volmetrics
annotate src/image.cc @ 3:927c29b93009
added image.cc
| author | Eleni Maria Stea <elene.mst@gmail.com> |
|---|---|
| date | Sat, 11 Jan 2014 22:55:27 +0200 |
| parents | |
| children | 1fbbe10c8e08 |
| rev | line source |
|---|---|
| elene@3 | 1 #include <imago2.h> |
| elene@3 | 2 |
| elene@3 | 3 #include "image.h" |
| elene@3 | 4 |
| elene@3 | 5 Image::Image() |
| elene@3 | 6 { |
| elene@3 | 7 pixels = 0; |
| elene@3 | 8 width = 0; |
| elene@3 | 9 height = 0; |
| elene@3 | 10 } |
| elene@3 | 11 |
| elene@3 | 12 Image::~Image() |
| elene@3 | 13 { |
| elene@3 | 14 delete [] pixels; |
| elene@3 | 15 } |
| elene@3 | 16 |
| elene@3 | 17 bool Image::load(const char *fname) |
| elene@3 | 18 { |
| elene@3 | 19 int new_width, new_height; |
| elene@3 | 20 float *new_pixels = (float*)img_load_pixels(fname, &new_width, &new_height, IMG_FMT_GREYF); |
| elene@3 | 21 |
| elene@3 | 22 if(!new_pixels) { |
| elene@3 | 23 fprintf(stderr, "Failed to load image: %s\n", fname); |
| elene@3 | 24 return false; |
| elene@3 | 25 } |
| elene@3 | 26 |
| elene@3 | 27 set_pixels(new_pixels, new_width, new_height); |
| elene@3 | 28 img_free_pixels(new_pixels); |
| elene@3 | 29 return true; |
| elene@3 | 30 } |
| elene@3 | 31 |
| elene@3 | 32 float *Image::get_pixels() |
| elene@3 | 33 { |
| elene@3 | 34 return pixels; |
| elene@3 | 35 } |
| elene@3 | 36 |
| elene@3 | 37 const float *Image::get_pixels() const |
| elene@3 | 38 { |
| elene@3 | 39 return pixels; |
| elene@3 | 40 } |
| elene@3 | 41 |
| elene@3 | 42 void Image::set_pixels(const float *pixels, int width, int height) |
| elene@3 | 43 { |
| elene@3 | 44 if(!pixels) |
| elene@3 | 45 return; |
| elene@3 | 46 |
| elene@3 | 47 delete [] this->pixels; |
| elene@3 | 48 |
| elene@3 | 49 this->pixels = new float[width * height]; |
| elene@3 | 50 for(int i=0; i<width * height; i++) { |
| elene@3 | 51 this->pixels[i] = pixels[i]; |
| elene@3 | 52 } |
| elene@3 | 53 this->width = width; |
| elene@3 | 54 this->height = height; |
| elene@3 | 55 } |
| elene@3 | 56 |
| elene@3 | 57 int Image::get_width() const |
| elene@3 | 58 { |
| elene@3 | 59 return width; |
| elene@3 | 60 } |
| elene@3 | 61 |
| elene@3 | 62 int Image::get_height() const |
| elene@3 | 63 { |
| elene@3 | 64 return height; |
| elene@3 | 65 } |