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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 #ifndef UI_GL_GL_CONTEXT_H_ | 5 #ifndef UI_GL_GL_CONTEXT_H_ |
6 #define UI_GL_GL_CONTEXT_H_ | 6 #define UI_GL_GL_CONTEXT_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <string> | 9 #include <string> |
10 #include <vector> | 10 #include <vector> |
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26 class GLContextVirtual; | 26 class GLContextVirtual; |
27 } // namespace gpu | 27 } // namespace gpu |
28 | 28 |
29 namespace gl { | 29 namespace gl { |
30 | 30 |
31 class GLSurface; | 31 class GLSurface; |
32 class GPUTiming; | 32 class GPUTiming; |
33 class GPUTimingClient; | 33 class GPUTimingClient; |
34 struct GLVersionInfo; | 34 struct GLVersionInfo; |
35 | 35 |
36 struct GLContextAttribs { | |
37 GpuPreference gpu_preference = PreferIntegratedGpu; | |
38 bool bind_generates_resource = true; | |
39 bool webgl_compatibility_context = false; | |
40 }; | |
41 | |
42 // Encapsulates an OpenGL context, hiding platform specific management. | 36 // Encapsulates an OpenGL context, hiding platform specific management. |
43 class GL_EXPORT GLContext : public base::RefCounted<GLContext> { | 37 class GL_EXPORT GLContext : public base::RefCounted<GLContext> { |
44 public: | 38 public: |
45 explicit GLContext(GLShareGroup* share_group); | 39 explicit GLContext(GLShareGroup* share_group); |
46 | 40 |
47 // Initializes the GL context to be compatible with the given surface. The GL | 41 // Initializes the GL context to be compatible with the given surface. The GL |
48 // context can be made with other surface's of the same type. The compatible | 42 // context can be made with other surface's of the same type. The compatible |
49 // surface is only needed for certain platforms like WGL, OSMesa and GLX. It | 43 // surface is only needed for certain platforms like WGL, OSMesa and GLX. It |
50 // should be specific for all platforms though. | 44 // should be specific for all platforms though. |
51 virtual bool Initialize(GLSurface* compatible_surface, | 45 virtual bool Initialize( |
52 const GLContextAttribs& attribs) = 0; | 46 GLSurface* compatible_surface, GpuPreference gpu_preference) = 0; |
53 | 47 |
54 // Makes the GL context and a surface current on the current thread. | 48 // Makes the GL context and a surface current on the current thread. |
55 virtual bool MakeCurrent(GLSurface* surface) = 0; | 49 virtual bool MakeCurrent(GLSurface* surface) = 0; |
56 | 50 |
57 // Releases this GL context and surface as current on the current thread. | 51 // Releases this GL context and surface as current on the current thread. |
58 virtual void ReleaseCurrent(GLSurface* surface) = 0; | 52 virtual void ReleaseCurrent(GLSurface* surface) = 0; |
59 | 53 |
60 // Returns true if this context and surface is current. Pass a null surface | 54 // Returns true if this context and surface is current. Pass a null surface |
61 // if the current surface is not important. | 55 // if the current surface is not important. |
62 virtual bool IsCurrent(GLSurface* surface) = 0; | 56 virtual bool IsCurrent(GLSurface* surface) = 0; |
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198 std::unique_ptr<GPUTiming> gpu_timing_; | 192 std::unique_ptr<GPUTiming> gpu_timing_; |
199 DISALLOW_COPY_AND_ASSIGN(GLContextReal); | 193 DISALLOW_COPY_AND_ASSIGN(GLContextReal); |
200 }; | 194 }; |
201 | 195 |
202 // Wraps GLContext in scoped_refptr and tries to initializes it. Returns a | 196 // Wraps GLContext in scoped_refptr and tries to initializes it. Returns a |
203 // scoped_refptr containing the initialized GLContext or nullptr if | 197 // scoped_refptr containing the initialized GLContext or nullptr if |
204 // initialization fails. | 198 // initialization fails. |
205 GL_EXPORT scoped_refptr<GLContext> InitializeGLContext( | 199 GL_EXPORT scoped_refptr<GLContext> InitializeGLContext( |
206 scoped_refptr<GLContext> context, | 200 scoped_refptr<GLContext> context, |
207 GLSurface* compatible_surface, | 201 GLSurface* compatible_surface, |
208 const GLContextAttribs& attribs); | 202 GpuPreference gpu_preference); |
209 | 203 |
210 } // namespace gl | 204 } // namespace gl |
211 | 205 |
212 #endif // UI_GL_GL_CONTEXT_H_ | 206 #endif // UI_GL_GL_CONTEXT_H_ |
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