text_fdct_mmx.c
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VC书籍
开发平台:
Visual C++
- #define INP eax
- #define OUT ecx
- #define TABLE ebx
- #define TABLEF ebx
- #define round_frw_row edx
- #define x0 INP + 0*16
- #define x1 INP + 1*16
- #define x2 INP + 2*16
- #define x3 INP + 3*16
- #define x4 INP + 4*16
- #define x5 INP + 5*16
- #define x6 INP + 6*16
- #define x7 INP + 7*16
- #define y0 OUT + 0*16
- #define y1 OUT + 1*16
- #define y2 OUT + 2*16
- #define y3 OUT + 3*16
- #define y4 OUT + 4*16
- #define y5 OUT + 5*16
- #define y6 OUT + 6*16
- #define y7 OUT + 7*16
- #define BITS_FRW_ACC 3
- #define SHIFT_FRW_COL BITS_FRW_ACC
- #define SHIFT_FRW_ROW (BITS_FRW_ACC + 17)
- #define SHIFT_FRW_ROW_CLIP2 (4)
- #define SHIFT_FRW_ROW_CLIP1 ( SHIFT_FRW_ROW - SHIFT_FRW_ROW_CLIP2 )
- #define RND_FRW_ROW (1 << (SHIFT_FRW_ROW-1))
- #define RND_FRW_COL (1 << (SHIFT_FRW_COL-1))
- const static __int64 one_corr = 0x0001000100010001;
- const static long r_frw_row[2] = {RND_FRW_ROW, RND_FRW_ROW };
- const static short tg_all_16[] = {
- 13036, 13036, 13036, 13036,
- 27146, 27146, 27146, 27146,
- -21746, -21746, -21746, -21746,
- -19195, -19195, -19195, -19195,
- 23170, 23170, 23170, 23170 };
- #define tg_1_16 (TABLEF + 0)
- #define tg_2_16 (TABLEF + 8)
- #define tg_3_16 (TABLEF + 16)
- #define cos_4_16 (TABLEF + 24)
- #define ocos_4_16 (TABLEF + 32)
- static const short tab_frw_01234567[] = {
- 16384, 16384, 21407, -8867,
- 16384, 16384, 8867, -21407,
- 16384, -16384, 8867, 21407,
- -16384, 16384, -21407, -8867,
- 22725, 12873, 19266, -22725,
- 19266, 4520, -4520, -12873,
- 12873, 4520, 4520, 19266,
- -22725, 19266, -12873, -22725,
- 22725, 22725, 29692, -12299,
- 22725, 22725, 12299, -29692,
- 22725, -22725, 12299, 29692,
- -22725, 22725, -29692, -12299,
- 31521, 17855, 26722, -31521,
- 26722, 6270, -6270, -17855,
- 17855, 6270, 6270, 26722,
- -31521, 26722, -17855, -31521,
- 21407, 21407, 27969, -11585,
- 21407, 21407, 11585, -27969,
- 21407, -21407, 11585, 27969,
- -21407, 21407, -27969, -11585,
- 29692, 16819, 25172, -29692,
- 25172, 5906, -5906, -16819,
- 16819, 5906, 5906, 25172,
- -29692, 25172, -16819, -29692,
- 19266, 19266, 25172, -10426,
- 19266, 19266, 10426, -25172,
- 19266, -19266, 10426, 25172,
- -19266, 19266, -25172, -10426,
- 26722, 15137, 22654, -26722,
- 22654, 5315, -5315, -15137,
- 15137, 5315, 5315, 22654,
- -26722, 22654, -15137, -26722,
- 16384, 16384, 21407, -8867,
- 16384, 16384, 8867, -21407,
