D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlGraphics/RenderStateSet.cpp

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/*  Visualization Library                                                             */
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/*  Copyright (c) 2005-2010, Michele Bosi                                             */
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#include <vlGraphics/RenderStateSet.hpp>
#include <vlGraphics/RenderState.hpp>
#include <vlGraphics/GLSL.hpp>

using namespace vl;

//------------------------------------------------------------------------------
void RenderStateSet::setRenderState(RenderState* renderstate)
{
  if (renderstate)
  {
    if (renderstate->type() == RS_GLSLProgram)
      mGLSLProgram = dynamic_cast<GLSLProgram*>(renderstate);
    for(unsigned i=0; i<mRenderStates.size(); ++i)
    {
      if (mRenderStates[i]->type() == renderstate->type())
      {
        mRenderStates[i] = renderstate;
        return;
      }
    }
    mRenderStates.push_back( renderstate );
  }
}
//------------------------------------------------------------------------------
RenderState* RenderStateSet::renderState( ERenderState type )
{
  for(unsigned i=0; i<mRenderStates.size(); ++i)
    if ( mRenderStates[i]->type() == type )
      return mRenderStates[i].get();
  return NULL;
}
//------------------------------------------------------------------------------
const RenderState* RenderStateSet::renderState( ERenderState type ) const
{
  for(unsigned i=0; i<mRenderStates.size(); ++i)
    if ( mRenderStates[i]->type() == type )
      return mRenderStates[i].get();
  return NULL;
}
//------------------------------------------------------------------------------
void RenderStateSet::eraseRenderState(ERenderState type)
{
  if (type == RS_GLSLProgram)
    mGLSLProgram = NULL;
  for(unsigned i=0; i<mRenderStates.size(); ++i)
    if (mRenderStates[i]->type() == type)
    {
      mRenderStates.erase(mRenderStates.begin() + i);
      return;
    }
}
//------------------------------------------------------------------------------