javauis/eswt_qt/eswtuitestutils/javasrc/com/nokia/mj/impl/uitestutils/ImageTestUtils.java
changeset 35 85266cc22c7f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/eswt_qt/eswtuitestutils/javasrc/com/nokia/mj/impl/uitestutils/ImageTestUtils.java	Fri Jun 11 13:33:44 2010 +0300
@@ -0,0 +1,639 @@
+package com.nokia.mj.impl.uitestutils;
+
+import org.eclipse.swt.internal.qt.graphics.Image;
+import java.util.Arrays;
+
+/**
+ * Image utils for verifying image pixels against mask
+ * plus some other helpers for verifying image properties. 
+ * 
+ * NOTE. Currently only CGFX images are supported however eSWT images 
+ * can be verified by using org.eclipse.swt.internal.qt.graphics.Image internal_getImage()
+ * to obtain wrapped CGFX image.
+ * 
+ * Usage example
+ * 
+ * create a mask from mask data and then mask by giving data and scanlenght.
+ * <code>
+ * int[] maskData = {
+ *   	0,0,0,0,0,0,0,0,0,
+ * 		0,0,0,0,1,0,0,0,0,
+ * 		0,0,0,0,1,0,0,0,0,
+ * 		0,0,0,0,1,0,0,0,0,
+ * 		0,0,0,0,1,0,0,0,0,
+ * 		0,0,0,0,1,0,0,0,0,
+ * 		0,0,0,0,1,0,0,0,0,
+ * 		0,0,0,0,0,0,0,0,0
+ * };
+ * 
+ * Mask mask = new Mask(maskData, 9);
+ * </code>
+ * 
+ * Then image pixels can be validated with ImageTestUtils. That is where there is 1 in mask it is
+ * compared against maskArgb and all where there is 0 in mask it is compared against bgArgb.
+ * <code>
+ * ImageTestUtils.validatePixels(imageToValidate, mask, maskArgb, bgArgb); 
+ * </code>
+ * 
+ * @author sampkaar
+ *
+ */
+public class ImageTestUtils {
+
+	/** 
+	 * This pixel is rendering target image background color.
+	 */
+	public static final int IMAGE_BACKGROUND_COLOR = 0;
+
+	/** 
+	 * This pixel is foreground color set to GC.
+	 */
+	public static final int GC_FOREGROUND_COLOR = 1;
+
+	/**
+	 * This pixel is either foreground or image background color.
+	 * Used for example in drawRoundRect and drawEllipse tests.
+	 */
+	public static final int FOREGROUND_OR_IMAGE_BACKGROUND_COLOR = 2;
+	
+	/** 
+	 * This pixel is background color set to GC.
+	 * Used for example in fillGradientRect test.
+	 */
+	public static final int GC_BACKGROUND_COLOR = 3;
+
+	/**
+	 * This pixel is neither foreground nor gc background color. 
+	 * Used for example in fillGradientRect test. 
+	 */
+	public static final int NEITHER_FOREGROUND_NOR_GC_BACKGROUND_COLOR = 4;
+
+	/** 
+	 * This pixel can be ignored.
+	 * Used for example in fillGradientRect test.
+	 */
+	public static final int IGNORE_COLOR = 5;
+	
+	/**
+	 * Validates image dimensions against reference width and height.
+	 * Prints possible problems to System.out.
+	 * 
+	 * @param img - The image to check
+	 * @param refWidth - The reference width
+	 * @param refHeight - The reference height
+	 */
+	public static final boolean validateImageDimensions(Image img, int refWidth, int refHeight) {
+		if ((refWidth != img.getWidth()) || (refHeight != img.getHeight())) {
+			System.out.println("Image size should be ("+refWidth+","+refHeight+"), "+
+							   "but is ("+img.getWidth()+","+img.getHeight()+")");
+			return false;
+		}
+		return true;
+	}
+	
+	/**
+	 * Validates image pixels which are outside specified rectangle ingoreRect against given reference color.
