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Add mmxext version of VP8 DC Hadamard transform 

Originally committed as revision 23878 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jason Garrett-Glaser 2010-06-29 01:41:59 +00:00
parent 37355fe823
commit 004cda8e79
2 changed files with 48 additions and 0 deletions
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2
libavcodec/x86/vp8dsp-init.c
View File

@ -195,6 +195,7 @@ HVBILIN(ssse3, 8, 16, 16)
extern void ff_vp8_idct_dc_add_mmx(uint8_t *dst, DCTELEM block[16], int stride);
extern void ff_vp8_idct_dc_add_sse4(uint8_t *dst, DCTELEM block[16], int stride);
extern void ff_vp8_luma_dc_wht_mmxext(DCTELEM block[4][4][16], DCTELEM dc[16]);
#endif
#define VP8_LUMA_MC_FUNC(IDX, SIZE, OPT) \
@ -237,6 +238,7 @@ av_cold void ff_vp8dsp_init_x86(VP8DSPContext* c)
/* note that 4-tap width=16 functions are missing because w=16
* is only used for luma, and luma is always a copy or sixtap. */
if (mm_flags & FF_MM_MMX2) {
c->vp8_luma_dc_wht = ff_vp8_luma_dc_wht_mmxext;
VP8_LUMA_MC_FUNC(0, 16, mmxext);
VP8_MC_FUNC(1, 8, mmxext);
VP8_MC_FUNC(1, 4, mmxext);

46
libavcodec/x86/vp8dsp.asm
View File

@ -21,6 +21,7 @@
;******************************************************************************
%include "x86inc.asm"
%include "x86util.asm"
SECTION_RODATA
@ -141,6 +142,7 @@ filter_h6_shuf1: db 0, 5, 1, 6, 2, 7, 3, 8, 4, 9, 5, 10, 6, 11, 7, 12
filter_h6_shuf2: db 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9
filter_h6_shuf3: db 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11
cextern pw_3
cextern pw_4
cextern pw_64
@ -920,3 +922,47 @@ cglobal vp8_idct_dc_add_sse4, 3, 3, 6
pextrd [r1], xmm2, 2
pextrd [r1+r2], xmm2, 3
RET
;-----------------------------------------------------------------------------
; void vp8_luma_dc_wht_mmxext(DCTELEM block[4][4][16], DCTELEM dc[16])
;-----------------------------------------------------------------------------
%macro SCATTER_WHT 1
pextrw r1d, m0, %1
pextrw r2d, m1, %1
mov [r0+2*16*0], r1w
mov [r0+2*16*1], r2w
pextrw r1d, m2, %1
pextrw r2d, m3, %1
mov [r0+2*16*2], r1w
mov [r0+2*16*3], r2w
%endmacro
%macro HADAMARD4_1D 4
SUMSUB_BADC m%2, m%1, m%4, m%3
SUMSUB_BADC m%4, m%2, m%3, m%1
SWAP %1, %4, %3
%endmacro
INIT_MMX
cglobal vp8_luma_dc_wht_mmxext, 2,3
movq m0, [r1]
movq m1, [r1+8]
movq m2, [r1+16]
movq m3, [r1+24]
HADAMARD4_1D 0, 1, 2, 3
TRANSPOSE4x4W 0, 1, 2, 3, 4
paddw m0, [pw_3]
HADAMARD4_1D 0, 1, 2, 3
psraw m0, 3
psraw m1, 3
psraw m2, 3
psraw m3, 3
SCATTER_WHT 0
add r0, 2*16*4
SCATTER_WHT 1
add r0, 2*16*4
SCATTER_WHT 2
add r0, 2*16*4
SCATTER_WHT 3
RET