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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
This commit is contained in:
Daniel Kang 2010-12-29 18:11:27 +00:00 committed by Ronald S. Bultje
parent 54a959e483
commit 2e93fd4b5e
2 changed files with 68 additions and 0 deletions
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60
libavcodec/x86/h264_intrapred.asm
View File

@ -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
@ -1078,6 +1080,64 @@ cglobal pred8x8_tm_vp8_ssse3, 2,3,6
pavgb %1, %2
%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)
;-----------------------------------------------------------------------------

8
libavcodec/x86/h264_intrapred_init.c
View File

@ -59,6 +59,8 @@ void ff_pred8x8_tm_vp8_mmx (uint8_t *src, int stride);
void ff_pred8x8_tm_vp8_mmxext (uint8_t *src, int stride);
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_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);
@ -96,6 +98,9 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_mmxext;
h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_mmxext;
h->pred8x8 [HOR_PRED8x8 ] = ff_pred8x8_horizontal_mmxext;
#if CONFIG_GPL
h->pred8x8l [TOP_DC_PRED ] = ff_pred8x8l_top_dc_mmxext;
#endif
h->pred4x4 [DC_PRED ] = ff_pred4x4_dc_mmxext;
#if CONFIG_GPL
if (codec_id == CODEC_ID_VP8 || codec_id == CODEC_ID_H264)
@ -148,6 +153,9 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_ssse3;
h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_ssse3;
h->pred8x8 [HOR_PRED8x8 ] = ff_pred8x8_horizontal_ssse3;
#if CONFIG_GPL
h->pred8x8l [TOP_DC_PRED ] = ff_pred8x8l_top_dc_ssse3;
#endif
if (codec_id == CODEC_ID_VP8) {
h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_tm_vp8_ssse3;
h->pred4x4 [TM_VP8_PRED ] = ff_pred4x4_tm_vp8_ssse3;