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Coin / src / shadows / SoGLShadowCullingElement.cpp

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Peder Blekken fb7361a 
Marius Kintel 3ba6b41 




























Peder Blekken fb7361a 














Jostein 62cd825 
Peder Blekken fb7361a 



























































Jostein 62cd825 
Peder Blekken fb7361a 






Jostein 62cd825 
Peder Blekken fb7361a 
















Jostein 62cd825 
Peder Blekken fb7361a 


Lars J. Aas 251277c 









/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * 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 the copyright holder 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
 * HOLDER 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.
\**************************************************************************/

/*!
  \class SoGLShadowCullingElement Inventor/elements/SoGLShadowCullingElement.h
  \brief The SoGLShadowCullingElement class is yet to be documented.
  \ingroup elements

  FIXME: write doc.

  \since Coin 2.5
*/

#include <Inventor/annex/FXViz/elements/SoGLShadowCullingElement.h>
#include <assert.h>
#include <Inventor/system/gl.h>
#include "coindefs.h"

/*!
  \fn SoGLShadowCullingElement::Mode

  FIXME: write doc.
*/

SO_ELEMENT_SOURCE(SoGLShadowCullingElement);

// doc in parent
void
SoGLShadowCullingElement::initClass(void)
{
  SO_ELEMENT_INIT_CLASS(SoGLShadowCullingElement, inherited);
}

/*!
  The destructor.
*/

SoGLShadowCullingElement::~SoGLShadowCullingElement(void)
{
}

//! FIXME: write doc.

void
SoGLShadowCullingElement::set(SoState * const state,
                              SoNode * const node,
                              const int mode)
{
  SoInt32Element::set(classStackIndex, state, node, mode);
}

//! FIXME: write doc.

void
SoGLShadowCullingElement::init(SoState * state)
{
  inherited::init(state);
  this->data = getDefault();
}

//! FIXME: write doc.

int
SoGLShadowCullingElement::get(SoState * const state)
{
  return SoInt32Element::get(classStackIndex, state);
}

//! FIXME: write doc.

int
SoGLShadowCullingElement::getDefault(void)
{
  return AS_IS_CULLING;
}

void 
SoGLShadowCullingElement::push(SoState * COIN_UNUSED_ARG(state))
{
  SoGLShadowCullingElement * prev = (SoGLShadowCullingElement*) this->getNextInStack();

  this->data = prev->data;
}

void 
SoGLShadowCullingElement::pop(SoState * COIN_UNUSED_ARG(state), const SoElement * prevTopElement)
{
  SoGLShadowCullingElement * prev = (SoGLShadowCullingElement*) prevTopElement;
  if (prev->data != this->data) {
    this->updateGL(prev->data, this->data);
  }
}

void 
SoGLShadowCullingElement::setElt(int32_t value)
{
  if (this->data != value) {
    this->updateGL(this->data, value);
  }
  inherited::setElt(value);
}

void 
SoGLShadowCullingElement::updateGL(int32_t COIN_UNUSED_ARG(oldvalue), int32_t COIN_UNUSED_ARG(value))
{
  // nothing to do yet. We might support more culling modes in the future though
}


#ifdef COIN_TEST_SUITE

BOOST_AUTO_TEST_CASE(initialized)
{
  BOOST_CHECK_MESSAGE(SoGLShadowCullingElement::getClassStackIndex() != -1,
                      "missing class initialization");
}

#endif // COIN_TEST_SUITE