1 files changed, 65 insertions, 0 deletions
diff --git a/src/audio_core/renderer/command/mix/mix_ramp_grouped.cpp b/src/audio_core/renderer/command/mix/mix_ramp_grouped.cpp
new file mode 100644
index 000000000..43dbef9fc
--- /dev/null
+++ b/src/audio_core/renderer/command/mix/mix_ramp_grouped.cpp
@@ -0,0 +1,65 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/mix_ramp.h"
+#include "audio_core/renderer/command/mix/mix_ramp_grouped.h"
+
+namespace AudioCore::AudioRenderer {
+
+void MixRampGroupedCommand::Dump(const ADSP::CommandListProcessor& processor, std::string& string) {
+    string += "MixRampGroupedCommand";
+    for (u32 i = 0; i < buffer_count; i++) {
+        string += fmt::format("\n\t{}", i);
+        const auto ramp{(volumes[i] - prev_volumes[i]) / static_cast<f32>(processor.sample_count)};
+        string += fmt::format("\n\t\tinput {:02X}", inputs[i]);
+        string += fmt::format("\n\t\toutput {:02X}", outputs[i]);
+        string += fmt::format("\n\t\tvolume {:.8f}", volumes[i]);
+        string += fmt::format("\n\t\tprev_volume {:.8f}", prev_volumes[i]);
+        string += fmt::format("\n\t\tramp {:.8f}", ramp);
+        string += "\n";
+    }
+}
+
+void MixRampGroupedCommand::Process(const ADSP::CommandListProcessor& processor) {
+    std::span<s32> prev_samples = {reinterpret_cast<s32*>(previous_samples), MaxMixBuffers};
+
+    for (u32 i = 0; i < buffer_count; i++) {
+        auto last_sample{0};
+        if (prev_volumes[i] != 0.0f || volumes[i] != 0.0f) {
+            const auto output{processor.mix_buffers.subspan(outputs[i] * processor.sample_count,
+                                                            processor.sample_count)};
+            const auto input{processor.mix_buffers.subspan(inputs[i] * processor.sample_count,
+                                                           processor.sample_count)};
+            const auto ramp{(volumes[i] - prev_volumes[i]) /
+                            static_cast<f32>(processor.sample_count)};
+
+            if (prev_volumes[i] == 0.0f && ramp == 0.0f) {
+                prev_samples[i] = 0;
+                continue;
+            }
+
+            switch (precision) {
+            case 15:
+                last_sample =
+                    ApplyMixRamp<15>(output, input, prev_volumes[i], ramp, processor.sample_count);
+                break;
+            case 23:
+                last_sample =
+                    ApplyMixRamp<23>(output, input, prev_volumes[i], ramp, processor.sample_count);
+                break;
+            default:
+                LOG_ERROR(Service_Audio, "Invalid precision {}", precision);
+                break;
+            }
+        }
+
+        prev_samples[i] = last_sample;
+    }
+}
+
+bool MixRampGroupedCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer