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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/gl/gl_context.h" | 5 #include "ui/gl/gl_context.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "base/sys_info.h" | 9 #include "base/sys_info.h" |
10 #include "ui/gl/gl_bindings.h" | 10 #include "ui/gl/gl_bindings.h" |
11 #include "ui/gl/gl_context_egl.h" | 11 #include "ui/gl/gl_context_egl.h" |
12 #include "ui/gl/gl_context_stub.h" | 12 #include "ui/gl/gl_context_stub.h" |
13 #include "ui/gl/gl_implementation.h" | 13 #include "ui/gl/gl_implementation.h" |
14 #include "ui/gl/gl_surface.h" | 14 #include "ui/gl/gl_surface.h" |
15 | 15 |
16 namespace gfx { | 16 namespace gfx { |
17 | 17 |
18 namespace { | 18 namespace { |
19 | 19 |
20 // Used to render into an already current context+surface, | 20 // Used to render into an already current context+surface, |
21 // that we do not have ownership of (draw callback). | 21 // that we do not have ownership of (draw callback). |
22 class GLNonOwnedContext : public GLContext { | 22 class GLNonOwnedContext : public GLContext { |
23 public: | 23 public: |
24 GLNonOwnedContext(); | 24 GLNonOwnedContext(GLShareGroup* share_group); |
25 | 25 |
26 // Implement GLContext. | 26 // Implement GLContext. |
27 virtual bool Initialize(GLSurface* compatible_surface, | 27 virtual bool Initialize(GLSurface* compatible_surface, |
28 GpuPreference gpu_preference) OVERRIDE { | 28 GpuPreference gpu_preference) OVERRIDE { |
29 return true; | 29 return true; |
30 } | 30 } |
31 virtual void Destroy() OVERRIDE {} | 31 virtual void Destroy() OVERRIDE {} |
32 virtual bool MakeCurrent(GLSurface* surface) OVERRIDE; | 32 virtual bool MakeCurrent(GLSurface* surface) OVERRIDE; |
33 virtual void ReleaseCurrent(GLSurface* surface) OVERRIDE {} | 33 virtual void ReleaseCurrent(GLSurface* surface) OVERRIDE {} |
34 virtual bool IsCurrent(GLSurface* surface) OVERRIDE { return true; } | 34 virtual bool IsCurrent(GLSurface* surface) OVERRIDE { return true; } |
35 virtual void* GetHandle() OVERRIDE { return NULL; } | 35 virtual void* GetHandle() OVERRIDE { return NULL; } |
36 virtual void SetSwapInterval(int interval) OVERRIDE {} | 36 virtual void SetSwapInterval(int interval) OVERRIDE {} |
37 virtual std::string GetExtensions() OVERRIDE; | 37 virtual std::string GetExtensions() OVERRIDE; |
38 | 38 |
39 protected: | 39 protected: |
40 virtual ~GLNonOwnedContext() {} | 40 virtual ~GLNonOwnedContext() {} |
41 | 41 |
42 private: | 42 private: |
43 DISALLOW_COPY_AND_ASSIGN(GLNonOwnedContext); | 43 DISALLOW_COPY_AND_ASSIGN(GLNonOwnedContext); |
44 }; | 44 }; |
45 | 45 |
46 GLNonOwnedContext::GLNonOwnedContext() : GLContext(NULL) {} | 46 GLNonOwnedContext::GLNonOwnedContext(GLShareGroup* share_group) |
| 47 : GLContext(share_group) {} |
47 | 48 |
48 bool GLNonOwnedContext::MakeCurrent(GLSurface* surface) { | 49 bool GLNonOwnedContext::MakeCurrent(GLSurface* surface) { |
49 SetCurrent(this, surface); | 50 SetCurrent(this, surface); |
50 SetRealGLApi(); | 51 SetRealGLApi(); |
51 return true; | 52 return true; |
52 } | 53 } |
53 | 54 |
54 std::string GLNonOwnedContext::GetExtensions() { | 55 std::string GLNonOwnedContext::GetExtensions() { |
55 return GLContext::GetExtensions(); | 56 return GLContext::GetExtensions(); |
56 } | 57 } |
57 | 58 |
58 } // anonymous namespace | 59 } // anonymous namespace |
59 | 60 |
60 // static | 61 // static |
61 scoped_refptr<GLContext> GLContext::CreateGLContext( | 62 scoped_refptr<GLContext> GLContext::CreateGLContext( |
62 GLShareGroup* share_group, | 63 GLShareGroup* share_group, |
63 GLSurface* compatible_surface, | 64 GLSurface* compatible_surface, |
64 GpuPreference gpu_preference) { | 65 GpuPreference gpu_preference) { |
65 if (GetGLImplementation() == kGLImplementationMockGL) | 66 if (GetGLImplementation() == kGLImplementationMockGL) |
66 return scoped_refptr<GLContext>(new GLContextStub()); | 67 return scoped_refptr<GLContext>(new GLContextStub()); |
67 | 68 |
68 scoped_refptr<GLContext> context; | 69 scoped_refptr<GLContext> context; |
69 if (compatible_surface->GetHandle()) | 70 if (compatible_surface->GetHandle()) |
70 context = new GLContextEGL(share_group); | 71 context = new GLContextEGL(share_group); |
71 else | 72 else |
72 context = new GLNonOwnedContext(); | 73 context = new GLNonOwnedContext(share_group); |
73 if (!context->Initialize(compatible_surface, gpu_preference)) | 74 if (!context->Initialize(compatible_surface, gpu_preference)) |
74 return NULL; | 75 return NULL; |
75 return context; | 76 return context; |
76 } | 77 } |
77 | 78 |
78 bool GLContextEGL::GetTotalGpuMemory(size_t* bytes) { | 79 bool GLContextEGL::GetTotalGpuMemory(size_t* bytes) { |
79 DCHECK(bytes); | 80 DCHECK(bytes); |
80 *bytes = 0; | 81 *bytes = 0; |
81 // We can't query available GPU memory from the system on Android, | 82 // We can't query available GPU memory from the system on Android, |
82 // but the dalvik heap size give us a good estimate of available | 83 // but the dalvik heap size give us a good estimate of available |
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105 limit = heap_size / 2; | 106 limit = heap_size / 2; |
106 else | 107 else |
107 limit = (heap_size + (heap_growth * 2)) / 4; | 108 limit = (heap_size + (heap_growth * 2)) / 4; |
108 dalvik_limit = limit * 1024 * 1024; | 109 dalvik_limit = limit * 1024 * 1024; |
109 } | 110 } |
110 *bytes = dalvik_limit; | 111 *bytes = dalvik_limit; |
111 return true; | 112 return true; |
112 } | 113 } |
113 | 114 |
114 } | 115 } |
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