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moved java files for pre-convert
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Henry Schimke
@@ -0,0 +1,279 @@
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/*
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* Copyright 2008 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.zxing.qrcode.encoder;
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import org.junit.Assert;
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import org.junit.Test;
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/**
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* @author satorux@google.com (Satoru Takabayashi) - creator
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* @author mysen@google.com (Chris Mysen) - ported from C++
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*/
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public final class MaskUtilTestCase extends Assert {
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@Test
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public void testApplyMaskPenaltyRule1() {
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ByteMatrix matrix = new ByteMatrix(4, 1);
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matrix.set(0, 0, 0);
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matrix.set(1, 0, 0);
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matrix.set(2, 0, 0);
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matrix.set(3, 0, 0);
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assertEquals(0, MaskUtil.applyMaskPenaltyRule1(matrix));
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// Horizontal.
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matrix = new ByteMatrix(6, 1);
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matrix.set(0, 0, 0);
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matrix.set(1, 0, 0);
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matrix.set(2, 0, 0);
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matrix.set(3, 0, 0);
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matrix.set(4, 0, 0);
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matrix.set(5, 0, 1);
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assertEquals(3, MaskUtil.applyMaskPenaltyRule1(matrix));
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matrix.set(5, 0, 0);
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assertEquals(4, MaskUtil.applyMaskPenaltyRule1(matrix));
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// Vertical.
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matrix = new ByteMatrix(1, 6);
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matrix.set(0, 0, 0);
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matrix.set(0, 1, 0);
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matrix.set(0, 2, 0);
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matrix.set(0, 3, 0);
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matrix.set(0, 4, 0);
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matrix.set(0, 5, 1);
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assertEquals(3, MaskUtil.applyMaskPenaltyRule1(matrix));
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matrix.set(0, 5, 0);
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assertEquals(4, MaskUtil.applyMaskPenaltyRule1(matrix));
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}
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@Test
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public void testApplyMaskPenaltyRule2() {
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ByteMatrix matrix = new ByteMatrix(1, 1);
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matrix.set(0, 0, 0);
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assertEquals(0, MaskUtil.applyMaskPenaltyRule2(matrix));
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matrix = new ByteMatrix(2, 2);
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matrix.set(0, 0, 0);
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matrix.set(1, 0, 0);
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matrix.set(0, 1, 0);
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matrix.set(1, 1, 1);
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assertEquals(0, MaskUtil.applyMaskPenaltyRule2(matrix));
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matrix = new ByteMatrix(2, 2);
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matrix.set(0, 0, 0);
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matrix.set(1, 0, 0);
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matrix.set(0, 1, 0);
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matrix.set(1, 1, 0);
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assertEquals(3, MaskUtil.applyMaskPenaltyRule2(matrix));
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matrix = new ByteMatrix(3, 3);
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matrix.set(0, 0, 0);
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matrix.set(1, 0, 0);
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matrix.set(2, 0, 0);
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matrix.set(0, 1, 0);
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matrix.set(1, 1, 0);
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matrix.set(2, 1, 0);
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matrix.set(0, 2, 0);
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matrix.set(1, 2, 0);
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matrix.set(2, 2, 0);
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// Four instances of 2x2 blocks.
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assertEquals(3 * 4, MaskUtil.applyMaskPenaltyRule2(matrix));
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}
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@Test
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public void testApplyMaskPenaltyRule3() {
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// Horizontal 00001011101.
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ByteMatrix matrix = new ByteMatrix(11, 1);
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matrix.set(0, 0, 0);
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matrix.set(1, 0, 0);
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matrix.set(2, 0, 0);
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matrix.set(3, 0, 0);
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matrix.set(4, 0, 1);
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matrix.set(5, 0, 0);
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matrix.set(6, 0, 1);
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matrix.set(7, 0, 1);
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matrix.set(8, 0, 1);
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matrix.set(9, 0, 0);
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matrix.set(10, 0, 1);
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assertEquals(40, MaskUtil.applyMaskPenaltyRule3(matrix));
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// Horizontal 10111010000.
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matrix = new ByteMatrix(11, 1);
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matrix.set(0, 0, 1);
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matrix.set(1, 0, 0);
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matrix.set(2, 0, 1);
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matrix.set(3, 0, 1);
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matrix.set(4, 0, 1);
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matrix.set(5, 0, 0);
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matrix.set(6, 0, 1);
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matrix.set(7, 0, 0);
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matrix.set(8, 0, 0);
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matrix.set(9, 0, 0);
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matrix.set(10, 0, 0);
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assertEquals(40, MaskUtil.applyMaskPenaltyRule3(matrix));
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// Horizontal 1011101.
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matrix = new ByteMatrix(7, 1);
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matrix.set(0, 0, 1);
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matrix.set(1, 0, 0);
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matrix.set(2, 0, 1);
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matrix.set(3, 0, 1);
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matrix.set(4, 0, 1);
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matrix.set(5, 0, 0);
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matrix.set(6, 0, 1);
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assertEquals(0, MaskUtil.applyMaskPenaltyRule3(matrix));
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// Vertical 00001011101.
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matrix = new ByteMatrix(1, 11);
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matrix.set(0, 0, 0);
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matrix.set(0, 1, 0);
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matrix.set(0, 2, 0);
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matrix.set(0, 3, 0);
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matrix.set(0, 4, 1);
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matrix.set(0, 5, 0);
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matrix.set(0, 6, 1);
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matrix.set(0, 7, 1);
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matrix.set(0, 8, 1);
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matrix.set(0, 9, 0);
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matrix.set(0, 10, 1);
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assertEquals(40, MaskUtil.applyMaskPenaltyRule3(matrix));
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// Vertical 10111010000.
