standalone/001_ati_meminfo.cpp

Shows simple usage of the ATI_meminfo extensionCopyright 2008-2014 Matus Chochlik. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#include <cassert>
#include <iostream>

#include <GL/glew.h>
#include <GL/glut.h>

#include <oglplus/all.hpp>
#include <oglplus/ext/ATI_meminfo.hpp>

int main(int argc, char* argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
    glutInitWindowSize(800, 600);
    glutInitWindowPosition(100,100);
    glutCreateWindow("OGLplus+GLUT+GLEW");

    if(glewInit() == GLEW_OK) try
    {
        glGetError();
        oglplus::ATI_meminfo ami;

        oglplus::ATI_meminfo::AvailableMemory mem_info[3] = {
            ami.VBOFreeMemory(),
            ami.TextureFreeMemory(),
            ami.RenderbufferFreeMemory()
        };

        const char* name[3] = {
            "VBO",
            "Texture",
            "Renderbuffer"
        };

        for(int i=0; i!=3; ++i)
        {
            std::cout << name[i] << " Free Memory:" <<
                std::endl;
            std::cout << "  Total: " <<
                mem_info[i].TotalFree() <<
                std::endl;
            std::cout << "  Largest block: " <<
                mem_info[i].LargestFreeBlock() <<
                std::endl;
            std::cout << "  Total aux: " <<
                mem_info[i].TotalAuxFree() <<
                std::endl;
            std::cout << "  Largest aux block: " <<
                mem_info[i].LargestAuxFreeBlock() <<
                std::endl;
            std::cout << std::endl;
        }

        return 0;
    }
    catch(oglplus::Error& err)
    {
        std::cerr
            << "Error (in "
            << err.GLFunc()
            << "'): "
            << err.what()
            << " ["
            << err.SourceFile()
            << ":"
            << err.SourceLine()
            << "] "
            << std::endl;
    }
    return 1;
}