10 files changed, 596 insertions, 0 deletions
diff --git a/backends/file/base-file.cpp b/backends/file/base-file.cpp
new file mode 100644
index 0000000000..3174f5828c
--- /dev/null
+++ b/backends/file/base-file.cpp
@@ -0,0 +1,226 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+
+ * 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 for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/branches/gsoc2007-fsnode/common/file.cpp $
+ * $Id: file.cpp 28150 2007-07-20 19:42:38Z david_corrales $
+ *
+ */
+
+#include "backends/file/base-file.h"
+#include "common/fs.h"
+#include "common/hashmap.h"
+#include "common/util.h"
+#include "common/hash-str.h"
+
+#if defined(UNIX) || defined(__SYMBIAN32__)
+#include <errno.h>
+#endif
+
+#ifdef MACOSX
+#include "CoreFoundation/CoreFoundation.h"
+#endif
+
+BaseFile::BaseFile() {
+	_handle = 0;
+	_ioFailed = false;
+}
+
+//#define DEBUG_FILE_REFCOUNT
+
+BaseFile::~BaseFile() {
+#ifdef DEBUG_FILE_REFCOUNT
+	warning("File::~File on file '%s'", _name.c_str());
+#endif
+	close();
+}
+
+bool BaseFile::open(const String &filename, AccessMode mode) {
+	assert(mode == kFileReadMode || mode == kFileWriteMode);
+
+	if (filename.empty()) {
+		error("File::open: No filename was specified");
+	}
+
+	if (_handle) {
+		error("File::open: This file object already is opened (%s), won't open '%s'", _name.c_str(), filename.c_str());
+	}
+
+	_name.clear();
+	clearIOFailed();
+
+	const char *modeStr = (mode == kFileReadMode) ? "rb" : "wb";
+	_handle = _fopen(filename.c_str(), modeStr);
+	
+	if (_handle == NULL) {
+		if (mode == kFileReadMode)
+			debug(2, "File %s not found", filename.c_str());
+		else
+			debug(2, "File %s not opened", filename.c_str());
+		return false;
+	}
+	
+	_name = filename;
+
+#ifdef DEBUG_FILE_REFCOUNT
+	warning("File::open on file '%s'", _name.c_str());
+#endif
+
+	return true;
+}
+
+bool BaseFile::remove(const String &filename){
+	if (remove(filename.c_str()) != 0) {
+		if(errno == EACCES)
+			;//TODO: read-only file
+		if(errno == ENOENT)
+			;//TODO: non-existent file
+		
+		return false;
+	} else {
+		return true;
+	}
+}
+
+void BaseFile::close() {
+	if (_handle)
+		_fclose((FILE *)_handle);
+	_handle = NULL;
+}
+
+bool BaseFile::isOpen() const {
+	return _handle != NULL;
+}
+
+bool BaseFile::ioFailed() const {
+	return _ioFailed != 0;
+}
+
+void BaseFile::clearIOFailed() {
+	_ioFailed = false;
+}
+
+bool BaseFile::eof() const {
+	if (_handle == NULL) {
+		error("File::eof: File is not open!");
+		return false;
+	}
+
+	return _feof((FILE *)_handle) != 0;
+}
+
+uint32 BaseFile::pos() const {
+	if (_handle == NULL) {
+		error("File::pos: File is not open!");
+		return 0;
+	}
+
+	return _ftell((FILE *)_handle);
+}
+
+uint32 BaseFile::size() const {
+	if (_handle == NULL) {
+		error("File::size: File is not open!");
+		return 0;
+	}
+
+	uint32 oldPos = _ftell((FILE *)_handle);
+	_fseek((FILE *)_handle, 0, SEEK_END);
+	uint32 length = _ftell((FILE *)_handle);
+	_fseek((FILE *)_handle, oldPos, SEEK_SET);
+
+	return length;
+}
+
+void BaseFile::seek(int32 offs, int whence) {
+	if (_handle == NULL) {
+		error("File::seek: File is not open!");
+		return;
+	}
+
+	if (_fseek((FILE *)_handle, offs, whence) != 0)
+		_clearerr((FILE *)_handle);
+}
+
+uint32 BaseFile::read(void *ptr, uint32 len) {
+	byte *ptr2 = (byte *)ptr;
+	uint32 real_len;
