[cogl/cogl-1.18] Revert "framebuffer: Don't mark the clip dirty at mid scene"

[Neil Roberts <nroberts src gnome org>]

commit d24f632d91d18909e2ca033e300b3679d927752f
Author: Neil Roberts <neil linux intel com>
Date:   Thu Nov 21 12:12:21 2013 +0000

    Revert "framebuffer: Don't mark the clip dirty at mid scene"
    
    This patch doesn't look right because now nothing will ever set
    clear_clip_dirty = TRUE. Presumably that would mean that if a
    rectangle is drawn and then the journal is flushed before the
    framebuffer is read, then it would think it could return the clear
    color even though it shouldn't.
    
    Perhaps a better approach would be to make a second version of
    _cogl_framebuffer_mark_mid_scene that doesn't set the clear_clip_dirty
    flag and call that from the journal instead. As this patch was pushed
    without review and without first going into the master branch I think
    it makes sense to just revert it and apply a new version to master.
    
    This reverts commit 3eb63f67a34420b30ef812a1610aa9e9a80a93a3.

 cogl/cogl-framebuffer.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/cogl/cogl-framebuffer.c b/cogl/cogl-framebuffer.c
index bc76bd4..4957b38 100644
--- a/cogl/cogl-framebuffer.c
+++ b/cogl/cogl-framebuffer.c
@@ -235,6 +235,7 @@ _cogl_framebuffer_clear_without_flush4f (CoglFramebuffer *framebuffer,
 void
 _cogl_framebuffer_mark_mid_scene (CoglFramebuffer *framebuffer)
 {
+  framebuffer->clear_clip_dirty = TRUE;
   framebuffer->mid_scene = TRUE;
 }