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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_WINDOW_H_
#define UI_OZONE_PLATFORM_DRM_GPU_DRM_WINDOW_H_
#include <vector>
#include "base/macros.h"
#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/gfx/vsync_provider.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 DrmDevice;
class DrmDeviceManager;
class DrmOverlayValidator;
class HardwareDisplayController;
struct OverlayCheck_Params;
class ScanoutBufferGenerator;
class ScreenManager;
// The GPU object representing a window.
//
// The main purpose of this object is to associate drawing surfaces with
// displays. A surface created with the same id as the window (from
// GetAcceleratedWidget()) will paint onto that window. A window with
// the same bounds as a display will paint onto that display.
//
// If there's no display whose bounds match the window's, the window is
// disconnected and its contents will not be visible to the user.
class DrmWindow {
public:
DrmWindow(gfx::AcceleratedWidget widget,
DrmDeviceManager* device_manager,
ScreenManager* screen_manager);
~DrmWindow();
gfx::Rect bounds() const { return bounds_; }
void Initialize(ScanoutBufferGenerator* buffer_generator);
void Shutdown();
// Returns the accelerated widget associated with the window.
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 SetBounds(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);
void SchedulePageFlip(const std::vector<OverlayPlane>& planes,
const SwapCompletionCallback& callback);
std::vector<OverlayCheck_Params> TestPageFlip(
const std::vector<OverlayCheck_Params>& overlay_params);
// Returns the last buffer associated with this window.
const OverlayPlane* GetLastModesetBuffer();
void GetVSyncParameters(
const gfx::VSyncProvider::UpdateVSyncCallback& callback) const;
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;
std::unique_ptr<DrmOverlayValidator> overlay_validator_;
base::RepeatingTimer 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;
OverlayPlaneList last_submitted_planes_;
bool force_buffer_reallocation_ = false;
DISALLOW_COPY_AND_ASSIGN(DrmWindow);
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_DRM_GPU_DRM_WINDOW_H_