71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
// SPDX-License-Identifier: BSD-2-Clause
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// This code is part of the sfizz library and is licensed under a BSD 2-clause
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// license. You should have receive a LICENSE.md file along with the code.
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// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
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#pragma once
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#include "Config.h"
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#include "Region.h"
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#include "Voice.h"
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#include "SwapAndPop.h"
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#include "absl/algorithm/container.h"
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namespace sfz
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{
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class PolyphonyGroup {
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public:
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PolyphonyGroup();
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/**
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* @brief Set the polyphony limit for this polyphony group.
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*
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* @param limit
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*/
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void setPolyphonyLimit(unsigned limit) noexcept;
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/**
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* @brief Register an active voice in this polyphony group.
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*
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* @param voice
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*/
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void registerVoice(Voice* voice) noexcept;
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/**
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* @brief Remove a voice from this polyphony group.
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* If the voice was not registered before, this has no effect.
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*
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* @param voice
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*/
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void removeVoice(const Voice* voice) noexcept;
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/**
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* @brief Remove all the voices from this polyphony group.
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*/
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void removeAllVoices() noexcept;
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/**
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* @brief Get the polyphony limit for this group
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*
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* @return unsigned
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*/
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unsigned getPolyphonyLimit() const noexcept { return polyphonyLimit; }
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/**
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* @brief Returns the number of playing (unreleased) voices
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*/
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unsigned numPlayingVoices() const noexcept;
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/**
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* @brief Get the active voices
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*
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* @return const std::vector<Voice*>&
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*/
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const std::vector<Voice*>& getActiveVoices() const noexcept { return voices; }
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/**
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* @brief Get the active voices
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*
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* @return std::vector<Voice*>&
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*/
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std::vector<Voice*>& getActiveVoices() noexcept { return voices; }
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private:
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unsigned polyphonyLimit { config::maxVoices };
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std::vector<Voice*> voices;
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};
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}
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