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Port pred8x8l_down_left_sse2/ssse3 (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 26142 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Daniel Kang 2010-12-29 19:02:50 +00:00 committed by Ronald S. Bultje
parent d8e481bb86
commit c249e66576
2 changed files with 101 additions and 0 deletions
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95
libavcodec/x86/h264_intrapred.asm
View File

@ -1374,6 +1374,101 @@ PRED8x8L_VERTICAL mmxext
PRED8x8L_VERTICAL ssse3
%endif
;-----------------------------------------------------------------------------
;void pred8x8l_down_left(uint8_t *src, int has_topleft, int has_topright, int stride)
;-----------------------------------------------------------------------------
%ifdef CONFIG_GPL
%macro PRED8x8L_DOWN_LEFT 1
cglobal pred8x8l_down_left_%1, 4,4
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 ; top_left
jz .fix_lt_2
test r2, r2 ; top_right
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 ; top_right
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
movq2dq xmm3, mm4
test r2, r2 ; top_right
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:
movq2dq xmm4, mm1
psrlq mm1, 56
movq2dq xmm5, mm1
lea r1, [r0+r3*2]
pslldq xmm4, 8
por xmm3, xmm4
movdqa xmm2, xmm3
psrldq xmm2, 1
pslldq xmm5, 15
por xmm2, xmm5
lea r2, [r1+r3*2]
movdqa xmm1, xmm3
pslldq xmm1, 1
INIT_XMM
PRED4x4_LOWPASS xmm0, xmm1, xmm2, xmm3, xmm4
psrldq xmm0, 1
movq [r0+r3*1], xmm0
psrldq xmm0, 1
movq [r0+r3*2], xmm0
psrldq xmm0, 1
lea r0, [r2+r3*2]
movq [r1+r3*1], xmm0
psrldq xmm0, 1
movq [r1+r3*2], xmm0
psrldq xmm0, 1
movq [r2+r3*1], xmm0
psrldq xmm0, 1
movq [r2+r3*2], xmm0
psrldq xmm0, 1
movq [r0+r3*1], xmm0
psrldq xmm0, 1
movq [r0+r3*2], xmm0
RET
%endmacro
INIT_MMX
%define PALIGNR PALIGNR_MMX
PRED8x8L_DOWN_LEFT sse2
INIT_MMX
%define PALIGNR PALIGNR_SSSE3
PRED8x8L_DOWN_LEFT ssse3
%endif
;-----------------------------------------------------------------------------
; void pred4x4_dc_mmxext(uint8_t *src, const uint8_t *topright, int stride)
;-----------------------------------------------------------------------------

6
libavcodec/x86/h264_intrapred_init.c
View File

@ -67,6 +67,8 @@ 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_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_pred4x4_dc_mmxext (uint8_t *src, const uint8_t *topright, int stride);
void ff_pred4x4_down_left_mmxext (uint8_t *src, const uint8_t *topright, int stride);
void ff_pred4x4_tm_vp8_mmx (uint8_t *src, const uint8_t *topright, int stride);
@ -143,6 +145,9 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
if (mm_flags & AV_CPU_FLAG_SSE2) {
h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_sse2;
#if CONFIG_GPL
h->pred8x8l [DIAG_DOWN_LEFT_PRED] = ff_pred8x8l_down_left_sse2;
#endif
if (codec_id == CODEC_ID_VP8) {
h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_tm_vp8_sse2;
h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_tm_vp8_sse2;
@ -167,6 +172,7 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
h->pred8x8l [DC_PRED ] = ff_pred8x8l_dc_ssse3;
h->pred8x8l [HOR_PRED ] = ff_pred8x8l_horizontal_ssse3;
h->pred8x8l [VERT_PRED ] = ff_pred8x8l_vertical_ssse3;
h->pred8x8l [DIAG_DOWN_LEFT_PRED] = ff_pred8x8l_down_left_ssse3;
#endif
if (codec_id == CODEC_ID_VP8) {
h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_tm_vp8_ssse3;