ffmpeg/libavcodec/sh4/dsputil_sh4.c
Michael Niedermayer ac8987591f Merge commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f'
* commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f':
  Drop DCTELEM typedef

Conflicts:
	libavcodec/alpha/dsputil_alpha.h
	libavcodec/alpha/motion_est_alpha.c
	libavcodec/arm/dsputil_init_armv6.c
	libavcodec/bfin/dsputil_bfin.h
	libavcodec/bfin/pixels_bfin.S
	libavcodec/cavs.c
	libavcodec/cavsdec.c
	libavcodec/dct-test.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.c
	libavcodec/dsputil.h
	libavcodec/dsputil_template.c
	libavcodec/eamad.c
	libavcodec/h264_cavlc.c
	libavcodec/h264idct_template.c
	libavcodec/mpeg12.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
	libavcodec/ppc/dsputil_altivec.c
	libavcodec/proresdsp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-23 17:44:56 +01:00

108 lines
3.3 KiB
C

/*
* sh4 dsputil
*
* Copyright (c) 2003 BERO <bero@geocities.co.jp>
*
* 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 "libavcodec/avcodec.h"
#include "libavcodec/dsputil.h"
#include "dsputil_sh4.h"
#include "sh4.h"
static void memzero_align8(void *dst,size_t size)
{
int fpscr;
fp_single_enter(fpscr);
dst = (char *)dst + size;
size /= 32;
__asm__ volatile (
" fldi0 fr0\n"
" fldi0 fr1\n"
" fschg\n" // double
"1: \n" \
" dt %1\n"
" fmov dr0,@-%0\n"
" fmov dr0,@-%0\n"
" fmov dr0,@-%0\n"
" bf.s 1b\n"
" fmov dr0,@-%0\n"
" fschg" //back to single
: "+r"(dst),"+r"(size) :: "memory" );
fp_single_leave(fpscr);
}
static void clear_blocks_sh4(int16_t *blocks)
{
memzero_align8(blocks,sizeof(int16_t)*6*64);
}
static void idct_put(uint8_t *dest, int line_size, int16_t *block)
{
int i;
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
ff_idct_sh4(block);
for(i=0;i<8;i++) {
dest[0] = cm[block[0]];
dest[1] = cm[block[1]];
dest[2] = cm[block[2]];
dest[3] = cm[block[3]];
dest[4] = cm[block[4]];
dest[5] = cm[block[5]];
dest[6] = cm[block[6]];
dest[7] = cm[block[7]];
dest+=line_size;
block+=8;
}
}
static void idct_add(uint8_t *dest, int line_size, int16_t *block)
{
int i;
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
ff_idct_sh4(block);
for(i=0;i<8;i++) {
dest[0] = cm[dest[0]+block[0]];
dest[1] = cm[dest[1]+block[1]];
dest[2] = cm[dest[2]+block[2]];
dest[3] = cm[dest[3]+block[3]];
dest[4] = cm[dest[4]+block[4]];
dest[5] = cm[dest[5]+block[5]];
dest[6] = cm[dest[6]+block[6]];
dest[7] = cm[dest[7]+block[7]];
dest+=line_size;
block+=8;
}
}
void ff_dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx)
{
const int idct_algo= avctx->idct_algo;
const int high_bit_depth = avctx->bits_per_raw_sample > 8;
ff_dsputil_init_align(c,avctx);
if (!high_bit_depth)
c->clear_blocks = clear_blocks_sh4;
if (avctx->bits_per_raw_sample <= 8 &&
(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_SH4)) {
c->idct_put = idct_put;
c->idct_add = idct_add;
c->idct = ff_idct_sh4;
c->idct_permutation_type= FF_NO_IDCT_PERM;
}
}