repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * This file is part of FFmpeg. | |
| 3 | * | |
| 4 | * FFmpeg is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU Lesser General Public | |
| 6 | * License as published by the Free Software Foundation; either | |
| 7 | * version 2.1 of the License, or (at your option) any later version. | |
| 8 | * | |
| 9 | * FFmpeg is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | * Lesser General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU Lesser General Public | |
| 15 | * License along with FFmpeg; if not, write to the Free Software | |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | */ | |
| 18 | ||
| 19 | #include "config.h" | |
| 20 | #include "libavutil/attributes.h" | |
| 21 | #include "libavutil/cpu.h" | |
| 22 | #include "libavutil/x86/cpu.h" | |
| 23 | #include "libavcodec/avcodec.h" | |
| 24 | #include "libavcodec/idctdsp.h" | |
| 25 | #include "idctdsp.h" | |
| 26 | #include "simple_idct.h" | |
| 27 | ||
| 28 | /* Input permutation for the simple_idct_mmx */ | |
| 29 | static const uint8_t simple_mmx_permutation[64] = { | |
| 30 | 0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D, | |
| 31 | 0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D, | |
| 32 | 0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D, | |
| 33 | 0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F, | |
| 34 | 0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F, | |
| 35 | 0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D, | |
| 36 | 0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F, | |
| 37 | 0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F, | |
| 38 | }; | |
| 39 | ||
| 40 | static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 }; | |
| 41 | ||
| 42 | av_cold int ff_init_scantable_permutation_x86(uint8_t *idct_permutation, | |
| 43 | enum idct_permutation_type perm_type) | |
| 44 | { | |
| 45 | int i; | |
| 46 | ||
| 47 | switch (perm_type) { | |
| 48 | case FF_IDCT_PERM_SIMPLE: | |
| 49 | for (i = 0; i < 64; i++) | |
| 50 | idct_permutation[i] = simple_mmx_permutation[i]; | |
| 51 | return 1; | |
| 52 | case FF_IDCT_PERM_SSE2: | |
| 53 | for (i = 0; i < 64; i++) | |
| 54 | idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7]; | |
| 55 | return 1; | |
| 56 | } | |
| 57 | ||
| 58 | return 0; | |
| 59 | } | |
| 60 | ||
| 61 | av_cold void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx, | |
| 62 | unsigned high_bit_depth) | |
| 63 | { | |
| 64 | int cpu_flags = av_get_cpu_flags(); | |
| 65 | ||
| 66 | if (INLINE_MMX(cpu_flags)) { | |
| 2ba45a60 DM |
67 | if (!high_bit_depth && |
| 68 | avctx->lowres == 0 && | |
| 69 | (avctx->idct_algo == FF_IDCT_AUTO || | |
| 70 | avctx->idct_algo == FF_IDCT_SIMPLEAUTO || | |
| 71 | avctx->idct_algo == FF_IDCT_SIMPLEMMX)) { | |
| 72 | c->idct_put = ff_simple_idct_put_mmx; | |
| 73 | c->idct_add = ff_simple_idct_add_mmx; | |
| 74 | c->idct = ff_simple_idct_mmx; | |
| 75 | c->perm_type = FF_IDCT_PERM_SIMPLE; | |
| 76 | } | |
| 77 | } | |
| 78 | if (EXTERNAL_MMX(cpu_flags)) { | |
| 79 | c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmx; | |
| f6fa7814 DM |
80 | c->put_pixels_clamped = ff_put_pixels_clamped_mmx; |
| 81 | c->add_pixels_clamped = ff_add_pixels_clamped_mmx; | |
| 2ba45a60 DM |
82 | } |
| 83 | if (EXTERNAL_SSE2(cpu_flags)) { | |
| 84 | c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2; | |
| f6fa7814 DM |
85 | c->put_pixels_clamped = ff_put_pixels_clamped_sse2; |
| 86 | c->add_pixels_clamped = ff_add_pixels_clamped_sse2; | |
| 2ba45a60 DM |
87 | } |
| 88 | } |