#include <iostream>
#include <SDL.h>
#include <SDL_opengl.h>

int main ()
{
    if ( SDL_Init( SDL_INIT_EVERYTHING ) < 0 )
        return 1;

    atexit( SDL_Quit );

    SDL_Window *pWindow = nullptr;
    SDL_GLContext pGLContext = nullptr;

    pWindow = SDL_CreateWindow( "SDLTest", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 800, 600, SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL );

    if ( pWindow == nullptr )
    {
        std::cout << SDL_GetError() << std::endl;
        return 1;
    }

    pGLContext = SDL_GL_CreateContext( pWindow );

    if ( pGLContext == nullptr )
    {
        std::cout << SDL_GetError() << std::endl;
        return 1;
    }

    SDL_GL_SetSwapInterval( 0 );

    SDL_Event event;
    bool bDone = false;

    while ( !bDone )
    {
        while ( SDL_PollEvent( &event ) )
        {
            if ( event.type == SDL_QUIT )
                bDone = true;
        }
        glClear( GL_COLOR_BUFFER_BIT );
        SDL_GL_SwapWindow( pWindow );
    }

    SDL_GL_DeleteContext( pGLContext );
    SDL_DestroyWindow( pWindow );

    return 0;
}