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// Copyright 2014 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.
#include "base/trace_event/trace_event.h"
#include "skia/ext/event_tracer_impl.h"
#include "third_party/skia/include/utils/SkEventTracer.h"
namespace skia {
class SkChromiumEventTracer: public SkEventTracer {
const uint8_t* getCategoryGroupEnabled(const char* name) override;
const char* getCategoryGroupName(const uint8_t* categoryEnabledFlag) override;
SkEventTracer::Handle addTraceEvent(char phase,
const uint8_t* categoryEnabledFlag,
const char* name,
uint64_t id,
int32_t numArgs,
const char** argNames,
const uint8_t* argTypes,
const uint64_t* argValues,
uint8_t flags) override;
void updateTraceEventDuration(const uint8_t* categoryEnabledFlag,
const char* name,
SkEventTracer::Handle handle) override;
};
const uint8_t*
SkChromiumEventTracer::getCategoryGroupEnabled(const char* name) {
return TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED(name);
}
const char* SkChromiumEventTracer::getCategoryGroupName(
const uint8_t* categoryEnabledFlag) {
return base::trace_event::TraceLog::GetCategoryGroupName(categoryEnabledFlag);
}
SkEventTracer::Handle
SkChromiumEventTracer::addTraceEvent(char phase,
const uint8_t* categoryEnabledFlag,
const char* name,
uint64_t id,
int32_t numArgs,
const char** argNames,
const uint8_t* argTypes,
const uint64_t* argValues,
uint8_t flags) {
base::trace_event::TraceEventHandle handle = TRACE_EVENT_API_ADD_TRACE_EVENT(
phase, categoryEnabledFlag, name, id, numArgs, argNames, argTypes,
(const long long unsigned int*)argValues, NULL, flags);
SkEventTracer::Handle result;
memcpy(&result, &handle, sizeof(result));
return result;
}
void
SkChromiumEventTracer::updateTraceEventDuration(
const uint8_t* categoryEnabledFlag,
const char *name,
SkEventTracer::Handle handle) {
base::trace_event::TraceEventHandle traceEventHandle;
memcpy(&traceEventHandle, &handle, sizeof(handle));
TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(
categoryEnabledFlag, name, traceEventHandle);
}
} // namespace skia
void InitSkiaEventTracer() {
// Initialize the binding to Skia's tracing events. Skia will
// take ownership of and clean up the memory allocated here.
if (!SkEventTracer::GetInstance())
SkEventTracer::SetInstance(new skia::SkChromiumEventTracer());
}
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