]> git.sesse.net Git - ffmpeg/blobdiff - libswscale/swscale_template.c
Remove useless casting in asm "m" operand.
[ffmpeg] / libswscale / swscale_template.c
index fa657b383c15b9662ee841627613e80259380f15..6d54fc35dfe8625e70d02bad3e89c7fa00770370 100644 (file)
 #undef EMMS
 #undef SFENCE
 
-#ifdef HAVE_3DNOW
-/* On K6 femms is faster than emms. On K7 femms is directly mapped on emms. */
+#if HAVE_AMD3DNOW
+/* On K6 femms is faster than emms. On K7 femms is directly mapped to emms. */
 #define EMMS     "femms"
 #else
 #define EMMS     "emms"
 #endif
 
-#ifdef HAVE_3DNOW
+#if HAVE_AMD3DNOW
 #define PREFETCH  "prefetch"
 #define PREFETCHW "prefetchw"
-#elif defined (HAVE_MMX2)
+#elif HAVE_MMX2
 #define PREFETCH "prefetchnta"
 #define PREFETCHW "prefetcht0"
 #else
 #define PREFETCHW " # nop"
 #endif
 
-#ifdef HAVE_MMX2
+#if HAVE_MMX2
 #define SFENCE "sfence"
 #else
 #define SFENCE " # nop"
 #endif
 
-#ifdef HAVE_MMX2
+#if HAVE_MMX2
 #define PAVGB(a,b) "pavgb " #a ", " #b " \n\t"
-#elif defined (HAVE_3DNOW)
+#elif HAVE_AMD3DNOW
 #define PAVGB(a,b) "pavgusb " #a ", " #b " \n\t"
 #endif
 
-#ifdef HAVE_MMX2
+#if HAVE_MMX2
 #define REAL_MOVNTQ(a,b) "movntq " #a ", " #b " \n\t"
 #else
 #define REAL_MOVNTQ(a,b) "movq " #a ", " #b " \n\t"
 #endif
 #define MOVNTQ(a,b)  REAL_MOVNTQ(a,b)
 
-#ifdef HAVE_ALTIVEC
+#if HAVE_ALTIVEC
 #include "swscale_altivec_template.c"
 #endif
 
 #define YSCALEYUV2YV12X(x, offset, dest, width) \
-    asm volatile(\
+    __asm__ volatile(\
     "xor                          %%"REG_a", %%"REG_a"  \n\t"\
     "movq             "VROUNDER_OFFSET"(%0), %%mm3      \n\t"\
     "movq                             %%mm3, %%mm4      \n\t"\
     );
 
 #define YSCALEYUV2YV12X_ACCURATE(x, offset, dest, width) \
-    asm volatile(\
+    __asm__ volatile(\
     "lea                     " offset "(%0), %%"REG_d"  \n\t"\
     "xor                          %%"REG_a", %%"REG_a"  \n\t"\
     "pxor                             %%mm4, %%mm4      \n\t"\
        "m" (lumSrc+lumFilterSize), "m" (chrSrc+chrFilterSize)
     : "%eax", "%ebx", "%ecx", "%edx", "%esi"
 */
-#define YSCALEYUV2PACKEDX \
-    asm volatile(\
+#define YSCALEYUV2PACKEDX_UV \
+    __asm__ volatile(\
     "xor                   %%"REG_a", %%"REG_a"     \n\t"\
     ASMALIGN(4)\
     "nop                                            \n\t"\
     "paddw                     %%mm5, %%mm4         \n\t"\
     "test                  %%"REG_S", %%"REG_S"     \n\t"\
     " jnz                         2b                \n\t"\
-\
-    "lea "LUM_MMX_FILTER_OFFSET"(%0), %%"REG_d"     \n\t"\
+
+#define YSCALEYUV2PACKEDX_YA(offset,coeff,src1,src2,dst1,dst2) \
+    "lea                "offset"(%0), %%"REG_d"     \n\t"\
     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
-    "movq      "VROUNDER_OFFSET"(%0), %%mm1         \n\t"\
-    "movq                      %%mm1, %%mm7         \n\t"\
+    "movq      "VROUNDER_OFFSET"(%0), "#dst1"       \n\t"\
+    "movq                    "#dst1", "#dst2"       \n\t"\
     ASMALIGN(4)\
     "2:                                             \n\t"\
-    "movq               8(%%"REG_d"), %%mm0         \n\t" /* filterCoeff */\
-    "movq  (%%"REG_S", %%"REG_a", 2), %%mm2         \n\t" /* Y1srcData */\
-    "movq 8(%%"REG_S", %%"REG_a", 2), %%mm5         \n\t" /* Y2srcData */\
+    "movq               8(%%"REG_d"), "#coeff"      \n\t" /* filterCoeff */\
+    "movq  (%%"REG_S", %%"REG_a", 2), "#src1"       \n\t" /* Y1srcData */\
+    "movq 8(%%"REG_S", %%"REG_a", 2), "#src2"       \n\t" /* Y2srcData */\
     "add                         $16, %%"REG_d"            \n\t"\
     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
-    "pmulhw                    %%mm0, %%mm2         \n\t"\
-    "pmulhw                    %%mm0, %%mm5         \n\t"\
-    "paddw                     %%mm2, %%mm1         \n\t"\
-    "paddw                     %%mm5, %%mm7         \n\t"\
+    "pmulhw                 "#coeff", "#src1"       \n\t"\
+    "pmulhw                 "#coeff", "#src2"       \n\t"\
+    "paddw                   "#src1", "#dst1"       \n\t"\
+    "paddw                   "#src2", "#dst2"       \n\t"\
     "test                  %%"REG_S", %%"REG_S"     \n\t"\
     " jnz                         2b                \n\t"\
 
+#define YSCALEYUV2PACKEDX \
+    YSCALEYUV2PACKEDX_UV \
+    YSCALEYUV2PACKEDX_YA(LUM_MMX_FILTER_OFFSET,%%mm0,%%mm2,%%mm5,%%mm1,%%mm7) \
+
 #define YSCALEYUV2PACKEDX_END                 \
     :: "r" (&c->redDither),                   \
         "m" (dummy), "m" (dummy), "m" (dummy),\
     : "%"REG_a, "%"REG_d, "%"REG_S            \
     );
 
-#define YSCALEYUV2PACKEDX_ACCURATE \
-    asm volatile(\
+#define YSCALEYUV2PACKEDX_ACCURATE_UV \
+    __asm__ volatile(\
     "xor %%"REG_a", %%"REG_a"                       \n\t"\
     ASMALIGN(4)\
     "nop                                            \n\t"\
     "paddw                     %%mm0, %%mm6         \n\t"\
     "movq                      %%mm4, "U_TEMP"(%0)  \n\t"\
     "movq                      %%mm6, "V_TEMP"(%0)  \n\t"\
-\
-    "lea "LUM_MMX_FILTER_OFFSET"(%0), %%"REG_d"     \n\t"\
+
+#define YSCALEYUV2PACKEDX_ACCURATE_YA(offset) \
+    "lea                "offset"(%0), %%"REG_d"     \n\t"\
     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
     "pxor                      %%mm1, %%mm1         \n\t"\
     "pxor                      %%mm5, %%mm5         \n\t"\
     "movq               "U_TEMP"(%0), %%mm3         \n\t"\
     "movq               "V_TEMP"(%0), %%mm4         \n\t"\
 
