diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/i386/fdct_mmx.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/i386/fdct_mmx.c | 566 |
1 files changed, 566 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/i386/fdct_mmx.c b/contrib/ffmpeg/libavcodec/i386/fdct_mmx.c new file mode 100644 index 000000000..7e2682a4a --- /dev/null +++ b/contrib/ffmpeg/libavcodec/i386/fdct_mmx.c @@ -0,0 +1,566 @@ +/* + * MMX optimized forward DCT + * The gcc porting is Copyright (c) 2001 Fabrice Bellard. + * cleanup/optimizations are Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> + * SSE2 optimization is Copyright (c) 2004 Denes Balatoni. + * + * 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 + * + * Also of inspiration: + * a page about fdct at http://www.geocities.com/ssavekar/dct.htm + * Skal's fdct at http://skal.planet-d.net/coding/dct.html + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include "common.h" +#include "../dsputil.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 (1 << (SHIFT_FRW_ROW-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 ocos_4_16[4] ATTR_ALIGN(8) = { + 23170, 23170, 23170, 23170, //cos * (2<<15) + 0.5 +}; + +static const int64_t fdct_one_corr ATTR_ALIGN(8) = 0x0001000100010001LL; + +static const int32_t fdct_r_row[2] ATTR_ALIGN(8) = {RND_FRW_ROW, RND_FRW_ROW }; + +static struct +{ + const int32_t fdct_r_row_sse2[4] ATTR_ALIGN(16); +} fdct_r_row_sse2 ATTR_ALIGN(16)= +{{ + RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW +}}; +//static const long fdct_r_row_sse2[4] ATTR_ALIGN(16) = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW}; + +static const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { // forward_dct coeff table + 16384, 16384, 22725, 19266, + 16384, 16384, 12873, 4520, + 21407, 8867, 19266, -4520, + -8867, -21407, -22725, -12873, + 16384, -16384, 12873, -22725, + -16384, 16384, 4520, 19266, + 8867, -21407, 4520, -12873, + 21407, -8867, 19266, -22725, + + 22725, 22725, 31521, 26722, + 22725, 22725, 17855, 6270, + 29692, 12299, 26722, -6270, + -12299, -29692, -31521, -17855, + 22725, -22725, 17855, -31521, + -22725, 22725, 6270, 26722, + 12299, -29692, 6270, -17855, + 29692, -12299, 26722, -31521, + + 21407, 21407, 29692, 25172, + 21407, 21407, 16819, 5906, + 27969, 11585, 25172, -5906, + -11585, -27969, -29692, -16819, + 21407, -21407, 16819, -29692, + -21407, 21407, 5906, 25172, + 11585, -27969, 5906, -16819, + 27969, -11585, 25172, -29692, + + 19266, 19266, 26722, 22654, + 19266, 19266, 15137, 5315, + 25172, 10426, 22654, -5315, + -10426, -25172, -26722, -15137, + 19266, -19266, 15137, -26722, + -19266, 19266, 5315, 22654, + 10426, -25172, 5315, -15137, + 25172, -10426, 22654, -26722, + + 16384, 16384, 