MERGE: Merge trunk to branch.

svn-id: r52564

40 files changed, 1621 insertions, 329 deletions

diff --git a/backends/fs/psp/psp-fs.cpp b/backends/fs/psp/psp-fs.cpp
index d72c5108dd..4857a385b7 100644
--- a/backends/fs/psp/psp-fs.cpp
+++ b/backends/fs/psp/psp-fs.cpp
@@ -247,11 +247,19 @@ AbstractFSNode *PSPFilesystemNode::getParent() const {
 }
 
 Common::SeekableReadStream *PSPFilesystemNode::createReadStream() {
-	return PSPIoStream::makeFromPath(getPath(), false);
+	const uint32 READ_BUFFER_SIZE = 1024;
+	
+	Common::SeekableReadStream *stream = PspIoStream::makeFromPath(getPath(), false);
+	
+	return new PspIoBufferedReadStream(stream, READ_BUFFER_SIZE, DisposeAfterUse::YES);
 }
 
 Common::WriteStream *PSPFilesystemNode::createWriteStream() {
-	return PSPIoStream::makeFromPath(getPath(), true);
+	const uint32 WRITE_BUFFER_SIZE = 1024;
+	
+	Common::WriteStream *stream = PspIoStream::makeFromPath(getPath(), true);
+	
+	return new PspIoBufferedWriteStream(stream, WRITE_BUFFER_SIZE, DisposeAfterUse::YES);
 }
 
 #endif //#ifdef __PSP__
diff --git a/backends/fs/psp/psp-stream.cpp b/backends/fs/psp/psp-stream.cpp
index 8843bfd2fb..3b0737ba63 100644
--- a/backends/fs/psp/psp-stream.cpp
+++ b/backends/fs/psp/psp-stream.cpp
@@ -58,58 +58,53 @@ void printBuffer(byte *ptr, uint32 len) {
 }
 #endif
 
+// Class PspIoStream ------------------------------------------------
 
-PSPIoStream::PSPIoStream(const Common::String &path, bool writeMode)
-		: _handle(0), _path(path), _writeMode(writeMode),
-		  _ferror(false), _pos(0),
-		  _physicalPos(0), _fileSize(0), _inCache(false), _eos(false),
-		  _cacheStartOffset(-1), _cache(0),
-		  _errorSuspend(0), _errorSource(0),
-		  _errorPos(0), _errorHandle(0), _suspendCount(0) {
+PspIoStream::PspIoStream(const Common::String &path, bool writeMode)
+		: _handle(0), _path(path), _fileSize(0), _writeMode(writeMode),
+		  _physicalPos(0), _pos(0), _eos(false),	_error(false), 
+		  _errorSuspend(0), _errorSource(0), _errorPos(0), _errorHandle(0), _suspendCount(0) {
 	DEBUG_ENTER_FUNC();
 
-	// assert(!path.empty());	// do we need this?
+	//assert(!path.empty());	// do we need this?
 }
 
-PSPIoStream::~PSPIoStream() {
+PspIoStream::~PspIoStream() {
 	DEBUG_ENTER_FUNC();
 
 	if (PowerMan.beginCriticalSection())
-		PSP_DEBUG_PRINT_FUNC("Suspended\n");
-
-	PowerMan.unregisterForSuspend(this); // Unregister with powermanager to be suspended
-									  // Must do this before fclose() or resume() will reopen.
-
-	sceIoClose(_handle);		  	  // We don't need a critical section. Worst case, the handle gets closed on its own
+		PSP_DEBUG_PRINT_FUNC("suspended\n");
+		
+	PowerMan.unregisterForSuspend(this); 			// Unregister with powermanager to be suspended
+													// Must do this before fclose() or resume() will reopen.
+	sceIoClose(_handle);
 	
-	if (_cache)
-		free(_cache);
-
 	PowerMan.endCriticalSection();
 }
 
 /* Function to open the file pointed to by the path.
  *
  */
-void *PSPIoStream::open() {
+void *PspIoStream::open() {
 	DEBUG_ENTER_FUNC();
+	
 	if (PowerMan.beginCriticalSection()) {
-		// No need to open. Just return the _handle resume() already opened.
-		PSP_DEBUG_PRINT_FUNC("Suspended\n");
+		// No need to open? Just return the _handle resume() already opened
+		PSP_DEBUG_PRINT_FUNC("suspended\n");
 	}
 
-	_handle = sceIoOpen(_path.c_str(), _writeMode ? PSP_O_RDWR | PSP_O_CREAT : PSP_O_RDONLY, 0777); 	// open
-
-	if (_handle) {
-		// Get the file size. This way is much faster than going to the end of the file and back
-		SceIoStat stat;
-		sceIoGetstat(_path.c_str(), &stat);
-		_fileSize = *((uint32 *)(void *)&stat.st_size);	// 4GB file is big enough for us
-		PSP_DEBUG_PRINT("%s filesize = %d\n", _path.c_str(), _fileSize);
+	_handle = sceIoOpen(_path.c_str(), _writeMode ? PSP_O_WRONLY | PSP_O_CREAT | PSP_O_TRUNC : PSP_O_RDONLY, 0777);
+	if (!_handle) {
+		_error = true;
+		_handle = NULL;
+	}	
 	
-		// Allocate the cache
-		_cache = (char *)memalign(64, CACHE_SIZE);
-	}
+	// Get the file size. This way is much faster than going to the end of the file and back
+	SceIoStat stat;
+	sceIoGetstat(_path.c_str(), &stat);
+	_fileSize = *((uint32 *)(void *)&stat.st_size);	// 4GB file (32 bits) is big enough for us
+	
+	PSP_DEBUG_PRINT("%s filesize[%d]\n", _path.c_str(), _fileSize);
 
 	PowerMan.registerForSuspend(this);	 // Register with the powermanager to be suspended
 
@@ -118,35 +113,48 @@ void *PSPIoStream::open() {
 	return (void *)_handle;
 }
 
-bool PSPIoStream::err() const {
+bool PspIoStream::err() const {
 	DEBUG_ENTER_FUNC();
 	
-	if (_ferror)	// We dump since no printing to screen with suspend
-		PSP_ERROR("mem_ferror[%d], source[%d], suspend error[%d], pos[%d], \
-		_errorPos[%d], _errorHandle[%p], suspendCount[%d]\n",
-		          _ferror, _errorSource, _errorSuspend, _pos,
+	if (_error)	// We dump since no printing to screen with suspend callback
+		PSP_ERROR("mem_error[%d], source[%d], suspend error[%d], pos[%d],"
+				  "_errorPos[%d], _errorHandle[%p], suspendCount[%d]\n",
+		          _error, _errorSource, _errorSuspend, _pos,
 				  _errorPos, _errorHandle, _suspendCount);
 
-	return _ferror;
+	return _error;
 }
 
-void PSPIoStream::clearErr() {
-	_ferror = false;
+void PspIoStream::clearErr() {
+	_error = false;
 }
 
-bool PSPIoStream::eos() const {
+bool PspIoStream::eos() const {
 	return _eos;
 }
 
-int32 PSPIoStream::pos() const {
+int32 PspIoStream::pos() const {
 	return _pos;
 }
 
-int32 PSPIoStream::size() const {
+int32 PspIoStream::size() const {
 	return _fileSize;
 }
 
-bool PSPIoStream::seek(int32 offs, int whence) {
+bool PspIoStream::physicalSeekFromCur(int32 offset) {
+	
+	int ret = sceIoLseek32(_handle, offset, PSP_SEEK_CUR);
+	
+	if (ret < 0) {
+		_error = true;
+		PSP_ERROR("failed to seek in file[%s] to [%x]. Error[%x]\n", _path.c_str(), offset, ret);
+		return false;
+	}
+	_physicalPos += offset;
+	return true;
+}
+
+bool PspIoStream::seek(int32 offs, int whence) {
 	DEBUG_ENTER_FUNC();
 	PSP_DEBUG_PRINT_FUNC("offset[0x%x], whence[%d], _pos[0x%x], _physPos[0x%x]\n", offs, whence, _pos, _physicalPos);
 	_eos = false;
@@ -157,195 +165,115 @@ bool PSPIoStream::seek(int32 offs, int whence) {
 		posToSearchFor = _pos;
 		break;
 	case SEEK_END:
-		posToSearchFor = _fileSize;	// unsure. Does it take us here or to EOS - 1?
+		posToSearchFor = _fileSize;
 		break;
 	}
 	posToSearchFor += offs;
-	
+
 	// Check for bad values
 	if (posToSearchFor < 0) {
-		_ferror = true;
+		_error = true;
 		return false;
-	}
-	
-	if (posToSearchFor > _fileSize) {
-		_ferror = true;
+	} else if (posToSearchFor > _fileSize) {
+		_error = true;
 		_eos = true;
 		return false;
 	}
 	
-	// See if we can find it in cache
-	if (isOffsetInCache(posToSearchFor)) {
-		PSP_DEBUG_PRINT("seek offset[0x%x] found in cache. Cache starts[0x%x]\n", posToSearchFor, _cacheStartOffset);
-		_inCache = true;		
-	} else {	// not in cache
-		_inCache = false;		
-	}	
 	_pos = posToSearchFor;
+	
 	return true;
 }
 
-uint32 PSPIoStream::read(void *ptr, uint32 len) {
+uint32 PspIoStream::read(void *ptr, uint32 len) {
 	DEBUG_ENTER_FUNC();
-	PSP_DEBUG_PRINT_FUNC("filename[%s], len[0x%x], ptr[%p]\n", _path.c_str(), len, ptr);
+	PSP_DEBUG_PRINT_FUNC("filename[%s], len[0x%x], ptr[%p], _pos[%x], _physPos[%x]\n", _path.c_str(), len, ptr, _pos, _physicalPos);
 
-	if (_ferror || _eos)
+	if (_error || _eos || len <= 0)
 		return 0;
-		
-	byte *destPtr = (byte *)ptr;
-	uint32 lenFromFile = len;		// how much we read from the actual file
-	uint32 lenFromCache = 0;		// how much we read from cache
+
 	uint32 lenRemainingInFile = _fileSize - _pos;
-	
-	if (lenFromFile > lenRemainingInFile) {
-		lenFromFile = lenRemainingInFile;
+
+	// check for getting EOS
+	if (len > lenRemainingInFile) {
+		len = lenRemainingInFile;
 		_eos = true;
 	}	
-	
-	// Are we in cache?
-	if (_inCache && isCacheValid()) {
-		uint32 offsetInCache = _pos - _cacheStartOffset;
-		// We can read at most what's in the cache or the remaining size of the file
-		lenFromCache = MIN2(lenFromFile, CACHE_SIZE - offsetInCache); // unsure
-		
-		PSP_DEBUG_PRINT("reading 0x%x bytes from cache to %p. pos[0x%x] physPos[0x%x] cacheStart[0x%x]\n", lenFromCache, destPtr, _pos, _physicalPos, _cacheStartOffset);
-		
-		memcpy(destPtr, &_cache[offsetInCache], lenFromCache);
-		_pos += lenFromCache;		
-		
-		if (lenFromCache < lenFromFile) {	// there's more to copy from the file
-			lenFromFile -= lenFromCache;
-			lenRemainingInFile -= lenFromCache;	// since we moved pos
-			destPtr += lenFromCache;
-		} else {							// we're done
-#ifdef DEBUG_BUFFERS
-			printBuffer((byte *)ptr, len);
-#endif			
-			
-			return lenFromCache;			// how much we actually read
-		}		
-	}
 
 	if (PowerMan.beginCriticalSection())
-		PSP_DEBUG_PRINT_FUNC("Suspended\n");
-	
+		PSP_DEBUG_PRINT_FUNC("suspended\n");
 	
-	synchronizePhysicalPos();	// we need to update our physical position
+	// check if we need to seek
+	if (_pos != _physicalPos)
+		PSP_DEBUG_PRINT("seeking from %x to %x\n", _physicalPos, _pos);
+		if (!physicalSeekFromCur(_pos - _physicalPos)) {
+			_error = true;
+			return 0;
+		}	
 	
-	if (lenFromFile <= MIN_READ_SIZE) {	// We load the cache in case the read is small enough
-		// This optimization is based on the principle that reading 1 byte is as expensive as 1000 bytes
-		uint32 lenToCopyToCache = MIN2((uint32)MIN_READ_SIZE, lenRemainingInFile); // at most remaining file size
-		
-		PSP_DEBUG_PRINT("filling cache with 0x%x bytes from physicalPos[0x%x]. cacheStart[0x%x], pos[0x%x], fileSize[0x%x]\n", lenToCopyToCache, _physicalPos, _cacheStartOffset, _pos, _fileSize);
-		
-		int ret = sceIoRead(_handle, _cache, lenToCopyToCache);
-		if (ret != (int)lenToCopyToCache) {
-			PSP_ERROR("in filling cache, failed to get 0x%x bytes. Only got 0x%x\n", lenToCopyToCache, ret);
-			_ferror = true;
-		}
-		_cacheStartOffset = _physicalPos;
-		_inCache = true;
-		
-		_physicalPos += ret;
-		
-		PSP_DEBUG_PRINT("copying 0x%x bytes from cache to %p\n", lenFromFile, destPtr);
-		
-		// Copy to the destination buffer from cache
-		memcpy(destPtr, _cache, lenFromFile);
-		_pos += lenFromFile;
-		
-	} else {	// Too big for cache. No caching
-		PSP_DEBUG_PRINT("reading 0x%x bytes from file to %p. Pos[0x%x], physPos[0x%x]\n", lenFromFile, destPtr, _pos, _physicalPos);
-		int ret = sceIoRead(_handle, destPtr, lenFromFile);
-
-		_physicalPos += ret;	// Update pos
-		_pos = _physicalPos;
-
-		if (ret != (int)lenFromFile) {	// error
-			PSP_ERROR("fread returned [0x%x] instead of len[0x%x]\n", ret, lenFromFile);
-			_ferror = true;
-			_errorSource = 4;			
-		}
-		_inCache = false;
-	}
+	int ret = sceIoRead(_handle, ptr, len);
 
