ffmpeg roll of source to mar 9 version...

patched-ffmpeg-mt/libswscale/swscale.c

 /*
  * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * FFmpeg 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 General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  *
  * the C code (not assembly, mmx, ...) of this file can be used
  * under the LGPL license too
  */
 
 /*
   supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8
   supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
   {BGR,RGB}{1,4,8,15,16} support dithering
 
   unscaled special converters (YV12=I420=IYUV, Y800=Y8)
-  YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
+  YV12 -> {BGR,RGB}{1,4,8,12,15,16,24,32}
   x -> x
   YUV9 -> YV12
   YUV9/YV12 -> Y800
   Y800 -> YUV9/YV12
   BGR24 -> BGR32 & RGB24 -> RGB32
   BGR32 -> BGR24 & RGB32 -> RGB24
   BGR15 -> BGR16
 */
 
 /*
@@ skipping 42 matching lines @@
 #ifdef M_PI
 #define PI M_PI
 #else
 #define PI 3.14159265358979323846
 #endif
 
 #define isPacked(x)         (       \
            (x)==PIX_FMT_PAL8        \
         || (x)==PIX_FMT_YUYV422     \
         || (x)==PIX_FMT_UYVY422     \
-        || isRGB(x)                 \
-        || isBGR(x)                 \
+        || isAnyRGB(x)              \
     )
-#define usePal(x) (av_pix_fmt_descriptors[x].flags & PIX_FMT_PAL)
 
 #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))
@@ skipping 85 matching lines @@
 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_4)[2][8]={
 {  1,   3,   1,   3,   1,   3,   1,   3, },
 {  2,   0,   2,   0,   2,   0,   2,   0, },
 };
 
 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_8)[2][8]={
 {  6,   2,   6,   2,   6,   2,   6,   2, },
 {  0,   4,   0,   4,   0,   4,   0,   4, },
 };
 
+DECLARE_ALIGNED(8, const uint8_t, dither_4x4_16)[4][8]={
+{  8,   4,  11,   7,   8,   4,  11,   7, },
+{  2,  14,   1,  13,   2,  14,   1,  13, },
+{ 10,   6,   9,   5,  10,   6,   9,   5, },
+{  0,  12,   3,  15,   0,  12,   3,  15, },
+};
+
 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_32)[8][8]={
 { 17,   9,  23,  15,  16,   8,  22,  14, },
 {  5,  29,   3,  27,   4,  28,   2,  26, },
 { 21,  13,  19,  11,  20,  12,  18,  10, },
 {  0,  24,   6,  30,   1,  25,   7,  31, },
 { 16,   8,  22,  14,  17,   9,  23,  15, },
 {  4,  28,   2,  26,   5,  29,   3,  27, },
 { 20,  12,  18,  10,  21,  13,  19,  11, },
 {  1,  25,   7,  31,   0,  24,   6,  30, },
 };
@@ skipping 547 matching lines @@
         func(uint8_t,0)\
             ((uint8_t*)dest)[0]= b[Y1];\
             ((uint8_t*)dest)[1]= g[Y1];\
             ((uint8_t*)dest)[2]= r[Y1];\
             ((uint8_t*)dest)[3]= b[Y2];\
             ((uint8_t*)dest)[4]= g[Y2];\
             ((uint8_t*)dest)[5]= r[Y2];\
             dest+=6;\
         }\
         break;\
-    case PIX_FMT_RGB565:\
-    case PIX_FMT_BGR565:\
+    case PIX_FMT_RGB565BE:\
+    case PIX_FMT_RGB565LE:\
+    case PIX_FMT_BGR565BE:\
+    case PIX_FMT_BGR565LE:\
         {\
             const int dr1= dither_2x2_8[y&1    ][0];\
             const int dg1= dither_2x2_4[y&1    ][0];\
             const int db1= dither_2x2_8[(y&1)^1][0];\
             const int dr2= dither_2x2_8[y&1    ][1];\
             const int dg2= dither_2x2_4[y&1    ][1];\
             const int db2= dither_2x2_8[(y&1)^1][1];\
             func(uint16_t,0)\
                 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
                 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
             }\
         }\
         break;\
-    case PIX_FMT_RGB555:\
-    case PIX_FMT_BGR555:\
+    case PIX_FMT_RGB555BE:\
+    case PIX_FMT_RGB555LE:\
+    case PIX_FMT_BGR555BE:\
+    case PIX_FMT_BGR555LE:\
         {\
             const int dr1= dither_2x2_8[y&1    ][0];\
             const int dg1= dither_2x2_8[y&1    ][1];\
             const int db1= dither_2x2_8[(y&1)^1][0];\
             const int dr2= dither_2x2_8[y&1    ][1];\
             const int dg2= dither_2x2_8[y&1    ][0];\
             const int db2= dither_2x2_8[(y&1)^1][1];\
             func(uint16_t,0)\
                 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
                 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
@@ skipping 330 matching lines @@
     }
 }
 
