text_idct_mmx.c
上传用户:tuheem
上传日期:2007-05-01
资源大小:21889k
文件大小:12k
- #define DEFAULT_FUNCTION_NAME Fast_IDCT
- #ifndef MMX_IDCT_NAME
- #define MMX_IDCT_NAME DEFAULT_FUNCTION_NAME
- #endif
- #define int16_t short
- #define int32_t int
- #define uint64_t unsigned __int64
- #define MPTR qword ptr
- #define SHORT4_TO_QWORD(A, B, C, D) (
- ( ( ((uint64_t)(A)) & ((uint64_t)(0xffff)) ) << 0 ) |
- ( ( ((uint64_t)(B)) & ((uint64_t)(0xffff)) ) << 16 ) |
- ( ( ((uint64_t)(C)) & ((uint64_t)(0xffff)) ) << 32 ) |
- ( ( ((uint64_t)(D)) & ((uint64_t)(0xffff)) ) << 48 ) )
- #define INT2_TO_QWORD(A, B) (
- ( ( ((uint64_t)(A)) & ((uint64_t)(0xffffffff)) ) << 0 ) |
- ( ( ((uint64_t)(B)) & ((uint64_t)(0xffffffff)) ) << 32 ) )
- #define BITS_INV_ACC 5
- #define SHIFT_INV_ROW (16 - BITS_INV_ACC)
- #define SHIFT_INV_COL (1 + BITS_INV_ACC)
- #define RND_INV_ROW (1024 * (6 - BITS_INV_ACC))
- #define RND_INV_COL (16 * (BITS_INV_ACC - 3))
- #define RND_INV_CORR (RND_INV_COL - 1)
- #define BITS_FRW_ACC 3
- #define SHIFT_FRW_COL BITS_FRW_ACC
- #define SHIFT_FRW_ROW (BITS_FRW_ACC + 17)
- #define RND_FRW_ROW (262144 * (BITS_FRW_ACC - 1))
- static const uint64_t tg_1_16 = SHORT4_TO_QWORD( 13036, 13036, 13036, 13036 );
- static const uint64_t tg_2_16 = SHORT4_TO_QWORD( 27146, 27146, 27146, 27146 );
- static const uint64_t tg_3_16 = SHORT4_TO_QWORD(-21746, -21746, -21746, -21746 );
- static const uint64_t ocos_4_16 = SHORT4_TO_QWORD( 23170, 23170, 23170, 23170 );
- #if SHIFT_INV_ROW == 12
- static const uint64_t rounder[8] = {
- INT2_TO_QWORD( 65536, 65536),
- INT2_TO_QWORD( 7195, 7195),
- INT2_TO_QWORD( 4520, 4520),
- INT2_TO_QWORD( 2407, 2407),
- INT2_TO_QWORD( 0, 0),
- INT2_TO_QWORD( 240, 240),
- INT2_TO_QWORD( 1024, 1024),
- INT2_TO_QWORD( 1024, 1024)
- };
- #elif SHIFT_INV_ROW == 11
- static const uint64_t rounder[2*8] = {
- INT2_TO_QWORD( 65536, 65536),
- INT2_TO_QWORD( 3597, 3597),
- INT2_TO_QWORD( 2260, 2260),
- INT2_TO_QWORD( 1203, 1203),
- INT2_TO_QWORD( 0, 0),
- INT2_TO_QWORD( 120, 120),
- INT2_TO_QWORD( 512, 512),
- INT2_TO_QWORD( 512, 512)
- };
- #endif
- static const uint64_t tab_i_04[8*8] = {
- SHORT4_TO_QWORD( 16384, 16384, 16384, -16384 ),
- SHORT4_TO_QWORD( 21407, 8867, 8867, -21407 ),
- SHORT4_TO_QWORD( 16384, -16384, 16384, 16384 ),
- SHORT4_TO_QWORD( -8867, 21407, -21407, -8867 ),
- SHORT4_TO_QWORD( 22725, 12873, 19266, -22725 ),
- SHORT4_TO_QWORD( 19266, 4520, -4520, -12873 ),
- SHORT4_TO_QWORD( 12873, 4520, 4520, 19266 ),
- SHORT4_TO_QWORD(-22725, 19266, -12873, -22725 ),
- SHORT4_TO_QWORD( 22725, 22725, 22725, -22725 ),
- SHORT4_TO_QWORD( 29692, 12299, 12299, -29692 ),
- SHORT4_TO_QWORD( 22725, -22725, 22725, 22725 ),
