[FFmpeg-cvslog] swscale: split swscale.c in unscaled and generic conversion routines.
Ronald S. Bultje
git at videolan.org
Sat Jun 4 06:40:02 CEST 2011
ffmpeg | branch: master | Ronald S. Bultje <rsbultje at gmail.com> | Thu Jun 2 22:45:16 2011 -0700| [6af2801088aef6dd7aa688e88073f13bc7a8a4f4] | committer: Ronald S. Bultje
swscale: split swscale.c in unscaled and generic conversion routines.
This duplicates the function fillPlane().
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6af2801088aef6dd7aa688e88073f13bc7a8a4f4
---
libswscale/Makefile | 3 +-
libswscale/swscale.c | 839 --------------------------------------
libswscale/swscale_internal.h | 7 +
libswscale/swscale_unscaled.c | 887 +++++++++++++++++++++++++++++++++++++++++
4 files changed, 896 insertions(+), 840 deletions(-)
diff --git a/libswscale/Makefile b/libswscale/Makefile
index 1d62b13..8bb06ba 100644
--- a/libswscale/Makefile
+++ b/libswscale/Makefile
@@ -5,7 +5,8 @@ FFLIBS = avutil
HEADERS = swscale.h
-OBJS = options.o rgb2rgb.o swscale.o utils.o yuv2rgb.o
+OBJS = options.o rgb2rgb.o swscale.o utils.o yuv2rgb.o \
+ swscale_unscaled.o
OBJS-$(ARCH_BFIN) += bfin/internal_bfin.o \
bfin/swscale_bfin.o \
diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index 56ceb13..fd64b81 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -69,14 +69,6 @@ untested special converters
#define DITHER1XBPP
-#define isPacked(x) ( \
- (x)==PIX_FMT_PAL8 \
- || (x)==PIX_FMT_YUYV422 \
- || (x)==PIX_FMT_UYVY422 \
- || (x)==PIX_FMT_Y400A \
- || isAnyRGB(x) \
- )
-
#define RGB2YUV_SHIFT 15
#define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
#define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
@@ -2096,834 +2088,3 @@ SwsFunc ff_getSwsFunc(SwsContext *c)
return swScale;
}
-
-static void copyPlane(const uint8_t *src, int srcStride,
- int srcSliceY, int srcSliceH, int width,
- uint8_t *dst, int dstStride)
-{
- dst += dstStride * srcSliceY;
- if (dstStride == srcStride && srcStride > 0) {
- memcpy(dst, src, srcSliceH * dstStride);
- } else {
- int i;
- for (i=0; i<srcSliceH; i++) {
- memcpy(dst, src, width);
- src += srcStride;
- dst += dstStride;
- }
- }
-}
-
-static int planarToNv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *dst = dstParam[1] + dstStride[1]*srcSliceY/2;
-
- copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
- dstParam[0], dstStride[0]);
-
- if (c->dstFormat == PIX_FMT_NV12)
- interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);
- else
- interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);
-
- return srcSliceH;
-}
-
-static int planarToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
-
- yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
-
- return srcSliceH;
-}
-
-static int planarToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
-
- yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
-
- return srcSliceH;
-}
-
-static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
-
- yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
-
- return srcSliceH;
-}
-
-static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
-
- yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
-
- return srcSliceH;
-}
-
-static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
- uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
- uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
-
- yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
-
- if (dstParam[3])
- fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
-
- return srcSliceH;
-}
-
-static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
- uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
- uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
-
- yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
-
- return srcSliceH;
-}
-
-static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
- uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
- uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
-
- uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
-
- if (dstParam[3])
- fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
-
- return srcSliceH;
-}
-
-static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dstParam[], int dstStride[])
-{
- uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
- uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
- uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
-
- uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
-
- return srcSliceH;
-}
-
-static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
-{
- int i;
- for (i=0; i<num_pixels; i++)
- ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | (src[(i<<1)+1] << 24);
-}
-
-static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
-{
- int i;
-
- for (i=0; i<num_pixels; i++)
- ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | src[(i<<1)+1];
-}
-
-static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
-{
- int i;
-
- for (i=0; i<num_pixels; i++) {
- //FIXME slow?
