early-access version 1831

README.md

@@ -1,7 +1,7 @@
 yuzu emulator early access
 =============
 
-This is the source code for early-access 1830.
+This is the source code for early-access 1831.
 
 ## Legal Notice
 

externals/libusb/CMakeLists.txt

@@ -1,4 +1,4 @@
-if (MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux"))
+if (MINGW OR (${CMAKE_SYSTEM_NAME} MATCHES "Linux") OR APPLE)
     set(LIBUSB_FOUND ON CACHE BOOL "libusb is present" FORCE)
     set(LIBUSB_VERSION "1.0.24" CACHE STRING "libusb version string" FORCE)
 

src/audio_core/audio_renderer.cpp

@@ -69,7 +69,7 @@ namespace {
 } // namespace
 
 namespace AudioCore {
-constexpr s32 NUM_BUFFERS = 2;
+constexpr s32 NUM_BUFFERS = 4;
 
 AudioRenderer::AudioRenderer(Core::Timing::CoreTiming& core_timing_, Core::Memory::Memory& memory_,
                              AudioCommon::AudioRendererParameter params,
@@ -129,7 +129,6 @@ Stream::State AudioRenderer::GetStreamState() const {
 
 ResultCode AudioRenderer::UpdateAudioRenderer(const std::vector<u8>& input_params,
                                               std::vector<u8>& output_params) {
-    {
     std::scoped_lock lock{mutex};
     InfoUpdater info_updater{input_params, output_params, behavior_info};
 
@@ -166,8 +165,8 @@ ResultCode AudioRenderer::UpdateAudioRenderer(const std::vector<u8>& input_param
         }
     }
 
-        const auto mix_result = info_updater.UpdateMixes(
+    const auto mix_result = info_updater.UpdateMixes(mix_context, worker_params.mix_buffer_count,
-            mix_context, worker_params.mix_buffer_count, splitter_context, effect_context);
+                                                     splitter_context, effect_context);
 
     if (mix_result.IsError()) {
         LOG_ERROR(Audio, "Failed to update mix parameters");
@@ -210,7 +209,6 @@ ResultCode AudioRenderer::UpdateAudioRenderer(const std::vector<u8>& input_param
         LOG_ERROR(Audio, "Audio buffers were not consumed!");
         return AudioCommon::Audren::ERR_INVALID_PARAMETERS;
     }
-    }
     return ResultSuccess;
 }
 
@@ -234,10 +232,8 @@ void AudioRenderer::QueueMixedBuffer(Buffer::Tag tag) {
     command_generator.PostCommand();
     // Base sample size
     std::size_t BUFFER_SIZE{worker_params.sample_count};
-    // Samples
+    // Samples, making sure to clear
-    std::vector<s16> buffer(BUFFER_SIZE * stream->GetNumChannels());
+    std::vector<s16> buffer(BUFFER_SIZE * stream->GetNumChannels(), 0);
-    // Make sure to clear our samples
-    std::memset(buffer.data(), 0, buffer.size() * sizeof(s16));
 
     if (sink_context.InUse()) {
         const auto stream_channel_count = stream->GetNumChannels();

src/audio_core/command_generator.cpp

@@ -795,7 +795,7 @@ void CommandGenerator::UpdateI3dl2Reverb(I3dl2ReverbParams& info, I3dl2ReverbSta
         state.lowpass_1 = 0.0f;
     } else {
         const auto a = 1.0f - hf_gain;
-        const auto b = 2.0f * (1.0f - hf_gain * CosD(256.0f * info.hf_reference /
+        const auto b = 2.0f * (2.0f - hf_gain * CosD(256.0f * info.hf_reference /
                                                      static_cast<f32>(info.sample_rate)));
         const auto c = std::sqrt(b * b - 4.0f * a * a);
 
