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/*
* BlackFin DSPUTILS
*
* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
* Copyright (c) 2006 Michael Benjamin <michael.benjamin@analog.com>
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/dsputil.h"
#include "dsputil_bfin.h"
static void bfin_idct_add (uint8_t *dest, int line_size, int16_t *block)
{
ff_bfin_idct (block);
ff_bfin_add_pixels_clamped (block, dest, line_size);
}
static void bfin_idct_put (uint8_t *dest, int line_size, int16_t *block)
{
ff_bfin_idct (block);
ff_bfin_put_pixels_clamped (block, dest, line_size);
}
static void bfin_clear_blocks (int16_t *blocks)
{
// This is just a simple memset.
//
__asm__("P0=192; "
"I0=%0; "
"R0=0; "
"LSETUP(clear_blocks_blkfn_lab,clear_blocks_blkfn_lab)LC0=P0;"
"clear_blocks_blkfn_lab:"
"[I0++]=R0;"
::"a" (blocks):"P0","I0","R0");
}
static int bfin_pix_abs16 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
{
return ff_bfin_z_sad16x16 (blk1,blk2,line_size,line_size,h);
}
static int bfin_vsad_intra16 (void *c, uint8_t *blk1, uint8_t *dummy, int stride, int h) {
return ff_bfin_z_sad16x16 (blk1,blk1+stride,stride<<1,stride<<1,h);
}
static int bfin_vsad (void *c, uint8_t *blk1, uint8_t *blk2, int stride, int h) {
return ff_bfin_z_sad16x16 (blk1,blk1+stride,stride<<1,stride<<1,h)
+ ff_bfin_z_sad16x16 (blk2,blk2+stride,stride<<1,stride<<1,h);
}
static uint8_t vtmp_blk[256] attribute_l1_data_b;
static int bfin_pix_abs16_x2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
{
ff_bfin_put_pixels16uc (vtmp_blk, blk2, blk2+1, 16, line_size, h);
return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
}
static int bfin_pix_abs16_y2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
{
ff_bfin_put_pixels16uc (vtmp_blk, blk2, blk2+line_size, 16, line_size, h);
return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
}
static int bfin_pix_abs16_xy2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
{
ff_bfin_z_put_pixels16_xy2 (vtmp_blk, blk2, 16, line_size, h);
return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
}
static int bfin_pix_abs8 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
{
return ff_bfin_z_sad8x8 (blk1,blk2,line_size,line_size, h);
}
static int bfin_pix_abs8_x2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
{
ff_bfin_put_pixels8uc (vtmp_blk, blk2, blk2+1, 8, line_size, h);
return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
}
static int bfin_pix_abs8_y2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
{
ff_bfin_put_pixels8uc (vtmp_blk, blk2, blk2+line_size, 8, line_size, h);
return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
}
static int bfin_pix_abs8_xy2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
{
ff_bfin_z_put_pixels8_xy2 (vtmp_blk, blk2, 8, line_size, h);
return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
}
/*
decoder optimization
start on 2/11 100 frames of 352x240@25 compiled with no optimization -g debugging
9.824s ~ 2.44x off
6.360s ~ 1.58x off with -O2
5.740s ~ 1.43x off with idcts
2.64s 2/20 same sman.mp4 decode only
*/
av_cold void ff_dsputil_init_bfin(DSPContext *c, AVCodecContext *avctx)
{
const int high_bit_depth = avctx->bits_per_raw_sample > 8;
c->diff_pixels = ff_bfin_diff_pixels;
c->put_pixels_clamped = ff_bfin_put_pixels_clamped;
c->add_pixels_clamped = ff_bfin_add_pixels_clamped;
if (!high_bit_depth)
c->get_pixels = ff_bfin_get_pixels;
c->clear_blocks = bfin_clear_blocks;
c->pix_sum = ff_bfin_pix_sum;
c->pix_norm1 = ff_bfin_pix_norm1;
c->sad[0] = bfin_pix_abs16;
c->sad[1] = bfin_pix_abs8;
/* c->vsad[0] = bfin_vsad; */
/* c->vsad[4] = bfin_vsad_intra16; */
/* TODO [0] 16 [1] 8 */
c->pix_abs[0][0] = bfin_pix_abs16;
c->pix_abs[0][1] = bfin_pix_abs16_x2;
c->pix_abs[0][2] = bfin_pix_abs16_y2;
c->pix_abs[0][3] = bfin_pix_abs16_xy2;
c->pix_abs[1][0] = bfin_pix_abs8;
c->pix_abs[1][1] = bfin_pix_abs8_x2;
c->pix_abs[1][2] = bfin_pix_abs8_y2;
c->pix_abs[1][3] = bfin_pix_abs8_xy2;
c->sse[0] = ff_bfin_sse16;
c->sse[1] = ff_bfin_sse8;
c->sse[2] = ff_bfin_sse4;
if (avctx->bits_per_raw_sample <= 8) {
if (avctx->dct_algo == FF_DCT_AUTO)
c->fdct = ff_bfin_fdct;
if (avctx->idct_algo == FF_IDCT_AUTO) {
c->idct_permutation_type = FF_NO_IDCT_PERM;
c->idct = ff_bfin_idct;
c->idct_add = bfin_idct_add;
c->idct_put = bfin_idct_put;
}
}
}
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