/
PointBuffer.hpp
621 lines (560 loc) · 18.5 KB
/
PointBuffer.hpp
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/******************************************************************************
* Copyright (c) 2011, Michael P. Gerlek (mpg@flaxen.com)
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Hobu, Inc. or Flaxen Geo Consulting nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
****************************************************************************/
#pragma once
#include <pdal/util/Bounds.hpp>
#include <pdal/pdal_internal.hpp>
#include <pdal/PointContext.hpp>
#include <memory>
#include <queue>
#include <set>
#include <vector>
namespace pdal
{
namespace plang
{
class BufferedInvocation;
}
class PointBuffer;
class PointBufferIter;
typedef std::shared_ptr<PointBuffer> PointBufferPtr;
typedef std::set<PointBufferPtr> PointBufferSet;
class PDAL_DLL PointBuffer
{
friend class plang::BufferedInvocation;
friend class PointRef;
public:
PointBuffer(PointContextRef context) : m_context(context), m_size(0)
{}
PointBuffer(std::istream& strm, PointContextRef ctx, PointId start,
PointId end) : m_context(ctx), m_size(0)
{
size_t pointSize = ctx.pointSize();
std::vector<char> bytes;
bytes.resize(pointSize);
char* start_pos = bytes.data();
for (PointId i = start; i < end; ++i)
{
char* pos = start_pos;
strm.read(pos, pointSize);
if (strm.eof() )
break; // done
for (const auto& dim : ctx.m_dims->m_used)
{
setFieldInternal(dim, i, pos);
pos += m_context.dimSize(dim);
}
}
}
PointBufferIter begin();
PointBufferIter end();
point_count_t size() const
{ return m_size; }
bool empty() const
{ return m_size == 0; }
inline void appendPoint(const PointBuffer& buffer, PointId id);
void append(const PointBuffer& buf)
{
// We use size() instead of the index end because temp points
// might have been placed at the end of the buffer.
auto thisEnd = m_index.begin() + size();
auto bufEnd = buf.m_index.begin() + buf.size();
m_index.insert(thisEnd, buf.m_index.begin(), bufEnd);
m_size += buf.size();
clearTemps();
}
/// Return a new point buffer with the same point context as this
/// point buffer.
PointBufferPtr makeNew() const
{ return PointBufferPtr(new PointBuffer(m_context)); }
template<class T>
T getFieldAs(Dimension::Id::Enum dim, PointId pointIndex) const;
inline void getField(char *pos, Dimension::Id::Enum d,
Dimension::Type::Enum type, PointId id) const;
template<typename T>
void setField(Dimension::Id::Enum dim, PointId idx, T val);
inline void setField(Dimension::Id::Enum dim, Dimension::Type::Enum type,
PointId idx, const void *val);
template <typename T>
bool compare(Dimension::Id::Enum dim, PointId id1, PointId id2)
{
return (getFieldInternal<T>(dim, id1) < getFieldInternal<T>(dim, id2));
}
bool compare(Dimension::Id::Enum dim, PointId id1, PointId id2)
{
Dimension::Detail *dd = m_context.dimDetail(dim);
switch (dd->type())
{
case Dimension::Type::Float:
return compare<float>(dim, id1, id2);
break;
case Dimension::Type::Double:
return compare<double>(dim, id1, id2);
break;
case Dimension::Type::Signed8:
return compare<int8_t>(dim, id1, id2);
break;
case Dimension::Type::Signed16:
return compare<int16_t>(dim, id1, id2);
break;
case Dimension::Type::Signed32:
return compare<int32_t>(dim, id1, id2);
break;
case Dimension::Type::Signed64:
return compare<int64_t>(dim, id1, id2);
break;
case Dimension::Type::Unsigned8:
return compare<uint8_t>(dim, id1, id2);
break;
case Dimension::Type::Unsigned16:
return compare<uint16_t>(dim, id1, id2);
break;
case Dimension::Type::Unsigned32:
return compare<uint32_t>(dim, id1, id2);
break;
case Dimension::Type::Unsigned64:
return compare<uint64_t>(dim, id1, id2);
break;
case Dimension::Type::None:
default:
return false;
break;
}
}
void getRawField(Dimension::Id::Enum dim, PointId idx, void *buf) const
{
getFieldInternal(dim, idx, buf);
}
/*! @return a cumulated bounds of all points in the PointBuffer.
