| 518 | //========================================================stack_blur_rgb24 |
| 519 | template<class Img> |
| 520 | void stack_blur_rgb24(Img& img, unsigned rx, unsigned ry) |
| 521 | { |
| 522 | typedef typename Img::color_type color_type; |
| 523 | typedef typename Img::order_type order_type; |
| 524 | enum order_e |
| 525 | { |
| 526 | R = order_type::R, |
| 527 | G = order_type::G, |
| 528 | B = order_type::B |
| 529 | }; |
| 530 | |
| 531 | unsigned x, y, xp, yp, i; |
| 532 | unsigned stack_ptr; |
| 533 | unsigned stack_start; |
| 534 | |
| 535 | const int8u* src_pix_ptr; |
| 536 | int8u* dst_pix_ptr; |
| 537 | color_type* stack_pix_ptr; |
| 538 | |
| 539 | unsigned sum_r; |
| 540 | unsigned sum_g; |
| 541 | unsigned sum_b; |
| 542 | unsigned sum_in_r; |
| 543 | unsigned sum_in_g; |
| 544 | unsigned sum_in_b; |
| 545 | unsigned sum_out_r; |
| 546 | unsigned sum_out_g; |
| 547 | unsigned sum_out_b; |
| 548 | |
| 549 | unsigned w = img.width(); |
| 550 | unsigned h = img.height(); |
| 551 | unsigned wm = w - 1; |
| 552 | unsigned hm = h - 1; |
| 553 | |
| 554 | unsigned div; |
| 555 | unsigned mul_sum; |
| 556 | unsigned shr_sum; |
| 557 | |
| 558 | pod_vector<color_type> stack; |
| 559 | |
| 560 | if(rx > 0) |
| 561 | { |
| 562 | if(rx > 254) rx = 254; |
| 563 | div = rx * 2 + 1; |
| 564 | mul_sum = stack_blur_tables<int>::g_stack_blur8_mul[rx]; |
| 565 | shr_sum = stack_blur_tables<int>::g_stack_blur8_shr[rx]; |
| 566 | stack.allocate(div); |
| 567 | |
| 568 | for(y = 0; y < h; y++) |
| 569 | { |
| 570 | sum_r = |
| 571 | sum_g = |
| 572 | sum_b = |
| 573 | sum_in_r = |
| 574 | sum_in_g = |
| 575 | sum_in_b = |
| 576 | sum_out_r = |
| 577 | sum_out_g = |