overlay/x11-libs/cairo/files/cairo-1.12.10-xshm-corruption.patch
2013-10-31 04:36:15 +01:00

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From c006b886d28a772d7a62cec52ab7e0c8196c36f6 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 29 Jan 2013 03:01:31 +0000
Subject: xlib/shm: Force synchronisation for scratch SHM image buffers
The scratch image buffers are used for uploads to the xserver and so we
must be careful not to overwrite active SHM segments. Unfortunately we
told the core SHM allocator that we would sync before using the images,
which was a lie.
Reported-by: Michael Natterer <mitch@gimp.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
diff --git a/src/cairo-xlib-surface-shm.c b/src/cairo-xlib-surface-shm.c
index 43cecdf..32c7033 100644
--- a/src/cairo-xlib-surface-shm.c
+++ b/src/cairo-xlib-surface-shm.c
@@ -1155,7 +1155,7 @@ _cairo_xlib_surface_create_shm__image (cairo_xlib_surface_t *surface,
return NULL;
return &_cairo_xlib_shm_surface_create (surface, format, width, height,
- TRUE, 0)->image.base;
+ FALSE, 0)->image.base;
}
cairo_surface_t *
--
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