+
+	if (_handle == NULL) {
+		error("File::read: File is not open!");
+		return 0;
+	}
+
+	if (len == 0)
+		return 0;
+
+	real_len = _fread(ptr2, 1, len, (FILE *)_handle);
+	if (real_len < len) {
+		_ioFailed = true;
+	}
+
+	return real_len;
+}
+
+/*uint32 File::write(const void *ptr, uint32 len) {
+	if (_handle == NULL) {
+		error("File::write: File is not open!");
+		return 0;
+	}
+
+	if (len == 0)
+		return 0;
+
+	if ((uint32)_fwrite(ptr, 1, len, (FILE *)_handle) != len) {
+		_ioFailed = true;
+	}
+
+	return len;
+}*/
+
+void BaseFile::_clearerr(FILE *stream) { 
+	clearerr(stream);
+}
+
+int BaseFile::_fclose(FILE *stream) {
+	return fclose(stream);
+}
+
+int BaseFile::_feof(FILE *stream) const {
+	return feof(stream);
+}
+FILE *BaseFile::_fopen(const char * filename, const char * mode) {
+	return fopen(filename, mode);
+}
+
+int BaseFile::_fread(void *buffer, size_t obj_size, size_t num, FILE *stream) {
+	return fread(buffer, obj_size, num, stream);
+}
+
+int BaseFile::_fseek(FILE * stream, long int offset, int origin) const {
+	return fseek(stream, offset, origin);
+}
+
+long BaseFile::_ftell(FILE *stream) const {
+	return ftell(stream);
+}
+
+int BaseFile::_fwrite(const void * ptr, size_t obj_size, size_t count, FILE * stream) {
+	return fwrite(ptr, obj_size, count, stream);
+}
diff --git a/backends/file/base-file.h b/backends/file/base-file.h
new file mode 100644
index 0000000000..f383a1a453
--- /dev/null
+++ b/backends/file/base-file.h
@@ -0,0 +1,180 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL: $
+ * $Id: $
+ */
+
+#ifndef BACKENDS_BASE_FILE_H
+#define BACKENDS_BASE_FILE_H
+
+#include "common/stdafx.h"
+#include "common/scummsys.h"
+#include "common/str.h"
+#include "common/stream.h"
+
+using namespace Common;
+
+/**
+ * Implements several file related functions used by the Common::File wrapper.
+ */
+class BaseFile : public Common::SeekableReadStream {
+protected:
+	/** File handle to the actual file; 0 if no file is open. */
+	void *_handle;
+
+	/** Status flag which tells about recent I/O failures. */
+	bool _ioFailed;
+
+	/** The name of this file, for debugging. */
+	String _name;
+	
+	/**
+	 * The following functions are meant to be redefined by subclasses if needed. E.g. ps2-file.h or ds-file.h
+	 * They behave as the C++ standard I/O methods so refer to the standard documentation for usage.
+	 * 
+	 * This design was inspired on the Template pattern.
+	 */
+	void _clearerr(FILE *stream);
+	int _fclose(FILE *stream);
+	int _feof(FILE *stream) const;
+	FILE *_fopen(const char * filename, const char * mode);
+	int _fread(void *buffer, size_t obj_size, size_t num, FILE *stream);
+	int _fseek(FILE * stream, long int offset, int origin) const;
+	long _ftell(FILE *stream) const;
+	int _fwrite(const void * ptr, size_t obj_size, size_t count, FILE * stream);
+
+private:
+	// Disallow copying BaseFile objects. There is not strict reason for this,
+	// except that so far we never had real need for such a feature, and
+	// code that accidentally copied File objects tended to break in strange
+	// ways.
+	BaseFile(const BaseFile &f);
+	BaseFile &operator =(const BaseFile &f);
+	
+public:
+	enum AccessMode {
+		kFileReadMode = 1,
+		kFileWriteMode = 2
+	};
+	
+	BaseFile();
+	virtual ~BaseFile();
+	
+	/**
+	 * Clears the flag for the last ocurred IO failure.
