/indra/llprimitive/llvolumemessage.cpp
C++ | 555 lines | 384 code | 105 blank | 66 comment | 13 complexity | cb335c8ff6f1b63e41504e7ab0b56955 MD5 | raw file
1/** 2 * @file llvolumemessage.cpp 3 * @brief LLVolumeMessage base class 4 * 5 * $LicenseInfo:firstyear=2001&license=viewerlgpl$ 6 * Second Life Viewer Source Code 7 * Copyright (C) 2010, Linden Research, Inc. 8 * 9 * This library is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU Lesser General Public 11 * License as published by the Free Software Foundation; 12 * version 2.1 of the License only. 13 * 14 * This library is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Lesser General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public 20 * License along with this library; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 22 * 23 * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA 24 * $/LicenseInfo$ 25 */ 26 27#include "linden_common.h" 28 29#include "message.h" 30#include "llvolumemessage.h" 31#include "lldatapacker.h" 32 33//============================================================================ 34 35// LLVolumeMessage is just a wrapper class; all members are static 36 37//============================================================================ 38 39bool LLVolumeMessage::packProfileParams( 40 const LLProfileParams* params, 41 LLMessageSystem *mesgsys) 42{ 43 // Default to cylinder 44 static LLProfileParams defaultparams(LL_PCODE_PROFILE_CIRCLE, U16(0), U16(0), U16(0)); 45 46 if (!params) 47 params = &defaultparams; 48 49 U8 tempU8; 50 U16 tempU16; 51 52 tempU8 = params->getCurveType(); 53 mesgsys->addU8Fast(_PREHASH_ProfileCurve, tempU8); 54 55 tempU16 = (U16) llround( params->getBegin() / CUT_QUANTA); 56 mesgsys->addU16Fast(_PREHASH_ProfileBegin, tempU16); 57 58 tempU16 = 50000 - (U16) llround(params->getEnd() / CUT_QUANTA); 59 mesgsys->addU16Fast(_PREHASH_ProfileEnd, tempU16); 60 61 tempU16 = (U16) llround(params->getHollow() / HOLLOW_QUANTA); 62 mesgsys->addU16Fast(_PREHASH_ProfileHollow, tempU16); 63 64 return true; 65} 66 67bool LLVolumeMessage::packProfileParams( 68 const LLProfileParams* params, 69 LLDataPacker &dp) 70{ 71 // Default to cylinder 72 static LLProfileParams defaultparams(LL_PCODE_PROFILE_CIRCLE, U16(0), U16(0), U16(0)); 73 74 if (!params) 75 params = &defaultparams; 76 77 U8 tempU8; 78 U16 tempU16; 79 80 tempU8 = params->getCurveType(); 81 dp.packU8(tempU8, "Curve"); 82 83 tempU16 = (U16) llround( params->getBegin() / CUT_QUANTA); 84 dp.packU16(tempU16, "Begin"); 85 86 tempU16 = 50000 - (U16) llround(params->getEnd() / CUT_QUANTA); 87 dp.packU16(tempU16, "End"); 88 89 tempU16 = (U16) llround(params->getHollow() / HOLLOW_QUANTA); 90 dp.packU16(tempU16, "Hollow"); 91 return true; 92} 93 94bool LLVolumeMessage::unpackProfileParams( 95 LLProfileParams* params, 96 LLMessageSystem* mesgsys, 97 char const* block_name, 98 S32 block_num) 99{ 100 bool ok = true; 101 U8 temp_u8; 102 U16 temp_u16; 103 F32 temp_f32; 104 105 mesgsys->getU8Fast(block_name, _PREHASH_ProfileCurve, temp_u8, block_num); 106 