ShKernelLib.hpp

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// Sh: A GPU metaprogramming language.
//
// Copyright 2003-2006 Serious Hack Inc.
// 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
// MA  02110-1301, USA
#ifndef SHUTIL_KERNELLIB_HPP 
#define SHUTIL_KERNELLIB_HPP 

#include <string>
#include "sh/ShLib.hpp"
#include "sh/ShMatrix.hpp"
#include "sh/ShTexture.hpp"
#include "sh/ShProgram.hpp"

namespace ShUtil {

using namespace SH;

class ShKernelLib {
  private:
    // returns the string prefix concatenated with index
    static std::string makeName(std::string prefix, int index); 

  public:

    static ShProgram outputPass( const ShProgram &p );

    static ShProgram inputPass( const ShProgram &p );

    static ShProgram shChangeBasis(std::string name="vec", 
        std::string b0Name="b0", std::string b1Name="b1", std::string b2Name="b2"); 

    // TODO make a version of this with names like RenderMan globals
    // make a version with names like Houdini globals

    template<int N, ShBindingType Binding, typename T>
    static ShProgram shVsh(const ShMatrix<N, N, Binding, T> &mv,
                           const ShMatrix<N, N, Binding, T> &mvp,
                           int numTangents = 0, int numLights = 1); 
};

}

#include "ShKernelLibImpl.hpp"

#endif

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