+	 */
+	void clearIOFailed();
+	
+	/**
+	 * Closes the file handle.
+	 */
+	virtual void close();
+	
+	/**
+	 * Checks for end of file.
+	 *
+	 * @return: true if the end of file is reached, false otherwise.
+	 */
+	bool eof() const;
+	
+	/**
+	 * Checks for the end of the stream. In this case it's equivalent to eof().
+	 * 
+	 * @return: true if the end of the stream is reached, false otherwise.
+	 */
+	bool eos() const { return eof(); }
+	
+	/**
+	 * Checks whether the last IO operation failed.
+	 * 
+	 * @return: true if the last IO operation failed, false otherwise.
+	 */
+	bool ioFailed() const;
+	
+	/**
+	 * Obtain the filename of the opened file.
+	 *
+	 * @return: the filename of the opened file.
+	 */
+	const char *name() const { return _name.c_str(); }
+	
+	/**
+	 * Checks if the object opened a file successfully.
+	 *
+	 * @return: true if any file is opened, false otherwise.
+	 */
+	bool isOpen() const;
+	
+	/**
+	 * Opens a given file.
+	 * 
+	 * @param filename Path of the file to be opened.
+	 * @param mode Mode to open to file. Read or write.
+	 */
+	virtual bool open(const String &filename, AccessMode mode = kFileReadMode);
+	
+	/**
+	 * Obtain the position of the seek pointer.
+	 * 
+	 * @return The position of the seek pointer within the file.
+	 */
+	uint32 pos() const;
+	
+	/**
+	 * Read a chunk of data from the file.
+	 * 
+	 * @param dataPtr Buffer to the place the read contents.
+	 * @param dataSize Amount of bytes to read from the file.
+	 * @return Amount of read bytes.
+	 */
+	uint32 read(void *dataPtr, uint32 dataSize);
+	
+	/**
+	 * Remove a given file from the filesystem.
+	 * 
+	 * @param filename Path to the file to be removed.
+	 * @return true if the file was removed succesfully, false otherwise.
+	 */
+	virtual bool remove(const String &filename);
+	
+	/**
+	 * Move the seek pointer within the file.
+	 * 
+	 * @param offs Amount of bytes to move the pointer within the file.
+	 * @param whence Starting point of the seek cursor.
+	 */
+	void seek(int32 offs, int whence = SEEK_SET);
+	
+	/**
+	 * Obtain the size of the file.
+	 * 
+	 * @return The size of the file in bytes.
+	 */
+	uint32 size() const;
+	
+	//TODO: Remove the write functions? Also remove the enum then
+	/**
+	 * Write a chunk of data to the file.
+	 */
+	//uint32 write(const void *dataPtr, uint32 dataSize);	
+};
+
+#endif	//BACKENDS_BASE_FILE_H
diff --git a/backends/file/ds/ds-file.cpp b/backends/file/ds/ds-file.cpp
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/backends/file/ds/ds-file.cpp
diff --git a/backends/file/ds/ds-file.h b/backends/file/ds/ds-file.h
new file mode 100644
index 0000000000..e133def548
--- /dev/null
+++ b/backends/file/ds/ds-file.h
@@ -0,0 +1,46 @@
+#ifdef __DS__
+
+	// These functions replease the standard library functions of the same name.
+	// As this header is included after the standard one, I have the chance to #define
+	// all of these to my own code.
+	//
+	// A #define is the only way, as redefinig the functions would cause linker errors.
+	
+	// These functions need to be #undef'ed, as their original definition 
+	// in devkitarm is done with #includes (ugh!)
+	#undef feof
+	#undef clearerr
+	//#undef getc
+	//#undef ferror
+	
+
+	//void 	std_fprintf(FILE* handle, const char* fmt, ...);	// used in common/util.cpp
+	//void 	std_fflush(FILE* handle);	// used in common/util.cpp
+
+	//char* 	std_fgets(char* str, int size, FILE* file);	// not used
+	//int 	std_getc(FILE* handle);	// not used
+	//char* 	std_getcwd(char* dir, int dunno);	// not used
+	//void 	std_cwd(char* dir);	// not used
+	//int 	std_ferror(FILE* handle);	// not used
+	
+	// Only functions used in the ScummVM source have been defined here!
