KYRA: (EOB) - cleaning up CGA/EGA graphics code

- fix some glitches in CGA rendering mode
- revert most of 66da4777d476c6a9fc2a13351e3b30afc748fd94 (instead of having lots of EGA dithering routines throughout the whole EOB code we're going to implement some post-processing code in updateScreen())

15 files changed, 155 insertions, 441 deletions

diff --git a/engines/kyra/chargen.cpp b/engines/kyra/chargen.cpp
index 54e1abcc2c..23274349e7 100644
--- a/engines/kyra/chargen.cpp
+++ b/engines/kyra/chargen.cpp
@@ -1496,7 +1496,7 @@ TransferPartyWiz::~TransferPartyWiz() {
 }
 
 bool TransferPartyWiz::start() {
-	_screen->copyPage(0, _vm->_useHiResDithering ? 1 : 12);
+	_screen->copyPage(0, 12);
 
 	if (!selectAndLoadTransferFile())
 		return false;
@@ -1536,7 +1536,7 @@ bool TransferPartyWiz::start() {
 
 bool TransferPartyWiz::selectAndLoadTransferFile() {
 	do {
-		_screen->copyPage(_vm->_useHiResDithering ? 1 : 12, 0);
+		_screen->copyPage(12, 0);
 		 if (transferFileDialogue(_vm->_savegameFilename))
 			 break;
 	} while (_vm->_gui->confirmDialogue2(15, 68, 1));
@@ -1566,7 +1566,7 @@ bool TransferPartyWiz::selectAndLoadTransferFile() {
 		return false;
 
 	Common::String target = _vm->_gui->transferTargetMenu(eobTargets);
-	_screen->copyPage(_vm->_useHiResDithering ? 1 : 12, 0);
+	_screen->copyPage(12, 0);
 
 	if (target.empty())
 		return true;
@@ -1579,10 +1579,10 @@ bool TransferPartyWiz::selectAndLoadTransferFile() {
 			return true;
 	}
 
-	_screen->copyPage(_vm->_useHiResDithering ? 1 : 12, 0);
+	_screen->copyPage(12, 0);
 
 	bool result = _vm->_gui->transferFileMenu(target, dest);
-	_screen->copyPage(_vm->_useHiResDithering ? 1 : 12, 0);
+	_screen->copyPage(12, 0);
 
 	return result;
 }
diff --git a/engines/kyra/darkmoon.cpp b/engines/kyra/darkmoon.cpp
index 16bd3dad58..054b2b285e 100644
--- a/engines/kyra/darkmoon.cpp
+++ b/engines/kyra/darkmoon.cpp
@@ -158,10 +158,7 @@ void DarkMoonEngine::generateMonsterPalettes(const char *file, int16 monsterInde
 		int colx = 302 + 3 * i;
 
 		for (int ii = 0; ii < 16; ii++) {
-			// Don't use getPagePixel() here, since in EGA mode it will try to
-			// undither the pixel (although the shape bitmap is undithered already)
-			uint8 col = _screen->getCPagePtr(_screen->_curPage | 1)[(184 + ii) * Screen::SCREEN_W + colx];
-
+			uint8 col = _screen->getPagePixel(_screen->_curPage, colx, 184 + ii);
 			int iii = 0;
 			for (; iii < 16; iii++) {
 				if (tmpPal[iii] == col) {
@@ -178,9 +175,7 @@ void DarkMoonEngine::generateMonsterPalettes(const char *file, int16 monsterInde
 			memcpy(tmpPal, _monsterShapes[dci] + 4, 16);
 
 			for (int iii = 0; iii < 16; iii++) {
-				// Don't use getPagePixel() here, since in EGA mode it will try to
-				// undither the pixel (although the shape bitmap is undithered already)
-				uint8 col = _screen->getCPagePtr(_screen->_curPage | 1)[(184 + iii) * Screen::SCREEN_W + colx + ii];
+				uint8 col = _screen->getPagePixel(_screen->_curPage, colx + ii, 184 + iii);
 				if (newPal[iii])
 					tmpPal[newPal[iii]] = col;
 			}
diff --git a/engines/kyra/eobcommon.cpp b/engines/kyra/eobcommon.cpp
index fadb1066e0..6c899b8c8e 100644
--- a/engines/kyra/eobcommon.cpp
+++ b/engines/kyra/eobcommon.cpp
@@ -57,7 +57,7 @@ EoBCoreEngine::EoBCoreEngine(OSystem *system, const GameFlags &flags)
 	_configMouse = true;
 	_loading = false;
 
-	_useHiResDithering = false;
+	_enableHiResDithering = false;
 
 	_envAudioTimer = 0;
 	_flashShapeTimer = 0;
@@ -371,7 +371,7 @@ Common::Error EoBCoreEngine::init() {
 	if (ConfMan.hasKey("render_mode"))
 		_configRenderMode = Common::parseRenderMode(ConfMan.get("render_mode"));
 
-	_useHiResDithering = (_configRenderMode == Common::kRenderEGA && _flags.useHiRes);
+	_enableHiResDithering = (_configRenderMode == Common::kRenderEGA && _flags.useHiRes);
 
 	_screen = new Screen_EoB(this, _system);
 	assert(_screen);
@@ -417,12 +417,6 @@ Common::Error EoBCoreEngine::init() {
 	_screen->loadFont(Screen::FID_6_FNT, "FONT6.FNT");
 	_screen->loadFont(Screen::FID_8_FNT, "FONT8.FNT");
 
