From 5da70f719703084482933e103e561cc98163f370 Mon Sep 17 00:00:00 2001
From: Kelebek1 <eeeedddccc@hotmail.co.uk>
Date: Tue, 23 May 2023 14:45:54 +0100
Subject: Remove memory allocations in some hot paths

---
 src/core/hle/service/audio/audren_u.cpp | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

(limited to 'src/core/hle/service/audio/audren_u.cpp')

diff --git a/src/core/hle/service/audio/audren_u.cpp b/src/core/hle/service/audio/audren_u.cpp
index 7086d4750..12845c23a 100644
--- a/src/core/hle/service/audio/audren_u.cpp
+++ b/src/core/hle/service/audio/audren_u.cpp
@@ -116,28 +116,26 @@ private:
         // These buffers are written manually to avoid an issue with WriteBuffer throwing errors for
         // checking size 0. Performance size is 0 for most games.
 
-        std::vector<u8> output{};
-        std::vector<u8> performance{};
         auto is_buffer_b{ctx.BufferDescriptorB()[0].Size() != 0};
         if (is_buffer_b) {
             const auto buffersB{ctx.BufferDescriptorB()};
-            output.resize(buffersB[0].Size(), 0);
-            performance.resize(buffersB[1].Size(), 0);
+            tmp_output.resize_destructive(buffersB[0].Size());
+            tmp_performance.resize_destructive(buffersB[1].Size());
         } else {
             const auto buffersC{ctx.BufferDescriptorC()};
-            output.resize(buffersC[0].Size(), 0);
-            performance.resize(buffersC[1].Size(), 0);
+            tmp_output.resize_destructive(buffersC[0].Size());
+            tmp_performance.resize_destructive(buffersC[1].Size());
         }
 
-        auto result = impl->RequestUpdate(input, performance, output);
+        auto result = impl->RequestUpdate(input, tmp_performance, tmp_output);
 
         if (result.IsSuccess()) {
             if (is_buffer_b) {
-                ctx.WriteBufferB(output.data(), output.size(), 0);
-                ctx.WriteBufferB(performance.data(), performance.size(), 1);
+                ctx.WriteBufferB(tmp_output.data(), tmp_output.size(), 0);
+                ctx.WriteBufferB(tmp_performance.data(), tmp_performance.size(), 1);
             } else {
-                ctx.WriteBufferC(output.data(), output.size(), 0);
-                ctx.WriteBufferC(performance.data(), performance.size(), 1);
+                ctx.WriteBufferC(tmp_output.data(), tmp_output.size(), 0);
+                ctx.WriteBufferC(tmp_performance.data(), tmp_performance.size(), 1);
             }
         } else {
             LOG_ERROR(Service_Audio, "RequestUpdate failed error 0x{:02X}!", result.description);
@@ -235,6 +233,8 @@ private:
     Kernel::KEvent* rendered_event;
     Manager& manager;
     std::unique_ptr<Renderer> impl;
+    Common::ScratchBuffer<u8> tmp_output;
+    Common::ScratchBuffer<u8> tmp_performance;
 };
 
 class IAudioDevice final : public ServiceFramework<IAudioDevice> {
-- 
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