Profile OpenGL

opengl-profile.cpp

#include <chrono>
#include <iostream>
#ifdef __APPLE__
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <GLUT/glut.h>
#else
#ifdef _WIN32
  #include <windows.h>
#endif
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
#endif

void draw(){
    typedef std::chrono::high_resolution_clock Clock;
    using FpSeconds = std::chrono::duration<float, std::chrono::seconds::period>;
    glFinish(); // execute all previous GPU commands
    auto startTime = Clock::now();

    // open gl commands to be profiled

    glFinish(); // execute all GPU commands
    auto endTime = Clock::now();
    float deltaTime = std::chrono::duration_cast<FpSeconds>(endTime - startTime).count();
    std::cout << "Total time "<<deltaTime<<"s"<<std::endl;
}

int main(){
    // setup opengl context here
    draw();
    return 0;
}