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reorder table instead of wasting instructions to reorder the input to match the table

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Originally committed as revision 2436 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Michael Niedermayer 22 years ago
parent 94789b9e59
commit 6e0593e80b
1 changed files with 107 additions and 123 deletions
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  1. 228
      libavcodec/i386/fdct_mmx.c

228
libavcodec/i386/fdct_mmx.c
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@ -49,85 +49,77 @@ static const long long fdct_one_corr ATTR_ALIGN(8) = 0x0001000100010001LL;
static const long fdct_r_row[2] ATTR_ALIGN(8) = {RND_FRW_ROW, RND_FRW_ROW };
static const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { // forward_dct coeff table
//row0
16384, 16384, 21407, -8867, // w09 w01 w08 w00
16384, 16384, 8867, -21407, // w13 w05 w12 w04
16384, -16384, 8867, 21407, // w11 w03 w10 w02
-16384, 16384, -21407, -8867, // w15 w07 w14 w06
22725, 12873, 19266, -22725, // w22 w20 w18 w16
19266, 4520, -4520, -12873, // w23 w21 w19 w17
12873, 4520, 4520, 19266, // w30 w28 w26 w24
-22725, 19266, -12873, -22725, // w31 w29 w27 w25
16384, 16384, -8867, -21407,
16384, 16384, 21407, 8867,
16384, -16384, 21407, -8867,
-16384, 16384, 8867, -21407,
22725, 19266, -22725, -12873,
12873, 4520, 19266, -4520,
12873, -22725, 19266, -22725,
4520, 19266, 4520, -12873,
//row1
22725, 22725, 29692, -12299, // w09 w01 w08 w00
22725, 22725, 12299, -29692, // w13 w05 w12 w04
22725, -22725, 12299, 29692, // w11 w03 w10 w02
-22725, 22725, -29692, -12299, // w15 w07 w14 w06
31521, 17855, 26722, -31521, // w22 w20 w18 w16
26722, 6270, -6270, -17855, // w23 w21 w19 w17
17855, 6270, 6270, 26722, // w30 w28 w26 w24
-31521, 26722, -17855, -31521, // w31 w29 w27 w25
22725, 22725, -12299, -29692,
22725, 22725, 29692, 12299,
22725, -22725, 29692, -12299,
-22725, 22725, 12299, -29692,
31521, 26722, -31521, -17855,
17855, 6270, 26722, -6270,
17855, -31521, 26722, -31521,
6270, 26722, 6270, -17855,
//row2
21407, 21407, 27969, -11585, // w09 w01 w08 w00
21407, 21407, 11585, -27969, // w13 w05 w12 w04
21407, -21407, 11585, 27969, // w11 w03 w10 w02
-21407, 21407, -27969, -11585, // w15 w07 w14 w06
29692, 16819, 25172, -29692, // w22 w20 w18 w16
25172, 5906, -5906, -16819, // w23 w21 w19 w17
16819, 5906, 5906, 25172, // w30 w28 w26 w24
-29692, 25172, -16819, -29692, // w31 w29 w27 w25
21407, 21407, -11585, -27969,
21407, 21407, 27969, 11585,
21407, -21407, 27969, -11585,
-21407, 21407, 11585, -27969,
29692, 25172, -29692, -16819,
16819, 5906, 25172, -5906,
16819, -29692, 25172, -29692,
5906, 25172, 5906, -16819,
//row3
19266, 19266, 25172, -10426, // w09 w01 w08 w00
19266, 19266, 10426, -25172, // w13 w05 w12 w04
19266, -19266, 10426, 25172, // w11 w03 w10 w02
-19266, 19266, -25172, -10426, // w15 w07 w14 w06,
26722, 15137, 22654, -26722, // w22 w20 w18 w16
