/*
** GLimp_Shutdown
**
** This routine does all OS specific shutdown procedures for the OpenGL
** subsystem.
*/
void GLimp_Shutdown( void )
{
// const char *strings[] = { "soft", "hard" };
const char *success[] = { "failed", "success" };
int retVal;
// FIXME: Brian, we need better fallbacks from partially initialized failures
if ( !qwglMakeCurrent ) {
return;
}
ri.Printf( PRINT_ALL, "Shutting down OpenGL subsystem\n" );
// restore gamma. We do this first because 3Dfx's extension needs a valid OGL subsystem
WG_RestoreGamma();
// set current context to NULL
if ( qwglMakeCurrent )
{
retVal = qwglMakeCurrent( NULL, NULL ) != 0;
ri.Printf( PRINT_ALL, "...wglMakeCurrent( NULL, NULL ): %s\n", success[retVal] );
}
// delete HGLRC
if ( glw_state.hGLRC )
{
retVal = qwglDeleteContext( glw_state.hGLRC ) != 0;
ri.Printf( PRINT_ALL, "...deleting GL context: %s\n", success[retVal] );
glw_state.hGLRC = NULL;
}
// release DC
if ( glw_state.hDC )
{
retVal = ReleaseDC( g_wv.hWnd, glw_state.hDC ) != 0;
ri.Printf( PRINT_ALL, "...releasing DC: %s\n", success[retVal] );
glw_state.hDC = NULL;
}
// destroy window
if ( g_wv.hWnd )
{
ri.Printf( PRINT_ALL, "...destroying window\n" );
ShowWindow( g_wv.hWnd, SW_HIDE );
DestroyWindow( g_wv.hWnd );
g_wv.hWnd = NULL;
glw_state.pixelFormatSet = qfalse;
}
// close the r_logFile
if ( glw_state.log_fp )
{
fclose( glw_state.log_fp );
glw_state.log_fp = 0;
}
// reset display settings
if ( glw_state.cdsFullscreen )
{
ri.Printf( PRINT_ALL, "...resetting display\n" );
ChangeDisplaySettings( 0, 0 );
glw_state.cdsFullscreen = qfalse;
}
// shutdown QGL subsystem
QGL_Shutdown();
memset( &glConfig, 0, sizeof( glConfig ) );
memset( &glState, 0, sizeof( glState ) );
}
qboolean GLW_ResetDesktopMode( void )
{
WG_RestoreGamma();
ChangeDisplaySettings( 0, 0 );
return qtrue;
}
