aboutsummaryrefslogblamecommitdiffstats
path: root/libavcodec/blockdsp.c
blob: c7efe7e77b061380348f5faadc25bb1ad4ae7776 (plain) (tree)
1
2
3
4
5
6
7
8
9
  
                               
  
                                                          


                                                                     
                                                            



                                                                    
                                                                










                                                                               
                                         


                                           
                                           


                                                
                                                                              







                                 
                                                                             









                                                                        
                                     


                                          
                   
                                  
                 
                                
                 
                                
                 
                                       
                  
                                 
 
/*
 * 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);
}