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path: root/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp
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Diffstat (limited to 'xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp')
-rw-r--r--xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp134
1 files changed, 68 insertions, 66 deletions
diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp
index 1ece2add2c..286906d152 100644
--- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp
+++ b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp
@@ -24,77 +24,79 @@
#include "BC_ReedSolomonGF256.h"
#include "BC_ReedSolomonGF256Poly.h"
#include "BC_ReedSolomon.h"
-CBC_ReedSolomonEncoder::CBC_ReedSolomonEncoder(CBC_ReedSolomonGF256* field)
-{
- m_field = field;
+CBC_ReedSolomonEncoder::CBC_ReedSolomonEncoder(CBC_ReedSolomonGF256* field) {
+ m_field = field;
}
-void CBC_ReedSolomonEncoder::Init()
-{
- m_cachedGenerators.Add(FX_NEW CBC_ReedSolomonGF256Poly(m_field, 1));
+void CBC_ReedSolomonEncoder::Init() {
+ m_cachedGenerators.Add(FX_NEW CBC_ReedSolomonGF256Poly(m_field, 1));
}
-CBC_ReedSolomonGF256Poly* CBC_ReedSolomonEncoder::BuildGenerator(int32_t degree, int32_t &e)
-{
- if(degree >= m_cachedGenerators.GetSize()) {
- CBC_ReedSolomonGF256Poly* lastGenerator = (CBC_ReedSolomonGF256Poly*)(m_cachedGenerators[m_cachedGenerators.GetSize() - 1]);
- for(int32_t d = m_cachedGenerators.GetSize(); d <= degree; d++) {
- CFX_Int32Array temp;
- temp.Add(1);
- temp.Add(m_field->Exp(d - 1));
- CBC_ReedSolomonGF256Poly temp_poly;
- temp_poly.Init(m_field, &temp, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- CBC_ReedSolomonGF256Poly* nextGenerator = lastGenerator->Multiply(&temp_poly, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- m_cachedGenerators.Add(nextGenerator);
- lastGenerator = nextGenerator;
- }
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonEncoder::BuildGenerator(int32_t degree,
+ int32_t& e) {
+ if (degree >= m_cachedGenerators.GetSize()) {
+ CBC_ReedSolomonGF256Poly* lastGenerator =
+ (CBC_ReedSolomonGF256Poly*)(m_cachedGenerators
+ [m_cachedGenerators.GetSize() - 1]);
+ for (int32_t d = m_cachedGenerators.GetSize(); d <= degree; d++) {
+ CFX_Int32Array temp;
+ temp.Add(1);
+ temp.Add(m_field->Exp(d - 1));
+ CBC_ReedSolomonGF256Poly temp_poly;
+ temp_poly.Init(m_field, &temp, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ CBC_ReedSolomonGF256Poly* nextGenerator =
+ lastGenerator->Multiply(&temp_poly, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ m_cachedGenerators.Add(nextGenerator);
+ lastGenerator = nextGenerator;
}
- return (CBC_ReedSolomonGF256Poly*)(m_cachedGenerators[degree]);
+ }
+ return (CBC_ReedSolomonGF256Poly*)(m_cachedGenerators[degree]);
}
-void CBC_ReedSolomonEncoder::Encode(CFX_Int32Array *toEncode, int32_t ecBytes, int32_t &e)
-{
- if(ecBytes == 0) {
- e = BCExceptionNoCorrectionBytes;
- BC_EXCEPTION_CHECK_ReturnVoid(e);
- }
- int32_t dataBytes = toEncode->GetSize() - ecBytes;
- if(dataBytes <= 0) {
- e = BCExceptionNoDataBytesProvided;
- BC_EXCEPTION_CHECK_ReturnVoid(e);
- }
