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SourceDestBufferImpl.cpp
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SourceDestBufferImpl.cpp
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/*
* Original work Copyright 2009 - 2010 Kevin Ackley (kackley@gwi.net)
* Modified work Copyright 2018 - 2020 Andy Maloney <asmaloney@gmail.com>
*
* Permission is hereby granted, free of charge, to any person or organization
* obtaining a copy of the software and accompanying documentation covered by
* this license (the "Software") to use, reproduce, display, distribute,
* execute, and transmit the Software, and to prepare derivative works of the
* Software, and to permit third-parties to whom the Software is furnished to
* do so, all subject to the following:
*
* The copyright notices in the Software and this entire statement, including
* the above license grant, this restriction and the following disclaimer,
* must be included in all copies of the Software, in whole or in part, and
* all derivative works of the Software, unless such copies or derivative
* works are solely in the form of machine-executable object code generated by
* a source language processor.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
* SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
* FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <cmath>
#include "ImageFileImpl.h"
#include "SourceDestBufferImpl.h"
#include "StringFunctions.h"
using namespace e57;
SourceDestBufferImpl::SourceDestBufferImpl( ImageFileImplWeakPtr destImageFile,
const ustring &pathName, const size_t capacity,
bool doConversion, bool doScaling ) :
destImageFile_( destImageFile ), pathName_( pathName ), memoryRepresentation_( Int32 ),
capacity_( capacity ), doConversion_( doConversion ), doScaling_( doScaling )
{
}
template <typename T> void SourceDestBufferImpl::setTypeInfo( T *base, size_t stride )
{
static_assert( std::is_integral<T>::value || std::is_floating_point<T>::value,
"Integral or floating point required." );
base_ = reinterpret_cast<char *>( base );
stride_ = stride;
// this is a little ugly, but it saves us having to pass around the memory
// representation
if ( std::is_same<T, int8_t>::value )
{
memoryRepresentation_ = Int8;
}
else if ( std::is_same<T, uint8_t>::value )
{
memoryRepresentation_ = UInt8;
}
else if ( std::is_same<T, int16_t>::value )
{
memoryRepresentation_ = Int16;
}
else if ( std::is_same<T, uint16_t>::value )
{
memoryRepresentation_ = UInt16;
}
else if ( std::is_same<T, int32_t>::value )
{
memoryRepresentation_ = Int32;
}
else if ( std::is_same<T, uint32_t>::value )
{
memoryRepresentation_ = UInt32;
}
else if ( std::is_same<T, int64_t>::value )
{
memoryRepresentation_ = Int64;
}
else if ( std::is_same<T, bool>::value )
{
memoryRepresentation_ = Bool;
}
else if ( std::is_same<T, float>::value )
{
memoryRepresentation_ = Real32;
}
else if ( std::is_same<T, double>::value )
{
memoryRepresentation_ = Real64;
}
checkState_();
}
template void SourceDestBufferImpl::setTypeInfo<int8_t>( int8_t *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<uint8_t>( uint8_t *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<int16_t>( int16_t *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<uint16_t>( uint16_t *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<int32_t>( int32_t *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<uint32_t>( uint32_t *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<int64_t>( int64_t *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<bool>( bool *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<float>( float *base, size_t stride );
template void SourceDestBufferImpl::setTypeInfo<double>( double *base, size_t stride );
SourceDestBufferImpl::SourceDestBufferImpl( ImageFileImplWeakPtr destImageFile,
const ustring &pathName, std::vector<ustring> *b ) :
destImageFile_( destImageFile ), pathName_( pathName ), memoryRepresentation_( UString ),
ustrings_( b )
{
/// don't checkImageFileOpen, checkState_ will do it
/// Set capacity_ after testing that b is OK
if ( b == nullptr )
{
throw E57_EXCEPTION2( ErrorBadBuffer, "sdbuf.pathName=" + pathName );
}
capacity_ = b->size();
checkState_();
/// Note that capacity_ is set to the size() of the vector<>, not its
/// capacity(). The size() of *ustrings_ will not be changed as strings are
/// stored in it.
