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

	move	$4,$16
	.set	noreorder
	.set	nomacro
	jal	get_le16
	move	$19,$2
	.set	macro
	.set	reorder

	move	$4,$16
	.set	noreorder
	.set	nomacro
	jal	get_byte
	sw	$2,28($sp)
	.set	macro
	.set	reorder

	move	$3,$2
	andi	$4,$3,0x40
	andi	$2,$2,0x80
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L250
	sw	$4,44($sp)
	.set	macro
	.set	reorder

	lw	$17,8($18)
	addiu	$22,$18,16500
	lw	$3,0($18)
$L259:
	addu	$2,$20,$19
	slt	$2,$3,$2
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L224
	li	$6,-5			# 0xfffffffffffffffb
	.set	macro
	.set	reorder

	lw	$4,28($sp)
	lw	$3,4($18)
	addu	$2,$fp,$4
	slt	$2,$3,$2
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L260
	lw	$31,92($sp)
	.set	macro
	.set	reorder

	lw	$3,36($18)
	li	$2,2			# 0x2
	.set	noreorder
	.set	nomacro
	bne	$3,$2,$L157
	li	$2,1			# 0x1
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	jal	av_malloc
	move	$4,$19
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L224
	li	$6,-5			# 0xfffffffffffffffb
	.set	macro
	.set	reorder

	sw	$2,48($sp)
$L160:
	move	$4,$16
	.set	noreorder
	.set	nomacro
	jal	get_byte
	sw	$16,48($18)
	.set	macro
	.set	reorder

	addiu	$9,$2,1
	lui	$3,%hi(mask)
	addiu	$3,$3,%lo(mask)
	sll	$4,$9,1
	addu	$4,$4,$3
	li	$5,1			# 0x1
	sll	$6,$5,$2
	lhu	$7,0($4)
	addiu	$8,$18,18036
	sw	$2,80($18)
	lw	$2,28($sp)
	move	$21,$8
	addiu	$3,$6,1
	addiu	$8,$6,2
	sll	$5,$5,$9
	addiu	$4,$18,116
	sw	$3,88($18)
	sw	$7,76($18)
	sw	$5,96($18)
	sw	$8,100($18)
	sw	$4,112($18)
	sw	$0,52($18)
	sw	$21,56($18)
	sw	$21,60($18)
	sw	$0,68($18)
	sw	$0,64($18)
	sw	$9,72($18)
	sw	$6,84($18)
	sw	$8,92($18)
	sw	$0,104($18)
	sw	$0,108($18)
	lw	$23,28($18)
	.set	noreorder
	.set	nomacro
	blez	$2,$L170
	lw	$3,24($18)
	.set	macro
	.set	reorder

	mul	$4,$fp,$23
	sll	$2,$20,1
	addu	$2,$2,$20
	addu	$2,$4,$2
	addu	$3,$3,$2
	sw	$3,24($sp)
	sll	$3,$23,2
	sw	$3,36($sp)
	sll	$4,$23,3
	lw	$3,24($sp)
	sw	$4,32($sp)
	lw	$4,36($sp)
	sll	$2,$23,1
	sw	$2,40($sp)
	addu	$4,$3,$4
	addu	$2,$3,$2
	move	$16,$3
	move	$17,$0
	move	$fp,$0
	move	$20,$0
	sw	$2,20($sp)
	.set	noreorder
	.set	nomacro
	j	$L172
	sw	$4,16($sp)
	.set	macro
	.set	reorder

$L252:
	.set	noreorder
	.set	nomacro
	beq	$fp,$2,$L181
	li	$2,3			# 0x3
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	beq	$fp,$2,$L182
	lw	$3,28($sp)
	.set	macro
	.set	reorder

	addiu	$20,$20,8
	slt	$2,$20,$3
	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L183
	lw	$2,16($sp)
	.set	macro
	.set	reorder

	lw	$4,32($sp)
	addu	$16,$16,$4
$L185:
	lw	$4,28($sp)
	addiu	$17,$17,1
	beq	$4,$17,$L170
$L172:
	lw	$2,36($18)
	li	$3,2			# 0x2
	.set	noreorder
	.set	nomacro
	beq	$2,$3,$L251
	move	$4,$18
	.set	macro
	.set	reorder

	move	$5,$16
	.set	noreorder
	.set	nomacro
	jal	GLZWDecode
	move	$6,$19
	.set	macro
	.set	reorder

$L175:
	lw	$4,44($sp)
$L257:
	.set	noreorder
	.set	nomacro
	bne	$4,$0,$L252
	li	$2,2			# 0x2
	.set	macro
	.set	reorder

	lw	$4,28($sp)
	addiu	$17,$17,1
	.set	noreorder
	.set	nomacro
	bne	$4,$17,$L172
	addu	$16,$16,$23
	.set	macro
	.set	reorder