@@ -843,7 +843,7 @@ void CommandGenerator::UpdateI3dl2Reverb(I3dl2ReverbParams& info, I3dl2ReverbSta
     }
 
     const auto max_early_delay = state.early_delay_line.GetMaxDelay();
-    const auto reflection_time = 1000.0f * (0.0098f * info.reverb_delay + 0.02f);
+    const auto reflection_time = 1000.0f * (0.9998f * info.reverb_delay + 0.02f);
     for (std::size_t tap = 0; tap < AudioCommon::I3DL2REVERB_TAPS; tap++) {
         const auto length = AudioCommon::CalculateDelaySamples(
             sample_rate, 1000.0f * info.reflection_delay + reflection_time * EARLY_TAP_TIMES[tap]);
@@ -1004,7 +1004,8 @@ void CommandGenerator::GenerateFinalMixCommand() {
 }
 
 s32 CommandGenerator::DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_state,
-                                  s32 sample_count, s32 channel, std::size_t mix_offset) {
+                                  s32 sample_start_offset, s32 sample_end_offset, s32 sample_count,
+                                  s32 channel, std::size_t mix_offset) {
     const auto& in_params = voice_info.GetInParams();
     const auto& wave_buffer = in_params.wave_buffer[dsp_state.wave_buffer_index];
     if (wave_buffer.buffer_address == 0) {
@@ -1013,14 +1014,12 @@ s32 CommandGenerator::DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_s
     if (wave_buffer.buffer_size == 0) {
         return 0;
     }
-    if (wave_buffer.end_sample_offset < wave_buffer.start_sample_offset) {
+    if (sample_end_offset < sample_start_offset) {
         return 0;
     }
-    const auto samples_remaining =
+    const auto samples_remaining = (sample_end_offset - sample_start_offset) - dsp_state.offset;
-        (wave_buffer.end_sample_offset - wave_buffer.start_sample_offset) - dsp_state.offset;
     const auto start_offset =
-        ((wave_buffer.start_sample_offset + dsp_state.offset) * in_params.channel_count) *
+        ((dsp_state.offset + sample_start_offset) * in_params.channel_count) * sizeof(s16);
-        sizeof(s16);
     const auto buffer_pos = wave_buffer.buffer_address + start_offset;
     const auto samples_processed = std::min(sample_count, samples_remaining);
 
@@ -1044,8 +1043,8 @@ s32 CommandGenerator::DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_s
 }
 
 s32 CommandGenerator::DecodeAdpcm(ServerVoiceInfo& voice_info, VoiceState& dsp_state,
-                                  s32 sample_count, [[maybe_unused]] s32 channel,
+                                  s32 sample_start_offset, s32 sample_end_offset, s32 sample_count,
-                                  std::size_t mix_offset) {
+                                  [[maybe_unused]] s32 channel, std::size_t mix_offset) {
     const auto& in_params = voice_info.GetInParams();
     const auto& wave_buffer = in_params.wave_buffer[dsp_state.wave_buffer_index];
     if (wave_buffer.buffer_address == 0) {
@@ -1054,7 +1053,7 @@ s32 CommandGenerator::DecodeAdpcm(ServerVoiceInfo& voice_info, VoiceState& dsp_s
     if (wave_buffer.buffer_size == 0) {
         return 0;
     }
-    if (wave_buffer.end_sample_offset < wave_buffer.start_sample_offset) {
+    if (sample_end_offset < sample_start_offset) {
         return 0;
     }
 
@@ -1079,10 +1078,9 @@ s32 CommandGenerator::DecodeAdpcm(ServerVoiceInfo& voice_info, VoiceState& dsp_s
     s32 coef1 = coeffs[idx * 2];
     s32 coef2 = coeffs[idx * 2 + 1];
 
-    const auto samples_remaining =
+    const auto samples_remaining = (sample_end_offset - sample_start_offset) - dsp_state.offset;
-        (wave_buffer.end_sample_offset - wave_buffer.start_sample_offset) - dsp_state.offset;
     const auto samples_processed = std::min(sample_count, samples_remaining);
-    const auto sample_pos = wave_buffer.start_sample_offset + dsp_state.offset;
+    const auto sample_pos = dsp_state.offset + sample_start_offset;
 
     const auto samples_remaining_in_frame = sample_pos % SAMPLES_PER_FRAME;
     auto position_in_frame = ((sample_pos / SAMPLES_PER_FRAME) * NIBBLES_PER_SAMPLE) +
@@ -1210,9 +1208,8 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* o
     }
 
     std::size_t temp_mix_offset{};
-    bool is_buffer_completed{false};
     auto samples_remaining = sample_count;
-    while (samples_remaining > 0 && !is_buffer_completed) {
+    while (samples_remaining > 0) {
         const auto samples_to_output = std::min(samples_remaining, min_required_samples);
         const auto samples_to_read = (samples_to_output * resample_rate + dsp_state.fraction) >> 15;
 