- dst[0]= palette[src[i<<1]*4+0];
- dst[1]= palette[src[i<<1]*4+1];
- dst[2]= palette[src[i<<1]*4+2];
- dst+= 3;
- }
-}
-
-static int palToRgbWrapper(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;
- void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels,
- const uint8_t *palette)=NULL;
- int i;
- uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
- const uint8_t *srcPtr= src[0];
-
- if (srcFormat == PIX_FMT_Y400A) {
- switch (dstFormat) {
- case PIX_FMT_RGB32 : conv = gray8aToPacked32; break;
- case PIX_FMT_BGR32 : conv = gray8aToPacked32; break;
- case PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
- case PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
- case PIX_FMT_RGB24 : conv = gray8aToPacked24; break;
- case PIX_FMT_BGR24 : conv = gray8aToPacked24; break;
- }
- } else if (usePal(srcFormat)) {
- switch (dstFormat) {
- case PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
- case PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
- case PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
- case PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
- case PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
- case PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
- }
- }
-
- if (!conv)
- av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
- sws_format_name(srcFormat), sws_format_name(dstFormat));
- else {
- for (i=0; i<srcSliceH; i++) {
- conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
- srcPtr+= srcStride[0];
- dstPtr+= dstStride[0];
- }
- }
-
- return srcSliceH;
-}
-
-#define isRGBA32(x) ( \
- (x) == PIX_FMT_ARGB \
- || (x) == PIX_FMT_RGBA \
- || (x) == PIX_FMT_BGRA \
- || (x) == PIX_FMT_ABGR \
- )
-
-/* {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 int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[])
-{
- rgb24toyv12(
- src[0],
- dst[0]+ srcSliceY *dstStride[0],
- dst[1]+(srcSliceY>>1)*dstStride[1],
- dst[2]+(srcSliceY>>1)*dstStride[2],
- c->srcW, srcSliceH,
- dstStride[0], dstStride[1], srcStride[0]);
- if (dst[3])
- fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
- return srcSliceH;
-}
-
-static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[])
-{
- copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
- dst[0], dstStride[0]);
-
- planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
- srcSliceH >> 2, srcStride[1], dstStride[1]);
- planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
- srcSliceH >> 2, srcStride[2], dstStride[2]);
- if (dst[3])
- fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
- return srcSliceH;
-}
-
-/* unscaled copy like stuff (assumes nearly identical formats) */
-static int packedCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[])
-{
- if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
- memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
- else {
- int i;
- const uint8_t *srcPtr= src[0];
- uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
- int length=0;
-
- /* universal length finder */
- while(length+c->srcW <= FFABS(dstStride[0])
- && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
- assert(length!=0);
-
- for (i=0; i<srcSliceH; i++) {
- memcpy(dstPtr, srcPtr, length);
- srcPtr+= srcStride[0];
- dstPtr+= dstStride[0];
- }
- }
- return srcSliceH;
-}
-
-static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[])
-{
- int plane, i, j;
- for (plane=0; plane<4; plane++) {
- int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
- int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
- int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
- const uint8_t *srcPtr= src[plane];
- uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
-
- if (!dst[plane]) continue;
- // ignore palette for GRAY8
- if (plane == 1 && !dst[2]) continue;
- if (!src[plane] || (plane == 1 && !src[2])) {
- if(is16BPS(c->dstFormat))
- length*=2;
- fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);
- } else {
- if(is9_OR_10BPS(c->srcFormat)) {
- const int src_depth = av_pix_fmt_descriptors[c->srcFormat].comp[plane].depth_minus1+1;
- const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1;
- const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;
-
- if (is16BPS(c->dstFormat)) {
- uint16_t *dstPtr2 = (uint16_t*)dstPtr;
-#define COPY9_OR_10TO16(rfunc, wfunc) \
- for (i = 0; i < height; i++) { \
- for (j = 0; j < length; j++) { \
- int srcpx = rfunc(&srcPtr2[j]); \
- wfunc(&dstPtr2[j], (srcpx<<(16-src_depth)) | (srcpx>>(2*src_depth-16))); \
- } \
- dstPtr2 += dstStride[plane]/2; \
- srcPtr2 += srcStride[plane]/2; \
- }
- if (isBE(c->dstFormat)) {
- if (isBE(c->srcFormat)) {
- COPY9_OR_10TO16(AV_RB16, AV_WB16);
- } else {
- COPY9_OR_10TO16(AV_RL16, AV_WB16);
- }
- } else {
- if (isBE(c->srcFormat)) {
- COPY9_OR_10TO16(AV_RB16, AV_WL16);
- } else {
- COPY9_OR_10TO16(AV_RL16, AV_WL16);
- }
- }
- } else if (is9_OR_10BPS(c->dstFormat)) {
- uint16_t *dstPtr2 = (uint16_t*)dstPtr;
-#define COPY9_OR_10TO9_OR_10(loop) \
- for (i = 0; i < height; i++) { \
- for (j = 0; j < length; j++) { \
- loop; \
- } \
- dstPtr2 += dstStride[plane]/2; \
- srcPtr2 += srcStride[plane]/2; \
- }
-#define COPY9_OR_10TO9_OR_10_2(rfunc, wfunc) \
- if (dst_depth > src_depth) { \
- COPY9_OR_10TO9_OR_10(int srcpx = rfunc(&srcPtr2[j]); \
- wfunc(&dstPtr2[j], (srcpx << 1) | (srcpx >> 9))); \
- } else if (dst_depth < src_depth) { \
- COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]) >> 1)); \
- } else { \
- COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]))); \
- }
- if (isBE(c->dstFormat)) {
- if (isBE(c->srcFormat)) {
- COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WB16);
- } else {
- COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WB16);
- }
- } else {
- if (isBE(c->srcFormat)) {
- COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WL16);
- } else {
- COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WL16);
- }
- }
- } else {
- // FIXME Maybe dither instead.