-	if (_useHiResDithering) {
-		_vcnBlockWidth <<= 1;
-		_vcnBlockHeight <<= 1;
-		SWAP(_vcnFlip0, _vcnFlip1);
-	}
-
 	Common::Error err = KyraRpgEngine::init();
 	if (err.getCode() != Common::kNoError)
 		return err;
@@ -1748,7 +1742,7 @@ void EoBCoreEngine::seq_portal() {
 bool EoBCoreEngine::checkPassword() {
 	char answ[20];
 	Screen::FontId of = _screen->setFont(Screen::FID_8_FNT);
-	_screen->copyPage(0, _useHiResDithering ? 4 : 10);
+	_screen->copyPage(0, 10);
 
 	_screen->setScreenDim(13);
 	gui_drawBox(_screen->_curDim->sx << 3, _screen->_curDim->sy, _screen->_curDim->w << 3, _screen->_curDim->h, guiSettings()->colors.frame1, guiSettings()->colors.frame2, -1);
@@ -1775,7 +1769,7 @@ bool EoBCoreEngine::checkPassword() {
 
 	_screen->modifyScreenDim(13, _screen->_curDim->sx - 1, _screen->_curDim->sy - 2, _screen->_curDim->w + 2, _screen->_curDim->h + 16);
 	_screen->setFont(of);
-	_screen->copyPage(_useHiResDithering ? 4 : 10, 0);
+	_screen->copyPage(10, 0);
 	return true;
 }
 
diff --git a/engines/kyra/eobcommon.h b/engines/kyra/eobcommon.h
index f60e755dd7..aca3a96d8c 100644
--- a/engines/kyra/eobcommon.h
+++ b/engines/kyra/eobcommon.h
@@ -845,7 +845,7 @@ protected:
 	const uint8 *_cgaMappingLevel[5];
 	const uint8 *_cgaLevelMappingIndex;
 
-	bool _useHiResDithering;
+	bool _enableHiResDithering;
 
 	// Default parameters will import all present original save files and push them to the top of the save dialog.
 	bool importOriginalSaveFile(int destSlot, const char *sourceFile = 0);
diff --git a/engines/kyra/gui_eob.cpp b/engines/kyra/gui_eob.cpp
index e3c0743e5c..6668644f0c 100644
--- a/engines/kyra/gui_eob.cpp
+++ b/engines/kyra/gui_eob.cpp
@@ -777,11 +777,11 @@ int EoBCoreEngine::clickedCamp(Button *button) {
 	}
 
 	_screen->copyPage(0, 7);
-	_screen->copyRegion(0, 120, 0, 0, 176, 24, 0, _useHiResDithering ? 1 : 12, Screen::CR_NO_P_CHECK);
+	_screen->copyRegion(0, 120, 0, 0, 176, 24, 0, 12, Screen::CR_NO_P_CHECK);
 
 	_gui->runCampMenu();
 
-	_screen->copyRegion(0, 0, 0, 120, 176, 24, _useHiResDithering ? 1 : 12, 2, Screen::CR_NO_P_CHECK);
+	_screen->copyRegion(0, 0, 0, 120, 176, 24, 12, 2, Screen::CR_NO_P_CHECK);
 	_screen->setScreenDim(cd);
 	drawScene(0);
 
@@ -1170,7 +1170,7 @@ int EoBCoreEngine::clickedSceneSpecial(Button *button) {
 
 int EoBCoreEngine::clickedSpellbookAbort(Button *button) {
 	_updateFlags = 0;
-	_screen->copyRegion(0, 0, 64, 121, 112, 56, _useHiResDithering ? 4 : 10, 0, Screen::CR_NO_P_CHECK);
+	_screen->copyRegion(0, 0, 64, 121, 112, 56, 10, 0, Screen::CR_NO_P_CHECK);
 	_screen->updateScreen();
 	gui_drawCompass(true);
 	gui_toggleButtons();
@@ -2172,7 +2172,7 @@ void GUI_EoB::runCampMenu() {
 				if (cnt > 4) {
 					_vm->dropCharacter(selectCharacterDialogue(53));
 					_vm->gui_drawPlayField(false);
-					_screen->copyRegion(0, 120, 0, 0, 176, 24, 0, _vm->_useHiResDithering ? 1 : 12, Screen::CR_NO_P_CHECK);
+					_screen->copyRegion(0, 120, 0, 0, 176, 24, 0, 12, Screen::CR_NO_P_CHECK);
 					_screen->setFont(Screen::FID_6_FNT);
 					_vm->gui_drawAllCharPortraitsWithStats();
 					_screen->setFont(Screen::FID_8_FNT);
@@ -2607,7 +2607,7 @@ Common::String GUI_EoB::transferTargetMenu(Common::Array<Common::String> &target
 			break;
 	} while (_saveSlotIdTemp[slot] == -1);
 
-	_screen->copyRegion(72, 14, 72, 14, 176, 144, _vm->_useHiResDithering ? 7 : 12, 0, Screen::CR_NO_P_CHECK);
+	_screen->copyRegion(72, 14, 72, 14, 176, 144, 12, 0, Screen::CR_NO_P_CHECK);
 	_screen->modifyScreenDim(11, xo, yo, dm->w, dm->h);
 
