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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// 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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#ifndef _ShaderRegistry_H_
#define _ShaderRegistry_H_
#include "../api.h"
#include <boost/shared_ptr.hpp>
#include <map>
namespace avg {
class ShaderRegistry;
typedef boost::shared_ptr<ShaderRegistry> ShaderRegistryPtr;
class OGLShader;
typedef boost::shared_ptr<OGLShader> OGLShaderPtr;
class AVG_API ShaderRegistry {
public:
static ShaderRegistryPtr get();
ShaderRegistry();
virtual ~ShaderRegistry();
void setShaderPath(const std::string& sLibPath);
void setPreprocessorDefine(const std::string& sName, const std::string& sValue);
void createShader(const std::string& sID);
OGLShaderPtr getShader(const std::string& sID) const;
OGLShaderPtr getCurShader() const;
void setCurShader(const std::string& sID);
private:
void loadShaderString(const std::string& sFilename, std::string& sPreprocessed);
void preprocess(const std::string& sShaderCode, const std::string& sFileName,
std::string& sProcessed);
std::string createPrefixString(bool bFragment);
void throwParseError(const std::string& sFileName, int curLine);
typedef std::map<std::string, OGLShaderPtr> ShaderMap;
ShaderMap m_ShaderMap;
OGLShaderPtr m_pCurShader;
std::map<std::string, std::string> m_PreprocessorDefinesMap;
static std::string s_sLibPath;
};
void createShader(const std::string& sID);
OGLShaderPtr getShader(const std::string& sID);
}
#endif
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