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author | Dan Sinclair <dsinclair@chromium.org> | 2016-03-14 14:14:16 -0400 |
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committer | Dan Sinclair <dsinclair@chromium.org> | 2016-03-14 14:14:16 -0400 |
commit | 1770c021cf998ff1b33855b1397f6ea8ff9f7cd7 (patch) | |
tree | 285e39abd4b5872d8cd632b9e331b0667fdc3eae /xfa/fxbarcode/qrcode/BC_QRCoderBitVector.cpp | |
parent | f766ad219f66543654520f6a1955836f519e26d1 (diff) | |
download | pdfium-1770c021cf998ff1b33855b1397f6ea8ff9f7cd7.tar.xz |
Move xfa/src up to xfa/.
This CL moves the xfa/src files up to the xfa/ directory and fixes the includes,
include guards, and build files.
R=tsepez@chromium.org
Review URL: https://codereview.chromium.org/1803723002 .
Diffstat (limited to 'xfa/fxbarcode/qrcode/BC_QRCoderBitVector.cpp')
-rw-r--r-- | xfa/fxbarcode/qrcode/BC_QRCoderBitVector.cpp | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderBitVector.cpp b/xfa/fxbarcode/qrcode/BC_QRCoderBitVector.cpp new file mode 100644 index 0000000000..a225f61fbb --- /dev/null +++ b/xfa/fxbarcode/qrcode/BC_QRCoderBitVector.cpp @@ -0,0 +1,124 @@ +// 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 "core/include/fxcrt/fx_memory.h" +#include "xfa/fxbarcode/qrcode/BC_QRCoderBitVector.h" +#include "xfa/fxbarcode/utils.h" + +CBC_QRCoderBitVector::CBC_QRCoderBitVector() { + m_sizeInBits = 0; + m_size = 32; +} +void CBC_QRCoderBitVector::Init() { + m_array = FX_Alloc(uint8_t, m_size); +} +CBC_QRCoderBitVector::~CBC_QRCoderBitVector() { + FX_Free(m_array); +} +void CBC_QRCoderBitVector::Clear() { + FX_Free(m_array); + m_sizeInBits = 0; + m_size = 32; + m_array = FX_Alloc(uint8_t, m_size); +} +int32_t CBC_QRCoderBitVector::At(int32_t index, int32_t& e) { + if (index < 0 || index >= m_sizeInBits) { + e = BCExceptionBadIndexException; + BC_EXCEPTION_CHECK_ReturnValue(e, 0); + } + int32_t value = m_array[index >> 3] & 0xff; + return (value >> (7 - (index & 0x7))) & 1; +} +int32_t CBC_QRCoderBitVector::sizeInBytes() { + return (m_sizeInBits + 7) >> 3; +} +int32_t CBC_QRCoderBitVector::Size() { + return m_sizeInBits; +} +void CBC_QRCoderBitVector::AppendBit(int32_t bit, int32_t& e) { + if (!(bit == 0 || bit == 1)) { + e = BCExceptionBadValueException; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + int32_t numBitsInLastByte = m_sizeInBits & 0x7; + if (numBitsInLastByte == 0) { + AppendByte(0); + m_sizeInBits -= 8; + } + m_array[m_sizeInBits >> 3] |= (bit << (7 - numBitsInLastByte)); + ++m_sizeInBits; +} +void CBC_QRCoderBitVector::AppendBits(int32_t value, + int32_t numBits, + int32_t& e) { + if (numBits < 0 || numBits > 32) { + e = BCExceptionBadNumBitsException; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + int32_t numBitsLeft = numBits; + while (numBitsLeft > 0) { + if ((m_sizeInBits & 0x7) == 0 && numBitsLeft >= 8) { + int32_t newByte = (value >> (numBitsLeft - 8)) & 0xff; + AppendByte(newByte); + numBitsLeft -= 8; + } else { + int32_t bit = (value >> (numBitsLeft - 1)) & 1; + AppendBit(bit, e); + BC_EXCEPTION_CHECK_ReturnVoid(e); + --numBitsLeft; + } + } +} +void CBC_QRCoderBitVector::AppendBitVector(CBC_QRCoderBitVector* bits, + int32_t& e) { + int32_t size = bits->Size(); + for (int32_t i = 0; i < size; i++) { + int32_t num = bits->At(i, e); + BC_EXCEPTION_CHECK_ReturnVoid(e); + AppendBit(num, e); + BC_EXCEPTION_CHECK_ReturnVoid(e) + } +} +void CBC_QRCoderBitVector::XOR(CBC_QRCoderBitVector* other, int32_t& e) { + if (m_sizeInBits != other->Size()) { + e = BCExceptioncanNotOperatexorOperator; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + int32_t sizeInBytes = (m_sizeInBits + 7) >> 3; + for (int32_t i = 0; i < sizeInBytes; ++i) { + m_array[i] ^= (other->GetArray())[i]; + } +} +uint8_t* CBC_QRCoderBitVector::GetArray() { + return m_array; +} +void CBC_QRCoderBitVector::AppendByte(int32_t value) { + if ((m_sizeInBits >> 3) == m_size) { + uint8_t* newArray = FX_Alloc(uint8_t, m_size << 1); + FXSYS_memcpy(newArray, m_array, m_size); + FX_Free(m_array); + m_array = newArray; + m_size = m_size << 1; + } + m_array[m_sizeInBits >> 3] = (uint8_t)value; + m_sizeInBits += 8; +} |