11 files changed, 16 insertions, 16 deletions
diff --git a/src/audio_core/renderer/adsp/adsp.cpp b/src/audio_core/renderer/adsp/adsp.cpp
index e05a22d86..a28395663 100644
--- a/src/audio_core/renderer/adsp/adsp.cpp
+++ b/src/audio_core/renderer/adsp/adsp.cpp
@@ -50,7 +50,7 @@ u32 ADSP::GetRemainCommandCount(const u32 session_id) const {
     return render_mailbox.GetRemainCommandCount(session_id);
 }
 
-void ADSP::SendCommandBuffer(const u32 session_id, CommandBuffer& command_buffer) {
+void ADSP::SendCommandBuffer(const u32 session_id, const CommandBuffer& command_buffer) {
     render_mailbox.SetCommandBuffer(session_id, command_buffer);
 }
 
diff --git a/src/audio_core/renderer/adsp/adsp.h b/src/audio_core/renderer/adsp/adsp.h
index 523184dc2..f7a2f25e4 100644
--- a/src/audio_core/renderer/adsp/adsp.h
+++ b/src/audio_core/renderer/adsp/adsp.h
@@ -131,7 +131,7 @@ public:
      * @param session_id     - The session id to check (0 or 1).
      * @param command_buffer - The command buffer to process.
      */
-    void SendCommandBuffer(u32 session_id, CommandBuffer& command_buffer);
+    void SendCommandBuffer(u32 session_id, const CommandBuffer& command_buffer);
 
     /**
      * Clear the command buffers (does not clear the time taken or the remaining command count)
diff --git a/src/audio_core/renderer/adsp/audio_renderer.cpp b/src/audio_core/renderer/adsp/audio_renderer.cpp
index bcd889ecb..bafe4822a 100644
--- a/src/audio_core/renderer/adsp/audio_renderer.cpp
+++ b/src/audio_core/renderer/adsp/audio_renderer.cpp
@@ -51,7 +51,7 @@ CommandBuffer& AudioRenderer_Mailbox::GetCommandBuffer(const s32 session_id) {
     return command_buffers[session_id];
 }
 
-void AudioRenderer_Mailbox::SetCommandBuffer(const u32 session_id, CommandBuffer& buffer) {
+void AudioRenderer_Mailbox::SetCommandBuffer(const u32 session_id, const CommandBuffer& buffer) {
     command_buffers[session_id] = buffer;
 }
 
diff --git a/src/audio_core/renderer/adsp/audio_renderer.h b/src/audio_core/renderer/adsp/audio_renderer.h
index 49f66f21c..02e923c84 100644
--- a/src/audio_core/renderer/adsp/audio_renderer.h
+++ b/src/audio_core/renderer/adsp/audio_renderer.h
@@ -91,7 +91,7 @@ public:
      * @param session_id - The session id to get (0 or 1).
      * @param buffer     - The command buffer to set.
      */
-    void SetCommandBuffer(u32 session_id, CommandBuffer& buffer);
+    void SetCommandBuffer(u32 session_id, const CommandBuffer& buffer);
 
     /**
      * Get the total render time taken for the last command lists sent.
diff --git a/src/audio_core/renderer/behavior/behavior_info.cpp b/src/audio_core/renderer/behavior/behavior_info.cpp
index 92140aaea..3d2a91312 100644
--- a/src/audio_core/renderer/behavior/behavior_info.cpp
+++ b/src/audio_core/renderer/behavior/behavior_info.cpp
@@ -34,7 +34,7 @@ void BehaviorInfo::ClearError() {
     error_count = 0;
 }
 
-void BehaviorInfo::AppendError(ErrorInfo& error) {
+void BehaviorInfo::AppendError(const ErrorInfo& error) {
     LOG_ERROR(Service_Audio, "Error during RequestUpdate, reporting code {:04X} address {:08X}",
               error.error_code.raw, error.address);
     if (error_count < MaxErrors) {
@@ -42,7 +42,7 @@ void BehaviorInfo::AppendError(ErrorInfo& error) {
     }
 }
 
-void BehaviorInfo::CopyErrorInfo(std::span<ErrorInfo> out_errors, u32& out_count) {
+void BehaviorInfo::CopyErrorInfo(std::span<ErrorInfo> out_errors, u32& out_count) const {
     out_count = std::min(error_count, MaxErrors);
 
     for (size_t i = 0; i < MaxErrors; i++) {
diff --git a/src/audio_core/renderer/behavior/behavior_info.h b/src/audio_core/renderer/behavior/behavior_info.h
index 7333c297f..15c948344 100644
--- a/src/audio_core/renderer/behavior/behavior_info.h
+++ b/src/audio_core/renderer/behavior/behavior_info.h
@@ -94,7 +94,7 @@ public:
      *
      * @param error - The new error.
      */
-    void AppendError(ErrorInfo& error);
+    void AppendError(const ErrorInfo& error);
 
