amuse/include/amuse/IBackendVoiceAllocator.hpp

51 lines
1.6 KiB
C++

#pragma once
#include <memory>
#include <functional>
#include <vector>
namespace amuse {
class IBackendVoice;
class IBackendSubmix;
class Voice;
class Submix;
class Engine;
/** Same enum as boo for describing speaker-configuration */
enum class AudioChannelSet { Stereo, Quad, Surround51, Surround71, Unknown = 0xff };
/** Handle to MIDI-reader, implementation opaque */
class IMIDIReader {
public:
virtual ~IMIDIReader() = default;
virtual void pumpReader(double dt) = 0;
};
/** Client-implemented voice allocator */
class IBackendVoiceAllocator {
public:
virtual ~IBackendVoiceAllocator() = default;
/** Amuse obtains a new voice from the platform this way */
virtual std::unique_ptr<IBackendVoice> allocateVoice(Voice& clientVox, double sampleRate, bool dynamicPitch) = 0;
/** Amuse obtains a new submix from the platform this way */
virtual std::unique_ptr<IBackendSubmix> allocateSubmix(Submix& clientSmx, bool mainOut, int busId) = 0;
/** Amuse obtains a list of all MIDI devices this way */
virtual std::vector<std::pair<std::string, std::string>> enumerateMIDIDevices() = 0;
/** Amuse obtains an interactive MIDI-in connection from the OS this way */
virtual std::unique_ptr<IMIDIReader> allocateMIDIReader(Engine& engine) = 0;
/** Amuse obtains speaker-configuration from the platform this way */
virtual AudioChannelSet getAvailableSet() = 0;
/** Set volume of main mix out */
virtual void setVolume(float vol) = 0;
/** Amuse registers for key callback events from the mixing engine this way */
virtual void setCallbackInterface(Engine* engine) = 0;
};
} // namespace amuse