/*************************************************************************/ /* audio_driver_xaudio2.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #ifndef AUDIO_DRIVER_XAUDIO2_H #define AUDIO_DRIVER_XAUDIO2_H #include "core/os/mutex.h" #include "core/os/thread.h" #include "servers/audio_server.h" #include <mmsystem.h> #include <windows.h> #include <wrl/client.h> #include <xaudio2.h> class AudioDriverXAudio2 : public AudioDriver { enum { AUDIO_BUFFERS = 2 }; struct XAudio2DriverVoiceCallback : public IXAudio2VoiceCallback { HANDLE buffer_end_event; XAudio2DriverVoiceCallback() : buffer_end_event(CreateEvent(nullptr, FALSE, FALSE, nullptr)) {} void STDMETHODCALLTYPE OnBufferEnd(void *pBufferContext) { SetEvent(buffer_end_event); } //Unused methods are stubs void STDMETHODCALLTYPE OnStreamEnd() {} void STDMETHODCALLTYPE OnVoiceProcessingPassEnd() {} void STDMETHODCALLTYPE OnVoiceProcessingPassStart(UINT32 SamplesRequired) {} void STDMETHODCALLTYPE OnBufferStart(void *pBufferContext) {} void STDMETHODCALLTYPE OnLoopEnd(void *pBufferContext) {} void STDMETHODCALLTYPE OnVoiceError(void *pBufferContext, HRESULT Error) {} }; Thread thread; Mutex mutex; int32_t *samples_in = nullptr; int16_t *samples_out[AUDIO_BUFFERS]; static void thread_func(void *p_udata); int buffer_size = 0; unsigned int mix_rate = 0; SpeakerMode speaker_mode = SpeakerMode::SPEAKER_MODE_STEREO; int channels = 0; bool active = false; bool thread_exited = false; mutable bool exit_thread = false; bool pcm_open = false; WAVEFORMATEX wave_format = { 0 }; Microsoft::WRL::ComPtr<IXAudio2> xaudio; int current_buffer = 0; IXAudio2MasteringVoice *mastering_voice = nullptr; XAUDIO2_BUFFER xaudio_buffer[AUDIO_BUFFERS]; IXAudio2SourceVoice *source_voice = nullptr; XAudio2DriverVoiceCallback voice_callback; public: const char *get_name() const; virtual Error init(); virtual void start(); virtual int get_mix_rate() const; virtual SpeakerMode get_speaker_mode() const; virtual float get_latency(); virtual void lock(); virtual void unlock(); virtual void finish(); AudioDriverXAudio2(); ~AudioDriverXAudio2() {} }; #endif