- SHORT4_TO_QWORD(-12299, 29692, -29692, -12299 ),
- SHORT4_TO_QWORD( 31521, 17855, 26722, -31521 ),
- SHORT4_TO_QWORD( 26722, 6270, -6270, -17855 ),
- SHORT4_TO_QWORD( 17855, 6270, 6270, 26722 ),
- SHORT4_TO_QWORD(-31521, 26722, -17855, -31521 ),
- SHORT4_TO_QWORD( 21407, 21407, 21407, -21407 ),
- SHORT4_TO_QWORD( 27969, 11585, 11585, -27969 ),
- SHORT4_TO_QWORD( 21407, -21407, 21407, 21407 ),
- SHORT4_TO_QWORD(-11585, 27969, -27969, -11585 ),
- SHORT4_TO_QWORD( 29692, 16819, 25172, -29692 ),
- SHORT4_TO_QWORD( 25172, 5906, -5906, -16819 ),
- SHORT4_TO_QWORD( 16819, 5906, 5906, 25172 ),
- SHORT4_TO_QWORD(-29692, 25172, -16819, -29692 ),
- SHORT4_TO_QWORD( 19266, 19266, 19266, -19266 ),
- SHORT4_TO_QWORD( 25172, 10426, 10426, -25172 ),
- SHORT4_TO_QWORD( 19266, -19266, 19266, 19266 ),
- SHORT4_TO_QWORD(-10426, 25172, -25172, -10426 ),
- SHORT4_TO_QWORD( 26722, 15137, 22654, -26722 ),
- SHORT4_TO_QWORD( 22654, 5315, -5315, -15137 ),
- SHORT4_TO_QWORD( 15137, 5315, 5315, 22654 ),
- SHORT4_TO_QWORD(-26722, 22654, -15137, -26722 ),
- SHORT4_TO_QWORD( 16384, 16384, 16384, -16384 ),
- SHORT4_TO_QWORD( 21407, 8867, 8867, -21407 ),
- SHORT4_TO_QWORD( 16384, -16384, 16384, 16384 ),
- SHORT4_TO_QWORD(-8867, 21407, -21407, -8867 ),
- SHORT4_TO_QWORD( 22725, 12873, 19266, -22725 ),
- SHORT4_TO_QWORD( 19266, 4520, -4520, -12873 ),
- SHORT4_TO_QWORD( 12873, 4520, 4520, 19266 ),
- SHORT4_TO_QWORD(-22725, 19266, -12873, -22725 ),
- SHORT4_TO_QWORD( 19266, 19266, 19266, -19266 ),
- SHORT4_TO_QWORD( 25172, 10426, 10426, -25172 ),
- SHORT4_TO_QWORD( 19266, -19266, 19266, 19266 ),
- SHORT4_TO_QWORD(-10426, 25172, -25172, -10426 ),
- SHORT4_TO_QWORD( 26722, 15137, 22654, -26722 ),
- SHORT4_TO_QWORD( 22654, 5315, -5315, -15137 ),
- SHORT4_TO_QWORD( 15137, 5315, 5315, 22654 ),
- SHORT4_TO_QWORD(-26722, 22654, -15137, -26722 ),
- SHORT4_TO_QWORD( 21407, 21407, 21407, -21407 ),
- SHORT4_TO_QWORD( 27969, 11585, 11585, -27969 ),
- SHORT4_TO_QWORD( 21407, -21407, 21407, 21407 ),
- SHORT4_TO_QWORD(-11585, 27969, -27969, -11585 ),
- SHORT4_TO_QWORD( 29692, 16819, 25172, -29692 ),
- SHORT4_TO_QWORD( 25172, 5906, -5906, -16819 ),
- SHORT4_TO_QWORD( 16819, 5906, 5906, 25172 ),
- SHORT4_TO_QWORD(-29692, 25172, -16819, -29692 ),
- SHORT4_TO_QWORD( 22725, 22725, 22725, -22725 ),
- SHORT4_TO_QWORD( 29692, 12299, 12299, -29692 ),
- SHORT4_TO_QWORD( 22725, -22725, 22725, 22725 ),
- SHORT4_TO_QWORD(-12299, 29692, -29692, -12299 ),
- SHORT4_TO_QWORD( 31521, 17855, 26722, -31521 ),
- SHORT4_TO_QWORD( 26722, 6270, -6270, -17855 ),
- SHORT4_TO_QWORD( 17855, 6270, 6270, 26722 ),
- SHORT4_TO_QWORD(-31521, 26722, -17855, -31521 ),
- };
- uint64_t tempMatrix[64/4];
-
- #define INP eax
