diff options
Diffstat (limited to 'xfa/src/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.cpp | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/xfa/src/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.cpp b/xfa/src/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.cpp new file mode 100644 index 0000000000..0fe4d1b2b6 --- /dev/null +++ b/xfa/src/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.cpp @@ -0,0 +1,254 @@ +// 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
+// Original code is licensed as follows:
+/*
+ * 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.
+ */
+
+#include "../barcode.h"
+#include "../BC_UtilCodingConvert.h"
+#include "../common/BC_CommonBitSource.h"
+#include "../common/BC_CommonECI.h"
+#include "../common/BC_CommonCharacterSetECI.h"
+#include "../common/BC_CommonDecoderResult.h"
+#include "BC_QRCoderMode.h"
+#include "BC_QRDecodedBitStreamParser.h"
+FX_LPCSTR CBC_QRDecodedBitStreamParser::UTF_8 = "utf8";
+const FX_CHAR CBC_QRDecodedBitStreamParser::ALPHANUMERIC_CHARS[45] = {
+ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B',
+ 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
+ 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
+ ' ', '$', '%', '*', '+', '-', '.', '/', ':'
+};
+CBC_QRDecodedBitStreamParser::CBC_QRDecodedBitStreamParser()
+{
+}
+CBC_QRDecodedBitStreamParser::~CBC_QRDecodedBitStreamParser()
+{
+}
+CBC_CommonDecoderResult* CBC_QRDecodedBitStreamParser::Decode(CFX_ByteArray *bytes, CBC_QRCoderVersion *version,
+ CBC_QRCoderErrorCorrectionLevel* ecLevel, FX_INT32 byteModeDecode, FX_INT32 &e)
+{
+ CBC_CommonBitSource bits(bytes);
+ CFX_ByteString result;
+ CBC_CommonCharacterSetECI* currentCharacterSetECI = NULL;
+ FX_BOOL fc1Infact = FALSE;
+ CFX_Int32Array byteSegments;
+ CBC_QRCoderMode* mode = NULL;
+ do {
+ if(bits.Available() < 4) {
+ mode = CBC_QRCoderMode::sTERMINATOR;
+ } else {
+ FX_INT32 iTemp1 = bits.ReadBits(4, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ mode = CBC_QRCoderMode::ForBits(iTemp1, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ if(mode == NULL) {
+ e = BCExceptionUnSupportMode;
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ }
+ }
+ if(!(mode == CBC_QRCoderMode::sTERMINATOR)) {
+ if(mode == CBC_QRCoderMode::sFNC1_FIRST_POSITION || mode == CBC_QRCoderMode::sFNC1_SECOND_POSITION) {
+ fc1Infact = TRUE;
+ } else if(mode == CBC_QRCoderMode::sSTRUCTURED_APPEND) {
+ bits.ReadBits(16, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ } else if(mode == CBC_QRCoderMode::sECI) {
+ FX_INT32 value = ParseECIValue(&bits, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ currentCharacterSetECI = CBC_CommonCharacterSetECI::GetCharacterSetECIByValue(value);
+ } else {
+ if(mode == CBC_QRCoderMode::sGBK) {
+ bits.ReadBits(4, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ }
+ FX_INT32 numBits = mode->GetCharacterCountBits(version, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ FX_INT32 count = bits.ReadBits(numBits, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ if(mode == CBC_QRCoderMode::sNUMERIC) {
+ DecodeNumericSegment(&bits, result, count, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ } else if(mode == CBC_QRCoderMode::sALPHANUMERIC) {
+ DecodeAlphanumericSegment(&bits, result, count, fc1Infact, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ } else if(mode == CBC_QRCoderMode::sBYTE) {
+ DecodeByteSegment(&bits, result, count, currentCharacterSetECI, &byteSegments, byteModeDecode, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ } else if(mode == CBC_QRCoderMode::sGBK) {
+ DecodeGBKSegment(&bits, result, count, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ } else if(mode == CBC_QRCoderMode::sKANJI) {
+ DecodeKanjiSegment(&bits, result, count, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ } else {
+ e = BCExceptionUnSupportMode;
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ }
+ }
+ }
+ } while (!(mode == CBC_QRCoderMode::sTERMINATOR));
+ CBC_CommonDecoderResult *tempCd = FX_NEW CBC_CommonDecoderResult();
+ tempCd->Init(*bytes, result, byteSegments, ecLevel, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ return tempCd;
+}
+void CBC_QRDecodedBitStreamParser::DecodeGBKSegment(CBC_CommonBitSource* bits, CFX_ByteString &result, FX_INT32 count, FX_INT32 &e)
+{
+ CFX_ByteString buffer;
+ FX_INT32 offset = 0;
+ while (count > 0) {
+ FX_INT32 twoBytes = bits->ReadBits(13, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ FX_INT32 assembledTwoBytes = ((twoBytes / 0x060) << 8) | (twoBytes % 0x060);
+ if (assembledTwoBytes <= 0x0095d) {
