glviewvol: src/image.cc annotate

glviewvol

dicom viewer project underway

author	John Tsiombikas <nuclear@member.fsf.org>
date	Sat, 27 Dec 2014 02:35:58 +0200
parents
children	cc9e0d8590e2

rev	line source
nuclear@0	1 #include <imago2.h>
nuclear@0	2 #include "image.h"
nuclear@0	3
nuclear@0	4 Image::Image()
nuclear@0	5 {
nuclear@0	6 width = height = 0;
nuclear@0	7 pixels = 0;
nuclear@0	8 }
nuclear@0	9
nuclear@0	10 Image::~Image()
nuclear@0	11 {
nuclear@0	12 delete [] pixels;
nuclear@0	13 }
nuclear@0	14
nuclear@0	15 bool Image::set_pixels(int x, int y, float *data)
nuclear@0	16 {
nuclear@0	17 float *new_pixels;
nuclear@0	18 try {
nuclear@0	19 new_pixels = new float[x * y];
nuclear@0	20 }
nuclear@0	21 catch(...) {
nuclear@0	22 return false;
nuclear@0	23 }
nuclear@0	24
nuclear@0	25 width = x;
nuclear@0	26 height = y;
nuclear@0	27
nuclear@0	28 delete [] pixels;
nuclear@0	29 pixels = new_pixels;
nuclear@0	30
nuclear@0	31 if(data) {
nuclear@0	32 memcpy(pixels, data, x * y * sizeof *data);
nuclear@0	33 }
nuclear@0	34 return true;
nuclear@0	35 }
nuclear@0	36
nuclear@0	37 bool Image::load(const char *fname)
nuclear@0	38 {
nuclear@0	39 // TODO dicom loader ... ?
nuclear@0	40
nuclear@0	41 int x, y;
nuclear@0	42 float *pixels = img_load_pixels(fname, &x, &y, IMG_FMT_GREYF);
nuclear@0	43 if(!pixels) {
nuclear@0	44 return false;
nuclear@0	45 }
nuclear@0	46 bool res = set_pixels(x, y, pixels);
nuclear@0	47 img_free_pixels(pixels);
nuclear@0	48 return res;
nuclear@0	49 }