1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
---|
2 | /* |
---|
3 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
---|
4 | * |
---|
5 | */ |
---|
6 | #include <assert.h> |
---|
7 | #define _OPEN_SYS |
---|
8 | #include <fcntl.h> |
---|
9 | #define _XOPEN_SOURCE_EXTENDED 1 |
---|
10 | #include <sys/uio.h> |
---|
11 | #include <sys/stat.h> |
---|
12 | #include <stdlib.h> |
---|
13 | #include <stddef.h> |
---|
14 | #include <limits.h> |
---|
15 | #include <stdint.h> |
---|
16 | #include <unistd.h> |
---|
17 | #include <poll.h> |
---|
18 | #include <tcl.h> |
---|
19 | |
---|
20 | #include <RpField1D.h> |
---|
21 | #include <RpFieldRect3D.h> |
---|
22 | #include <RpFieldPrism3D.h> |
---|
23 | #include <RpOutcome.h> |
---|
24 | |
---|
25 | #include <vrmath/Vector3f.h> |
---|
26 | |
---|
27 | #include "nvconf.h" |
---|
28 | |
---|
29 | #include "nanovis.h" |
---|
30 | #include "CmdProc.h" |
---|
31 | #include "FlowCmd.h" |
---|
32 | #include "FlowTypes.h" |
---|
33 | #include "FlowBox.h" |
---|
34 | #include "FlowParticles.h" |
---|
35 | #include "Switch.h" |
---|
36 | #include "TransferFunction.h" |
---|
37 | #include "NvLIC.h" |
---|
38 | #include "Trace.h" |
---|
39 | #include "Unirect.h" |
---|
40 | #include "VelocityArrowsSlice.h" |
---|
41 | #include "Volume.h" |
---|
42 | |
---|
43 | using namespace vrmath; |
---|
44 | |
---|
45 | static Rappture::SwitchParseProc AxisSwitchProc; |
---|
46 | static Rappture::SwitchCustom axisSwitch = { |
---|
47 | AxisSwitchProc, NULL, 0, |
---|
48 | }; |
---|
49 | |
---|
50 | static Rappture::SwitchParseProc ColorSwitchProc; |
---|
51 | static Rappture::SwitchCustom colorSwitch = { |
---|
52 | ColorSwitchProc, NULL, 0, |
---|
53 | }; |
---|
54 | |
---|
55 | static Rappture::SwitchParseProc PointSwitchProc; |
---|
56 | static Rappture::SwitchCustom pointSwitch = { |
---|
57 | PointSwitchProc, NULL, 0, |
---|
58 | }; |
---|
59 | |
---|
60 | static Rappture::SwitchParseProc PositionSwitchProc; |
---|
61 | static Rappture::SwitchCustom positionSwitch = { |
---|
62 | PositionSwitchProc, NULL, 0, |
---|
63 | }; |
---|
64 | |
---|
65 | static Rappture::SwitchParseProc TransferFunctionSwitchProc; |
---|
66 | static Rappture::SwitchCustom transferFunctionSwitch = { |
---|
67 | TransferFunctionSwitchProc, NULL, 0, |
---|
68 | }; |
---|
69 | |
---|
70 | Rappture::SwitchSpec FlowCmd::_switches[] = { |
---|
71 | {Rappture::SWITCH_FLOAT, "-ambient", "value", |
---|
72 | offsetof(FlowValues, ambient), 0}, |
---|
73 | {Rappture::SWITCH_BOOLEAN, "-arrows", "boolean", |
---|
74 | offsetof(FlowValues, showArrows), 0}, |
---|
75 | {Rappture::SWITCH_CUSTOM, "-axis", "axis", |
---|
76 | offsetof(FlowValues, slicePos.axis), 0, 0, &axisSwitch}, |
---|
77 | {Rappture::SWITCH_FLOAT, "-diffuse", "value", |
---|
78 | offsetof(FlowValues, diffuse), 0}, |
---|
79 | {Rappture::SWITCH_BOOLEAN, "-hide", "boolean", |
---|
80 | offsetof(FlowValues, isHidden), 0}, |
---|
81 | {Rappture::SWITCH_BOOLEAN, "-light2side", "boolean", |
---|
82 | offsetof(FlowValues, twoSidedLighting), 0}, |
---|
83 | {Rappture::SWITCH_FLOAT, "-opacity", "value", |
---|
84 | offsetof(FlowValues, opacity), 0}, |
---|
85 | {Rappture::SWITCH_BOOLEAN, "-outline", "boolean", |
---|
86 | offsetof(FlowValues, showOutline), 0}, |
---|
87 | {Rappture::SWITCH_CUSTOM, "-position", "number", |
---|
88 | offsetof(FlowValues, slicePos), 0, 0, &positionSwitch}, |
---|
89 | {Rappture::SWITCH_BOOLEAN, "-slice", "boolean", |
---|
90 | offsetof(FlowValues, sliceVisible), 0}, |
---|
91 | {Rappture::SWITCH_FLOAT, "-specularExp", "value", |
---|
92 | offsetof(FlowValues, specularExp), 0}, |
---|
93 | {Rappture::SWITCH_FLOAT, "-specularLevel", "value", |
---|
94 | offsetof(FlowValues, specular), 0}, |
---|
95 | {Rappture::SWITCH_CUSTOM, "-transferfunction", "name", |
---|
96 | offsetof(FlowValues, transferFunction), 0, 0, &transferFunctionSwitch}, |
---|
97 | {Rappture::SWITCH_BOOLEAN, "-volume", "boolean", |
---|
98 | offsetof(FlowValues, showVolume), 0}, |
---|
99 | {Rappture::SWITCH_END} |
---|
100 | }; |
---|
101 | |
---|
102 | Rappture::SwitchSpec FlowParticles::_switches[] = { |
---|
103 | {Rappture::SWITCH_CUSTOM, "-axis", "string", |
---|
104 | offsetof(FlowParticlesValues, position.axis), 0, 0, &axisSwitch}, |
---|
105 | {Rappture::SWITCH_CUSTOM, "-color", "{r g b a}", |
---|
106 | offsetof(FlowParticlesValues, color), 0, 0, &colorSwitch}, |
---|
107 | {Rappture::SWITCH_BOOLEAN, "-hide", "boolean", |
---|
108 | offsetof(FlowParticlesValues, isHidden), 0}, |
---|
109 | {Rappture::SWITCH_CUSTOM, "-position", "number", |
---|
110 | offsetof(FlowParticlesValues, position), 0, 0, &positionSwitch}, |
---|
111 | {Rappture::SWITCH_FLOAT, "-size", "float", |
---|
112 | offsetof(FlowParticlesValues, particleSize), 0}, |
---|
113 | {Rappture::SWITCH_END} |
---|
114 | }; |
---|
115 | |
---|
116 | Rappture::SwitchSpec FlowBox::_switches[] = { |
---|
117 | {Rappture::SWITCH_CUSTOM, "-color", "{r g b a}", |
---|
118 | offsetof(FlowBoxValues, color), 0, 0, &colorSwitch}, |
---|
119 | {Rappture::SWITCH_CUSTOM, "-corner1", "{x y z}", |
---|
120 | offsetof(FlowBoxValues, corner1), 0, 0, &pointSwitch}, |
---|
121 | {Rappture::SWITCH_CUSTOM, "-corner2", "{x y z}", |
---|
122 | offsetof(FlowBoxValues, corner2), 0, 0, &pointSwitch}, |
---|
123 | {Rappture::SWITCH_BOOLEAN, "-hide", "boolean", |
---|
124 | offsetof(FlowBoxValues, isHidden), 0}, |
---|
125 | {Rappture::SWITCH_FLOAT, "-linewidth", "number", |
---|
126 | offsetof(FlowBoxValues, lineWidth), 0}, |
---|
127 | {Rappture::SWITCH_END} |
---|
128 | }; |
---|
129 | |
---|
130 | static Tcl_ObjCmdProc FlowInstObjCmd; |
---|
131 | static Tcl_CmdDeleteProc FlowInstDeleteProc; |
---|
132 | |
---|
133 | FlowCmd::FlowCmd(Tcl_Interp *interp, const char *name) : |
---|
134 | _interp(interp), |
---|
135 | _name(name), |
---|
136 | _data(NULL), |
---|
137 | _volume(NULL), |
---|
138 | _field(NULL) |
---|
139 | { |
---|
140 | memset(&_sv, 0, sizeof(FlowValues)); |
---|
141 | _sv.sliceVisible = 1; |
---|
142 | _sv.transferFunction = NanoVis::getTransferFunction("default"); |
---|
143 | |
---|
144 | _cmdToken = Tcl_CreateObjCommand(_interp, (char *)name, |
---|
145 | (Tcl_ObjCmdProc *)FlowInstObjCmd, |
---|
146 | this, FlowInstDeleteProc); |
---|
147 | } |
---|
148 | |
---|
149 | FlowCmd::~FlowCmd() |
---|
150 | { |
---|
151 | TRACE("Enter"); |
---|
152 | |
---|
153 | Rappture::FreeSwitches(_switches, &_sv, 0); |
---|
154 | if (_field != NULL) { |
---|
155 | delete _field; |
---|
156 | } |
---|
157 | if (_data != NULL) { |
---|
158 | delete _data; |
---|
159 | } |
---|
160 | if (_volume != NULL) { |
---|
161 | NanoVis::removeVolume(_volume); |
---|
162 | _volume = NULL; |
---|
163 | } |
---|
164 | for (BoxHashmap::iterator itr = _boxTable.begin(); |
---|
165 | itr != _boxTable.end(); ++itr) { |
---|
166 | delete itr->second; |
---|
167 | } |
---|
168 | _boxTable.clear(); |
---|
169 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
---|
170 | itr != _particlesTable.end(); ++itr) { |
---|
171 | delete itr->second; |
---|
172 | } |
---|
173 | _particlesTable.clear(); |
---|
174 | } |
---|
175 | |
---|
176 | void |
---|
177 | FlowCmd::getBounds(Vector3f& min, |
---|
178 | Vector3f& max, |
---|
179 | bool onlyVisible) |
---|
180 | { |
---|
181 | TRACE("Enter"); |
---|
182 | |
---|
183 | if (onlyVisible && !visible()) |
---|
184 | return; |
---|
185 | |
---|
186 | #if 0 // Using volume bounds instead of these |
---|
187 | if (isDataLoaded()) { |
---|
188 | Vector3f umin, umax; |
---|
189 | Rappture::Unirect3d *unirect = data(); |
---|
190 | unirect->getWorldSpaceBounds(umin, umax); |
---|
191 | if (min.x > umin.x) { |
---|
192 | min.x = umin.x; |
---|
193 | } |
---|
194 | if (max.x < umax.x) { |
---|
195 | max.x = umax.x; |
---|
196 | } |
---|
197 | if (min.y > umin.y) { |
---|
198 | min.y = umin.y; |
---|
199 | } |
---|
200 | if (max.y < umax.y) { |
---|
201 | max.y = umax.y; |
---|
202 | } |
---|
203 | if (min.z > umin.z) { |
---|
204 | min.z = umin.z; |
---|
205 | } |
---|
206 | if (max.z < umax.z) { |
---|
207 | max.z = umax.z; |
---|
208 | } |
---|
209 | } |
---|
210 | #endif |
---|
211 | for (BoxHashmap::iterator itr = _boxTable.begin(); |
---|
212 | itr != _boxTable.end(); ++itr) { |
---|
213 | FlowBox *box = itr->second; |
---|
214 | if (!onlyVisible || box->visible()) { |
---|
215 | Vector3f fbmin, fbmax; |
---|
216 | box->getWorldSpaceBounds(fbmin, fbmax, |
---|
217 | getVolume()); |
---|
218 | if (min.x > fbmin.x) { |
---|
219 | min.x = fbmin.x; |
---|
220 | } |
---|
221 | if (max.x < fbmax.x) { |
---|
222 | max.x = fbmax.x; |
---|
223 | } |
---|
224 | if (min.y > fbmin.y) { |
---|
225 | min.y = fbmin.y; |
---|
226 | } |
---|
227 | if (max.y < fbmax.y) { |
---|
228 | max.y = fbmax.y; |
---|
229 | } |
---|
230 | if (min.z > fbmin.z) { |
---|
231 | min.z = fbmin.z; |
---|
232 | } |
---|
233 | if (max.z < fbmax.z) { |
---|
234 | max.z = fbmax.z; |
---|
235 | } |
---|
236 | } |
---|
237 | } |
---|
238 | } |
---|
239 | |
---|
240 | void |
---|
241 | FlowCmd::resetParticles() |
---|
242 | { |
---|
243 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
---|
244 | itr != _particlesTable.end(); ++itr) { |
---|
245 | itr->second->reset(); |
---|
246 | } |
---|
247 | } |
---|
248 | |
---|
249 | void |
---|
250 | FlowCmd::advect() |
---|
251 | { |
---|
252 | NvVectorField *fieldPtr = getVectorField(); |
---|
253 | fieldPtr->active(true); |
---|
254 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
---|
