PPM Images in Android

I'm trying to open .ppm images (Portable pixm开发者_如何学Pythonaps) in Android. I've deciphered the format enough to create this:

public static Bitmap ReadBitmapFromPPM(String file) throws IOException
{
    //FileInputStream fs = new FileInputStream(file);
    BufferedReader reader = new BufferedReader(new FileReader(file));
    if (reader.read() != 'P' || reader.read() != '6')
        return null;
    reader.read(); //Eat newline
    String widths = "", heights = "";
    char temp;
    while ((temp = (char)reader.read()) != ' ')
    widths += temp;
    while ((temp = (char)reader.read()) >= '0' && temp <= '9')
    heights += temp;
    if (reader.read() != '2' || reader.read() != '5' || reader.read() != '5')
        return null;
    reader.read(); //Eat the last newline
    int width =  Integer.parseInt(widths);
    int height = Integer.parseInt(heights);
    int[] colors = new int[width*height];

   //Read in the pixels
    for (int y = 0; y < height; y++)
    {
        for (int x = 0; x < width; x++)
        {
            char[] pixel = new char[3];
            reader.read(pixel);
            /*
            int red = reader.read();
            int green = reader.read();
            int blue = reader.read();

            byte r = (byte)red;
            byte g = (byte)green;
            byte b = (byte)blue;*/
            colors[y*width + x] =   //(255 << 24) | //A
                                    (pixel[0]&0x0ff << 16) | //R
                                    (pixel[1]&0x0ff << 8)  | //G
                                    (pixel[2]&0x0ff);       //B
        }
    }

    Bitmap bmp = Bitmap.createBitmap(colors, width, height, Bitmap.Config.ARGB_8888);

I get to the point where I'm decoding the pixels, but the ascii values of the green and blue values for even the first pixel are 16 bit max value (65535 when using .read()). As you can see I've tried a lot of things to drill down to a decent value for the colors, but no luck.

When I look at the values in the ppm the characters in the second and third fields are strange. Does anyone know where I'm going astray here? The ppm opens properly in photoshop...

My code was rather foolish since I didn't research what a char in Java actually was. char in Java is not a simple byte. When the code is modified to consume byte by byte it works.

for anyone still struggling with this, here is a functioning solution that I managed to create merging this with some other code I found online:

public static Bitmap ReadBitmapFromPPM2(String file) throws IOException {
    //FileInputStream fs = new FileInputStream(file);
    BufferedInputStream reader = new BufferedInputStream(new FileInputStream(new File(file)));
    if (reader.read() != 'P' || reader.read() != '6')
        return null;

    reader.read(); //Eat newline
    String widths = "" , heights = "";
    char temp;
    while ((temp = (char) reader.read()) != ' ') {
        widths += temp;
    }
    while ((temp = (char) reader.read()) >= '0' && temp <= '9')
        heights += temp;
    if (reader.read() != '2' || reader.read() != '5' || reader.read() != '5')
        return null;
    reader.read();

    int width = Integer.valueOf(widths);
    int height = Integer.valueOf(heights);
    int[] colors = new int[width * height];

    byte [] pixel = new byte[3];
    int len = 0;
    int cnt = 0;
    int total = 0;
    int[] rgb = new int[3];
    while ((len = reader.read(pixel)) > 0) {
        for (int i = 0; i < len; i ++) {
            rgb[cnt] = pixel[i]>=0?pixel[i]:(pixel[i] + 255);
            if ((++cnt) == 3) {
                cnt = 0;
                colors[total++] = Color.rgb(rgb[0], rgb[1], rgb[2]);
            }
        }
    }

    Bitmap bmp = Bitmap.createBitmap(colors, width, height, Bitmap.Config.ARGB_8888);
    return bmp;
}