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cs440-acg/ext/openexr/PyIlmBase/PyImath/PyImathShear.h

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+///////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2007-2011, Industrial Light & Magic, a division of Lucas
+// Digital Ltd. LLC
+// 
+// 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 Industrial Light & Magic 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.
+//
+///////////////////////////////////////////////////////////////////////////
+
+#ifndef _PyImathShear_h_
+#define _PyImathShear_h_
+
+#include <Python.h>
+#include <boost/python.hpp>
+#include <ImathShear.h>
+
+
+namespace PyImath {
+
+template <class T> boost::python::class_<IMATH_NAMESPACE::Shear6<T> > register_Shear();
+
+//
+
+// Other code in the Zeno code base assumes the existance of a class with the
+// same name as the Imath class, and with static functions wrap() and
+// convert() to produce a PyImath object from an Imath object and vice-versa,
+// respectively.  The class Boost generates from the Imath class does not
+// have these properties, so we define a companion class here.
+// The template argument, T, is the element type (e.g.,float, double).
+
+template <class T>
+class S6 {
+  public:
+    static PyObject *	wrap (const IMATH_NAMESPACE::Shear6<T> &s);
+    static int		convert (PyObject *p, IMATH_NAMESPACE::Shear6<T> *s);
+};
+
+template <class T>
+PyObject *
+S6<T>::wrap (const IMATH_NAMESPACE::Shear6<T> &s)
+{
+    typename boost::python::return_by_value::apply < IMATH_NAMESPACE::Shear6<T> >::type converter;
+    PyObject *p = converter (s);
+    return p;
+}
+
+template <class T>
+int
+S6<T>::convert (PyObject *p, IMATH_NAMESPACE::Shear6<T> *s)
+{
+    boost::python::extract <IMATH_NAMESPACE::Shear6f> extractorShear6f (p);
+    if (extractorShear6f.check())
+    {
+        IMATH_NAMESPACE::Shear6f s6f = extractorShear6f();
+	float xy, xz, yz, yx, zx, zy;
+	s6f.getValue (xy, xz, yz, yx, zx, zy);
+	s->setValue(T(xy), T(xz), T(yz), T(yx), T(zx), T(zy));
+        return 1;
+    }
+
+    boost::python::extract <IMATH_NAMESPACE::Shear6d> extractorShear6d (p);
+    if (extractorShear6d.check())
+    {
+        IMATH_NAMESPACE::Shear6d s6d = extractorShear6d();
+	double xy, xz, yz, yx, zx, zy;
+	s6d.getValue (xy, xz, yz, yx, zx, zy);
+	s->setValue(T(xy), T(xz), T(yz), T(yx), T(zx), T(zy));
+        return 1;
+    }
+
+    boost::python::extract <boost::python::tuple> extractorTuple (p);
+    if (extractorTuple.check())
+    {
+        boost::python::tuple t = extractorTuple();
+        if (t.attr ("__len__") () == 3)
+        {
+            double xy = boost::python::extract <double> (t[0]);
+            double xz = boost::python::extract <double> (t[1]);
+            double yz = boost::python::extract <double> (t[2]);
+            s->setValue (T(xy), T(xz), T(yz), T(0), T(0), T(0));
+            return 1;
+        }
+
+        else if (t.attr ("__len__") () == 6)
+        {
+            double xy = boost::python::extract <double> (t[0]);
+            double xz = boost::python::extract <double> (t[1]);
+            double yz = boost::python::extract <double> (t[2]);
+            double yx = boost::python::extract <double> (t[3]);
+            double zx = boost::python::extract <double> (t[4]);
+            double zy = boost::python::extract <double> (t[5]);
+            s->setValue (T(xy), T(xz), T(yz), T(yx), T(zx), T(zy));
+            return 1;
+        }
+    }
+
+    boost::python::extract <IMATH_NAMESPACE::V3i> extractorV3i (p);
+    if (extractorV3i.check())
+    {
+        IMATH_NAMESPACE::V3i v3i = extractorV3i();
+        s->setValue (T(v3i[0]), T(v3i[1]), T(v3i[2]), T(0), T(0), T(0));
+        return 1;
+    }
+
+    boost::python::extract <IMATH_NAMESPACE::V3f> extractorV3f (p);
+    if (extractorV3f.check())
+    {
+        IMATH_NAMESPACE::V3f v3f = extractorV3f();
+        s->setValue (T(v3f[0]), T(v3f[1]), T(v3f[2]), T(0), T(0), T(0));
+        return 1;
+    }
+
+    boost::python::extract <IMATH_NAMESPACE::V3d> extractorV3d (p);
+    if (extractorV3d.check())
+    {
+        IMATH_NAMESPACE::V3d v3d = extractorV3d();
+        s->setValue (T(v3d[0]), T(v3d[1]), T(v3d[2]), T(0), T(0), T(0));
+        return 1;
+    }
+
+    return 0;
+}
+
+typedef S6<float>	Shear6f;
+typedef S6<double>	Shear6d;
+
+}
+
+#endif