/*
Copyright (C) 1997-2001 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
// vid_null.c -- null video driver to aid porting efforts
// this assumes that one of the refs is statically linked to the executable

#include "../client/client.h"

viddef_t	viddef;				// global video state
qboolean	vid_ref_active;
qboolean	vid_ref_modified;

/*
==========================================================================

DIRECT LINK GLUE

==========================================================================
*/

void VID_NewWindow( int width, int height )
{
	viddef.width = width;
	viddef.height = height;
}

/*
** VID_GetModeInfo
*/
typedef struct vidmode_s
{
    const char *description;
    int         width, height;
    int         mode;
} vidmode_t;

vidmode_t vid_modes[] =
{
	{ "Mode 0: 320x240",   320, 240,   0 },
	{ "Mode 1: 400x300",   400, 300,   1 },
	{ "Mode 2: 512x384",   512, 384,   2 },
	{ "Mode 3: 640x480",   640, 480,   3 },
	{ "Mode 4: 800x600",   800, 600,   4 },
	{ "Mode 5: 960x720",   960, 720,   5 },
	{ "Mode 6: 1024x768",  1024, 768,  6 },
	{ "Mode 7: 1152x864",  1152, 864,  7 },
	{ "Mode 8: 1280x800",  1280, 800,  8 },
	{ "Mode 9: 1280x960",  1280, 960,  9 },
	{ "Mode 10: 1280x1024",  1280, 1024, 10 },
	{ "Mode 11: 1600x1200", 1600, 1200, 11 },
	{ "Mode 12: 2048x1536", 2048, 1536, 12 }
};
#define VID_NUM_MODES ( sizeof( vid_modes ) / sizeof( vid_modes[0] ) )

qboolean VID_GetModeInfo( int *width, int *height, int mode )
{
	if ( mode < 0 || mode >= VID_NUM_MODES )
		return qfalse;

    *width  = vid_modes[mode].width;
    *height = vid_modes[mode].height;

    return qtrue;
}

void VID_Restart_f( void ) {
	VID_Restart ();
}

void VID_Init( void )
{
	viddef.width = 320;
	viddef.height = 240;

	Cmd_AddCommand( "vid_restart", VID_Restart_f );

	vid_ref_active = qfalse;
	vid_ref_modified = qtrue;

	VID_CheckChanges ();
}

void VID_Shutdown( void )
{
	if( vid_ref_active ) {
		R_Shutdown ();
		vid_ref_active = qfalse;
	}

	Cmd_RemoveCommand( "vid_restart" );
}

void VID_CheckChanges( void )
{
	if( vid_ref_modified ) {
		if( vid_ref_active ) {
			R_Shutdown ();
			vid_ref_active = qfalse;
		}

	    if( R_Init (NULL, NULL) == -1 )
			Com_Error( ERR_FATAL, "Couldn't start refresh" );

		vid_ref_active = qtrue;
		vid_ref_modified = qfalse;
	}
}

void VID_Restart( void )
{
	vid_ref_modified = qtrue;
}