95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
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/*
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EngineConfig - access point to any kind of engine configuration parameters
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Copyright (C) Lumiera.org
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2013, 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
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the 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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#include "backend/engine/engine-config.h"
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#include "lib/time/timevalue.hpp"
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#include <boost/rational.hpp>
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using boost::rational;
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using lib::time::FrameRate;
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namespace backend{
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namespace engine {
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namespace { // Hard wired placeholder settings...
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const rational<uint> ONE_THIRD(1,3);
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const rational<uint> EIGHTY_PERCENT(8,10);
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const Duration DEFAULT_ENGINE_LATENCY = EIGHTY_PERCENT * Duration(1, FrameRate::PAL);
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}//(End)hard wired settings
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EngineConfig::~EngineConfig() { }
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/** storage for the Singleton accessor */
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lib::Singleton<EngineConfig> EngineConfig::get;
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/** build up a new engine configuration set,
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* based on reasonable default values
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*
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* @warning using hard wired values as of 1/2013
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*/
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EngineConfig::EngineConfig()
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{ }
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Duration
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EngineConfig::currentEngineLatency() const
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{
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return DEFAULT_ENGINE_LATENCY;
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}
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}} // namespace backend::engine
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namespace {
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using backend::engine::EngineConfig;
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// any C adapter functions go here...
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}
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extern "C" { /* ==== implementation C interface for engine configuration ======= */
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gavl_time_t
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lumiera_engine_get_latency ()
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{
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return _raw (EngineConfig::get().currentEngineLatency());
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}
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}//extern "C"
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