ui/gl/gl_surface_cgl.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_GL_GL_SURFACE_CGL_H_
   6 #define UI_GL_GL_SURFACE_CGL_H_
   7
   8 #include "ui/gfx/size.h"
   9 #include "ui/gl/gl_surface.h"
  10
  11 namespace gfx {
  12
  13 // Base class for CGL surfaces.
  14 class GLSurfaceCGL : public GLSurface {
  15  public:
  16   GLSurfaceCGL();
  17
  18   static bool InitializeOneOff();
  19   static void* GetPixelFormat();
  20
  21  protected:
  22   virtual ~GLSurfaceCGL();
  23
  24  private:
  25   DISALLOW_COPY_AND_ASSIGN(GLSurfaceCGL);
  26 };
  27
  28 // A "no-op" surface. It is not required that a CGLContextObj have an
  29 // associated drawable (pbuffer or fullscreen context) in order to be
  30 // made current. Everywhere this surface type is used, we allocate an
  31 // FBO at the user level as the drawable of the associated context.
  32 class GL_EXPORT NoOpGLSurfaceCGL : public GLSurfaceCGL {
  33  public:
  34   explicit NoOpGLSurfaceCGL(const gfx::Size& size);
  35
  36   // Implement GLSurface.
  37   virtual bool Initialize() OVERRIDE;
  38   virtual void Destroy() OVERRIDE;
  39   virtual bool IsOffscreen() OVERRIDE;
  40   virtual bool SwapBuffers() OVERRIDE;
  41   virtual gfx::Size GetSize() OVERRIDE;
  42   virtual void* GetHandle() OVERRIDE;
  43   virtual void* GetDisplay() OVERRIDE;
  44
  45  protected:
  46   virtual ~NoOpGLSurfaceCGL();
  47
  48  private:
  49   gfx::Size size_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(NoOpGLSurfaceCGL);
  52 };
  53
  54 }  // namespace gfx
  55
  56 #endif  // UI_GL_GL_SURFACE_CGL_H_