+	 * 
+	 * @param ignoreRect The area that is to be ingnored
+	 * @param img Image to validate
+	 * @param argb The reference color
+	 * @return true if all pixels outside ingoreRect have reference color orherwise false 
+	 */
+	public static final boolean validatePixels(Rect ignoreRect, Image img, int argb) {
+		final int width = img.getWidth();
+		final int height = img.getHeight();
+		final int pixels =  width * height;
+		final int scanlength = img.getWidth();
+		
+		// data array for image data
+		int[] imageData = new int[pixels];
+		
+		// get data for whole image
+		img.getRGB(imageData, 0, width, 0, 0, width, height);
+
+		// calculate start index
+		int start = scanlength*ignoreRect.y();
+		for(int y = 0; y<ignoreRect.height();y++) {
+			Arrays.fill(imageData, start+ignoreRect.x(), start+ignoreRect.width()+ignoreRect.x(), argb);
+			// move start to next line
+			start += scanlength;
+		}
+		
+		// validate array
+		for(int i=0; i < pixels; i++) {
+			if(!(imageData[i] == argb)) {
+				return false;
+			}
+		}
+		return true;
+	}
+	
+	/**
+	 * Validates that there is at least one pixel with foreground color inside the specified rectangle
+	 * and that image pixels which are outside specified rectangle has background color.
+	 * 
+	 * @param rect The area that is to be checked
+	 * @param img Image to validate
+	 * @param fgColor The color that must exist inside the rect
+	 * @param bgColor The color which must be outside the rect
+	 * @return true if all pixels outside rect have background color and at least one pixel inside the rect has foreground color 
+	 *         orherwise false 
+	 */
+	public static final boolean validatePixels(Rect rect, Image img, int fgColor, int bgColor) {
+		final int width = img.getWidth();
+		final int height = img.getHeight();
+		final int pixels =  width * height;
+		final int scanlength = img.getWidth();
+		boolean foundFgColor = false;
+				
+		// data array for image data
+		int[] imageData = new int[pixels];
+		
+		// get data for whole image
+		img.getRGB(imageData, 0, width, 0, 0, width, height);
+
+		Rect imageRect = new Rect(0,0,width, height);
+		rect = rect.intersection(imageRect);
+
+		// Check that foreground color was found inside the rect
+		foundFgColor = isAtleastOnePixelWithRefColor(img, rect, fgColor);		
+		if(!foundFgColor){
+			return false;
+		}
+		
+		int start = scanlength*rect.y();
+		// Fill the rect with background color
+		for(int y = 0; y<rect.height();y++) {
+			Arrays.fill(imageData, start+rect.x(), start+rect.width()+rect.x(), bgColor);
+			// move start to next line
+			start += scanlength;
+		}
+		
+		// validate array, now all pixels should have background color
+		for(int i=0; i < pixels; i++) {
+			if(!(imageData[i] == bgColor)) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	/**
+	 * Validates that there is at least one pixel with foreground color inside the specified rectangle
+	 * and that image pixels which are outside specified rectangle has background color.
+	 * 
+	 * @param rect The area that is to be checked
+	 * @param img Image to validate
+	 * @param fgColor The color that must exist inside the rect
+	 * @param textRectColor The background color of the rect 
+	 * @param bgColor The color which must be outside the rect
+	 * @param textRectColorOn true if textRectColor must exist inside the rect, false if textRectColor shouldn't be found inside the rect 
+	 * @return true if all pixels outside rect have background color and at least one pixel inside the rect has foreground color 
+	 *         orherwise false 
+	 */
+	public static final boolean validatePixels(Rect rect, Image img, int fgColor, int textRectColor, int bgColor, boolean textRectColorOn) {
+
+		if(textRectColorOn){
+			// Check that text background color was found inside the rect
+			if(!isAtleastOnePixelWithRefColor(img, rect, textRectColor)){
+				return false;
+			}
+		} else {
+			// Check that text background color is not found inside the rect		
+			if(isAtleastOnePixelWithRefColor(img, rect, textRectColor)){
+				return false;
+			}
+		}
+		
+		return validatePixels(rect, img, fgColor, bgColor);
+	}
+
+	/**
+	 * Validates that there is at least one pixel with foreground color inside the specified rectangles
+	 * and that image pixels which are outside specified rectangles has background color.