$L170:
	.set	noreorder
	.set	nomacro
	jal	av_free
	lw	$4,48($sp)
	.set	macro
	.set	reorder

	lw	$7,52($18)
	bne	$7,$0,$L192
	lw	$5,64($18)
	lw	$9,72($18)
$L191:
	slt	$2,$5,$9
	bne	$2,$0,$L230
	.set	noreorder
	.set	nomacro
	j	$L256
	lw	$4,68($18)
	.set	macro
	.set	reorder

$L194:
	lbu	$2,0($8)
	lw	$4,68($18)
	sll	$2,$2,$5
	addiu	$5,$5,8
	or	$4,$4,$2
	addiu	$3,$8,1
	slt	$2,$5,$9
	sw	$5,64($18)
	sw	$3,56($18)
	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L200
	sw	$4,68($18)
	.set	macro
	.set	reorder

$L230:
	lw	$8,56($18)
	lw	$2,60($18)
	sltu	$2,$8,$2
	bne	$2,$0,$L194
	bne	$7,$0,$L194
	.set	noreorder
	.set	nomacro
	jal	get_byte
	lw	$4,48($18)
	.set	macro
	.set	reorder

	addu	$3,$21,$2
	move	$6,$2
	move	$8,$21
	move	$5,$21
	li	$7,1			# 0x1
	sw	$3,60($18)
	.set	noreorder
	.set	nomacro
	blez	$2,$L198
	sw	$21,56($18)
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	jal	get_buffer
	lw	$4,48($18)
	.set	macro
	.set	reorder

	lw	$8,56($18)
	lw	$5,64($18)
	lbu	$2,0($8)
	lw	$4,68($18)
	lw	$9,72($18)
	sll	$2,$2,$5
	addiu	$5,$5,8
	or	$4,$4,$2
	addiu	$3,$8,1
	slt	$2,$5,$9
	lw	$7,52($18)
	sw	$5,64($18)
	sw	$3,56($18)
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L230
	sw	$4,68($18)
	.set	macro
	.set	reorder

$L200:
	srl	$4,$4,$9
$L258:
	subu	$5,$5,$9
	sw	$4,68($18)
	.set	noreorder
	.set	nomacro
	beq	$7,$0,$L191
	sw	$5,64($18)
	.set	macro
	.set	reorder

$L192:
	lw	$2,0($18)
	lw	$3,4($18)
	sll	$5,$2,1
	addu	$5,$5,$2
	mul	$5,$5,$3
	.set	noreorder
	.set	nomacro
	jal	av_new_packet
	lw	$4,100($sp)
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L224
	li	$6,-5			# 0xfffffffffffffffb
	.set	macro
	.set	reorder

	lw	$2,100($sp)
	lw	$7,24($18)
	sw	$0,24($2)
	lw	$3,0($18)
	lw	$4,4($18)
	sll	$2,$3,1
	addu	$2,$2,$3
	mul	$6,$2,$4
	lw	$2,100($sp)
	lw	$4,16($2)
	sltu	$2,$6,32
	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L212
	andi	$2,$4,0x3
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L212
	andi	$2,$7,0x3
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	bne	$2,$0,$L212
	li	$2,-32			# 0xffffffffffffffe0
	.set	macro
	.set	reorder

	addiu	$5,$4,-4
	and	$2,$6,$2
	addu	$8,$5,$2
	sltu	$3,$5,$8
	.set	noreorder
	.set	nomacro
	beq	$3,$0,$L216
	addiu	$4,$7,-4
	.set	macro
	.set	reorder

$L231:
#APP
	S32LDI xr1,$4,4
	S32LDI xr2,$4,4
	S32LDI xr3,$4,4
	S32LDI xr4,$4,4
	S32LDI xr5,$4,4
	S32LDI xr6,$4,4
	S32LDI xr7,$4,4
	S32LDI xr8,$4,4
	S32SDI xr1,$5,4
	S32SDI xr2,$5,4
	S32SDI xr3,$5,4
	S32SDI xr4,$5,4
	S32SDI xr5,$5,4
	S32SDI xr6,$5,4
	S32SDI xr7,$5,4
	S32SDI xr8,$5,4
#NO_APP
	sltu	$2,$5,$8
	bne	$2,$0,$L231
$L216:
	andi	$2,$6,0x1c
	addu	$7,$8,$2
	sltu	$3,$5,$7
	beq	$3,$0,$L218
$L232:
#APP
	S32LDI xr1,$4,4
	S32SDI xr1,$5,4
#NO_APP
	sltu	$2,$5,$7
	bne	$2,$0,$L232
$L218:
	andi	$6,$6,0x3
	li	$2,2			# 0x2
	.set	noreorder
	.set	nomacro
	beq	$6,$2,$L222
	li	$2,3			# 0x3
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	beq	$6,$2,$L223
	li	$2,1			# 0x1
	.set	macro
	.set	reorder

	bne	$6,$2,$L248
	lbu	$2,4($4)
	move	$6,$0
	.set	noreorder
	.set	nomacro
	j	$L224
	sb	$2,4($5)
	.set	macro
	.set	reorder

