gifdec.s

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· S 代码 · 共 1,701 行 · 第 1/2 页

.file	1 "gifdec.c"
.section .mdebug.abi32
.previous
.section	.text.gif_read_close,"ax",@progbits
.align	2
.align	5
.ent	gif_read_close
.type	gif_read_close, @function
gif_read_close:
.frame	$sp,24,$31		# vars= 0, regs= 1/0, args= 16, gp= 0
.mask	0x80000000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-24
sw	$31,16($sp)
lw	$2,12($4)
jal	av_free
lw	$4,24($2)

lw	$31,16($sp)
move	$2,$0
j	$31
addiu	$sp,$sp,24

.set	macro
.set	reorder
.end	gif_read_close
.section	.text.gif_video_probe,"ax",@progbits
.align	2
.align	5
.ent	gif_video_probe
.type	gif_video_probe, @function
gif_video_probe:
.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
.mask	0x80030000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-32
sw	$31,24($sp)
sw	$17,20($sp)
sw	$16,16($sp)
lw	$17,8($4)
slt	$2,$17,24
beq	$2,$0,$L35
lui	$5,%hi(gif89a_sig)

$L4:
move	$2,$0
$L25:
lw	$31,24($sp)
$L39:
lw	$17,20($sp)
lw	$16,16($sp)
j	$31
addiu	$sp,$sp,32

$L35:
lw	$16,4($4)
addiu	$5,$5,%lo(gif89a_sig)
move	$4,$16
jal	memcmp
li	$6,6			# 0x6

bne	$2,$0,$L4
addu	$6,$16,$17

lbu	$3,10($16)
andi	$2,$3,0x80
bne	$2,$0,$L36
addiu	$5,$16,13

$L7:
sltu	$2,$5,$6
beq	$2,$0,$L4
li	$2,33			# 0x21

lbu	$3,0($5)
bne	$3,$2,$L4
addiu	$2,$5,1

sltu	$2,$2,$6
beq	$2,$0,$L4
addiu	$2,$5,2

sltu	$2,$2,$6
beq	$2,$0,$L4
lbu	$7,1($5)

li	$2,249			# 0xf9
addiu	$4,$5,3
bne	$7,$2,$L33
lbu	$3,2($5)

j	$L37
sltu	$2,$4,$6

$L21:
sltu	$2,$4,$6
beq	$2,$0,$L4
li	$2,33			# 0x21

lbu	$3,0($4)
bne	$3,$2,$L4
addiu	$2,$4,1

sltu	$2,$2,$6
beq	$2,$0,$L4
addiu	$2,$4,2

sltu	$2,$2,$6
beq	$2,$0,$L4
lbu	$5,1($4)

li	$2,249			# 0xf9
lbu	$3,2($4)
beq	$5,$2,$L13
addiu	$4,$4,3

$L33:
beq	$3,$0,$L21
move	$2,$3

addu	$4,$2,$4
$L38:
sltu	$2,$4,$6
beq	$2,$0,$L25
move	$2,$0

lbu	$2,0($4)
beq	$2,$0,$L21
addiu	$4,$4,1

j	$L38
addu	$4,$2,$4

$L36:
andi	$3,$3,0x7
addiu	$3,$3,1
li	$2,3			# 0x3
sll	$2,$2,$3
j	$L7
addu	$5,$5,$2

$L13:
sltu	$2,$4,$6
$L37:
beq	$2,$0,$L25
move	$2,$0

lbu	$2,0($4)
sra	$2,$2,2
andi	$2,$2,0x7
beq	$2,$0,$L4
li	$2,100			# 0x64

j	$L39
lw	$31,24($sp)

.set	macro
.set	reorder
.end	gif_video_probe
.section	.rodata.str1.4,"aMS",@progbits,1
.align	2
$LC0:
.ascii	"picture size too large\012\000"
.section	.text.gif_read_header,"ax",@progbits
.align	2
.align	5
.ent	gif_read_header
.type	gif_read_header, @function
gif_read_header:
.frame	$sp,48,$31		# vars= 8, regs= 5/0, args= 16, gp= 0
.mask	0x800f0000,-8
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-48
sw	$19,36($sp)
sw	$17,28($sp)
sw	$16,24($sp)
sw	$31,40($sp)
sw	$18,32($sp)
lw	$18,12($4)
addiu	$17,$4,16
addiu	$16,$sp,16
move	$19,$4
sw	$17,48($18)
move	$4,$17
move	$5,$16
jal	get_buffer
li	$6,6			# 0x6

li	$3,6			# 0x6
bne	$2,$3,$L41
lui	$5,%hi(gif87a_sig)

addiu	$5,$5,%lo(gif87a_sig)
move	$4,$16
jal	memcmp
li	$6,6			# 0x6

bne	$2,$0,$L55
lui	$5,%hi(gif89a_sig)