255 | itr != _particlesTable.end(); ++itr) { |
---|
256 | if (itr->second->visible()) { |
---|
257 | itr->second->advect(); |
---|
258 | } |
---|
259 | } |
---|
260 | } |
---|
261 | |
---|
262 | void |
---|
263 | FlowCmd::render() |
---|
264 | { |
---|
265 | _field->active(true); |
---|
266 | _field->render(); |
---|
267 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
---|
268 | itr != _particlesTable.end(); ++itr) { |
---|
269 | if (itr->second->visible()) { |
---|
270 | itr->second->render(); |
---|
271 | } |
---|
272 | } |
---|
273 | renderBoxes(); |
---|
274 | } |
---|
275 | |
---|
276 | FlowParticles * |
---|
277 | FlowCmd::createParticles(const char *particlesName) |
---|
278 | { |
---|
279 | ParticlesHashmap::iterator itr = _particlesTable.find(particlesName); |
---|
280 | if (itr != _particlesTable.end()) { |
---|
281 | TRACE("Deleting existing particle injection plane '%s'", particlesName); |
---|
282 | delete itr->second; |
---|
283 | _particlesTable.erase(itr); |
---|
284 | } |
---|
285 | FlowParticles *particles = new FlowParticles(particlesName); |
---|
286 | _particlesTable[particlesName] = particles; |
---|
287 | return particles; |
---|
288 | } |
---|
289 | |
---|
290 | FlowParticles * |
---|
291 | FlowCmd::getParticles(const char *particlesName) |
---|
292 | { |
---|
293 | ParticlesHashmap::iterator itr; |
---|
294 | itr = _particlesTable.find(particlesName); |
---|
295 | if (itr == _particlesTable.end()) { |
---|
296 | TRACE("Can't find particle injection plane '%s' in '%s'", particlesName, name()); |
---|
297 | return NULL; |
---|
298 | } |
---|
299 | return itr->second; |
---|
300 | } |
---|
301 | |
---|
302 | void |
---|
303 | FlowCmd::deleteParticles(const char *particlesName) |
---|
304 | { |
---|
305 | ParticlesHashmap::iterator itr = _particlesTable.find(particlesName); |
---|
306 | if (itr == _particlesTable.end()) { |
---|
307 | TRACE("Can't find particle injection plane '%s' in '%s'", particlesName, name()); |
---|
308 | return; |
---|
309 | } |
---|
310 | delete itr->second; |
---|
311 | _particlesTable.erase(itr); |
---|
312 | } |
---|
313 | |
---|
314 | void |
---|
315 | FlowCmd::getParticlesNames(std::vector<std::string>& names) |
---|
316 | { |
---|
317 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
---|
318 | itr != _particlesTable.end(); ++itr) { |
---|
319 | names.push_back(std::string(itr->second->name())); |
---|
320 | } |
---|
321 | } |
---|
322 | |
---|
323 | FlowBox * |
---|
324 | FlowCmd::createBox(const char *boxName) |
---|
325 | { |
---|
326 | BoxHashmap::iterator itr = _boxTable.find(boxName); |
---|
327 | if (itr != _boxTable.end()) { |
---|
328 | TRACE("Deleting existing box '%s'", boxName); |
---|
329 | delete itr->second; |
---|
330 | _boxTable.erase(itr); |
---|
331 | } |
---|
332 | FlowBox *box = new FlowBox(boxName); |
---|
333 | _boxTable[boxName] = box; |
---|
334 | return box; |
---|
335 | } |
---|
336 | |
---|
337 | FlowBox * |
---|
338 | FlowCmd::getBox(const char *boxName) |
---|
339 | { |
---|
340 | BoxHashmap::iterator itr = _boxTable.find(boxName); |
---|
341 | if (itr == _boxTable.end()) { |
---|
342 | TRACE("Can't find box '%s' in '%s'", boxName, name()); |
---|
343 | return NULL; |
---|
344 | } |
---|
345 | return itr->second; |
---|
346 | } |
---|
347 | |
---|
348 | void |
---|
349 | FlowCmd::deleteBox(const char *boxName) |
---|
350 | { |
---|
351 | BoxHashmap::iterator itr = _boxTable.find(boxName); |
---|
352 | if (itr == _boxTable.end()) { |
---|
353 | TRACE("Can't find box '%s' in '%s'", boxName, name()); |
---|
354 | return; |
---|
355 | } |
---|
356 | delete itr->second; |
---|
357 | _boxTable.erase(itr); |
---|
358 | } |
---|
359 | |
---|
360 | void FlowCmd::getBoxNames(std::vector<std::string>& names) |
---|
361 | { |
---|
362 | for (BoxHashmap::iterator itr = _boxTable.begin(); |
---|
363 | itr != _boxTable.end(); ++itr) { |
---|
364 | names.push_back(std::string(itr->second->name())); |
---|
365 | } |
---|
366 | } |
---|
367 | |
---|
368 | void |
---|
369 | FlowCmd::initializeParticles() |
---|
370 | { |
---|
371 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
---|
372 | itr != _particlesTable.end(); ++itr) { |
---|
373 | itr->second->initialize(); |
---|
374 | } |
---|
375 | } |
---|
376 | |
---|
377 | bool |
---|
378 | FlowCmd::scaleVectorField() |
---|
379 | { |
---|
380 | if (_volume != NULL) { |
---|
381 | TRACE("Removing existing volume: %s", _volume->name()); |
---|
382 | NanoVis::removeVolume(_volume); |
---|
383 | _volume = NULL; |
---|
384 | } |
---|
385 | float *vdata = getScaledVector(); |
---|
386 | if (vdata == NULL) { |
---|
387 | return false; |
---|
388 | } |
---|
389 | Volume *volume = makeVolume(vdata); |
---|
390 | delete [] vdata; |
---|
391 | if (volume == NULL) { |
---|
392 | return false; |
---|
393 | } |
---|
394 | _volume = volume; |
---|
395 | |
---|
396 | // Remove the associated vector field. |
---|
397 | if (_field != NULL) { |
---|
398 | delete _field; |
---|
399 | } |
---|
400 | _field = new NvVectorField(); |
---|
401 | if (_field == NULL) { |
---|
402 | return false; |
---|
403 | } |
---|
404 | |
---|
405 | Vector3f scale = volume->getPhysicalScaling(); |
---|
406 | Vector3f location = _volume->location(); |
---|
407 | |
---|
408 | _field->setVectorField(_volume, |
---|
409 | location, |
---|
410 | scale.x, |
---|
411 | scale.y, |
---|
412 | scale.z, |
---|
413 | NanoVis::magMax); |
---|
414 | |
---|
415 | if (NanoVis::licRenderer != NULL) { |
---|
416 | NanoVis::licRenderer-> |
---|
417 | setVectorField(_volume->textureID(), |
---|
418 | location, |
---|
419 | scale.x, |
---|
420 | scale.y, |
---|
421 | scale.z, |
---|
422 | _volume->wAxis.max()); |
---|
423 | setCurrentPosition(); |
---|
424 | setAxis(); |
---|
425 | setActive(); |
---|
426 | } |
---|
427 | |
---|
428 | if (NanoVis::velocityArrowsSlice != NULL) { |
---|
429 | NanoVis::velocityArrowsSlice-> |
---|
430 | setVectorField(_volume->textureID(), |
---|
431 | location, |
---|
432 | scale.x, |
---|
433 | scale.y, |
---|
434 | scale.z, |
---|
435 | _volume->wAxis.max()); |
---|
436 | NanoVis::velocityArrowsSlice->axis(_sv.slicePos.axis); |
---|
437 | NanoVis::velocityArrowsSlice->slicePos(_sv.slicePos.value); |
---|
438 | NanoVis::velocityArrowsSlice->enabled(_sv.showArrows); |
---|
439 | } |
---|
440 | |
---|
441 | for (ParticlesHashmap::iterator itr = _particlesTable.begin(); |
---|
442 | itr != _particlesTable.end(); ++itr) { |
---|
443 | itr->second->setVectorField(_volume, |
---|
444 | location, |
---|
445 | scale.x, |
---|
446 | scale.y, |
---|
447 | scale.z, |
---|
448 | _volume->wAxis.max()); |
---|
449 | } |
---|
450 | return true; |
---|
451 | } |
---|
452 | |
---|
453 | void |
---|
454 | FlowCmd::renderBoxes() |
---|
455 | { |
---|
456 | for (BoxHashmap::iterator itr = _boxTable.begin(); |
---|
457 | itr != _boxTable.end(); ++itr) { |
---|
458 | if (itr->second->visible()) { |
---|
459 | itr->second->render(_volume); |
---|
460 | } |
---|
461 | } |
---|
462 | } |
---|
463 | |
---|
464 | float * |
---|
465 | FlowCmd::getScaledVector() |
---|
466 | { |
---|
467 | assert(_data->nComponents() == 3); |
---|
468 | size_t n = _data->nValues() / _data->nComponents() * 4; |
---|
469 | float *data = new float[n]; |
---|
470 | if (data == NULL) { |
---|
471 | return NULL; |
---|
472 | } |
---|
473 | memset(data, 0, sizeof(float) * n); |
---|
474 | float *destPtr = data; |
---|
475 | const float *values = _data->values(); |
---|
476 | for (size_t iz = 0; iz < _data->zNum(); iz++) { |
---|
477 | for (size_t iy = 0; iy < _data->yNum(); iy++) { |
---|
478 | for (size_t ix = 0; ix < _data->xNum(); ix++) { |
---|
479 | double vx, vy, vz, vm; |
---|
480 | vx = values[0]; |
---|
481 | vy = values[1]; |
---|
482 | vz = values[2]; |
---|
483 | vm = sqrt(vx*vx + vy*vy + vz*vz); |
---|
484 | destPtr[0] = vm / NanoVis::magMax; |
---|
485 | destPtr[1] = vx /(2.0*NanoVis::magMax) + 0.5; |
---|
486 | destPtr[2] = vy /(2.0*NanoVis::magMax) + 0.5; |
---|
487 | destPtr[3] = vz /(2.0*NanoVis::magMax) + 0.5; |
---|
488 | values += 3; |
---|
489 | destPtr += 4; |
---|
490 | } |
---|
491 | } |
---|
492 | } |
---|
493 | return data; |
---|
494 | } |
---|
495 | |
---|
496 | Volume * |
---|
497 | FlowCmd::makeVolume(float *data) |
---|
498 | { |
---|
499 | Volume *volume = |
---|
500 | NanoVis::loadVolume(_name.c_str(), |
---|
501 | _data->xNum(), |
---|
502 | _data->yNum(), |
---|
503 | _data->zNum(), |
---|
504 | 4, data, |
---|
505 | NanoVis::magMin, NanoVis::magMax, 0); |
---|
506 | volume->xAxis.setRange(_data->xMin(), _data->xMax()); |
---|
507 | volume->yAxis.setRange(_data->yMin(), _data->yMax()); |
---|
508 | volume->zAxis.setRange(_data->zMin(), _data->zMax()); |
---|
509 | |
---|
510 | TRACE("min=%g %g %g max=%g %g %g mag=%g %g", |
---|
511 | NanoVis::xMin, NanoVis::yMin, NanoVis::zMin, |
---|
512 | NanoVis::xMax, NanoVis::yMax, NanoVis::zMax, |
---|
513 | NanoVis::magMin, NanoVis::magMax); |
---|
514 | |
---|
515 | volume->disableCutplane(0); |
---|
516 | volume->disableCutplane(1); |
---|
517 | volume->disableCutplane(2); |
---|
518 | |
---|
519 | /* Initialize the volume with the previously configured values. */ |
---|
520 | volume->transferFunction(_sv.transferFunction); |
---|
521 | volume->dataEnabled(_sv.showVolume); |
---|
522 | volume->twoSidedLighting(_sv.twoSidedLighting); |
---|
523 | volume->outline(_sv.showOutline); |
---|
524 | volume->opacityScale(_sv.opacity); |
---|
525 | volume->ambient(_sv.ambient); |
---|
