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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6147 | serge | 1 | /* |
| 2 | * This file is part of FFmpeg. |
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| 3 | * |
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| 4 | * FFmpeg is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * FFmpeg is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with FFmpeg; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 17 | */ |
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| 18 | |||
| 19 | #include "config.h" |
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| 20 | #include "libavutil/attributes.h" |
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| 21 | #include "libavutil/cpu.h" |
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| 22 | #include "libavutil/x86/cpu.h" |
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| 23 | #include "libavcodec/avcodec.h" |
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| 24 | #include "libavcodec/idctdsp.h" |
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| 25 | #include "idctdsp.h" |
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| 26 | #include "simple_idct.h" |
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| 27 | |||
| 28 | /* Input permutation for the simple_idct_mmx */ |
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| 29 | static const uint8_t simple_mmx_permutation[64] = { |
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| 30 | 0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D, |
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| 31 | 0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D, |
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| 32 | 0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D, |
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| 33 | 0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F, |
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| 34 | 0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F, |
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| 35 | 0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D, |
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| 36 | 0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F, |
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| 37 | 0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F, |
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| 38 | }; |
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| 39 | |||
| 40 | static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 }; |
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| 41 | |||
| 42 | av_cold int ff_init_scantable_permutation_x86(uint8_t *idct_permutation, |
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| 43 | enum idct_permutation_type perm_type) |
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| 44 | { |
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| 45 | int i; |
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| 46 | |||
| 47 | switch (perm_type) { |
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| 48 | case FF_IDCT_PERM_SIMPLE: |
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| 49 | for (i = 0; i < 64; i++) |
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| 50 | idct_permutation[i] = simple_mmx_permutation[i]; |
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| 51 | return 1; |
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| 52 | case FF_IDCT_PERM_SSE2: |
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| 53 | for (i = 0; i < 64; i++) |
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| 54 | idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7]; |
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| 55 | return 1; |
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| 56 | } |
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| 57 | |||
| 58 | return 0; |
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| 59 | } |
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| 60 | |||
| 61 | av_cold void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx, |
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| 62 | unsigned high_bit_depth) |
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| 63 | { |
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| 64 | int cpu_flags = av_get_cpu_flags(); |
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| 65 | |||
| 66 | if (INLINE_MMX(cpu_flags)) { |
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| 67 | if (!high_bit_depth && |
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| 68 | avctx->lowres == 0 && |
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| 69 | (avctx->idct_algo == FF_IDCT_AUTO || |
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| 70 | avctx->idct_algo == FF_IDCT_SIMPLEAUTO || |
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| 71 | avctx->idct_algo == FF_IDCT_SIMPLEMMX)) { |
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| 72 | c->idct_put = ff_simple_idct_put_mmx; |
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| 73 | c->idct_add = ff_simple_idct_add_mmx; |
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| 74 | c->idct = ff_simple_idct_mmx; |
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| 75 | c->perm_type = FF_IDCT_PERM_SIMPLE; |
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| 76 | } |
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| 77 | } |
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| 78 | if (EXTERNAL_MMX(cpu_flags)) { |
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| 79 | c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmx; |
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| 80 | c->put_pixels_clamped = ff_put_pixels_clamped_mmx; |
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| 81 | c->add_pixels_clamped = ff_add_pixels_clamped_mmx; |
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| 82 | } |
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| 83 | if (EXTERNAL_SSE2(cpu_flags)) { |
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| 84 | c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2; |
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| 85 | c->put_pixels_clamped = ff_put_pixels_clamped_sse2; |
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| 86 | c->add_pixels_clamped = ff_add_pixels_clamped_sse2; |
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| 87 | } |
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| 88 | } |