/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.  
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
*/
/*
 * $Source: /cvsroot/dxx-rebirth/d1x-rebirth/2d/pixel.c,v $
 * $Revision: 1.1.1.1 $
 * $Author: zicodxx $
 * $Date: 2006/03/17 19:39:01 $
 *
 * Graphical routines for setting a pixel.
 *
 * $Log: pixel.c,v $
 * Revision 1.1.1.1  2006/03/17 19:39:01  zicodxx
 * initial import
 *
 * Revision 1.3  1999/10/07 02:27:14  donut
 * OGL includes to remove warnings
 *
 * Revision 1.2  1999/09/30 23:02:27  donut
 * opengl direct support for ingame and normal menus, fonts as textures, and automap support
 *
 * Revision 1.1.1.1  1999/06/14 21:57:32  donut
 * Import of d1x 1.37 source.
 *
 * Revision 1.5  1994/11/18  22:50:26  john
 * Changed shorts to ints in parameters.
 * 
 * Revision 1.4  1993/10/15  16:22:26  john
 * *** empty log message ***
 * 
 * Revision 1.3  1993/09/29  17:31:27  john
 * optimized vesa pixel stuff
 * 
 * Revision 1.2  1993/09/29  16:15:15  john
 * optimized
 * 
 * Revision 1.1  1993/09/08  11:44:09  john
 * Initial revision
 * 
 *
 */

#include "u_mem.h"

#include "gr.h"
#include "grdef.h"
#include "vesa.h"
#include "modex.h"
#ifdef OGL
#include "ogl_init.h"
#endif


#ifndef D1XD3D
void gr_upixel( int x, int y )
{
	switch (TYPE)
	{
#ifdef OGL
		case BM_OGL:
			ogl_upixelc(x,y,COLOR);
			return;
#endif
	case BM_LINEAR:
		DATA[ ROWSIZE*y+x ] = COLOR;
		return;
#ifdef __MSDOS__
        case BM_MODEX:
		gr_modex_setplane( (x+XOFFSET) & 3 );
		gr_video_memory[(ROWSIZE * (y+YOFFSET)) + ((x+XOFFSET)>>2)] = COLOR;
		return;
	case BM_SVGA:
		gr_vesa_pixel( COLOR, (unsigned int)DATA + (unsigned int)ROWSIZE * y + x);
		return;
#endif
        }
}
#endif

void gr_pixel( int x, int y )
{
	if ((x<0) || (y<0) || (x>=GWIDTH) || (y>=GHEIGHT)) return;
	gr_upixel (x, y);
}

#ifndef D1XD3D
inline void gr_bm_upixel( grs_bitmap * bm, int x, int y, unsigned char color )
{
	switch (bm->bm_type)
	{
#ifdef OGL
		case BM_OGL:
			ogl_upixelc(bm->bm_x+x,bm->bm_y+y,color);
			return;
#endif
	case BM_LINEAR:
		bm->bm_data[ bm->bm_rowsize*y+x ] = color;
		return;
#ifdef __MSDOS__
        case BM_MODEX:
		x += bm->bm_x;
		y += bm->bm_y;
		gr_modex_setplane( x & 3 );
		gr_video_memory[(bm->bm_rowsize * y) + (x/4)] = color;
		return;
	case BM_SVGA:
		gr_vesa_pixel(color,(unsigned int)bm->bm_data + (unsigned int)bm->bm_rowsize * y + x);
		return;
#endif
        }
}
#endif

void gr_bm_pixel( grs_bitmap * bm, int x, int y, unsigned char color )
{
	if ((x<0) || (y<0) || (x>=bm->bm_w) || (y>=bm->bm_h)) return;
	gr_bm_upixel (bm, x, y, color);
}