IPrint/app/src/main/java/epson/print/EPImageUtil.java

package epson.print;

import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.media.ExifInterface;

import java.io.IOException;

public class EPImageUtil {
    public static final String CANCEL_FILE_BASE_NAME = "cancel.dat";
    public static final int RETURN_CODE_CANCLE = -257;

    public static native int jpegTo1BitBmpPixelRoundDown(String str, String str2, int i);

    public native int bmp2jpg(String str, String str2, int i);

    public native int color2grayscale(String str, String str2);

    public native int getBitCount(String str);

    public native int jpg2bmp(String str, String str2, int i);

    public native int resizeImage(String str, String str2, int i, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9, int i10);

    public native int rotate180Image(String str, String str2);

    public native int rotateR270Image(String str, String str2);

    public native int rotateR90Image(String str, String str2);

    public native int tiff2bmp(String str, String str2);

    public native int writeDate(String str, String str2, int i, int i2);

    static {
        try {
            System.loadLibrary("epsimage");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public int rotateImage(String str, String str2, int i) {
        if (i == 90) {
            return rotateR90Image(str, str2);
        }
        if (i == 180) {
            return rotate180Image(str, str2);
        }
        if (i != 270) {
            return 0;
        }
        return rotateR270Image(str, str2);
    }

    public Bitmap check_rotate(String str, Bitmap bitmap) {
        try {
            int attributeInt = new ExifInterface(str).getAttributeInt(android.support.media.ExifInterface.TAG_ORIENTATION, 0);
            if (attributeInt != 6 && attributeInt != 3 && attributeInt != 8) {
                return bitmap;
            }
            Matrix matrix = new Matrix();
            if (attributeInt == 3) {
                matrix.setRotate(180.0f);
            } else if (attributeInt == 6) {
                matrix.setRotate(90.0f);
            } else if (attributeInt != 8) {
                matrix.setRotate(0.0f);
            } else {
                matrix.setRotate(270.0f);
            }
            return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, false);
        } catch (IOException e) {
            e.printStackTrace();
            return bitmap;
        }
    }
}