mirror of https://github.com/AxioDL/amuse.git
111 lines
3.8 KiB
C++
111 lines
3.8 KiB
C++
#ifndef __AMUSE_SUBMIX_HPP__
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#define __AMUSE_SUBMIX_HPP__
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#include <memory>
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#include "SoundMacroState.hpp"
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#include "IBackendSubmix.hpp"
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#include "IBackendVoice.hpp"
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#include "EffectBase.hpp"
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#include "EffectChorus.hpp"
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#include "EffectDelay.hpp"
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#include "EffectReverb.hpp"
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#include <unordered_set>
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namespace amuse
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{
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class IBackendSubmix;
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class Sequencer;
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/** Intermediate mix of voices for applying auxiliary effects */
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class Submix
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{
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friend class Engine;
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friend class Voice;
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friend class Sequencer;
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Engine& m_root;
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Submix* m_submix = nullptr; /**< Parent submix of this submix (or NULL if mixing to main output) */
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std::unique_ptr<IBackendSubmix> m_backendSubmix; /**< Handle to client-implemented backend submix */
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std::vector<std::unique_ptr<EffectBaseTypeless>> m_effectStack; /**< Ordered list of effects to apply to submix */
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bool m_destroyed = false;
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void _destroy();
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public:
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Submix(Engine& engine, Submix* smx);
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~Submix()
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{
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#ifndef NDEBUG
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/* Ensure proper destruction procedure followed */
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assert(m_destroyed);
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#endif
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}
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/** Obtain pointer to Submix's parent Submix */
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Submix* getParentSubmix() {return m_submix;}
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/** Add new effect to effect stack and assume ownership */
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template <class T, class ...Args>
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T& makeEffect(Args... args)
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{
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switch (m_backendSubmix->getSampleFormat())
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{
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case SubmixFormat::Int16:
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{
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using ImpType = typename T::template ImpType<int16_t>;
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m_effectStack.emplace_back(new ImpType(args..., m_backendSubmix->getSampleRate()));
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return static_cast<ImpType&>(*m_effectStack.back());
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}
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case SubmixFormat::Int32:
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default:
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{
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using ImpType = typename T::template ImpType<int32_t>;
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m_effectStack.emplace_back(new ImpType(args..., m_backendSubmix->getSampleRate()));
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return static_cast<ImpType&>(*m_effectStack.back());
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}
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case SubmixFormat::Float:
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{
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using ImpType = typename T::template ImpType<float>;
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m_effectStack.emplace_back(new ImpType(args..., m_backendSubmix->getSampleRate()));
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return static_cast<ImpType&>(*m_effectStack.back());
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}
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}
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}
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/** Add new chorus effect to effect stack and assume ownership */
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EffectChorus& makeChorus(uint32_t baseDelay, uint32_t variation, uint32_t period);
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/** Add new delay effect to effect stack and assume ownership */
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EffectDelay& makeDelay(uint32_t initDelay, uint32_t initFeedback, uint32_t initOutput);
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/** Add new standard-quality reverb effect to effect stack and assume ownership */
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EffectReverbStd& makeReverbStd(float coloration, float mix, float time,
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float damping, float preDelay);
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/** Add new high-quality reverb effect to effect stack and assume ownership */
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EffectReverbHi& makeReverbHi(float coloration, float mix, float time,
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float damping, float preDelay, float crosstalk);
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/** Remove and deallocate all effects from effect stack */
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void clearEffects() {m_effectStack.clear();}
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/** Returns true when an effect callback is bound */
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bool canApplyEffect() const {return m_effectStack.size() != 0;}
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/** in/out transformation entry for audio effect */
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void applyEffect(int16_t* audio, size_t frameCount, const ChannelMap& chanMap) const;
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/** in/out transformation entry for audio effect */
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void applyEffect(int32_t* audio, size_t frameCount, const ChannelMap& chanMap) const;
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/** in/out transformation entry for audio effect */
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void applyEffect(float* audio, size_t frameCount, const ChannelMap& chanMap) const;
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/** advice effects of changing sample rate */
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void resetOutputSampleRate(double sampleRate);
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Engine& getEngine() {return m_root;}
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};
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}
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#endif // __AMUSE_SUBMIX_HPP__
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