 	PowerMan.endCriticalSection();
-
-#ifdef DEBUG_BUFFERS
-	printBuffer((byte *)ptr, len);
-#endif	
-		
-	return lenFromCache + lenFromFile;		// total of what was copied
-}
-
-// TODO: Test if seeking backwards/forwards has any effect on performance
-inline bool PSPIoStream::synchronizePhysicalPos() {
-	if (_pos != _physicalPos) {
-		if (sceIoLseek32(_handle, _pos - _physicalPos, PSP_SEEK_CUR) < 0) {
-			_ferror = true;
-			return false;
-		}
-		_physicalPos = _pos;	
-	}
 	
-	return true;
-}
-
-inline bool PSPIoStream::isOffsetInCache(uint32 offset) {
-	if (_cacheStartOffset != -1 && 
-		offset >= (uint32)_cacheStartOffset && 
-		offset < (uint32)(_cacheStartOffset + CACHE_SIZE))
-		return true;
-	return false;
-}
+	_physicalPos += ret;	// Update position
+	_pos = _physicalPos;
+	
+	if (ret != (int)len) {	// error
+		PSP_ERROR("sceIoRead returned [0x%x] instead of len[0x%x]\n", ret, len);
+		_error = true;
+		_errorSource = 4;			
+	}
+	return ret;
+}	
 
-uint32 PSPIoStream::write(const void *ptr, uint32 len) {
+uint32 PspIoStream::write(const void *ptr, uint32 len) {
 	DEBUG_ENTER_FUNC();
-	// Check if we can access the file
-	if (PowerMan.beginCriticalSection())
-		PSP_DEBUG_PRINT_FUNC("Suspended\n");
+	PSP_DEBUG_PRINT_FUNC("filename[%s], len[0x%x], ptr[%p], _pos[%x], _physPos[%x]\n", _path.c_str(), len, ptr, _pos, _physicalPos);
 
-	PSP_DEBUG_PRINT_FUNC("filename[%s], len[0x%x]\n", _path.c_str(), len);
-
-	if (!len || _ferror)	// we actually get calls with len=0
+	if (!len || _error)		// we actually get some calls with len == 0!
 		return 0;
+
+	_eos = false;			// we can't have eos with write
 		
-	_eos = false;	// we can't have eos with write
-	synchronizePhysicalPos();
+	if (PowerMan.beginCriticalSection())
+		PSP_DEBUG_PRINT_FUNC("suspended\n");
+
+	// check if we need to seek
+	if (_pos != _physicalPos)
+		if (!physicalSeekFromCur(_pos - _physicalPos)) {
+			_error = true;
+			return 0;
+		}
 	
 	int ret = sceIoWrite(_handle, ptr, len);
-
-	// If we're making the file bigger, adjust the size
-	if (_physicalPos + ret > _fileSize)
-		_fileSize = _physicalPos + ret;
-
-	_physicalPos += ret;
-	_pos = _physicalPos;
-	_inCache = false;
-	_cacheStartOffset = -1;	// invalidate cache
-
-	if (ret != (int)len) {	// Set error
-		_ferror = true;
+	
+	PowerMan.endCriticalSection();
+	
+	if (ret != (int)len) {
+		_error = true;
 		_errorSource = 5;
-		PSP_ERROR("fwrite returned[0x%x] instead of len[0x%x]\n", ret, len);
+		PSP_ERROR("sceIoWrite returned[0x%x] instead of len[0x%x]\n", ret, len);
 	}
 
-	PowerMan.endCriticalSection();
-
+	_physicalPos += ret;
+	_pos = _physicalPos;
+	
+	if (_pos > _fileSize)
+		_fileSize = _pos;	
+	
 	return ret;
 }
 
-bool PSPIoStream::flush() {
-
+bool PspIoStream::flush() {
 	return true;
 }
 
 // For the PSP, since we're building in suspend support, we moved opening
-// the actual file to an open function since we need an actual PSPIoStream object to suspend.
+// the actual file to an open function since we need an actual PspIoStream object to suspend.
 //
-PSPIoStream *PSPIoStream::makeFromPath(const Common::String &path, bool writeMode) {
+PspIoStream *PspIoStream::makeFromPath(const Common::String &path, bool writeMode) {
 	DEBUG_ENTER_FUNC();
-	PSPIoStream *stream = new PSPIoStream(path, writeMode);
+	PspIoStream *stream = new PspIoStream(path, writeMode);
 
 	if (stream->open() <= 0) {
 		delete stream;
@@ -359,7 +287,7 @@ PSPIoStream *PSPIoStream::makeFromPath(const Common::String &path, bool writeMod
  *  Function to suspend the IO stream (called by PowerManager)
  *  we can have no output here
  */
-int PSPIoStream::suspend() {
+int PspIoStream::suspend() {
 	DEBUG_ENTER_FUNC();
 	_suspendCount++;
 
@@ -380,7 +308,7 @@ int PSPIoStream::suspend() {
 /*
  *  Function to resume the IO stream (called by Power Manager)
  */
-int PSPIoStream::resume() {
+int PspIoStream::resume() {
 	DEBUG_ENTER_FUNC();
 	int ret = 0;
 	_suspendCount--;
@@ -388,15 +316,15 @@ int PSPIoStream::resume() {
 	// We reopen our file descriptor
 	_handle = sceIoOpen(_path.c_str(), _writeMode ? PSP_O_RDWR | PSP_O_CREAT : PSP_O_RDONLY, 0777); 	// open
 	if (_handle <= 0) {
-		PSP_ERROR("Couldn't reopen file %s\n", _path.c_str());
+		_errorSuspend = ResumeError;
+		_errorPos = _pos;
 	}
 
-	// Resume our previous position
+	// Resume our previous position if needed
 	if (_handle > 0 && _pos > 0) {
 		ret = sceIoLseek32(_handle, _pos, PSP_SEEK_SET);
 		
 		_physicalPos = _pos;
-		_inCache = false;
 
 		if (ret < 0) {		// Check for problem
 			_errorSuspend = ResumeError;
@@ -407,5 +335,4 @@ int PSPIoStream::resume() {
 	return ret;
 }
 
-
 #endif /* __PSP__ */
diff --git a/backends/fs/psp/psp-stream.h b/backends/fs/psp/psp-stream.h
index ca9d40c720..be3a1220de 100644
--- a/backends/fs/psp/psp-stream.h
+++ b/backends/fs/psp/psp-stream.h
@@ -33,18 +33,33 @@
 #include "common/stream.h"
 #include "common/str.h"
 
-/*
+class PspIoBufferedReadStream : public Common::BufferedSeekableReadStream {
+public:
+	PspIoBufferedReadStream(SeekableReadStream *parentStream, uint32 bufSize, DisposeAfterUse::Flag disposeParentStream = DisposeAfterUse::YES) : BufferedSeekableReadStream(parentStream, bufSize, disposeParentStream) {}
+protected:	
+	virtual void allocBuf(uint32 bufSize) { _buf = (byte *)memalign(64, bufSize); }	// want 64 byte alignment for cache
+	virtual void deallocBuf() { free(_buf); }	
+};
+
+class PspIoBufferedWriteStream : public Common::BufferedWriteStream {
+public:
+	PspIoBufferedWriteStream(WriteStream *parentStream, uint32 bufSize, DisposeAfterUse::Flag disposeParentStream = DisposeAfterUse::YES) : BufferedWriteStream(parentStream, bufSize, disposeParentStream) {}
+protected:	
+	virtual void allocBuf(uint32 bufSize) { _buf = (byte *)memalign(64, bufSize); }
+	virtual void deallocBuf() { free(_buf); }
+};
+
+/**
  *  Class to handle special suspend/resume needs of PSP IO Streams
  */
-class PSPIoStream : public Common::SeekableReadStream, public Common::WriteStream, public Common::NonCopyable, public Suspendable {
+class PspIoStream : public Common::SeekableReadStream, public Common::WriteStream, public Common::NonCopyable, public Suspendable {
 protected:
 	SceUID _handle;		// file handle
 	Common::String _path;
 	int _fileSize;
 	bool _writeMode;	// for resuming in the right mode
-	int _physicalPos;	// position in the real file
+	int _physicalPos;	// physical position in file
 	int _pos;			// position. Sometimes virtual
-	bool _inCache;		// whether we're in cache (virtual) mode
 	bool _eos;			// EOS flag
 	
 	enum {
@@ -52,36 +67,26 @@ protected:
 		ResumeError = 3
 	};
 
-	enum {
-		CACHE_SIZE = 1024,
-		MIN_READ_SIZE = 1024	// reading less than 1024 takes exactly the same time as 1024
-	};
-	
-	// For caching
-	char *_cache;
-	int _cacheStartOffset;		// starting offset of the cache. -1 when cache is invalid
-	
-	mutable int _ferror;		// file error state
+	// debug stuff
+	mutable int _error;		// file error state
 	int _errorSuspend;			// for debugging
 	mutable int _errorSource;
 	int _errorPos;
 	SceUID _errorHandle;
 	int _suspendCount;
-
-	bool synchronizePhysicalPos();		// synchronize the physical and virtual positions
-	bool isOffsetInCache(uint32 pos);	// check if an offset is found in cache
-	bool isCacheValid() { return _cacheStartOffset != -1; }
+	
+	bool physicalSeekFromCur(int32 offset);
 	
 public:
 
 	/**
 	 * Given a path, invoke fopen on that path and wrap the result in a
-	 * PSPIoStream instance.
+	 * PspIoStream instance.
 	 */
-	static PSPIoStream *makeFromPath(const Common::String &path, bool writeMode);
+	static PspIoStream *makeFromPath(const Common::String &path, bool writeMode);
 
-	PSPIoStream(const Common::String &path, bool writeMode);
-	virtual ~PSPIoStream();
+	PspIoStream(const Common::String &path, bool writeMode);
+	virtual ~PspIoStream();
 
