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1 // Copyright (c) 2014 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_COMMON_GPU_NULL_TRANSPORT_SURFACE_H_ | |
6 #define CONTENT_COMMON_GPU_NULL_TRANSPORT_SURFACE_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "content/common/gpu/image_transport_surface.h" | |
10 #include "ui/gfx/native_widget_types.h" | |
11 | |
12 namespace content { | |
13 | |
14 // Used when the GPU process is not involved in frame transport, but frame | |
15 // resources are exchanged between client and target directly (such as in | |
16 // delegated rendering). | |
17 class NullTransportSurface : public PassThroughImageTransportSurface { | |
18 public: | |
19 NullTransportSurface(GpuChannelManager* manager, | |
20 GpuCommandBufferStub* stub, | |
21 const gfx::GLSurfaceHandle& handle); | |
22 | |
23 // gfx::GLSurfaceAdapter implementation. | |
24 bool Initialize() override; | |
25 void Destroy() override; | |
26 gfx::SwapResult SwapBuffers() override; | |
27 gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override; | |
28 bool OnMakeCurrent(gfx::GLContext* context) override; | |
29 | |
30 protected: | |
31 ~NullTransportSurface() override; | |
32 | |
33 void SendVSyncUpdateIfAvailable() override; | |
34 | |
35 private: | |
36 uint32 parent_client_id_; | |
37 | |
38 DISALLOW_COPY_AND_ASSIGN(NullTransportSurface); | |
39 }; | |
40 | |
41 } // namespace content | |
42 | |
43 #endif // CONTENT_COMMON_GPU_NULL_TRANSPORT_SURFACE_H_ | |
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