@@ -1229,7 +1226,6 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* o
             const auto& wave_buffer = in_params.wave_buffer[dsp_state.wave_buffer_index];
             // No more data can be read
             if (!dsp_state.is_wave_buffer_valid[dsp_state.wave_buffer_index]) {
-                is_buffer_completed = true;
                 break;
             }
 
@@ -1238,15 +1234,29 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* o
                 // TODO(ogniK): ADPCM loop context
             }
 
+            s32 samples_offset_start;
+            s32 samples_offset_end;
+            if (dsp_state.loop_count > 0 ||
+                (wave_buffer.loop_start_sample != 0 && wave_buffer.loop_end_sample != 0 &&
+                 wave_buffer.loop_start_sample <= wave_buffer.loop_end_sample)) {
+                samples_offset_start = wave_buffer.loop_start_sample;
+                samples_offset_end = wave_buffer.loop_end_sample;
+            } else {
+                samples_offset_start = wave_buffer.start_sample_offset;
+                samples_offset_end = wave_buffer.end_sample_offset;
+            }
+
             s32 samples_decoded{0};
             switch (in_params.sample_format) {
             case SampleFormat::Pcm16:
-                samples_decoded = DecodePcm16(voice_info, dsp_state, samples_to_read - samples_read,
+                samples_decoded =
-                                              channel, temp_mix_offset);
+                    DecodePcm16(voice_info, dsp_state, samples_offset_start, samples_offset_end,
+                                samples_to_read - samples_read, channel, temp_mix_offset);
                 break;
             case SampleFormat::Adpcm:
-                samples_decoded = DecodeAdpcm(voice_info, dsp_state, samples_to_read - samples_read,
+                samples_decoded =
-                                              channel, temp_mix_offset);
+                    DecodeAdpcm(voice_info, dsp_state, samples_offset_start, samples_offset_end,
+                                samples_to_read - samples_read, channel, temp_mix_offset);
                 break;
             default:
                 UNREACHABLE_MSG("Unimplemented sample format={}", in_params.sample_format);
@@ -1257,15 +1267,19 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* o
             dsp_state.offset += samples_decoded;
             dsp_state.played_sample_count += samples_decoded;
 
-            if (dsp_state.offset >=
+            if (dsp_state.offset >= (samples_offset_end - samples_offset_start) ||
-                    (wave_buffer.end_sample_offset - wave_buffer.start_sample_offset) ||
                 samples_decoded == 0) {
                 // Reset our sample offset
                 dsp_state.offset = 0;
                 if (wave_buffer.is_looping) {
-                    if (samples_decoded == 0) {
+                    dsp_state.loop_count++;
+                    if (wave_buffer.loop_count > 0 &&
+                        (dsp_state.loop_count > wave_buffer.loop_count || samples_decoded == 0)) {
                         // End of our buffer
-                        is_buffer_completed = true;
+                        voice_info.SetWaveBufferCompleted(dsp_state, wave_buffer);
+                    }
+
+                    if (samples_decoded == 0) {
                         break;
                     }
 
@@ -1273,15 +1287,8 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* o
                         dsp_state.played_sample_count = 0;
                     }
                 } else {
-
                     // Update our wave buffer states
-                    dsp_state.is_wave_buffer_valid[dsp_state.wave_buffer_index] = false;
+                    voice_info.SetWaveBufferCompleted(dsp_state, wave_buffer);
-                    dsp_state.wave_buffer_consumed++;
-                    dsp_state.wave_buffer_index =
-                        (dsp_state.wave_buffer_index + 1) % AudioCommon::MAX_WAVE_BUFFERS;
-                    if (wave_buffer.end_of_stream) {
-                        dsp_state.played_sample_count = 0;
-                    }
                 }
             }
         }

src/audio_core/command_generator.h

@@ -86,10 +86,10 @@ private:
                                std::vector<u8>& work_buffer);
     void UpdateI3dl2Reverb(I3dl2ReverbParams& info, I3dl2ReverbState& state, bool should_clear);
     // DSP Code
-    s32 DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_state, s32 sample_count,
+    s32 DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_state, s32 sample_start_offset,
-                    s32 channel, std::size_t mix_offset);
+                    s32 sample_end_offset, s32 sample_count, s32 channel, std::size_t mix_offset);
-    s32 DecodeAdpcm(ServerVoiceInfo& voice_info, VoiceState& dsp_state, s32 sample_count,
+    s32 DecodeAdpcm(ServerVoiceInfo& voice_info, VoiceState& dsp_state, s32 sample_start_offset,
-                    s32 channel, std::size_t mix_offset);
+                    s32 sample_end_offset, s32 sample_count, s32 channel, std::size_t mix_offset);
     void DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* output, VoiceState& dsp_state,
                                s32 channel, s32 target_sample_rate, s32 sample_count, s32 node_id);
 

