forked from KolibriOS/kolibrios
upload sdk
git-svn-id: svn://kolibrios.org@4349 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
248
contrib/sdk/sources/ffmpeg/libavcodec/arm/vp8_armv6.S
Normal file
248
contrib/sdk/sources/ffmpeg/libavcodec/arm/vp8_armv6.S
Normal file
@@ -0,0 +1,248 @@
|
||||
/*
|
||||
* Copyright (C) 2010 Mans Rullgard
|
||||
*
|
||||
* 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 "libavutil/arm/asm.S"
|
||||
|
||||
.macro rac_get_prob h, bs, buf, cw, pr, t0, t1
|
||||
adds \bs, \bs, \t0
|
||||
lsl \cw, \cw, \t0
|
||||
lsl \t0, \h, \t0
|
||||
rsb \h, \pr, #256
|
||||
it cs
|
||||
ldrhcs \t1, [\buf], #2
|
||||
smlabb \h, \t0, \pr, \h
|
||||
T itttt cs
|
||||
rev16cs \t1, \t1
|
||||
A orrcs \cw, \cw, \t1, lsl \bs
|
||||
T lslcs \t1, \t1, \bs
|
||||
T orrcs \cw, \cw, \t1
|
||||
subcs \bs, \bs, #16
|
||||
lsr \h, \h, #8
|
||||
cmp \cw, \h, lsl #16
|
||||
itt ge
|
||||
subge \cw, \cw, \h, lsl #16
|
||||
subge \h, \t0, \h
|
||||
.endm
|
||||
|
||||
.macro rac_get_128 h, bs, buf, cw, t0, t1
|
||||
adds \bs, \bs, \t0
|
||||
lsl \cw, \cw, \t0
|
||||
lsl \t0, \h, \t0
|
||||
it cs
|
||||
ldrhcs \t1, [\buf], #2
|
||||
mov \h, #128
|
||||
it cs
|
||||
rev16cs \t1, \t1
|
||||
add \h, \h, \t0, lsl #7
|
||||
A orrcs \cw, \cw, \t1, lsl \bs
|
||||
T ittt cs
|
||||
T lslcs \t1, \t1, \bs
|
||||
T orrcs \cw, \cw, \t1
|
||||
subcs \bs, \bs, #16
|
||||
lsr \h, \h, #8
|
||||
cmp \cw, \h, lsl #16
|
||||
itt ge
|
||||
subge \cw, \cw, \h, lsl #16
|
||||
subge \h, \t0, \h
|
||||
.endm
|
||||
|
||||
function ff_decode_block_coeffs_armv6, export=1
|
||||
push {r0,r1,r4-r11,lr}
|
||||
movrelx lr, X(ff_vp56_norm_shift)
|
||||
ldrd r4, r5, [sp, #44] @ token_prob, qmul
|
||||
cmp r3, #0
|
||||
ldr r11, [r5]
|
||||
ldm r0, {r5-r7} @ high, bits, buf
|
||||
it ne
|
||||
pkhtbne r11, r11, r11, asr #16
|
||||
ldr r8, [r0, #16] @ code_word
|
||||
0:
|
||||
ldrb r9, [lr, r5]
|
||||
add r3, r3, #1
|
||||
ldrb r0, [r4, #1]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
blt 2f
|
||||
|
||||
ldrb r9, [lr, r5]
|
||||
ldrb r0, [r4, #2]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
ldrb r9, [lr, r5]
|
||||
bge 3f
|
||||
|
||||
add r4, r3, r3, lsl #5
|
||||
sxth r12, r11
|
||||
add r4, r4, r2
|
||||
adds r6, r6, r9
|
||||
add r4, r4, #11
|
||||
lsl r8, r8, r9
|
||||
it cs
|
||||
ldrhcs r10, [r7], #2
|
||||
lsl r9, r5, r9
|
||||
mov r5, #128
|
||||
it cs
|
||||
rev16cs r10, r10
|
||||
add r5, r5, r9, lsl #7
|
||||
T ittt cs
|
||||
T lslcs r10, r10, r6
|
||||
T orrcs r8, r8, r10
|
||||
A orrcs r8, r8, r10, lsl r6
|
||||
subcs r6, r6, #16
|
||||
lsr r5, r5, #8
|
||||
cmp r8, r5, lsl #16
|
||||
movrel r10, zigzag_scan-1
|
||||
itt ge
|
||||
subge r8, r8, r5, lsl #16
|
||||
subge r5, r9, r5
|
||||
ldrb r10, [r10, r3]
|
||||
it ge
|
||||
rsbge r12, r12, #0
|
||||
cmp r3, #16
|
||||
strh r12, [r1, r10]
|
||||
bge 6f
|
||||
5:
|
||||
ldrb r9, [lr, r5]
|
||||