526 | volume->diffuse(_sv.diffuse); |
---|
527 | volume->specularLevel(_sv.specular); |
---|
528 | volume->specularExponent(_sv.specularExp); |
---|
529 | volume->visible(_sv.showVolume); |
---|
530 | |
---|
531 | Vector3f volScaling = volume->getPhysicalScaling(); |
---|
532 | Vector3f loc(volScaling); |
---|
533 | loc *= -0.5; |
---|
534 | volume->location(loc); |
---|
535 | |
---|
536 | Volume::updatePending = true; |
---|
537 | return volume; |
---|
538 | } |
---|
539 | |
---|
540 | static int |
---|
541 | FlowDataFileOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
542 | Tcl_Obj *const *objv) |
---|
543 | { |
---|
544 | Rappture::Outcome result; |
---|
545 | |
---|
546 | const char *fileName; |
---|
547 | fileName = Tcl_GetString(objv[3]); |
---|
548 | TRACE("File: %s", fileName); |
---|
549 | |
---|
550 | int nComponents; |
---|
551 | if (Tcl_GetIntFromObj(interp, objv[4], &nComponents) != TCL_OK) { |
---|
552 | return TCL_ERROR; |
---|
553 | } |
---|
554 | if ((nComponents < 1) || (nComponents > 4)) { |
---|
555 | Tcl_AppendResult(interp, "bad # of components \"", |
---|
556 | Tcl_GetString(objv[4]), "\"", (char *)NULL); |
---|
557 | return TCL_ERROR; |
---|
558 | } |
---|
559 | Rappture::Buffer buf; |
---|
560 | if (!buf.load(result, fileName)) { |
---|
561 | Tcl_AppendResult(interp, "can't load data from \"", fileName, "\": ", |
---|
562 | result.remark(), (char *)NULL); |
---|
563 | return TCL_ERROR; |
---|
564 | } |
---|
565 | |
---|
566 | Rappture::Unirect3d *dataPtr; |
---|
567 | dataPtr = new Rappture::Unirect3d(nComponents); |
---|
568 | FlowCmd *flowPtr = (FlowCmd *)clientData; |
---|
569 | size_t length = buf.size(); |
---|
570 | char *bytes = (char *)buf.bytes(); |
---|
571 | if ((length > 4) && (strncmp(bytes, "<DX>", 4) == 0)) { |
---|
572 | if (!dataPtr->importDx(result, nComponents, length-4, bytes+4)) { |
---|
573 | Tcl_AppendResult(interp, result.remark(), (char *)NULL); |
---|
574 | delete dataPtr; |
---|
575 | return TCL_ERROR; |
---|
576 | } |
---|
577 | } else if ((length > 10) && (strncmp(bytes, "unirect3d ", 10) == 0)) { |
---|
578 | if (dataPtr->parseBuffer(interp, buf) != TCL_OK) { |
---|
579 | delete dataPtr; |
---|
580 | return TCL_ERROR; |
---|
581 | } |
---|
582 | } else if ((length > 10) && (strncmp(bytes, "unirect2d ", 10) == 0)) { |
---|
583 | Rappture::Unirect2d *u2dPtr; |
---|
584 | u2dPtr = new Rappture::Unirect2d(nComponents); |
---|
585 | if (u2dPtr->parseBuffer(interp, buf) != TCL_OK) { |
---|
586 | delete u2dPtr; |
---|
587 | return TCL_ERROR; |
---|
588 | } |
---|
589 | dataPtr->convert(u2dPtr); |
---|
590 | delete u2dPtr; |
---|
591 | } else { |
---|
592 | TRACE("header is %.14s", buf.bytes()); |
---|
593 | if (!dataPtr->importDx(result, nComponents, length, bytes)) { |
---|
594 | Tcl_AppendResult(interp, result.remark(), (char *)NULL); |
---|
595 | delete dataPtr; |
---|
596 | return TCL_ERROR; |
---|
597 | } |
---|
598 | } |
---|
599 | if (dataPtr->nValues() == 0) { |
---|
600 | delete dataPtr; |
---|
601 | Tcl_AppendResult(interp, "no data found in \"", fileName, "\"", |
---|
602 | (char *)NULL); |
---|
603 | return TCL_ERROR; |
---|
604 | } |
---|
605 | flowPtr->data(dataPtr); |
---|
606 | NanoVis::eventuallyRedraw(NanoVis::MAP_FLOWS); |
---|
607 | return TCL_OK; |
---|
608 | } |
---|
609 | |
---|
610 | /** |
---|
611 | * $flow data follows nbytes nComponents |
---|
612 | */ |
---|
613 | static int |
---|
614 | FlowDataFollowsOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
615 | Tcl_Obj *const *objv) |
---|
616 | { |
---|
617 | Rappture::Outcome result; |
---|
618 | |
---|
619 | TRACE("Enter"); |
---|
620 | |
---|
621 | int nBytes; |
---|
622 | if (Tcl_GetIntFromObj(interp, objv[3], &nBytes) != TCL_OK) { |
---|
623 | ERROR("Bad nBytes \"%s\"", Tcl_GetString(objv[3])); |
---|
624 | return TCL_ERROR; |
---|
625 | } |
---|
626 | if (nBytes <= 0) { |
---|
627 | Tcl_AppendResult(interp, "bad # bytes request \"", |
---|
628 | Tcl_GetString(objv[3]), "\" for \"data follows\"", (char *)NULL); |
---|
629 | ERROR("Bad nbytes %d", nBytes); |
---|
630 | return TCL_ERROR; |
---|
631 | } |
---|
632 | int nComponents; |
---|
633 | if (Tcl_GetIntFromObj(interp, objv[4], &nComponents) != TCL_OK) { |
---|
634 | ERROR("Bad # of components \"%s\"", Tcl_GetString(objv[4])); |
---|
635 | return TCL_ERROR; |
---|
636 | } |
---|
637 | if (nComponents <= 0) { |
---|
638 | Tcl_AppendResult(interp, "bad # of components request \"", |
---|
639 | Tcl_GetString(objv[4]), "\" for \"data follows\"", (char *)NULL); |
---|
640 | ERROR("Bad # of components %d", nComponents); |
---|
641 | return TCL_ERROR; |
---|
642 | } |
---|
643 | Rappture::Buffer buf; |
---|
644 | TRACE("Flow data loading bytes: %d components: %d", nBytes, nComponents); |
---|
645 | if (GetDataStream(interp, buf, nBytes) != TCL_OK) { |
---|
646 | return TCL_ERROR; |
---|
647 | } |
---|
648 | Rappture::Unirect3d *dataPtr; |
---|
649 | dataPtr = new Rappture::Unirect3d(nComponents); |
---|
650 | |
---|
651 | FlowCmd *flowPtr = (FlowCmd *)clientData; |
---|
652 | size_t length = buf.size(); |
---|
653 | char *bytes = (char *)buf.bytes(); |
---|
654 | if ((length > 4) && (strncmp(bytes, "<DX>", 4) == 0)) { |
---|
655 | if (!dataPtr->importDx(result, nComponents, length - 4, bytes + 4)) { |
---|
656 | Tcl_AppendResult(interp, result.remark(), (char *)NULL); |
---|
657 | delete dataPtr; |
---|
658 | return TCL_ERROR; |
---|
659 | } |
---|
660 | } else if ((length > 10) && (strncmp(bytes, "unirect3d ", 10) == 0)) { |
---|
661 | if (dataPtr->parseBuffer(interp, buf) != TCL_OK) { |
---|
662 | delete dataPtr; |
---|
663 | return TCL_ERROR; |
---|
664 | } |
---|
665 | } else if ((length > 10) && (strncmp(bytes, "unirect2d ", 10) == 0)) { |
---|
666 | Rappture::Unirect2d *u2dPtr; |
---|
667 | u2dPtr = new Rappture::Unirect2d(nComponents); |
---|
668 | if (u2dPtr->parseBuffer(interp, buf) != TCL_OK) { |
---|
669 | delete u2dPtr; |
---|
670 | return TCL_ERROR; |
---|
671 | } |
---|
672 | dataPtr->convert(u2dPtr); |
---|
673 | delete u2dPtr; |
---|
674 | } else { |
---|
675 | TRACE("header is %.14s", buf.bytes()); |
---|
676 | if (!dataPtr->importDx(result, nComponents, length, bytes)) { |
---|
677 | Tcl_AppendResult(interp, result.remark(), (char *)NULL); |
---|
678 | delete dataPtr; |
---|
679 | return TCL_ERROR; |
---|
680 | } |
---|
681 | } |
---|
682 | if (dataPtr->nValues() == 0) { |
---|
683 | delete dataPtr; |
---|
684 | Tcl_AppendResult(interp, "no data found in stream", (char *)NULL); |
---|
685 | return TCL_ERROR; |
---|
686 | } |
---|
687 | TRACE("nx = %d ny = %d nz = %d", |
---|
688 | dataPtr->xNum(), dataPtr->yNum(), dataPtr->zNum()); |
---|
689 | TRACE("x0 = %lg y0 = %lg z0 = %lg", |
---|
690 | dataPtr->xMin(), dataPtr->yMin(), dataPtr->zMin()); |
---|
691 | TRACE("lx = %lg ly = %lg lz = %lg", |
---|
692 | dataPtr->xMax() - dataPtr->xMin(), |
---|
693 | dataPtr->yMax() - dataPtr->yMin(), |
---|
694 | dataPtr->zMax() - dataPtr->zMin()); |
---|
695 | TRACE("dx = %lg dy = %lg dz = %lg", |
---|
696 | dataPtr->xNum() > 1 ? (dataPtr->xMax() - dataPtr->xMin())/(dataPtr->xNum()-1) : 0, |
---|
697 | dataPtr->yNum() > 1 ? (dataPtr->yMax() - dataPtr->yMin())/(dataPtr->yNum()-1) : 0, |
---|
698 | dataPtr->zNum() > 1 ? (dataPtr->zMax() - dataPtr->zMin())/(dataPtr->zNum()-1) : 0); |
---|
699 | TRACE("magMin = %lg magMax = %lg", |
---|
700 | dataPtr->magMin(), dataPtr->magMax()); |
---|
701 | flowPtr->data(dataPtr); |
---|
702 | { |
---|
703 | char info[1024]; |
---|
704 | ssize_t nWritten; |
---|
705 | size_t length; |
---|
706 | |
---|
707 | length = sprintf(info, "nv>data tag %s min %g max %g\n", |
---|
708 | flowPtr->name(), dataPtr->magMin(), dataPtr->magMax()); |
---|
709 | nWritten = write(1, info, length); |
---|
710 | assert(nWritten == (ssize_t)strlen(info)); |
---|
711 | } |
---|
712 | NanoVis::eventuallyRedraw(NanoVis::MAP_FLOWS); |
---|
713 | return TCL_OK; |
---|
714 | } |
---|
715 | |
---|
716 | static Rappture::CmdSpec flowDataOps[] = { |
---|
717 | {"file", 2, FlowDataFileOp, 5, 5, "fileName nComponents",}, |
---|
718 | {"follows", 2, FlowDataFollowsOp, 5, 5, "size nComponents",}, |
---|
719 | }; |
---|
720 | static int nFlowDataOps = NumCmdSpecs(flowDataOps); |
---|
721 | |
---|
722 | static int |
---|
723 | FlowDataOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
724 | Tcl_Obj *const *objv) |
---|
725 | { |
---|
726 | Tcl_ObjCmdProc *proc; |
---|
727 | |
---|
728 | proc = Rappture::GetOpFromObj(interp, nFlowDataOps, flowDataOps, |
---|
729 | Rappture::CMDSPEC_ARG2, objc, objv, 0); |
---|
730 | if (proc == NULL) { |
---|
731 | return TCL_ERROR; |
---|
732 | } |
---|
733 | return (*proc) (clientData, interp, objc, objv); |
---|
734 | } |
---|
735 | |
---|
736 | float |
---|
737 | FlowCmd::getRelativePosition(FlowPosition *posPtr) |
---|
738 | { |
---|
739 | if (posPtr->flags == RELPOS) { |
---|
740 | return posPtr->value; |
---|
741 | } |
---|
742 | switch (posPtr->axis) { |
---|
743 | case AXIS_X: |
---|
744 | return (posPtr->value - NanoVis::xMin) / |
---|
745 | (NanoVis::xMax - NanoVis::xMin); |
---|
746 | case AXIS_Y: |
---|
747 | return (posPtr->value - NanoVis::yMin) / |
---|
748 | (NanoVis::yMax - NanoVis::yMin); |
---|
749 | case AXIS_Z: |
---|
750 | return (posPtr->value - NanoVis::zMin) / |
---|
751 | (NanoVis::zMax - NanoVis::zMin); |
---|
752 | } |
---|
753 | return 0.0; |
---|
754 | } |
---|
755 | |
---|
756 | float |
---|
757 | FlowCmd::getRelativePosition() |
---|
758 | { |
---|
