glviewvol: src/image.cc annotate

glviewvol

foo

author	John Tsiombikas <nuclear@member.fsf.org>
date	Sat, 27 Dec 2014 06:32:28 +0200
parents	7bdf40403b9c
children	32c4a7160350

rev	line source
nuclear@1	1 #include <string.h>
nuclear@0	2 #include <imago2.h>
nuclear@0	3 #include "image.h"
nuclear@0	4
nuclear@0	5 Image::Image()
nuclear@0	6 {
nuclear@0	7 width = height = 0;
nuclear@0	8 pixels = 0;
nuclear@0	9 }
nuclear@0	10
nuclear@0	11 Image::~Image()
nuclear@0	12 {
nuclear@0	13 delete [] pixels;
nuclear@0	14 }
nuclear@0	15
nuclear@0	16 bool Image::set_pixels(int x, int y, float *data)
nuclear@0	17 {
nuclear@0	18 float *new_pixels;
nuclear@0	19 try {
nuclear@0	20 new_pixels = new float[x * y];
nuclear@0	21 }
nuclear@0	22 catch(...) {
nuclear@0	23 return false;
nuclear@0	24 }
nuclear@0	25
nuclear@0	26 width = x;
nuclear@0	27 height = y;
nuclear@0	28
nuclear@0	29 delete [] pixels;
nuclear@0	30 pixels = new_pixels;
nuclear@0	31
nuclear@0	32 if(data) {
nuclear@0	33 memcpy(pixels, data, x * y * sizeof *data);
nuclear@0	34 }
nuclear@0	35 return true;
nuclear@0	36 }
nuclear@0	37
nuclear@0	38 bool Image::load(const char *fname)
nuclear@0	39 {
nuclear@0	40 // TODO dicom loader ... ?
nuclear@0	41
nuclear@0	42 int x, y;
nuclear@1	43 float pixels = (float)img_load_pixels(fname, &x, &y, IMG_FMT_GREYF);
nuclear@0	44 if(!pixels) {
nuclear@0	45 return false;
nuclear@0	46 }
nuclear@0	47 bool res = set_pixels(x, y, pixels);
nuclear@0	48 img_free_pixels(pixels);
nuclear@0	49 return res;
nuclear@0	50 }