(svn r6351) -Fix: Due to some off-by-one errors the width or height of a clipping rectangle could become 0, which isn't sensible. This should fix a very rare and hard to trigger assertion in GfxFillRect()
--- a/gfx.c Sat Sep 02 21:16:46 2006 +0000
+++ b/gfx.c Sat Sep 02 21:52:06 2006 +0000
@@ -1862,7 +1862,7 @@
if ((left -= o->left) < 0) {
width += left;
- if (width < 0) return false;
+ if (width <= 0) return false;
n->left = -left;
left = 0;
} else {
@@ -1871,13 +1871,13 @@
if (width > o->width - left) {
width = o->width - left;
- if (width < 0) return false;
+ if (width <= 0) return false;
}
n->width = width;
if ((top -= o->top) < 0) {
height += top;
- if (height < 0) return false;
+ if (height <= 0) return false;
n->top = -top;
top = 0;
} else {
@@ -1888,7 +1888,7 @@
if (height > o->height - top) {
height = o->height - top;
- if (height < 0) return false;
+ if (height <= 0) return false;
}
n->height = height;