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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
|
//-----------------------------------------------------------------------------
//
// ImageLib Sources
// Copyright (C) 2000-2017 by Denton Woods
// Last modified: 12/27/2008
//
// Filename: src-IL/include/il_dds.h
//
// Description: Reads from a DirectDraw Surface (.dds) file.
//
//-----------------------------------------------------------------------------
#ifndef DDS_H
#define DDS_H
#include "il_internal.h"
#ifdef _WIN32
#pragma pack(push, dds_struct, 1)
#endif
typedef struct DDSHEAD
{
ILbyte Signature[4];
ILuint Size1; // size of the structure (minus MagicNum)
ILuint Flags1; // determines what fields are valid
ILuint Height; // height of surface to be created
ILuint Width; // width of input surface
ILuint LinearSize; // Formless late-allocated optimized surface size
ILuint Depth; // Depth if a volume texture
ILuint MipMapCount; // number of mip-map levels requested
ILuint AlphaBitDepth; // depth of alpha buffer requested
ILuint NotUsed[10];
ILuint Size2; // size of structure
ILuint Flags2; // pixel format flags
ILuint FourCC; // (FOURCC code)
ILuint RGBBitCount; // how many bits per pixel
ILuint RBitMask; // mask for red bit
ILuint GBitMask; // mask for green bits
ILuint BBitMask; // mask for blue bits
ILuint RGBAlphaBitMask; // mask for alpha channel
ILuint ddsCaps1, ddsCaps2, ddsCaps3, ddsCaps4; // direct draw surface capabilities
ILuint TextureStage;
} IL_PACKSTRUCT DDSHEAD;
#ifdef _WIN32
#pragma pack(pop, dds_struct)
#endif
#ifdef _WIN32
#pragma pack(push, dxt10_struct, 1)
#endif
typedef struct DXT10HEAD
{
ILuint dxgiFormat;
ILuint resourceDimension;
ILuint miscFlag;
ILuint arraySize;
ILuint miscFlags2;
} IL_PACKSTRUCT DXT10HEAD;
#ifdef _WIN32
#pragma pack(pop, dxt10_struct)
#endif
// use cast to struct instead of RGBA_MAKE as struct is
// much
typedef struct Color8888
{
ILubyte r; // change the order of names to change the
ILubyte g; // order of the output ARGB or BGRA, etc...
ILubyte b; // Last one is MSB, 1st is LSB.
ILubyte a;
} Color8888;
typedef struct Color888
{
ILubyte r; // change the order of names to change the
ILubyte g; // order of the output ARGB or BGRA, etc...
ILubyte b; // Last one is MSB, 1st is LSB.
} Color888;
typedef struct Color565
{
unsigned nBlue : 5; // order of names changes
unsigned nGreen : 6; // byte order of output to 32 bit
unsigned nRed : 5;
} Color565;
typedef struct DXTColBlock
{
ILshort col0;
ILshort col1;
// no bit fields - use bytes
ILbyte row[4];
} DXTColBlock;
typedef struct DXTAlphaBlockExplicit
{
ILshort row[4];
} DXTAlphaBlockExplicit;
typedef struct DXTAlphaBlock3BitLinear
{
ILbyte alpha0;
ILbyte alpha1;
ILbyte stuff[6];
} DXTAlphaBlock3BitLinear;
// Defines
//Those 4 were added on 20040516 to make