ldrb r0, [r4]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
pkhtb r11, r11, r11, asr #16
|
||||
bge 0b
|
||||
|
||||
6:
|
||||
ldr r0, [sp]
|
||||
ldr r9, [r0, #12]
|
||||
cmp r7, r9
|
||||
it hi
|
||||
movhi r7, r9
|
||||
stm r0, {r5-r7} @ high, bits, buf
|
||||
str r8, [r0, #16] @ code_word
|
||||
|
||||
add sp, sp, #8
|
||||
mov r0, r3
|
||||
pop {r4-r11,pc}
|
||||
2:
|
||||
add r4, r3, r3, lsl #5
|
||||
cmp r3, #16
|
||||
add r4, r4, r2
|
||||
pkhtb r11, r11, r11, asr #16
|
||||
bne 0b
|
||||
b 6b
|
||||
3:
|
||||
ldrb r0, [r4, #3]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
ldrb r9, [lr, r5]
|
||||
bge 1f
|
||||
|
||||
mov r12, #2
|
||||
ldrb r0, [r4, #4]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
it ge
|
||||
addge r12, #1
|
||||
ldrb r9, [lr, r5]
|
||||
blt 4f
|
||||
ldrb r0, [r4, #5]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
it ge
|
||||
addge r12, #1
|
||||
ldrb r9, [lr, r5]
|
||||
b 4f
|
||||
1:
|
||||
ldrb r0, [r4, #6]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
ldrb r9, [lr, r5]
|
||||
bge 3f
|
||||
|
||||
ldrb r0, [r4, #7]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
ldrb r9, [lr, r5]
|
||||
bge 2f
|
||||
|
||||
mov r12, #5
|
||||
mov r0, #159
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
it ge
|
||||
addge r12, r12, #1
|
||||
ldrb r9, [lr, r5]
|
||||
b 4f
|
||||
2:
|
||||
mov r12, #7
|
||||
mov r0, #165
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
it ge
|
||||
addge r12, r12, #2
|
||||
ldrb r9, [lr, r5]
|
||||
mov r0, #145
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
it ge
|
||||
addge r12, r12, #1
|
||||
ldrb r9, [lr, r5]
|
||||
b 4f
|
||||
3:
|
||||
ldrb r0, [r4, #8]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
it ge
|
||||
addge r4, r4, #1
|
||||
ldrb r9, [lr, r5]
|
||||
ite ge
|
||||
movge r12, #2
|
||||
movlt r12, #0
|
||||
ldrb r0, [r4, #9]
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
mov r9, #8
|
||||
it ge
|
||||
addge r12, r12, #1
|
||||
movrelx r4, X(ff_vp8_dct_cat_prob), r1
|
||||
lsl r9, r9, r12
|
||||
ldr r4, [r4, r12, lsl #2]
|
||||
add r12, r9, #3
|
||||
mov r1, #0
|
||||
ldrb r0, [r4], #1
|
||||
1:
|
||||
ldrb r9, [lr, r5]
|
||||
lsl r1, r1, #1
|
||||
rac_get_prob r5, r6, r7, r8, r0, r9, r10
|
||||
ldrb r0, [r4], #1
|
||||
it ge
|
||||
addge r1, r1, #1
|
||||
cmp r0, #0
|
||||
bne 1b
|
||||
ldrb r9, [lr, r5]
|
||||
add r12, r12, r1
|
||||
ldr r1, [sp, #4]
|
||||
4:
|
||||
add r4, r3, r3, lsl #5
|
||||
add r4, r4, r2
|
||||
add r4, r4, #22
|
||||
rac_get_128 r5, r6, r7, r8, r9, r10
|
||||
it ge
|
||||
rsbge r12, r12, #0
|
||||
smulbb r12, r12, r11
|
||||
movrel r9, zigzag_scan-1
|
||||
ldrb r9, [r9, r3]
|
||||
cmp r3, #16
|
||||
strh r12, [r1, r9]
|
||||
bge 6b
|
||||
b 5b
|
||||
endfunc
|
||||
|
||||
const zigzag_scan
|
||||
.byte 0, 2, 8, 16
|
||||
.byte 10, 4, 6, 12
|
||||
.byte 18, 24, 26, 20
|
||||
.byte 14, 22, 28, 30
|
||||
endconst
|
||||
Reference in New Issue
Block a user