libfreerdp-codec: cleanup and restructure planar decompressor for chroma subsampling
This commit is contained in:
Marc-André Moreau
parent
5b8fb70e8c
commit
ad9092baf9
@ -30,11 +30,60 @@
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#include "planar.h"
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static int planar_decompress_plane_rle(BYTE* pSrcData, UINT32 SrcSize, BYTE* pDstData,
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static int planar_skip_plane_rle(const BYTE* pSrcData, UINT32 SrcSize, int nWidth, int nHeight)
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{
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int x, y;
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int cRawBytes;
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int nRunLength;
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BYTE controlByte;
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const BYTE* pRLE = pSrcData;
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const BYTE* pEnd = &pSrcData[SrcSize];
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for (y = 0; y < nHeight; y++)
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{
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for (x = 0; x < nWidth; )
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{
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if (pRLE >= pEnd)
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return -1;
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controlByte = *pRLE++;
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nRunLength = PLANAR_CONTROL_BYTE_RUN_LENGTH(controlByte);
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cRawBytes = PLANAR_CONTROL_BYTE_RAW_BYTES(controlByte);
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if (nRunLength == 1)
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{
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nRunLength = cRawBytes + 16;
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cRawBytes = 0;
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}
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else if (nRunLength == 2)
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{
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nRunLength = cRawBytes + 32;
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cRawBytes = 0;
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}
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pRLE += cRawBytes;
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x += cRawBytes;
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cRawBytes = 0;
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x += nRunLength;
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nRunLength = 0;
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if (x > nWidth)
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return -1;
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if (pRLE > pEnd)
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return -1;
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}
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}
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return (int) (pRLE - pSrcData);
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}
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static int planar_decompress_plane_rle(const BYTE* pSrcData, UINT32 SrcSize, BYTE* pDstData,
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int nDstStep, int nXDst, int nYDst, int nWidth, int nHeight, int nChannel, BOOL vFlip)
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{
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int x, y;
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BYTE* srcp;
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BYTE* dstp;
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UINT32 pixel;
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int cRawBytes;
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@ -44,8 +93,8 @@ static int planar_decompress_plane_rle(BYTE* pSrcData, UINT32 SrcSize, BYTE* pDs
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BYTE controlByte;
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BYTE* currentScanline;
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BYTE* previousScanline;
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const BYTE* srcp = pSrcData;
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srcp = pSrcData;
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dstp = pDstData;
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previousScanline = NULL;
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@ -168,43 +217,7 @@ static int planar_decompress_plane_rle(BYTE* pSrcData, UINT32 SrcSize, BYTE* pDs
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return (int) (srcp - pSrcData);
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}
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static int planar_decompress_plane_raw(BYTE* pSrcData, UINT32 SrcSize, BYTE* pDstData,
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int nDstStep, int nXDst, int nYDst, int nWidth, int nHeight, int nChannel, BOOL vFlip)
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{
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int x, y;
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int beg, end, inc;
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BYTE* dstp = NULL;
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BYTE* srcp = pSrcData;
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if (vFlip)
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{
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beg = nHeight - 1;
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end = -1;
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inc = -1;
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}
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else
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{
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beg = 0;
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end = nHeight;
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inc = 1;
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}
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for (y = beg; y != end; y += inc)
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{
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dstp = &pDstData[((nYDst + y) * nDstStep) + (nXDst * 4) + nChannel];
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for (x = 0; x < nWidth; x++)
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{
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*dstp = *srcp;
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dstp += 4;
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srcp++;
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}
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}
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return (int) (srcp - pSrcData);
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}
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static int planar_decompress_rgb_planes_raw(const BYTE* pSrcData[4], int nSrcStep, BYTE* pDstData,
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static int planar_decompress_planes_raw(const BYTE* pSrcData[4], int nSrcStep, BYTE* pDstData,
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int nDstStep, int nXDst, int nYDst, int nWidth, int nHeight, BOOL alpha, BOOL vFlip)
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{
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int x, y;
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@ -272,8 +285,17 @@ int planar_decompress(BITMAP_PLANAR_CONTEXT* planar, BYTE* pSrcData, UINT32 SrcS
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int status;
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BYTE* srcp;
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BOOL vFlip;
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int subSize;
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int subWidth;