src/audio_core/info_updater.cpp

@@ -189,9 +189,6 @@ bool InfoUpdater::UpdateVoices(VoiceContext& voice_context,
         if (voice_in_params.is_new) {
             // Default our values for our voice
             voice_info.Initialize();
-            if (channel_count == 0 || channel_count > AudioCommon::MAX_CHANNEL_COUNT) {
-                continue;
-            }
 
             // Zero out our voice states
             for (std::size_t channel = 0; channel < channel_count; channel++) {

src/audio_core/voice_context.cpp

@@ -66,7 +66,7 @@ void ServerVoiceInfo::Initialize() {
     in_params.last_volume = 0.0f;
     in_params.biquad_filter.fill({});
     in_params.wave_buffer_count = 0;
-    in_params.wave_bufffer_head = 0;
+    in_params.wave_buffer_head = 0;
     in_params.mix_id = AudioCommon::NO_MIX;
     in_params.splitter_info_id = AudioCommon::NO_SPLITTER;
     in_params.additional_params_address = 0;
@@ -75,7 +75,7 @@ void ServerVoiceInfo::Initialize() {
     out_params.played_sample_count = 0;
     out_params.wave_buffer_consumed = 0;
     in_params.voice_drop_flag = false;
-    in_params.buffer_mapped = false;
+    in_params.buffer_mapped = true;
     in_params.wave_buffer_flush_request_count = 0;
     in_params.was_biquad_filter_enabled.fill(false);
 
@@ -126,7 +126,7 @@ void ServerVoiceInfo::UpdateParameters(const VoiceInfo::InParams& voice_in,
     in_params.volume = voice_in.volume;
     in_params.biquad_filter = voice_in.biquad_filter;
     in_params.wave_buffer_count = voice_in.wave_buffer_count;
-    in_params.wave_bufffer_head = voice_in.wave_buffer_head;
+    in_params.wave_buffer_head = voice_in.wave_buffer_head;
     if (behavior_info.IsFlushVoiceWaveBuffersSupported()) {
         const auto in_request_count = in_params.wave_buffer_flush_request_count;
         const auto voice_request_count = voice_in.wave_buffer_flush_request_count;
@@ -185,14 +185,16 @@ void ServerVoiceInfo::UpdateWaveBuffers(
             wave_buffer.buffer_size = 0;
             wave_buffer.context_address = 0;
             wave_buffer.context_size = 0;
+            wave_buffer.loop_start_sample = 0;
+            wave_buffer.loop_end_sample = 0;
             wave_buffer.sent_to_dsp = true;
         }
 
