[XAM] Fixed issue with Content not being close due to upper-lower characters difference.

- Added string_key_insensitive

src/xenia/base/string_key.h

@@ -10,6 +10,7 @@
 #ifndef XENIA_BASE_STRING_KEY_H_
 #define XENIA_BASE_STRING_KEY_H_
 
+#include <algorithm>
 #include <string>
 #include <variant>
 
@@ -58,6 +59,41 @@ struct string_key : internal::string_key_base {
   };
 };
 
+struct string_key_insensitive : internal::string_key_base {
+ public:
+  explicit string_key_insensitive(const std::string_view value)
+      : string_key_base(value) {}
+  explicit string_key_insensitive(std::string value) : string_key_base(value) {}
+
+  static string_key_insensitive create(const std::string_view value) {
+    return string_key_insensitive(std::string(value));
+  }
+
+  static string_key_insensitive create(std::string value) {
+    return string_key_insensitive(value);
+  }
+
+  bool operator==(const string_key_insensitive& other) const {
+    return other.view().size() == view().size() &&
+           std::ranges::equal(
+               other.view(), view(), {},
+               [](char ch) {
+                 return std::tolower(static_cast<unsigned char>(ch));
+               },
+               [](char ch) {
+                 return std::tolower(static_cast<unsigned char>(ch));
+               });
+  }
+
+  size_t hash() const { return utf8::hash_fnv1a(view()); }
+
+  struct Hash {
+    size_t operator()(const string_key_insensitive& t) const {
+      return t.hash();
+    }
+  };
+};
+
 struct string_key_case : internal::string_key_base {
  public:
   explicit string_key_case(const std::string_view value)
@@ -91,6 +127,13 @@ struct hash<xe::string_key> {
   std::size_t operator()(const xe::string_key& t) const { return t.hash(); }
 };
 
+template <>
+struct hash<xe::string_key_insensitive> {
+  std::size_t operator()(const xe::string_key_insensitive& t) const {
+    return t.hash();
+  }
+};
+
 template <>
 struct hash<xe::string_key_case> {
   std::size_t operator()(const xe::string_key_case& t) const {

src/xenia/kernel/xam/content_manager.cc

@@ -366,7 +366,7 @@ X_RESULT ContentManager::CreateContent(const std::string_view root_name,
                                        const XCONTENT_AGGREGATE_DATA& data) {
   auto global_lock = global_critical_region_.Acquire();
 
-  if (open_packages_.count(string_key(root_name))) {
+  if (open_packages_.count(string_key_insensitive(root_name))) {
     // Already content open with this root name.
     return X_ERROR_ALREADY_EXISTS;
   }
@@ -384,7 +384,8 @@ X_RESULT ContentManager::CreateContent(const std::string_view root_name,
   auto package = ResolvePackage(root_name, xuid, data);
   assert_not_null(package);
 
-  open_packages_.insert({string_key::create(root_name), package.release()});
+  open_packages_.insert(
+      {string_key_insensitive::create(root_name), package.release()});
 
   return X_ERROR_SUCCESS;
 }
@@ -396,7 +397,7 @@ X_RESULT ContentManager::OpenContent(const std::string_view root_name,
                                      const uint32_t disc_number) {
   auto global_lock = global_critical_region_.Acquire();
 
-  if (open_packages_.count(string_key(root_name))) {
+  if (open_packages_.count(string_key_insensitive(root_name))) {
     // Already content open with this root name.
     return X_ERROR_ALREADY_EXISTS;
   }
@@ -425,7 +426,8 @@ X_RESULT ContentManager::OpenContent(const std::string_view root_name,
     }
   }
 
-  open_packages_.insert({string_key::create(root_name), package.release()});
+  open_packages_.insert(
+      {string_key_insensitive::create(root_name), package.release()});
 
   return X_ERROR_SUCCESS;
 }
@@ -433,7 +435,9 @@ X_RESULT ContentManager::OpenContent(const std::string_view root_name,
 X_RESULT ContentManager::CloseContent(const std::string_view root_name) {
   auto global_lock = global_critical_region_.Acquire();
 
-  auto it = open_packages_.find(string_key(root_name));
+  // 415607D6 - Uses XamContentCreate with name "save", but XamContentClose with
+  // "SAVE".
+  auto it = open_packages_.find(string_key_insensitive(root_name));
   if (it == open_packages_.end()) {
     return X_ERROR_FILE_NOT_FOUND;
   }
@@ -509,10 +513,11 @@ std::filesystem::path ContentManager::ResolveGameUserContentPath(
 }
 
 bool ContentManager::IsContentOpen(const XCONTENT_AGGREGATE_DATA& data) const {
-  return std::any_of(open_packages_.cbegin(), open_packages_.cend(),
-                     [data](std::pair<string_key, ContentPackage*> content) {
-                       return data == content.second->GetPackageContentData();
-                     });
+  return std::any_of(
+      open_packages_.cbegin(), open_packages_.cend(),
+      [data](std::pair<string_key_insensitive, ContentPackage*> content) {
+        return data == content.second->GetPackageContentData();
+      });
 }
 
 void ContentManager::CloseOpenedFilesFromContent(

src/xenia/kernel/xam/content_manager.h

@@ -211,7 +211,7 @@ class ContentManager {
 
   // TODO(benvanik): remove use of global lock, it's bad here!
   xe::global_critical_region global_critical_region_;
-  std::unordered_map<string_key, ContentPackage*> open_packages_;
+  std::unordered_map<string_key_insensitive, ContentPackage*> open_packages_;
 };
 
 }  // namespace xam