/*
 * Image.h -- Image support routines.
 *
 * Authors		: Patrick LECOANET
 * Creation date	: Wed Dec  8 11:04:44 1999
 *
 * $Id$
 */

/*
 *  Copyright (c) 1999 CENA, Patrick Lecoanet --
 *
 * This code is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This code 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this code; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */


#ifndef _Image_h
#define _Image_h

#ifdef GLX
#include <GL/gl.h>
#include "Draw.h"
#endif

#include "Types.h"


typedef struct {
#ifdef GLX
  unsigned char	*t_bits;  /* Should be kept in sync with same part of */
  GLuint	texture;  /* ImageBits */
  ZnReal	t;
  ZnReal	s;
#endif
  int		width;
  int		height;
  unsigned char	*pixels;
  int		rowstride;
} BitmapBits;

typedef struct _ImageBits {
#ifdef GLX
  unsigned char	*t_bits;  /* Should be kept in sync with same part of */
  GLuint	texture;  /* BitmapBits */
  ZnReal	t;
  ZnReal	s;
#endif
  int		width;
  int		height;
  XImage	*pixels;
  XImage	*mask;
  BitmapBits	*b_bits;
  struct _ImagePixmap	*pixmaps;
} ImageBits;

ImageBits *
GetImageBits(ZnWindow	/* win */,
	     char	*/* image_name */,
	     ZnImage	/* image */);
Pixmap
GetImagePixmap(ZnWindow	/* win */,
	       char	*/* image_name */,
	       ZnImage	/* image */,
	       Pixmap	*mask_pmap);
void
InvalidateImage(char	*/* image_name */);
BitmapBits *
GetBitmapMask(Display	*/* dpy */,
	      Pixmap	/* bitmap */);

#define GetBitmapPixel(bbits, x, y) (((bbits)->pixels[(y)*(bbits)->rowstride+((x)>>3)]<<((x)&7))&0x80)

#ifdef GLX
TexFont *
GetTexFont(ZnWindow	/* win */,
	   ZnFont	/* font */);

ImageBits *
GetImageTexture(ZnWindow	/* win */,
		char		*/* image_name */,
		ZnImage		/* image */);
BitmapBits *
GetBitmapTexture(Display	*/* dpy */,
		 Pixmap		/* bitmap */);
#endif

#endif	/* _Image_h */