package nextrek.jni;

import java.nio.ByteBuffer;

import android.graphics.Bitmap;

public class webp {

    static {
        System.loadLibrary("webp");
    }

    public static native byte[] WebPDecodeARGB(byte[] encoded, int encoded_length, int[] width, int[] height);

    public static native byte[] WebPDecodeRGB(byte[] encoded, int encoded_length, int[] width, int[] height);
    
    public static native byte[] WebPDecodeRGB565(byte[] encoded, int encoded_length, int[] width, int[] height);

    public static Bitmap byteArrayToBitmapARGB(byte[] encoded) {

        int[] width = new int[] { 0 };
        int[] height = new int[] { 0 };

        byte[] decoded = WebPDecodeARGB(encoded, encoded.length, width, height);

        ByteBuffer buffer = ByteBuffer.wrap(decoded);

        Bitmap bitmap = Bitmap.createBitmap(width[0], height[0], Bitmap.Config.ARGB_8888);
        bitmap.copyPixelsFromBuffer(buffer);

        return bitmap;
    }

    public static Bitmap byteArrayToBitmapRGB565(byte[] encoded) {

        int[] width = new int[] { 0 };
        int[] height = new int[] { 0 };

        byte[] decoded = WebPDecodeRGB565(encoded, encoded.length, width, height);

        ByteBuffer buffer = ByteBuffer.wrap(decoded);

        Bitmap bitmap = Bitmap.createBitmap(width[0], height[0], Bitmap.Config.RGB_565);
        bitmap.copyPixelsFromBuffer(buffer);

        return bitmap;
    }
}