 	void * open();		// open the file pointed to by the file path
 
@@ -96,7 +101,8 @@ public:
 	virtual int32 size() const;
 	virtual bool seek(int32 offs, int whence = SEEK_SET);
 	virtual uint32 read(void *dataPtr, uint32 dataSize);
-
+	
+	// for suspending
 	int suspend();		/* Suspendable interface (power manager) */
 	int resume();		/* " " */
 };
diff --git a/backends/platform/dingux/dingux-events.cpp b/backends/platform/dingux/dingux-events.cpp
new file mode 100644
index 0000000000..b6070f68ca
--- /dev/null
+++ b/backends/platform/dingux/dingux-events.cpp
@@ -0,0 +1,215 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "backends/platform/dingux/dingux.h"
+
+#include "graphics/scaler/aspect.h"	// for aspect2Real
+
+#if defined (DINGUX)
+
+#define PAD_UP    SDLK_UP
+#define PAD_DOWN  SDLK_DOWN
+#define PAD_LEFT  SDLK_LEFT
+#define PAD_RIGHT SDLK_RIGHT
+#define BUT_A     SDLK_LCTRL
+#define BUT_B     SDLK_LALT
+#define BUT_X     SDLK_SPACE
+#define BUT_Y     SDLK_LSHIFT
+#define BUT_SELECT   SDLK_ESCAPE
+#define BUT_START    SDLK_RETURN
+#define TRIG_L    SDLK_TAB
+#define TRIG_R    SDLK_BACKSPACE
+
+static int mapKey(SDLKey key, SDLMod mod, Uint16 unicode) {
+	if (key >= SDLK_F1 && key <= SDLK_F9) {
+		return key - SDLK_F1 + Common::ASCII_F1;
+	} else if (key >= SDLK_KP0 && key <= SDLK_KP9) {
+		return key - SDLK_KP0 + '0';
+	} else if (key >= SDLK_UP && key <= SDLK_PAGEDOWN) {
+		return key;
+	} else if (unicode) {
+		return unicode;
+	} else if (key >= 'a' && key <= 'z' && (mod & KMOD_SHIFT)) {
+		return key & ~0x20;
+	} else if (key >= SDLK_NUMLOCK && key <= SDLK_EURO) {
+		return 0;
+	}
+	return key;
+}
+
+bool OSystem_SDL_Dingux::remapKey(SDL_Event &ev, Common::Event &event) {
+	if (ev.key.keysym.sym == PAD_UP) {
+		if (ev.type == SDL_KEYDOWN) {
+			_km.y_vel = -1;
+			_km.y_down_count = 1;
+		} else {
+			_km.y_vel = 0;
+			_km.y_down_count = 0;
+		}
+
+		event.type = Common::EVENT_MOUSEMOVE;
+		fillMouseEvent(event, _km.x, _km.y);
+
+		return true;
+	} else if (ev.key.keysym.sym == PAD_DOWN) {
+		if (ev.type == SDL_KEYDOWN) {
+			_km.y_vel = 1;
+			_km.y_down_count = 1;
+		} else {
+			_km.y_vel = 0;
+			_km.y_down_count = 0;
+		}
+
+		event.type = Common::EVENT_MOUSEMOVE;
+		fillMouseEvent(event, _km.x, _km.y);
+
+		return true;
+	} else if (ev.key.keysym.sym == PAD_LEFT) {
+		if (ev.type == SDL_KEYDOWN) {
+			_km.x_vel = -1;
+			_km.x_down_count = 1;
+		} else {
+			_km.x_vel = 0;
+			_km.x_down_count = 0;
+		}
+
+		event.type = Common::EVENT_MOUSEMOVE;
+		fillMouseEvent(event, _km.x, _km.y);
+
+		return true;
+	} else if (ev.key.keysym.sym == PAD_RIGHT) {
+		if (ev.type == SDL_KEYDOWN) {
+			_km.x_vel = 1;
+			_km.x_down_count = 1;
+		} else {
+			_km.x_vel = 0;
+			_km.x_down_count = 0;
+		}
+
+		event.type = Common::EVENT_MOUSEMOVE;
+		fillMouseEvent(event, _km.x, _km.y);
+
+		return true;
+	} else if (ev.key.keysym.sym == BUT_Y) { // left mouse button
+		if (ev.type == SDL_KEYDOWN) {
+			event.type = Common::EVENT_LBUTTONDOWN;
+		} else {
+			event.type = Common::EVENT_LBUTTONUP;
+		}
+
+		fillMouseEvent(event, _km.x, _km.y);
+
+		return true;
+	} else if (ev.key.keysym.sym == BUT_B) { // right mouse button
+		if (ev.type == SDL_KEYDOWN) {
+			event.type = Common::EVENT_RBUTTONDOWN;
+		} else {
+			event.type = Common::EVENT_RBUTTONUP;
+		}
+
+		fillMouseEvent(event, _km.x, _km.y);
+
+		return true;
+	} else if (ev.key.keysym.sym == BUT_X) { // '.' skip dialogue
+		ev.key.keysym.sym = SDLK_PERIOD;
+		ev.key.keysym.mod = (SDLMod)0;
+		ev.key.keysym.unicode = '.';
+	} else if (ev.key.keysym.sym == TRIG_L) { // global menu
+		ev.key.keysym.sym = SDLK_F5;
+		event.kbd.keycode = Common::KEYCODE_F5;
+		event.kbd.ascii = Common::ASCII_F5;
+		event.kbd.flags = Common::KBD_CTRL;
+
+		if (ev.type == SDL_KEYDOWN) {
+			event.type = Common::EVENT_KEYDOWN;
+		} else {
+			event.type = Common::EVENT_KEYUP;
+		}
+
+		return true;
+	} else if (ev.key.keysym.sym == BUT_A) { // virtual keyboard
+		ev.key.keysym.sym = SDLK_0;
+
+		event.kbd.keycode = Common::KEYCODE_0;
+		event.kbd.ascii = '0';
+		event.kbd.flags = 0;
+
+		if (ev.type == SDL_KEYDOWN) {
+			event.type = Common::EVENT_KEYDOWN;
+		} else {
+			event.type = Common::EVENT_KEYUP;
+		}
+
+		return true;
+	} else if (ev.key.keysym.sym == BUT_SELECT) { // virtual keyboard
+		ev.key.keysym.sym = SDLK_F7;
+
+	} else if (ev.key.keysym.sym == BUT_START) { // F5, menu in some games
+		ev.key.keysym.sym = SDLK_F5;
+
+	}  else if (ev.key.keysym.sym == TRIG_R) { // ESC
+		ev.key.keysym.sym = SDLK_ESCAPE;
+	} else {
+		event.kbd.keycode = (Common::KeyCode)ev.key.keysym.sym;
+		event.kbd.ascii = mapKey(ev.key.keysym.sym, ev.key.keysym.mod, ev.key.keysym.unicode);
+	}
+
+	return false;
+}
+
+void OSystem_SDL_Dingux::fillMouseEvent(Common::Event &event, int x, int y) {
+	if (_videoMode.mode == GFX_HALF && !_overlayVisible) {
+		event.mouse.x = x * 2;
+		event.mouse.y = y * 2;
+	} else {
+		event.mouse.x = x;
+		event.mouse.y = y;
+	}
+
+	// Update the "keyboard mouse" coords
+	_km.x = x;
+	_km.y = y;
+
+	// Adjust for the screen scaling
+	if (!_overlayVisible) {
+		event.mouse.x /= _videoMode.scaleFactor;
+		event.mouse.y /= _videoMode.scaleFactor;
+		if (_videoMode.aspectRatioCorrection)
+			event.mouse.y = aspect2Real(event.mouse.y);
+	}
+}
+
+void OSystem_SDL_Dingux::warpMouse(int x, int y) {
+	if (_mouseCurState.x != x || _mouseCurState.y != y) {
+		if (_videoMode.mode == GFX_HALF && !_overlayVisible) {
+			x = x / 2;
+			y = y / 2;
+		}
+	}
+	OSystem_SDL::warpMouse(x, y);
+}
+
+#endif
+
diff --git a/backends/platform/dingux/dingux-graphics.cpp b/backends/platform/dingux/dingux-graphics.cpp
new file mode 100644
index 0000000000..bbd4a58636
--- /dev/null
+++ b/backends/platform/dingux/dingux-graphics.cpp
@@ -0,0 +1,468 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "backends/platform/dingux/dingux.h"
+
+#include "common/mutex.h"
+#include "graphics/scaler.h"
+#include "graphics/scaler/aspect.h"
+#include "graphics/scaler/downscaler.h"
+#include "graphics/surface.h"
+
+#if defined (DINGUX)
+
+static const OSystem::GraphicsMode s_supportedGraphicsModes[] = {
+	{"1x", "Standard", GFX_NORMAL},
+	{0, 0, 0}
+};
+
+int OSystem_SDL_Dingux::getDefaultGraphicsMode() const {
+	return GFX_NORMAL;
+}
+
+const OSystem::GraphicsMode *OSystem_SDL_Dingux::getSupportedGraphicsModes() const {
+	return s_supportedGraphicsModes;
+}
+
+bool OSystem_SDL_Dingux::setGraphicsMode(int mode) {
+	Common::StackLock lock(_graphicsMutex);
+
+	assert(_transactionMode == kTransactionActive);
+
+	if (_oldVideoMode.setup && _oldVideoMode.mode == mode)
+		return true;
+
+	int newScaleFactor = 1;
+
+	switch (mode) {
+	case GFX_NORMAL:
+		newScaleFactor = 1;
+		break;
+	case GFX_HALF:
+		newScaleFactor = 1;
+		break;
+	default:
+		warning("unknown gfx mode %d", mode);
+		return false;
+	}
+
+	_transactionDetails.normal1xScaler = (mode == GFX_NORMAL);
+	if (_oldVideoMode.setup && _oldVideoMode.scaleFactor != newScaleFactor)
+		_transactionDetails.needHotswap = true;
+
+	_transactionDetails.needUpdatescreen = true;
+
+	_videoMode.mode = mode;
+	_videoMode.scaleFactor = newScaleFactor;
+
+	return true;
+}
+
+void OSystem_SDL_Dingux::setGraphicsModeIntern() {
+	Common::StackLock lock(_graphicsMutex);
+	ScalerProc *newScalerProc = 0;
+
+	switch (_videoMode.mode) {
+	case GFX_NORMAL:
+		newScalerProc = Normal1x;
+		break;
+	case GFX_HALF:
+		newScalerProc = DownscaleAllByHalf;
+		break;
+
+	default:
+		error("Unknown gfx mode %d", _videoMode.mode);
+	}
+
+	_scalerProc = newScalerProc;
+
+	if (!_screen || !_hwscreen)
+		return;
+
+	// Blit everything to the screen
+	_forceFull = true;
+
+	// Even if the old and new scale factors are the same, we may have a
+	// different scaler for the cursor now.
+	blitCursor();
+}
+
+void OSystem_SDL_Dingux::initSize(uint w, uint h) {
+	assert(_transactionMode == kTransactionActive);
+
+	// Avoid redundant res changes
+	if ((int)w == _videoMode.screenWidth && (int)h == _videoMode.screenHeight)
+		return;
+
+	_videoMode.screenWidth = w;
+	_videoMode.screenHeight = h;
+	if (w > 320 || h > 240) {
+		setGraphicsMode(GFX_HALF);
+		setGraphicsModeIntern();
+		toggleMouseGrab();
+	}
+
+	_transactionDetails.sizeChanged = true;
+}
+
+void OSystem_SDL_Dingux::drawMouse() {
+	if (!_mouseVisible || !_mouseSurface) {
+		_mouseBackup.x = _mouseBackup.y = _mouseBackup.w = _mouseBackup.h = 0;
+		return;
+	}
+
+	SDL_Rect dst;
+	int scale;
+	int hotX, hotY;
+
+	if (_videoMode.mode == GFX_HALF && !_overlayVisible) {
+		dst.x = _mouseCurState.x / 2;
+		dst.y = _mouseCurState.y / 2;
+	} else {
+		dst.x = _mouseCurState.x;
+		dst.y = _mouseCurState.y;
+	}
+
+	if (!_overlayVisible) {
+		scale = _videoMode.scaleFactor;
+		dst.w = _mouseCurState.vW;
+		dst.h = _mouseCurState.vH;
+		hotX = _mouseCurState.vHotX;
+		hotY = _mouseCurState.vHotY;
+	} else {
+		scale = 1;
+		dst.w = _mouseCurState.rW;
+		dst.h = _mouseCurState.rH;
+		hotX = _mouseCurState.rHotX;
+		hotY = _mouseCurState.rHotY;
+	}
+
+	// The mouse is undrawn using virtual coordinates, i.e. they may be
+	// scaled and aspect-ratio corrected.
+
+	_mouseBackup.x = dst.x - hotX;
+	_mouseBackup.y = dst.y - hotY;
+	_mouseBackup.w = dst.w;
+	_mouseBackup.h = dst.h;
+
+	// We draw the pre-scaled cursor image, so now we need to adjust for
+	// scaling, shake position and aspect ratio correction manually.
+
+	if (!_overlayVisible) {
+		dst.y += _currentShakePos;
+	}
+
+	if (_videoMode.aspectRatioCorrection && !_overlayVisible)
+		dst.y = real2Aspect(dst.y);
+
+	dst.x = scale * dst.x - _mouseCurState.rHotX;
+	dst.y = scale * dst.y - _mouseCurState.rHotY;
+	dst.w = _mouseCurState.rW;
+	dst.h = _mouseCurState.rH;
+
+	// Note that SDL_BlitSurface() and addDirtyRect() will both perform any
+	// clipping necessary
+
+	if (SDL_BlitSurface(_mouseSurface, NULL, _hwscreen, &dst) != 0)
+		error("SDL_BlitSurface failed: %s", SDL_GetError());
+
+	// The screen will be updated using real surface coordinates, i.e.
+	// they will not be scaled or aspect-ratio corrected.
+	addDirtyRect(dst.x, dst.y, dst.w, dst.h, true);
+}
+
+void OSystem_SDL_Dingux::undrawMouse() {
+	const int x = _mouseBackup.x;
+	const int y = _mouseBackup.y;
+
+	// When we switch bigger overlay off mouse jumps. Argh!
+	// This is intended to prevent undrawing offscreen mouse
+	if (!_overlayVisible && (x >= _videoMode.screenWidth || y >= _videoMode.screenHeight))
+		return;
+
+	if (_mouseBackup.w != 0 && _mouseBackup.h != 0) {
+		if (_videoMode.mode == GFX_HALF && !_overlayVisible) {
+			addDirtyRect(x*2, y*2, _mouseBackup.w*2, _mouseBackup.h*2);
+		} else {
+			addDirtyRect(x, y, _mouseBackup.w, _mouseBackup.h);
+		}
+	}
+}
+
+void OSystem_SDL_Dingux::internUpdateScreen() {
+	SDL_Surface *srcSurf, *origSurf;
+	int height, width;
+	ScalerProc *scalerProc;
+	int scale1;
+
+#if defined (DEBUG) && ! defined(_WIN32_WCE) // definitions not available for non-DEBUG here. (needed this to compile in SYMBIAN32 & linux?)
+	assert(_hwscreen != NULL);
+	assert(_hwscreen->map->sw_data != NULL);
+#endif
+
+	// If the shake position changed, fill the dirty area with blackness
+	if (_currentShakePos != _newShakePos) {
+		SDL_Rect blackrect = {0, 0, _videoMode.screenWidth * _videoMode.scaleFactor, _newShakePos * _videoMode.scaleFactor};
+
+		if (_videoMode.aspectRatioCorrection && !_overlayVisible)
+			blackrect.h = real2Aspect(blackrect.h - 1) + 1;
+
+		SDL_FillRect(_hwscreen, &blackrect, 0);
+
+		_currentShakePos = _newShakePos;
+
+		_forceFull = true;
+	}
+
+	// Check whether the palette was changed in the meantime and update the
+	// screen surface accordingly.
+	if (_screen && _paletteDirtyEnd != 0) {
+		SDL_SetColors(_screen, _currentPalette + _paletteDirtyStart,
+		              _paletteDirtyStart,
+		              _paletteDirtyEnd - _paletteDirtyStart);
+
+		_paletteDirtyEnd = 0;
+
+		_forceFull = true;
+	}
+
+#ifdef USE_OSD
+	// OSD visible (i.e. non-transparent)?
+	if (_osdAlpha != SDL_ALPHA_TRANSPARENT) {
+		// Updated alpha value
+		const int diff = SDL_GetTicks() - _osdFadeStartTime;
+		if (diff > 0) {
+			if (diff >= kOSDFadeOutDuration) {
+				// Back to full transparency
+				_osdAlpha = SDL_ALPHA_TRANSPARENT;
+			} else {
+				// Do a linear fade out...
+				const int startAlpha = SDL_ALPHA_TRANSPARENT + kOSDInitialAlpha * (SDL_ALPHA_OPAQUE - SDL_ALPHA_TRANSPARENT) / 100;
+				_osdAlpha = startAlpha + diff * (SDL_ALPHA_TRANSPARENT - startAlpha) / kOSDFadeOutDuration;
+			}
+			SDL_SetAlpha(_osdSurface, SDL_RLEACCEL | SDL_SRCCOLORKEY | SDL_SRCALPHA, _osdAlpha);
+			_forceFull = true;
+		}
+	}
+#endif
+
+	if (!_overlayVisible) {
+		origSurf = _screen;
+		srcSurf = _tmpscreen;
+		width = _videoMode.screenWidth;
+		height = _videoMode.screenHeight;
+		scalerProc = _scalerProc;
+		scale1 = _videoMode.scaleFactor;
+	} else {
+		origSurf = _overlayscreen;
+		srcSurf = _tmpscreen2;
+		width = _videoMode.overlayWidth;
+		height = _videoMode.overlayHeight;
+		scalerProc = Normal1x;
+		scale1 = 1;
+	}
+
+	// Add the area covered by the mouse cursor to the list of dirty rects if
+	// we have to redraw the mouse.
+	if (_mouseNeedsRedraw)
+		undrawMouse();
+
+	// Force a full redraw if requested
+	if (_forceFull) {
+		_numDirtyRects = 1;
+		_dirtyRectList[0].x = 0;
+		_dirtyRectList[0].y = 0;
+		_dirtyRectList[0].w = width;
+		_dirtyRectList[0].h = height;
+	}
+
+	// Only draw anything if necessary
+	if (_numDirtyRects > 0 || _mouseNeedsRedraw) {
+		SDL_Rect *r;
+		SDL_Rect dst;
+		uint32 srcPitch, dstPitch;
+		SDL_Rect *lastRect = _dirtyRectList + _numDirtyRects;
+
+		for (r = _dirtyRectList; r != lastRect; ++r) {
+			dst = *r;
+			dst.x++;	// Shift rect by one since 2xSai needs to access the data around
+			dst.y++;	// any pixel to scale it, and we want to avoid mem access crashes.
+
+			if (SDL_BlitSurface(origSurf, r, srcSurf, &dst) != 0)
+				error("SDL_BlitSurface failed: %s", SDL_GetError());
+		}
+
+		SDL_LockSurface(srcSurf);
+		SDL_LockSurface(_hwscreen);
+
+		srcPitch = srcSurf->pitch;
+		dstPitch = _hwscreen->pitch;
+
+		for (r = _dirtyRectList; r != lastRect; ++r) {
+			register int dst_y = r->y + _currentShakePos;
+			register int dst_h = 0;
+			register int dst_w = r->w;
+			register int orig_dst_y = 0;
+			register int dst_x = r->x;
+			register int src_y;
+			register int src_x;
+
+			if (dst_y < height) {
+				dst_h = r->h;
+				if (dst_h > height - dst_y)
+					dst_h = height - dst_y;
+
+				orig_dst_y = dst_y;
+				src_x = dst_x;
+				src_y = dst_y;
+
+				if (_videoMode.aspectRatioCorrection && !_overlayVisible)
+					dst_y = real2Aspect(dst_y);
+
+				assert(scalerProc != NULL);
+
+				if ((_videoMode.mode == GFX_HALF) && (scalerProc == DownscaleAllByHalf)) {
+					if (dst_x % 2 == 1) {
+						dst_x--;
+						dst_w++;
+					}
+					if (dst_y % 2 == 1) {
+						dst_y--;
+						dst_h++;
+					}
+					src_x = dst_x;
+					src_y = dst_y;
+					dst_x = dst_x / 2;
+					dst_y = dst_y / 2;
+
+					scalerProc((byte *)srcSurf->pixels + (src_x * 2 + 2) + (src_y + 1) * srcPitch, srcPitch,
+					           (byte *)_hwscreen->pixels + dst_x * 2 + dst_y * dstPitch, dstPitch, dst_w, dst_h);
+
+				} else {
+					scalerProc((byte *)srcSurf->pixels + (r->x * 2 + 2) + (r->y + 1) * srcPitch, srcPitch,
+					           (byte *)_hwscreen->pixels + r->x * 2 + dst_y * dstPitch, dstPitch, r->w, dst_h);
+				}
+			}
+
+			if (_videoMode.mode == GFX_HALF && scalerProc == DownscaleAllByHalf) {
+				r->w = r->w / 2;
+				r->h = dst_h / 2;
+			} else {
+				r->w = r->w;
+				r->h = dst_h;
+			}
+
+			r->x = dst_x;
+			r->y = dst_y;
+
+
+#ifdef USE_SCALERS