759 | return FlowCmd::getRelativePosition(&_sv.slicePos); |
---|
760 | } |
---|
761 | |
---|
762 | /* Static NanoVis class commands. */ |
---|
763 | |
---|
764 | FlowCmd * |
---|
765 | NanoVis::getFlow(const char *name) |
---|
766 | { |
---|
767 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
768 | if (itr == flowTable.end()) { |
---|
769 | TRACE("Can't find flow '%s'", name); |
---|
770 | return NULL; |
---|
771 | } |
---|
772 | return itr->second; |
---|
773 | } |
---|
774 | |
---|
775 | FlowCmd * |
---|
776 | NanoVis::createFlow(Tcl_Interp *interp, const char *name) |
---|
777 | { |
---|
778 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
779 | if (itr != flowTable.end()) { |
---|
780 | ERROR("Flow '%s' already exists", name); |
---|
781 | return NULL; |
---|
782 | } |
---|
783 | FlowCmd *flow = new FlowCmd(interp, name); |
---|
784 | flowTable[name] = flow; |
---|
785 | return flow; |
---|
786 | } |
---|
787 | |
---|
788 | /** |
---|
789 | * \brief Delete flow object and hash table entry |
---|
790 | * |
---|
791 | * This is called by the flow command instance delete callback |
---|
792 | */ |
---|
793 | void |
---|
794 | NanoVis::deleteFlow(const char *name) |
---|
795 | { |
---|
796 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
797 | if (itr != flowTable.end()) { |
---|
798 | delete itr->second; |
---|
799 | flowTable.erase(itr); |
---|
800 | } |
---|
801 | } |
---|
802 | |
---|
803 | /** |
---|
804 | * \brief Delete all flow object commands |
---|
805 | * |
---|
806 | * This will also delete the flow objects and hash table entries |
---|
807 | */ |
---|
808 | void |
---|
809 | NanoVis::deleteFlows(Tcl_Interp *interp) |
---|
810 | { |
---|
811 | FlowHashmap::iterator itr; |
---|
812 | for (itr = flowTable.begin(); |
---|
813 | itr != flowTable.end(); ++itr) { |
---|
814 | Tcl_DeleteCommandFromToken(interp, itr->second->getCommandToken()); |
---|
815 | } |
---|
816 | flowTable.clear(); |
---|
817 | } |
---|
818 | |
---|
819 | bool |
---|
820 | NanoVis::mapFlows() |
---|
821 | { |
---|
822 | TRACE("Enter"); |
---|
823 | |
---|
824 | flags &= ~MAP_FLOWS; |
---|
825 | |
---|
826 | /* |
---|
827 | * Step 1. Get the overall min and max magnitudes of all the |
---|
828 | * flow vectors. |
---|
829 | */ |
---|
830 | magMin = DBL_MAX, magMax = -DBL_MAX; |
---|
831 | |
---|
832 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
833 | itr != flowTable.end(); ++itr) { |
---|
834 | FlowCmd *flow = itr->second; |
---|
835 | double min, max; |
---|
836 | if (!flow->isDataLoaded()) { |
---|
837 | continue; |
---|
838 | } |
---|
839 | Rappture::Unirect3d *data = flow->data(); |
---|
840 | min = data->magMin(); |
---|
841 | max = data->magMax(); |
---|
842 | if (min < magMin) { |
---|
843 | magMin = min; |
---|
844 | } |
---|
845 | if (max > magMax) { |
---|
846 | magMax = max; |
---|
847 | } |
---|
848 | if (data->xMin() < xMin) { |
---|
849 | xMin = data->xMin(); |
---|
850 | } |
---|
851 | if (data->yMin() < yMin) { |
---|
852 | yMin = data->yMin(); |
---|
853 | } |
---|
854 | if (data->zMin() < zMin) { |
---|
855 | zMin = data->zMin(); |
---|
856 | } |
---|
857 | if (data->xMax() > xMax) { |
---|
858 | xMax = data->xMax(); |
---|
859 | } |
---|
860 | if (data->yMax() > yMax) { |
---|
861 | yMax = data->yMax(); |
---|
862 | } |
---|
863 | if (data->zMax() > zMax) { |
---|
864 | zMax = data->zMax(); |
---|
865 | } |
---|
866 | } |
---|
867 | |
---|
868 | TRACE("magMin=%g magMax=%g", NanoVis::magMin, NanoVis::magMax); |
---|
869 | |
---|
870 | /* |
---|
871 | * Step 2. Generate the vector field from each data set. |
---|
872 | */ |
---|
873 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
874 | itr != flowTable.end(); ++itr) { |
---|
875 | FlowCmd *flow = itr->second; |
---|
876 | if (!flow->isDataLoaded()) { |
---|
877 | continue; // Flow exists, but no data has been loaded yet. |
---|
878 | } |
---|
879 | if (flow->visible()) { |
---|
880 | flow->initializeParticles(); |
---|
881 | } |
---|
882 | if (!flow->scaleVectorField()) { |
---|
883 | return false; |
---|
884 | } |
---|
885 | // FIXME: This doesn't work when there is more than one flow. |
---|
886 | licRenderer->setOffset(flow->getRelativePosition()); |
---|
887 | velocityArrowsSlice->slicePos(flow->getRelativePosition()); |
---|
888 | } |
---|
889 | advectFlows(); |
---|
890 | return true; |
---|
891 | } |
---|
892 | |
---|
893 | void |
---|
894 | NanoVis::getFlowBounds(Vector3f& min, |
---|
895 | Vector3f& max, |
---|
896 | bool onlyVisible) |
---|
897 | { |
---|
898 | TRACE("Enter"); |
---|
899 | |
---|
900 | min.set(FLT_MAX, FLT_MAX, FLT_MAX); |
---|
901 | max.set(-FLT_MAX, -FLT_MAX, -FLT_MAX); |
---|
902 | |
---|
903 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
904 | itr != flowTable.end(); ++itr) { |
---|
905 | itr->second->getBounds(min, max, onlyVisible); |
---|
906 | } |
---|
907 | } |
---|
908 | |
---|
909 | void |
---|
910 | NanoVis::renderFlows() |
---|
911 | { |
---|
912 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
913 | itr != flowTable.end(); ++itr) { |
---|
914 | FlowCmd *flow = itr->second; |
---|
915 | if (flow->isDataLoaded() && flow->visible()) { |
---|
916 | flow->render(); |
---|
917 | } |
---|
918 | } |
---|
919 | flags &= ~REDRAW_PENDING; |
---|
920 | } |
---|
921 | |
---|
922 | void |
---|
923 | NanoVis::resetFlows() |
---|
924 | { |
---|
925 | if (licRenderer->active()) { |
---|
926 | NanoVis::licRenderer->reset(); |
---|
927 | } |
---|
928 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
929 | itr != flowTable.end(); ++itr) { |
---|
930 | FlowCmd *flow = itr->second; |
---|
931 | if (flow->isDataLoaded() && flow->visible()) { |
---|
932 | flow->resetParticles(); |
---|
933 | } |
---|
934 | } |
---|
935 | } |
---|
936 | |
---|
937 | void |
---|
938 | NanoVis::advectFlows() |
---|
939 | { |
---|
940 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
941 | itr != flowTable.end(); ++itr) { |
---|
942 | FlowCmd *flow = itr->second; |
---|
943 | if (flow->isDataLoaded() && flow->visible()) { |
---|
944 | flow->advect(); |
---|
945 | } |
---|
946 | } |
---|
947 | } |
---|
948 | |
---|
949 | /** |
---|
950 | * \brief Convert a Tcl_Obj representing the label of a child node into its |
---|
951 | * integer node id. |
---|
952 | * |
---|
953 | * \param clientData Flag indicating if the node is considered before or |
---|
954 | * after the insertion position. |
---|
955 | * \param interp Interpreter to send results back to |
---|
956 | * \param switchName Not used |
---|
957 | * \param objPtr String representation |
---|
958 | * \param record Structure record |
---|
959 | * \param offset Not used |
---|
960 | * \param flags Not used |
---|
961 | * |
---|
962 | * \return The return value is a standard Tcl result. |
---|
963 | */ |
---|
964 | static int |
---|
965 | AxisSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
966 | const char *switchName, Tcl_Obj *objPtr, |
---|
967 | char *record, int offset, int flags) |
---|
968 | { |
---|
969 | const char *string = Tcl_GetString(objPtr); |
---|
970 | if (string[1] == '\0') { |
---|
971 | FlowCmd::SliceAxis *axisPtr = (FlowCmd::SliceAxis *)(record + offset); |
---|
972 | char c; |
---|
973 | c = tolower((unsigned char)string[0]); |
---|
974 | if (c == 'x') { |
---|
975 | *axisPtr = FlowCmd::AXIS_X; |
---|
976 | return TCL_OK; |
---|
977 | } else if (c == 'y') { |
---|
978 | *axisPtr = FlowCmd::AXIS_Y; |
---|
979 | return TCL_OK; |
---|
980 | } else if (c == 'z') { |
---|
981 | *axisPtr = FlowCmd::AXIS_Z; |
---|
982 | return TCL_OK; |
---|
983 | } |
---|
984 | /*FALLTHRU*/ |
---|
985 | } |
---|
986 | Tcl_AppendResult(interp, "bad axis \"", string, |
---|
987 | "\": should be x, y, or z", (char*)NULL); |
---|
988 | return TCL_ERROR; |
---|
989 | } |
---|
990 | |
---|
991 | /** |
---|
992 | * \brief Convert a Tcl_Obj representing the label of a list of four color |
---|
993 | * components in to a RGBA color value. |
---|
994 | * |
---|
995 | * \param clientData Flag indicating if the node is considered before or |
---|
996 | * after the insertion position. |
---|
997 | * \param interp Interpreter to send results back to |
---|
998 | * \param switchName Not used |
---|
999 | * \param objPtr String representation |
---|
1000 | * \param record Structure record |
---|
1001 | * \param offset Not used |
---|
1002 | * \param flags Not used |
---|
1003 | * |
---|
1004 | * \return The return value is a standard Tcl result. |
---|
1005 | */ |
---|
1006 | static int |
---|
1007 | ColorSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
1008 | const char *switchName, Tcl_Obj *objPtr, |
---|
1009 | char *record, int offset, int flags) |
---|
1010 | { |
---|
1011 | Tcl_Obj **objv; |
---|
1012 | int objc; |
---|
1013 | FlowColor *color = (FlowColor *)(record + offset); |
---|
1014 | |
---|
1015 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
---|
1016 | return TCL_ERROR; |
---|
1017 | } |
---|
1018 | if ((objc < 3) || (objc > 4)) { |
---|
1019 | Tcl_AppendResult(interp, "wrong # of elements in color definition", |
---|
1020 | (char *)NULL); |
---|
1021 | return TCL_ERROR; |
---|
1022 | } |
---|
1023 | float values[4]; |
---|
1024 | int i; |
---|
1025 | values[3] = 1.0f; |
---|
1026 | for (i = 0; i < objc; i++) { |
---|
1027 | float value; |
---|
1028 | |
---|
1029 | if (GetFloatFromObj(interp, objv[i], &value) != TCL_OK) { |
---|
1030 | return TCL_ERROR; |
---|
1031 | } |
---|
1032 | if ((value < 0.0) || (value > 1.0)) { |
---|
