+++ /dev/null
-/*
- * MMX optimized forward DCT
- * The gcc porting is Copyright (c) 2001 Fabrice Bellard.
- *
- * from fdctam32.c - AP922 MMX(3D-Now) forward-DCT
- *
- * Intel Application Note AP-922 - fast, precise implementation of DCT
- * http://developer.intel.com/vtune/cbts/appnotes.htm
- */
-#include "../common.h"
-#include "mmx.h"
-
-#define ATTR_ALIGN(align) __attribute__ ((__aligned__ (align)))
-
-//////////////////////////////////////////////////////////////////////
-//
-// constants for the forward DCT
-// -----------------------------
-//
-// Be sure to check that your compiler is aligning all constants to QWORD
-// (8-byte) memory boundaries! Otherwise the unaligned memory access will
-// severely stall MMX execution.
-//
-//////////////////////////////////////////////////////////////////////
-
-#define BITS_FRW_ACC 3 //; 2 or 3 for accuracy
-#define SHIFT_FRW_COL BITS_FRW_ACC
-#define SHIFT_FRW_ROW (BITS_FRW_ACC + 17 - 3)
-//#define RND_FRW_ROW (262144 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_ROW-1)
-#define RND_FRW_ROW (1 << (SHIFT_FRW_ROW-1))
-//#define RND_FRW_COL (2 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_COL-1)
-#define RND_FRW_COL (1 << (SHIFT_FRW_COL-1))
-
-//concatenated table, for forward DCT transformation
-static const int16_t fdct_tg_all_16[] ATTR_ALIGN(8) = {
- 13036, 13036, 13036, 13036, // tg * (2<<16) + 0.5
- 27146, 27146, 27146, 27146, // tg * (2<<16) + 0.5
- -21746, -21746, -21746, -21746, // tg * (2<<16) + 0.5
-};
-static const int16_t cos_4_16[4] ATTR_ALIGN(8) = {
- -19195, -19195, -19195, -19195, //cos * (2<<16) + 0.5
-};
-
-static const int16_t ocos_4_16[4] ATTR_ALIGN(8) = {
- 23170, 23170, 23170, 23170, //cos * (2<<15) + 0.5
-};
-
-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
-
- //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
-
- //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
-
- //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,
-
- //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
-
- //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
-
- //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,
-
- //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
-};
-
-
-static inline void fdct_col(const int16_t *in, int16_t *out, int offset)
-{
- movq_m2r(*(in + offset + 1 * 8), mm0);
- movq_m2r(*(in + offset + 6 * 8), mm1);
- movq_r2r(mm0, mm2);
- movq_m2r(*(in + offset + 2 * 8), mm3);
- paddsw_r2r(mm1, mm0);
- movq_m2r(*(in + offset + 5 * 8), mm4);
- psllw_i2r(SHIFT_FRW_COL, mm0);
- movq_m2r(*(in + offset + 0 * 8), mm5);
- paddsw_r2r(mm3, mm4);
- paddsw_m2r(*(in + offset + 7 * 8), mm5);
- psllw_i2r(SHIFT_FRW_COL, mm4);
- movq_r2r(mm0, mm6);
- psubsw_r2r(mm1, mm2);
- movq_m2r(*(fdct_tg_all_16 + 4), mm1);
- psubsw_r2r(mm4, mm0);
- movq_m2r(*(in + offset + 3 * 8), mm7);
- pmulhw_r2r(mm0, mm1);
- paddsw_m2r(*(in + offset + 4 * 8), mm7);
- psllw_i2r(SHIFT_FRW_COL, mm5);
- paddsw_r2r(mm4, mm6);
- psllw_i2r(SHIFT_FRW_COL, mm7);
- movq_r2r(mm5, mm4);
- psubsw_r2r(mm7, mm5);
- paddsw_r2r(mm5, mm1);
- paddsw_r2r(mm7, mm4);
- por_m2r(fdct_one_corr, mm1);
- psllw_i2r(SHIFT_FRW_COL + 1, mm2);
- pmulhw_m2r(*(fdct_tg_all_16 + 4), mm5);
- movq_r2r(mm4, mm7);
