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Revision 4a9ca0a2

ID4a9ca0a279375e8dae774deef0c22b437935db20
Parent 1435e4cc
Child 469bd7b1

Added by Loren Merritt about 13 years ago

simd and unroll png_filter_row
cycles per 1000 pixels on core2:
left: 9211->5170
top: 9283->2138
avg: 12215->7611
paeth: 64024->17360
overall rgb png decoding speed: +45%
overall greyscale png decoding speed: +6%

Originally committed as revision 12164 to svn://svn.ffmpeg.org/ffmpeg/trunk

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