1033 | Tcl_AppendResult(interp, "bad component value in \"", |
---|
1034 | Tcl_GetString(objPtr), "\": color values must be [0..1]", |
---|
1035 | (char *)NULL); |
---|
1036 | return TCL_ERROR; |
---|
1037 | } |
---|
1038 | values[i] = value; |
---|
1039 | } |
---|
1040 | color->r = values[0]; |
---|
1041 | color->g = values[1]; |
---|
1042 | color->b = values[2]; |
---|
1043 | color->a = values[3]; |
---|
1044 | return TCL_OK; |
---|
1045 | } |
---|
1046 | |
---|
1047 | /** |
---|
1048 | * \brief Convert a Tcl_Obj representing the a 3-D coordinate into a point. |
---|
1049 | * |
---|
1050 | * \param clientData Flag indicating if the node is considered before or |
---|
1051 | * after the insertion position. |
---|
1052 | * \param interp Interpreter to send results back to |
---|
1053 | * \param switchName Not used |
---|
1054 | * \param objPtr String representation |
---|
1055 | * \param record Structure record |
---|
1056 | * \param offset Not used |
---|
1057 | * \param flags Not used |
---|
1058 | * |
---|
1059 | * \return The return value is a standard Tcl result. |
---|
1060 | */ |
---|
1061 | static int |
---|
1062 | PointSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
1063 | const char *switchName, Tcl_Obj *objPtr, |
---|
1064 | char *record, int offset, int flags) |
---|
1065 | { |
---|
1066 | FlowPoint *point = (FlowPoint *)(record + offset); |
---|
1067 | int objc; |
---|
1068 | Tcl_Obj **objv; |
---|
1069 | |
---|
1070 | if (Tcl_ListObjGetElements(interp, objPtr, &objc, &objv) != TCL_OK) { |
---|
1071 | return TCL_ERROR; |
---|
1072 | } |
---|
1073 | if (objc != 3) { |
---|
1074 | Tcl_AppendResult(interp, "wrong # of elements for box coordinates: " |
---|
1075 | " should be \"x y z\"", (char *)NULL); |
---|
1076 | return TCL_ERROR; |
---|
1077 | } |
---|
1078 | float values[3]; |
---|
1079 | int i; |
---|
1080 | for (i = 0; i < objc; i++) { |
---|
1081 | float value; |
---|
1082 | |
---|
1083 | if (GetFloatFromObj(interp, objv[i], &value) != TCL_OK) { |
---|
1084 | return TCL_ERROR; |
---|
1085 | } |
---|
1086 | values[i] = value; |
---|
1087 | } |
---|
1088 | point->x = values[0]; |
---|
1089 | point->y = values[1]; |
---|
1090 | point->z = values[2]; |
---|
1091 | return TCL_OK; |
---|
1092 | } |
---|
1093 | |
---|
1094 | /** |
---|
1095 | * \brief Convert a Tcl_Obj representing the a 3-D coordinate into a point. |
---|
1096 | * |
---|
1097 | * \param clientData Flag indicating if the node is considered before or |
---|
1098 | * after the insertion position. |
---|
1099 | * \param interp Interpreter to send results back to |
---|
1100 | * \param switchName Not used |
---|
1101 | * \param objPtr String representation |
---|
1102 | * \param record Structure record |
---|
1103 | * \param offset Not used |
---|
1104 | * \param flags Not used |
---|
1105 | * |
---|
1106 | * \return The return value is a standard Tcl result. |
---|
1107 | */ |
---|
1108 | static int |
---|
1109 | PositionSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
1110 | const char *switchName, Tcl_Obj *objPtr, |
---|
1111 | char *record, int offset, int flags) |
---|
1112 | { |
---|
1113 | FlowPosition *posPtr = (FlowPosition *)(record + offset); |
---|
1114 | const char *string; |
---|
1115 | char *p; |
---|
1116 | |
---|
1117 | string = Tcl_GetString(objPtr); |
---|
1118 | p = strrchr((char *)string, '%'); |
---|
1119 | if (p == NULL) { |
---|
1120 | float value; |
---|
1121 | |
---|
1122 | if (GetFloatFromObj(interp, objPtr, &value) != TCL_OK) { |
---|
1123 | return TCL_ERROR; |
---|
1124 | } |
---|
1125 | posPtr->value = value; |
---|
1126 | posPtr->flags = ABSPOS; |
---|
1127 | } else { |
---|
1128 | double value; |
---|
1129 | |
---|
1130 | *p = '\0'; |
---|
1131 | if (Tcl_GetDouble(interp, string, &value) != TCL_OK) { |
---|
1132 | return TCL_ERROR; |
---|
1133 | } |
---|
1134 | posPtr->value = (float)value * 0.01; |
---|
1135 | posPtr->flags = RELPOS; |
---|
1136 | } |
---|
1137 | return TCL_OK; |
---|
1138 | } |
---|
1139 | |
---|
1140 | /** |
---|
1141 | * \brief Convert a Tcl_Obj representing the transfer function into a |
---|
1142 | * TransferFunction pointer. |
---|
1143 | * |
---|
1144 | * The transfer function must have been previously defined. |
---|
1145 | * |
---|
1146 | * \param clientData Flag indicating if the node is considered before or |
---|
1147 | * after the insertion position. |
---|
1148 | * \param interp Interpreter to send results back to |
---|
1149 | * \param switchName Not used |
---|
1150 | * \param objPtr String representation |
---|
1151 | * \param record Structure record |
---|
1152 | * \param offset Not used |
---|
1153 | * \param flags Not used |
---|
1154 | * |
---|
1155 | * \return The return value is a standard Tcl result. |
---|
1156 | */ |
---|
1157 | static int |
---|
1158 | TransferFunctionSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
1159 | const char *switchName, Tcl_Obj *objPtr, |
---|
1160 | char *record, int offset, int flags) |
---|
1161 | { |
---|
1162 | TransferFunction **funcPtrPtr = (TransferFunction **)(record + offset); |
---|
1163 | TransferFunction *tf = NanoVis::getTransferFunction(Tcl_GetString(objPtr)); |
---|
1164 | if (tf == NULL) { |
---|
1165 | Tcl_AppendResult(interp, "transfer function \"", Tcl_GetString(objPtr), |
---|
1166 | "\" is not defined", (char*)NULL); |
---|
1167 | return TCL_ERROR; |
---|
1168 | } |
---|
1169 | *funcPtrPtr = tf; |
---|
1170 | return TCL_OK; |
---|
1171 | } |
---|
1172 | |
---|
1173 | static int |
---|
1174 | FlowConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1175 | Tcl_Obj *const *objv) |
---|
1176 | { |
---|
1177 | FlowCmd *flowPtr = (FlowCmd *)clientData; |
---|
1178 | |
---|
1179 | if (flowPtr->parseSwitches(interp, objc - 2, objv + 2) != TCL_OK) { |
---|
1180 | return TCL_ERROR; |
---|
1181 | } |
---|
1182 | NanoVis::eventuallyRedraw(NanoVis::MAP_FLOWS); |
---|
1183 | return TCL_OK; |
---|
1184 | } |
---|
1185 | |
---|
1186 | static int |
---|
1187 | FlowParticlesAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1188 | Tcl_Obj *const *objv) |
---|
1189 | { |
---|
1190 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1191 | const char *particlesName = Tcl_GetString(objv[3]); |
---|
1192 | FlowParticles *particles = flow->createParticles(particlesName); |
---|
1193 | if (particles == NULL) { |
---|
1194 | Tcl_AppendResult(interp, "Flow particle injection plane \"", |
---|
1195 | particlesName, |
---|
1196 | "\" already exists or could not be created", |
---|
1197 | (char*)NULL); |
---|
1198 | return TCL_ERROR; |
---|
1199 | } |
---|
1200 | if (particles->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
1201 | flow->deleteParticles(particlesName); |
---|
1202 | return TCL_ERROR; |
---|
1203 | } |
---|
1204 | particles->configure(); |
---|
1205 | NanoVis::eventuallyRedraw(); |
---|
1206 | Tcl_SetObjResult(interp, objv[3]); |
---|
1207 | return TCL_OK; |
---|
1208 | } |
---|
1209 | |
---|
1210 | static int |
---|
1211 | FlowParticlesConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1212 | Tcl_Obj *const *objv) |
---|
1213 | { |
---|
1214 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1215 | const char *particlesName = Tcl_GetString(objv[3]); |
---|
1216 | FlowParticles *particles = flow->getParticles(particlesName); |
---|
1217 | if (particles == NULL) { |
---|
1218 | Tcl_AppendResult(interp, "Flow particle injection plane \"", |
---|
1219 | particlesName, "\" not found", |
---|
1220 | (char*)NULL); |
---|
1221 | return TCL_ERROR; |
---|
1222 | } |
---|
1223 | if (particles->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
1224 | return TCL_ERROR; |
---|
1225 | } |
---|
1226 | particles->configure(); |
---|
1227 | NanoVis::eventuallyRedraw(NanoVis::MAP_FLOWS); |
---|
1228 | return TCL_OK; |
---|
1229 | } |
---|
1230 | |
---|
1231 | static int |
---|
1232 | FlowParticlesDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1233 | Tcl_Obj *const *objv) |
---|
1234 | { |
---|
1235 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1236 | for (int i = 3; i < objc; i++) { |
---|
1237 | flow->deleteParticles(Tcl_GetString(objv[i])); |
---|
1238 | } |
---|
1239 | NanoVis::eventuallyRedraw(); |
---|
1240 | return TCL_OK; |
---|
1241 | } |
---|
1242 | |
---|
1243 | static int |
---|
1244 | FlowParticlesNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1245 | Tcl_Obj *const *objv) |
---|
1246 | { |
---|
1247 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1248 | Tcl_Obj *listObjPtr; |
---|
1249 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
1250 | std::vector<std::string> names; |
---|
1251 | flow->getParticlesNames(names); |
---|
1252 | for (std::vector<std::string>::iterator itr = names.begin(); |
---|
1253 | itr != names.end(); ++itr) { |
---|
1254 | Tcl_Obj *objPtr = Tcl_NewStringObj(itr->c_str(), -1); |
---|
1255 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
1256 | } |
---|
1257 | Tcl_SetObjResult(interp, listObjPtr); |
---|
1258 | return TCL_OK; |
---|
1259 | } |
---|
1260 | |
---|
1261 | static Rappture::CmdSpec flowParticlesOps[] = { |
---|
1262 | {"add", 1, FlowParticlesAddOp, 4, 0, "name ?switches?",}, |
---|
1263 | {"configure", 1, FlowParticlesConfigureOp, 4, 0, "name ?switches?",}, |
---|
1264 | {"delete", 1, FlowParticlesDeleteOp, 4, 0, "name ?name...?"}, |
---|
1265 | {"names", 1, FlowParticlesNamesOp, 3, 3, ""}, |
---|
1266 | }; |
---|
1267 | |
---|
1268 | static int nFlowParticlesOps = NumCmdSpecs(flowParticlesOps); |
---|
1269 | |
---|
1270 | /** |
