nuclear@0: #include <stdio.h>
nuclear@0: #include <string.h>
nuclear@0: #include <errno.h>
nuclear@0: #include "image.h"
nuclear@0: #include "material.h"
nuclear@0: #include <imago2.h>
nuclear@0: 
nuclear@0: Image::Image()
nuclear@0: {
nuclear@0: 	pixels = 0;
nuclear@0: 	xsz = ysz = 0;
nuclear@0: }
nuclear@0: 
nuclear@0: Image::Image(int xsz, int ysz)
nuclear@0: {
nuclear@0: 	pixels = 0;
nuclear@0: 	set_pixels(xsz, ysz, 0);
nuclear@0: }
nuclear@0: 
nuclear@0: Image::~Image()
nuclear@0: {
nuclear@0: 	delete [] pixels;
nuclear@0: }
nuclear@0: 
nuclear@0: void Image::set_pixels(int xsz, int ysz, const Color *pix)
nuclear@0: {
nuclear@0: 	delete [] pixels;
nuclear@0: 
nuclear@0: 	pixels = new Color[xsz * ysz];
nuclear@0: 	this->xsz = xsz;
nuclear@0: 	this->ysz = ysz;
nuclear@0: 
nuclear@0: 	if(pix) {
nuclear@0: 		memcpy(pixels, pix, xsz * ysz * sizeof *pixels);
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@0: bool Image::load(const char *fname)
nuclear@0: {
nuclear@0: 	int xsz, ysz;
nuclear@0: 	Color *img = (Color*)img_load_pixels(fname, &xsz, &ysz, IMG_FMT_RGBF);
nuclear@0: 	if(!img) {
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	/* convert the pixels to linear color space */
nuclear@0: 	for(int i=0; i<xsz*ysz; i++) {
nuclear@0: 		img[i].x = pow(img[i].x, 2.2);
nuclear@0: 		img[i].y = pow(img[i].y, 2.2);
nuclear@0: 		img[i].z = pow(img[i].z, 2.2);
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	set_pixels(xsz, ysz, img);
nuclear@0: 	img_free_pixels(img);
nuclear@0: 	return true;
nuclear@0: }
nuclear@0: 
nuclear@0: 
nuclear@0: bool Image::save(const char *fname) const
nuclear@0: {
nuclear@0: 	if(!pixels) {
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	if(img_save_pixels(fname, pixels, xsz, ysz, IMG_FMT_RGBAF) == -1) {
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@0: 	return true;
nuclear@0: }