- #define ROUNDER ebx
- #define TABLE ecx
- #define OUTP edx
-
- void MMX_IDCT_NAME
- (int16_t *block) {
- __asm {
- push eax
- push ebx
- push ecx
- push edx
- push edi
- mov INP, block
- lea OUTP, [tempMatrix]
- lea TABLE, [tab_i_04]
- lea ROUNDER, [rounder]
- mov edi, -8; ; i=-8
- align 16
- rowloop:
- movq mm0, MPTR [INP] ; 0 ; x3 x2 x1 x0
- movq mm1, MPTR [INP+8] ; 1 ; x7 x6 x5 x4
- movq mm2, mm0 ; 2 ; x3 x2 x1 x0
- movq mm3, MPTR [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
- movq mm4, MPTR [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, MPTR [TABLE+32] ; 1 ; w22 w20 w18 w16
- punpckldq mm2, mm2 ; x6 x2 x6 x2
- pmaddwd mm4, mm2 ; x6*w07+x2*w05 x6*w03+x2*w01
- punpckhdq mm5, mm5 ; x5 x1 x5 x1
- pmaddwd mm0, MPTR [TABLE+16] ; x4*w14+x0*w12 x4*w10+x0*w08
- punpckhdq mm6, mm6 ; x7 x3 x7 x3
- movq mm7, MPTR [TABLE+40] ; 7 ; w23 w21 w19 w17
- pmaddwd mm1, mm5 ; x5*w22+x1*w20 x5*w18+x1*w16
- paddd mm3, MPTR [ROUNDER] ; +rounder
- pmaddwd mm7, mm6 ; x7*w23+x3*w21 x7*w19+x3*w17
- pmaddwd mm2, MPTR [TABLE+24] ; x6*w15+x2*w13 x6*w11+x2*w09
- paddd mm3, mm4 ; 4 ; a1=sum(even1) a0=sum(even0)
- pmaddwd mm5, MPTR [TABLE+48] ; x5*w30+x1*w28 x5*w26+x1*w24
- movq mm4, mm3 ; 4 ; a1 a0
- pmaddwd mm6, MPTR [TABLE+56] ; x7*w31+x3*w29 x7*w27+x3*w25
- paddd mm1, mm7 ; 7 ; b1=sum(odd1) b0=sum(odd0)
- paddd mm0, MPTR [ROUNDER] ; +rounder
- psubd mm3, mm1 ; a1-b1 a0-b0
- psrad mm3, SHIFT_INV_ROW ; y6=a1-b1 y7=a0-b0
- paddd mm1, mm4 ; 4 ; a1+b1 a0+b0
- paddd mm0, mm2 ; 2 ; a3=sum(even3) a2=sum(even2)
- psrad mm1, SHIFT_INV_ROW ; y1=a1+b1 y0=a0+b0
- paddd mm5, mm6 ; 6 ; b3=sum(odd3) b2=sum(odd2)
- movq mm4, mm0 ; 4 ; a3 a2
- paddd mm0, mm5 ; a3+b3 a2+b2
- psubd mm4, mm5 ; 5 ; a3-b3 a2-b2
- psrad mm0, SHIFT_INV_ROW ; y3=a3+b3 y2=a2+b2
- psrad mm4, SHIFT_INV_ROW ; y4=a3-b3 y5=a2-b2
- packssdw mm1, mm0 ; 0 ; y3 y2 y1 y0
- packssdw mm4, mm3 ; 3 ; y6 y7 y4 y5
- movq mm7, mm4 ; 7 ; y6 y7 y4 y5
- psrld mm4, 16 ; 0 y6 0 y4
- pslld mm7, 16 ; y7 0 y5 0
- movq MPTR [OUTP], mm1 ; 1 ; save y3 y2 y1 y0
-
- por mm7, mm4 ; 4 ; y7 y6 y5 y4
- movq MPTR [OUTP+8], mm7 ; 7 ; save y7 y6 y5 y4
- add INP, 16 ; add 1 row to input pointer
- add ROUNDER, 8 ; go to next rounding values
- add OUTP, 16 ; add 1 row to output pointer
- add TABLE,64 ; move to next section of table
-
- add edi, 1
- jne rowloop;
-
-
- lea INP, [tempMatrix]
- mov OUTP, block
- mov edi, -2; ; i=-2
- align 16
- colloop:
- movq mm0, tg_3_16
- movq mm3, MPTR [INP+16*3]
- movq mm1, mm0 ; tg_3_16
- movq mm5, MPTR [INP+16*5]
- pmulhw mm0, mm3 ; x3*(tg_3_16-1)
- movq mm4, tg_1_16
- pmulhw mm1, mm5 ; x5*(tg_3_16-1)
- movq mm7, MPTR [INP+16*7]
- movq mm2, mm4 ; tg_1_16