     /**
      * Copy errors to the given output container.
@@ -102,7 +102,7 @@ public:
      * @param out_errors - Output container to receive the errors.
      * @param out_count  - The number of errors written.
      */
-    void CopyErrorInfo(std::span<ErrorInfo> out_errors, u32& out_count);
+    void CopyErrorInfo(std::span<ErrorInfo> out_errors, u32& out_count) const;
 
     /**
      * Update the behaviour flags.
diff --git a/src/audio_core/renderer/behavior/info_updater.cpp b/src/audio_core/renderer/behavior/info_updater.cpp
index 06a37e1a6..c0a307b89 100644
--- a/src/audio_core/renderer/behavior/info_updater.cpp
+++ b/src/audio_core/renderer/behavior/info_updater.cpp
@@ -485,7 +485,7 @@ Result InfoUpdater::UpdateBehaviorInfo(BehaviorInfo& behaviour_) {
     return ResultSuccess;
 }
 
-Result InfoUpdater::UpdateErrorInfo(BehaviorInfo& behaviour_) {
+Result InfoUpdater::UpdateErrorInfo(const BehaviorInfo& behaviour_) {
     auto out_params{reinterpret_cast<BehaviorInfo::OutStatus*>(output)};
     behaviour_.CopyErrorInfo(out_params->errors, out_params->error_count);
 
diff --git a/src/audio_core/renderer/behavior/info_updater.h b/src/audio_core/renderer/behavior/info_updater.h
index f0b445d9c..c817d8d8d 100644
--- a/src/audio_core/renderer/behavior/info_updater.h
+++ b/src/audio_core/renderer/behavior/info_updater.h
@@ -130,7 +130,7 @@ public:
      * @param behaviour - Behaviour to update.
      * @return Result code.
      */
-    Result UpdateErrorInfo(BehaviorInfo& behaviour);
+    Result UpdateErrorInfo(const BehaviorInfo& behaviour);
 
     /**
      * Update splitter.
diff --git a/src/audio_core/renderer/effect/i3dl2.h b/src/audio_core/renderer/effect/i3dl2.h
index 7a088a627..1ebbc5c4c 100644
--- a/src/audio_core/renderer/effect/i3dl2.h
+++ b/src/audio_core/renderer/effect/i3dl2.h
@@ -99,7 +99,7 @@ public:
             return out_sample;
         }
 
-        Common::FixedPoint<50, 14> Read() {
+        Common::FixedPoint<50, 14> Read() const {
             return *output;
         }
 
@@ -110,7 +110,7 @@ public:
             }
         }
 
-        Common::FixedPoint<50, 14> TapOut(const s32 index) {
+        Common::FixedPoint<50, 14> TapOut(const s32 index) const {
             auto out{input - (index + 1)};
             if (out < buffer.data()) {
                 out += max_delay + 1;
diff --git a/src/audio_core/renderer/effect/reverb.h b/src/audio_core/renderer/effect/reverb.h
index b4df9f6ef..a72475c3c 100644
--- a/src/audio_core/renderer/effect/reverb.h
+++ b/src/audio_core/renderer/effect/reverb.h
@@ -95,7 +95,7 @@ public:
             return out_sample;
         }
 
-        Common::FixedPoint<50, 14> Read() {
+        Common::FixedPoint<50, 14> Read() const {
             return *output;
         }
 
@@ -106,7 +106,7 @@ public:
             }
         }
 
-        Common::FixedPoint<50, 14> TapOut(const s32 index) {
+        Common::FixedPoint<50, 14> TapOut(const s32 index) const {
             auto out{input - (index + 1)};
             if (out < buffer.data()) {
                 out += sample_count;
diff --git a/src/audio_core/renderer/nodes/node_states.h b/src/audio_core/renderer/nodes/node_states.h
index c0fced56f..94b1d1254 100644
--- a/src/audio_core/renderer/nodes/node_states.h
+++ b/src/audio_core/renderer/nodes/node_states.h
@@ -56,7 +56,7 @@ class NodeStates {
          *
          * @return The current stack position.
          */
-        u32 Count() {
+        u32 Count() const {
             return pos;
         }
 
@@ -83,7 +83,7 @@ class NodeStates {
          *
          * @return The node on the top of the stack.
          */
-        u32 top() {
+        u32 top() const {
             return stack[pos - 1];
         }