 	return (slot < 6) ? _savegameList[_savegameOffset + slot] : Common::String();
@@ -2650,7 +2650,7 @@ void GUI_EoB::createScreenThumbnail(Graphics::Surface &dst) {
 	_screen->getRealPalette(0, screenPal);
 	uint16 width = Screen::SCREEN_W;
 	uint16 height = Screen::SCREEN_H;
-	if (_vm->_useHiResDithering) {
+	if (_vm->gameFlags().useHiRes) {
 		width <<= 1;
 		height <<= 1;
 	}
diff --git a/engines/kyra/kyra_rpg.cpp b/engines/kyra/kyra_rpg.cpp
index f1d9550e8f..df2297ebfd 100644
--- a/engines/kyra/kyra_rpg.cpp
+++ b/engines/kyra/kyra_rpg.cpp
@@ -46,12 +46,7 @@ KyraRpgEngine::KyraRpgEngine(OSystem *system, const GameFlags &flags) : KyraEngi
 	_vcnTransitionMask = 0;
 	_vcnShift = 0;
 	_vcnColTable = 0;
-	_vcnBlockWidth = 4;
-	_vcnBlockHeight = 8;
-	_vcnFlip0 = 0;
-	_vcnFlip1 = 1;
 	_vmpPtr = 0;
-	_vmpSize = 0;
 	_blockBrightness = _wllVcnOffset = 0;
 	_blockDrawingBuffer = 0;
 	_sceneWindowBuffer = 0;
@@ -173,9 +168,8 @@ Common::Error KyraRpgEngine::init() {
 
 	_blockDrawingBuffer = new uint16[1320];
 	memset(_blockDrawingBuffer, 0, 1320 * sizeof(uint16));
-	uint32 swbSize = 22 * _vcnBlockWidth * 2 * 15 * _vcnBlockHeight;
-	_sceneWindowBuffer = new uint8[swbSize];
-	memset(_sceneWindowBuffer, 0, swbSize);
+	_sceneWindowBuffer = new uint8[21120];
+	memset(_sceneWindowBuffer, 0, 21120);
 
 	_lvlShapeTop = new int16[18];
 	memset(_lvlShapeTop, 0, 18 * sizeof(int16));
diff --git a/engines/kyra/kyra_rpg.h b/engines/kyra/kyra_rpg.h
index 50a4c9bdc1..f4678e302a 100644
--- a/engines/kyra/kyra_rpg.h
+++ b/engines/kyra/kyra_rpg.h
@@ -222,7 +222,6 @@ protected:
 	uint16 _decorationCount;
 	int16 _mappedDecorationsCount;
 	uint16 *_vmpPtr;
-	uint16 _vmpSize;
 	uint8 *_vcnBlocks;
 	uint8 *_vcfBlocks;
 	uint8 *_vcnTransitionMask;
@@ -232,10 +231,6 @@ protected:
 	uint8 *_sceneWindowBuffer;
 	uint8 _blockBrightness;
 	uint8 _wllVcnOffset;
-	uint8 _vcnBlockWidth;
-	uint8 _vcnBlockHeight;
-	uint8 _vcnFlip0;
-	uint8 _vcnFlip1;
 
 	uint8 **_doorShapes;
 
diff --git a/engines/kyra/magic_eob.cpp b/engines/kyra/magic_eob.cpp
index 985286854b..fbddd620d1 100644
--- a/engines/kyra/magic_eob.cpp
+++ b/engines/kyra/magic_eob.cpp
@@ -60,7 +60,7 @@ void EoBCoreEngine::useMagicBookOrSymbol(int charIndex, int type) {
 	}
 
 	if (!_updateFlags)
-		_screen->copyRegion(64, 121, 0, 0, 112, 56, 0, _useHiResDithering ? 4 : 10, Screen::CR_NO_P_CHECK);
+		_screen->copyRegion(64, 121, 0, 0, 112, 56, 0, 10, Screen::CR_NO_P_CHECK);
 	_updateFlags = 1;
 	gui_setPlayFieldButtons();
 	gui_drawSpellbook();
diff --git a/engines/kyra/saveload_eob.cpp b/engines/kyra/saveload_eob.cpp
index f7d7d95b57..7f20c124ff 100644
--- a/engines/kyra/saveload_eob.cpp
+++ b/engines/kyra/saveload_eob.cpp
@@ -298,7 +298,7 @@ Common::Error EoBCoreEngine::loadGameState(int slot) {
 		useMagicBookOrSymbol(_openBookChar, _openBookType);
 	}
 
-	_screen->copyRegion(0, 120, 0, 0, 176, 24, 0, _useHiResDithering ? 1 : 12, Screen::CR_NO_P_CHECK);
+	_screen->copyRegion(0, 120, 0, 0, 176, 24, 0, 12, Screen::CR_NO_P_CHECK);
 
 	gui_toggleButtons();
 	setHandItem(_itemInHand);
diff --git a/engines/kyra/scene_eob.cpp b/engines/kyra/scene_eob.cpp
index 3db055db90..bf9eb01332 100644
--- a/engines/kyra/scene_eob.cpp
+++ b/engines/kyra/scene_eob.cpp
@@ -144,10 +144,10 @@ Common::String EoBCoreEngine::initLevelData(int sub) {
 
 		const char *vmpPattern = (_flags.gameID == GI_EOB1 && (_configRenderMode == Common::kRenderEGA || _configRenderMode == Common::kRenderCGA)) ? "%s.EMP" : "%s.VMP";
 		Common::SeekableReadStream *s = _res->createReadStream(Common::String::format(vmpPattern, (const char *)pos));
-		_vmpSize = s->readUint16LE();
+		uint16 size = s->readUint16LE();
 		delete[] _vmpPtr;
-		_vmpPtr = new uint16[_vmpSize];
-		for (int i = 0; i < _vmpSize; i++)
+		_vmpPtr = new uint16[size];
+		for (int i = 0; i < size; i++)
 			_vmpPtr[i] = s->readUint16LE();
 		delete s;
 
