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https://github.com/Relintai/pandemonium_engine_minimal.git
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83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
#ifndef AUDIO_DRIVER_XAUDIO2_H
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#define AUDIO_DRIVER_XAUDIO2_H
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/* audio_driver_xaudio2.h */
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#include "core/os/mutex.h"
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#include "core/os/thread.h"
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#include "core/os/safe_refcount.h"
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#include "servers/audio_server.h"
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#include <mmsystem.h>
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <wrl/client.h>
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#include <xaudio2.h>
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class AudioDriverXAudio2 : public AudioDriver {
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enum {
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AUDIO_BUFFERS = 2
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};
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struct XAudio2DriverVoiceCallback : public IXAudio2VoiceCallback {
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HANDLE buffer_end_event;
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XAudio2DriverVoiceCallback() :
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buffer_end_event(CreateEvent(NULL, FALSE, FALSE, NULL)) {}
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void STDMETHODCALLTYPE OnBufferEnd(void *pBufferContext) {
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SetEvent(buffer_end_event);
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}
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//Unused methods are stubs
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void STDMETHODCALLTYPE OnStreamEnd() {}
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void STDMETHODCALLTYPE OnVoiceProcessingPassEnd() {}
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void STDMETHODCALLTYPE OnVoiceProcessingPassStart(UINT32 SamplesRequired) {}
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void STDMETHODCALLTYPE OnBufferStart(void *pBufferContext) {}
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void STDMETHODCALLTYPE OnLoopEnd(void *pBufferContext) {}
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void STDMETHODCALLTYPE OnVoiceError(void *pBufferContext, HRESULT Error) {}
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};
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Thread thread;
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Mutex mutex;
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int32_t *samples_in;
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int16_t *samples_out[AUDIO_BUFFERS];
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static void thread_func(void *p_udata);
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int buffer_size;
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unsigned int mix_rate;
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SpeakerMode speaker_mode;
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int channels;
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SafeFlag active;
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SafeFlag exit_thread;
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bool pcm_open;
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WAVEFORMATEX wave_format;
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Microsoft::WRL::ComPtr<IXAudio2> xaudio;
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int current_buffer;
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IXAudio2MasteringVoice *mastering_voice;
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XAUDIO2_BUFFER xaudio_buffer[AUDIO_BUFFERS];
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IXAudio2SourceVoice *source_voice;
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XAudio2DriverVoiceCallback voice_callback;
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public:
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const char *get_name() const;
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virtual Error init();
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virtual void start();
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virtual int get_mix_rate() const;
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virtual SpeakerMode get_speaker_mode() const;
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virtual float get_latency();
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virtual void lock();
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virtual void unlock();
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virtual void finish();
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AudioDriverXAudio2();
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~AudioDriverXAudio2();
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};
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#endif
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