+	#define fopen(name, mode) 					DS::std_fopen(name, mode)
+	#define fclose(handle) 						DS::std_fclose(handle)
+	#define fread(ptr, size, items, file)		DS::std_fread(ptr, size, items, file)
+	#define fwrite(ptr, size, items, file)		DS::std_fwrite(ptr, size, items, file)
+	#define feof(handle)						DS::std_feof(handle)
+	#define ftell(handle)						DS::std_ftell(handle)
+	#define fseek(handle, offset, whence)		DS::std_fseek(handle, offset, whence)
+	#define clearerr(handle)					DS::std_clearerr(handle)
+
+	//#define printf(fmt, ...)					consolePrintf(fmt, ##__VA_ARGS__)
+
+	//#define fprintf(file, fmt, ...)				{ char str[128]; sprintf(str, fmt, ##__VA_ARGS__); DS::std_fwrite(str, strlen(str), 1, file); }
+	//#define fflush(file)						DS::std_fflush(file)	// used in common/util.cpp
+
+	//#define fgets(str, size, file)				DS::std_fgets(str, size, file)	// not used
+	//#define getc(handle)						DS::std_getc(handle)	// not used
+	//#define getcwd(dir, dunno)					DS::std_getcwd(dir, dunno)	// not used
+	//#define ferror(handle)						DS::std_ferror(handle)	// not used
+
+#endif
+\ No newline at end of file
diff --git a/backends/file/posix/posix-file.cpp b/backends/file/posix/posix-file.cpp
new file mode 100644
index 0000000000..84c82fa5c5
--- /dev/null
+++ b/backends/file/posix/posix-file.cpp
@@ -0,0 +1,41 @@
+#include "backends/file/posix/posix-file.h"
+
+POSIXFile::POSIXFile() : BaseFile() {
+	//
+}
+
+POSIXFile::~POSIXFile() {
+	close();
+}
+
+void POSIXFile::_clearerr(FILE *stream) { 
+	clearerr(stream);
+}
+
+int POSIXFile::_fclose(FILE *stream) {
+	return fclose(stream);
+}
+
+int POSIXFile::_feof(FILE *stream) const {
+	return feof(stream);
+}
+FILE *POSIXFile::_fopen(const char * filename, const char * mode) {
+	printf("Opened a file!\n");
+	return fopen(filename, mode);
+}
+
+int POSIXFile::_fread(void *buffer, size_t obj_size, size_t num, FILE *stream) {
+	return fread(buffer, obj_size, num, stream);
+}
+
+int POSIXFile::_fseek(FILE * stream, long int offset, int origin) const {
+	return fseek(stream, offset, origin);
+}
+
+long POSIXFile::_ftell(FILE *stream) const {
+	return ftell(stream);
+}
+
+int POSIXFile::_fwrite(const void * ptr, size_t obj_size, size_t count, FILE * stream) {
+	return fwrite(ptr, obj_size, count, stream);
+}
diff --git a/backends/file/posix/posix-file.h b/backends/file/posix/posix-file.h
new file mode 100644
index 0000000000..00ce307df5
--- /dev/null
+++ b/backends/file/posix/posix-file.h
@@ -0,0 +1,50 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL: $
+ * $Id: $
+ */
+
+#ifndef BACKENDS_POSIX_FILE_H
+#define BACKENDS_POSIX_FILE_H
+
+#include "backends/file/base-file.cpp"
+
+/**
+ * Implements several POSIX specific file related functions used by the Common::File wrapper.
+ * 
+ * Parts of this class are documented in the base file class, BaseFile.
+ */
+class POSIXFile : public BaseFile {
+public:
+	POSIXFile();
+	~POSIXFile();
+protected:
+	void _clearerr(FILE *stream);
+	int _fclose(FILE *stream);
+	int _feof(FILE *stream) const;
+	FILE *_fopen(const char * filename, const char * mode);
+	int _fread(void *buffer, size_t obj_size, size_t num, FILE *stream);
+	int _fseek(FILE * stream, long int offset, int origin) const;
+	long _ftell(FILE *stream) const;
+	int _fwrite(const void * ptr, size_t obj_size, size_t count, FILE * stream);
+};
+
+#endif	//BACKENDS_POSIX_FILE_H
diff --git a/backends/file/ps2/ps2-file.cpp b/backends/file/ps2/ps2-file.cpp
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/backends/file/ps2/ps2-file.cpp
diff --git a/backends/file/ps2/ps2-file.h b/backends/file/ps2/ps2-file.h
new file mode 100644
index 0000000000..e7acfd801f
--- /dev/null
+++ b/backends/file/ps2/ps2-file.h
@@ -0,0 +1,24 @@
+#ifdef __PLAYSTATION2__
+	// for those replaced fopen/fread/etc functions
+	typedef unsigned long	uint64;
+	typedef signed long	int64;
+	#include "backends/platform/ps2/fileio.h"
+
+	#define fopen(a, b)			ps2_fopen(a, b)
+	#define fclose(a)			ps2_fclose(a)
+	#define fseek(a, b, c)			ps2_fseek(a, b, c)
+	#define ftell(a)			ps2_ftell(a)
+	#define feof(a)				ps2_feof(a)
+	#define fread(a, b, c, d)		ps2_fread(a, b, c, d)
+	#define fwrite(a, b, c, d)		ps2_fwrite(a, b, c, d)
+
+	//#define fprintf				ps2_fprintf	// used in common/util.cpp
+	//#define fflush(a)			ps2_fflush(a)	// used in common/util.cpp
+
+	//#define fgetc(a)			ps2_fgetc(a)	// not used
+	//#define fgets(a, b, c)			ps2_fgets(a, b, c)	// not used
+	//#define fputc(a, b)			ps2_fputc(a, b)	// not used
+	//#define fputs(a, b)			ps2_fputs(a, b)	// not used
+
+	//#define fsize(a)			ps2_fsize(a)	// not used -- and it is not a standard function either
+#endif
+\ No newline at end of file
diff --git a/backends/file/symbian/symbian-file.cpp b/backends/file/symbian/symbian-file.cpp
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/backends/file/symbian/symbian-file.cpp
diff --git a/backends/file/symbian/symbian-file.h b/backends/file/symbian/symbian-file.h
new file mode 100644
index 0000000000..7807a9355a
--- /dev/null
+++ b/backends/file/symbian/symbian-file.h
@@ -0,0 +1,29 @@
+#ifdef __SYMBIAN32__
+	#undef feof
+	#undef clearerr
+	
+	#define FILE void
+	
+	FILE* 	symbian_fopen(const char* name, const char* mode);
+	void 	symbian_fclose(FILE* handle);
+	size_t 	symbian_fread(const void* ptr, size_t size, size_t numItems, FILE* handle);
+	size_t 	symbian_fwrite(const void* ptr, size_t size, size_t numItems, FILE* handle);
+	bool 	symbian_feof(FILE* handle);
+	long int symbian_ftell(FILE* handle);
+	int 	symbian_fseek(FILE* handle, long int offset, int whence);
+	void 	symbian_clearerr(FILE* handle);
+
+	// Only functions used in the ScummVM source have been defined here!
+	#define fopen(name, mode) 					symbian_fopen(name, mode)
+	#define fclose(handle) 						symbian_fclose(handle)
+	#define fread(ptr, size, items, file)		symbian_fread(ptr, size, items, file)
+	#define fwrite(ptr, size, items, file)		symbian_fwrite(ptr, size, items, file)
+	#define feof(handle)						symbian_feof(handle)
+	#define ftell(handle)						symbian_ftell(handle)
+	#define fseek(handle, offset, whence)		symbian_fseek(handle, offset, whence)
+	#define clearerr(handle)					symbian_clearerr(handle)
+#endif
+	
+#if defined(UNIX) || defined(__SYMBIAN32__)
+#include <errno.h>
+#endif
+\ No newline at end of file