---|
1271 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
1272 | * object. |
---|
1273 | * |
---|
1274 | * Side effects: See the user documentation. |
---|
1275 | * |
---|
1276 | * $flow particles oper $name |
---|
1277 | * |
---|
1278 | * \return A standard Tcl result. |
---|
1279 | */ |
---|
1280 | static int |
---|
1281 | FlowParticlesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1282 | Tcl_Obj *const *objv) |
---|
1283 | { |
---|
1284 | Tcl_ObjCmdProc *proc; |
---|
1285 | proc = Rappture::GetOpFromObj(interp, nFlowParticlesOps, flowParticlesOps, |
---|
1286 | Rappture::CMDSPEC_ARG2, objc, objv, 0); |
---|
1287 | if (proc == NULL) { |
---|
1288 | return TCL_ERROR; |
---|
1289 | } |
---|
1290 | FlowCmd *flowPtr = (FlowCmd *)clientData; |
---|
1291 | Tcl_Preserve(flowPtr); |
---|
1292 | int result; |
---|
1293 | result = (*proc) (clientData, interp, objc, objv); |
---|
1294 | Tcl_Release(flowPtr); |
---|
1295 | return result; |
---|
1296 | } |
---|
1297 | |
---|
1298 | static int |
---|
1299 | FlowBoxAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1300 | Tcl_Obj *const *objv) |
---|
1301 | { |
---|
1302 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1303 | const char *boxName = Tcl_GetString(objv[3]); |
---|
1304 | FlowBox *box = flow->createBox(boxName); |
---|
1305 | if (box == NULL) { |
---|
1306 | Tcl_AppendResult(interp, "Flow box \"", boxName, |
---|
1307 | "\" already exists or could not be created", |
---|
1308 | (char*)NULL); |
---|
1309 | return TCL_ERROR; |
---|
1310 | } |
---|
1311 | if (box->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
1312 | flow->deleteBox(boxName); |
---|
1313 | return TCL_ERROR; |
---|
1314 | } |
---|
1315 | NanoVis::eventuallyRedraw(); |
---|
1316 | Tcl_SetObjResult(interp, objv[3]); |
---|
1317 | return TCL_OK; |
---|
1318 | } |
---|
1319 | |
---|
1320 | static int |
---|
1321 | FlowBoxConfigureOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1322 | Tcl_Obj *const *objv) |
---|
1323 | { |
---|
1324 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1325 | const char *boxName = Tcl_GetString(objv[3]); |
---|
1326 | FlowBox *box = flow->getBox(boxName); |
---|
1327 | if (box == NULL) { |
---|
1328 | Tcl_AppendResult(interp, "Flow box \"", boxName, "\" not found", |
---|
1329 | (char*)NULL); |
---|
1330 | return TCL_ERROR; |
---|
1331 | } |
---|
1332 | if (box->parseSwitches(interp, objc - 4, objv + 4) != TCL_OK) { |
---|
1333 | return TCL_ERROR; |
---|
1334 | } |
---|
1335 | NanoVis::eventuallyRedraw(); |
---|
1336 | return TCL_OK; |
---|
1337 | } |
---|
1338 | |
---|
1339 | static int |
---|
1340 | FlowBoxDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1341 | Tcl_Obj *const *objv) |
---|
1342 | { |
---|
1343 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1344 | for (int i = 3; i < objc; i++) { |
---|
1345 | flow->deleteBox(Tcl_GetString(objv[i])); |
---|
1346 | } |
---|
1347 | NanoVis::eventuallyRedraw(); |
---|
1348 | return TCL_OK; |
---|
1349 | } |
---|
1350 | |
---|
1351 | static int |
---|
1352 | FlowBoxNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1353 | Tcl_Obj *const *objv) |
---|
1354 | { |
---|
1355 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1356 | Tcl_Obj *listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
1357 | std::vector<std::string> names; |
---|
1358 | flow->getBoxNames(names); |
---|
1359 | for (std::vector<std::string>::iterator itr = names.begin(); |
---|
1360 | itr != names.end(); ++itr) { |
---|
1361 | Tcl_Obj *objPtr = Tcl_NewStringObj(itr->c_str(), -1); |
---|
1362 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
1363 | } |
---|
1364 | Tcl_SetObjResult(interp, listObjPtr); |
---|
1365 | return TCL_OK; |
---|
1366 | } |
---|
1367 | |
---|
1368 | static Rappture::CmdSpec flowBoxOps[] = { |
---|
1369 | {"add", 1, FlowBoxAddOp, 4, 0, "name ?switches?",}, |
---|
1370 | {"configure", 1, FlowBoxConfigureOp, 4, 0, "name ?switches?",}, |
---|
1371 | {"delete", 1, FlowBoxDeleteOp, 4, 0, "name ?name...?"}, |
---|
1372 | {"names", 1, FlowBoxNamesOp, 3, 3, ""}, |
---|
1373 | }; |
---|
1374 | |
---|
1375 | static int nFlowBoxOps = NumCmdSpecs(flowBoxOps); |
---|
1376 | |
---|
1377 | /** |
---|
1378 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
1379 | * object. |
---|
1380 | * |
---|
1381 | * Side effects: See the user documentation. |
---|
1382 | * |
---|
1383 | * \return A standard Tcl result. |
---|
1384 | */ |
---|
1385 | static int |
---|
1386 | FlowBoxOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1387 | Tcl_Obj *const *objv) |
---|
1388 | { |
---|
1389 | Tcl_ObjCmdProc *proc; |
---|
1390 | proc = Rappture::GetOpFromObj(interp, nFlowBoxOps, flowBoxOps, |
---|
1391 | Rappture::CMDSPEC_ARG2, objc, objv, 0); |
---|
1392 | if (proc == NULL) { |
---|
1393 | return TCL_ERROR; |
---|
1394 | } |
---|
1395 | FlowCmd *flowPtr = (FlowCmd *)clientData; |
---|
1396 | Tcl_Preserve(flowPtr); |
---|
1397 | int result; |
---|
1398 | result = (*proc) (clientData, interp, objc, objv); |
---|
1399 | Tcl_Release(flowPtr); |
---|
1400 | return result; |
---|
1401 | } |
---|
1402 | |
---|
1403 | /* |
---|
1404 | * CLIENT COMMAND: |
---|
1405 | * $flow legend <width> <height> |
---|
1406 | * |
---|
1407 | * Clients use this to generate a legend image for the specified |
---|
1408 | * transfer function. The legend image is a color gradient from 0 |
---|
1409 | * to one, drawn in the given transfer function. The resulting image |
---|
1410 | * is returned in the size <width> x <height>. |
---|
1411 | */ |
---|
1412 | static int |
---|
1413 | FlowLegendOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1414 | Tcl_Obj *const *objv) |
---|
1415 | { |
---|
1416 | FlowCmd *flowPtr = (FlowCmd *)clientData; |
---|
1417 | |
---|
1418 | const char *string = Tcl_GetString(objv[1]); |
---|
1419 | TransferFunction *tf; |
---|
1420 | tf = flowPtr->getTransferFunction(); |
---|
1421 | if (tf == NULL) { |
---|
1422 | Tcl_AppendResult(interp, "unknown transfer function \"", string, "\"", |
---|
1423 | (char*)NULL); |
---|
1424 | return TCL_ERROR; |
---|
1425 | } |
---|
1426 | const char *label; |
---|
1427 | label = Tcl_GetString(objv[0]); |
---|
1428 | int w, h; |
---|
1429 | if ((Tcl_GetIntFromObj(interp, objv[2], &w) != TCL_OK) || |
---|
1430 | (Tcl_GetIntFromObj(interp, objv[3], &h) != TCL_OK)) { |
---|
1431 | return TCL_ERROR; |
---|
1432 | } |
---|
1433 | if (NanoVis::flags & NanoVis::MAP_FLOWS) { |
---|
1434 | NanoVis::mapFlows(); |
---|
1435 | } |
---|
1436 | NanoVis::renderLegend(tf, NanoVis::magMin, NanoVis::magMax, w, h, label); |
---|
1437 | return TCL_OK; |
---|
1438 | } |
---|
1439 | |
---|
1440 | static Rappture::CmdSpec flowInstOps[] = { |
---|
1441 | {"box", 1, FlowBoxOp, 2, 0, "oper ?args?"}, |
---|
1442 | {"configure", 1, FlowConfigureOp, 2, 0, "?switches?"}, |
---|
1443 | {"data", 1, FlowDataOp, 2, 0, "oper ?args?"}, |
---|
1444 | {"legend", 1, FlowLegendOp, 4, 4, "w h"}, |
---|
1445 | {"particles", 1, FlowParticlesOp, 2, 0, "oper ?args?"} |
---|
1446 | }; |
---|
1447 | static int nFlowInstOps = NumCmdSpecs(flowInstOps); |
---|
1448 | |
---|
1449 | /** |
---|
1450 | * \brief This procedure is invoked to process commands on behalf of the flow |
---|
1451 | * object. |
---|
1452 | * |
---|
1453 | * Side effects: See the user documentation. |
---|
1454 | * |
---|
1455 | * \return A standard Tcl result. |
---|
1456 | */ |
---|
1457 | static int |
---|
1458 | FlowInstObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1459 | Tcl_Obj *const *objv) |
---|
1460 | { |
---|
1461 | Tcl_ObjCmdProc *proc; |
---|
1462 | proc = Rappture::GetOpFromObj(interp, nFlowInstOps, flowInstOps, |
---|
1463 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
---|
1464 | if (proc == NULL) { |
---|
1465 | return TCL_ERROR; |
---|
1466 | } |
---|
1467 | assert(CheckGL(AT)); |
---|
1468 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1469 | Tcl_Preserve(flow); |
---|
1470 | int result = (*proc) (clientData, interp, objc, objv); |
---|
1471 | Tcl_Release(flow); |
---|
1472 | return result; |
---|
1473 | } |
---|
1474 | |
---|
1475 | /** |
---|
1476 | * \brief Deletes the command associated with the flow |
---|
1477 | * |
---|
1478 | * This is called only when the command associated with the flow is destroyed. |
---|
1479 | */ |
---|
1480 | static void |
---|
1481 | FlowInstDeleteProc(ClientData clientData) |
---|
1482 | { |
---|
1483 | FlowCmd *flow = (FlowCmd *)clientData; |
---|
1484 | NanoVis::deleteFlow(flow->name()); |
---|
1485 | } |
---|
1486 | |
---|
1487 | static int |
---|
1488 | FlowAddOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1489 | Tcl_Obj *const *objv) |
---|
1490 | { |
---|
1491 | const char *name = Tcl_GetString(objv[2]); |
---|
1492 | Tcl_CmdInfo cmdInfo; |
---|
1493 | if (Tcl_GetCommandInfo(interp, name, &cmdInfo)) { |
---|
1494 | Tcl_AppendResult(interp, "an another command \"", name, |
---|
1495 | "\" already exists.", (char *)NULL); |
---|
1496 | return TCL_ERROR; |
---|
1497 | } |
---|
1498 | FlowCmd *flow = NanoVis::createFlow(interp, name); |
---|
1499 | if (flow == NULL) { |
---|
1500 | Tcl_AppendResult(interp, "Flow \"", name, "\" already exists", |
---|
1501 | (char*)NULL); |
---|
1502 | return TCL_ERROR; |
---|
1503 | } |
---|
1504 | if (flow->parseSwitches(interp, objc - 3, objv + 3) != TCL_OK) { |
---|
1505 | Tcl_DeleteCommand(interp, flow->name()); |
---|
1506 | return TCL_ERROR; |
---|
1507 | } |
---|
1508 | Tcl_SetObjResult(interp, objv[2]); |