- CBC_ReedSolomonGF256Poly* generator = BuildGenerator(ecBytes, e);
- BC_EXCEPTION_CHECK_ReturnVoid(e);
- CFX_Int32Array infoCoefficients;
- infoCoefficients.SetSize(dataBytes);
- for(int32_t x = 0; x < dataBytes; x++) {
- infoCoefficients[x] = toEncode->operator [](x);
- }
- CBC_ReedSolomonGF256Poly info;
- info.Init(m_field, &infoCoefficients, e);
- BC_EXCEPTION_CHECK_ReturnVoid(e);
- CBC_ReedSolomonGF256Poly* rsg = info.MultiplyByMonomial(ecBytes, 1, e);
+void CBC_ReedSolomonEncoder::Encode(CFX_Int32Array* toEncode,
+ int32_t ecBytes,
+ int32_t& e) {
+ if (ecBytes == 0) {
+ e = BCExceptionNoCorrectionBytes;
BC_EXCEPTION_CHECK_ReturnVoid(e);
- CBC_AutoPtr<CBC_ReedSolomonGF256Poly> infoTemp(rsg);
- CFX_PtrArray *pa = infoTemp->Divide(generator, e);
+ }
+ int32_t dataBytes = toEncode->GetSize() - ecBytes;
+ if (dataBytes <= 0) {
+ e = BCExceptionNoDataBytesProvided;
BC_EXCEPTION_CHECK_ReturnVoid(e);
- CBC_AutoPtr<CFX_PtrArray > temp(pa);
- CBC_ReedSolomonGF256Poly* remainder = (CBC_ReedSolomonGF256Poly*)(temp->operator [](1));
- CFX_Int32Array* coefficients = remainder->GetCoefficients();
- int32_t numZeroCoefficients = ecBytes - coefficients->GetSize();
- for(int32_t i = 0; i < numZeroCoefficients; i++) {
- (*toEncode)[dataBytes + i] = 0;
- }
- for(int32_t y = 0; y < coefficients->GetSize(); y++) {
- (*toEncode)[dataBytes + numZeroCoefficients + y] =
- coefficients->operator [](y);
- }
- for (int32_t k = 0; k < temp->GetSize(); k++) {
- delete (CBC_ReedSolomonGF256Poly*)(*temp)[k];
- }
+ }
+ CBC_ReedSolomonGF256Poly* generator = BuildGenerator(ecBytes, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ CFX_Int32Array infoCoefficients;
+ infoCoefficients.SetSize(dataBytes);
+ for (int32_t x = 0; x < dataBytes; x++) {
+ infoCoefficients[x] = toEncode->operator[](x);
+ }
+ CBC_ReedSolomonGF256Poly info;
+ info.Init(m_field, &infoCoefficients, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ CBC_ReedSolomonGF256Poly* rsg = info.MultiplyByMonomial(ecBytes, 1, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ CBC_AutoPtr<CBC_ReedSolomonGF256Poly> infoTemp(rsg);
+ CFX_PtrArray* pa = infoTemp->Divide(generator, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ CBC_AutoPtr<CFX_PtrArray> temp(pa);
+ CBC_ReedSolomonGF256Poly* remainder =
+ (CBC_ReedSolomonGF256Poly*)(temp->operator[](1));
+ CFX_Int32Array* coefficients = remainder->GetCoefficients();
+ int32_t numZeroCoefficients = ecBytes - coefficients->GetSize();
+ for (int32_t i = 0; i < numZeroCoefficients; i++) {
+ (*toEncode)[dataBytes + i] = 0;
+ }
+ for (int32_t y = 0; y < coefficients->GetSize(); y++) {
+ (*toEncode)[dataBytes + numZeroCoefficients + y] =
+ coefficients->operator[](y);
+ }
+ for (int32_t k = 0; k < temp->GetSize(); k++) {
+ delete (CBC_ReedSolomonGF256Poly*)(*temp)[k];
+ }
}
-CBC_ReedSolomonEncoder::~CBC_ReedSolomonEncoder()
-{
- for (int32_t i = 0; i < m_cachedGenerators.GetSize(); i++) {
- delete (CBC_ReedSolomonGF256Poly*)m_cachedGenerators[i];
- }
+CBC_ReedSolomonEncoder::~CBC_ReedSolomonEncoder() {
+ for (int32_t i = 0; i < m_cachedGenerators.GetSize(); i++) {
+ delete (CBC_ReedSolomonGF256Poly*)m_cachedGenerators[i];
+ }
}