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#include "indexer/data_header.hpp"
#include "indexer/scales.hpp"
#include "platform/platform.hpp"
#include "coding/file_container.hpp"
#include "coding/file_writer.hpp"
#include "coding/point_to_integer.hpp"
#include "coding/varint.hpp"
#include "coding/write_to_sink.hpp"
#include "defines.hpp"
namespace feature
{
DataHeader::DataHeader(string const & fileName)
: DataHeader((FilesContainerR(GetPlatform().GetReader(fileName))))
{
}
DataHeader::DataHeader(FilesContainerR const & cont)
{
Load(cont);
}
serial::CodingParams DataHeader::GetCodingParams(int scaleIndex) const
{
return serial::CodingParams(m_codingParams.GetCoordBits() -
(m_scales.back() - m_scales[scaleIndex]) / 2,
m_codingParams.GetBasePointUint64());
}
m2::RectD const DataHeader::GetBounds() const
{
return Int64ToRect(m_bounds, m_codingParams.GetCoordBits());
}
void DataHeader::SetBounds(m2::RectD const & r)
{
m_bounds = RectToInt64(r, m_codingParams.GetCoordBits());
}
pair<int, int> DataHeader::GetScaleRange() const
{
using namespace scales;
int const low = 0;
int const high = GetUpperScale();
int const worldH = GetUpperWorldScale();
MapType const type = GetType();
switch (type)
{
case world: return make_pair(low, worldH);
case worldcoasts: return make_pair(low, high);
default:
ASSERT_EQUAL(type, country, ());
return make_pair(worldH + 1, high);
// Uncomment this to test countries drawing in all scales.
//return make_pair(1, high);
}
}
namespace
{
template <class TSink, class TCont>
void SaveBytes(TSink & sink, TCont const & cont)
{
static_assert(sizeof(typename TCont::value_type) == 1, "");
uint32_t const count = static_cast<uint32_t>(cont.size());
WriteVarUint(sink, count);
if (count > 0)
sink.Write(&cont[0], count);
}
template <class TSource, class TCont>
void LoadBytes(TSource & src, TCont & cont)
{
static_assert(sizeof(typename TCont::value_type) == 1, "");
ASSERT ( cont.empty(), () );
uint32_t const count = ReadVarUint<uint32_t>(src);
if (count > 0)
{
cont.resize(count);
src.Read(&cont[0], count);
}
}
}
void DataHeader::Save(FileWriter & w) const
{
m_codingParams.Save(w);
WriteVarInt(w, m_bounds.first);
WriteVarInt(w, m_bounds.second);
SaveBytes(w, m_scales);
SaveBytes(w, m_langs);
WriteVarInt(w, static_cast<int32_t>(m_type));
}
void DataHeader::Load(FilesContainerR const & cont)
{
ModelReaderPtr headerReader = cont.GetReader(HEADER_FILE_TAG);
version::MwmVersion version;
if (version::ReadVersion(cont, version))
Load(headerReader, version.GetFormat());
else
LoadV1(headerReader);
}
void DataHeader::Load(ModelReaderPtr const & r, version::Format format)
{
ReaderSource<ModelReaderPtr> src(r);
m_codingParams.Load(src);
m_bounds.first = ReadVarInt<int64_t>(src);
m_bounds.second = ReadVarInt<int64_t>(src);
LoadBytes(src, m_scales);
LoadBytes(src, m_langs);
m_type = static_cast<MapType>(ReadVarInt<int32_t>(src));
m_format = format;
if (!IsMWMSuitable())
{
// Actually, old versions of the app should read mwm header correct!
// This condition is also checked in adding mwm to the model.
return;
}
// Place all new serializable staff here.
}
void DataHeader::LoadV1(ModelReaderPtr const & r)
{
ReaderSource<ModelReaderPtr> src(r);
int64_t const base = ReadPrimitiveFromSource<int64_t>(src);
m_codingParams = serial::CodingParams(POINT_COORD_BITS, base);
m_bounds.first = ReadVarInt<int64_t>(src) + base;
m_bounds.second = ReadVarInt<int64_t>(src) + base;
uint32_t const count = 4;
m_scales.resize(count);
src.Read(m_scales.data(), count);
m_type = country;
m_format = version::Format::v1;
}
}
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