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//main
#include <iostream>
#include<string.h>
#include<stdio.h>
#include<stdlib.h>
#include <iostream>
#include <fstream>
#include "ppmformat.cpp"
using namespace std;
int main(){
string file = "Image01.ppm";
ReadPPM(file.c_str());
}
//image.cpp
#ifndef _IMAGE
#define _IMAGE
#include <iostream>
#include<stdio.h>
#include<stdlib.h>
#include "Color.h"
#include "Image.h"
using namespace std;
class Image{
public:
enum channel_t { RED = 0, GREEN, BLUE };
protected:
imaging::component_t * buffer;
public:
unsigned int width, height;
const unsigned int getWidth() const { return width; }
const unsigned int getHeight() const { return height; }
imaging::component_t * getRawDataPtr(){
return buffer;
}
imaging::Color getPixel(unsigned int x, unsigned int y) const{
imaging::Color color;
if ((x <= width) && (y <= height) && (x*y >= 0)){
color[RED] = x*y;
color[GREEN] = x*y + GREEN;
color[BLUE] = x*y + BLUE;
}
return color;
}
void setPixel(unsigned int x, unsigned int y, imaging::Color & value){
if ((x <= width) && (y <= height) && (x*y >= 0)){
buffer[x * y + RED] = value[RED];
buffer[x * y + GREEN] = value[GREEN];
buffer[x * y + BLUE] = value[BLUE];
}
else{
cout << "Width or heigth out of bounds!" << endl;
}
}
void setData(const imaging::component_t * & data_ptr){
int size = 3 * width * height;
buffer = new imaging::component_t[size];
for (int i = 0; i < size; i++){
buffer[i] = data_ptr[i];
}
}
void resize(unsigned int new_width, unsigned int new_height){
/*to be filled!!!*/
}
Image() : width(0), height(0), buffer(0){}
Image(unsigned int _width, unsigned int _height) : width(0), height(0), buffer(0){
width = _width;
height = _height;
}
Image(unsigned int _width, unsigned int _height, const imaging::component_t * data_ptr) : width(0), height(0), buffer(0){
width = _width;
height = _height;
setData(data_ptr);
}
Image(const Image &src) :width(src.width), height(src.height), buffer(src.buffer){}
~Image(){
delete[] buffer;
}
Image & operator = (const Image & right){
Image left = Image(right);
return left;
}
};
#endif
//image.h
//------------------------------------------------------------
//
// C++ course assignment code
//
// G. Papaioannou, 2015
//
//
#ifndef _IMAGE
#define _IMAGE
#include "Color.h"
// We put every class or function associated with the image storage, compression and manipulation
// in the "imaging" namespace
namespace imaging
{
//------------------------------------ class Image ------------------------------------------------
//
// It is the class that represents a generic data container for an image. It holds the actual buffer
// of the pixel values and provides methods for accessing them either as individual pixels or as
// a memory block. The Image class alone does not provide any functionality for loading and storing an image, as
// it is the result or input to such a procedure.
//
// The internal buffer of an image object stores the actual bytes (data) of the color image as
// a contiguous sequence of RGB triplets. Hence, the size of the buffer variable holding these data is
// 3 X width X height bytes.
class Image
{
public:
enum channel_t {RED=0,GREEN, BLUE}; // now you can use the names RED, GREEN, BLUE instead of 0,1,2
// to index individual channels
protected:
component_t * buffer; // Holds the image data
public:
unsigned int width, height; // width and height of the image (in pixels)
// metric accessors
const unsigned int getWidth() const {return width;} // returns the width of the image
const unsigned int getHeight() const {return height;} // returns the height of the image
// data accessors
component_t * getRawDataPtr(); // Obtain a pointer to the internal data
// This is NOT a copy of the internal image data, but rather
// a pointer to the internally allocated space, so DO NOT
// attempt to delete the pointer.
Color getPixel(unsigned int x, unsigned int y) const; // get the color of the image at location (x,y)
// Do any necessary bound checking. Also take into account
// the "interleaved" flag to fetch the appropriate data
// Return a black (0,0,0) color in case of an out-of-bounds
// x,y pair
// data mutators
void setPixel(unsigned int x, unsigned int y, Color & value);
// Set the RGB values for an (x,y) pixel. Do all
// necessary bound checks and respect the "interleaved"
// flag when updating our data.
void setData(const component_t * & data_ptr); // Copy the data from data_ptr to the internal buffer.
// The function ASSUMES a proper size for the incomming data array.
void resize(unsigned int new_width, unsigned int new_height);
// Change the internal data storage size to the new ones.
// If the one or both of the dimensions are smaller, clip the
// by discarding the remaining pixels in the rows / columns outside
// the margins. If the new dimensions are larger, pad the old pixels
// with zero values (black color).
// constructors and destructor
Image(); // default: zero dimensions, nullptr for the buffer.
Image(unsigned int width, unsigned int height);
Image(unsigned int width, unsigned int height, const component_t * data_ptr);
Image(const Image &src);
~Image();
Image & operator = (const Image & right);
};
} //namespace imaging
#endif
//ppmformat.h
//------------------------------------------------------------
//
// C++ course assignment code
//
// G. Papaioannou, 2015
//
//
//-------------------------------------------------------------
#ifndef _PPM
#define _PPM
#include "Image.h"
namespace imaging
{
Image * ReadPPM(const char * filename);
} //namespace imaging
#endif
//ppmformat.cpp
#ifndef _PPM
#define _PPM
#include <iostream>
#include<string.h>
#include<stdio.h>
#include<stdlib.h>
#include <string>
#include <iostream>
#include <fstream>
#include "Image.h"
#include "ppmformat.h"
using namespace std;
static imaging::Image *ReadPPM(const char *filename)
{
imaging::Image * img;
//imaging::Image * img = new imaging::Img();
//img = new imaging::Image();
std::ifstream ifs;
std::string s2;
std::string header;
unsigned int w, h, rgb_comp_color;
//anoigma arxeiou
ifs.open(filename, std::ios::binary); // need to spec. binary mode for Windows users
if (ifs.fail()) { throw("Can't open input file"); }
ifs >> header;
if (strcmp(header.c_str(), "P6") != 0) throw("Can't read input file");//to header einai to p6
ifs >> w >> h >> rgb_comp_color;
cout<<w<<endl;
cout<<h<<endl;
cout<<rgb_comp_color<<endl;
cout<<img->getWidth()<<endl;
cout<<img->getHeight()<<endl;
//alloc memory form image
if (!img) {
fprintf(stderr, "Unable to allocate memory\n");
exit(1);
}
imaging::component_t *buffer=new imaging::component_t[3*h*w];
imaging::component_t getRawDataPtr();
cout<<"edw"<<ifs.get()<<endl;
ifs.read ((char *)buffer,3*h*w);
ifs.close();
buffer = new float[1000];
//img=new imaging::Image(w,h,buffer);
return img;
}
#endif
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