---|
1509 | NanoVis::eventuallyRedraw(); |
---|
1510 | return TCL_OK; |
---|
1511 | } |
---|
1512 | |
---|
1513 | static int |
---|
1514 | FlowDeleteOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1515 | Tcl_Obj *const *objv) |
---|
1516 | { |
---|
1517 | for (int i = 2; i < objc; i++) { |
---|
1518 | FlowCmd *flow = NanoVis::getFlow(Tcl_GetString(objv[i])); |
---|
1519 | if (flow != NULL) { |
---|
1520 | Tcl_DeleteCommandFromToken(interp, flow->getCommandToken()); |
---|
1521 | } |
---|
1522 | } |
---|
1523 | NanoVis::eventuallyRedraw(NanoVis::MAP_FLOWS); |
---|
1524 | return TCL_OK; |
---|
1525 | } |
---|
1526 | |
---|
1527 | static int |
---|
1528 | FlowExistsOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1529 | Tcl_Obj *const *objv) |
---|
1530 | { |
---|
1531 | bool value = false; |
---|
1532 | FlowCmd *flow = NanoVis::getFlow(Tcl_GetString(objv[2])); |
---|
1533 | if (flow != NULL) { |
---|
1534 | value = true; |
---|
1535 | } |
---|
1536 | Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (int)value); |
---|
1537 | return TCL_OK; |
---|
1538 | } |
---|
1539 | |
---|
1540 | /** |
---|
1541 | * \brief flow goto number |
---|
1542 | */ |
---|
1543 | static int |
---|
1544 | FlowGotoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1545 | Tcl_Obj *const *objv) |
---|
1546 | { |
---|
1547 | int nSteps; |
---|
1548 | if (Tcl_GetIntFromObj(interp, objv[2], &nSteps) != TCL_OK) { |
---|
1549 | return TCL_ERROR; |
---|
1550 | } |
---|
1551 | if ((nSteps < 0) || (nSteps > SHRT_MAX)) { |
---|
1552 | Tcl_AppendResult(interp, "flow goto: bad # of steps \"", |
---|
1553 | Tcl_GetString(objv[2]), "\"", (char *)NULL); |
---|
1554 | return TCL_ERROR; |
---|
1555 | } |
---|
1556 | NanoVis::resetFlows(); |
---|
1557 | if (NanoVis::flags & NanoVis::MAP_FLOWS) { |
---|
1558 | NanoVis::mapFlows(); |
---|
1559 | } |
---|
1560 | NanoVis::advectFlows(); |
---|
1561 | for (int i = 0; i < nSteps; i++) { |
---|
1562 | if (NanoVis::licRenderer->active()) { |
---|
1563 | NanoVis::licRenderer->convolve(); |
---|
1564 | } |
---|
1565 | NanoVis::advectFlows(); |
---|
1566 | } |
---|
1567 | NanoVis::eventuallyRedraw(); |
---|
1568 | return TCL_OK; |
---|
1569 | } |
---|
1570 | |
---|
1571 | static int |
---|
1572 | FlowNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1573 | Tcl_Obj *const *objv) |
---|
1574 | { |
---|
1575 | Tcl_Obj *listObjPtr; |
---|
1576 | listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); |
---|
1577 | for (NanoVis::FlowHashmap::iterator itr = NanoVis::flowTable.begin(); |
---|
1578 | itr != NanoVis::flowTable.end(); ++itr) { |
---|
1579 | FlowCmd *flow = itr->second; |
---|
1580 | Tcl_Obj *objPtr = Tcl_NewStringObj(flow->name(), -1); |
---|
1581 | Tcl_ListObjAppendElement(interp, listObjPtr, objPtr); |
---|
1582 | } |
---|
1583 | Tcl_SetObjResult(interp, listObjPtr); |
---|
1584 | return TCL_OK; |
---|
1585 | } |
---|
1586 | |
---|
1587 | static int |
---|
1588 | FlowNextOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1589 | Tcl_Obj *const *objv) |
---|
1590 | { |
---|
1591 | assert(NanoVis::licRenderer != NULL); |
---|
1592 | if (NanoVis::flags & NanoVis::MAP_FLOWS) { |
---|
1593 | NanoVis::mapFlows(); |
---|
1594 | } |
---|
1595 | NanoVis::eventuallyRedraw(); |
---|
1596 | NanoVis::licRenderer->convolve(); |
---|
1597 | NanoVis::advectFlows(); |
---|
1598 | return TCL_OK; |
---|
1599 | } |
---|
1600 | |
---|
1601 | static int |
---|
1602 | FlowResetOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1603 | Tcl_Obj *const *objv) |
---|
1604 | { |
---|
1605 | NanoVis::resetFlows(); |
---|
1606 | return TCL_OK; |
---|
1607 | } |
---|
1608 | |
---|
1609 | /** |
---|
1610 | * \brief Convert a Tcl_Obj representing the video format into its |
---|
1611 | * integer id. |
---|
1612 | * |
---|
1613 | * \param clientData Not used |
---|
1614 | * \param interp Interpreter to send results back to |
---|
1615 | * \param switchName Not used |
---|
1616 | * \param objPtr String representation |
---|
1617 | * \param record Structure record |
---|
1618 | * \param offset Not used |
---|
1619 | * \param flags Not used |
---|
1620 | * |
---|
1621 | * \return The return value is a standard Tcl result. |
---|
1622 | */ |
---|
1623 | static int |
---|
1624 | VideoFormatSwitchProc(ClientData clientData, Tcl_Interp *interp, |
---|
1625 | const char *switchName, Tcl_Obj *objPtr, |
---|
1626 | char *record, int offset, int flags) |
---|
1627 | { |
---|
1628 | Tcl_Obj **formatObjPtr = (Tcl_Obj **)(record + offset); |
---|
1629 | Tcl_Obj *fmtObjPtr; |
---|
1630 | const char *string; |
---|
1631 | char c; |
---|
1632 | int length; |
---|
1633 | |
---|
1634 | string = Tcl_GetStringFromObj(objPtr, &length); |
---|
1635 | c = string[0]; |
---|
1636 | if ((c == 'm') && (length > 1) && |
---|
1637 | (strncmp(string, "mpeg", length) == 0)) { |
---|
1638 | fmtObjPtr = Tcl_NewStringObj("mpeg1video", 10); |
---|
1639 | } else if ((c == 't') && (strncmp(string, "theora", length) == 0)) { |
---|
1640 | fmtObjPtr = Tcl_NewStringObj("theora", 6); |
---|
1641 | } else if ((c == 'm') && (length > 1) && |
---|
1642 | (strncmp(string, "mov", length) == 0)) { |
---|
1643 | fmtObjPtr = Tcl_NewStringObj("mov", 3); |
---|
1644 | } else { |
---|
1645 | Tcl_AppendResult(interp, "bad video format \"", string, |
---|
1646 | "\": should be mpeg, theora, or mov", (char*)NULL); |
---|
1647 | return TCL_ERROR; |
---|
1648 | } |
---|
1649 | if (*formatObjPtr != NULL) { |
---|
1650 | Tcl_DecrRefCount(*formatObjPtr); |
---|
1651 | } |
---|
1652 | Tcl_IncrRefCount(fmtObjPtr); |
---|
1653 | *formatObjPtr = fmtObjPtr; |
---|
1654 | return TCL_OK; |
---|
1655 | } |
---|
1656 | |
---|
1657 | struct FlowVideoSwitches { |
---|
1658 | float frameRate; /**< Frame rate */ |
---|
1659 | int bitRate; /**< Video bitrate */ |
---|
1660 | int width, height; /**< Dimensions of video frame. */ |
---|
1661 | int numFrames; |
---|
1662 | Tcl_Obj *formatObjPtr; |
---|
1663 | }; |
---|
1664 | |
---|
1665 | static Rappture::SwitchParseProc VideoFormatSwitchProc; |
---|
1666 | static Rappture::SwitchCustom videoFormatSwitch = { |
---|
1667 | VideoFormatSwitchProc, NULL, 0, |
---|
1668 | }; |
---|
1669 | |
---|
1670 | Rappture::SwitchSpec FlowCmd::videoSwitches[] = { |
---|
1671 | {Rappture::SWITCH_INT, "-bitrate", "value", |
---|
1672 | offsetof(FlowVideoSwitches, bitRate), 0}, |
---|
1673 | {Rappture::SWITCH_CUSTOM, "-format", "string", |
---|
1674 | offsetof(FlowVideoSwitches, formatObjPtr), 0, 0, &videoFormatSwitch}, |
---|
1675 | {Rappture::SWITCH_FLOAT, "-framerate", "value", |
---|
1676 | offsetof(FlowVideoSwitches, frameRate), 0}, |
---|
1677 | {Rappture::SWITCH_INT, "-height", "integer", |
---|
1678 | offsetof(FlowVideoSwitches, height), 0}, |
---|
1679 | {Rappture::SWITCH_INT, "-numframes", "count", |
---|
1680 | offsetof(FlowVideoSwitches, numFrames), 0}, |
---|
1681 | {Rappture::SWITCH_INT, "-width", "integer", |
---|
1682 | offsetof(FlowVideoSwitches, width), 0}, |
---|
1683 | {Rappture::SWITCH_END} |
---|
1684 | }; |
---|
1685 | |
---|
1686 | #ifdef HAVE_FFMPEG |
---|
1687 | |
---|
1688 | static int |
---|
1689 | ppmWriteToFile(Tcl_Interp *interp, const char *path, FlowVideoSwitches *switchesPtr) |
---|
1690 | { |
---|
1691 | int f; |
---|
1692 | |
---|
1693 | /* Open the named file for writing. */ |
---|
1694 | f = creat(path, 0600); |
---|
1695 | if (f < 0) { |
---|
1696 | Tcl_AppendResult(interp, "can't open temporary image file \"", path, |
---|
1697 | "\": ", Tcl_PosixError(interp), (char *)NULL); |
---|
1698 | return TCL_ERROR; |
---|
1699 | } |
---|
1700 | // Generate the PPM binary file header |
---|
1701 | char header[200]; |
---|
1702 | #define PPM_MAXVAL 255 |
---|
1703 | sprintf(header, "P6 %d %d %d\n", switchesPtr->width, switchesPtr->height, |
---|
1704 | PPM_MAXVAL); |
---|
1705 | |
---|
1706 | size_t header_length = strlen(header); |
---|
1707 | size_t wordsPerRow = (switchesPtr->width * 24 + 31) / 32; |
---|
1708 | size_t bytesPerRow = wordsPerRow * 4; |
---|
1709 | size_t rowLength = switchesPtr->width * 3; |
---|
1710 | size_t numRecords = switchesPtr->height + 1; |
---|
1711 | |
---|
1712 | struct iovec *iov; |
---|
1713 | iov = (struct iovec *)malloc(sizeof(struct iovec) * numRecords); |
---|
1714 | |
---|
1715 | // Add the PPM image header. |
---|
1716 | iov[0].iov_base = header; |
---|
1717 | iov[0].iov_len = header_length; |
---|
1718 | |
---|
1719 | // Now add the image data, reversing the order of the rows. |
---|
1720 | int y; |
---|
1721 | unsigned char *srcRowPtr = NanoVis::screenBuffer; |
---|
1722 | /* Reversing the pointers for the image rows. PPM is top-to-bottom. */ |
---|
1723 | for (y = switchesPtr->height; y >= 1; y--) { |
---|
1724 | iov[y].iov_base = srcRowPtr; |
---|
1725 | iov[y].iov_len = rowLength; |
---|
1726 | srcRowPtr += bytesPerRow; |
---|
1727 | } |
---|
1728 | if (writev(f, iov, numRecords) < 0) { |
---|
1729 | Tcl_AppendResult(interp, "writing image to \"", path, "\" failed: ", |
---|
1730 | Tcl_PosixError(interp), (char *)NULL); |
---|
1731 | free(iov); |
---|
1732 | close(f); |
---|
1733 | return TCL_ERROR; |
---|
1734 | } |
---|
1735 | close(f); |
---|
1736 | free(iov); |
---|
1737 | return TCL_OK; |
---|
1738 | } |
---|
1739 | |
---|
1740 | static int |
---|
1741 | MakeImageFiles(Tcl_Interp *interp, char *tmpFileName, |
---|
1742 | FlowVideoSwitches *switchesPtr, bool *cancelPtr) |
---|
1743 | { |
---|
1744 | struct pollfd pollResults; |
---|
1745 | pollResults.fd = fileno(NanoVis::stdin); |