}
template <typename T> void SourceDestBufferImpl::_setNextReal( T inValue )
{
static_assert( std::is_same<T, double>::value || std::is_same<T, float>::value,
"_setNextReal() requires float or double type" );
/// don't checkImageFileOpen
/// Verify have room
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Calc start of memory location, index into buffer using stride_ (the
/// distance between elements).
char *p = &base_[nextIndex_ * stride_];
switch ( memoryRepresentation_ )
{
case Int8:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
//??? fault if get special value: NaN, NegInf... (all other ints below
// too)
if ( inValue < INT8_MIN || INT8_MAX < inValue )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( inValue ) );
}
*reinterpret_cast<int8_t *>( p ) = static_cast<int8_t>( inValue );
break;
case UInt8:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
if ( inValue < UINT8_MIN || UINT8_MAX < inValue )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( inValue ) );
}
*reinterpret_cast<uint8_t *>( p ) = static_cast<uint8_t>( inValue );
break;
case Int16:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
if ( inValue < INT16_MIN || INT16_MAX < inValue )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( inValue ) );
}
*reinterpret_cast<int16_t *>( p ) = static_cast<int16_t>( inValue );
break;
case UInt16:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
if ( inValue < UINT16_MIN || UINT16_MAX < inValue )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( inValue ) );
}
*reinterpret_cast<uint16_t *>( p ) = static_cast<uint16_t>( inValue );
break;
case Int32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
if ( inValue < INT32_MIN || ( inValue > static_cast<T>( INT32_MAX ) ) )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( inValue ) );
}
*reinterpret_cast<int32_t *>( p ) = static_cast<int32_t>( inValue );
break;
case UInt32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
if ( inValue < UINT32_MIN || ( inValue > ( static_cast<T>( UINT32_MAX ) ) ) )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( inValue ) );
}
*reinterpret_cast<uint32_t *>( p ) = static_cast<uint32_t>( inValue );
break;
case Int64:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
if ( inValue < INT64_MIN || ( inValue > ( static_cast<T>( INT64_MAX ) ) ) )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( inValue ) );
}
*reinterpret_cast<int64_t *>( p ) = static_cast<int64_t>( inValue );
break;
case Bool:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
*reinterpret_cast<bool *>( p ) = ( inValue ? false : true );
break;
case Real32:
if ( std::is_same<T, double>::value )
{
/// Does this count as conversion? It loses information.
/// Check for really large exponents that can't fit in a single
/// precision
if ( inValue < DOUBLE_MIN || DOUBLE_MAX < inValue )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( inValue ) );
}
*reinterpret_cast<float *>( p ) = static_cast<float>( inValue );
}
else
{
#ifdef _MSC_VER
// MSVC is not smart enough to realize 'inValue' cannot be a double here, so disable
// warning
#pragma warning( disable : 4244 )
*reinterpret_cast<float *>( p ) = inValue;
#pragma warning( default : 4244 )
#else
*reinterpret_cast<float *>( p ) = inValue;
#endif
}
break;
case Real64:
//??? does this count as a conversion?
*reinterpret_cast<double *>( p ) = static_cast<double>( inValue );
break;
case UString:
throw E57_EXCEPTION2( ErrorExpectingNumeric, "pathName=" + pathName_ );
}
nextIndex_++;
}
void SourceDestBufferImpl::checkState_() const
{
/// Implement checkImageFileOpen functionality for SourceDestBufferImpl ctors
/// Throw an exception if destImageFile (destImageFile_) isn't open
ImageFileImplSharedPtr destImageFile( destImageFile_ );
if ( !destImageFile->isOpen() )
{
throw E57_EXCEPTION2( ErrorImageFileNotOpen, "fileName=" + destImageFile->fileName() );
}
/// Check pathName is well formed (can't verify path is defined until
/// associate sdbuffer with CompressedVector later)
ImageFileImplSharedPtr imf( destImageFile_ );
imf->pathNameCheckWellFormed( pathName_ );
if ( memoryRepresentation_ != UString )
{
if ( base_ == nullptr )
{
throw E57_EXCEPTION2( ErrorBadBuffer, "pathName=" + pathName_ );
}
if ( stride_ == 0 )
{
throw E57_EXCEPTION2( ErrorBadBuffer, "pathName=" + pathName_ );
}
//??? check base alignment, depending on CPU type
//??? check if stride too small, positive or negative
}
else
{
if ( ustrings_ == nullptr )
{
throw E57_EXCEPTION2( ErrorBadBuffer, "pathName=" + pathName_ );
}
}
}
int64_t SourceDestBufferImpl::getNextInt64()
{
/// don't checkImageFileOpen
/// Verify index is within bounds
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Fetch value from source buffer.
