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Port pred8x8l_down_left_mmxext (H.264 intra prediction) from x264 (authors:

Browse Source 
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 26162 to svn://svn.ffmpeg.org/ffmpeg/trunk
oldabi
Daniel Kang 14 years ago committed by Ronald S. Bultje
parent 548b97a66a
commit 536e9b2f58
2 changed files with 111 additions and 0 deletions
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  1. 109
      libavcodec/x86/h264_intrapred.asm
  2. 2
      libavcodec/x86/h264_intrapred_init.c

109
libavcodec/x86/h264_intrapred.asm
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@ -1374,6 +1374,115 @@ PRED8x8L_VERTICAL ssse3
;void pred8x8l_down_left(uint8_t *src, int has_topleft, int has_topright, int stride)
;-----------------------------------------------------------------------------
INIT_MMX
%define PALIGNR PALIGNR_MMX
cglobal pred8x8l_down_left_mmxext, 4,5
sub r0, r3
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
jz .fix_lt_2
test r2, r2
jz .fix_tr_1
jmp .do_top
.fix_lt_2:
movq mm5, mm3
pxor mm5, mm2
psllq mm5, 56
psrlq mm5, 56
pxor mm2, mm5
test r2, r2
jnz .do_top
.fix_tr_1:
movq mm5, mm3
pxor mm5, mm1
psrlq mm5, 56
psllq mm5, 56
pxor mm1, mm5
jmp .do_top
.fix_tr_2:
punpckhbw mm3, mm3
pshufw mm1, mm3, 0xFF
jmp .do_topright
.do_top:
PRED4x4_LOWPASS mm4, mm2, mm1, mm3, mm5
movq mm7, mm4
test r2, r2
jz .fix_tr_2
movq mm0, [r0+8]
movq mm5, mm0
movq mm2, mm0
movq mm4, mm0
psrlq mm5, 56
PALIGNR mm2, mm3, 7, mm3
PALIGNR mm5, mm4, 1, mm4
PRED4x4_LOWPASS mm1, mm2, mm5, mm0, mm4
.do_topright:
lea r1, [r0+r3*2]
movq mm6, mm1
psrlq mm1, 56
movq mm4, mm1
lea r2, [r1+r3*2]
movq mm2, mm6
PALIGNR mm2, mm7, 1, mm0
movq mm3, mm6
PALIGNR mm3, mm7, 7, mm0
PALIGNR mm4, mm6, 1, mm0
movq mm5, mm7
movq mm1, mm7
movq mm7, mm6
lea r4, [r2+r3*2]
psllq mm1, 8
PRED4x4_LOWPASS mm0, mm1, mm2, mm5, mm6
PRED4x4_LOWPASS mm1, mm3, mm4, mm7, mm6
movq [r4+r3*2], mm1
movq mm2, mm0
psllq mm1, 8
psrlq mm2, 56
psllq mm0, 8
por mm1, mm2
movq [r4+r3*1], mm1
movq mm2, mm0
psllq mm1, 8
psrlq mm2, 56
psllq mm0, 8
por mm1, mm2
movq [r2+r3*2], mm1
movq mm2, mm0
psllq mm1, 8
psrlq mm2, 56
psllq mm0, 8
por mm1, mm2
movq [r2+r3*1], mm1
movq mm2, mm0
psllq mm1, 8
psrlq mm2, 56
psllq mm0, 8
por mm1, mm2
movq [r1+r3*2], mm1
movq mm2, mm0
psllq mm1, 8
psrlq mm2, 56
psllq mm0, 8
por mm1, mm2
movq [r1+r3*1], mm1
movq mm2, mm0
psllq mm1, 8
psrlq mm2, 56
psllq mm0, 8
por mm1, mm2
movq [r0+r3*2], mm1
psllq mm1, 8
psrlq mm0, 56
por mm1, mm0
movq [r0+r3*1], mm1
RET
%macro PRED8x8L_DOWN_LEFT 1
cglobal pred8x8l_down_left_%1, 4,4
sub r0, r3

2
libavcodec/x86/h264_intrapred_init.c
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@ -67,6 +67,7 @@ void ff_pred8x8l_horizontal_mmxext (uint8_t *src, int has_topleft, int has_topri
void ff_pred8x8l_horizontal_ssse3 (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_vertical_mmxext (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_vertical_ssse3 (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_down_left_mmxext (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_down_left_sse2 (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_down_left_ssse3 (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_down_right_mmxext (uint8_t *src, int has_topleft, int has_topright, int stride);
@ -132,6 +133,7 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
h->pred8x8l [DIAG_DOWN_RIGHT_PRED] = ff_pred8x8l_down_right_mmxext;
h->pred8x8l [VERT_RIGHT_PRED ] = ff_pred8x8l_vertical_right_mmxext;
h->pred8x8l [HOR_UP_PRED ] = ff_pred8x8l_horizontal_up_mmxext;
h->pred8x8l [DIAG_DOWN_LEFT_PRED ] = ff_pred8x8l_down_left_mmxext;
h->pred8x8l [HOR_DOWN_PRED ] = ff_pred8x8l_horizontal_down_mmxext;
h->pred4x4 [DIAG_DOWN_RIGHT_PRED] = ff_pred4x4_down_right_mmxext;
h->pred4x4 [VERT_RIGHT_PRED ] = ff_pred4x4_vertical_right_mmxext;

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