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lmms/include/Lv2UridCache.h
2023-01-05 17:58:49 -05:00

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1.9 KiB
C++

/*
* Lv2UridCache.h - Lv2UridCache definition
*
* Copyright (c) 2020-2020 Johannes Lorenz <jlsf2013$users.sourceforge.net, $=@>
*
* This file is part of LMMS - https://lmms.io
*
* 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 (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#ifndef LMMS_LV2_URID_CACHE_H
#define LMMS_LV2_URID_CACHE_H
#include "lmmsconfig.h"
#ifdef LMMS_HAVE_LV2
#include <cstdint>
namespace lmms
{
//! Cached URIDs for fast access (for use in real-time code)
class Lv2UridCache
{
public:
enum class Id //!< ID for m_uridCache array
{
// keep it alphabetically (except "size" at the end)
atom_Float,
atom_Int,
bufsz_minBlockLength,
bufsz_maxBlockLength,
bufsz_nominalBlockLength,
bufsz_sequenceSize,
midi_MidiEvent,
param_sampleRate,
// exception to alphabetic ordering - keep at the end:
size
};
template<typename T>
struct IdForType;
//! Return URID for a cache ID
uint32_t operator[](Id id) const;
Lv2UridCache(class UridMap& mapper);
private:
uint32_t m_cache[static_cast<int>(Id::size)];
};
template<> struct Lv2UridCache::IdForType<float> { static constexpr auto value = Id::atom_Float; };
template<> struct Lv2UridCache::IdForType<std::int32_t> { static constexpr auto value = Id::atom_Int; };
} // namespace lmms
#endif // LMMS_HAVE_LV2
#endif // LMMS_LV2_URID_CACHE_H