- 16384, -16384, 8867, 21407,
- -16384, 16384, -21407, -8867,
- 22725, 12873, 19266, -22725,
- 19266, 4520, -4520, -12873,
- 12873, 4520, 4520, 19266,
- -22725, 19266, -12873, -22725,
- 19266, 19266, 25172, -10426,
- 19266, 19266, 10426, -25172,
- 19266, -19266, 10426, 25172,
- -19266, 19266, -25172, -10426,
- 26722, 15137, 22654, -26722,
- 22654, 5315, -5315, -15137,
- 15137, 5315, 5315, 22654,
- -26722, 22654, -15137, -26722,
- 21407, 21407, 27969, -11585,
- 21407, 21407, 11585, -27969,
- 21407, -21407, 11585, 27969,
- -21407, 21407, -27969, -11585,
- 29692, 16819, 25172, -29692,
- 25172, 5906, -5906, -16819,
- 16819, 5906, 5906, 25172,
- -29692, 25172, -16819, -29692,
- 22725, 22725, 29692, -12299,
- 22725, 22725, 12299, -29692,
- 22725, -22725, 12299, 29692,
- -22725, 22725, -29692, -12299,
- 31521, 17855, 26722, -31521,
- 26722, 6270, -6270, -17855,
- 17855, 6270, 6270, 26722,
- -31521, 26722, -17855, -31521
- };
- void
- fdct_mm32( short *blk )
- {
- static __int64 xt70[2];
- static int a0, a1, a2, a3, b0, b1, b2, b3;
- static short *sptr, *optr, *tf;
- static short *xt = (short *) &xt70[0];
- static int j;
- const static short _tg_1_16 = 13036;
- const static short _tg_2_16 = 27146;
- const static short _tg_3_16 =-21746;
- const static short _cos_4_16 =-19195;
- const static short _ocos_4_16 = 23170;
- const static short _one_corr = 1;
- static short t0, t1, t2, t3, t4, t5, t6, t7;
- static short tp03, tm03, tp12, tm12, tp65, tm65;
- static short tp465, tm465, tp765, tm765;
- __asm {
- mov INP, dword ptr [blk]; ;
- ;
- lea TABLEF, dword ptr [tg_all_16];
- mov OUT, INP;
- mmx32_fdct_col03:
- movq mm0, [x1] ; 0 ; x1
- ;
- movq mm1, [x6] ; 1 ; x6
- movq mm2, mm0 ; 2 ; x1
- movq mm3, [x2] ; 3 ; x2
- paddsw mm0, mm1 ; t1 = x[1] + x[6]
- movq mm4, [x5] ; 4 ; x5
- psllw mm0, SHIFT_FRW_COL ; t1
- movq mm5, [x0] ; 5 ; x0
- paddsw mm4, mm3 ; t2 = x[2] + x[5]
- paddsw mm5, [x7] ; t0 = x[0] + x[7]
- psllw mm4, SHIFT_FRW_COL ; t2
- movq mm6, mm0 ; 6 ; t1
- psubsw mm2, mm1 ; 1 ; t6 = x[1] - x[6]
- movq mm1, qword ptr [tg_2_16] ; 1 ; tg_2_16
- psubsw mm0, mm4 ; tm12 = t1 - t2
- movq mm7, [x3] ; 7 ; x3
- pmulhw mm1, mm0 ; tm12*tg_2_16
- paddsw mm7, [x4] ; t3 = x[3] + x[4]
- psllw mm5, SHIFT_FRW_COL ; t0
- paddsw mm6, mm4 ; 4 ; tp12 = t1 + t2
- psllw mm7, SHIFT_FRW_COL ; t3
- movq mm4, mm5 ; 4 ; t0
- psubsw mm5, mm7 ; tm03 = t0 - t3
- paddsw mm1, mm5 ; y2 = tm03 + tm12*tg_2_16
