OSGShaderChunk.cpp

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/*---------------------------------------------------------------------------*\
 *                                OpenSG                                     *
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 *               Copyright (C) 2000-2002 by the OpenSG Forum                 *
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\*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*\
 *                                License                                    *
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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    *
 * by the Free Software Foundation, version 2.                               *
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 * WITHOUT ANY WARRANTY; without even the implied warranty of                *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
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/*---------------------------------------------------------------------------*\
 *                                Changes                                    *
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\*---------------------------------------------------------------------------*/

//---------------------------------------------------------------------------
//  Includes
//---------------------------------------------------------------------------

#include <stdlib.h>
#include <stdio.h>

#include <OSGConfig.h>

#include "OSGShaderChunk.h"

OSG_USING_NAMESPACE

/***************************************************************************\
 *                            Description                                  *
\***************************************************************************/

/***************************************************************************\
 *                           Class variables                               *
\***************************************************************************/

/***************************************************************************\
 *                           Class methods                                 *
\***************************************************************************/

void ShaderChunk::initMethod (void)
{
}


/***************************************************************************\
 *                           Instance methods                              *
\***************************************************************************/

/*-------------------------------------------------------------------------*\
 -  private                                                                 -
\*-------------------------------------------------------------------------*/

/*----------------------- constructors & destructors ----------------------*/

ShaderChunk::ShaderChunk(void) :
    Inherited()
{
}

ShaderChunk::ShaderChunk(const ShaderChunk &source) :
    Inherited(source)
{
}

ShaderChunk::~ShaderChunk(void)
{
}

/*----------------------------- class specific ----------------------------*/

void ShaderChunk::changed(BitVector whichField, UInt32 origin)
{
    Inherited::changed(whichField, origin);
}

void ShaderChunk::dump(      UInt32    , 
                         const BitVector ) const
{
    SLOG << "Dump ShaderChunk NI" << std::endl;
}

/*---------------------------------- Access -------------------------------*/

bool ShaderChunk::readVertexProgram(const char *file)
{
    std::ifstream s(file);
    
    if(s.good())
    {
        return readVertexProgram(s);
    }
    else
    {
        FWARNING(("ShaderChunk::readVertexProgram: couldn't open '%s' for reading!\n",
                  file));
        return false;
    }
}

bool ShaderChunk::readVertexProgram(std::istream &stream)
{
#define BUFSIZE 200
    
    getVertexProgram().erase();    
    char buf[BUFSIZE];

    if(!stream.good())
    {
        FWARNING(("SHLChunk::readVertexProgram: stream is not good!\n"));
        return false;
    }
    
    do
    {
        stream.read(buf, BUFSIZE);
        getVertexProgram().append(buf, stream.gcount());
    }
    while(!stream.eof());
    
    return true;
}

bool ShaderChunk::readFragmentProgram(const char *file)
{
    std::ifstream s(file);
    
    if(s.good())
    {
        return readFragmentProgram(s);
    }
    else
    {
        FWARNING(("ShaderChunk::readFragmentProgram: couldn't open '%s' for reading!\n",
                  file));
        return false;
    }
}

bool ShaderChunk::readFragmentProgram(std::istream &stream)
{
#define BUFSIZE 200
    
    getFragmentProgram().erase();    
    char buf[BUFSIZE];

    if(!stream.good())
    {
        FWARNING(("SHLChunk::readFragmentProgram: stream is not good!\n"));
        return false;
    }
    
    do
    {
        stream.read(buf, BUFSIZE);
        getFragmentProgram().append(buf, stream.gcount());
    }
    while(!stream.eof());
    
    return true;
}

/*------------------------------------------------------------------------*/
/*                              cvs id's                                  */

#ifdef OSG_SGI_CC
#pragma set woff 1174
#endif

#ifdef OSG_LINUX_ICC
#pragma warning( disable : 177 )
#endif

namespace
{
    static Char8 cvsid_cpp       [] = "@(#)$Id: OSGShaderChunk.cpp,v 1.4 2004/08/27 12:50:51 a-m-z Exp $";
    static Char8 cvsid_hpp       [] = OSGSHADERCHUNKBASE_HEADER_CVSID;
    static Char8 cvsid_inl       [] = OSGSHADERCHUNKBASE_INLINE_CVSID;

    static Char8 cvsid_fields_hpp[] = OSGSHADERCHUNKFIELDS_HEADER_CVSID;
}

#ifdef __sgi
#pragma reset woff 1174
#endif

---