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audout: Implement IAudioOut interface with AudioCore.

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This commit is contained in:
bunnei 2018-07-26 22:35:23 -04:00
parent 2a742229ee
commit f1c519f2cb
2 changed files with 115 additions and 94 deletions
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197
src/core/hle/service/audio/audout_u.cpp
View file

@ -5,8 +5,7 @@
#include <array>
#include <vector>
#include "common/logging/log.h"
#include "core/core_timing.h"
#include "core/core_timing_util.h"
#include "core/core.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/hle_ipc.h"
@ -14,17 +13,22 @@
namespace Service::Audio {
/// Switch sample rate frequency
constexpr u32 sample_rate{48000};
/// TODO(st4rk): dynamic number of channels, as I think Switch has support
/// to more audio channels (probably when Docked I guess)
constexpr u32 audio_channels{2};
/// TODO(st4rk): find a proper value for the audio_ticks
constexpr u64 audio_ticks{static_cast<u64>(CoreTiming::BASE_CLOCK_RATE / 500)};
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() : ServiceFramework("IAudioOut"), audio_out_state(AudioState::Stopped) {
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"},
@ -32,66 +36,65 @@ public:
{3, &IAudioOut::AppendAudioOutBufferImpl, "AppendAudioOutBuffer"},
{4, &IAudioOut::RegisterBufferEvent, "RegisterBufferEvent"},
{5, &IAudioOut::GetReleasedAudioOutBufferImpl, "GetReleasedAudioOutBuffer"},
{6, nullptr, "ContainsAudioOutBuffer"},
{6, &IAudioOut::ContainsAudioOutBuffer, "ContainsAudioOutBuffer"},
{7, &IAudioOut::AppendAudioOutBufferImpl, "AppendAudioOutBufferAuto"},
{8, &IAudioOut::GetReleasedAudioOutBufferImpl, "GetReleasedAudioOutBufferAuto"},
{9, nullptr, "GetAudioOutBufferCount"},
{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::OneShot, "IAudioOutBufferReleasedEvent");
buffer_event = Kernel::Event::Create(Kernel::ResetType::Sticky, "IAudioOutBufferReleased");
// Register event callback to update the Audio Buffer
audio_event = CoreTiming::RegisterEvent(
"IAudioOut::UpdateAudioBuffersCallback", [this](u64 userdata, int cycles_late) {
UpdateAudioBuffersCallback();
CoreTiming::ScheduleEvent(audio_ticks - cycles_late, audio_event);
});
// Start the audio event
CoreTiming::ScheduleEvent(audio_ticks, audio_event);
}
~IAudioOut() {
CoreTiming::UnscheduleEvent(audio_event, 0);
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>(audio_out_state));
rb.Push(static_cast<u32>(stream->IsPlaying() ? AudioState::Started : AudioState::Stopped));
}
void StartAudioOut(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_Audio, "(STUBBED) called");
LOG_DEBUG(Service_Audio, "called");
// Start audio
audio_out_state = AudioState::Started;
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_WARNING(Service_Audio, "(STUBBED) called");
LOG_DEBUG(Service_Audio, "called");
// Stop audio
audio_out_state = AudioState::Stopped;
queue_keys.clear();
audio_core.StopStream(stream);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void RegisterBufferEvent(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_Audio, "(STUBBED) called");
LOG_DEBUG(Service_Audio, "called");
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(RESULT_SUCCESS);
@ -99,101 +102,107 @@ private:
}
void AppendAudioOutBufferImpl(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_Audio, "(STUBBED) called");
LOG_DEBUG(Service_Audio, "(STUBBED) called {}", ctx.Description());
IPC::RequestParser rp{ctx};
const u64 key{rp.Pop<u64>()};
queue_keys.insert(queue_keys.begin(), key);
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_WARNING(Service_Audio, "(STUBBED) called");
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)};
// TODO(st4rk): This is how libtransistor currently implements the
// GetReleasedAudioOutBuffer, it should return the key (a VAddr) to the app and this address
// is used to know which buffer should be filled with data and send again to the service
// through AppendAudioOutBuffer. Check if this is the proper way to do it.
u64 key{0};
if (queue_keys.size()) {
key = queue_keys.back();
queue_keys.pop_back();
}
ctx.WriteBuffer(&key, sizeof(u64));
std::vector<u64> tags{released_buffers};
tags.resize(max_count);
ctx.WriteBuffer(tags);
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
// TODO(st4rk): This might be the total of released buffers, needs to be verified on
// hardware
rb.Push<u32>(static_cast<u32>(queue_keys.size()));
rb.Push<u32>(static_cast<u32>(released_buffers.size()));
}
void UpdateAudioBuffersCallback() {
if (audio_out_state != AudioState::Started) {
return;
}
if (queue_keys.empty()) {
return;
}
buffer_event->Signal();
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));
}
enum class AudioState : u32 {
Started,
Stopped,
};
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()));
}
/// This is used to trigger the audio event callback that is going to read the samples from the
/// audio_buffer list and enqueue the samples using the sink (audio_core).
CoreTiming::EventType* audio_event;
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;
/// (st4rk): This is just a temporary workaround for the future implementation. Libtransistor
/// uses the key as an address in the App, so we need to return when the
/// GetReleasedAudioOutBuffer_1 is called, otherwise we'll run in problems, because
/// libtransistor uses the key returned as an pointer.
std::vector<u64> queue_keys;
AudioState audio_out_state;
};
void AudOutU::ListAudioOutsImpl(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_Audio, "(STUBBED) called");
LOG_DEBUG(Service_Audio, "called");
IPC::RequestParser rp{ctx};
constexpr std::array<char, 15> audio_interface{{"AudioInterface"}};
ctx.WriteBuffer(audio_interface);
ctx.WriteBuffer(DefaultDevice);
IPC::ResponseBuilder rb = rp.MakeBuilder(3, 0, 0);
rb.Push(RESULT_SUCCESS);
// TODO(st4rk): We're currently returning only one audio interface (stringlist size). However,
// it's highly possible to have more than one interface (despite that libtransistor requires
// only one).
rb.Push<u32>(1);
rb.Push<u32>(1); // Amount of audio devices
}
void AudOutU::OpenAudioOutImpl(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_Audio, "(STUBBED) called");
LOG_DEBUG(Service_Audio, "called");
if (!audio_out_interface) {
audio_out_interface = std::make_shared<IAudioOut>();
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>(sample_rate);
rb.Push<u32>(audio_channels);
rb.Push<u32>(DefaultSampleRate);
rb.Push<u32>(params.channel_count);
rb.Push<u32>(static_cast<u32>(PcmFormat::Int16));
rb.Push<u32>(0); // This field is unknown
rb.Push<u32>(static_cast<u32>(AudioState::Stopped));
rb.PushIpcInterface<Audio::IAudioOut>(audio_out_interface);
}

12
src/core/hle/service/audio/audout_u.h
View file

@ -12,6 +12,18 @@ class HLERequestContext;
namespace Service::Audio {
struct AudoutParams {
s32_le sample_rate;
u16_le channel_count;
INSERT_PADDING_BYTES(2);
};
static_assert(sizeof(AudoutParams) == 0x8, "AudoutParams is an invalid size");
enum class AudioState : u32 {
Started,
Stopped,
};
class IAudioOut;
class AudOutU final : public ServiceFramework<AudOutU> {