+#define YSCALEYUV2PACKEDX_ACCURATE \
+    YSCALEYUV2PACKEDX_ACCURATE_UV \
+    YSCALEYUV2PACKEDX_ACCURATE_YA(LUM_MMX_FILTER_OFFSET)
+
 #define YSCALEYUV2RGBX \
     "psubw  "U_OFFSET"(%0), %%mm3       \n\t" /* (U-128)8*/\
     "psubw  "V_OFFSET"(%0), %%mm4       \n\t" /* (V-128)8*/\
     "packuswb        %%mm0, %%mm2       \n\t"\
     "packuswb        %%mm6, %%mm5       \n\t"\
     "packuswb        %%mm3, %%mm4       \n\t"\
-    "pxor            %%mm7, %%mm7       \n\t"
-#if 0
-#define FULL_YSCALEYUV2RGB \
-    "pxor                 %%mm7, %%mm7  \n\t"\
-    "movd                    %6, %%mm6  \n\t" /*yalpha1*/\
-    "punpcklwd            %%mm6, %%mm6  \n\t"\
-    "punpcklwd            %%mm6, %%mm6  \n\t"\
-    "movd                    %7, %%mm5  \n\t" /*uvalpha1*/\
-    "punpcklwd            %%mm5, %%mm5  \n\t"\
-    "punpcklwd            %%mm5, %%mm5  \n\t"\
-    "xor              %%"REG_a", %%"REG_a"  \n\t"\
-    ASMALIGN(4)\
-    "1:                                 \n\t"\
-    "movq     (%0, %%"REG_a",2), %%mm0  \n\t" /*buf0[eax]*/\
-    "movq     (%1, %%"REG_a",2), %%mm1  \n\t" /*buf1[eax]*/\
-    "movq     (%2, %%"REG_a",2), %%mm2  \n\t" /* uvbuf0[eax]*/\
-    "movq     (%3, %%"REG_a",2), %%mm3  \n\t" /* uvbuf1[eax]*/\
-    "psubw                %%mm1, %%mm0  \n\t" /* buf0[eax] - buf1[eax]*/\
-    "psubw                %%mm3, %%mm2  \n\t" /* uvbuf0[eax] - uvbuf1[eax]*/\
-    "pmulhw               %%mm6, %%mm0  \n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\
-    "pmulhw               %%mm5, %%mm2  \n\t" /* (uvbuf0[eax] - uvbuf1[eax])uvalpha1>>16*/\
-    "psraw                   $4, %%mm1  \n\t" /* buf0[eax] - buf1[eax] >>4*/\
-    "movq "AV_STRINGIFY(VOF)"(%2, %%"REG_a",2), %%mm4  \n\t" /* uvbuf0[eax+2048]*/\
-    "psraw                   $4, %%mm3  \n\t" /* uvbuf0[eax] - uvbuf1[eax] >>4*/\
-    "paddw                %%mm0, %%mm1  \n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\
-    "movq "AV_STRINGIFY(VOF)"(%3, %%"REG_a",2), %%mm0  \n\t" /* uvbuf1[eax+2048]*/\
-    "paddw                %%mm2, %%mm3  \n\t" /* uvbuf0[eax]uvalpha1 - uvbuf1[eax](1-uvalpha1)*/\
-    "psubw                %%mm0, %%mm4  \n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048]*/\
-    "psubw        "MANGLE(w80)", %%mm1  \n\t" /* 8(Y-16)*/\
-    "psubw       "MANGLE(w400)", %%mm3  \n\t" /* 8(U-128)*/\
-    "pmulhw    "MANGLE(yCoeff)", %%mm1  \n\t"\
-\
-\
-    "pmulhw               %%mm5, %%mm4  \n\t" /* (uvbuf0[eax+2048] - uvbuf1[eax+2048])uvalpha1>>16*/\
-    "movq                 %%mm3, %%mm2  \n\t" /* (U-128)8*/\
-    "pmulhw   "MANGLE(ubCoeff)", %%mm3  \n\t"\
-    "psraw                   $4, %%mm0  \n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048] >>4*/\
-    "pmulhw   "MANGLE(ugCoeff)", %%mm2  \n\t"\
-    "paddw                %%mm4, %%mm0  \n\t" /* uvbuf0[eax+2048]uvalpha1 - uvbuf1[eax+2048](1-uvalpha1)*/\
-    "psubw       "MANGLE(w400)", %%mm0  \n\t" /* (V-128)8*/\
-\
-\
-    "movq                 %%mm0, %%mm4  \n\t" /* (V-128)8*/\
-    "pmulhw   "MANGLE(vrCoeff)", %%mm0  \n\t"\
-    "pmulhw   "MANGLE(vgCoeff)", %%mm4  \n\t"\
-    "paddw                %%mm1, %%mm3  \n\t" /* B*/\
-    "paddw                %%mm1, %%mm0  \n\t" /* R*/\
-    "packuswb             %%mm3, %%mm3  \n\t"\
-\
-    "packuswb             %%mm0, %%mm0  \n\t"\
-    "paddw                %%mm4, %%mm2  \n\t"\
-    "paddw                %%mm2, %%mm1  \n\t" /* G*/\
-\
-    "packuswb             %%mm1, %%mm1  \n\t"
-#endif
 
 #define REAL_YSCALEYUV2PACKED(index, c) \
     "movq "CHR_MMX_FILTER_OFFSET"+8("#c"), %%mm0              \n\t"\
 
 #define YSCALEYUV2PACKED(index, c)  REAL_YSCALEYUV2PACKED(index, c)
 
-#define REAL_YSCALEYUV2RGB(index, c) \
+#define REAL_YSCALEYUV2RGB_UV(index, c) \
     "xor            "#index", "#index"  \n\t"\
     ASMALIGN(4)\
     "1:                                 \n\t"\
     "pmulhw "UG_COEFF"("#c"), %%mm3     \n\t"\
     "pmulhw "VG_COEFF"("#c"), %%mm4     \n\t"\
     /* mm2=(U-128)8, mm3=ug, mm4=vg mm5=(V-128)8 */\
-    "movq  (%0, "#index", 2), %%mm0     \n\t" /*buf0[eax]*/\
-    "movq  (%1, "#index", 2), %%mm1     \n\t" /*buf1[eax]*/\
-    "movq 8(%0, "#index", 2), %%mm6     \n\t" /*buf0[eax]*/\
-    "movq 8(%1, "#index", 2), %%mm7     \n\t" /*buf1[eax]*/\
+
+#define REAL_YSCALEYUV2RGB_YA(index, c, b1, b2) \
+    "movq  ("#b1", "#index", 2), %%mm0     \n\t" /*buf0[eax]*/\
+    "movq  ("#b2", "#index", 2), %%mm1     \n\t" /*buf1[eax]*/\
+    "movq 8("#b1", "#index", 2), %%mm6     \n\t" /*buf0[eax]*/\
+    "movq 8("#b2", "#index", 2), %%mm7     \n\t" /*buf1[eax]*/\
     "psubw             %%mm1, %%mm0     \n\t" /* buf0[eax] - buf1[eax]*/\
     "psubw             %%mm7, %%mm6     \n\t" /* buf0[eax] - buf1[eax]*/\
     "pmulhw "LUM_MMX_FILTER_OFFSET"+8("#c"), %%mm0  \n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\
     "psraw                $4, %%mm7     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
     "paddw             %%mm0, %%mm1     \n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\
     "paddw             %%mm6, %%mm7     \n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\
+
+#define REAL_YSCALEYUV2RGB_COEFF(c) \
     "pmulhw "UB_COEFF"("#c"), %%mm2     \n\t"\
     "pmulhw "VR_COEFF"("#c"), %%mm5     \n\t"\
     "psubw  "Y_OFFSET"("#c"), %%mm1     \n\t" /* 8(Y-16)*/\
     "packuswb          %%mm0, %%mm2     \n\t"\
     "packuswb          %%mm6, %%mm5     \n\t"\
     "packuswb          %%mm3, %%mm4     \n\t"\
-    "pxor              %%mm7, %%mm7     \n\t"
-#define YSCALEYUV2RGB(index, c)  REAL_YSCALEYUV2RGB(index, c)
+
+#define YSCALEYUV2RGB_YA(index, c, b1, b2) REAL_YSCALEYUV2RGB_YA(index, c, b1, b2)
+
+#define YSCALEYUV2RGB(index, c) \
+    REAL_YSCALEYUV2RGB_UV(index, c) \
+    REAL_YSCALEYUV2RGB_YA(index, c, %0, %1) \
+    REAL_YSCALEYUV2RGB_COEFF(c)
 
 #define REAL_YSCALEYUV2PACKED1(index, c) \
     "xor            "#index", "#index"  \n\t"\
     "packuswb          %%mm0, %%mm2     \n\t"\
     "packuswb          %%mm6, %%mm5     \n\t"\
     "packuswb          %%mm3, %%mm4     \n\t"\
-    "pxor              %%mm7, %%mm7     \n\t"
+
 #define YSCALEYUV2RGB1(index, c)  REAL_YSCALEYUV2RGB1(index, c)
 
 #define REAL_YSCALEYUV2PACKED1b(index, c) \
     "packuswb          %%mm0, %%mm2     \n\t"\
     "packuswb          %%mm6, %%mm5     \n\t"\
     "packuswb          %%mm3, %%mm4     \n\t"\
-    "pxor              %%mm7, %%mm7     \n\t"
+
 #define YSCALEYUV2RGB1b(index, c)  REAL_YSCALEYUV2RGB1b(index, c)
 
-#define REAL_WRITEBGR32(dst, dstw, index) \
-    /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */\
-    "movq      %%mm2, %%mm1     \n\t" /* B */\
-    "movq      %%mm5, %%mm6     \n\t" /* R */\
-    "punpcklbw %%mm4, %%mm2     \n\t" /* GBGBGBGB 0 */\
-    "punpcklbw %%mm7, %%mm5     \n\t" /* 0R0R0R0R 0 */\
-    "punpckhbw %%mm4, %%mm1     \n\t" /* GBGBGBGB 2 */\
-    "punpckhbw %%mm7, %%mm6     \n\t" /* 0R0R0R0R 2 */\
-    "movq      %%mm2, %%mm0     \n\t" /* GBGBGBGB 0 */\
-    "movq      %%mm1, %%mm3     \n\t" /* GBGBGBGB 2 */\
-    "punpcklwd %%mm5, %%mm0     \n\t" /* 0RGB0RGB 0 */\
-    "punpckhwd %%mm5, %%mm2     \n\t" /* 0RGB0RGB 1 */\
-    "punpcklwd %%mm6, %%mm1     \n\t" /* 0RGB0RGB 2 */\
-    "punpckhwd %%mm6, %%mm3     \n\t" /* 0RGB0RGB 3 */\
+#define REAL_WRITEBGR32(dst, dstw, index, b, g, r, a, q0, q2, q3, t) \
+    "movq       "#b", "#q2"     \n\t" /* B */\
+    "movq       "#r", "#t"      \n\t" /* R */\
+    "punpcklbw  "#g", "#b"      \n\t" /* GBGBGBGB 0 */\
+    "punpcklbw  "#a", "#r"      \n\t" /* ARARARAR 0 */\
+    "punpckhbw  "#g", "#q2"     \n\t" /* GBGBGBGB 2 */\
+    "punpckhbw  "#a", "#t"      \n\t" /* ARARARAR 2 */\
+    "movq       "#b", "#q0"     \n\t" /* GBGBGBGB 0 */\
+    "movq      "#q2", "#q3"     \n\t" /* GBGBGBGB 2 */\
+    "punpcklwd  "#r", "#q0"     \n\t" /* ARGBARGB 0 */\
+    "punpckhwd  "#r", "#b"      \n\t" /* ARGBARGB 1 */\
+    "punpcklwd  "#t", "#q2"     \n\t" /* ARGBARGB 2 */\
+    "punpckhwd  "#t", "#q3"     \n\t" /* ARGBARGB 3 */\
 \
-    MOVNTQ(%%mm0,   (dst, index, 4))\
-    MOVNTQ(%%mm2,  8(dst, index, 4))\
-    MOVNTQ(%%mm1, 16(dst, index, 4))\
-    MOVNTQ(%%mm3, 24(dst, index, 4))\
+    MOVNTQ(   q0,   (dst, index, 4))\
+    MOVNTQ(    b,  8(dst, index, 4))\
+    MOVNTQ(   q2, 16(dst, index, 4))\
+    MOVNTQ(   q3, 24(dst, index, 4))\
 \
     "add      $8, "#index"      \n\t"\
     "cmp "#dstw", "#index"      \n\t"\
     " jb      1b                \n\t"
-#define WRITEBGR32(dst, dstw, index)  REAL_WRITEBGR32(dst, dstw, index)
+#define WRITEBGR32(dst, dstw, index, b, g, r, a, q0, q2, q3, t)  REAL_WRITEBGR32(dst, dstw, index, b, g, r, a, q0, q2, q3, t)
 
