random space

i'm going to love condensing these commits

src/audio_core/audio_renderer.cpp

@@ -2,7 +2,9 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <future>
 #include <limits>
+#include <mutex>
 #include <vector>
 
 #include "audio_core/audio_out.h"
@@ -315,9 +317,18 @@ void AudioRenderer::QueueMixedBuffer(Buffer::Tag tag) {
 }
 
 void AudioRenderer::ReleaseAndQueueBuffers() {
+    std::size_t thread_counter = 0;
     const auto released_buffers{audio_out->GetTagsAndReleaseBuffers(stream)};
+    queue_mixed_multithread.resize(released_buffers.size());
     for (const auto& tag : released_buffers) {
-        QueueMixedBuffer(tag);
+        queue_mixed_multithread[thread_counter] =
+            std::async(std::launch::async, [this, tag, voice_context = voice_context,
+                                            splitter_context = splitter_context,
+                                            mix_context = mix_context] { QueueMixedBuffer(tag); });
+        thread_counter++;
+    }
+    for (std::size_t thread = 0; thread < released_buffers.size(); thread++) {
+        queue_mixed_multithread[thread].wait();
     }
 }
 

src/audio_core/audio_renderer.h

@@ -5,7 +5,9 @@
 #pragma once
 
 #include <array>
+#include <future>
 #include <memory>
+#include <mutex>
 #include <vector>
 
 #include "audio_core/behavior_info.h"
@@ -68,6 +70,7 @@ private:
     Core::Memory::Memory& memory;
     CommandGenerator command_generator;
     std::size_t elapsed_frame_count{};
+    std::vector<std::future<void>> queue_mixed_multithread;
 };
 
 } // namespace AudioCore