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// Copyright 2017 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "AudioCommon/CubebStream.h"
#include <cubeb/cubeb.h>
#include "AudioCommon/CubebUtils.h"
#include "Common/CommonTypes.h"
#include "Common/Logging/Log.h"
#include "Core/Config/MainSettings.h"
#include "Core/System.h"
#ifdef _WIN32
#include <Objbase.h>
#endif
// ~10 ms - needs to be at least 240 for surround
constexpr u32 BUFFER_SAMPLES = 512;
long CubebStream::DataCallback(cubeb_stream* stream, void* user_data, const void* /*input_buffer*/,
void* output_buffer, long num_frames)
{
const auto* const self = static_cast<CubebStream*>(user_data);
if (self->m_stereo)
self->m_mixer->Mix(static_cast<short*>(output_buffer), num_frames);
else
self->m_mixer->MixSurround(static_cast<float*>(output_buffer), num_frames);
return num_frames;
}
void CubebStream::StateCallback(cubeb_stream* stream, void* user_data, cubeb_state state)
{
}
long CubebStream::WiimoteDataCallback(cubeb_stream* stream, void* user_data,
const void* /*input_buffer*/, void* output_buffer,
long num_frames)
{
const auto* data = static_cast<const WiimoteStreamData*>(user_data);
data->self->m_mixer->MixWiimoteSpeaker(data->wiimote_index, static_cast<short*>(output_buffer),
num_frames);
return num_frames;
}
void CubebStream::WiimoteStateCallback(cubeb_stream* stream, void* user_data, cubeb_state state)
{
}
CubebStream::CubebStream()
#ifdef _WIN32
: m_work_queue("Cubeb Worker")
{
m_work_queue.PushBlocking([this] {
const auto result = CoInitializeEx(nullptr, COINIT_MULTITHREADED | COINIT_DISABLE_OLE1DDE);
m_coinit_success = result == S_OK;
m_should_couninit = result == S_OK || result == S_FALSE;
});
}
#else
= default;
#endif
bool CubebStream::Init()
{
bool return_value = false;
#ifdef _WIN32
if (!m_coinit_success)
return false;
m_work_queue.PushBlocking([this, &return_value] {
#endif
m_ctx = CubebUtils::GetContext();
if (m_ctx)
{
m_stereo = !Config::ShouldUseDPL2Decoder();
cubeb_stream_params params{};
params.rate = m_mixer->GetSampleRate();
if (m_stereo)
{
params.channels = 2;
params.format = CUBEB_SAMPLE_S16NE;
params.layout = CUBEB_LAYOUT_STEREO;
}
else
{
params.channels = 6;
params.format = CUBEB_SAMPLE_FLOAT32NE;
params.layout = CUBEB_LAYOUT_3F2_LFE;
}
u32 minimum_latency = 0;
if (cubeb_get_min_latency(m_ctx.get(), ¶ms, &minimum_latency) != CUBEB_OK)
ERROR_LOG_FMT(AUDIO, "Error getting minimum latency");
INFO_LOG_FMT(AUDIO, "Minimum latency: {} frames", minimum_latency);
return_value =
cubeb_stream_init(m_ctx.get(), &m_stream, "Dolphin Audio Output", nullptr, nullptr,
nullptr, ¶ms, std::max(BUFFER_SAMPLES, minimum_latency),
DataCallback, StateCallback, this) == CUBEB_OK;
// Create per-wiimote streams for audio routing (Wii games only, when enabled)
if (return_value && Core::System::GetInstance().IsWii() &&
Config::Get(Config::MAIN_WIIMOTE_AUDIO_ROUTING_ENABLED))
{
static const char* const WIIMOTE_STREAM_NAMES[4] = {
"Dolphin Wiimote 1 Audio", "Dolphin Wiimote 2 Audio", "Dolphin Wiimote 3 Audio",
"Dolphin Wiimote 4 Audio"};
cubeb_stream_params wiimote_params{};
wiimote_params.rate = m_mixer->GetSampleRate();
wiimote_params.channels = 2;
wiimote_params.format = CUBEB_SAMPLE_S16NE;
wiimote_params.layout = CUBEB_LAYOUT_STEREO;
for (std::size_t i = 0; i < m_wiimote_streams.size(); ++i)
{
if (!Config::Get(Config::MAIN_WIIMOTE_AUDIO_OUTPUT_ENABLED[i]))
continue;
const std::string device_id_str =
Config::Get(Config::MAIN_WIIMOTE_AUDIO_OUTPUT_DEVICE[i]);
const cubeb_devid output_devid =
device_id_str.empty() ?
nullptr :
static_cast<cubeb_devid>(CubebUtils::GetOutputDeviceById(device_id_str));
u32 wiimote_min_latency = 0;
cubeb_get_min_latency(m_ctx.get(), &wiimote_params, &wiimote_min_latency);
m_wiimote_stream_data[i] = {this, i};
const int result = cubeb_stream_init(
m_ctx.get(), &m_wiimote_streams[i], WIIMOTE_STREAM_NAMES[i], nullptr, nullptr,
output_devid, &wiimote_params, std::max(BUFFER_SAMPLES, wiimote_min_latency),
WiimoteDataCallback, WiimoteStateCallback, &m_wiimote_stream_data[i]);
if (result != CUBEB_OK)
{
ERROR_LOG_FMT(AUDIO, "Failed to create Cubeb stream for Wiimote {} audio routing",
i + 1);
m_wiimote_streams[i] = nullptr;
}
}
}
}
#ifdef _WIN32
});
#endif
return return_value;
}
bool CubebStream::SetRunning(bool running)
{
bool return_value = false;
#ifdef _WIN32
if (!m_coinit_success)
return false;
m_work_queue.PushBlocking([this, running, &return_value] {
#endif
if (running)
{
return_value = cubeb_stream_start(m_stream) == CUBEB_OK;
for (auto& ws : m_wiimote_streams)
{
if (ws)
cubeb_stream_start(ws);
}
}
else
{
return_value = cubeb_stream_stop(m_stream) == CUBEB_OK;
for (auto& ws : m_wiimote_streams)
{
if (ws)
cubeb_stream_stop(ws);
}
}
#ifdef _WIN32
});
#endif
return return_value;
}
CubebStream::~CubebStream()
{
#ifdef _WIN32
m_work_queue.PushBlocking([this] {
#endif
cubeb_stream_stop(m_stream);
cubeb_stream_destroy(m_stream);
for (auto& ws : m_wiimote_streams)
{
if (ws)
{
cubeb_stream_stop(ws);
cubeb_stream_destroy(ws);
ws = nullptr;
}
}
#ifdef _WIN32
if (m_should_couninit)
{
m_should_couninit = false;
CoUninitialize();
}
m_coinit_success = false;
});
#endif
m_ctx.reset();
}
void CubebStream::SetVolume(int volume)
{
#ifdef _WIN32
if (!m_coinit_success)
return;
m_work_queue.PushBlocking([this, volume] {
#endif
cubeb_stream_set_volume(m_stream, volume / 100.0f);
#ifdef _WIN32
});
#endif
}
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