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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <array>
#include <vector>
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/hle_ipc.h"
#include "core/hle/service/audio/audout_u.h"
namespace Service::Audio {
namespace ErrCodes {
enum {
ErrorUnknown = 2,
BufferCountExceeded = 8,
};
}
constexpr std::array<char, 10> DefaultDevice{{"DeviceOut"}};
constexpr int DefaultSampleRate{48000};
class IAudioOut final : public ServiceFramework<IAudioOut> {
public:
IAudioOut(AudoutParams audio_params)
: ServiceFramework("IAudioOut"), audio_params(audio_params),
audio_core(Core::System::GetInstance().AudioCore()) {
static const FunctionInfo functions[] = {
{0, &IAudioOut::GetAudioOutState, "GetAudioOutState"},
{1, &IAudioOut::StartAudioOut, "StartAudioOut"},
{2, &IAudioOut::StopAudioOut, "StopAudioOut"},
{3, &IAudioOut::AppendAudioOutBufferImpl, "AppendAudioOutBuffer"},
{4, &IAudioOut::RegisterBufferEvent, "RegisterBufferEvent"},
{5, &IAudioOut::GetReleasedAudioOutBufferImpl, "GetReleasedAudioOutBuffer"},
{6, &IAudioOut::ContainsAudioOutBuffer, "ContainsAudioOutBuffer"},
{7, &IAudioOut::AppendAudioOutBufferImpl, "AppendAudioOutBufferAuto"},
{8, &IAudioOut::GetReleasedAudioOutBufferImpl, "GetReleasedAudioOutBufferAuto"},
{9, &IAudioOut::GetAudioOutBufferCount, "GetAudioOutBufferCount"},
{10, nullptr, "GetAudioOutPlayedSampleCount"},
{11, nullptr, "FlushAudioOutBuffers"},
};
RegisterHandlers(functions);
// This is the event handle used to check if the audio buffer was released
buffer_event = Kernel::Event::Create(Kernel::ResetType::Sticky, "IAudioOutBufferReleased");
stream = audio_core.OpenStream(audio_params.sample_rate, audio_params.channel_count,
[=]() { buffer_event->Signal(); });
}
private:
struct AudioBuffer {
u64_le next;
u64_le buffer;
u64_le buffer_capacity;
u64_le buffer_size;
u64_le offset;
};
static_assert(sizeof(AudioBuffer) == 0x28, "AudioBuffer is an invalid size");
void GetAudioOutState(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called");
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push(static_cast<u32>(stream->IsPlaying() ? AudioState::Started : AudioState::Stopped));
}
void StartAudioOut(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called");
if (stream->IsPlaying()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultCode(ErrorModule::Audio, ErrCodes::ErrorUnknown));
return;
}
audio_core.StartStream(stream);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void StopAudioOut(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called");
audio_core.StopStream(stream);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void RegisterBufferEvent(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called");
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(RESULT_SUCCESS);
rb.PushCopyObjects(buffer_event);
}
void AppendAudioOutBufferImpl(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "(STUBBED) called {}", ctx.Description());
IPC::RequestParser rp{ctx};
const auto& input_buffer{ctx.ReadBuffer()};
ASSERT_MSG(input_buffer.size() == sizeof(AudioBuffer),
"AudioBuffer input is an invalid size!");
AudioBuffer audio_buffer{};
std::memcpy(&audio_buffer, input_buffer.data(), sizeof(AudioBuffer));
const u64 tag{rp.Pop<u64>()};
std::vector<u8> data(audio_buffer.buffer_size);
Memory::ReadBlock(audio_buffer.buffer, data.data(), data.size());
if (!audio_core.QueueBuffer(stream, tag, std::move(data))) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultCode(ErrorModule::Audio, ErrCodes::BufferCountExceeded));
}
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void GetReleasedAudioOutBufferImpl(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called {}", ctx.Description());
IPC::RequestParser rp{ctx};
const u64 max_count{ctx.GetWriteBufferSize() / sizeof(u64)};
const auto released_buffers{audio_core.GetTagsAndReleaseBuffers(stream, max_count)};
std::vector<u64> tags{released_buffers};
tags.resize(max_count);
ctx.WriteBuffer(tags);
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(static_cast<u32>(released_buffers.size()));
}
void ContainsAudioOutBuffer(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called");
IPC::RequestParser rp{ctx};
const u64 tag{rp.Pop<u64>()};
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push(stream->ContainsBuffer(tag));
}
void GetAudioOutBufferCount(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called");
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push(static_cast<u32>(stream->GetQueueSize()));
}
AudioCore::AudioOut& audio_core;
AudioCore::StreamPtr stream;
AudoutParams audio_params{};
/// This is the evend handle used to check if the audio buffer was released
Kernel::SharedPtr<Kernel::Event> buffer_event;
};
void AudOutU::ListAudioOutsImpl(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called");
IPC::RequestParser rp{ctx};
ctx.WriteBuffer(DefaultDevice);
IPC::ResponseBuilder rb = rp.MakeBuilder(3, 0, 0);
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(1); // Amount of audio devices
}
void AudOutU::OpenAudioOutImpl(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_Audio, "called");
ctx.WriteBuffer(DefaultDevice);
IPC::RequestParser rp{ctx};
auto params{rp.PopRaw<AudoutParams>()};
if (params.channel_count <= 2) {
// Mono does not exist for audout
params.channel_count = 2;
} else {
params.channel_count = 6;
}
if (!params.sample_rate) {
params.sample_rate = DefaultSampleRate;
}
// TODO(bunnei): Support more than one IAudioOut interface. When we add this, ListAudioOutsImpl
// will likely need to be updated as well.
ASSERT_MSG(!audio_out_interface, "Unimplemented");
audio_out_interface = std::make_shared<IAudioOut>(std::move(params));
IPC::ResponseBuilder rb{ctx, 6, 0, 1};
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(DefaultSampleRate);
rb.Push<u32>(params.channel_count);
rb.Push<u32>(static_cast<u32>(PcmFormat::Int16));
rb.Push<u32>(static_cast<u32>(AudioState::Stopped));
rb.PushIpcInterface<Audio::IAudioOut>(audio_out_interface);
}
AudOutU::AudOutU() : ServiceFramework("audout:u") {
static const FunctionInfo functions[] = {{0, &AudOutU::ListAudioOutsImpl, "ListAudioOuts"},
{1, &AudOutU::OpenAudioOutImpl, "OpenAudioOut"},
{2, &AudOutU::ListAudioOutsImpl, "ListAudioOutsAuto"},
{3, &AudOutU::OpenAudioOutImpl, "OpenAudioOutAuto"}};
RegisterHandlers(functions);
}
} // namespace Service::Audio
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