//the written dds files more standard compliant
#define DDS_CAPS 0x00000001L
#define DDS_HEIGHT 0x00000002L
#define DDS_WIDTH 0x00000004L
#define DDS_RGB 0x00000040L
#define DDS_PIXELFORMAT 0x00001000L
#define DDS_LUMINANCE 0x00020000L
#define DDS_ALPHAPIXELS 0x00000001L
#define DDS_ALPHA 0x00000002L
#define DDS_FOURCC 0x00000004L
#define DDS_PITCH 0x00000008L
#define DDS_COMPLEX 0x00000008L
#define DDS_TEXTURE 0x00001000L
#define DDS_MIPMAPCOUNT 0x00020000L
#define DDS_LINEARSIZE 0x00080000L
#define DDS_VOLUME 0x00200000L
#define DDS_MIPMAP 0x00400000L
#define DDS_DEPTH 0x00800000L
#define DDS_CUBEMAP 0x00000200L
#define DDS_CUBEMAP_POSITIVEX 0x00000400L
#define DDS_CUBEMAP_NEGATIVEX 0x00000800L
#define DDS_CUBEMAP_POSITIVEY 0x00001000L
#define DDS_CUBEMAP_NEGATIVEY 0x00002000L
#define DDS_CUBEMAP_POSITIVEZ 0x00004000L
#define DDS_CUBEMAP_NEGATIVEZ 0x00008000L
#define IL_MAKEFOURCC(ch0, ch1, ch2, ch3) \
((ILint)(ILbyte)(ch0) | ((ILint)(ILbyte)(ch1) << 8) | \
((ILint)(ILbyte)(ch2) << 16) | ((ILint)(ILbyte)(ch3) << 24 ))
enum PixFormat
{
PF_ARGB,
PF_RGB,
PF_DXT1,
PF_DXT2,
PF_DXT3,
PF_DXT4,
PF_DXT5,
PF_3DC,
PF_ATI1N,
PF_LUMINANCE,
PF_LUMINANCE_ALPHA,
PF_RXGB, //Doom3 normal maps
PF_A16B16G16R16,
PF_R16F,
PF_G16R16F,
PF_A16B16G16R16F,
PF_R32F,
PF_G32R32F,
PF_A32B32G32R32F,
PF_DX10,
PF_UNKNOWN = 0xFF
};
// From https://msdn.microsoft.com/en-us/library/windows/desktop/bb173059(v=vs.85).aspx
typedef enum DXGI_FORMAT
{
DXGI_FORMAT_UNKNOWN = 0,
DXGI_FORMAT_R32G32B32A32_TYPELESS = 1,
DXGI_FORMAT_R32G32B32A32_FLOAT = 2,
DXGI_FORMAT_R32G32B32A32_UINT = 3,
DXGI_FORMAT_R32G32B32A32_SINT = 4,
DXGI_FORMAT_R32G32B32_TYPELESS = 5,
DXGI_FORMAT_R32G32B32_FLOAT = 6,
DXGI_FORMAT_R32G32B32_UINT = 7,
DXGI_FORMAT_R32G32B32_SINT = 8,
DXGI_FORMAT_R16G16B16A16_TYPELESS = 9,
DXGI_FORMAT_R16G16B16A16_FLOAT = 10,
DXGI_FORMAT_R16G16B16A16_UNORM = 11,
DXGI_FORMAT_R16G16B16A16_UINT = 12,
DXGI_FORMAT_R16G16B16A16_SNORM = 13,
DXGI_FORMAT_R16G16B16A16_SINT = 14,
DXGI_FORMAT_R32G32_TYPELESS = 15,
DXGI_FORMAT_R32G32_FLOAT = 16,
DXGI_FORMAT_R32G32_UINT = 17,
DXGI_FORMAT_R32G32_SINT = 18,
DXGI_FORMAT_R32G8X24_TYPELESS = 19,
DXGI_FORMAT_D32_FLOAT_S8X24_UINT = 20,
DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS = 21,
DXGI_FORMAT_X32_TYPELESS_G8X24_UINT = 22,
DXGI_FORMAT_R10G10B10A2_TYPELESS = 23,
DXGI_FORMAT_R10G10B10A2_UNORM = 24,
DXGI_FORMAT_R10G10B10A2_UINT = 25,
DXGI_FORMAT_R11G11B10_FLOAT = 26,
DXGI_FORMAT_R8G8B8A8_TYPELESS = 27,
DXGI_FORMAT_R8G8B8A8_UNORM = 28,
DXGI_FORMAT_R8G8B8A8_UNORM_SRGB = 29,
DXGI_FORMAT_R8G8B8A8_UINT = 30,
DXGI_FORMAT_R8G8B8A8_SNORM = 31,
DXGI_FORMAT_R8G8B8A8_SINT = 32,
DXGI_FORMAT_R16G16_TYPELESS = 33,
DXGI_FORMAT_R16G16_FLOAT = 34,
DXGI_FORMAT_R16G16_UNORM = 35,
DXGI_FORMAT_R16G16_UINT = 36,
DXGI_FORMAT_R16G16_SNORM = 37,
