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 "base/memory/weak_ptr.h"
   9 #include "ui/ozone/demo/gl_renderer.h"
  10
  11 namespace gfx {
  12 class GLImage;
  13 }  // namespace gfx
  14
  15 namespace ui {
  16
  17 class GpuMemoryBufferFactoryOzoneNativeBuffer;
  18
  19 class SurfacelessGlRenderer : public GlRenderer {
  20  public:
  21   SurfacelessGlRenderer(
  22       gfx::AcceleratedWidget widget,
  23       const gfx::Size& size,
  24       GpuMemoryBufferFactoryOzoneNativeBuffer* buffer_factory);
  25   ~SurfacelessGlRenderer() override;
  26
  27   // Renderer:
  28   bool Initialize() override;
  29   void RenderFrame() override;
  30
  31  private:
  32   // Called by swap buffers when the actual swap finished.
  33   void OnSwapBuffersAck();
  34
  35   // GlRenderer:
  36   scoped_refptr<gfx::GLSurface> CreateSurface() override;
  37
  38   class BufferWrapper {
  39    public:
  40     BufferWrapper();
  41     ~BufferWrapper();
  42
  43     bool Initialize(GpuMemoryBufferFactoryOzoneNativeBuffer* buffer_factory,
  44                     gfx::AcceleratedWidget widget,
  45                     const gfx::Size& size);
  46     void BindFramebuffer();
  47     void SchedulePlane();
  48
  49    private:
  50     gfx::AcceleratedWidget widget_;
  51     gfx::Size size_;
  52
  53     scoped_refptr<gfx::GLImage> image_;
  54     unsigned int gl_fb_;
  55     unsigned int gl_tex_;
  56   };
  57
  58   GpuMemoryBufferFactoryOzoneNativeBuffer* buffer_factory_;
  59
  60   BufferWrapper buffers_[2];
  61   int back_buffer_;
  62   bool is_swapping_buffers_;
  63
  64   base::WeakPtrFactory<SurfacelessGlRenderer> weak_ptr_factory_;
  65
  66   DISALLOW_COPY_AND_ASSIGN(SurfacelessGlRenderer);
  67 };
  68
  69 }  // namespace ui
  70
  71 #endif  // UI_OZONE_DEMO_SURFACELESS_GL_RENDERER_H_