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.
286 lines
7.1 KiB
286 lines
7.1 KiB
/* |
|
* Alpha optimized DSP utils |
|
* Copyright (c) 2002 Falk Hueffner <falk@debian.org> |
|
* |
|
* 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
|
*/ |
|
|
|
/* |
|
* These functions are scheduled for pca56. They should work |
|
* reasonably on ev6, though. |
|
*/ |
|
|
|
#include "regdef.h" |
|
#ifdef HAVE_AV_CONFIG_H |
|
#include "config.h" |
|
#endif |
|
|
|
/* Some nicer register names. */ |
|
#define ta t10 |
|
#define tb t11 |
|
#define tc t12 |
|
#define td AT |
|
/* Danger: these overlap with the argument list and the return value */ |
|
#define te a5 |
|
#define tf a4 |
|
#define tg a3 |
|
#define th v0 |
|
|
|
.set noat |
|
.set noreorder |
|
.arch pca56 |
|
.text |
|
|
|
/************************************************************************ |
|
* void put_pixels_axp_asm(uint8_t *block, const uint8_t *pixels, |
|
* int line_size, int h) |
|
*/ |
|
.align 6 |
|
.globl put_pixels_axp_asm |
|
.ent put_pixels_axp_asm |
|
put_pixels_axp_asm: |
|
.frame sp, 0, ra |
|
.prologue 0 |
|
|
|
#ifdef HAVE_GPROF |
|
lda AT, _mcount |
|
jsr AT, (AT), _mcount |
|
#endif |
|
|
|
and a1, 7, t0 |
|
beq t0, $aligned |
|
|
|
.align 4 |
|
$unaligned: |
|
ldq_u t0, 0(a1) |
|
ldq_u t1, 8(a1) |
|
addq a1, a2, a1 |
|
nop |
|
|
|
ldq_u t2, 0(a1) |
|
ldq_u t3, 8(a1) |
|
addq a1, a2, a1 |
|
nop |
|
|
|
ldq_u t4, 0(a1) |
|
ldq_u t5, 8(a1) |
|
addq a1, a2, a1 |
|
nop |
|
|
|
ldq_u t6, 0(a1) |
|
ldq_u t7, 8(a1) |
|
extql t0, a1, t0 |
|
addq a1, a2, a1 |
|
|
|
extqh t1, a1, t1 |
|
addq a0, a2, t8 |
|
extql t2, a1, t2 |
|
addq t8, a2, t9 |
|
|
|
extqh t3, a1, t3 |
|
addq t9, a2, ta |
|
extql t4, a1, t4 |
|
or t0, t1, t0 |
|
|
|
extqh t5, a1, t5 |
|
or t2, t3, t2 |
|
extql t6, a1, t6 |
|
or t4, t5, t4 |
|
|
|
extqh t7, a1, t7 |
|
or t6, t7, t6 |
|
stq t0, 0(a0) |
|
stq t2, 0(t8) |
|
|
|
stq t4, 0(t9) |
|
subq a3, 4, a3 |
|
stq t6, 0(ta) |
|
addq ta, a2, a0 |
|
|
|
bne a3, $unaligned |
|
ret |
|
|
|
.align 4 |
|
$aligned: |
|
ldq t0, 0(a1) |
|
addq a1, a2, a1 |
|
ldq t1, 0(a1) |
|
addq a1, a2, a1 |
|
|
|
ldq t2, 0(a1) |
|
addq a1, a2, a1 |
|
ldq t3, 0(a1) |
|
|
|
addq a0, a2, t4 |
|
addq a1, a2, a1 |
|
addq t4, a2, t5 |
|
subq a3, 4, a3 |
|
|
|
stq t0, 0(a0) |
|
addq t5, a2, t6 |
|
stq t1, 0(t4) |
|
addq t6, a2, a0 |
|
|
|
stq t2, 0(t5) |
|
stq t3, 0(t6) |
|
|
|
bne a3, $aligned |
|
ret |
|
.end put_pixels_axp_asm |
|
|
|
/************************************************************************ |
|
* void put_pixels_clamped_mvi_asm(const DCTELEM *block, uint8_t *pixels, |
|
* int line_size) |
|
*/ |
|
.align 6 |
|
.globl put_pixels_clamped_mvi_asm |
|
.ent put_pixels_clamped_mvi_asm |
|
put_pixels_clamped_mvi_asm: |
|
.frame sp, 0, ra |
|
.prologue 0 |
|
|
|
