[SDL] Re: Where have all my textures gone (Curtis Cooper)

[Curtis Cooper]

Hi,

I've done some more work on this issue, and I have now understood it, I 
believe.  Firstly, I now understand the problem which was pointed out to 
me about my disappearing textures in Windows.  It makes perfect sense, of 
course.  If it's creating a totally new rendering context, and textures 
and other objects are attached to rendering contexts, then it stands to 
reason that they will disappear from the scene upon redraw if the 
rendering context is recreated.  So, I know I need to reload the textures 
into texture memory right after the SDL_SetVideoMode in Windows.

However, is there another SDL function that works for OpenGL that only 
resizes the current rendering context, or places that context into 
fullscreen mode, without destroying it?

As for the second issue that I was having with the X server maintaining 
the current fullscreen resolution after SDL_Quit(), I've resolved that 
simply by reverting back to windowed mode just before calling 
SDL_Quit().  The code looks roughly like this:

//////////////////////////////////// inside Main Loop ///////////////////

if ( force_quit )
{
#ifndef WIN32
             
        // Necessary cleanup in Linux of the 
	// fullscreen mode if it exists.                    
	if ( Fullscreen() )
        {
	   // Better hope this works!
           main_screen = SDL_SetVideoMode(1280,1024, bitsPerPixel(),SDL_OPENGL);
                                if ( !main_screen )
                                {
                                    cerr << "Reset video mode failed.\n";
                                }
	}
#endif
	SDL_Quit();
	
}
/////////////////

Sorry if this solution was obvious from the start.

Thanks,
Curtis



  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *     Curtis S. Cooper, Graduate Research Assistant         *
*      Lunar and Planetary Laboratory, University of Arizona  *
 *     Kuiper Space Sciences, Rm. 318                        *
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