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2f66449092
Implement `LV2_OPTIONS__options` feature and some buf-size properties. The code currently assumes that the LMMS buffersize never changes, which is currently true in the LMMS code base.
71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
/*
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* Lv2UridCache.h - Lv2UridCache definition
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*
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* Copyright (c) 2020-2020 Johannes Lorenz <jlsf2013$users.sourceforge.net, $=@>
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*
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* This file is part of LMMS - https://lmms.io
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*
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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
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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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 GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef LV2URIDCACHE_H
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#define LV2URIDCACHE_H
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#include "lmmsconfig.h"
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#ifdef LMMS_HAVE_LV2
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#include <QtGlobal>
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#include <cstdint>
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//! Cached URIDs for fast access (for use in real-time code)
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class Lv2UridCache
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{
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public:
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enum class Id //!< ID for m_uridCache array
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{
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// keep it alphabetically (except "size" at the end)
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atom_Float,
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atom_Int,
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bufsz_minBlockLength,
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bufsz_maxBlockLength,
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bufsz_nominalBlockLength,
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bufsz_sequenceSize,
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midi_MidiEvent,
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param_sampleRate,
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// exception to alphabetic ordering - keep at the end:
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size
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};
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template<typename T>
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struct IdForType;
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//! Return URID for a cache ID
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uint32_t operator[](Id id) const;
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Lv2UridCache(class UridMap& mapper);
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private:
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uint32_t m_cache[static_cast<int>(Id::size)];
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};
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template<> struct Lv2UridCache::IdForType<float> { static constexpr auto value = Id::atom_Float; };
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template<> struct Lv2UridCache::IdForType<std::int32_t> { static constexpr auto value = Id::atom_Int; };
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#endif // LMMS_HAVE_LV2
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#endif // LV2URIDCACHE_H
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