From: Søren Sandmann Pedersen <[email protected]>
The rectangles in the clip region set in set_general_properties()
would sometimes overflow, which would lead to messages like these:
*** BUG ***
In pixman_region32_union_rect: Invalid rectangle passed
Set a breakpoint on '_pixman_log_error' to debug
when the micro version number of pixman is even.
Fix this by detecting the overflow and clamping such that the x2/y2
coordinates are less than INT32_MAX.
---
test/stress-test.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/test/stress-test.c b/test/stress-test.c
index 54ab1c5..edcfe09 100644
--- a/test/stress-test.c
+++ b/test/stress-test.c
@@ -468,6 +468,11 @@ set_general_properties (pixman_image_t *image,
pixman_bool_t allow_alpha_map)
width = lcg_rand_n (image->bits.width) - x + 10;
height = lcg_rand_n (image->bits.height) - y + 10;
+ if (width + x < x)
+ width = INT32_MAX - x;
+ if (height + y < y)
+ height = INT32_MAX - y;
+
pixman_region32_union_rect (
®ion, ®ion, x, y, width, height);
}
--
1.7.4
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