 #define REAL_WRITERGB16(dst, dstw, index) \
     "pand "MANGLE(bF8)", %%mm2  \n\t" /* B */\
     "cmp  "#dstw", "#index"     \n\t"\
     " jb       1b               \n\t"
 
-#ifdef HAVE_MMX2
+#if HAVE_MMX2
 #undef WRITEBGR24
 #define WRITEBGR24(dst, dstw, index)  WRITEBGR24MMX2(dst, dstw, index)
 #else
@@ -949,7 +912,7 @@ static inline void RENAME(yuv2yuvX)(SwsContext *c, int16_t *lumFilter, int16_t *
                                     int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                                     uint8_t *dest, uint8_t *uDest, uint8_t *vDest, long dstW, long chrDstW)
 {
-#ifdef HAVE_MMX
+#if HAVE_MMX
     if(!(c->flags & SWS_BITEXACT)){
         if (c->flags & SWS_ACCURATE_RND){
             if (uDest){
@@ -969,7 +932,7 @@ static inline void RENAME(yuv2yuvX)(SwsContext *c, int16_t *lumFilter, int16_t *
         return;
     }
 #endif
-#ifdef HAVE_ALTIVEC
+#if HAVE_ALTIVEC
 yuv2yuvX_altivec_real(lumFilter, lumSrc, lumFilterSize,
                       chrFilter, chrSrc, chrFilterSize,
                       dest, uDest, vDest, dstW, chrDstW);
@@ -993,16 +956,16 @@ static inline void RENAME(yuv2yuv1)(SwsContext *c, int16_t *lumSrc, int16_t *chr
                                     uint8_t *dest, uint8_t *uDest, uint8_t *vDest, long dstW, long chrDstW)
 {
     int i;
-#ifdef HAVE_MMX
+#if HAVE_MMX
     if(!(c->flags & SWS_BITEXACT)){
         long p= uDest ? 3 : 1;
         uint8_t *src[3]= {lumSrc + dstW, chrSrc + chrDstW, chrSrc + VOFW + chrDstW};
         uint8_t *dst[3]= {dest, uDest, vDest};
-        long counter[3] = {dstW, chrDstW, chrDstW};
+        x86_reg counter[3] = {dstW, chrDstW, chrDstW};
 
         if (c->flags & SWS_ACCURATE_RND){
             while(p--){
-                asm volatile(
+                __asm__ volatile(
                     YSCALEYUV2YV121_ACCURATE
                     :: "r" (src[p]), "r" (dst[p] + counter[p]),
                     "g" (-counter[p])
@@ -1011,7 +974,7 @@ static inline void RENAME(yuv2yuv1)(SwsContext *c, int16_t *lumSrc, int16_t *chr
             }
         }else{
             while(p--){
-                asm volatile(
+                __asm__ volatile(
                     YSCALEYUV2YV121
                     :: "r" (src[p]), "r" (dst[p] + counter[p]),
                     "g" (-counter[p])
@@ -1060,21 +1023,23 @@ static inline void RENAME(yuv2packedX)(SwsContext *c, int16_t *lumFilter, int16_
                                        int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                                        uint8_t *dest, long dstW, long dstY)
 {
-#ifdef HAVE_MMX
-    long dummy=0;
+#if HAVE_MMX
+    x86_reg dummy=0;
     if(!(c->flags & SWS_BITEXACT)){
         if (c->flags & SWS_ACCURATE_RND){
             switch(c->dstFormat){
             case PIX_FMT_RGB32:
                 YSCALEYUV2PACKEDX_ACCURATE
                 YSCALEYUV2RGBX
-                WRITEBGR32(%4, %5, %%REGa)
+                "pcmpeqd %%mm7, %%mm7 \n\t"
+                WRITEBGR32(%4, %5, %%REGa, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
 
                 YSCALEYUV2PACKEDX_END
                 return;
             case PIX_FMT_BGR24:
                 YSCALEYUV2PACKEDX_ACCURATE
                 YSCALEYUV2RGBX
+                "pxor %%mm7, %%mm7 \n\t"
                 "lea (%%"REG_a", %%"REG_a", 2), %%"REG_c"\n\t" //FIXME optimize
                 "add %4, %%"REG_c"                        \n\t"
                 WRITEBGR24(%%REGc, %5, %%REGa)
@@ -1089,11 +1054,12 @@ static inline void RENAME(yuv2packedX)(SwsContext *c, int16_t *lumFilter, int16_
             case PIX_FMT_RGB555:
                 YSCALEYUV2PACKEDX_ACCURATE
                 YSCALEYUV2RGBX
+                "pxor %%mm7, %%mm7 \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2\n\t"
-                "paddusb "MANGLE(g5Dither)", %%mm4\n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5\n\t"
+                "paddusb "BLUE_DITHER"(%0), %%mm2\n\t"
+                "paddusb "GREEN_DITHER"(%0), %%mm4\n\t"
+                "paddusb "RED_DITHER"(%0), %%mm5\n\t"
 #endif
 
                 WRITERGB15(%4, %5, %%REGa)
@@ -1102,11 +1068,12 @@ static inline void RENAME(yuv2packedX)(SwsContext *c, int16_t *lumFilter, int16_
             case PIX_FMT_RGB565:
                 YSCALEYUV2PACKEDX_ACCURATE
                 YSCALEYUV2RGBX
+                "pxor %%mm7, %%mm7 \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2\n\t"
-                "paddusb "MANGLE(g6Dither)", %%mm4\n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5\n\t"
+                "paddusb "BLUE_DITHER"(%0), %%mm2\n\t"
+                "paddusb "GREEN_DITHER"(%0), %%mm4\n\t"
+                "paddusb "RED_DITHER"(%0), %%mm5\n\t"
 #endif
 
                 WRITERGB16(%4, %5, %%REGa)
@@ -1130,12 +1097,14 @@ static inline void RENAME(yuv2packedX)(SwsContext *c, int16_t *lumFilter, int16_
             case PIX_FMT_RGB32:
                 YSCALEYUV2PACKEDX
                 YSCALEYUV2RGBX
-                WRITEBGR32(%4, %5, %%REGa)
+                "pcmpeqd %%mm7, %%mm7 \n\t"
+                WRITEBGR32(%4, %5, %%REGa, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
                 YSCALEYUV2PACKEDX_END
                 return;
             case PIX_FMT_BGR24:
                 YSCALEYUV2PACKEDX
                 YSCALEYUV2RGBX
+                "pxor                    %%mm7, %%mm7       \n\t"
                 "lea (%%"REG_a", %%"REG_a", 2), %%"REG_c"   \n\t" //FIXME optimize
                 "add                        %4, %%"REG_c"   \n\t"
                 WRITEBGR24(%%REGc, %5, %%REGa)
@@ -1149,11 +1118,12 @@ static inline void RENAME(yuv2packedX)(SwsContext *c, int16_t *lumFilter, int16_
             case PIX_FMT_RGB555:
                 YSCALEYUV2PACKEDX
                 YSCALEYUV2RGBX
+                "pxor %%mm7, %%mm7 \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2  \n\t"
-                "paddusb "MANGLE(g5Dither)", %%mm4  \n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5  \n\t"
+                "paddusb "BLUE_DITHER"(%0), %%mm2  \n\t"
+                "paddusb "GREEN_DITHER"(%0), %%mm4  \n\t"
+                "paddusb "RED_DITHER"(%0), %%mm5  \n\t"
 #endif
 
                 WRITERGB15(%4, %5, %%REGa)
@@ -1162,11 +1132,12 @@ static inline void RENAME(yuv2packedX)(SwsContext *c, int16_t *lumFilter, int16_
             case PIX_FMT_RGB565:
                 YSCALEYUV2PACKEDX
                 YSCALEYUV2RGBX
+                "pxor %%mm7, %%mm7 \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2  \n\t"
-                "paddusb "MANGLE(g6Dither)", %%mm4  \n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5  \n\t"
+                "paddusb "BLUE_DITHER"(%0), %%mm2  \n\t"
+                "paddusb "GREEN_DITHER"(%0), %%mm4  \n\t"
+                "paddusb "RED_DITHER"(%0), %%mm5  \n\t"
 #endif
 
