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#include "data_header.hpp"
#include "point_to_int64.hpp"
#include "scales.hpp"
#include "../defines.hpp"
#include "../coding/file_reader.hpp"
#include "../coding/file_writer.hpp"
#include "../coding/file_container.hpp"
#include "../coding/write_to_sink.hpp"
#include "../coding/varint.hpp"
namespace feature
{
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 = 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(ModelReaderPtr const & r)
{
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_ver = v2;
}
void DataHeader::LoadVer1(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_ver = v1;
}
}
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