DXGI_FORMAT_R16G16_SINT = 38,
DXGI_FORMAT_R32_TYPELESS = 39,
DXGI_FORMAT_D32_FLOAT = 40,
DXGI_FORMAT_R32_FLOAT = 41,
DXGI_FORMAT_R32_UINT = 42,
DXGI_FORMAT_R32_SINT = 43,
DXGI_FORMAT_R24G8_TYPELESS = 44,
DXGI_FORMAT_D24_UNORM_S8_UINT = 45,
DXGI_FORMAT_R24_UNORM_X8_TYPELESS = 46,
DXGI_FORMAT_X24_TYPELESS_G8_UINT = 47,
DXGI_FORMAT_R8G8_TYPELESS = 48,
DXGI_FORMAT_R8G8_UNORM = 49,
DXGI_FORMAT_R8G8_UINT = 50,
DXGI_FORMAT_R8G8_SNORM = 51,
DXGI_FORMAT_R8G8_SINT = 52,
DXGI_FORMAT_R16_TYPELESS = 53,
DXGI_FORMAT_R16_FLOAT = 54,
DXGI_FORMAT_D16_UNORM = 55,
DXGI_FORMAT_R16_UNORM = 56,
DXGI_FORMAT_R16_UINT = 57,
DXGI_FORMAT_R16_SNORM = 58,
DXGI_FORMAT_R16_SINT = 59,
DXGI_FORMAT_R8_TYPELESS = 60,
DXGI_FORMAT_R8_UNORM = 61,
DXGI_FORMAT_R8_UINT = 62,
DXGI_FORMAT_R8_SNORM = 63,
DXGI_FORMAT_R8_SINT = 64,
DXGI_FORMAT_A8_UNORM = 65,
DXGI_FORMAT_R1_UNORM = 66,
DXGI_FORMAT_R9G9B9E5_SHAREDEXP = 67,
DXGI_FORMAT_R8G8_B8G8_UNORM = 68,
DXGI_FORMAT_G8R8_G8B8_UNORM = 69,
DXGI_FORMAT_BC1_TYPELESS = 70,
DXGI_FORMAT_BC1_UNORM = 71,
DXGI_FORMAT_BC1_UNORM_SRGB = 72,
DXGI_FORMAT_BC2_TYPELESS = 73,
DXGI_FORMAT_BC2_UNORM = 74,
DXGI_FORMAT_BC2_UNORM_SRGB = 75,
DXGI_FORMAT_BC3_TYPELESS = 76,
DXGI_FORMAT_BC3_UNORM = 77,
DXGI_FORMAT_BC3_UNORM_SRGB = 78,
DXGI_FORMAT_BC4_TYPELESS = 79,
DXGI_FORMAT_BC4_UNORM = 80,
DXGI_FORMAT_BC4_SNORM = 81,
DXGI_FORMAT_BC5_TYPELESS = 82,
DXGI_FORMAT_BC5_UNORM = 83,
DXGI_FORMAT_BC5_SNORM = 84,
DXGI_FORMAT_B5G6R5_UNORM = 85,
DXGI_FORMAT_B5G5R5A1_UNORM = 86,
DXGI_FORMAT_B8G8R8A8_UNORM = 87,
DXGI_FORMAT_B8G8R8X8_UNORM = 88,
DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM = 89,
DXGI_FORMAT_B8G8R8A8_TYPELESS = 90,
DXGI_FORMAT_B8G8R8A8_UNORM_SRGB = 91,
DXGI_FORMAT_B8G8R8X8_TYPELESS = 92,
DXGI_FORMAT_B8G8R8X8_UNORM_SRGB = 93,
DXGI_FORMAT_BC6H_TYPELESS = 94,
DXGI_FORMAT_BC6H_UF16 = 95,
DXGI_FORMAT_BC6H_SF16 = 96,
DXGI_FORMAT_BC7_TYPELESS = 97,
DXGI_FORMAT_BC7_UNORM = 98,
DXGI_FORMAT_BC7_UNORM_SRGB = 99,
DXGI_FORMAT_AYUV = 100,
DXGI_FORMAT_Y410 = 101,
DXGI_FORMAT_Y416 = 102,
DXGI_FORMAT_NV12 = 103,
DXGI_FORMAT_P010 = 104,
DXGI_FORMAT_P016 = 105,
DXGI_FORMAT_420_OPAQUE = 106,
DXGI_FORMAT_YUY2 = 107,
DXGI_FORMAT_Y210 = 108,
DXGI_FORMAT_Y216 = 109,
DXGI_FORMAT_NV11 = 110,
DXGI_FORMAT_AI44 = 111,
DXGI_FORMAT_IA44 = 112,
DXGI_FORMAT_P8 = 113,
DXGI_FORMAT_A8P8 = 114,
DXGI_FORMAT_B4G4R4A4_UNORM = 115,
DXGI_FORMAT_P208 = 130,
DXGI_FORMAT_V208 = 131,
DXGI_FORMAT_V408 = 132,
DXGI_FORMAT_FORCE_UINT = 0xffffffff
} DXGI_FORMAT;
// From https://msdn.microsoft.com/en-us/library/windows/desktop/bb172411(v=vs.85).aspx
typedef enum D3D10_RESOURCE_DIMENSION
{
D3D10_RESOURCE_DIMENSION_UNKNOWN = 0,
D3D10_RESOURCE_DIMENSION_BUFFER = 1,
D3D10_RESOURCE_DIMENSION_TEXTURE1D = 2,
D3D10_RESOURCE_DIMENSION_TEXTURE2D = 3,
D3D10_RESOURCE_DIMENSION_TEXTURE3D = 4
} D3D10_RESOURCE_DIMENSION;