\verbatim embed:rst
.. note::
This method requires that an `X`, `Y`, and `Z` dimension be
available, and that it can be casted into a *double* data
type using the :cpp:func:`pdal::Dimension::applyScaling`
method. Otherwise, an exception will be thrown.
\endverbatim
*/
BOX3D calculateBounds(bool bis3d=true) const;
static BOX3D calculateBounds(const PointBufferSet&, bool bis3d=true);
void dump(std::ostream& ostr) const;
bool hasDim(Dimension::Id::Enum id) const
{ return m_context.hasDim(id); }
std::string dimName(Dimension::Id::Enum id) const
{ return m_context.dimName(id); }
Dimension::IdList dims() const
{ return m_context.dims(); }
std::size_t pointSize() const
{ return m_context.pointSize(); }
std::size_t dimSize(Dimension::Id::Enum id) const
{ return m_context.dimSize(id); }
DimTypeList dimTypes() const
{ return m_context.dimTypes(); }
/// Fill a buffer with point data specified by the dimension list.
/// \param[in] dims List of dimensions/types to retrieve.
/// \param[in] idx Index of point to get.
/// \param[in] buf Pointer to buffer to fill.
void getPackedPoint(const DimTypeList& dims, PointId idx, char *buf) const
{
for (auto di = dims.begin(); di != dims.end(); ++di)
{
getField(buf, di->m_id, di->m_type, idx);
buf += Dimension::size(di->m_type);
}
}
/// Load the point buffer from memory whose arrangement is specified
/// by the dimension list.
/// \param[in] dims Dimension/types of data in packed order
/// \param[in] idx Index of point to write.
/// \param[in] buf Packed data buffer.
void setPackedPoint(const DimTypeList& dims, PointId idx, const char *buf)
{
for (auto di = dims.begin(); di != dims.end(); ++di)
{
setField(di->m_id, di->m_type, idx, (const void *)buf);
buf += Dimension::size(di->m_type);
}
}
std::ostream& getBytes(std::ostream& strm, PointId start, PointId end) const
{
char buf[sizeof(double)];
for (PointId i = start; i < end; ++i)
{
for (const auto& dim : m_context.m_dims->m_used)
{
getFieldInternal(dim, i, buf);
strm.write(buf, m_context.dimSize(dim));
}
}
return strm;
}
protected:
PointContextRef m_context;
std::vector<PointId> m_index;
// The index might be larger than the size to support temporary point
// references.
size_t m_size;
std::queue<PointId> m_temps;
private:
template<typename T_IN, typename T_OUT>
void convertAndSet(Dimension::Id::Enum dim, PointId idx, T_IN in);
inline void setFieldInternal(Dimension::Id::Enum dim, PointId pointIndex,
const void *value);
template<class T>
T getFieldInternal(Dimension::Id::Enum dim, PointId pointIndex) const;
inline void getFieldInternal(Dimension::Id::Enum dim, PointId pointIndex,
void *value) const;
inline PointId getTemp(PointId id);
void freeTemp(PointId id)
{ m_temps.push(id); }
// The standard idiom is swapping with a stack-created empty queue, but
// that invokes the ctor and probably allocates. We've probably only got
// one or two things in our queue, so just pop until we're empty.
void clearTemps()
{
while (!m_temps.empty())
m_temps.pop();
}
};
template <class T>
T PointBuffer::getFieldInternal(Dimension::Id::Enum dim, PointId id) const
{
T t;
getFieldInternal(dim, id, &t);
return t;
}
inline void PointBuffer::getField(char *pos, Dimension::Id::Enum d,
Dimension::Type::Enum type, PointId id) const
{
union
{
float f;
double d;
int8_t s8;
int16_t s16;
int32_t s32;
int64_t s64;
uint8_t u8;
uint16_t u16;
uint32_t u32;
uint64_t u64;
} e; // e - for Everything.