params->setCurveType(temp_u8); 107 108 mesgsys->getU16Fast(block_name, _PREHASH_ProfileBegin, temp_u16, block_num); 109 temp_f32 = temp_u16 * CUT_QUANTA; 110 if (temp_f32 > 1.f) 111 { 112 llwarns << "Profile begin out of range: " << temp_f32 113 << ". Clamping to 0.0." << llendl; 114 temp_f32 = 0.f; 115 ok = false; 116 } 117 params->setBegin(temp_f32); 118 119 mesgsys->getU16Fast(block_name, _PREHASH_ProfileEnd, temp_u16, block_num); 120 temp_f32 = temp_u16 * CUT_QUANTA; 121 if (temp_f32 > 1.f) 122 { 123 llwarns << "Profile end out of range: " << 1.f - temp_f32 124 << ". Clamping to 1.0." << llendl; 125 temp_f32 = 1.f; 126 ok = false; 127 } 128 params->setEnd(1.f - temp_f32); 129 130 mesgsys->getU16Fast(block_name, _PREHASH_ProfileHollow, temp_u16, block_num); 131 temp_f32 = temp_u16 * HOLLOW_QUANTA; 132 if (temp_f32 > 1.f) 133 { 134 llwarns << "Profile hollow out of range: " << temp_f32 135 << ". Clamping to 0.0." << llendl; 136 temp_f32 = 0.f; 137 ok = false; 138 } 139 params->setHollow(temp_f32); 140 141 /* 142 llinfos << "Unpacking Profile Block " << block_num << llendl; 143 llinfos << "Curve: " << (U32)getCurve() << llendl; 144 llinfos << "Begin: " << getBegin() << llendl; 145 llinfos << "End: " << getEnd() << llendl; 146 llinfos << "Hollow: " << getHollow() << llendl; 147 */ 148 return ok; 149 150} 151 152bool LLVolumeMessage::unpackProfileParams( 153 LLProfileParams* params, 154 LLDataPacker &dp) 155{ 156 bool ok = true; 157 U8 temp_u8; 158 U16 temp_u16; 159 F32 temp_f32; 160 161 dp.unpackU8(temp_u8, "Curve"); 162 params->setCurveType(temp_u8); 163 164 dp.unpackU16(temp_u16, "Begin"); 165 temp_f32 = temp_u16 * CUT_QUANTA; 166 if (temp_f32 > 1.f) 167 { 168 llwarns << "Profile begin out of range: " << temp_f32 << llendl; 169 llwarns << "Clamping to 0.0" << llendl; 170 temp_f32 = 0.f; 171 ok = false; 172 } 173 params->setBegin(temp_f32); 174 175 dp.unpackU16(temp_u16, "End"); 176 temp_f32 = temp_u16 * CUT_QUANTA; 177 if (temp_f32 > 1.f) 178 { 179 llwarns << "Profile end out of range: " << 1.f - temp_f32 << llendl; 180 llwarns << "Clamping to 1.0" << llendl; 181 temp_f32 = 1.f; 182 ok = false; 183 } 184 params->setEnd(1.f - temp_f32); 185 186 dp.unpackU16(temp_u16, "Hollow"); 187 temp_f32 = temp_u16 * HOLLOW_QUANTA; 188 if (temp_f32 > 1.f) 189 { 190 llwarns << "Profile hollow out of range: " << temp_f32 << llendl; 191 llwarns << "Clamping to 0.0" << llendl; 192 temp_f32 = 0.f; 193 ok = false; 194 } 195 params->setHollow(temp_f32); 196 197 return ok; 198} 199 200//============================================================================ 201 202// Quantization: 203// For cut begin, range is 0 to 1, quanta is 0.005, 0 maps to 0 204// For cut end, range is 0 to 1, quanta is 0.005, 1 maps to 0 205// For scale, range is 0 to 1, quanta is 0.01, 0 maps to 0, 1 maps to 100 206// For shear, range is -0.5 to 0.5, quanta is 0.01, 0 maps to 0 207// For taper, range is -1 to 1, quanta is 0.01, 0 maps to 0 208bool LLVolumeMessage::packPathParams( 209 const LLPathParams* params, 210 LLMessageSystem *mesgsys) 211{ 212 // Default