| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * SIMD-optimized lossless video encoding functions | ||
| 3 | * Copyright (c) 2000, 2001 Fabrice Bellard | ||
| 4 | * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> | ||
| 5 | * | ||
| 6 | * MMX optimization by Nick Kurshev <nickols_k@mail.ru> | ||
| 7 | * | ||
| 8 | * This file is part of FFmpeg. | ||
| 9 | * | ||
| 10 | * FFmpeg is free software; you can redistribute it and/or | ||
| 11 | * modify it under the terms of the GNU Lesser General Public | ||
| 12 | * License as published by the Free Software Foundation; either | ||
| 13 | * version 2.1 of the License, or (at your option) any later version. | ||
| 14 | * | ||
| 15 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 18 | * Lesser General Public License for more details. | ||
| 19 | * | ||
| 20 | * You should have received a copy of the GNU Lesser General Public | ||
| 21 | * License along with FFmpeg; if not, write to the Free Software | ||
| 22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 23 | */ | ||
| 24 | |||
| 25 | #include "libavutil/attributes.h" | ||
| 26 | #include "libavutil/cpu.h" | ||
| 27 | #include "libavutil/x86/asm.h" | ||
| 28 | #include "libavutil/x86/cpu.h" | ||
| 29 | #include "libavcodec/lossless_videoencdsp.h" | ||
| 30 | #include "libavcodec/mathops.h" | ||
| 31 | |||
| 32 | void ff_diff_bytes_sse2(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, | ||
| 33 | intptr_t w); | ||
| 34 | void ff_diff_bytes_avx2(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, | ||
| 35 | intptr_t w); | ||
| 36 | |||
| 37 | void ff_sub_left_predict_avx(uint8_t *dst, const uint8_t *src, | ||
| 38 | ptrdiff_t stride, ptrdiff_t width, int height); | ||
| 39 | |||
| 40 | #if HAVE_INLINE_ASM | ||
| 41 | |||
| 42 | ✗ | static void sub_median_pred_mmxext(uint8_t *dst, const uint8_t *src1, | |
| 43 | const uint8_t *src2, intptr_t w, | ||
| 44 | int *left, int *left_top) | ||
| 45 | { | ||
| 46 | ✗ | x86_reg i = 0; | |
| 47 | uint8_t l, lt; | ||
| 48 | |||
| 49 | ✗ | __asm__ volatile ( | |
| 50 | "movq (%1, %0), %%mm0 \n\t" // LT | ||
| 51 | "psllq $8, %%mm0 \n\t" | ||
| 52 | "1: \n\t" | ||
| 53 | "movq (%1, %0), %%mm1 \n\t" // T | ||
| 54 | "movq -1(%2, %0), %%mm2 \n\t" // L | ||
| 55 | "movq (%2, %0), %%mm3 \n\t" // X | ||
| 56 | "movq %%mm2, %%mm4 \n\t" // L | ||
| 57 | "psubb %%mm0, %%mm2 \n\t" | ||
| 58 | "paddb %%mm1, %%mm2 \n\t" // L + T - LT | ||
| 59 | "movq %%mm4, %%mm5 \n\t" // L | ||
| 60 | "pmaxub %%mm1, %%mm4 \n\t" // max(T, L) | ||
| 61 | "pminub %%mm5, %%mm1 \n\t" // min(T, L) | ||
| 62 | "pminub %%mm2, %%mm4 \n\t" | ||
| 63 | "pmaxub %%mm1, %%mm4 \n\t" | ||
| 64 | "psubb %%mm4, %%mm3 \n\t" // dst - pred | ||
| 65 | "movq %%mm3, (%3, %0) \n\t" | ||
| 66 | "add $8, %0 \n\t" | ||
| 67 | "movq -1(%1, %0), %%mm0 \n\t" // LT | ||
| 68 | "cmp %4, %0 \n\t" | ||
| 69 | " jb 1b \n\t" | ||
| 70 | : "+r" (i) | ||
| 71 | : "r" (src1), "r" (src2), "r" (dst), "r" ((x86_reg) w)); | ||
| 72 | |||
| 73 | ✗ | l = *left; | |
| 74 | ✗ | lt = *left_top; | |
| 75 | |||
| 76 | ✗ | dst[0] = src2[0] - mid_pred(l, src1[0], (l + src1[0] - lt) & 0xFF); | |
| 77 | |||
| 78 | ✗ | *left_top = src1[w - 1]; | |
| 79 | ✗ | *left = src2[w - 1]; | |
| 80 | ✗ | } | |
| 81 | |||
| 82 | #endif /* HAVE_INLINE_ASM */ | ||
| 83 | |||
| 84 | 195 | av_cold void ff_llvidencdsp_init_x86(LLVidEncDSPContext *c) | |
| 85 | { | ||
| 86 | 195 | av_unused int cpu_flags = av_get_cpu_flags(); | |
| 87 | |||
| 88 | #if HAVE_INLINE_ASM | ||
| 89 |
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195 | if (INLINE_MMXEXT(cpu_flags)) { |
| 90 | 11 | c->sub_median_pred = sub_median_pred_mmxext; | |
| 91 | } | ||
| 92 | #endif /* HAVE_INLINE_ASM */ | ||
| 93 | |||
| 94 |
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195 | if (EXTERNAL_SSE2(cpu_flags)) { |
| 95 | 9 | c->diff_bytes = ff_diff_bytes_sse2; | |
| 96 | } | ||
| 97 | |||
| 98 |
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195 | if (EXTERNAL_AVX(cpu_flags)) { |
| 99 | 3 | c->sub_left_predict = ff_sub_left_predict_avx; | |
| 100 | } | ||
| 101 | |||
| 102 |
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195 | if (EXTERNAL_AVX2_FAST(cpu_flags)) { |
| 103 | 1 | c->diff_bytes = ff_diff_bytes_avx2; | |
| 104 | } | ||
| 105 | 195 | } | |
| 106 |