nuclear@2: #include <string.h>
nuclear@2: #include "imago2.h"
nuclear@2: #include "image.h"
nuclear@2: 
nuclear@2: Image::Image()
nuclear@2: {
nuclear@2: 	pixels = 0;
nuclear@2: 	own_pixels = true;
nuclear@2: 	width = height = 0;
nuclear@2: }
nuclear@2: 
nuclear@2: Image::~Image()
nuclear@2: {
nuclear@2: 	destroy();
nuclear@2: }
nuclear@2: 
nuclear@2: Image::Image(const Image &img)
nuclear@2: {
nuclear@2: 	pixels = 0;
nuclear@2: 	own_pixels = false;
nuclear@2: 
nuclear@2: 	create(img.width, img.height, img.pixels);
nuclear@2: }
nuclear@2: 
nuclear@2: Image &Image::operator =(const Image &img)
nuclear@2: {
nuclear@2: 	if(this != &img) {
nuclear@2: 		destroy();
nuclear@2: 		create(img.width, img.height, img.pixels);
nuclear@2: 	}
nuclear@2: 	return *this;
nuclear@2: }
nuclear@2: 
nuclear@2: void Image::create(int xsz, int ysz, unsigned char *pixels)
nuclear@2: {
nuclear@2: 	destroy();
nuclear@2: 
nuclear@2: 	this->pixels = new unsigned char[xsz * ysz * 4];
nuclear@2: 	if(pixels) {
nuclear@2: 		memcpy(this->pixels, pixels, xsz * ysz * 4);
nuclear@2: 	} else {
nuclear@2: 		memset(this->pixels, 0, xsz * ysz * 4);
nuclear@2: 	}
nuclear@2: 	width = xsz;
nuclear@2: 	height = ysz;
nuclear@2: 	own_pixels = true;
nuclear@2: }
nuclear@2: 
nuclear@2: void Image::destroy()
nuclear@2: {
nuclear@2: 	if(own_pixels) {
nuclear@2: 		delete [] pixels;
nuclear@2: 	}
nuclear@2: 	pixels = 0;
nuclear@2: 	width = height = 0;
nuclear@2: 	own_pixels = true;
nuclear@2: }
nuclear@2: 
nuclear@2: int Image::get_width() const
nuclear@2: {
nuclear@2: 	return width;
nuclear@2: }
nuclear@2: 
nuclear@2: int Image::get_height() const
nuclear@2: {
nuclear@2: 	return height;
nuclear@2: }
nuclear@2: 
nuclear@2: void Image::set_pixels(int xsz, int ysz, unsigned char *pixels)
nuclear@2: {
nuclear@2: 	destroy();
nuclear@2: 
nuclear@2: 	this->pixels = pixels;
nuclear@2: 	width = xsz;
nuclear@2: 	height = ysz;
nuclear@2: 	own_pixels = false;
nuclear@2: }
nuclear@2: 
nuclear@2: unsigned char *Image::get_pixels() const
nuclear@2: {
nuclear@2: 	return pixels;
nuclear@2: }
nuclear@2: 
nuclear@2: bool Image::load(const char *fname)
nuclear@2: {
nuclear@2: 	int xsz, ysz;
nuclear@2: 	unsigned char *pix = (unsigned char*)img_load_pixels(fname, &xsz, &ysz);
nuclear@2: 	if(!pix) {
nuclear@2: 		return false;
nuclear@2: 	}
nuclear@2: 
nuclear@2: 	create(xsz, ysz, pix);
nuclear@2: 	return true;
nuclear@2: }