391 lines
11 KiB
C++
391 lines
11 KiB
C++
/*************************************************************************/
|
|
/* audio_driver_wasapi.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* http://www.godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2017 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. */
|
|
/*************************************************************************/
|
|
#ifdef WASAPI_ENABLED
|
|
|
|
#include "audio_driver_wasapi.h"
|
|
|
|
#include "os/os.h"
|
|
#include "project_settings.h"
|
|
|
|
const CLSID CLSID_MMDeviceEnumerator = __uuidof(MMDeviceEnumerator);
|
|
const IID IID_IMMDeviceEnumerator = __uuidof(IMMDeviceEnumerator);
|
|
const IID IID_IAudioClient = __uuidof(IAudioClient);
|
|
const IID IID_IAudioRenderClient = __uuidof(IAudioRenderClient);
|
|
|
|
Error AudioDriverWASAPI::init_device(bool reinit) {
|
|
|
|
WAVEFORMATEX *pwfex;
|
|
IMMDeviceEnumerator *enumerator = NULL;
|
|
IMMDevice *device = NULL;
|
|
|
|
CoInitialize(NULL);
|
|
|
|
HRESULT hr = CoCreateInstance(CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL, IID_IMMDeviceEnumerator, (void **)&enumerator);
|
|
ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN);
|
|
|
|
hr = enumerator->GetDefaultAudioEndpoint(eRender, eConsole, &device);
|
|
if (reinit) {
|
|
// In case we're trying to re-initialize the device prevent throwing this error on the console,
|
|
// otherwise if there is currently no devie available this will spam the console.
|
|
if (hr != S_OK) {
|
|
return ERR_CANT_OPEN;
|
|
}
|
|
} else {
|
|
ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN);
|
|
}
|
|
|
|
hr = device->Activate(IID_IAudioClient, CLSCTX_ALL, NULL, (void **)&audio_client);
|
|
if (reinit) {
|
|
if (hr != S_OK) {
|
|
return ERR_CANT_OPEN;
|
|
}
|
|
} else {
|
|
ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN);
|
|
}
|
|
|
|
hr = audio_client->GetMixFormat(&pwfex);
|
|
ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN);
|
|
|
|
// Since we're using WASAPI Shared Mode we can't control any of these, we just tag along
|
|
channels = pwfex->nChannels;
|
|
mix_rate = pwfex->nSamplesPerSec;
|
|
format_tag = pwfex->wFormatTag;
|
|
bits_per_sample = pwfex->wBitsPerSample;
|
|
|
|
switch (channels) {
|
|
case 2: // Stereo
|
|
case 4: // Surround 3.1
|
|
case 6: // Surround 5.1
|
|
case 8: // Surround 7.1
|
|
break;
|
|
|
|
default:
|
|
ERR_PRINTS("WASAPI: Unsupported number of channels: " + itos(channels));
|
|
ERR_FAIL_V(ERR_CANT_OPEN);
|
|
break;
|
|
}
|
|
|
|
if (format_tag == WAVE_FORMAT_EXTENSIBLE) {
|
|
WAVEFORMATEXTENSIBLE *wfex = (WAVEFORMATEXTENSIBLE *)pwfex;
|
|
|
|
if (wfex->SubFormat == KSDATAFORMAT_SUBTYPE_PCM) {
|
|
format_tag = WAVE_FORMAT_PCM;
|
|
} else if (wfex->SubFormat == KSDATAFORMAT_SUBTYPE_IEEE_FLOAT) {
|
|
format_tag = WAVE_FORMAT_IEEE_FLOAT;
|
|
} else {
|
|
ERR_PRINT("WASAPI: Format not supported");
|
|
ERR_FAIL_V(ERR_CANT_OPEN);
|
|
}
|
|
} else {
|
|
if (format_tag != WAVE_FORMAT_PCM && format_tag != WAVE_FORMAT_IEEE_FLOAT) {
|
|
ERR_PRINT("WASAPI: Format not supported");
|
|
ERR_FAIL_V(ERR_CANT_OPEN);
|
|
}
|
|
}
|
|
|
|
hr = audio_client->Initialize(AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_EVENTCALLBACK, 0, 0, pwfex, NULL);
|
|
ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN);
|
|
|
|
event = CreateEvent(NULL, FALSE, FALSE, NULL);
|
|
ERR_FAIL_COND_V(event == NULL, ERR_CANT_OPEN);
|
|
|
|