22654, 5315, -5315, -15137, // w23 w21 w19 w17
15137, 5315, 5315, 22654, // w30 w28 w26 w24
-26722, 22654, -15137, -26722, // w31 w29 w27 w25,
19266, 19266, -10426, -25172,
19266, 19266, 25172, 10426,
19266, -19266, 25172, -10426,
-19266, 19266, 10426, -25172,
26722, 22654, -26722, -15137,
15137, 5315, 22654, -5315,
15137, -26722, 22654, -26722,
5315, 22654, 5315, -15137,
//row4
16384, 16384, 21407, -8867, // w09 w01 w08 w00
16384, 16384, 8867, -21407, // w13 w05 w12 w04
16384, -16384, 8867, 21407, // w11 w03 w10 w02
-16384, 16384, -21407, -8867, // w15 w07 w14 w06
22725, 12873, 19266, -22725, // w22 w20 w18 w16
19266, 4520, -4520, -12873, // w23 w21 w19 w17
12873, 4520, 4520, 19266, // w30 w28 w26 w24
-22725, 19266, -12873, -22725, // w31 w29 w27 w25
16384, 16384, -8867, -21407,
16384, 16384, 21407, 8867,
16384, -16384, 21407, -8867,
-16384, 16384, 8867, -21407,
22725, 19266, -22725, -12873,
12873, 4520, 19266, -4520,
12873, -22725, 19266, -22725,
4520, 19266, 4520, -12873,
//row5
19266, 19266, 25172, -10426, // w09 w01 w08 w00
19266, 19266, 10426, -25172, // w13 w05 w12 w04
19266, -19266, 10426, 25172, // w11 w03 w10 w02
-19266, 19266, -25172, -10426, // w15 w07 w14 w06
26722, 15137, 22654, -26722, // w22 w20 w18 w16
22654, 5315, -5315, -15137, // w23 w21 w19 w17
15137, 5315, 5315, 22654, // w30 w28 w26 w24
-26722, 22654, -15137, -26722, // w31 w29 w27 w25
19266, 19266, -10426, -25172,
19266, 19266, 25172, 10426,
19266, -19266, 25172, -10426,
-19266, 19266, 10426, -25172,
26722, 22654, -26722, -15137,
15137, 5315, 22654, -5315,
15137, -26722, 22654, -26722,
5315, 22654, 5315, -15137,
//row6
21407, 21407, 27969, -11585, // w09 w01 w08 w00
21407, 21407, 11585, -27969, // w13 w05 w12 w04
21407, -21407, 11585, 27969, // w11 w03 w10 w02
-21407, 21407, -27969, -11585, // w15 w07 w14 w06,
29692, 16819, 25172, -29692, // w22 w20 w18 w16
25172, 5906, -5906, -16819, // w23 w21 w19 w17
16819, 5906, 5906, 25172, // w30 w28 w26 w24
-29692, 25172, -16819, -29692, // w31 w29 w27 w25,
21407, 21407, -11585, -27969,
21407, 21407, 27969, 11585,
21407, -21407, 27969, -11585,
-21407, 21407, 11585, -27969,
29692, 25172, -29692, -16819,
16819, 5906, 25172, -5906,
16819, -29692, 25172, -29692,
5906, 25172, 5906, -16819,
//row7
22725, 22725, 29692, -12299, // w09 w01 w08 w00
22725, 22725, 12299, -29692, // w13 w05 w12 w04
22725, -22725, 12299, 29692, // w11 w03 w10 w02
-22725, 22725, -29692, -12299, // w15 w07 w14 w06,
31521, 17855, 26722, -31521, // w22 w20 w18 w16
26722, 6270, -6270, -17855, // w23 w21 w19 w17
17855, 6270, 6270, 26722, // w30 w28 w26 w24
-31521, 26722, -17855, -31521 // w31 w29 w27 w25
22725, 22725, -12299, -29692,
22725, 22725, 29692, 12299,
22725, -22725, 29692, -12299,
-22725, 22725, 12299, -29692,
31521, 26722, -31521, -17855,
17855, 6270, 26722, -6270,
17855, -31521, 26722, -31521,
6270, 26722, 6270, -17855,
};
@ -217,73 +209,65 @@ static always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const i
