summaryrefslogtreecommitdiff
path: root/indra/llcommon/lldefs.h
blob: 5a4b8325f427dd2bb7f5f72a04097f7487015eb7 (plain)
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
/** 
 * @file lldefs.h
 * @brief Various generic constant definitions.
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_LLDEFS_H
#define LL_LLDEFS_H

#include "stdtypes.h"

// Often used array indices
const U32	VX			= 0;
const U32	VY			= 1;
const U32	VZ			= 2;
const U32	VW			= 3;
const U32	VS			= 3;

const U32	VRED		= 0;
const U32	VGREEN		= 1;
const U32	VBLUE		= 2;
const U32	VALPHA		= 3;

const U32	INVALID_DIRECTION = 0xFFFFFFFF;
const U32	EAST		= 0;
const U32	NORTH		= 1;
const U32	WEST		= 2;
const U32	SOUTH		= 3;

const U32	NORTHEAST	= 4;
const U32	NORTHWEST	= 5;
const U32	SOUTHWEST	= 6;
const U32	SOUTHEAST	= 7;
const U32	MIDDLE		= 8;

const U8	EAST_MASK		= 0x1<<EAST;
const U8	NORTH_MASK		= 0x1<<NORTH;
const U8	WEST_MASK		= 0x1<<WEST;
const U8	SOUTH_MASK		= 0x1<<SOUTH;

const U8	NORTHEAST_MASK	= NORTH_MASK | EAST_MASK;
const U8	NORTHWEST_MASK	= NORTH_MASK | WEST_MASK;
const U8	SOUTHWEST_MASK	= SOUTH_MASK | WEST_MASK;
const U8	SOUTHEAST_MASK	= SOUTH_MASK | EAST_MASK;

const U32 gDirOpposite[8] = {2, 3, 0, 1, 6, 7, 4, 5};
const U32 gDirAdjacent[8][2] =  {
								{4, 7},
								{4, 5},
								{5, 6},
								{6, 7},
								{0, 1},
								{1, 2},
								{2, 3},
								{0, 3}
								};

// Magnitude along the x and y axis
const S32 gDirAxes[8][2] = {
							{ 1, 0}, // east
							{ 0, 1}, // north
							{-1, 0}, // west
							{ 0,-1}, // south
							{ 1, 1}, // ne
							{-1, 1}, // nw
							{-1,-1}, // sw
							{ 1,-1}, // se
							};

const S32 gDirMasks[8] = { 
							EAST_MASK,
							NORTH_MASK,
							WEST_MASK,
							SOUTH_MASK,
							NORTHEAST_MASK,
							NORTHWEST_MASK,
							SOUTHWEST_MASK,
							SOUTHEAST_MASK
							};

// Sides of a box...
//                  . Z      __.Y
//                 /|\        /|       0 = NO_SIDE
//                  |        /         1 = FRONT_SIDE   = +x
//           +------|-----------+      2 = BACK_SIDE    = -x
//          /|      |/     /   /|      3 = LEFT_SIDE    = +y
//         / |     -5-   |/   / |      4 = RIGHT_SIDE   = -y
//        /  |     /|   -3-  /  |      5 = TOP_SIDE     = +z
//       +------------------+   |      6 = BOTTOM_SIDE  = -z
//       |   |      |  /    |   |
//       | |/|      | /     | |/|                   
//       | 2 |    | *-------|-1--------> X           
//       |/| |   -4-        |/| |                  
//       |   +----|---------|---+
//       |  /        /      |  /
//       | /       -6-      | /
//       |/        /        |/ 
//       +------------------+
const U32 NO_SIDE 		= 0;
const U32 FRONT_SIDE 	= 1;
const U32 BACK_SIDE 	= 2;
const U32 LEFT_SIDE 	= 3;
const U32 RIGHT_SIDE 	= 4;
const U32 TOP_SIDE 		= 5;
const U32 BOTTOM_SIDE 	= 6;

const U8 LL_SOUND_FLAG_NONE =         0x0;
const U8 LL_SOUND_FLAG_LOOP =         1<<0;
const U8 LL_SOUND_FLAG_SYNC_MASTER =  1<<1;
const U8 LL_SOUND_FLAG_SYNC_SLAVE =   1<<2;
const U8 LL_SOUND_FLAG_SYNC_PENDING = 1<<3;
const U8 LL_SOUND_FLAG_QUEUE =        1<<4;
const U8 LL_SOUND_FLAG_STOP =         1<<5;
const U8 LL_SOUND_FLAG_SYNC_MASK = LL_SOUND_FLAG_SYNC_MASTER | LL_SOUND_FLAG_SYNC_SLAVE | LL_SOUND_FLAG_SYNC_PENDING;

