use sse2 instruction for line compositing

[mlt] / src / modules / core / transition_composite.c

diff --git a/src/modules/core/transition_composite.c b/src/modules/core/transition_composite.c
index f7054acb33fce012675525af2445444e64181b95..ca90471869413c270e297222bc82335039da574c 100644 (file)
--- a/src/modules/core/transition_composite.c
+++ b/src/modules/core/transition_composite.c
@@ -365,13 +365,28 @@ static inline uint8_t sample_mix( uint8_t dest, uint8_t src, int mix )
 
 /** Composite a source line over a destination line
 */
+#if defined(USE_SSE) && defined(ARCH_X86_64)
+#include "composite_line_yuv_sse2_simple.c"
+#endif
 
 static void composite_line_yuv( uint8_t *dest, uint8_t *src, int width, uint8_t *alpha_b, uint8_t *alpha_a, int weight, uint16_t *luma, int soft, uint32_t step )
 {
-       register int j;
+       register int j = 0;
        register int mix;
 
-       for ( j = 0; j < width; j ++ )
+#if defined(USE_SSE) && defined(ARCH_X86_64)
+       if ( !luma && width > 7 )
+       {
+               composite_line_yuv_sse2_simple(dest, src, width, alpha_b, alpha_a, weight);
+               j = width - width % 8;
+               dest += j * 2;
+               src += j * 2;
+               alpha_a += j;
+               alpha_b += j;
+       }
+#endif
+
+       for ( ; j < width; j ++ )
        {
                mix = calculate_mix( luma, j, soft, weight, *alpha_b ++, step );
                *dest = sample_mix( *dest, *src++, mix );