Update app loader to have a function for getting the long variant of the game title.

src/core/loader/loader.h

@@ -245,7 +245,7 @@ public:
     }
 
     /**
-     * Get the title of the application
+     * Get the short title of the application
      * @param title Reference to store the application title into
      * @return ResultStatus result of function
      */
@@ -253,6 +253,15 @@ public:
         return ResultStatus::ErrorNotImplemented;
     }
 
+    /**
+     * Get the long title of the application
+     * @param title Referencec to store the application title into
+     * @param ResultStatus result of function
+     */
+    virtual ResultStatus ReadTitleLong([[maybe_unused]]std::string& title) {
+        return ResultStatus::ErrorNotImplemented;
+    }
+
 protected:
     Core::System& system;
     FileUtil::IOFile file;

src/core/loader/ncch.cpp

@@ -381,4 +381,22 @@ ResultStatus AppLoader_NCCH::ReadTitle(std::string& title) {
     return ResultStatus::Success;
 }
 
+ResultStatus AppLoader_NCCH::ReadTitleLong(std::string& title) {
+    std::vector<u8> data;
+    Loader::SMDH smdh;
+    ReadIcon(data);
+
+    if (!Loader::IsValidSMDH(data)) {
+        return ResultStatus::ErrorInvalidFormat;
+    }
+
+    std::memcpy(&smdh, data.data(), sizeof(Loader::SMDH));
+
+    const auto& long_title = smdh.GetLongTitle(SMDH::TitleLanguage::English);
+    auto title_end = std::find(long_title.begin(), long_title.end(), u'\0');
+    title = Common::UTF16ToUTF8(std::u16string{long_title.begin(), title_end});
+
+    return ResultStatus::Success;
+}
+
 } // namespace Loader

src/core/loader/ncch.h

@@ -70,6 +70,7 @@ public:
     ResultStatus DumpUpdateRomFS(const std::string& target_path) override;
 
     ResultStatus ReadTitle(std::string& title) override;
+    ResultStatus ReadTitleLong(std::string& title) override;
 
 private:
     /**