-#define COPY9_OR_10TO8(rfunc) \
- for (i = 0; i < height; i++) { \
- for (j = 0; j < length; j++) { \
- dstPtr[j] = rfunc(&srcPtr2[j])>>(src_depth-8); \
- } \
- dstPtr += dstStride[plane]; \
- srcPtr2 += srcStride[plane]/2; \
- }
- if (isBE(c->srcFormat)) {
- COPY9_OR_10TO8(AV_RB16);
- } else {
- COPY9_OR_10TO8(AV_RL16);
- }
- }
- } else if(is9_OR_10BPS(c->dstFormat)) {
- const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1;
- uint16_t *dstPtr2 = (uint16_t*)dstPtr;
-
- if (is16BPS(c->srcFormat)) {
- const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;
-#define COPY16TO9_OR_10(rfunc, wfunc) \
- for (i = 0; i < height; i++) { \
- for (j = 0; j < length; j++) { \
- wfunc(&dstPtr2[j], rfunc(&srcPtr2[j])>>(16-dst_depth)); \
- } \
- dstPtr2 += dstStride[plane]/2; \
- srcPtr2 += srcStride[plane]/2; \
- }
- if (isBE(c->dstFormat)) {
- if (isBE(c->srcFormat)) {
- COPY16TO9_OR_10(AV_RB16, AV_WB16);
- } else {
- COPY16TO9_OR_10(AV_RL16, AV_WB16);
- }
- } else {
- if (isBE(c->srcFormat)) {
- COPY16TO9_OR_10(AV_RB16, AV_WL16);
- } else {
- COPY16TO9_OR_10(AV_RL16, AV_WL16);
- }
- }
- } else /* 8bit */ {
-#define COPY8TO9_OR_10(wfunc) \
- for (i = 0; i < height; i++) { \
- for (j = 0; j < length; j++) { \
- const int srcpx = srcPtr[j]; \
- wfunc(&dstPtr2[j], (srcpx<<(dst_depth-8)) | (srcpx >> (16-dst_depth))); \
- } \
- dstPtr2 += dstStride[plane]/2; \
- srcPtr += srcStride[plane]; \
- }
- if (isBE(c->dstFormat)) {
- COPY8TO9_OR_10(AV_WB16);
- } else {
- COPY8TO9_OR_10(AV_WL16);
- }
- }
- } else if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {
- if (!isBE(c->srcFormat)) srcPtr++;
- for (i=0; i<height; i++) {
- for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
- srcPtr+= srcStride[plane];
- dstPtr+= dstStride[plane];
- }
- } else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {
- for (i=0; i<height; i++) {
- for (j=0; j<length; j++) {
- dstPtr[ j<<1 ] = srcPtr[j];
- dstPtr[(j<<1)+1] = srcPtr[j];
- }
- srcPtr+= srcStride[plane];
- dstPtr+= dstStride[plane];
- }
- } else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)
- && isBE(c->srcFormat) != isBE(c->dstFormat)) {
-
- for (i=0; i<height; i++) {
- for (j=0; j<length; j++)
- ((uint16_t*)dstPtr)[j] = av_bswap16(((const uint16_t*)srcPtr)[j]);
- srcPtr+= srcStride[plane];
- dstPtr+= dstStride[plane];
- }
- } else if (dstStride[plane] == srcStride[plane] &&
- srcStride[plane] > 0 && srcStride[plane] == length) {
- memcpy(dst[plane] + dstStride[plane]*y, src[plane],
- height*dstStride[plane]);
- } else {
- if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
- length*=2;
- for (i=0; i<height; i++) {
- memcpy(dstPtr, srcPtr, length);
- srcPtr+= srcStride[plane];
- dstPtr+= dstStride[plane];
- }
- }
- }
- }
- return srcSliceH;
-}
-
-void ff_get_unscaled_swscale(SwsContext *c)
-{
- const enum PixelFormat srcFormat = c->srcFormat;
- const enum PixelFormat dstFormat = c->dstFormat;
- const int flags = c->flags;
- const int dstH = c->dstH;
- int needsDither;
-
- needsDither= isAnyRGB(dstFormat)
- && c->dstFormatBpp < 24
- && (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
-
- /* yv12_to_nv12 */
- if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {
- c->swScale= planarToNv12Wrapper;
- }
- /* yuv2bgr */
- if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && isAnyRGB(dstFormat)
- && !(flags & SWS_ACCURATE_RND) && !(dstH&1)) {
- c->swScale= ff_yuv2rgb_get_func_ptr(c);
- }
-
- if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) {
- c->swScale= yvu9ToYv12Wrapper;
- }
-
- /* bgr24toYV12 */
- if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))
- c->swScale= bgr24ToYv12Wrapper;
-
- /* RGB/BGR -> RGB/BGR (no dither needed forms) */
- if ( isAnyRGB(srcFormat)
- && isAnyRGB(dstFormat)
- && srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
- && srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
- && srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
- && srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
- && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
- && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
- && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
- && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE
- && srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE
- && srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE
- && srcFormat != PIX_FMT_BGR48LE && dstFormat != PIX_FMT_BGR48LE
- && srcFormat != PIX_FMT_BGR48BE && dstFormat != PIX_FMT_BGR48BE
- && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
- c->swScale= rgbToRgbWrapper;
-
- if ((usePal(srcFormat) && (
- dstFormat == PIX_FMT_RGB32 ||
- dstFormat == PIX_FMT_RGB32_1 ||
- dstFormat == PIX_FMT_RGB24 ||
- dstFormat == PIX_FMT_BGR32 ||
- dstFormat == PIX_FMT_BGR32_1 ||
- dstFormat == PIX_FMT_BGR24)))
- c->swScale= palToRgbWrapper;
-
- if (srcFormat == PIX_FMT_YUV422P) {
- if (dstFormat == PIX_FMT_YUYV422)
- c->swScale= yuv422pToYuy2Wrapper;
- else if (dstFormat == PIX_FMT_UYVY422)
- c->swScale= yuv422pToUyvyWrapper;
- }
-
- /* LQ converters if -sws 0 or -sws 4*/
- if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
- /* yv12_to_yuy2 */
- if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) {
- if (dstFormat == PIX_FMT_YUYV422)
- c->swScale= planarToYuy2Wrapper;
- else if (dstFormat == PIX_FMT_UYVY422)
- c->swScale= planarToUyvyWrapper;
- }
- }
- if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
- c->swScale= yuyvToYuv420Wrapper;
- if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
- c->swScale= uyvyToYuv420Wrapper;
- if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
- c->swScale= yuyvToYuv422Wrapper;
- if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
- c->swScale= uyvyToYuv422Wrapper;
-
- /* simple copy */
- if ( srcFormat == dstFormat
- || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)
- || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)
- || (isPlanarYUV(srcFormat) && isGray(dstFormat))
- || (isPlanarYUV(dstFormat) && isGray(srcFormat))
- || (isGray(dstFormat) && isGray(srcFormat))
- || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)
- && c->chrDstHSubSample == c->chrSrcHSubSample
- && c->chrDstVSubSample == c->chrSrcVSubSample
- && dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21
- && srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21))
- {
- if (isPacked(c->srcFormat))
- c->swScale= packedCopyWrapper;
- else /* Planar YUV or gray */
- c->swScale= planarCopyWrapper;
- }
-
- if (ARCH_BFIN)
- ff_bfin_get_unscaled_swscale(c);
- if (HAVE_ALTIVEC)
- ff_swscale_get_unscaled_altivec(c);
-}
-
-static void reset_ptr(const uint8_t* src[], int format)
-{
- if(!isALPHA(format))
- src[3]=NULL;
- if(!isPlanarYUV(format)) {
- src[3]=src[2]=NULL;
-
- if (!usePal(format))
- src[1]= NULL;
- }
-}
-
-static int check_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt,
- const int linesizes[4])
-{
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
- int i;
-
- for (i = 0; i < 4; i++) {
- int plane = desc->comp[i].plane;
- if (!data[plane] || !linesizes[plane])
- return 0;
- }
-
- return 1;
-}
-
-/**
- * swscale wrapper, so we don't need to export the SwsContext.