                 WRITERGB16(%4, %5, %%REGa)
@@ -1187,15 +1158,16 @@ static inline void RENAME(yuv2packedX)(SwsContext *c, int16_t *lumFilter, int16_
         }
     }
 #endif /* HAVE_MMX */
-#ifdef HAVE_ALTIVEC
+#if HAVE_ALTIVEC
     /* The following list of supported dstFormat values should
-       match what's found in the body of altivec_yuv2packedX() */
-    if (c->dstFormat==PIX_FMT_ABGR  || c->dstFormat==PIX_FMT_BGRA  ||
+       match what's found in the body of ff_yuv2packedX_altivec() */
+    if (!(c->flags & SWS_BITEXACT) &&
+       (c->dstFormat==PIX_FMT_ABGR  || c->dstFormat==PIX_FMT_BGRA  ||
         c->dstFormat==PIX_FMT_BGR24 || c->dstFormat==PIX_FMT_RGB24 ||
-        c->dstFormat==PIX_FMT_RGBA  || c->dstFormat==PIX_FMT_ARGB)
-            altivec_yuv2packedX (c, lumFilter, lumSrc, lumFilterSize,
-                                 chrFilter, chrSrc, chrFilterSize,
-                                 dest, dstW, dstY);
+        c->dstFormat==PIX_FMT_RGBA  || c->dstFormat==PIX_FMT_ARGB))
+            ff_yuv2packedX_altivec(c, lumFilter, lumSrc, lumFilterSize,
+                                   chrFilter, chrSrc, chrFilterSize,
+                                   dest, dstW, dstY);
     else
 #endif
         yuv2packedXinC(c, lumFilter, lumSrc, lumFilterSize,
@@ -1213,233 +1185,19 @@ static inline void RENAME(yuv2packed2)(SwsContext *c, uint16_t *buf0, uint16_t *
     int uvalpha1=4095-uvalpha;
     int i;
 
-#if 0 //isn't used
-    if (flags&SWS_FULL_CHR_H_INT)
-    {
-        switch(dstFormat)
-        {
-#ifdef HAVE_MMX
-        case PIX_FMT_RGB32:
-            asm volatile(
-
-
-FULL_YSCALEYUV2RGB
-            "punpcklbw %%mm1, %%mm3    \n\t" // BGBGBGBG
-            "punpcklbw %%mm7, %%mm0    \n\t" // R0R0R0R0
-
-            "movq      %%mm3, %%mm1    \n\t"
-            "punpcklwd %%mm0, %%mm3    \n\t" // BGR0BGR0
-            "punpckhwd %%mm0, %%mm1    \n\t" // BGR0BGR0
-
-            MOVNTQ(%%mm3,  (%4, %%REGa, 4))
-            MOVNTQ(%%mm1, 8(%4, %%REGa, 4))
-
-            "add $4, %%"REG_a"  \n\t"
-            "cmp %5, %%"REG_a"  \n\t"
-            " jb 1b             \n\t"
-
-            :: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" ((long)dstW),
-            "m" (yalpha1), "m" (uvalpha1)
-            : "%"REG_a
-            );
-            break;
-        case PIX_FMT_BGR24:
-            asm volatile(
-
-FULL_YSCALEYUV2RGB
-
-                                              // lsb ... msb
-            "punpcklbw %%mm1, %%mm3     \n\t" // BGBGBGBG
-            "punpcklbw %%mm7, %%mm0     \n\t" // R0R0R0R0
-
-            "movq      %%mm3, %%mm1     \n\t"
-            "punpcklwd %%mm0, %%mm3     \n\t" // BGR0BGR0
-            "punpckhwd %%mm0, %%mm1     \n\t" // BGR0BGR0
-
-            "movq      %%mm3, %%mm2     \n\t" // BGR0BGR0
-            "psrlq        $8, %%mm3     \n\t" // GR0BGR00
-            "pand "MANGLE(bm00000111)", %%mm2   \n\t" // BGR00000
-            "pand "MANGLE(bm11111000)", %%mm3   \n\t" // 000BGR00
-            "por       %%mm2, %%mm3     \n\t" // BGRBGR00
-            "movq      %%mm1, %%mm2     \n\t"
-            "psllq       $48, %%mm1     \n\t" // 000000BG
-            "por       %%mm1, %%mm3     \n\t" // BGRBGRBG
-
-            "movq      %%mm2, %%mm1     \n\t" // BGR0BGR0
-            "psrld       $16, %%mm2     \n\t" // R000R000
-            "psrlq       $24, %%mm1     \n\t" // 0BGR0000
-            "por       %%mm2, %%mm1     \n\t" // RBGRR000
-
-            "mov          %4, %%"REG_b" \n\t"
-            "add   %%"REG_a", %%"REG_b" \n\t"
-
-#ifdef HAVE_MMX2
-            //FIXME Alignment
-            "movntq %%mm3,  (%%"REG_b", %%"REG_a", 2)   \n\t"
-            "movntq %%mm1, 8(%%"REG_b", %%"REG_a", 2)   \n\t"
-#else
-            "movd %%mm3,  (%%"REG_b", %%"REG_a", 2)     \n\t"
-            "psrlq  $32, %%mm3                          \n\t"
-            "movd %%mm3, 4(%%"REG_b", %%"REG_a", 2)     \n\t"
-            "movd %%mm1, 8(%%"REG_b", %%"REG_a", 2)     \n\t"
-#endif
-            "add     $4, %%"REG_a"                      \n\t"
-            "cmp     %5, %%"REG_a"                      \n\t"
-            " jb     1b                                 \n\t"
-
-            :: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "m" (dest), "m" (dstW),
-            "m" (yalpha1), "m" (uvalpha1)
-            : "%"REG_a, "%"REG_b
-            );
-            break;
-        case PIX_FMT_BGR555:
-            asm volatile(
-
-FULL_YSCALEYUV2RGB
-#ifdef DITHER1XBPP
-            "paddusb "MANGLE(g5Dither)", %%mm1  \n\t"
-            "paddusb "MANGLE(r5Dither)", %%mm0  \n\t"
-            "paddusb "MANGLE(b5Dither)", %%mm3  \n\t"
-#endif
-            "punpcklbw            %%mm7, %%mm1  \n\t" // 0G0G0G0G
-            "punpcklbw            %%mm7, %%mm3  \n\t" // 0B0B0B0B
-            "punpcklbw            %%mm7, %%mm0  \n\t" // 0R0R0R0R
-
-            "psrlw                   $3, %%mm3  \n\t"
-            "psllw                   $2, %%mm1  \n\t"
-            "psllw                   $7, %%mm0  \n\t"
-            "pand     "MANGLE(g15Mask)", %%mm1  \n\t"
-            "pand     "MANGLE(r15Mask)", %%mm0  \n\t"
-
-            "por                  %%mm3, %%mm1  \n\t"
-            "por                  %%mm1, %%mm0  \n\t"
-
-            MOVNTQ(%%mm0, (%4, %%REGa, 2))
-
-            "add $4, %%"REG_a"  \n\t"
-            "cmp %5, %%"REG_a"  \n\t"
-            " jb 1b             \n\t"
-
-            :: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstW),
-            "m" (yalpha1), "m" (uvalpha1)
-            : "%"REG_a
-            );
-            break;
-        case PIX_FMT_BGR565:
-            asm volatile(
-
-FULL_YSCALEYUV2RGB
-#ifdef DITHER1XBPP
-            "paddusb "MANGLE(g6Dither)", %%mm1  \n\t"
-            "paddusb "MANGLE(r5Dither)", %%mm0  \n\t"
-            "paddusb "MANGLE(b5Dither)", %%mm3  \n\t"
-#endif
-            "punpcklbw            %%mm7, %%mm1  \n\t" // 0G0G0G0G
-            "punpcklbw            %%mm7, %%mm3  \n\t" // 0B0B0B0B
-            "punpcklbw            %%mm7, %%mm0  \n\t" // 0R0R0R0R
-
-            "psrlw                   $3, %%mm3  \n\t"
-            "psllw                   $3, %%mm1  \n\t"
-            "psllw                   $8, %%mm0  \n\t"
-            "pand     "MANGLE(g16Mask)", %%mm1  \n\t"
-            "pand     "MANGLE(r16Mask)", %%mm0  \n\t"
-
-            "por                  %%mm3, %%mm1  \n\t"
-            "por                  %%mm1, %%mm0  \n\t"
-
-            MOVNTQ(%%mm0, (%4, %%REGa, 2))
-
-            "add $4, %%"REG_a"  \n\t"
-            "cmp %5, %%"REG_a"  \n\t"
-            " jb 1b             \n\t"
-
-            :: "r" (buf0), "r" (buf1), "r" (uvbuf0), "r" (uvbuf1), "r" (dest), "m" (dstW),
-            "m" (yalpha1), "m" (uvalpha1)
-            : "%"REG_a
-            );
-            break;
-#endif /* HAVE_MMX */
-        case PIX_FMT_BGR32:
-#ifndef HAVE_MMX
-        case PIX_FMT_RGB32:
-#endif
-            if (dstFormat==PIX_FMT_RGB32)
-            {
-                int i;
-#ifdef WORDS_BIGENDIAN
-                dest++;
-#endif
-                for (i=0;i<dstW;i++){
-                    // vertical linear interpolation && yuv2rgb in a single step:
-                    int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];
-                    int U=((uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19);
-                    int V=((uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19);
-                    dest[0]=clip_table[((Y + yuvtab_40cf[U]) >>13)];
-                    dest[1]=clip_table[((Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13)];
-                    dest[2]=clip_table[((Y + yuvtab_3343[V]) >>13)];
-                    dest+= 4;
-                }
-            }
-            else if (dstFormat==PIX_FMT_BGR24)
-            {
-                int i;
-                for (i=0;i<dstW;i++){
-                    // vertical linear interpolation && yuv2rgb in a single step:
-                    int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];
-                    int U=((uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19);
-                    int V=((uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19);
-                    dest[0]=clip_table[((Y + yuvtab_40cf[U]) >>13)];
-                    dest[1]=clip_table[((Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13)];
-                    dest[2]=clip_table[((Y + yuvtab_3343[V]) >>13)];
-                    dest+= 3;
-                }
-            }
-            else if (dstFormat==PIX_FMT_BGR565)
-            {
-                int i;
-                for (i=0;i<dstW;i++){
-                    // vertical linear interpolation && yuv2rgb in a single step:
-                    int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];
-                    int U=((uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19);
-                    int V=((uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19);
-
-                    ((uint16_t*)dest)[i] =
-                        clip_table16b[(Y + yuvtab_40cf[U]) >>13] |
-                        clip_table16g[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13] |
-                        clip_table16r[(Y + yuvtab_3343[V]) >>13];
-                }
-            }
-            else if (dstFormat==PIX_FMT_BGR555)
-            {
-                int i;
-                for (i=0;i<dstW;i++){
-                    // vertical linear interpolation && yuv2rgb in a single step:
-                    int Y=yuvtab_2568[((buf0[i]*yalpha1+buf1[i]*yalpha)>>19)];
-                    int U=((uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19);
-                    int V=((uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19);
-
-                    ((uint16_t*)dest)[i] =
-                        clip_table15b[(Y + yuvtab_40cf[U]) >>13] |
-                        clip_table15g[(Y + yuvtab_1a1e[V] + yuvtab_0c92[U]) >>13] |
-                        clip_table15r[(Y + yuvtab_3343[V]) >>13];
-                }
-            }
-        }//FULL_UV_IPOL
-    else
-    {
-#endif // if 0
-#ifdef HAVE_MMX
+#if HAVE_MMX
     if(!(c->flags & SWS_BITEXACT)){
         switch(c->dstFormat)
         {
             //Note 8280 == DSTW_OFFSET but the preprocessor can't handle that there :(
             case PIX_FMT_RGB32:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB(%%REGBP, %5)
-                WRITEBGR32(%%REGb, 8280(%5), %%REGBP)
+                "pcmpeqd %%mm7, %%mm7                   \n\t"
+                WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
                 "pop %%"REG_BP"                         \n\t"
                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
 
