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/*
* Copyright 2009, Google 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 Google Inc. 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.
*/
// This file contains utility functions for marshaling between
// C++ types and dynamic types.
#ifndef O3D_PLUGIN_CROSS_MARSHALING_UTILS_H_
#define O3D_PLUGIN_CROSS_MARSHALING_UTILS_H_
#include <vector>
namespace o3d {
// Converts a std::vector<float>, representing a JavaScript array
// of numbers, to a FloatN, VectorN, or PointN. This template function
// supports conversion to any type which accesses float elements using
// operator[].
template <typename VectorType, int dimension>
VectorType VectorToType(void* plugin_data,
const std::vector<float>& dynamic_value) {
if (dynamic_value.size() != dimension) {
o3d::ServiceLocator* service_locator =
static_cast<glue::_o3d::PluginObject*>(
plugin_data)->service_locator();
O3D_ERROR(service_locator)
<< "Vector type expected array of " << dimension
<< " number values, got " << dynamic_value.size();
return VectorType();
}
VectorType vector_value;
for (int i = 0; i < dimension; ++i) {
vector_value[i] = dynamic_value[i];
}
return vector_value;
}
// Converts a FloatN, VectorN or PointN to an std::vector<float>.
// This template function supports conversion from any type which
// accesses float elements using operator[].
template <typename VectorType, int dimension>
std::vector<float> VectorFromType(const VectorType& vector_value) {
std::vector<float> dynamic_value(dimension);
for (int i = 0; i < dimension; ++i) {
dynamic_value[i] = vector_value[i];
}
return dynamic_value;
}
// Converts an std::vector<std::vector<float> > to a MatrixN.
template <typename MatrixType, int rows, int columns>
MatrixType VectorOfVectorToType(
void* plugin_data,
const std::vector<std::vector<float> >& dynamic_value) {
if (dynamic_value.size() != rows) {
o3d::ServiceLocator* service_locator =
static_cast<glue::_o3d::PluginObject*>(
plugin_data)->service_locator();
O3D_ERROR(service_locator)
<< "Matrix type expected array of " << rows
<< " arrays of " << columns << " number values, got "
<< dynamic_value.size() << " rows";
return MatrixType();
}
MatrixType matrix_value;
for (int i = 0; i != rows; ++i) {
if (dynamic_value[i].size() != columns) {
o3d::ServiceLocator* service_locator =
static_cast<glue::_o3d::PluginObject*>(
plugin_data)->service_locator();
O3D_ERROR(service_locator)
<< "Matrix type expected array of " << rows
<< " arrays of " << columns << " number values, got "
<< dynamic_value[i].size() << " columns in row "
<< i;
return MatrixType();
}
for (int j = 0; j < columns; ++j) {
matrix_value.setElem(i, j, dynamic_value[i][j]);
}
}
return matrix_value;
}
// Converts a MatrixN to a std::vector<std::vector<float> >.
template <typename MatrixType, int rows, int columns>
std::vector<std::vector<float> > VectorOfVectorFromType(
const MatrixType& matrix_value) {
std::vector<std::vector<float> > dynamic_value(rows);
for (int i = 0; i < rows; ++i) {
dynamic_value[i].resize(columns);
for (int j = 0; j < columns; ++j) {
dynamic_value[i][j] = matrix_value.getElem(i, j);
}
}
return dynamic_value;
}
} // namespace o3d
#endif // O3D_PLUGIN_CROSS_MARSHALING_UTILS_H_
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