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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 <condition_variable>
#include <exception>
#include <list>
#include <mutex>
#include <thread>
#include <core/Region.h>
#include <rfb/encodings.h>
namespace core {
struct Rect;
}
namespace rdr {
class MemOutStream;
}
namespace rfb {
class CConnection;
class Decoder;
class ModifiablePixelBuffer;
class DecodeManager {
public:
DecodeManager(CConnection *conn);
~DecodeManager();
bool decodeRect(const core::Rect& r, int encoding,
ModifiablePixelBuffer* pb);
void flush();
private:
void logStats();
void setThreadException();
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;
core::Rect rect;
int encoding;
Decoder* decoder;
const ServerParams* server;
ModifiablePixelBuffer* pb;
rdr::MemOutStream* bufferStream;
core::Region affectedRegion;
};
std::list<rdr::MemOutStream*> freeBuffers;
std::list<QueueEntry*> workQueue;
std::mutex queueMutex;
std::condition_variable producerCond;
std::condition_variable consumerCond;
private:
class DecodeThread {
public:
DecodeThread(DecodeManager* manager);
~DecodeThread();
void start();
void stop();
protected:
void worker();
DecodeManager::QueueEntry* findEntry();
private:
DecodeManager* manager;
std::thread* thread;
bool stopRequested;
};
std::list<DecodeThread*> threads;
std::exception_ptr threadException;
};
}
#endif
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