Displaying 2 results from an estimated 2 matches for "xxsum".
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2004 Aug 24
5
MMX/mmxext optimisations
quite some speed improvement indeed.
attached the updated patch to apply to svn/trunk.
j
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2004 Sep 15
1
Theora mcomp tuning...
...(const unsigned char * NewDataPtr,
+ const unsigned char * RefDataPtr1,
+ const unsigned char * RefDataPtr2,
+ ogg_uint32_t PixelsPerLine ) {
ogg_uint32_t i;
ogg_int32_t XSum=0;
ogg_int32_t XXSum=0;
@@ -204,23 +204,29 @@
return (( (XXSum<<6) - XSum*XSum ));
}
-static ogg_uint32_t GetSumAbsDiffs (unsigned char * NewDataPtr,
- unsigned char * RefDataPtr,
- ogg_uint32_t PixelsPerLine,
- ogg_uin...