GED 2006 (C++)

/*
 * File: meshscreen.cc - Plugin Mesh screen
 * Project: GED - bitmap editor (ICP)
 * Author: Lukas Hefka, xhefka00
 * Team: xdudka00, xfilak01, xhefka00, xhradi08
 * Created: 2006-04-04
 */
 
#include <iostream>
#include <string>
#include <vector>
 
#include "gedplugin.h"
 
using std::string;
using std::vector;
 
/**
 * Plugin core function
 * \param fb Reference to frambe buffer to work with.
 * \return Return error-code, 0 if success.
 */
int core (FrameBuffer &fb, vector<string>) {
	// Selected area range
	const int xMin= fb.select().at.x;
	const int yMin= fb.select().at.y;
	const int xMax= xMin + fb.select().size.width;
	const int yMax= yMin + fb.select().size.height;
	const int nPixels= fb.select().size.nPixels();
 
	// Average pixel
	unsigned sumRed= 0;
	unsigned sumGreen= 0;
	unsigned sumBlue= 0;
	for (int y= yMin; y< yMax; y++)
		for (int x= xMin; x< xMax; x++)
		{
			Pixel &now= fb[y][x];
			sumRed+= now.red;
			sumGreen+= now.green;
			sumBlue+= now.blue;
		}
	Pixel avgPixel = {
		sumRed/nPixels,	
		sumGreen/nPixels,
		sumBlue/nPixels,
		UCHAR_MAX		// Alpha
	};
 
	// Apply mesh screen
	for (int y= yMin; y< yMax; y++) {
		bool bFillRows = y & 1;
 
		for (int x= xMin; x< xMax; x++, bFillRows ^=1)
			if (bFillRows)
				// Fill pixel
				fb [y][x]= avgPixel;
	}
 
	return 0;	// success
}
 
// plugin main() - read the manual if available
int main (int argc, char *argv[]) {
	using namespace GedPlugin;
 
	// Create plugin object
	Plugin myPlugin (argc, argv);
 
	// Set object properties
	PluginDescription desc;
	desc.type = TYPE_FILTER;	// Plugin category: filter
	desc.name = "Mesh screen";	// Plugin name
	desc.pCore = core;		// Plugin core function (!!)
	myPlugin.set (desc);
 
	// Execute plugin (if needed)
	return myPlugin.exec();	
}