shithub: sce

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drw: align upper drawing boundary to scaled pixels

fixes selecting beyond drawn areas, fbvis out of bounds access

--- a/drw.c

+++ b/drw.c

@@ -350,6 +350,7 @@

 	fbh = min(mapheight * Tlsubheight * scale, Dy(screen->r));

 	selr = Rpt(screen->r.min, addpt(screen->r.min, Pt(fbws, fbh)));

 	p0 = Pt(screen->r.min.x + 8, screen->r.max.y - 3 * font->height);

+	p0.y -= (p0.y - screen->r.min.y) % scale;

 	panmax.x = max(Tlsubwidth * mapwidth * scale - Dx(screen->r), 0);

 	panmax.y = max(Tlsubheight * mapheight * scale - Dy(screen->r), 0);

 	if(p0.y < selr.max.y){