+	 * 
+	 * @param rects The areas that is to be checked
+	 * @param img Image to validate
+	 * @param fgColor The color that must exist inside the rects
+	 * @param bgColor The color which must be outside the rects
+	 * @return true if all pixels outside rects have background color and at least one pixel inside the rects has foreground color 
+	 *         orherwise false 
+	 */
+	public static final boolean validatePixels(Rect[] rects, Image img, int fgColor, int bgColor) {
+		final int width = img.getWidth();
+		final int height = img.getHeight();
+		final int pixels =  width * height;
+		final int scanlength = img.getWidth();
+		boolean foundFgColor = false;
+		final int rectCount = rects.length;
+
+		Rect imageRect = new Rect(0,0,width, height);
+		// Check that foreground color is found inside each rect
+		for(int i=0; i<rectCount; i++){
+			rects[i] = rects[i].intersection(imageRect);
+			foundFgColor = isAtleastOnePixelWithRefColor(img, rects[i], fgColor);		
+			if(!foundFgColor){
+				return false;
+			}
+		}
+		
+		// Check that background color is found outside the rects
+
+		// data array for image data
+		int[] imageData = new int[pixels];
+		// get data for whole image
+		img.getRGB(imageData, 0, width, 0, 0, width, height);
+
+		int start;
+		// Fill the rects with background color
+		for(int i=0; i<rectCount; i++){
+			start = scanlength*rects[i].y();
+			for(int y = 0; y<rects[i].height();y++) {
+				Arrays.fill(imageData, start+rects[i].x(), start+rects[i].width()+rects[i].x(), bgColor);
+				// move start to next line
+				start += scanlength;
+			}
+		}
+		
+		// validate array, now all pixels should have background color
+		for(int i=0; i < pixels; i++) {
+			if(!(imageData[i] == bgColor)) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	/**
+	 * Checks is there at least one pixel with reference color inside the specified rectangle in Image.
+	 * 
+	 * @param rect The area that is to be checked
+	 * @param refColor The color that must exist inside the rect
+	 * @return true if at least one pixel inside the rect has reference color orherwise false 
+	 */
+	public static final boolean isAtleastOnePixelWithRefColor(Image img, Rect rect, int refColor) {
+		
+		final int width = img.getWidth();
+		final int height = img.getHeight();
+		final int pixels =  width * height;
+		final int scanlength = img.getWidth();
+
+		// data array for image data
+		int[] imageData = new int[pixels];
+		
+		// get data for whole image
+		img.getRGB(imageData, 0, width, 0, 0, width, height);
+
+		// calculate start index
+		int start = scanlength*rect.y();
+
+		// Check that is at least one pixel has foreground color inside the rect
+		for(int y = 0; y<rect.height();y++) {
+			for(int i=start+rect.x(); i < start+rect.width()+rect.x(); i++) {			
+				if((imageData[i] == refColor)) {
+					return true;
+				}
+			}
+			// move start to next line
+			start += scanlength;
+		}	
+		return false;
+	}
+	
+	/**
+	 * Validates that every pixel in given image has
+	 * given referense color value argb. 
+	 * 
+	 * @param img - The image to check
+	 * @param argb - The referece color to compare
+	 */
+	public static final boolean validatePixels(Image img, int argb) {
+		
+		final int width = img.getWidth();
+		final int height = img.getHeight();
+		final int pixels =  width * height;
+		
+		// get color components from reference
+		final int refAlpha 	= (argb >> 24) 	& 0xff;
+		final int refRed   	= (argb >> 16) 	& 0xff;
+		final int refGreen 	= (argb >> 8) 	& 0xff;
+		final int refBlue 	= (argb) 		& 0xff;
+		
+		// data array for image data
+		int[] imageData = new int[pixels];
+		
+		// get data for whole image
+		img.getRGB(imageData, 0, width, 0, 0, width, height);
+	
+		// check each pixel in image, break if pixel does not match
+		for(int i=0; i < pixels; i++) {
+			if (refAlpha != ((imageData[i] >> 24) & 0xff)) return false;
+			if (refRed 	 != ((imageData[i] >> 16) & 0xff)) return false; 
+			if (refGreen != ((imageData[i] >> 8 ) & 0xff)) return false;
+			if (refBlue  != ( imageData[i]        & 0xff)) return false;
+		}
+		return true;
+	}
+	
+	/**
+	 * Validates that given pixels are equal to 
+	 * reference pixel color (argb) and background color in given rgb data
+	 * 
+	 * @param rgbdata - The image data to be checked
