loader, anim-crop-tool: workaround relative path usage

3 files changed, 20 insertions, 2 deletions

diff --git a/loader/filesystem.cpp b/loader/filesystem.cpp
index 850ec84f..f3a72365 100644
--- a/loader/filesystem.cpp
+++ b/loader/filesystem.cpp
@@ -38,12 +38,26 @@ bool loader_impl::chdir(StringView pathname)
     return !ret;
 }
 
+StringView loader_impl::startup_directory() noexcept
+{
+    fm_debug_assert(!original_working_directory.isEmpty());
+    return original_working_directory;
+}
+
 void loader_impl::set_application_working_directory()
 {
     static bool once = false;
     if (once)
         return;
     once = true;
+    if (auto loc = Path::currentDirectory(); loc)
+        original_working_directory = std::move(*loc);
+    else
+    {
+        Error err; err << "can't get original working directory:";
+        Corrade::Utility::Implementation::printErrnoErrorString(err, errno);
+        original_working_directory = "."_s;
+    }
     if (const auto loc = Path::executableLocation())
     {
         String path;
diff --git a/loader/impl.hpp b/loader/impl.hpp
index e1d6d649..8fa650ea 100644
--- a/loader/impl.hpp
+++ b/loader/impl.hpp
@@ -28,6 +28,8 @@ struct loader_impl final : loader_
     std::vector<serialized_scenery> sceneries_array;
     std::unordered_map<StringView, const serialized_scenery*> sceneries_map;
 
+    String original_working_directory;
+
     StringView shader(StringView filename) noexcept override;
     Trade::ImageData2D texture(StringView prefix, StringView filename) noexcept(false);
     std::shared_ptr<struct tile_atlas> tile_atlas(StringView filename, Vector2ub size, Optional<pass_mode> pass) noexcept(false) override;
@@ -39,9 +41,10 @@ struct loader_impl final : loader_
 
     void get_anim_atlas_list();
     void get_scenery_list();
-
-    static void set_application_working_directory();
     static anim_def deserialize_anim(StringView filename);
+
+    void set_application_working_directory();
+    StringView startup_directory() noexcept override;
     static void system_init();
     static bool chdir(StringView pathname);
     [[nodiscard]] static bool check_atlas_name(StringView name);
diff --git a/loader/loader.hpp b/loader/loader.hpp
index 1189a02d..fadccb45 100644
--- a/loader/loader.hpp
+++ b/loader/loader.hpp
@@ -25,6 +25,7 @@ struct loader_
     static std::vector<std::shared_ptr<struct tile_atlas>> tile_atlases(StringView filename, pass_mode p);
     virtual const std::vector<serialized_scenery>& sceneries() = 0;
     virtual const scenery_proto& scenery(StringView name) noexcept(false) = 0;
+    virtual StringView startup_directory() noexcept = 0;
 
     loader_(const loader_&) = delete;
     loader_& operator=(const loader_&) = delete;