ui/ozone/demo/surfaceless_gl_renderer.h

   1 // Copyright 2014 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_OZONE_DEMO_SURFACELESS_GL_RENDERER_H_
   6 #define UI_OZONE_DEMO_SURFACELESS_GL_RENDERER_H_
   7
   8 #include "ui/ozone/demo/gl_renderer.h"
   9
  10 namespace gfx {
  11 class GLImage;
  12 }  // namespace gfx
  13
  14 namespace ui {
  15
  16 class SurfacelessGlRenderer : public GlRenderer {
  17  public:
  18   SurfacelessGlRenderer(gfx::AcceleratedWidget widget, const gfx::Size& size);
  19   ~SurfacelessGlRenderer() override;
  20
  21   // Renderer:
  22   bool Initialize() override;
  23
  24  private:
  25   // GlRenderer:
  26   void RenderFrame() override;
  27   scoped_refptr<gfx::GLSurface> CreateSurface() override;
  28
  29   class BufferWrapper {
  30    public:
  31     BufferWrapper();
  32     ~BufferWrapper();
  33
  34     bool Initialize(gfx::AcceleratedWidget widget, const gfx::Size& size);
  35     void BindFramebuffer();
  36     void SchedulePlane();
  37
  38    private:
  39     gfx::AcceleratedWidget widget_ = gfx::kNullAcceleratedWidget;
  40     gfx::Size size_;
  41
  42     scoped_refptr<gfx::GLImage> image_;
  43     unsigned int gl_fb_ = 0;
  44     unsigned int gl_tex_ = 0;
  45   };
  46
  47   BufferWrapper buffers_[2];
  48   int back_buffer_ = 0;
  49
  50   base::WeakPtrFactory<SurfacelessGlRenderer> weak_ptr_factory_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(SurfacelessGlRenderer);
  53 };
  54
  55 }  // namespace ui
  56
  57 #endif  // UI_OZONE_DEMO_SURFACELESS_GL_RENDERER_H_