+	 * @param mask - the reference mask
+	 * @param maskArgb - The reference color for pixels with value 1 in mask
+	 * @param bgArgb - The reference color for pixels with value 0 in mask
+	 * 
+	 */
+	public static final boolean validatePixels(int[] rgbdata, Mask mask, int maskArgb, int bgArgb) {
+		return doCheckPixels(rgbdata, mask, maskArgb, bgArgb, 0, false);
+	}
+	
+	/**
+	 * Validates that given pixels are equal to 
+	 * reference pixel color (argb) and background color in given rgb data
+	 * 
+	 * @param rgbdata - The image data to be checked
+	 * @param dataOffset The offset from beginning of rgbdata where image data starts
+	 * @param dataLength The lenght of image data after offset
+	 * @param mask - the reference mask
+	 * @param maskArgb - The reference color for pixels with value 1 in mask
+	 * @param bgArgb - The reference color for pixels with value 0 in mask
+	 * 
+	 */
+	public static final boolean validatePixels(int[] rgbdata, int dataOffset, int dataLength, Mask mask, int maskArgb, int bgArgb) {
+		
+		// create array for data 
+		int[] data = new int[dataLength];
+		
+		// copy from rgbdata to data
+		for(int i=dataOffset; i < rgbdata.length; i++) {
+			data[i-dataOffset] = rgbdata[i];
+		}
+		
+		//System.out.println("\n mask size: " + mask.getData().length+", dataSize: " + rgbdata.length);
+		return doCheckPixels(data, mask, maskArgb, bgArgb, 0, false);
+	}
+	
+	/**
+	 * Validates that given pixels are equal to 
+	 * reference pixel color (argb) and background color in image
+	 * 
+	 * @param img - The image to check
+	 * @param mask - the reference mask
+	 * @param maskArgb - The reference color for pixels with value 1 in mask
+	 * @param bgArgb - The reference color for pixels with value 0 in mask
+	 * 
+	 */
+	public static final boolean validatePixels(Image img, Mask mask, int maskArgb, int bgArgb) {
+		
+		// data array for image data
+		int[] imageData = new int[img.getWidth()*img.getHeight()];
+		
+		// get data for whole image
+		img.getRGB(imageData, 0, img.getWidth(), 0, 0, img.getWidth(), img.getHeight());
+		
+		// check pixels
+		return doCheckPixels(imageData, mask, maskArgb, bgArgb, 0, false);
+	}
+	
+	/**
+	 * Validates that given pixels are equal to 
+	 * reference pixel color (argb) and background color in image
+	 * 
+	 * @param img - The image to check
+	 * @param mask - the reference mask
+	 * @param maskArgb - The reference color for pixels with value 1 in mask
+	 * @param bgArgb - The reference color for pixels with value 0 in mask
+	 * @param ingoreAlpha If true alpha value is not validated
+	 * @return true if mask and image match otherwise false
+	 */
+	public static final boolean validatePixels(Image img, Mask mask, int maskArgb, int bgArgb, boolean ignoreAlpha) {
+		
+		// data array for image data
+		int[] imageData = new int[img.getWidth()*img.getHeight()];
+		
+		// get data for whole image
+		img.getRGB(imageData, 0, img.getWidth(), 0, 0, img.getWidth(), img.getHeight());
+		
+		// check pixels
+		return doCheckPixels(imageData, mask, maskArgb, bgArgb, 0, ignoreAlpha);
+	}
+
+	/**
+	 * Validates that given pixels are equal to 
+	 * foreground color (argb), image background color and gc background color in image
+	 * 
+	 * @param img - The image to check
+	 * @param mask - the reference mask
+	 * @param fgArgb - The reference color for pixels with value 1 GC_FOREGROUND_COLOR in mask
+	 * @param gcBgArgb - The reference color for pixels with value 3 GC_BACKGROUND_COLOR in mask
+	 * @param imgBgArgb - The reference color for pixels with value 0 IMAGE_BACKGROUND_COLOR in mask
+	 * @param ingoreAlpha If true alpha value is not validated
+	 * @return true if mask and image match otherwise false
+	 */
+	public static final boolean validatePixels(Image img, Mask mask, int fgArgb, int gcBgArgb, int imgBgArgb, boolean ignoreAlpha) {
+		
+		// data array for image data
+		int[] imageData = new int[img.getWidth()*img.getHeight()];
+		
+		// get data for whole image
+		img.getRGB(imageData, 0, img.getWidth(), 0, 0, img.getWidth(), img.getHeight());
+		
+		// check pixels
+		return doCheckPixels(imageData, mask, fgArgb, imgBgArgb, gcBgArgb, ignoreAlpha);
+	}
+
+	/*
+	 * method for checking pixels against mask
+	 * The imageData and the data in mask must be same size.  
