faster h264_chroma_mc8_mmx, added h264_chroma_mc4_mmx.

2-4% overall speedup.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@4666 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/i386/dsputil_mmx.c

@@ -43,6 +43,7 @@ static const uint64_t ff_pw_20 attribute_used __attribute__ ((aligned(8))) = 0x0
 static const uint64_t ff_pw_3  attribute_used __attribute__ ((aligned(8))) = 0x0003000300030003ULL;
 static const uint64_t ff_pw_4  attribute_used __attribute__ ((aligned(8))) = 0x0004000400040004ULL;
 static const uint64_t ff_pw_5  attribute_used __attribute__ ((aligned(8))) = 0x0005000500050005ULL;
+static const uint64_t ff_pw_8  attribute_used __attribute__ ((aligned(8))) = 0x0008000800080008ULL;
 static const uint64_t ff_pw_16 attribute_used __attribute__ ((aligned(8))) = 0x0010001000100010ULL;
 static const uint64_t ff_pw_32 attribute_used __attribute__ ((aligned(8))) = 0x0020002000200020ULL;
 static const uint64_t ff_pw_64 attribute_used __attribute__ ((aligned(8))) = 0x0040004000400040ULL;
@@ -2726,6 +2727,7 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
         c->h263_v_loop_filter= h263_v_loop_filter_mmx;
         c->h263_h_loop_filter= h263_h_loop_filter_mmx;        
 	c->put_h264_chroma_pixels_tab[0]= put_h264_chroma_mc8_mmx;
+        c->put_h264_chroma_pixels_tab[1]= put_h264_chroma_mc4_mmx;
         
         if (mm_flags & MM_MMXEXT) {
             c->put_pixels_tab[0][1] = put_pixels16_x2_mmx2;
@@ -2825,6 +2827,7 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
 #undef dspfunc
 
 	    c->avg_h264_chroma_pixels_tab[0]= avg_h264_chroma_mc8_mmx2;
+            c->avg_h264_chroma_pixels_tab[1]= avg_h264_chroma_mc4_mmx2;
             c->h264_v_loop_filter_luma= h264_v_loop_filter_luma_mmx2;
             c->h264_h_loop_filter_luma= h264_h_loop_filter_luma_mmx2;
             c->h264_v_loop_filter_chroma= h264_v_loop_filter_chroma_mmx2;
@@ -2936,6 +2939,7 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
             dspfunc(avg_h264_qpel, 2, 4);
 
 	    c->avg_h264_chroma_pixels_tab[0]= avg_h264_chroma_mc8_3dnow;
+            c->avg_h264_chroma_pixels_tab[1]= avg_h264_chroma_mc4_3dnow;
         }
     }
         

libavcodec/i386/h264dsp_mmx.c

@@ -892,22 +892,42 @@ H264_MC(avg_, 16,mmx2)
 
 
 #define H264_CHROMA_OP(S,D)
+#define H264_CHROMA_OP4(S,D,T)
 #define H264_CHROMA_MC8_TMPL put_h264_chroma_mc8_mmx
+#define H264_CHROMA_MC4_TMPL put_h264_chroma_mc4_mmx
+#define H264_CHROMA_MC8_MV0 put_pixels8_mmx
 #include "dsputil_h264_template_mmx.c"
 #undef H264_CHROMA_OP
+#undef H264_CHROMA_OP4
 #undef H264_CHROMA_MC8_TMPL
+#undef H264_CHROMA_MC4_TMPL
+#undef H264_CHROMA_MC8_MV0
 
 #define H264_CHROMA_OP(S,D) "pavgb " #S ", " #D " \n\t"
+#define H264_CHROMA_OP4(S,D,T) "movd  " #S ", " #T " \n\t"\
+                               "pavgb " #T ", " #D " \n\t"
 #define H264_CHROMA_MC8_TMPL avg_h264_chroma_mc8_mmx2
+#define H264_CHROMA_MC4_TMPL avg_h264_chroma_mc4_mmx2
+#define H264_CHROMA_MC8_MV0 avg_pixels8_mmx2
 #include "dsputil_h264_template_mmx.c"
 #undef H264_CHROMA_OP
+#undef H264_CHROMA_OP4
 #undef H264_CHROMA_MC8_TMPL
+#undef H264_CHROMA_MC4_TMPL
+#undef H264_CHROMA_MC8_MV0
 
 #define H264_CHROMA_OP(S,D) "pavgusb " #S ", " #D " \n\t"
+#define H264_CHROMA_OP4(S,D,T) "movd " #S ", " #T " \n\t"\
+                               "pavgusb " #T ", " #D " \n\t"
 #define H264_CHROMA_MC8_TMPL avg_h264_chroma_mc8_3dnow
+#define H264_CHROMA_MC4_TMPL avg_h264_chroma_mc4_3dnow
+#define H264_CHROMA_MC8_MV0 avg_pixels8_3dnow
 #include "dsputil_h264_template_mmx.c"
 #undef H264_CHROMA_OP
+#undef H264_CHROMA_OP4
 #undef H264_CHROMA_MC8_TMPL
+#undef H264_CHROMA_MC4_TMPL
+#undef H264_CHROMA_MC8_MV0
 
 /***********************************/
 /* weighted prediction */