referencepackettemplate.h

来自「Linux下比较早的基于命令行的DVD播放器」· C头文件 代码 · 共 173 行

//
// Copyright (c) 2003 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// 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 DXR3PLAYER_DVD_PACKET_REFERENCEPACKETTEMPLATE_H
#define DXR3PLAYER_DVD_PACKET_REFERENCEPACKETTEMPLATE_H
//------------------------------------------------------------------------------

#include "dvd/packet/Packet.h"

#include <util/Reference.h>

#include <cstdio>

//------------------------------------------------------------------------------

namespace dvd { namespace packet {

//------------------------------------------------------------------------------

class Packet;

//------------------------------------------------------------------------------

/**
 * Mixin template for packets that contain a reference to another one.
 */
template <class Super, class PacketT = Packet>
class ReferencePacketTemplate : public Super
{
protected:
    /**
     * The reference to the other packet.
     */
    Reference<PacketT> otherPacket;

public:
    /**
     * Construct the template for the given packet.
     */
    ReferencePacketTemplate(Reference<PacketT> otherPacket);

    /**
     * Construct the template for the given packet and another
     * parameter passed to the superclass.
     */
    template <typename T>
    ReferencePacketTemplate(T& p1, Reference<PacketT> otherPacket);

    /**
     * Construct the template for the given packet and 2 other
     * parameters passed to the superclass.
     */
    template <typename T1, typename T2>
    ReferencePacketTemplate(T1 p1, T2 p2, Reference<PacketT> otherPacket);

    /**
     * Construct the template for the given packet and 3 other
     * parameters passed to the superclass.
     */
    template <typename T1, typename T2, typename T3>
    ReferencePacketTemplate(T1 p1, T2 p2, T3 p3, Reference<PacketT> otherPacket);

    /**
     * Construct the template for the given packet and 4 other
     * parameters passed to the superclass.
     */
    template <typename T1, typename T2, typename T3, typename T4>
    ReferencePacketTemplate(T1 p1, T2 p2, T3 p3, T4 p4, 
                            Reference<PacketT> otherPacket);

    /**
     * @see Packet::getDescription
     */
    virtual void getDescription(char* dest, size_t length) const;
};

//------------------------------------------------------------------------------
// Template definitions
//------------------------------------------------------------------------------

template <class Super, class PacketT>
inline ReferencePacketTemplate<Super, PacketT>::
ReferencePacketTemplate(Reference<PacketT> otherPacket) :
    otherPacket(otherPacket)
{
}

//------------------------------------------------------------------------------

template <class Super, class PacketT>
template <typename T>
inline ReferencePacketTemplate<Super, PacketT>::
ReferencePacketTemplate(T& p1, Reference<PacketT> otherPacket) :
    Super(p1),
    otherPacket(otherPacket)
{
}

//------------------------------------------------------------------------------

template <class Super, class PacketT>
template <typename T1, typename T2>
inline ReferencePacketTemplate<Super, PacketT>::
ReferencePacketTemplate(T1 p1, T2 p2, Reference<PacketT> otherPacket) :
    Super(p1, p2),
    otherPacket(otherPacket)
{
}

//------------------------------------------------------------------------------

template <class Super, class PacketT>
template <typename T1, typename T2, typename T3>
inline ReferencePacketTemplate<Super, PacketT>::
ReferencePacketTemplate(T1 p1, T2 p2, T3 p3, Reference<PacketT> otherPacket) :
    Super(p1, p2, p3),
    otherPacket(otherPacket)
{
}

//------------------------------------------------------------------------------

template <class Super, class PacketT>
template <typename T1, typename T2, typename T3, typename T4>
inline ReferencePacketTemplate<Super, PacketT>::
ReferencePacketTemplate(T1 p1, T2 p2, T3 p3, T4 p4,
                        Reference<PacketT> otherPacket) :
    Super(p1, p2, p3, p4),
    otherPacket(otherPacket)
{
}

//------------------------------------------------------------------------------

template <class Super, class PacketT>
void ReferencePacketTemplate<Super, PacketT>::
getDescription(char* dest, size_t length) const
{
    char buffer[256];
    
    otherPacket->getDescription(buffer, sizeof(buffer));

    snprintf(dest, length, "reference for %s", buffer);
}

//------------------------------------------------------------------------------

} /* namespace dvd::packet */ } /* namespace dvd */

//------------------------------------------------------------------------------
#endif // DXR3PLAYER_DVD_PACKET_REFERENCEPACKETTEMPLATE_H

// Local variables:
// mode: c++
// End: