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1 // Copyright (c) 2013 The Chromium 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 CONTENT_PUBLIC_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_H_ | |
6 #define CONTENT_PUBLIC_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_H_ | |
7 | |
8 #include "ui/gfx/rect.h" | |
9 #include "ui/gfx/size.h" | |
10 | |
11 class SkCanvas; | |
12 | |
13 namespace gfx { | |
14 class Transform; | |
15 }; | |
16 | |
17 namespace content { | |
18 | |
19 class SynchronousCompositorClient; | |
20 | |
21 // Interface for embedders that wish to direct compositing operations | |
22 // synchronously under their own control. Only meaningful when the | |
23 // kEnableSyncrhonousRendererCompositor flag is specified. | |
24 class SynchronousCompositor { | |
25 public: | |
26 // Allows changing or resetting the client to NULL (this must be used if | |
27 // the client is being deleted prior to the DidDestroyCompositor() call | |
28 // being received by the client). Ownership of |client| remains with | |
29 // the caller. | |
30 virtual void SetClient(SynchronousCompositorClient* client) = 0; | |
31 | |
32 // Returns true if the compositor is fully initialized and ready to receive | |
33 // calls to DemandDrawHw(). | |
34 virtual bool IsHwReady() = 0; | |
35 | |
36 // "On demand" SW draw, into the supplied canvas (observing the transform | |
37 // and clip set there-in). | |
38 virtual bool DemandDrawSw(SkCanvas* canvas) = 0; | |
39 | |
40 // "On demand" hardware draw. The content is first clipped to |damage_area|, | |
41 // then transformed through |transform|, and finally clipped to |view_size|. | |
42 virtual bool DemandDrawHw( | |
43 gfx::Size view_size, | |
44 const gfx::Transform& transform, | |
45 gfx::Rect damage_area) = 0; | |
46 | |
47 protected: | |
48 virtual ~SynchronousCompositor() {} | |
49 }; | |
50 | |
51 } // namespace content | |
52 | |
53 #endif // CONTENT_PUBLIC_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_H_ | |
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