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#include <string.h> 21 22#include "config.h" 23#include "libavutil/attributes.h" 24#include "avcodec.h" 25#include "blockdsp.h" 26 27static void clear_block_c(int16_t *block) 28{ 29 memset(block, 0, sizeof(int16_t) * 64); 30} 31 32static void clear_blocks_c(int16_t *blocks) 33{ 34 memset(blocks, 0, sizeof(int16_t) * 6 * 64); 35} 36 37static void fill_block16_c(uint8_t *block, uint8_t value, ptrdiff_t line_size, 38 int h) 39{ 40 int i; 41 42 for (i = 0; i < h; i++) { 43 memset(block, value, 16); 44 block += line_size; 45 } 46} 47 48static void fill_block8_c(uint8_t *block, uint8_t value, ptrdiff_t line_size, 49 int h) 50{ 51 int i; 52 53 for (i = 0; i < h; i++) { 54 memset(block, value, 8); 55 block += line_size; 56 } 57} 58 59av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx) 60{ 61 c->clear_block = clear_block_c; 62 c->clear_blocks = clear_blocks_c; 63 64 c->fill_block_tab[0] = fill_block16_c; 65 c->fill_block_tab[1] = fill_block8_c; 66 67#if ARCH_ALPHA 68 ff_blockdsp_init_alpha(c); 69#elif ARCH_ARM 70 ff_blockdsp_init_arm(c); 71#elif ARCH_PPC 72 ff_blockdsp_init_ppc(c); 73#elif ARCH_X86 74 ff_blockdsp_init_x86(c, avctx); 75#elif ARCH_MIPS 76 ff_blockdsp_init_mips(c); 77#endif 78} 79