127 lines
3.9 KiB
C++
127 lines
3.9 KiB
C++
/*
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DUMMY-PLAYER-FACADE.h - access point to a dummy test player
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Copyright (C) Lumiera.org
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2009, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef PROC_INTERFACE_DUMMYPLAYER_H
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#define PROC_INTERFACE_DUMMYPLAYER_H
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#include "include/display-facade.h"
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#include "include/display-handles.h"
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#ifdef __cplusplus /* ============== C++ Interface ================= */
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#include "common/subsys.hpp"
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#include "include/interfaceproxy.hpp"
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#include "lib/handle.hpp"
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#include <boost/noncopyable.hpp>
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namespace proc {
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namespace play {
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class ProcessImpl;
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} }
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namespace lumiera {
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/******************************************************************
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* Experimental Interface Proc-Layer (or maybe the backend?):
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* Global access point for starting a dummy playback, generating
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* some test image data for the GUI to display in a viewer window.
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*
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* This is a mockup service we created 1/2009 to collect some
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* experiences regarding integration of the application layers.
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* Lumiera is not yet able actually to deliver rendered video data.
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*
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*/
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class DummyPlayer
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{
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public:
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/** provide a descriptor for lumiera::AppState,
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* wired accordingly to allow main to deal with
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* the dummy player as independent subsystem. */
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static lumiera::Subsys& getDescriptor();
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/** get an implementation instance of this service */
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static lumiera::facade::Accessor<DummyPlayer> facade;
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/**
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* Continuous playback process, which has been started with a specific
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* output size, format and framerate. It is a handle to a calculation process,
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* which is about to produce a stream of frames and push them to the viewer widget,
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* specified by a LumieraDisplaySlot when starting this process.
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*
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* The Lifecycle of the referred playback process is managed automatically
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* through this handle (by ref count). Client code is supposed to use the
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* API on this handle to control the playback mode.
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*
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* @see handle.hpp
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* @see dummy-player-service.cpp implementation
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*/
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class Process
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: public lib::Handle<proc::play::ProcessImpl>
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{
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public:
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void play(bool); ///< play/pause toggle
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};
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//////////////////TODO: define some dummy negotiation about size and framerate....
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/** create a new playback process outputting to the given viewer/display */
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virtual Process start(LumieraDisplaySlot viewerHandle) =0;
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protected:
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virtual ~DummyPlayer();
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};
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} // namespace lumiera
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extern "C" {
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#endif /* =========================== CL Interface ===================== */
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#include "common/interface.h"
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LUMIERA_INTERFACE_DECLARE (lumieraorg_DummyPlayer, 0
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, LUMIERA_INTERFACE_SLOT (LumieraPlayProcess, startPlay, (LumieraDisplaySlot) )
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, LUMIERA_INTERFACE_SLOT (void, togglePlay,(LumieraPlayProcess, bool))
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, LUMIERA_INTERFACE_SLOT (void, terminate, (LumieraPlayProcess) )
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);
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#ifdef __cplusplus
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}
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#endif
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#endif
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