li	$2,-1			# 0xffffffffffffffff
$L58:
move	$4,$17
jal	get_le16
sw	$2,16($18)

sw	$2,0($18)
jal	get_le16
move	$4,$17

move	$4,$2
lw	$2,0($18)
li	$3,32767			# 0x7fff
sltu	$2,$3,$2
bne	$2,$0,$L45
sw	$4,4($18)

li	$2,32768			# 0x8000
sltu	$2,$4,$2
bne	$2,$0,$L47
nop

$L45:
lui	$6,%hi($LC0)
addiu	$6,$6,%lo($LC0)
move	$4,$0
jal	av_log
move	$5,$0

li	$6,-1			# 0xffffffffffffffff
$L48:
lw	$31,40($sp)
lw	$19,36($sp)
lw	$18,32($sp)
lw	$17,28($sp)
lw	$16,24($sp)
move	$2,$6
j	$31
addiu	$sp,$sp,48

$L55:
move	$4,$16
addiu	$5,$5,%lo(gif89a_sig)
jal	memcmp
li	$6,6			# 0x6

beq	$2,$0,$L58
li	$2,-1			# 0xffffffffffffffff

$L41:
li	$6,-1			# 0xffffffffffffffff
lw	$31,40($sp)
lw	$19,36($sp)
lw	$18,32($sp)
lw	$17,28($sp)
lw	$16,24($sp)
move	$2,$6
j	$31
addiu	$sp,$sp,48

$L47:
jal	get_byte
move	$4,$17

move	$16,$2
andi	$2,$2,0x70
andi	$3,$16,0x7
sra	$2,$2,4
addiu	$3,$3,1
addiu	$2,$2,1
sw	$3,8($18)
move	$4,$17
jal	get_byte
sw	$2,20($18)

sw	$2,12($18)
move	$4,$17
jal	get_byte
andi	$16,$16,0x80

bne	$16,$0,$L56
li	$6,1			# 0x1

lw	$3,0($18)
$L57:
lw	$4,4($18)
sll	$2,$3,1
addu	$2,$2,$3
mul	$4,$2,$4
jal	av_malloc
sw	$2,28($18)

bne	$2,$0,$L51
sw	$2,24($18)

j	$L48
li	$6,-12			# 0xfffffffffffffff4

$L56:
lw	$2,8($18)
sll	$6,$6,$2
sll	$3,$6,1
addu	$6,$3,$6
move	$4,$17
jal	get_buffer
addiu	$5,$18,16500

j	$L57
lw	$3,0($18)

$L51:
li	$16,2			# 0x2
sw	$16,36($18)
move	$4,$19
jal	av_new_stream
move	$5,$0

beq	$2,$0,$L41
li	$3,1			# 0x1

lw	$4,8($2)
li	$2,5			# 0x5
sw	$2,36($4)
sw	$3,32($4)
lw	$2,0($18)
move	$6,$0
sw	$2,40($4)
lw	$3,4($18)
li	$2,14			# 0xe
sw	$16,52($4)
sw	$2,228($4)
sw	$3,44($4)
j	$L48
sw	$0,224($4)

.set	macro
.set	reorder
.end	gif_read_header
.section	.text.GLZWDecode,"ax",@progbits
.align	2
.align	5
.ent	GLZWDecode
.type	GLZWDecode, @function
GLZWDecode:
.frame	$sp,56,$31		# vars= 0, regs= 10/0, args= 16, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-56
sw	$19,28($sp)
sw	$16,16($sp)
sw	$31,52($sp)
sw	$fp,48($sp)
sw	$23,44($sp)
sw	$22,40($sp)
sw	$21,36($sp)
sw	$20,32($sp)
sw	$18,24($sp)
sw	$17,20($sp)
lw	$2,88($4)
move	$16,$4
move	$19,$5
bltz	$2,$L133
sw	$6,64($sp)

lw	$17,112($4)
lw	$23,108($4)
lw	$22,104($4)
move	$18,$6
j	$L63
addiu	$21,$4,116

$L135:
addiu	$19,$19,1
$L63:
sltu	$2,$21,$17
beq	$2,$0,$L134
addiu	$fp,$16,18036

addiu	$17,$17,-1
lbu	$2,0($17)
addiu	$18,$18,-1
bne	$18,$0,$L135
sb	$2,0($19)

$L65:
sw	$22,104($16)
$L141:
sw	$23,108($16)
lw	$3,64($sp)
sw	$17,112($16)
subu	$2,$3,$18
lw	$31,52($sp)
lw	$fp,48($sp)
lw	$23,44($sp)
lw	$22,40($sp)
lw	$21,36($sp)
lw	$20,32($sp)
lw	$19,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
j	$31
addiu	$sp,$sp,56

