1 files changed, 69 insertions, 0 deletions
diff --git a/src/core/hle/service/vi/layer_list.h b/src/core/hle/service/vi/layer_list.h
new file mode 100644
index 000000000..1738ede9a
--- /dev/null
+++ b/src/core/hle/service/vi/layer_list.h
@@ -0,0 +1,69 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/vi/layer.h"
+
+namespace Service::VI {
+
+class LayerList {
+public:
+    constexpr LayerList() = default;
+
+    Layer* CreateLayer(u64 owner_aruid, Display* display) {
+        Layer* const layer = GetFreeLayer();
+        if (!layer) {
+            return nullptr;
+        }
+
+        layer->Initialize(++m_next_id, owner_aruid, display);
+        return layer;
+    }
+
+    bool DestroyLayer(u64 layer_id) {
+        Layer* const layer = GetLayerById(layer_id);
+        if (!layer) {
+            return false;
+        }
+
+        layer->Finalize();
+        return true;
+    }
+
+    Layer* GetLayerById(u64 layer_id) {
+        for (auto& layer : m_layers) {
+            if (layer.IsInitialized() && layer.GetId() == layer_id) {
+                return &layer;
+            }
+        }
+
+        return nullptr;
+    }
+
+    template <typename F>
+    void ForEachLayer(F&& cb) {
+        for (auto& layer : m_layers) {
+            if (layer.IsInitialized()) {
+                cb(layer);
+            }
+        }
+    }
+
+private:
+    Layer* GetFreeLayer() {
+        for (auto& layer : m_layers) {
+            if (!layer.IsInitialized()) {
+                return &layer;
+            }
+        }
+
+        return nullptr;
+    }
+
+private:
+    std::array<Layer, 8> m_layers{};
+    u64 m_next_id{};
+};
+
+} // namespace Service::VI