1e7f22db3b
To consider that we've see a number of drivers that can struggle to get going and may produce a bad first frame we now force the first 2 frames to be full redraws. This became a serious issue after we started using clipped redraws more aggressively because we assumed that after the first frame the full framebuffer was valid and we only redraw the content that changes. With buggy drivers though, applications would be left with junk covering a lot of the stage until some event triggered a full redraw.
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/* Clutter.
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* An OpenGL based 'interactive canvas' library.
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* Authored By Matthew Allum <mallum@openedhand.com>
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* Copyright (C) 2006-2007 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __CLUTTER_STAGE_GLX_H__
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#define __CLUTTER_STAGE_GLX_H__
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#include <glib-object.h>
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#include <clutter/clutter-stage.h>
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <GL/glx.h>
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#include <GL/gl.h>
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#include "clutter-backend-glx.h"
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#include "../x11/clutter-stage-x11.h"
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_STAGE_GLX (_clutter_stage_glx_get_type ())
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#define CLUTTER_STAGE_GLX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_STAGE_GLX, ClutterStageGLX))
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#define CLUTTER_IS_STAGE_GLX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_STAGE_GLX))
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#define CLUTTER_STAGE_GLX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_STAGE_GLX, ClutterStageGLXClass))
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#define CLUTTER_IS_STAGE_GLX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_STAGE_GLX))
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#define CLUTTER_STAGE_GLX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_STAGE_GLX, ClutterStageGLXClass))
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typedef struct _ClutterStageGLX ClutterStageGLX;
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typedef struct _ClutterStageGLXClass ClutterStageGLXClass;
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struct _ClutterStageGLX
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{
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ClutterStageX11 parent_instance;
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int pending_swaps;
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GLXPixmap glxpixmap;
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GLXWindow glxwin;
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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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gboolean initialized_redraw_clip;
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ClutterGeometry bounding_redraw_clip;
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};
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struct _ClutterStageGLXClass
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{
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ClutterStageX11Class parent_class;
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};
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GType _clutter_stage_glx_get_type (void) G_GNUC_CONST;
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void _clutter_stage_glx_redraw (ClutterStageGLX *stage_glx,
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ClutterStage *stage);
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G_END_DECLS
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#endif /* __CLUTTER_STAGE_H__ */
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