$L134:
$L132:
lw	$8,72($16)
lw	$6,64($16)
slt	$2,$6,$8
bne	$2,$0,$L120
nop

j	$L140
lw	$7,68($16)

$L71:
lbu	$2,0($4)
lw	$7,68($16)
sll	$2,$2,$6
addiu	$6,$6,8
or	$7,$7,$2
addiu	$4,$4,1
slt	$2,$6,$8
sw	$6,64($16)
sw	$4,56($16)
beq	$2,$0,$L69
sw	$7,68($16)

$L120:
lw	$4,56($16)
lw	$2,60($16)
sltu	$2,$4,$2
bne	$2,$0,$L71
nop

lw	$2,52($16)
bne	$2,$0,$L71
nop

jal	get_byte
lw	$4,48($16)

addu	$3,$fp,$2
move	$6,$2
move	$4,$fp
move	$5,$fp
sw	$3,60($16)
blez	$2,$L75
sw	$fp,56($16)

jal	get_buffer
lw	$4,48($16)

lw	$4,56($16)
lw	$6,64($16)
lbu	$2,0($4)
lw	$7,68($16)
lw	$8,72($16)
sll	$2,$2,$6
addiu	$6,$6,8
or	$7,$7,$2
addiu	$4,$4,1
slt	$2,$6,$8
sw	$6,64($16)
sw	$4,56($16)
bne	$2,$0,$L120
sw	$7,68($16)

$L69:
lw	$2,76($16)
$L143:
lw	$3,88($16)
subu	$6,$6,$8
and	$10,$7,$2
srl	$7,$7,$8
sw	$7,68($16)
beq	$10,$3,$L117
sw	$6,64($16)

lw	$9,84($16)
beq	$10,$9,$L136
addiu	$20,$16,18036

lw	$2,100($16)
slt	$2,$10,$2
beq	$2,$0,$L97
addiu	$7,$17,1

move	$7,$17
move	$6,$10
$L99:
lw	$2,92($16)
slt	$2,$6,$2
bne	$2,$0,$L144
andi	$11,$6,0x00ff

$L122:
addu	$3,$6,$16
lbu	$4,4212($3)
sll	$2,$6,1
sb	$4,0($7)
addu	$2,$2,$16
lhu	$6,8308($2)
lw	$3,92($16)
slt	$3,$6,$3
beq	$3,$0,$L122
addiu	$7,$7,1

andi	$11,$6,0x00ff
$L144:
sb	$11,0($7)
lw	$8,100($16)
lw	$9,96($16)
slt	$2,$8,$9
beq	$2,$0,$L102
addiu	$17,$7,1

addiu	$4,$8,1
sll	$3,$8,1
addu	$3,$3,$16
addu	$2,$8,$16
slt	$5,$4,$9
sb	$11,4212($2)
sh	$23,8308($3)
bne	$5,$0,$L104
sw	$4,100($16)

move	$22,$6
move	$23,$10
$L102:
lw	$5,72($16)
slt	$2,$5,12
beq	$2,$0,$L145
sltu	$2,$21,$17

addiu	$5,$5,1
lui	$3,%hi(mask)
addiu	$3,$3,%lo(mask)
sll	$2,$5,1
addu	$2,$2,$3
lhu	$4,0($2)
sll	$3,$9,1
sw	$3,96($16)
sw	$4,76($16)
sw	$5,72($16)
$L106:
sltu	$2,$21,$17
$L145:
beq	$2,$0,$L132
nop

addiu	$17,$17,-1
lbu	$2,0($17)
addiu	$18,$18,-1
beq	$18,$0,$L65
sb	$2,0($19)

addiu	$19,$19,1
j	$L110
subu	$3,$21,$7

$L137:
addiu	$19,$19,1
$L110:
addu	$2,$3,$7
beq	$2,$17,$L132
nop

addiu	$17,$17,-1
lbu	$2,0($17)
addiu	$18,$18,-1
bne	$18,$0,$L137
sb	$2,0($19)

j	$L141
sw	$22,104($16)

$L75:
lw	$6,64($16)
lw	$8,72($16)
li	$2,1			# 0x1
j	$L71
sw	$2,52($16)

$L97:
move	$6,$23
j	$L99
sb	$22,0($17)

$L136:
lw	$3,80($16)
lw	$5,92($16)
addiu	$8,$3,1
lui	$3,%hi(mask)
addiu	$3,$3,%lo(mask)
sll	$2,$8,1
addu	$2,$2,$3
lhu	$3,0($2)
li	$2,1			# 0x1
sll	$4,$2,$8
sw	$3,76($16)
sw	$5,100($16)
sw	$4,96($16)
sw	$8,72($16)
$L81:
slt	$2,$6,$8
bne	$2,$0,$L121
nop

j	$L142
lw	$2,76($16)