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matrix = new ByteMatrix(1, 11);
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matrix.set(0, 0, 1);
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matrix.set(0, 1, 0);
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matrix.set(0, 2, 1);
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matrix.set(0, 3, 1);
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matrix.set(0, 4, 1);
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matrix.set(0, 5, 0);
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matrix.set(0, 6, 1);
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matrix.set(0, 7, 0);
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matrix.set(0, 8, 0);
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matrix.set(0, 9, 0);
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matrix.set(0, 10, 0);
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// Vertical 1011101.
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matrix = new ByteMatrix(1, 7);
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matrix.set(0, 0, 1);
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matrix.set(0, 1, 0);
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matrix.set(0, 2, 1);
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matrix.set(0, 3, 1);
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matrix.set(0, 4, 1);
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matrix.set(0, 5, 0);
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matrix.set(0, 6, 1);
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assertEquals(0, MaskUtil.applyMaskPenaltyRule3(matrix));
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}
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@Test
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public void testApplyMaskPenaltyRule4() {
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// Dark cell ratio = 0%
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ByteMatrix matrix = new ByteMatrix(1, 1);
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matrix.set(0, 0, 0);
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assertEquals(100, MaskUtil.applyMaskPenaltyRule4(matrix));
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// Dark cell ratio = 5%
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matrix = new ByteMatrix(2, 1);
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matrix.set(0, 0, 0);
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matrix.set(0, 0, 1);
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assertEquals(0, MaskUtil.applyMaskPenaltyRule4(matrix));
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// Dark cell ratio = 66.67%
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matrix = new ByteMatrix(6, 1);
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matrix.set(0, 0, 0);
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matrix.set(1, 0, 1);
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matrix.set(2, 0, 1);
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matrix.set(3, 0, 1);
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matrix.set(4, 0, 1);
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matrix.set(5, 0, 0);
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assertEquals(30, MaskUtil.applyMaskPenaltyRule4(matrix));
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}
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private static boolean testGetDataMaskBitInternal(int maskPattern, int[][] expected) {
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for (int x = 0; x < 6; ++x) {
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for (int y = 0; y < 6; ++y) {
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if ((expected[y][x] == 1) != MaskUtil.getDataMaskBit(maskPattern, x, y)) {
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return false;
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}
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}
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}
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return true;
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}
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// See mask patterns on the page 43 of JISX0510:2004.
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@Test
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public void testGetDataMaskBit() {
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int[][] mask0 = {
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{1, 0, 1, 0, 1, 0},
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{0, 1, 0, 1, 0, 1},
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{1, 0, 1, 0, 1, 0},
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{0, 1, 0, 1, 0, 1},
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{1, 0, 1, 0, 1, 0},
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{0, 1, 0, 1, 0, 1},
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};
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assertTrue(testGetDataMaskBitInternal(0, mask0));
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int[][] mask1 = {
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{1, 1, 1, 1, 1, 1},
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{0, 0, 0, 0, 0, 0},
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{1, 1, 1, 1, 1, 1},
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{0, 0, 0, 0, 0, 0},
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{1, 1, 1, 1, 1, 1},
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{0, 0, 0, 0, 0, 0},
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};
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assertTrue(testGetDataMaskBitInternal(1, mask1));
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int[][] mask2 = {
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{1, 0, 0, 1, 0, 0},
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{1, 0, 0, 1, 0, 0},
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{1, 0, 0, 1, 0, 0},
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{1, 0, 0, 1, 0, 0},
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{1, 0, 0, 1, 0, 0},
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{1, 0, 0, 1, 0, 0},
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};
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assertTrue(testGetDataMaskBitInternal(2, mask2));
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int[][] mask3 = {
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{1, 0, 0, 1, 0, 0},
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{0, 0, 1, 0, 0, 1},
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{0, 1, 0, 0, 1, 0},
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{1, 0, 0, 1, 0, 0},
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{0, 0, 1, 0, 0, 1},
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{0, 1, 0, 0, 1, 0},
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};
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assertTrue(testGetDataMaskBitInternal(3, mask3));
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int[][] mask4 = {
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{1, 1, 1, 0, 0, 0},
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{1, 1, 1, 0, 0, 0},
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{0, 0, 0, 1, 1, 1},
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{0, 0, 0, 1, 1, 1},
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{1, 1, 1, 0, 0, 0},
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{1, 1, 1, 0, 0, 0},
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};
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assertTrue(testGetDataMaskBitInternal(4, mask4));
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int[][] mask5 = {
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{1, 1, 1, 1, 1, 1},
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{1, 0, 0, 0, 0, 0},
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{1, 0, 0, 1, 0, 0},
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{1, 0, 1, 0, 1, 0},
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{1, 0, 0, 1, 0, 0},
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{1, 0, 0, 0, 0, 0},
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};
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assertTrue(testGetDataMaskBitInternal(5, mask5));
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int[][] mask6 = {
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{1, 1, 1, 1, 1, 1},
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{1, 1, 1, 0, 0, 0},
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{1, 1, 0, 1, 1, 0},
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{1, 0, 1, 0, 1, 0},
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{1, 0, 1, 1, 0, 1},
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{1, 0, 0, 0, 1, 1},
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};
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assertTrue(testGetDataMaskBitInternal(6, mask6));
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int[][] mask7 = {
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{1, 0, 1, 0, 1, 0},
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{0, 0, 0, 1, 1, 1},
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{1, 0, 0, 0, 1, 1},
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{0, 1, 0, 1, 0, 1},
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{1, 1, 1, 0, 0, 0},
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{0, 1, 1, 1, 0, 0},
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};
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assertTrue(testGetDataMaskBitInternal(7, mask7));
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}
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}
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