kolibrios/programs/media/animage/trunk/load_from_parameters.inc

; load picture from file to memory

load_picture:
	mov	eax,file_path
	mov	ebx,[ScreenPointer]
	add	ebx,0x10000

	call	load_heading_of_file

	mov	esi,[ScreenPointer]
	add	esi,0x10000
;-------------is this BMP file ?----------------
	xor	eax,eax
	mov	ax,[esi]
	mov	[type],ax

	cmp	[type],word 'BM'
	jne	no_bmp_file_1

	xor	eax,eax
	xor	ebx,ebx
	mov	eax,[esi+18]
	mov	ebx,[esi+22]
	mov	[Picture_SizeX],eax
	mov	[Picture_SizeY],ebx
	jmp	exit_type_1

no_bmp_file_1:
;-------------is this GIF file ?----------------
	xor	eax,eax
	mov	ax,[esi]
	mov	[type],ax
	cmp	[type],'GI'
	jne	no_gif_file_1

	add	esi,6
	xor	eax,eax
	xor	ebx,ebx
	mov	ax,word[esi]
	mov	bx,word[esi+2]
	mov	[Picture_SizeX],eax
	mov	[Picture_SizeY],ebx
	jmp	exit_type_1

no_gif_file_1:
	jmp	no_unpakcing_file_1

exit_type_1:
;----------------------------------------------------------
;Get momory for unpacking picture and for picture's bufers
;----------------------------------------------------------
	call GetMemory
;----------------------------------------------------------
;--------------------Load file in memory-------------------
;----------------------------------------------------------

	mov	eax,file_path
	mov	ebx,[PointerToCopyPicture]
	add	ebx,1000
	call	load_file

;----------------------------------------------------------
;-------------------Unpacking picture----------------------
;----------------------------------------------------------
	mov	esi,[PointerToCopyPicture]
	add	esi,1000
	mov	edi,[PointerToPicture]
	mov	eax,[ScreenPointer]
	cmp	[type],'BM'
	jne	no_unpakcing_bmp_file_1
;BMP DECODER
	call	bmptoimg
	mov	[save_flag],1
	jmp	no_unpakcing_file_1

no_unpakcing_bmp_file_1:
	cmp	[type],'GI'
	jne	no_unpakcing_file_1
;GIF DECODER
	sub	edi,8
	call	ReadGIF
	mov	[save_flag],1

no_unpakcing_file_1:
	call	MovePictureToWorkScreen
	mov	[Scroll1CoordinatX],9
	mov	[Scroll2CoordinatY],89
	ret