164 lines
5.4 KiB
C
164 lines
5.4 KiB
C
/*
|
|
* MMI optimized DSP utils
|
|
* Copyright (c) 2000, 2001 Fabrice Bellard.
|
|
*
|
|
* MMI optimization by Leon van Stuivenberg
|
|
* clear_blocks_mmi() by BroadQ
|
|
*
|
|
* 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 "dsputil.h"
|
|
#include "mmi.h"
|
|
|
|
void ff_mmi_idct_put(uint8_t *dest, int line_size, DCTELEM *block);
|
|
void ff_mmi_idct_add(uint8_t *dest, int line_size, DCTELEM *block);
|
|
void ff_mmi_idct(DCTELEM *block);
|
|
|
|
static void clear_blocks_mmi(DCTELEM * blocks)
|
|
{
|
|
asm volatile(
|
|
".set noreorder \n"
|
|
"addiu $9, %0, 768 \n"
|
|
"nop \n"
|
|
"1: \n"
|
|
"sq $0, 0(%0) \n"
|
|
"move $8, %0 \n"
|
|
"addi %0, %0, 64 \n"
|
|
"sq $0, 16($8) \n"
|
|
"slt $10, %0, $9 \n"
|
|
"sq $0, 32($8) \n"
|
|
"bnez $10, 1b \n"
|
|
"sq $0, 48($8) \n"
|
|
".set reorder \n"
|
|
: "+r" (blocks) :: "$8", "$9", "memory" );
|
|
}
|
|
|
|
|
|
static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size)
|
|
{
|
|
asm volatile(
|
|
".set push \n\t"
|
|
".set mips3 \n\t"
|
|
"ld $8, 0(%0) \n\t"
|
|
"add %0, %0, %2 \n\t"
|
|
"ld $9, 0(%0) \n\t"
|
|
"add %0, %0, %2 \n\t"
|
|
"ld $10, 0(%0) \n\t"
|
|
"pextlb $8, $0, $8 \n\t"
|
|
"sq $8, 0(%1) \n\t"
|
|
"add %0, %0, %2 \n\t"
|
|
"ld $8, 0(%0) \n\t"
|
|
"pextlb $9, $0, $9 \n\t"
|
|
"sq $9, 16(%1) \n\t"
|
|
"add %0, %0, %2 \n\t"
|
|
"ld $9, 0(%0) \n\t"
|
|
"pextlb $10, $0, $10 \n\t"
|
|
"sq $10, 32(%1) \n\t"
|
|
"add %0, %0, %2 \n\t"
|
|
"ld $10, 0(%0) \n\t"
|
|
"pextlb $8, $0, $8 \n\t"
|
|
"sq $8, 48(%1) \n\t"
|
|
"add %0, %0, %2 \n\t"
|
|
"ld $8, 0(%0) \n\t"
|
|
"pextlb $9, $0, $9 \n\t"
|
|
"sq $9, 64(%1) \n\t"
|
|
"add %0, %0, %2 \n\t"
|
|
"ld $9, 0(%0) \n\t"
|
|
"pextlb $10, $0, $10 \n\t"
|
|
"sq $10, 80(%1) \n\t"
|
|
"pextlb $8, $0, $8 \n\t"
|
|
"sq $8, 96(%1) \n\t"
|
|
"pextlb $9, $0, $9 \n\t"
|
|
"sq $9, 112(%1) \n\t"
|
|
".set pop \n\t"
|
|
: "+r" (pixels) : "r" (block), "r" (line_size) : "$8", "$9", "$10", "memory" );
|
|
}
|
|
|
|
|
|
static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
|
|
{
|
|
asm volatile(
|
|
".set push \n\t"
|
|
".set mips3 \n\t"
|
|
"1: \n\t"
|
|
"ldr $8, 0(%1) \n\t"
|
|
"addiu %2, %2, -1 \n\t"
|
|
"ldl $8, 7(%1) \n\t"
|
|
"add %1, %1, %3 \n\t"
|
|
"sd $8, 0(%0) \n\t"
|
|
"add %0, %0, %3 \n\t"
|
|
"bgtz %2, 1b \n\t"
|
|
".set pop \n\t"
|
|
: "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size)
|
|
: "$8", "memory" );
|
|
}
|
|
|
|
|
|
static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
|
|
{
|
|
asm volatile (
|
|
".set push \n\t"
|
|
".set mips3 \n\t"
|
|
"1: \n\t"
|
|
"ldr $8, 0(%1) \n\t"
|
|
"add $11, %1, %3 \n\t"
|
|
"ldl $8, 7(%1) \n\t"
|
|
"add $10, %0, %3 \n\t"
|
|
"ldr $9, 8(%1) \n\t"
|
|
"ldl $9, 15(%1) \n\t"
|
|
"ldr $12, 0($11) \n\t"
|
|
"add %1, $11, %3 \n\t"
|
|
"ldl $12, 7($11) \n\t"
|
|
"pcpyld $8, $9, $8 \n\t"
|
|
"sq $8, 0(%0) \n\t"
|
|
"ldr $13, 8($11) \n\t"
|
|
"addiu %2, %2, -2 \n\t"
|
|
"ldl $13, 15($11) \n\t"
|
|
"add %0, $10, %3 \n\t"
|
|
"pcpyld $12, $13, $12 \n\t"
|
|
"sq $12, 0($10) \n\t"
|
|
"bgtz %2, 1b \n\t"
|
|
".set pop \n\t"
|
|
: "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size)
|
|
: "$8", "$9", "$10", "$11", "$12", "$13", "memory" );
|
|
}
|
|
|
|
|
|
void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx)
|
|
{
|
|
const int idct_algo= avctx->idct_algo;
|
|
|
|
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;
|
|
|
|
if(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_PS2){
|
|
c->idct_put= ff_mmi_idct_put;
|
|
c->idct_add= ff_mmi_idct_add;
|
|
c->idct = ff_mmi_idct;
|
|
c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;
|
|
}
|
|
}
|
|
|