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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_VIZ_TEST_FAKE_EXTERNAL_BEGIN_FRAME_SOURCE_H_
#define COMPONENTS_VIZ_TEST_FAKE_EXTERNAL_BEGIN_FRAME_SOURCE_H_
#include <set>
#include "base/cancelable_callback.h"
#include "base/containers/flat_map.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "components/viz/common/frame_sinks/begin_frame_args.h"
#include "components/viz/common/frame_sinks/begin_frame_source.h"
namespace base {
class TickClock;
} // namespace base
namespace viz {
class FakeExternalBeginFrameSource : public BeginFrameSource {
public:
class Client {
public:
virtual void OnAddObserver(BeginFrameObserver* obs) = 0;
virtual void OnRemoveObserver(BeginFrameObserver* obs) = 0;
};
explicit FakeExternalBeginFrameSource(double refresh_rate,
bool tick_automatically);
~FakeExternalBeginFrameSource() override;
void SetClient(Client* client) { client_ = client; }
void SetPaused(bool paused);
// BeginFrameSource implementation.
void AddObserver(BeginFrameObserver* obs) override;
void RemoveObserver(BeginFrameObserver* obs) override;
void DidFinishFrame(BeginFrameObserver* obs) override;
void OnGpuNoLongerBusy() override {}
BeginFrameArgs CreateBeginFrameArgs(
BeginFrameArgs::CreationLocation location);
BeginFrameArgs CreateBeginFrameArgs(BeginFrameArgs::CreationLocation location,
const base::TickClock* now_src);
BeginFrameArgs CreateBeginFrameArgsWithGenerator(
base::TimeTicks frame_time,
base::TimeTicks next_frame_time,
base::TimeDelta vsync_interval);
uint64_t next_begin_frame_number() const { return next_begin_frame_number_; }
void TestOnBeginFrame(const BeginFrameArgs& args);
size_t num_observers() const { return observers_.size(); }
bool AllFramesDidFinish();
using BeginFrameSource::RequestCallbackOnGpuAvailable;
private:
void PostTestOnBeginFrame();
const bool tick_automatically_;
const double milliseconds_per_frame_;
raw_ptr<Client, DanglingUntriaged> client_ = nullptr;
bool paused_ = false;
BeginFrameArgs current_args_;
uint64_t next_begin_frame_number_ = BeginFrameArgs::kStartingFrameNumber;
std::set<raw_ptr<BeginFrameObserver, SetExperimental>> observers_;
base::flat_map<BeginFrameObserver*, int64_t> pending_frames_;
base::CancelableOnceClosure begin_frame_task_;
BeginFrameSource::BeginFrameArgsGenerator begin_frame_args_generator_;
SEQUENCE_CHECKER(sequence_checker_);
base::WeakPtrFactory<FakeExternalBeginFrameSource> weak_ptr_factory_{this};
};
} // namespace viz
#endif // COMPONENTS_VIZ_TEST_FAKE_EXTERNAL_BEGIN_FRAME_SOURCE_H_
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