hr = audio_client->SetEventHandle(event);
|
|
ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN);
|
|
|
|
hr = audio_client->GetService(IID_IAudioRenderClient, (void **)&render_client);
|
|
ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN);
|
|
|
|
UINT32 max_frames;
|
|
hr = audio_client->GetBufferSize(&max_frames);
|
|
ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN);
|
|
|
|
// Due to WASAPI Shared Mode we have no control of the buffer size
|
|
buffer_frames = max_frames;
|
|
|
|
// Sample rate is independent of channels (ref: https://stackoverflow.com/questions/11048825/audio-sample-frequency-rely-on-channels)
|
|
buffer_size = buffer_frames * channels;
|
|
samples_in.resize(buffer_size);
|
|
|
|
if (OS::get_singleton()->is_stdout_verbose()) {
|
|
print_line("WASAPI: detected " + itos(channels) + " channels");
|
|
print_line("WASAPI: audio buffer frames: " + itos(buffer_frames) + " calculated latency: " + itos(buffer_frames * 1000 / mix_rate) + "ms");
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error AudioDriverWASAPI::finish_device() {
|
|
|
|
if (audio_client) {
|
|
if (active) {
|
|
audio_client->Stop();
|
|
active = false;
|
|
}
|
|
}
|
|
|
|
if (render_client) {
|
|
render_client->Release();
|
|
render_client = NULL;
|
|
}
|
|
|
|
if (audio_client) {
|
|
audio_client->Release();
|
|
audio_client = NULL;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error AudioDriverWASAPI::init() {
|
|
|
|
Error err = init_device();
|
|
if (err != OK) {
|
|
ERR_PRINT("WASAPI: init_device error");
|
|
}
|
|
|
|
active = false;
|
|
exit_thread = false;
|
|
thread_exited = false;
|
|
|
|
mutex = Mutex::create(true);
|
|
thread = Thread::create(thread_func, this);
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error AudioDriverWASAPI::reopen() {
|
|
Error err = finish_device();
|
|
if (err != OK) {
|
|
ERR_PRINT("WASAPI: finish_device error");
|
|
} else {
|
|
err = init_device();
|
|
if (err != OK) {
|
|
ERR_PRINT("WASAPI: init_device error");
|
|
} else {
|
|
start();
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
int AudioDriverWASAPI::get_mix_rate() const {
|
|
|
|
return mix_rate;
|
|
}
|
|
|
|
AudioDriver::SpeakerMode AudioDriverWASAPI::get_speaker_mode() const {
|
|
|
|
return get_speaker_mode_by_total_channels(channels);
|
|
}
|
|
|
|
void AudioDriverWASAPI::thread_func(void *p_udata) {
|
|
|
|
AudioDriverWASAPI *ad = (AudioDriverWASAPI *)p_udata;
|
|
|
|
while (!ad->exit_thread) {
|
|
if (ad->active) {
|
|
ad->lock();
|
|
|
|
ad->audio_server_process(ad->buffer_frames, ad->samples_in.ptrw());
|
|
|
|
ad->unlock();
|
|
} else {
|
|
for (unsigned int i = 0; i < ad->buffer_size; i++) {
|
|
ad->samples_in[i] = 0;
|
|
}
|
|
}
|
|
|
|
unsigned int left_frames = ad->buffer_frames;
|
|
unsigned int buffer_idx = 0;
|
|
while (left_frames > 0 && ad->audio_client) {
|
|
WaitForSingleObject(ad->event, 1000);
|
|
|
|
UINT32 cur_frames;
|
|
HRESULT hr = ad->audio_client->GetCurrentPadding(&cur_frames);
|
|
if (hr == S_OK) {
|
|
// Check how much frames are available on the WASAPI buffer
|
|
UINT32 avail_frames = ad->buffer_frames - cur_frames;
|
|
UINT32 write_frames = avail_frames > left_frames ? left_frames : avail_frames;
|
|
|
|
BYTE *buffer = NULL;
|
|
hr = ad->render_client->GetBuffer(write_frames, &buffer);
|
|
if (hr == S_OK) {
|
|
// We're using WASAPI Shared Mode so we must convert the buffer
|
|
|
|
if (ad->format_tag == WAVE_FORMAT_PCM) {
|