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int subHeight;
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int planeSize;
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BYTE* pDstData;
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int rleSizes[4];
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int rawSizes[4];
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int rawWidths[4];
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int rawHeights[4];
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BYTE FormatHeader;
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BYTE* pDstData = NULL;
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const BYTE* planes[4];
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UINT32 UncompressedSize;
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const primitives_t* prims = primitives_get();
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@ -297,8 +319,7 @@ int planar_decompress(BITMAP_PLANAR_CONTEXT* planar, BYTE* pSrcData, UINT32 SrcS
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*ppDstData = pDstData;
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}
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FormatHeader = *srcp;
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srcp++;
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FormatHeader = *srcp++;
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cll = (FormatHeader & PLANAR_FORMAT_HEADER_CLL_MASK);
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cs = (FormatHeader & PLANAR_FORMAT_HEADER_CS) ? TRUE : FALSE;
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@ -307,234 +328,251 @@ int planar_decompress(BITMAP_PLANAR_CONTEXT* planar, BYTE* pSrcData, UINT32 SrcS
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//printf("CLL: %d CS: %d RLE: %d ALPHA: %d\n", cll, cs, rle, alpha);
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if (!cll && cs)
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return -1; /* Chroma subsampling requires YCoCg */
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subWidth = (nWidth / 2) + (nWidth % 2);
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subHeight = (nHeight / 2) + (nHeight % 2);
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planeSize = nWidth * nHeight;
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subSize = subWidth * subHeight;
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if (!cs)
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{
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rawSizes[0] = planeSize; /* LumaOrRedPlane */
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rawWidths[0] = nWidth;
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rawHeights[0] = nHeight;
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rawSizes[1] = planeSize; /* OrangeChromaOrGreenPlane */
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rawWidths[1] = nWidth;
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rawHeights[1] = nHeight;
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rawSizes[2] = planeSize; /* GreenChromaOrBluePlane */
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rawWidths[2] = nWidth;
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rawHeights[2] = nHeight;
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rawSizes[3] = planeSize; /* AlphaPlane */
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rawWidths[3] = nWidth;
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rawHeights[3] = nHeight;
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}
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else /* Chroma Subsampling */
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{
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rawSizes[0] = planeSize; /* LumaOrRedPlane */
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rawWidths[0] = nWidth;
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rawHeights[0] = nHeight;
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rawSizes[1] = subSize; /* OrangeChromaOrGreenPlane */
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rawWidths[1] = subWidth;
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rawHeights[1] = subHeight;
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rawSizes[2] = subSize; /* GreenChromaOrBluePlane */
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rawWidths[2] = subWidth;
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rawHeights[2] = subHeight;
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rawSizes[3] = planeSize; /* AlphaPlane */
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rawWidths[3] = nWidth;
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rawHeights[3] = nHeight;
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}
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if (!rle) /* RAW */
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{
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if (alpha)
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{
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planes[3] = srcp; /* AlphaPlane */
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planes[0] = planes[3] + rawSizes[3]; /* LumaOrRedPlane */
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planes[1] = planes[0] + rawSizes[0]; /* OrangeChromaOrGreenPlane */
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planes[2] = planes[1] + rawSizes[1]; /* GreenChromaOrBluePlane */
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if ((planes[2] + rawSizes[2]) > &pSrcData[SrcSize])
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return -1;
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}
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else
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{
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if ((SrcSize - (srcp - pSrcData)) < (planeSize * 3))
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return -1;
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planes[0] = srcp; /* LumaOrRedPlane */
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planes[1] = planes[0] + rawSizes[0]; /* OrangeChromaOrGreenPlane */
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planes[2] = planes[1] + rawSizes[1]; /* GreenChromaOrBluePlane */
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if ((planes[2] + rawSizes[2]) > &pSrcData[SrcSize])
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return -1;
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}
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}
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else /* RLE */
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{
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if (alpha)
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{
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planes[3] = srcp;
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rleSizes[3] = planar_skip_plane_rle(planes[3], SrcSize - (planes[3] - pSrcData),
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rawWidths[3], rawHeights[3]); /* AlphaPlane */
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if (rleSizes[3] < 0)
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return -1;
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planes[0] = planes[3] + rleSizes[3];
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rleSizes[0] = planar_skip_plane_rle(planes[0], SrcSize - (planes[0] - pSrcData),
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rawWidths[0], rawHeights[0]); /* RedPlane */
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if (rleSizes[0] < 0)
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return -1;
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planes[1] = planes[0] + rleSizes[0];
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rleSizes[1] = planar_skip_plane_rle(planes[1], SrcSize - (planes[1] - pSrcData),
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rawWidths[1], rawHeights[1]); /* GreenPlane */
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if (rleSizes[1] < 1)