- psubsw_m2r(*(in + offset + 5 * 8), mm3);
- psubsw_r2r(mm6, mm4);
- movq_r2m(mm1, *(out + offset + 2 * 8));
- paddsw_r2r(mm6, mm7);
- movq_m2r(*(in + offset + 3 * 8), mm1);
- psllw_i2r(SHIFT_FRW_COL + 1, mm3);
- psubsw_m2r(*(in + offset + 4 * 8), mm1);
- movq_r2r(mm2, mm6);
- movq_r2m(mm4, *(out + offset + 4 * 8));
- paddsw_r2r(mm3, mm2);
- pmulhw_m2r(*ocos_4_16, mm2);
- psubsw_r2r(mm3, mm6);
- pmulhw_m2r(*ocos_4_16, mm6);
- psubsw_r2r(mm0, mm5);
- por_m2r(fdct_one_corr, mm5);
- psllw_i2r(SHIFT_FRW_COL, mm1);
- por_m2r(fdct_one_corr, mm2);
- movq_r2r(mm1, mm4);
- movq_m2r(*(in + offset + 0 * 8), mm3);
- paddsw_r2r(mm6, mm1);
- psubsw_m2r(*(in + offset + 7 * 8), mm3);
- psubsw_r2r(mm6, mm4);
- movq_m2r(*(fdct_tg_all_16 + 0), mm0);
- psllw_i2r(SHIFT_FRW_COL, mm3);
- movq_m2r(*(fdct_tg_all_16 + 8), mm6);
- pmulhw_r2r(mm1, mm0);
- movq_r2m(mm7, *(out + offset + 0 * 8));
- pmulhw_r2r(mm4, mm6);
- movq_r2m(mm5, *(out + offset + 6 * 8));
- movq_r2r(mm3, mm7);
- movq_m2r(*(fdct_tg_all_16 + 8), mm5);
- psubsw_r2r(mm2, mm7);
- paddsw_r2r(mm2, mm3);
- pmulhw_r2r(mm7, mm5);
- paddsw_r2r(mm3, mm0);
- paddsw_r2r(mm4, mm6);
- pmulhw_m2r(*(fdct_tg_all_16 + 0), mm3);
- por_m2r(fdct_one_corr, mm0);
- paddsw_r2r(mm7, mm5);
- psubsw_r2r(mm6, mm7);
- movq_r2m(mm0, *(out + offset + 1 * 8));
- paddsw_r2r(mm4, mm5);
- movq_r2m(mm7, *(out + offset + 3 * 8));
- psubsw_r2r(mm1, mm3);
- movq_r2m(mm5, *(out + offset + 5 * 8));
- movq_r2m(mm3, *(out + offset + 7 * 8));
-}
-
-static inline void fdct_row(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);
- 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);
- movq_r2r(mm2, mm1);
- movq_r2r(mm0, mm2);
- movq_m2r(*(table + 0), mm3);
- punpcklwd_r2r(mm1, mm0);
- movq_r2r(mm0, mm5);
- punpckldq_r2r(mm0, mm0);
- movq_m2r(*(table + 4), mm4);
- punpckhwd_r2r(mm1, mm2);
- pmaddwd_r2r(mm0, mm3);
- movq_r2r(mm2, mm6);
- movq_m2r(*(table + 16), mm1);
- punpckldq_r2r(mm2, mm2);
- pmaddwd_r2r(mm2, mm4);
- punpckhdq_r2r(mm5, mm5);
- pmaddwd_m2r(*(table + 8), mm0);
- punpckhdq_r2r(mm6, mm6);
- movq_m2r(*(table + 20), mm7);
- pmaddwd_r2r(mm5, mm1);
- paddd_m2r(*fdct_r_row, mm3);
- pmaddwd_r2r(mm6, mm7);
- pmaddwd_m2r(*(table + 12), mm2);
- paddd_r2r(mm4, mm3);
- pmaddwd_m2r(*(table + 24), mm5);
- pmaddwd_m2r(*(table + 28), mm6);
- paddd_r2r(mm7, mm1);
- paddd_m2r(*fdct_r_row, mm0);
- psrad_i2r(SHIFT_FRW_ROW, mm3);
- paddd_m2r(*fdct_r_row, mm1);
- paddd_r2r(mm2, mm0);
- paddd_m2r(*fdct_r_row, mm5);
- psrad_i2r(SHIFT_FRW_ROW, mm1);
- paddd_r2r(mm6, mm5);
- psrad_i2r(SHIFT_FRW_ROW, mm0);
- psrad_i2r(SHIFT_FRW_ROW, mm5);
- packssdw_r2r(mm0, mm3);
- packssdw_r2r(mm5, mm1);
- movq_r2r(mm3, mm6);
- punpcklwd_r2r(mm1, mm3);
- punpckhwd_r2r(mm1, mm6);
- movq_r2m(mm3, *(out + 0));
- movq_r2m(mm6, *(out + 4));
-}
-
-void ff_fdct_mmx(int16_t *block)
-{
- int64_t align_tmp[16] ATTR_ALIGN(8);
- int16_t * const block_tmp= (int16_t*)align_tmp;
- int16_t *block1, *out;
- const int16_t *table;
- int i;
-
- block1 = block_tmp;
- fdct_col(block, block1, 0);
- fdct_col(block, block1, 4);
-
- block1 = block_tmp;
- table = tab_frw_01234567;
- out = block;
- for(i=8;i>0;i--) {
- fdct_row(block1, out, table);
- block1 += 8;
- table += 32;
- out += 8;
- }
-}
projects / synfig.git / blobdiff