1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code 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; either version 2 of the License,
or (at your option) any later version.
Quake III Arena source 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#ifndef _BMP_H
#define _BMP_H
#define xBI_NONE 0
#define xBI_RGB 0
#define xBI_RLE4 2
#define xBI_RLE8 1
#define BMP_SIGNATURE_WORD 0x4d42
#pragma pack(1)
typedef struct {
unsigned short bfType; // signature - 'BM'
unsigned long bfSize; // file size in bytes
unsigned short bfReserved1; // 0
unsigned short bfReserved2; // 0
unsigned long bfOffBits; // offset to bitmap
} bmphd_t;
typedef struct {
unsigned long biSize; // size of this struct
long biWidth; // bmap width in pixels
long biHeight; // bmap height in pixels
unsigned short biPlanes; // num planes - always 1
unsigned short biBitCount; // bits perpixel
unsigned long biCompression; // compression flag
unsigned long biSizeImage; // image size in bytes
long biXPelsPerMeter; // horz resolution
long biYPelsPerMeter; // vert resolution
unsigned long biClrUsed; // 0 -> color table size
unsigned long biClrImportant; // important color count
} binfo_t;
typedef struct {
unsigned char blue;
unsigned char green;
unsigned char red;
unsigned char reserved;
} drgb_t;
// quake expects its palette to be bgr
// this is totally backwards but what can you do
typedef struct {
unsigned char r;
unsigned char g;
unsigned char b;
} rgb_t;
typedef struct {
unsigned char b;
unsigned char g;
unsigned char r;
} bgr_t;
typedef struct {
int bpp; // bits per pixel
int width;
int height;
unsigned char *data;
rgb_t *palette;
} bitmap_t;
void LoadBMP(char *filename, bitmap_t *bit);
void FreeBMP(bitmap_t *bitmap);
void WriteBMP(char *filename, bitmap_t *bit);
void NewBMP(int width, int height, int bpp, bitmap_t *bit);
#endif
|
