1 files changed, 55 insertions, 0 deletions

diff --git a/src/audio_core/renderer/command/mix/depop_for_mix_buffers.h b/src/audio_core/renderer/command/mix/depop_for_mix_buffers.h
new file mode 100644
index 000000000..e7268ff27
--- /dev/null
+++ b/src/audio_core/renderer/command/mix/depop_for_mix_buffers.h
@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+#include "common/fixed_point.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for depopping a mix buffer.
+ * Adds a cumulation of previous samples to the current mix buffer with a decay.
+ */
+struct DepopForMixBuffersCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Starting input mix buffer index
+    u32 input;
+    /// Number of mix buffers to depop
+    u32 count;
+    /// Amount to decay the depop sample for each new sample
+    Common::FixedPoint<49, 15> decay;
+    /// Address of the depop buffer, holding the last sample for every mix buffer
+    CpuAddr depop_buffer;
+};
+
+} // namespace AudioCore::AudioRenderer