| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_OZONE_PUBLIC_GL_OZONE_H_ |
| #define UI_OZONE_PUBLIC_GL_OZONE_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "ui/gfx/geometry/size.h" |
| #include "ui/gfx/native_widget_types.h" |
| #include "ui/gl/gl_implementation.h" |
| #include "ui/gl/gpu_preference.h" |
| #include "ui/ozone/ozone_base_export.h" |
| |
| namespace gl { |
| class GLContext; |
| struct GLContextAttribs; |
| class GLShareGroup; |
| class GLSurface; |
| } |
| |
| namespace ui { |
| |
| // Interface that has all of the required methods for an Ozone platform to |
| // implement a GL implementation. Functions in gl_factory.h and gl_initializer.h |
| // will delegate to functions in this interface. |
| class OZONE_BASE_EXPORT GLOzone { |
| public: |
| virtual ~GLOzone() {} |
| |
| // Initializes static GL bindings and sets GL implementation. |
| virtual bool InitializeStaticGLBindings( |
| gl::GLImplementation implementation) = 0; |
| |
| // Performs any one off initialization for GL implementation. |
| virtual bool InitializeGLOneOffPlatform() = 0; |
| |
| // Initializes static debug GL bindings. |
| virtual void InitializeDebugGLBindings() = 0; |
| |
| // Clears static GL bindings. |
| virtual void ShutdownGL() = 0; |
| |
| // Returns information about the GL window system binding implementation (eg. |
| // EGL, GLX, WGL). Returns true if the information was retrieved successfully. |
| virtual bool GetGLWindowSystemBindingInfo( |
| gl::GLWindowSystemBindingInfo* info) = 0; |
| |
| // Creates a GL context that is compatible with the given surface. |
| // |share_group|, if not null, is a group of contexts which the internally |
| // created OpenGL context shares textures and other resources. |
| virtual scoped_refptr<gl::GLContext> CreateGLContext( |
| gl::GLShareGroup* share_group, |
| gl::GLSurface* compatible_surface, |
| const gl::GLContextAttribs& attribs) = 0; |
| |
| // Creates a GL surface that renders directly to a view. |
| virtual scoped_refptr<gl::GLSurface> CreateViewGLSurface( |
| gfx::AcceleratedWidget window) = 0; |
| |
| // Creates a GL surface that renders directly into a window with surfaceless |
| // semantics. The surface is not backed by any buffers and is used for |
| // overlay-only displays. This will return null if surfaceless mode is |
| // unsupported. |
| virtual scoped_refptr<gl::GLSurface> CreateSurfacelessViewGLSurface( |
| gfx::AcceleratedWidget window) = 0; |
| |
| // Creates a GL surface used for offscreen rendering. |
| virtual scoped_refptr<gl::GLSurface> CreateOffscreenGLSurface( |
| const gfx::Size& size) = 0; |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_OZONE_PUBLIC_GL_OZONE_H_ |