- * Assumes planar YUV to be in YUV order instead of YVU.
- */
-int sws_scale(SwsContext *c, const uint8_t* const src[], const int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* const dst[], const int dstStride[])
-{
- int i;
- const uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};
- uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};
-
- // do not mess up sliceDir if we have a "trailing" 0-size slice
- if (srcSliceH == 0)
- return 0;
-
- if (!check_image_pointers(src, c->srcFormat, srcStride)) {
- av_log(c, AV_LOG_ERROR, "bad src image pointers\n");
- return 0;
- }
- if (!check_image_pointers(dst, c->dstFormat, dstStride)) {
- av_log(c, AV_LOG_ERROR, "bad dst image pointers\n");
- return 0;
- }
-
- if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
- av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
- return 0;
- }
- if (c->sliceDir == 0) {
- if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
- }
-
- if (usePal(c->srcFormat)) {
- for (i=0; i<256; i++) {
- int p, r, g, b,y,u,v;
- if(c->srcFormat == PIX_FMT_PAL8) {
- p=((const uint32_t*)(src[1]))[i];
- r= (p>>16)&0xFF;
- g= (p>> 8)&0xFF;
- b= p &0xFF;
- } else if(c->srcFormat == PIX_FMT_RGB8) {
- r= (i>>5 )*36;
- g= ((i>>2)&7)*36;
- b= (i&3 )*85;
- } else if(c->srcFormat == PIX_FMT_BGR8) {
- b= (i>>6 )*85;
- g= ((i>>3)&7)*36;
- r= (i&7 )*36;
- } else if(c->srcFormat == PIX_FMT_RGB4_BYTE) {
- r= (i>>3 )*255;
- g= ((i>>1)&3)*85;
- b= (i&1 )*255;
- } else if(c->srcFormat == PIX_FMT_GRAY8 || c->srcFormat == PIX_FMT_Y400A) {
- r = g = b = i;
- } else {
- assert(c->srcFormat == PIX_FMT_BGR4_BYTE);
- b= (i>>3 )*255;
- g= ((i>>1)&3)*85;
- r= (i&1 )*255;
- }
- y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
- u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
- v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
- c->pal_yuv[i]= y + (u<<8) + (v<<16);
-
- switch(c->dstFormat) {
- case PIX_FMT_BGR32:
-#if !HAVE_BIGENDIAN
- case PIX_FMT_RGB24:
-#endif
- c->pal_rgb[i]= r + (g<<8) + (b<<16);
- break;
- case PIX_FMT_BGR32_1:
-#if HAVE_BIGENDIAN
- case PIX_FMT_BGR24:
-#endif
- c->pal_rgb[i]= (r + (g<<8) + (b<<16)) << 8;
- break;
- case PIX_FMT_RGB32_1:
-#if HAVE_BIGENDIAN
- case PIX_FMT_RGB24:
-#endif
- c->pal_rgb[i]= (b + (g<<8) + (r<<16)) << 8;
- break;
- case PIX_FMT_RGB32:
-#if !HAVE_BIGENDIAN
- case PIX_FMT_BGR24:
-#endif
- default:
- c->pal_rgb[i]= b + (g<<8) + (r<<16);
- }
- }
- }
-
- // copy strides, so they can safely be modified
- if (c->sliceDir == 1) {
- // slices go from top to bottom
- int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};
- int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};
-
- reset_ptr(src2, c->srcFormat);
- reset_ptr((const uint8_t**)dst2, c->dstFormat);
-
- /* reset slice direction at end of frame */
- if (srcSliceY + srcSliceH == c->srcH)
- c->sliceDir = 0;
-
- return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);
- } else {
- // slices go from bottom to top => we flip the image internally
- int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]};
- int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]};
-
- src2[0] += (srcSliceH-1)*srcStride[0];
- if (!usePal(c->srcFormat))
- src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
- src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
- src2[3] += (srcSliceH-1)*srcStride[3];
- dst2[0] += ( c->dstH -1)*dstStride[0];
- dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];
- dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];
- dst2[3] += ( c->dstH -1)*dstStride[3];
-
- reset_ptr(src2, c->srcFormat);
- reset_ptr((const uint8_t**)dst2, c->dstFormat);
-
- /* reset slice direction at end of frame */
- if (!srcSliceY)
- c->sliceDir = 0;
-
- return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
- }
-}
-
-/* Convert the palette to the same packed 32-bit format as the palette */
-void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
-{
- int i;
-
- for (i=0; i<num_pixels; i++)
- ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
-}
-
-/* Palette format: ABCD -> dst format: ABC */
-void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
-{
- int i;
-
- for (i=0; i<num_pixels; i++) {
- //FIXME slow?
