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// Copyright 2024 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_SERVICE_INPUT_PEAK_GPU_MEMORY_TRACKER_IMPL_H_
#define COMPONENTS_VIZ_SERVICE_INPUT_PEAK_GPU_MEMORY_TRACKER_IMPL_H_
#include "base/functional/callback_forward.h"
#include "base/functional/callback_helpers.h"
#include "base/task/single_thread_task_runner.h"
#include "components/viz/common/resources/peak_gpu_memory_tracker.h"
#include "components/viz/service/viz_service_export.h"
namespace viz {
class GpuServiceImpl;
// Tracks the peak memory of the GPU service for its lifetime. Upon its
// destruction a report will be requested from the GPU service. The peak will be
// reported to UMA Histograms.
//
// If the GPU is lost during this objects lifetime, upon destruction there will
// be no report to UMA Histograms. Emitting UMA Histograms is done by running
// PeakGpuMemoryCallback on GpuMain thread.
class VIZ_SERVICE_EXPORT PeakGpuMemoryTrackerImpl
: public PeakGpuMemoryTracker {
public:
// Requests the GPU service to begin peak memory tracking.
PeakGpuMemoryTrackerImpl(PeakGpuMemoryTracker::Usage usage,
GpuServiceImpl* gpu_service);
// Requests the GPU service provides the peak memory, the result is presented
// to UMA Histograms.
~PeakGpuMemoryTrackerImpl() override;
PeakGpuMemoryTrackerImpl(const PeakGpuMemoryTrackerImpl*) = delete;
PeakGpuMemoryTrackerImpl& operator=(const PeakGpuMemoryTrackerImpl&) = delete;
void Cancel() override;
private:
bool canceled_ = false;
PeakGpuMemoryTracker::Usage usage_;
raw_ptr<GpuServiceImpl> gpu_service_;
uint32_t sequence_num_;
};
} // namespace viz
#endif // COMPONENTS_VIZ_SERVICE_INPUT_PEAK_GPU_MEMORY_TRACKER_IMPL_H_
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