+			if (_videoMode.aspectRatioCorrection && orig_dst_y < height && !_overlayVisible)
+				r->h = stretch200To240((uint8 *) _hwscreen->pixels, dstPitch, r->w, r->h, r->x, r->y, orig_dst_y * scale1);
+#endif
+		}
+		SDL_UnlockSurface(srcSurf);
+		SDL_UnlockSurface(_hwscreen);
+
+		// Readjust the dirty rect list in case we are doing a full update.
+		// This is necessary if shaking is active.
+		if (_forceFull) {
+			_dirtyRectList[0].y = 0;
+			_dirtyRectList[0].h = (_videoMode.mode == GFX_HALF) ? effectiveScreenHeight() / 2 : effectiveScreenHeight();
+		}
+
+		drawMouse();
+
+#ifdef USE_OSD
+		if (_osdAlpha != SDL_ALPHA_TRANSPARENT) {
+			SDL_BlitSurface(_osdSurface, 0, _hwscreen, 0);
+		}
+#endif
+		// Finally, blit all our changes to the screen
+		SDL_UpdateRects(_hwscreen, _numDirtyRects, _dirtyRectList);
+	}
+
+	_numDirtyRects = 0;
+	_forceFull = false;
+	_mouseNeedsRedraw = false;
+}
+
+void OSystem_SDL_Dingux::showOverlay() {
+	if (_videoMode.mode == GFX_HALF) {
+		_mouseCurState.x = _mouseCurState.x / 2;
+		_mouseCurState.y = _mouseCurState.y / 2;
+	}
+	OSystem_SDL::showOverlay();
+}
+
+void OSystem_SDL_Dingux::hideOverlay() {
+	if (_videoMode.mode == GFX_HALF) {
+		_mouseCurState.x = _mouseCurState.x * 2;
+		_mouseCurState.y = _mouseCurState.y * 2;
+	}
+	OSystem_SDL::hideOverlay();
+}
+
+bool OSystem_SDL_Dingux::loadGFXMode() {
+
+	// Forcefully disable aspect ratio correction for games
+	// which starts with a native 240px height resolution.
+	// This fixes games with weird resolutions, like MM Nes (256x240)
+	if(_videoMode.screenHeight == 240) {
+		_videoMode.aspectRatioCorrection = false;
+	}
+
+	fprintf(stdout, "Game ScreenMode = %d*%d\n", _videoMode.screenWidth, _videoMode.screenHeight);
+	if (_videoMode.screenWidth > 320 || _videoMode.screenHeight > 240) {
+		_videoMode.aspectRatioCorrection = false;
+		setGraphicsMode(GFX_HALF);
+		fprintf(stdout, "GraphicsMode set to HALF\n");
+	} else {
+		setGraphicsMode(GFX_NORMAL);
+		fprintf(stdout, "GraphicsMode set to NORMAL\n");
+	}
+
+	if ((_videoMode.mode == GFX_HALF) && !_overlayVisible) {
+		_videoMode.overlayWidth = _videoMode.screenWidth / 2;
+		_videoMode.overlayHeight = _videoMode.screenHeight / 2;
+		_videoMode.fullscreen = true;
+	} else {
+
+		_videoMode.overlayWidth = _videoMode.screenWidth * _videoMode.scaleFactor;
+		_videoMode.overlayHeight = _videoMode.screenHeight * _videoMode.scaleFactor;
+
+		if (_videoMode.aspectRatioCorrection)
+			_videoMode.overlayHeight = real2Aspect(_videoMode.overlayHeight);
+
+		_videoMode.hardwareWidth = _videoMode.screenWidth * _videoMode.scaleFactor;
+		_videoMode.hardwareHeight = effectiveScreenHeight();
+	}
+
+
+	return OSystem_SDL::loadGFXMode();
+}
+
+#endif
+
diff --git a/backends/platform/dingux/dingux.cpp b/backends/platform/dingux/dingux.cpp
new file mode 100644
index 0000000000..cdf10600ce
--- /dev/null
+++ b/backends/platform/dingux/dingux.cpp
@@ -0,0 +1,58 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "backends/platform/dingux/dingux.h"
+
+#if defined(DINGUX)
+
+bool OSystem_SDL_Dingux::hasFeature(Feature f) {
+	return
+	    (f == kFeatureAspectRatioCorrection) ||
+	    (f == kFeatureCursorHasPalette);
+}
+
+void OSystem_SDL_Dingux::setFeatureState(Feature f, bool enable) {
+	switch (f) {
+	case kFeatureAspectRatioCorrection:
+		setAspectRatioCorrection(enable);
+		break;
+	default:
+		break;
+	}
+}
+
+bool OSystem_SDL_Dingux::getFeatureState(Feature f) {
+	assert(_transactionMode == kTransactionNone);
+
+	switch (f) {
+	case kFeatureAspectRatioCorrection:
+		return _videoMode.aspectRatioCorrection;
+	default:
+		return false;
+	}
+}
+
+#endif
+
diff --git a/backends/platform/dingux/dingux.h b/backends/platform/dingux/dingux.h
new file mode 100644
index 0000000000..846ad3faf9
--- /dev/null
+++ b/backends/platform/dingux/dingux.h
@@ -0,0 +1,69 @@
+/* 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 SDL_DINGUX_COMMON_H
+#define SDL_DINGUX_COMMON_H
+
+#include <SDL.h>
+
+#include "backends/base-backend.h"
+#include "backends/platform/sdl/sdl.h"
+
+#if defined(DINGUX)
+
+enum {
+	GFX_HALF = 12
+};
+
+class OSystem_SDL_Dingux : public OSystem_SDL {
+public:
+	virtual bool hasFeature(Feature f);
+	virtual void setFeatureState(Feature f, bool enable);
+	virtual bool getFeatureState(Feature f);
+	virtual int getDefaultGraphicsMode() const;
+
+	void initSize(uint w, uint h);
+	const OSystem::GraphicsMode *getSupportedGraphicsModes() const;
+	bool setGraphicsMode(const char *name);
+	bool setGraphicsMode(int mode);
+	void setGraphicsModeIntern();
+	void internUpdateScreen();
+	void showOverlay();
+	void hideOverlay();
+	bool loadGFXMode();
+	void drawMouse();
+	void undrawMouse();
+	void warpMouse(int, int);
+	void fillMouseEvent(Common::Event&, int, int);
+
+protected:
+	virtual bool remapKey(SDL_Event &ev, Common::Event &event);
+};
+
+
+#endif
+
+#endif
+
diff --git a/backends/platform/dingux/main.cpp b/backends/platform/dingux/main.cpp
new file mode 100644
index 0000000000..7b02151c1a
--- /dev/null
+++ b/backends/platform/dingux/main.cpp
@@ -0,0 +1,53 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "backends/platform/dingux/dingux.h"
+#include "backends/plugins/sdl/sdl-provider.h"
+//#include "backends/plugins/posix/posix-provider.h"
+#include "base/main.h"
+
+#if defined(DINGUX)
+
+#include <unistd.h>
+
+int main(int argc, char* argv[]) {
+
+	g_system = new OSystem_SDL_Dingux();
+	assert(g_system);
+
+#ifdef DYNAMIC_MODULES
+	PluginManager::instance().addPluginProvider(new SDLPluginProvider());
+//	PluginManager::instance().addPluginProvider(new POSIXPluginProvider());
+#endif
+
+	// Invoke the actual ScummVM main entry point:
+	int res = scummvm_main(argc, argv);
+	((OSystem_SDL *)g_system)->deinit();
+	return res;
+
+}
+
+#endif
+
diff --git a/backends/platform/dingux/module.mk b/backends/platform/dingux/module.mk
new file mode 100644
index 0000000000..309fb94442
--- /dev/null
+++ b/backends/platform/dingux/module.mk
@@ -0,0 +1,13 @@
+MODULE := backends/platform/dingux
+
+MODULE_OBJS := \
+	main.o \
+	dingux.o \
+	dingux-events.o \
+	dingux-graphics.o \
+
+MODULE_DIRS += \
+	backends/platform/dingux/
+
+# We don't use the rules.mk here on purpose
+OBJS := $(addprefix $(MODULE)/, $(MODULE_OBJS)) $(OBJS)
diff --git a/backends/platform/gp2xwiz/caanoo/build.sh b/backends/platform/gp2xwiz/caanoo/build.sh
new file mode 100755
index 0000000000..8000d2595d
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/build.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+echo Quick script to make building all the time less painful.
+
+# Set the paths up here to support the build.
+
+cd ../../../..
+
+echo Building ScummVM for GP2X Caanoo.
+make
+
+echo Build for GP2X Caanoo - complete - Please check build logs.
diff --git a/backends/platform/gp2xwiz/caanoo/bundle-debug.sh b/backends/platform/gp2xwiz/caanoo/bundle-debug.sh
new file mode 100755
index 0000000000..2d5cefe80e
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/bundle-debug.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+echo Quick script to make building a distribution of the GP2X Caanoo backend more consistent.
+
+cd ../../../..
+
+echo Building ScummVM for GP2X Caanoo.
+
+make caanoo-bundle-debug
diff --git a/backends/platform/gp2xwiz/caanoo/bundle.sh b/backends/platform/gp2xwiz/caanoo/bundle.sh
new file mode 100755
index 0000000000..76fd31cec6
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/bundle.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+echo Quick script to make building a distribution of the GP2X Caanoo backend more consistent.
+
+cd ../../../..
+
+echo Building ScummVM for GP2X Caanoo.
+
+make caanoo-bundle
diff --git a/backends/platform/gp2xwiz/caanoo/caanoo-bundle.mk b/backends/platform/gp2xwiz/caanoo/caanoo-bundle.mk
new file mode 100755
index 0000000000..f8ac26382d
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/caanoo-bundle.mk
@@ -0,0 +1,67 @@
+# Special target to create bundles for the GP2X Caanoo.
+
+#bundle_name = release/scummvm-caanoo-`date '+%Y-%m-%d'`
+bundle_name = release/scummvm-caanoo
+f=$(shell which $(STRIP))
+libloc = $(shell dirname $(f))
+
+caanoo-bundle: $(EXECUTABLE)
+	$(MKDIR) "$(bundle_name)"
+	$(MKDIR) "$(bundle_name)/scummvm"
+	$(MKDIR) "$(bundle_name)/scummvm/saves"
+	$(MKDIR) "$(bundle_name)/scummvm/engine-data"
+	$(MKDIR) "$(bundle_name)/scummvm/lib"
+	
+	echo "Please put your save games in this dir" >> "$(bundle_name)/scummvm/saves/PUT_SAVES_IN_THIS_DIR"
+
+	$(CP) $(srcdir)/backends/platform/gp2xwiz/caanoo/scummvm.gpe $(bundle_name)/scummvm/
+	$(CP) $(srcdir)/backends/platform/gp2xwiz/build/scummvm.png $(bundle_name)/scummvm/
+	$(CP) $(srcdir)/backends/platform/gp2xwiz/build/README-GP2XWIZ $(bundle_name)/scummvm/README-CAANOO
+	$(CP) $(srcdir)/backends/platform/gp2xwiz/build/scummvm.ini $(bundle_name)/	
+
+	$(INSTALL) -c -m 644 $(DIST_FILES_DOCS) $(bundle_name)/scummvm/
+	$(INSTALL) -c -m 644 $(DIST_FILES_THEMES) $(bundle_name)/scummvm/
+	$(INSTALL) -c -m 644 $(DIST_FILES_ENGINEDATA) $(bundle_name)/scummvm/engine-data
+	$(CP) $(srcdir)/backends/vkeybd/packs/vkeybd_default.zip $(bundle_name)/scummvm/
+
+	$(STRIP) $(EXECUTABLE) -o $(bundle_name)/scummvm/$(EXECUTABLE)
+
+ifdef DYNAMIC_MODULES
+	$(INSTALL) -d "$(bundle_name)/scummvm/plugins"
+	$(INSTALL) -c -m 644 $(PLUGINS) "$(bundle_name)/scummvm/plugins"
+	$(STRIP) $(bundle_name)/scummvm/plugins/*
+endif
+	
+	tar -C $(bundle_name) -cvjf $(bundle_name).tar.bz2 .
+	rm -R ./$(bundle_name)	
+
+caanoo-bundle-debug: $(EXECUTABLE)
+	$(MKDIR) "$(bundle_name)"
+	$(MKDIR) "$(bundle_name)/scummvm"
+	$(MKDIR) "$(bundle_name)/scummvm/saves"
+	$(MKDIR) "$(bundle_name)/scummvm/engine-data"
+	$(MKDIR) "$(bundle_name)/scummvm/lib"
+	
+	echo "Please put your save games in this dir" >> "$(bundle_name)/scummvm/saves/PUT_SAVES_IN_THIS_DIR"
+
+	$(CP) $(srcdir)/backends/platform/gp2xwiz/caanoo/scummvm-gdb.gpe $(bundle_name)/scummvm/scummvm.gpe
+	$(CP) $(srcdir)/backends/platform/gp2xwiz/build/scummvm.png $(bundle_name)/scummvm/
+	$(CP) $(srcdir)/backends/platform/gp2xwiz/build/README-GP2XWIZ $(bundle_name)/scummvm/README-CAANOO
+	$(CP) $(srcdir)/backends/platform/gp2xwiz/build/scummvm.ini $(bundle_name)/	
+
+	$(INSTALL) -c -m 644 $(DIST_FILES_DOCS) $(bundle_name)/scummvm/
+	$(INSTALL) -c -m 644 $(DIST_FILES_THEMES) $(bundle_name)/scummvm/
+	$(INSTALL) -c -m 644 $(DIST_FILES_ENGINEDATA) $(bundle_name)/scummvm/engine-data
+	$(CP) $(srcdir)/backends/vkeybd/packs/vkeybd_default.zip $(bundle_name)/scummvm/
+
+	$(INSTALL) -c -m 777 $(srcdir)/$(EXECUTABLE) $(bundle_name)/scummvm/$(EXECUTABLE)
+
+ifdef DYNAMIC_MODULES
+	$(INSTALL) -d "$(bundle_name)/scummvm/plugins"
+	$(INSTALL) -c -m 644 $(PLUGINS) "$(bundle_name)/scummvm/plugins"
+endif
+
+	tar -C $(bundle_name) -cvjf $(bundle_name)-debug.tar.bz2 .
+	rm -R ./$(bundle_name)	
+
+.PHONY: caanoo-bundle caanoo-bundle-debug
diff --git a/backends/platform/gp2xwiz/caanoo/clean.sh b/backends/platform/gp2xwiz/caanoo/clean.sh
new file mode 100755
index 0000000000..5ec1b9e62c
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/clean.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+echo Quick script to make building all the time less painful.
+
+cd ../../../..
+
+echo Cleaning ScummVM for the GP2X Wiz.
+make clean
diff --git a/backends/platform/gp2xwiz/caanoo/config-alleng.sh b/backends/platform/gp2xwiz/caanoo/config-alleng.sh
new file mode 100755
index 0000000000..7a097c268b
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/config-alleng.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+echo Quick script to make running configure all the time less painful
+echo and let all the build work be done from the backend/build folder.
+
+# Assume Caanoo toolchain/build env.
+. /opt/arm-caanoo/environment-setup
+
+# Export the tool names for cross-compiling
+export DEFINES=-DNDEBUG
+
+# Edit the configure line to suit.
+cd ../../../..
+./configure --backend=caanoo --disable-mt32emu --host=caanoo --disable-alsa --disable-flac --disable-nasm --disable-vorbis --disable-hq-scalers --with-sdl-prefix=/usr/local/angstrom/arm/arm-angstrom-linux-gnueabi/usr/bin --with-mpeg2-prefix=/usr/local/angstrom/arm/arm-angstrom-linux-gnueabi/usr --enable-tremor --with-tremor-prefix=/usr/local/angstrom/arm/arm-angstrom-linux-gnueabi/usr --enable-zlib --with-zlib-prefix=/usr/local/angstrom/arm/arm-angstrom-linux-gnueabi/usr --enable-mad --with-mad-prefix=/opt/arm-caanoo/arm-none-linux-gnueabi/usr --enable-all-engines --enable-vkeybd --enable-plugins --default-dynamic
+
+echo Generating config for GP2X Caanoo complete. Check for errors.
diff --git a/backends/platform/gp2xwiz/caanoo/config.sh b/backends/platform/gp2xwiz/caanoo/config.sh
new file mode 100755
index 0000000000..73ce5da624
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/config.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+echo Quick script to make running configure all the time less painful
+echo and let all the build work be done from the backend/build folder.
+
+# Assume Caanoo toolchain/build env.
+. /opt/arm-caanoo/environment-setup
+
+# Export the tool names for cross-compiling
+export DEFINES=-DNDEBUG
+
+# Edit the configure line to suit.
+cd ../../../..
+./configure --backend=caanoo --disable-mt32emu --host=caanoo --disable-alsa --disable-flac --disable-nasm --disable-vorbis --disable-hq-scalers --with-sdl-prefix=/opt/arm-caanoo/arm-none-linux-gnueabi/usr/bin --with-mpeg2-prefix=/opt/arm-caanoo/arm-none-linux-gnueabi/usr --enable-tremor --with-tremor-prefix=/opt/arm-caanoo/arm-none-linux-gnueabi/usr --enable-zlib --with-zlib-prefix=/opt/arm-caanoo/arm-none-linux-gnueabi/usr --enable-mad --with-mad-prefix=/opt/arm-caanoo/arm-none-linux-gnueabi/usr --enable-vkeybd --enable-plugins --default-dynamic 
+
+echo Generating config for GP2X Caanoo complete. Check for errors.
diff --git a/backends/platform/gp2xwiz/caanoo/scummvm-gdb.gpe b/backends/platform/gp2xwiz/caanoo/scummvm-gdb.gpe
new file mode 100755
index 0000000000..a8f2aae0fe
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/scummvm-gdb.gpe
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+# Export the location of any libs ScummVM depends on
+# (to avoid installing to the NAND and overwriting the broken ones there).
+export LD_LIBRARY_PATH=`pwd`/lib:$LD_LIBRARY_PATH
+
+# Run ScummVM via GDB (so make sure you have a terminal open or serial).
+# Oh, and GDB installed of course ;)
+gdb --args ./scummvm.caanoo --fullscreen --gfx-mode=1x --config=$(pwd)/.scummvmrc 
+
+# Sync the SD card to check that everything is written.
+sync
+
+# Return to the GPH menu screen
+cd /usr/gp2x
+exec /usr/gp2x/gp2xmenu
diff --git a/backends/platform/gp2xwiz/caanoo/scummvm.gpe b/backends/platform/gp2xwiz/caanoo/scummvm.gpe
new file mode 100755
index 0000000000..8341ffc3d7
--- /dev/null
+++ b/backends/platform/gp2xwiz/caanoo/scummvm.gpe
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Export the location of any libs ScummVM depends on
+# (to avoid installing to the NAND and overwriting the broken ones there).
+export LD_LIBRARY_PATH=`pwd`/lib:$LD_LIBRARY_PATH
+
+# Run ScummVM, important this bit.
+./scummvm.caanoo --fullscreen --gfx-mode=1x --config=$(pwd)/.scummvmrc 
+
+# Sync the SD card to check that everything is written.
+sync
+
+# Return to the GPH menu screen
+cd /usr/gp2x
+exec /usr/gp2x/gp2xmenu
diff --git a/backends/platform/gp2xwiz/gp2xwiz-graphics.cpp b/backends/platform/gp2xwiz/gp2xwiz-graphics.cpp
index f6ad226d42..9b8a41a7cf 100644
--- a/backends/platform/gp2xwiz/gp2xwiz-graphics.cpp
+++ b/backends/platform/gp2xwiz/gp2xwiz-graphics.cpp
@@ -35,11 +35,9 @@
 