- dst[0]= palette[src[i]*4+0];
- dst[1]= palette[src[i]*4+1];
- dst[2]= palette[src[i]*4+2];
- dst+= 3;
- }
-}
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index 678d6d5..6aaa843 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -464,6 +464,13 @@ const char *sws_format_name(enum PixelFormat format);
|| (x)==PIX_FMT_Y400A \
|| (x)==PIX_FMT_YUVA420P \
)
+#define isPacked(x) ( \
+ (x)==PIX_FMT_PAL8 \
+ || (x)==PIX_FMT_YUYV422 \
+ || (x)==PIX_FMT_UYVY422 \
+ || (x)==PIX_FMT_Y400A \
+ || isAnyRGB(x) \
+ )
#define usePal(x) ((av_pix_fmt_descriptors[x].flags & PIX_FMT_PAL) || (x) == PIX_FMT_Y400A)
extern const uint64_t ff_dither4[2];
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
new file mode 100644
index 0000000..87cd655
--- /dev/null
+++ b/libswscale/swscale_unscaled.c
@@ -0,0 +1,887 @@
+/*
+ * Copyright (C) 2001-2003 Michael Niedermayer <michaelni at gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <inttypes.h>
+#include <string.h>
+#include <math.h>
+#include <stdio.h>
+#include "config.h"
+#include <assert.h>
+#include "swscale.h"
+#include "swscale_internal.h"
+#include "rgb2rgb.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/cpu.h"
+#include "libavutil/avutil.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/bswap.h"
+#include "libavutil/pixdesc.h"
+
+#define RGB2YUV_SHIFT 15
+#define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
+#define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
+#define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
+#define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
+#define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
+#define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
+#define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
+#define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
+#define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
+
+static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val)
+{
+ int i;
+ uint8_t *ptr = plane + stride*y;
+ for (i=0; i<height; i++) {
+ memset(ptr, val, width);
+ ptr += stride;
+ }
+}
+
+static void copyPlane(const uint8_t *src, int srcStride,
+ int srcSliceY, int srcSliceH, int width,
+ uint8_t *dst, int dstStride)
+{
+ dst += dstStride * srcSliceY;
+ if (dstStride == srcStride && srcStride > 0) {
+ memcpy(dst, src, srcSliceH * dstStride);
+ } else {
+ int i;
+ for (i=0; i<srcSliceH; i++) {
+ memcpy(dst, src, width);
+ src += srcStride;
+ dst += dstStride;
+ }
+ }
+}
+
+static int planarToNv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *dst = dstParam[1] + dstStride[1]*srcSliceY/2;
+
+ copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
+ dstParam[0], dstStride[0]);
+
+ if (c->dstFormat == PIX_FMT_NV12)
+ interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);
+ else
+ interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);
+
+ return srcSliceH;
+}
+
+static int planarToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
+
+ yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
+
+ return srcSliceH;
+}
+
+static int planarToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
+
+ yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
+
+ return srcSliceH;
+}
+
+static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
+
+ yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
+
+ return srcSliceH;
+}
+
+static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
+
+ yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
+
+ return srcSliceH;
+}
+
+static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
+ uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
+ uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
+
+ yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
+
+ if (dstParam[3])
+ fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
+
+ return srcSliceH;
+}
+
+static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
+ uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
+ uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
+
+ yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
+
+ return srcSliceH;
+}
+
+static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
+ uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
+ uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
+
+ uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
+
+ if (dstParam[3])
+ fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
+
+ return srcSliceH;
+}
+
+static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dstParam[], int dstStride[])
+{
+ uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
+ uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
+ uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
+
+ uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
+
+ return srcSliceH;
+}
+
+static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+{
+ int i;
+ for (i=0; i<num_pixels; i++)
+ ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | (src[(i<<1)+1] << 24);
+}
+
+static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+{
+ int i;
+
+ for (i=0; i<num_pixels; i++)
+ ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | src[(i<<1)+1];
+}
+
+static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+{
+ int i;
+
+ for (i=0; i<num_pixels; i++) {
+ //FIXME slow?
+ dst[0]= palette[src[i<<1]*4+0];
+ dst[1]= palette[src[i<<1]*4+1];
+ dst[2]= palette[src[i<<1]*4+2];
+ dst+= 3;
+ }
+}
+
+static int palToRgbWrapper(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;
+ void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels,
+ const uint8_t *palette)=NULL;
+ int i;
+ uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
+ const uint8_t *srcPtr= src[0];
+
+ if (srcFormat == PIX_FMT_Y400A) {
+ switch (dstFormat) {
+ case PIX_FMT_RGB32 : conv = gray8aToPacked32; break;
+ case PIX_FMT_BGR32 : conv = gray8aToPacked32; break;
+ case PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
+ case PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
+ case PIX_FMT_RGB24 : conv = gray8aToPacked24; break;
+ case PIX_FMT_BGR24 : conv = gray8aToPacked24; break;
+ }
+ } else if (usePal(srcFormat)) {
