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| author | Michael Niedermayer <michaelni@gmx.at> | 2002-01-17 20:00:41 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2002-01-17 20:00:41 +0000 |
| commit | 0a8d8945fd2a24d8c1b4728f696b8b58fc54ceb5 (patch) | |
| tree | 63e4319a4c1716413fe46374f5812d5dbbcd677b /libavcodec/dsputil.c | |
| parent | ae40484c1ca6df311803f2061cda9f0b85c320f4 (diff) | |
| download | ffmpeg-0a8d8945fd2a24d8c1b4728f696b8b58fc54ceb5.tar.gz | |
(commit by michael)
faster simple idct in MMX
Originally committed as revision 269 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dsputil.c')
| -rw-r--r-- | libavcodec/dsputil.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c index f45d051e21..6b993d8d28 100644 --- a/libavcodec/dsputil.c +++ b/libavcodec/dsputil.c @@ -71,16 +71,16 @@ UINT8 ff_alternate_vertical_scan[64] = { 38, 46, 54, 62, 39, 47, 55, 63, }; - +/* Input permutation for the simple_idct_mmx */ static UINT8 simple_mmx_permutation[64]={ - 0x00, 0x08, 0x01, 0x09, 0x04, 0x0C, 0x05, 0x0D, - 0x10, 0x18, 0x11, 0x19, 0x14, 0x1C, 0x15, 0x1D, - 0x02, 0x0A, 0x03, 0x0B, 0x06, 0x0E, 0x07, 0x0F, - 0x12, 0x1A, 0x13, 0x1B, 0x16, 0x1E, 0x17, 0x1F, - 0x20, 0x28, 0x21, 0x29, 0x24, 0x2C, 0x25, 0x2D, - 0x30, 0x38, 0x31, 0x39, 0x34, 0x3C, 0x35, 0x3D, - 0x22, 0x2A, 0x23, 0x2B, 0x26, 0x2E, 0x27, 0x2F, - 0x32, 0x3A, 0x33, 0x3B, 0x36, 0x3E, 0x37, 0x3F, + 0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D, + 0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D, + 0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D, + 0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F, + 0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F, + 0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D, + 0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F, + 0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F, }; /* used to skip zeros at the end */ |