- movq mm6, MPTR [INP+16*1]
- pmulhw mm4, mm7 ; x7*tg_1_16
- paddsw mm0, mm3 ; x3*tg_3_16
- pmulhw mm2, mm6 ; x1*tg_1_16
- paddsw mm1, mm3 ; x3+x5*(tg_3_16-1)
- psubsw mm0, mm5 ; x3*tg_3_16-x5 = tm35
- movq mm3, ocos_4_16
- paddsw mm1, mm5 ; x3+x5*tg_3_16 = tp35
- paddsw mm4, mm6 ; x1+tg_1_16*x7 = tp17
- psubsw mm2, mm7 ; x1*tg_1_16-x7 = tm17
- movq mm5, mm4 ; tp17
- movq mm6, mm2 ; tm17
- paddsw mm5, mm1 ; tp17+tp35 = b0
- psubsw mm6, mm0 ; tm17-tm35 = b3
- psubsw mm4, mm1 ; tp17-tp35 = t1
- paddsw mm2, mm0 ; tm17+tm35 = t2
- movq mm7, tg_2_16
- movq mm1, mm4 ; t1
- ; movq MPTR [SCRATCH+0], mm5 ; save b0
- movq MPTR [OUTP+3*16], mm5 ; save b0
- paddsw mm1, mm2 ; t1+t2
- ; movq MPTR [SCRATCH+8], mm6 ; save b3
- movq MPTR [OUTP+5*16], mm6 ; save b3
- psubsw mm4, mm2 ; t1-t2
- movq mm5, MPTR [INP+2*16]
- movq mm0, mm7 ; tg_2_16
- movq mm6, MPTR [INP+6*16]
- pmulhw mm0, mm5 ; x2*tg_2_16
- pmulhw mm7, mm6 ; x6*tg_2_16
- ; slot
- pmulhw mm1, mm3 ; ocos_4_16*(t1+t2) = b1/2
- ; slot
- movq mm2, MPTR [INP+0*16]
- pmulhw mm4, mm3 ; ocos_4_16*(t1-t2) = b2/2
- psubsw mm0, mm6 ; t2*tg_2_16-x6 = tm26
- movq mm3, mm2 ; x0
- movq mm6, MPTR [INP+4*16]
- paddsw mm7, mm5 ; x2+x6*tg_2_16 = tp26
- paddsw mm2, mm6 ; x0+x4 = tp04
- psubsw mm3, mm6 ; x0-x4 = tm04
- movq mm5, mm2 ; tp04
- movq mm6, mm3 ; tm04
- psubsw mm2, mm7 ; tp04-tp26 = a3
- paddsw mm3, mm0 ; tm04+tm26 = a1
- paddsw mm1, mm1 ; b1
- paddsw mm4, mm4 ; b2
- paddsw mm5, mm7 ; tp04+tp26 = a0
- psubsw mm6, mm0 ; tm04-tm26 = a2
- movq mm7, mm3 ; a1
- movq mm0, mm6 ; a2
- paddsw mm3, mm1 ; a1+b1
- paddsw mm6, mm4 ; a2+b2
- psraw mm3, SHIFT_INV_COL ; dst1
- psubsw mm7, mm1 ; a1-b1
- psraw mm6, SHIFT_INV_COL ; dst2
- psubsw mm0, mm4 ; a2-b2
- ; movq mm1, MPTR [SCRATCH+0] ; load b0
- movq mm1, MPTR [OUTP+3*16] ; load b0
- psraw mm7, SHIFT_INV_COL ; dst6
- movq mm4, mm5 ; a0
- psraw mm0, SHIFT_INV_COL ; dst5
- movq MPTR [OUTP+1*16], mm3
- paddsw mm5, mm1 ; a0+b0
- movq MPTR [OUTP+2*16], mm6
- psubsw mm4, mm1 ; a0-b0
- ; movq mm3, MPTR [SCRATCH+8] ; load b3
- movq mm3, MPTR [OUTP+5*16] ; load b3
- psraw mm5, SHIFT_INV_COL ; dst0
- movq mm6, mm2 ; a3
- psraw mm4, SHIFT_INV_COL ; dst7
- movq MPTR [OUTP+5*16], mm0
- paddsw mm2, mm3 ; a3+b3
- movq MPTR [OUTP+6*16], mm7
- psubsw mm6, mm3 ; a3-b3
- movq MPTR [OUTP+0*16], mm5
- psraw mm2, SHIFT_INV_COL ; dst3
- movq MPTR [OUTP+7*16], mm4
- psraw mm6, SHIFT_INV_COL ; dst4
- movq MPTR [OUTP+3*16], mm2
- movq MPTR [OUTP+4*16], mm6
- lea INP, [tempMatrix]
- mov OUTP, block
- add INP, 8 ; add 4 cols to input pointer
- add OUTP, 8 ; add 4 cols to output pointer
-
- add edi, 1
- jne colloop
- pop edi
- pop edx
- pop ecx
- pop ebx
- pop eax
-
- emms
- };
-
- };