 static const OSystem::GraphicsMode s_supportedGraphicsModes[] = {
 	{"1x", "Fullscreen", GFX_NORMAL},
-//	{"½x", "Downscale", GFX_HALF},
 	{0, 0, 0}
 };
 
-
 const OSystem::GraphicsMode *OSystem_GP2XWIZ::getSupportedGraphicsModes() const {
 	return s_supportedGraphicsModes;
 }
@@ -111,7 +109,6 @@ void OSystem_GP2XWIZ::setGraphicsModeIntern() {
 	blitCursor();
 }
 
-
 void OSystem_GP2XWIZ::initSize(uint w, uint h) {
 	assert(_transactionMode == kTransactionActive);
 
@@ -131,13 +128,30 @@ void OSystem_GP2XWIZ::initSize(uint w, uint h) {
 }
 
 bool OSystem_GP2XWIZ::loadGFXMode() {
-	_videoMode.overlayWidth = 320;
-	_videoMode.overlayHeight = 240;
-	_videoMode.fullscreen = true;
-
-	if (_videoMode.screenHeight != 200 && _videoMode.screenHeight != 400)
+	if (_videoMode.screenWidth > 320 || _videoMode.screenHeight > 240) {
 		_videoMode.aspectRatioCorrection = false;
+		setGraphicsMode(GFX_HALF);
+		printf("GFX_HALF\n");
+	} else {
+		setGraphicsMode(GFX_NORMAL);
+		printf("GFX_NORMAL\n");
+	}
+
+	if ((_videoMode.mode == GFX_HALF) && !_overlayVisible) {
+		_videoMode.overlayWidth = _videoMode.screenWidth / 2;
+		_videoMode.overlayHeight = _videoMode.screenHeight / 2;
+		_videoMode.fullscreen = true;
+	} else {
+
+		_videoMode.overlayWidth = _videoMode.screenWidth * _videoMode.scaleFactor;
+		_videoMode.overlayHeight = _videoMode.screenHeight * _videoMode.scaleFactor;
+
+		if (_videoMode.aspectRatioCorrection)
+			_videoMode.overlayHeight = real2Aspect(_videoMode.overlayHeight);
 
+		_videoMode.hardwareWidth = _videoMode.screenWidth * _videoMode.scaleFactor;
+		_videoMode.hardwareHeight = effectiveScreenHeight();
+	}
 	return OSystem_SDL::loadGFXMode();
 }
 
@@ -149,6 +163,7 @@ void OSystem_GP2XWIZ::drawMouse() {
 
 	SDL_Rect dst;
 	int scale;
+	int width, height;
 	int hotX, hotY;
 
 	if (_videoMode.mode == GFX_HALF && !_overlayVisible){
@@ -161,12 +176,16 @@ void OSystem_GP2XWIZ::drawMouse() {
 
 	if (!_overlayVisible) {
 		scale = _videoMode.scaleFactor;
+		width = _videoMode.screenWidth;
+		height = _videoMode.screenHeight;
 		dst.w = _mouseCurState.vW;
 		dst.h = _mouseCurState.vH;
 		hotX = _mouseCurState.vHotX;
 		hotY = _mouseCurState.vHotY;
 	} else {
 		scale = 1;
+		width = _videoMode.overlayWidth;
+		height = _videoMode.overlayHeight;
 		dst.w = _mouseCurState.rW;
 		dst.h = _mouseCurState.rH;
 		hotX = _mouseCurState.rHotX;
@@ -231,7 +250,7 @@ void OSystem_GP2XWIZ::internUpdateScreen() {
 	ScalerProc *scalerProc;
 	int scale1;
 
-#if defined (DEBUG) && ! defined(_WIN32_WCE) // definitions not available for non-DEBUG here. (needed this to compile in SYMBIAN32 & linux?)
+#if defined (DEBUG)
 	assert(_hwscreen != NULL);
 	assert(_hwscreen->map->sw_data != NULL);
 #endif
@@ -295,7 +314,6 @@ void OSystem_GP2XWIZ::internUpdateScreen() {
 		width = _videoMode.overlayWidth;
 		height = _videoMode.overlayHeight;
 		scalerProc = Normal1x;
-
 		scale1 = 1;
 	}
 
@@ -358,7 +376,7 @@ void OSystem_GP2XWIZ::internUpdateScreen() {
 
 				assert(scalerProc != NULL);
 
-				if (_videoMode.mode == GFX_HALF && scalerProc == DownscaleAllByHalf){
+				if ((_videoMode.mode == GFX_HALF) && (scalerProc == DownscaleAllByHalf)) {
 					if (dst_x%2==1){
 						dst_x--;
 						dst_w++;
@@ -371,9 +389,13 @@ void OSystem_GP2XWIZ::internUpdateScreen() {
 					src_y = dst_y;
 					dst_x = dst_x / 2;
 					dst_y = dst_y / 2;
-				}
-				scalerProc((byte *)srcSurf->pixels + (src_x * 2 + 2) + (src_y + 1) * srcPitch, srcPitch,
+
+					scalerProc((byte *)srcSurf->pixels + (src_x * 2 + 2) + (src_y + 1) * srcPitch, srcPitch,
 						   (byte *)_hwscreen->pixels + dst_x * 2 + dst_y * dstPitch, dstPitch, dst_w, dst_h);
+				} else {
+					scalerProc((byte *)srcSurf->pixels + (r->x * 2 + 2) + (r->y + 1) * srcPitch, srcPitch,
+					           (byte *)_hwscreen->pixels + r->x * 2 + dst_y * dstPitch, dstPitch, r->w, dst_h);
+				}
 			}
 
 			if (_videoMode.mode == GFX_HALF && scalerProc == DownscaleAllByHalf){
diff --git a/backends/platform/gp2xwiz/gp2xwiz-main.cpp b/backends/platform/gp2xwiz/gp2xwiz-main.cpp
index 394c3090c3..839afa6a95 100644
--- a/backends/platform/gp2xwiz/gp2xwiz-main.cpp
+++ b/backends/platform/gp2xwiz/gp2xwiz-main.cpp
@@ -30,7 +30,6 @@
 #include "backends/platform/gp2xwiz/gp2xwiz-hw.h"
 #include "backends/plugins/posix/posix-provider.h"
 #include "base/main.h"
-#include "base/internal_version.h"
 