to cylinder with no cut, top same size as bottom, no shear, no twist 213 static LLPathParams defaultparams(LL_PCODE_PATH_LINE, U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), 0); 214 if (!params) 215 params = &defaultparams; 216 217 U8 curve = params->getCurveType(); 218 mesgsys->addU8Fast(_PREHASH_PathCurve, curve); 219 220 U16 begin = (U16) llround(params->getBegin() / CUT_QUANTA); 221 mesgsys->addU16Fast(_PREHASH_PathBegin, begin); 222 223 U16 end = 50000 - (U16) llround(params->getEnd() / CUT_QUANTA); 224 mesgsys->addU16Fast(_PREHASH_PathEnd, end); 225 226 // Avoid truncation problem with direct F32->U8 cast. 227 // (e.g., (U8) (0.50 / 0.01) = (U8) 49.9999999 = 49 not 50. 228 229 U8 pack_scale_x = 200 - (U8) llround(params->getScaleX() / SCALE_QUANTA); 230 mesgsys->addU8Fast(_PREHASH_PathScaleX, pack_scale_x ); 231 232 U8 pack_scale_y = 200 - (U8) llround(params->getScaleY() / SCALE_QUANTA); 233 mesgsys->addU8Fast(_PREHASH_PathScaleY, pack_scale_y ); 234 235 U8 pack_shear_x = (U8) llround(params->getShearX() / SHEAR_QUANTA); 236 mesgsys->addU8Fast(_PREHASH_PathShearX, pack_shear_x ); 237 238 U8 pack_shear_y = (U8) llround(params->getShearY() / SHEAR_QUANTA); 239 mesgsys->addU8Fast(_PREHASH_PathShearY, pack_shear_y ); 240 241 S8 twist = (S8) llround(params->getTwist() / SCALE_QUANTA); 242 mesgsys->addS8Fast(_PREHASH_PathTwist, twist); 243 244 S8 twist_begin = (S8) llround(params->getTwistBegin() / SCALE_QUANTA); 245 mesgsys->addS8Fast(_PREHASH_PathTwistBegin, twist_begin); 246 247 S8 radius_offset = (S8) llround(params->getRadiusOffset() / SCALE_QUANTA); 248 mesgsys->addS8Fast(_PREHASH_PathRadiusOffset, radius_offset); 249 250 S8 taper_x = (S8) llround(params->getTaperX() / TAPER_QUANTA); 251 mesgsys->addS8Fast(_PREHASH_PathTaperX, taper_x); 252 253 S8 taper_y = (S8) llround(params->getTaperY() / TAPER_QUANTA); 254 mesgsys->addS8Fast(_PREHASH_PathTaperY, taper_y); 255 256 U8 revolutions = (U8) llround( (params->getRevolutions() - 1.0f) / REV_QUANTA); 257 mesgsys->addU8Fast(_PREHASH_PathRevolutions, revolutions); 258 259 S8 skew = (S8) llround(params->getSkew() / SCALE_QUANTA); 260 mesgsys->addS8Fast(_PREHASH_PathSkew, skew); 261 262 return true; 263} 264 265bool LLVolumeMessage::packPathParams( 266 const LLPathParams* params, 267 LLDataPacker &dp) 268{ 269 // Default to cylinder with no cut, top same size as bottom, no shear, no twist 270 static LLPathParams defaultparams(LL_PCODE_PATH_LINE, U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), U8(0), 0); 271 if (!params) 272 params = &defaultparams; 273 274 U8 curve = params->getCurveType(); 275 dp.packU8(curve, "Curve"); 276 277 U16 begin = (U16) llround(params->getBegin() / CUT_QUANTA); 278 dp.packU16(begin, "Begin"); 279 280 U16 end = 50000 - (U16) llround(params->getEnd() / CUT_QUANTA); 281 dp.packU16(end, "End"); 282 283 // Avoid truncation problem with direct F32->U8 cast. 284 // (e.g., (U8) (0.50 / 0.01) = (U8) 49.9999999 = 49 not 50. 