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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_SERVICE_DAWN_PLATFORM_H_
#define GPU_COMMAND_BUFFER_SERVICE_DAWN_PLATFORM_H_
#include <dawn/platform/DawnPlatform.h>
#include <memory>
#include "base/containers/flat_map.h"
#include "base/synchronization/lock.h"
#include "base/time/time.h"
#include "gpu/command_buffer/service/dawn_caching_interface.h"
namespace gpu::webgpu {
class DawnPlatform : public dawn::platform::Platform {
public:
explicit DawnPlatform(
std::unique_ptr<DawnCachingInterface> dawn_caching_interface,
const char* uma_prefix,
bool record_cache_count_uma);
~DawnPlatform() override;
const unsigned char* GetTraceCategoryEnabledFlag(
dawn::platform::TraceCategory category) override;
double MonotonicallyIncreasingTime() override;
uint64_t AddTraceEvent(char phase,
const unsigned char* category_group_enabled,
const char* name,
uint64_t id,
double timestamp,
int num_args,
const char** arg_names,
const unsigned char* arg_types,
const uint64_t* arg_values,
unsigned char flags) override;
void HistogramCustomCounts(const char* name,
int sample,
int min,
int max,
int bucketCount) override;
void HistogramCustomCountsHPC(const char* name,
int sample,
int min,
int max,
int bucketCount) override;
void HistogramEnumeration(const char* name,
int sample,
int boundaryValue) override;
void HistogramSparse(const char* name, int sample) override;
void HistogramBoolean(const char* name, bool sample) override;
dawn::platform::CachingInterface* GetCachingInterface() override;
std::unique_ptr<dawn::platform::WorkerTaskPool> CreateWorkerTaskPool()
override;
bool IsFeatureEnabled(dawn::platform::Features feature) override;
struct CacheCountsMap : public base::RefCountedThreadSafe<CacheCountsMap> {
struct CacheCounts {
CacheCounts() = default;
~CacheCounts() = default;
uint32_t cache_miss_count = 0;
uint32_t cache_hit_count = 0;
};
CacheCountsMap();
base::Lock lock;
base::flat_map<std::string, CacheCounts> counts GUARDED_BY(lock);
private:
friend class base::RefCountedThreadSafe<CacheCountsMap>;
~CacheCountsMap();
};
private:
void HistogramCacheCountHelper(std::string name,
int sample,
int min,
int max,
int bucketCount);
std::unique_ptr<DawnCachingInterface> dawn_caching_interface_ = nullptr;
std::string uma_prefix_;
scoped_refptr<CacheCountsMap> cache_map_;
base::TimeTicks startup_time_;
};
} // namespace gpu::webgpu
#endif // GPU_COMMAND_BUFFER_SERVICE_DAWN_PLATFORM_H_
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