DREAMWEB: Remove Extras segment

8 files changed, 127 insertions, 105 deletions

diff --git a/engines/dreamweb/backdrop.cpp b/engines/dreamweb/backdrop.cpp
index 0dface9acb..e6f5e9ab42 100644
--- a/engines/dreamweb/backdrop.cpp
+++ b/engines/dreamweb/backdrop.cpp
@@ -259,8 +259,8 @@ void DreamBase::showAllEx() {
 
 	_exList.clear();
 
-	DynObject *objects = (DynObject *)getSegment(data.word(kExtras)).ptr(kExdata, sizeof(DynObject));
-	const Frame *frameBase = (const Frame *)getSegment(data.word(kExtras)).ptr(0, 0);
+	DynObject *objects = _exData;
+	const GraphicsFile &frameBase = _exFrames;
 	for (size_t i = 0; i < count; ++i) {
 		DynObject *object = objects + i;
 		if (object->mapad[0] == 0xff)
@@ -273,7 +273,7 @@ void DreamBase::showAllEx() {
 		uint8 width, height;
 		ObjPos objPos;
 		uint16 currentFrame = 3 * i;
-		calcFrFrame(frameBase[currentFrame], &width, &height, x, y, &objPos);
+		calcFrFrame(frameBase._frames[currentFrame], &width, &height, x, y, &objPos);
 		if ((width != 0) || (height != 0)) {
 			assert(currentFrame < 256);
 			showFrame(frameBase, x + data.word(kMapadx), y + data.word(kMapady), currentFrame, 0);
diff --git a/engines/dreamweb/dreambase.h b/engines/dreamweb/dreambase.h
index 8dd80836e6..d07e74d3f0 100644
--- a/engines/dreamweb/dreambase.h
+++ b/engines/dreamweb/dreambase.h
@@ -51,6 +51,7 @@ const unsigned int kLenOfMapStore = 22*8*20*8;
 const unsigned int kMapWidth = 66;
 const unsigned int kMapHeight = 60;
 const unsigned int kLengthOfMap = kMapWidth * kMapHeight;
+const unsigned int kNumExObjects = 114;
 
 /**
  * This class is one of the parent classes of DreamGenContext. Its sole purpose
@@ -146,6 +147,12 @@ protected:
 	GraphicsFile _setFrames;
 	GraphicsFile _freeFrames;
 
+	// Extras segment (NB: this is saved)
+	GraphicsFile _exFrames;
+	DynObject _exData[kNumExObjects];
+	uint16 _exTextdatLE[kNumExObjects+2]; // TODO: Convert into TextFile
+	char _exText[18000];
+
 public:
 	DreamBase(DreamWeb::DreamWebEngine *en);
 