285 286 U8 pack_scale_x = 200 - (U8) llround(params->getScaleX() / SCALE_QUANTA); 287 dp.packU8(pack_scale_x, "ScaleX"); 288 289 U8 pack_scale_y = 200 - (U8) llround(params->getScaleY() / SCALE_QUANTA); 290 dp.packU8(pack_scale_y, "ScaleY"); 291 292 S8 pack_shear_x = (S8) llround(params->getShearX() / SHEAR_QUANTA); 293 dp.packU8(*(U8 *)&pack_shear_x, "ShearX"); 294 295 S8 pack_shear_y = (S8) llround(params->getShearY() / SHEAR_QUANTA); 296 dp.packU8(*(U8 *)&pack_shear_y, "ShearY"); 297 298 S8 twist = (S8) llround(params->getTwist() / SCALE_QUANTA); 299 dp.packU8(*(U8 *)&twist, "Twist"); 300 301 S8 twist_begin = (S8) llround(params->getTwistBegin() / SCALE_QUANTA); 302 dp.packU8(*(U8 *)&twist_begin, "TwistBegin"); 303 304 S8 radius_offset = (S8) llround(params->getRadiusOffset() / SCALE_QUANTA); 305 dp.packU8(*(U8 *)&radius_offset, "RadiusOffset"); 306 307 S8 taper_x = (S8) llround(params->getTaperX() / TAPER_QUANTA); 308 dp.packU8(*(U8 *)&taper_x, "TaperX"); 309 310 S8 taper_y = (S8) llround(params->getTaperY() / TAPER_QUANTA); 311 dp.packU8(*(U8 *)&taper_y, "TaperY"); 312 313 U8 revolutions = (U8) llround( (params->getRevolutions() - 1.0f) / REV_QUANTA); 314 dp.packU8(*(U8 *)&revolutions, "Revolutions"); 315 316 S8 skew = (S8) llround(params->getSkew() / SCALE_QUANTA); 317 dp.packU8(*(U8 *)&skew, "Skew"); 318 319 return true; 320} 321 322bool LLVolumeMessage::unpackPathParams( 323 LLPathParams* params, 324 LLMessageSystem* mesgsys, 325 char const* block_name, 326 S32 block_num) 327{ 328 U8 curve; 329 mesgsys->getU8Fast(block_name, _PREHASH_PathCurve, curve, block_num); 330 params->setCurveType(curve); 331 332 U16 begin; 333 mesgsys->getU16Fast(block_name, _PREHASH_PathBegin, begin, block_num); 334 params->setBegin((F32)(begin * CUT_QUANTA)); 335 336 U16 end; 337 mesgsys->getU16Fast(block_name, _PREHASH_PathEnd, end, block_num); 338 params->setEnd((F32)((50000 - end) * CUT_QUANTA)); 339 340 U8 pack_scale_x, pack_scale_y; 341 mesgsys->getU8Fast(block_name, _PREHASH_PathScaleX, pack_scale_x, block_num); 342 mesgsys->getU8Fast(block_name, _PREHASH_PathScaleY, pack_scale_y, block_num); 343 F32 x = (F32) (200 - pack_scale_x) * SCALE_QUANTA; 344 F32 y = (F32) (200 - pack_scale_y) * SCALE_QUANTA; 345 params->setScale( x, y ); 346 347 S8 shear_x_quant, shear_y_quant; 348 mesgsys->getS8Fast(block_name, _PREHASH_PathShearX, shear_x_quant, block_num); 349 mesgsys->getS8Fast(block_name, _PREHASH_PathShearY, shear_y_quant, block_num); 350 F32 shear_x = (F32) shear_x_quant * SHEAR_QUANTA; 351 F32 shear_y = (F32) shear_y_quant * SHEAR_QUANTA; 352 params->setShear( shear_x, shear_y ); 353 354 S8 twist; 355 mesgsys->getS8Fast(block_name, _PREHASH_PathTwist, twist, block_num ); 356 params->setTwist((F32)(twist * SCALE_QUANTA)); 357 358 S8 twist_begin; 359 mesgsys->getS8Fast(block_name, _PREHASH_PathTwistBegin, twist_begin, block_num ); 360 params->setTwistBegin((F32)(twist_begin * SCALE_QUANTA)); 361 362 S8 radius_offset; 363 mesgsys->getS8Fast(block_name, _PREHASH_PathRadiusOffset, radius_offset, block_num ); 364 params->setRadiusOffset((F32)(radius_offset * SCALE_QUANTA)); 365 366 S8 taper_x_quant, taper_y_quant; 367 