From 812f23d05c77fb10407546c3e7a95447fcbea395 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Wed, 14 Feb 2024 23:44:05 -0500
Subject: vi: manage resources independently of nvnflinger and refactor

---
 src/core/hle/service/vi/display_list.h | 83 ++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 src/core/hle/service/vi/display_list.h

(limited to 'src/core/hle/service/vi/display_list.h')

diff --git a/src/core/hle/service/vi/display_list.h b/src/core/hle/service/vi/display_list.h
new file mode 100644
index 000000000..f710ac472
--- /dev/null
+++ b/src/core/hle/service/vi/display_list.h
@@ -0,0 +1,83 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <cstring>
+
+#include "core/hle/service/vi/display.h"
+
+namespace Service::VI {
+
+class DisplayList {
+public:
+    constexpr DisplayList() = default;
+
+    bool CreateDisplay(const DisplayName& name) {
+        Display* const display = this->GetFreeDisplay();
+        if (!display) {
+            return false;
+        }
+
+        display->Initialize(m_next_id++, name);
+        return true;
+    }
+
+    bool DestroyDisplay(u64 display_id) {
+        Display* display = this->GetDisplayById(display_id);
+        if (!display) {
+            return false;
+        }
+
+        display->Finalize();
+        return true;
+    }
+
+    Display* GetDisplayByName(const DisplayName& name) {
+        for (auto& display : m_displays) {
+            if (display.IsInitialized() &&
+                std::strncmp(name.data(), display.GetDisplayName().data(), sizeof(DisplayName)) ==
+                    0) {
+                return &display;
+            }
+        }
+
+        return nullptr;
+    }
+
+    Display* GetDisplayById(u64 display_id) {
+        for (auto& display : m_displays) {
+            if (display.IsInitialized() && display.GetId() == display_id) {
+                return &display;
+            }
+        }
+
+        return nullptr;
+    }
+
+    template <typename F>
+    void ForEachDisplay(F&& cb) {
+        for (auto& display : m_displays) {
+            if (display.IsInitialized()) {
+                cb(display);
+            }
+        }
+    }
+
+private:
+    Display* GetFreeDisplay() {
+        for (auto& display : m_displays) {
+            if (!display.IsInitialized()) {
+                return &display;
+            }
+        }
+
+        return nullptr;
+    }
+
+private:
+    std::array<Display, 8> m_displays{};
+    u64 m_next_id{};
+};
+
+} // namespace Service::VI
-- 
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