// 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 2006 Jeremias Maerki. | |
* | |
* 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/src/fxbarcode/barcode.h" | |
#include "BC_Encoder.h" | |
#include "BC_DefaultPlacement.h" | |
CBC_DefaultPlacement::CBC_DefaultPlacement(CFX_WideString codewords, | |
int32_t numcols, | |
int32_t numrows) { | |
m_codewords = codewords; | |
m_numcols = numcols; | |
m_numrows = numrows; | |
m_bits.SetSize(numcols * numrows); | |
for (int32_t i = 0; i < numcols * numrows; i++) { | |
m_bits[i] = (uint8_t)2; | |
} | |
} | |
CBC_DefaultPlacement::~CBC_DefaultPlacement() { | |
m_bits.RemoveAll(); | |
} | |
int32_t CBC_DefaultPlacement::getNumrows() { | |
return m_numrows; | |
} | |
int32_t CBC_DefaultPlacement::getNumcols() { | |
return m_numcols; | |
} | |
CFX_ByteArray& CBC_DefaultPlacement::getBits() { | |
return m_bits; | |
} | |
FX_BOOL CBC_DefaultPlacement::getBit(int32_t col, int32_t row) { | |
return m_bits[row * m_numcols + col] == 1; | |
} | |
void CBC_DefaultPlacement::setBit(int32_t col, int32_t row, FX_BOOL bit) { | |
m_bits[row * m_numcols + col] = bit ? (uint8_t)1 : (uint8_t)0; | |
} | |
FX_BOOL CBC_DefaultPlacement::hasBit(int32_t col, int32_t row) { | |
return m_bits[row * m_numcols + col] != 2; | |
} | |
void CBC_DefaultPlacement::place() { | |
int32_t pos = 0; | |
int32_t row = 4; | |
int32_t col = 0; | |
do { | |
if ((row == m_numrows) && (col == 0)) { | |
corner1(pos++); | |
} | |
if ((row == m_numrows - 2) && (col == 0) && ((m_numcols % 4) != 0)) { | |
corner2(pos++); | |
} | |
if ((row == m_numrows - 2) && (col == 0) && (m_numcols % 8 == 4)) { | |
corner3(pos++); | |
} | |
if ((row == m_numrows + 4) && (col == 2) && ((m_numcols % 8) == 0)) { | |
corner4(pos++); | |
} | |
do { | |
if ((row < m_numrows) && (col >= 0) && !hasBit(col, row)) { | |
utah(row, col, pos++); | |
} | |
row -= 2; | |
col += 2; | |
} while (row >= 0 && (col < m_numcols)); | |
row++; | |
col += 3; | |
do { | |
if ((row >= 0) && (col < m_numcols) && !hasBit(col, row)) { | |
utah(row, col, pos++); | |
} | |
row += 2; | |
col -= 2; | |
} while ((row < m_numrows) && (col >= 0)); | |
row += 3; | |
col++; | |
} while ((row < m_numrows) || (col < m_numcols)); | |
if (!hasBit(m_numcols - 1, m_numrows - 1)) { | |
setBit(m_numcols - 1, m_numrows - 1, TRUE); | |
setBit(m_numcols - 2, m_numrows - 2, TRUE); | |
} | |
} | |
void CBC_DefaultPlacement::module(int32_t row, | |
int32_t col, | |
int32_t pos, | |
int32_t bit) { | |
if (row < 0) { | |
row += m_numrows; | |
col += 4 - ((m_numrows + 4) % 8); | |
} | |
if (col < 0) { | |
col += m_numcols; | |
row += 4 - ((m_numcols + 4) % 8); | |
} | |
int32_t v = m_codewords.GetAt(pos); | |
v &= 1 << (8 - bit); | |
setBit(col, row, v != 0); | |
} | |
void CBC_DefaultPlacement::utah(int32_t row, int32_t col, int32_t pos) { | |
module(row - 2, col - 2, pos, 1); | |
module(row - 2, col - 1, pos, 2); | |
module(row - 1, col - 2, pos, 3); | |
module(row - 1, col - 1, pos, 4); | |
module(row - 1, col, pos, 5); | |
module(row, col - 2, pos, 6); | |
module(row, col - 1, pos, 7); | |
module(row, col, pos, 8); | |
} | |
void CBC_DefaultPlacement::corner1(int32_t pos) { | |
module(m_numrows - 1, 0, pos, 1); | |
module(m_numrows - 1, 1, pos, 2); | |
module(m_numrows - 1, 2, pos, 3); | |
module(0, m_numcols - 2, pos, 4); | |
module(0, m_numcols - 1, pos, 5); | |
module(1, m_numcols - 1, pos, 6); | |
module(2, m_numcols - 1, pos, 7); | |
module(3, m_numcols - 1, pos, 8); | |
} | |
void CBC_DefaultPlacement::corner2(int32_t pos) { | |
module(m_numrows - 3, 0, pos, 1); | |
module(m_numrows - 2, 0, pos, 2); | |
module(m_numrows - 1, 0, pos, 3); | |
module(0, m_numcols - 4, pos, 4); | |
module(0, m_numcols - 3, pos, 5); | |
module(0, m_numcols - 2, pos, 6); | |
module(0, m_numcols - 1, pos, 7); | |
module(1, m_numcols - 1, pos, 8); | |
} | |
void CBC_DefaultPlacement::corner3(int32_t pos) { | |
module(m_numrows - 3, 0, pos, 1); | |
module(m_numrows - 2, 0, pos, 2); | |
module(m_numrows - 1, 0, pos, 3); | |
module(0, m_numcols - 2, pos, 4); | |
module(0, m_numcols - 1, pos, 5); | |
module(1, m_numcols - 1, pos, 6); | |
module(2, m_numcols - 1, pos, 7); | |
module(3, m_numcols - 1, pos, 8); | |
} | |
void CBC_DefaultPlacement::corner4(int32_t pos) { | |
module(m_numrows - 1, 0, pos, 1); | |
module(m_numrows - 1, m_numcols - 1, pos, 2); | |
module(0, m_numcols - 3, pos, 3); | |
module(0, m_numcols - 2, pos, 4); | |
module(0, m_numcols - 1, pos, 5); | |
module(1, m_numcols - 3, pos, 6); | |
module(1, m_numcols - 2, pos, 7); | |
module(1, m_numcols - 1, pos, 8); | |
} |