Virtual GL

gpu/command_buffer/service/gl_context_virtual.h

+// Copyright (c) 2012 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 GPU_COMMAND_BUFFER_SERVICE_GL_CONTEXT_VIRTUAL_H_
+#define GPU_COMMAND_BUFFER_SERVICE_GL_CONTEXT_VIRTUAL_H_
+
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "gpu/gpu_export.h"
+#include "ui/gl/gl_context.h"
+
+namespace gfx {
+class Display;
+class GLSurface;
+class GLStateRestorer;
+}
+
+namespace gpu {
+namespace gles2 {
+class GLES2Decoder;
+}
+
+// Encapsulates a virtual OpenGL context.
+class GPU_EXPORT GLContextVirtual : public gfx::GLContext {
+ public:
+  GLContextVirtual(
+      gfx::GLShareGroup* share_group,
+      gfx::GLContext* shared_context,
+      gles2::GLES2Decoder* decoder);
+
+  gfx::Display* display();
+
+  // Implement GLContext.
+  virtual bool Initialize(
+      gfx::GLSurface* compatible_surface,
+      gfx::GpuPreference gpu_preference) OVERRIDE;
+  virtual void Destroy() OVERRIDE;
+  virtual bool MakeCurrent(gfx::GLSurface* surface) OVERRIDE;
+  virtual void ReleaseCurrent(gfx::GLSurface* surface) OVERRIDE;
+  virtual bool IsCurrent(gfx::GLSurface* surface) OVERRIDE;
+  virtual void* GetHandle() OVERRIDE;
+  virtual gfx::GLStateRestorer* GetGLStateRestorer() OVERRIDE;
+  virtual void SetSwapInterval(int interval) OVERRIDE;
+  virtual std::string GetExtensions() OVERRIDE;
+  virtual bool GetTotalGpuMemory(size_t* bytes) OVERRIDE;
+  virtual bool WasAllocatedUsingRobustnessExtension() OVERRIDE;
+
+ protected:
+  virtual ~GLContextVirtual();
+
+ private:
+  gfx::GLContext* shared_context_;
+  gfx::Display* display_;
+  scoped_ptr<gfx::GLStateRestorer> state_restorer_;
+
+  DISALLOW_COPY_AND_ASSIGN(GLContextVirtual);
+};
+
+}  // namespace gpu
+
+#endif  // GPU_COMMAND_BUFFER_SERVICE_GL_CONTEXT_VIRTUAL_H_