110 lines
4.2 KiB
C++
110 lines
4.2 KiB
C++
/*************************************************************************/
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/* audio_driver_xaudio2.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef AUDIO_DRIVER_XAUDIO2_H
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#define 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 "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(nullptr, FALSE, FALSE, nullptr)) {}
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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 = nullptr;
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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 = 0;
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unsigned int mix_rate = 0;
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SpeakerMode speaker_mode = SpeakerMode::SPEAKER_MODE_STEREO;
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int channels = 0;
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bool active = false;
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bool thread_exited = false;
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mutable bool exit_thread = false;
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bool pcm_open = false;
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WAVEFORMATEX wave_format = { 0 };
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Microsoft::WRL::ComPtr<IXAudio2> xaudio;
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int current_buffer = 0;
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IXAudio2MasteringVoice *mastering_voice = nullptr;
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XAUDIO2_BUFFER xaudio_buffer[AUDIO_BUFFERS];
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IXAudio2SourceVoice *source_voice = nullptr;
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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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