OLD | NEW |
---|---|
(Empty) | |
1 // Copyright (c) 2011 The Chromium OS Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef WINDOW_MANAGER_COMPOSITOR_XRENDER_XRENDER_VISITOR_H_ | |
6 #define WINDOW_MANAGER_COMPOSITOR_XRENDER_XRENDER_VISITOR_H_ | |
7 | |
8 #include <vector> | |
Daniel Erat
2011/04/05 01:35:06
delete this; you're not using it
marcheu
2011/04/05 02:07:42
Done.
| |
9 | |
10 #include "base/logging.h" | |
11 #include "base/scoped_ptr.h" | |
12 #include "window_manager/compositor/compositor.h" | |
13 #include "window_manager/compositor/real_compositor.h" | |
14 #include "window_manager/compositor/texture_data.h" | |
15 #include "window_manager/x11/x_connection.h" | |
16 | |
17 namespace window_manager { | |
18 | |
19 class ImageContainer; | |
20 | |
21 // This class visits an actor tree and draws it using the XRender extension. | |
22 class XRenderDrawVisitor : virtual public RealCompositor::ActorVisitor { | |
23 public: | |
24 XRenderDrawVisitor(RealCompositor* compositor, | |
25 Compositor::StageActor* stage); | |
26 virtual ~XRenderDrawVisitor(); | |
27 | |
28 void set_has_fullscreen_actor(bool has_fullscreen_actor) { | |
29 has_fullscreen_actor_ = has_fullscreen_actor; | |
30 } | |
31 void set_damaged_region(Rect damaged_region) { | |
32 damaged_region_ = damaged_region; | |
33 } | |
34 | |
35 void BindImage(const ImageContainer* container, | |
36 RealCompositor::ImageActor* actor); | |
37 | |
38 virtual void VisitActor(RealCompositor::Actor* actor) {} | |
39 virtual void VisitStage(RealCompositor::StageActor* actor); | |
40 virtual void VisitContainer(RealCompositor::ContainerActor* actor); | |
41 virtual void VisitImage(RealCompositor::ImageActor* actor); | |
42 virtual void VisitTexturePixmap(RealCompositor::TexturePixmapActor* actor); | |
43 virtual void VisitQuad(RealCompositor::QuadActor* actor); | |
44 | |
45 private: | |
46 // So it can get access to the config data. | |
47 friend class XRenderPixmapData; | |
48 | |
49 virtual bool FreeXResources(); | |
50 virtual bool AllocateXResources(Compositor::StageActor* stage); | |
51 | |
52 XWindow root_window_; | |
53 XConnection::WindowGeometry root_geometry_; | |
54 | |
55 XPicture back_picture_; | |
Daniel Erat
2011/04/05 01:35:06
third time i've asked: please add a comment descri
marcheu
2011/04/05 02:07:42
Done.
| |
56 XPixmap back_pixmap_; | |
57 | |
58 XPicture stage_picture_; | |
59 | |
60 // The visitor should not change settings in the compositor while visiting | |
61 // actors throughout the drawing process because the compositor may decide | |
62 // to skip drawing frames as an optimization. | |
63 RealCompositor* compositor_; // Not owned. | |
64 XConnection* xconn_; // Not owned. | |
65 RealCompositor::StageActor* stage_; // Not owned. | |
66 | |
67 // This is the cumulative opacity of all the ancestors of the | |
68 // currently visited node. It is recalculated each time we enter or | |
69 // leave a container node. | |
70 float ancestor_opacity_; | |
71 | |
72 // The rectangular region of the screen that is damaged in the frame. | |
73 // This information allows the draw visitor to perform partial updates. | |
74 Rect damaged_region_; | |
75 | |
76 // This is used to indicate whether the entire screen will be covered by an | |
77 // actor so we can optimize by not clearing the back buffer. | |
78 bool has_fullscreen_actor_; | |
79 | |
80 DISALLOW_COPY_AND_ASSIGN(XRenderDrawVisitor); | |
81 }; | |
82 | |
83 } // namespace window_manager | |
84 | |
85 #endif // WINDOW_MANAGER_COMPOSITOR_XRENDER_XRENDER_VISITOR_H_ | |
OLD | NEW |