/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */ static int rgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]) { const enum PixelFormat srcFormat= c->srcFormat; const enum PixelFormat dstFormat= c->dstFormat; const int srcBpp= (c->srcFormatBpp + 7) >> 3; const int dstBpp= (c->dstFormatBpp + 7) >> 3; const int srcId= c->srcFormatBpp >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */ const int dstId= c->dstFormatBpp >> 2; void (*conv)(const uint8_t *src, uint8_t *dst, int src_size)=NULL; #define CONV_IS(src, dst) (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst) if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) { if ( CONV_IS(ABGR, RGBA) || CONV_IS(ARGB, BGRA) || CONV_IS(BGRA, ARGB) || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210; else if (CONV_IS(ABGR, ARGB) || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321; else if (CONV_IS(ABGR, BGRA) || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230; else if (CONV_IS(BGRA, RGBA) || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103; else if (CONV_IS(BGRA, ABGR) || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012; } else /* BGR -> BGR */ if ( (isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) || (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) { switch(srcId | (dstId<<4)) { case 0x34: conv= rgb16to15; break; case 0x36: conv= rgb24to15; break; case 0x38: conv= rgb32to15; break; case 0x43: conv= rgb15to16; break; case 0x46: conv= rgb24to16; break; case 0x48: conv= rgb32to16; break; case 0x63: conv= rgb15to24; break; case 0x64: conv= rgb16to24; break; case 0x68: conv= rgb32to24; break; case 0x83: conv= rgb15to32; break; case 0x84: conv= rgb16to32; break; case 0x86: conv= rgb24to32; break; } } else if ( (isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) || (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) { switch(srcId | (dstId<<4)) { case 0x33: conv= rgb15tobgr15; break; case 0x34: conv= rgb16tobgr15; break; case 0x36: conv= rgb24tobgr15; break; case 0x38: conv= rgb32tobgr15; break; case 0x43: conv= rgb15tobgr16; break; case 0x44: conv= rgb16tobgr16; break; case 0x46: conv= rgb24tobgr16; break; case 0x48: conv= rgb32tobgr16; break; case 0x63: conv= rgb15tobgr24; break; case 0x64: conv= rgb16tobgr24; break; case 0x66: conv= rgb24tobgr24; break; case 0x68: conv= rgb32tobgr24; break; case 0x83: conv= rgb15tobgr32; break; case 0x84: conv= rgb16tobgr32; break; case 0x86: conv= rgb24tobgr32; break; } } if (!conv) { av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n", sws_format_name(srcFormat), sws_format_name(dstFormat)); } else { const uint8_t *srcPtr= src[0]; uint8_t *dstPtr= dst[0]; if ((srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1) && !isRGBA32(dstFormat)) srcPtr += ALT32_CORR; if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) && !isRGBA32(srcFormat)) dstPtr += ALT32_CORR; if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0) conv(srcPtr, dstPtr + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]); else { int i; dstPtr += dstStride[0]*srcSliceY; for (i=0; i<srcSliceH; i++) { conv(srcPtr, dstPtr, c->srcW*srcBpp); srcPtr+= srcStride[0]; dstPtr+= dstStride[0]; } } } return srcSliceH; }
