diff options
| author | Daniel Kang <daniel.d.kang@gmail.com> | 2010-12-29 18:11:27 +0000 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2010-12-29 18:11:27 +0000 |
| commit | 2e93fd4b5ec89473fc16b61090c6f26ec8b8bf21 (patch) | |
| tree | cc683817effe0a6b5f83a9a66f4823036f29186c /libavcodec/x86/h264_intrapred.asm | |
| parent | 54a959e4837520a00634248c07ab373bf2f9776e (diff) | |
Port pred8x8l_top_dc_mmxext/ssse3 (H.264 intra prediction) from x264 to FFmpeg.
Original authors: Holger Lubitz <holger lubitz org>, Jason Garrett-Glaser
<darkshikari gmail com> (approves LGPL relicensing for this code) and Loren
Merritt <lorenm at u dot washington dot edu> (approves LGPL relicensing for
this code). Patch by Daniel Kang <daniel dot d dot kang at gmail com>, as
part of Google's GCI 2010.
Originally committed as revision 26137 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/x86/h264_intrapred.asm')
| -rw-r--r-- | libavcodec/x86/h264_intrapred.asm | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libavcodec/x86/h264_intrapred.asm b/libavcodec/x86/h264_intrapred.asm index 832b8cdcae..5b8b4b4eec 100644 --- a/libavcodec/x86/h264_intrapred.asm +++ b/libavcodec/x86/h264_intrapred.asm @@ -23,6 +23,7 @@ ;****************************************************************************** %include "x86inc.asm" +%include "x86util.asm" SECTION_RODATA @@ -40,6 +41,7 @@ SECTION .text cextern pb_1 cextern pb_3 +cextern pw_4 cextern pw_5 cextern pw_16 cextern pw_17 @@ -1079,6 +1081,64 @@ cglobal pred8x8_tm_vp8_ssse3, 2,3,6 %endmacro ;----------------------------------------------------------------------------- +; void pred8x8l_top_dc(uint8_t *src, int has_topleft, int has_topright, int stride) +;----------------------------------------------------------------------------- +%ifdef CONFIG_GPL +%macro PRED8x8L_TOP_DC 1 +cglobal pred8x8l_top_dc_%1, 4,4 + sub r0, r3 + pxor mm7, mm7 + movq mm0, [r0-8] + movq mm3, [r0] + movq mm1, [r0+8] + movq mm2, mm3 + movq mm4, mm3 + PALIGNR mm2, mm0, 7, mm0 + PALIGNR mm1, mm4, 1, mm4 + test r1, r1 ; top_left + jz .fix_lt_2 + test r2, r2 ; top_right + jz .fix_tr_1 + jmp .body +.fix_lt_2: + movq mm5, mm3 + pxor mm5, mm2 + psllq mm5, 56 + psrlq mm5, 56 + pxor mm2, mm5 + test r2, r2 ; top_right + jnz .body +.fix_tr_1: + movq mm5, mm3 + pxor mm5, mm1 + psrlq mm5, 56 + psllq mm5, 56 + pxor mm1, mm5 +.body + PRED4x4_LOWPASS mm0, mm2, mm1, mm3, mm5 + psadbw mm7, mm0 + paddw mm7, [pw_4] + psrlw mm7, 3 + pshufw mm7, mm7, 0 + packuswb mm7, mm7 +%rep 3 + movq [r0+r3*1], mm7 + movq [r0+r3*2], mm7 + lea r0, [r0+r3*2] +%endrep + movq [r0+r3*1], mm7 + movq [r0+r3*2], mm7 + RET +%endmacro + +INIT_MMX +%define PALIGNR PALIGNR_MMX +PRED8x8L_TOP_DC mmxext +%define PALIGNR PALIGNR_SSSE3 +PRED8x8L_TOP_DC ssse3 +%endif + +;----------------------------------------------------------------------------- ; void pred4x4_dc_mmxext(uint8_t *src, const uint8_t *topright, int stride) ;----------------------------------------------------------------------------- |