533 lines
11 KiB
C
533 lines
11 KiB
C
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* This program is free software ; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 2 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program 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 General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
|
*
|
||
|
|
* $Id: idct_c.c 323 2005-11-01 20:52:32Z picard $
|
||
|
|
*
|
||
|
|
* The Core Pocket Media Player
|
||
|
|
* Copyright (c) 2004-2005 Gabor Kovacs
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#include "../common.h"
|
||
|
|
#include "softidct.h"
|
||
|
|
|
||
|
|
#define W1 2841 // 2048*sqrt(2)*cos(1*pi/16)
|
||
|
|
#define W2 2676 // 2048*sqrt(2)*cos(2*pi/16)
|
||
|
|
#define W3 2408 // 2048*sqrt(2)*cos(3*pi/16)
|
||
|
|
#define W5 1609 // 2048*sqrt(2)*cos(5*pi/16)
|
||
|
|
#define W6 1108 // 2048*sqrt(2)*cos(6*pi/16)
|
||
|
|
#define W7 565 // 2048*sqrt(2)*cos(7*pi/16)
|
||
|
|
|
||
|
|
#define ADDSAT32(a,Dst,Add32) \
|
||
|
|
b = a + Add32; \
|
||
|
|
c = a & Add32; \
|
||
|
|
a ^= Add32; \
|
||
|
|
a &= ~b; \
|
||
|
|
a |= c; \
|
||
|
|
a &= MaskCarry; \
|
||
|
|
c = a << 1; \
|
||
|
|
b -= c; /* adjust neighbour */ \
|
||
|
|
b |= c - (a >> 7); /* mask */ \
|
||
|
|
Dst = b;
|
||
|
|
|
||
|
|
#define SUBSAT32(a,Dst,Add32) \
|
||
|
|
a = ~a; \
|
||
|
|
b = a + Add32; \
|
||
|
|
c = a & Add32; \
|
||
|
|
a ^= Add32; \
|
||
|
|
a &= ~b; \
|
||
|
|
a |= c; \
|
||
|
|
a &= MaskCarry; \
|
||
|
|
c = a << 1; \
|
||
|
|
b -= c; /* adjust neighbour */ \
|
||
|
|
b |= c - (a >> 7); /* mask */ \
|
||
|
|
Dst = ~b;
|
||
|
|
|
||
|
|
#if !defined(ARM)
|
||
|
|
|
||
|
|
#define SPLIT(d0,d1,d2) \
|
||
|
|
d0 = d1 + d2; \
|
||
|
|
d1 -= d2;
|
||
|
|
|
||
|
|
#define BUTTERFLY(d0,d1,W0,W1,tmp) \
|
||
|
|
tmp = W0 * (d0 + d1); \
|
||
|
|
d0 = tmp + (W1 - W0) * d0; \
|
||
|
|
d1 = tmp - (W1 + W0) * d1;
|
||
|
|
|
||
|
|
#ifdef MIPSVR41XX
|
||
|
|
#define WRITEBACK(Dst,n) \
|
||
|
|
__asm( "andi $7,%0,0x8;" \
|
||
|
|
"beq $7,$0, skipwb" #n ";" \
|
||
|
|
".set noreorder;" \
|
||
|
|
"cache 25,-8(%0);" \
|
||
|
|
".set reorder;" \
|
||
|
|
"skipwb" #n ":",Dst);
|
||
|
|
#else
|
||
|
|
#define WRITEBACK(Dst,n)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
static void IDCT_Col8(idct_block_t *Blk)
|
||
|
|
{
|
||
|
|
int d0,d1,d2,d3,d4,d5,d6,d7,d8;
|
||
|
|
|
||
|
|
d0 = Blk[0];
|
||
|
|
d4 = Blk[8];
|
||
|
|
d3 = Blk[16];
|
||
|
|
d7 = Blk[24];
|
||
|
|
d1 = Blk[32];
|
||
|
|
d6 = Blk[40];
|
||
|
|
d2 = Blk[48];
|
||
|
|
d5 = Blk[56];
|
||
|
|
|
||
|
|
d8 = d5|d6|d7;
|
||
|
|
if (!(d1|d2|d3|d8))
|
||
|
|
{
|
||
|
|
if (!d4)
|
||
|
|
{
|
||
|
|
// d0
|
||
|
|
if (d0)
|
||
|
|
{
|
||
|
|
d0 <<= 3;
|
||
|
|
Blk[0] = (idct_block_t)d0;
|
||
|
|
Blk[8] = (idct_block_t)d0;
