| 1 | ; /* |
| 2 | ; * SIMD optimized idct functions for HEVC decoding |
| 3 | ; * Copyright (c) 2014 Pierre-Edouard LEPERE |
| 4 | ; * Copyright (c) 2014 James Almer |
| 5 | ; * |
| 6 | ; * This file is part of FFmpeg. |
| 7 | ; * |
| 8 | ; * FFmpeg is free software; you can redistribute it and/or |
| 9 | ; * modify it under the terms of the GNU Lesser General Public |
| 10 | ; * License as published by the Free Software Foundation; either |
| 11 | ; * version 2.1 of the License, or (at your option) any later version. |
| 12 | ; * |
| 13 | ; * FFmpeg is distributed in the hope that it will be useful, |
| 14 | ; * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | ; * Lesser General Public License for more details. |
| 17 | ; * |
| 18 | ; * You should have received a copy of the GNU Lesser General Public |
| 19 | ; * License along with FFmpeg; if not, write to the Free Software |
| 20 | ; * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | ; */ |
| 22 | %include "libavutil/x86/x86util.asm" |
| 23 | |
| 24 | SECTION_TEXT 32 |
| 25 | |
| 26 | ; void ff_hevc_idctHxW_dc_{8,10}_<opt>(int16_t *coeffs) |
| 27 | ; %1 = HxW |
| 28 | ; %2 = number of loops |
| 29 | ; %3 = bitdepth |
| 30 | %macro IDCT_DC 3 |
| 31 | cglobal hevc_idct%1x%1_dc_%3, 1, 2, 1, coeff, tmp |
| 32 | movsx tmpq, word [coeffq] |
| 33 | add tmpw, ((1 << 14-%3) + 1) |
| 34 | sar tmpw, (15-%3) |
| 35 | movd xm0, tmpd |
| 36 | SPLATW m0, xm0 |
| 37 | DEFINE_ARGS coeff, cnt |
| 38 | mov cntd, %2 |
| 39 | .loop: |
| 40 | mova [coeffq+mmsize*0], m0 |
| 41 | mova [coeffq+mmsize*1], m0 |
| 42 | mova [coeffq+mmsize*2], m0 |
| 43 | mova [coeffq+mmsize*3], m0 |
| 44 | mova [coeffq+mmsize*4], m0 |
| 45 | mova [coeffq+mmsize*5], m0 |
| 46 | mova [coeffq+mmsize*6], m0 |
| 47 | mova [coeffq+mmsize*7], m0 |
| 48 | add coeffq, mmsize*8 |
| 49 | dec cntd |
| 50 | jg .loop |
| 51 | RET |
| 52 | %endmacro |
| 53 | |
| 54 | ; %1 = HxW |
| 55 | ; %2 = bitdepth |
| 56 | %macro IDCT_DC_NL 2 ; No loop |
| 57 | cglobal hevc_idct%1x%1_dc_%2, 1, 2, 1, coeff, tmp |
| 58 | movsx tmpq, word [coeffq] |
| 59 | add tmpw, ((1 << 14-%2) + 1) |
| 60 | sar tmpw, (15-%2) |
| 61 | movd m0, tmpd |
| 62 | SPLATW m0, xm0 |
| 63 | mova [coeffq+mmsize*0], m0 |
| 64 | mova [coeffq+mmsize*1], m0 |
| 65 | mova [coeffq+mmsize*2], m0 |
| 66 | mova [coeffq+mmsize*3], m0 |
| 67 | %if mmsize == 16 |
| 68 | mova [coeffq+mmsize*4], m0 |
| 69 | mova [coeffq+mmsize*5], m0 |
| 70 | mova [coeffq+mmsize*6], m0 |
| 71 | mova [coeffq+mmsize*7], m0 |
| 72 | %endif |
| 73 | RET |
| 74 | %endmacro |
| 75 | |
| 76 | ; 8-bit |
| 77 | INIT_MMX mmxext |
| 78 | IDCT_DC_NL 4, 8 |
| 79 | IDCT_DC 8, 2, 8 |
| 80 | |
| 81 | INIT_XMM sse2 |
| 82 | IDCT_DC_NL 8, 8 |
| 83 | IDCT_DC 16, 4, 8 |
| 84 | IDCT_DC 32, 16, 8 |
| 85 | |
| 86 | %if HAVE_AVX2_EXTERNAL |
| 87 | INIT_YMM avx2 |
| 88 | IDCT_DC 16, 2, 8 |
| 89 | IDCT_DC 32, 8, 8 |
| 90 | %endif ;HAVE_AVX2_EXTERNAL |
| 91 | |
| 92 | ; 10-bit |
| 93 | INIT_MMX mmxext |
| 94 | IDCT_DC_NL 4, 10 |
| 95 | IDCT_DC 8, 2, 10 |
| 96 | |
| 97 | INIT_XMM sse2 |
| 98 | IDCT_DC_NL 8, 10 |
| 99 | IDCT_DC 16, 4, 10 |
| 100 | IDCT_DC 32, 16, 10 |
| 101 | |
| 102 | %if HAVE_AVX2_EXTERNAL |
| 103 | INIT_YMM avx2 |
| 104 | IDCT_DC 16, 2, 10 |
| 105 | IDCT_DC 32, 8, 10 |
| 106 | %endif ;HAVE_AVX2_EXTERNAL |
| 107 | |
| 108 | ; 12-bit |
| 109 | INIT_MMX mmxext |
| 110 | IDCT_DC_NL 4, 12 |
| 111 | IDCT_DC 8, 2, 12 |
| 112 | |
| 113 | INIT_XMM sse2 |
| 114 | IDCT_DC_NL 8, 12 |
| 115 | IDCT_DC 16, 4, 12 |
| 116 | IDCT_DC 32, 16, 12 |
| 117 | |
| 118 | %if HAVE_AVX2_EXTERNAL |
| 119 | INIT_YMM avx2 |
| 120 | IDCT_DC 16, 2, 12 |
| 121 | IDCT_DC 32, 8, 12 |
| 122 | %endif ;HAVE_AVX2_EXTERNAL |