VIS optimized motion compensation code. by (David S. Miller <davem at redhat dot com>)

ported to ffmpeg by (ja2morri at csclub dot uwaterloo dot ca (james morrison))
useable under LGPL with their agreement

Originally committed as revision 3048 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/Makefile

@@ -161,6 +161,11 @@ ifeq ($(TARGET_ARCH_SH4),yes)
 OBJS+= sh4/idct_sh4.o sh4/dsputil_sh4.o sh4/dsputil_align.o
 endif
 
+ifeq ($(TARGET_ARCH_SPARC),yes)
+OBJS+=sparc/dsputil_vis.o
+CFLAGS+= -mcpu=ultrasparc -mtune=ultrasparc
+endif
+
 
 SRCS := $(OBJS:.o=.c) $(ASM_OBJS:.o=.S)
 OBJS := $(OBJS) $(ASM_OBJS)

libavcodec/dsputil.c

@@ -3286,6 +3286,9 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
 #ifdef HAVE_MLIB
     dsputil_init_mlib(c, avctx);
 #endif
+#ifdef ARCH_SPARC
+   dsputil_init_vis(c,avctx);
+#endif
 #ifdef ARCH_ALPHA
     dsputil_init_alpha(c, avctx);
 #endif

libavcodec/dsputil.h

@@ -422,6 +422,12 @@ void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
 
 void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
 
+#elif defined(ARCH_SPARC)
+
+/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
+#define __align8 __attribute__ ((aligned (8)))
+void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
+
 #elif defined(ARCH_ALPHA)
 
 #define __align8 __attribute__ ((aligned (8)))