OpenTTD Source  1.11.0-beta2
bmp.h
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1 /*
2  * This file is part of OpenTTD.
3  * 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.
4  * 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.
5  * 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/>.
6  */
7 
10 #ifndef BMP_H
11 #define BMP_H
12 
13 #include "gfx_type.h"
14 
15 struct BmpInfo {
16  uint32 offset;
17  uint32 width;
18  uint32 height;
19  bool os2_bmp;
20  uint16 bpp;
21  uint32 compression;
22  uint32 palette_size;
23 };
24 
25 struct BmpData {
26  Colour *palette;
27  byte *bitmap;
28 };
29 
30 #define BMP_BUFFER_SIZE 1024
31 
32 struct BmpBuffer {
33  byte data[BMP_BUFFER_SIZE];
34  int pos;
35  int read;
36  FILE *file;
37  uint real_pos;
38 };
39 
40 void BmpInitializeBuffer(BmpBuffer *buffer, FILE *file);
41 bool BmpReadHeader(BmpBuffer *buffer, BmpInfo *info, BmpData *data);
42 bool BmpReadBitmap(BmpBuffer *buffer, BmpInfo *info, BmpData *data);
43 void BmpDestroyData(BmpData *data);
44 
45 #endif /* BMP_H */
BmpInfo::height
uint32 height
bitmap height
Definition: bmp.h:18
BmpInfo::offset
uint32 offset
offset of bitmap data from .bmp file beginning
Definition: bmp.h:16
BmpInfo
Definition: bmp.h:15
BmpInfo::bpp
uint16 bpp
bits per pixel
Definition: bmp.h:20
BmpInfo::width
uint32 width
bitmap width
Definition: bmp.h:17
BmpBuffer
Definition: bmp.h:32
Colour
Structure to access the alpha, red, green, and blue channels from a 32 bit number.
Definition: gfx_type.h:163
BmpInfo::compression
uint32 compression
compression method (0 = none, 1 = 8-bit RLE, 2 = 4-bit RLE)
Definition: bmp.h:21
BmpInfo::os2_bmp
bool os2_bmp
true if OS/2 1.x or windows 2.x bitmap
Definition: bmp.h:19
BmpInfo::palette_size
uint32 palette_size
number of colours in palette
Definition: bmp.h:22
BmpData
Definition: bmp.h:25
gfx_type.h