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#include "indexer/altitude_loader.hpp"
#include "indexer/data_source.hpp"
#include "coding/reader.hpp"
#include "coding/succinct_mapper.hpp"
#include "base/logging.hpp"
#include "base/stl_helpers.hpp"
#include "base/thread.hpp"
#include "defines.hpp"
#include "std/algorithm.hpp"
#include "3party/succinct/mapper.hpp"
namespace
{
template <class TCont>
void LoadAndMap(size_t dataSize, ReaderSource<FilesContainerR::TReader> & src, TCont & cont,
unique_ptr<CopiedMemoryRegion> & region)
{
vector<uint8_t> data(dataSize);
src.Read(data.data(), data.size());
region = make_unique<CopiedMemoryRegion>(move(data));
coding::MapVisitor visitor(region->ImmutableData());
cont.map(visitor);
}
} // namespace
namespace feature
{
AltitudeLoader::AltitudeLoader(DataSource const & dataSource, MwmSet::MwmId const & mwmId)
: m_handle(dataSource.GetMwmHandleById(mwmId))
{
if (!m_handle.IsAlive())
return;
auto const & mwmValue = *m_handle.GetValue<MwmValue>();
m_countryFileName = mwmValue.GetCountryFileName();
if (mwmValue.GetHeader().GetFormat() < version::Format::v8)
return;
if (!mwmValue.m_cont.IsExist(ALTITUDES_FILE_TAG))
return;
try
{
m_reader = make_unique<FilesContainerR::TReader>(mwmValue.m_cont.GetReader(ALTITUDES_FILE_TAG));
ReaderSource<FilesContainerR::TReader> src(*m_reader);
m_header.Deserialize(src);
LoadAndMap(m_header.GetAltitudeAvailabilitySize(), src, m_altitudeAvailability,
m_altitudeAvailabilityRegion);
LoadAndMap(m_header.GetFeatureTableSize(), src, m_featureTable, m_featureTableRegion);
}
catch (Reader::OpenException const & e)
{
m_header.Reset();
LOG(LERROR, ("File", m_countryFileName, "Error while reading", ALTITUDES_FILE_TAG, "section.", e.Msg()));
}
}
bool AltitudeLoader::HasAltitudes() const
{
return m_reader != nullptr && m_header.m_minAltitude != kInvalidAltitude;
}
TAltitudes const & AltitudeLoader::GetAltitudes(uint32_t featureId, size_t pointCount)
{
if (!HasAltitudes())
{
// The version of mwm is less than version::Format::v8 or there's no altitude section in mwm.
return m_cache.insert(make_pair(featureId, TAltitudes(pointCount, kDefaultAltitudeMeters))).first->second;
}
auto const it = m_cache.find(featureId);
if (it != m_cache.end())
return it->second;
if (!m_altitudeAvailability[featureId])
{
LOG(LDEBUG, ("Feature Id", featureId, "of", m_countryFileName,
"does not contain any altitude information."));
return m_cache.insert(make_pair(featureId, TAltitudes(pointCount, m_header.m_minAltitude))).first->second;
}
uint64_t const r = m_altitudeAvailability.rank(featureId);
CHECK_LESS(r, m_altitudeAvailability.size(), ("Feature Id", featureId, "of", m_countryFileName));
uint64_t const offset = m_featureTable.select(r);
CHECK_LESS_OR_EQUAL(offset, m_featureTable.size(), ("Feature Id", featureId, "of", m_countryFileName));
uint64_t const altitudeInfoOffsetInSection = m_header.m_altitudesOffset + offset;
CHECK_LESS(altitudeInfoOffsetInSection, m_reader->Size(), ("Feature Id", featureId, "of", m_countryFileName));
try
{
Altitudes altitudes;
ReaderSource<FilesContainerR::TReader> src(*m_reader);
src.Skip(altitudeInfoOffsetInSection);
bool const isDeserialized = altitudes.Deserialize(m_header.m_minAltitude, pointCount,
m_countryFileName, featureId, src);
bool const allValid = isDeserialized
&& none_of(altitudes.m_altitudes.begin(), altitudes.m_altitudes.end(),
[](TAltitude a) { return a == kInvalidAltitude; });
if (!allValid)
{
LOG(LERROR, ("Only a part point of a feature has a valid altitdue. Altitudes: ", altitudes.m_altitudes,
". Feature Id", featureId, "of", m_countryFileName));
return m_cache.insert(make_pair(featureId, TAltitudes(pointCount, m_header.m_minAltitude))).first->second;
}
return m_cache.insert(make_pair(featureId, move(altitudes.m_altitudes))).first->second;
}
catch (Reader::OpenException const & e)
{
LOG(LERROR, ("Feature Id", featureId, "of", m_countryFileName, ". Error while getting altitude data:", e.Msg()));
return m_cache.insert(make_pair(featureId, TAltitudes(pointCount, m_header.m_minAltitude))).first->second;
}
}
} // namespace feature
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