diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-03-20 19:14:28 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2012-03-20 19:16:36 +0000 |
| commit | 86a89a8c1de88f279b306ac8e3461773895aa7a2 (patch) | |
| tree | 12d647765ec72aa1e75d7f9999a0cd82da53a31f /src | |
| parent | 0a778d974f2dca2555711ef79e738cb0614b2a3f (diff) | |
win32: Check for damage before blitting
During the surface flush, we reduce any pending damage and then blit. If
no damage had been accrued then the damage->region would be NULL leading
to a segfault.
Patch suggested by Szuromi Gábor.
Reported-by: Szuromi Gábor <kukkerman@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47605
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src')
| -rw-r--r-- | src/win32/cairo-win32-display-surface.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/win32/cairo-win32-display-surface.c b/src/win32/cairo-win32-display-surface.c index 43862aa38..9e18f8d4b 100644 --- a/src/win32/cairo-win32-display-surface.c +++ b/src/win32/cairo-win32-display-surface.c @@ -516,7 +516,7 @@ _cairo_win32_display_surface_flush (void *abstract_surface) 0, 0, SRCCOPY)) status = _cairo_win32_print_gdi_error (__FUNCTION__); - } else { + } else if (damage->region) { int n = cairo_region_num_rectangles (damage->region), i; for (i = 0; i < n; i++) { cairo_rectangle_int_t rect; |