uxn/projects/examples/gui.picture.usm

( GUI Picture )

%RTN { JMP2r }
%8+  { #0008 ADD2 }

;color { byte 1 }
;position { x 2 y 2 }
;size { width 2 height 2 }

|0100 ;System { vector 2 pad 6 r 2 g 2 b 2 }
|0110 ;Console { vector 2 pad 6 char 1 byte 1 short 2 string 2 }
|0120 ;Screen { vector 2 width 2 height 2 pad 2 x 2 y 2 addr 2 color 1 }
|0170 ;File { vector 2 result 2 offset 2 pad 2 name 2 length 2 load 2 save 2 }

( program )

|0200

	( theme ) #037a =System.r #032a =System.g #052a =System.b

	( background ) ,checker_icn #22 ,cover-pattern JSR2

	( load ) ,icn1_path =File.name #1800 =File.length ,image =File.load
	( draw ) #0008 #0008 #0100 #00c0 #27 ,image ,draw-icn JSR2

	( load ) ,icn2_path =File.name #0800 =File.length ,image =File.load
	( draw ) #0010 #0078 #0080 #0080 #27 ,image ,draw-icn JSR2

	( load ) ,chr1_path =File.name #4000 =File.length ,image =File.load
	( draw ) #00a8 #0010 #0100 #0100 #4f ,image ,draw-chr JSR2

	( load ) ,chr2_path =File.name #0900 =File.length ,image =File.load
	( draw ) #0088 #0088 #0060 #0060 #41 ,image ,draw-chr JSR2

BRK

@draw-icn ( x y width height color addr -- )
	
	( load ) =Screen.addr =color =size.height =size.width =position.y =position.x
	#0000 ~size.height
	$ver
		( save ) OVR2 ~position.y ADD2 =Screen.y
		#0000 ~size.width
		$hor
			( save ) OVR2 ~position.x ADD2 =Screen.x
			( draw ) ~color =Screen.color
			( incr ) ~Screen.addr 8+ =Screen.addr
			( incr ) SWP2 8+ SWP2
			OVR2 OVR2 LTH2 ^$hor JNZ
		POP2 POP2
		( incr ) SWP2 8+ SWP2
		OVR2 OVR2 LTH2 ^$ver JNZ
	POP2 POP2

RTN

@draw-chr ( x y width height color addr -- )
	
	( load ) =Screen.addr =color =size.height =size.width =position.y =position.x
	#0000 ~size.height
	$ver
		( save ) OVR2 ~position.y ADD2 =Screen.y
		#0000 ~size.width
		$hor
			( save ) OVR2 ~position.x ADD2 =Screen.x
			( draw ) ~color =Screen.color
			( incr ) ~Screen.addr #0010 ADD2 =Screen.addr
			( incr ) SWP2 8+ SWP2
			OVR2 OVR2 LTH2 ^$hor JNZ
		POP2 POP2
		( incr ) SWP2 8+ SWP2
		OVR2 OVR2 LTH2 ^$ver JNZ
	POP2 POP2

RTN

@cover-pattern ( addr color -- )
	
	( load ) =color =Screen.addr
	#0000 ~Screen.height
	$ver
		( save ) OVR2 =Screen.y
		#0000 ~Screen.width
		$hor
			( save ) OVR2 =Screen.x
			( draw ) ~color =Screen.color
			( incr ) SWP2 8+ SWP2
			OVR2 OVR2 LTH2 ^$hor JNZ
		POP2 POP2
		( incr ) SWP2 8+ SWP2
		OVR2 OVR2 LTH2 ^$ver JNZ
	POP2 POP2

RTN

@checker_icn [ f0f0 f0f0 0f0f 0f0f ]

@icn1_path      [ projects/pictures/ergo100x0c0.bit 00 ]
@icn2_path      [ projects/pictures/dafu80x80.bit 00 ]
@chr1_path      [ projects/pictures/zerotwo2020.chr 00 ]
@chr2_path      [ projects/pictures/felix0cx0c.chr 00 ]

@image [ ]