|
||
|
|
Blk[16] = (idct_block_t)d0;
|
||
|
|
Blk[24] = (idct_block_t)d0;
|
||
|
|
Blk[32] = (idct_block_t)d0;
|
||
|
|
Blk[40] = (idct_block_t)d0;
|
||
|
|
Blk[48] = (idct_block_t)d0;
|
||
|
|
Blk[56] = (idct_block_t)d0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// d0,d4
|
||
|
|
d0 = (d0 << 11) + 128; //+final rounding
|
||
|
|
//d1 = (d1 << 11);
|
||
|
|
|
||
|
|
d1 = W7 * d4;
|
||
|
|
d2 = W1 * d4;
|
||
|
|
d3 = W3 * d4;
|
||
|
|
d4 = W5 * d4;
|
||
|
|
|
||
|
|
Blk[0] = (idct_block_t)((d0 + d2) >> 8);
|
||
|
|
Blk[8] = (idct_block_t)((d0 + d3) >> 8);
|
||
|
|
Blk[16] = (idct_block_t)((d0 + d4) >> 8);
|
||
|
|
Blk[24] = (idct_block_t)((d0 + d1) >> 8);
|
||
|
|
Blk[32] = (idct_block_t)((d0 - d1) >> 8);
|
||
|
|
Blk[40] = (idct_block_t)((d0 - d4) >> 8);
|
||
|
|
Blk[48] = (idct_block_t)((d0 - d3) >> 8);
|
||
|
|
Blk[56] = (idct_block_t)((d0 - d2) >> 8);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (!(d4|d8))
|
||
|
|
{
|
||
|
|
// d0,d1,d2,d3
|
||
|
|
|
||
|
|
d0 = (d0 << 11) + 128; //+final rounding
|
||
|
|
d1 = (d1 << 11);
|
||
|
|
|
||
|
|
SPLIT(d4,d0,d1) //d1->d4
|
||
|
|
BUTTERFLY(d3,d2,W6,W2,d1)
|
||
|
|
SPLIT(d5,d4,d3) //d3->d5
|
||
|
|
SPLIT(d3,d0,d2) //d2->d3
|
||
|
|
|
||
|
|
Blk[0] = (idct_block_t)(d5 >> 8);
|
||
|
|
Blk[8] = (idct_block_t)(d3 >> 8);
|
||
|
|
Blk[16] = (idct_block_t)(d0 >> 8);
|
||
|
|
Blk[24] = (idct_block_t)(d4 >> 8);
|
||
|
|
Blk[32] = (idct_block_t)(d4 >> 8);
|
||
|
|
Blk[40] = (idct_block_t)(d0 >> 8);
|
||
|
|
Blk[48] = (idct_block_t)(d3 >> 8);
|
||
|
|
Blk[56] = (idct_block_t)(d5 >> 8);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// d0,d1,d2,d3,d4,d5,d6,d7
|
||
|
|
|
||
|
|
d0 = (d0 << 11) + 128; //+final rounding
|
||
|
|
d1 = (d1 << 11);
|
||
|
|
|
||
|
|
BUTTERFLY(d4,d5,W7,W1,d8)
|
||
|
|
BUTTERFLY(d6,d7,W3,W5,d8)
|
||
|
|
|
||
|
|
SPLIT(d8,d0,d1) //d1->d8
|
||
|
|
BUTTERFLY(d3,d2,W6,W2,d1)
|
||
|
|
SPLIT(d1,d4,d6) //d6->d1
|
||
|
|
SPLIT(d6,d5,d7) //d7->d6
|
||
|
|
SPLIT(d7,d8,d3) //d3->d7
|
||
|
|
SPLIT(d3,d0,d2) //d2->d3
|
||
|
|
|
||
|
|
d2 = (181 * (d4+d5) + 128) >> 8;
|
||
|
|
d4 = (181 * (d4-d5) + 128) >> 8;
|
||
|
|
|
||
|
|
Blk[0] = (idct_block_t)((d7 + d1) >> 8);
|
||
|
|
Blk[8] = (idct_block_t)((d3 + d2) >> 8);
|
||
|
|
Blk[16] = (idct_block_t)((d0 + d4) >> 8);
|
||
|
|
Blk[24] = (idct_block_t)((d8 + d6) >> 8);
|
||
|
|
Blk[32] = (idct_block_t)((d8 - d6) >> 8);
|
||
|
|
Blk[40] = (idct_block_t)((d0 - d4) >> 8);
|
||
|
|
Blk[48] = (idct_block_t)((d3 - d2) >> 8);
|
||
|
|
Blk[56] = (idct_block_t)((d7 - d1) >> 8);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void IDCT_Row8(idct_block_t *Blk, uint8_t *Dst, const uint8_t *Src)
|
||
|
|
{
|
||
|
|
int d0,d1,d2,d3,d4,d5,d6,d7,d8;
|
||
|
|
|
||
|
|
d4 = Blk[1];
|
||
|
|
d3 = Blk[2];
|
||
|
|
d7 = Blk[3];
|
