public static void encodeRenderedImageAsRGB()

in src/main/java/org/apache/xmlgraphics/ps/ImageEncodingHelper.java [141:191]
48 lines of code
13 McCabe index (conditional complexity)

    public static void encodeRenderedImageAsRGB(RenderedImage image, OutputStream out,
            boolean outputbw, boolean bwinvert) throws IOException {
        Raster raster = getRaster(image);
        Object data;
        int nbands = raster.getNumBands();
        int dataType = raster.getDataBuffer().getDataType();
        switch (dataType) {
        case DataBuffer.TYPE_BYTE:
            data = new byte[nbands];
            break;
        case DataBuffer.TYPE_USHORT:
            data = null;
            break;
        case DataBuffer.TYPE_INT:
            data = new int[nbands];
            break;
        case DataBuffer.TYPE_FLOAT:
            data = new float[nbands];
            break;
        case DataBuffer.TYPE_DOUBLE:
            data = new double[nbands];
            break;
        default:
            throw new IllegalArgumentException("Unknown data buffer type: " + dataType);
        }

        ColorModel colorModel = image.getColorModel();
        int w = image.getWidth();
        int h = image.getHeight();
        int numDataElements = 3;
        if (colorModel.getPixelSize() == 1 && outputbw) {
            numDataElements = 1;
        }

        byte[] buf = new byte[w * numDataElements];

        for (int y = 0; y < h; y++) {
            int idx = -1;
            for (int x = 0; x < w; x++) {
                int rgb = colorModel.getRGB(raster.getDataElements(x, y, data));
                if (numDataElements > 1) {
                    buf[++idx] = (byte)(rgb >> 16);
                    buf[++idx] = (byte)(rgb >> 8);
                } else if (bwinvert && rgb == -1) {
                    rgb = 1;
                }
                buf[++idx] = (byte)(rgb);
            }
            out.write(buf);
        }
    }