+ switch (dstFormat) {
+ case PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
+ case PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
+ case PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
+ case PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
+ case PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
+ case PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
+ }
+ }
+
+ if (!conv)
+ av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
+ sws_format_name(srcFormat), sws_format_name(dstFormat));
+ else {
+ for (i=0; i<srcSliceH; i++) {
+ conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
+ srcPtr+= srcStride[0];
+ dstPtr+= dstStride[0];
+ }
+ }
+
+ return srcSliceH;
+}
+
+#define isRGBA32(x) ( \
+ (x) == PIX_FMT_ARGB \
+ || (x) == PIX_FMT_RGBA \
+ || (x) == PIX_FMT_BGRA \
+ || (x) == PIX_FMT_ABGR \
+ )
+
+/* {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 int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dst[], int dstStride[])
+{
+ rgb24toyv12(
+ src[0],
+ dst[0]+ srcSliceY *dstStride[0],
+ dst[1]+(srcSliceY>>1)*dstStride[1],
+ dst[2]+(srcSliceY>>1)*dstStride[2],
+ c->srcW, srcSliceH,
+ dstStride[0], dstStride[1], srcStride[0]);
+ if (dst[3])
+ fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
+ return srcSliceH;
+}
+
+static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dst[], int dstStride[])
+{
+ copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
+ dst[0], dstStride[0]);
+
+ planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
+ srcSliceH >> 2, srcStride[1], dstStride[1]);
+ planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
+ srcSliceH >> 2, srcStride[2], dstStride[2]);
+ if (dst[3])
+ fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
+ return srcSliceH;
+}
+
+/* unscaled copy like stuff (assumes nearly identical formats) */
+static int packedCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dst[], int dstStride[])
+{
+ if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
+ memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
+ else {
+ int i;
+ const uint8_t *srcPtr= src[0];
+ uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
+ int length=0;
+
+ /* universal length finder */
+ while(length+c->srcW <= FFABS(dstStride[0])
+ && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
+ assert(length!=0);
+
+ for (i=0; i<srcSliceH; i++) {
+ memcpy(dstPtr, srcPtr, length);
+ srcPtr+= srcStride[0];
+ dstPtr+= dstStride[0];
+ }
+ }
+ return srcSliceH;
+}
+
+static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* dst[], int dstStride[])
+{
+ int plane, i, j;
+ for (plane=0; plane<4; plane++) {
+ int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
+ int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
+ int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
+ const uint8_t *srcPtr= src[plane];
+ uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
+
+ if (!dst[plane]) continue;
+ // ignore palette for GRAY8
+ if (plane == 1 && !dst[2]) continue;
+ if (!src[plane] || (plane == 1 && !src[2])) {
+ if(is16BPS(c->dstFormat))
+ length*=2;
+ fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);
+ } else {
+ if(is9_OR_10BPS(c->srcFormat)) {
+ const int src_depth = av_pix_fmt_descriptors[c->srcFormat].comp[plane].depth_minus1+1;
+ const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1;
+ const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;
+
+ if (is16BPS(c->dstFormat)) {
+ uint16_t *dstPtr2 = (uint16_t*)dstPtr;
+#define COPY9_OR_10TO16(rfunc, wfunc) \
+ for (i = 0; i < height; i++) { \
+ for (j = 0; j < length; j++) { \
+ int srcpx = rfunc(&srcPtr2[j]); \
+ wfunc(&dstPtr2[j], (srcpx<<(16-src_depth)) | (srcpx>>(2*src_depth-16))); \
+ } \
+ dstPtr2 += dstStride[plane]/2; \
+ srcPtr2 += srcStride[plane]/2; \
+ }
+ if (isBE(c->dstFormat)) {
+ if (isBE(c->srcFormat)) {
+ COPY9_OR_10TO16(AV_RB16, AV_WB16);
+ } else {
+ COPY9_OR_10TO16(AV_RL16, AV_WB16);
+ }
+ } else {
+ if (isBE(c->srcFormat)) {
+ COPY9_OR_10TO16(AV_RB16, AV_WL16);
+ } else {
+ COPY9_OR_10TO16(AV_RL16, AV_WL16);
+ }
+ }
+ } else if (is9_OR_10BPS(c->dstFormat)) {
+ uint16_t *dstPtr2 = (uint16_t*)dstPtr;
+#define COPY9_OR_10TO9_OR_10(loop) \
+ for (i = 0; i < height; i++) { \
+ for (j = 0; j < length; j++) { \
+ loop; \
+ } \
+ dstPtr2 += dstStride[plane]/2; \
+ srcPtr2 += srcStride[plane]/2; \
+ }
+#define COPY9_OR_10TO9_OR_10_2(rfunc, wfunc) \
+ if (dst_depth > src_depth) { \
+ COPY9_OR_10TO9_OR_10(int srcpx = rfunc(&srcPtr2[j]); \
+ wfunc(&dstPtr2[j], (srcpx << 1) | (srcpx >> 9))); \
+ } else if (dst_depth < src_depth) { \
+ COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]) >> 1)); \
+ } else { \
+ COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]))); \
+ }
+ if (isBE(c->dstFormat)) {
+ if (isBE(c->srcFormat)) {
+ COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WB16);
+ } else {
+ COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WB16);
+ }
+ } else {
+ if (isBE(c->srcFormat)) {
+ COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WL16);
+ } else {
+ COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WL16);
+ }
+ }
+ } else {
+ // FIXME Maybe dither instead.
+#define COPY9_OR_10TO8(rfunc) \
+ for (i = 0; i < height; i++) { \
+ for (j = 0; j < length; j++) { \
+ dstPtr[j] = rfunc(&srcPtr2[j])>>(src_depth-8); \
+ } \
+ dstPtr += dstStride[plane]; \
+ srcPtr2 += srcStride[plane]/2; \
+ }
+ if (isBE(c->srcFormat)) {
+ COPY9_OR_10TO8(AV_RB16);
+ } else {
+ COPY9_OR_10TO8(AV_RL16);
+ }
+ }
+ } else if(is9_OR_10BPS(c->dstFormat)) {
+ const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1;
+ uint16_t *dstPtr2 = (uint16_t*)dstPtr;
+
+ if (is16BPS(c->srcFormat)) {
+ const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;
+#define COPY16TO9_OR_10(rfunc, wfunc) \
+ for (i = 0; i < height; i++) { \
+ for (j = 0; j < length; j++) { \
+ wfunc(&dstPtr2[j], rfunc(&srcPtr2[j])>>(16-dst_depth)); \
+ } \
+ dstPtr2 += dstStride[plane]/2; \
+ srcPtr2 += srcStride[plane]/2; \
+ }
+ if (isBE(c->dstFormat)) {
+ if (isBE(c->srcFormat)) {
+ COPY16TO9_OR_10(AV_RB16, AV_WB16);
+ } else {
+ COPY16TO9_OR_10(AV_RL16, AV_WB16);
+ }
+ } else {