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return -1;
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planes[2] = planes[1] + rleSizes[1];
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rleSizes[2] = planar_skip_plane_rle(planes[2], SrcSize - (planes[2] - pSrcData),
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rawWidths[2], rawHeights[2]); /* BluePlane */
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if (rleSizes[2] < 1)
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return -1;
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}
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else
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{
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planes[0] = srcp;
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rleSizes[0] = planar_skip_plane_rle(planes[0], SrcSize - (planes[0] - pSrcData),
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rawWidths[0], rawHeights[0]); /* RedPlane */
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if (rleSizes[0] < 0)
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return -1;
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planes[1] = planes[0] + rleSizes[0];
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rleSizes[1] = planar_skip_plane_rle(planes[1], SrcSize - (planes[1] - pSrcData),
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rawWidths[1], rawHeights[1]); /* GreenPlane */
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if (rleSizes[1] < 1)
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return -1;
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planes[2] = planes[1] + rleSizes[1];
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rleSizes[2] = planar_skip_plane_rle(planes[2], SrcSize - (planes[2] - pSrcData),
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rawWidths[2], rawHeights[2]); /* BluePlane */
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if (rleSizes[2] < 1)
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return -1;
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}
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}
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if (!cll) /* RGB */
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{
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if (!rle) /* RAW */
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{
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int planeSize;
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const BYTE* planes[4];
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planeSize = nWidth * nHeight;
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if (alpha)
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{
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if ((SrcSize - (srcp - pSrcData)) < (planeSize * 4))
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return -1;
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planes[3] = &srcp[planeSize * 0]; /* AlphaPlane */
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planes[0] = &srcp[planeSize * 1]; /* RedPlane */
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planes[1] = &srcp[planeSize * 2]; /* GreenPlane */
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planes[2] = &srcp[planeSize * 3]; /* BluePlane */
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planar_decompress_rgb_planes_raw(planes, nWidth, pDstData, nDstStep,
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planar_decompress_planes_raw(planes, nWidth, pDstData, nDstStep,
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nXDst, nYDst, nWidth, nHeight, alpha, vFlip);
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srcp += (planeSize * 4);
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srcp++; /* pad */
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srcp += rawSizes[0] + rawSizes[1] + rawSizes[2] + rawSizes[3];
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}
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else /* NoAlpha */
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{
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if ((SrcSize - (srcp - pSrcData)) < (planeSize * 3))
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return -1;
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planes[0] = &srcp[planeSize * 0]; /* RedPlane */
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planes[1] = &srcp[planeSize * 1]; /* GreenPlane */
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planes[2] = &srcp[planeSize * 2]; /* BluePlane */
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planar_decompress_rgb_planes_raw(planes, nWidth, pDstData, nDstStep,
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planar_decompress_planes_raw(planes, nWidth, pDstData, nDstStep,
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nXDst, nYDst, nWidth, nHeight, alpha, vFlip);
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srcp += (planeSize * 3);
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srcp++; /* pad */
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srcp += rawSizes[0] + rawSizes[1] + rawSizes[2];
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}
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if ((SrcSize - (srcp - pSrcData)) == 1)
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srcp++; /* pad */
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}
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else /* RLE */
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{
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if (alpha)
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{
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/* AlphaPlane */
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status = planar_decompress_plane_rle(planes[3], rleSizes[3],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 3, vFlip); /* AlphaPlane */
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status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 3, vFlip);
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status = planar_decompress_plane_rle(planes[0], rleSizes[0],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 2, vFlip); /* RedPlane */
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if (status < 0)
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return -1;
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status = planar_decompress_plane_rle(planes[1], rleSizes[1],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 1, vFlip); /* GreenPlane */
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srcp += status;
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status = planar_decompress_plane_rle(planes[2], rleSizes[2],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 0, vFlip); /* BluePlane */
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/* RedPlane */
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status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 2, vFlip);
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if (status < 0)
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return -1;
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srcp += status;
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/* GreenPlane */
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status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 1, vFlip);
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if (status < 0)
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return -1;
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srcp += status;
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/* BluePlane */
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status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 0, vFlip);
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if (status < 0)
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return -1;
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srcp += status;
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srcp += rleSizes[0] + rleSizes[1] + rleSizes[2] + rleSizes[3];
