diff options
Diffstat (limited to 'xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp')
-rw-r--r-- | xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp | 260 |
1 files changed, 130 insertions, 130 deletions
diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp index 0957ca51b7..97aa70d786 100644 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp +++ b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp @@ -1,130 +1,130 @@ -// 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/src/fxbarcode/barcode.h"
-#include "BC_ReedSolomonGF256Poly.h"
-#include "BC_ReedSolomonGF256.h"
-CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::QRCodeFild = NULL;
-CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::DataMatrixField = NULL;
-void CBC_ReedSolomonGF256::Initialize() {
- QRCodeFild = new CBC_ReedSolomonGF256(0x011D);
- QRCodeFild->Init();
- DataMatrixField = new CBC_ReedSolomonGF256(0x012D);
- DataMatrixField->Init();
-}
-void CBC_ReedSolomonGF256::Finalize() {
- if (QRCodeFild) {
- delete QRCodeFild;
- }
- QRCodeFild = NULL;
- if (DataMatrixField) {
- delete DataMatrixField;
- }
- DataMatrixField = NULL;
-}
-CBC_ReedSolomonGF256::CBC_ReedSolomonGF256(int32_t primitive) {
- int32_t x = 1;
- for (int32_t j = 0; j < 256; j++) {
- m_expTable[j] = x;
- x <<= 1;
- if (x >= 0x100) {
- x ^= primitive;
- }
- }
- for (int32_t i = 0; i < 255; i++) {
- m_logTable[m_expTable[i]] = i;
- }
- m_logTable[0] = 0;
-}
-void CBC_ReedSolomonGF256::Init() {
- m_zero = new CBC_ReedSolomonGF256Poly(this, 0);
- m_one = new CBC_ReedSolomonGF256Poly(this, 1);
-}
-CBC_ReedSolomonGF256::~CBC_ReedSolomonGF256() {
- if (m_zero != NULL) {
- delete m_zero;
- m_zero = NULL;
- }
- if (m_one != NULL) {
- delete m_one;
- m_one = NULL;
- }
-}
-CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetZero() {
- return m_zero;
-}
-CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetOne() {
- return m_one;
-}
-CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::BuildMonomial(
- int32_t degree,
- int32_t coefficient,
- int32_t& e) {
- if (degree < 0) {
- e = BCExceptionDegreeIsNegative;
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- }
- if (coefficient == 0) {
- CBC_ReedSolomonGF256Poly* temp = m_zero->Clone(e);
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- return temp;
- }
- CFX_Int32Array coefficients;
- coefficients.SetSize(degree + 1);
- coefficients[0] = coefficient;
- CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly();
- temp->Init(this, &coefficients, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- return temp;
-}
-int32_t CBC_ReedSolomonGF256::AddOrSubtract(int32_t a, int32_t b) {
- return a ^ b;
-}
-int32_t CBC_ReedSolomonGF256::Exp(int32_t a) {
- return m_expTable[a];
-}
-int32_t CBC_ReedSolomonGF256::Log(int32_t a, int32_t& e) {
- if (a == 0) {
- e = BCExceptionAIsZero;
- BC_EXCEPTION_CHECK_ReturnValue(e, 0);
- }
- return m_logTable[a];
-}
-int32_t CBC_ReedSolomonGF256::Inverse(int32_t a, int32_t& e) {
- if (a == 0) {
- e = BCExceptionAIsZero;
- BC_EXCEPTION_CHECK_ReturnValue(e, 0);
- }
- return m_expTable[255 - m_logTable[a]];
-}
-int32_t CBC_ReedSolomonGF256::Multiply(int32_t a, int32_t b) {
- if (a == 0 || b == 0) {
- return 0;
- }
- if (a == 1) {
- return b;
- }
- if (b == 1) {
- return a;
- }
- return m_expTable[(m_logTable[a] + m_logTable[b]) % 255];
-}
+// 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/src/fxbarcode/barcode.h" +#include "BC_ReedSolomonGF256Poly.h" +#include "BC_ReedSolomonGF256.h" +CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::QRCodeFild = NULL; +CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::DataMatrixField = NULL; +void CBC_ReedSolomonGF256::Initialize() { + QRCodeFild = new CBC_ReedSolomonGF256(0x011D); + QRCodeFild->Init(); + DataMatrixField = new CBC_ReedSolomonGF256(0x012D); + DataMatrixField->Init(); +} +void CBC_ReedSolomonGF256::Finalize() { + if (QRCodeFild) { + delete QRCodeFild; + } + QRCodeFild = NULL; + if (DataMatrixField) { + delete DataMatrixField; + } + DataMatrixField = NULL; +} +CBC_ReedSolomonGF256::CBC_ReedSolomonGF256(int32_t primitive) { + int32_t x = 1; + for (int32_t j = 0; j < 256; j++) { + m_expTable[j] = x; + x <<= 1; + if (x >= 0x100) { + x ^= primitive; + } + } + for (int32_t i = 0; i < 255; i++) { + m_logTable[m_expTable[i]] = i; + } + m_logTable[0] = 0; +} +void CBC_ReedSolomonGF256::Init() { + m_zero = new CBC_ReedSolomonGF256Poly(this, 0); + m_one = new CBC_ReedSolomonGF256Poly(this, 1); +} +CBC_ReedSolomonGF256::~CBC_ReedSolomonGF256() { + if (m_zero != NULL) { + delete m_zero; + m_zero = NULL; + } + if (m_one != NULL) { + delete m_one; + m_one = NULL; + } +} +CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetZero() { + return m_zero; +} +CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetOne() { + return m_one; +} +CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::BuildMonomial( + int32_t degree, + int32_t coefficient, + int32_t& e) { + if (degree < 0) { + e = BCExceptionDegreeIsNegative; + BC_EXCEPTION_CHECK_ReturnValue(e, NULL); + } + if (coefficient == 0) { + CBC_ReedSolomonGF256Poly* temp = m_zero->Clone(e); + BC_EXCEPTION_CHECK_ReturnValue(e, NULL); + return temp; + } + CFX_Int32Array coefficients; + coefficients.SetSize(degree + 1); + coefficients[0] = coefficient; + CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly(); + temp->Init(this, &coefficients, e); + BC_EXCEPTION_CHECK_ReturnValue(e, NULL); + return temp; +} +int32_t CBC_ReedSolomonGF256::AddOrSubtract(int32_t a, int32_t b) { + return a ^ b; +} +int32_t CBC_ReedSolomonGF256::Exp(int32_t a) { + return m_expTable[a]; +} +int32_t CBC_ReedSolomonGF256::Log(int32_t a, int32_t& e) { + if (a == 0) { + e = BCExceptionAIsZero; + BC_EXCEPTION_CHECK_ReturnValue(e, 0); + } + return m_logTable[a]; +} +int32_t CBC_ReedSolomonGF256::Inverse(int32_t a, int32_t& e) { + if (a == 0) { + e = BCExceptionAIsZero; + BC_EXCEPTION_CHECK_ReturnValue(e, 0); + } + return m_expTable[255 - m_logTable[a]]; +} +int32_t CBC_ReedSolomonGF256::Multiply(int32_t a, int32_t b) { + if (a == 0 || b == 0) { + return 0; + } + if (a == 1) { + return b; + } + if (b == 1) { + return a; + } + return m_expTable[(m_logTable[a] + m_logTable[b]) % 255]; +} |