5 files changed, 63 insertions, 12 deletions

diff --git a/src/audio_core/sink/cubeb_sink.cpp b/src/audio_core/sink/cubeb_sink.cpp
index 04d98a865..bbb598bc5 100644
--- a/src/audio_core/sink/cubeb_sink.cpp
+++ b/src/audio_core/sink/cubeb_sink.cpp
@@ -364,7 +364,7 @@ bool IsCubebSuitable() {
     }
 #endif
 
-    // Test min latency
+    // Get min latency
     cubeb_stream_params params{};
     params.rate = TargetSampleRate;
     params.channels = 2;
@@ -380,11 +380,6 @@ bool IsCubebSuitable() {
     }
     latency = std::max(latency, TargetSampleCount * 2);
 
-    if (latency > TargetSampleCount * 3) {
-        LOG_ERROR(Audio_Sink, "Cubeb latency is too high, it is not suitable.");
-        return false;
-    }
-
     // Test opening a device with standard parameters
     cubeb_devid output_device{0};
     cubeb_devid input_device{0};
diff --git a/src/audio_core/sink/sink_details.cpp b/src/audio_core/sink/sink_details.cpp
index 6bec8ee7c..7c9a4e3ac 100644
--- a/src/audio_core/sink/sink_details.cpp
+++ b/src/audio_core/sink/sink_details.cpp
@@ -83,8 +83,8 @@ const SinkDetails& GetOutputSinkDetails(Settings::AudioEngine sink_id) {
                 break;
             }
         }
-        LOG_ERROR(Service_Audio, "Auto-selecting the {} backend",
-                  Settings::CanonicalizeEnum(iter->id));
+        LOG_INFO(Service_Audio, "Auto-selecting the {} backend",
+                 Settings::CanonicalizeEnum(iter->id));
     } else {
         if (iter != std::end(sink_details) && !iter->is_suitable()) {
             LOG_ERROR(Service_Audio, "Selected backend {} is not suitable, falling back to null",
diff --git a/src/core/hle/service/audio/hwopus.cpp b/src/core/hle/service/audio/hwopus.cpp
index fa77007f3..4a8276ed1 100644
--- a/src/core/hle/service/audio/hwopus.cpp
+++ b/src/core/hle/service/audio/hwopus.cpp
@@ -174,7 +174,7 @@ public:
             {6, &IHardwareOpusDecoderManager::DecodeInterleaved, "DecodeInterleavedWithPerfAndResetOld"},
             {7, nullptr, "DecodeInterleavedForMultiStreamWithPerfAndResetOld"},
             {8, &IHardwareOpusDecoderManager::DecodeInterleaved, "DecodeInterleaved"},
-            {9, nullptr, "DecodeInterleavedForMultiStream"},
+            {9, &IHardwareOpusDecoderManager::DecodeInterleavedForMultiStream, "DecodeInterleavedForMultiStream"},
         };
         // clang-format on
 
@@ -206,6 +206,16 @@ private:
         decoder_state.DecodeInterleaved(ctx, OpusDecoderState::PerfTime::Enabled, extra_behavior);
     }
 
+    void DecodeInterleavedForMultiStream(HLERequestContext& ctx) {
+        LOG_DEBUG(Audio, "called");
+
+        IPC::RequestParser rp{ctx};
+        const auto extra_behavior = rp.Pop<bool>() ? OpusDecoderState::ExtraBehavior::ResetContext
+                                                   : OpusDecoderState::ExtraBehavior::None;
+
+        decoder_state.DecodeInterleaved(ctx, OpusDecoderState::PerfTime::Enabled, extra_behavior);
+    }
+
     OpusDecoderState decoder_state;
 };
 
@@ -354,6 +364,40 @@ void HwOpus::OpenHardwareOpusDecoderEx(HLERequestContext& ctx) {
         system, OpusDecoderState{std::move(decoder), sample_rate, channel_count});
 }
 