 #include "common/archive.h"
 #include "common/config-manager.h"
@@ -55,13 +54,11 @@
 #include <time.h>	// for getTimeAndDate()
 
 /* Dump console info to files. */
-// #define DUMP_STDOUT
+#define DUMP_STDOUT
 
 int main(int argc, char *argv[]) {
-
 	g_system = new OSystem_GP2XWIZ();
 	assert(g_system);
-
 #ifdef DYNAMIC_MODULES
 	PluginManager::instance().addPluginProvider(new POSIXPluginProvider());
 #endif
diff --git a/backends/platform/linuxmoto/linuxmoto-main.cpp b/backends/platform/linuxmoto/linuxmoto-main.cpp
index b971a65f7e..97f12e8ce1 100644
--- a/backends/platform/linuxmoto/linuxmoto-main.cpp
+++ b/backends/platform/linuxmoto/linuxmoto-main.cpp
@@ -31,7 +31,6 @@
 
 #include "backends/platform/linuxmoto/linuxmoto-sdl.h"
 #include "base/main.h"
-#include "base/internal_version.h"
 
 int main(int argc, char *argv[]) {
 	g_system = new OSystem_LINUXMOTO();
diff --git a/backends/platform/n64/README.N64 b/backends/platform/n64/README.N64
index 276436b676..c6ae6f021e 100644
--- a/backends/platform/n64/README.N64
+++ b/backends/platform/n64/README.N64
@@ -111,5 +111,6 @@ Notes
 
 ** TODO **
 ==========
+
 Write the rest of this README.
 
diff --git a/backends/platform/n64/osys_n64.h b/backends/platform/n64/osys_n64.h
index f7560eb4d3..707bb1b7ae 100644
--- a/backends/platform/n64/osys_n64.h
+++ b/backends/platform/n64/osys_n64.h
@@ -98,7 +98,7 @@ protected:
 	uint16 _gameWidth, _gameHeight;
 	uint16 _frameBufferWidth; // Width of framebuffer in N64 memory
 	uint8 _offscrPixels; // Pixels to skip on each line before start drawing, used to center image
-	uint8 _maxFps;
+	uint8 _maxFps; // Max frames-per-second which can be shown on screen
 
 	int _shakeOffset;
 
@@ -123,7 +123,7 @@ protected:
 
 	uint8 _controllerPort;
 	int8 _mousePort;
-	bool _controllerHasRumble;
+	bool _controllerHasRumble; // Gets enabled if rumble-pak is detected
 
 	bool _dirtyOffscreen;
 
@@ -133,8 +133,8 @@ public:
 	uint16 _audioBufferSize;
 	uint32 _viClockRate; // Clock rate of video system, depending on VI mode
 
-	int _timerCallbackNext;
-	int _timerCallbackTimer;
+	uint32 _timerCallbackNext;
+	uint32 _timerCallbackTimer;
 	TimerProc _timerCallback;
 	/* *** */
 
diff --git a/backends/platform/n64/osys_n64_base.cpp b/backends/platform/n64/osys_n64_base.cpp
index 5e4b84ba3f..06ff38e586 100644
--- a/backends/platform/n64/osys_n64_base.cpp
+++ b/backends/platform/n64/osys_n64_base.cpp
@@ -346,8 +346,7 @@ int16 OSystem_N64::getWidth() {
 }
 
 void OSystem_N64::setPalette(const byte *colors, uint start, uint num) {
-	for (int i = 0; i < num; ++i) {
-		uint8 c[4];
+	for (uint i = 0; i < num; ++i) {
 		_screenPalette[start + i] = colRGB888toBGR555(colors[2], colors[1], colors[0]);
 		colors += 4;
 	}
@@ -413,7 +412,7 @@ void OSystem_N64::grabPalette(byte *colors, uint start, uint num) {
 }
 
 void OSystem_N64::setCursorPalette(const byte *colors, uint start, uint num) {
-	for (int i = 0; i < num; ++i) {
+	for (uint i = 0; i < num; ++i) {
 		_cursorPalette[start + i] = colRGB888toBGR555(colors[2], colors[1], colors[0]);
 		colors += 4;
 	}
@@ -878,6 +877,8 @@ FilesystemFactory *OSystem_N64::getFilesystemFactory() {
 }
 
 void OSystem_N64::setTimerCallback(TimerProc callback, int interval) {
+	assert (interval > 0);
+
 	if (callback != NULL) {
 		_timerCallbackTimer = interval;
 		_timerCallbackNext = getMillis() + interval;
diff --git a/backends/platform/n64/osys_n64_utilities.cpp b/backends/platform/n64/osys_n64_utilities.cpp
index bc4661889f..88a2970d7d 100644
--- a/backends/platform/n64/osys_n64_utilities.cpp
+++ b/backends/platform/n64/osys_n64_utilities.cpp
@@ -42,9 +42,6 @@ void disableAudioPlayback(void) {
 
 	_audioEnabled = false;
 
-	OSystem_N64 *osys = (OSystem_N64 *)g_system;
-	Audio::MixerImpl *localmixer = (Audio::MixerImpl *)osys->getMixer();
-
 	while (AI_busy()); // Wait for audio to stop
 }
 
diff --git a/backends/platform/psp/display_manager.cpp b/backends/platform/psp/display_manager.cpp
index 544e5a1b25..e65d6f4fd0 100644
--- a/backends/platform/psp/display_manager.cpp
+++ b/backends/platform/psp/display_manager.cpp
@@ -53,10 +53,9 @@
 uint32 __attribute__((aligned(16))) MasterGuRenderer::_displayList[2048];
 
 const OSystem::GraphicsMode DisplayManager::_supportedModes[] = {
-	{ "320x200 (centered)", "320x200 16-bit centered", CENTERED_320X200 },
-	{ "435x272 (best-fit, centered)", "435x272 16-bit centered", CENTERED_435X272 },
-	{ "480x272 (full screen)", "480x272 16-bit stretched", STRETCHED_480X272 },
-	{ "362x272 (4:3, centered)", "362x272 16-bit centered", CENTERED_362X272 },
+	{ "Original Resolution", "Original Resolution", ORIGINAL_RESOLUTION },
+	{ "Keep Aspect Ratio", "Keep Aspect Ratio", KEEP_ASPECT_RATIO },
+	{ "Full Screen", "Full Screen", STRETCHED_FULL_SCREEN },
 	{0, 0, 0}
 };
 
@@ -263,38 +262,50 @@ bool DisplayManager::setGraphicsMode(int mode) {
 
 	_graphicsMode = mode;
 
+	calculateScaleParams();
+
+	return true;
+}
+
+void DisplayManager::calculateScaleParams() {
+
+	if (!_displayParams.screenSource.width || !_displayParams.screenSource.height)
+		return; // we can't calculate anything without these
+
 	switch (_graphicsMode) {
-	case CENTERED_320X200:
-		_displayParams.screenOutput.width = 320;
-		_displayParams.screenOutput.height = 200;
-		break;
-	case CENTERED_435X272:
-		_displayParams.screenOutput.width = 435;
-		_displayParams.screenOutput.height = 272;
+	case ORIGINAL_RESOLUTION:
+		// check if we can fit the original resolution inside the screen
+		if ((_displayParams.screenSource.width < PSP_SCREEN_WIDTH) &&
+			(_displayParams.screenSource.height < PSP_SCREEN_HEIGHT)) {
+			_displayParams.screenOutput.width =  _displayParams.screenSource.width;
+			_displayParams.screenOutput.height =  _displayParams.screenSource.height;
+		} else { // revert to stretch to fit
+			_displayParams.screenOutput.width = PSP_SCREEN_WIDTH;
+			_displayParams.screenOutput.height = PSP_SCREEN_HEIGHT;
+		}
 		break;
-	case STRETCHED_480X272:
-		_displayParams.screenOutput.width = 480;
-		_displayParams.screenOutput.height = 272;
+	case KEEP_ASPECT_RATIO:	{ // maximize the height while keeping aspect ratio
+			float aspectRatio = (float)_displayParams.screenSource.width / (float)_displayParams.screenSource.height;
+			
+			_displayParams.screenOutput.height = PSP_SCREEN_HEIGHT;	// always full height
+			_displayParams.screenOutput.width = (uint32)(PSP_SCREEN_HEIGHT * aspectRatio);
+			
+			if (_displayParams.screenOutput.width > PSP_SCREEN_WIDTH) // we can't have wider than the screen
+				_displayParams.screenOutput.width = PSP_SCREEN_WIDTH;
+		}
 		break;
-	case CENTERED_362X272:
-		_displayParams.screenOutput.width = 362;
-		_displayParams.screenOutput.height = 272;
+	case STRETCHED_FULL_SCREEN:	// we simply stretch to the whole screen
+		_displayParams.screenOutput.width = PSP_SCREEN_WIDTH;
+		_displayParams.screenOutput.height = PSP_SCREEN_HEIGHT;
 		break;
 	default:
 		PSP_ERROR("Unsupported graphics mode[%d].\n", _graphicsMode);
 	}
+	
+	// calculate scale factors for X and Y
+	_displayParams.scaleX = ((float)_displayParams.screenOutput.width) / _displayParams.screenSource.width;
+	_displayParams.scaleY = ((float)_displayParams.screenOutput.height) / _displayParams.screenSource.height;
 
-	calculateScaleParams();
-
-	return true;
-}
-
-void DisplayManager::calculateScaleParams() {
-	if (_displayParams.screenOutput.width && _displayParams.screenSource.width &&
-	        _displayParams.screenOutput.height && _displayParams.screenSource.height) {
-		_displayParams.scaleX = ((float)_displayParams.screenOutput.width) / _displayParams.screenSource.width;
-		_displayParams.scaleY = ((float)_displayParams.screenOutput.height) / _displayParams.screenSource.height;
-	}
 }
 
 // return true if we really rendered or no dirty. False otherwise
diff --git a/backends/platform/psp/display_manager.h b/backends/platform/psp/display_manager.h
index 72f252faae..626415696a 100644
--- a/backends/platform/psp/display_manager.h
+++ b/backends/platform/psp/display_manager.h
@@ -61,10 +61,9 @@ class PSPKeyboard;
 class DisplayManager {
 public:
 	enum GraphicsModeID {			///> Possible output formats onscreen
-		CENTERED_320X200,
-		CENTERED_435X272,
-		STRETCHED_480X272,
-		CENTERED_362X272
+		ORIGINAL_RESOLUTION,
+		KEEP_ASPECT_RATIO,
+		STRETCHED_FULL_SCREEN
 	};
 	DisplayManager() : _screen(0), _cursor(0), _overlay(0), _keyboard(0), _lastUpdateTime(0), _graphicsMode(0) {}
 	~DisplayManager();
@@ -74,7 +73,7 @@ public:
 	bool setGraphicsMode(int mode);
 	bool setGraphicsMode(const char *name);
 	int getGraphicsMode() const { return _graphicsMode; }
-	uint32 getDefaultGraphicsMode() const { return STRETCHED_480X272; }
+	uint32 getDefaultGraphicsMode() const { return STRETCHED_FULL_SCREEN; }
 	const OSystem::GraphicsMode* getSupportedGraphicsModes() const { return _supportedModes; }
 
 	// Setters
diff --git a/backends/platform/psp/mp3.cpp b/backends/platform/psp/mp3.cpp
index e25891396b..98e8a0404b 100644
--- a/backends/platform/psp/mp3.cpp
+++ b/backends/platform/psp/mp3.cpp
@@ -60,6 +60,21 @@ bool Mp3PspStream::_decoderFail = true;		// pretend the decoder failed
 bool Mp3PspStream::_decoderFail = false;	// has the decoder failed to load
 #endif
 
+// Arranged in groups of 3 (layers), starting with MPEG-1 and ending with MPEG 2.5
+static uint32 mp3SamplesPerFrame[9] = {384, 1152, 1152, 384, 1152, 576, 384, 1152, 576};
+
+// The numbering below doesn't correspond to the way they are in the header
+enum {
+	MPEG_VER1 = 0,
+	MPEG_VER1_HEADER = 0x3,
+	MPEG_VER2 = 1,
+	MPEG_VER2_HEADER = 0x2,
+	MPEG_VER2_5 = 2,
+	MPEG_VER2_5_HEADER = 0x0
+};
+
+#define HEADER_GET_MPEG_VERSION(x) ((((x)[1])>>3) & 0x3)
+
 bool Mp3PspStream::initDecoder() {
 	DEBUG_ENTER_FUNC();
 	
@@ -104,7 +119,7 @@ bool Mp3PspStream::stopDecoder() {
 		return true;
 		
 	// Based on PSP firmware version, we need to do different things to do Media Engine processing
-    if (sceKernelDevkitVersion() == 0x01050001){
+    if (sceKernelDevkitVersion() == 0x01050001){  // TODO: how do we unload?
 /*      if (!unloadAudioModule("flash0:/kd/me_for_vsh.prx", PSP_MEMORY_PARTITION_KERNEL) ||
 			!unloadAudioModule("flash0:/kd/audiocodec.prx", PSP_MEMORY_PARTITION_KERNEL) {
 			PSP_ERROR("failed to unload audio module\n");
@@ -172,17 +187,16 @@ Mp3PspStream::Mp3PspStream(Common::SeekableReadStream *inStream, DisposeAfterUse
 	
 	initStream();	// init needed stuff for the stream
 
-	while (_state != MP3_STATE_EOS)
-		findValidHeader();	// get a first header so we can read basic stuff
+	findValidHeader();	// get a first header so we can read basic stuff
 	