@@ -283,7 +283,7 @@ void EoBCoreEngine::loadVcnData(const char *file, const uint8 *cgaMapping) {
 	_screen->loadBitmap(Common::String::format(filePattern, _lastBlockDataFile).c_str(), 3, 3, 0);
 	const uint8 *pos = _screen->getCPagePtr(3);
 
-	uint32 vcnSize = READ_LE_UINT16(pos) * _vcnBlockWidth * _vcnBlockHeight;
+	uint32 vcnSize = READ_LE_UINT16(pos) << 5;
 	pos += 2;
 
 	const uint8 *colMap = pos;
@@ -292,78 +292,28 @@ void EoBCoreEngine::loadVcnData(const char *file, const uint8 *cgaMapping) {
 	delete[] _vcnBlocks;
 	_vcnBlocks = new uint8[vcnSize];
 
-	if (_flags.gameID == GI_EOB2 && _configRenderMode == Common::kRenderEGA) {
-		const uint8 *egaTable = _screen->getEGADitheringTable();
-		assert(_vmpPtr);
-		assert(egaTable);
-
-		delete[] _vcnTransitionMask;
-		_vcnTransitionMask = new uint8[vcnSize];
-
-		for (int i = 0; i < _vmpSize; i++) {
-			uint16 vcnOffs = _vmpPtr[i] & 0x3FFF;
-			const uint8 *src = &pos[vcnOffs << 5];
-			uint8 *dst1 = &_vcnBlocks[vcnOffs << 7];
-			uint8 *dst3 = &_vcnTransitionMask[vcnOffs << 7];
-			int palOffset = (i < 330) ? 0 : _wllVcnOffset;
-
-			for (int y = 0; y < 8; y++) {
-				uint8 *dst2 = dst1 + 8;
-				uint8 *dst4 = dst3 + 8;
-
-				for (int x = 0; x < 4; x++) {
-					uint8 in = *src++;
-
-					dst1[0] = dst2[0] = egaTable[colMap[(in >> 4) + palOffset]];
-					dst1[1] = dst2[1] = egaTable[colMap[(in & 0x0f) + palOffset]];
-					dst3[0] = dst4[0] = (in & 0xf0) ? 0 : 0xff;
-					dst3[1] = dst4[1] = (in & 0x0f) ? 0 : 0xff;
-
-					dst1 += 2;
-					dst2 += 2;
-					dst3 += 2;
-					dst4 += 2;
-				}
-
-				dst1 += 8;
-				dst3 += 8;
-			}
-		}
-	} else if (_configRenderMode == Common::kRenderCGA) {
+	if (_configRenderMode == Common::kRenderCGA) {
 		uint8 *tmp = _screen->encodeShape(0, 0, 1, 8, false, cgaMapping);
 		delete[] tmp;
 
 		delete[] _vcnTransitionMask;
 		_vcnTransitionMask = new uint8[vcnSize];
-		uint8 tblSwitch = 0;
+		uint8 tblSwitch = 1;
 		uint8 *dst = _vcnBlocks;
 		uint8 *dst2 = _vcnTransitionMask;
 
 		while (dst < _vcnBlocks + vcnSize) {
 			const uint16 *table = _screen->getCGADitheringTable((tblSwitch++) & 1);
 			for (int ii = 0; ii < 2; ii++) {
-				*dst++ = ((table[pos[0]] & 0x000f) << 4) | ((table[pos[0]] & 0x0f00) >> 8);
-				*dst++= ((table[pos[1]] & 0x000f) << 4) | ((table[pos[1]] & 0x0f00) >> 8);
-
-				uint8 msk = 0;
-				if (pos[0] & 0xf0)
-					msk |= 0x30;
-				if (pos[0] & 0x0f)
-					msk |= 0x03;
-				*dst2++ = msk ^ 0x33;
-
-				msk = 0;
-				if (pos[1] & 0xf0)
-					msk |= 0x30;
-				if (pos[1] & 0x0f)
-					msk |= 0x03;
-				*dst2++ = msk ^ 0x33;
-
+				*dst++ = (table[pos[0]] & 0x000f) | ((table[pos[0]] & 0x0f00) >> 4);
+				*dst++ = (table[pos[1]] & 0x000f) | ((table[pos[1]] & 0x0f00) >> 4);
+				*dst2++ = ((pos[0] & 0xf0 ? 0x30 : 0) | (pos[0] & 0x0f ? 0x03 : 0)) ^ 0x33;
+				*dst2++ = ((pos[1] & 0xf0 ? 0x30 : 0) | (pos[1] & 0x0f ? 0x03 : 0)) ^ 0x33;
 				pos += 2;
 			}
 		}
 	} else {
-		if (_configRenderMode != Common::kRenderEGA)
+		if (!(_flags.gameID == GI_EOB1 && _configRenderMode == Common::kRenderEGA))
 			memcpy(_vcnColTable, colMap, 32);
 		memcpy(_vcnBlocks, pos, vcnSize);
 	}
diff --git a/engines/kyra/scene_rpg.cpp b/engines/kyra/scene_rpg.cpp
index 3a694e05fe..5a0433323c 100644
--- a/engines/kyra/scene_rpg.cpp
+++ b/engines/kyra/scene_rpg.cpp
@@ -348,9 +348,6 @@ bool KyraRpgEngine::checkSceneUpdateNeed(int block) {
 void KyraRpgEngine::drawVcnBlocks() {
 	uint8 *d = _sceneWindowBuffer;
 	uint16 *bdb = _blockDrawingBuffer;
-	uint16 pitch = 22 * _vcnBlockWidth * 2;
-	uint8 pxl[2];
-	pxl[0] = pxl[1] = 0;
 
 	for (int y = 0; y < 15; y++) {
 		for (int x = 0; x < 22; x++) {
@@ -374,7 +371,7 @@ void KyraRpgEngine::drawVcnBlocks() {
 
 			uint8 *src = 0;
 			if (vcnOffset) {
-				src = &_vcnBlocks[vcnOffset * _vcnBlockWidth * _vcnBlockHeight];
+				src = &_vcnBlocks[vcnOffset << 5];
 				wllVcnOffset = _wllVcnOffset;
 			} else {
 				// floor/ceiling blocks
@@ -384,37 +381,36 @@ void KyraRpgEngine::drawVcnBlocks() {
 					vcnOffset &= 0x3fff;
 				}
 