+ if (isBE(c->srcFormat)) {
+ COPY16TO9_OR_10(AV_RB16, AV_WL16);
+ } else {
+ COPY16TO9_OR_10(AV_RL16, AV_WL16);
+ }
+ }
+ } else /* 8bit */ {
+#define COPY8TO9_OR_10(wfunc) \
+ for (i = 0; i < height; i++) { \
+ for (j = 0; j < length; j++) { \
+ const int srcpx = srcPtr[j]; \
+ wfunc(&dstPtr2[j], (srcpx<<(dst_depth-8)) | (srcpx >> (16-dst_depth))); \
+ } \
+ dstPtr2 += dstStride[plane]/2; \
+ srcPtr += srcStride[plane]; \
+ }
+ if (isBE(c->dstFormat)) {
+ COPY8TO9_OR_10(AV_WB16);
+ } else {
+ COPY8TO9_OR_10(AV_WL16);
+ }
+ }
+ } else if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {
+ if (!isBE(c->srcFormat)) srcPtr++;
+ for (i=0; i<height; i++) {
+ for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
+ srcPtr+= srcStride[plane];
+ dstPtr+= dstStride[plane];
+ }
+ } else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {
+ for (i=0; i<height; i++) {
+ for (j=0; j<length; j++) {
+ dstPtr[ j<<1 ] = srcPtr[j];
+ dstPtr[(j<<1)+1] = srcPtr[j];
+ }
+ srcPtr+= srcStride[plane];
+ dstPtr+= dstStride[plane];
+ }
+ } else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)
+ && isBE(c->srcFormat) != isBE(c->dstFormat)) {
+
+ for (i=0; i<height; i++) {
+ for (j=0; j<length; j++)
+ ((uint16_t*)dstPtr)[j] = av_bswap16(((const uint16_t*)srcPtr)[j]);
+ srcPtr+= srcStride[plane];
+ dstPtr+= dstStride[plane];
+ }
+ } else if (dstStride[plane] == srcStride[plane] &&
+ srcStride[plane] > 0 && srcStride[plane] == length) {
+ memcpy(dst[plane] + dstStride[plane]*y, src[plane],
+ height*dstStride[plane]);
+ } else {
+ if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
+ length*=2;
+ for (i=0; i<height; i++) {
+ memcpy(dstPtr, srcPtr, length);
+ srcPtr+= srcStride[plane];
+ dstPtr+= dstStride[plane];
+ }
+ }
+ }
+ }
+ return srcSliceH;
+}
+
+void ff_get_unscaled_swscale(SwsContext *c)
+{
+ const enum PixelFormat srcFormat = c->srcFormat;
+ const enum PixelFormat dstFormat = c->dstFormat;
+ const int flags = c->flags;
+ const int dstH = c->dstH;
+ int needsDither;
+
+ needsDither= isAnyRGB(dstFormat)
+ && c->dstFormatBpp < 24
+ && (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
+
+ /* yv12_to_nv12 */
+ if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {
+ c->swScale= planarToNv12Wrapper;
+ }
+ /* yuv2bgr */
+ if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && isAnyRGB(dstFormat)
+ && !(flags & SWS_ACCURATE_RND) && !(dstH&1)) {
+ c->swScale= ff_yuv2rgb_get_func_ptr(c);
+ }
+
+ if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) {
+ c->swScale= yvu9ToYv12Wrapper;
+ }
+
+ /* bgr24toYV12 */
+ if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))
+ c->swScale= bgr24ToYv12Wrapper;
+
+ /* RGB/BGR -> RGB/BGR (no dither needed forms) */
+ if ( isAnyRGB(srcFormat)
+ && isAnyRGB(dstFormat)
+ && srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
+ && srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
+ && srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
+ && srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
+ && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
+ && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
+ && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
+ && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE
+ && srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE
+ && srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE
+ && srcFormat != PIX_FMT_BGR48LE && dstFormat != PIX_FMT_BGR48LE
+ && srcFormat != PIX_FMT_BGR48BE && dstFormat != PIX_FMT_BGR48BE
+ && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
+ c->swScale= rgbToRgbWrapper;
+
+ if ((usePal(srcFormat) && (
+ dstFormat == PIX_FMT_RGB32 ||
+ dstFormat == PIX_FMT_RGB32_1 ||
+ dstFormat == PIX_FMT_RGB24 ||
+ dstFormat == PIX_FMT_BGR32 ||
+ dstFormat == PIX_FMT_BGR32_1 ||
+ dstFormat == PIX_FMT_BGR24)))
+ c->swScale= palToRgbWrapper;
+
+ if (srcFormat == PIX_FMT_YUV422P) {
+ if (dstFormat == PIX_FMT_YUYV422)
+ c->swScale= yuv422pToYuy2Wrapper;
+ else if (dstFormat == PIX_FMT_UYVY422)
+ c->swScale= yuv422pToUyvyWrapper;
+ }
+
+ /* LQ converters if -sws 0 or -sws 4*/
+ if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
+ /* yv12_to_yuy2 */
+ if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) {
+ if (dstFormat == PIX_FMT_YUYV422)
+ c->swScale= planarToYuy2Wrapper;
+ else if (dstFormat == PIX_FMT_UYVY422)
+ c->swScale= planarToUyvyWrapper;
+ }
+ }
+ if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
+ c->swScale= yuyvToYuv420Wrapper;
+ if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
+ c->swScale= uyvyToYuv420Wrapper;
+ if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
+ c->swScale= yuyvToYuv422Wrapper;
+ if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
+ c->swScale= uyvyToYuv422Wrapper;
+
+ /* simple copy */
+ if ( srcFormat == dstFormat
+ || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)
+ || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)
+ || (isPlanarYUV(srcFormat) && isGray(dstFormat))
+ || (isPlanarYUV(dstFormat) && isGray(srcFormat))
+ || (isGray(dstFormat) && isGray(srcFormat))
+ || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)
+ && c->chrDstHSubSample == c->chrSrcHSubSample
+ && c->chrDstVSubSample == c->chrSrcVSubSample
+ && dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21
+ && srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21))
+ {
+ if (isPacked(c->srcFormat))
+ c->swScale= packedCopyWrapper;
+ else /* Planar YUV or gray */
+ c->swScale= planarCopyWrapper;
+ }
+
+ if (ARCH_BFIN)
+ ff_bfin_get_unscaled_swscale(c);
+ if (HAVE_ALTIVEC)
+ ff_swscale_get_unscaled_altivec(c);
+}
+
+static void reset_ptr(const uint8_t* src[], int format)
+{
+ if(!isALPHA(format))
+ src[3]=NULL;
+ if(!isPlanarYUV(format)) {
+ src[3]=src[2]=NULL;
+
+ if (!usePal(format))
+ src[1]= NULL;
+ }
+}
+
+static int check_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt,
+ const int linesizes[4])
+{
+ const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ int plane = desc->comp[i].plane;
+ if (!data[plane] || !linesizes[plane])
+ return 0;
+ }
+
+ return 1;
+}
+
+/**
+ * swscale wrapper, so we don't need to export the SwsContext.