 //Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
 //Plain C versions
 #if ((!HAVE_MMX || !CONFIG_GPL) && !HAVE_ALTIVEC) || CONFIG_RUNTIME_CPUDETECT
 #define COMPILE_C
 #endif
 
 #if ARCH_PPC
-#if HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT
+#if HAVE_ALTIVEC
 #define COMPILE_ALTIVEC
 #endif
 #endif //ARCH_PPC
 
 #if ARCH_X86
 
 #if ((HAVE_MMX && !HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
 #define COMPILE_MMX
 #endif
 
@@ skipping 82 matching lines @@
         return swScale_3DNow;
     } else if (flags & SWS_CPU_CAPS_MMX) {
         sws_init_swScale_MMX(c);
         return swScale_MMX;
     } else {
         sws_init_swScale_C(c);
         return swScale_C;
     }
 
 #else
-#if ARCH_PPC
+#if ARCH_PPC && COMPILE_ALTIVEC
     if (flags & SWS_CPU_CAPS_ALTIVEC) {
         sws_init_swScale_altivec(c);
         return swScale_altivec;
     } else {
         sws_init_swScale_C(c);
         return swScale_C;
     }
 #endif
     sws_init_swScale_C(c);
     return swScale_C;
@@ skipping 11 matching lines @@
 #elif COMPILE_TEMPLATE_ALTIVEC
     sws_init_swScale_altivec(c);
     return swScale_altivec;
 #else
     sws_init_swScale_C(c);
     return swScale_C;
 #endif
 #endif //!CONFIG_RUNTIME_CPUDETECT
 }
 
-static int PlanarToNV12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+static int planarToNv12Wrapper(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;
     /* Copy Y plane */
     if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
         memcpy(dst, src[0], srcSliceH*dstStride[0]);
     else {
         int i;
         const uint8_t *srcPtr= src[0];
         uint8_t *dstPtr= dst;
         for (i=0; i<srcSliceH; i++) {
             memcpy(dstPtr, srcPtr, c->srcW);
             srcPtr+= srcStride[0];
             dstPtr+= dstStride[0];
         }
     }
     dst = dstParam[1] + dstStride[1]*srcSliceY/2;
     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,
+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,
+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,
+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,
+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 YUYV2YUV420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+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 YUYV2YUV422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+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 UYVY2YUV420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+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 UYVY2YUV422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
+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 int pal2rgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
-                          int srcSliceH, uint8_t* dst[], int dstStride[])
+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, long num_pixels,
                  const uint8_t *palette)=NULL;
     int i;
     uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
     const uint8_t *srcPtr= src[0];
 
     if (usePal(srcFormat)) {
@@ skipping 14 matching lines @@
         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 rgb2rgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
-                          int srcSliceH, uint8_t* dst[], int dstStride[])
+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, long 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 (  (isBGR(srcFormat) && isBGR(dstFormat))
-       || (isRGB(srcFormat) && isRGB(dstFormat))) {
+    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 (  (isBGR(srcFormat) && isRGB(dstFormat))
-             || (isRGB(srcFormat) && isBGR(dstFormat))) {
+    } 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;
-        case 0x88: conv= rgb32tobgr32; 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];
-        if(srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1)
+              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, dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
+            conv(srcPtr, dstPtr + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
         else {
             int i;
-            uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
+            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,
+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,
+static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
                              int srcSliceH, uint8_t* dst[], int dstStride[])
 {
     int i;
 