- paddsw mm4, mm7 ; 7 ; tp03 = t0 + t3
- por mm1, qword ptr one_corr ; correction y2 +0.5
- psllw mm2, SHIFT_FRW_COL+1 ; t6
- pmulhw mm5, qword ptr [tg_2_16] ; tm03*tg_2_16
- movq mm7, mm4 ; 7 ; tp03
- psubsw mm3, [x5] ; t5 = x[2] - x[5]
- psubsw mm4, mm6 ; y4 = tp03 - tp12
- movq [y2], mm1 ; 1 ; save y2
- paddsw mm7, mm6 ; 6 ; y0 = tp03 + tp12
- movq mm1, [x3] ; 1 ; x3
- psllw mm3, SHIFT_FRW_COL+1 ; t5
- psubsw mm1, [x4] ; t4 = x[3] - x[4]
- movq mm6, mm2 ; 6 ; t6
- movq [y4], mm4 ; 4 ; save y4
- paddsw mm2, mm3 ; t6 + t5
- pmulhw mm2, qword ptr [ocos_4_16] ; tp65 = (t6 + t5)*cos_4_16
- psubsw mm6, mm3 ; 3 ; t6 - t5
- pmulhw mm6, qword ptr [ocos_4_16] ; tm65 = (t6 - t5)*cos_4_16
- psubsw mm5, mm0 ; 0 ; y6 = tm03*tg_2_16 - tm12
- por mm5, qword ptr one_corr ; correction y6 +0.5
- psllw mm1, SHIFT_FRW_COL ; t4
- por mm2, qword ptr one_corr ; correction tp65 +0.5
- movq mm4, mm1 ; 4 ; t4
- movq mm3, [x0] ; 3 ; x0
- paddsw mm1, mm6 ; tp465 = t4 + tm65
- psubsw mm3, [x7] ; t7 = x[0] - x[7]
- psubsw mm4, mm6 ; 6 ; tm465 = t4 - tm65
- movq mm0, qword ptr [tg_1_16] ; 0 ; tg_1_16
- psllw mm3, SHIFT_FRW_COL ; t7
- movq mm6, qword ptr [tg_3_16] ; 6 ; tg_3_16
- pmulhw mm0, mm1 ; tp465*tg_1_16
- movq [y0], mm7 ; 7 ; save y0
- pmulhw mm6, mm4 ; tm465*tg_3_16
- movq [y6], mm5 ; 5 ; save y6
- movq mm7, mm3 ; 7 ; t7
- movq mm5, qword ptr [tg_3_16] ; 5 ; tg_3_16
- psubsw mm7, mm2 ; tm765 = t7 - tp65
- paddsw mm3, mm2 ; 2 ; tp765 = t7 + tp65
- pmulhw mm5, mm7 ; tm765*tg_3_16
- paddsw mm0, mm3 ; y1 = tp765 + tp465*tg_1_16
- paddsw mm6, mm4 ; tm465*tg_3_16
- pmulhw mm3, qword ptr [tg_1_16] ; tp765*tg_1_16
- ;
- por mm0, qword ptr one_corr ; correction y1 +0.5
- paddsw mm5, mm7 ; tm765*tg_3_16
- psubsw mm7, mm6 ; 6 ; y3 = tm765 - tm465*tg_3_16
- add INP, 0x08 ;
- movq [y1], mm0 ; 0 ; save y1
- paddsw mm5, mm4 ; 4 ; y5 = tm765*tg_3_16 + tm465
- movq [y3], mm7 ; 7 ; save y3
- psubsw mm3, mm1 ; 1 ; y7 = tp765*tg_1_16 - tp465
- movq [y5], mm5 ; 5 ; save y5
- mmx32_fdct_col47:
- movq mm0, [x1] ; 0 ; x1
- ;
- movq [y7], mm3 ; 3 ; save y7 (columns 0-4)
- ;
- movq mm1, [x6] ; 1 ; x6
- movq mm2, mm0 ; 2 ; x1
- movq mm3, [x2] ; 3 ; x2
- paddsw mm0, mm1 ; t1 = x[1] + x[6]
- movq mm4, [x5] ; 4 ; x5
- psllw mm0, SHIFT_FRW_COL ; t1
- movq mm5, [x0] ; 5 ; x0
- paddsw mm4, mm3 ; t2 = x[2] + x[5]
- paddsw mm5, [x7] ; t0 = x[0] + x[7]
- psllw mm4, SHIFT_FRW_COL ; t2
- movq mm6, mm0 ; 6 ; t1
- psubsw mm2, mm1 ; 1 ; t6 = x[1] - x[6]
