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Port pred8x8l_dc_mmx/ssse3 (H.264 intra prediction) from x264 to FFmpeg.

Browse Source 
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 26138 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Daniel Kang 2010-12-29 18:33:10 +00:00 committed by Ronald S. Bultje
parent 2e93fd4b5e
commit abab14eac0
2 changed files with 109 additions and 0 deletions
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105
libavcodec/x86/h264_intrapred.asm
View File

@ -43,6 +43,7 @@ cextern pb_1
cextern pb_3
cextern pw_4
cextern pw_5
cextern pw_8
cextern pw_16
cextern pw_17
cextern pw_32
@ -1138,6 +1139,110 @@ PRED8x8L_TOP_DC mmxext
PRED8x8L_TOP_DC ssse3
%endif
;-----------------------------------------------------------------------------
;void pred8x8l_dc(uint8_t *src, int has_topleft, int has_topright, int stride)
;-----------------------------------------------------------------------------
%ifdef CONFIG_GPL
%macro PRED8x8L_DC 1
cglobal pred8x8l_dc_%1, 4,5
sub r0, r3
lea r4, [r0+r3*2]
movq mm0, [r0+r3*1-8]
punpckhbw mm0, [r0+r3*0-8]
movq mm1, [r4+r3*1-8]
punpckhbw mm1, [r0+r3*2-8]
mov r4, r0
punpckhwd mm1, mm0
lea r0, [r0+r3*4]
movq mm2, [r0+r3*1-8]
punpckhbw mm2, [r0+r3*0-8]
lea r0, [r0+r3*2]
movq mm3, [r0+r3*1-8]
punpckhbw mm3, [r0+r3*0-8]
punpckhwd mm3, mm2
punpckhdq mm3, mm1
lea r0, [r0+r3*2]
movq mm0, [r0+r3*0-8]
movq mm1, [r4]
mov r0, r4
movq mm4, mm3
movq mm2, mm3
PALIGNR mm4, mm0, 7, mm0
PALIGNR mm1, mm2, 1, mm2
test r1, r1
jnz .do_left
.fix_lt_1:
movq mm5, mm3
pxor mm5, mm4
psrlq mm5, 56
psllq mm5, 48
pxor mm1, mm5
jmp .do_left
.fix_lt_2:
movq mm5, mm3
pxor mm5, mm2
psllq mm5, 56
psrlq mm5, 56
pxor mm2, mm5
test r2, r2
jnz .body
.fix_tr_1:
movq mm5, mm3
pxor mm5, mm1
psrlq mm5, 56
psllq mm5, 56
pxor mm1, mm5
jmp .body
.do_left:
movq mm0, mm4
PRED4x4_LOWPASS mm2, mm1, mm4, mm3, mm5
movq mm4, mm0
movq mm7, mm2
PRED4x4_LOWPASS mm1, mm3, mm0, mm4, mm5
psllq mm1, 56
PALIGNR mm7, mm1, 7, mm3
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
.body
lea r1, [r0+r3*2]
PRED4x4_LOWPASS mm6, mm2, mm1, mm3, mm5
pxor mm0, mm0
pxor mm1, mm1
lea r2, [r1+r3*2]
psadbw mm0, mm7
psadbw mm1, mm6
paddw mm0, [pw_8]
paddw mm0, mm1
lea r4, [r2+r3*2]
psrlw mm0, 4
pshufw mm0, mm0, 0
packuswb mm0, mm0
movq [r0+r3*1], mm0
movq [r0+r3*2], mm0
movq [r1+r3*1], mm0
movq [r1+r3*2], mm0
movq [r2+r3*1], mm0
movq [r2+r3*2], mm0
movq [r4+r3*1], mm0
movq [r4+r3*2], mm0
RET
%endmacro
INIT_MMX
%define PALIGNR PALIGNR_MMX
PRED8x8L_DC mmxext
%define PALIGNR PALIGNR_SSSE3
PRED8x8L_DC ssse3
%endif
;-----------------------------------------------------------------------------
; void pred4x4_dc_mmxext(uint8_t *src, const uint8_t *topright, int stride)
;-----------------------------------------------------------------------------

4
libavcodec/x86/h264_intrapred_init.c
View File

@ -61,6 +61,8 @@ void ff_pred8x8_tm_vp8_sse2 (uint8_t *src, int stride);
void ff_pred8x8_tm_vp8_ssse3 (uint8_t *src, int stride);
void ff_pred8x8l_top_dc_mmxext (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_top_dc_ssse3 (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_dc_mmxext (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_dc_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);
@ -100,6 +102,7 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
h->pred8x8 [HOR_PRED8x8 ] = ff_pred8x8_horizontal_mmxext;
#if CONFIG_GPL
h->pred8x8l [TOP_DC_PRED ] = ff_pred8x8l_top_dc_mmxext;
h->pred8x8l [DC_PRED ] = ff_pred8x8l_dc_mmxext;
#endif
h->pred4x4 [DC_PRED ] = ff_pred4x4_dc_mmxext;
#if CONFIG_GPL
@ -155,6 +158,7 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
h->pred8x8 [HOR_PRED8x8 ] = ff_pred8x8_horizontal_ssse3;
#if CONFIG_GPL
h->pred8x8l [TOP_DC_PRED ] = ff_pred8x8l_top_dc_ssse3;
h->pred8x8l [DC_PRED ] = ff_pred8x8l_dc_ssse3;
#endif
if (codec_id == CODEC_ID_VP8) {
h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_tm_vp8_ssse3;