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// Copyright (c) 2012 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.
// This file contains the GPUTrace class.
#ifndef GPU_COMMAND_BUFFER_SERVICE_GPU_TRACER_H_
#define GPU_COMMAND_BUFFER_SERVICE_GPU_TRACER_H_
#include <deque>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread.h"
#include "gpu/command_buffer/service/gles2_cmd_decoder.h"
#include "gpu/command_buffer/service/gpu_timing.h"
#include "gpu/gpu_export.h"
namespace gpu {
namespace gles2 {
class Outputter;
class GPUTrace;
// Id used to keep trace namespaces separate
enum GpuTracerSource {
kTraceGroupInvalid = -1,
kTraceGroupMarker = 0,
kTraceCHROMIUM = 1,
kTraceDecoder = 2,
NUM_TRACER_SOURCES
};
// Marker structure for a Trace.
struct TraceMarker {
TraceMarker(const std::string& category, const std::string& name);
~TraceMarker();
std::string category_;
std::string name_;
scoped_refptr<GPUTrace> trace_;
};
// Traces GPU Commands.
class GPU_EXPORT GPUTracer
: public base::SupportsWeakPtr<GPUTracer> {
public:
explicit GPUTracer(gles2::GLES2Decoder* decoder);
virtual ~GPUTracer();
// Scheduled processing in decoder begins.
bool BeginDecoding();
// Scheduled processing in decoder ends.
bool EndDecoding();
// Begin a trace marker.
bool Begin(const std::string& category, const std::string& name,
GpuTracerSource source);
// End the last started trace marker.
bool End(GpuTracerSource source);
virtual bool IsTracing();
// Retrieve the name of the current open trace.
// Returns empty string if no current open trace.
const std::string& CurrentCategory(GpuTracerSource source) const;
const std::string& CurrentName(GpuTracerSource source) const;
protected:
// Trace Processing.
virtual scoped_refptr<Outputter> CreateOutputter(const std::string& name);
virtual void PostTask();
void Process();
void ProcessTraces();
void IssueProcessTask();
scoped_refptr<Outputter> outputter_;
std::vector<TraceMarker> markers_[NUM_TRACER_SOURCES];
std::deque<scoped_refptr<GPUTrace> > traces_;
const unsigned char* gpu_trace_srv_category;
const unsigned char* gpu_trace_dev_category;
gles2::GLES2Decoder* decoder_;
gpu::GPUTiming gpu_timing_;
bool gpu_executing_;
bool process_posted_;
private:
DISALLOW_COPY_AND_ASSIGN(GPUTracer);
};
class Outputter : public base::RefCounted<Outputter> {
public:
virtual void TraceDevice(const std::string& category,
const std::string& name,
int64 start_time,
int64 end_time) = 0;
virtual void TraceServiceBegin(const std::string& category,
const std::string& name) = 0;
virtual void TraceServiceEnd(const std::string& category,
const std::string& name) = 0;
protected:
virtual ~Outputter() {}
friend class base::RefCounted<Outputter>;
};
class TraceOutputter : public Outputter {
public:
static scoped_refptr<TraceOutputter> Create(const std::string& name);
void TraceDevice(const std::string& category,
const std::string& name,
int64 start_time,
int64 end_time) override;
void TraceServiceBegin(const std::string& category,
const std::string& name) override;
void TraceServiceEnd(const std::string& category,
const std::string& name) override;
protected:
friend class base::RefCounted<Outputter>;
explicit TraceOutputter(const std::string& name);
~TraceOutputter() override;
base::Thread named_thread_;
uint64 local_trace_id_;
private:
DISALLOW_COPY_AND_ASSIGN(TraceOutputter);
};
class GPU_EXPORT GPUTrace
: public base::RefCounted<GPUTrace> {
public:
GPUTrace(scoped_refptr<Outputter> outputter,
gpu::GPUTiming* gpu_timing,
const std::string& category,
const std::string& name,
const bool enabled);
void Start(bool trace_service);
void End(bool tracing_service);
bool IsAvailable();
bool IsEnabled() { return enabled_; }
void Process();
private:
~GPUTrace();
void Output();
friend class base::RefCounted<GPUTrace>;
std::string category_;
std::string name_;
scoped_refptr<Outputter> outputter_;
scoped_ptr<gpu::GPUTimer> gpu_timer_;
const bool enabled_ = false;
DISALLOW_COPY_AND_ASSIGN(GPUTrace);
};
class ScopedGPUTrace {
public:
ScopedGPUTrace(GPUTracer* gpu_tracer,
GpuTracerSource source,
const std::string& category,
const std::string& name)
: gpu_tracer_(gpu_tracer), source_(source) {
gpu_tracer_->Begin(category, name, source_);
}
~ScopedGPUTrace() { gpu_tracer_->End(source_); }
private:
GPUTracer* gpu_tracer_;
GpuTracerSource source_;
};
} // namespace gles2
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_GPU_TRACER_H_
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