     /* copy Y */
     if (srcStride[0]==dstStride[0] && srcStride[0] > 0)
         memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
     else {
         const uint8_t *srcPtr= src[0];
         uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
@@ skipping 15 matching lines @@
                  srcSliceH >> 2, srcStride[1], dstStride[2]);
         planar2x(src[2], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
                  srcSliceH >> 2, srcStride[2], dstStride[1]);
     }
     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 packedCopy(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
-                      int srcSliceH, uint8_t* dst[], int dstStride[])
+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 planarCopy(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
-                      int srcSliceH, uint8_t* dst[], int dstStride[])
+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;
@@ skipping 63 matching lines @@
 }
 
 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= (isBGR(dstFormat) || isRGB(dstFormat))
+    needsDither= isAnyRGB(dstFormat)
         &&  c->dstFormatBpp < 24
-        && (c->dstFormatBpp < c->srcFormatBpp || (!(isRGB(srcFormat) || isBGR(srcFormat))));
+        && (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;
+        c->swScale= planarToNv12Wrapper;
     }
     /* yuv2bgr */
-    if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && (isBGR(dstFormat) || isRGB(dstFormat))
+    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;
+        c->swScale= yvu9ToYv12Wrapper;
     }
 
     /* bgr24toYV12 */
     if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))
-        c->swScale= bgr24toyv12Wrapper;
+        c->swScale= bgr24ToYv12Wrapper;
 
     /* RGB/BGR -> RGB/BGR (no dither needed forms) */
-    if (  (isBGR(srcFormat) || isRGB(srcFormat))
-        && (isBGR(dstFormat) || isRGB(dstFormat))
+    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
-                                          && dstFormat != PIX_FMT_RGB32_1
-                                          && dstFormat != PIX_FMT_BGR32_1
         && srcFormat != PIX_FMT_RGB48LE   && dstFormat != PIX_FMT_RGB48LE
         && srcFormat != PIX_FMT_RGB48BE   && dstFormat != PIX_FMT_RGB48BE
         && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
-        c->swScale= rgb2rgbWrapper;
+        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= pal2rgbWrapper;
+        c->swScale= palToRgbWrapper;
 
     if (srcFormat == PIX_FMT_YUV422P) {
         if (dstFormat == PIX_FMT_YUYV422)
-            c->swScale= YUV422PToYuy2Wrapper;
+            c->swScale= yuv422pToYuy2Wrapper;
         else if (dstFormat == PIX_FMT_UYVY422)
-            c->swScale= YUV422PToUyvyWrapper;
+            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;
+                c->swScale= planarToYuy2Wrapper;
             else if (dstFormat == PIX_FMT_UYVY422)
-                c->swScale= PlanarToUyvyWrapper;
+                c->swScale= planarToUyvyWrapper;
         }
     }
     if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
-        c->swScale= YUYV2YUV420Wrapper;
+        c->swScale= yuyvToYuv420Wrapper;
     if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
-        c->swScale= UYVY2YUV420Wrapper;
+        c->swScale= uyvyToYuv420Wrapper;
     if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
-        c->swScale= YUYV2YUV422Wrapper;
+        c->swScale= yuyvToYuv422Wrapper;
     if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
-        c->swScale= UYVY2YUV422Wrapper;
+        c->swScale= uyvyToYuv422Wrapper;
 
 #ifdef COMPILE_ALTIVEC
     if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
         !(c->flags & SWS_BITEXACT) &&
         srcFormat == PIX_FMT_YUV420P) {
         // unscaled YV12 -> packed YUV, we want speed
         if (dstFormat == PIX_FMT_YUYV422)
             c->swScale= yv12toyuy2_unscaled_altivec;
         else if (dstFormat == PIX_FMT_UYVY422)
             c->swScale= yv12touyvy_unscaled_altivec;
     }
 #endif
 
     /* 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= packedCopy;
+            c->swScale= packedCopyWrapper;
         else /* Planar YUV or gray */
-            c->swScale= planarCopy;
+            c->swScale= planarCopyWrapper;
     }
 #if ARCH_BFIN
     if (flags & SWS_CPU_CAPS_BFIN)
         ff_bfin_get_unscaled_swscale (c);
 #endif
 }
 
 static void reset_ptr(const uint8_t* src[], int format)
 {
     if(!isALPHA(format))
@@ skipping 42 matching lines @@
                 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) {
+                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);
@@ skipping 67 matching lines @@
     }
 }
 
 #if LIBSWSCALE_VERSION_MAJOR < 1
 int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[], int srcSliceY,
                       int srcSliceH, uint8_t* dst[], int dstStride[])
 {
     return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
 }
 #endif