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/* Copyright 2015 Pierre Ossman for Cendio AB
*
* This 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 software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifndef __RFB_DECODEMANAGER_H__
#define __RFB_DECODEMANAGER_H__
#include <list>
#include <os/Thread.h>
#include <rfb/Region.h>
#include <rfb/encodings.h>
namespace os {
class Condition;
class Mutex;
}
namespace rdr {
struct Exception;
class MemOutStream;
}
namespace rfb {
class CConnection;
class Decoder;
class ModifiablePixelBuffer;
struct Rect;
class DecodeManager {
public:
DecodeManager(CConnection *conn);
~DecodeManager();
bool decodeRect(const Rect& r, int encoding,
ModifiablePixelBuffer* pb);
void flush();
private:
void logStats();
void setThreadException(const rdr::Exception& e);
void throwThreadException();
private:
CConnection *conn;
Decoder *decoders[encodingMax+1];
struct DecoderStats {
unsigned rects;
unsigned long long bytes;
unsigned long long pixels;
unsigned long long equivalent;
};
DecoderStats stats[encodingMax+1];
struct QueueEntry {
bool active;
Rect rect;
int encoding;
Decoder* decoder;
const ServerParams* server;
ModifiablePixelBuffer* pb;
rdr::MemOutStream* bufferStream;
Region affectedRegion;
};
std::list<rdr::MemOutStream*> freeBuffers;
std::list<QueueEntry*> workQueue;
os::Mutex* queueMutex;
os::Condition* producerCond;
os::Condition* consumerCond;
private:
class DecodeThread : public os::Thread {
public:
DecodeThread(DecodeManager* manager);
~DecodeThread();
void stop();
protected:
void worker() override;
DecodeManager::QueueEntry* findEntry();
private:
DecodeManager* manager;
bool stopRequested;
};
std::list<DecodeThread*> threads;
rdr::Exception *threadException;
};
}
#endif
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