mesgsys->getS8Fast(block_name, _PREHASH_PathTaperX, taper_x_quant, block_num ); 368 mesgsys->getS8Fast(block_name, _PREHASH_PathTaperY, taper_y_quant, block_num ); 369 F32 taper_x = (F32)(taper_x_quant * TAPER_QUANTA); 370 F32 taper_y = (F32)(taper_y_quant * TAPER_QUANTA); 371 params->setTaper( taper_x, taper_y ); 372 373 U8 revolutions; 374 mesgsys->getU8Fast(block_name, _PREHASH_PathRevolutions, revolutions, block_num ); 375 params->setRevolutions((F32)(revolutions * REV_QUANTA + 1.0f)); 376 377 S8 skew; 378 mesgsys->getS8Fast(block_name, _PREHASH_PathSkew, skew, block_num ); 379 params->setSkew((F32)(skew * SCALE_QUANTA)); 380 381/* 382 llinfos << "Unpacking Path Block " << block_num << llendl; 383 llinfos << "Curve: " << (U32)params->getCurve() << llendl; 384 llinfos << "Begin: " << params->getBegin() << llendl; 385 llinfos << "End: " << params->getEnd() << llendl; 386 llinfos << "Scale: " << params->getScale() << llendl; 387 llinfos << "Twist: " << params->getTwist() << llendl; 388*/ 389 390 return true; 391 392} 393 394bool LLVolumeMessage::unpackPathParams(LLPathParams* params, LLDataPacker &dp) 395{ 396 U8 value; 397 S8 svalue; 398 U16 temp_u16; 399 400 dp.unpackU8(value, "Curve"); 401 params->setCurveType( value ); 402 403 dp.unpackU16(temp_u16, "Begin"); 404 params->setBegin((F32)(temp_u16 * CUT_QUANTA)); 405 406 dp.unpackU16(temp_u16, "End"); 407 params->setEnd((F32)((50000 - temp_u16) * CUT_QUANTA)); 408 409 dp.unpackU8(value, "ScaleX"); 410 F32 x = (F32) (200 - value) * SCALE_QUANTA; 411 dp.unpackU8(value, "ScaleY"); 412 F32 y = (F32) (200 - value) * SCALE_QUANTA; 413 params->setScale( x, y ); 414 415 dp.unpackU8(value, "ShearX"); 416 svalue = *(S8 *)&value; 417 F32 shear_x = (F32) svalue * SHEAR_QUANTA; 418 dp.unpackU8(value, "ShearY"); 419 svalue = *(S8 *)&value; 420 F32 shear_y = (F32) svalue * SHEAR_QUANTA; 421 params->setShear( shear_x, shear_y ); 422 423 dp.unpackU8(value, "Twist"); 424 svalue = *(S8 *)&value; 425 params->setTwist((F32)(svalue * SCALE_QUANTA)); 426 427 dp.unpackU8(value, "TwistBegin"); 428 svalue = *(S8 *)&value; 429 params->setTwistBegin((F32)(svalue * SCALE_QUANTA)); 430 431 dp.unpackU8(value, "RadiusOffset"); 432 svalue = *(S8 *)&value; 433 params->setRadiusOffset((F32)(svalue * SCALE_QUANTA)); 434 435 dp.unpackU8(value, "TaperX"); 436 svalue = *(S8 *)&value; 437 params->setTaperX((F32)(svalue * TAPER_QUANTA)); 438 439 dp.unpackU8(value, "TaperY"); 440 svalue = *(S8 *)&value; 441 params->setTaperY((F32)(svalue * TAPER_QUANTA)); 442 443 dp.unpackU8(value, "Revolutions"); 444 params->setRevolutions((F32)(value * REV_QUANTA + 1.0f)); 445 446 dp.unpackU8(value, "Skew"); 447 svalue = *(S8 *)&value; 448 params->setSkew((F32)(svalue * SCALE_QUANTA)); 449 450 return true; 451} 452 453//============================================================================ 454 455// static 456bool LLVolumeMessage::constrainVolumeParams(LLVolumeParams& params) 457{ 458 U32 bad = 0; 459 460 // This is called immediately after an unpack. feed the raw data 461 // through the checked setters to constraint it to a valid set of 462 // volume params. 