| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /** | ||
| 2 | * Copyright (C) 2025 Niklas Haas | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include "ops_backend.h" | ||
| 22 | |||
| 23 | #if AV_GCC_VERSION_AT_LEAST(4, 4) | ||
| 24 | #pragma GCC optimize ("finite-math-only") | ||
| 25 | #endif | ||
| 26 | |||
| 27 | /* Array-based reference implementation */ | ||
| 28 | |||
| 29 | #ifndef SWS_BLOCK_SIZE | ||
| 30 | # define SWS_BLOCK_SIZE 32 | ||
| 31 | #endif | ||
| 32 | |||
| 33 | typedef uint8_t u8block_t[SWS_BLOCK_SIZE]; | ||
| 34 | typedef uint16_t u16block_t[SWS_BLOCK_SIZE]; | ||
| 35 | typedef uint32_t u32block_t[SWS_BLOCK_SIZE]; | ||
| 36 | typedef float f32block_t[SWS_BLOCK_SIZE]; | ||
| 37 | |||
| 38 | #define BIT_DEPTH 8 | ||
| 39 | # include "ops_tmpl_int.c" | ||
| 40 | #undef BIT_DEPTH | ||
| 41 | |||
| 42 | #define BIT_DEPTH 16 | ||
| 43 | # include "ops_tmpl_int.c" | ||
| 44 | #undef BIT_DEPTH | ||
| 45 | |||
| 46 | #define BIT_DEPTH 32 | ||
| 47 | # include "ops_tmpl_int.c" | ||
| 48 | # include "ops_tmpl_float.c" | ||
| 49 | #undef BIT_DEPTH | ||
| 50 | |||
| 51 | 1162 | static void process(const SwsOpExec *exec, const void *priv, | |
| 52 | const int bx_start, const int y_start, int bx_end, int y_end) | ||
| 53 | { | ||
| 54 | 1162 | const SwsOpChain *chain = priv; | |
| 55 | 1162 | const SwsOpImpl *impl = chain->impl; | |
| 56 | SwsOpIter iter; | ||
| 57 | |||
| 58 |
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3486 | for (iter.y = y_start; iter.y < y_end; iter.y++) { |
| 59 |
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11620 | for (int i = 0; i < 4; i++) { |
| 60 | 9296 | iter.in[i] = exec->in[i] + (iter.y - y_start) * exec->in_stride[i]; | |
| 61 | 9296 | iter.out[i] = exec->out[i] + (iter.y - y_start) * exec->out_stride[i]; | |
| 62 | } | ||
| 63 | |||
| 64 |
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6972 | for (int block = bx_start; block < bx_end; block++) { |
| 65 | 4648 | iter.x = block * SWS_BLOCK_SIZE; | |
| 66 | 4648 | ((void (*)(SwsOpIter *, const SwsOpImpl *)) impl->cont) | |
| 67 | (&iter, &impl[1]); | ||
| 68 | } | ||
| 69 | } | ||
| 70 | 1162 | } | |
| 71 | |||
| 72 | 6422 | static int compile(SwsContext *ctx, SwsOpList *ops, SwsCompiledOp *out) | |
| 73 | { | ||
| 74 | int ret; | ||
| 75 | |||
| 76 | 6422 | SwsOpChain *chain = ff_sws_op_chain_alloc(); | |
| 77 |
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6422 | if (!chain) |
| 78 | ✗ | return AVERROR(ENOMEM); | |
| 79 | |||
| 80 | static const SwsOpTable *const tables[] = { | ||
| 81 | &bitfn(op_table_int, u8), | ||
| 82 | &bitfn(op_table_int, u16), | ||
| 83 | &bitfn(op_table_int, u32), | ||
| 84 | &bitfn(op_table_float, f32), | ||
| 85 | }; | ||
| 86 | |||
| 87 | do { | ||
| 88 | 19240 | ret = ff_sws_op_compile_tables(tables, FF_ARRAY_ELEMS(tables), ops, | |
| 89 | SWS_BLOCK_SIZE, chain); | ||
| 90 |
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19240 | } while (ret == AVERROR(EAGAIN)); |
| 91 |
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6422 | if (ret < 0) { |
| 92 | ✗ | ff_sws_op_chain_free(chain); | |
| 93 | ✗ | return ret; | |
| 94 | } | ||
| 95 | |||
| 96 | 6422 | *out = (SwsCompiledOp) { | |
| 97 | .func = process, | ||
| 98 | .block_size = SWS_BLOCK_SIZE, | ||
| 99 | 6422 | .cpu_flags = chain->cpu_flags, | |
| 100 | .priv = chain, | ||
| 101 | .free = (void (*)(void *)) ff_sws_op_chain_free, | ||
| 102 | }; | ||
| 103 | 6422 | return 0; | |
| 104 | } | ||
| 105 | |||
| 106 | const SwsOpBackend backend_c = { | ||
| 107 | .name = "c", | ||
| 108 | .compile = compile, | ||
| 109 | }; | ||
| 110 |