/// Convert from non-integer formats if requested.
char *p = &base_[nextIndex_ * stride_];
int64_t value;
switch ( memoryRepresentation_ )
{
case Int8:
value = static_cast<int64_t>( *reinterpret_cast<int8_t *>( p ) );
break;
case UInt8:
value = static_cast<int64_t>( *reinterpret_cast<uint8_t *>( p ) );
break;
case Int16:
value = static_cast<int64_t>( *reinterpret_cast<int16_t *>( p ) );
break;
case UInt16:
value = static_cast<int64_t>( *reinterpret_cast<uint16_t *>( p ) );
break;
case Int32:
value = static_cast<int64_t>( *reinterpret_cast<int32_t *>( p ) );
break;
case UInt32:
value = static_cast<int64_t>( *reinterpret_cast<uint32_t *>( p ) );
break;
case Int64:
value = *reinterpret_cast<int64_t *>( p );
break;
case Bool:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
/// Convert bool to 0/1, all non-zero values map to 1.0
value = ( *reinterpret_cast<bool *>( p ) ) ? 1 : 0;
break;
case Real32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
//??? fault if get special value: NaN, NegInf...
value = static_cast<int64_t>( *reinterpret_cast<float *>( p ) );
break;
case Real64:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
//??? fault if get special value: NaN, NegInf...
value = static_cast<int64_t>( *reinterpret_cast<double *>( p ) );
break;
case UString:
throw E57_EXCEPTION2( ErrorExpectingNumeric, "pathName=" + pathName_ );
default:
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
nextIndex_++;
return ( value );
}
int64_t SourceDestBufferImpl::getNextInt64( double scale, double offset )
{
/// don't checkImageFileOpen
/// Reverse scale (undo scaling) of a user's number to get raw value to put
/// in file.
/// Incorporating the scale is optional (requested by user when constructing
/// the sdbuf). If the user did not request scaling, then we get raw values
/// from user's buffer.
if ( !doScaling_ )
{
/// Just return raw value.
return ( getNextInt64() );
}
/// Double check non-zero scale. Going to divide by it below.
if ( scale == 0 )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Verify index is within bounds
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Fetch value from source buffer.
/// Convert from non-integer formats if requested
char *p = &base_[nextIndex_ * stride_];
double doubleRawValue;
switch ( memoryRepresentation_ )
{
case Int8:
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<int8_t *>( p ) - offset ) / scale + 0.5 );
break;
case UInt8:
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<uint8_t *>( p ) - offset ) / scale + 0.5 );
break;
case Int16:
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<int16_t *>( p ) - offset ) / scale + 0.5 );
break;
case UInt16:
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<uint16_t *>( p ) - offset ) / scale + 0.5 );
break;
case Int32:
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<int32_t *>( p ) - offset ) / scale + 0.5 );
break;
case UInt32:
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<uint32_t *>( p ) - offset ) / scale + 0.5 );
break;
case Int64:
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<int64_t *>( p ) - offset ) / scale + 0.5 );
break;
case Bool:
if ( *reinterpret_cast<bool *>( p ) )
{
doubleRawValue = floor( ( 1 - offset ) / scale + 0.5 );
}
else
{
doubleRawValue = floor( ( 0 - offset ) / scale + 0.5 );
}
break;
case Real32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
//??? fault if get special value: NaN, NegInf...
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<float *>( p ) - offset ) / scale + 0.5 );
break;
case Real64:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
//??? fault if get special value: NaN, NegInf...
/// Calc (x-offset)/scale rounded to nearest integer, but keep in
/// floating point until sure is in bounds
doubleRawValue = floor( ( *reinterpret_cast<double *>( p ) - offset ) / scale + 0.5 );
break;
case UString:
throw E57_EXCEPTION2( ErrorExpectingNumeric, "pathName=" + pathName_ );
default:
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Make sure that value is representable in an int64_t
if ( doubleRawValue < INT64_MIN || ( doubleRawValue > ( static_cast<double>( INT64_MAX ) ) ) )
{
throw E57_EXCEPTION2( ErrorScaledValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( doubleRawValue ) );
}
auto rawValue = static_cast<int64_t>( doubleRawValue );
nextIndex_++;
return ( rawValue );
}
float SourceDestBufferImpl::getNextFloat()
{
/// don't checkImageFileOpen
/// Verify index is within bounds
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Fetch value from source buffer.
