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// This file contains the definition of class Matrix4Composition.

#include "core/cross/matrix4_composition.h"

namespace o3d {

O3D_DEFN_CLASS(Matrix4Composition, ParamObject);

const char* Matrix4Composition::kInputMatrixParamName =
    O3D_STRING_CONSTANT("inputMatrix");
const char* Matrix4Composition::kLocalMatrixParamName =
    O3D_STRING_CONSTANT("localMatrix");
const char* Matrix4Composition::kOutputMatrixParamName =
    O3D_STRING_CONSTANT("outputMatrix");

Matrix4Composition::Matrix4Composition(
    ServiceLocator* service_locator)
    : ParamObject(service_locator) {
  RegisterParamRef(kInputMatrixParamName, &input_matrix_param_);
  RegisterParamRef(kLocalMatrixParamName, &local_matrix_param_);
  SlaveParamMatrix4::RegisterParamRef(kOutputMatrixParamName,
                                      &output_matrix_param_, this);
}

void Matrix4Composition::UpdateOutputs() {
  Matrix4 output_matrix = input_matrix_param_->value() *
      local_matrix_param_->value();
  output_matrix_param_->set_dynamic_value(output_matrix);
}

ObjectBase::Ref Matrix4Composition::Create(ServiceLocator* service_locator) {
  return ObjectBase::Ref(new Matrix4Composition(service_locator));
}
}  // namespace o3d