forked from raduprv/Eternal-Lands
-
Notifications
You must be signed in to change notification settings - Fork 0
/
dds.h
180 lines (155 loc) · 4.94 KB
/
dds.h
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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
/****************************************************************************
* dds.h
*
* Author: 2011 Daniel Jungmann <[email protected]>
* Copyright: See COPYING file that comes with this distribution
****************************************************************************/
#ifndef _DDS_H_
#define _DDS_H_
#include "platform.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MAKEFOURCC
#define MAKEFOURCC(c0, c1, c2, c3) (c0 | (c1 << 8) | (c2 << 16) | (c3 << 24))
#endif /* MAKEFOURCC */
typedef struct DdsPixelFormat
{
Uint32 m_size;
Uint32 m_flags;
Uint32 m_fourcc;
Uint32 m_bit_count;
Uint32 m_red_mask;
Uint32 m_green_mask;
Uint32 m_blue_mask;
Uint32 m_alpha_mask;
} DdsPixelFormat;
typedef struct DdsCaps
{
Uint32 m_caps1;
Uint32 m_caps2;
Uint32 m_caps3;
Uint32 m_caps4;
} DdsCaps;
typedef struct DdsHeader
{
Uint32 m_size;
Uint32 m_flags;
Uint32 m_height;
Uint32 m_width;
Uint32 m_size_or_pitch;
Uint32 m_depth;
Uint32 m_mipmap_count;
Uint32 m_reserved1[11];
DdsPixelFormat m_pixel_format;
DdsCaps m_caps;
Uint32 m_reserved2;
} DdsHeader;
#define DDS_PIXEL_FORMAT_SIZE (8 * sizeof(Uint32))
#define DDS_CAPS_SIZE (4 * sizeof(Uint32))
#define DDS_HEADER_SIZE (19 * sizeof(Uint32) + DDS_PIXEL_FORMAT_SIZE + DDS_CAPS_SIZE)
/* Header caps. */
#define DDSD_CAPS 0x00000001
#define DDSD_HEIGHT 0x00000002
#define DDSD_WIDTH 0x00000004
#define DDSD_PITCH 0x00000008
#define DDSD_PIXELFORMAT 0x00001000
#define DDSD_MIPMAPCOUNT 0x00020000
#define DDSD_LINEARSIZE 0x00080000
#define DDSD_DEPTH 0x00800000
#define DDSD_MIN_FLAGS (DDSD_CAPS | DDSD_PIXELFORMAT | DDSD_WIDTH | DDSD_HEIGHT)
/* Pixel format constants. */
#define DDPF_ALPHAPIXELS 0x00000001
#define DDPF_ALPHA 0x00000002
#define DDPF_FOURCC 0x00000004
#define DDPF_RGB 0x00000040
#define DDPF_RGBA 0x00000041
#define DDPF_PALETTEINDEXED1 0x00000800
#define DDPF_PALETTEINDEXED2 0x00001000
#define DDPF_PALETTEINDEXED4 0x00000008
#define DDPF_PALETTEINDEXED8 0x00000020
#define DDPF_LUMINANCE 0x00020000
#define DDPF_ALPHAPREMULT 0x00008000
#define DDPF_NORMAL 0x80000000
#define DDSCAPS_COMPLEX 0x00000008
#define DDSCAPS_TEXTURE 0x00001000
#define DDSCAPS_MIPMAP 0x00400000
/* Cube map constants. */
#define DDSCAPS2_CUBEMAP 0x00000200
#define DDSCAPS2_CUBEMAP_POSITIVEX 0x00000400
#define DDSCAPS2_CUBEMAP_NEGATIVEX 0x00000800
