cogl: Support multiple fallbacks in cogl_offscreen_new_to_texture()

The Intel drivers in Mesa 7.6 (and possibly earlier versions) don't
support creating FBOs with a stencil buffer but without a depth
buffer. This reworks framebuffer allocation so that we try a number
of fallback options before failing.

The options we try in order are:
- the same options that were sucessful last time if available
- combined depth and stencil
- separate depth and stencil
- just stencil, no depth
- just depth, no stencil
- neither depth or stencil

1 files changed, 1 insertions, 1 deletions

diff --git a/cogl/cogl-framebuffer-private.h b/cogl/cogl-framebuffer-private.h
index 946adfe2..1f21a670 100644
--- a/cogl/cogl-framebuffer-private.h
+++ b/cogl/cogl-framebuffer-private.h
@@ -56,7 +56,7 @@ typedef struct _CoglOffscreen
 {
   CoglFramebuffer  _parent;
   GLuint          fbo_handle;
-  GLuint          gl_stencil_handle;
+  GSList          *renderbuffers;
   CoglHandle      texture;
 } CoglOffscreen;