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/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package bitmapencoder;
import java.io.IOException;
import javax.imageio.ImageIO;
import java.io.File;
import java.awt.image.*;
/**
*
* @author Rodot
*/
public class BitmapEncoder {
private BufferedImage inputImage;
private BufferedImage outputImage;
private String bitmapName = "myBitmap";
private boolean hexFormatting = false;
private boolean wrapping = true;
private static File[] filesToConvert;
private static int imageCounter;
private static int fileCount;
protected void BitmapEncoder() {
}
protected void open(File file) {
try {
inputImage = ImageIO.read(file);
} catch (IOException e) {
e.printStackTrace();
}
if (inputImage != null) {
if ((inputImage.getWidth() > 200) || (inputImage.getHeight() > 200)) {
inputImage = null;
return;
}
outputImage = deepCopy(inputImage);
}
}
protected void threshold(int thres) {
if (inputImage == null) {
return;
}
for (int y = 0; y < inputImage.getHeight(); y++) {
for (int x = 0; x < inputImage.getWidth(); x++) {
int rgb = inputImage.getRGB(x, y);
int red = (rgb >> 16) & 0x000000FF;
int green = (rgb >> 8) & 0x000000FF;
int blue = (rgb) & 0x000000FF;
int value = red + green + blue;
if (value > thres) {
outputImage.setRGB(x, y, 0x00FFFFFF);
} else {
outputImage.setRGB(x, y, 0);
}
}
}
}
protected String generateOutput(int thres) {
if (inputImage == null) {
return "";
}
String output = "";
output = output.concat("const byte ");
output = output.concat(bitmapName);
output = output.concat("[] PROGMEM = {");
int width = ((inputImage.getWidth() - 1) / 8 + 1) * 8; //round to the closest larger multiple of 8
output = output.concat(width + "," + inputImage.getHeight() + ",");
if (wrapping) {
output = output.concat("\n");
}
for (int y = 0; y < inputImage.getHeight(); y++) {
for (int x = 0; x < inputImage.getWidth(); x += 8) {
if (hexFormatting) {
output = output.concat("0x");
} else {
output = output.concat("B");
}
int thisByte = 0;
for (int b = 0; b < 8; b++) {
int value = 0xFFFF;
if (x + b < inputImage.getWidth()) {
int rgb = inputImage.getRGB(x + b, y);
int red = (rgb >> 16) & 0x000000FF;
int green = (rgb >> 8) & 0x000000FF;
int blue = (rgb) & 0x000000FF;
value = red + green + blue;
}
if (hexFormatting) {
thisByte *= 2;
if (value < thres) {
thisByte++;
}
} else {//binary formattning
if (value < thres) {
output = output.concat("1");
} else {
output = output.concat("0");
}
}
}
if (hexFormatting) {
output = output.concat(Integer.toString(thisByte, 16).
toUpperCase());
}
output = output.concat(",");
}
if (wrapping) {
output = output.concat("\n");
}
}
output = output.concat("};");
return output;
}
protected static BufferedImage deepCopy(BufferedImage bi) {
ColorModel cm = bi.getColorModel();
boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
WritableRaster raster = bi.copyData(null);
return new BufferedImage(cm, raster, isAlphaPremultiplied, null);
}
protected static int countFiles(File[] list, boolean recursed) {
if (list == null) {
return 0;
}
if (!recursed) {
fileCount = 0;
}
for (File f : list) {
if (f.isDirectory()) {
countFiles(f.listFiles(), true);
} else {
if (isImage(f)) {
fileCount++;
}
}
}
return fileCount;
}
protected static boolean isImage(File f) {
boolean isImage = false;
if (f.getName().endsWith(".bmp") || f.getName().endsWith(".png")
|| f.getName().endsWith(".jpeg")
|| f.getName().endsWith(".jpg")) {
isImage = true;
}
return isImage;
}
protected static File[] processSelectedFiles(File[] list, boolean recursed) {
if (!recursed) {
filesToConvert = new File[countFiles(list, false)];
imageCounter = 0;
}
if (list == null) {
return null;
}
for (File f : list) {
if (f.isDirectory()) {
processSelectedFiles(f.listFiles(), true);
} else {
if (isImage(f)) {
filesToConvert[imageCounter] = f;
imageCounter++;
}
}
}
return filesToConvert;
}
protected BufferedImage getInputImage() {
return inputImage;
}
protected BufferedImage getOutputImage() {
return outputImage;
}
protected String getBitmapName() {
return bitmapName;
}
protected boolean isHexFormatting() {
return hexFormatting;
}
protected boolean isWrapping() {
return wrapping;
}
protected void setInputImage(BufferedImage inputImage) {
this.inputImage = inputImage;
}
protected void setOutputImage(BufferedImage outputImage) {
this.outputImage = outputImage;
}
protected void setBitmapName(String bitmapName) {
this.bitmapName = bitmapName;
}
protected void setHexFormatting(boolean hexFormatting) {
this.hexFormatting = hexFormatting;
}
protected void setWrapping(boolean wrapping) {
this.wrapping = wrapping;
}
}
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