DecodeStep::DecodeStep(const DecodeFeature *decodeFeature,
const DecodeStep* prev,
const std::vector<FeatureFunction*> &features)
: m_decodeFeature(decodeFeature)
{
FactorMask prevOutputFactors;
if (prev) prevOutputFactors = prev->m_outputFactors;
m_outputFactors = prevOutputFactors;
FactorMask conflictMask = (m_outputFactors & decodeFeature->GetOutputFactorMask());
m_outputFactors |= decodeFeature->GetOutputFactorMask();
FactorMask newOutputFactorMask = m_outputFactors ^ prevOutputFactors; //xor
m_newOutputFactors.resize(newOutputFactorMask.count());
m_conflictFactors.resize(conflictMask.count());
size_t j=0, k=0;
for (size_t i = 0; i < MAX_NUM_FACTORS; i++) {
if (newOutputFactorMask[i]) m_newOutputFactors[j++] = i;
if (conflictMask[i]) m_conflictFactors[k++] = i;
}
VERBOSE(2,"DecodeStep():\n\toutputFactors=" << m_outputFactors
<< "\n\tconflictFactors=" << conflictMask
<< "\n\tnewOutputFactors=" << newOutputFactorMask << std::endl);
// find out which feature function can be applied in this decode step
for (size_t i = 0; i < features.size(); ++i) {
FeatureFunction *feature = features[i];
if (feature->IsUseable(m_outputFactors)) {
m_featuresToApply.push_back(feature);
} else {
m_featuresRemaining.push_back(feature);
}
}
}
DecodeStep::DecodeStep(Dictionary *ptr, const DecodeStep* prev)
:m_ptr(ptr)
{
FactorMask prevOutputFactors;
if (prev) prevOutputFactors = prev->m_outputFactors;
m_outputFactors = prevOutputFactors;
FactorMask conflictMask = (m_outputFactors & ptr->GetOutputFactorMask());
m_outputFactors |= ptr->GetOutputFactorMask();
FactorMask newOutputFactorMask = m_outputFactors ^ prevOutputFactors; //xor
m_newOutputFactors.resize(newOutputFactorMask.count());
m_conflictFactors.resize(conflictMask.count());
size_t j=0, k=0;
for (size_t i = 0; i < MAX_NUM_FACTORS; i++) {
if (newOutputFactorMask[i]) m_newOutputFactors[j++] = i;
if (conflictMask[i]) m_conflictFactors[k++] = i;
}
VERBOSE(2,"DecodeStep():\n\toutputFactors=" << m_outputFactors
<< "\n\tconflictFactors=" << conflictMask
<< "\n\tnewOutputFactors=" << newOutputFactorMask << std::endl);
}