/// Convert from other formats to floating point if requested
char *p = &base_[nextIndex_ * stride_];
float value;
switch ( memoryRepresentation_ )
{
case Int8:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<float>( *reinterpret_cast<int8_t *>( p ) );
break;
case UInt8:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<float>( *reinterpret_cast<uint8_t *>( p ) );
break;
case Int16:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<float>( *reinterpret_cast<int16_t *>( p ) );
break;
case UInt16:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<float>( *reinterpret_cast<uint16_t *>( p ) );
break;
case Int32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<float>( *reinterpret_cast<int32_t *>( p ) );
break;
case UInt32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<float>( *reinterpret_cast<uint32_t *>( p ) );
break;
case Int64:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<float>( *reinterpret_cast<int64_t *>( p ) );
break;
case Bool:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
/// Convert bool to 0/1, all non-zero values map to 1.0
value = ( *reinterpret_cast<bool *>( p ) ) ? 1.0F : 0.0F;
break;
case Real32:
value = *reinterpret_cast<float *>( p );
break;
case Real64:
{
/// Check that exponent of user's value is not too large for single
/// precision number in file.
double d = *reinterpret_cast<double *>( p );
///??? silently limit here?
if ( d < DOUBLE_MIN || DOUBLE_MAX < d )
{
throw E57_EXCEPTION2( ErrorReal64TooLarge,
"pathName=" + pathName_ + " value=" + toString( d ) );
}
value = static_cast<float>( d );
break;
}
case UString:
throw E57_EXCEPTION2( ErrorExpectingNumeric, "pathName=" + pathName_ );
default:
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
nextIndex_++;
return ( value );
}
double SourceDestBufferImpl::getNextDouble()
{
/// don't checkImageFileOpen
/// Verify index is within bounds
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Fetch value from source buffer.
/// Convert from other formats to floating point if requested
char *p = &base_[nextIndex_ * stride_];
double value;
switch ( memoryRepresentation_ )
{
case Int8:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<double>( *reinterpret_cast<int8_t *>( p ) );
break;
case UInt8:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<double>( *reinterpret_cast<uint8_t *>( p ) );
break;
case Int16:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<double>( *reinterpret_cast<int16_t *>( p ) );
break;
case UInt16:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<double>( *reinterpret_cast<uint16_t *>( p ) );
break;
case Int32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<double>( *reinterpret_cast<int32_t *>( p ) );
break;
case UInt32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<double>( *reinterpret_cast<uint32_t *>( p ) );
break;
case Int64:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
value = static_cast<double>( *reinterpret_cast<int64_t *>( p ) );
break;
case Bool:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
/// Convert bool to 0/1, all non-zero values map to 1.0
value = ( *reinterpret_cast<bool *>( p ) ) ? 1.0 : 0.0;
break;
case Real32:
value = static_cast<double>( *reinterpret_cast<float *>( p ) );
break;
case Real64:
value = *reinterpret_cast<double *>( p );
break;
case UString:
throw E57_EXCEPTION2( ErrorExpectingNumeric, "pathName=" + pathName_ );
default:
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
nextIndex_++;
return ( value );
}
ustring SourceDestBufferImpl::getNextString()
{
/// don't checkImageFileOpen
/// Check have correct type buffer
if ( memoryRepresentation_ != UString )
{
throw E57_EXCEPTION2( ErrorExpectingUString, "pathName=" + pathName_ );
}
/// Verify index is within bounds
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Get ustring from vector
return ( ( *ustrings_ )[nextIndex_++] );
}
void SourceDestBufferImpl::setNextInt64( int64_t value )
{
/// don't checkImageFileOpen
/// Verify have room
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Calc start of memory location, index into buffer using stride_ (the
/// distance between elements).
