//-----------------------------------------------------------------------
bool RenderWindow::InitSDL(void)
{
/* Information about the current video settings. */
const SDL_VideoInfo* info = NULL;
/* Color depth in bits of our window. */
int bpp = 0;
/* Flags we will pass into SDL_SetVideoMode. */
int flags = 0;
/* First, initialize SDL's video subsystem. */
if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
/* Failed, exit. */
fprintf( stderr, "Video initialization failed: %s\n",SDL_GetError());
Quit();
return false;
}
/* Let's get some video information. */
info = SDL_GetVideoInfo( );
if( !info ) {
/* This should probably never happen. */
fprintf( stderr, "Video query failed: %s\n",SDL_GetError());
Quit();
return false;
}
bpp = info->vfmt->BitsPerPixel;
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 24 );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, 0);
flags = SDL_OPENGL;
/*Set the video mode */
if( SDL_SetVideoMode(m_WindowWidth, m_WindowHeight, bpp, flags ) == 0 ) {
fprintf( stderr, "Video mode set failed: %s\n",SDL_GetError());
Quit();
return false;
}
//initial glew
if(InitGlew()==false)
{
Quit();
return false;
}
//initial rendering state
if(InitRenderState() == false)
{
Quit();
return false;
}
//show the OpenGL library version info , this is window-system specified
GetGLInfo();
return true;
}
//main
int main(int argc, char *argv[]){
glutInit(&argc, argv);
glutInitWindowPosition(100, 100);
glutInitWindowSize(w_ancho, w_alto);
glutInitDisplayMode(GLUT_RGBA | GLUT_SINGLE);
glutCreateWindow("OpenGL Practica ");
InitGlew(); // despues de crear la primera ventana
InitGL();
glutDisplayFunc(Display); // registra la funcion de rendering
glutReshapeFunc(ReshapeSize);
glutMainLoop(); // bucle principal
return 0;
}
