SDIFType.hxx

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/*
 * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef __SDIFType__
#define __SDIFType__


#include <string.h>
#include "DataTypes.hxx"

namespace SDIF
{

        class TypeId
        {
        friend class File;
        protected:
                CLAM::TByte mData[4];
        public:
                TypeId(const char* str = "\0\0\0\0")
                {
                        memcpy(mData,str,4);    
                }
                bool operator == (const TypeId& cmp) { return !memcmp(mData,cmp.mData,4); }

                const char* String(void) const
                {
                        static char str[5];
                        memcpy(str,mData,4);
                        str[4]='\0';
                        return str;
                }

                static TypeId sDefault;
        };

        enum DataType
        {
                eUnknown  = 0,
                eFloat32  =   0x4, // 32-bit big-endian IEEE 754 float, 4 bytes
                eFloat64  =   0x8, // 64-bit big-endian IEEE 754 float, 8 bytes
                eInt32    = 0x104, // 32-bit big-endian two's complement integer, 4 bytes
                eInt64    = 0x108, // 64-bit big-endian two's complement integer, 8 bytes
                eUint42   = 0x204, // 32-bit big-endian unsigned integer, 4 bytes
                eUTF8byte = 0x301, // Byte of UTF8-encoded text, 1 bytes
                eByte     = 0x401  // Arbitrary byte, 1 bytes
        };

        template <class T> class GetType
        {
        public:
                static DataType Get(void) { return eUnknown; }
        };
        
        class TUTF8byte
        {
        public:
                char c;
        };
        
        template <> class GetType<CLAM::TFloat32>{public:static DataType Get(void){return eFloat32;}};
        template <> class GetType<CLAM::TFloat64>{public:static DataType Get(void){return eFloat64;}};
        template <> class GetType<CLAM::TInt32>{public:static DataType Get(void){return eInt32;}};
        template <> class GetType<CLAM::TInt64>{public:static DataType Get(void){return eInt64;}};
        template <> class GetType<TUTF8byte>{public:static DataType Get(void){return eUTF8byte;}};
        template <> class GetType<CLAM::TByte>{public:static DataType Get(void){return eByte;}};

}
#endif