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// Copyright 2015 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 CC_SURFACES_DISPLAY_SCHEDULER_H_
#define CC_SURFACES_DISPLAY_SCHEDULER_H_
#include "base/cancelable_callback.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/single_thread_task_runner.h"
#include "cc/scheduler/begin_frame_source.h"
#include "cc/surfaces/surface_id.h"
#include "cc/surfaces/surfaces_export.h"
namespace cc {
class OutputSurface;
class BeginFrameSource;
// TODO(brianderson): Reconcile with SurfacesScheduler crbug.com/476676
class CC_SURFACES_EXPORT DisplaySchedulerClient {
public:
virtual ~DisplaySchedulerClient() {}
virtual bool DrawAndSwap() = 0;
};
class CC_SURFACES_EXPORT DisplayScheduler : public BeginFrameObserverBase {
public:
DisplayScheduler(DisplaySchedulerClient* client,
BeginFrameSource* begin_frame_source,
base::SingleThreadTaskRunner* task_runner,
int max_pending_swaps);
~DisplayScheduler() override;
void SetRootSurfaceResourcesLocked(bool locked);
void ForceImmediateSwapIfPossible();
virtual void DisplayResized();
virtual void SetNewRootSurface(SurfaceId root_surface_id);
virtual void SurfaceDamaged(SurfaceId surface_id);
virtual void DidSwapBuffers();
void DidSwapBuffersComplete();
void OutputSurfaceLost();
// BeginFrameObserverBase implementation
bool OnBeginFrameDerivedImpl(const BeginFrameArgs& args) override;
protected:
base::TimeTicks DesiredBeginFrameDeadlineTime();
virtual void ScheduleBeginFrameDeadline();
void AttemptDrawAndSwap();
void OnBeginFrameDeadline();
void DrawAndSwap();
DisplaySchedulerClient* client_;
BeginFrameSource* begin_frame_source_;
base::SingleThreadTaskRunner* task_runner_;
BeginFrameArgs current_begin_frame_args_;
base::Closure begin_frame_deadline_closure_;
base::CancelableClosure begin_frame_deadline_task_;
base::TimeTicks begin_frame_deadline_task_time_;
bool output_surface_lost_;
bool root_surface_resources_locked_;
bool inside_begin_frame_deadline_interval_;
bool needs_draw_;
bool expecting_root_surface_damage_because_of_resize_;
bool all_active_child_surfaces_ready_to_draw_;
int pending_swaps_;
int max_pending_swaps_;
SurfaceId root_surface_id_;
bool root_surface_damaged_;
bool expect_damage_from_root_surface_;
std::set<SurfaceId> child_surface_ids_damaged_;
std::set<SurfaceId> child_surface_ids_damaged_prev_;
std::vector<SurfaceId> child_surface_ids_to_expect_damage_from_;
base::WeakPtrFactory<DisplayScheduler> weak_ptr_factory_;
private:
DISALLOW_COPY_AND_ASSIGN(DisplayScheduler);
};
} // namespace cc
#endif // CC_SURFACES_DISPLAY_SCHEDULER_H_