diff options
Diffstat (limited to 'src/GipfelWidget.cxx')
| -rw-r--r-- | src/GipfelWidget.cxx | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/src/GipfelWidget.cxx b/src/GipfelWidget.cxx index e6e2087..d737a0f 100644 --- a/src/GipfelWidget.cxx +++ b/src/GipfelWidget.cxx @@ -684,21 +684,18 @@ GipfelWidget::get_pixel(GipfelWidget::sample_mode_t m, double px, py; int ret; - if (img == NULL) { + if (img == NULL) return 1; - } - if (pan->get_coordinates(a_alph, a_nick, &px, &py) != 0) { + if (pan->get_coordinates(a_alph, a_nick, &px, &py) != 0) return 1; - } - if (m == GipfelWidget::BICUBIC) { + if (m == GipfelWidget::BICUBIC) ret = get_pixel_bicubic(img, px + ((double) img->w()) / 2.0, py + ((double) img->h()) / 2.0, r, g, b); - } else { + else ret = get_pixel_nearest(img, px + ((double) img->w()) / 2.0, py + ((double) img->h()) / 2.0, r, g, b); - } return ret; } @@ -706,11 +703,11 @@ GipfelWidget::get_pixel(GipfelWidget::sample_mode_t m, int GipfelWidget::get_pixel_nearest(Fl_Image *img, double x, double y, int *r, int *g, int *b) { - if (isnan(x) || isnan(y)) { + + if (isnan(x) || isnan(y)) return 1; - } else { + else return get_pixel(img, (int) rint(x), (int) rint(y), r, g, b); - } } static inline double @@ -739,19 +736,17 @@ GipfelWidget::get_pixel_bicubic(Fl_Image *img, double x, double y, for (int iy = 0; iy < 4; iy++) { for (int ix = 0; ix < 4; ix++) { + if (get_pixel(img, (int) fl_x + ix - 1, (int) fl_y + iy - 1, - &ic[0], &ic[1], &ic[2]) != 0) { + &ic[0], &ic[1], &ic[2]) != 0) return 1; - } - for (int l = 0; l < 3; l++) { + for (int l = 0; l < 3; l++) c[l][ix] = (double) ic[l]; - } } - for (int l = 0; l < 3; l++) { + for (int l = 0; l < 3; l++) c1[l][iy] = interp_cubic(dx, dx2, dx3, c[l]); - } } *r = (int) rint(interp_cubic(dy, dy2, dy3, c1[0])); |