char *p = &base_[nextIndex_ * stride_];
switch ( memoryRepresentation_ )
{
case Int8:
if ( value < INT8_MIN || INT8_MAX < value )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( value ) );
}
*reinterpret_cast<int8_t *>( p ) = static_cast<int8_t>( value );
break;
case UInt8:
if ( value < UINT8_MIN || UINT8_MAX < value )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( value ) );
}
*reinterpret_cast<uint8_t *>( p ) = static_cast<uint8_t>( value );
break;
case Int16:
if ( value < INT16_MIN || INT16_MAX < value )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( value ) );
}
*reinterpret_cast<int16_t *>( p ) = static_cast<int16_t>( value );
break;
case UInt16:
if ( value < UINT16_MIN || UINT16_MAX < value )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( value ) );
}
*reinterpret_cast<uint16_t *>( p ) = static_cast<uint16_t>( value );
break;
case Int32:
if ( value < INT32_MIN || INT32_MAX < value )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( value ) );
}
*reinterpret_cast<int32_t *>( p ) = static_cast<int32_t>( value );
break;
case UInt32:
if ( value < UINT32_MIN || UINT32_MAX < value )
{
throw E57_EXCEPTION2( ErrorValueNotRepresentable,
"pathName=" + pathName_ + " value=" + toString( value ) );
}
*reinterpret_cast<uint32_t *>( p ) = static_cast<uint32_t>( value );
break;
case Int64:
*reinterpret_cast<int64_t *>( p ) = static_cast<int64_t>( value );
break;
case Bool:
*reinterpret_cast<bool *>( p ) = ( value ? false : true );
break;
case Real32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
//??? very large integers may lose some lowest bits here. error?
*reinterpret_cast<float *>( p ) = static_cast<float>( value );
break;
case Real64:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
*reinterpret_cast<double *>( p ) = static_cast<double>( value );
break;
case UString:
throw E57_EXCEPTION2( ErrorExpectingNumeric, "pathName=" + pathName_ );
}
nextIndex_++;
}
void SourceDestBufferImpl::setNextInt64( int64_t value, double scale, double offset )
{
/// don't checkImageFileOpen
/// Apply a scale and offset to numbers from file before putting in user's
/// buffer.
/// Incorporating the scale is optional (requested by user when constructing
/// the sdbuf). If the user did not request scaling, then we send raw values
/// to user's buffer.
if ( !doScaling_ )
{
/// Use raw value routine, then bail out.
setNextInt64( value );
return;
}
/// Verify have room
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Calc start of memory location, index into buffer using stride_ (the
/// distance between elements).
char *p = &base_[nextIndex_ * stride_];
/// Calc x*scale+offset
double scaledValue;
if ( memoryRepresentation_ == Real32 || memoryRepresentation_ == Real64 )
{
/// Value will be stored in some floating point rep in user's buffer, so
/// keep full resolution here.
scaledValue = value * scale + offset;
}
else
{
/// Value will represented as some integer in user's buffer, so round to
/// nearest integer here. But keep in floating point rep until we know
/// that the value is representable in the user's buffer.