||
|
|
d1 = Blk[4];
|
||
|
|
d6 = Blk[5];
|
||
|
|
d2 = Blk[6];
|
||
|
|
d5 = Blk[7];
|
||
|
|
|
||
|
|
if (!(d1|d2|d3|d4|d5|d6|d7))
|
||
|
|
{
|
||
|
|
d0 = (Blk[0] + 32) >> 6;
|
||
|
|
if (!Src)
|
||
|
|
{
|
||
|
|
SAT(d0);
|
||
|
|
|
||
|
|
d0 &= 255;
|
||
|
|
d0 |= d0 << 8;
|
||
|
|
d0 |= d0 << 16;
|
||
|
|
|
||
|
|
((uint32_t*)Dst)[0] = d0;
|
||
|
|
((uint32_t*)Dst)[1] = d0;
|
||
|
|
WRITEBACK(Dst,0);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
d1 = d2 = d3 = d4 = d5 = d6 = d7 = d0;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
d0 = (Blk[0] << 11) + 65536; // +final rounding
|
||
|
|
d1 <<= 11;
|
||
|
|
|
||
|
|
BUTTERFLY(d4,d5,W7,W1,d8)
|
||
|
|
BUTTERFLY(d6,d7,W3,W5,d8)
|
||
|
|
|
||
|
|
SPLIT(d8,d0,d1) //d1->d8
|
||
|
|
BUTTERFLY(d3,d2,W6,W2,d1)
|
||
|
|
SPLIT(d1,d4,d6) //d6->d1
|
||
|
|
SPLIT(d6,d5,d7) //d7->d6
|
||
|
|
SPLIT(d7,d8,d3) //d3->d7
|
||
|
|
SPLIT(d3,d0,d2) //d2->d3
|
||
|
|
|
||
|
|
d2 = 181 * ((d4 + d5 + 128) >> 8);
|
||
|
|
d4 = 181 * ((d4 - d5 + 128) >> 8);
|
||
|
|
|
||
|
|
d5 = (d7 + d1) >> 17;
|
||
|
|
d1 = (d7 - d1) >> 17;
|
||
|
|
d7 = (d3 + d2) >> 17;
|
||
|
|
d2 = (d3 - d2) >> 17;
|
||
|
|
d3 = (d0 + d4) >> 17;
|
||
|
|
d4 = (d0 - d4) >> 17;
|
||
|
|
d0 = (d8 + d6) >> 17;
|
||
|
|
d6 = (d8 - d6) >> 17;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Src)
|
||
|
|
{
|
||
|
|
d5 += Src[0];
|
||
|
|
d1 += Src[7];
|
||
|
|
d7 += Src[1];
|
||
|
|
d2 += Src[6];
|
||
|
|
d3 += Src[2];
|
||
|
|
d4 += Src[5];
|
||
|
|
d0 += Src[3];
|
||
|
|
d6 += Src[4];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((d5|d1|d7|d2|d3|d4|d0|d6)>>8)
|
||
|
|
{
|
||
|
|
SAT(d5)
|
||
|
|
SAT(d7)
|
||
|
|
SAT(d3)
|
||
|
|
SAT(d0)
|
||
|
|
SAT(d6)
|
||
|
|
SAT(d4)
|
||
|
|
SAT(d2)
|
||
|
|
SAT(d1)
|
||
|
|
}
|
||
|
|
|
||
|
|
Dst[0] = (uint8_t)d5;
|
||
|
|
Dst[1] = (uint8_t)d7;
|
||
|
|
Dst[2] = (uint8_t)d3;
|
||
|
|
Dst[3] = (uint8_t)d0;
|
||
|
|
Dst[4] = (uint8_t)d6;
|
||
|
|
Dst[5] = (uint8_t)d4;
|
||
|
|
Dst[6] = (uint8_t)d2;
|
||
|
|
Dst[7] = (uint8_t)d1;
|
||
|
|
WRITEBACK(Dst,1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void IDCT_Row4(idct_block_t *Blk, uint8_t *Dst, const uint8_t *Src)
|
||
|
|
{
|
||
|
|
int d0,d1,d2,d3,d4,d5,d6,d7,d8;
|
||
|
|
|
||
|
|
d4 = Blk[1];
|
||
|
|
d3 = Blk[2];
|
||
|
|
d7 = Blk[3];
|
||
|
|
|
||
|
|
if (!(d3|d4|d7))
|
||
|
|
{
|
||
|
|
d0 = (Blk[0] + 32) >> 6;
|
||
|
|
if (!Src)
|
||
|
|
{
|
||
|
|
SAT(d0);
|
||
|
|
|
||
|
|
d0 &= 255;
|
||
|
|
d0 |= d0 << 8;
|
||
|
|
d0 |= d0 << 16;
|
||
|
|
|
||
|
|
((uint32_t*)Dst)[0] = d0;
|
||
|
|
((uint32_t*)Dst)[1] = d0;
|
||
|
|
WRITEBACK(Dst,2);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
d1 = d2 = d3 = d4 = d5 = d6 = d7 = d0;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
d0 = (Blk[0] << 11) + 65536; // +final rounding
