From 8e27312fdf0ad74c9457f0ddfd0cf84cc8584f3b Mon Sep 17 00:00:00 2001
From: MaranBr <maranbr@outlook.com>
Date: Mon, 29 Sep 2025 16:20:58 -0400
Subject: [PATCH] Use cached offset

---
 .../renderer/command/sink/device.cpp          | 20 ++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/src/audio_core/renderer/command/sink/device.cpp b/src/audio_core/renderer/command/sink/device.cpp
index 75c4dae217..fd87878949 100644
--- a/src/audio_core/renderer/command/sink/device.cpp
+++ b/src/audio_core/renderer/command/sink/device.cpp
@@ -36,14 +36,20 @@ void DeviceSinkCommand::Process(const AudioRenderer::CommandListProcessor& proce
         .consumed{false},
     };
 
-    std::array<s16, TargetSampleCount * MaxChannels> samples{};
-    for (u32 channel = 0; channel < input_count; channel++) {
-        //const auto offset{inputs[channel] * out_buffer.frames};
-        const auto offset{channel * out_buffer.frames};
+    static bool initialized = false;
+    static std::array<s32, MaxChannels> cached_offsets{};
+    if (!initialized) {
+        for (u32 channel = 0; channel < input_count; channel++) {
+            cached_offsets[channel] = static_cast<s16>(inputs[channel] * out_buffer.frames);
+        }
+        initialized = true;
+    }
 
-        for (u32 index = 0; index < out_buffer.frames; index++) {
-            samples[index * input_count + channel] =
-                static_cast<s16>(std::clamp(sample_buffer[offset + index], min, max));
+    std::array<s16, TargetSampleCount * MaxChannels> samples{};
+    for (u32 channel = 0; channel < input_count; ++channel) {
+        const s32 offset = cached_offsets[channel];
+        for (u32 index = 0; index < out_buffer.frames; ++index) {
+            samples[index * input_count + channel] = static_cast<s16>(std::clamp(sample_buffer[offset + index], min, max));
         }
     }