first draft of a Dummy-Player service

This commit is contained in:
Fischlurch 2009-01-19 11:38:20 +01:00
parent 198d6bde73
commit 29b9887faa
5 changed files with 463 additions and 111 deletions

View file

@ -257,7 +257,7 @@ def configurePlatform(env):
if not conf.CheckPkgConfig('glibmm-2.4', '2.16'):
problems.append('Unable to configure Lib glib--, exiting.')
if not conf.CheckPkgConfig('gthread-2.0', '2.12'):
if not conf.CheckPkgConfig('gthread-2.0', '2.12.4'):
problems.append('Need gthread support lib for glib-- based thread handling.')
if not conf.CheckPkgConfig('cairomm-1.0', 0.6):

View file

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/*
DUMMY-PLAYER-FACADE.hpp - access point to a dummy test player
Copyright (C) Lumiera.org
2009, Hermann Vosseler <Ichthyostega@web.de>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef PROC_INTERFACE_DUMMYPLAYER_H
#define PROC_INTERFACE_DUMMYPLAYER_H
struct lumiera_playprocess_struct { };
typedef struct lumiera_playprocess_struct lumiera_playprocess;
typedef lumiera_playprocess* LumieraPlayProcess;
#ifdef __cplusplus /* ============== C++ Interface ================= */
#include "common/subsys.hpp"
#include "include/interfaceproxy.hpp"
namespace proc {
class PlayProcess;
/******************************************************************
* Interface Proc-Layer (or maybe the backend?):
* Global access point for starting a dummy playback, generating
* some test image data for the GUI to display in a viewer window.
*
* This is a mockup service we created 1/2009 to collect some
* experiences regarding integration of the application layers.
* Lumiera is not yet able actually to deliver rendered video data.
*
*/
class DummyPlayer
{
public:
/** provide a descriptor for lumiera::AppState,
* wired accordingly to allow main to deal with
* the dummy player as independent subsystem. */
static lumiera::Subsys& getDescriptor();
/** get an implementation instance of this service */
static lumiera::facade::Accessor<DummyPlayer> facade;
//////////////////TODO: define some dummy negotiation about size and framerate....
virtual PlayProcess& start() =0;
virtual ~DummyPlayer();
};
/**
* Continuous playback process, which has been started with a specific
* output size, format and framerate. It is a handle to a calculation process,
* which is about to produce a stream of frames to be retrieved by calling
* the #getFrame function on this handle.
*
* @todo solve the lifecycle and ownership!
*/
class PlayProcess
: public LumieraPlayProcess
{
public:
virtual void pause(bool) =0;
virtual void* const getFrame() =0;
virtual ~PlayProcess();
};
} // namespace proc
extern "C" {
#endif /* =========================== CL Interface ===================== */
#include "common/interface.h"
LUMIERA_INTERFACE_DECLARE (lumieraorg_DummyPlayer, 0
, LUMIERA_INTERFACE_SLOT (LumieraPlayProcess, startPlay,(void) )
, LUMIERA_INTERFACE_SLOT (void, pausePlay,(LumieraPlayProcess, bool))
, LUMIERA_INTERFACE_SLOT (void, terminate,(LumieraPlayProcess) )
, LUMIERA_INTERFACE_SLOT (void *, getFrame, (LumieraPlayProcess) )
);
#ifdef __cplusplus
}
#endif
#endif

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/*
DummyPlayerService - access point and service implementing a dummy test player
Copyright (C) Lumiera.org
2009, Hermann Vosseler <Ichthyostega@web.de>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
* *****************************************************/
#include "proc/dummy-player-service.hpp"
#include "lib/singleton.hpp"
#include <string>
namespace proc {
using std::string;
using lumiera::Subsys;
class DummyPlayerSubsysDescriptor
: public Subsys
{
operator string () const { return "Engine"; }
bool
shouldStart (lumiera::Option&)
{
TODO ("determine, if renderengine should be started");
return false;
}
bool
start (lumiera::Option&, Subsys::SigTerm termination)
{
UNIMPLEMENTED ("pull up renderengine and register shutdown hook");
return false;
}
void
triggerShutdown () throw()
{
UNIMPLEMENTED ("initiate halting the engine");
}
bool
checkRunningState () throw()
{
//Lock guard (*this);
TODO ("implement detecting running state");
return false;
}
};
namespace {
lumiera::Singleton<DummyPlayerSubsysDescriptor> theDescriptor;
}
/** @internal intended for use by main(). */
Subsys&
DummyPlayer::getDescriptor()
{
return theDescriptor();
}
} // namespace proc

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/*
DUMMY-PLAYER-SERVICE.hpp - service implementing a dummy test player
Copyright (C) Lumiera.org
2009, Hermann Vosseler <Ichthyostega@web.de>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file notification-service.hpp
** A public service provided by the GUI, implementing the gui::GuiNotification facade interface.
** The purpose of this service is to push state update and notification of events from the lower
** layers into the Lumiera GUI. Typically, this happens asynchronously and triggered by events
** within the lower layers.
**
** This service is the implementation of a layer separation facade interface. Clients should use
** gui::GuiNotification#facade to access this service. This header defines the interface used
** to \em provide this service, not to access it.
**
** @see gui::GuiFacade
** @see guifacade.cpp starting this service
*/
#ifndef PROC_DUMMYPLAYER_SERVICE_H
#define PROC_DUMMYPLAYER_SERVICE_H
#include "include/dummy-player-facade.h"
#include "common/instancehandle.hpp"
#include "lib/singleton-ref.hpp"
namespace proc {
/******************************************************
* Actual implementation of the GuiNotification service
* within the Lumiera GTK GUI. Creating an instance of
* this class automatically registers the interface
* with the Lumiera Interface/Plugin system and creates
* a forwarding proxy within the application core to
* route calls through this interface.
*
* @todo the ctor of this class should take references
* to any internal service providers within the
* GUI which are needed to implement the service.
*/
class DummyPlayerService
: public DummyPlayer
{
/* === Implementation of the Facade Interface === */
void displayInfo (string const& text);
void triggerGuiShutdown (string const& cause);
/* === Interface Lifecycle === */
typedef lumiera::InstanceHandle< LUMIERA_INTERFACE_INAME(lumieraorg_DummyPlayer, 0)
, DummyPlayer
> ServiceInstanceHandle;
lib::SingletonRef<DummyPlayer> implInstance_;
ServiceInstanceHandle serviceInstance_;
public:
DummyPlayerService();
};
} // namespace proc
#endif