|
||
|
|
|
||
|
|
d5 = W7 * d4;
|
||
|
|
d4 = W1 * d4;
|
||
|
|
d6 = W3 * d7;
|
||
|
|
d7 = -W5 * d7;
|
||
|
|
d2 = W6 * d3;
|
||
|
|
d3 = W2 * d3;
|
||
|
|
|
||
|
|
SPLIT(d1,d4,d6)
|
||
|
|
SPLIT(d6,d5,d7)
|
||
|
|
|
||
|
|
d8 = d0;
|
||
|
|
SPLIT(d7,d8,d3)
|
||
|
|
SPLIT(d3,d0,d2)
|
||
|
|
|
||
|
|
d2 = 181 * ((d4 + d5 + 128) >> 8);
|
||
|
|
d4 = 181 * ((d4 - d5 + 128) >> 8);
|
||
|
|
|
||
|
|
d5 = (d7 + d1) >> 17;
|
||
|
|
d1 = (d7 - d1) >> 17;
|
||
|
|
d7 = (d3 + d2) >> 17;
|
||
|
|
d2 = (d3 - d2) >> 17;
|
||
|
|
d3 = (d0 + d4) >> 17;
|
||
|
|
d4 = (d0 - d4) >> 17;
|
||
|
|
d0 = (d8 + d6) >> 17;
|
||
|
|
d6 = (d8 - d6) >> 17;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Src)
|
||
|
|
{
|
||
|
|
d5 += Src[0];
|
||
|
|
d1 += Src[7];
|
||
|
|
d7 += Src[1];
|
||
|
|
d2 += Src[6];
|
||
|
|
d3 += Src[2];
|
||
|
|
d4 += Src[5];
|
||
|
|
d0 += Src[3];
|
||
|
|
d6 += Src[4];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((d5|d1|d7|d2|d3|d4|d0|d6)>>8)
|
||
|
|
{
|
||
|
|
SAT(d5)
|
||
|
|
SAT(d7)
|
||
|
|
SAT(d3)
|
||
|
|
SAT(d0)
|
||
|
|
SAT(d6)
|
||
|
|
SAT(d4)
|
||
|
|
SAT(d2)
|
||
|
|
SAT(d1)
|
||
|
|
}
|
||
|
|
|
||
|
|
Dst[0] = (uint8_t)d5;
|
||
|
|
Dst[1] = (uint8_t)d7;
|
||
|
|
Dst[2] = (uint8_t)d3;
|
||
|
|
Dst[3] = (uint8_t)d0;
|
||
|
|
Dst[4] = (uint8_t)d6;
|
||
|
|
Dst[5] = (uint8_t)d4;
|
||
|
|
Dst[6] = (uint8_t)d2;
|
||
|
|
Dst[7] = (uint8_t)d1;
|
||
|
|
WRITEBACK(Dst,3);
|
||
|
|
}
|
||
|
|
|
||
|
|
void STDCALL IDCT_Block8x8(idct_block_t *Block, uint8_t *Dest, int DestStride, const uint8_t *Src)
|
||
|
|
{
|
||
|
|
int SrcStride;
|
||
|
|
|
||
|
|
IDCT_Col8(Block);
|
||
|
|
IDCT_Col8(Block+1);
|
||
|
|
IDCT_Col8(Block+2);
|
||
|
|
IDCT_Col8(Block+3);
|
||
|
|
IDCT_Col8(Block+4);
|
||
|
|
IDCT_Col8(Block+5);
|
||
|
|
IDCT_Col8(Block+6);
|
||
|
|
IDCT_Col8(Block+7);
|
||
|
|
|
||
|
|
SrcStride = 0;
|
||
|
|
#ifdef MIPS64
|
||
|
|
if (Src) SrcStride = DestStride;
|
||
|
|
#else
|
||
|
|
if (Src) SrcStride = 8;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
IDCT_Row8(Block,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row8(Block+8,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row8(Block+16,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row8(Block+24,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row8(Block+32,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row8(Block+40,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row8(Block+48,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row8(Block+56,Dest,Src);
|
||
|
|
}
|
||
|
|
|
||
|
|
void STDCALL IDCT_Block4x8(idct_block_t *Block, uint8_t *Dest, int DestStride, const uint8_t *Src)
|
||
|
|
{
|
||
|
|
int SrcStride;
|
||
|
|
|
||
|
|
IDCT_Col8(Block);
|
||
|
|
IDCT_Col8(Block+1);
|
||
|
|
IDCT_Col8(Block+2);