463 bad |= params.setType(params.getProfileParams().getCurveType(), 464 params.getPathParams().getCurveType()) ? 0 : 1; 465 bad |= params.setBeginAndEndS(params.getProfileParams().getBegin(), 466 params.getProfileParams().getEnd()) ? 0 : 2; 467 bad |= params.setBeginAndEndT(params.getPathParams().getBegin(), 468 params.getPathParams().getEnd()) ? 0 : 4; 469 bad |= params.setHollow(params.getProfileParams().getHollow()) ? 0 : 8; 470 bad |= params.setTwistBegin(params.getPathParams().getTwistBegin()) ? 0 : 0x10; 471 bad |= params.setTwistEnd(params.getPathParams().getTwistEnd()) ? 0 : 0x20; 472 bad |= params.setRatio(params.getPathParams().getScaleX(), 473 params.getPathParams().getScaleY()) ? 0 : 0x40; 474 bad |= params.setShear(params.getPathParams().getShearX(), 475 params.getPathParams().getShearY()) ? 0 : 0x80; 476 bad |= params.setTaper(params.getPathParams().getTaperX(), 477 params.getPathParams().getTaperY()) ? 0 : 0x100; 478 bad |= params.setRevolutions(params.getPathParams().getRevolutions()) ? 0 : 0x200; 479 bad |= params.setRadiusOffset(params.getPathParams().getRadiusOffset()) ? 0 : 0x400; 480 bad |= params.setSkew(params.getPathParams().getSkew()) ? 0 : 0x800; 481 if(bad) 482 { 483 llwarns << "LLVolumeMessage::constrainVolumeParams() - " 484 << "forced to constrain incoming volume params: " 485 << llformat("0x%04x",bad) << llendl; 486 } 487 return bad ? false : true; 488} 489 490bool LLVolumeMessage::packVolumeParams(const LLVolumeParams* params, LLMessageSystem *mesgsys) 491{ 492 // llinfos << "pack volume" << llendl; 493 if (params) 494 { 495 packPathParams(¶ms->getPathParams(), mesgsys); 496 packProfileParams(¶ms->getProfileParams(), mesgsys); 497 } 498 else 499 { 500 packPathParams(0, mesgsys); 501 packProfileParams(0, mesgsys); 502 } 503 return true; 504} 505 506bool LLVolumeMessage::packVolumeParams(const LLVolumeParams* params, LLDataPacker &dp) 507{ 508 // llinfos << "pack volume" << llendl; 509 if (params) 510 { 511 packPathParams(¶ms->getPathParams(), dp); 512 packProfileParams(¶ms->getProfileParams(), dp); 513 } 514 else 515 { 516 packPathParams(0, dp); 517 packProfileParams(0, dp); 518 } 519 return true; 520} 521 522bool LLVolumeMessage::unpackVolumeParams( 523 LLVolumeParams* params, 524 LLMessageSystem* mesgsys, 525 char const* block_name, 526 S32 block_num) 527{ 528 bool ok = true; 529 ok &= unpackPathParams( 530 ¶ms->getPathParams(), 531 mesgsys, 532 block_name, 533 block_num); 534 ok &= unpackProfileParams( 535 ¶ms->getProfileParams(), 536 mesgsys, 537 block_name, 538 block_num); 539 ok &= constrainVolumeParams(*params); 540 541 return ok; 542} 543 544bool LLVolumeMessage::unpackVolumeParams( 545 LLVolumeParams* params, 546 LLDataPacker &dp) 547{ 548 bool ok = true; 549 ok &= unpackPathParams(¶ms->getPathParams(), dp); 550 ok &= unpackProfileParams(¶ms->getProfileParams(), dp); 551 ok &= constrainVolumeParams(*params); 552 return ok; 553} 554 555//============================================================================