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/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file bmp.h Read and write support for bmps. */
#ifndef BMP_H
#define BMP_H
#include "gfx_type.h"
struct BmpInfo {
uint32 offset; ///< offset of bitmap data from .bmp file beginning
uint32 width; ///< bitmap width
uint32 height; ///< bitmap height
bool os2_bmp; ///< true if OS/2 1.x or windows 2.x bitmap
uint16 bpp; ///< bits per pixel
uint32 compression; ///< compression method (0 = none, 1 = 8-bit RLE, 2 = 4-bit RLE)
uint32 palette_size; ///< number of colours in palette
};
struct BmpData {
Colour *palette;
byte *bitmap;
};
#define BMP_BUFFER_SIZE 1024
struct BmpBuffer {
byte data[BMP_BUFFER_SIZE];
int pos;
int read;
FILE *file;
uint real_pos;
};
void BmpInitializeBuffer(BmpBuffer *buffer, FILE *file);
bool BmpReadHeader(BmpBuffer *buffer, BmpInfo *info, BmpData *data);
bool BmpReadBitmap(BmpBuffer *buffer, BmpInfo *info, BmpData *data);
void BmpDestroyData(BmpData *data);
#endif /* BMP_H */
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