1 files changed, 0 insertions, 188 deletions
diff --git a/libraries/zxing/src/com/google/zxing/common/reedsolomon/GenericGF.java b/libraries/zxing/src/com/google/zxing/common/reedsolomon/GenericGF.java
deleted file mode 100644
index 859c379ee..000000000
--- a/libraries/zxing/src/com/google/zxing/common/reedsolomon/GenericGF.java
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright 2007 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.google.zxing.common.reedsolomon;
-
-/**
- * <p>This class contains utility methods for performing mathematical operations over
- * the Galois Fields. Operations use a given primitive polynomial in calculations.</p>
- *
- * <p>Throughout this package, elements of the GF are represented as an <code>int</code>
- * for convenience and speed (but at the cost of memory).
- * </p>
- *
- * @author Sean Owen
- * @author David Olivier
- */
-public final class GenericGF {
-
-  public static final GenericGF AZTEC_DATA_12 = new GenericGF(0x1069, 4096); // x^12 + x^6 + x^5 + x^3 + 1
-  public static final GenericGF AZTEC_DATA_10 = new GenericGF(0x409, 1024); // x^10 + x^3 + 1
-  public static final GenericGF AZTEC_DATA_6 = new GenericGF(0x43, 64); // x^6 + x + 1
-  public static final GenericGF AZTEC_PARAM = new GenericGF(0x13, 16); // x^4 + x + 1
-  public static final GenericGF QR_CODE_FIELD_256 = new GenericGF(0x011D, 256); // x^8 + x^4 + x^3 + x^2 + 1
-  public static final GenericGF DATA_MATRIX_FIELD_256 = new GenericGF(0x012D, 256); // x^8 + x^5 + x^3 + x^2 + 1
-  public static final GenericGF AZTEC_DATA_8 = DATA_MATRIX_FIELD_256;
-
-  private static final int INITIALIZATION_THRESHOLD = 0;
-
-  private int[] expTable;
-  private int[] logTable;
-  private GenericGFPoly zero;
-  private GenericGFPoly one;
-  private final int size;
-  private final int primitive;
-  private boolean initialized = false;
-
-  /**
-   * Create a representation of GF(size) using the given primitive polynomial.
-   *
-   * @param primitive irreducible polynomial whose coefficients are represented by
-   *  the bits of an int, where the least-significant bit represents the constant
-   *  coefficient
-   */
-  public GenericGF(int primitive, int size) {
-  	this.primitive = primitive;
-    this.size = size;
-    
-    if (size <= INITIALIZATION_THRESHOLD){
-    	initialize();
-    }
-  }
-
-  private void initialize(){
-    expTable = new int[size];
-    logTable = new int[size];
-    int x = 1;
-    for (int i = 0; i < size; i++) {
-      expTable[i] = x;
-      x <<= 1; // x = x * 2; we're assuming the generator alpha is 2
-      if (x >= size) {
-        x ^= primitive;
-        x &= size-1;
-      }
-    }
-    for (int i = 0; i < size-1; i++) {
-      logTable[expTable[i]] = i;
-    }
-    // logTable[0] == 0 but this should never be used
-    zero = new GenericGFPoly(this, new int[]{0});
-    one = new GenericGFPoly(this, new int[]{1});
-    initialized = true;
-  }
-  
-  private void checkInit(){
-  	if (!initialized) {
-      initialize();
-    }
-  }
-  
-  GenericGFPoly getZero() {
-  	checkInit();
-  	
-    return zero;
-  }
-
-  GenericGFPoly getOne() {
-  	checkInit();
-  	
-    return one;
-  }
-
-  /**
-   * @return the monomial representing coefficient * x^degree
-   */
-  GenericGFPoly buildMonomial(int degree, int coefficient) {
-  	checkInit();
-  	
-    if (degree < 0) {
-      throw new IllegalArgumentException();
-    }
-    if (coefficient == 0) {
-      return zero;
-    }
-    int[] coefficients = new int[degree + 1];
-    coefficients[0] = coefficient;
-    return new GenericGFPoly(this, coefficients);
-  }
-
-  /**
-   * Implements both addition and subtraction -- they are the same in GF(size).
-   *
-   * @return sum/difference of a and b
-   */
-  static int addOrSubtract(int a, int b) {
-    return a ^ b;
-  }
-
-  /**
-   * @return 2 to the power of a in GF(size)
-   */
-  int exp(int a) {
-  	checkInit();
-  	
-    return expTable[a];
-  }
-
-  /**
-   * @return base 2 log of a in GF(size)
-   */
-  int log(int a) {
-  	checkInit();
-  	
-    if (a == 0) {
-      throw new IllegalArgumentException();
-    }
-    return logTable[a];
-  }
-
-  /**
-   * @return multiplicative inverse of a
-   */
-  int inverse(int a) {
-  	checkInit();
-  	
-    if (a == 0) {
-      throw new ArithmeticException();
-    }
-    return expTable[size - logTable[a] - 1];
-  }
-
-  /**
-   * @param a
-   * @param b
-   * @return product of a and b in GF(size)
-   */
-  int multiply(int a, int b) {
-  	checkInit();
-  	
-    if (a == 0 || b == 0) {
-      return 0;
-    }
-    
-    if (a<0 || b <0 || a>=size || b >=size){
-    	a++;
-    }
-    
-    int logSum = logTable[a] + logTable[b];
-    return expTable[(logSum % size) + logSum / size];
-  }
-
-  public int getSize(){
-  	return size;
-  }
-  
-}