@@ -845,10 +852,10 @@ public:
 	void setMode();
 	void showPCX(const Common::String &name);
 	void showFrameInternal(const uint8 *pSrc, uint16 x, uint16 y, uint8 effectsFlag, uint8 width, uint8 height);
-	void showFrame(const GraphicsFile &frameData, uint16 x, uint16 y, uint16 frameNumber, uint8 effectsFlag, uint8 *width, uint8 *height);
-	void showFrame(const GraphicsFile &frameData, uint16 x, uint16 y, uint16 frameNumber, uint8 effectsFlag);
 	void showFrame(const Frame *frameData, uint16 x, uint16 y, uint16 frameNumber, uint8 effectsFlag, uint8 *width, uint8 *height);
 	void showFrame(const Frame *frameData, uint16 x, uint16 y, uint16 frameNumber, uint8 effectsFlag);
+	void showFrame(const GraphicsFile &frameData, uint16 x, uint16 y, uint16 frameNumber, uint8 effectsFlag, uint8 *width, uint8 *height);
+	void showFrame(const GraphicsFile &frameData, uint16 x, uint16 y, uint16 frameNumber, uint8 effectsFlag);
 	bool pixelCheckSet(const ObjPos *pos, uint8 x, uint8 y);
 	void loadPalFromIFF();
 	void createPanel();
diff --git a/engines/dreamweb/dreamgen.cpp b/engines/dreamweb/dreamgen.cpp
index 4378841d83..401140e4f3 100644
--- a/engines/dreamweb/dreamgen.cpp
+++ b/engines/dreamweb/dreamgen.cpp
@@ -65,13 +65,13 @@ void DreamGenContext::__start() {
 		//0x0100: .... .... .... ....
 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
 		//0x0110: .... .... .... ....
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 
+		0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 
 		//0x0120: .... .... .... ....
-		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x17, 0x00, 0x00, 0x00, 
+		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 
 		//0x0130: .... .... .... ....
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 
 		//0x0140: .... .... .... ....
-		0x00, 0xff, };
+		};
 	ds.assign(src, src + sizeof(src));
 	dreamweb(); 
 }
diff --git a/engines/dreamweb/dreamgen.h b/engines/dreamweb/dreamgen.h
index 41b30100ab..673800774a 100644
--- a/engines/dreamweb/dreamgen.h
+++ b/engines/dreamweb/dreamgen.h
@@ -249,42 +249,41 @@ static const uint16 kWongame = 274;
 static const uint16 kLasthardkey = 275;
 static const uint16 kBufferin = 276;
 static const uint16 kBufferout = 278;
-static const uint16 kExtras = 280;
-static const uint16 kWorkspace = 282;
-static const uint16 kMainsprites = 284;
-static const uint16 kBackdrop = 286;
-static const uint16 kRecordspace = 288;
-static const uint16 kFreedat = 290;
-static const uint16 kSetdat = 292;
-static const uint16 kReel1 = 294;
-static const uint16 kReel2 = 296;
-static const uint16 kReel3 = 298;
-static const uint16 kRoomdesc = 300;
-static const uint16 kFreedesc = 302;
-static const uint16 kSetdesc = 304;
-static const uint16 kBlockdesc = 306;
-static const uint16 kSetframes = 308;
-static const uint16 kFreeframes = 310;
-static const uint16 kPeople = 312;
-static const uint16 kReels = 314;
-static const uint16 kBlinkframe = 316;
-static const uint16 kBlinkcount = 317;
-static const uint16 kReasseschanges = 318;
-static const uint16 kPointerspath = 319;
-static const uint16 kManspath = 320;
-static const uint16 kPointerfirstpath = 321;
-static const uint16 kFinaldest = 322;
-static const uint16 kDestination = 323;
-static const uint16 kLinestartx = 324;
-static const uint16 kLinestarty = 326;
-static const uint16 kLineendx = 328;
-static const uint16 kLineendy = 330;
-static const uint16 kLinepointer = 332;
-static const uint16 kLinedirection = 333;
-static const uint16 kLinelength = 334;
-static const uint16 kCh0playing = 335;
-static const uint16 kCh0repeat = 336;
-static const uint16 kCh1playing = 337;
+static const uint16 kWorkspace = 280;
+static const uint16 kMainsprites = 282;
+static const uint16 kBackdrop = 284;
+static const uint16 kRecordspace = 286;
+static const uint16 kFreedat = 288;
+static const uint16 kSetdat = 290;
+static const uint16 kReel1 = 292;
+static const uint16 kReel2 = 294;
+static const uint16 kReel3 = 296;
+static const uint16 kRoomdesc = 298;
+static const uint16 kFreedesc = 300;
+static const uint16 kSetdesc = 302;
+static const uint16 kBlockdesc = 304;
+static const uint16 kSetframes = 306;
+static const uint16 kFreeframes = 308;
+static const uint16 kPeople = 310;
+static const uint16 kReels = 312;
+static const uint16 kBlinkframe = 314;
+static const uint16 kBlinkcount = 315;
+static const uint16 kReasseschanges = 316;
+static const uint16 kPointerspath = 317;
+static const uint16 kManspath = 318;
+static const uint16 kPointerfirstpath = 319;
+static const uint16 kFinaldest = 320;
+static const uint16 kDestination = 321;
+static const uint16 kLinestartx = 322;
+static const uint16 kLinestarty = 324;
+static const uint16 kLineendx = 326;
+static const uint16 kLineendy = 328;
+static const uint16 kLinepointer = 330;
+static const uint16 kLinedirection = 331;
+static const uint16 kLinelength = 332;
+static const uint16 kCh0playing = 333;
+static const uint16 kCh0repeat = 334;
+static const uint16 kCh1playing = 335;
 static const uint16 kBlocktextdat = (0);
 static const uint16 kPersonframes = (0);
 static const uint16 kDebuglevel1 = (0);
diff --git a/engines/dreamweb/object.cpp b/engines/dreamweb/object.cpp
index 4f9d091da6..3054a61d68 100644
--- a/engines/dreamweb/object.cpp
+++ b/engines/dreamweb/object.cpp
@@ -83,12 +83,11 @@ void DreamBase::obToInv(uint8 index, uint8 flag, uint16 x, uint16 y) {
 	if (index == 0xff)
 		return;
 