@@ -1448,11 +1206,12 @@ FULL_YSCALEYUV2RGB
                 );
                 return;
             case PIX_FMT_BGR24:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 WRITEBGR24(%%REGb, 8280(%5), %%REGBP)
                 "pop %%"REG_BP"                         \n\t"
                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
@@ -1461,16 +1220,17 @@ FULL_YSCALEYUV2RGB
                 );
                 return;
             case PIX_FMT_RGB555:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2      \n\t"
-                "paddusb "MANGLE(g5Dither)", %%mm4      \n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5      \n\t"
+                "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
+                "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
+                "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
 #endif
 
                 WRITERGB15(%%REGb, 8280(%5), %%REGBP)
@@ -1482,16 +1242,17 @@ FULL_YSCALEYUV2RGB
                 );
                 return;
             case PIX_FMT_RGB565:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2      \n\t"
-                "paddusb "MANGLE(g6Dither)", %%mm4      \n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5      \n\t"
+                "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
+                "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
+                "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
 #endif
 
                 WRITERGB16(%%REGb, 8280(%5), %%REGBP)
@@ -1502,7 +1263,7 @@ FULL_YSCALEYUV2RGB
                 );
                 return;
             case PIX_FMT_YUYV422:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov %4, %%"REG_b"                        \n\t"
                 "push %%"REG_BP"                        \n\t"
@@ -1539,19 +1300,20 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
         return;
     }
 
-#ifdef HAVE_MMX
+#if HAVE_MMX
     if(!(flags & SWS_BITEXACT)){
         if (uvalpha < 2048) // note this is not correct (shifts chrominance by 0.5 pixels) but it is a bit faster
         {
             switch(dstFormat)
             {
             case PIX_FMT_RGB32:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB1(%%REGBP, %5)
-                WRITEBGR32(%%REGb, 8280(%5), %%REGBP)
+                "pcmpeqd %%mm7, %%mm7                   \n\t"
+                WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
                 "pop %%"REG_BP"                         \n\t"
                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
 
@@ -1560,11 +1322,12 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
                 );
                 return;
             case PIX_FMT_BGR24:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB1(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 WRITEBGR24(%%REGb, 8280(%5), %%REGBP)
                 "pop %%"REG_BP"                         \n\t"
                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
@@ -1574,16 +1337,17 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
                 );
                 return;
             case PIX_FMT_RGB555:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB1(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2      \n\t"
-                "paddusb "MANGLE(g5Dither)", %%mm4      \n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5      \n\t"
+                "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
+                "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
+                "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
 #endif
                 WRITERGB15(%%REGb, 8280(%5), %%REGBP)
                 "pop %%"REG_BP"                         \n\t"
@@ -1594,16 +1358,17 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
                 );
                 return;
             case PIX_FMT_RGB565:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB1(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2      \n\t"
-                "paddusb "MANGLE(g6Dither)", %%mm4      \n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5      \n\t"
+                "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
+                "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
+                "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
 #endif
 
                 WRITERGB16(%%REGb, 8280(%5), %%REGBP)
@@ -1615,7 +1380,7 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
                 );
                 return;
             case PIX_FMT_YUYV422:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
@@ -1635,12 +1400,13 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
             switch(dstFormat)
             {
             case PIX_FMT_RGB32:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB1b(%%REGBP, %5)
-                WRITEBGR32(%%REGb, 8280(%5), %%REGBP)
+                "pcmpeqd %%mm7, %%mm7                   \n\t"
+                WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
                 "pop %%"REG_BP"                         \n\t"
                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
 
@@ -1649,11 +1415,12 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
                 );
                 return;
             case PIX_FMT_BGR24:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB1b(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 WRITEBGR24(%%REGb, 8280(%5), %%REGBP)
                 "pop %%"REG_BP"                         \n\t"
                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
@@ -1663,16 +1430,17 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
                 );
                 return;
             case PIX_FMT_RGB555:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB1b(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2      \n\t"
-                "paddusb "MANGLE(g5Dither)", %%mm4      \n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5      \n\t"
+                "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
+                "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
+                "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
 #endif
                 WRITERGB15(%%REGb, 8280(%5), %%REGBP)
                 "pop %%"REG_BP"                         \n\t"
@@ -1683,16 +1451,17 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
                 );
                 return;
             case PIX_FMT_RGB565:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
                 YSCALEYUV2RGB1b(%%REGBP, %5)
+                "pxor    %%mm7, %%mm7                   \n\t"
                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
 #ifdef DITHER1XBPP
-                "paddusb "MANGLE(b5Dither)", %%mm2      \n\t"
-                "paddusb "MANGLE(g6Dither)", %%mm4      \n\t"
-                "paddusb "MANGLE(r5Dither)", %%mm5      \n\t"
+                "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
+                "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
+                "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
 #endif
 
                 WRITERGB16(%%REGb, 8280(%5), %%REGBP)
@@ -1704,7 +1473,7 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
                 );
                 return;
             case PIX_FMT_YUYV422:
-                asm volatile(
+                __asm__ volatile(
                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
                 "mov        %4, %%"REG_b"               \n\t"
                 "push %%"REG_BP"                        \n\t"
@@ -1731,10 +1500,10 @@ static inline void RENAME(yuv2packed1)(SwsContext *c, uint16_t *buf0, uint16_t *
 
 //FIXME yuy2* can read up to 7 samples too much
 
-static inline void RENAME(yuy2ToY)(uint8_t *dst, uint8_t *src, long width)
+static inline void RENAME(yuy2ToY)(uint8_t *dst, uint8_t *src, long width, uint32_t *unused)
 {
-#ifdef HAVE_MMX
-    asm volatile(
+#if HAVE_MMX
+    __asm__ volatile(
     "movq "MANGLE(bm01010101)", %%mm2           \n\t"
     "mov                    %0, %%"REG_a"       \n\t"
     "1:                                         \n\t"
@@ -1746,7 +1515,7 @@ static inline void RENAME(yuy2ToY)(uint8_t *dst, uint8_t *src, long width)
     "movq                %%mm0, (%2, %%"REG_a") \n\t"
     "add                    $8, %%"REG_a"       \n\t"
     " js                    1b                  \n\t"
-    : : "g" (-width), "r" (src+width*2), "r" (dst+width)
+    : : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst+width)
     : "%"REG_a
     );
 #else
@@ -1756,10 +1525,10 @@ static inline void RENAME(yuy2ToY)(uint8_t *dst, uint8_t *src, long width)
 #endif
 }
 
-static inline void RENAME(yuy2ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width)
+static inline void RENAME(yuy2ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width, uint32_t *unused)
 {
-#ifdef HAVE_MMX
-    asm volatile(
+#if HAVE_MMX
+    __asm__ volatile(
     "movq "MANGLE(bm01010101)", %%mm4           \n\t"
     "mov                    %0, %%"REG_a"       \n\t"
     "1:                                         \n\t"
@@ -1777,7 +1546,7 @@ static inline void RENAME(yuy2ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1,
     "movd                %%mm1, (%2, %%"REG_a") \n\t"
     "add                    $4, %%"REG_a"       \n\t"
     " js                    1b                  \n\t"
-    : : "g" (-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
+    : : "g" ((x86_reg)-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
     : "%"REG_a
     );
 #else
@@ -1793,10 +1562,10 @@ static inline void RENAME(yuy2ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1,
 