switch (type)
{
case Dimension::Type::Float:
e.f = getFieldAs<float>(d, id);
break;
case Dimension::Type::Double:
e.d = getFieldAs<double>(d, id);
break;
case Dimension::Type::Signed8:
e.s8 = getFieldAs<int8_t>(d, id);
break;
case Dimension::Type::Signed16:
e.s16 = getFieldAs<int16_t>(d, id);
break;
case Dimension::Type::Signed32:
e.s32 = getFieldAs<int32_t>(d, id);
break;
case Dimension::Type::Signed64:
e.s64 = getFieldAs<int64_t>(d, id);
break;
case Dimension::Type::Unsigned8:
e.u8 = getFieldAs<uint8_t>(d, id);
break;
case Dimension::Type::Unsigned16:
e.u16 = getFieldAs<uint16_t>(d, id);
break;
case Dimension::Type::Unsigned32:
e.u32 = getFieldAs<uint32_t>(d, id);
break;
case Dimension::Type::Unsigned64:
e.u64 = getFieldAs<uint64_t>(d, id);
break;
case Dimension::Type::None:
break;
}
memcpy(pos, &e, Dimension::size(type));
}
inline void PointBuffer::setField(Dimension::Id::Enum dim,
Dimension::Type::Enum type, PointId idx, const void *val)
{
union
{
float f;
double d;
int8_t s8;
int16_t s16;
int32_t s32;
int64_t s64;
uint8_t u8;
uint16_t u16;
uint32_t u32;
uint64_t u64;
} e; // e - for Everything.
memcpy(&e, val, Dimension::size(type));
switch (type)
{
case Dimension::Type::Float:
setField(dim, idx, e.f);
break;
case Dimension::Type::Double:
setField(dim, idx, e.d);
break;
case Dimension::Type::Signed8:
setField(dim, idx, e.s8);
break;
case Dimension::Type::Signed16:
setField(dim, idx, e.s16);
break;
case Dimension::Type::Signed32:
setField(dim, idx, e.s32);
break;
case Dimension::Type::Signed64:
setField(dim, idx, e.s64);
break;
case Dimension::Type::Unsigned8:
setField(dim, idx, e.u8);
break;
case Dimension::Type::Unsigned16:
setField(dim, idx, e.u16);
break;
case Dimension::Type::Unsigned32:
setField(dim, idx, e.u32);
break;
case Dimension::Type::Unsigned64:
setField(dim, idx, e.u64);
break;
case Dimension::Type::None:
break;
}
}
template <class T>
inline T PointBuffer::getFieldAs(Dimension::Id::Enum dim,
PointId pointIndex) const
{
T retval;
Dimension::Detail *dd = m_context.dimDetail(dim);
double val;
switch (dd->type())
{
case Dimension::Type::Float:
val = getFieldInternal<float>(dim, pointIndex);
break;
case Dimension::Type::Double:
val = getFieldInternal<double>(dim, pointIndex);
break;
case Dimension::Type::Signed8:
val = getFieldInternal<int8_t>(dim, pointIndex);
break;
case Dimension::Type::Signed16:
val = getFieldInternal<int16_t>(dim, pointIndex);
break;
case Dimension::Type::Signed32:
val = getFieldInternal<int32_t>(dim, pointIndex);
break;
case Dimension::Type::Signed64:
val = static_cast<double>(getFieldInternal<int64_t>(dim, pointIndex));
break;
case Dimension::Type::Unsigned8:
val = getFieldInternal<uint8_t>(dim, pointIndex);
break;
case Dimension::Type::Unsigned16:
val = getFieldInternal<uint16_t>(dim, pointIndex);
break;
case Dimension::Type::Unsigned32:
val = getFieldInternal<uint32_t>(dim, pointIndex);
break;
case Dimension::Type::Unsigned64:
val = static_cast<double>(getFieldInternal<uint64_t>(dim, pointIndex));
break;
case Dimension::Type::None:
default:
val = 0;
break;
}
#ifdef PDAL_COMPILER_MSVC
// warning C4127: conditional expression is constant
#pragma warning(push)
#pragma warning(disable:4127)
#endif
try
{
if (std::is_integral<T>::value == true )
retval = boost::numeric_cast<T>(lround(val));
else
retval = boost::numeric_cast<T>(val);
}
catch (boost::numeric::bad_numeric_cast& )
{
std::ostringstream oss;
oss << "Unable to fetch data and convert as requested: ";