-	if (flag == kExObjectType) {
-		Frame *extras = (Frame *)getSegment(data.word(kExtras)).ptr(0, 0);
-		showFrame(extras, x + 18, y + 19, 3 * index + 1, 128);
-	} else {
+	if (flag == kExObjectType)
+		showFrame(_exFrames, x + 18, y + 19, 3 * index + 1, 128);
+	else
 		showFrame(_freeFrames, x + 18, y + 19, 3 * index + 1, 128);
-	}
+
 	const DynObject *object = (const DynObject *)getAnyAdDir(index, flag);
 	bool worn = isItWorn(object);
 	if (worn)
@@ -99,12 +98,10 @@ void DreamBase::obPicture() {
 	if (data.byte(kObjecttype) == kSetObjectType1)
 		return;
 	uint8 frame = 3 * data.byte(kCommand) + 1;
-	if (data.byte(kObjecttype) == kExObjectType) {
-		const Frame *frames = (const Frame *)getSegment(data.word(kExtras)).ptr(0, 0);
-		showFrame(frames, 160, 68, frame, 0x80);
-	} else {
+	if (data.byte(kObjecttype) == kExObjectType)
+		showFrame(_exFrames, 160, 68, frame, 0x80);
+	else
 		showFrame(_freeFrames, 160, 68, frame, 0x80);
-	}
 }
 
 void DreamBase::obIcons() {
@@ -254,12 +251,12 @@ void DreamBase::inventory() {
 }
 
 void DreamBase::transferText(uint8 from, uint8 to) {
-	getSegment(data.word(kExtras)).word(kExtextdat + 2*to) = data.word(kExtextpos);
+	WRITE_LE_UINT16(&_exTextdatLE[to], data.word(kExtextpos));
 	uint16 freeTextOffset = 2*from;
 	uint16 srcOffset = getSegment(data.word(kFreedesc)).word(kFreetextdat + freeTextOffset);
 
 	const char *src = (const char *)getSegment(data.word(kFreedesc)).ptr(kFreetext + srcOffset, 0);
-	char *dst = (char *)getSegment(data.word(kExtras)).ptr(kExtext + data.word(kExtextpos), 0);
+	char *dst = _exText + data.word(kExtextpos);
 
 	size_t len = strlen(src);
 	memcpy(dst, src, len + 1);
@@ -429,47 +426,47 @@ void DreamBase::setPickup() {
 }
 
 void DreamBase::deleteExFrame(uint8 frameNum) {
-	Frame *frame = (Frame *)getSegment(data.word(kExtras)).ptr(kExframedata + sizeof(Frame)*frameNum, sizeof(Frame));
+	Frame *frame = &_exFrames._frames[frameNum];
 
 	uint16 frameSize = frame->width * frame->height;
 	// Note: the original asm didn't subtract frameSize from remainder
 	uint16 remainder = kExframeslen - frame->ptr() - frameSize;
-	uint16 startOff = kExframes + frame->ptr();
+	uint16 startOff = frame->ptr();
 	uint16 endOff = startOff + frameSize;
 