#ifdef HAVE_GPROF |
|
lda AT, _mcount |
|
jsr AT, (AT), _mcount |
|
#endif |
|
|
|
lda t8, -1 |
|
lda t9, 8 # loop counter |
|
zap t8, 0xaa, t8 # 00ff00ff00ff00ff |
|
|
|
.align 4 |
|
1: ldq t0, 0(a0) |
|
ldq t1, 8(a0) |
|
ldq t2, 16(a0) |
|
ldq t3, 24(a0) |
|
|
|
maxsw4 t0, zero, t0 |
|
subq t9, 2, t9 |
|
maxsw4 t1, zero, t1 |
|
lda a0, 32(a0) |
|
|
|
maxsw4 t2, zero, t2 |
|
addq a1, a2, ta |
|
maxsw4 t3, zero, t3 |
|
minsw4 t0, t8, t0 |
|
|
|
minsw4 t1, t8, t1 |
|
minsw4 t2, t8, t2 |
|
minsw4 t3, t8, t3 |
|
pkwb t0, t0 |
|
|
|
pkwb t1, t1 |
|
pkwb t2, t2 |
|
pkwb t3, t3 |
|
stl t0, 0(a1) |
|
|
|
stl t1, 4(a1) |
|
addq ta, a2, a1 |
|
stl t2, 0(ta) |
|
stl t3, 4(ta) |
|
|
|
bne t9, 1b |
|
ret |
|
.end put_pixels_clamped_mvi_asm |
|
|
|
/************************************************************************ |
|
* void add_pixels_clamped_mvi_asm(const DCTELEM *block, uint8_t *pixels, |
|
* int line_size) |
|
*/ |
|
.align 6 |
|
.globl add_pixels_clamped_mvi_asm |
|
.ent add_pixels_clamped_mvi_asm |
|
add_pixels_clamped_mvi_asm: |
|
.frame sp, 0, ra |
|
.prologue 0 |
|
|
|
#ifdef HAVE_GPROF |
|
lda AT, _mcount |
|
jsr AT, (AT), _mcount |
|
#endif |
|
|
|
lda t1, -1 |
|
lda th, 8 |
|
zap t1, 0x33, tg |
|
nop |
|
|
|
srl tg, 1, t0 |
|
xor tg, t0, tg # 0x8000800080008000 |
|
zap t1, 0xaa, tf # 0x00ff00ff00ff00ff |
|
|
|
.align 4 |
|
1: ldl t1, 0(a1) # pix0 (try to hit cache line soon) |
|
ldl t4, 4(a1) # pix1 |
|
addq a1, a2, te # pixels += line_size |
|
ldq t0, 0(a0) # shorts0 |
|
|
|
ldl t7, 0(te) # pix2 (try to hit cache line soon) |
|
ldl ta, 4(te) # pix3 |
|
ldq t3, 8(a0) # shorts1 |
|
ldq t6, 16(a0) # shorts2 |
|
|
|
ldq t9, 24(a0) # shorts3 |
|
unpkbw t1, t1 # 0 0 (quarter/op no.) |
|
and t0, tg, t2 # 0 1 |
|
unpkbw t4, t4 # 1 0 |
|
|
|
bic t0, tg, t0 # 0 2 |
|
unpkbw t7, t7 # 2 0 |
|
and t3, tg, t5 # 1 1 |
|
addq t0, t1, t0 # 0 3 |
|
|
|
xor t0, t2, t0 # 0 4 |
|
unpkbw ta, ta # 3 0 |
|
and t6, tg, t8 # 2 1 |
|
maxsw4 t0, zero, t0 # 0 5 |
|
|
|
bic t3, tg, t3 # 1 2 |
|
bic t6, tg, t6 # 2 2 |
|
minsw4 t0, tf, t0 # 0 6 |
|
addq t3, t4, t3 # 1 3 |
|
|
|
pkwb t0, t0 # 0 7 |
|
xor t3, t5, t3 # 1 4 |
|
maxsw4 t3, zero, t3 # 1 5 |
|
addq t6, t7, t6 # 2 3 |
|
|
|
xor t6, t8, t6 # 2 4 |
|
and t9, tg, tb # 3 1 |
|
minsw4 t3, tf, t3 # 1 6 |
|
bic t9, tg, t9 # 3 2 |
|
|
|
maxsw4 t6, zero, t6 # 2 5 |
|
addq t9, ta, t9 # 3 3 |
|
stl t0, 0(a1) # 0 8 |
|
minsw4 t6, tf, t6 # 2 6 |
|
|
|
xor t9, tb, t9 # 3 4 |
|
maxsw4 t9, zero, t9 # 3 5 |
|
lda a0, 32(a0) # block += 16; |
|
pkwb t3, t3 # 1 7 |
|
|
|
minsw4 t9, tf, t9 # 3 6 |
|
subq th, 2, th |
|
pkwb t6, t6 # 2 7 |
|
pkwb t9, t9 # 3 7 |
|
|
|
stl t3, 4(a1) # 1 8 |
|
addq te, a2, a1 # pixels += line_size |
|
stl t6, 0(te) # 2 8 |
|
stl t9, 4(te) # 3 8 |
|
|
|
bne th, 1b |
|
ret |
|
.end add_pixels_clamped_mvi_asm
|
|
|