+ assembledTwoBytes += 0x0a1a1;
+ } else {
+ assembledTwoBytes += 0x0a6a1;
+ }
+ buffer += (FX_BYTE) (assembledTwoBytes >> 8);
+ buffer += (FX_BYTE) assembledTwoBytes;
+ count--;
+ }
+ CBC_UtilCodingConvert::LocaleToUtf8(buffer, result);
+}
+void CBC_QRDecodedBitStreamParser::DecodeKanjiSegment(CBC_CommonBitSource* bits, CFX_ByteString &result, FX_INT32 count, FX_INT32 &e)
+{
+ CFX_ByteString buffer;
+ while (count > 0) {
+ FX_INT32 twoBytes = bits->ReadBits(13, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ FX_INT32 assembledTwoBytes = ((twoBytes / 0x0c0) << 8) | (twoBytes % 0x0c0);
+ if (assembledTwoBytes <= 0x01f00) {
+ assembledTwoBytes += 0x08140;
+ } else {
+ assembledTwoBytes += 0x0c140;
+ }
+ buffer += (FX_BYTE) (assembledTwoBytes >> 8);
+ buffer += (FX_BYTE) assembledTwoBytes;
+ count--;
+ }
+ CBC_UtilCodingConvert::LocaleToUtf8(buffer, result);
+}
+void CBC_QRDecodedBitStreamParser::DecodeByteSegment(CBC_CommonBitSource* bits, CFX_ByteString &result, FX_INT32 count,
+ CBC_CommonCharacterSetECI *currentCharacterSetECI,
+ CFX_Int32Array *byteSegments, FX_INT32 byteModeDecode, FX_INT32 &e)
+{
+ if(count < 0) {
+ e = BCExceptionNotFound;
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ }
+ if((count << 3) > bits->Available()) {
+ e = BCExceptionRead;
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ }
+ FX_BYTE *readBytes = FX_Alloc(FX_BYTE, count);
+ FXSYS_memset32(readBytes, 0x00, count);
+ for(FX_INT32 i = 0; i < count; i++) {
+ readBytes[i] = (FX_BYTE) bits->ReadBits(8, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ }
+ CFX_ByteString bs(readBytes, count);
+ result += bs;
+ FX_Free(readBytes);
+}
+void CBC_QRDecodedBitStreamParser::DecodeAlphanumericSegment(CBC_CommonBitSource* bits,
+ CFX_ByteString &result, FX_INT32 count, FX_BOOL fac1InEffect, FX_INT32 &e)
+{
+ FX_INT32 start = result.GetLength();
+ while(count > 1) {
+ FX_INT32 nextTwoCharsBits = bits->ReadBits(11, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[nextTwoCharsBits / 45]);
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[nextTwoCharsBits % 45]);
+ count -= 2;
+ }
+ if(count == 1) {
+ FX_INT32 itemp = bits->ReadBits(6, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[itemp]);
+ }
+ if(fac1InEffect) {
+ for(FX_INT32 i = start; i < result.GetLength(); i++) {
+ if(result[i] == '%') {
+ if((i < result.GetLength() - 1) && result[i + 1] == '%') {
+ result.Delete(i + 1, 1);
+ } else {
+ result.SetAt(i, (FX_CHAR)0x1d);
+ }
+ }
+ }
+ }
+}
+void CBC_QRDecodedBitStreamParser::DecodeNumericSegment(CBC_CommonBitSource* bits, CFX_ByteString &result, FX_INT32 count, FX_INT32 &e)
+{
+ while(count >= 3) {
+ FX_INT32 threeDigitsBits = bits->ReadBits(10, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ if(threeDigitsBits >= 1000) {
+ e = BCExceptionRead;
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ }
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[threeDigitsBits / 100]);
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[(threeDigitsBits / 10) % 10]);
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[threeDigitsBits % 10]);
+ count -= 3;
+ }
+ if(count == 2) {
+ FX_INT32 twoDigitBits = bits->ReadBits(7, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ if(twoDigitBits >= 100) {
+ e = BCExceptionRead;
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ }
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[twoDigitBits / 10]);
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[twoDigitBits % 10]);
+ } else if(count == 1) {
+ FX_INT32 digitBits = bits->ReadBits(4, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ if(digitBits >= 10) {
+ e = BCExceptionRead;
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ }
+ BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[digitBits]);
+ }
+}
+const CFX_ByteString CBC_QRDecodedBitStreamParser::GuessEncoding(CFX_ByteArray *bytes)
+{
+ return *UTF_8;
+}
+FX_INT32 CBC_QRDecodedBitStreamParser::ParseECIValue(CBC_CommonBitSource* bits, FX_INT32 &e)
+{
+ FX_INT32 firstByte = bits->ReadBits(8, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+ if((firstByte & 0x80) == 0) {
+ return firstByte & 0x7f;
+ } else if((firstByte & 0xc0) == 0x80) {
+ FX_INT32 secondByte = bits->ReadBits(8, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+ return ((firstByte & 0x3f) << 8) | secondByte;
+ } else if((firstByte & 0xe0) == 0xc0) {
+ FX_INT32 secondThirdByte = bits->ReadBits(16, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+ return ((firstByte & 0x1f) << 16) | secondThirdByte;
+ }
+ e = BCExceptionBadECI;
+ BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+ return 0;
+}
|