📄 dct-a.asm.svn-base
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MMX_SUMSUB_BA mm0, mm1 ; mm0 = a1, mm1 = a3 MMX_SUMSUB_BA mm0, mm4 ; mm0 = dst0, mm1 = dst4 movq [eax+disp+0*16], mm0 movq [eax+disp+4*16], mm4 movq mm0, mm1 ; a3 psraw mm0, 1 ; a3>>1 paddw mm0, mm2 ; a2 + (a3>>1) psraw mm2, 1 ; a2>>1 psubw mm2, mm1 ; (a2>>1) - a3 movq [eax+disp+2*16], mm0 movq [eax+disp+6*16], mm2 movq mm0, mm6 psraw mm0, 1 paddw mm0, mm6 ; d25+(d25>>1) movq mm1, mm3 psubw mm1, mm7 ; a5 = d07-d34-(d25+(d25>>1)) psubw mm1, mm0 movq mm0, mm5 psraw mm0, 1 paddw mm0, mm5 ; d16+(d16>>1) movq mm2, mm3 paddw mm2, mm7 ; a6 = d07+d34-(d16+(d16>>1)) psubw mm2, mm0 movq mm0, mm3 psraw mm0, 1 paddw mm0, mm3 ; d07+(d07>>1) paddw mm0, mm5 paddw mm0, mm6 ; a4 = d16+d25+(d07+(d07>>1)) movq mm3, mm7 psraw mm3, 1 paddw mm3, mm7 ; d34+(d34>>1) paddw mm3, mm5 psubw mm3, mm6 ; a7 = d16-d25+(d34+(d34>>1)) movq mm7, mm3 psraw mm7, 2 paddw mm7, mm0 ; a4 + (a7>>2) movq mm6, mm2 psraw mm6, 2 paddw mm6, mm1 ; a5 + (a6>>2) psraw mm0, 2 psraw mm1, 2 psubw mm0, mm3 ; (a4>>2) - a7 psubw mm2, mm1 ; a6 - (a5>>2) movq [eax+disp+1*16], mm7 movq [eax+disp+3*16], mm6 movq [eax+disp+5*16], mm2 movq [eax+disp+7*16], mm0 %assign disp disp+8 %endrep ret;-----------------------------------------------------------------------------; void __cdecl x264_yidct8_mmx( int16_t dest[8][8] );;-----------------------------------------------------------------------------ALIGN 16x264_yidct8_mmx: mov eax, [esp+04] ; dest ;------------------------------------------------------------------------- ; vertical idct ( compute 4 columns at a time -> 2 loops ) ;------------------------------------------------------------------------- %assign disp 0 %rep 2 movq mm1, [eax+disp+1*16] ; mm1 = d1 movq mm3, [eax+disp+3*16] ; mm3 = d3 movq mm5, [eax+disp+5*16] ; mm5 = d5 movq mm7, [eax+disp+7*16] ; mm7 = d7 movq mm4, mm7 psraw mm4, 1 movq mm0, mm5 psubw mm0, mm7 psubw mm0, mm4 psubw mm0, mm3 ; mm0 = e1 movq mm6, mm3 psraw mm6, 1 movq mm2, mm7 psubw mm2, mm6 psubw mm2, mm3 paddw mm2, mm1 ; mm2 = e3 movq mm4, mm5 psraw mm4, 1 paddw mm4, mm5 paddw mm4, mm7 psubw mm4, mm1 ; mm4 = e5 movq mm6, mm1 psraw mm6, 1 paddw mm6, mm1 paddw mm6, mm5 paddw mm6, mm3 ; mm6 = e7 movq mm1, mm0 movq mm3, mm4 movq mm5, mm2 movq mm7, mm6 psraw mm6, 2 psraw mm3, 2 psraw mm5, 2 psraw mm0, 2 paddw mm1, mm6 ; mm1 = f1 paddw mm3, mm2 ; mm3 = f3 psubw mm5, mm4 ; mm5 = f5 psubw mm7, mm0 ; mm7 = f7 movq mm2, [eax+disp+2*16] ; mm2 = d2 movq mm6, [eax+disp+6*16] ; mm6 = d6 movq mm4, mm2 movq mm0, mm6 psraw mm4, 1 psraw mm6, 1 psubw mm4, mm0 ; mm4 = a4 paddw mm6, mm2 ; mm6 = a6 movq mm2, [eax+disp+0*16] ; mm2 = d0 movq mm0, [eax+disp+4*16] ; mm0 = d4 MMX_SUMSUB_BA mm0, mm2 ; mm0 = a0, mm2 = a2 MMX_SUMSUB_BADC mm6, mm0, mm4, mm2 ; mm6 = f0, mm0 = f6 ; mm4 = f2, mm2 = f4 MMX_SUMSUB_BADC mm7, mm6, mm5, mm4 ; mm7 = g0, mm6 = g7 ; mm5 = g1, mm4 = g6 MMX_SUMSUB_BADC mm3, mm2, mm1, mm0 ; mm3 = g2, mm2 = g5 ; mm1 = g3, mm0 = g4 movq [eax+disp+0*16], mm7 movq [eax+disp+1*16], mm5 movq [eax+disp+2*16], mm3 movq [eax+disp+3*16], mm1 movq [eax+disp+4*16], mm0 movq [eax+disp+5*16], mm2 movq [eax+disp+6*16], mm4 movq [eax+disp+7*16], mm6 %assign disp disp+8 %endrep ret;-----------------------------------------------------------------------------; void __cdecl x264_pixel_add_8x8_mmx( uint8_t *dst, int16_t src[8][8] );;-----------------------------------------------------------------------------ALIGN 16x264_pixel_add_8x8_mmx: mov eax, [esp+4] ; dst mov edx, [esp+8] ; src MMX_ZERO mm7 %assign disp 0 %rep 8 movq mm0, [eax] movq mm2, [edx+disp] movq mm3, [edx+disp+8] movq mm1, mm0 psraw mm2, 6 psraw mm3, 6 punpcklbw mm0, mm7 punpckhbw mm1, mm7 paddw mm0, mm2 paddw mm1, mm3 packuswb mm0, mm1 movq [eax], mm0 add eax, FDEC_STRIDE %assign disp disp+16 %endrep ret;-----------------------------------------------------------------------------; void __cdecl x264_transpose_8x8_mmx( int16_t src[8][8] );;-----------------------------------------------------------------------------ALIGN 16x264_transpose_8x8_mmx: mov eax, [esp+4] movq mm0, [eax ] movq mm1, [eax+ 16] movq mm2, [eax+ 32] movq mm3, [eax+ 48] MMX_TRANSPOSE mm0, mm1, mm2, mm3, mm4 movq [eax ], mm0 movq [eax+ 16], mm3 movq [eax+ 32], mm4 movq [eax+ 48], mm2 movq mm0, [eax+ 72] movq mm1, [eax+ 88] movq mm2, [eax+104] movq mm3, [eax+120] MMX_TRANSPOSE mm0, mm1, mm2, mm3, mm4 movq [eax+ 72], mm0 movq [eax+ 88], mm3 movq [eax+104], mm4 movq [eax+120], mm2 movq mm0, [eax+ 8] movq mm1, [eax+ 24] movq mm2, [eax+ 40] movq mm3, [eax+ 56] MMX_TRANSPOSE mm0, mm1, mm2, mm3, mm4 movq mm1, [eax+ 64] movq mm5, [eax+ 80] movq mm6, [eax+ 96] movq mm7, [eax+112] movq [eax+ 64], mm0 movq [eax+ 80], mm3 movq [eax+ 96], mm4 movq [eax+112], mm2 MMX_TRANSPOSE mm1, mm5, mm6, mm7, mm4 movq [eax+ 8], mm1 movq [eax+ 24], mm7 movq [eax+ 40], mm4 movq [eax+ 56], mm6 ret;-----------------------------------------------------------------------------; void __cdecl x264_sub8x8_dct8_mmx( int16_t dct[8][8], uint8_t *pix1, uint8_t *pix2 );-----------------------------------------------------------------------------cglobal x264_sub8x8_dct8_mmx push dword [esp+12] push dword [esp+12] push dword [esp+12] call x264_pixel_sub_8x8_mmx call x264_ydct8_mmx call x264_transpose_8x8_mmx add esp, 12 jmp x264_ydct8_mmx;-----------------------------------------------------------------------------; void __cdecl x264_add8x8_idct8_mmx( uint8_t *dst, int16_t dct[8][8] );-----------------------------------------------------------------------------cglobal x264_add8x8_idct8_mmx mov eax, [esp+8] add word [eax], 32 push eax call x264_yidct8_mmx call x264_transpose_8x8_mmx call x264_yidct8_mmx add esp, 4 jmp x264_pixel_add_8x8_mmx;-----------------------------------------------------------------------------; void __cdecl x264_sub8x8_dct_mmx( int16_t dct[4][4][4],; uint8_t *pix1, uint8_t *pix2 );-----------------------------------------------------------------------------%macro SUB_NxN_DCT 4cglobal %1 mov edx, [esp+12] mov ecx, [esp+ 8] mov eax, [esp+ 4] add edx, %4 add ecx, %4 add eax, %3 push edx push ecx push eax call %2 add dword [esp+0], %3 add dword [esp+4], %4*FENC_STRIDE-%4 add dword [esp+8], %4*FDEC_STRIDE-%4 call %2 add dword [esp+0], %3 add dword [esp+4], %4 add dword [esp+8], %4 call %2 add esp, 12 jmp %2%endmacro;-----------------------------------------------------------------------------; void __cdecl x264_add8x8_idct_mmx( uint8_t *pix, int16_t dct[4][4][4] );-----------------------------------------------------------------------------%macro ADD_NxN_IDCT 4cglobal %1 mov ecx, [esp+8] mov eax, [esp+4] add ecx, %3 add eax, %4 push ecx push eax call %2 add dword [esp+0], %4*FDEC_STRIDE-%4 add dword [esp+4], %3 call %2 add dword [esp+0], %4 add dword [esp+4], %3 call %2 add esp, 8 jmp %2%endmacroSUB_NxN_DCT x264_sub8x8_dct_mmx, x264_sub4x4_dct_mmx, 32, 4ADD_NxN_IDCT x264_add8x8_idct_mmx, x264_add4x4_idct_mmx, 32, 4SUB_NxN_DCT x264_sub16x16_dct_mmx, x264_sub8x8_dct_mmx, 128, 8ADD_NxN_IDCT x264_add16x16_idct_mmx, x264_add8x8_idct_mmx, 128, 8SUB_NxN_DCT x264_sub16x16_dct8_mmx, x264_sub8x8_dct8_mmx, 128, 8ADD_NxN_IDCT x264_add16x16_idct8_mmx, x264_add8x8_idct8_mmx, 128, 8;-----------------------------------------------------------------------------; void __cdecl x264_zigzag_scan_4x4_field_mmx( int level[16], int16_t dct[4][4] );-----------------------------------------------------------------------------cglobal x264_zigzag_scan_4x4_field_mmx mov edx, [esp+8] mov ecx, [esp+4] punpcklwd mm0, [edx] punpckhwd mm1, [edx] punpcklwd mm2, [edx+8] punpckhwd mm3, [edx+8] punpcklwd mm4, [edx+16] punpckhwd mm5, [edx+16] punpcklwd mm6, [edx+24] punpckhwd mm7, [edx+24] psrad mm0, 16 psrad mm1, 16 psrad mm2, 16 psrad mm3, 16 psrad mm4, 16 psrad mm5, 16 psrad mm6, 16 psrad mm7, 16 movq [ecx ], mm0 movq [ecx+16], mm2 movq [ecx+24], mm3 movq [ecx+32], mm4 movq [ecx+40], mm5 movq [ecx+48], mm6 movq [ecx+56], mm7 movq [ecx+12], mm1 movd [ecx+ 8], mm2 ret⌨️ 快捷键说明
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