+ * Assumes planar YUV to be in YUV order instead of YVU.
+ */
+int sws_scale(SwsContext *c, const uint8_t* const src[], const int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t* const dst[], const int dstStride[])
+{
+ int i;
+ const uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};
+ uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};
+
+ // do not mess up sliceDir if we have a "trailing" 0-size slice
+ if (srcSliceH == 0)
+ return 0;
+
+ if (!check_image_pointers(src, c->srcFormat, srcStride)) {
+ av_log(c, AV_LOG_ERROR, "bad src image pointers\n");
+ return 0;
+ }
+ if (!check_image_pointers(dst, c->dstFormat, dstStride)) {
+ av_log(c, AV_LOG_ERROR, "bad dst image pointers\n");
+ return 0;
+ }
+
+ if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
+ av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
+ return 0;
+ }
+ if (c->sliceDir == 0) {
+ if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
+ }
+
+ if (usePal(c->srcFormat)) {
+ for (i=0; i<256; i++) {
+ int p, r, g, b,y,u,v;
+ if(c->srcFormat == PIX_FMT_PAL8) {
+ p=((const uint32_t*)(src[1]))[i];
+ r= (p>>16)&0xFF;
+ g= (p>> 8)&0xFF;
+ b= p &0xFF;
+ } else if(c->srcFormat == PIX_FMT_RGB8) {
+ r= (i>>5 )*36;
+ g= ((i>>2)&7)*36;
+ b= (i&3 )*85;
+ } else if(c->srcFormat == PIX_FMT_BGR8) {
+ b= (i>>6 )*85;
+ g= ((i>>3)&7)*36;
+ r= (i&7 )*36;
+ } else if(c->srcFormat == PIX_FMT_RGB4_BYTE) {
+ r= (i>>3 )*255;
+ g= ((i>>1)&3)*85;
+ b= (i&1 )*255;
+ } else if(c->srcFormat == PIX_FMT_GRAY8 || c->srcFormat == PIX_FMT_Y400A) {
+ r = g = b = i;
+ } else {
+ assert(c->srcFormat == PIX_FMT_BGR4_BYTE);
+ b= (i>>3 )*255;
+ g= ((i>>1)&3)*85;
+ r= (i&1 )*255;
+ }
+ y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
+ u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
+ v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
+ c->pal_yuv[i]= y + (u<<8) + (v<<16);
+
+ switch(c->dstFormat) {
+ case PIX_FMT_BGR32:
+#if !HAVE_BIGENDIAN
+ case PIX_FMT_RGB24:
+#endif
+ c->pal_rgb[i]= r + (g<<8) + (b<<16);
+ break;
+ case PIX_FMT_BGR32_1:
+#if HAVE_BIGENDIAN
+ case PIX_FMT_BGR24:
+#endif
+ c->pal_rgb[i]= (r + (g<<8) + (b<<16)) << 8;
+ break;
+ case PIX_FMT_RGB32_1:
+#if HAVE_BIGENDIAN
+ case PIX_FMT_RGB24:
+#endif
+ c->pal_rgb[i]= (b + (g<<8) + (r<<16)) << 8;
+ break;
+ case PIX_FMT_RGB32:
+#if !HAVE_BIGENDIAN
+ case PIX_FMT_BGR24:
+#endif
+ default:
+ c->pal_rgb[i]= b + (g<<8) + (r<<16);
+ }
+ }
+ }
+
+ // copy strides, so they can safely be modified
+ if (c->sliceDir == 1) {
+ // slices go from top to bottom
+ int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};
+ int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};
+
+ reset_ptr(src2, c->srcFormat);
+ reset_ptr((const uint8_t**)dst2, c->dstFormat);
+
+ /* reset slice direction at end of frame */
+ if (srcSliceY + srcSliceH == c->srcH)
+ c->sliceDir = 0;
+
+ return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);
+ } else {
+ // slices go from bottom to top => we flip the image internally
+ int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]};
+ int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]};
+
+ src2[0] += (srcSliceH-1)*srcStride[0];
+ if (!usePal(c->srcFormat))
+ src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
+ src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
+ src2[3] += (srcSliceH-1)*srcStride[3];
+ dst2[0] += ( c->dstH -1)*dstStride[0];
+ dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];
+ dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];
+ dst2[3] += ( c->dstH -1)*dstStride[3];
+
+ reset_ptr(src2, c->srcFormat);
+ reset_ptr((const uint8_t**)dst2, c->dstFormat);
+
+ /* reset slice direction at end of frame */
+ if (!srcSliceY)
+ c->sliceDir = 0;
+
+ return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
+ }
+}
+
+/* Convert the palette to the same packed 32-bit format as the palette */
+void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+{
+ int i;
+
+ for (i=0; i<num_pixels; i++)
+ ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
+}
+
+/* Palette format: ABCD -> dst format: ABC */
+void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
+{
+ int i;
+
+ for (i=0; i<num_pixels; i++) {
+ //FIXME slow?
+ dst[0]= palette[src[i]*4+0];
+ dst[1]= palette[src[i]*4+1];
+ dst[2]= palette[src[i]*4+2];
+ dst+= 3;
+ }
+}
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