Some AltiVec optimizations for VC-1

Originally committed as revision 5899 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/Makefile

@@ -343,7 +343,8 @@ OBJS-$(TARGET_ALTIVEC)                 += ppc/dsputil_altivec.o      \
                                           ppc/gmc_altivec.o          \
                                           ppc/fdct_altivec.o         \
                                           ppc/dsputil_h264_altivec.o \
-                                          ppc/dsputil_snow_altivec.o
+                                          ppc/dsputil_snow_altivec.o \
+                                          ppc/vc1dsp_altivec.o
 
 CFLAGS += $(CFLAGS-yes)
 OBJS += $(OBJS-yes)

libavcodec/ppc/dsputil_ppc.c

@@ -251,6 +251,10 @@ long check_dcbzl_effect(void)
 }
 #endif
 
+#ifdef HAVE_ALTIVEC
+void vc1dsp_init_altivec(DSPContext* c, AVCodecContext *avctx);
+#endif
+
 void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx)
 {
     // Common optimizations whether Altivec is available or not
@@ -310,6 +314,7 @@ void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx)
         c->vertical_compose97i = ff_snow_vertical_compose97i_altivec;
         c->inner_add_yblock = ff_snow_inner_add_yblock_altivec;
 
+        vc1dsp_init_altivec(c, avctx);
 #ifdef CONFIG_ENCODERS
         if (avctx->dct_algo == FF_DCT_AUTO ||
             avctx->dct_algo == FF_DCT_ALTIVEC)