diff options
| author | Daniel Kang <daniel.d.kang@gmail.com> | 2010-12-29 21:52:41 +0000 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2010-12-29 21:52:41 +0000 |
| commit | d0aebe23e21b86c0c87cabce823722fab5fef0c8 (patch) | |
| tree | 351786b6650c07159a41f46e3c84b0422ab7d225 /libavcodec/x86/h264_intrapred.asm | |
| parent | 76497232ef72ae6323ff7a09653905a014b88846 (diff) | |
Port pred4x4_vertical_right_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 26158 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/x86/h264_intrapred.asm')
| -rw-r--r-- | libavcodec/x86/h264_intrapred.asm | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libavcodec/x86/h264_intrapred.asm b/libavcodec/x86/h264_intrapred.asm index e627b1ee37..2f8eccbd9c 100644 --- a/libavcodec/x86/h264_intrapred.asm +++ b/libavcodec/x86/h264_intrapred.asm @@ -2630,4 +2630,35 @@ cglobal pred4x4_horizontal_down_mmxext, 3,3 movh [r0+r2*2], m5 movh [r0+r2*1], m3 RET + +;----------------------------------------------------------------------------- +; void pred4x4_vertical_right_mmxext(uint8_t *src, const uint8_t *topright, int stride) +;----------------------------------------------------------------------------- + +INIT_MMX +%define PALIGNR PALIGNR_MMX +cglobal pred4x4_vertical_right_mmxext, 3,3 + sub r0, r2 + lea r1, [r0+r2*2] + movh m0, [r0] ; ........t3t2t1t0 + movq m5, m0 + PALIGNR m0, [r0-8], 7, m1 ; ......t3t2t1t0lt + pavgb m5, m0 + PALIGNR m0, [r0+r2*1-8], 7, m1 ; ....t3t2t1t0ltl0 + movq m1, m0 + PALIGNR m0, [r0+r2*2-8], 7, m2 ; ..t3t2t1t0ltl0l1 + movq m2, m0 + PALIGNR m0, [r1+r2*1-8], 7, m3 ; t3t2t1t0ltl0l1l2 + PRED4x4_LOWPASS m3, m1, m0, m2, m4 + movq m1, m3 + psrlq m3, 16 + psllq m1, 48 + movh [r0+r2*1], m5 + movh [r0+r2*2], m3 + PALIGNR m5, m1, 7, m2 + psllq m1, 8 + movh [r1+r2*1], m5 + PALIGNR m3, m1, 7, m1 + movh [r1+r2*2], m3 + RET %endif |