4 files changed, 150 insertions, 138 deletions

diff --git a/src/core/file_sys/archive.h b/src/core/file_sys/archive.h
new file mode 100644
index 000000000..ed2d83640
--- /dev/null
+++ b/src/core/file_sys/archive.h
@@ -0,0 +1,54 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+#include "core/hle/kernel/kernel.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+
+namespace FileSys {
+
+class Archive : NonCopyable {
+public:
+    /// Supported archive types
+    enum class IdCode : u32 {
+        RomFS               = 0x00000003,
+        SaveData            = 0x00000004,
+        ExtSaveData         = 0x00000006,
+        SharedExtSaveData   = 0x00000007,
+        SystemSaveData      = 0x00000008,
+        SDMC                = 0x00000009,
+        SDMCWriteOnly       = 0x0000000A,
+    };
+
+    Archive() { }
+    virtual ~Archive() { }
+
+    /**
+     * Get the IdCode of the archive (e.g. RomFS, SaveData, etc.)
+     * @return IdCode of the archive
+     */
+    virtual IdCode GetIdCode() const = 0;
+
+    /**
+     * Read data from the archive
+     * @param offset Offset in bytes to start reading archive from
+     * @param length Length in bytes to read data from archive
+     * @param buffer Buffer to read data into
+     * @return Number of bytes read
+     */
+    virtual size_t Read(const u64 offset, const u32 length, u8* buffer) const = 0;
+
+    /**
+     * Get the size of the archive in bytes
+     * @return Size of the archive in bytes
+     */
+    virtual size_t GetSize() const = 0;
+};
+
+} // namespace FileSys
diff --git a/src/core/file_sys/archive_romfs.cpp b/src/core/file_sys/archive_romfs.cpp
new file mode 100644
index 000000000..6fdb768d6
--- /dev/null
+++ b/src/core/file_sys/archive_romfs.cpp
@@ -0,0 +1,46 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include "common/common_types.h"
+
+#include "core/file_sys/archive_romfs.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+
+namespace FileSys {
+
+Archive_RomFS::Archive_RomFS(Loader::AppLoader& app_loader) {
+    // Load the RomFS from the app
+    if (Loader::ResultStatus::Success != app_loader.ReadRomFS(raw_data)) {
+        WARN_LOG(FILESYS, "Unable to read RomFS!");
+    }
+}
+
+Archive_RomFS::~Archive_RomFS() {
+}
+
+/**
+ * Read data from the archive
+ * @param offset Offset in bytes to start reading archive from
+ * @param length Length in bytes to read data from archive
+ * @param buffer Buffer to read data into
+ * @return Number of bytes read
+ */
+size_t Archive_RomFS::Read(const u64 offset, const u32 length, u8* buffer) const {
+    DEBUG_LOG(FILESYS, "called offset=%d, length=%d", offset, length);
+    memcpy(buffer, &raw_data[(u32)offset], length);
+    return length;
+}
+
+/**
+ * Get the size of the archive in bytes
+ * @return Size of the archive in bytes
+ */
+size_t Archive_RomFS::GetSize() const {
+    ERROR_LOG(FILESYS, "(UNIMPLEMENTED)");
+    return 0;
+}
+
+} // namespace FileSys
diff --git a/src/core/file_sys/archive_romfs.h b/src/core/file_sys/archive_romfs.h
new file mode 100644
index 000000000..60af8ff0d
--- /dev/null
+++ b/src/core/file_sys/archive_romfs.h
@@ -0,0 +1,50 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <vector>
+
+#include "common/common_types.h"
+
+#include "core/file_sys/archive.h"
+#include "core/loader/loader.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+
+namespace FileSys {
+
+/// File system interface to the RomFS archive
+class Archive_RomFS : public Archive {
+public:
+    Archive_RomFS(Loader::AppLoader& app_loader);
+    ~Archive_RomFS();
+
+    /**
+     * Get the IdCode of the archive (e.g. RomFS, SaveData, etc.)
+     * @return IdCode of the archive
+     */
+    IdCode GetIdCode() const { return IdCode::RomFS; };
+
+    /**
+     * Read data from the archive
+     * @param offset Offset in bytes to start reading archive from
+     * @param length Length in bytes to read data from archive
+     * @param buffer Buffer to read data into
+     * @return Number of bytes read
+     */
+    size_t Read(const u64 offset, const u32 length, u8* buffer) const;
+
+    /**
+     * Get the size of the archive in bytes
+     * @return Size of the archive in bytes
+     */
+    size_t GetSize() const;
+
+private:
+    std::vector<u8> raw_data;
+};
+
+} // namespace FileSys
diff --git a/src/core/file_sys/file_sys.h b/src/core/file_sys/file_sys.h
deleted file mode 100644
index bb8503e62..000000000
--- a/src/core/file_sys/file_sys.h
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright (c) 2012- PPSSPP Project.