 /* This is almost identical to the previous, end exists only because
  * yuy2ToY/UV)(dst, src+1, ...) would have 100% unaligned accesses. */
-static inline void RENAME(uyvyToY)(uint8_t *dst, uint8_t *src, long width)
+static inline void RENAME(uyvyToY)(uint8_t *dst, uint8_t *src, long width, uint32_t *unused)
 {
-#ifdef HAVE_MMX
-    asm volatile(
+#if HAVE_MMX
+    __asm__ volatile(
     "mov                  %0, %%"REG_a"         \n\t"
     "1:                                         \n\t"
     "movq  (%1, %%"REG_a",2), %%mm0             \n\t"
@@ -1807,7 +1576,7 @@ static inline void RENAME(uyvyToY)(uint8_t *dst, uint8_t *src, long width)
     "movq              %%mm0, (%2, %%"REG_a")   \n\t"
     "add                  $8, %%"REG_a"         \n\t"
     " js                  1b                    \n\t"
-    : : "g" (-width), "r" (src+width*2), "r" (dst+width)
+    : : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst+width)
     : "%"REG_a
     );
 #else
@@ -1817,10 +1586,10 @@ static inline void RENAME(uyvyToY)(uint8_t *dst, uint8_t *src, long width)
 #endif
 }
 
-static inline void RENAME(uyvyToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width)
+static inline void RENAME(uyvyToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width, uint32_t *unused)
 {
-#ifdef HAVE_MMX
-    asm volatile(
+#if HAVE_MMX
+    __asm__ volatile(
     "movq "MANGLE(bm01010101)", %%mm4           \n\t"
     "mov                    %0, %%"REG_a"       \n\t"
     "1:                                         \n\t"
@@ -1838,7 +1607,7 @@ static inline void RENAME(uyvyToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1,
     "movd                %%mm1, (%2, %%"REG_a") \n\t"
     "add                    $4, %%"REG_a"       \n\t"
     " js                    1b                  \n\t"
-    : : "g" (-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
+    : : "g" ((x86_reg)-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
     : "%"REG_a
     );
 #else
@@ -1853,7 +1622,7 @@ static inline void RENAME(uyvyToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1,
 }
 
 #define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\
-static inline void RENAME(name)(uint8_t *dst, uint8_t *src, long width)\
+static inline void RENAME(name)(uint8_t *dst, uint8_t *src, long width, uint32_t *unused)\
 {\
     int i;\
     for (i=0; i<width; i++)\
@@ -1873,8 +1642,8 @@ BGR2Y(uint16_t, bgr15ToY, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY<<10, GY<<5, BY
 BGR2Y(uint16_t, rgb16ToY, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY    , GY<<5, BY<<11, RGB2YUV_SHIFT+8)
 BGR2Y(uint16_t, rgb15ToY, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY    , GY<<5, BY<<10, RGB2YUV_SHIFT+7)
 
-#define BGR2UV(type, name, shr, shg, shb, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S)\
-static inline void RENAME(name)(uint8_t *dstU, uint8_t *dstV, uint8_t *src, uint8_t *dummy, long width)\
+#define BGR2UV(type, name, shr, shg, shb, maska, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S)\
+static inline void RENAME(name)(uint8_t *dstU, uint8_t *dstV, uint8_t *src, uint8_t *dummy, long width, uint32_t *unused)\
 {\
     int i;\
     for (i=0; i<width; i++)\
@@ -1887,16 +1656,17 @@ static inline void RENAME(name)(uint8_t *dstU, uint8_t *dstV, uint8_t *src, uint
         dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\
     }\
 }\
-static inline void RENAME(name ## _half)(uint8_t *dstU, uint8_t *dstV, uint8_t *src, uint8_t *dummy, long width)\
+static inline void RENAME(name ## _half)(uint8_t *dstU, uint8_t *dstV, uint8_t *src, uint8_t *dummy, long width, uint32_t *unused)\
 {\
     int i;\
     for (i=0; i<width; i++)\
     {\
         int pix0= ((type*)src)[2*i+0];\
         int pix1= ((type*)src)[2*i+1];\
-        int g= (pix0&maskg)+(pix1&maskg);\
+        int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\
         int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\
         int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\
+        g&= maskg|(2*maskg);\
 \
         g>>=shg;\
 \
@@ -1905,32 +1675,32 @@ static inline void RENAME(name ## _half)(uint8_t *dstU, uint8_t *dstV, uint8_t *
     }\
 }
 
-BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0xFF0000, 0xFF00, 0x00FF, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)
-BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)
-BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RU<<11, GU<<5, BU    , RV<<11, GV<<5, BV    , RGB2YUV_SHIFT+8)
-BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RU<<10, GU<<5, BU    , RV<<10, GV<<5, BV    , RGB2YUV_SHIFT+7)
-BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RU    , GU<<5, BU<<11, RV    , GV<<5, BV<<11, RGB2YUV_SHIFT+8)
-BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RU    , GU<<5, BU<<10, RV    , GV<<5, BV<<10, RGB2YUV_SHIFT+7)
+BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0xFF000000, 0xFF0000, 0xFF00,   0x00FF, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)
+BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0xFF000000,   0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)
+BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0,          0,   0x001F, 0x07E0,   0xF800, RU<<11, GU<<5, BU    , RV<<11, GV<<5, BV    , RGB2YUV_SHIFT+8)
+BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0,          0,   0x001F, 0x03E0,   0x7C00, RU<<10, GU<<5, BU    , RV<<10, GV<<5, BV    , RGB2YUV_SHIFT+7)
+BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0,          0,   0xF800, 0x07E0,   0x001F, RU    , GU<<5, BU<<11, RV    , GV<<5, BV<<11, RGB2YUV_SHIFT+8)
+BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0,          0,   0x7C00, 0x03E0,   0x001F, RU    , GU<<5, BU<<10, RV    , GV<<5, BV<<10, RGB2YUV_SHIFT+7)
 
-#ifdef HAVE_MMX
+#if HAVE_MMX
 static inline void RENAME(bgr24ToY_mmx)(uint8_t *dst, uint8_t *src, long width, int srcFormat)
 {
 
     if(srcFormat == PIX_FMT_BGR24){
-        asm volatile(
+        __asm__ volatile(
             "movq  "MANGLE(ff_bgr24toY1Coeff)", %%mm5       \n\t"
             "movq  "MANGLE(ff_bgr24toY2Coeff)", %%mm6       \n\t"
             :
         );
     }else{
-        asm volatile(
+        __asm__ volatile(
             "movq  "MANGLE(ff_rgb24toY1Coeff)", %%mm5       \n\t"
             "movq  "MANGLE(ff_rgb24toY2Coeff)", %%mm6       \n\t"
             :
         );
     }
 
-    asm volatile(
+    __asm__ volatile(
         "movq  "MANGLE(ff_bgr24toYOffset)", %%mm4   \n\t"
         "mov                        %2, %%"REG_a"   \n\t"
         "pxor                    %%mm7, %%mm7       \n\t"
@@ -1961,14 +1731,14 @@ static inline void RENAME(bgr24ToY_mmx)(uint8_t *dst, uint8_t *src, long width,
         "add                        $4, %%"REG_a"   \n\t"
         " js                        1b              \n\t"
     : "+r" (src)
-    : "r" (dst+width), "g" (-width)
+    : "r" (dst+width), "g" ((x86_reg)-width)
     : "%"REG_a
     );
 }
 
 static inline void RENAME(bgr24ToUV_mmx)(uint8_t *dstU, uint8_t *dstV, uint8_t *src, long width, int srcFormat)
 {
-    asm volatile(
+    __asm__ volatile(
         "movq                    24+%4, %%mm6       \n\t"
         "mov                        %3, %%"REG_a"   \n\t"
         "pxor                    %%mm7, %%mm7       \n\t"
@@ -2019,15 +1789,15 @@ static inline void RENAME(bgr24ToUV_mmx)(uint8_t *dstU, uint8_t *dstV, uint8_t *
         "add                        $4, %%"REG_a"   \n\t"
         " js                        1b              \n\t"
     : "+r" (src)
-    : "r" (dstU+width), "r" (dstV+width), "g" (-width), "m"(ff_bgr24toUV[srcFormat == PIX_FMT_RGB24][0])
+    : "r" (dstU+width), "r" (dstV+width), "g" ((x86_reg)-width), "m"(ff_bgr24toUV[srcFormat == PIX_FMT_RGB24][0])
     : "%"REG_a
     );
 }
 #endif
 
-static inline void RENAME(bgr24ToY)(uint8_t *dst, uint8_t *src, long width)
+static inline void RENAME(bgr24ToY)(uint8_t *dst, uint8_t *src, long width, uint32_t *unused)
 {
-#ifdef HAVE_MMX
+#if HAVE_MMX
     RENAME(bgr24ToY_mmx)(dst, src, width, PIX_FMT_BGR24);
 #else
     int i;
@@ -2042,9 +1812,9 @@ static inline void RENAME(bgr24ToY)(uint8_t *dst, uint8_t *src, long width)
 #endif /* HAVE_MMX */
 }
 
-static inline void RENAME(bgr24ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width)
+static inline void RENAME(bgr24ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width, uint32_t *unused)
 {
-#ifdef HAVE_MMX
+#if HAVE_MMX
     RENAME(bgr24ToUV_mmx)(dstU, dstV, src1, width, PIX_FMT_BGR24);
 #else
     int i;
@@ -2061,7 +1831,7 @@ static inline void RENAME(bgr24ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1
     assert(src1 == src2);
 }
 
-static inline void RENAME(bgr24ToUV_half)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width)
+static inline void RENAME(bgr24ToUV_half)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width, uint32_t *unused)
 {
     int i;
     for (i=0; i<width; i++)
@@ -2076,9 +1846,9 @@ static inline void RENAME(bgr24ToUV_half)(uint8_t *dstU, uint8_t *dstV, uint8_t
     assert(src1 == src2);
 }
 
