[PATCH] gl: Set is_clear flag to FALSE after map_to_image

commit ad26c7e70e768032951409174193fc5bd70cacfb
Author: Dongyeon Kim <[email protected]>
Date:   Thu Jul 12 17:00:28 2012 +0900

    gl: Set is_clear flag to FALSE after map_to_image
    
    In _cairo_gl_surface_map_to_image(), the image surface data has been filled by glReadPixels,
    so is_clear flag should be set to FALSE.
    Otherwise mapped image surface does not get drawn as it returns true in nothing_to_do().

diff --git a/src/cairo-gl-surface.c b/src/cairo-gl-surface.c
index 6b9bc67..8b63fd2 100644
--- a/src/cairo-gl-surface.c
+++ b/src/cairo-gl-surface.c
@@ -1121,6 +1121,7 @@ _cairo_gl_surface_map_to_image (void      *abstract_surface,
 	    free(row);
     }
 
+    image->base.is_clear = FALSE;
     return image;
 }
-- 
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