$L150:
	lw	$19,48($18)
	.set	noreorder
	.set	nomacro
	jal	get_byte
	move	$4,$19
	.set	macro
	.set	reorder

	move	$4,$19
	.set	noreorder
	.set	nomacro
	jal	get_byte
	move	$16,$2
	.set	macro
	.set	reorder

	move	$17,$2
	li	$2,249			# 0xf9
	.set	noreorder
	.set	nomacro
	beq	$16,$2,$L254
	li	$2,4			# 0x4
	.set	macro
	.set	reorder

$L247:
	beq	$17,$0,$L245
$L255:
	blez	$17,$L210
	move	$16,$0
	addiu	$16,$16,1
$L261:
	.set	noreorder
	.set	nomacro
	jal	get_byte
	move	$4,$19
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	bne	$16,$17,$L261
	addiu	$16,$16,1
	.set	macro
	.set	reorder

	addiu	$16,$16,-1
$L210:
	.set	noreorder
	.set	nomacro
	jal	get_byte
	move	$4,$19
	.set	macro
	.set	reorder

	move	$17,$2
	beq	$17,$0,$L245
	j	$L255
$L254:
	bne	$17,$2,$L247
	li	$17,-1			# 0xffffffffffffffff
	sw	$17,16($18)
	.set	noreorder
	.set	nomacro
	jal	get_byte
	move	$4,$19
	.set	macro
	.set	reorder

	move	$4,$19
	.set	noreorder
	.set	nomacro
	jal	get_le16
	move	$16,$2
	.set	macro
	.set	reorder

	sw	$2,44($18)
	.set	noreorder
	.set	nomacro
	jal	get_byte
	move	$4,$19
	.set	macro
	.set	reorder

	sra	$3,$16,2
	andi	$16,$16,0x1
	movz	$2,$17,$16
	andi	$3,$3,0x7
	sw	$2,16($18)
	sw	$3,40($18)
	.set	noreorder
	.set	nomacro
	jal	get_byte
	move	$4,$19
	.set	macro
	.set	reorder

	move	$17,$2
	beq	$17,$0,$L245
	j	$L255
$L251:
	lw	$5,48($sp)
	.set	noreorder
	.set	nomacro
	jal	GLZWDecode
	move	$6,$19
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	blez	$19,$L175
	move	$5,$16
	.set	macro
	.set	reorder

	lw	$6,48($sp)
	move	$7,$0
$L177:
	lbu	$3,0($6)
	addiu	$7,$7,1
	sll	$2,$3,1
	addu	$2,$2,$3
	addu	$2,$22,$2
	lbu	$4,0($2)
	addiu	$6,$6,1
	sb	$4,0($5)
	lbu	$3,1($2)
	sb	$3,1($5)
	lbu	$4,2($2)
	sb	$4,2($5)
	.set	noreorder
	.set	nomacro
	bne	$19,$7,$L177
	addiu	$5,$5,3
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	j	$L257
	lw	$4,44($sp)
	.set	macro
	.set	reorder

$L181:
	lw	$3,28($sp)
	addiu	$20,$20,4
	slt	$2,$20,$3
	.set	noreorder
	.set	nomacro
	beq	$2,$0,$L189
	lw	$2,24($sp)
	.set	macro
	.set	reorder

	lw	$4,36($sp)
	.set	noreorder
	.set	nomacro
	j	$L185
	addu	$16,$16,$4
	.set	macro
	.set	reorder

$L183:
	lw	$16,20($sp)
	li	$20,4			# 0x4
	movz	$16,$2,$fp
	.set	noreorder
	.set	nomacro
	j	$L185
	addiu	$fp,$fp,1
	.set	macro
	.set	reorder

$L198:
	lw	$5,64($18)
	lw	$9,72($18)
	.set	noreorder
	.set	nomacro
	j	$L194
	sw	$7,52($18)
	.set	macro
	.set	reorder

$L182:
	lw	$3,40($sp)
	addiu	$20,$20,2
	.set	noreorder
	.set	nomacro
	j	$L185
	addu	$16,$16,$3
	.set	macro
	.set	reorder

