glviewvol

annotate src/image.cc @ 15:2a67ea257ac0

makefile fixes for macosx
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 06 Feb 2015 23:47:28 +0200
parents 32c4a7160350
children
rev   line source
nuclear@12 1 /*
nuclear@12 2 glviewvol is an OpenGL 3D volume data viewer
nuclear@12 3 Copyright (C) 2014 John Tsiombikas <nuclear@member.fsf.org>
nuclear@12 4
nuclear@12 5 This program is free software: you can redistribute it and/or modify
nuclear@12 6 it under the terms of the GNU General Public License as published by
nuclear@12 7 the Free Software Foundation, either version 3 of the License, or
nuclear@12 8 (at your option) any later version.
nuclear@12 9
nuclear@12 10 This program is distributed in the hope that it will be useful,
nuclear@12 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@12 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nuclear@12 13 GNU General Public License for more details.
nuclear@12 14
nuclear@12 15 You should have received a copy of the GNU General Public License
nuclear@12 16 along with this program. If not, see <http://www.gnu.org/licenses/>.
nuclear@12 17 */
nuclear@1 18 #include <string.h>
nuclear@0 19 #include <imago2.h>
nuclear@0 20 #include "image.h"
nuclear@0 21
nuclear@0 22 Image::Image()
nuclear@0 23 {
nuclear@0 24 width = height = 0;
nuclear@0 25 pixels = 0;
nuclear@0 26 }
nuclear@0 27
nuclear@3 28 void Image::destroy()
nuclear@0 29 {
nuclear@0 30 delete [] pixels;
nuclear@0 31 }
nuclear@0 32
nuclear@0 33 bool Image::set_pixels(int x, int y, float *data)
nuclear@0 34 {
nuclear@0 35 float *new_pixels;
nuclear@0 36 try {
nuclear@0 37 new_pixels = new float[x * y];
nuclear@0 38 }
nuclear@0 39 catch(...) {
nuclear@0 40 return false;
nuclear@0 41 }
nuclear@0 42
nuclear@0 43 width = x;
nuclear@0 44 height = y;
nuclear@0 45
nuclear@0 46 delete [] pixels;
nuclear@0 47 pixels = new_pixels;
nuclear@0 48
nuclear@0 49 if(data) {
nuclear@0 50 memcpy(pixels, data, x * y * sizeof *data);
nuclear@0 51 }
nuclear@0 52 return true;
nuclear@0 53 }
nuclear@0 54
nuclear@0 55 bool Image::load(const char *fname)
nuclear@0 56 {
nuclear@0 57 // TODO dicom loader ... ?
nuclear@0 58
nuclear@0 59 int x, y;
nuclear@1 60 float *pixels = (float*)img_load_pixels(fname, &x, &y, IMG_FMT_GREYF);
nuclear@0 61 if(!pixels) {
nuclear@0 62 return false;
nuclear@0 63 }
nuclear@0 64 bool res = set_pixels(x, y, pixels);
nuclear@0 65 img_free_pixels(pixels);
nuclear@0 66 return res;
nuclear@0 67 }