1 files changed, 0 insertions, 171 deletions
diff --git a/libraries/zxing/src/com/google/zxing/qrcode/decoder/FormatInformation.java b/libraries/zxing/src/com/google/zxing/qrcode/decoder/FormatInformation.java
deleted file mode 100644
index 1b76b0de5..000000000
--- a/libraries/zxing/src/com/google/zxing/qrcode/decoder/FormatInformation.java
+++ /dev/null
@@ -1,171 +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.qrcode.decoder;
-
-/**
- * <p>Encapsulates a QR Code's format information, including the data mask used and
- * error correction level.</p>
- *
- * @author Sean Owen
- * @see DataMask
- * @see ErrorCorrectionLevel
- */
-final class FormatInformation {
-
-  private static final int FORMAT_INFO_MASK_QR = 0x5412;
-
-  /**
-   * See ISO 18004:2006, Annex C, Table C.1
-   */
-  private static final int[][] FORMAT_INFO_DECODE_LOOKUP = {
-      {0x5412, 0x00},
-      {0x5125, 0x01},
-      {0x5E7C, 0x02},
-      {0x5B4B, 0x03},
-      {0x45F9, 0x04},
-      {0x40CE, 0x05},
-      {0x4F97, 0x06},
-      {0x4AA0, 0x07},
-      {0x77C4, 0x08},
-      {0x72F3, 0x09},
-      {0x7DAA, 0x0A},
-      {0x789D, 0x0B},
-      {0x662F, 0x0C},
-      {0x6318, 0x0D},
-      {0x6C41, 0x0E},
-      {0x6976, 0x0F},
-      {0x1689, 0x10},
-      {0x13BE, 0x11},
-      {0x1CE7, 0x12},
-      {0x19D0, 0x13},
-      {0x0762, 0x14},
-      {0x0255, 0x15},
-      {0x0D0C, 0x16},
-      {0x083B, 0x17},
-      {0x355F, 0x18},
-      {0x3068, 0x19},
-      {0x3F31, 0x1A},
-      {0x3A06, 0x1B},
-      {0x24B4, 0x1C},
-      {0x2183, 0x1D},
-      {0x2EDA, 0x1E},
-      {0x2BED, 0x1F},
-  };
-
-  /**
-   * Offset i holds the number of 1 bits in the binary representation of i
-   */
-  private static final int[] BITS_SET_IN_HALF_BYTE =
-      {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
-
-  private final ErrorCorrectionLevel errorCorrectionLevel;
-  private final byte dataMask;
-
-  private FormatInformation(int formatInfo) {
-    // Bits 3,4
-    errorCorrectionLevel = ErrorCorrectionLevel.forBits((formatInfo >> 3) & 0x03);
-    // Bottom 3 bits
-    dataMask = (byte) (formatInfo & 0x07);
-  }
-
-  static int numBitsDiffering(int a, int b) {
-    a ^= b; // a now has a 1 bit exactly where its bit differs with b's
-    // Count bits set quickly with a series of lookups:
-    return BITS_SET_IN_HALF_BYTE[a & 0x0F] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 4 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 8 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 12 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 16 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 20 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 24 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 28 & 0x0F)];
-  }
-
-  /**
-   * @param maskedFormatInfo1 format info indicator, with mask still applied
-   * @param maskedFormatInfo2 second copy of same info; both are checked at the same time
-   *  to establish best match
-   * @return information about the format it specifies, or <code>null</code>
-   *  if doesn't seem to match any known pattern
-   */
-  static FormatInformation decodeFormatInformation(int maskedFormatInfo1, int maskedFormatInfo2) {
-    FormatInformation formatInfo = doDecodeFormatInformation(maskedFormatInfo1, maskedFormatInfo2);
-    if (formatInfo != null) {
-      return formatInfo;
-    }
-    // Should return null, but, some QR codes apparently
-    // do not mask this info. Try again by actually masking the pattern
-    // first
-    return doDecodeFormatInformation(maskedFormatInfo1 ^ FORMAT_INFO_MASK_QR,
-                                     maskedFormatInfo2 ^ FORMAT_INFO_MASK_QR);
-  }
-
-  private static FormatInformation doDecodeFormatInformation(int maskedFormatInfo1, int maskedFormatInfo2) {
-    // Find the int in FORMAT_INFO_DECODE_LOOKUP with fewest bits differing
-    int bestDifference = Integer.MAX_VALUE;
-    int bestFormatInfo = 0;
-    for (int i = 0; i < FORMAT_INFO_DECODE_LOOKUP.length; i++) {
-      int[] decodeInfo = FORMAT_INFO_DECODE_LOOKUP[i];
-      int targetInfo = decodeInfo[0];
-      if (targetInfo == maskedFormatInfo1 || targetInfo == maskedFormatInfo2) {
-        // Found an exact match
-        return new FormatInformation(decodeInfo[1]);
-      }
-      int bitsDifference = numBitsDiffering(maskedFormatInfo1, targetInfo);
-      if (bitsDifference < bestDifference) {
-        bestFormatInfo = decodeInfo[1];
-        bestDifference = bitsDifference;
-      }
-      if (maskedFormatInfo1 != maskedFormatInfo2) {
-        // also try the other option
-        bitsDifference = numBitsDiffering(maskedFormatInfo2, targetInfo);
-        if (bitsDifference < bestDifference) {
-          bestFormatInfo = decodeInfo[1];
-          bestDifference = bitsDifference;
-        }
-      }
-    }
-    // Hamming distance of the 32 masked codes is 7, by construction, so <= 3 bits
-    // differing means we found a match
-    if (bestDifference <= 3) {
-      return new FormatInformation(bestFormatInfo);
-    }
-    return null;
-  }
-
-  ErrorCorrectionLevel getErrorCorrectionLevel() {
-    return errorCorrectionLevel;
-  }
-
-  byte getDataMask() {
-    return dataMask;
-  }
-
-  public int hashCode() {
-    return (errorCorrectionLevel.ordinal() << 3) | (int) dataMask;
-  }
-
-  public boolean equals(Object o) {
-    if (!(o instanceof FormatInformation)) {
-      return false;
-    }
-    FormatInformation other = (FormatInformation) o;
-    return this.errorCorrectionLevel == other.errorCorrectionLevel &&
-        this.dataMask == other.dataMask;
-  }
-
-}