+void HwOpus::OpenHardwareOpusDecoderForMultiStreamEx(HLERequestContext& ctx) {
+    OpusMultiStreamParametersEx params;
+    std::memcpy(&params, ctx.ReadBuffer().data(), ctx.GetReadBufferSize());
+
+    const auto& sample_rate = params.sample_rate;
+    const auto& channel_count = params.channel_count;
+
+    LOG_INFO(
+        Audio,
+        "called with sample_rate={}, channel_count={}, number_streams={}, number_stereo_streams={}",
+        sample_rate, channel_count, params.number_streams, params.number_stereo_streams);
+
+    ASSERT_MSG(sample_rate == 48000 || sample_rate == 24000 || sample_rate == 16000 ||
+                   sample_rate == 12000 || sample_rate == 8000,
+               "Invalid sample rate");
+
+    int error = 0;
+    OpusDecoderPtr decoder{opus_multistream_decoder_create(
+        sample_rate, static_cast<int>(channel_count), params.number_streams,
+        params.number_stereo_streams, params.channel_mappings.data(), &error)};
+    if (error != OPUS_OK || decoder == nullptr) {
+        LOG_ERROR(Audio, "Failed to create Opus decoder (error={}).", error);
+        IPC::ResponseBuilder rb{ctx, 2};
+        // TODO(ogniK): Use correct error code
+        rb.Push(ResultUnknown);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<IHardwareOpusDecoderManager>(
+        system, OpusDecoderState{std::move(decoder), sample_rate, channel_count});
+}
+
 HwOpus::HwOpus(Core::System& system_) : ServiceFramework{system_, "hwopus"} {
     static const FunctionInfo functions[] = {
         {0, &HwOpus::OpenHardwareOpusDecoder, "OpenHardwareOpusDecoder"},
@@ -362,7 +406,8 @@ HwOpus::HwOpus(Core::System& system_) : ServiceFramework{system_, "hwopus"} {
         {3, nullptr, "GetWorkBufferSizeForMultiStream"},
         {4, &HwOpus::OpenHardwareOpusDecoderEx, "OpenHardwareOpusDecoderEx"},
         {5, &HwOpus::GetWorkBufferSizeEx, "GetWorkBufferSizeEx"},
-        {6, nullptr, "OpenHardwareOpusDecoderForMultiStreamEx"},
+        {6, &HwOpus::OpenHardwareOpusDecoderForMultiStreamEx,
+         "OpenHardwareOpusDecoderForMultiStreamEx"},
         {7, &HwOpus::GetWorkBufferSizeForMultiStreamEx, "GetWorkBufferSizeForMultiStreamEx"},
         {8, nullptr, "GetWorkBufferSizeExEx"},
         {9, nullptr, "GetWorkBufferSizeForMultiStreamExEx"},
diff --git a/src/core/hle/service/audio/hwopus.h b/src/core/hle/service/audio/hwopus.h
index ece65c02c..91d9998ac 100644
--- a/src/core/hle/service/audio/hwopus.h
+++ b/src/core/hle/service/audio/hwopus.h
@@ -18,8 +18,10 @@ struct OpusMultiStreamParametersEx {
     u32 number_stereo_streams;
     u32 use_large_frame_size;
     u32 padding;
-    std::array<u32, 64> channel_mappings;
+    std::array<u8, 0x100> channel_mappings;
 };
+static_assert(sizeof(OpusMultiStreamParametersEx) == 0x118,
+              "OpusMultiStreamParametersEx has incorrect size");
 
 class HwOpus final : public ServiceFramework<HwOpus> {
 public:
@@ -29,6 +31,7 @@ public:
 private:
     void OpenHardwareOpusDecoder(HLERequestContext& ctx);
     void OpenHardwareOpusDecoderEx(HLERequestContext& ctx);
+    void OpenHardwareOpusDecoderForMultiStreamEx(HLERequestContext& ctx);
     void GetWorkBufferSize(HLERequestContext& ctx);
     void GetWorkBufferSizeEx(HLERequestContext& ctx);
     void GetWorkBufferSizeForMultiStreamEx(HLERequestContext& ctx);
diff --git a/src/video_core/buffer_cache/buffer_cache.h b/src/video_core/buffer_cache/buffer_cache.h
index f0f450edb..8be7bd594 100644
--- a/src/video_core/buffer_cache/buffer_cache.h
+++ b/src/video_core/buffer_cache/buffer_cache.h
@@ -289,8 +289,11 @@ std::pair<typename P::Buffer*, u32> BufferCache<P>::ObtainBuffer(GPUVAddr gpu_ad
         MarkWrittenBuffer(buffer_id, *cpu_addr, size);
         break;
     case ObtainBufferOperation::DiscardWrite: {
-        IntervalType interval{*cpu_addr, size};
+        VAddr cpu_addr_start = Common::AlignDown(*cpu_addr, 64);
+        VAddr cpu_addr_end = Common::AlignUp(*cpu_addr + size, 64);
+        IntervalType interval{cpu_addr_start, cpu_addr_end};
         ClearDownload(interval);
+        common_ranges.subtract(interval);
         break;
     }
     default:
@@ -1159,6 +1162,11 @@ void BufferCache<P>::UpdateDrawIndirect() {
             .size = static_cast<u32>(size),
             .buffer_id = FindBuffer(*cpu_addr, static_cast<u32>(size)),
         };
+        VAddr cpu_addr_start = Common::AlignDown(*cpu_addr, 64);
+        VAddr cpu_addr_end = Common::AlignUp(*cpu_addr + size, 64);
+        IntervalType interval{cpu_addr_start, cpu_addr_end};
+        ClearDownload(interval);
+        common_ranges.subtract(interval);
     };
     if (current_draw_indirect->include_count) {
         update(current_draw_indirect->count_start_address, sizeof(u32),