| 457 | } |
| 458 | |
| 459 | void vtkOpenGLFramebufferObject::UpdateSize() |
| 460 | { |
| 461 | bool foundSize = false; |
| 462 | int size[2]; |
| 463 | int aSize[2]; |
| 464 | bool mismatch = false; |
| 465 | |
| 466 | size[0] = 0; |
| 467 | size[1] = 0; |
| 468 | aSize[0] = 0; |
| 469 | aSize[1] = 0; |
| 470 | |
| 471 | // loop through all attachments and |
| 472 | // verify they are of the same size. |
| 473 | for (foIter i = this->ColorBuffers.begin(); i != this->ColorBuffers.end(); ++i) |
| 474 | { |
| 475 | if (!i->second->CreatedByFO && i->second->IsSet()) |
| 476 | { |
| 477 | i->second->GetSize(aSize); |
| 478 | if (!foundSize) |
| 479 | { |
| 480 | size[0] = aSize[0]; |
| 481 | size[1] = aSize[1]; |
| 482 | foundSize = true; |
| 483 | } |
| 484 | else |
| 485 | { |
| 486 | if (aSize[0] != size[0] || aSize[1] != size[1]) |
| 487 | { |
| 488 | mismatch = true; |
| 489 | } |
| 490 | } |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | if (!this->DepthBuffer->CreatedByFO && this->DepthBuffer->IsSet()) |
| 495 | { |
| 496 | this->DepthBuffer->GetSize(aSize); |
| 497 | if (!foundSize) |
| 498 | { |
| 499 | size[0] = aSize[0]; |
| 500 | size[1] = aSize[1]; |
| 501 | foundSize = true; |
| 502 | } |
| 503 | else |
| 504 | { |
| 505 | if (aSize[0] != size[0] || aSize[1] != size[1]) |
| 506 | { |
| 507 | mismatch = true; |
| 508 | } |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | if (mismatch) |
| 513 | { |
| 514 | vtkErrorMacro("The framebuffer has mismatched attachments."); |
| 515 | } |
| 516 | |