movq_r2r(mm0, mm1);
paddsw_r2r(mm5, mm0);
psubsw_r2r(mm5, mm1);
pshufw_r2r(mm1, mm5, 0x88);
pshufw_r2r(mm1, mm6, 0xDD);
pshufw_r2r(mm0, mm1, 0xDD);
pshufw_r2r(mm0, mm0, 0x88);
movq_m2r(*(table + 0), mm3);
movq_m2r(*(table + 4), mm4);
movq_m2r(*(table + 16), mm2);
pshufw_r2r(mm0, mm2, 0x4E);
pshufw_r2r(mm1, mm3, 0x4E);
movq_m2r(*(table + 0), mm4);
movq_m2r(*(table + 4), mm6);
movq_m2r(*(table + 16), mm5);
movq_m2r(*(table + 20), mm7);
pmaddwd_r2r(mm0, mm3);
pmaddwd_r2r(mm1, mm4);
pmaddwd_r2r(mm5, mm2);
pmaddwd_r2r(mm6, mm7);
pmaddwd_r2r(mm0, mm4);
pmaddwd_r2r(mm1, mm5);
pmaddwd_r2r(mm2, mm6);
pmaddwd_r2r(mm3, mm7);
pmaddwd_m2r(*(table + 8), mm0);
pmaddwd_m2r(*(table + 12), mm1);
pmaddwd_m2r(*(table + 24), mm5);
pmaddwd_m2r(*(table + 28), mm6);
paddd_r2r(mm4, mm3);
paddd_r2r(mm7, mm2);
paddd_r2r(mm1, mm0);
paddd_r2r(mm6, mm5);
pmaddwd_m2r(*(table + 12), mm2);
pmaddwd_m2r(*(table + 24), mm1);
pmaddwd_m2r(*(table + 28), mm3);
paddd_r2r(mm6, mm4);
paddd_r2r(mm7, mm5);
paddd_r2r(mm2, mm0);
paddd_r2r(mm3, mm1);
movq_m2r(*fdct_r_row, mm7);
paddd_r2r(mm7, mm3);
paddd_r2r(mm7, mm0);
paddd_r2r(mm7, mm2);
paddd_r2r(mm7, mm4);
paddd_r2r(mm7, mm5);
psrad_i2r(SHIFT_FRW_ROW, mm3);
psrad_i2r(SHIFT_FRW_ROW, mm2);
psrad_i2r(SHIFT_FRW_ROW, mm0);
paddd_r2r(mm7, mm0);
paddd_r2r(mm7, mm1);
psrad_i2r(SHIFT_FRW_ROW, mm4);
psrad_i2r(SHIFT_FRW_ROW, mm5);
packssdw_r2r(mm0, mm3);
packssdw_r2r(mm5, mm2);
movq_r2r(mm3, mm6);
punpcklwd_r2r(mm2, mm3);
punpckhwd_r2r(mm2, mm6);
movq_r2m(mm3, *(out + 0));
movq_r2m(mm6, *(out + 4));
psrad_i2r(SHIFT_FRW_ROW, mm0);
psrad_i2r(SHIFT_FRW_ROW, mm1);
packssdw_r2r(mm0, mm4);
packssdw_r2r(mm1, mm5);
movq_r2r(mm4, mm2);
punpcklwd_r2r(mm5, mm4);
punpckhwd_r2r(mm5, mm2);
movq_r2m(mm4, *(out + 0));
movq_r2m(mm2, *(out + 4));
}
static always_inline void fdct_row_mmx(const int16_t *in, int16_t *out, const int16_t *table)
{
movd_m2r(*(in + 6), mm5);
punpcklwd_m2r(*(in + 4), mm5);
movq_r2r(mm5, mm2);
psrlq_i2r(0x20, mm5);
movd_m2r(*(in + 6), mm1);
punpcklwd_m2r(*(in + 4), mm1);
movq_r2r(mm1, mm2);
psrlq_i2r(0x20, mm1);
movq_m2r(*(in + 0), mm0);
punpcklwd_r2r(mm2, mm5);
movq_r2r(mm0, mm1);
paddsw_r2r(mm5, mm0);
psubsw_r2r(mm5, mm1);
movq_r2r(mm0, mm2);
punpcklwd_r2r(mm1, mm0);
punpckhwd_r2r(mm1, mm2);
punpcklwd_r2r(mm2, mm1);
movq_r2r(mm0, mm5);
paddsw_r2r(mm1, mm0);
psubsw_r2r(mm1, mm5);
movq_r2r(mm0, mm1);
movq_r2r(mm5, mm6);
punpckldq_r2r(mm5, mm3);
punpckhdq_r2r(mm3, mm6);
movq_m2r(*(table + 0), mm3);
punpcklwd_r2r(mm2, mm0);
movq_r2r(mm0, mm5);
punpckldq_r2r(mm0, mm0);
movq_m2r(*(table + 4), mm4);
punpckhwd_r2r(mm2, mm1);
punpckldq_r2r(mm0, mm2);
pmaddwd_r2r(mm0, mm3);
movq_r2r(mm1, mm6);
punpckhdq_r2r(mm2, mm1);
movq_m2r(*(table + 16), mm2);
punpckldq_r2r(mm1, mm1);
pmaddwd_r2r(mm1, mm4);
punpckhdq_r2r(mm5, mm5);
pmaddwd_m2r(*(table + 8), mm0);
punpckhdq_r2r(mm6, mm6);
movq_m2r(*(table + 20), mm7);
pmaddwd_r2r(mm5, mm2);
paddd_m2r(*fdct_r_row, mm3);

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