         // Mark all our wave buffers as invalid
         for (std::size_t channel = 0; channel < static_cast<std::size_t>(in_params.channel_count);
              channel++) {
-            for (auto& is_valid : voice_states[channel]->is_wave_buffer_valid) {
+            for (std::size_t i = 0; i < AudioCommon::MAX_WAVE_BUFFERS; ++i) {
-                is_valid = false;
+                voice_states[channel]->is_wave_buffer_valid[i] = false;
             }
         }
     }
@@ -211,7 +213,7 @@ void ServerVoiceInfo::UpdateWaveBuffer(ServerWaveBuffer& out_wavebuffer,
                                        const WaveBuffer& in_wave_buffer, SampleFormat sample_format,
                                        bool is_buffer_valid,
                                        [[maybe_unused]] BehaviorInfo& behavior_info) {
-    if (!is_buffer_valid && out_wavebuffer.sent_to_dsp) {
+    if (!is_buffer_valid && out_wavebuffer.sent_to_dsp && out_wavebuffer.buffer_address != 0) {
         out_wavebuffer.buffer_address = 0;
         out_wavebuffer.buffer_size = 0;
     }
@@ -239,6 +241,8 @@ void ServerVoiceInfo::UpdateWaveBuffer(ServerWaveBuffer& out_wavebuffer,
         out_wavebuffer.buffer_size = in_wave_buffer.buffer_size;
         out_wavebuffer.context_address = in_wave_buffer.context_address;
         out_wavebuffer.context_size = in_wave_buffer.context_size;
+        out_wavebuffer.loop_start_sample = in_wave_buffer.loop_start_sample;
+        out_wavebuffer.loop_end_sample = in_wave_buffer.loop_end_sample;
         in_params.buffer_mapped =
             in_wave_buffer.buffer_address != 0 && in_wave_buffer.buffer_size != 0;
         // TODO(ogniK): Pool mapper attachment
@@ -249,19 +253,16 @@ void ServerVoiceInfo::UpdateWaveBuffer(ServerWaveBuffer& out_wavebuffer,
 void ServerVoiceInfo::WriteOutStatus(
     VoiceInfo::OutParams& voice_out, VoiceInfo::InParams& voice_in,
     std::array<VoiceState*, AudioCommon::MAX_CHANNEL_COUNT>& voice_states) {
-    if (voice_in.is_new) {
+    if (voice_in.is_new || in_params.is_new) {
         in_params.is_new = true;
         voice_out.wave_buffer_consumed = 0;
         voice_out.played_sample_count = 0;
         voice_out.voice_dropped = false;
-    } else if (!in_params.is_new) {
-        voice_out.wave_buffer_consumed = voice_states[0]->wave_buffer_consumed;
-        voice_out.played_sample_count = voice_states[0]->played_sample_count;
-        voice_out.voice_dropped = in_params.voice_drop_flag;
     } else {
-        voice_out.wave_buffer_consumed = 0;
+        const auto& state = voice_states[0];
-        voice_out.played_sample_count = 0;
+        voice_out.wave_buffer_consumed = state->wave_buffer_consumed;
-        voice_out.voice_dropped = false;
+        voice_out.played_sample_count = state->played_sample_count;
+        voice_out.voice_dropped = state->voice_dropped;
     }
 }
 
@@ -283,7 +284,8 @@ ServerVoiceInfo::OutParams& ServerVoiceInfo::GetOutParams() {
 
 bool ServerVoiceInfo::ShouldSkip() const {
     // TODO(ogniK): Handle unmapped wave buffers or parameters
-    return !in_params.in_use || (in_params.wave_buffer_count == 0) || in_params.voice_drop_flag;
+    return !in_params.in_use || in_params.wave_buffer_count == 0 || !in_params.buffer_mapped ||
+           in_params.voice_drop_flag;
 }
 
 bool ServerVoiceInfo::UpdateForCommandGeneration(VoiceContext& voice_context) {
@@ -381,7 +383,7 @@ bool ServerVoiceInfo::UpdateParametersForCommandGeneration(
 void ServerVoiceInfo::FlushWaveBuffers(
     u8 flush_count, std::array<VoiceState*, AudioCommon::MAX_CHANNEL_COUNT>& dsp_voice_states,
     s32 channel_count) {
-    auto wave_head = in_params.wave_bufffer_head;
+    auto wave_head = in_params.wave_buffer_head;
 
     for (u8 i = 0; i < flush_count; i++) {
         in_params.wave_buffer[wave_head].sent_to_dsp = true;
@@ -401,6 +403,17 @@ bool ServerVoiceInfo::HasValidWaveBuffer(const VoiceState* state) const {
     return std::find(valid_wb.begin(), valid_wb.end(), true) != valid_wb.end();
 }
 
+void ServerVoiceInfo::SetWaveBufferCompleted(VoiceState& dsp_state,
+                                             const ServerWaveBuffer& wave_buffer) {
+    dsp_state.is_wave_buffer_valid[dsp_state.wave_buffer_index] = false;
+    dsp_state.wave_buffer_consumed++;
+    dsp_state.wave_buffer_index = (dsp_state.wave_buffer_index + 1) % AudioCommon::MAX_WAVE_BUFFERS;
+    dsp_state.loop_count = 0;
+    if (wave_buffer.end_of_stream) {
+        dsp_state.played_sample_count = 0;
+    }
+}
+
 VoiceContext::VoiceContext(std::size_t voice_count_) : voice_count{voice_count_} {
     for (std::size_t i = 0; i < voice_count; i++) {
         voice_channel_resources.emplace_back(static_cast<s32>(i));

src/audio_core/voice_context.h

@@ -60,10 +60,12 @@ struct WaveBuffer {
     u8 is_looping{};
     u8 end_of_stream{};
     u8 sent_to_server{};
-    INSERT_PADDING_BYTES(5);
+    INSERT_PADDING_BYTES(1);
+    s32 loop_count{};
     u64 context_address{};
     u64 context_size{};
-    INSERT_PADDING_BYTES(8);
+    u32 loop_start_sample{};
+    u32 loop_end_sample{};
 };
 static_assert(sizeof(WaveBuffer) == 0x38, "WaveBuffer is an invalid size");
 
