1 files changed, 78 insertions, 0 deletions
diff --git a/xfa/src/fxbarcode/src/BC_OnedEAN13Reader.cpp b/xfa/src/fxbarcode/src/BC_OnedEAN13Reader.cpp
new file mode 100644
index 0000000000..a02e936c5c
--- /dev/null
+++ b/xfa/src/fxbarcode/src/BC_OnedEAN13Reader.cpp
@@ -0,0 +1,78 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "barcode.h"
+#include "include/BC_Reader.h"
+#include "include/BC_OneDReader.h"
+#include "include/BC_OneDimReader.h"
+#include "include/BC_CommonBitArray.h"
+#include "include/BC_OnedEAN13Reader.h"
+const FX_INT32 CBC_OnedEAN13Reader::FIRST_DIGIT_ENCODINGS[10] = {
+    0x00, 0x0B, 0x0D, 0xE, 0x13, 0x19, 0x1C, 0x15, 0x16, 0x1A
+};
+CBC_OnedEAN13Reader::CBC_OnedEAN13Reader()
+{
+}
+CBC_OnedEAN13Reader::~CBC_OnedEAN13Reader()
+{
+}
+void CBC_OnedEAN13Reader::DetermineFirstDigit(CFX_ByteString &result, FX_INT32 lgPatternFound, FX_INT32 &e)
+{
+    for (FX_INT32 d = 0; d < 10; d++) {
+        if (lgPatternFound == FIRST_DIGIT_ENCODINGS[d]) {
+            result.Insert(0, (FX_CHAR) ('0' + d));
+            return;
+        }
+    }
+    e = BCExceptionNotFound;
+    BC_EXCEPTION_CHECK_ReturnVoid(e);
+}
+FX_INT32 CBC_OnedEAN13Reader::DecodeMiddle(CBC_CommonBitArray *row, CFX_Int32Array *startRange, CFX_ByteString &resultString, FX_INT32 &e)
+{
+    CFX_Int32Array counters;
+    counters.Add(0);
+    counters.Add(0);
+    counters.Add(0);
+    counters.Add(0);
+    FX_INT32 end = row->GetSize();
+    FX_INT32 rowOffset = (*startRange)[1];
+    FX_INT32 lgPatternFound = 0;
+    for (FX_INT32 x = 0; x < 6 && rowOffset < end; x++) {
+        FX_INT32 bestMatch = DecodeDigit(row, &counters, rowOffset, &(CBC_OneDimReader::L_AND_G_PATTERNS[0][0]), 20, e);
+        BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+        resultString += (FX_CHAR) ('0' + bestMatch % 10);
+        for (FX_INT32 i = 0; i < counters.GetSize(); i++) {
+            rowOffset += counters[i];
+        }
+        if (bestMatch >= 10) {
+            lgPatternFound |= 1 << (5 - x);
+        }
+    }
+    DetermineFirstDigit(resultString, lgPatternFound, e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+    CFX_Int32Array result;
+    result.Add(CBC_OneDimReader::MIDDLE_PATTERN[0]);
+    result.Add(CBC_OneDimReader::MIDDLE_PATTERN[1]);
+    result.Add(CBC_OneDimReader::MIDDLE_PATTERN[2]);
+    result.Add(CBC_OneDimReader::MIDDLE_PATTERN[3]);
+    result.Add(CBC_OneDimReader::MIDDLE_PATTERN[4]);
+    CFX_Int32Array *middleRange = FindGuardPattern(row, rowOffset, TRUE, &result, e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+    rowOffset = (*middleRange)[1];
+    if(middleRange != NULL) {
+        delete middleRange;
+        middleRange = NULL;
+    }
+    for (FX_INT32 Y = 0; Y < 6 && rowOffset < end; Y++) {
+        FX_INT32 bestMatch = DecodeDigit(row, &counters, rowOffset, &(CBC_OneDimReader::L_PATTERNS[0][0]), 10, e);
+        BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+        resultString += (FX_CHAR) ('0' + bestMatch);
+        for (FX_INT32 k = 0; k < counters.GetSize(); k++) {
+            rowOffset += counters[k];
+        }
+    }
+    return rowOffset;
+}