[cairo-bugs] [Bug 35113] provide backend surface type info for sub surfaces

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35113

--- Comment #3 from Uli Schlachter <psychon at znc.in> 2012-01-17 10:14:10 PST ---
I think the following commit is relevant here:

commit ba855a12e8d686f2137f82d317791f3ec4a68fc0
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Oct 14 16:01:27 2011 +0100

    xlib-xp

diff --git a/src/cairo-surface-subsurface.c b/src/cairo-surface-subsurface.c
index 48d10fb..b93604f 100644
--- a/src/cairo-surface-subsurface.c
+++ b/src/cairo-surface-subsurface.c
@@ -577,6 +577,7 @@ cairo_surface_create_for_rectangle (cairo_surface_t
*target,
     }

     surface->target = cairo_surface_reference (target);
+    surface->base.type = surface->target->type;

     return &surface->base;
 }
@@ -609,6 +610,7 @@ _cairo_surface_create_for_rectangle_int (cairo_surface_t
*target,
     surface->extents.x += target->device_transform.x0;
     surface->extents.y += target->device_transform.y0;
     surface->target = cairo_surface_reference (target);
+    surface->base.type = surface->target->type;

     return &surface->base;
 }

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