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| author | Daniel Kang <daniel.d.kang@gmail.com> | 2010-12-29 21:35:34 +0000 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2010-12-29 21:35:34 +0000 |
| commit | 92f441ae863ba00438a8b496a3107a42a2e270ec (patch) | |
| tree | add559b03d9751d8a085c21d93ab22567c9a6a17 /libavcodec/x86/h264_intrapred.asm | |
| parent | e8d98764ccdf970d72d3da0150bb9a465e8f3912 (diff) | |
| download | ffmpeg-92f441ae863ba00438a8b496a3107a42a2e270ec.tar.gz | |
Port pred4x4_vertical_left_mmxext (H.264 intra prediction) from x264 (authors:
Jason, Loren, Holger) to FFmpeg. Patch by Daniel Kang <daniel dot d dot kang
at gmail com>, as part of Google's GCI 2010.
Originally committed as revision 26155 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/x86/h264_intrapred.asm')
| -rw-r--r-- | libavcodec/x86/h264_intrapred.asm | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/libavcodec/x86/h264_intrapred.asm b/libavcodec/x86/h264_intrapred.asm index b82e02fee1..81f0fc659f 100644 --- a/libavcodec/x86/h264_intrapred.asm +++ b/libavcodec/x86/h264_intrapred.asm @@ -2536,4 +2536,29 @@ cglobal pred4x4_down_left_mmxext, 3,3 psrlq m0, 8 movd [r1+r2*2], m0 RET + +;----------------------------------------------------------------------------- +; void pred4x4_vertical_left_mmxext(uint8_t *src, const uint8_t *topright, int stride) +;----------------------------------------------------------------------------- + +INIT_MMX +cglobal pred4x4_vertical_left_mmxext, 3,3 + sub r0, r2 + movq m1, [r0] + punpckldq m1, [r1] + movq m3, m1 + movq m2, m1 + psrlq m3, 8 + psrlq m2, 16 + movq m4, m3 + pavgb m4, m1 + PRED4x4_LOWPASS m0, m1, m2, m3, m5 + lea r1, [r0+r2*2] + movh [r0+r2*1], m4 + movh [r0+r2*2], m0 + psrlq m4, 8 + psrlq m0, 8 + movh [r1+r2*1], m4 + movh [r1+r2*2], m0 + RET %endif |