From ed7c8e8d02c02bdbff1e88a6d8d1419f39af48ad Mon Sep 17 00:00:00 2001 From: rsc Date: Tue, 30 Sep 2003 17:47:42 +0000 Subject: Initial import. --- src/libdraw/allocimagemix.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 src/libdraw/allocimagemix.c (limited to 'src/libdraw/allocimagemix.c') diff --git a/src/libdraw/allocimagemix.c b/src/libdraw/allocimagemix.c new file mode 100644 index 00000000..09d60ec9 --- /dev/null +++ b/src/libdraw/allocimagemix.c @@ -0,0 +1,43 @@ +#include +#include +#include + +Image* +allocimagemix(Display *d, u32int color1, u32int color3) +{ + Image *t, *b; + static Image *qmask; + + if(qmask == nil) + qmask = allocimage(d, Rect(0,0,1,1), GREY8, 1, 0x3F3F3FFF); + + if(d->screenimage->depth <= 8){ /* create a 2×2 texture */ + t = allocimage(d, Rect(0,0,1,1), d->screenimage->chan, 0, color1); + if(t == nil) + return nil; + + b = allocimage(d, Rect(0,0,2,2), d->screenimage->chan, 1, color3); + if(b == nil){ + freeimage(t); + return nil; + } + + draw(b, Rect(0,0,1,1), t, nil, ZP); + freeimage(t); + return b; + }else{ /* use a solid color, blended using alpha */ + t = allocimage(d, Rect(0,0,1,1), d->screenimage->chan, 1, color1); + if(t == nil) + return nil; + + b = allocimage(d, Rect(0,0,1,1), d->screenimage->chan, 1, color3); + if(b == nil){ + freeimage(t); + return nil; + } + + draw(b, b->r, t, qmask, ZP); + freeimage(t); + return b; + } +} -- cgit v1.2.3