DefaultObjectMarker.cc

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/*===========================================================================*\
*                                                                            *
*   $Revision$                                                       *
*   $LastChangedBy$                                                *
*   $Date$                     *
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\*===========================================================================*/

#include <OpenFlipper/common/Types.hh>
#include "DefaultObjectMarker.hh"

//******************************************************************************

const ACG::Vec4f base_color (0.6f,0.6f,0.6f,1.0f);
const ACG::Vec4f source_color (0.6f,0.6f,1.0f,1.0f);
const ACG::Vec4f target_color (1.0f,1.0f,1.0f,1.0f);
const ACG::Vec4f source_target_color (0.6f,1.0f,1.0f,1.0f);

//******************************************************************************

bool DefaultObjectMarker::stencilRefForObject(BaseObjectData * _obj, GLuint & _reference)
{
  if (!_obj->target() && !_obj->source())
  {
    _reference = 1;
    return true;
  }
  else if (!_obj->target() && _obj->source())
  {
    _reference = 2;
    return true;
  }
  else if (_obj->target() && !_obj->source())
  {
    _reference = 3;
    return true;
  }
  else if (_obj->target() && _obj->source())
  {
    _reference = 4;
    return true;
  }

  return false;
}

bool DefaultObjectMarker::blendForStencilRefNumber(GLuint _reference, GLenum & _src, GLenum & _dst, ACG::Vec4f & _color)
{
  _src = GL_ZERO;
  _dst = GL_SRC_COLOR;

  switch (_reference)
  {
    case 1:
      _color = base_color;
      return true;
    case 2:
      _color = source_color;
      return true;
    case 3:
      _color = target_color;
      return true;
    case 4:
      _color = source_target_color;
      return true;
    default:
      return false;
  }
  return false;
}