swscale/x86/rgb2rgb: add support for AVX

This does not yet include any actual AVX code
Signed-off-by: Anton Khirnov <anton@khirnov.net>

libswscale/x86/rgb2rgb.c

@@ -89,6 +89,7 @@ DECLARE_ASM_CONST(8, uint64_t, blue_15mask)  = 0x0000001f0000001fULL;
 #define COMPILE_TEMPLATE_MMXEXT 0
 #define COMPILE_TEMPLATE_AMD3DNOW 0
 #define COMPILE_TEMPLATE_SSE2 0
+#define COMPILE_TEMPLATE_AVX 0
 
 //MMX versions
 #undef RENAME
@@ -109,10 +110,18 @@ DECLARE_ASM_CONST(8, uint64_t, blue_15mask)  = 0x0000001f0000001fULL;
 #define RENAME(a) a ## _sse2
 #include "rgb2rgb_template.c"
 
+//AVX versions
+#undef RENAME
+#undef COMPILE_TEMPLATE_AVX
+#define COMPILE_TEMPLATE_AVX 1
+#define RENAME(a) a ## _avx
+#include "rgb2rgb_template.c"
+
 //3DNOW versions
 #undef RENAME
 #undef COMPILE_TEMPLATE_MMXEXT
 #undef COMPILE_TEMPLATE_SSE2
+#undef COMPILE_TEMPLATE_AVX
 #undef COMPILE_TEMPLATE_AMD3DNOW
 #define COMPILE_TEMPLATE_MMXEXT 0
 #define COMPILE_TEMPLATE_SSE2 0
@@ -142,5 +151,7 @@ av_cold void rgb2rgb_init_x86(void)
         rgb2rgb_init_mmxext();
     if (INLINE_SSE2(cpu_flags))
         rgb2rgb_init_sse2();
+    if (INLINE_AVX(cpu_flags))
+        rgb2rgb_init_avx();
 #endif /* HAVE_INLINE_ASM */
 }

libswscale/x86/rgb2rgb_template.c

@@ -1871,7 +1871,7 @@ static inline void RENAME(rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_
 }
 #endif /* !COMPILE_TEMPLATE_SSE2 */
 
-#if !COMPILE_TEMPLATE_AMD3DNOW
+#if !COMPILE_TEMPLATE_AMD3DNOW && !COMPILE_TEMPLATE_AVX
 static void RENAME(interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dest,
                                     int width, int height, int src1Stride,
                                     int src2Stride, int dstStride)
@@ -1941,7 +1941,7 @@ static void RENAME(interleaveBytes)(const uint8_t *src1, const uint8_t *src2, ui
             ::: "memory"
             );
 }
-#endif /* !COMPILE_TEMPLATE_AMD3DNOW */
+#endif /* !COMPILE_TEMPLATE_AMD3DNOW && !COMPILE_TEMPLATE_AVX */
 
 #if !COMPILE_TEMPLATE_SSE2
 #if !COMPILE_TEMPLATE_AMD3DNOW
@@ -2509,7 +2509,7 @@ static av_cold void RENAME(rgb2rgb_init)(void)
     uyvytoyuv420       = RENAME(uyvytoyuv420);
 #endif /* !COMPILE_TEMPLATE_SSE2 */
 
-#if !COMPILE_TEMPLATE_AMD3DNOW
+#if !COMPILE_TEMPLATE_AMD3DNOW && !COMPILE_TEMPLATE_AVX
     interleaveBytes    = RENAME(interleaveBytes);
-#endif /* !COMPILE_TEMPLATE_AMD3DNOW */
+#endif /* !COMPILE_TEMPLATE_AMD3DNOW && !COMPILE_TEMPLATE_AVX */
 }