[FFmpeg-devel] [PATCH]SH patch from www.dgstation.co.kr

[Carl Eugen Hoyos]

Hi!

I was looking at issue 769 and found three patches on the company's 
homepage. One disables some optimisation on SH, one totally breaks the 
build and I'm attaching the third one.

Carl Eugen
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Index: libavcodec/sh4/dsputil_sh4.c
===================================================================
--- libavcodec/sh4/dsputil_sh4.c	(revision 16313)
+++ libavcodec/sh4/dsputil_sh4.c	(working copy)
@@ -27,10 +27,10 @@
 static void memzero_align8(void *dst,size_t size)
 {
         int fpscr;
-        fp_single_enter(fpscr);
         dst = (char *)dst + size;
         size /= 32;
         __asm__ volatile (
+        " fschg\n"  //single float mode
         " fldi0 fr0\n"
         " fldi0 fr1\n"
         " fschg\n"  // double
@@ -43,7 +43,6 @@
         " fmov  dr0, at -%0\n"
         " fschg" //back to single
         : "+r"(dst),"+r"(size) :: "memory" );
-        fp_single_leave(fpscr);
 }
 
 static void clear_blocks_sh4(DCTELEM *blocks)