vertexpalettemanager.cpp

最新osg包

    for( idx=0; idx<v->size(); idx++)
    {
        uint32  packedColor( 0 );
        if (c && colorPerVertex)
        {
            osg::Vec4 color = (*c)[ idx ];
            packedColor = (int)(color[3]*255) << 24 |
                (int)(color[2]*255) << 16 | (int)(color[1]*255) << 8 |
                (int)(color[0]*255);
        }

        // Write fields common to all record types.
        _vertices->writeInt16( opcode );
        _vertices->writeUInt16( sizeBytes );
        _vertices->writeUInt16( 0 ); // Color name
        _vertices->writeInt16( flags ); // Flags
        _vertices->writeVec3d( (*v)[ idx ] ); // Vertex

        // Now write record-specific field.
        switch( recType )
        {
        case VERTEX_C:
            _vertices->writeInt32( packedColor ); // Packed color
            _vertices->writeUInt32( 0 ); // Vertex color index
            break;
        case VERTEX_CN:
            _vertices->writeVec3f( (*n)[ idx ] ); // Normal
            _vertices->writeInt32( packedColor ); // Packed color
            _vertices->writeUInt32( 0 ); // Vertex color index
            if (_fltOpt.getFlightFileVersionNumber() > ExportOptions::VERSION_15_7)
                _vertices->writeUInt32( 0 ); // Reserved
            break;
        case VERTEX_CNT:
            _vertices->writeVec3f( (*n)[ idx ] ); // Normal
            _vertices->writeVec2f( (*t)[ idx ] ); // Tex coord
            _vertices->writeInt32( packedColor ); // Packed color
            _vertices->writeUInt32( 0 ); // Vertex color index
            _vertices->writeUInt32( 0 ); // Reserved
            break;
        case VERTEX_CT:
            _vertices->writeVec2f( (*t)[ idx ] ); // Tex coord
            _vertices->writeInt32( packedColor ); // Packed color
            _vertices->writeUInt32( 0 ); // Vertex color index
            break;
        }
    }
}



osg::ref_ptr< const osg::Vec2Array >
VertexPaletteManager::asVec2Array( const osg::Array* in, const unsigned int n )
{
    if (!in)
        return NULL;

    osg::Array::Type arrayType = in->getType();
    if (arrayType == osg::Array::Vec2ArrayType)
    {
        if (n <= in->getNumElements())
        {
            osg::ref_ptr< const osg::Vec2Array > v2f =
                dynamic_cast< const osg::Vec2Array* >( in );
            return v2f;
        }
    }

    const unsigned int nToCopy = ( (n < in->getNumElements()) ? n : in->getNumElements() );
    osg::ref_ptr< osg::Vec2Array > ret = new osg::Vec2Array( n );

    switch( arrayType )
    {
    case osg::Array::Vec2ArrayType:
    {
        // No need to convert data, but must copy into correctly-sized array.
        // If the size was correct, we wouldn't be here.
        osg::ref_ptr< const osg::Vec2Array > v2f =
            dynamic_cast< const osg::Vec2Array* >( in );
        ret->assign( v2f->begin(), v2f->end() );;
        ret->resize( n );
        return ret.get();
    }
    case osg::Array::Vec2dArrayType:
    {
        osg::ref_ptr< const osg::Vec2dArray > v2d =
            dynamic_cast< const osg::Vec2dArray* >( in );
        unsigned int idx;
        for (idx=0; idx<nToCopy; idx++ )
            (*ret)[ idx ] = (*v2d)[ idx ]; // convert Vec2 double to Vec2 float
        return ret.get();
    }
    default:
    {
        osg::notify( osg::WARN ) << "fltexp: Unsupported array type in conversion to Vec2Array: " << arrayType << std::endl;
        return NULL;
    }
    }
}
osg::ref_ptr< const osg::Vec3Array >
VertexPaletteManager::asVec3Array( const osg::Array* in, const unsigned int n )
{
    if (!in)
        return NULL;

    osg::Array::Type arrayType = in->getType();
    if (arrayType == osg::Array::Vec3ArrayType)
    {
        if (n <= in->getNumElements())
        {
            osg::ref_ptr< const osg::Vec3Array > v3f =
                dynamic_cast< const osg::Vec3Array* >( in );
            return v3f;
        }
    }

    const unsigned int nToCopy = ( (n < in->getNumElements()) ? n : in->getNumElements() );
    osg::ref_ptr< osg::Vec3Array > ret = new osg::Vec3Array( n );