-
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, version 2.0 or later versions.
-
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License 2.0 for more details.
-
-// A copy of the GPL 2.0 should have been included with the program.
-// If not, see http://www.gnu.org/licenses/
-
-// Official git repository and contact information can be found at
-// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
-
-#pragma once
-
-#include "common/common.h"
-#include "common/chunk_file.h"
-
-enum FileAccess {
-	FILEACCESS_NONE=0,
-	FILEACCESS_READ=1,
-	FILEACCESS_WRITE=2,
-	FILEACCESS_APPEND=4,
-	FILEACCESS_CREATE=8
-};
-
-enum FileMove {
-	FILEMOVE_BEGIN=0,
-	FILEMOVE_CURRENT=1,
-	FILEMOVE_END=2
-};
-
-enum FileType {
-	FILETYPE_NORMAL=1,
-	FILETYPE_DIRECTORY=2
-};
-
-
-class IHandleAllocator {
-public:
-	virtual ~IHandleAllocator() {}
-	virtual u32 GetNewHandle() = 0;
-	virtual void FreeHandle(u32 handle) = 0;
-};
-
-class SequentialHandleAllocator : public IHandleAllocator {
-public:
-	SequentialHandleAllocator() : handle_(1) {}
-	virtual u32 GetNewHandle() { return handle_++; }
-	virtual void FreeHandle(u32 handle) {}
-private:
-	int handle_;
-};
-
-struct FileInfo {
-	FileInfo() 
-		: size(0), access(0), exists(false), type(FILETYPE_NORMAL), isOnSectorSystem(false), startSector(0), numSectors(0) {}
-
-	void DoState(PointerWrap &p) {
-		auto s = p.Section("FileInfo", 1);
-		if (!s)
-			return;
-
-		p.Do(name);
-		p.Do(size);
-		p.Do(access);
-		p.Do(exists);
-		p.Do(type);
-		p.Do(atime);
-		p.Do(ctime);
-		p.Do(mtime);
-		p.Do(isOnSectorSystem);
-		p.Do(startSector);
-		p.Do(numSectors);
-		p.Do(sectorSize);
-	}
-
-	std::string name;
-	s64 size;
-	u32 access; //unix 777
-	bool exists;
-	FileType type;
-
-	tm atime;
-	tm ctime;
-	tm mtime;
-
-	bool isOnSectorSystem;
-	u32 startSector;
-	u32 numSectors;
-	u32 sectorSize;
-};
-
-
-class IFileSystem {
-public:
-	virtual ~IFileSystem() {}
-
-	virtual void DoState(PointerWrap &p) = 0;
-	virtual std::vector<FileInfo> GetDirListing(std::string path) = 0;
-	virtual u32      OpenFile(std::string filename, FileAccess access, const char *devicename=NULL) = 0;
-	virtual void     CloseFile(u32 handle) = 0;
-	virtual size_t   ReadFile(u32 handle, u8 *pointer, s64 size) = 0;
-	virtual size_t   WriteFile(u32 handle, const u8 *pointer, s64 size) = 0;
-	virtual size_t   SeekFile(u32 handle, s32 position, FileMove type) = 0;
-	virtual FileInfo GetFileInfo(std::string filename) = 0;
-	virtual bool     OwnsHandle(u32 handle) = 0;
-	virtual bool     MkDir(const std::string &dirname) = 0;
-	virtual bool     RmDir(const std::string &dirname) = 0;
-	virtual int      RenameFile(const std::string &from, const std::string &to) = 0;
-	virtual bool     RemoveFile(const std::string &filename) = 0;
-	virtual bool     GetHostPath(const std::string &inpath, std::string &outpath) = 0;
-};
-
-
-class EmptyFileSystem : public IFileSystem {
-public:
-	virtual void DoState(PointerWrap &p) {}
-	std::vector<FileInfo> GetDirListing(std::string path) {std::vector<FileInfo> vec; return vec;}
-	u32      OpenFile(std::string filename, FileAccess access, const char *devicename=NULL) {return 0;}
-	void     CloseFile(u32 handle) {}
-	size_t   ReadFile(u32 handle, u8 *pointer, s64 size) {return 0;}
-	size_t   WriteFile(u32 handle, const u8 *pointer, s64 size) {return 0;}
-	size_t   SeekFile(u32 handle, s32 position, FileMove type) {return 0;}
-	FileInfo GetFileInfo(std::string filename) {FileInfo f; return f;}
-	bool     OwnsHandle(u32 handle) {return false;}
-	virtual bool MkDir(const std::string &dirname) {return false;}
-	virtual bool RmDir(const std::string &dirname) {return false;}
-	virtual int RenameFile(const std::string &from, const std::string &to) {return -1;}
-	virtual bool RemoveFile(const std::string &filename) {return false;}
-	virtual bool GetHostPath(const std::string &inpath, std::string &outpath) {return false;}
-};
-
-