static rgbConvFn findRgbConvFn(SwsContext *c) { const enum AVPixelFormat srcFormat = c->srcFormat; const enum AVPixelFormat dstFormat = c->dstFormat; const int srcId = c->srcFormatBpp; const int dstId = c->dstFormatBpp; rgbConvFn conv = NULL; #define IS_NOT_NE(bpp, desc) \ (((bpp + 7) >> 3) == 2 && \ (!(desc->flags & PIX_FMT_BE) != !HAVE_BIGENDIAN)) #define CONV_IS(src, dst) (srcFormat == AV_PIX_FMT_##src && dstFormat == AV_PIX_FMT_##dst) if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) { if ( CONV_IS(ABGR, RGBA) || CONV_IS(ARGB, BGRA) || CONV_IS(BGRA, ARGB) || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210; else if (CONV_IS(ABGR, ARGB) || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321; else if (CONV_IS(ABGR, BGRA) || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230; else if (CONV_IS(BGRA, RGBA) || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103; else if (CONV_IS(BGRA, ABGR) || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012; } else if (isRGB48(srcFormat) && isRGB48(dstFormat)) { if (CONV_IS(RGB48LE, BGR48LE) || CONV_IS(BGR48LE, RGB48LE) || CONV_IS(RGB48BE, BGR48BE) || CONV_IS(BGR48BE, RGB48BE)) conv = rgb48tobgr48_nobswap; else if (CONV_IS(RGB48LE, BGR48BE) || CONV_IS(BGR48LE, RGB48BE) || CONV_IS(RGB48BE, BGR48LE) || CONV_IS(BGR48BE, RGB48LE)) conv = rgb48tobgr48_bswap; } else if (isRGBA64(srcFormat) && isRGB48(dstFormat)) { if (CONV_IS(RGBA64LE, BGR48LE) || CONV_IS(BGRA64LE, RGB48LE) || CONV_IS(RGBA64BE, BGR48BE) || CONV_IS(BGRA64BE, RGB48BE)) conv = rgb64tobgr48_nobswap; else if (CONV_IS(RGBA64LE, BGR48BE) || CONV_IS(BGRA64LE, RGB48BE) || CONV_IS(RGBA64BE, BGR48LE) || CONV_IS(BGRA64BE, RGB48LE)) conv = rgb64tobgr48_bswap; else if (CONV_IS(RGBA64LE, RGB48LE) || CONV_IS(BGRA64LE, BGR48LE) || CONV_IS(RGBA64BE, RGB48BE) || CONV_IS(BGRA64BE, BGR48BE)) conv = rgb64to48_nobswap; else if (CONV_IS(RGBA64LE, RGB48BE) || CONV_IS(BGRA64LE, BGR48BE) || CONV_IS(RGBA64BE, RGB48LE) || CONV_IS(BGRA64BE, BGR48LE)) conv = rgb64to48_bswap; } else /* BGR -> BGR */ if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) || (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) { switch (srcId | (dstId << 16)) { case 0x000F000C: conv = rgb12to15; break; case 0x000F0010: conv = rgb16to15; break; case 0x000F0018: conv = rgb24to15; break; case 0x000F0020: conv = rgb32to15; break; case 0x0010000F: conv = rgb15to16; break; case 0x00100018: conv = rgb24to16; break; case 0x00100020: conv = rgb32to16; break; case 0x0018000F: conv = rgb15to24; break; case 0x00180010: conv = rgb16to24; break; case 0x00180020: conv = rgb32to24; break; case 0x0020000F: conv = rgb15to32; break; case 0x00200010: conv = rgb16to32; break; case 0x00200018: conv = rgb24to32; break; } } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) || (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) { switch (srcId | (dstId << 16)) { case 0x000C000C: conv = rgb12tobgr12; break; case 0x000F000F: conv = rgb15tobgr15; break; case 0x000F0010: conv = rgb16tobgr15; break; case 0x000F0018: conv = rgb24tobgr15; break; case 0x000F0020: conv = rgb32tobgr15; break; case 0x0010000F: conv = rgb15tobgr16; break; case 0x00100010: conv = rgb16tobgr16; break; case 0x00100018: conv = rgb24tobgr16; break; case 0x00100020: conv = rgb32tobgr16; break; case 0x0018000F: conv = rgb15tobgr24; break; case 0x00180010: conv = rgb16tobgr24; break; case 0x00180018: conv = rgb24tobgr24; break; case 0x00180020: conv = rgb32tobgr24; break; case 0x0020000F: conv = rgb15tobgr32; break; case 0x00200010: conv = rgb16tobgr32; break; case 0x00200018: conv = rgb24tobgr32; break; } } if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(srcFormat) && ALT32_CORR<0) return NULL; return conv; }