mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.5 KiB
118 lines
3.5 KiB
/* |
|
* MMI optimized DSP utils |
|
* Copyright (c) 2000, 2001 Fabrice Bellard. |
|
* |
|
* This library 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 of the License, or (at your option) any later version. |
|
* |
|
* This library 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 this library; if not, write to the Free Software |
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
* |
|
* MMI optimization by Leon van Stuivenberg <leonvs@iae.nl> |
|
*/ |
|
|
|
#include "../dsputil.h" |
|
#include "mmi.h" |
|
|
|
|
|
static void clear_blocks_mmi(DCTELEM * blocks) |
|
{ |
|
int i; |
|
for (i = 0; i < 6; i++) { |
|
asm volatile( |
|
"sq $0, 0(%0) \n\t" |
|
"sq $0, 16(%0) \n\t" |
|
"sq $0, 32(%0) \n\t" |
|
"sq $0, 48(%0) \n\t" |
|
"sq $0, 64(%0) \n\t" |
|
"sq $0, 80(%0) \n\t" |
|
"sq $0, 96(%0) \n\t" |
|
"sq $0, 112(%0) \n\t" :: "r" (blocks) : "memory" ); |
|
blocks += 64; |
|
} |
|
} |
|
|
|
|
|
static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size) |
|
{ |
|
int i; |
|
for(i=0;i<8;i++) { |
|
asm volatile( |
|
".set push \n\t" |
|
".set mips3 \n\t" |
|
"ld $8, 0(%1) \n\t" |
|
"add %1, %1, %2 \n\t" |
|
"pextlb $8, $0, $8 \n\t" |
|
"sq $8, 0(%0) \n\t" |
|
".set pop \n\t" |
|
:: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" ); |
|
block += 8; |
|
} |
|
} |
|
|
|
|
|
static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h) |
|
{ |
|
int i; |
|
for(i=0; i<h; i++) { |
|
asm volatile( |
|
".set push \n\t" |
|
".set mips3 \n\t" |
|
"ldr $8, 0(%1) \n\t" |
|
"ldl $8, 7(%1) \n\t" |
|
"add %1, %1, %2 \n\t" |
|
"sd $8, 0(%0) \n\t" |
|
"add %0, %0, %2 \n\t" |
|
".set pop \n\t" |
|
:: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" ); |
|
} |
|
} |
|
|
|
|
|
static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h) |
|
{ |
|
int i; |
|
for(i=0; i<(h>>2); i++) { |
|
asm volatile ( |
|
".set push \n\t" |
|
".set mips3 \n\t" |
|
#define PUTPIX16 \ |
|
"ldr $8, 0(%1) \n\t" \ |
|
"ldl $8, 7(%1) \n\t" \ |
|
"ldr $9, 8(%1) \n\t" \ |
|
"ldl $9, 15(%1) \n\t" \ |
|
"add %1, %1, %2 \n\t" \ |
|
"pcpyld $8, $9, $8 \n\t" \ |
|
"sq $8, 0(%0) \n\t" \ |
|
"add %0, %0, %2 \n\t" |
|
PUTPIX16 |
|
PUTPIX16 |
|
PUTPIX16 |
|
PUTPIX16 |
|
".set pop \n\t" |
|
:: "r" (block), "r" (pixels), "r" (line_size) : "$8", "$9", "memory" ); |
|
} |
|
} |
|
|
|
|
|
void dsputil_init_mmi(DSPContext* c, unsigned mask) |
|
{ |
|
c->clear_blocks = clear_blocks_mmi; |
|
|
|
c->put_pixels_tab[1][0] = put_pixels8_mmi; |
|
c->put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi; |
|
|
|
c->put_pixels_tab[0][0] = put_pixels16_mmi; |
|
c->put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi; |
|
|
|
c->get_pixels = get_pixels_mmi; |
|
} |
|
|
|
|