gifdec.mid

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」· MID 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