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| author | Scott LaVarnway <slavarnway@google.com> | 2011-11-17 12:54:42 -0500 |
|---|---|---|
| committer | Tero Rintaluoma <teror@google.com> | 2011-11-25 09:24:04 +0200 |
| commit | 4a91541c946c1fc2655a942ec79033618f03c4ca (patch) | |
| tree | 70093355ebd25dd2c79515f7950c8490f6937355 /vp8/decoder/x86/dequantize_mmx.asm | |
| parent | 7b0feac4a4386eef3e1ea851e52e4f30935e255d (diff) | |
| download | libvpx-4a91541c946c1fc2655a942ec79033618f03c4ca.tar libvpx-4a91541c946c1fc2655a942ec79033618f03c4ca.tar.gz libvpx-4a91541c946c1fc2655a942ec79033618f03c4ca.tar.bz2 libvpx-4a91541c946c1fc2655a942ec79033618f03c4ca.zip | |
Modified the inverse walsh to output directly
to the dqcoeff or qcoeff buffer. The encoder would
populate the dc coeffs of the y blocks as a separate
stage (recon_dcblock) and the decoder would use a special
version of the idct. This change eliminates the extra copy
and reduces the code footprint.
[Tero] Added needed changes to armv6 and NEON assembly.
Change-Id: I83202ffdbaf83f6e5dd69f4ba2519fcf0b13b3ba
Diffstat (limited to 'vp8/decoder/x86/dequantize_mmx.asm')
| -rw-r--r-- | vp8/decoder/x86/dequantize_mmx.asm | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/vp8/decoder/x86/dequantize_mmx.asm b/vp8/decoder/x86/dequantize_mmx.asm index 648bde4c5..de9eba89f 100644 --- a/vp8/decoder/x86/dequantize_mmx.asm +++ b/vp8/decoder/x86/dequantize_mmx.asm @@ -246,207 +246,6 @@ sym(vp8_dequant_idct_add_mmx): pop rbp ret - -;void dequant_dc_idct_add_mmx( -;short *input, 0 -;short *dq, 1 -;unsigned char *dest, 2 -;int stride, 3 -;int Dc) 4 -global sym(vp8_dequant_dc_idct_add_mmx) -sym(vp8_dequant_dc_idct_add_mmx): - push rbp - mov rbp, rsp - SHADOW_ARGS_TO_STACK 5 - GET_GOT rbx - ; end prolog - - mov rax, arg(0) ;input - mov rdx, arg(1) ;dq - - movq mm0, [rax ] - pmullw mm0, [rdx] - - movq mm1, [rax +8] - pmullw mm1, [rdx +8] - - movq mm2, [rax+16] - pmullw mm2, [rdx+16] - - movq mm3, [rax+24] - pmullw mm3, [rdx+24] - - mov rdx, arg(2) ;pred - pxor mm7, mm7 - - - movq [rax], mm7 - movq [rax+8], mm7 - - movq [rax+16],mm7 - movq [rax+24],mm7 - - ; move lower word of Dc to lower word of mm0 - psrlq mm0, 16 - movzx rcx, word ptr arg(4) ;Dc - psllq mm0, 16 - movq mm7, rcx - por mm0, mm7 - - movsxd rax, dword ptr arg(3) ;stride - - psubw mm0, mm2 ; b1= 0-2 - paddw mm2, mm2 ; - - movq mm5, mm1 - paddw mm2, mm0 ; a1 =0+2 - - pmulhw mm5, [GLOBAL(x_s1sqr2)]; - paddw mm5, mm1 ; ip1 * sin(pi/8) * sqrt(2) - - movq mm7, mm3 ; - pmulhw