- movq mm1, qword ptr [tg_2_16] ; 1 ; tg_2_16
- psubsw mm0, mm4 ; tm12 = t1 - t2
- movq mm7, [x3] ; 7 ; x3
- pmulhw mm1, mm0 ; tm12*tg_2_16
- paddsw mm7, [x4] ; t3 = x[3] + x[4]
- psllw mm5, SHIFT_FRW_COL ; t0
- paddsw mm6, mm4 ; 4 ; tp12 = t1 + t2
- psllw mm7, SHIFT_FRW_COL ; t3
- movq mm4, mm5 ; 4 ; t0
- psubsw mm5, mm7 ; tm03 = t0 - t3
- paddsw mm1, mm5 ; y2 = tm03 + tm12*tg_2_16
- paddsw mm4, mm7 ; 7 ; tp03 = t0 + t3
- por mm1, qword ptr one_corr ; correction y2 +0.5
- psllw mm2, SHIFT_FRW_COL+1 ; t6
- pmulhw mm5, qword ptr [tg_2_16] ; tm03*tg_2_16
- movq mm7, mm4 ; 7 ; tp03
- psubsw mm3, [x5] ; t5 = x[2] - x[5]
- psubsw mm4, mm6 ; y4 = tp03 - tp12
- movq [y2+8], mm1 ; 1 ; save y2
- paddsw mm7, mm6 ; 6 ; y0 = tp03 + tp12
- movq mm1, [x3] ; 1 ; x3
- psllw mm3, SHIFT_FRW_COL+1 ; t5
- psubsw mm1, [x4] ; t4 = x[3] - x[4]
- movq mm6, mm2 ; 6 ; t6
- movq [y4+8], mm4 ; 4 ; save y4
- paddsw mm2, mm3 ; t6 + t5
- pmulhw mm2, qword ptr [ocos_4_16] ; tp65 = (t6 + t5)*cos_4_16
- psubsw mm6, mm3 ; 3 ; t6 - t5
- pmulhw mm6, qword ptr [ocos_4_16] ; tm65 = (t6 - t5)*cos_4_16
- psubsw mm5, mm0 ; 0 ; y6 = tm03*tg_2_16 - tm12
- por mm5, qword ptr one_corr ; correction y6 +0.5
- psllw mm1, SHIFT_FRW_COL ; t4
- por mm2, qword ptr one_corr ; correction tp65 +0.5
- movq mm4, mm1 ; 4 ; t4
- movq mm3, [x0] ; 3 ; x0
- paddsw mm1, mm6 ; tp465 = t4 + tm65
- psubsw mm3, [x7] ; t7 = x[0] - x[7]
- psubsw mm4, mm6 ; 6 ; tm465 = t4 - tm65
- movq mm0, qword ptr [tg_1_16] ; 0 ; tg_1_16
- psllw mm3, SHIFT_FRW_COL ; t7
- movq mm6, qword ptr [tg_3_16] ; 6 ; tg_3_16
- pmulhw mm0, mm1 ; tp465*tg_1_16
- movq [y0+8], mm7 ; 7 ; save y0
- pmulhw mm6, mm4 ; tm465*tg_3_16
- movq [y6+8], mm5 ; 5 ; save y6
- movq mm7, mm3 ; 7 ; t7
- movq mm5, qword ptr [tg_3_16] ; 5 ; tg_3_16
- psubsw mm7, mm2 ; tm765 = t7 - tp65
- paddsw mm3, mm2 ; 2 ; tp765 = t7 + tp65
- pmulhw mm5, mm7 ; tm765*tg_3_16
- paddsw mm0, mm3 ; y1 = tp765 + tp465*tg_1_16
- paddsw mm6, mm4 ; tm465*tg_3_16
- pmulhw mm3, qword ptr [tg_1_16] ; tp765*tg_1_16
- ;
- por mm0, qword ptr one_corr ; correction y1 +0.5
- paddsw mm5, mm7 ; tm765*tg_3_16
- psubsw mm7, mm6 ; 6 ; y3 = tm765 - tm465*tg_3_16
- ;
- movq [y1+8], mm0 ; 0 ; save y1
- paddsw mm5, mm4 ; 4 ; y5 = tm765*tg_3_16 + tm465
- movq [y3+8], mm7 ; 7 ; save y3
- psubsw mm3, mm1 ; 1 ; y7 = tp765*tg_1_16 - tp465
- movq [y5+8], mm5 ; 5 ; save y5
- movq [y7+8], mm3 ; 3 ; save y7
- mov INP, dword ptr [blk]; ;
- mov edi, 0x08;