|
||
|
|
IDCT_Col8(Block+3);
|
||
|
|
|
||
|
|
SrcStride = 0;
|
||
|
|
#ifdef MIPS64
|
||
|
|
if (Src) SrcStride = DestStride;
|
||
|
|
#else
|
||
|
|
if (Src) SrcStride = 8;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
IDCT_Row4(Block,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row4(Block+8,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row4(Block+16,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row4(Block+24,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row4(Block+32,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row4(Block+40,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row4(Block+48,Dest,Src);
|
||
|
|
Dest+=DestStride;
|
||
|
|
Src+=SrcStride;
|
||
|
|
IDCT_Row4(Block+56,Dest,Src);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_IDCT_SWAP
|
||
|
|
// just for testing
|
||
|
|
void STDCALL IDCT_Block4x8Swap(idct_block_t *Block, uint8_t *Dest, int DestStride, const uint8_t *Src)
|
||
|
|
{
|
||
|
|
int x;
|
||
|
|
for (x=0;x<64;++x)
|
||
|
|
Block[64+x] = Block[((x&7)<<3)+(x>>3)];
|
||
|
|
|
||
|
|
IDCT_Block4x8(Block+64,Dest,DestStride,Src);
|
||
|
|
}
|
||
|
|
void STDCALL IDCT_Block8x8Swap(idct_block_t *Block, uint8_t *Dest, int DestStride, const uint8_t *Src)
|
||
|
|
{
|
||
|
|
int x;
|
||
|
|
for (x=0;x<64;++x)
|
||
|
|
Block[64+x] = Block[((x&7)<<3)+(x>>3)];
|
||
|
|
|
||
|
|
IDCT_Block8x8(Block+64,Dest,DestStride,Src);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef MMX
|
||
|
|
|
||
|
|
void STDCALL IDCT_Const8x8(int v,uint8_t * Dst, int DstPitch, uint8_t * Src)
|
||
|
|
{
|
||
|
|
#ifndef MIPS64
|
||
|
|
int SrcPitch = 8;
|
||
|
|
#else
|
||
|
|
int SrcPitch = DstPitch;
|
||
|
|
#endif
|
||
|
|
const uint8_t* SrcEnd = Src + 8*SrcPitch;
|
||
|
|
uint32_t MaskCarry = 0x80808080U;
|
||
|
|
uint32_t a,b,c,d;
|
||
|
|
|
||
|
|
if (v>0)
|
||
|
|
{
|
||
|
|
v |= v << 8;
|
||
|
|
v |= v << 16;
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
a = ((uint32_t*)Src)[0];
|
||
|
|
d = ((uint32_t*)Src)[1];
|
||
|
|
ADDSAT32(a,((uint32_t*)Dst)[0],v);
|
||
|
|
ADDSAT32(d,((uint32_t*)Dst)[1],v);
|
||
|
|
Dst += DstPitch;
|
||
|
|
Src += SrcPitch;
|
||
|
|
}
|
||
|
|
while (Src != SrcEnd);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
if (v<0)
|
||
|
|
{
|
||
|
|
v = -v;
|
||
|
|
v |= v << 8;
|
||
|
|
v |= v << 16;
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
a = ((uint32_t*)Src)[0];
|
||
|
|
d = ((uint32_t*)Src)[1];
|
||
|
|
SUBSAT32(a,((uint32_t*)Dst)[0],v);
|
||
|
|
SUBSAT32(d,((uint32_t*)Dst)[1],v);
|
||
|
|
Dst += DstPitch;
|
||
|
|
Src += SrcPitch;
|
||
|
|
}
|
||
|
|
while (Src != SrcEnd);
|
||
|
|
}
|
||
|
|
#ifndef MIPS64
|
||
|
|
else
|
||
|
|
CopyBlock8x8(Src,Dst,SrcPitch,DstPitch);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|