bmp.h

/* Copyright (C)2004 Landmark Graphics Corporation
 * Copyright (C)2005 Sun Microsystems, Inc.
 *
 * This library is free software and may be redistributed and/or modified under
 * the terms of the wxWindows Library License, Version 3.1 or (at your option)
 * any later version.  The full license is in the LICENSE.txt file included
 * with this distribution.
 *
 * This library 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
 * wxWindows Library License for more details.
*/

// This provides rudimentary facilities for loading and saving true color
// BMP and PPM files

#ifndef __BMP_H__
#define __BMP_H__

#define BMPPIXELFORMATS 6
enum BMPPIXELFORMAT {BMP_RGB=0, BMP_RGBA, BMP_BGR, BMP_BGRA, BMP_ABGR, BMP_ARGB};

#ifdef __cplusplus
extern "C" {
#endif

// This will load a Windows bitmap from a file and return a buffer with the
// specified pixel format, scanline alignment, and orientation.  The width and
// height are returned in w and h.

int loadbmp(char *filename, unsigned char **buf, int *w, int *h,
	enum BMPPIXELFORMAT f, int align, int dstbottomup);

// This will save a buffer with the specified pixel format, pitch, orientation,
// width, and height as a 24-bit Windows bitmap or PPM (the filename determines
// which format to use)

int savebmp(char *filename, unsigned char *buf, int w, int h,
	enum BMPPIXELFORMAT f, int srcpitch, int srcbottomup);

const char *bmpgeterr(void);

#ifdef __cplusplus
}
#endif

#endif