| … | |
… | |
| 635 | nv rmin[2], rmax[2]; |
635 | nv rmin[2], rmax[2]; |
| 636 | |
636 | |
| 637 | for (int i = 0; i < 2; ++i) |
637 | for (int i = 0; i < 2; ++i) |
| 638 | { |
638 | { |
| 639 | nv v; |
639 | nv v; |
|
|
640 | |
| 640 | v = mat_apply (matrix, i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
641 | v = mat_apply (matrix, i, 0+x, 0+y); rmin [i] = rmax [i] = v; |
| 641 | v = mat_apply (matrix, i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
642 | v = mat_apply (matrix, i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
| 642 | v = mat_apply (matrix, i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
643 | v = mat_apply (matrix, i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
| 643 | v = mat_apply (matrix, i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
644 | v = mat_apply (matrix, i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
| 644 | } |
645 | } |
| 645 | |
646 | |
|
|
647 | // TODO: adjust matrix for subpixel accuracy |
| 646 | int dx = floor (rmin [0]); |
648 | int dx = floor (rmin [0]); |
| 647 | int dy = floor (rmin [1]); |
649 | int dy = floor (rmin [1]); |
| 648 | |
650 | |
| 649 | int new_width = ceil (rmax [0] - dx); |
651 | int new_width = ceil (rmax [0] - dx); |
| 650 | int new_height = ceil (rmax [1] - dy); |
652 | int new_height = ceil (rmax [1] - dy); |