|
switch (ad->bits_per_sample) {
|
|
case 8:
|
|
for (unsigned int i = 0; i < write_frames * ad->channels; i++) {
|
|
((int8_t *)buffer)[i] = ad->samples_in[buffer_idx++] >> 24;
|
|
}
|
|
break;
|
|
|
|
case 16:
|
|
for (unsigned int i = 0; i < write_frames * ad->channels; i++) {
|
|
((int16_t *)buffer)[i] = ad->samples_in[buffer_idx++] >> 16;
|
|
}
|
|
break;
|
|
|
|
case 24:
|
|
for (unsigned int i = 0; i < write_frames * ad->channels; i++) {
|
|
int32_t sample = ad->samples_in[buffer_idx++];
|
|
((int8_t *)buffer)[i * 3 + 2] = sample >> 24;
|
|
((int8_t *)buffer)[i * 3 + 1] = sample >> 16;
|
|
((int8_t *)buffer)[i * 3 + 0] = sample >> 8;
|
|
}
|
|
break;
|
|
|
|
case 32:
|
|
for (unsigned int i = 0; i < write_frames * ad->channels; i++) {
|
|
((int32_t *)buffer)[i] = ad->samples_in[buffer_idx++];
|
|
}
|
|
break;
|
|
}
|
|
} else if (ad->format_tag == WAVE_FORMAT_IEEE_FLOAT) {
|
|
for (unsigned int i = 0; i < write_frames * ad->channels; i++) {
|
|
((float *)buffer)[i] = (ad->samples_in[buffer_idx++] >> 16) / 32768.f;
|
|
}
|
|
} else {
|
|
ERR_PRINT("WASAPI: Unknown format tag");
|
|
ad->exit_thread = true;
|
|
}
|
|
|
|
hr = ad->render_client->ReleaseBuffer(write_frames, 0);
|
|
if (hr != S_OK) {
|
|
ERR_PRINT("WASAPI: Release buffer error");
|
|
}
|
|
|
|
left_frames -= write_frames;
|
|
} else if (hr == AUDCLNT_E_DEVICE_INVALIDATED) {
|
|
// Device is not valid anymore, reopen it
|
|
|
|
Error err = ad->finish_device();
|
|
if (err != OK) {
|
|
ERR_PRINT("WASAPI: finish_device error");
|
|
} else {
|
|
// We reopened the device and samples_in may have resized, so invalidate the current left_frames
|
|
left_frames = 0;
|
|
}
|
|
} else {
|
|
ERR_PRINT("WASAPI: Get buffer error");
|
|
ad->exit_thread = true;
|
|
}
|
|
} else if (hr == AUDCLNT_E_DEVICE_INVALIDATED) {
|
|
// Device is not valid anymore, reopen it
|
|
|
|
Error err = ad->finish_device();
|
|
if (err != OK) {
|
|
ERR_PRINT("WASAPI: finish_device error");
|
|
} else {
|
|
// We reopened the device and samples_in may have resized, so invalidate the current left_frames
|
|
left_frames = 0;
|
|
}
|
|
} else {
|
|
ERR_PRINT("WASAPI: GetCurrentPadding error");
|
|
}
|
|
}
|
|
|
|
if (!ad->audio_client) {
|
|
Error err = ad->init_device(true);
|
|
if (err == OK) {
|
|
ad->start();
|
|
}
|
|
}
|
|
}
|
|
|
|
ad->thread_exited = true;
|
|
}
|
|
|
|
void AudioDriverWASAPI::start() {
|
|
|
|
if (audio_client) {
|
|
HRESULT hr = audio_client->Start();
|
|
if (hr != S_OK) {
|
|
ERR_PRINT("WASAPI: Start failed");
|
|
} else {
|
|
active = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
void AudioDriverWASAPI::lock() {
|
|
|
|
if (mutex)
|
|
mutex->lock();
|
|
}
|
|
|
|
void AudioDriverWASAPI::unlock() {
|
|
|
|
if (mutex)
|
|
mutex->unlock();
|
|
}
|
|
|
|
void AudioDriverWASAPI::finish() {
|
|
|
|
if (thread) {
|
|
exit_thread = true;
|
|
Thread::wait_to_finish(thread);
|
|
|
|
memdelete(thread);
|
|
thread = NULL;
|
|
}
|
|
|
|
finish_device();
|
|
|
|
if (mutex) {
|
|
memdelete(mutex);
|
|
mutex = NULL;
|
|
}
|
|
}
|
|
|
|
AudioDriverWASAPI::AudioDriverWASAPI() {
|
|
|
|
audio_client = NULL;
|
|
render_client = NULL;
|
|
mutex = NULL;
|
|
thread = NULL;
|
|
|
|
format_tag = 0;
|
|
bits_per_sample = 0;
|
|
|
|
samples_in.clear();
|
|
|
|
buffer_size = 0;
|
|
channels = 0;
|
|
mix_rate = 0;
|
|
buffer_frames = 0;
|
|
|
|
thread_exited = false;
|
|
exit_thread = false;
|
|
active = false;
|
|
}
|
|
|
|
#endif
|