfo.contentChecksumFlag*4);
581     compress = LZ4F_selectCompression(cctxPtr->prefs.frameInfo.blockMode, cctxPtr->prefs.compressionLevel);
604             if (cctxPtr->prefs.frameInfo.blockMode==LZ4F_blockLinked) cctxPtr->tmpIn += blockSize;
626     if ((cctxPtr->prefs.frameInfo.blockMode==LZ4F_blockLinked) && (lastBlockCompressed==fromSrcBuffer))
657     if (cctxPtr->prefs.frameInfo.contentChecksumFlag == LZ4F_contentChecksumEnabled)
687     compress = LZ4F_selectCompression(cctxPtr->prefs.frameInfo.blockMode, cctxPtr->prefs.compressionLevel);
691     if (cctxPtr->prefs.frameInfo.blockMode==LZ4F_blockLinked) cctxPtr->tmpIn += cctxPtr->tmpInSize;
728     if (cctxPtr->prefs.frameInfo.contentChecksumFlag == LZ4F_contentChecksumEnabled)
737     if (cctxPtr->prefs.frameInfo.contentSize)
739         if (cctxPtr->prefs.frameInfo.contentSize != cctxPtr->totalInSize)
807             dctxPtr->frameInfo and dctxPtr->dStage.
818     /* need to decode header to get frameInfo */
820     memset(&(dctxPtr->frameInfo), 0, sizeof(dctxPtr->frameInfo));
825         dctxPtr->frameInfo.frameType = LZ4F_skippableFrame;
842     dctxPtr->frameInfo.frameType = LZ4F_frame;
882     dctxPtr->frameInfo.blockMode = (LZ4F_blockMode_t)blockMode;
883     dctxPtr->frameInfo.contentChecksumFlag = (LZ4F_contentChecksum_t)contentChecksumFlag;
884     dctxPtr->frameInfo.blockSizeID = (LZ4F_blockSizeID_t)blockSizeID;
887         dctxPtr->frameRemainingSize = dctxPtr->frameInfo.contentSize = LZ4F_readLE64(srcPtr+6);
893     bufferNeeded = dctxPtr->maxBlockSize + ((dctxPtr->frameInfo.blockMode==LZ4F_blockLinked) * 128 KB);
936         /* frameInfo already decoded */
938         *frameInfoPtr = dctxPtr->frameInfo;
947         *frameInfoPtr = dctxPtr->frameInfo;
1177                 if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), srcPtr, sizeToCopy);
1178                 if (dctxPtr->frameInfo.contentSize) dctxPtr->frameRemainingSize -= sizeToCopy;
1181                 if (dctxPtr->frameInfo.blockMode==LZ4F_blockLinked)
1243                 if (dctxPtr->frameInfo.blockMode == LZ4F_blockLinked)
1250                 if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), dstPtr, decodedSize);
1251                 if (dctxPtr->frameInfo.contentSize) dctxPtr->frameRemainingSize -= decodedSize;
1254                 if (dctxPtr->frameInfo.blockMode==LZ4F_blockLinked)
1268                 if (dctxPtr->frameInfo.blockMode == LZ4F_blockLinked)
1274                 if (dctxPtr->frameInfo.blockMode == LZ4F_blockLinked)
1296                 if (dctxPtr->frameInfo.contentChecksumFlag) XXH32_update(&(dctxPtr->xxh), dctxPtr->tmpOut, decodedSize);
1297                 if (dctxPtr->frameInfo.contentSize) dctxPtr->frameRemainingSize -= decodedSize;
1311                 if (dctxPtr->frameInfo.blockMode==LZ4F_blockLinked)
1330                 size_t suffixSize = dctxPtr->frameInfo.contentChecksumFlag * 4;
1415                 dctxPtr->frameInfo.contentSize = SFrameSize;
1437     if ( (dctxPtr->frameInfo.blockMode==LZ4F_blockLinked)