60f20e8a7e
This allows us to report to the backend that the stage's back buffer has been trashed while handling picking. If the backend is keeping track of the contents of back buffers so it can minimize how much of the stage is redrawn then it needs to know when we do pick renders so it can invalidate the back buffer. Based on patch from Robert Bragg <robert@linux.intel.com> https://bugzilla.gnome.org/show_bug.cgi?id=669122
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
#ifndef __CLUTTER_STAGE_COGL_H__
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#define __CLUTTER_STAGE_COGL_H__
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#include <cairo.h>
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#include <clutter/clutter-backend.h>
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#include <clutter/clutter-stage.h>
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#ifdef COGL_HAS_X11_SUPPORT
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <X11/Xutil.h>
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#endif
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_STAGE_COGL (_clutter_stage_cogl_get_type ())
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#define CLUTTER_STAGE_COGL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_STAGE_COGL, ClutterStageCogl))
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#define CLUTTER_IS_STAGE_COGL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_STAGE_COGL))
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#define CLUTTER_STAGE_COGL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_STAGE_COGL, ClutterStageCoglClass))
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#define CLUTTER_IS_STAGE_COGL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_STAGE_COGL))
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#define CLUTTER_STAGE_COGL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_STAGE_COGL, ClutterStageCoglClass))
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typedef struct _ClutterStageCogl ClutterStageCogl;
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typedef struct _ClutterStageCoglClass ClutterStageCoglClass;
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struct _ClutterStageCogl
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{
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GObject parent_instance;
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/* the stage wrapper */
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ClutterStage *wrapper;
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/* back pointer to the backend */
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ClutterBackend *backend;
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CoglOnscreen *onscreen;
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gint pending_swaps;
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unsigned int swap_callback_id;
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/* We only enable clipped redraws after 2 frames, since we've seen
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* a lot of drivers can struggle to get going and may output some
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* junk frames to start with. */
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unsigned long frame_count;
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cairo_rectangle_int_t bounding_redraw_clip;
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guint initialized_redraw_clip : 1;
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/* TRUE if the current paint cycle has a clipped redraw. In that
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case bounding_redraw_clip specifies the the bounds. */
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guint using_clipped_redraw : 1;
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guint dirty_backbuffer : 1;
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};
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struct _ClutterStageCoglClass
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{
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GObjectClass parent_class;
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};
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GType _clutter_stage_cogl_get_type (void) G_GNUC_CONST;
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G_END_DECLS
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#endif /* __CLUTTER_STAGE_COGL_H__ */
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