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/**************************************************************************\
*
* This file is part of the Coin 3D visualization library.
* Copyright (C) by Kongsberg Oil & Gas Technologies.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.GPL at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using Coin with software that can not be combined with the GNU
* GPL, and for taking advantage of the additional benefits of our
* support services, please contact Kongsberg Oil & Gas Technologies
* about acquiring a Coin Professional Edition License.
*
* See http://www.coin3d.org/ for more information.
*
* Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
* http://www.sim.no/ sales@sim.no coin-support@coin3d.org
*
\**************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif // HAVE_CONFIG_H
#ifdef HAVE_VRML97
/*!
\class SoVRMLColor SoVRMLColor.h Inventor/VRMLnodes/SoVRMLColor.h
\brief The SoVRMLColor class is used to specify multiple colors for a single shape.
\ingroup VRMLnodes
\WEB3DCOPYRIGHT
\verbatim
Color {
exposedField MFColor color [] # [0,1]
}
\endverbatim
This node defines a set of RGB colours to be used in the fields of
another node.
Color nodes are only used to specify multiple colours for a single
geometric shape, such as colours for the faces or vertices of an
IndexedFaceSet. A Material node is used to specify the overall
material parameters of lit geometry. If both a Material node and a
Color node are specified for a geometric shape, the colours shall
replace the diffuse component of the material. RGB or RGBA textures
take precedence over colours; specifying both an RGB or RGBA texture
and a Color node for geometric shape will result in the Color node
being ignored. Details on lighting equations can be found in 4.14,
Lighting model
(<http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.14>).
*/
/*!
\var SoMFColor SoVRMLColor::color
The color field. Empty by default.
*/
#include <Inventor/VRMLnodes/SoVRMLColor.h>
#include <Inventor/VRMLnodes/SoVRMLMacros.h>
#include <Inventor/actions/SoCallbackAction.h>
#include <Inventor/actions/SoGLRenderAction.h>
#include <Inventor/actions/SoPickAction.h>
#include <Inventor/elements/SoLazyElement.h>
#include <Inventor/elements/SoOverrideElement.h>
#include <Inventor/elements/SoGLVBOElement.h>
#ifdef COIN_THREADSAFE
#include <Inventor/threads/SbStorage.h>
#endif // COIN_THREADSAFE
#include "nodes/SoSubNodeP.h"
#include "misc/SoVBO.h"
class SoVRMLColorP {
public:
SoVRMLColorP() :
#ifdef COIN_THREADSAFE
colorpacker_storage(sizeof(void*), alloc_colorpacker, free_colorpacker),
#endif // COIN_THREADSAFE
vbo(NULL)
{ }
~SoVRMLColorP() { delete this->vbo; }
#ifdef COIN_THREADSAFE
SbStorage colorpacker_storage;
#else // COIN_THREADSAFE
SoColorPacker single_colorpacker;
#endif // COIN_THREADSAFE
SoColorPacker * getColorPacker(void) {
#ifdef COIN_THREADSAFE
SoColorPacker ** cptr = (SoColorPacker**) this->colorpacker_storage.get();
return * cptr;
#else // COIN_THREADSAFE
return &this->single_colorpacker;
#endif // COIN_THREADSAFE
}
SoVBO * vbo;
#ifdef COIN_THREADSAFE
private:
static void alloc_colorpacker(void * data) {
SoColorPacker ** cptr = (SoColorPacker**) data;
*cptr = new SoColorPacker;
}
static void free_colorpacker(void * data) {
SoColorPacker ** cptr = (SoColorPacker**) data;
delete *cptr;
}
#endif // COIN_THREADSAFE
};
#define PRIVATE(obj) ((obj)->pimpl)
SO_NODE_SOURCE(SoVRMLColor);
// doc in parent
void
SoVRMLColor::initClass(void) // static
{
SO_NODE_INTERNAL_INIT_CLASS(SoVRMLColor, SO_VRML97_NODE_TYPE);
}
/*!
Constructor.
*/
SoVRMLColor::SoVRMLColor(void)
{
PRIVATE(this) = new SoVRMLColorP;
SO_VRMLNODE_INTERNAL_CONSTRUCTOR(SoVRMLColor);
SO_VRMLNODE_ADD_EMPTY_EXPOSED_MFIELD(color);
}
/*!
Destructor.
*/
SoVRMLColor::~SoVRMLColor() // virtual, protected
{
delete PRIVATE(this);
}
// Doc in parent
void
SoVRMLColor::doAction(SoAction * action)
{
SoState * state = action->getState();
const int num = this->color.getNum();
if (num &&
!this->color.isIgnored() &&
!SoOverrideElement::getDiffuseColorOverride(state)) {
SoLazyElement::setDiffuse(state,
this,
num,
this->color.getValues(0),
PRIVATE(this)->getColorPacker());
if (state->isElementEnabled(SoGLVBOElement::getClassStackIndex())) {
SbBool setvbo = FALSE;
SoBase::staticDataLock();
if (SoGLVBOElement::shouldCreateVBO(state, num)) {
setvbo = TRUE;
if (PRIVATE(this)->vbo == NULL) {
PRIVATE(this)->vbo = new SoVBO(GL_ARRAY_BUFFER, GL_STATIC_DRAW);
}
}
else if (PRIVATE(this)->vbo) {
PRIVATE(this)->vbo->setBufferData(NULL, 0, 0);
}
// don't fill in any data in the VBO. Data will be filled in
// using the ColorPacker right before the VBO is used
SoBase::staticDataUnlock();
if (setvbo) {
SoGLVBOElement::setColorVBO(state, PRIVATE(this)->vbo);
}
}
if (this->isOverride()) {
SoOverrideElement::setDiffuseColorOverride(state, this, TRUE);
}
}
}
// Doc in parent
void
SoVRMLColor::GLRender(SoGLRenderAction * action)
{
SoVRMLColor::doAction((SoAction*) action);
}
// Doc in parent
void
SoVRMLColor::callback(SoCallbackAction * action)
{
SoVRMLColor::doAction((SoAction*) action);
}
#undef PRIVATE
#endif // HAVE_VRML97
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