#define CUBEMAP_SIDES 6
#ifdef __cplusplus
extern "C" {
#endif
// Internal functions
ILboolean iLoadDdsInternal(void);
ILboolean iIsValidDds(void);
ILboolean iCheckDds(DDSHEAD *Head);
void AdjustVolumeTexture(DDSHEAD *Head, ILuint CompFormat, ILboolean IsDXT10);
ILboolean ReadData(ILuint CompFormat, ILboolean IsDXT10);
ILboolean AllocImage(ILuint CompFormat, ILboolean IsDXT10);
ILboolean DdsDecompress(ILuint CompFormat, ILboolean IsDXT10);
ILboolean ReadMipmaps(ILuint CompFormat, ILboolean IsDXT10);
ILuint DecodePixelFormat(ILuint *CompFormat);
void DxtcReadColor(ILushort Data, Color8888* Out);
void DxtcReadColors(const ILubyte* Data, Color8888* Out);
ILboolean DecompressARGB(ILuint CompFormat);
ILboolean DecompressARGB16(ILuint CompFormat);
ILboolean DecompressARGBDX10(ILuint CompFormat);
ILboolean DecompressDXT1(ILimage *lImage, ILubyte *lCompData);
ILboolean DecompressDXT2(ILimage *lImage, ILubyte *lCompData);
ILboolean DecompressDXT3(ILimage *lImage, ILubyte *lCompData);
ILboolean DecompressDXT4(ILimage *lImage, ILubyte *lCompData);
ILboolean DecompressDXT5(ILimage *lImage, ILubyte *lCompData);
ILboolean Decompress3Dc();
ILboolean DecompressAti1n();
ILboolean DecompressRXGB();
ILboolean iConvFloat16ToFloat32(ILuint* dest, ILushort* src, ILuint size);
ILboolean DecompressFloat(ILuint lCompFormat);
void CorrectPreMult();
void GetBitsFromMask(ILuint Mask, ILuint *ShiftLeft, ILuint *ShiftRight);
ILboolean iSaveDdsInternal(void);
ILboolean WriteHeader(ILimage *Image, ILenum DXTCFormat, ILuint CubeFlags);
ILushort *CompressTo565(ILimage *Image);
ILubyte *CompressTo88(ILimage *Image);
ILuint Compress(ILimage *Image, ILenum DXTCFormat);
ILboolean GetBlock(ILushort *Block, ILushort *Data, ILimage *Image, ILuint XPos, ILuint YPos);
ILboolean GetAlphaBlock(ILubyte *Block, ILubyte *Data, ILimage *Image, ILuint XPos, ILuint YPos);
ILboolean Get3DcBlock(ILubyte *Block, ILubyte *Data, ILimage *Image, ILuint XPos, ILuint YPos, int channel);
void ShortToColor565(ILushort Pixel, Color565 *Colour);
void ShortToColor888(ILushort Pixel, Color888 *Colour);
ILushort Color565ToShort(Color565 *Colour);
ILushort Color888ToShort(Color888 *Colour);
ILuint GenBitMask(ILushort ex0, ILushort ex1, ILuint NumCols, ILushort *In, ILubyte *Alpha, Color888 *OutCol);
void GenAlphaBitMask(ILubyte a0, ILubyte a1, ILubyte *In, ILubyte *Mask, ILubyte *Out);
ILuint RMSAlpha(ILubyte *Orig, ILubyte *Test);
ILuint Distance(Color888 *c1, Color888 *c2);
void ChooseEndpoints(ILushort *Block, ILushort *ex0, ILushort *ex1);
void ChooseAlphaEndpoints(ILubyte *Block, ILubyte *a0, ILubyte *a1);
void CorrectEndDXT1(ILushort *ex0, ILushort *ex1, ILboolean HasAlpha);
void PreMult(ILushort *Data, ILubyte *Alpha);
extern ILuint CubemapDirections[CUBEMAP_SIDES];
#ifdef __cplusplus
}
#endif
#endif//DDS_H
|