mm7, [GLOBAL(x_c1sqr2less1)]; - - paddw mm7, mm3 ; ip3 * cos(pi/8) * sqrt(2) - psubw mm7, mm5 ; c1 - - movq mm5, mm1 - movq mm4, mm3 - - pmulhw mm5, [GLOBAL(x_c1sqr2less1)] - paddw mm5, mm1 - - pmulhw mm3, [GLOBAL(x_s1sqr2)] - paddw mm3, mm4 - - paddw mm3, mm5 ; d1 - movq mm6, mm2 ; a1 - - movq mm4, mm0 ; b1 - paddw mm2, mm3 ;0 - - paddw mm4, mm7 ;1 - psubw mm0, mm7 ;2 - - psubw mm6, mm3 ;3 - - movq mm1, mm2 ; 03 02 01 00 - movq mm3, mm4 ; 23 22 21 20 - - punpcklwd mm1, mm0 ; 11 01 10 00 - punpckhwd mm2, mm0 ; 13 03 12 02 - - punpcklwd mm3, mm6 ; 31 21 30 20 - punpckhwd mm4, mm6 ; 33 23 32 22 - - movq mm0, mm1 ; 11 01 10 00 - movq mm5, mm2 ; 13 03 12 02 - - punpckldq mm0, mm3 ; 30 20 10 00 - punpckhdq mm1, mm3 ; 31 21 11 01 - - punpckldq mm2, mm4 ; 32 22 12 02 - punpckhdq mm5, mm4 ; 33 23 13 03 - - movq mm3, mm5 ; 33 23 13 03 - - psubw mm0, mm2 ; b1= 0-2 - paddw mm2, mm2 ; - - movq mm5, mm1 - paddw mm2, mm0 ; a1 =0+2 - - pmulhw mm5, [GLOBAL(x_s1sqr2)]; - paddw mm5, mm1 ; ip1 * sin(pi/8) * sqrt(2) - - movq mm7, mm3 ; - pmulhw mm7, [GLOBAL(x_c1sqr2less1)]; - - paddw mm7, mm3 ; ip3 * cos(pi/8) * sqrt(2) - psubw mm7, mm5 ; c1 - - movq mm5, mm1 - movq mm4, mm3 - - pmulhw mm5, [GLOBAL(x_c1sqr2less1)] - paddw mm5, mm1 - - pmulhw mm3, [GLOBAL(x_s1sqr2)] - paddw mm3, mm4 - - paddw mm3, mm5 ; d1 - paddw mm0, [GLOBAL(fours)] - - paddw mm2, [GLOBAL(fours)] - movq mm6, mm2 ; a1 - - movq mm4, mm0 ; b1 - paddw mm2, mm3 ;0 - - paddw mm4, mm7 ;1 - psubw mm0, mm7 ;2 - - psubw mm6, mm3 ;3 - psraw mm2, 3 - - psraw mm0, 3 - psraw mm4, 3 - - psraw mm6, 3 - - movq mm1, mm2 ; 03 02 01 00 - movq mm3, mm4 ; 23 22 21 20 - - punpcklwd mm1, mm0 ; 11 01 10 00 - punpckhwd mm2, mm0 ; 13 03 12 02 - - punpcklwd mm3, mm6 ; 31 21 30 20 - punpckhwd mm4, mm6 ; 33 23 32 22 - - movq mm0, mm1 ; 11 01 10 00 - movq mm5, mm2 ; 13 03 12 02 - - punpckldq mm0, mm3 ; 30 20 10 00 - punpckhdq mm1, mm3 ; 31 21 11 01 - - punpckldq mm2, mm4 ; 32 22 12 02 - punpckhdq mm5, mm4 ; 33 23 13 03 - - pxor mm7, mm7 - - movd mm4, [rdx] - punpcklbw mm4, mm7 - paddsw mm0, mm4 - packuswb mm0, mm7 - movd [rdx], mm0 - - movd mm4, [rdx+rax] - punpcklbw mm4, mm7 - paddsw mm1, mm4 - packuswb mm1, mm7 - movd [rdx+rax], mm1 - - movd mm4, [rdx+2*rax] - punpcklbw mm4, mm7 - paddsw mm2, mm4 - packuswb mm2, mm7 - movd [rdx+rax*2], mm2 - - add rdx, rax - - movd mm4, [rdx+2*rax] - punpcklbw mm4, mm7 - paddsw mm5, mm4 - packuswb mm5, mm7 - movd [rdx+rax*2], mm5 - - ; begin epilog - RESTORE_GOT - UNSHADOW_ARGS - pop rbp - ret - - SECTION_RODATA align 16 x_s1sqr2: |