-				src = (_vcfBlocks ? _vcfBlocks : _vcnBlocks) + (vcnOffset * _vcnBlockWidth * _vcnBlockHeight);
+				src = (_vcfBlocks ? _vcfBlocks : _vcnBlocks) + (vcnOffset << 5);
 			}
 
 			uint8 shift = _vcnShift ? _vcnShift[vcnOffset] : _blockBrightness;
 
 			if (horizontalFlip) {
-				for (int blockY = 0; blockY < _vcnBlockHeight; blockY++) {
-					src += (_vcnBlockWidth - 1);
-					for (int blockX = 0; blockX < _vcnBlockWidth; blockX++) {
+				for (int blockY = 0; blockY < 8; blockY++) {
+					src += 3;
+					for (int blockX = 0; blockX < 4; blockX++) {
 						uint8 bl = *src--;
-						d[_vcnFlip0] = _vcnColTable[((bl & 0x0f) + wllVcnOffset) | shift];
-						d[_vcnFlip1] = _vcnColTable[((bl >> 4) + wllVcnOffset) | shift];
-						d += 2;
+						*d++ = _vcnColTable[((bl & 0x0f) + wllVcnOffset) | shift];
+						*d++ = _vcnColTable[((bl >> 4) + wllVcnOffset) | shift];
 					}
-					src += (_vcnBlockWidth + 1);
-					d += (pitch - 2 * _vcnBlockWidth);
+					src += 5;
+					d += 168;
 				}
 			} else {
-				for (int blockY = 0; blockY < _vcnBlockHeight; blockY++) {
-					for (int blockX = 0; blockX < _vcnBlockWidth; blockX++) {
+				for (int blockY = 0; blockY < 8; blockY++) {
+					for (int blockX = 0; blockX < 4; blockX++) {
 						uint8 bl = *src++;
 						*d++ = _vcnColTable[((bl >> 4) + wllVcnOffset) | shift];
 						*d++ = _vcnColTable[((bl & 0x0f) + wllVcnOffset) | shift];
 					}
-					d += (pitch - 2 * _vcnBlockWidth);
+					d += 168;
 				}
 			}
-			d -= (pitch * _vcnBlockHeight - 2 * _vcnBlockWidth);
+			d -= 1400;
 
 			if (vcnExtraOffsetWll) {
-				d -= (2 * _vcnBlockWidth);
+				d -= 8;
 				horizontalFlip = false;
 
 				if (vcnExtraOffsetWll & 0x4000) {
@@ -423,38 +419,38 @@ void KyraRpgEngine::drawVcnBlocks() {
 				}
 
 				shift = _vcnShift ? _vcnShift[vcnExtraOffsetWll] : _blockBrightness;
-				src = &_vcnBlocks[vcnExtraOffsetWll * _vcnBlockWidth * _vcnBlockHeight];
-				uint8 *maskTable = _vcnTransitionMask ? &_vcnTransitionMask[vcnExtraOffsetWll * _vcnBlockWidth * _vcnBlockHeight] : 0;
+				src = &_vcnBlocks[vcnExtraOffsetWll << 5];
+				uint8 *maskTable = _vcnTransitionMask ? &_vcnTransitionMask[vcnExtraOffsetWll << 5] : 0;
 
 				if (horizontalFlip) {
-					for (int blockY = 0; blockY < _vcnBlockHeight; blockY++) {
-						src += (_vcnBlockWidth - 1);
-						maskTable += (_vcnBlockWidth - 1);
-						for (int blockX = 0; blockX < _vcnBlockWidth; blockX++) {
+					for (int blockY = 0; blockY < 8; blockY++) {
+						src += 3;
+						maskTable += 3;
+						for (int blockX = 0; blockX < 4; blockX++) {
 							uint8 bl = *src--;
 							uint8 mask = _vcnTransitionMask ? *maskTable-- : 0;
-							pxl[_vcnFlip0] = _vcnColTable[((bl & 0x0f) + wllVcnRmdOffset) | shift];
-							pxl[_vcnFlip1] = _vcnColTable[((bl >> 4) + wllVcnRmdOffset) | shift];
+							uint8 h = _vcnColTable[((bl & 0x0f) + wllVcnRmdOffset) | shift];
+							uint8 l = _vcnColTable[((bl >> 4) + wllVcnRmdOffset) | shift];
 
 							if (_vcnTransitionMask)
-								*d = (*d & (mask & 0x0f)) | pxl[0];
-							else if (pxl[0])
-								*d = pxl[0];
+								*d = (*d & (mask & 0x0f)) | h;
+							else if (h)
+								*d = h;
 							d++;
 