    switch( arrayType )
    {
    case osg::Array::Vec3ArrayType:
    {
        // No need to convert data, but must copy into correctly-sized array.
        // If the size was correct, we wouldn't be here.
        osg::ref_ptr< const osg::Vec3Array > v3f =
            dynamic_cast< const osg::Vec3Array* >( in );
        ret->assign( v3f->begin(), v3f->end() );;
        ret->resize( n );
        return ret.get();
    }
    case osg::Array::Vec3dArrayType:
    {
        osg::ref_ptr< const osg::Vec3dArray > v3d =
            dynamic_cast< const osg::Vec3dArray* >( in );
        unsigned int idx;
        for (idx=0; idx<nToCopy; idx++ )
            (*ret)[ idx ] = (*v3d)[ idx ]; // convert Vec3 double to Vec3 float
        return ret.get();
    }
    default:
    {
        osg::notify( osg::WARN ) << "fltexp: Unsupported array type in conversion to Vec3Array: " << arrayType << std::endl;
        return NULL;
    }
    }
}
osg::ref_ptr< const osg::Vec3dArray >
VertexPaletteManager::asVec3dArray( const osg::Array* in, const unsigned int n )
{
    if (!in)
        return NULL;

    osg::Array::Type arrayType = in->getType();
    if (arrayType == osg::Array::Vec3dArrayType)
    {
        if (n <= in->getNumElements())
        {
            osg::ref_ptr< const osg::Vec3dArray > v3d =
                dynamic_cast< const osg::Vec3dArray* >( in );
            return v3d;
        }
    }

    const unsigned int nToCopy = ( (n < in->getNumElements()) ? n : in->getNumElements() );
    osg::ref_ptr< osg::Vec3dArray > ret = new osg::Vec3dArray( n );

    switch( arrayType )
    {
    case osg::Array::Vec3dArrayType:
    {
        // No need to convert data, but must copy into correctly-sized array.
        // If the size was correct, we wouldn't be here.
        osg::ref_ptr< const osg::Vec3dArray > v3d =
            dynamic_cast< const osg::Vec3dArray* >( in );
        ret->assign( v3d->begin(), v3d->end() );;
        ret->resize( n );
        return ret.get();
    }
    case osg::Array::Vec3ArrayType:
    {
        osg::ref_ptr< const osg::Vec3Array > v3f =
            dynamic_cast< const osg::Vec3Array* >( in );
        unsigned int idx;
        for (idx=0; idx<nToCopy; idx++ )
            (*ret)[ idx ] = (*v3f)[ idx ]; // convert Vec3 float to Vec3 double
        return ret.get();
    }
    default:
    {
        osg::notify( osg::WARN ) << "fltexp: Unsupported array type in conversion to Vec3dArray: " << arrayType << std::endl;
        return NULL;
    }
    }
}
osg::ref_ptr< const osg::Vec4Array >
VertexPaletteManager::asVec4Array( const osg::Array* in, const unsigned int n )
{
    if (!in)
        return NULL;

    osg::Array::Type arrayType = in->getType();
    if (arrayType == osg::Array::Vec4ArrayType)
    {
        if (n <= in->getNumElements())
        {
            osg::ref_ptr< const osg::Vec4Array > v4f =
                dynamic_cast< const osg::Vec4Array* >( in );
            return v4f;
        }
    }

    const unsigned int nToCopy = ( (n < in->getNumElements()) ? n : in->getNumElements() );
    osg::ref_ptr< osg::Vec4Array > ret = new osg::Vec4Array( n );

    switch( arrayType )
    {
    case osg::Array::Vec4ArrayType:
    {
        // No need to convert data, but must copy into correctly-sized array.
        // If the size was correct, we wouldn't be here.
        osg::ref_ptr< const osg::Vec4Array > v4f =
            dynamic_cast< const osg::Vec4Array* >( in );
        ret->assign( v4f->begin(), v4f->end() );;
        ret->resize( n );
        return ret.get();
    }
    case osg::Array::Vec4ubArrayType:
    {
        osg::ref_ptr< const osg::Vec4ubArray > v4ub =
            dynamic_cast< const osg::Vec4ubArray* >( in );
        unsigned int idx;
        for (idx=0; idx<nToCopy; idx++ )
        {
            // convert Vec4 unsigned byte to Vec4 float
            osg::Vec4& dest = (*ret)[ idx ];
            osg::Vec4ub src = (*v4ub)[ idx ];
            dest[0] = src[0] / 255.f;
            dest[1] = src[1] / 255.f;
            dest[2] = src[2] / 255.f;
            dest[3] = src[3] / 255.f;
        }
        return ret.get();
    }
    default:
    {
        osg::notify( osg::WARN ) << "fltexp: Unsupported array type in conversion to Vec4Array: " << arrayType << std::endl;
        return NULL;
    }
    }
}



VertexPaletteManager::ArrayInfo::ArrayInfo()
  : _byteStart( 0 ),
    _idxSizeBytes( 0 ),
    _idxCount( 0 )
{
}


}