| 482 |
|
for (ti[1] = 0; ti[1] < tileGrid[1]; ti[1]++) |
| 483 |
|
for (ti[0] = 0; ti[0] < tileGrid[0]; ti[0]++) |
| 484 |
|
cnt += renderable_tile(tile_p(ti)); |
| 485 |
< |
if (!cnt) { // nothing left to do? |
| 486 |
< |
error(WARNING, "output appears to be complete, nothing added"); |
| 487 |
< |
return true; |
| 488 |
< |
} |
| 485 |
> |
if (!cnt) |
| 486 |
> |
return false; // parent can do nothing |
| 487 |
|
if (cnt < nproc) { |
| 488 |
|
sprintf(errmsg, "only %d renderable tiles, reducing process count", cnt); |
| 489 |
|
error(WARNING, errmsg); |
| 598 |
|
|
| 599 |
|
const bool newOutput = (access(pout, F_OK) < 0); |
| 600 |
|
FILE *pdfp[2]; |
| 601 |
< |
if (!newOutput) { // output exists? |
| 601 |
> |
if (newOutput) { // new output file? |
| 602 |
> |
CHECK((tileGrid[0] <= 1) & (tileGrid[1] <= 1), |
| 603 |
> |
USER, "bad tiling specification"); |
| 604 |
> |
} else { |
| 605 |
|
dt = myRPmanager.ReopenOutput(pdfp, pout, zout); |
| 606 |
|
if (dt == RDTnone) |
| 607 |
|
quit(1); |
| 608 |
|
if (!fscnresolu(&hresolu, &vresolu, pdfp[0])) |
| 609 |
|
error(USER, "missing picture resolution"); |
| 610 |
+ |
pixaspect = .0; // need to leave this as is |
| 611 |
|
myRPmanager.NewHeader(pout); // get prev. header info |
| 612 |
|
const char * tval = myRPmanager.GetHeadStr("TILED="); |
| 613 |
|
if (tval) sscanf(tval, "%d %d", &tileGrid[0], &tileGrid[1]); |
| 614 |
< |
if (!myRPmanager.GetView()) { |
| 615 |
< |
sprintf(errmsg, "missing view in picture file '%s'", pout); |
| 614 |
< |
error(USER, errmsg); |
| 615 |
< |
} |
| 614 |
> |
CHECK(myRPmanager.GetView()==NULL, |
| 615 |
> |
USER, "missing view in picture file"); |
| 616 |
|
ourview = *myRPmanager.GetView(); |
| 617 |
|
} |
| 618 |
|
int hvdim[2] = {hresolu, vresolu}; // set up tiled frame |
| 654 |
|
if (pmlen&7) pmlen += 8 - (pmlen&7); // 8-byte alignment to be safe |
| 655 |
|
pmlen += sizeof(TileProg)*tileGrid[0]*tileGrid[1]; |
| 656 |
|
// map picture file to memory |
| 657 |
< |
if (ftruncate(fileno(pdfp[0]), pmlen) < 0) |
| 657 |
> |
if (newOutput && ftruncate(fileno(pdfp[0]), pmlen) < 0) |
| 658 |
|
error(SYSTEM, "cannot extend picture buffer"); |
| 659 |
|
uby8 * pixMap = (uby8 *)mmap(NULL, pmlen, PROT_READ|PROT_WRITE, |
| 660 |
|
MAP_SHARED, fileno(pdfp[0]), 0); |
| 667 |
|
const size_t zmlen = zdata_beg + zdpSiz*hresolu*vresolu; |
| 668 |
|
uby8 * zdMap = NULL; |
| 669 |
|
if (RDTdepthT(dt)) { |
| 670 |
< |
if (ftruncate(fileno(pdfp[1]), zmlen) < 0) |
| 670 |
> |
if (newOutput && ftruncate(fileno(pdfp[1]), zmlen) < 0) |
| 671 |
|
error(SYSTEM, "cannot extend depth buffer"); |
| 672 |
|
zdMap = (uby8 *)mmap(NULL, zmlen, PROT_READ|PROT_WRITE, |
| 673 |
|
MAP_SHARED, fileno(pdfp[1]), 0); |
| 682 |
|
if (children_finished()) // work done in children? |
| 683 |
|
return dt; |
| 684 |
|
|
| 685 |
< |
int ti[2]; // else render tiles |
| 685 |
> |
int ndone = 0; // else render tiles |
| 686 |
> |
int ti[2]; |
| 687 |
|
while (nexttile(ti)) { |
| 688 |
|
const int offset = (tileGrid[1]-1-ti[1])*myRPmanager.GetWidth()*myRPmanager.THeight() + |
| 689 |
|
(myRPmanager.THeight()-1)*myRPmanager.GetWidth() + |
| 715 |
|
error(USER, errmsg); |
| 716 |
|
} |
| 717 |
|
tile_p(ti)->status = 1; // mark tile completed |
| 718 |
+ |
ndone++; |
| 719 |
|
} |
| 720 |
+ |
if (!ndone) |
| 721 |
+ |
error(WARNING, "no tiles need rendering, exit"); |
| 722 |
|
/* |
| 723 |
|
munmap(pixMap, pmlen); // technically unnecessary... |
| 724 |
|
if (zdMap) munmap(zdMap, zmlen); |
