diff options
Diffstat (limited to 'xfa/fxbarcode/common/BC_CommonBitSource.cpp')
-rw-r--r-- | xfa/fxbarcode/common/BC_CommonBitSource.cpp | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/xfa/fxbarcode/common/BC_CommonBitSource.cpp b/xfa/fxbarcode/common/BC_CommonBitSource.cpp deleted file mode 100644 index af91d5e0bd..0000000000 --- a/xfa/fxbarcode/common/BC_CommonBitSource.cpp +++ /dev/null @@ -1,71 +0,0 @@ -// 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 "xfa/fxbarcode/common/BC_CommonBitSource.h" - -CBC_CommonBitSource::CBC_CommonBitSource(CFX_ByteArray* bytes) { - m_bytes.Copy((*bytes)); - m_bitOffset = 0; - m_byteOffset = 0; -} -CBC_CommonBitSource::~CBC_CommonBitSource() {} -int32_t CBC_CommonBitSource::ReadBits(int32_t numBits, int32_t& e) { - if (numBits < 1 || numBits > 32) { - e = BCExceptionIllegalArgument; - return 0; - } - int32_t result = 0; - if (m_bitOffset > 0) { - int32_t bitsLeft = 8 - m_bitOffset; - int32_t toRead = numBits < bitsLeft ? numBits : bitsLeft; - int32_t bitsToNotRead = bitsLeft - toRead; - int32_t mask = (0xff >> (8 - toRead)) << bitsToNotRead; - result = (m_bytes[m_byteOffset] & mask) >> bitsToNotRead; - numBits -= toRead; - m_bitOffset += toRead; - if (m_bitOffset == 8) { - m_bitOffset = 0; - m_byteOffset++; - } - } - if (numBits > 0) { - while (numBits >= 8) { - result = (result << 8) | (m_bytes[m_byteOffset] & 0xff); - m_byteOffset++; - numBits -= 8; - } - if (numBits > 0) { - int32_t bitsToNotRead = 8 - numBits; - int32_t mask = (0xff >> bitsToNotRead) << bitsToNotRead; - result = (result << numBits) | - ((m_bytes[m_byteOffset] & mask) >> bitsToNotRead); - m_bitOffset += numBits; - } - } - return result; -} -int32_t CBC_CommonBitSource::Available() { - return 8 * (m_bytes.GetSize() - m_byteOffset) - m_bitOffset; -} -int32_t CBC_CommonBitSource::getByteOffset() { - return m_byteOffset; -} |