nuclear@0: #include <string.h>
nuclear@0: #include "imago2.h"
nuclear@0: #include "image.h"
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: Image<T>::Image()
nuclear@0: {
nuclear@0: 	pixels = 0;
nuclear@0: 	own_pixels = true;
nuclear@0: 	width = height = 0;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: Image<T>::~Image()
nuclear@0: {
nuclear@0: 	destroy();
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: Image<T>::Image(const Image<T> &img)
nuclear@0: {
nuclear@0: 	pixels = 0;
nuclear@0: 	own_pixels = false;
nuclear@0: 
nuclear@0: 	create(img.width, img.height, img.pixels);
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: Image<T> &Image<T>::operator =(const Image<T> &img)
nuclear@0: {
nuclear@0: 	if(this != &img) {
nuclear@0: 		destroy();
nuclear@0: 		create(img.width, img.height, img.pixels);
nuclear@0: 	}
nuclear@0: 	return *this;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: Image<T>::Image(const Image<T> &&img)
nuclear@0: {
nuclear@0: 	width = img.width;
nuclear@0: 	height = img.height;
nuclear@0: 	pixels = img.pixels;
nuclear@0: 	own_pixels = img.own_pixels;
nuclear@0: 
nuclear@0: 	img.pixels = 0;
nuclear@0: 	img.width = img.height = 0;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: Image<T> &&Image<T>::operator =(const Image<T> &&img)
nuclear@0: {
nuclear@0: 	if(this != &img) {
nuclear@0: 		width = img.width;
nuclear@0: 		height = img.height;
nuclear@0: 		pixels = img.pixels;
nuclear@0: 		own_pixels = img.own_pixels;
nuclear@0: 
nuclear@0: 		img.pixels = 0;
nuclear@0: 		img.width = img.height = 0;
nuclear@0: 	}
nuclear@0: 	return *this;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: void Image<T>::create(int xsz, int ysz, const T *pixels)
nuclear@0: {
nuclear@0: 	destroy();
nuclear@0: 
nuclear@0: 	this->pixels = new T[xsz * ysz * 4];
nuclear@0: 	if(pixels) {
nuclear@0: 		memcpy(this->pixels, pixels, xsz * ysz * 4 * sizeof(T));
nuclear@0: 	} else {
nuclear@0: 		memset(this->pixels, 0, xsz * ysz * 4 * sizeof(T));
nuclear@0: 	}
nuclear@0: 	width = xsz;
nuclear@0: 	height = ysz;
nuclear@0: 	own_pixels = true;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: void Image<T>::destroy()
nuclear@0: {
nuclear@0: 	if(own_pixels) {
nuclear@0: 		delete [] pixels;
nuclear@0: 	}
nuclear@0: 	pixels = 0;
nuclear@0: 	width = height = 0;
nuclear@0: 	own_pixels = true;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: int Image<T>::get_width() const
nuclear@0: {
nuclear@0: 	return width;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: int Image<T>::get_height() const
nuclear@0: {
nuclear@0: 	return height;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: void Image<T>::set_pixels(int xsz, int ysz, T *pixels)
nuclear@0: {
nuclear@0: 	destroy();
nuclear@0: 
nuclear@0: 	this->pixels = pixels;
nuclear@0: 	width = xsz;
nuclear@0: 	height = ysz;
nuclear@0: 	own_pixels = false;
nuclear@0: }
nuclear@0: 
nuclear@0: template <typename T>
nuclear@0: T *Image<T>::get_pixels() const
nuclear@0: {
nuclear@0: 	return pixels;
nuclear@0: }
nuclear@0: 
nuclear@2: template <typename T>
nuclear@26: void Image<T>::clear()
nuclear@26: {
nuclear@26: 	memset(pixels, 0, width * height * 4 * sizeof(T));
nuclear@26: }
nuclear@26: 
nuclear@26: template <typename T>
nuclear@2: inline bool load_image(Image<T> *img, const char *fname)
nuclear@2: {
nuclear@2: 	return false;
nuclear@2: }
nuclear@2: 
nuclear@2: template <>
nuclear@2: inline bool load_image<unsigned char>(Image<unsigned char> *img, const char *fname)
nuclear@0: {
nuclear@0: 	int xsz, ysz;
nuclear@0: 	unsigned char *pix = (unsigned char*)img_load_pixels(fname, &xsz, &ysz, IMG_FMT_RGBA32);
nuclear@0: 	if(!pix) {
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@0: 
nuclear@2: 	img->create(xsz, ysz, pix);
nuclear@2: 	img_free_pixels(pix);
nuclear@0: 	return true;
nuclear@0: }
nuclear@0: 
nuclear@2: template <>
nuclear@2: inline bool load_image<float>(Image<float> *img, const char *fname)
nuclear@0: {
nuclear@0: 	int xsz, ysz;
nuclear@0: 	float *pix = (float*)img_load_pixels(fname, &xsz, &ysz, IMG_FMT_RGBAF);
nuclear@0: 	if(!pix) {
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@0: 
nuclear@2: 	img->create(xsz, ysz, pix);
nuclear@2: 	img_free_pixels(pix);
nuclear@0: 	return true;
nuclear@2: }
nuclear@2: 
nuclear@2: template <typename T>
nuclear@2: bool Image<T>::load(const char *fname)
nuclear@2: {
nuclear@2: 	return load_image(this, fname);
nuclear@2: }