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 GpuMemoryBufferFactoryOzoneNativePixmap;
  17
  18 class SurfacelessGlRenderer : public GlRenderer {
  19  public:
  20   SurfacelessGlRenderer(
  21       gfx::AcceleratedWidget widget,
  22       const gfx::Size& size,
  23       GpuMemoryBufferFactoryOzoneNativePixmap* buffer_factory);
  24   ~SurfacelessGlRenderer() override;
  25
  26   // Renderer:
  27   bool Initialize() override;
  28
  29  private:
  30   // GlRenderer:
  31   void RenderFrame() override;
  32   scoped_refptr<gfx::GLSurface> CreateSurface() override;
  33
  34   class BufferWrapper {
  35    public:
  36     BufferWrapper();
  37     ~BufferWrapper();
  38
  39     bool Initialize(GpuMemoryBufferFactoryOzoneNativePixmap* buffer_factory,
  40                     gfx::AcceleratedWidget widget,
  41                     const gfx::Size& size);
  42     void BindFramebuffer();
  43     void SchedulePlane();
  44
  45    private:
  46     gfx::AcceleratedWidget widget_ = gfx::kNullAcceleratedWidget;
  47     gfx::Size size_;
  48
  49     scoped_refptr<gfx::GLImage> image_;
  50     unsigned int gl_fb_ = 0;
  51     unsigned int gl_tex_ = 0;
  52   };
  53
  54   GpuMemoryBufferFactoryOzoneNativePixmap* buffer_factory_;
  55
  56   BufferWrapper buffers_[2];
  57   int back_buffer_ = 0;
  58
  59   base::WeakPtrFactory<SurfacelessGlRenderer> weak_ptr_factory_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(SurfacelessGlRenderer);
  62 };
  63
  64 }  // namespace ui
  65
  66 #endif  // UI_OZONE_DEMO_SURFACELESS_GL_RENDERER_H_