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,
  19                         const scoped_refptr<gfx::GLSurface>& surface,
  20                         const gfx::Size& size);
  21   ~SurfacelessGlRenderer() override;
  22
  23   // Renderer:
  24   bool Initialize() override;
  25
  26  private:
  27   // GlRenderer:
  28   void RenderFrame() override;
  29   void PostRenderFrameTask(gfx::SwapResult result) override;
  30
  31   class BufferWrapper {
  32    public:
  33     BufferWrapper();
  34     ~BufferWrapper();
  35
  36     gfx::GLImage* image() const { return image_.get(); }
  37
  38     bool Initialize(gfx::AcceleratedWidget widget, const gfx::Size& size);
  39     void BindFramebuffer();
  40
  41    private:
  42     gfx::AcceleratedWidget widget_ = gfx::kNullAcceleratedWidget;
  43     gfx::Size size_;
  44
  45     scoped_refptr<gfx::GLImage> image_;
  46     unsigned int gl_fb_ = 0;
  47     unsigned int gl_tex_ = 0;
  48   };
  49
  50   scoped_ptr<BufferWrapper> buffers_[2];
  51   int back_buffer_ = 0;
  52
  53   base::WeakPtrFactory<SurfacelessGlRenderer> weak_ptr_factory_;
  54
  55   DISALLOW_COPY_AND_ASSIGN(SurfacelessGlRenderer);
  56 };
  57
  58 }  // namespace ui
  59
  60 #endif  // UI_OZONE_DEMO_SURFACELESS_GL_RENDERER_H_