yading@10: /*
yading@10:  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include <string.h>
yading@10: 
yading@10: #include "libavutil/attributes.h"
yading@10: #include "libavcodec/avcodec.h"
yading@10: #include "libavcodec/vp3dsp.h"
yading@10: #include "libavcodec/dsputil.h"
yading@10: #include "dsputil_bfin.h"
yading@10: #include "vp3_bfin.h"
yading@10: 
yading@10: /* Intra iDCT offset 128 */
yading@10: static void bfin_vp3_idct_put(uint8_t *dest, int line_size, int16_t *block)
yading@10: {
yading@10:     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP + 128;
yading@10:     int i,j;
yading@10: 
yading@10:     ff_bfin_vp3_idct (block);
yading@10: 
yading@10:     for (i=0;i<8;i++)
yading@10:         for (j=0;j<8;j++)
yading@10:             dest[line_size*i + j] = cm[block[j*8 + i]];
yading@10: 
yading@10:     memset(block, 0, 128);
yading@10: }
yading@10: 
yading@10: /* Inter iDCT */
yading@10: static void bfin_vp3_idct_add(uint8_t *dest, int line_size, int16_t *block)
yading@10: {
yading@10:     const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
yading@10:     int i, j;
yading@10: 
yading@10:     ff_bfin_vp3_idct (block);
yading@10:     for (i = 0; i < 8; i++)
yading@10:         for (j = 0; j < 8; j++)
yading@10:             dest[line_size*i + j] = cm[dest[line_size*i + j] + block[j*8 + i]];
yading@10: 
yading@10:     memset(block, 0, 128);
yading@10: }
yading@10: 
yading@10: av_cold void ff_vp3dsp_init_bfin(VP3DSPContext *c, int flags)
yading@10: {
yading@10:     if (!(flags & CODEC_FLAG_BITEXACT)) {
yading@10:         c->idct_add = bfin_vp3_idct_add;
yading@10:         c->idct_put = bfin_vp3_idct_put;
yading@10:     }
yading@10: }