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-rw-r--r-- | libraries/ode-0.9/include/ode/common.h | 388 |
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diff --git a/libraries/ode-0.9/include/ode/common.h b/libraries/ode-0.9/include/ode/common.h new file mode 100644 index 0000000..7f0a12d --- /dev/null +++ b/libraries/ode-0.9/include/ode/common.h | |||
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1 | /************************************************************************* | ||
2 | * * | ||
3 | * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. * | ||
4 | * All rights reserved. Email: russ@q12.org Web: www.q12.org * | ||
5 | * * | ||
6 | * This library is free software; you can redistribute it and/or * | ||
7 | * modify it under the terms of EITHER: * | ||
8 | * (1) The GNU Lesser General Public License as published by the Free * | ||
9 | * Software Foundation; either version 2.1 of the License, or (at * | ||
10 | * your option) any later version. The text of the GNU Lesser * | ||
11 | * General Public License is included with this library in the * | ||
12 | * file LICENSE.TXT. * | ||
13 | * (2) The BSD-style license that is included with this library in * | ||
14 | * the file LICENSE-BSD.TXT. * | ||
15 | * * | ||
16 | * This library is distributed in the hope that it will be useful, * | ||
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * | ||
19 | * LICENSE.TXT and LICENSE-BSD.TXT for more details. * | ||
20 | * * | ||
21 | *************************************************************************/ | ||
22 | |||
23 | #ifndef _ODE_COMMON_H_ | ||
24 | #define _ODE_COMMON_H_ | ||
25 | #include <ode/config.h> | ||
26 | #include <ode/error.h> | ||
27 | #include <math.h> | ||
28 | |||
29 | #ifdef __cplusplus | ||
30 | extern "C" { | ||
31 | #endif | ||
32 | |||
33 | |||
34 | /* configuration stuff */ | ||
35 | |||
36 | /* the efficient alignment. most platforms align data structures to some | ||
37 | * number of bytes, but this is not always the most efficient alignment. | ||
38 | * for example, many x86 compilers align to 4 bytes, but on a pentium it | ||
39 | * is important to align doubles to 8 byte boundaries (for speed), and | ||
40 | * the 4 floats in a SIMD register to 16 byte boundaries. many other | ||
41 | * platforms have similar behavior. setting a larger alignment can waste | ||
42 | * a (very) small amount of memory. NOTE: this number must be a power of | ||
43 | * two. this is set to 16 by default. | ||
44 | */ | ||
45 | #define EFFICIENT_ALIGNMENT 16 | ||
46 | |||
47 | |||
48 | /* constants */ | ||
49 | |||
50 | /* pi and 1/sqrt(2) are defined here if necessary because they don't get | ||
51 | * defined in <math.h> on some platforms (like MS-Windows) | ||
52 | */ | ||
53 | |||
54 | #ifndef M_PI | ||
55 | #define M_PI REAL(3.1415926535897932384626433832795029) | ||
56 | #endif | ||
57 | #ifndef M_SQRT1_2 | ||
58 | #define M_SQRT1_2 REAL(0.7071067811865475244008443621048490) | ||
59 | #endif | ||
60 | |||
61 | |||
62 | /* debugging: | ||
63 | * IASSERT is an internal assertion, i.e. a consistency check. if it fails | ||
64 | * we want to know where. | ||
65 | * UASSERT is a user assertion, i.e. if it fails a nice error message | ||
66 | * should be printed for the user. | ||
67 | * AASSERT is an arguments assertion, i.e. if it fails "bad argument(s)" | ||
68 | * is printed. | ||
69 | * DEBUGMSG just prints out a message | ||
70 | */ | ||
71 | |||
72 | #ifndef dNODEBUG | ||
73 | #ifdef __GNUC__ | ||
74 | #define dIASSERT(a) if (!(a)) dDebug (d_ERR_IASSERT, \ | ||
75 | "assertion \"" #a "\" failed in %s() [%s]",__FUNCTION__,__FILE__); | ||
76 | #define dUASSERT(a,msg) if (!(a)) dDebug (d_ERR_UASSERT, \ | ||