scaledValue = floor( value * scale + offset + 0.5 );
}
switch ( memoryRepresentation_ )
{
case Int8:
if ( scaledValue < INT8_MIN || INT8_MAX < scaledValue )
{
throw E57_EXCEPTION2( ErrorScaledValueNotRepresentable,
"pathName=" + pathName_ +
" scaledValue=" + toString( scaledValue ) );
}
*reinterpret_cast<int8_t *>( p ) = static_cast<int8_t>( scaledValue );
break;
case UInt8:
if ( scaledValue < UINT8_MIN || UINT8_MAX < scaledValue )
{
throw E57_EXCEPTION2( ErrorScaledValueNotRepresentable,
"pathName=" + pathName_ +
" scaledValue=" + toString( scaledValue ) );
}
*reinterpret_cast<uint8_t *>( p ) = static_cast<uint8_t>( scaledValue );
break;
case Int16:
if ( scaledValue < INT16_MIN || INT16_MAX < scaledValue )
{
throw E57_EXCEPTION2( ErrorScaledValueNotRepresentable,
"pathName=" + pathName_ +
" scaledValue=" + toString( scaledValue ) );
}
*reinterpret_cast<int16_t *>( p ) = static_cast<int16_t>( scaledValue );
break;
case UInt16:
if ( scaledValue < UINT16_MIN || UINT16_MAX < scaledValue )
{
throw E57_EXCEPTION2( ErrorScaledValueNotRepresentable,
"pathName=" + pathName_ +
" scaledValue=" + toString( scaledValue ) );
}
*reinterpret_cast<uint16_t *>( p ) = static_cast<uint16_t>( scaledValue );
break;
case Int32:
if ( scaledValue < INT32_MIN || INT32_MAX < scaledValue )
{
throw E57_EXCEPTION2( ErrorScaledValueNotRepresentable,
"pathName=" + pathName_ +
" scaledValue=" + toString( scaledValue ) );
}
*reinterpret_cast<int32_t *>( p ) = static_cast<int32_t>( scaledValue );
break;
case UInt32:
if ( scaledValue < UINT32_MIN || UINT32_MAX < scaledValue )
{
throw E57_EXCEPTION2( ErrorScaledValueNotRepresentable,
"pathName=" + pathName_ +
" scaledValue=" + toString( scaledValue ) );
}
*reinterpret_cast<uint32_t *>( p ) = static_cast<uint32_t>( scaledValue );
break;
case Int64:
*reinterpret_cast<int64_t *>( p ) = static_cast<int64_t>( scaledValue );
break;
case Bool:
*reinterpret_cast<bool *>( p ) = ( scaledValue ? false : true );
break;
case Real32:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
/// Check that exponent of result is not too big for single precision
/// float
if ( scaledValue < DOUBLE_MIN || DOUBLE_MAX < scaledValue )
{
throw E57_EXCEPTION2( ErrorScaledValueNotRepresentable,
"pathName=" + pathName_ +
" scaledValue=" + toString( scaledValue ) );
}
*reinterpret_cast<float *>( p ) = static_cast<float>( scaledValue );
break;
case Real64:
if ( !doConversion_ )
{
throw E57_EXCEPTION2( ErrorConversionRequired, "pathName=" + pathName_ );
}
*reinterpret_cast<double *>( p ) = scaledValue;
break;
case UString:
throw E57_EXCEPTION2( ErrorExpectingNumeric, "pathName=" + pathName_ );
}
nextIndex_++;
}
void SourceDestBufferImpl::setNextFloat( float value )
{
_setNextReal( value );
}
void SourceDestBufferImpl::setNextDouble( double value )
{
_setNextReal( value );
}
void SourceDestBufferImpl::setNextString( const ustring &value )
{
/// don't checkImageFileOpen
if ( memoryRepresentation_ != UString )
{
throw E57_EXCEPTION2( ErrorExpectingUString, "pathName=" + pathName_ );
}
/// Verify have room.
if ( nextIndex_ >= capacity_ )
{
throw E57_EXCEPTION2( ErrorInternal, "pathName=" + pathName_ );
}
/// Assign to already initialized element in vector
( *ustrings_ )[nextIndex_] = value;
nextIndex_++;
}
void SourceDestBufferImpl::checkCompatible(
const std::shared_ptr<SourceDestBufferImpl> &newBuf ) const
{
if ( pathName_ != newBuf->pathName() )
{
throw E57_EXCEPTION2( ErrorBuffersNotCompatible,
"pathName=" + pathName_ + " newPathName=" + newBuf->pathName() );
}
if ( memoryRepresentation_ != newBuf->memoryRepresentation() )
{
throw E57_EXCEPTION2( ErrorBuffersNotCompatible,
"memoryRepresentation=" + toString( memoryRepresentation_ ) +
" newMemoryType=" + toString( newBuf->memoryRepresentation() ) );
}
if ( capacity_ != newBuf->capacity() )
{
throw E57_EXCEPTION2( ErrorBuffersNotCompatible,
"capacity=" + toString( capacity_ ) +
" newCapacity=" + toString( newBuf->capacity() ) );
}
if ( doConversion_ != newBuf->doConversion() )
{
throw E57_EXCEPTION2( ErrorBuffersNotCompatible,
"doConversion=" + toString( doConversion_ ) +
"newDoConversion=" + toString( newBuf->doConversion() ) );
}
if ( stride_ != newBuf->stride() )
{
throw E57_EXCEPTION2( ErrorBuffersNotCompatible,