#include "glimagerenderer.h"
 
 
 
 
GlImageRenderer::GlImageRenderer(unsigned int width,unsigned int height)
    : GlRenderer(width,height,debug)
{
    this->filename=std::string("out.png");
    this->scene= new GlScene(width,height);
}
 
 
GlImageRenderer::GlImageRenderer(unsigned int width,unsigned int height,std::string filename)
    : GlRenderer(width,height,false)
{
    this->filename=filename;
    this->scene= new GlScene(width,height);
}
 
static int singleBufferAttributess[] = {
    GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
    GLX_RENDER_TYPE, GLX_RGBA_BIT,
    GLX_RED_SIZE, 1, /* Request a single buffered color buffer */
    GLX_GREEN_SIZE, 1, /* with the maximum number of color bits  */
    GLX_BLUE_SIZE, 1, /* for each component                     */
    None
};
 
 
 
 
void GlImageRenderer::init(DrawableSet * set)
{
 
    /* Open a connection to the X server */
    dpy = XOpenDisplay(NULL);
    if (dpy == NULL)
    {
        printf("Unable to open a connection to the X server\n");
        exit(EXIT_FAILURE);
    }
 
    /* Request a suitable framebuffer configuration - try for a double
     ** buffered configuration first */
    fbConfigs = glXChooseFBConfig(dpy, DefaultScreen(dpy), singleBufferAttributess, &numReturned);
 
    if (fbConfigs == NULL)
    {
        printf("glXChooseFBConfig Failed\n");
    }
 
 
 
    /* Create a GLX context for OpenGL rendering */
    context = glXCreateNewContext(dpy, fbConfigs[0], GLX_RGBA_TYPE, NULL, True);
 
    /* Create a Pbuffer*/
 
    int  attrib_list[5];
    attrib_list[0]= GLX_PBUFFER_WIDTH;
    attrib_list[1]= this->width;
    attrib_list[2]= GLX_PBUFFER_HEIGHT;
    attrib_list[3]= this->height;
    attrib_list[4]= None;
 
    GLXPbuffer glxBuff = glXCreatePbuffer (dpy, fbConfigs[0], (int *)&attrib_list);
 
 
    glXMakeContextCurrent(dpy, glxBuff, glxBuff, context);
 
 
 
    int argc = 0;
    glutInit(&argc, 0);
 
 
    scene->setKeepProportionXY(true);
    scene->init(set);
    set->init(this->scene);
 
}
 
 
void GlImageRenderer::run()
{
    scene->updateView();
    scene->setOpenglPojectionMatrix();
 
    scene->clearBuffer();
    scene->loadIdentity();
 
    scene->drawText();
 
    scene->setOpenglModelViewMatrix();
    scene->draw();
 
    writePng();
}