elene@3: #include <imago2.h>
elene@3: 
elene@3: #include "image.h"
elene@3: 
elene@3: Image::Image()
elene@3: {
elene@3: 	pixels = 0;
elene@3: 	width = 0;
elene@3: 	height = 0;
elene@3: }
elene@3: 
elene@3: Image::~Image()
elene@3: {
elene@3: 	delete [] pixels;
elene@3: }
elene@3: 
elene@4: //copy constructor - assignment operator
elene@4: Image::Image(const Image &img)
elene@4: {
elene@4: 	pixels = 0;
elene@4: 	set_pixels(img.pixels, img.width, img.height);
elene@4: }
elene@4: 
elene@4: Image &Image::operator = (const Image &img)
elene@4: {
elene@4: 	if(&img != this) {
elene@4: 		set_pixels(img.pixels, img.width, img.height);
elene@4: 	}
elene@4: 	return *this;
elene@4: }
elene@4: 
elene@4: //move constructor - move operator c++11 R-value reference to image
elene@4: Image::Image(Image &&img)
elene@4: {
elene@4: 	pixels = img.pixels;
elene@4: 	width = img.width;
elene@4: 	height = img.height;
elene@4: 
elene@4: 	img.pixels = 0;
elene@4: 	img.width = 0;
elene@4: 	img.height = 0;
elene@4: }
elene@4: 
elene@4: Image &Image::operator = (Image &&img)
elene@4: {
elene@4: 	if(&img != this) {
elene@4: 		pixels = img.pixels;
elene@4: 		width = img.width;
elene@4: 		height = img.height;
elene@4: 
elene@4: 		img.pixels = 0;
elene@4: 		img.width = 0;
elene@4: 		img.height = 0;
elene@4: 	}
elene@4: 
elene@4: 	return *this;
elene@4: }
elene@4: 
elene@3: bool Image::load(const char *fname)
elene@3: {
elene@3: 	int new_width, new_height;
elene@3: 	float *new_pixels = (float*)img_load_pixels(fname, &new_width, &new_height, IMG_FMT_GREYF);
elene@3: 
elene@3: 	if(!new_pixels) {
elene@3: 		fprintf(stderr, "Failed to load image: %s\n", fname);
elene@3: 		return false;
elene@3: 	}
elene@3: 
elene@3: 	set_pixels(new_pixels, new_width, new_height);
elene@3: 	img_free_pixels(new_pixels);
elene@3: 	return true;
elene@3: }
elene@3: 
elene@3: float *Image::get_pixels()
elene@3: {
elene@3: 	return pixels;
elene@3: }
elene@3: 
elene@3: const float *Image::get_pixels() const
elene@3: {
elene@3: 	return pixels;
elene@3: }
elene@3: 
elene@3: void Image::set_pixels(const float *pixels, int width, int height)
elene@3: {
elene@3: 	if(!pixels)
elene@3: 		return;
elene@3: 
elene@3: 	delete [] this->pixels;
elene@3: 
elene@3: 	this->pixels = new float[width * height];
elene@3: 	for(int i=0; i<width * height; i++) {
elene@3: 		this->pixels[i] = pixels[i];
elene@3: 	}
elene@3: 	this->width = width;
elene@3: 	this->height = height;
elene@3: }
elene@3: 
elene@3: int Image::get_width() const
elene@3: {
elene@3: 	return width;
elene@3: }
elene@3: 
elene@3: int Image::get_height() const
elene@3: {
elene@3: 	return height;
elene@3: }