 	// Shift frame data after this one down
-	memmove(getSegment(data.word(kExtras)).ptr(startOff, remainder), getSegment(data.word(kExtras)).ptr(endOff, remainder), remainder);
+	memmove(&_exFrames._data[startOff], &_exFrames._data[endOff], remainder);
 
 	// Combined frame data is now frameSize smaller
 	data.word(kExframepos) -= frameSize;
 
 	// Adjust all frame pointers pointing into the shifted data
 	for (unsigned int i = 0; i < 3*kNumexobjects; ++i) {
-		frame = (Frame *)getSegment(data.word(kExtras)).ptr(kExframedata + sizeof(Frame)*i, sizeof(Frame));
+		frame = &_exFrames._frames[i];
 		if (frame->ptr() >= startOff)
 			frame->setPtr(frame->ptr() - frameSize);
 	}
 }
 
 void DreamBase::deleteExText(uint8 textNum) {
-	uint16 offset = getSegment(data.word(kExtras)).word(kExtextdat + 2*textNum);
+	uint16 offset = READ_LE_UINT16(&_exTextdatLE[textNum]);
 
-	uint16 startOff = kExtext + offset;
-	uint16 textSize = strlen((char *)getSegment(data.word(kExtras)).ptr(startOff, 0)) + 1;
+	uint16 startOff = offset;
+	uint16 textSize = strlen(&_exText[startOff]) + 1;
 	uint16 endOff = startOff + textSize;
 	uint16 remainder = kExtextlen - offset - textSize;
 
 	// Shift text data after this one down
-	memmove(getSegment(data.word(kExtras)).ptr(startOff, remainder), getSegment(data.word(kExtras)).ptr(endOff, remainder), remainder);
+	memmove(&_exText[startOff], &_exText[endOff], remainder);
 
 	// Combined text data is now frameSize smaller
 	data.word(kExtextpos) -= textSize;
 
 	// Adjust all text pointers pointing into the shifted data
 	for (unsigned int i = 0; i < kNumexobjects; ++i) {
-		uint16 t = getSegment(data.word(kExtras)).word(kExtextdat + 2*i);
+		uint16 t = READ_LE_UINT16(&_exTextdatLE[i]);
 		if (t >= offset + textSize)
-			getSegment(data.word(kExtras)).word(kExtextdat + 2*i) = t - textSize;
+			WRITE_LE_UINT16(&_exTextdatLE[i], t - textSize);
 	}
 }
 
@@ -591,22 +588,26 @@ void DreamBase::purgeALocation(uint8 index) {
 }
 
 const uint8 *DreamBase::getObTextStart() {
-	uint16 textSeg, textDatOff, textOff;
+	const uint8 *textBase;
+	const uint8 *text;
+	uint16 textOff;
 	if (data.byte(kObjecttype) == kFreeObjectType) {
-		textSeg = data.word(kFreedesc);
-		textDatOff = kFreetextdat;
+		uint16 textSeg = data.word(kFreedesc);
+		uint16 textDatOff = kFreetextdat;
 		textOff = kFreetext;
+		textBase = getSegment(textSeg).ptr(textOff, 0);
+		text = textBase + getSegment(textSeg).word(textDatOff + 2*data.byte(kCommand));
 	} else if (data.byte(kObjecttype) == kSetObjectType1) {
-		textSeg = data.word(kSetdesc);
-		textDatOff = kSettextdat;
+		uint16 textSeg = data.word(kSetdesc);
+		uint16 textDatOff = kSettextdat;
 		textOff = kSettext;
+		textBase = getSegment(textSeg).ptr(textOff, 0);
+		text = textBase + getSegment(textSeg).word(textDatOff + 2*data.byte(kCommand));
 	} else {
-		textSeg = data.word(kExtras);
-		textDatOff = kExtextdat;
+		textBase = (const uint8 *)_exText;
 		textOff = kExtext;
+		text = textBase + READ_LE_UINT16(&_exTextdatLE[data.byte(kCommand)]);
 	}
-	const uint8 *textBase = getSegment(textSeg).ptr(textOff, 0);
-	const uint8 *text = textBase + getSegment(textSeg).word(textDatOff + 2*data.byte(kCommand));
 