oss << Dimension::name(dim) << ":" <<
Dimension::interpretationName(dd->type()) <<
"(" << (double)val << ") -> " << Utils::typeidName<T>();
throw pdal_error(oss.str());
}
return retval;
#ifdef PDAL_COMPILER_MSVC
// warning C4127: conditional expression is constant
#pragma warning(pop)
#endif
}
template<typename T_IN, typename T_OUT>
void PointBuffer::convertAndSet(Dimension::Id::Enum dim, PointId idx, T_IN in)
{
T_OUT out;
#ifdef PDAL_COMPILER_MSVC
// warning C4127: conditional expression is constant
#pragma warning(push)
#pragma warning(disable:4127)
#endif
if (std::is_integral<T_OUT>::value == true)
out = boost::numeric_cast<T_OUT>(lround(in));
else
out = boost::numeric_cast<T_OUT>(in);
#ifdef PDAL_COMPILER_MSVC
// warning C4127: conditional expression is constant
#pragma warning(pop)
#endif
setFieldInternal(dim, idx, (void *)&out);
}
template<typename T>
void PointBuffer::setField(Dimension::Id::Enum dim, PointId idx, T val)
{
Dimension::Detail *dd = m_context.dimDetail(dim);
try {
switch (dd->type())
{
case Dimension::Type::Float:
convertAndSet<T, float>(dim, idx, val);
break;
case Dimension::Type::Double:
convertAndSet<T, double>(dim, idx, val);
break;
case Dimension::Type::Signed8:
setFieldInternal(dim, idx, &val);
break;
case Dimension::Type::Signed16:
convertAndSet<T, int16_t>(dim, idx, val);
break;
case Dimension::Type::Signed32:
convertAndSet<T, int32_t>(dim, idx, val);
break;
case Dimension::Type::Signed64:
convertAndSet<T, int64_t>(dim, idx, val);
break;
case Dimension::Type::Unsigned8:
setFieldInternal(dim, idx, &val);
break;
case Dimension::Type::Unsigned16:
convertAndSet<T, uint16_t>(dim, idx, val);
break;
case Dimension::Type::Unsigned32:
convertAndSet<T, uint32_t>(dim, idx, val);
break;
case Dimension::Type::Unsigned64:
convertAndSet<T, uint64_t>(dim, idx, val);
break;
case Dimension::Type::None:
val = 0;
break;
}
}
catch (boost::numeric::bad_numeric_cast& )
{
std::ostringstream oss;
oss << "Unable to set data and convert as requested: ";
oss << Dimension::name(dim) << ":" << Utils::typeidName<T>() <<
"(" << (double)val << ") -> " <<
Dimension::interpretationName(dd->type());
throw pdal_error(oss.str());
}
}
inline void PointBuffer::getFieldInternal(Dimension::Id::Enum dim,
PointId id, void *buf) const
{
m_context.rawPtBuf()->getField(m_context.dimDetail(dim), m_index[id], buf);
}
inline void PointBuffer::setFieldInternal(Dimension::Id::Enum dim,
PointId id, const void *value)
{
PointId rawId = 0;
if (id == size())
{
rawId = m_context.rawPtBuf()->addPoint();
m_index.resize(id + 1);
m_index[id] = rawId;
m_size++;
clearTemps();
}
else if (id > size())
{
std::cerr << "Point index must increment.\n";
//error - throw?
return;
}
else
{
rawId = m_index[id];
}
m_context.rawPtBuf()->setField(m_context.dimDetail(dim), rawId, value);
}
inline void PointBuffer::appendPoint(const PointBuffer& buffer, PointId id)
{
// Invalid 'id' is a programmer error.
PointId rawId = buffer.m_index[id];
point_count_t newid = size();
m_index.resize(newid + 1);
m_index[newid] = rawId;
m_size++;
clearTemps();
}
// Make a temporary copy of a point by adding an entry to the index.
inline PointId PointBuffer::getTemp(PointId id)
{
PointId newid;
if (m_temps.size())
{
newid = m_temps.front();
m_temps.pop();
}
else
{
newid = m_index.size();
m_index.resize(newid + 1);
}
m_index[newid] = m_index[id];
return newid;
}
PDAL_DLL std::ostream& operator<<(std::ostream& ostr, const PointBuffer&);
} // namespace pdal