Ozone integration.

ui/ozone/platform/drm/gpu/drm_gpu_display_manager.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_GPU_DISPLAY_MANAGER_H_
+#define UI_OZONE_PLATFORM_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_
+
+#include "base/memory/scoped_vector.h"
+#include "ui/display/types/display_constants.h"
+#include "ui/ozone/common/gpu/ozone_gpu_message_params.h"
+
+namespace ui {
+
+class DrmDeviceManager;
+class DrmDisplay;
+class ScreenManager;
+
+struct GammaRampRGBEntry;
+
+class DrmGpuDisplayManager {
+ public:
+  DrmGpuDisplayManager(ScreenManager* screen_manager,
+                       DrmDeviceManager* drm_device_manager);
+  ~DrmGpuDisplayManager();
+
+  // Returns a list of the connected displays. When this is called the list of
+  // displays is refreshed.
+  std::vector<DisplaySnapshot_Params> GetDisplays();
+
+  // Takes/releases the control of the DRM devices.
+  bool TakeDisplayControl();
+  void RelinquishDisplayControl();
+
+  bool ConfigureDisplay(int64_t id,
+                        const DisplayMode_Params& mode,
+                        const gfx::Point& origin);
+  bool DisableDisplay(int64_t id);
+  bool GetHDCPState(int64_t display_id, HDCPState* state);
+  bool SetHDCPState(int64_t display_id, HDCPState state);
+  void SetGammaRamp(int64_t id, const std::vector<GammaRampRGBEntry>& lut);
+
+ private:
+  DrmDisplay* FindDisplay(int64_t display_id);
+
+  // Notify ScreenManager of all the displays that were present before the
+  // update but are gone after the update.
+  void NotifyScreenManager(const std::vector<DrmDisplay*>& new_displays,
+                           const std::vector<DrmDisplay*>& old_displays) const;
+
+  ScreenManager* screen_manager_;  // Not owned.
+  DrmDeviceManager* drm_device_manager_;  // Not owned.
+
+  ScopedVector<DrmDisplay> displays_;
+
+  DISALLOW_COPY_AND_ASSIGN(DrmGpuDisplayManager);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_