OSGProgramChunk.h

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 * This library is free software; you can redistribute it and/or modify it   *
 * under the terms of the GNU Library General Public License as published    *
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 * 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         *
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\*---------------------------------------------------------------------------*/

#ifndef _OSGPROGRAMCHUNK_H_
#define _OSGPROGRAMCHUNK_H_
#ifdef __sgi
#pragma once
#endif

#include <OSGConfig.h>

#include <iostream>

#include <OSGProgramChunkBase.h>

OSG_BEGIN_NAMESPACE

class OSG_SYSTEMLIB_DLLMAPPING ProgramChunk : public ProgramChunkBase
{
  private:

    typedef ProgramChunkBase Inherited;

    /*==========================  PUBLIC  =================================*/
  public:

    /*---------------------------------------------------------------------*/
           virtual const StateChunkClass * getClass         (void) const;

    /*---------------------------------------------------------------------*/
    inline static        UInt32            getStaticClassId (void);
    inline static  const StateChunkClass * getStaticClass   (void);

    /*---------------------------------------------------------------------*/
    virtual void changed(BitVector  whichField, 
                         UInt32     origin    );

    /*---------------------------------------------------------------------*/
    virtual void dump(      UInt32     uiIndent = 0, 
                      const BitVector  bvFlags  = 0) const;

    /*---------------------------------------------------------------------*/
                 bool    read        (const char   *file);
                 bool    read        (std::istream &stream);
    
                 bool    addParameter(const char   *name, 
                                            Int16   index);                                     
    inline       bool    addParameter(const char   *name, 
                                            Int16   index, 
                                      const Vec4f  &value);
    
           const Vec4f  &getParameter(      Int16        index);
    inline const Vec4f  &getParameter(const char        *name );
    inline const Vec4f  &getParameter(const std::string &name );

                 bool    setParameter(      Int16  index, const Vec4f& value);
    inline       bool    setParameter(const char  *name,  const Vec4f& value);
    inline       bool    setParameter(const std::string &name, 
                                      const Vec4f       & value);
    

    inline       Int16   findParameter(const char        *name);
                 Int16   findParameter(const std::string &name);
 
    /*---------------------------------------------------------------------*/
    virtual void activate      ( DrawActionBase * action, UInt32 index = 0 );

    virtual void changeFrom    ( DrawActionBase * action, StateChunk * old,
                                 UInt32 index = 0 );

    virtual void deactivate    ( DrawActionBase * action, UInt32 index = 0 );

    virtual bool isTransparent ( void ) const;

    /*---------------------------------------------------------------------*/
    virtual Real32 switchCost  ( StateChunk * chunk );

    virtual bool   operator <  (const StateChunk &other) const;

    virtual bool   operator == (const StateChunk &other) const;
    virtual bool   operator != (const StateChunk &other) const;

    /*=========================  PROTECTED  ===============================*/
  protected:

    // Variables should all be in ProgramChunkBase.

    /*---------------------------------------------------------------------*/
    void onCreate(const ProgramChunk *source = NULL);

    /*---------------------------------------------------------------------*/
    ProgramChunk(void);
    ProgramChunk(const ProgramChunk &source);

    /*---------------------------------------------------------------------*/
    virtual ~ProgramChunk(void); 

    /*---------------------------------------------------------------------*/
    virtual       UInt32  getExtension(void)  const; 
    virtual       GLenum  getTarget(void)     const; 
    virtual const char   *getTargetName(void) const; 

                  void    printCompileError(Window *win, UInt32 idstatus);

    /*---------------------------------------------------------------------*/
    void handleGL(Window *win, UInt32 id, GLenum target, UInt32 extension);
    
    /*==========================  PRIVATE  ================================*/
  private:

    friend class FieldContainer;
    friend class ProgramChunkBase;

    static StateChunkClass _class;

    /*---------------------------------------------------------------------*/
    static UInt32 _funcGenPrograms;
    static UInt32 _funcProgramString;
    static UInt32 _funcBindProgram;
    static UInt32 _funcDeletePrograms;
    static UInt32 _funcProgramLocalParameter4fv;
    static UInt32 _funcGetProgramiv;

    static void initMethod(void);

    // prohibit default functions (move to 'public' if you need one)

    void operator =(const ProgramChunk &source);
};

typedef ProgramChunk *ProgramChunkP;

OSG_END_NAMESPACE

#include <OSGProgramChunkBase.inl>
#include <OSGProgramChunk.inl>

#define OSGPROGRAMCHUNK_HEADER_CVSID "@(#)$Id: $"

#endif /* _OSGPROGRAMCHUNK_H_ */

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