//
// *NOTE: These values may be used as hard-coded numbers in scanf() variants.
//
// --------------
// DO NOT CHANGE.
// --------------
//
const U32	LL_MAX_PATH		= 1024;		// buffer size of maximum path + filename string length

// For strings we send in messages
const U32	STD_STRING_BUF_SIZE	= 255;	// Buffer size
const U32	STD_STRING_STR_LEN	= 254;	// Length of the string (not including \0)

// *NOTE: This value is used as hard-coded numbers in scanf() variants.
// DO NOT CHANGE.
const U32	MAX_STRING			= STD_STRING_BUF_SIZE;	// Buffer size

const U32	MAXADDRSTR		= 17;		// 123.567.901.345 = 15 chars + \0 + 1 for good luck

// C++ is our friend. . . use template functions to make life easier!

// specific inlines for basic types
//
// defined for all:
//   llmin(a,b)
//   llmax(a,b)
//   llclamp(a,minimum,maximum)
//
// defined for F32, F64:
//   llclampf(a)     // clamps a to [0.0 .. 1.0]
//
// defined for U16, U32, U64, S16, S32, S64, :
//   llclampb(a)     // clamps a to [0 .. 255]
//   				   

template <class LLDATATYPE> 
inline LLDATATYPE llmax(const LLDATATYPE& d1, const LLDATATYPE& d2)
{
	return (d1 > d2) ? d1 : d2;
}

template <class LLDATATYPE> 
inline LLDATATYPE llmax(const LLDATATYPE& d1, const LLDATATYPE& d2, const LLDATATYPE& d3)
{
	LLDATATYPE r = llmax(d1,d2);
	return llmax(r, d3);
}

template <class LLDATATYPE> 
inline LLDATATYPE llmax(const LLDATATYPE& d1, const LLDATATYPE& d2, const LLDATATYPE& d3, const LLDATATYPE& d4)
{
	LLDATATYPE r1 = llmax(d1,d2);
	LLDATATYPE r2 = llmax(d3,d4);
	return llmax(r1, r2);
}

template <class LLDATATYPE> 
inline LLDATATYPE llmin(const LLDATATYPE& d1, const LLDATATYPE& d2)
{
	return (d1 < d2) ? d1 : d2;
}

template <class LLDATATYPE> 
inline LLDATATYPE llmin(const LLDATATYPE& d1, const LLDATATYPE& d2, const LLDATATYPE& d3)
{
	LLDATATYPE r = llmin(d1,d2);
	return (r < d3 ? r : d3);
}

template <class LLDATATYPE> 
inline LLDATATYPE llmin(const LLDATATYPE& d1, const LLDATATYPE& d2, const LLDATATYPE& d3, const LLDATATYPE& d4)
{
	LLDATATYPE r1 = llmin(d1,d2);
	LLDATATYPE r2 = llmin(d3,d4);
	return llmin(r1, r2);
}

template <class LLDATATYPE> 
inline LLDATATYPE llclamp(const LLDATATYPE& a, const LLDATATYPE& minval, const LLDATATYPE& maxval)
{
	if ( a < minval )
	{
		return minval;
	}
	else if ( a > maxval )
	{
		return maxval;
	}
	return a;
}

template <class LLDATATYPE> 
inline LLDATATYPE llclampf(const LLDATATYPE& a)
{
	return llmin(llmax(a, (LLDATATYPE)0), (LLDATATYPE)1);
}

template <class LLDATATYPE> 
inline LLDATATYPE llclampb(const LLDATATYPE& a)
{
	return llmin(llmax(a, (LLDATATYPE)0), (LLDATATYPE)255);
}

template <class LLDATATYPE> 
inline void llswap(LLDATATYPE& lhs, LLDATATYPE& rhs)
{
	LLDATATYPE tmp = lhs;
	lhs = rhs;
	rhs = tmp;
}

#endif // LL_LLDEFS_H