Subversion Repositories planix.SVN

Rev

Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
#include <u.h>
2 
#include <libc.h>
3 
#include <draw.h>
4 
 
5 
Image*
6 
allocimagemix(Display *d, ulong color1, ulong color3)
7 
{
8 
	Image *t, *b;
9 
	static Image *qmask;
10 
 
11 
	if(qmask == nil)
12 
		qmask = allocimage(d, Rect(0,0,1,1), GREY8, 1, 0x3F3F3FFF);
13 
 
14 
	if(d->screenimage->depth <= 8){	/* create a 2×2 texture */
15 
		t = allocimage(d, Rect(0,0,1,1), d->screenimage->chan, 0, color1);
16 
		if(t == nil)
17 
			return nil;
18 
 
19 
		b = allocimage(d, Rect(0,0,2,2), d->screenimage->chan, 1, color3);
20 
		if(b == nil){
21 
			freeimage(t);
22 
			return nil;
23 
		}
24 
 
25 
		draw(b, Rect(0,0,1,1), t, nil, ZP);
26 
		freeimage(t);
27 
		return b;
28 
	}else{	/* use a solid color, blended using alpha */
29 
		t = allocimage(d, Rect(0,0,1,1), d->screenimage->chan, 1, color1);
30 
		if(t == nil)
31 
			return nil;
32 
 
33 
		b = allocimage(d, Rect(0,0,1,1), d->screenimage->chan, 1, color3);
34 
		if(b == nil){
35 
			freeimage(t);
36 
			return nil;
37 
		}
38 
 
39 
		draw(b, b->r, t, qmask, ZP);
40 
		freeimage(t);
41 
		return b;
42 
	}
43 
}