$L84:
lbu	$2,0($4)
addiu	$4,$4,1
sll	$2,$2,$6
addiu	$6,$6,8
or	$7,$7,$2
slt	$3,$6,$8
sw	$7,68($16)
sw	$6,64($16)
beq	$3,$0,$L138
sw	$4,56($16)

$L121:
lw	$4,56($16)
lw	$2,60($16)
sltu	$2,$4,$2
bne	$2,$0,$L84
nop

lw	$2,52($16)
bne	$2,$0,$L84
nop

jal	get_byte
lw	$4,48($16)

addu	$3,$20,$2
move	$6,$2
move	$4,$20
move	$5,$20
sw	$3,60($16)
blez	$2,$L88
sw	$20,56($16)

jal	get_buffer
lw	$4,48($16)

lw	$4,56($16)
lw	$6,64($16)
lbu	$2,0($4)
lw	$7,68($16)
lw	$8,72($16)
sll	$2,$2,$6
addiu	$6,$6,8
addiu	$4,$4,1
or	$7,$7,$2
slt	$3,$6,$8
sw	$7,68($16)
sw	$6,64($16)
bne	$3,$0,$L121
sw	$4,56($16)

$L138:
lw	$9,84($16)
lw	$2,76($16)
$L142:
srl	$4,$7,$8
subu	$3,$6,$8
and	$5,$7,$2
move	$6,$3
move	$7,$4
sw	$4,68($16)
beq	$5,$9,$L81
sw	$3,64($16)

lw	$2,88($16)
beq	$5,$2,$L146
li	$2,-1			# 0xffffffffffffffff

lw	$2,100($16)
slt	$2,$5,$2
bne	$2,$0,$L93
nop

move	$5,$0
$L95:
addiu	$18,$18,-1
beq	$18,$0,$L139
sb	$2,0($19)

move	$22,$5
addiu	$19,$19,1
j	$L132
move	$23,$5

$L88:
lw	$6,64($16)
lw	$7,68($16)
lw	$8,72($16)
li	$3,1			# 0x1
j	$L84
sw	$3,52($16)

$L133:
lw	$31,52($sp)
lw	$fp,48($sp)
lw	$23,44($sp)
lw	$22,40($sp)
lw	$21,36($sp)
lw	$20,32($sp)
lw	$19,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$2,$0
j	$31
addiu	$sp,$sp,56

$L104:
move	$22,$6
j	$L106
move	$23,$10

$L93:
j	$L95
andi	$2,$5,0x00ff

$L140:
j	$L143
lw	$2,76($16)

$L117:
li	$2,-1			# 0xffffffffffffffff
$L146:
j	$L65
sw	$2,88($16)

$L139:
move	$22,$5
j	$L65
move	$23,$5

.set	macro
.set	reorder
.end	GLZWDecode
.section	.text.gif_read_packet,"ax",@progbits
.align	2
.align	5
.ent	gif_read_packet
.type	gif_read_packet, @function
gif_read_packet:
.frame	$sp,96,$31		# vars= 40, regs= 10/0, args= 16, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
addiu	$sp,$sp,-96
sw	$31,92($sp)
sw	$fp,88($sp)
sw	$23,84($sp)
sw	$22,80($sp)
sw	$21,76($sp)
sw	$20,72($sp)
sw	$19,68($sp)
sw	$18,64($sp)
sw	$17,60($sp)
sw	$16,56($sp)
lw	$18,12($4)
sw	$5,100($sp)
lw	$20,48($18)
$L245:
.set	noreorder
.set	nomacro
jal	url_fgetc
move	$4,$20
.set	macro
.set	reorder

move	$3,$2
li	$2,33			# 0x21
.set	noreorder
.set	nomacro
beq	$3,$2,$L150
li	$2,44			# 0x2c
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
beq	$3,$2,$L249
li	$6,-5			# 0xfffffffffffffffb
.set	macro
.set	reorder

$L224:
lw	$31,92($sp)
$L260:
lw	$fp,88($sp)
lw	$23,84($sp)
lw	$22,80($sp)
lw	$21,76($sp)
lw	$20,72($sp)
lw	$19,68($sp)
lw	$18,64($sp)
lw	$17,60($sp)
lw	$16,56($sp)
move	$2,$6
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,96
.set	macro
.set	reorder

$L249:
lw	$16,48($18)
.set	noreorder
.set	nomacro
jal	get_le16
move	$4,$16
.set	macro
.set	reorder

move	$4,$16
.set	noreorder
.set	nomacro
jal	get_le16
move	$20,$2
.set	macro
.set	reorder

move	$4,$16
.set	noreorder
.set	nomacro
jal	get_le16
move	$fp,$2
.set	macro
.set	reorder