/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <stdint.h>#include <string.h> #include "config.h"#include "libavutil/attributes.h"#include "avcodec.h"#include "blockdsp.h"#include "version.h" static void clear_block_c(int16_t *block){    memset(block, 0, sizeof(int16_t) * 64);} static void clear_blocks_c(int16_t *blocks){    memset(blocks, 0, sizeof(int16_t) * 6 * 64);} static void fill_block16_c(uint8_t *block, uint8_t value, ptrdiff_t line_size,                           int h){    int i;     for (i = 0; i < h; i++) {        memset(block, value, 16);        block += line_size;    }} static void fill_block8_c(uint8_t *block, uint8_t value, ptrdiff_t line_size,                          int h){    int i;     for (i = 0; i < h; i++) {        memset(block, value, 8);        block += line_size;    }} av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx){    c->clear_block  = clear_block_c;    c->clear_blocks = clear_blocks_c;     c->fill_block_tab[0] = fill_block16_c;    c->fill_block_tab[1] = fill_block8_c;     if (ARCH_ALPHA)        ff_blockdsp_init_alpha(c);    if (ARCH_ARM)        ff_blockdsp_init_arm(c);    if (ARCH_PPC)        ff_blockdsp_init_ppc(c);    if (ARCH_X86)        ff_blockdsp_init_x86(c, avctx);    if (ARCH_MIPS)        ff_blockdsp_init_mips(c);}