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/*
* Image plugin to VDR (C++)
*
* (C) 2004-2011 Andreas Brachold <vdr07 at deltab.de>
* 2003 Kai Tobias Burwieck <kai-at-burwieck.net>
*
* This code is distributed under the terms and conditions of the
* GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
*
*/
#ifndef ___DVB_IMAGE_H
#define ___DVB_IMAGE_H
#include <vector>
#define __STL_CONFIG_H
#include <vdr/thread.h>
#include <vdr/player.h>
#include <liboutput/stillimage-player.h>
class cImageData;
class cSlideShow;
struct cShellWrapper {
char* szCmd;
char* szPNM;
char szNumber;
bool bClearBackground;
unsigned int nOffLeft;
unsigned int nOffTop;
unsigned int nWidth;
unsigned int nHeight;
cShellWrapper()
: szCmd(NULL)
, szPNM(NULL)
, szNumber('\0')
{
}
virtual ~cShellWrapper() {
if(szPNM)
free(szPNM);
if(szCmd)
free(szCmd);
}
};
struct cShellWrapperQueue
: public std::vector<cShellWrapper*>
{
virtual ~cShellWrapperQueue()
{
iterator i = begin();
const_iterator e = end();
for(;e!=i;++i)
delete(*i);
clear();
}
inline size_t max_size() const
{
return 64;
}
inline bool add(cShellWrapper* pCmd) {
if(size()<max_size())
{
if(NULL == pCmd->szPNM || !pCmd->bClearBackground) //Pregeneration or Index
push_back(pCmd);
else {
// Remove all other viewed images from queue
iterator i = begin();
while(end()!=i) {
if((*i)->szPNM) {
delete(*i);
erase(i);
}
else
++i;
}
//Place next viewed image at front of the queue
insert(begin(),pCmd);
}
return true;
}
return false;
}
};
class cImagePlayer
: public cStillImagePlayer
{
volatile bool m_bConvertRunning;
cMutex m_Mutex;
cShellWrapperQueue m_queue;
cMutex m_MutexErr;
char* m_szError;
protected:
void Exec(cShellWrapper* pCmd);
void LoadImage(cShellWrapper* pShell);
/** Show Errorimage if operation failed*/
void ExecFailed(cShellWrapper* pShell,const char* szErr);
virtual void Activate(bool On);
virtual bool Worker(bool bDoIt);
public:
cImagePlayer(cSlideShow *pCurSlideShow);
virtual ~ cImagePlayer();
bool IsConvertRunning() const { return m_bConvertRunning; };
bool NextImage(int Step);
bool PrevImage(int Step);
bool GotoImage(unsigned int nNewPictureIndex);
/** Deliver the filename from the current number of viewed Image */
const char* FileName(void) const;
bool Convert(const char *szChange);
bool ConvertZoom(const char *szChange, int nZoomFaktor,
int nLeftPos, int nTopPos);
bool ConvertJump(int Step);
/** Returns the current and total frame index, optionally snapped to the
nearest I-frame.*/
virtual bool GetIndex(int &Current, int &Total, bool SnapToIFrame);
/** ThreadSafe Method to show messages from Worker thread*/
void ErrorMsg();
};
#endif //__DVB_IMAGE_H
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