 	_sampleRate = _header.samplerate;	// copy it before it gets destroyed
+		
+	while (_state != MP3_STATE_EOS)
+		findValidHeader();	// get a first header so we can read basic stuff
 	
 	_length = Timestamp(mad_timer_count(_totalTime, MAD_UNITS_MILLISECONDS), getRate());
 	
-	//initStreamME();		// init the stuff needed for the ME to work
-	
 	deinitStream();
-	//releaseStreamME();
 
 	_state = MP3_STATE_INIT;
 }
@@ -213,7 +227,6 @@ int Mp3PspStream::initStream() {
 
 bool Mp3PspStream::initStreamME() {
 	// The following will eventually go into the thread
-	sceAudiocodecReleaseEDRAM(_codecParams);	// do we need this?
 
 	memset(_codecParams, 0, sizeof(_codecParams));
 	
@@ -285,27 +298,23 @@ void Mp3PspStream::decodeMP3Data() {
 			
 		findValidHeader();	// seach for next valid header
 
-		while (_state == MP3_STATE_READY) {
+		while (_state == MP3_STATE_READY) {	// not a real 'while'. Just for easy flow
 			_stream.error = MAD_ERROR_NONE;
 
 			uint32 frame_size = _stream.next_frame - _stream.this_frame;
-			uint32 samplesPerFrame = _header.layer == MAD_LAYER_III ? 576 : 1152; 	// Varies by layer
-			// calculate frame size -- try
-			//uint32 calc_frame_size = ((144 * _header.bitrate) / 22050) + (_header.flags & MAD_FLAG_PADDING ? 1 : 0);
 			
-			// Get stereo/mono
-			uint32 multFactor = 1;
-			if (_header.mode != MAD_MODE_SINGLE_CHANNEL)	// mono	- x2 for 16bit
-				multFactor *= 2;							// stereo - x4 for 16bit
-			
-			PSP_DEBUG_PRINT("MP3 frame size[%d]. Samples[%d]. Multfactor[%d] pad[%d]\n", frame_size, samplesPerFrame, multFactor, _header.flags & MAD_FLAG_PADDING);
+			updatePcmLength(); // Retrieve the number of PCM samples. 
+							   // We seem to change this, so it needs to be dynamic
+						
+			PSP_DEBUG_PRINT("MP3 frame size[%d]. pcmLength[%d]\n", frame_size, _pcmLength);
+
 			memcpy(_codecInBuffer, _stream.this_frame, frame_size);	// we need it aligned
 
 			// set up parameters for ME
 			_codecParams[6] = (unsigned long)_codecInBuffer;
 			_codecParams[8] = (unsigned long)_pcmSamples;
 			_codecParams[7] = frame_size;
-			_codecParams[9] = samplesPerFrame * multFactor;	// x2 for stereo
+			_codecParams[9] = _pcmLength * 2;	// x2 for stereo, though this one's not so important
 			
 			// debug
 #ifdef PRINT_BUFFERS
@@ -320,7 +329,6 @@ void Mp3PspStream::decodeMP3Data() {
 			int ret = sceAudiocodecDecode(_codecParams, 0x1002);
 			if (ret < 0) {
 				PSP_INFO_PRINT("failed to decode MP3 data in ME. sceAudiocodecDecode returned 0x%x\n", ret);
-				// handle error here
 			}
 
 #ifdef PRINT_BUFFERS
@@ -330,7 +338,6 @@ void Mp3PspStream::decodeMP3Data() {
 			}
 			PSP_DEBUG_PRINT("\n");
 #endif
-			_pcmLength = samplesPerFrame;
 			_posInFrame = 0;
 			break;
 		}
@@ -340,6 +347,27 @@ void Mp3PspStream::decodeMP3Data() {
 		_state = MP3_STATE_EOS;
 }
 
+inline void Mp3PspStream::updatePcmLength() {
+	uint32 mpegVer = HEADER_GET_MPEG_VERSION(_stream.this_frame);	// sadly, MAD can't do this for us
+	PSP_DEBUG_PRINT("mpeg ver[%x]\n", mpegVer);
+	switch (mpegVer) {
+		case MPEG_VER1_HEADER:
+			mpegVer = MPEG_VER1;
+			break;
+		case MPEG_VER2_HEADER:
+			mpegVer = MPEG_VER2;
+			break;
+		case MPEG_VER2_5_HEADER:
+			mpegVer = MPEG_VER2_5;
+			break;
+		default:
+			PSP_ERROR("Unknown MPEG version %x\n", mpegVer);
+			break;
+	}
+	PSP_DEBUG_PRINT("layer[%d]\n", _header.layer);
+	_pcmLength = mp3SamplesPerFrame[(mpegVer * 3) + _header.layer - 1];
+}
+
 void Mp3PspStream::readMP3DataIntoBuffer() {
 	DEBUG_ENTER_FUNC();
 
@@ -393,10 +421,6 @@ bool Mp3PspStream::seek(const Timestamp &where) {
 		initStreamME();
 	}
 
-	// The ME will need clear data no matter what once we seek?
-	//if (mad_timer_compare(destination, _totalTime) > 0 && _state != MP3_STATE_EOS)
-	//	initStreamME();
-
 	// Skip ahead
 	while (mad_timer_compare(destination, _totalTime) > 0 && _state != MP3_STATE_EOS)
 		findValidHeader();
@@ -463,9 +487,6 @@ int Mp3PspStream::readBuffer(int16 *buffer, const int numSamples) {
 			_posInFrame++;	// always skip an extra sample since ME always outputs stereo
 		}
 		
-		//memcpy(buffer, &_pcmSamples[_posInFrame], len << 1);	   // 16 bits
-		//_posInFrame += len;		// next time we start from the middle
-
 		if (_posInFrame >= _pcmLength) {
 			// We used up all PCM data in the current frame -- read & decode more
 			decodeMP3Data();
@@ -482,6 +503,4 @@ int Mp3PspStream::readBuffer(int16 *buffer, const int numSamples) {
 	return samples;
 }
 
-} // End of namespace Audio
-
-
+} // End of namespace Audio
\ No newline at end of file
diff --git a/backends/platform/psp/mp3.h b/backends/platform/psp/mp3.h
index 029b3e498c..983f4cb7f4 100644
--- a/backends/platform/psp/mp3.h
+++ b/backends/platform/psp/mp3.h
@@ -46,7 +46,7 @@ protected:
 		MP3_STATE_EOS		// end of data reached (may need to loop)
 	};
 
-	#define MAX_SAMPLES_PER_FRAME	2048 * 2
+	#define MAX_SAMPLES_PER_FRAME	1152 * 2	/* x2 for stereo */
 	int16 _pcmSamples[MAX_SAMPLES_PER_FRAME] __attribute__((aligned(64)));	// samples to output PCM data into
 	byte _codecInBuffer[3072] __attribute__((aligned(64))); // the codec always needs alignment
 	unsigned long _codecParams[65]__attribute__((aligned(64)));		// TODO: change to struct
@@ -54,7 +54,7 @@ protected:
 	Common::SeekableReadStream *_inStream;
 	DisposeAfterUse::Flag _disposeAfterUse;
 	
-	uint32 _pcmLength;		// how many pcm samples we have (/2 for mono)
+	uint32 _pcmLength;		// how many pcm samples we have for this type of file (x2 this for stereo)
 	
 	uint _posInFrame;		// position in frame
 	State _state;			// what state the stream is in
@@ -83,7 +83,8 @@ protected:
 	int initStream();
 	void findValidHeader();
 	void deinitStream();
-
+	void updatePcmLength();
+	
 	// to init and uninit ME decoder
 	static bool initDecoder();
 	static bool stopDecoder();
diff --git a/backends/platform/psp/tests.cpp b/backends/platform/psp/tests.cpp
index d1bdb9e640..f65c13ae83 100644
--- a/backends/platform/psp/tests.cpp
+++ b/backends/platform/psp/tests.cpp
@@ -43,7 +43,9 @@
 #include "backends/platform/psp/rtc.h"
 #include "backends/platform/psp/thread.h"
 #include "backends/platform/psp/memory.h"
-
+#include "common/stream.h"
+#include "common/file.h"
+#include "common/fs.h"
 
 #define UNCACHED(x)		((byte *)(((uint32)(x)) | 0x40000000))	/* make an uncached access */
 #define CACHED(x)		((byte *)(((uint32)(x)) & 0xBFFFFFFF))	/* make an uncached access into a cached one */
@@ -445,6 +447,7 @@ void PspSpeedTests::fastCopySpeed() {
 class PspUnitTests {
 public:
 	void testFastCopy();
+	bool testFileSystem();
 
 private:
 	enum {
@@ -453,6 +456,7 @@ private:
 	
 	void fastCopySpecificSize(byte *dst, byte *src, uint32 bytes, bool swap = false);
 	void fastCopyDifferentSizes(byte *dst, byte *src, bool swap = false);
+	
 };	
 
 void PspUnitTests::testFastCopy() {
@@ -537,6 +541,171 @@ void PspUnitTests::fastCopySpecificSize(byte *dst, byte *src, uint32 bytes, bool
 	}	
 }
 
+// This function leaks. For now I don't care
+bool PspUnitTests::testFileSystem() {
+	// create memory
+	const uint32 BufSize = 32 * 1024;
+	char* buffer = new char[BufSize];
+	int i;
+	Common::WriteStream *wrStream;
+	Common::SeekableReadStream *rdStream;
+	
+	PSP_INFO_PRINT("testing fileSystem...\n");
+	
+	// fill buffer
+	for (i=0; i<(int)BufSize; i += 4) {
+		buffer[i] = 'A';
+		buffer[i + 1] = 'B';
+		buffer[i + 2] = 'C';
+		buffer[i + 3] = 'D';
+	}	
+	
+	// create a file
+	const char *path = "./file.test";
+	Common::FSNode file(path);
+	
+	PSP_INFO_PRINT("creating write stream...\n");
+	
+	wrStream = file.createWriteStream();
+	if (!wrStream) {
+		PSP_ERROR("%s couldn't be created.\n", path);
+		return false;
+	}
+
+	// write contents
+	char* index = buffer;
+	int32 totalLength = BufSize;
+	int32 curLength = 50;
+	
+	PSP_INFO_PRINT("writing...\n");
+	
+	while(totalLength - curLength > 0) {
+		if ((int)wrStream->write(index, curLength) != curLength) {
+			PSP_ERROR("couldn't write %d bytes\n", curLength);
+			return false;
+		}
+		totalLength -= curLength;
+		index += curLength;
+		//curLength *= 2;
+		//PSP_INFO_PRINT("write\n");
+	}
+
+	// write the rest
+	if ((int)wrStream->write(index, totalLength) != totalLength) {
+		PSP_ERROR("couldn't write %d bytes\n", curLength);
+		return false;
+	}
+	
+	delete wrStream;
+	
+	PSP_INFO_PRINT("reading...\n");
+	
+	rdStream = file.createReadStream();
+	if (!rdStream) {
+		PSP_ERROR("%s couldn't be created.\n", path);
+		return false;
+	}
+	
+	// seek to beginning
+	if (!rdStream->seek(0, SEEK_SET)) {
+		PSP_ERROR("couldn't seek to the beginning after writing the file\n");
+		return false;
+	}	
+
+	// read the contents
+	char *readBuffer = new char[BufSize + 4];
+	memset(readBuffer, 0, (BufSize + 4));
+	index = readBuffer;
+	while (rdStream->read(index, 100) == 100) {
+		index += 100;
+	}
+	
+	if (!rdStream->eos()) {
+		PSP_ERROR("didn't find EOS at end of stream\n");
+		return false;		
+	}
+	
+	// compare
+	for (i=0; i<(int)BufSize; i++)
+		if (buffer[i] != readBuffer[i]) {
+			PSP_ERROR("reading/writing mistake at %x. Got %x instead of %x\n", i, readBuffer[i], buffer[i]);
+			return false;
+		}
+	
+	// Check for exceeding limit
+	for (i=0; i<4; i++) {
+		if (readBuffer[BufSize + i]) {
+			PSP_ERROR("read exceeded limits. %d = %x\n", BufSize + i, readBuffer[BufSize + i]);
+		}
+	}	
+	
+	delete rdStream;
+	
+	PSP_INFO_PRINT("writing...\n");
+	
+	wrStream = file.createWriteStream();
+	if (!wrStream) {
+		PSP_ERROR("%s couldn't be created.\n", path);
+		return false;
+	}
+	
+	const char *phrase = "Jello is really fabulous";
+	uint32 phraseLen = strlen(phrase);
+	
+	int ret;
+	if ((ret = wrStream->write(phrase, phraseLen)) != (int)phraseLen) {
+		PSP_ERROR("couldn't write phrase. Got %d instead of %d\n", ret, phraseLen);
+		return false;
+	}
+	
+	PSP_INFO_PRINT("reading...\n");
+	
+	delete wrStream;
+	rdStream = file.createReadStream();
+	if (!rdStream) {
+		PSP_ERROR("%s couldn't be created.\n", path);
+		return false;
+	}
+	
+	char *readPhrase = new char[phraseLen + 2];
+	memset(readPhrase, 0, phraseLen + 2);
+	
+	if ((ret = rdStream->read(readPhrase, phraseLen) != phraseLen)) {
+		PSP_ERROR("read error on phrase. Got %d instead of %d\n", ret, phraseLen);
+		return false;
+	}
+	
+	for (i=0; i<(int)phraseLen; i++) {
+		if (readPhrase[i] != phrase[i]) {
+			PSP_ERROR("bad read/write in phrase. At %d, %x != %x\n", i, readPhrase[i], phrase[i]);
+			return false;
+		}
+	}	
+	
+	// check for exceeding
+	if (readPhrase[i] != 0) {
+		PSP_ERROR("found excessive copy in phrase. %c at %d\n", readPhrase[i], i);
+		return false;
+	}
+	
+	PSP_INFO_PRINT("trying to read end...\n");
+	
+	// seek to end
+	if (!rdStream->seek(0, SEEK_END)) {
+		PSP_ERROR("couldn't seek to end for append\n");
+		return false;
+	};
+	
+	// try to read
+	if (rdStream->read(readPhrase, 2) || !rdStream->eos()) {
+		PSP_ERROR("was able to read at end of file\n");
+		return false;
+	}
+	
+	PSP_INFO_PRINT("ok\n");
+	return true;
+}
+
 void psp_tests() {
 	PSP_INFO_PRINT("in tests\n");
 	