@@ -76,6 +78,9 @@ struct ServerWaveBuffer {
     bool end_of_stream{};
     VAddr context_address{};
     std::size_t context_size{};
+    s32 loop_count{};
+    u32 loop_start_sample{};
+    u32 loop_end_sample{};
     bool sent_to_dsp{true};
 };
 
@@ -108,6 +113,7 @@ struct VoiceState {
     u32 external_context_size;
     bool is_external_context_used;
     bool voice_dropped;
+    s32 loop_count;
 };
 
 class VoiceChannelResource {
@@ -206,7 +212,7 @@ public:
         float last_volume{};
         std::array<BiquadFilterParameter, AudioCommon::MAX_BIQUAD_FILTERS> biquad_filter{};
         s32 wave_buffer_count{};
-        s16 wave_bufffer_head{};
+        s16 wave_buffer_head{};
         INSERT_PADDING_BYTES(2);
         BehaviorFlags behavior_flags{};
         VAddr additional_params_address{};
@@ -252,6 +258,7 @@ public:
     void FlushWaveBuffers(u8 flush_count,
                           std::array<VoiceState*, AudioCommon::MAX_CHANNEL_COUNT>& dsp_voice_states,
                           s32 channel_count);
+    void SetWaveBufferCompleted(VoiceState& dsp_state, const ServerWaveBuffer& wave_buffer);
 
 private:
     std::vector<s16> stored_samples;

src/input_common/gcadapter/gc_adapter.cpp

@@ -103,9 +103,8 @@ void Adapter::AdapterInputThread(std::stop_token stop_token) {
     AdapterPayload adapter_payload{};
 
     adapter_scan_thread = {};
-    adapter_input_thread_running = true;
 
-    while (adapter_input_thread_running && !stop_token.stop_requested()) {
+    while (!stop_token.stop_requested()) {
         libusb_interrupt_transfer(usb_adapter_handle->get(), input_endpoint, adapter_payload.data(),
                                   static_cast<s32>(adapter_payload.size()), &payload_size, 16);
         if (IsPayloadCorrect(adapter_payload, payload_size)) {
@@ -129,7 +128,7 @@ bool Adapter::IsPayloadCorrect(const AdapterPayload& adapter_payload, s32 payloa
                   adapter_payload[0]);
         if (input_error_counter++ > 20) {
             LOG_ERROR(Input, "GC adapter timeout, Is the adapter connected?");
-            adapter_input_thread_running = false;
+            adapter_input_thread.request_stop();
             restart_scan_thread = true;
         }
         return false;
@@ -303,14 +302,15 @@ void Adapter::AdapterScanThread(std::stop_token stop_token) {
     usb_adapter_handle = nullptr;
     pads = {};
     while (!stop_token.stop_requested() && !Setup()) {
-        std::this_thread::sleep_for(std::chrono::seconds(1));
+        std::this_thread::sleep_for(std::chrono::seconds(2));
     }
 }
 
 bool Adapter::Setup() {
-    constexpr u16 vid = 0x057e; // Nintendo
+    constexpr u16 nintendo_vid = 0x057e;
-    constexpr u16 pid = 0x0337; // GC Adapter
+    constexpr u16 gc_adapter_pid = 0x0337;
-    usb_adapter_handle = std::make_unique<LibUSBDeviceHandle>(libusb_ctx->get(), vid, pid);
+    usb_adapter_handle =
+        std::make_unique<LibUSBDeviceHandle>(libusb_ctx->get(), nintendo_vid, gc_adapter_pid);
     if (!usb_adapter_handle->get()) {
         return false;
     }

src/input_common/gcadapter/gc_adapter.h

@@ -156,6 +156,5 @@ private:
     bool configuring{false};
     bool rumble_enabled{true};
     bool vibration_changed{true};
-    bool adapter_input_thread_running{false};
 };
 } // namespace GCAdapter