- lea TABLE, dword ptr [tab_frw_01234567];
- mov OUT, INP;
- lea round_frw_row, dword ptr [r_frw_row];
- lp_mmx_fdct_row1:
- movd mm5, dword ptr [INP+12];
- punpcklwd mm5, dword ptr [INP+8]
- movq mm2, mm5;
- psrlq mm5, 32;
- movq mm0, qword ptr [INP];
- punpcklwd mm5, mm2;
- movq mm1, mm0;
- paddsw mm0, mm5;
- psubsw mm1, mm5;
- movq mm2, mm0;
- punpcklwd mm0, mm1;
- punpckhwd mm2, mm1;
- movq mm1, mm2;
- ;
- movq mm2, mm0 ; 2 ; x3 x2 x1 x0
- movq mm3, qword ptr [TABLE] ; 3 ; w06 w04 w02 w00
- punpcklwd mm0, mm1 ; x5 x1 x4 x0
- movq mm5, mm0 ; 5 ; x5 x1 x4 x0
- punpckldq mm0, mm0 ; x4 x0 x4 x0 [ xt2 xt0 xt2 xt0 ]
- movq mm4, qword ptr [TABLE+8] ; 4 ; w07 w05 w03 w01
- punpckhwd mm2, mm1 ; 1 ; x7 x3 x6 x2
- pmaddwd mm3, mm0 ; x4*w06+x0*w04 x4*w02+x0*w00
- movq mm6, mm2 ; 6 ; x7 x3 x6 x2
- movq mm1, qword ptr [TABLE+32] ; 1 ; w22 w20 w18 w16
- punpckldq mm2, mm2 ; x6 x2 x6 x2 [ xt3 xt1 xt3 xt1 ]
- pmaddwd mm4, mm2 ; x6*w07+x2*w05 x6*w03+x2*w01
- punpckhdq mm5, mm5 ; x5 x1 x5 x1 [ xt6 xt4 xt6 xt4 ]
- pmaddwd mm0, qword ptr [TABLE+16] ; x4*w14+x0*w12 x4*w10+x0*w08
- punpckhdq mm6, mm6 ; x7 x3 x7 x3 [ xt7 xt5 xt7 xt5 ]
- movq mm7, qword ptr [TABLE+40] ; 7 ; w23 w21 w19 w17
- pmaddwd mm1, mm5 ; x5*w22+x1*w20 x5*w18+x1*w16
- paddd mm3, qword ptr [round_frw_row] ; +rounder (y2,y0)
- pmaddwd mm7, mm6 ; x7*w23+x3*w21 x7*w19+x3*w17
- pmaddwd mm2, qword ptr [TABLE+24] ; x6*w15+x2*w13 x6*w11+x2*w09
- paddd mm3, mm4 ; 4 ; a1=sum(even1) a0=sum(even0)
- pmaddwd mm5, qword ptr [TABLE+48] ; x5*w30+x1*w28 x5*w26+x1*w24
- ;
- pmaddwd mm6, qword ptr [TABLE+56] ; x7*w31+x3*w29 x7*w27+x3*w25
- paddd mm1, mm7 ; 7 ; b1=sum(odd1) b0=sum(odd0)
- paddd mm0, qword ptr [round_frw_row] ; +rounder (y6,y4)
- psrad mm3, SHIFT_FRW_ROW_CLIP1 ;
- paddd mm1, qword ptr [round_frw_row] ; +rounder (y3,y1)
- paddd mm0, mm2 ; 2 ; a3=sum(even3) a2=sum(even2)
- paddd mm5, qword ptr [round_frw_row] ; +rounder (y7,y5)
- psrad mm1, SHIFT_FRW_ROW_CLIP1 ;
- paddd mm5, mm6 ; 6 ; b3=sum(odd3) b2=sum(odd2)
- psrad mm0, SHIFT_FRW_ROW_CLIP1 ;
- add OUT, 16;
- psrad mm5, SHIFT_FRW_ROW_CLIP1;
- add INP, 16;
- packssdw mm3, mm0 ;
- packssdw mm1, mm5 ;
- movq mm6, mm3;
- punpcklwd mm3, mm1;
- sub edi, 0x01;
- punpckhwd mm6, mm1;
- add TABLE,64;
- psraw mm3, SHIFT_FRW_ROW_CLIP2;
- psraw mm6, SHIFT_FRW_ROW_CLIP2;
- movq qword ptr [OUT-16], mm3 ; 1 ; save y3 y2 y1 y0
- movq qword ptr [OUT-8], mm6 ; 7 ; save y7 y6 y5 y4
- cmp edi, 0x00;
- jg lp_mmx_fdct_row1;
- emms;
- }
- }