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/*
(c) Copyright 2012-2013 DirectFB integrated media GmbH
(c) Copyright 2001-2013 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Shimokawa <andi@directfb.org>,
Marek Pikarski <mass@directfb.org>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef __VOODOO__CONNECTION_LINK_H__
#define __VOODOO__CONNECTION_LINK_H__
#include <voodoo/connection.h>
extern "C" {
#include <direct/thread.h>
}
#define VOODOO_CONNECTION_PACKET_NUM_OUTPUT 2
#define VOODOO_CONNECTION_LINK_INPUT_BUF_MAX ((VOODOO_PACKET_MAX + sizeof(VoodooPacketHeader)) * 1)
class VoodooConnectionLink : public VoodooConnection {
protected:
struct {
u8 *buffer;
size_t start;
size_t last;
size_t end;
size_t max;
} input;
struct {
DirectMutex lock;
DirectWaitQueue wait;
DirectTLS tls;
DirectLink *packets;
VoodooPacket *sending;
size_t sent;
} output;
public:
VoodooConnectionLink( VoodooLink *link );
virtual ~VoodooConnectionLink();
virtual VoodooPacket *GetPacket( size_t length );
virtual void PutPacket( VoodooPacket *packet,
bool flush );
virtual void Stop ();
virtual void WakeUp ();
private:
void Flush ( VoodooPacket *packet );
static void OutputTLS_Destructor( void *ptr );
private:
friend class Packets;
class Packets {
private:
int magic;
VoodooConnectionLink *connection;
VoodooPacket *packets[VOODOO_CONNECTION_PACKET_NUM_OUTPUT];
size_t next;
size_t num;
public:
VoodooPacket *active;
public:
Packets( VoodooConnectionLink *connection );
~Packets();
VoodooPacket *Get();
};
};
#endif
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