Fix downsampling check in crop.

            // Find best downsampling size

            int imageSide = Math.max(w, h);

            options.inSampleSize = 1;

            if (imageSide > maxSideLength) {

                int shifts = 1 + Integer.numberOfLeadingZeros(maxSideLength)

                        - Integer.numberOfLeadingZeros(imageSide);

                options.inSampleSize = 1 << shifts;

                options.inSampleSize <<= shifts;

            }

            // Make sure sample size is reasonable

            if (0 >= (int) (Math.min(w, h) / options.inSampleSize)) {

            if (options.inSampleSize <= 0 ||

                    0 >= (int) (Math.min(w, h) / options.inSampleSize)) {

                return null;

            }