+	 */
+	private static final boolean doCheckPixels(int[] imageData, Mask mask, int fgColorArgb, int imgBgColorArgb, int gcBgColorArgb, boolean ignoreAlpha ) {
+		
+		// get color components for GC foreground color
+		final int fgAlpha 	= (fgColorArgb >> 24) 	& 0xff;
+		final int fgRed   	= (fgColorArgb >> 16) 	& 0xff;
+		final int fgGreen 	= (fgColorArgb >> 8) 	& 0xff;
+		final int fgBlue 	= (fgColorArgb) 		& 0xff;
+		
+		// get color components for image background color
+		final int imgBgAlpha 	= (imgBgColorArgb  >> 24) 	& 0xff;
+		final int imgBgRed   	= (imgBgColorArgb  >> 16) 	& 0xff;
+		final int imgBgGreen 	= (imgBgColorArgb  >> 8) 	& 0xff;
+		final int imgBgBlue 	= (imgBgColorArgb) 			& 0xff;
+		
+		// get color components for GC background color
+		int gcBgAlpha 	= 0;
+		int gcBgRed   	= 0;
+		int gcBgGreen 	= 0;
+		int gcBgBlue 	= 0;
+		if (gcBgColorArgb != 0){ // GC Background color is defined
+			gcBgAlpha 	= (gcBgColorArgb  >> 24) 	& 0xff;
+			gcBgRed   	= (gcBgColorArgb  >> 16) 	& 0xff;
+			gcBgGreen 	= (gcBgColorArgb  >> 8) 	& 0xff;
+			gcBgBlue 	= (gcBgColorArgb) 			& 0xff;
+		}
+		
+		// get mask data
+		int[] maskdata = mask.getData();
+		
+		// verify background & pixels
+		for(int i=0; i < imageData.length; i++) {
+
+			// if mask pixel is GC_FOREGROUND_COLOR (1), check against fgArgb
+			if(maskdata[i] == GC_FOREGROUND_COLOR) {	
+				if (!ignoreAlpha) {
+				    if (fgAlpha != ((imageData[i] >> 24) & 0xff)) return false;
+				}
+				if (fgRed	!= ((imageData[i] >> 16) & 0xff)) return false; 
+				if (fgGreen != ((imageData[i] >> 8 ) & 0xff)) return false;
+				if (fgBlue  != ( imageData[i]        & 0xff)) return false;
+			} 
+			// if mask pixel is FOREGROUND_OR_IMAGE_BACKGROUND_COLOR (2), this pixel is either 
+			// foreground or image background color. 
+			// Used for example in drawRoundRect and drawEllipse tests.
+			else if(maskdata[i] == FOREGROUND_OR_IMAGE_BACKGROUND_COLOR) {	
+				if (!ignoreAlpha) {
+					if (fgAlpha 	!= ((imageData[i] >> 24) & 0xff) && 
+						imgBgAlpha 	!= ((imageData[i] >> 24) & 0xff)) return false;
+				}				
+				if (fgRed 	 	!= ((imageData[i] >> 16) & 0xff) && 
+					imgBgRed 	!= ((imageData[i] >> 16) & 0xff)) return false; 
+
+				if (fgGreen 	!= ((imageData[i] >> 8 ) & 0xff) && 
+					imgBgGreen 	!= ((imageData[i] >> 8 ) & 0xff)) return false;
+	
+				if (fgBlue  	!= ( imageData[i]        & 0xff) && 
+					imgBgBlue	!= ( imageData[i]         & 0xff)) return false;
+			} 
+			// if mask pixel is GC_BACKGROUND_COLOR (3), this pixel is background color set to GC. 
+			// Used for example in fillGradientRect test.
+			else if(maskdata[i] == GC_BACKGROUND_COLOR) {	
+				if (!ignoreAlpha) {
+					if (gcBgAlpha != ((imageData[i] >> 24) & 0xff)) return false;
+				}
+				if (gcBgRed 	!= ((imageData[i] >> 16) & 0xff)) return false; 
+				if (gcBgGreen 	!= ((imageData[i] >> 8 ) & 0xff)) return false;
+				if (gcBgBlue  	!= ( imageData[i]        & 0xff)) return false;
+			} 
+			// if mask pixel is NEITHER_FOREGROUND_NOR_GC_BACKGROUND_COLOR (4), this pixel is neither 
+			// foreground nor gc background color. 