$L256:
	.set	noreorder
	.set	nomacro
	j	$L258
	srl	$4,$4,$9
	.set	macro
	.set	reorder

$L250:
	andi	$2,$3,0x7
	addiu	$17,$2,1
	addiu	$22,$18,17268
	li	$6,3			# 0x3
	sll	$6,$6,$17
	move	$4,$16
	.set	noreorder
	.set	nomacro
	jal	get_buffer
	move	$5,$22
	.set	macro
	.set	reorder

	.set	noreorder
	.set	nomacro
	j	$L259
	lw	$3,0($18)
	.set	macro
	.set	reorder

$L189:
	li	$fp,3			# 0x3
	addu	$16,$2,$23
	.set	noreorder
	.set	nomacro
	j	$L185
	li	$20,1			# 0x1
	.set	macro
	.set	reorder

$L212:
	.set	noreorder
	.set	nomacro
	jal	memcpy
	move	$5,$7
	.set	macro
	.set	reorder

$L248:
	.set	noreorder
	.set	nomacro
	j	$L224
	move	$6,$0
	.set	macro
	.set	reorder

$L157:
	sll	$7,$2,$17
	blez	$7,$L161
	lw	$9,32($18)
	move	$5,$22
	move	$8,$0
	li	$10,-16777216			# 0xffffffffff000000
	move	$6,$9
$L163:
	lbu	$2,0($5)
	lbu	$3,1($5)
	lbu	$4,2($5)
	sll	$2,$2,16
	sll	$3,$3,8
	or	$2,$2,$4
	or	$3,$3,$10
	or	$2,$2,$3
	addiu	$8,$8,1
	sw	$2,0($6)
	addiu	$5,$5,3
	.set	noreorder
	.set	nomacro
	bne	$7,$8,$L163
	addiu	$6,$6,4
	.set	macro
	.set	reorder

	slt	$2,$7,256
	beq	$2,$0,$L166
$L165:
	sll	$5,$7,2
$L167:
	addiu	$7,$7,1
	addu	$2,$9,$5
	li	$3,-16777216			# 0xffffffffff000000
	slt	$4,$7,256
	sw	$3,0($2)
	.set	noreorder
	.set	nomacro
	bne	$4,$0,$L167
	addiu	$5,$5,4
	.set	macro
	.set	reorder

$L166:
	lw	$2,16($18)
	.set	noreorder
	.set	nomacro
	bltz	$2,$L246
	sll	$2,$2,2
	.set	macro
	.set	reorder

	addu	$2,$2,$9
	sw	$0,0($2)
$L246:
	.set	noreorder
	.set	nomacro
	j	$L160
	sw	$0,48($sp)
	.set	macro
	.set	reorder

$L161:
	lw	$9,32($18)
	.set	noreorder
	.set	nomacro
	j	$L165
	move	$7,$0
	.set	macro
	.set	reorder

$L222:
	lbu	$3,4($4)
	move	$6,$0
	sb	$3,4($5)
	lbu	$2,5($4)
	.set	noreorder
	.set	nomacro
	j	$L224
	sb	$2,5($5)
	.set	macro
	.set	reorder

$L223:
	lbu	$2,4($4)
	move	$6,$0
	sb	$2,4($5)
	lbu	$3,5($4)
	sb	$3,5($5)
	lbu	$2,6($4)
	.set	noreorder
	.set	nomacro
	j	$L224
	sb	$2,6($5)
	.set	macro
	.set	reorder

	.end	gif_read_packet
	.globl	gif_demuxer
	.section	.rodata.str1.4
	.align	2
$LC1:
	.ascii	"gif\000"
	.align	2
$LC2:
	.ascii	"gif format\000"
	.data
	.align	2
	.type	gif_demuxer, @object
	.size	gif_demuxer, 64
gif_demuxer:
	.word	$LC1
	.word	$LC2
	.word	18292
	.word	gif_video_probe
	.word	gif_read_header
	.word	gif_read_packet
	.word	gif_read_close
	.space	36
	.rdata
	.align	2
	.type	mask, @object
	.size	mask, 34
mask:
	.half	0
	.half	1
	.half	3
	.half	7
	.half	15
	.half	31
	.half	63
	.half	127
	.half	255
	.half	511
	.half	1023
	.half	2047
	.half	4095
	.half	8191
	.half	16383
	.half	32767
	.half	-1
	.align	2
	.type	gif87a_sig, @object
	.size	gif87a_sig, 6
gif87a_sig:
	.ascii	"GIF87a"
	.align	2
	.type	gif89a_sig, @object
	.size	gif89a_sig, 6
gif89a_sig:
	.ascii	"GIF89a"
	.ident	"GCC: (GNU) 4.1.2"