game_list, loader: find loose ExeFS dumps and show their name and icon

1 files changed, 14 insertions, 4 deletions

diff --git a/src/core/loader/deconstructed_rom_directory.cpp b/src/core/loader/deconstructed_rom_directory.cpp
index 4f2eb1d446..cda1645548 100644
--- a/src/core/loader/deconstructed_rom_directory.cpp
+++ b/src/core/loader/deconstructed_rom_directory.cpp
@@ -5,6 +5,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
+#include <cctype>
 #include <cstring>
 #include <string_view>
 #include "common/logging.h"
@@ -131,9 +132,17 @@ std::string RomFSProductVersion(const FileSys::VirtualDir& romfs_dir) {
 }
 
 // Loose ExeFS dumps carry no control data, but icon/nacp sidecars can be dropped next to the
-// ExeFS or in the game folder above it (<game>/exefs/main and
+// ExeFS or in the game folder above it (<game>/exefs/main, <game>/base/exefs/main and
 // <game>/updates/<title id>/exefs/main layouts).
 std::vector<FileSys::VirtualDir> FindSidecarDirs(const FileSys::VirtualDir& exefs_dir) {
+    const auto equals_ignore_case = [](const std::string& a, std::string_view b) {
+        return a.size() == b.size() &&
+               std::equal(a.begin(), a.end(), b.begin(), [](char x, char y) {
+                   return std::tolower(static_cast<unsigned char>(x)) ==
+                          std::tolower(static_cast<unsigned char>(y));
+               });
+    };
+
     std::vector<FileSys::VirtualDir> dirs{exefs_dir};
     for (auto dir = exefs_dir; dirs.size() < 4;) {
         const auto parent = dir->GetParentDirectory();
@@ -142,10 +151,11 @@ std::vector<FileSys::VirtualDir> FindSidecarDirs(const FileSys::VirtualDir& exef
         }
         const auto& name = parent->GetName();
         dirs.push_back(parent);
-        const bool title_id_like =
-            name == "updates" ||
+        const bool storage_level =
+            equals_ignore_case(name, "base") || equals_ignore_case(name, "update") ||
+            equals_ignore_case(name, "updates") ||
             (!name.empty() && name.find_first_not_of("0123456789abcdefABCDEF") == std::string::npos);
-        if (!title_id_like) {
+        if (!storage_level) {
             break;
         }
         dir = parent;