Ozone integration.

ui/ozone/platform/drm/gpu/drm_window.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_WINDOW_H_
+#define UI_OZONE_PLATFORM_DRM_GPU_DRM_WINDOW_H_
+
+#include <vector>
+
+#include "base/timer/timer.h"
+#include "ui/gfx/geometry/point.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/swap_result.h"
+#include "ui/ozone/ozone_export.h"
+#include "ui/ozone/platform/drm/gpu/overlay_plane.h"
+#include "ui/ozone/platform/drm/gpu/page_flip_request.h"
+#include "ui/ozone/public/surface_ozone_egl.h"
+
+class SkBitmap;
+
+namespace gfx {
+class Point;
+class Rect;
+}  // namespace gfx
+
+namespace ui {
+
+class DrmBuffer;
+class DrmDeviceManager;
+class HardwareDisplayController;
+struct OverlayCheck_Params;
+class ScanoutBufferGenerator;
+class ScreenManager;
+
+// A delegate of the platform window (DrmWindow) on the GPU process. This is
+// used to keep track of window state changes such that each platform window is
+// correctly associated with a display.
+// A window is associated with the display whose bounds contains the window
+// bounds. If there's no suitable display, the window is disconnected and its
+// contents will not be visible.
+class OZONE_EXPORT DrmWindow {
+ public:
+  DrmWindow(gfx::AcceleratedWidget widget,
+            DrmDeviceManager* device_manager,
+            ScreenManager* screen_manager);
+
+  ~DrmWindow();
+
+  gfx::Rect bounds() const { return bounds_; }
+
+  void Initialize();
+
+  void Shutdown();
+
+  // Returns the accelerated widget associated with the delegate.
+  gfx::AcceleratedWidget GetAcceleratedWidget();
+
+  // Returns the current controller the window is displaying on. Callers should
+  // not cache the result as the controller may change as the window is moved.
+  HardwareDisplayController* GetController();
+
+  void SetController(HardwareDisplayController* controller);
+
+  // Called when the window is resized/moved.
+  void OnBoundsChanged(const gfx::Rect& bounds);
+
+  // Update the HW cursor bitmap & move to specified location. If
+  // the bitmap is empty, the cursor is hidden.
+  void SetCursor(const std::vector<SkBitmap>& bitmaps,
+                 const gfx::Point& location,
+                 int frame_delay_ms);
+
+  // Update the HW cursor bitmap & move to specified location. If
+  // the bitmap is empty, the cursor is hidden.
+  void SetCursorWithoutAnimations(const std::vector<SkBitmap>& bitmaps,
+                                  const gfx::Point& location);
+
+  // Move the HW cursor to the specified location.
+  void MoveCursor(const gfx::Point& location);
+
+  // Queue overlay planes and page flips.
+  // If hardware display controller is available, forward the information
+  // immediately, otherwise queue up on the window and forward when the hardware
+  // is once again ready.
+  void QueueOverlayPlane(const OverlayPlane& plane);
+
+  bool SchedulePageFlip(bool is_sync, const SwapCompletionCallback& callback);
+  bool TestPageFlip(const std::vector<OverlayCheck_Params>& planes,
+                    ScanoutBufferGenerator* buffer_generator);
+
+  // Returns the last buffer associated with this window.
+  const OverlayPlane* GetLastModesetBuffer();
+
+ private:
+  // Draw the last set cursor & update the cursor plane.
+  void ResetCursor(bool bitmap_only);
+
+  // Draw next frame in an animated cursor.
+  void OnCursorAnimationTimeout();
+
+  // When |controller_| changes this is called to reallocate the cursor buffers
+  // since the allocation DRM device may have changed.
+  void UpdateCursorBuffers();
+
+  gfx::AcceleratedWidget widget_;
+
+  DrmDeviceManager* device_manager_;  // Not owned.
+  ScreenManager* screen_manager_;     // Not owned.
+
+  // The current bounds of the window.
+  gfx::Rect bounds_;
+
+  // The controller associated with the current window. This may be nullptr if
+  // the window isn't over an active display.
+  HardwareDisplayController* controller_ = nullptr;
+
+  base::RepeatingTimer<DrmWindow> cursor_timer_;
+
+  scoped_refptr<DrmBuffer> cursor_buffers_[2];
+  int cursor_frontbuffer_ = 0;
+
+  std::vector<SkBitmap> cursor_bitmaps_;
+  gfx::Point cursor_location_;
+  int cursor_frame_ = 0;
+  int cursor_frame_delay_ms_ = 0;
+
+  // Planes and flips currently being queued in the absence of hardware display
+  // controller.
+  OverlayPlaneList pending_planes_;
+  OverlayPlaneList last_submitted_planes_;
+  bool last_swap_sync_ = false;
+
+  DISALLOW_COPY_AND_ASSIGN(DrmWindow);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRM_GPU_DRM_WINDOW_H_