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xcb: Handle SHM exhaustion gracefully

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Avoid the assertion failure of creating an error surface for an internal
status by handling the expected UNSUPPORTED condition.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-11-18 10:01:55 +00:00
parent c8dca5dad6
commit 2283ab9698
1 changed files with 6 additions and 4 deletions
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10
src/cairo-xcb-surface.c
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@ -240,8 +240,12 @@ _cairo_xcb_surface_create_shm_image (cairo_xcb_connection_t *connection,
stride * height,
might_reuse,
&shm_info);
if (unlikely (status))
if (unlikely (status)) {
if (status == CAIRO_INT_STATUS_UNUSPPORTED)
return NULL;
return _cairo_surface_create_in_error (status);
}
image = _cairo_image_surface_create_with_pixman_format (shm_info->mem,
pixman_format,
@ -354,9 +358,7 @@ _get_image (cairo_xcb_surface_t *surface,
if (use_shm) {
image = _get_shm_image (surface, x, y, width, height);
if (image) {
/* XXX This only wants to catch SHM exhaustion,
* not other allocation failures. */
if (image->status != CAIRO_STATUS_NO_MEMORY) {
if (image->status) {
_cairo_xcb_connection_release (connection);
return image;
}