[FFmpeg-cvslog] r24926 - trunk/libavcodec/x86/vp56dsp.asm

[mru]

Author: mru
Date: Wed Aug 25 17:41:11 2010
New Revision: 24926

Log:
VP6: fix vp6_filter_diag4_mmx/sse on 64-bit

The stride can be negative and must be sign extended before being
used in pointer arithmetic.

Modified:
   trunk/libavcodec/x86/vp56dsp.asm

Modified: trunk/libavcodec/x86/vp56dsp.asm
==============================================================================
--- trunk/libavcodec/x86/vp56dsp.asm	Wed Aug 25 17:32:29 2010	(r24925)
+++ trunk/libavcodec/x86/vp56dsp.asm	Wed Aug 25 17:41:11 2010	(r24926)
@@ -127,6 +127,9 @@ cglobal vp6_filter_diag4_%1, 5, 7, %2
     sub         rsp, 8*15
     movq         m6, [pw_64]
 %endif
+%ifdef ARCH_X86_64
+    movsxd       r2, r2d
+%endif
 
     sub          r1, r2