ui/ozone/platform/dri/gbm_surface.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_PLATFORM_DRI_GBM_SURFACE_H_
   6 #define UI_OZONE_PLATFORM_DRI_GBM_SURFACE_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "ui/gfx/geometry/size.h"
  11 #include "ui/ozone/platform/dri/gbm_surfaceless.h"
  12 #include "ui/ozone/public/surface_ozone_egl.h"
  13
  14 struct gbm_bo;
  15 struct gbm_surface;
  16
  17 namespace ui {
  18
  19 class DriBuffer;
  20 class DriWindowDelegate;
  21 class GbmWrapper;
  22
  23 // Extends the GBM surfaceless functionality and adds an implicit surface for
  24 // the primary plane. Arbitrary buffers can still be allocated and displayed as
  25 // overlay planes, however the primary plane is associated with the native
  26 // surface and is updated via an EGLSurface.
  27 class GbmSurface : public GbmSurfaceless {
  28  public:
  29   GbmSurface(DriWindowDelegate* window_delegate, GbmWrapper* gbm);
  30   ~GbmSurface() override;
  31
  32   bool Initialize();
  33
  34   // GbmSurfaceless:
  35   intptr_t GetNativeWindow() override;
  36   bool ResizeNativeWindow(const gfx::Size& viewport_size) override;
  37   bool OnSwapBuffers() override;
  38   bool OnSwapBuffersAsync(const SwapCompletionCallback& callback) override;
  39
  40  private:
  41   void OnSwapBuffersCallback(const SwapCompletionCallback& callback,
  42                              gbm_bo* pending_buffer);
  43
  44   GbmWrapper* gbm_;  // Not owned.
  45
  46   // The native GBM surface. In EGL this represents the EGLNativeWindowType.
  47   gbm_surface* native_surface_;
  48
  49   // Buffer currently used for scanout.
  50   gbm_bo* current_buffer_;
  51
  52   gfx::Size size_;
  53
  54   base::WeakPtrFactory<GbmSurface> weak_factory_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(GbmSurface);
  57 };
  58
  59 }  // namespace ui
  60
  61 #endif  // UI_OZONE_PLATFORM_DRI_GBM_SURFACE_H_