| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Texture block compression and decompression | ||
| 3 | * Copyright (C) 2015 Vittorio Giovara <vittorio.giovara@gmail.com> | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | * | ||
| 21 | */ | ||
| 22 | |||
| 23 | 78 | int TEXTUREDSP_FUNC_NAME(AVCodecContext *avctx, void *arg, | |
| 24 | int slice, int thread_nb) | ||
| 25 | { | ||
| 26 | 78 | TextureDSPThreadContext *ctx = arg; | |
| 27 | 78 | uint8_t *d = ctx->tex_data.out; | |
| 28 | 78 | int w_block = avctx->coded_width / TEXTURE_BLOCK_W; | |
| 29 | 78 | int h_block = avctx->coded_height / TEXTURE_BLOCK_H; | |
| 30 | int x, y; | ||
| 31 | int start_slice, end_slice; | ||
| 32 | 78 | int base_blocks_per_slice = h_block / ctx->slice_count; | |
| 33 | 78 | int remainder_blocks = h_block % ctx->slice_count; | |
| 34 | |||
| 35 | /* When the frame height (in blocks) doesn't divide evenly between the | ||
| 36 | * number of slices, spread the remaining blocks evenly between the first | ||
| 37 | * operations */ | ||
| 38 | 78 | start_slice = slice * base_blocks_per_slice; | |
| 39 | /* Add any extra blocks (one per slice) that have been added before this slice */ | ||
| 40 | 78 | start_slice += FFMIN(slice, remainder_blocks); | |
| 41 | |||
| 42 | 78 | end_slice = start_slice + base_blocks_per_slice; | |
| 43 | /* Add an extra block if there are still remainder blocks to be accounted for */ | ||
| 44 |
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78 | if (slice < remainder_blocks) |
| 45 | ✗ | end_slice++; | |
| 46 | |||
| 47 |
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1750 | for (y = start_slice; y < end_slice; y++) { |
| 48 | 1672 | uint8_t *p = ctx->frame_data.out + y * ctx->stride * TEXTURE_BLOCK_H; | |
| 49 | 1672 | int off = y * w_block; | |
| 50 |
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86152 | for (x = 0; x < w_block; x++) { |
| 51 | 84480 | ctx->TEXTUREDSP_TEX_FUNC(p + x * ctx->raw_ratio, ctx->stride, | |
| 52 | d + (off + x) * ctx->tex_ratio); | ||
| 53 | } | ||
| 54 | } | ||
| 55 | |||
| 56 | 78 | return 0; | |
| 57 | } | ||
| 58 |