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#include "trace_loader.hpp"
using namespace Trace;
Loader::Loader()
: m_frameMarker(FrameMarker_SwapBuffers)
{
}
Loader::~Loader()
{
close();
}
Loader::FrameMarker Loader::frameMarker() const
{
return m_frameMarker;
}
void Loader::setFrameMarker(Loader::FrameMarker marker)
{
m_frameMarker = marker;
}
unsigned Loader::numberOfFrames() const
{
return m_frameBookmarks.size();
}
unsigned Loader::numberOfCallsInFrame(unsigned frameIdx) const
{
if (frameIdx > m_frameBookmarks.size()) {
return 0;
}
FrameBookmarks::const_iterator itr =
m_frameBookmarks.find(frameIdx);
return itr->second.numberOfCalls;
}
bool Loader::open(const char *filename)
{
if (!m_parser.open(filename)) {
std::cerr << "error: failed to open " << filename << "\n";
return false;
}
if (!m_parser.supportsOffsets()) {
std::cerr << "error: " <<filename<< " doesn't support seeking "
<< "\n";
return false;
}
Trace::Call *call;
ParseBookmark startBookmark;
unsigned numOfFrames = 0;
unsigned numOfCalls = 0;
int lastPercentReport = 0;
m_parser.getBookmark(startBookmark);
while ((call = m_parser.scan_call())) {
++numOfCalls;
if (isCallAFrameMarker(call)) {
FrameBookmark frameBookmark(startBookmark);
frameBookmark.numberOfCalls = numOfCalls;
m_frameBookmarks[numOfFrames] = frameBookmark;
++numOfFrames;
if (m_parser.percentRead() - lastPercentReport >= 5) {
std::cerr << "\tPercent scanned = "
<< m_parser.percentRead()
<< "..."<<std::endl;
lastPercentReport = m_parser.percentRead();
}
m_parser.getBookmark(startBookmark);
numOfCalls = 0;
}
//call->dump(std::cout, color);
delete call;
}
return true;
}
void Loader::close()
{
m_parser.close();
}
bool Loader::isCallAFrameMarker(const Trace::Call *call) const
{
std::string name = call->name();
switch (m_frameMarker) {
case FrameMarker_SwapBuffers:
return name.find("SwapBuffers") != std::string::npos ||
name == "CGLFlushDrawable" ||
name == "glFrameTerminatorGREMEDY";
break;
case FrameMarker_Flush:
return name == "glFlush";
break;
case FrameMarker_Finish:
return name == "glFinish";
break;
case FrameMarker_Clear:
return name == "glClear";
break;
}
return false;
}
std::vector<Trace::Call *> Loader::frame(unsigned idx)
{
unsigned numOfCalls = numberOfCallsInFrame(idx);
if (numOfCalls) {
const FrameBookmark &frameBookmark = m_frameBookmarks[idx];
std::vector<Trace::Call*> calls(numOfCalls);
m_parser.setBookmark(frameBookmark.start);
Trace::Call *call;
unsigned parsedCalls = 0;
while ((call = m_parser.parse_call())) {
calls[parsedCalls] = call;
++parsedCalls;
if (isCallAFrameMarker(call)) {
break;
}
}
assert(parsedCalls == numOfCalls);
return calls;
}
return std::vector<Trace::Call*>();
}
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