22725, 19266, + 16384, 16384, 12873, 4520, + 21407, 8867, 19266, -4520, + -8867, -21407, -22725, -12873, + 16384, -16384, 12873, -22725, + -16384, 16384, 4520, 19266, + 8867, -21407, 4520, -12873, + 21407, -8867, 19266, -22725, + + 19266, 19266, 26722, 22654, + 19266, 19266, 15137, 5315, + 25172, 10426, 22654, -5315, + -10426, -25172, -26722, -15137, + 19266, -19266, 15137, -26722, + -19266, 19266, 5315, 22654, + 10426, -25172, 5315, -15137, + 25172, -10426, 22654, -26722, + + 21407, 21407, 29692, 25172, + 21407, 21407, 16819, 5906, + 27969, 11585, 25172, -5906, + -11585, -27969, -29692, -16819, + 21407, -21407, 16819, -29692, + -21407, 21407, 5906, 25172, + 11585, -27969, 5906, -16819, + 27969, -11585, 25172, -29692, + + 22725, 22725, 31521, 26722, + 22725, 22725, 17855, 6270, + 29692, 12299, 26722, -6270, + -12299, -29692, -31521, -17855, + 22725, -22725, 17855, -31521, + -22725, 22725, 6270, 26722, + 12299, -29692, 6270, -17855, + 29692, -12299, 26722, -31521, +}; + +static struct +{ + const int16_t tab_frw_01234567_sse2[256] ATTR_ALIGN(16); +} tab_frw_01234567_sse2 ATTR_ALIGN(16) = +{{ +//static const int16_t tab_frw_01234567_sse2[] ATTR_ALIGN(16) = { // forward_dct coeff table +#define TABLE_SSE2 C4, C4, C1, C3, -C6, -C2, -C1, -C5, \ + C4, C4, C5, C7, C2, C6, C3, -C7, \ + -C4, C4, C7, C3, C6, -C2, C7, -C5, \ + C4, -C4, C5, -C1, C2, -C6, C3, -C1, +// c1..c7 * cos(pi/4) * 2^15 +#define C1 22725 +#define C2 21407 +#define C3 19266 +#define C4 16384 +#define C5 12873 +#define C6 8867 +#define C7 4520 +TABLE_SSE2 + +#undef C1 +#undef C2 +#undef C3 +#undef C4 +#undef C5 +#undef C6 +#undef C7 +#define C1 31521 +#define C2 29692 +#define C3 26722 +#define C4 22725 +#define C5 17855 +#define C6 12299 +#define C7 6270 +TABLE_SSE2 + +#undef C1 +#undef C2 +#undef C3 +#undef C4 +#undef C5 +#undef C6 +#undef C7 +#define C1 29692 +#define C2 27969 +#define C3 25172 +#define C4 21407 +#define C5 16819 +#define C6 11585 +#define C7 5906 +TABLE_SSE2 + +#undef C1 +#undef C2 +#undef C3 +#undef C4 +#undef C5 +#undef C6 +#undef C7 +#define C1 26722 +#define C2 25172 +#define C3 22654 +#define C4 19266 +#define C5 15137 +#define C6 10426 +#define C7 5315 +TABLE_SSE2 + +#undef C1 +#undef C2 +#undef C3 +#undef C4 +#undef C5 +#undef C6 +#undef C7 +#define C1 22725 +#define C2 21407 +#define C3 19266 +#define C4 16384 +#define C5 12873 +#define C6 8867 +#define C7 4520 +TABLE_SSE2 + +#undef C1 +#undef C2 +#undef C3 +#undef C4 +#undef C5 +#undef C6 +#undef C7 +#define C1 26722 +#define C2 25172 +#define C3 22654 +#define C4 19266 +#define C5 15137 +#define C6 10426 +#define C7 5315 +TABLE_SSE2 + +#undef C1 +#undef C2 +#undef C3 +#undef C4 +#undef C5 +#undef C6 +#undef C7 +#define C1 29692 +#define C2 27969 +#define C3 25172 +#define C4 21407 +#define C5 16819 +#define C6 11585 +#define C7 5906 +TABLE_SSE2 + +#undef C1 +#undef C2 +#undef C3 +#undef C4 +#undef C5 +#undef C6 +#undef C7 +#define C1 31521 +#define C2 29692 +#define C3 26722 +#define C4 22725 +#define C5 17855 +#define C6 12299 +#define C7 6270 +TABLE_SSE2 +}}; + + +static av_always_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 av_always_inline void fdct_row_sse2(const int16_t *in, int16_t *out) +{ + asm volatile( +#define FDCT_ROW_SSE2_H1(i,t) \ + "movq " #i "(%0), %%xmm2 \n\t" \ + "movq " #i "+8(%0), %%xmm0 \n\t" \ + "movdqa " #t "+32(%1), %%xmm3 \n\t" \ + "movdqa " #t "+48(%1), %%xmm7 \n\t" \ + "movdqa " #t "(%1), %%xmm4 \n\t" \ + "movdqa " #t "+16(%1), %%xmm5 \n\t" + +#define FDCT_ROW_SSE2_H2(i,t) \ + "movq " #i "(%0), %%xmm2 \n\t" \ + "movq " #i "+8(%0), %%xmm0 \n\t" \ + "movdqa " #t "+32(%1), %%xmm3 \n\t" \ + "movdqa " #t "+48(%1), %%xmm7 \n\t" + +#define FDCT_ROW_SSE2(i) \ + "movq %%xmm2, %%xmm1 \n\t" \ + "pshuflw $27, %%xmm0, %%xmm0 \n\t" \ + "paddsw %%xmm0, %%xmm1 \n\t" \ + "psubsw %%xmm0, %%xmm2 \n\t" \ + "punpckldq %%xmm2, %%xmm1 \n\t" \ + "pshufd $78, %%xmm1, %%xmm2 \n\t" \ + "pmaddwd %%xmm2, %%xmm3 \n\t" \ + "pmaddwd %%xmm1, %%xmm7 \n\t" \ + "pmaddwd %%xmm5, %%xmm2 \n\t" \ + "pmaddwd %%xmm4, %%xmm1 \n\t" \ + "paddd %%xmm7, %%xmm3 \n\t" \ + "paddd %%xmm2, %%xmm1 \n\t" \ + "paddd %%xmm6, %%xmm3 \n\t" \ + "paddd %%xmm6, %%xmm1 \n\t" \ + "psrad %3, %%xmm3 \n\t" \ + "psrad %3, %%xmm1 \n\t" \ + "packssdw %%xmm3, %%xmm1 \n\t" \ + "movdqa %%xmm1, " #i "(%4) \n\t" + + "movdqa (%2), %%xmm6 \n\t" + FDCT_ROW_SSE2_H1(0,0) + FDCT_ROW_SSE2(0) + FDCT_ROW_SSE2_H2(64,0) + FDCT_ROW_SSE2(64) + + FDCT_ROW_SSE2_H1(16,64) + FDCT_ROW_SSE2(16) + FDCT_ROW_SSE2_H2(112,64) + FDCT_ROW_SSE2(112) + + FDCT_ROW_SSE2_H1(32,128) + FDCT_ROW_SSE2(32) + FDCT_ROW_SSE2_H2(96,128) + FDCT_ROW_SSE2(96) + + FDCT_ROW_SSE2_H1(48,192) + FDCT_ROW_SSE2(48) + FDCT_ROW_SSE2_H2(80,192) + FDCT_ROW_SSE2(80) + : + : "r" (in), "r" (tab_frw_01234567_sse2.tab_frw_01234567_sse2), "r" (fdct_r_row_sse2.fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out) + ); +} + +static av_always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const int16_t *table) +{ + pshufw_m2r(*(in + 4), mm5, 0x1B); + movq_m2r(*(in + 0), mm0); + movq_r2r(mm0, mm1); + paddsw_r2r(mm5, mm0); + psubsw_r2r(mm5, mm1); + movq_r2r(mm0, mm2); + punpckldq_r2r(mm1, mm0); + punpckhdq_r2r(mm1, mm2); + movq_m2r(*(table + 0), mm1); + movq_m2r(*(table + 4), mm3); + movq_m2r(*(table + 8), mm4); + movq_m2r(*(table + 12), mm5); + movq_m2r(*(table + 16), mm6); + movq_m2r(*(table + 20), mm7); + pmaddwd_r2r(mm0, mm1); + pmaddwd_r2r(mm2, mm3); + pmaddwd_r2r(mm0, mm4); + pmaddwd_r2r(mm2, mm5); + pmaddwd_r2r(mm0, mm6); + pmaddwd_r2r(mm2, mm7); + pmaddwd_m2r(*(table + 24), mm0); + pmaddwd_m2r(*(table + 28), mm2); + paddd_r2r(mm1, mm3); + paddd_r2r(mm4, mm5); + paddd_r2r(mm6, mm7); + paddd_r2r(mm0, mm2); + movq_m2r(*fdct_r_row, mm0); + paddd_r2r(mm0, mm3); + paddd_r2r(mm0, mm5); + paddd_r2r(mm0, mm7); + paddd_r2r(mm0, mm2); + psrad_i2r(SHIFT_FRW_ROW, mm3); + psrad_i2r(SHIFT_FRW_ROW, mm5); + psrad_i2r(SHIFT_FRW_ROW, mm7); + psrad_i2r(SHIFT_FRW_ROW, mm2); + packssdw_r2r(mm5, mm3); + packssdw_r2r(mm2, mm7); + movq_r2m(mm3, *(out + 0)); + movq_r2m(mm7, *(out + 4)); +} + +static av_always_inline void fdct_row_mmx(const int16_t *in, int16_t *out, const int16_t *table) +{ +//FIXME reorder (i dont have a old mmx only cpu here to benchmark ...) + 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, mm1); + movq_r2r(mm0, mm5); + paddsw_r2r(mm1, mm0); + psubsw_r2r(mm1, mm5); + movq_r2r(mm0, mm2); + punpckldq_r2r(mm5, mm0); + punpckhdq_r2r(mm5, mm2); + movq_m2r(*(table + 0), mm1); + movq_m2r(*(table + 4), mm3); + movq_m2r(*(table + 8), mm4); + movq_m2r(*(table + 12), mm5); + movq_m2r(*(table + 16), mm6); + movq_m2r(*(table + 20), mm7); + pmaddwd_r2r(mm0, mm1); + pmaddwd_r2r(mm2, mm3); + pmaddwd_r2r(mm0, mm4); + pmaddwd_r2r(mm2, mm5); + pmaddwd_r2r(mm0, mm6); + pmaddwd_r2r(mm2, mm7); + pmaddwd_m2r(*(table + 24), mm0); + pmaddwd_m2r(*(table + 28), mm2); + paddd_r2r(mm1, mm3); + paddd_r2r(mm4, mm5); + paddd_r2r(mm6, mm7); + paddd_r2r(mm0, mm2); + movq_m2r(*fdct_r_row, mm0); + paddd_r2r(mm0, mm3); + paddd_r2r(mm0, mm5); + paddd_r2r(mm0, mm7); + paddd_r2r(mm0, mm2); + psrad_i2r(SHIFT_FRW_ROW, mm3); + psrad_i2r(SHIFT_FRW_ROW, mm5); + psrad_i2r(SHIFT_FRW_ROW, mm7); + psrad_i2r(SHIFT_FRW_ROW, mm2); + packssdw_r2r(mm5, mm3); + packssdw_r2r(mm2, mm7); + movq_r2m(mm3, *(out + 0)); + movq_r2m(mm7, *(out + 4)); +} + +void ff_fdct_mmx(int16_t *block) +{ + int64_t align_tmp[16] ATTR_ALIGN(8); + int16_t * block1= (int16_t*)align_tmp; + const int16_t *table= tab_frw_01234567; + int i; + + fdct_col(block, block1, 0); + fdct_col(block, block1, 4); + + for(i=8;i>0;i--) { + fdct_row_mmx(block1, block, table); + block1 += 8; + table += 32; + block += 8; + } +} + +void ff_fdct_mmx2(int16_t *block) +{ + int64_t align_tmp[16] ATTR_ALIGN(8); + int16_t *block1= (int16_t*)align_tmp; + const int16_t *table= tab_frw_01234567; + int i; + + fdct_col(block, block1, 0); + fdct_col(block, block1, 4); + + for(i=8;i>0;i--) { + fdct_row_mmx2(block1, block, table); + block1 += 8; + table += 32; + block += 8; + } +} + +void ff_fdct_sse2(int16_t *block) +{ + int64_t align_tmp[16] ATTR_ALIGN(16); + int16_t * const block1= (int16_t*)align_tmp; + + fdct_col(block, block1, 0); + fdct_col(block, block1, 4); + + fdct_row_sse2(block1, block); +} + |