| Line | Branch | Exec | Source |
|---|---|---|---|
| 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 <stdint.h> | ||
| 20 | |||
| 21 | #include "config.h" | ||
| 22 | #include "libavutil/attributes.h" | ||
| 23 | #include "mathops.h" | ||
| 24 | #include "huffyuv.h" | ||
| 25 | #include "huffyuvdsp.h" | ||
| 26 | |||
| 27 | // 0x00010001 or 0x0001000100010001 or whatever, depending on the cpu's native arithmetic size | ||
| 28 | #define pw_1 (ULONG_MAX / UINT16_MAX) | ||
| 29 | |||
| 30 | 134106 | static void add_int16_c(uint16_t *dst, const uint16_t *src, unsigned mask, int w){ | |
| 31 | long i; | ||
| 32 | 134106 | unsigned long pw_lsb = (mask >> 1) * pw_1; | |
| 33 | 134106 | unsigned long pw_msb = pw_lsb + pw_1; | |
| 34 |
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11541978 | for (i = 0; i <= w - (int)sizeof(long)/2; i += sizeof(long)/2) { |
| 35 | 11407872 | long a = *(long*)(src+i); | |
| 36 | 11407872 | long b = *(long*)(dst+i); | |
| 37 | 11407872 | *(long*)(dst+i) = ((a&pw_lsb) + (b&pw_lsb)) ^ ((a^b)&pw_msb); | |
| 38 | } | ||
| 39 |
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144006 | for(; i<w; i++) |
| 40 | 9900 | dst[i] = (dst[i] + src[i]) & mask; | |
| 41 | 134106 | } | |
| 42 | |||
| 43 | ✗ | static void add_hfyu_median_pred_int16_c(uint16_t *dst, const uint16_t *src, const uint16_t *diff, unsigned mask, int w, int *left, int *left_top){ | |
| 44 | int i; | ||
| 45 | uint16_t l, lt; | ||
| 46 | |||
| 47 | ✗ | l = *left; | |
| 48 | ✗ | lt = *left_top; | |
| 49 | |||
| 50 | ✗ | for(i=0; i<w; i++){ | |
| 51 | ✗ | l = (mid_pred(l, src[i], (l + src[i] - lt) & mask) + diff[i]) & mask; | |
| 52 | ✗ | lt = src[i]; | |
| 53 | ✗ | dst[i] = l; | |
| 54 | } | ||
| 55 | |||
| 56 | ✗ | *left = l; | |
| 57 | ✗ | *left_top = lt; | |
| 58 | ✗ | } | |
| 59 | |||
| 60 | 89803 | static void add_hfyu_left_pred_bgr32_c(uint8_t *dst, const uint8_t *src, | |
| 61 | intptr_t w, uint8_t *left) | ||
| 62 | { | ||
| 63 | int i; | ||
| 64 | 89803 | uint8_t r = left[R], g = left[G], b = left[B], a = left[A]; | |
| 65 | |||
| 66 |
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30621043 | for (i = 0; i < w; i++) { |
| 67 | 30531240 | b += src[4 * i + B]; | |
| 68 | 30531240 | g += src[4 * i + G]; | |
| 69 | 30531240 | r += src[4 * i + R]; | |
| 70 | 30531240 | a += src[4 * i + A]; | |
| 71 | |||
| 72 | 30531240 | dst[4 * i + B] = b; | |
| 73 | 30531240 | dst[4 * i + G] = g; | |
| 74 | 30531240 | dst[4 * i + R] = r; | |
| 75 | 30531240 | dst[4 * i + A] = a; | |
| 76 | } | ||
| 77 | |||
| 78 | 89803 | left[B] = b; | |
| 79 | 89803 | left[G] = g; | |
| 80 | 89803 | left[R] = r; | |
| 81 | 89803 | left[A] = a; | |
| 82 | 89803 | } | |
| 83 | |||
| 84 | 98 | av_cold void ff_huffyuvdsp_init(HuffYUVDSPContext *c, enum AVPixelFormat pix_fmt) | |
| 85 | { | ||
| 86 | 98 | c->add_int16 = add_int16_c; | |
| 87 | 98 | c->add_hfyu_median_pred_int16 = add_hfyu_median_pred_int16_c; | |
| 88 | 98 | c->add_hfyu_left_pred_bgr32 = add_hfyu_left_pred_bgr32_c; | |
| 89 | |||
| 90 | #if ARCH_RISCV | ||
| 91 | ff_huffyuvdsp_init_riscv(c, pix_fmt); | ||
| 92 | #elif ARCH_X86 | ||
| 93 | 98 | ff_huffyuvdsp_init_x86(c, pix_fmt); | |
| 94 | #endif | ||
| 95 | 98 | } | |
| 96 |