ppm.cpp

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "read_image.h"
#include "modification_and_write_image.h"


int main(int argc, char* argv[])
{
//anoncement
	read_image read = read_image();
	modification_and_write_image modification = modification_and_write_image();

//--------------------------------------------------------------------------
// Read file "gargouille.ppm" into image (width and height)
//--------------------------------------------------------------------------


	read.ppm_read_from_file("gargouille.ppm");

	int width=read.Get_old_width();
	int height=read.Get_old_height();
	u_char *image=read.Get_old_data();

//--------------------------------------------------------------------------
// Create a desaturated (B&W) copy of the image we've just read and
// write it into "gargouille_BW.ppm"
//--------------------------------------------------------------------------

// Copy image into image_bw
	int width_bw = width;
	int height_bw = height;
	u_char* image_bw = new u_char[3 * width * height];
	memcpy(image_bw, image, 3 * width * height * sizeof(*image_bw));

// Desaturate image_bw
	modification.ppm_desaturate(image_bw, width, height);

// Write the desaturated image into "gargouille_BW.ppm"
	modification.ppm_write_to_file("gargouille_BW.ppm");

// Free the desaturated image
	delete image_bw;

//--------------------------------------------------------------------------
// Create a resized copy of the image and
// write it into "gargouille_small.ppm"
//--------------------------------------------------------------------------

// Copy image into image_small
	int width_small = width;
	int height_small = height;
	u_char* image_small =new u_char[3 * width_small * height_small];
	memcpy(image_small, image, 3 * width_small * height_small * sizeof(*image_small));

// Shrink image_small size 2-fold
	modification.ppm_shrink(&image_small, width_small, height_small, 2);

// Write the desaturated image into "gargouille_small.ppm"
	modification.ppm_write_to_file("gargouille_small.ppm");

// Free the not yet freed images
	read.clear();
	modification.clear();
	delete image_small;
	
	return 0;
}