 	if (data.byte(kObjecttype) != kSetObjectType1)
 		return text;
@@ -635,6 +636,7 @@ const uint8 *DreamBase::getObTextStart() {
 				text++;
 
 				// arbitrary give-up counter
+				// FIXME: Make this more precise to avoid reading out of bounds
 				if (text - (textBase - textOff) >= 8000) {
 					warning("Object description for %d/%d not found", data.byte(kObjecttype), data.byte(kCommand));
 					return obname;
diff --git a/engines/dreamweb/saveload.cpp b/engines/dreamweb/saveload.cpp
index 843bee77ac..2c659c4c6e 100644
--- a/engines/dreamweb/saveload.cpp
+++ b/engines/dreamweb/saveload.cpp
@@ -476,7 +476,14 @@ void DreamBase::savePosition(unsigned int slot, const char *descbuf) {
 	outSaveFile->write((const uint8 *)&header, sizeof(FileHeader));
 	outSaveFile->write(descbuf, len[0]);
 	outSaveFile->write(data.ptr(kStartvars, len[1]), len[1]);
-	outSaveFile->write(getSegment(data.word(kExtras)).ptr(kExframedata, len[2]), len[2]);
+
+	// the Extras segment:
+	outSaveFile->write((const uint8 *)_exFrames._frames, 2080);
+	outSaveFile->write((const uint8 *)_exFrames._data, kExframeslen);
+	outSaveFile->write((const uint8 *)_exData, sizeof(DynObject)*kNumexobjects);
+	outSaveFile->write((const uint8 *)_exTextdatLE, 2*(kNumExObjects+2));
+	outSaveFile->write((const uint8 *)_exText, kExtextlen);
+
 	outSaveFile->write(_listOfChanges, len[3]);
 
 	// len[4] == 48, which is sizeof(Room) plus 16 for 'Roomscango'
@@ -542,7 +549,14 @@ void DreamBase::loadPosition(unsigned int slot) {
 		inSaveFile->read(namebuf, 17);
 	}
 	inSaveFile->read(data.ptr(kStartvars, len[1]), len[1]);
-	inSaveFile->read(getSegment(data.word(kExtras)).ptr(kExframedata, len[2]), len[2]);
+
+	// the Extras segment:
+	inSaveFile->read((uint8 *)_exFrames._frames, 2080);
+	inSaveFile->read((uint8 *)_exFrames._data, kExframeslen);
+	inSaveFile->read((uint8 *)_exData, sizeof(DynObject)*kNumexobjects);
+	inSaveFile->read((uint8 *)_exTextdatLE, 2*(kNumExObjects+2));
+	inSaveFile->read((uint8 *)_exText, kExtextlen);
+
 	inSaveFile->read(_listOfChanges, len[3]);
 
 	// len[4] == 48, which is sizeof(Room) plus 16 for 'Roomscango'
diff --git a/engines/dreamweb/stubs.cpp b/engines/dreamweb/stubs.cpp
index 9ef7dda581..084aa76da7 100644
--- a/engines/dreamweb/stubs.cpp
+++ b/engines/dreamweb/stubs.cpp
@@ -650,6 +650,10 @@ done: // The engine will need some cleaner finalization, let's put it here for n
 	_tempCharset.clear();
 	_mainSprites.clear();
 
