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include/renderd7/FileSystem.hpp

@@ -0,0 +1,110 @@
+//FileSystem based on libphyfs based on https://github.com/TurtleP/3ds-examples/blob/fs/physfs/fs/physfs/include/filesystem.h
+#pragma once
+#include <string>
+#include <vector>
+
+#include <physfs.h>
+
+namespace RenderD7
+{
+    namespace FileSystem
+    {
+        static constexpr auto MAX_STAMP = 0x20000000000000LL;
+
+        enum FileMode
+        {
+            FileMode_Open,
+            FileMode_Read,
+            FileMode_Write,
+            FileMode_Closed
+        };
+
+        enum FileType
+        {
+            FileType_File,
+            FileType_Directory,
+            FileType_SymLink,
+            FileType_Other
+        };
+
+        struct File
+        {
+            PHYSFS_file* handle;
+            FileMode mode;
+
+            File()
+            {
+                this->handle = nullptr;
+                this->mode   = FileMode_Closed;
+            }
+
+            int64_t GetSize()
+            {
+                if (this->handle == nullptr)
+                    return 0;
+
+                return (int64_t)PHYSFS_fileLength(this->handle);
+            }
+        };
+
+        struct Info
+        {
+            int64_t size;
+            int64_t mod_time;
+            FileType type;
+        };
+
+        int Init(const char* argv);
+
+        void Initialize();
+
+        /*
+        ** mounts a specific directory for physfs to search in
+        ** this is typically a main directory
+        */
+        bool SetSource(const char* source);
+
+        /*
+        ** mounts a specific directory as a "save" directory
+        ** if appended, it will be added to the search path
+        */
+        bool SetIdentity(const char* name, bool append);
+
+        static std::string savePath;
+
+        /* gets the last physfs error */
+        const char* GetPhysfsError();
+
+        /* strips any duplicate slashes */
+        std::string Normalize(const std::string& input);
+
+        /* gets the user directory from physfs */
+        std::string GetUserDirectory();
+
+        /* gets the save directory */
+        std::string GetSaveDirectory();
+
+        /* sets up the writing directory for physfs */
+        bool SetupWriteDirectory();
+
+        /* gets a list of files in a directory */
+        void GetDirectoryItems(const char* directory, std::vector<std::string>& items);
+
+        /* gets the size, mod_time, and type of a file */
+        bool GetInfo(const char* filename, Info& info);
+
+        /* creates a new directory */
+        bool CreateDirectory(const char* name);
+
+        bool CloseFile(File& file);
+
+        /* creates a new file */
+        bool OpenFile(File& file, const char* name, FileMode mode);
+
+        /* writes to a file */
+        bool WriteFile(File& file, const void* data, int64_t size);
+
+        /* reads a file's content */
+        int64_t ReadFile(File& file, void* destination, int64_t size);
+        }
+}