---|
1746 | pollResults.events = POLLIN; |
---|
1747 | #define PENDING_TIMEOUT 10 /* milliseconds. */ |
---|
1748 | int timeout = PENDING_TIMEOUT; |
---|
1749 | |
---|
1750 | int oldWidth, oldHeight; |
---|
1751 | oldWidth = NanoVis::winWidth; |
---|
1752 | oldHeight = NanoVis::winHeight; |
---|
1753 | |
---|
1754 | if ((switchesPtr->width != oldWidth) || |
---|
1755 | (switchesPtr->height != oldHeight)) { |
---|
1756 | // Resize to the requested size. |
---|
1757 | NanoVis::resizeOffscreenBuffer(switchesPtr->width, switchesPtr->height); |
---|
1758 | } |
---|
1759 | NanoVis::resetFlows(); |
---|
1760 | *cancelPtr = false; |
---|
1761 | int result = TCL_OK; |
---|
1762 | size_t length = strlen(tmpFileName); |
---|
1763 | for (int i = 1; i <= switchesPtr->numFrames; i++) { |
---|
1764 | if (((i & 0xF) == 0) && (poll(&pollResults, 1, timeout) > 0)) { |
---|
1765 | /* If there's another command on stdin, that means the client is |
---|
1766 | * trying to cancel this operation. */ |
---|
1767 | *cancelPtr = true; |
---|
1768 | break; |
---|
1769 | } |
---|
1770 | if (NanoVis::licRenderer->active()) { |
---|
1771 | NanoVis::licRenderer->convolve(); |
---|
1772 | } |
---|
1773 | NanoVis::advectFlows(); |
---|
1774 | |
---|
1775 | int fboOrig; |
---|
1776 | glGetIntegerv(GL_FRAMEBUFFER_BINDING_EXT, &fboOrig); |
---|
1777 | |
---|
1778 | NanoVis::bindOffscreenBuffer(); |
---|
1779 | NanoVis::render(); |
---|
1780 | NanoVis::readScreen(); |
---|
1781 | |
---|
1782 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboOrig); |
---|
1783 | |
---|
1784 | sprintf(tmpFileName + length, "/image%d.ppm", i); |
---|
1785 | result = ppmWriteToFile(interp, tmpFileName, switchesPtr); |
---|
1786 | if (result != TCL_OK) { |
---|
1787 | break; |
---|
1788 | } |
---|
1789 | } |
---|
1790 | if ((switchesPtr->width != oldWidth) || |
---|
1791 | (switchesPtr->height != oldHeight)) { |
---|
1792 | NanoVis::resizeOffscreenBuffer(oldWidth, oldHeight); |
---|
1793 | } |
---|
1794 | tmpFileName[length] = '\0'; |
---|
1795 | NanoVis::resetFlows(); |
---|
1796 | return result; |
---|
1797 | } |
---|
1798 | |
---|
1799 | static int |
---|
1800 | MakeMovie(Tcl_Interp *interp, char *tmpFileName, const char *token, |
---|
1801 | FlowVideoSwitches *switchesPtr) |
---|
1802 | { |
---|
1803 | #ifndef FFMPEG |
---|
1804 | # define FFMPEG "/usr/bin/ffmpeg" |
---|
1805 | #endif |
---|
1806 | /* Generate the movie from the frame images by exec-ing ffmpeg */ |
---|
1807 | /* The ffmpeg command is |
---|
1808 | * ffmpeg -f image2 -i /var/tmp/xxxxx/image%d.ppm \ |
---|
1809 | * -b bitrate -f framerate /var/tmp/xxxxx/movie.mpeg |
---|
1810 | */ |
---|
1811 | char cmd[BUFSIZ]; |
---|
1812 | sprintf(cmd, "%s -f image2 -i %s/image%%d.ppm -f %s -b %d -r %f -", |
---|
1813 | FFMPEG, tmpFileName, Tcl_GetString(switchesPtr->formatObjPtr), |
---|
1814 | switchesPtr->bitRate, switchesPtr->frameRate); |
---|
1815 | TRACE("Enter: %s", cmd); |
---|
1816 | FILE *f; |
---|
1817 | f = popen(cmd, "r"); |
---|
1818 | if (f == NULL) { |
---|
1819 | Tcl_AppendResult(interp, "can't run ffmpeg: ", |
---|
1820 | Tcl_PosixError(interp), (char *)NULL); |
---|
1821 | return TCL_ERROR; |
---|
1822 | } |
---|
1823 | Rappture::Buffer data; |
---|
1824 | size_t total = 0; |
---|
1825 | for (;;) { |
---|
1826 | ssize_t numRead; |
---|
1827 | char buffer[BUFSIZ]; |
---|
1828 | |
---|
1829 | numRead = fread(buffer, sizeof(unsigned char), BUFSIZ, f); |
---|
1830 | total += numRead; |
---|
1831 | if (numRead == 0) { // EOF |
---|
1832 | break; |
---|
1833 | } |
---|
1834 | if (numRead < 0) { // Error |
---|
1835 | ERROR("Can't read movie data: %s", |
---|
1836 | Tcl_PosixError(interp)); |
---|
1837 | Tcl_AppendResult(interp, "can't read movie data: ", |
---|
1838 | Tcl_PosixError(interp), (char *)NULL); |
---|
1839 | return TCL_ERROR; |
---|
1840 | } |
---|
1841 | if (!data.append(buffer, numRead)) { |
---|
1842 | ERROR("Can't append movie data to buffer %d bytes", |
---|
1843 | numRead); |
---|
1844 | Tcl_AppendResult(interp, "can't append movie data to buffer", |
---|
1845 | (char *)NULL); |
---|
1846 | return TCL_ERROR; |
---|
1847 | } |
---|
1848 | } |
---|
1849 | if (data.size() == 0) { |
---|
1850 | ERROR("ffmpeg returned 0 bytes"); |
---|
1851 | } |
---|
1852 | // Send zero length to client so it can deal with error |
---|
1853 | sprintf(cmd,"nv>image -type movie -token \"%s\" -bytes %lu\n", |
---|
1854 | token, (unsigned long)data.size()); |
---|
1855 | NanoVis::sendDataToClient(cmd, data.bytes(), data.size()); |
---|
1856 | return TCL_OK; |
---|
1857 | } |
---|
1858 | |
---|
1859 | static int |
---|
1860 | FlowVideoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1861 | Tcl_Obj *const *objv) |
---|
1862 | { |
---|
1863 | FlowVideoSwitches switches; |
---|
1864 | const char *token; |
---|
1865 | |
---|
1866 | token = Tcl_GetString(objv[2]); |
---|
1867 | switches.frameRate = 25.0f; // Default frame rate 25 fps |
---|
1868 | switches.bitRate = 6000000; // Default video bit rate. |
---|
1869 | switches.width = NanoVis::winWidth; |
---|
1870 | switches.height = NanoVis::winHeight; |
---|
1871 | switches.numFrames = 100; |
---|
1872 | switches.formatObjPtr = Tcl_NewStringObj("mpeg1video", 10); |
---|
1873 | Tcl_IncrRefCount(switches.formatObjPtr); |
---|
1874 | if (Rappture::ParseSwitches(interp, FlowCmd::videoSwitches, |
---|
1875 | objc - 3, objv + 3, &switches, SWITCH_DEFAULTS) < 0) { |
---|
1876 | return TCL_ERROR; |
---|
1877 | } |
---|
1878 | if ((switches.width < 0) || (switches.width > SHRT_MAX) || |
---|
1879 | (switches.height < 0) || (switches.height > SHRT_MAX)) { |
---|
1880 | Tcl_AppendResult(interp, "bad dimensions for video", (char *)NULL); |
---|
1881 | return TCL_ERROR; |
---|
1882 | } |
---|
1883 | if ((switches.frameRate < 0.0f) || (switches.frameRate > 30.0f)) { |
---|
1884 | Tcl_AppendResult(interp, "bad frame rate.", (char *)NULL); |
---|
1885 | return TCL_ERROR; |
---|
1886 | } |
---|
1887 | if (switches.bitRate < 0) { |
---|
1888 | Tcl_AppendResult(interp, "bad bit rate.", (char *)NULL); |
---|
1889 | return TCL_ERROR; |
---|
1890 | } |
---|
1891 | if (NanoVis::licRenderer == NULL) { |
---|
1892 | Tcl_AppendResult(interp, "no lic renderer.", (char *)NULL); |
---|
1893 | return TCL_ERROR; |
---|
1894 | } |
---|
1895 | TRACE("FLOW started"); |
---|
1896 | |
---|
1897 | char *tmpFileName; |
---|
1898 | char nameTemplate[200]; |
---|
1899 | strcpy(nameTemplate,"/var/tmp/flowXXXXXX"); |
---|
1900 | tmpFileName = mkdtemp(nameTemplate); |
---|
1901 | int result = TCL_OK; |
---|
1902 | if (tmpFileName == NULL) { |
---|
1903 | Tcl_AppendResult(interp, "can't create temporary directory \"", |
---|
1904 | nameTemplate, "\" for frame image files: ", |
---|
1905 | Tcl_PosixError(interp), (char *)NULL); |
---|
1906 | return TCL_ERROR; |
---|
1907 | } |
---|
1908 | size_t length = strlen(tmpFileName); |
---|
1909 | bool canceled = false; |
---|
1910 | result = MakeImageFiles(interp, tmpFileName, &switches, &canceled); |
---|
1911 | if ((result == TCL_OK) && (!canceled)) { |
---|
1912 | result = MakeMovie(interp, tmpFileName, token, &switches); |
---|
1913 | } |
---|
1914 | for (int i = 1; i <= switches.numFrames; i++) { |
---|
1915 | sprintf(tmpFileName + length, "/image%d.ppm", i); |
---|
1916 | unlink(tmpFileName); |
---|
1917 | } |
---|
1918 | tmpFileName[length] = '\0'; |
---|
1919 | rmdir(tmpFileName); |
---|
1920 | Rappture::FreeSwitches(FlowCmd::videoSwitches, &switches, 0); |
---|
1921 | return result; |
---|
1922 | } |
---|
1923 | #else |
---|
1924 | /** |
---|
1925 | * Not implemented |
---|
1926 | */ |
---|
1927 | static int |
---|
1928 | FlowVideoOp(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1929 | Tcl_Obj *const *objv) |
---|
1930 | { |
---|
1931 | return TCL_OK; |
---|
1932 | } |
---|
1933 | #endif /* HAVE_FFMPEG */ |
---|
1934 | |
---|
1935 | static Rappture::CmdSpec flowCmdOps[] = { |
---|
1936 | {"add", 1, FlowAddOp, 3, 0, "name ?option value...?",}, |
---|
1937 | {"delete", 1, FlowDeleteOp, 3, 0, "name ?name...?",}, |
---|
1938 | {"exists", 1, FlowExistsOp, 3, 3, "name",}, |
---|
1939 | {"goto", 1, FlowGotoOp, 3, 3, "nSteps",}, |
---|
1940 | {"names", 1, FlowNamesOp, 2, 2, "",}, |
---|
1941 | {"next", 2, FlowNextOp, 2, 2, "",}, |
---|
1942 | {"reset", 1, FlowResetOp, 2, 2, "",}, |
---|
1943 | {"video", 1, FlowVideoOp, 3, 0, "token ?switches...?",}, |
---|
1944 | }; |
---|
1945 | static int nFlowCmdOps = NumCmdSpecs(flowCmdOps); |
---|
1946 | |
---|
1947 | static int |
---|
1948 | FlowCmdProc(ClientData clientData, Tcl_Interp *interp, int objc, |
---|
1949 | Tcl_Obj *const *objv) |
---|
1950 | { |
---|
1951 | Tcl_ObjCmdProc *proc; |
---|
1952 | |
---|
1953 | proc = Rappture::GetOpFromObj(interp, nFlowCmdOps, flowCmdOps, |
---|
1954 | Rappture::CMDSPEC_ARG1, objc, objv, 0); |
---|
1955 | if (proc == NULL) { |
---|
1956 | return TCL_ERROR; |
---|
1957 | } |
---|
1958 | return (*proc) (clientData, interp, objc, objv); |
---|
1959 | } |
---|
1960 | |
---|
1961 | /** |
---|
1962 | *\brief This procedure is invoked to initialize the "flow" command. |
---|
1963 | * |
---|
1964 | * Side effects: |
---|
1965 | * Creates the new command and adds a new entry into a global Tcl |
---|
1966 | * associative array. |
---|
1967 | */ |
---|
1968 | int |
---|
1969 | FlowCmdInitProc(Tcl_Interp *interp) |
---|
1970 | { |
---|
1971 | Tcl_CreateObjCommand(interp, "flow", FlowCmdProc, NULL, NULL); |
---|
1972 | return TCL_OK; |
---|
1973 | } |
---|