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// 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/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/scoped_vector.h"
#include "ui/ozone/common/gpu/ozone_gpu_message_params.h"
namespace base {
class FilePath;
class SingleThreadTaskRunner;
struct FileDescriptor;
}
namespace ui {
class DeviceManager;
class DisplayMode;
class DrmDevice;
class DrmDeviceGenerator;
class DrmDisplaySnapshot;
class DrmDisplayMode;
class ScreenManager;
class DrmGpuDisplayManager {
public:
DrmGpuDisplayManager(ScreenManager* screen_manager,
const scoped_refptr<DrmDevice>& primary_device,
scoped_ptr<DrmDeviceGenerator> device_generator);
~DrmGpuDisplayManager();
void InitializeIOTaskRunner(
const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
// Returns a list of the connected displays. When this is called the list of
// displays is refreshed.
std::vector<DisplaySnapshot_Params> GetDisplays();
bool ConfigureDisplay(int64_t id,
const DisplayMode_Params& mode,
const gfx::Point& origin);
bool DisableDisplay(int64_t id);
// Takes/releases the control of the DRM devices.
bool TakeDisplayControl();
bool RelinquishDisplayControl();
// Called on DRM hotplug events to add/remove a DRM device.
void AddGraphicsDevice(const base::FilePath& path,
const base::FileDescriptor& fd);
void RemoveGraphicsDevice(const base::FilePath& path);
private:
DrmDisplaySnapshot* FindDisplaySnapshot(int64_t id);
const DrmDisplayMode* FindDisplayMode(const gfx::Size& size,
bool is_interlaced,
float refresh_rate);
void RefreshDisplayList();
bool Configure(const DrmDisplaySnapshot& output,
const DrmDisplayMode* mode,
const gfx::Point& origin);
bool GetHDCPState(const DrmDisplaySnapshot& output, HDCPState* state);
bool SetHDCPState(const DrmDisplaySnapshot& output, HDCPState state);
// Notify ScreenManager of all the displays that were present before the
// update but are gone after the update.
void NotifyScreenManager(
const std::vector<DrmDisplaySnapshot*>& new_displays,
const std::vector<DrmDisplaySnapshot*>& old_displays) const;
ScreenManager* screen_manager_; // Not owned.
scoped_ptr<DrmDeviceGenerator> drm_device_generator_;
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
std::vector<scoped_refptr<DrmDevice>> devices_;
// Modes can be shared between different displays, so we need to keep track
// of them independently for cleanup.
ScopedVector<const DisplayMode> cached_modes_;
ScopedVector<DrmDisplaySnapshot> cached_displays_;
DISALLOW_COPY_AND_ASSIGN(DrmGpuDisplayManager);
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_DRM_GPU_DRM_GPU_DISPLAY_MANAGER_H_
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