 							if (_vcnTransitionMask)
-								*d = (*d & (mask >> 4)) | pxl[1];
-							else if (pxl[1])
-								*d = pxl[1];
+								*d = (*d & (mask >> 4)) | l;
+							else if (l)
+								*d = l;
 							d++;
 						}
-						src += (_vcnBlockWidth + 1);
-						maskTable += (_vcnBlockWidth + 1);
-						d += (pitch - 2 * _vcnBlockWidth);
+						src += 5;
+						maskTable += 5;
+						d += 168;
 					}
 				} else {
-					for (int blockY = 0; blockY < _vcnBlockHeight; blockY++) {
-						for (int blockX = 0; blockX < _vcnBlockWidth; blockX++) {
+					for (int blockY = 0; blockY < 8; blockY++) {
+						for (int blockX = 0; blockX < 4; blockX++) {
 							uint8 bl = *src++;
 							uint8 mask = _vcnTransitionMask ? *maskTable++ : 0;
 							uint8 h = _vcnColTable[((bl >> 4) + wllVcnRmdOffset) | shift];
@@ -472,13 +468,13 @@ void KyraRpgEngine::drawVcnBlocks() {
 								*d = l;
 							d++;
 						}
-						d += (pitch - 2 * _vcnBlockWidth);
+						d += 168;
 					}
 				}
-				d -= (pitch * _vcnBlockHeight - 2 * _vcnBlockWidth);
+				d -= 1400;
 			}
 		}
-		d += (pitch * (_vcnBlockHeight - 1));
+		d += 1232;
 	}
 
 	screen()->copyBlockToPage(_sceneDrawPage1, _sceneXoffset, 0, 176, 120, _sceneWindowBuffer);
diff --git a/engines/kyra/screen.cpp b/engines/kyra/screen.cpp
index 04d805737f..c400b330b9 100644
--- a/engines/kyra/screen.cpp
+++ b/engines/kyra/screen.cpp
@@ -51,8 +51,6 @@ Screen::Screen(KyraEngine_v1 *vm, OSystem *system, const ScreenDim *dimTable, co
 	memset(_fonts, 0, sizeof(_fonts));
 
 	memset(_pagePtrs, 0, sizeof(_pagePtrs));
-	// Set scale factor to 1 (no scaling) for all pages
-	memset(_pageScaleFactor, 1, sizeof(_pageScaleFactor));
 	// In VGA mode the odd and even page pointers point to the same buffers.
 	for (int i = 0; i < SCREEN_PAGE_NUM; i++)
 		_pageMapping[i] = i & ~1;
@@ -114,7 +112,7 @@ bool Screen::init() {
 	}
 
 	// CGA and EGA modes use additional pages to do the CGA/EGA specific graphics conversions.
-	if (_renderMode == Common::kRenderCGA || _renderMode == Common::kRenderEGA) {
+	if (_vm->game() == GI_EOB1 && (_renderMode == Common::kRenderCGA || _renderMode == Common::kRenderEGA)) {
 		for (int i = 0; i < 8; i++)
 			_pageMapping[i] = i;
 	}
@@ -154,9 +152,7 @@ bool Screen::init() {
 	}
 
 	int numPages = realPages.size();
-	uint32 bufferSize = 0;
-	for (int i = 0; i < numPages; i++)
-		bufferSize += (SCREEN_PAGE_SIZE * _pageScaleFactor[realPages[i]] * _pageScaleFactor[realPages[i]]);
+	uint32 bufferSize = numPages * SCREEN_PAGE_SIZE;
 
 	uint8 *pagePtr = new uint8[bufferSize];
 	memset(pagePtr, 0, bufferSize);
@@ -167,7 +163,7 @@ bool Screen::init() {
 			_pagePtrs[i] = _pagePtrs[_pageMapping[i]];
 		} else {
 			_pagePtrs[i] = pagePtr;
-			pagePtr += (SCREEN_PAGE_SIZE * _pageScaleFactor[i] * _pageScaleFactor[i]);
+			pagePtr += SCREEN_PAGE_SIZE;
 		}
 	}
 
@@ -292,7 +288,7 @@ void Screen::updateScreen() {
 		needRealUpdate = true;
 
 		if (!_useOverlays)
-			_system->copyRectToScreen(getPagePtr(2), SCREEN_W, 320, 0, SCREEN_W * _pageScaleFactor[2], SCREEN_H * _pageScaleFactor[2]);
+			_system->copyRectToScreen(getPagePtr(2), SCREEN_W, 320, 0, SCREEN_W, SCREEN_H);
 		else
 			_system->copyRectToScreen(getPagePtr(2), SCREEN_W, 640, 0, SCREEN_W, SCREEN_H);
 	}
@@ -303,12 +299,12 @@ void Screen::updateScreen() {
 
 void Screen::updateDirtyRects() {
 	if (_forceFullUpdate) {
-		_system->copyRectToScreen(getCPagePtr(0), SCREEN_W * _pageScaleFactor[0], 0, 0, SCREEN_W * _pageScaleFactor[0], SCREEN_H * _pageScaleFactor[0]);
+		_system->copyRectToScreen(getCPagePtr(0), SCREEN_W, 0, 0, SCREEN_W, SCREEN_H);
 	} else {
 		const byte *page0 = getCPagePtr(0);
 		Common::List<Common::Rect>::iterator it;
 		for (it = _dirtyRects.begin(); it != _dirtyRects.end(); ++it) {
-			_system->copyRectToScreen(page0 + it->top * SCREEN_W * _pageScaleFactor[0] + it->left, SCREEN_W * _pageScaleFactor[0], it->left, it->top, it->width(), it->height());
+			_system->copyRectToScreen(page0 + it->top * SCREEN_W + it->left, SCREEN_W, it->left, it->top, it->width(), it->height());
 		}
 	}
 	_forceFullUpdate = false;
@@ -493,7 +489,7 @@ void Screen::clearPage(int pageNum) {
 	assert(pageNum < SCREEN_PAGE_NUM);
 	if (pageNum == 0 || pageNum == 1)
 		_forceFullUpdate = true;
-	memset(getPagePtr(pageNum), 0, SCREEN_PAGE_SIZE * _pageScaleFactor[_curPage] * _pageScaleFactor[_curPage]);
+	memset(getPagePtr(pageNum), 0, SCREEN_PAGE_SIZE);
 	clearOverlayPage(pageNum);
 }
 
