Split //ui/display and create //ui/display/manager.

ui/display/chromeos/x11/native_display_delegate_x11.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_DISPLAY_CHROMEOS_X11_NATIVE_DISPLAY_DELEGATE_X11_H_
-#define UI_DISPLAY_CHROMEOS_X11_NATIVE_DISPLAY_DELEGATE_X11_H_
-
-#include <stdint.h>
-
-#include <map>
-#include <memory>
-#include <set>
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/event_types.h"
-#include "base/macros.h"
-#include "base/memory/scoped_vector.h"
-#include "base/observer_list.h"
-#include "ui/display/display_export.h"
-#include "ui/display/types/native_display_delegate.h"
-#include "ui/gfx/geometry/point.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gfx/x/x11_types.h"
-
-// Forward declarations for Xlib and Xrandr.
-// This is so unused X definitions don't pollute the namespace.
-typedef XID RROutput;
-typedef XID RRCrtc;
-typedef XID RRMode;
-typedef XID _Window;
-
-struct _XRROutputInfo;
-typedef _XRROutputInfo XRROutputInfo;
-struct _XRRScreenResources;
-typedef _XRRScreenResources XRRScreenResources;
-struct _XRRCrtcGamma;
-typedef _XRRCrtcGamma XRRCrtcGamma;
-
-extern "C" {
-void XRRFreeScreenResources(XRRScreenResources* resources);
-}
-
-namespace ui {
-
-class DisplayModeX11;
-class DisplaySnapshotX11;
-class NativeDisplayEventDispatcherX11;
-
-class DISPLAY_EXPORT NativeDisplayDelegateX11 : public NativeDisplayDelegate {
- public:
-  // Helper class that allows NativeDisplayEventDispatcherX11 and
-  // NativeDisplayDelegateX11::PlatformEventObserverX11 to interact with this
-  // class or with mocks in tests.
-  class HelperDelegate {
-   public:
-    virtual ~HelperDelegate() {}
-
-    // Tells XRandR to update its configuration in response to |event|, an
-    // RRScreenChangeNotify event.
-    virtual void UpdateXRandRConfiguration(const base::NativeEvent& event) = 0;
-
-    // Returns the list of current outputs. This is used to discard duplicate
-    // events.
-    virtual const std::vector<DisplaySnapshot*>& GetCachedDisplays() const = 0;
-
-    // Notify |observers_| that a change in configuration has occurred.
-    virtual void NotifyDisplayObservers() = 0;
-  };
-
-  NativeDisplayDelegateX11();
-  ~NativeDisplayDelegateX11() override;
-
-  // NativeDisplayDelegate overrides:
-  void Initialize() override;
-  void GrabServer() override;
-  void UngrabServer() override;
-  void TakeDisplayControl(const DisplayControlCallback& callback) override;
-  void RelinquishDisplayControl(
-      const DisplayControlCallback& callback) override;
-  void SyncWithServer() override;
-  void SetBackgroundColor(uint32_t color_argb) override;
-  void ForceDPMSOn() override;
-  void GetDisplays(const GetDisplaysCallback& callback) override;
-  void AddMode(const DisplaySnapshot& output, const DisplayMode* mode) override;
-  void Configure(const DisplaySnapshot& output,
-                 const DisplayMode* mode,
-                 const gfx::Point& origin,
-                 const ConfigureCallback& callback) override;
-  void CreateFrameBuffer(const gfx::Size& size) override;
-  void GetHDCPState(const DisplaySnapshot& output,
-                    const GetHDCPStateCallback& callback) override;
-  void SetHDCPState(const DisplaySnapshot& output,
-                    HDCPState state,
-                    const SetHDCPStateCallback& callback) override;
-  std::vector<ColorCalibrationProfile> GetAvailableColorCalibrationProfiles(
-      const DisplaySnapshot& output) override;
-  bool SetColorCalibrationProfile(const DisplaySnapshot& output,
-                                  ColorCalibrationProfile new_profile) override;
-  bool SetColorCorrection(const ui::DisplaySnapshot& output,
-                          const std::vector<GammaRampRGBEntry>& degamma_lut,
-                          const std::vector<GammaRampRGBEntry>& gamma_lut,
-                          const std::vector<float>& correction_matrix) override;
-  void AddObserver(NativeDisplayObserver* observer) override;
-  void RemoveObserver(NativeDisplayObserver* observer) override;
-  display::FakeDisplayController* GetFakeDisplayController() override;
-
- private:
-  class HelperDelegateX11;
-
-  // Parses all the modes made available by |screen_|.
-  void InitModes();
-
-  // Helper method for GetOutputs() that returns an OutputSnapshot struct based
-  // on the passed-in information.
-  DisplaySnapshotX11* InitDisplaySnapshot(RROutput id,
-                                          XRROutputInfo* info,
-                                          std::set<RRCrtc>* last_used_crtcs,
-                                          int index);
-
-  // Destroys unused CRTCs.
-  void DestroyUnusedCrtcs();
-
-  // Parks used CRTCs in a way which allows a framebuffer resize. This is faster
-  // than turning them off, resizing, then turning them back on.
-  // |min_screen_size| represent the smallest size between the current
-  // framebuffer size and the requested framebuffer size.
-  void UpdateCrtcsForNewFramebuffer(const gfx::Size& min_screen_size);
-
-  bool ConfigureCrtc(RRCrtc crtc, RRMode mode, RROutput output, int x, int y);
-
-  // Helper functions that perform the actual HDCP requests.
-  bool GetHDCPState(const DisplaySnapshot& output, HDCPState* state);
-  bool SetHDCPState(const DisplaySnapshot& output, HDCPState state);
-
-  // Returns whether |id| is configured to preserve aspect when scaling.
-  bool IsOutputAspectPreservingScaling(RROutput id);
-
-  // Creates the gamma ramp for |new_profile|, or NULL if it doesn't exist.
-  // The caller should take the ownership.
-  XRRCrtcGamma* CreateGammaRampForProfile(
-      const DisplaySnapshotX11& x11_output,
-      ColorCalibrationProfile new_profile);
-
-  void DrawBackground();
-
-  XDisplay* display_;
-  _Window window_;
-
-  // Initialized when the server is grabbed and freed when it's ungrabbed.
-  gfx::XScopedPtr<
-      XRRScreenResources,
-      gfx::XObjectDeleter<XRRScreenResources, void, XRRFreeScreenResources>>
-      screen_;
-
-  std::map<RRMode, std::unique_ptr<DisplayModeX11>> modes_;
-
-  // Every time GetOutputs() is called we cache the updated list of outputs in
-  // |cached_outputs_| so that we can check for duplicate events rather than
-  // propagate them.
-  ScopedVector<DisplaySnapshot> cached_outputs_;
-
-  std::unique_ptr<HelperDelegate> helper_delegate_;
-
-  // Processes X11 display events associated with the root window and notifies
-  // |observers_| when a display change has occurred.
-  std::unique_ptr<NativeDisplayEventDispatcherX11> platform_event_dispatcher_;
-
-  // List of observers waiting for display configuration change events.
-  base::ObserverList<NativeDisplayObserver> observers_;
-
-  // A background color used during boot time + multi displays.
-  uint32_t background_color_argb_;
-
-  DISALLOW_COPY_AND_ASSIGN(NativeDisplayDelegateX11);
-};
-
-}  // namespace ui
-
-#endif  // UI_DISPLAY_CHROMEOS_X11_NATIVE_DISPLAY_DELEGATE_X11_H_