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authorDan Sinclair <dsinclair@chromium.org>2016-03-14 14:14:16 -0400
committerDan Sinclair <dsinclair@chromium.org>2016-03-14 14:14:16 -0400
commit1770c021cf998ff1b33855b1397f6ea8ff9f7cd7 (patch)
tree285e39abd4b5872d8cd632b9e331b0667fdc3eae /xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp
parentf766ad219f66543654520f6a1955836f519e26d1 (diff)
downloadpdfium-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/common/reedsolomon/BC_ReedSolomonGF256.cpp')
-rw-r--r--xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp124
1 files changed, 124 insertions, 0 deletions
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp
new file mode 100644
index 0000000000..5e9fd33ac4
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.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 "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.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() {
+ delete m_zero;
+ delete m_one;
+}
+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];
+}