77 | msg " in %s()", __FUNCTION__); | ||
78 | #define dDEBUGMSG(msg) dMessage (d_ERR_UASSERT, \ | ||
79 | msg " in %s() File %s Line %d", __FUNCTION__, __FILE__,__LINE__); | ||
80 | #else | ||
81 | #define dIASSERT(a) if (!(a)) dDebug (d_ERR_IASSERT, \ | ||
82 | "assertion \"" #a "\" failed in %s:%d",__FILE__,__LINE__); | ||
83 | #define dUASSERT(a,msg) if (!(a)) dDebug (d_ERR_UASSERT, \ | ||
84 | msg " (%s:%d)", __FILE__,__LINE__); | ||
85 | #define dDEBUGMSG(msg) dMessage (d_ERR_UASSERT, \ | ||
86 | msg " (%s:%d)", __FILE__,__LINE__); | ||
87 | #endif | ||
88 | #else | ||
89 | #define dIASSERT(a) ; | ||
90 | #define dUASSERT(a,msg) ; | ||
91 | #define dDEBUGMSG(msg) ; | ||
92 | #endif | ||
93 | #define dAASSERT(a) dUASSERT(a,"Bad argument(s)") | ||
94 | |||
95 | // Macro used to suppress unused variable warning | ||
96 | #define dVARIABLEUSED(a) ((void)a) | ||
97 | |||
98 | /* floating point data type, vector, matrix and quaternion types */ | ||
99 | |||
100 | #if defined(dSINGLE) | ||
101 | typedef float dReal; | ||
102 | #ifdef dDOUBLE | ||
103 | #error You can only #define dSINGLE or dDOUBLE, not both. | ||
104 | #endif // dDOUBLE | ||
105 | #elif defined(dDOUBLE) | ||
106 | typedef double dReal; | ||
107 | #else | ||
108 | #error You must #define dSINGLE or dDOUBLE | ||
109 | #endif | ||
110 | |||
111 | // Detect if we've got both trimesh engines enabled. | ||
112 | #if dTRIMESH_ENABLED | ||
113 | #if dTRIMESH_OPCODE && dTRIMESH_GIMPACT | ||
114 | #error You can only #define dTRIMESH_OPCODE or dTRIMESH_GIMPACT, not both. | ||
115 | #endif | ||
116 | #endif // dTRIMESH_ENABLED | ||
117 | |||
118 | /* round an integer up to a multiple of 4, except that 0 and 1 are unmodified | ||
119 | * (used to compute matrix leading dimensions) | ||
120 | */ | ||
121 | #define dPAD(a) (((a) > 1) ? ((((a)-1)|3)+1) : (a)) | ||
122 | |||
123 | /* these types are mainly just used in headers */ | ||
124 | typedef dReal dVector3[4]; | ||
125 | typedef dReal dVector4[4]; | ||
126 | typedef dReal dMatrix3[4*3]; | ||
127 | typedef dReal dMatrix4[4*4]; | ||
128 | typedef dReal dMatrix6[8*6]; | ||
129 | typedef dReal dQuaternion[4]; | ||
130 | |||
131 | |||
132 | /* precision dependent scalar math functions */ | ||
133 | |||
134 | #if defined(dSINGLE) | ||
135 | |||
136 | #define REAL(x) (x ## f) /* form a constant */ | ||
137 | #define dRecip(x) ((1.0f/(x))) /* reciprocal */ | ||
138 | #define dSqrt(x) (sqrtf(x)) /* square root */ | ||
139 | #define dRecipSqrt(x) ((1.0f/sqrtf(x))) /* reciprocal square root */ | ||
140 | #define dSin(x) (sinf(x)) /* sine */ | ||
141 | #define dCos(x) (cosf(x)) /* cosine */ | ||
142 | #define dFabs(x) (fabsf(x)) /* absolute value */ | ||
143 | #define dAtan2(y,x) (atan2f(y,x)) /* arc tangent with 2 args */ | ||
144 | #define dFMod(a,b) (fmodf(a,b)) /* modulo */ | ||
145 | #define dFloor(x) floorf(x) /* floor */ | ||
146 | |||
147 | #ifdef HAVE___ISNANF | ||
148 | #define dIsNan(x) (__isnanf(x)) | ||
149 | #elif defined(HAVE__ISNANF) | ||
150 | #define dIsNan(x) (_isnanf(x)) | ||
151 | #elif defined(HAVE_ISNANF) | ||
152 | #define dIsNan(x) (isnanf(x)) | ||
153 | #else | ||
154 | /* | ||
155 | fall back to _isnan which is the VC way, | ||
156 | this may seem redundant since we already checked | ||
157 | for _isnan before, but if isnan is detected by | ||
158 | configure but is not found during compilation | ||
159 | we should always make sure we check for __isnanf, | ||
160 | _isnanf and isnanf in that order before falling | ||
161 | back to a default | ||
162 | */ | ||
163 | #define dIsNan(x) (_isnan(x)) | ||
164 | #endif | ||
165 | |||
166 | #define dCopySign(a,b) ((dReal)copysignf(a,b)) | ||
