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145 lines (131 loc) · 4.9 KB
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//////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2025, Image Engine Design Inc. 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 Image Engine Design nor the names of any
// other contributors to this software 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.
//
//////////////////////////////////////////////////////////////////////////
// This include needs to be the very first to prevent problems with warnings
// regarding redefinition of _POSIX_C_SOURCE
#include "boost/python.hpp"
#include "IECorePython/RampBinding.h"
#include "IECorePython/IECoreBinding.h"
#include "IECore/Ramp.h"
using namespace boost::python;
using namespace Imath;
using namespace std;
using namespace IECore;
namespace IECorePython
{
template<typename T>
std::string rampRepr( object x )
{
std::stringstream s;
const std::string name = extract<std::string>( x.attr( "__class__").attr( "__name__" ) );
s << "IECore." << name << "( ";
const T ramp = extract<T>( x );
s << "(";
int i = 0;
int l = ramp.points.size();
typename T::PointContainer::const_iterator it;
for( it = ramp.points.begin(); it != ramp.points.end(); it++, i++ )
{
// TODO - without this const_cast I get a link error because the const version of repr<Color3f>
// hasn't been defined
s << " ( " << it->first << ", " << IECorePython::repr( const_cast<typename T::YType&>( it->second ) ) << " )";
if( i!=l-1 )
{
s << ",";
}
}
s << "), ";
const std::string interpStr = extract<std::string>( object( ramp.interpolation ).attr( "__str__")() );
s << "IECore.RampInterpolation." << interpStr;
s << ")";
return s.str();
}
template<typename T>
T *rampConstruct( object o, const RampInterpolation &interpolation )
{
typename T::PointContainer points;
int s = extract<int>( o.attr( "__len__" )() );
for( int i=0; i<s; i++ )
{
object e = o[i];
int es = extract<int>( e.attr( "__len__" )() );
if( es!=2 )
{
throw IECore::Exception( "Each entry in the point sequence must contain two values." );
}
object xo = e[0];
object yo = e[1];
float x = extract<float>( xo );
typename T::YType y = extract<typename T::YType>( yo );
points.insert( typename T::PointContainer::value_type( x, y ) );
}
return new T( points, interpolation );
}
template<typename T>
boost::python::tuple rampPoints( const T &s )
{
boost::python::list p;
typename T::PointContainer::const_iterator it;
for( it=s.points.begin(); it!=s.points.end(); it++ )
{
p.append( make_tuple( it->first, it->second ) );
}
return boost::python::tuple( p );
}
template<typename T>
void bindRampTemplate( const char *name)
{
class_<T>( name )
.def( "__init__", make_constructor( &rampConstruct<T> ) )
.def( "__repr__", &rampRepr<T> )
.def( "points", &rampPoints<T>, "Read only access to the control points as a tuple of tuples of ( x, y ) pairs." )
.def_readwrite("interpolation", &T::interpolation)
.def( self==self )
.def( self!=self )
.def( "evaluator", &T::evaluator )
;
}
void bindRamp()
{
enum_<RampInterpolation>( "RampInterpolation" )
.value( "Linear", RampInterpolation::Linear )
.value( "CatmullRom", RampInterpolation::CatmullRom )
.value( "BSpline", RampInterpolation::BSpline )
.value( "MonotoneCubic", RampInterpolation::MonotoneCubic )
.value( "Constant", RampInterpolation::Constant )
;
bindRampTemplate<Rampff >( "Rampff" );
bindRampTemplate<RampfColor3f >( "RampfColor3f" );
bindRampTemplate<RampfColor4f >( "RampfColor4f" );
}
}