Ozone integration.

ui/ozone/platform/drm/gpu/drm_surface.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_OZONE_PLATFORM_DRM_GPU_DRM_SURFACE_H_
+#define UI_OZONE_PLATFORM_DRM_GPU_DRM_SURFACE_H_
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/geometry/size.h"
+#include "ui/gfx/skia_util.h"
+#include "ui/gfx/swap_result.h"
+#include "ui/ozone/ozone_export.h"
+#include "ui/ozone/public/surface_ozone_canvas.h"
+
+class SkImage;
+class SkSurface;
+
+namespace ui {
+
+class DrmBuffer;
+class DrmWindow;
+class HardwareDisplayController;
+
+class OZONE_EXPORT DrmSurface : public SurfaceOzoneCanvas {
+ public:
+  DrmSurface(DrmWindow* window_delegate);
+  ~DrmSurface() override;
+
+  // SurfaceOzoneCanvas:
+  skia::RefPtr<SkSurface> GetSurface() override;
+  void ResizeCanvas(const gfx::Size& viewport_size) override;
+  void PresentCanvas(const gfx::Rect& damage) override;
+  scoped_ptr<gfx::VSyncProvider> CreateVSyncProvider() override;
+
+ private:
+  void SchedulePageFlip();
+
+  // Callback for SchedulePageFlip(). This will signal when the page flip event
+  // has completed.
+  void OnPageFlip(gfx::SwapResult result);
+
+  DrmWindow* window_delegate_;
+
+  // The actual buffers used for painting.
+  scoped_refptr<DrmBuffer> front_buffer_;
+  scoped_refptr<DrmBuffer> back_buffer_;
+
+  skia::RefPtr<SkSurface> surface_;
+  gfx::Rect last_damage_;
+
+  // Keep track of the requested image and damage for the last presentation.
+  // This will be used to update the scanout buffers once the previous page flip
+  // events completes.
+  skia::RefPtr<SkImage> pending_image_;
+  gfx::Rect pending_image_damage_;
+  bool pending_pageflip_ = false;
+
+  base::WeakPtrFactory<DrmSurface> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(DrmSurface);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRM_GPU_DRM_SURFACE_H_