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}
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else /* NoAlpha */
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{
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/* RedPlane */
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status = planar_decompress_plane_rle(planes[0], rleSizes[0],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 2, vFlip); /* RedPlane */
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status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 2, vFlip);
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status = planar_decompress_plane_rle(planes[1], rleSizes[1],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 1, vFlip); /* GreenPlane */
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if (status < 0)
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return -1;
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status = planar_decompress_plane_rle(planes[2], rleSizes[2],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 0, vFlip); /* BluePlane */
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srcp += status;
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srcp += rleSizes[0] + rleSizes[1] + rleSizes[2];
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}
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}
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}
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else /* YCoCg */
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{
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if (cs)
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{
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fprintf(stderr, "Chroma subsampling unimplemented\n");
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return -1;
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}
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/* GreenPlane */
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if (!rle) /* RAW */
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{
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if (alpha)
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{
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planar_decompress_planes_raw(planes, nWidth, pDstData, nDstStep,
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nXDst, nYDst, nWidth, nHeight, alpha, vFlip);
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status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 1, vFlip);
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srcp += rawSizes[0] + rawSizes[1] + rawSizes[2] + rawSizes[3];
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}
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else /* NoAlpha */
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{
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planar_decompress_planes_raw(planes, nWidth, pDstData, nDstStep,
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nXDst, nYDst, nWidth, nHeight, alpha, vFlip);
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if (status < 0)
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return -1;
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srcp += rawSizes[0] + rawSizes[1] + rawSizes[2];
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}
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srcp += status;
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if ((SrcSize - (srcp - pSrcData)) == 1)
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srcp++; /* pad */
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}
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else /* RLE */
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{
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if (alpha)
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{
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status = planar_decompress_plane_rle(planes[3], rleSizes[3],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 3, vFlip); /* AlphaPlane */
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/* BluePlane */
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status = planar_decompress_plane_rle(planes[0], rleSizes[0],
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pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 2, vFlip); /* LumaPlane */
|
||||
|
||||
status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 0, vFlip);
|
||||
status = planar_decompress_plane_rle(planes[1], rleSizes[1],
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 1, vFlip); /* OrangeChromaPlane */
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
status = planar_decompress_plane_rle(planes[2], rleSizes[2],
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 0, vFlip); /* GreenChromaPlane */
|
||||
|
||||
srcp += status;
|
||||
srcp += rleSizes[0] + rleSizes[1] + rleSizes[2] + rleSizes[3];
|
||||
}
|
||||
else /* NoAlpha */
|
||||
{
|
||||
status = planar_decompress_plane_rle(planes[0], rleSizes[0],
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 2, vFlip); /* LumaPlane */
|
||||
|
||||
status = planar_decompress_plane_rle(planes[1], rleSizes[1],
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 1, vFlip); /* OrangeChromaPlane */
|
||||
|
||||
status = planar_decompress_plane_rle(planes[2], rleSizes[2],
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 0, vFlip); /* GreenChromaPlane */
|
||||
|
||||
srcp += rleSizes[0] + rleSizes[1] + rleSizes[2];
|
||||
}
|
||||
}
|
||||
|
||||
status = (SrcSize == (srcp - pSrcData)) ? 1 : -1;
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
/* AlphaPlane */
|
||||
|
||||
if (alpha)
|
||||
{
|
||||
if (rle)
|
||||
{
|
||||
status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 3, vFlip);
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
|
||||
srcp += status;
|
||||
}
|
||||
else
|
||||
{
|
||||
status = planar_decompress_plane_raw(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 3, vFlip);
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
|
||||
srcp += status;
|
||||
}
|
||||
}
|
||||
|
||||
if (rle)
|
||||
{
|
||||
/* LumaPlane */
|
||||
|
||||
status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 2, vFlip);
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
|
||||
srcp += status;
|
||||
|
||||
/* OrangeChromaPlane */
|
||||
|
||||
status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 1, vFlip);
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
|
||||
srcp += status;
|
||||
|
||||
/* GreenChromaPlane */
|
||||
|
||||
status = planar_decompress_plane_rle(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 0, vFlip);
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
|
||||
srcp += status;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* LumaPlane */
|
||||
|
||||
status = planar_decompress_plane_raw(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 2, vFlip);
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
|
||||
srcp += status;
|
||||
|
||||
/* OrangeChromaPlane */
|
||||
|
||||
status = planar_decompress_plane_raw(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 1, vFlip);
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
|
||||
srcp += status;
|
||||
|
||||
/* GreenChromaPlane */
|
||||
|
||||
status = planar_decompress_plane_raw(srcp, SrcSize - (srcp - pSrcData),
|
||||
pDstData, nDstStep, nXDst, nYDst, nWidth, nHeight, 0, vFlip);
|
||||
|
||||
if (status < 0)
|
||||
return -1;
|
||||
|
||||
srcp += status;
|
||||
srcp++;
|
||||
}
|
||||
|
||||
if (cll)
|
||||
{
|
||||
/* The data is in YCoCg colorspace rather than RGB. */
|
||||
if (cs)
|
||||
{
|
||||
DEBUG_WARN("Chroma-Subsampling is not implemented");
|
||||
}
|
||||
else
|
||||
{
|
||||
prims->YCoCgToRGB_8u_AC4R(pDstData, nDstStep,
|
||||
pDstData, nDstStep, nWidth, nHeight, cll, alpha, FALSE);
|
||||
}
|
||||
prims->YCoCgToRGB_8u_AC4R(pDstData, nDstStep, pDstData, nDstStep, nWidth, nHeight, cll, alpha, FALSE);
|
||||
}
|
||||
|
||||
status = (SrcSize == (srcp - pSrcData)) ? 1 : -1;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user