@@ -507,7 +503,7 @@ int Screen::setCurPage(int pageNum) {
 void Screen::clearCurPage() {
 	if (_curPage == 0 || _curPage == 1)
 		_forceFullUpdate = true;
-	memset(getPagePtr(_curPage), 0, SCREEN_PAGE_SIZE * _pageScaleFactor[_curPage] * _pageScaleFactor[_curPage]);
+	memset(getPagePtr(_curPage), 0, SCREEN_PAGE_SIZE);
 	clearOverlayPage(_curPage);
 }
 
@@ -672,7 +668,7 @@ void Screen::setPagePixel(int pageNum, int x, int y, uint8 color) {
 		color |= (color << 4);
 	} else if (_renderMode == Common::kRenderCGA) {
 		color &= 0x03;
-	} else if (_renderMode == Common::kRenderEGA) {
+	} else if (_renderMode == Common::kRenderEGA && !_useHiResEGADithering) {
 		color &= 0x0F;
 	}
 
@@ -881,26 +877,16 @@ void Screen::copyToPage0(int y, int h, uint8 page, uint8 *seqBuf) {
 }
 
 void Screen::copyRegion(int x1, int y1, int x2, int y2, int w, int h, int srcPage, int dstPage, int flags) {
-	// Since we don't (need to) do any actual scaling, we check for compatible pages here
-	assert(_pageScaleFactor[srcPage] == _pageScaleFactor[dstPage]);
-
-	x1 *= _pageScaleFactor[srcPage];
-	y1 *= _pageScaleFactor[srcPage];
-	x2 *= _pageScaleFactor[dstPage];
-	y2 *= _pageScaleFactor[dstPage];
-	w *= _pageScaleFactor[srcPage];
-	h *= _pageScaleFactor[srcPage];
-
 	if (x2 < 0) {
 		if (x2  <= -w)
 			return;
 		w += x2;
 		x1 -= x2;
 		x2 = 0;
-	} else if (x2 + w >= SCREEN_W * _pageScaleFactor[dstPage]) {
-		if (x2 > SCREEN_W * _pageScaleFactor[dstPage])
+	} else if (x2 + w >= SCREEN_W) {
+		if (x2 > SCREEN_W)
 			return;
-		w = SCREEN_W * _pageScaleFactor[srcPage] - x2;
+		w = SCREEN_W - x2;
 	}
 
 	if (y2 < 0) {
@@ -909,14 +895,14 @@ void Screen::copyRegion(int x1, int y1, int x2, int y2, int w, int h, int srcPag
 		h += y2;
 		y1 -= y2;
 		y2 = 0;
-	} else if (y2 + h >= SCREEN_H * _pageScaleFactor[dstPage]) {
-		if (y2 > SCREEN_H * _pageScaleFactor[dstPage])
+	} else if (y2 + h >= SCREEN_H) {
+		if (y2 > SCREEN_H)
 			return;
-		h = SCREEN_H * _pageScaleFactor[srcPage] - y2;
+		h = SCREEN_H - y2;
 	}
 
-	const uint8 *src = getPagePtr(srcPage) + y1 * SCREEN_W * _pageScaleFactor[srcPage] + x1;
-	uint8 *dst = getPagePtr(dstPage) + y2 * SCREEN_W * _pageScaleFactor[dstPage] + x2;
+	const uint8 *src = getPagePtr(srcPage) + y1 * SCREEN_W + x1;
+	uint8 *dst = getPagePtr(dstPage) + y2 * SCREEN_W + x2;
 
 	if (src == dst)
 		return;
@@ -929,8 +915,8 @@ void Screen::copyRegion(int x1, int y1, int x2, int y2, int w, int h, int srcPag
 	if (flags & CR_NO_P_CHECK) {
 		while (h--) {
 			memmove(dst, src, w);
-			src += SCREEN_W * _pageScaleFactor[srcPage];
-			dst += SCREEN_W * _pageScaleFactor[dstPage];
+			src += SCREEN_W;
+			dst += SCREEN_W;
 		}
 	} else {
 		while (h--) {
@@ -938,24 +924,19 @@ void Screen::copyRegion(int x1, int y1, int x2, int y2, int w, int h, int srcPag
 				if (src[i])
 					dst[i] = src[i];
 			}
-			src += SCREEN_W * _pageScaleFactor[srcPage];
-			dst += SCREEN_W * _pageScaleFactor[dstPage];
+			src += SCREEN_W;
+			dst += SCREEN_W;
 		}
 	}
 }
 
 void Screen::copyRegionToBuffer(int pageNum, int x, int y, int w, int h, uint8 *dest) {
-	x *= _pageScaleFactor[pageNum];
-	y *= _pageScaleFactor[pageNum];
-	w *= _pageScaleFactor[pageNum];
-	h *= _pageScaleFactor[pageNum];
-
 	if (y < 0) {
 		dest += (-y) * w;
 		h += y;
 		y = 0;
 	} else if (y + h > SCREEN_H) {
-		h = SCREEN_H * _pageScaleFactor[pageNum] - y;
+		h = SCREEN_H - y;
 	}
 