-static inline void RENAME(rgb24ToY)(uint8_t *dst, uint8_t *src, long width)
+static inline void RENAME(rgb24ToY)(uint8_t *dst, uint8_t *src, long width, uint32_t *unused)
 {
-#ifdef HAVE_MMX
+#if HAVE_MMX
     RENAME(bgr24ToY_mmx)(dst, src, width, PIX_FMT_RGB24);
 #else
     int i;
@@ -2093,13 +1863,14 @@ static inline void RENAME(rgb24ToY)(uint8_t *dst, uint8_t *src, long width)
 #endif
 }
 
-static inline void RENAME(rgb24ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width)
+static inline void RENAME(rgb24ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width, uint32_t *unused)
 {
-    int i;
+#if HAVE_MMX
     assert(src1==src2);
-#ifdef HAVE_MMX
     RENAME(bgr24ToUV_mmx)(dstU, dstV, src1, width, PIX_FMT_RGB24);
 #else
+    int i;
+    assert(src1==src2);
     for (i=0; i<width; i++)
     {
         int r= src1[3*i + 0];
@@ -2112,7 +1883,7 @@ static inline void RENAME(rgb24ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1
 #endif
 }
 
-static inline void RENAME(rgb24ToUV_half)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width)
+static inline void RENAME(rgb24ToUV_half)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1, uint8_t *src2, long width, uint32_t *unused)
 {
     int i;
     assert(src1==src2);
@@ -2152,7 +1923,7 @@ static inline void RENAME(palToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1,
     }
 }
 
-static inline void RENAME(monowhite2Y)(uint8_t *dst, uint8_t *src, long width)
+static inline void RENAME(monowhite2Y)(uint8_t *dst, uint8_t *src, long width, uint32_t *unused)
 {
     int i, j;
     for (i=0; i<width/8; i++){
@@ -2162,7 +1933,7 @@ static inline void RENAME(monowhite2Y)(uint8_t *dst, uint8_t *src, long width)
     }
 }
 
-static inline void RENAME(monoblack2Y)(uint8_t *dst, uint8_t *src, long width)
+static inline void RENAME(monoblack2Y)(uint8_t *dst, uint8_t *src, long width, uint32_t *unused)
 {
     int i, j;
     for (i=0; i<width/8; i++){
@@ -2176,15 +1947,15 @@ static inline void RENAME(monoblack2Y)(uint8_t *dst, uint8_t *src, long width)
 static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW, int xInc,
                                   int16_t *filter, int16_t *filterPos, long filterSize)
 {
-#ifdef HAVE_MMX
+#if HAVE_MMX
     assert(filterSize % 4 == 0 && filterSize>0);
     if (filterSize==4) // Always true for upscaling, sometimes for down, too.
     {
-        long counter= -2*dstW;
+        x86_reg counter= -2*dstW;
         filter-= counter*2;
         filterPos-= counter/2;
         dst-= counter/2;
-        asm volatile(
+        __asm__ volatile(
 #if defined(PIC)
         "push            %%"REG_b"              \n\t"
 #endif
@@ -2226,11 +1997,11 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
     }
     else if (filterSize==8)
     {
-        long counter= -2*dstW;
+        x86_reg counter= -2*dstW;
         filter-= counter*4;
         filterPos-= counter/2;
         dst-= counter/2;
-        asm volatile(
+        __asm__ volatile(
 #if defined(PIC)
         "push             %%"REG_b"             \n\t"
 #endif
@@ -2284,11 +2055,11 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
     else
     {
         uint8_t *offset = src+filterSize;
-        long counter= -2*dstW;
+        x86_reg counter= -2*dstW;
         //filter-= counter*filterSize/2;
         filterPos-= counter/2;
         dst-= counter/2;
-        asm volatile(
+        __asm__ volatile(
         "pxor                  %%mm7, %%mm7     \n\t"
         ASMALIGN(4)
         "1:                                     \n\t"
@@ -2327,12 +2098,12 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
 
         : "+r" (counter), "+r" (filter)
         : "m" (filterPos), "m" (dst), "m"(offset),
-          "m" (src), "r" (filterSize*2)
+          "m" (src), "r" ((x86_reg)filterSize*2)
         : "%"REG_a, "%"REG_c, "%"REG_d
         );
     }
 #else
-#ifdef HAVE_ALTIVEC
+#if HAVE_ALTIVEC
     hScale_altivec_real(dst, dstW, src, srcW, xInc, filter, filterPos, filterSize);
 #else
     int i;
@@ -2363,62 +2134,62 @@ static inline void RENAME(hyscale)(SwsContext *c, uint16_t *dst, long dstWidth,
 {
     if (srcFormat==PIX_FMT_YUYV422 || srcFormat==PIX_FMT_GRAY16BE)
     {
-        RENAME(yuy2ToY)(formatConvBuffer, src, srcW);
+        RENAME(yuy2ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_UYVY422 || srcFormat==PIX_FMT_GRAY16LE)
     {
-        RENAME(uyvyToY)(formatConvBuffer, src, srcW);
+        RENAME(uyvyToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_RGB32)
     {
-        RENAME(bgr32ToY)(formatConvBuffer, src, srcW);
+        RENAME(bgr32ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_RGB32_1)
     {
-        RENAME(bgr32ToY)(formatConvBuffer, src+ALT32_CORR, srcW);
+        RENAME(bgr32ToY)(formatConvBuffer, src+ALT32_CORR, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_BGR24)
     {
-        RENAME(bgr24ToY)(formatConvBuffer, src, srcW);
+        RENAME(bgr24ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_BGR565)
     {
-        RENAME(bgr16ToY)(formatConvBuffer, src, srcW);
+        RENAME(bgr16ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_BGR555)
     {
-        RENAME(bgr15ToY)(formatConvBuffer, src, srcW);
+        RENAME(bgr15ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_BGR32)
     {
-        RENAME(rgb32ToY)(formatConvBuffer, src, srcW);
+        RENAME(rgb32ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_BGR32_1)
     {
-        RENAME(rgb32ToY)(formatConvBuffer, src+ALT32_CORR, srcW);
+        RENAME(rgb32ToY)(formatConvBuffer, src+ALT32_CORR, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_RGB24)
     {
-        RENAME(rgb24ToY)(formatConvBuffer, src, srcW);
+        RENAME(rgb24ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_RGB565)
     {
-        RENAME(rgb16ToY)(formatConvBuffer, src, srcW);
+        RENAME(rgb16ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_RGB555)
     {
-        RENAME(rgb15ToY)(formatConvBuffer, src, srcW);
+        RENAME(rgb15ToY)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_RGB8 || srcFormat==PIX_FMT_BGR8 || srcFormat==PIX_FMT_PAL8 || srcFormat==PIX_FMT_BGR4_BYTE  || srcFormat==PIX_FMT_RGB4_BYTE)
@@ -2428,16 +2199,16 @@ static inline void RENAME(hyscale)(SwsContext *c, uint16_t *dst, long dstWidth,
     }
     else if (srcFormat==PIX_FMT_MONOBLACK)
     {
-        RENAME(monoblack2Y)(formatConvBuffer, src, srcW);
+        RENAME(monoblack2Y)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
     else if (srcFormat==PIX_FMT_MONOWHITE)
     {
-        RENAME(monowhite2Y)(formatConvBuffer, src, srcW);
+        RENAME(monowhite2Y)(formatConvBuffer, src, srcW, pal);
         src= formatConvBuffer;
     }
 
-#ifdef HAVE_MMX
+#if HAVE_MMX
     // Use the new MMX scaler if the MMX2 one can't be used (it is faster than the x86 ASM one).
     if (!(flags&SWS_FAST_BILINEAR) || (!canMMX2BeUsed))
 #else
@@ -2448,15 +2219,15 @@ static inline void RENAME(hyscale)(SwsContext *c, uint16_t *dst, long dstWidth,
     }
     else // fast bilinear upscale / crap downscale
     {
-#if defined(ARCH_X86)
-#ifdef HAVE_MMX2
+#if ARCH_X86 && CONFIG_GPL
+#if HAVE_MMX2
         int i;
 #if defined(PIC)
         uint64_t ebxsave __attribute__((aligned(8)));
 #endif
         if (canMMX2BeUsed)
         {
-            asm volatile(
+            __asm__ volatile(
 #if defined(PIC)
             "mov               %%"REG_b", %5        \n\t"
 #endif
@@ -2470,7 +2241,7 @@ static inline void RENAME(hyscale)(SwsContext *c, uint16_t *dst, long dstWidth,
             PREFETCH"      32(%%"REG_c")            \n\t"
             PREFETCH"      64(%%"REG_c")            \n\t"
 