@@ -558,7 +727,8 @@ void psp_tests() {
 	// Unit tests
 	PspUnitTests unitTests;
 	
-	unitTests.testFastCopy();
+	//unitTests.testFastCopy();
+	unitTests.testFileSystem();
 #endif	
 }	
 
diff --git a/backends/platform/sdl/graphics.cpp b/backends/platform/sdl/graphics.cpp
index a97a153f3c..9bf71d1c33 100644
--- a/backends/platform/sdl/graphics.cpp
+++ b/backends/platform/sdl/graphics.cpp
@@ -56,6 +56,8 @@ static const OSystem::GraphicsMode s_supportedGraphicsModes[] = {
 	{0, 0, 0}
 };
 
+DECLARE_TRANSLATION_ADDITIONAL_CONTEXT("Normal (no scaling)", "lowres")
+
 // Table of relative scalers magnitudes
 // [definedScale - 1][scaleFactor - 1]
 static ScalerProc *scalersMagn[3][3] = {
@@ -537,7 +539,7 @@ bool OSystem_SDL::loadGFXMode() {
 	assert(_inited);
 	_forceFull = true;
 
-#if !defined(__MAEMO__) && !defined(GP2XWIZ) && !defined(LINUXMOTO)
+#if !defined(__MAEMO__) && !defined(GP2XWIZ) && !defined(LINUXMOTO) && !defined(DINGUX)
 	_videoMode.overlayWidth = _videoMode.screenWidth * _videoMode.scaleFactor;
 	_videoMode.overlayHeight = _videoMode.screenHeight * _videoMode.scaleFactor;
 
@@ -1393,9 +1395,11 @@ void OSystem_SDL::setMousePos(int x, int y) {
 void OSystem_SDL::warpMouse(int x, int y) {
 	int y1 = y;
 
-	// Don't change mouse position, when mouse is outside of our window (in case of windowed mode)
-	if (!(SDL_GetAppState( ) & SDL_APPMOUSEFOCUS))
+	// Don't change actual mouse position, when mouse is outside of our window (in case of windowed mode)
+	if (!(SDL_GetAppState( ) & SDL_APPMOUSEFOCUS)) {
+		setMousePos(x, y); // but change game cursor position
 		return;
+	}
 
 	if (_videoMode.aspectRatioCorrection && !_overlayVisible)
 		y1 = real2Aspect(y);
diff --git a/backends/platform/sdl/main.cpp b/backends/platform/sdl/main.cpp
index 52bbb59165..9d116d325a 100644
--- a/backends/platform/sdl/main.cpp
+++ b/backends/platform/sdl/main.cpp
@@ -38,7 +38,7 @@
 
 // Several SDL based ports use a custom main, and hence do not want to compile
 // of this file. The following "#if" ensures that.
-#if !defined(__MAEMO__) && !defined(_WIN32_WCE) && !defined(GP2XWIZ)&& !defined(LINUXMOTO) && !defined(__SYMBIAN32__)
+#if !defined(__MAEMO__) && !defined(_WIN32_WCE) && !defined(GP2XWIZ)&& !defined(LINUXMOTO) && !defined(__SYMBIAN32__) && !defined(DINGUX)
 
 
 #include "backends/platform/sdl/sdl.h"
diff --git a/backends/platform/sdl/sdl.cpp b/backends/platform/sdl/sdl.cpp
index 6686249416..22fc561b0f 100644
--- a/backends/platform/sdl/sdl.cpp
+++ b/backends/platform/sdl/sdl.cpp
@@ -150,7 +150,7 @@ void OSystem_SDL::initBackend() {
 	memset(&_videoMode, 0, sizeof(_videoMode));
 	memset(&_transactionDetails, 0, sizeof(_transactionDetails));
 
-#if !defined(_WIN32_WCE) && !defined(__SYMBIAN32__) && defined(USE_SCALERS)
+#if !defined(_WIN32_WCE) && !defined(DINGUX) && !defined(__SYMBIAN32__) && defined(USE_SCALERS)
 	_videoMode.mode = GFX_DOUBLESIZE;
 	_videoMode.scaleFactor = 2;
 	_videoMode.aspectRatioCorrection = ConfMan.getBool("aspect_ratio");
diff --git a/backends/platform/symbian/AdaptAllMMPs.pl b/backends/platform/symbian/AdaptAllMMPs.pl
index 2fba99b873..8b7151c180 100644
--- a/backends/platform/symbian/AdaptAllMMPs.pl
+++ b/backends/platform/symbian/AdaptAllMMPs.pl
@@ -33,6 +33,7 @@ chdir("../../../");
 	"mmp/scummvm_draci.mmp", 
 	"mmp/scummvm_teenagent.mmp", 
 	"mmp/scummvm_mohawk.mmp", 
+	"mmp/scummvm_hugo.mmp", 
 	# Target Platform Project Files
 	"S60/ScummVM_S60.mmp",  
 	"S60v3/ScummVM_S60v3.mmp", 
@@ -79,9 +80,9 @@ my @excludes_snd = (
 	"fluidsynth.cpp",
 	"i386.cpp",
 	"part.*",
-	"synth.cpp",
 	"tables.cpp",
 	"freeverb.cpp",
+	"synth.cpp",
 	"rate.*"			# not really needed, USE_ARM_SOUND_ASM currently not parsed correctly,
 						# "rate[_arm|_arm_asm].(cpp|s)" will be added later based on WINS/ARM build!
 						# These #defines for compile time are set in portdefs.h
@@ -136,6 +137,7 @@ ParseModule("_sci",	"sci",		\@section_empty);
 ParseModule("_draci",	"draci",	\@section_empty);
 ParseModule("_teenagent","teenagent",	\@section_empty);
 ParseModule("_mohawk"   ,"mohawk",	\@section_empty);
+ParseModule("_hugo"     ,"hugo",	\@section_empty);
 print "
 =======================================================================================
 Done. Enjoy :P
diff --git a/backends/platform/symbian/BuildPackageUpload_LocalSettings.pl b/backends/platform/symbian/BuildPackageUpload_LocalSettings.pl
index a9e7aa562a..b6ebbafe74 100644
--- a/backends/platform/symbian/BuildPackageUpload_LocalSettings.pl
+++ b/backends/platform/symbian/BuildPackageUpload_LocalSettings.pl
@@ -4,27 +4,24 @@
 	@WorkingEngines = qw(
 		scumm agos sky queen gob groovie saga drascula 
 		kyra lure agi touche parallaction cine
-		cruise made m4 tinsel tucker sword1 sword2 draci sci teenagent mohawk
+		cruise made m4 tinsel tucker sword1 sword2 draci sci teenagent mohawk hugo
 	);
 	
 	@WorkingEngines_1st = qw(
 		scumm queen groovie saga drascula 
 		touche parallaction cine
-		cruise made m4 tucker 
+?		cruise made m4 tucker 
 	);
 	
 	@WorkingEngines_2nd = qw(
 		agos sky gob 
 		kyra lure agi tinsel
-		sword1 sword2 draci teenagent
+		sword1 sword2 draci sci teenagent hugo
 	);
 
 	@TestingEngines = qw(
 		 
-	);
-
-	@BrokenEngines = qw(	
-	);
+	);	
 
 	@EnablableEngines = (@WorkingEngines, @TestingEngines);
 
@@ -249,7 +246,7 @@
 		$SDK_RootDirs{'S60v3'}= "G:\\S60v3";
 		#$SDK_RootDirs{'S80'}= "D:\\S80";
 		#$SDK_RootDirs{'S90'}= "D:\\S90";
-		$ECompXL_BinDir= "D:\\ECompXL\\";
+		#$ECompXL_BinDir= "D:\\ECompXL\\";
 		if (0) # so we can turn them on/off easily
 		{
 #			$SDK_LibraryDirs{'ALL'}{'zlib.lib'}		= "C:\\S\\zlib-1.2.2\\epoc";
@@ -305,7 +302,8 @@
 		# the first one includes all SDKs & release-ready engines
 	
 			$VariationSets{'ALL'}{'all'} = "$DefaultFeatures @WorkingEngines @EnablableSubEngines";
-	
+			$VariationSets{'ALL'}{'1St'} = "$DefaultFeatures @WorkingEngines_1st @EnablableSubEngines";
+			$VariationSets{'ALL'}{'2nd'} = "$DefaultFeatures @WorkingEngines_2nd @EnablableSubEngines";
 		# now one for each ready-for-release engine
 		if (0)
 		{
diff --git a/backends/platform/symbian/mmp/scummvm_base.mmp.in b/backends/platform/symbian/mmp/scummvm_base.mmp.in
index c178440fa9..ceb62ec843 100644
--- a/backends/platform/symbian/mmp/scummvm_base.mmp.in
+++ b/backends/platform/symbian/mmp/scummvm_base.mmp.in
@@ -98,6 +98,8 @@ SOURCEPATH ..\..\..\..\sound
 	// empty base file, will be updated by Perl build scripts
 
 //STOP_AUTO_OBJECTS_SOUND_//
+SOURCE softsynth\fmtowns_pc98\towns_pc98_fmsynth.cpp // Included since its excluded by filter
+
 #if defined (WINS)
 SOURCE rate.cpp			// WINS emulator version: add regular .cpp
 #else
diff --git a/backends/platform/symbian/mmp/scummvm_hugo.mmp.in b/backends/platform/symbian/mmp/scummvm_hugo.mmp.in
new file mode 100644
index 0000000000..4d44ebc944
--- /dev/null
+++ b/backends/platform/symbian/mmp/scummvm_hugo.mmp.in
@@ -0,0 +1,64 @@
+/* ScummVM - Graphic Adventure Engine
+ * Copyright (C) 2003-2005 Andreas 'Sprawl' Karlsson - Original EPOC port, ESDL
+ * Copyright (C) 2003-2005 Lars 'AnotherGuest' Persson - Original EPOC port, Audio System
+ * Copyright (C) 2005 Jurgen 'SumthinWicked' Braam - EPOC/CVS maintainer
+ * Copyright (C) 2005-2010 The ScummVM project
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+//
+// EPOC MMP makefile project for ScummVM
+//
+
+// *** Definitions
+
+TARGET          scummvm_hugo.lib
+TARGETTYPE      lib
+OPTION			MSVC /QIfist /Ob1 /Oy /GF // /QIfist disables use of __ftol2 to avoid linker probs with MS libc: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vccore/html/vcrefQIfistSuppress_ftol.asp
+OPTION			GCC -Wno-multichar -Wno-reorder // don't optimize for ARM, platform way too sensitive for that :( just turn off some common warnings
+OPTION			GCCE -Wno-multichar -Wno-reorder -Wno-unused -Wno-format -fsigned-char
+ALWAYS_BUILD_AS_ARM
+
+//START_AUTO_MACROS_SLAVE//
+
+	// empty base file, will be updated by Perl build scripts
+
+//STOP_AUTO_MACROS_SLAVE//
+
+// *** SOURCE files
+
+SOURCEPATH ..\..\..\..\engines\hugo
+
+//START_AUTO_OBJECTS_HUGO_//
+
+	// empty base file, will be updated by Perl build scripts
+
+//STOP_AUTO_OBJECTS_HUGO_//
+
+// *** Include paths
+
+USERINCLUDE     ..\..\..\..\engines
+USERINCLUDE     ..\..\..\.. ..\..\..\..\common ..\..\..\..\gui ..\..\..\..\sound ..\src
+SYSTEMINCLUDE	\epoc32\include\ZLIB // before \epoc32\include because symbian already has older version
+SYSTEMINCLUDE   \epoc32\include \epoc32\include\libc ..\src
diff --git a/backends/platform/wii/osystem.h b/backends/platform/wii/osystem.h
index eaaf616538..ed33b43a81 100644
--- a/backends/platform/wii/osystem.h
+++ b/backends/platform/wii/osystem.h
@@ -117,6 +117,7 @@ private:
 	void deinitGfx();
 	void updateScreenResolution();
 	void switchVideoMode(int mode);
+	bool needsScreenUpdate();
 
 	void initSfx();
 	void deinitSfx();
diff --git a/backends/platform/wii/osystem_events.cpp b/backends/platform/wii/osystem_events.cpp
index 488834fc20..5d0bca453f 100644
--- a/backends/platform/wii/osystem_events.cpp
+++ b/backends/platform/wii/osystem_events.cpp
@@ -300,6 +300,9 @@ bool OSystem_Wii::pollEvent(Common::Event &event) {
 		return true;
 	}
 
+	if (needsScreenUpdate())
+		updateScreen();
+
 	u32 bd = 0, bh = 0, bu = 0;
 
 	if (PAD_ScanPads() & 1) {
diff --git a/backends/platform/wii/osystem_gfx.cpp b/backends/platform/wii/osystem_gfx.cpp
index 3ce6343800..09575bb83d 100644
--- a/backends/platform/wii/osystem_gfx.cpp
+++ b/backends/platform/wii/osystem_gfx.cpp
@@ -441,6 +441,22 @@ void OSystem_Wii::copyRectToScreen(const byte *buf, int pitch, int x, int y,
 	_gameDirty = true;
 }
 
+bool OSystem_Wii::needsScreenUpdate() {
+	if (getMillis() - _lastScreenUpdate < 1000 / MAX_FPS)
+		return false;
+
+	if (_gameRunning && _gameDirty)
+		return true;
+
+	if (_overlayVisible && _overlayDirty)
+		return true;
+
+	if (_mouseVisible && _texMouse.palette && _cursorPaletteDirty)
+		return true;
+
+	return false;
+}
+
 void OSystem_Wii::updateScreen() {
 	static f32 ar;
 	static gfx_screen_coords_t cc;