ui/ozone/platform/drm/gpu/drm_gpu_display_manager.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_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_
   6 #define UI_OZONE_PLATFORM_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_
   7
   8 #include "base/memory/scoped_vector.h"
   9 #include "ui/ozone/common/gpu/ozone_gpu_message_params.h"
  10
  11 namespace ui {
  12
  13 class DrmDeviceManager;
  14 class DrmDisplay;
  15 class ScreenManager;
  16
  17 struct GammaRampRGBEntry;
  18
  19 class DrmGpuDisplayManager {
  20  public:
  21   DrmGpuDisplayManager(ScreenManager* screen_manager,
  22                        DrmDeviceManager* drm_device_manager);
  23   ~DrmGpuDisplayManager();
  24
  25   // Returns a list of the connected displays. When this is called the list of
  26   // displays is refreshed.
  27   std::vector<DisplaySnapshot_Params> GetDisplays();
  28
  29   // Takes/releases the control of the DRM devices.
  30   bool TakeDisplayControl();
  31   void RelinquishDisplayControl();
  32
  33   bool ConfigureDisplay(int64_t id,
  34                         const DisplayMode_Params& mode,
  35                         const gfx::Point& origin);
  36   bool DisableDisplay(int64_t id);
  37   bool GetHDCPState(int64_t display_id, HDCPState* state);
  38   bool SetHDCPState(int64_t display_id, HDCPState state);
  39   void SetGammaRamp(int64_t id, const std::vector<GammaRampRGBEntry>& lut);
  40
  41  private:
  42   DrmDisplay* FindDisplay(int64_t display_id);
  43
  44   // Notify ScreenManager of all the displays that were present before the
  45   // update but are gone after the update.
  46   void NotifyScreenManager(const std::vector<DrmDisplay*>& new_displays,
  47                            const std::vector<DrmDisplay*>& old_displays) const;
  48
  49   ScreenManager* screen_manager_;  // Not owned.
  50   DrmDeviceManager* drm_device_manager_;  // Not owned.
  51
  52   ScopedVector<DrmDisplay> displays_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(DrmGpuDisplayManager);
  55 };
  56
  57 }  // namespace ui
  58
  59 #endif  // UI_OZONE_PLATFORM_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_