+	_exFrames.clear();
+	_setFrames.clear();
+	_freeFrames.clear();
+
 	_textFile1.clear();
 	_textFile2.clear();
 	_textFile3.clear();
@@ -1226,8 +1230,8 @@ const uint8 *DreamBase::findObName(uint8 type, uint8 index) {
 		uint16 offset = getSegment(data.word(kPeople)).word(kPersontxtdat + i) + kPersontext;
 		return getSegment(data.word(kPeople)).ptr(offset, 0);
 	} else if (type == 4) {
-		uint16 offset = getSegment(data.word(kExtras)).word(kExtextdat + index * 2) + kExtext;
-		return getSegment(data.word(kExtras)).ptr(offset, 0);
+		uint16 offset = READ_LE_UINT16(&_exTextdatLE[index]);
+		return (const uint8 *)_exText + offset;
 	} else if (type == 2) {
 		uint16 offset = getSegment(data.word(kFreedesc)).word(kFreetextdat + index * 2) + kFreetext;
 		return getSegment(data.word(kFreedesc)).ptr(offset, 0);
@@ -1313,7 +1317,7 @@ DynObject *DreamBase::getFreeAd(uint8 index) {
 }
 
 DynObject *DreamBase::getExAd(uint8 index) {
-	return (DynObject *)getSegment(data.word(kExtras)).ptr(kExdata, 0) + index;
+	return &_exData[index];
 }
 
 DynObject *DreamBase::getEitherAdCPP() {
@@ -1374,7 +1378,7 @@ void DreamBase::doChange(uint8 index, uint8 value, uint8 type) {
 }
 
 void DreamBase::deleteTaken() {
-	const DynObject *extraObjects = (const DynObject *)getSegment(data.word(kExtras)).ptr(kExdata, 0);
+	const DynObject *extraObjects = _exData;
 	DynObject *freeObjects = (DynObject *)getSegment(data.word(kFreedat)).ptr(0, 0);
 	for (size_t i = 0; i < kNumexobjects; ++i) {
 		uint8 location = extraObjects[i].initialLocation;
@@ -1386,7 +1390,7 @@ void DreamBase::deleteTaken() {
 }
 
 uint8 DreamBase::getExPos() {
-	DynObject *objects = (DynObject *)getSegment(data.word(kExtras)).ptr(kExdata, sizeof(DynObject));
+	DynObject *objects = _exData;
 	for (size_t i = 0; i < kNumexobjects; ++i) {
 		if (objects[i].mapad[0] == 0xff)
 			return i;
@@ -1565,13 +1569,13 @@ void DreamBase::showPointer() {
 	uint16 y = data.word(kMousey);
 	data.word(kOldpointery) = data.word(kMousey);
 	if (data.byte(kPickup) == 1) {
-		const Frame *frame;
-		if (data.byte(kObjecttype) != kExObjectType) {
-			frame = &_freeFrames._frames[(3 * data.byte(kItemframe) + 1)];
-		} else {
-			const Frame *frames = (const Frame *)getSegment(data.word(kExtras)).ptr(0, 0);
-			frame = frames + (3 * data.byte(kItemframe) + 1);
-		}
+		const GraphicsFile *frames;
+		if (data.byte(kObjecttype) != kExObjectType)
+			frames = &_freeFrames;
+		else
+			frames = &_exFrames;
+		const Frame *frame = &frames->_frames[(3 * data.byte(kItemframe) + 1)];
+
 		uint8 width = frame->width;
 		uint8 height = frame->height;
 		if (width < 12)
@@ -1585,12 +1589,7 @@ void DreamBase::showPointer() {
 		data.word(kOldpointerx) = xMin;
 		data.word(kOldpointery) = yMin;
 		multiGet(_pointerBack, xMin, yMin, width, height);
-		if (data.byte(kObjecttype) != kExObjectType) {
-			showFrame(_freeFrames, x, y, 3 * data.byte(kItemframe) + 1, 128);
-		} else {
-			const Frame *frames = (const Frame *)getSegment(data.word(kExtras)).ptr(0, 0);
-			showFrame(frames, x, y, 3 * data.byte(kItemframe) + 1, 128);
-		}
+		showFrame(*frames, x, y, 3 * data.byte(kItemframe) + 1, 128);
 		showFrame(_icons1, x, y, 3, 128);
 	} else {
 		const Frame *frame = &_icons1._frames[data.byte(kPointerframe) + 20];
@@ -2498,7 +2497,8 @@ void DreamBase::drawFloor() {
 }
 
 void DreamBase::allocateBuffers() {
-	data.word(kExtras) = allocateMem(kLengthofextra/16);
+	_exFrames.clear();
+	_exFrames._data = new uint8[kExframeslen];
 	data.word(kFreedat) = allocateMem(kFreedatlen/16);
 	data.word(kSetdat) = allocateMem(kSetdatlen/16);
 }
@@ -3604,8 +3604,6 @@ void DreamBase::lookAtCard() {
 }
 
 void DreamBase::clearBuffers() {
-	memset(getSegment(data.word(kExtras)).ptr(0, kLengthofextra), 0xFF, kLengthofextra);
-
 	memcpy(_initialVars, data.ptr(kStartvars, kLengthofvars), kLengthofvars);
 
 	clearChanges();
@@ -3621,7 +3619,11 @@ void DreamBase::clearChanges() {
 	data.word(kExframepos) = 0;
 	data.word(kExtextpos) = 0;
 
-	memset(getSegment(data.word(kExtras)).ptr(0, kLengthofextra), 0xFF, kLengthofextra);
+	memset(_exFrames._frames, 0xFF, 2080);
+	memset(_exFrames._data, 0xFF, kExframeslen);
+	memset(_exData, 0xFF, sizeof(DynObject) * kNumexobjects);
+	memset(_exTextdatLE, 0xFF, 2*(kNumexobjects+2));
+	memset(_exText, 0xFF, kExtextlen);
 
 	const uint8 initialRoomsCanGo[] = { 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
 
@@ -3710,7 +3712,7 @@ void DreamBase::emergencyPurge() {
 }
 
 void DreamBase::purgeAnItem() {
-	const DynObject *extraObjects = (const DynObject *)getSegment(data.word(kExtras)).ptr(kExdata, 0);
+	const DynObject *extraObjects = _exData;
 
 	for (size_t i = 0; i < kNumexobjects; ++i) {
 		if (extraObjects[i].mapad[0] && extraObjects[i].id[0] == 255 &&
diff --git a/engines/dreamweb/vgagrafx.cpp b/engines/dreamweb/vgagrafx.cpp
index 19abc2b35d..417ccceab3 100644
--- a/engines/dreamweb/vgagrafx.cpp
+++ b/engines/dreamweb/vgagrafx.cpp
@@ -453,9 +453,7 @@ void DreamBase::showPanel() {
 
 void DreamBase::transferFrame(uint8 from, uint8 to, uint8 offset) {
 	const Frame &freeFrame = _freeFrames._frames[3*from + offset];
-
-	Frame *exFrames = (Frame *)getSegment(data.word(kExtras)).ptr(kExframedata, 0);
-	Frame &exFrame = exFrames[3*to + offset];
+	Frame &exFrame = _exFrames._frames[3*to + offset];
 
 	exFrame.width = freeFrame.width;
 	exFrame.height = freeFrame.height;
@@ -464,7 +462,7 @@ void DreamBase::transferFrame(uint8 from, uint8 to, uint8 offset) {
 	uint16 byteCount = freeFrame.width * freeFrame.height;
 
 	const uint8 *src = _freeFrames.getFrameData(3*from + offset);
-	uint8 *dst = getSegment(data.word(kExtras)).ptr(kExframes + data.word(kExframepos), byteCount);
+	uint8 *dst = _exFrames._data + data.word(kExframepos);
 	memcpy(dst, src, byteCount);
 
 	exFrame.setPtr(data.word(kExframepos));