167 | |||
168 | #elif defined(dDOUBLE) | ||
169 | |||
170 | #define REAL(x) (x) | ||
171 | #define dRecip(x) (1.0/(x)) | ||
172 | #define dSqrt(x) sqrt(x) | ||
173 | #define dRecipSqrt(x) (1.0/sqrt(x)) | ||
174 | #define dSin(x) sin(x) | ||
175 | #define dCos(x) cos(x) | ||
176 | #define dFabs(x) fabs(x) | ||
177 | #define dAtan2(y,x) atan2((y),(x)) | ||
178 | #define dFMod(a,b) (fmod((a),(b))) | ||
179 | #define dFloor(x) floor(x) | ||
180 | |||
181 | #ifdef HAVE___ISNAN | ||
182 | #define dIsNan(x) (__isnan(x)) | ||
183 | #elif defined(HAVE__ISNAN) | ||
184 | #define dIsNan(x) (_isnan(x)) | ||
185 | #elif defined(HAVE_ISNAN) | ||
186 | #define dIsNan(x) (isnan(x)) | ||
187 | #else | ||
188 | #define dIsNan(x) (_isnan(x)) | ||
189 | #endif | ||
190 | |||
191 | #define dCopySign(a,b) (copysign((a),(b))) | ||
192 | |||
193 | #else | ||
194 | #error You must #define dSINGLE or dDOUBLE | ||
195 | #endif | ||
196 | |||
197 | |||
198 | /* utility */ | ||
199 | |||
200 | |||
201 | /* round something up to be a multiple of the EFFICIENT_ALIGNMENT */ | ||
202 | |||
203 | #define dEFFICIENT_SIZE(x) ((((x)-1)|(EFFICIENT_ALIGNMENT-1))+1) | ||
204 | |||
205 | |||
206 | /* alloca aligned to the EFFICIENT_ALIGNMENT. note that this can waste | ||
207 | * up to 15 bytes per allocation, depending on what alloca() returns. | ||
208 | */ | ||
209 | |||
210 | #define dALLOCA16(n) \ | ||
211 | ((char*)dEFFICIENT_SIZE(((size_t)(alloca((n)+(EFFICIENT_ALIGNMENT-1)))))) | ||
212 | |||
213 | |||
214 | // Use the error-checking memory allocation system. Because this system uses heap | ||
215 | // (malloc) instead of stack (alloca), it is slower. However, it allows you to | ||
216 | // simulate larger scenes, as well as handle out-of-memory errors in a somewhat | ||
217 | // graceful manner | ||
218 | |||
219 | // #define dUSE_MALLOC_FOR_ALLOCA | ||
220 | |||
221 | #ifdef dUSE_MALLOC_FOR_ALLOCA | ||
222 | enum { | ||
223 | d_MEMORY_OK = 0, /* no memory errors */ | ||
224 | d_MEMORY_OUT_OF_MEMORY /* malloc failed due to out of memory error */ | ||
225 | }; | ||
226 | |||
227 | #endif | ||
228 | |||
229 | |||
230 | |||
231 | /* internal object types (all prefixed with `dx') */ | ||
232 | |||
233 | struct dxWorld; /* dynamics world */ | ||
234 | struct dxSpace; /* collision space */ | ||
235 | struct dxBody; /* rigid body (dynamics object) */ | ||
236 | struct dxGeom; /* geometry (collision object) */ | ||
237 | struct dxJoint; | ||
238 | struct dxJointNode; | ||
239 | struct dxJointGroup; | ||
240 | |||
241 | typedef struct dxWorld *dWorldID; | ||
242 | typedef struct dxSpace *dSpaceID; | ||
243 | typedef struct dxBody *dBodyID; | ||
244 | typedef struct dxGeom *dGeomID; | ||
245 | typedef struct dxJoint *dJointID; | ||
246 | typedef struct dxJointGroup *dJointGroupID; | ||
247 | |||
248 | |||
249 | /* error numbers */ | ||
250 | |||
251 | enum { | ||
252 | d_ERR_UNKNOWN = 0, /* unknown error */ | ||
253 | d_ERR_IASSERT, /* internal assertion failed */ | ||
254 | d_ERR_UASSERT, /* user assertion failed */ | ||
255 | d_ERR_LCP /* user assertion failed */ | ||
256 | }; | ||
257 | |||
258 | |||
259 | /* joint type numbers */ | ||
260 | |||
261 | enum { | ||
262 | dJointTypeNone = 0, /* or "unknown" */ | ||
263 | dJointTypeBall, | ||
264 | dJointTypeHinge, | ||
265 | dJointTypeSlider, | ||
266 | dJointTypeContact, | ||
267 | dJointTypeUniversal, | ||
268 | dJointTypeHinge2, | ||
269 | dJointTypeFixed, | ||
270 | dJointTypeNull, | ||
271 | dJointTypeAMotor, | ||
272 | dJointTypeLMotor, | ||
273 | dJointTypePlane2D, | ||
274 | dJointTypePR | ||
275 | }; | ||
276 | |||
277 | |||
278 | /* an alternative way of setting joint parameters, using joint parameter | ||