-#ifdef ARCH_X86_64
+#if ARCH_X86_64
 
 #define FUNNY_Y_CODE \
             "movl            (%%"REG_b"), %%esi     \n\t"\
@@ -2518,10 +2289,10 @@ FUNNY_Y_CODE
         else
         {
 #endif /* HAVE_MMX2 */
-        long xInc_shr16 = xInc >> 16;
+        x86_reg xInc_shr16 = xInc >> 16;
         uint16_t xInc_mask = xInc & 0xffff;
         //NO MMX just normal asm ...
-        asm volatile(
+        __asm__ volatile(
         "xor %%"REG_a", %%"REG_a"            \n\t" // i
         "xor %%"REG_d", %%"REG_d"            \n\t" // xx
         "xorl    %%ecx, %%ecx                \n\t" // 2*xalpha
@@ -2560,7 +2331,7 @@ FUNNY_Y_CODE
         :: "r" (src), "m" (dst), "m" (dstWidth), "m" (xInc_shr16), "m" (xInc_mask)
         : "%"REG_a, "%"REG_d, "%ecx", "%"REG_D, "%esi"
         );
-#ifdef HAVE_MMX2
+#if HAVE_MMX2
         } //if MMX2 can't be used
 #endif
 #else
@@ -2573,7 +2344,7 @@ FUNNY_Y_CODE
             dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
             xpos+=xInc;
         }
-#endif /* defined(ARCH_X86) */
+#endif /* ARCH_X86 */
     }
 
     if(c->srcRange != c->dstRange && !(isRGB(c->dstFormat) || isBGR(c->dstFormat))){
@@ -2598,103 +2369,103 @@ inline static void RENAME(hcscale)(SwsContext *c, uint16_t *dst, long dstWidth,
 {
     if (srcFormat==PIX_FMT_YUYV422)
     {
-        RENAME(yuy2ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+        RENAME(yuy2ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_UYVY422)
     {
-        RENAME(uyvyToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+        RENAME(uyvyToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_RGB32)
     {
         if(c->chrSrcHSubSample)
-            RENAME(bgr32ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(bgr32ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         else
-            RENAME(bgr32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(bgr32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_RGB32_1)
     {
         if(c->chrSrcHSubSample)
-            RENAME(bgr32ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW);
+            RENAME(bgr32ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW, pal);
         else
-            RENAME(bgr32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW);
+            RENAME(bgr32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_BGR24)
     {
         if(c->chrSrcHSubSample)
-            RENAME(bgr24ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(bgr24ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         else
-            RENAME(bgr24ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(bgr24ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_BGR565)
     {
         if(c->chrSrcHSubSample)
-            RENAME(bgr16ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(bgr16ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         else
-            RENAME(bgr16ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(bgr16ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_BGR555)
     {
         if(c->chrSrcHSubSample)
-            RENAME(bgr15ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(bgr15ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         else
-            RENAME(bgr15ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(bgr15ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_BGR32)
     {
         if(c->chrSrcHSubSample)
-            RENAME(rgb32ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(rgb32ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         else
-            RENAME(rgb32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(rgb32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_BGR32_1)
     {
         if(c->chrSrcHSubSample)
-            RENAME(rgb32ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW);
+            RENAME(rgb32ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW, pal);
         else
-            RENAME(rgb32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW);
+            RENAME(rgb32ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1+ALT32_CORR, src2+ALT32_CORR, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_RGB24)
     {
         if(c->chrSrcHSubSample)
-            RENAME(rgb24ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(rgb24ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         else
-            RENAME(rgb24ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(rgb24ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_RGB565)
     {
         if(c->chrSrcHSubSample)
-            RENAME(rgb16ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(rgb16ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         else
-            RENAME(rgb16ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(rgb16ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
     else if (srcFormat==PIX_FMT_RGB555)
     {
         if(c->chrSrcHSubSample)
-            RENAME(rgb15ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(rgb15ToUV_half)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         else
-            RENAME(rgb15ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW);
+            RENAME(rgb15ToUV)(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
         src1= formatConvBuffer;
         src2= formatConvBuffer+VOFW;
     }
@@ -2709,7 +2480,7 @@ inline static void RENAME(hcscale)(SwsContext *c, uint16_t *dst, long dstWidth,
         src2= formatConvBuffer+VOFW;
     }
 
-#ifdef HAVE_MMX
+#if HAVE_MMX
     // Use the new MMX scaler if the MMX2 one can't be used (it is faster than the x86 ASM one).
     if (!(flags&SWS_FAST_BILINEAR) || (!canMMX2BeUsed))
 #else
@@ -2721,15 +2492,15 @@ inline static void RENAME(hcscale)(SwsContext *c, uint16_t *dst, long dstWidth,
     }
     else // fast bilinear upscale / crap downscale
     {
-#if defined(ARCH_X86)
-#ifdef HAVE_MMX2
+#if ARCH_X86 && CONFIG_GPL
+#if HAVE_MMX2
         int i;
 #if defined(PIC)
         uint64_t ebxsave __attribute__((aligned(8)));
 #endif
         if (canMMX2BeUsed)
         {
-            asm volatile(
+            __asm__ volatile(
 #if defined(PIC)
             "mov          %%"REG_b", %6         \n\t"
 #endif
@@ -2743,7 +2514,7 @@ inline static void RENAME(hcscale)(SwsContext *c, uint16_t *dst, long dstWidth,
             PREFETCH" 32(%%"REG_c")             \n\t"
             PREFETCH" 64(%%"REG_c")             \n\t"
 
-#ifdef ARCH_X86_64
+#if ARCH_X86_64
 
 #define FUNNY_UV_CODE \
             "movl       (%%"REG_b"), %%esi      \n\t"\
@@ -2804,9 +2575,9 @@ FUNNY_UV_CODE
         else
         {
 #endif /* HAVE_MMX2 */
-            long xInc_shr16 = (long) (xInc >> 16);
+            x86_reg xInc_shr16 = (x86_reg) (xInc >> 16);
             uint16_t xInc_mask = xInc & 0xffff;
-            asm volatile(
+            __asm__ volatile(
             "xor %%"REG_a", %%"REG_a"               \n\t" // i
             "xor %%"REG_d", %%"REG_d"               \n\t" // xx
             "xorl    %%ecx, %%ecx                   \n\t" // 2*xalpha
@@ -2841,15 +2612,15 @@ FUNNY_UV_CODE
 
 /* GCC 3.3 makes MPlayer crash on IA-32 machines when using "g" operand here,
    which is needed to support GCC 4.0. */
-#if defined(ARCH_X86_64) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
-            :: "m" (src1), "m" (dst), "g" ((long)dstWidth), "m" (xInc_shr16), "m" (xInc_mask),
+#if ARCH_X86_64 && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+            :: "m" (src1), "m" (dst), "g" (dstWidth), "m" (xInc_shr16), "m" (xInc_mask),
 #else
-            :: "m" (src1), "m" (dst), "m" ((long)dstWidth), "m" (xInc_shr16), "m" (xInc_mask),
+            :: "m" (src1), "m" (dst), "m" (dstWidth), "m" (xInc_shr16), "m" (xInc_mask),
 #endif
             "r" (src2)
             : "%"REG_a, "%"REG_d, "%ecx", "%"REG_D, "%esi"
             );
-#ifdef HAVE_MMX2
+#if HAVE_MMX2
         } //if MMX2 can't be used
 #endif
 #else
@@ -2867,7 +2638,7 @@ FUNNY_UV_CODE
             */
             xpos+=xInc;
         }
-#endif /* defined(ARCH_X86) */
+#endif /* ARCH_X86 */
     }
     if(c->srcRange != c->dstRange && !(isRGB(c->dstFormat) || isBGR(c->dstFormat))){
         int i;
@@ -2926,7 +2697,7 @@ static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int s
     const int chrSrcSliceY= srcSliceY >> c->chrSrcVSubSample;
     const int chrSrcSliceH= -((-srcSliceH) >> c->chrSrcVSubSample);
     int lastDstY;
-    uint32_t *pal=NULL;
+    uint32_t *pal=c->pal_yuv;
 
     /* vars which will change and which we need to store back in the context */
     int dstY= c->dstY;
@@ -2936,7 +2707,6 @@ static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int s
     int lastInChrBuf= c->lastInChrBuf;
 
     if (isPacked(c->srcFormat)){
-        pal= (uint32_t *)src[1];
         src[0]=
         src[1]=
         src[2]= src[0];
@@ -2965,12 +2735,12 @@ static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int s
 
     if (dstStride[0]%8 !=0 || dstStride[1]%8 !=0 || dstStride[2]%8 !=0)
     {
-        static int firstTime=1; //FIXME move this into the context perhaps
-        if (flags & SWS_PRINT_INFO && firstTime)
+        static int warnedAlready=0; //FIXME move this into the context perhaps
+        if (flags & SWS_PRINT_INFO && !warnedAlready)
         {
             av_log(c, AV_LOG_WARNING, "Warning: dstStride is not aligned!\n"
                    "         ->cannot do aligned memory accesses anymore\n");
-            firstTime=0;
+            warnedAlready=1;
         }
     }
 
@@ -3090,17 +2860,19 @@ static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int s
             break; //we can't output a dstY line so let's try with the next slice
         }
 
-#ifdef HAVE_MMX
-        b5Dither= ff_dither8[dstY&1];
-        g6Dither= ff_dither4[dstY&1];
-        g5Dither= ff_dither8[dstY&1];
-        r5Dither= ff_dither8[(dstY+1)&1];
+#if HAVE_MMX
+        c->blueDither= ff_dither8[dstY&1];
+        if (c->dstFormat == PIX_FMT_RGB555 || c->dstFormat == PIX_FMT_BGR555)
+            c->greenDither= ff_dither8[dstY&1];
+        else
+            c->greenDither= ff_dither4[dstY&1];
+        c->redDither= ff_dither8[(dstY+1)&1];
 #endif
         if (dstY < dstH-2)
         {
             int16_t **lumSrcPtr= lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
             int16_t **chrSrcPtr= chrPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
-#ifdef HAVE_MMX
+#if HAVE_MMX
             int i;
         if (flags & SWS_ACCURATE_RND){
             int s= APCK_SIZE / 8;
@@ -3254,9 +3026,9 @@ static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int s
         }
     }
 
-#ifdef HAVE_MMX
-    asm volatile(SFENCE:::"memory");
-    asm volatile(EMMS:::"memory");
+#if HAVE_MMX
+    __asm__ volatile(SFENCE:::"memory");
+    __asm__ volatile(EMMS:::"memory");
 #endif
     /* store changed local vars back in the context */
     c->dstY= dstY;