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#include <string>
#include <cstring>
#include <vector>
#include <set>
#include <iostream>
#include "retrace.hpp"
#include "metric_backend.hpp"
#include "metric_writer.hpp"
#include "metric_backend_amd_perfmon.hpp"
#include "metric_backend_intel_perfquery.hpp"
#include "metric_backend_opengl.hpp"
#include "mmap_allocator.hpp"
namespace glretrace {
bool metricBackendsSetup = false;
bool profilingContextAcquired = false;
bool profilingBoundaries[QUERY_BOUNDARY_LIST_END] = {false};
unsigned profilingBoundariesIndex[QUERY_BOUNDARY_LIST_END] = {0};
std::vector<MetricBackend*> metricBackends; // to be populated in initContext()
MetricBackend* curMetricBackend = nullptr; // backend active in the current pass
MetricWriter profiler(metricBackends, MmapAllocator<char>());
MetricBackend* getBackend(std::string backendName) {
// allocator for metric storage
MmapAllocator<char> alloc;
// to be populated with backends
Context *currentContext = getCurrentContext();
if (backendName == "GL_AMD_performance_monitor") return &MetricBackend_AMD_perfmon::getInstance(currentContext, alloc);
else if (backendName == "GL_INTEL_performance_query") return &MetricBackend_INTEL_perfquery::getInstance(currentContext, alloc);
else if (backendName == "opengl") return &MetricBackend_opengl::getInstance(currentContext, alloc);
else return nullptr;
}
bool
isLastPass() {
return ( retrace::curPass + 1 >= retrace::numPasses );
}
/* Callbacks for listing metrics with --list-metrics */
void listMetrics_metricCallback(Metric* c, int error, void* userData) {
static const std::string metricType[] = {"CNT_TYPE_GENERIC", "CNT_TYPE_NUM",
"CNT_TYPE_DURATION", "CNT_TYPE_PERCENT",
"CNT_TYPE_TIMESTAMP", "CNT_TYPE_OTHER"};
static const std::string metricNumType[] = {"CNT_NUM_UINT", "CNT_NUM_FLOAT",
"CNT_NUM_UINT64", "CNT_NUM_DOUBLE",
"CNT_NUM_BOOL", "CNT_NUM_INT64"};
std::cout << " Metric #" << c->id() << ": " << c->name()
<< " (type: " << metricType[c->type()] << ", num. type: "
<< metricNumType[c->numType()] << ").\n";
std::cout << " Description: " << c->description() << "\n";
}
void listMetrics_groupCallback(unsigned g, int error, void* userData) {
MetricBackend* b = reinterpret_cast<MetricBackend*>(userData);
std::cout << "\n Group #" << g << ": " << b->getGroupName(g) << ".\n";
b->enumMetrics(g, listMetrics_metricCallback, userData);
}
void listMetricsCLI() {
// backends is to be populated with backend names
std::string backends[] = {"GL_AMD_performance_monitor",
"GL_INTEL_performance_query",
"opengl"};
std::cout << "Available metrics: \n";
for (auto s : backends) {
auto b = getBackend(s);
if (!b->isSupported()) {
continue;
}
std::cout << "\nBackend " << s << ":\n";
b->enumGroups(listMetrics_groupCallback, b);
std::cout << std::endl;
}
}
void parseMetricsBlock(QueryBoundary pollingRule, const char* str,
std::size_t limit, MetricBackend* backend)
{
const char* end;
bool lastItem = false;
while (((end = reinterpret_cast<const char*>(std::memchr(str, ',', limit))) != nullptr)
|| !lastItem)
{
std::unique_ptr<Metric> p;
std::string metricName;
if (!end) {
lastItem = true;
end = str + limit;
}
std::size_t span = std::strspn(str, " ");
limit -= span;
str += span;
// parse [group, id]
if (*str == '[') {
std::string groupStr = std::string(str, 1, end-str-1);
limit -= end + 1 - str;
str = end + 1;
end = reinterpret_cast<const char*>(std::memchr(str, ']', limit));
std::string idStr = std::string(str, 0, end-str);
limit -= end + 1 - str;
str = end + 1;
const char* next = reinterpret_cast<const char*>(std::memchr(str, ',', limit));
if (next) {
end = next;
limit -= end + 1 - str;
str = end + 1;
}
#if defined(ANDROID)
// http://stackoverflow.com/questions/17950814/how-to-use-stdstoul-and-stdstoull-in-android
unsigned groupId = strtoul(groupStr.c_str(), nullptr, 10);
unsigned metricId = strtoul(idStr.c_str(), nullptr, 10);
#else
unsigned groupId = std::stoul(groupStr);
unsigned metricId = std::stoul(idStr);
#endif
p = backend->getMetricById(groupId, metricId);
metricName = "[" + groupStr + ", " + idStr + "]";
// parse metricName
} else {
if (end - str) {
metricName = std::string(str, 0, end-str);
p = backend->getMetricByName(metricName);
}
limit -= end + (lastItem ? 0 : 1) - str;
str = end + (lastItem ? 0 : 1);
if (metricName.empty()) continue;
}
if (!p) {
std::cerr << "Warning: No metric \"" << metricName
<< "\"." << std::endl;
continue;
}
int error = backend->enableMetric(p.get(), pollingRule);
if (error) {
std::cerr << "Warning: Metric " << metricName << " not enabled"
" (error " << error << ")." << std::endl;
} else {
profilingBoundaries[pollingRule] = true;
}
}
}
void parseBackendBlock(QueryBoundary pollingRule, const char* str,
std::size_t limit, std::set<MetricBackend*> &backendsHash)
{
const char* delim = reinterpret_cast<const char*>(std::memchr(str, ':', limit));
if (delim) {
std::size_t span = std::strspn(str, " ");
std::string backendName = std::string(str, span, delim-str-span);
MetricBackend* backend = getBackend(backendName);
if (!backend) {
std::cerr << "Warning: No backend \"" << backendName << "\"."
<< std::endl;
return;
}
if (!backend->isSupported()) {
std::cerr << "Warning: Backend \"" << backendName
<< "\" is not supported." << std::endl;
return;
}
/**
* order in metricBackends is important for output
* also there should be no duplicates
*/
if (backendsHash.find(backend) == backendsHash.end()) {
metricBackends.push_back(backend);
backendsHash.insert(backend);
}
limit -= (delim-str) + 1;
parseMetricsBlock(pollingRule, delim + 1, limit, backend);
}
}
void enableMetricsFromCLI(const char* metrics, QueryBoundary pollingRule) {
static std::set<MetricBackend*> backendsHash; // for not allowing duplicates
const char* end;
while ((end = std::strchr(metrics, ';')) != nullptr) {
parseBackendBlock(pollingRule, metrics, end-metrics, backendsHash);
metrics = end + 1;
}
parseBackendBlock(pollingRule, metrics, std::strlen(metrics), backendsHash);
}
} /* namespace glretrace */
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