Implement more functions/classes from nn::sl (#354)

include/nn/sl/ITitleIconCache.h

@@ -0,0 +1,72 @@
+#pragma once
+
+#include <nn/result.h>
+#include <nn/sl/details/ITitleIconCacheDetails.h>
+#include <nn/sl/sl_cpp.h>
+#include <wut.h>
+
+#ifdef __cplusplus
+
+namespace nn::sl {
+
+    class ITitleIconCache : public details::ITitleIconCacheBase {
+
+    public:
+        ITitleIconCache() {
+            InitInternalVtable();
+        }
+
+        ITitleIconCache(ITitleIconCache &src) {
+            InitInternalVtable();
+        }
+
+        ITitleIconCache &operator=(const ITitleIconCache &other) {
+            InitInternalVtable();
+            return *this;
+        }
+
+        ITitleIconCache &operator=(ITitleIconCache &&src) noexcept {
+            InitInternalVtable();
+            return *this;
+        }
+
+        ~ITitleIconCache() override = default;
+
+    private:
+        static nn::Result LoadWrapper(details::ITitleIconCacheInternal *instance) {
+            return instance->vtable->instance->Load();
+        }
+
+        static nn::Result UpdateWrapper(details::ITitleIconCacheInternal *instance, TitleInfo *titleInfos, int num) {
+            return instance->vtable->instance->Update(titleInfos, num);
+        }
+
+        static nn::Result StoreWrapper(details::ITitleIconCacheInternal *instance) {
+            return instance->vtable->instance->Store();
+        }
+
+        static void GetWrapper(details::ITitleIconCacheInternal *instance, IconInfo *iconInfos, int num) {
+            return instance->vtable->instance->Get(iconInfos, num);
+        }
+
+        details::ITitleIconCacheInternal *GetInternal() override {
+            return &mInstance;
+        }
+
+        void InitInternalVtable() {
+            mVTable          = {.instance = this,
+                                .LoadFn   = &LoadWrapper,
+                                .UpdateFn = &UpdateWrapper,
+                                .StoreFn  = &StoreWrapper,
+                                .GetFn    = &GetWrapper};
+            mInstance.vtable = &mVTable;
+        }
+
+        details::ITitleIconCacheInternal mInstance{};
+        details::ITitleIconCacheInternalVTable mVTable{};
+    };
+
+    details::ITitleIconCacheBase &GetDefaultTitleIconCache();
+} // namespace nn::sl
+
+#endif