| 345 | } |
| 346 | |
| 347 | bool writePRT(const char* filename,const ParticlesData& p,const bool /*compressed*/,std::ostream* errorStream) |
| 348 | { |
| 349 | /// Krakatoa pukes on 0 particle files for some reason so don't export at all.... |
| 350 | int numParts = p.numParticles(); |
| 351 | if (numParts) |
| 352 | { |
| 353 | std::unique_ptr<std::ostream> output( |
| 354 | new std::ofstream(filename,std::ios::out|std::ios::binary)); |
| 355 | |
| 356 | if (!*output) { |
| 357 | if(errorStream) *errorStream <<"Partio Unable to open file "<<filename<<std::endl; |
| 358 | return false; |
| 359 | } |
| 360 | |
| 361 | FileHeadder header; |
| 362 | memcpy(header.magic, magic, sizeof(magic)); |
| 363 | memcpy(header.signature, signature, sizeof(signature)); |
| 364 | header.headersize = 0x38; |
| 365 | header.version = 1; |
| 366 | header.numParticles = p.numParticles(); |
| 367 | int reserve = 4; |
| 368 | output->write((char*)&header,sizeof(FileHeadder)); |
| 369 | write<LITEND>(*output, reserve); |
| 370 | write<LITEND>(*output, (int)p.numAttributes()); |
| 371 | reserve = 0x2c; |
| 372 | write<LITEND>(*output, reserve); |
| 373 | |
| 374 | std::vector<ParticleAttribute> attrs; |
| 375 | int offset = 0; |
| 376 | for (int i=0;i<p.numAttributes();i++) { |
| 377 | ParticleAttribute attr; |
| 378 | p.attributeInfo(i,attr); |
| 379 | Channel ch; |
| 380 | memset(&ch, 0, sizeof(Channel)); |
| 381 | memcpy((char*)ch.name, attr.name.c_str(), attr.name.size()); |
| 382 | ch.offset = offset; |
| 383 | switch (attr.type) { |
| 384 | case FLOAT: ch.type=4; ch.arity=attr.count; offset += sizeof(float)*attr.count; break; |
| 385 | case INT: ch.type=1; ch.arity=attr.count; offset += sizeof(int)*attr.count; break; |
| 386 | case VECTOR: ch.type=4; ch.arity=attr.count; offset += sizeof(float)*attr.count; break; |
| 387 | case INDEXEDSTR:; break; |
| 388 | case NONE:;break; |
| 389 | } |
| 390 | if (ch.arity) { |
| 391 | #ifdef AUTO_CASES |
| 392 | if (ch.name[0] >= 'a' && ch.name[0] <= 'z') { |
| 393 | ch.name[0] -= 0x20; |
| 394 | } |
| 395 | #endif |
| 396 | output->write((char*)&ch,sizeof(Channel)); |
| 397 | attrs.push_back(attr); |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | z_stream z; |
| 402 | z.zalloc = Z_NULL;z.zfree = Z_NULL;z.opaque = Z_NULL; |
| 403 | if (deflateInit( &z, Z_DEFAULT_COMPRESSION ) != Z_OK) { |
| 404 | if(errorStream) *errorStream<<"Zlib deflateInit error"<<std::endl; |
nothing calls this directly
no test coverage detected