#define DDSCAPS2_CUBEMAP_POSITIVEY 0x00001000
#define DDSCAPS2_CUBEMAP_NEGATIVEY 0x00002000
#define DDSCAPS2_CUBEMAP_POSITIVEZ 0x00004000
#define DDSCAPS2_CUBEMAP_NEGATIVEZ 0x00008000
#define DDSCAPS2_CUBEMAP_ALL_FACES (DDSCAPS2_CUBEMAP_POSITIVEX | DDSCAPS2_CUBEMAP_NEGATIVEX \
| DDSCAPS2_CUBEMAP_POSITIVEY | DDSCAPS2_CUBEMAP_NEGATIVEY \
| DDSCAPS2_CUBEMAP_POSITIVEZ | DDSCAPS2_CUBEMAP_NEGATIVEZ)
#define DDSCAPS2_VOLUME 0x00200000
/* Special FourCC codes. */
#define DDSFMT_DXT1 MAKEFOURCC('D', 'X', 'T', '1')
#define DDSFMT_DXT2 MAKEFOURCC('D', 'X', 'T', '2')
#define DDSFMT_DXT3 MAKEFOURCC('D', 'X', 'T', '3')
#define DDSFMT_DXT4 MAKEFOURCC('D', 'X', 'T', '4')
#define DDSFMT_DXT5 MAKEFOURCC('D', 'X', 'T', '5')
#define DDSFMT_ATI1 MAKEFOURCC('A', 'T', 'I', '1')
#define DDSFMT_ATI2 MAKEFOURCC('A', 'T', 'I', '2')
#define DDSFMT_RXGB MAKEFOURCC('R', 'X', 'G', 'B')
/* RGB formats. */
#define DDSFMT_R8G8B8 20
#define DDSFMT_A8R8G8B8 21
#define DDSFMT_X8R8G8B8 22
#define DDSFMT_R5G6B5 23
#define DDSFMT_X1R5G5B5 24
#define DDSFMT_A1R5G5B5 25
#define DDSFMT_A4R4G4B4 26
#define DDSFMT_R3G3B2 27
#define DDSFMT_A8 28
#define DDSFMT_A8R3G3B2 29
#define DDSFMT_X4R4G4B4 30
#define DDSFMT_A2B10G10R10 31
#define DDSFMT_A8B8G8R8 32
#define DDSFMT_X8B8G8R8 33
#define DDSFMT_G16R16 34
#define DDSFMT_A2R10G10B10 35
#define DDSFMT_A16B16G16R16 36
/* Palette formats. */
#define DDSFMT_A8P8 40
#define DDSFMT_P8 41
/* Luminance formats. */
#define DDSFMT_L8 50
#define DDSFMT_A8L8 51
#define DDSFMT_A4L4 52
/* Floating point formats. */
#define DDSFMT_R16F 111
#define DDSFMT_G16R16F 112
#define DDSFMT_A16B16G16R16F 113
#define DDSFMT_R32F 114
#define DDSFMT_G32R32F 115
#define DDSFMT_A32B32G32R32F 116
/* Magic number of dds files. */
#define DDSMAGIC MAKEFOURCC('D', 'D', 'S', ' ')
typedef struct DXTColorBlock
{
Uint16 m_colors[2];
Uint8 m_indices[4];
} DXTColorBlock;
typedef struct DXTExplicitAlphaBlock
{
Uint16 m_alphas[4];
} DXTExplicitAlphaBlock;
typedef struct DXTInterpolatedAlphaBlock
{
Uint8 m_alphas[2];
Uint8 m_indices[6];
} DXTInterpolatedAlphaBlock;
void unpack_dxt1(DXTColorBlock *block, Uint8 *values);
void unpack_dxt3(DXTExplicitAlphaBlock *alpha_block, DXTColorBlock *color_block, Uint8 *values);
void unpack_dxt5(DXTInterpolatedAlphaBlock *alpha_block, DXTColorBlock *color_block, Uint8 *values);
void unpack_ati1(DXTInterpolatedAlphaBlock *block, Uint8 *values);
void unpack_ati2(DXTInterpolatedAlphaBlock *first_block, DXTInterpolatedAlphaBlock *second_block,
Uint8 *values);
#ifdef __cplusplus
} // extern "C"
#endif
#endif /* _DDS_H_ */