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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_COMMON_GPU_CLIENT_OFFSCREEN_CONTEXT_H_ | |
6 #define CONTENT_COMMON_GPU_CLIENT_OFFSCREEN_CONTEXT_H_ | |
7 | |
8 #include "base/memory/scoped_ptr.h" | |
9 #include "skia/ext/refptr.h" | |
10 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3 D.h" | |
11 | |
12 class GrContext; | |
13 | |
14 namespace content { | |
15 class OffscreenContext; | |
16 | |
17 class OffscreenContextClient { | |
18 public: | |
19 virtual WebKit::WebGraphicsContext3D* CreateOffscreenContext() = 0; | |
20 | |
21 virtual void DidLoseContext(OffscreenContext* offscreen_context) = 0; | |
22 virtual void DidCreateContext(OffscreenContext* offscreen_context, | |
23 bool success) = 0; | |
24 }; | |
25 | |
26 // This class lazily creates an offscreen GrContext that is bound to an | |
27 // offscreen context lazily created by its subclass implementation. | |
28 class OffscreenContext | |
29 : public WebKit::WebGraphicsContext3D::WebGraphicsContextLostCallback, | |
30 public WebKit::WebGraphicsContext3D:: | |
31 WebGraphicsMemoryAllocationChangedCallbackCHROMIUM { | |
32 public: | |
33 explicit OffscreenContext(OffscreenContextClient* client); | |
34 virtual ~OffscreenContext(); | |
35 | |
36 WebKit::WebGraphicsContext3D* Context3d(); | |
piman
2013/02/11 18:45:33
nit: Context3D for consistency?
danakj
2013/02/11 18:58:13
Hm, I've been using Context3d for function names a
| |
37 class GrContext* GrContext(); | |
38 | |
39 protected: | |
40 void SetGaneshContextMemoryLimit(bool nonzero_allocation); | |
41 | |
42 private: | |
43 // WebGraphicsContextLostCallback implementation. | |
44 virtual void onContextLost() OVERRIDE; | |
45 // WebGraphicsMemoryAllocationChangedCallbackCHROMIUM implementation. | |
46 virtual void onMemoryAllocationChanged( | |
47 WebKit::WebGraphicsMemoryAllocation allocation) OVERRIDE; | |
48 | |
49 // The limit of the number of textures we hold in the GrContext's | |
50 // bitmap->texture cache. | |
51 static const int kMaxGaneshTextureCacheCount = 2048; | |
52 // The limit of the bytes allocated toward textures in the GrContext's | |
53 // bitmap->texture cache. | |
54 static const size_t kMaxGaneshTextureCacheBytes = 96 * 1024 * 1024; | |
55 | |
56 OffscreenContextClient* client_; | |
57 scoped_ptr<WebKit::WebGraphicsContext3D> context3d_; | |
58 skia::RefPtr<class GrContext> gr_context_; | |
59 }; | |
60 | |
61 } // namespace content | |
62 | |
63 #endif // CONTENT_COMMON_GPU_CLIENT_OFFSCREEN_CONTEXT_H_ | |
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