279 | * structures and member constants. we don't actually do this yet. | ||
280 | */ | ||
281 | |||
282 | /* | ||
283 | typedef struct dLimot { | ||
284 | int mode; | ||
285 | dReal lostop, histop; | ||
286 | dReal vel, fmax; | ||
287 | dReal fudge_factor; | ||
288 | dReal bounce, soft; | ||
289 | dReal suspension_erp, suspension_cfm; | ||
290 | } dLimot; | ||
291 | |||
292 | enum { | ||
293 | dLimotLoStop = 0x0001, | ||
294 | dLimotHiStop = 0x0002, | ||
295 | dLimotVel = 0x0004, | ||
296 | dLimotFMax = 0x0008, | ||
297 | dLimotFudgeFactor = 0x0010, | ||
298 | dLimotBounce = 0x0020, | ||
299 | dLimotSoft = 0x0040 | ||
300 | }; | ||
301 | */ | ||
302 | |||
303 | |||
304 | /* standard joint parameter names. why are these here? - because we don't want | ||
305 | * to include all the joint function definitions in joint.cpp. hmmmm. | ||
306 | * MSVC complains if we call D_ALL_PARAM_NAMES_X with a blank second argument, | ||
307 | * which is why we have the D_ALL_PARAM_NAMES macro as well. please copy and | ||
308 | * paste between these two. | ||
309 | */ | ||
310 | |||
311 | #define D_ALL_PARAM_NAMES(start) \ | ||
312 | /* parameters for limits and motors */ \ | ||
313 | dParamLoStop = start, \ | ||
314 | dParamHiStop, \ | ||
315 | dParamVel, \ | ||
316 | dParamFMax, \ | ||
317 | dParamFudgeFactor, \ | ||
318 | dParamBounce, \ | ||
319 | dParamCFM, \ | ||
320 | dParamStopERP, \ | ||
321 | dParamStopCFM, \ | ||
322 | /* parameters for suspension */ \ | ||
323 | dParamSuspensionERP, \ | ||
324 | dParamSuspensionCFM, \ | ||
325 | dParamERP, \ | ||
326 | |||
327 | #define D_ALL_PARAM_NAMES_X(start,x) \ | ||
328 | /* parameters for limits and motors */ \ | ||
329 | dParamLoStop ## x = start, \ | ||
330 | dParamHiStop ## x, \ | ||
331 | dParamVel ## x, \ | ||
332 | dParamFMax ## x, \ | ||
333 | dParamFudgeFactor ## x, \ | ||
334 | dParamBounce ## x, \ | ||
335 | dParamCFM ## x, \ | ||
336 | dParamStopERP ## x, \ | ||
337 | dParamStopCFM ## x, \ | ||
338 | /* parameters for suspension */ \ | ||
339 | dParamSuspensionERP ## x, \ | ||
340 | dParamSuspensionCFM ## x, \ | ||
341 | dParamERP ## x, | ||
342 | |||
343 | enum { | ||
344 | D_ALL_PARAM_NAMES(0) | ||
345 | D_ALL_PARAM_NAMES_X(0x100,2) | ||
346 | D_ALL_PARAM_NAMES_X(0x200,3) | ||
347 | |||
348 | /* add a multiple of this constant to the basic parameter numbers to get | ||
349 | * the parameters for the second, third etc axes. | ||
350 | */ | ||
351 | dParamGroup=0x100 | ||
352 | }; | ||
353 | |||
354 | |||
355 | /* angular motor mode numbers */ | ||
356 | |||
357 | enum{ | ||
358 | dAMotorUser = 0, | ||
359 | dAMotorEuler = 1 | ||
360 | }; | ||
361 | |||
362 | |||
363 | /* joint force feedback information */ | ||
364 | |||
365 | typedef struct dJointFeedback { | ||
366 | dVector3 f1; /* force applied to body 1 */ | ||
367 | dVector3 t1; /* torque applied to body 1 */ | ||
368 | dVector3 f2; /* force applied to body 2 */ | ||
369 | dVector3 t2; /* torque applied to body 2 */ | ||
370 | } dJointFeedback; | ||
371 | |||
372 | |||
373 | /* private functions that must be implemented by the collision library: | ||
374 | * (1) indicate that a geom has moved, (2) get the next geom in a body list. | ||
375 | * these functions are called whenever the position of geoms connected to a | ||
376 | * body have changed, e.g. with dBodySetPosition(), dBodySetRotation(), or | ||
377 | * when the ODE step function updates the body state. | ||
378 | */ | ||
379 | |||
380 | void dGeomMoved (dGeomID); | ||
381 | dGeomID dGeomGetBodyNext (dGeomID); | ||
382 | |||
383 | |||
384 | #ifdef __cplusplus | ||
385 | } | ||
386 | #endif | ||
387 | |||
388 | #endif | ||