[FFmpeg-cvslog] Fix add_paeth_prediction_mmx for rgb48

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Apr 27 19:54:32 2011 +0200| [52a81cd0e413eb54f8d96a79d84f588fe01cc0cc] | committer: Michael Niedermayer

Fix add_paeth_prediction_mmx for rgb48
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=52a81cd0e413eb54f8d96a79d84f588fe01cc0cc
---

 libavcodec/x86/png_mmx.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavcodec/x86/png_mmx.c b/libavcodec/x86/png_mmx.c
index 6e4c06c..3b28412 100644
--- a/libavcodec/x86/png_mmx.c
+++ b/libavcodec/x86/png_mmx.c
@@ -55,8 +55,11 @@ static void add_bytes_l2_mmx(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w)
 #define PAETH(cpu, abs3)\
 static void add_paeth_prediction_##cpu(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp)\
 {\
-    x86_reg i = -bpp;\
-    x86_reg end = w-3;\
+    x86_reg i, end;\
+    if(bpp>4) add_paeth_prediction_##cpu(dst+bpp/2, src+bpp/2, top+bpp/2, w-bpp/2, -bpp);\
+    if(bpp<0) bpp=-bpp;\
+    i= -bpp;\
+    end = w-3;\
     __asm__ volatile(\
         "pxor      %%mm7, %%mm7 \n"\
         "movd    (%1,%0), %%mm0 \n"\