+			// Used for example in fillGradientRect test.
+			else if(maskdata[i] == NEITHER_FOREGROUND_NOR_GC_BACKGROUND_COLOR) {	
+				if (!ignoreAlpha) {
+					if (fgAlpha != gcBgAlpha){
+						if (fgAlpha 	== ((imageData[i] >> 24) & 0xff) || 
+							gcBgAlpha 	== ((imageData[i] >> 24) & 0xff)) return false;
+					}
+				}
+				
+				if (fgRed != gcBgRed){
+					if (fgRed 	 	== ((imageData[i] >> 16) & 0xff) || 
+						gcBgRed  	== ((imageData[i] >> 16) & 0xff)) return false; 
+				}
+				if (fgGreen != gcBgGreen){
+					if (fgGreen 	== ((imageData[i] >> 8 ) & 0xff) || 
+						gcBgGreen	== ((imageData[i] >> 8 ) & 0xff)) return false;
+				}
+				if (fgBlue != gcBgBlue){
+					if (fgBlue  	== ( imageData[i]        & 0xff) || 
+						gcBgBlue 	== ( imageData[i]         & 0xff)) return false;
+				}
+			} 
+			else if(maskdata[i] == IGNORE_COLOR) {	
+				// skip the pixel
+			} 
+			// if mask pixel is IMAGE_BACKGROUND_COLOR (1), check against imgBg
+			else  if(maskdata[i] == IMAGE_BACKGROUND_COLOR) {
+				if (!ignoreAlpha) {
+				    if (imgBgAlpha != ((imageData[i] >> 24) & 0xff)) return false;
+				}
+				if (imgBgRed 	!= ((imageData[i] >> 16) & 0xff)) return false; 
+				if (imgBgGreen 	!= ((imageData[i] >> 8 ) & 0xff)) return false;
+				if (imgBgBlue 	!= ( imageData[i]         & 0xff)) return false;
+			}
+			// If mask pixel is something else that's error
+			else {
+				return false;
+			}
+		}
+		return true;
+	}
+	
+	/**
+	 * prints black & white image to console.
+	 * black is printed as 1 and white as 0.
+	 */
+	public static final void print(Image img) {
+
+		final int width = img.getWidth();
+		final int height = img.getHeight();
+		final int pixels =  img.getWidth() * img.getHeight();
+		
+		// data array for image data
+		int[] imageData = new int[pixels];
+		
+		// get data for whole image
+		img.getRGB(imageData, 0, width, 0, 0, width, height);
+		
+		String output = "Image("+img.getWidth()+","+img.getHeight()+"):\n";
+		int y = 0;
+		for(int i = 0; i < imageData.length; i++) {
+			
+			int a = ((imageData[i] >> 24) & 0xff);
+			int r = ((imageData[i] >> 16) & 0xff); 
+			int b = ((imageData[i] >> 8 ) & 0xff);
+			int g = ( imageData[i] & 0xff);
+			
+			if (a == 255 && r == 0 && g == 0 && b == 0) {
+				output += "1,";
+			} else if (a == 255 && r == 255 && g == 255 && b == 255) {
+				output += "0,";
+			}
+			else {
+				output += "("+a+","+r+","+b+","+g+")";
+			}
+			
+			if(i==((y*width) + (width-1))) {
+				output += "\n";
+				y++;
+			}
+		}
+		System.out.println(output);
+	}
+	
+	public static final void print(int[] array, int scanlength) {
+		final int width = scanlength;
+		String output = "";
+		
+		int y = 0;
+		for(int i = 0; i < array.length; i++) {
+			
+			int a = ((array[i] >> 24) & 0xff);
+			int r = ((array[i] >> 16) & 0xff); 
+			int b = ((array[i] >> 8 ) & 0xff);
+			int g = ( array[i] & 0xff);
+			
+			if (a == 255 && r == 0 && g == 0 && b == 0) {
+				output += "1,";
+			} else if (a == 255 && r == 255 && g == 255 && b == 255) {
+				output += "0,";
+			}
+			else {
+				output += "x,";
+			}
+			
+			if(i==((y*width) + (width-1))) {
+				output += "\n";
+				y++;
+			}
+		}
+		System.out.println(output);
+	}
+
+	private int getIndexForPoint(int scanlength, int x, int y) {
+		return y*scanlength+x;
+	}
+	
+	
+}