 	if (x < 0) {
@@ -963,7 +944,7 @@ void Screen::copyRegionToBuffer(int pageNum, int x, int y, int w, int h, uint8 *
 		w += x;
 		x = 0;
 	} else if (x + w > SCREEN_W) {
-		w = SCREEN_W * _pageScaleFactor[pageNum] - x;
+		w = SCREEN_W - x;
 	}
 
 	if (w < 0 || h < 0)
@@ -972,17 +953,14 @@ void Screen::copyRegionToBuffer(int pageNum, int x, int y, int w, int h, uint8 *
 	uint8 *pagePtr = getPagePtr(pageNum);
 
 	for (int i = y; i < y + h; ++i)
-		memcpy(dest + (i - y) * w, pagePtr + i * SCREEN_W * _pageScaleFactor[pageNum] + x, w);
+		memcpy(dest + (i - y) * w, pagePtr + i * SCREEN_W + x, w);
 }
 
 void Screen::copyPage(uint8 srcPage, uint8 dstPage) {
-	// Since we don't (need to) do any actual scaling, we check for compatible pages here
-	assert(_pageScaleFactor[srcPage] == _pageScaleFactor[dstPage]);
-
 	uint8 *src = getPagePtr(srcPage);
 	uint8 *dst = getPagePtr(dstPage);
 	if (src != dst)
-		memcpy(dst, src, SCREEN_W * _pageScaleFactor[srcPage] * SCREEN_H * _pageScaleFactor[srcPage]);
+		memcpy(dst, src, SCREEN_W * SCREEN_H);
 	copyOverlayRegion(0, 0, 0, 0, SCREEN_W, SCREEN_H, srcPage, dstPage);
 
 	if (dstPage == 0 || dstPage == 1)
@@ -1009,12 +987,7 @@ void Screen::copyBlockToPage(int pageNum, int x, int y, int w, int h, const uint
 	if (w < 0 || h < 0)
 		return;
 
-	x *= _pageScaleFactor[pageNum];
-	y *= _pageScaleFactor[pageNum];
-	w *= _pageScaleFactor[pageNum];
-	h *= _pageScaleFactor[pageNum];
-
-	uint8 *dst = getPagePtr(pageNum) + y * SCREEN_W * _pageScaleFactor[pageNum] + x;
+	uint8 *dst = getPagePtr(pageNum) + y * SCREEN_W + x;
 
 	if (pageNum == 0 || pageNum == 1)
 		addDirtyRect(x, y, w, h);
@@ -1023,7 +996,7 @@ void Screen::copyBlockToPage(int pageNum, int x, int y, int w, int h, const uint
 
 	while (h--) {
 		memcpy(dst, src, w);
-		dst += SCREEN_W * _pageScaleFactor[pageNum];
+		dst += SCREEN_W;
 		src += w;
 	}
 }
@@ -1187,7 +1160,7 @@ void Screen::drawLine(bool vertical, int x, int y, int length, int color) {
 		int currLine = 0;
 		while (currLine < length) {
 			*ptr = color;
-			ptr += SCREEN_W * _pageScaleFactor[_curPage];
+			ptr += SCREEN_W;
 			currLine++;
 		}
 	} else {
@@ -1233,7 +1206,8 @@ bool Screen::loadFont(FontId fontId, const char *filename) {
 			fnt = new AMIGAFont();
 #ifdef ENABLE_EOB
 		else if (_vm->game() == GI_EOB1 || _vm->game() == GI_EOB2)
-			fnt = new OldDOSFont(_renderMode, _vm->gameFlags().useHiRes);
+			// We use normal VGA rendering in EOB II, since we do the complete EGA dithering in updateScreen().
+			fnt = new OldDOSFont(_useHiResEGADithering ? Common::kRenderVGA : _renderMode);
 #endif // ENABLE_EOB
 		else
 			fnt = new DOSFont();
@@ -1362,9 +1336,6 @@ void Screen::drawChar(uint16 c, int x, int y) {
 	if (x + charWidth > SCREEN_W || y + charHeight > SCREEN_H)
 		return;
 
-	x *= _pageScaleFactor[_curPage];
-	y *= _pageScaleFactor[_curPage];
-
 	if (useOverlay) {
 		uint8 *destPage = getOverlayPtr(_curPage);
 		if (!destPage) {
@@ -1376,11 +1347,11 @@ void Screen::drawChar(uint16 c, int x, int y) {
 
 		fnt->drawChar(c, destPage, 640);
 	} else {
-		fnt->drawChar(c, getPagePtr(_curPage) + y * SCREEN_W * _pageScaleFactor[_curPage] + x, SCREEN_W * _pageScaleFactor[_curPage]);
+		fnt->drawChar(c, getPagePtr(_curPage) + y * SCREEN_W + x, SCREEN_W);
 	}
 
 	if (_curPage == 0 || _curPage == 1)
-		addDirtyRect(x, y, charWidth * _pageScaleFactor[_curPage], charHeight * _pageScaleFactor[_curPage]);
+		addDirtyRect(x, y, charWidth, charHeight);
 }
 
 void Screen::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y, int sd, int flags, ...) {
@@ -3215,7 +3186,7 @@ void Screen::addDirtyRect(int x, int y, int w, int h) {
 	Common::Rect r(x, y, x + w, y + h);
 
 	// Clip rectangle
-	r.clip(SCREEN_W * _pageScaleFactor[0], SCREEN_H * _pageScaleFactor[0]);
+	r.clip(SCREEN_W, SCREEN_H);
 
 	// If it is empty after clipping, we are done
 	if (r.isEmpty())
@@ -3322,8 +3293,6 @@ void Screen::crossFadeRegion(int x1, int y1, int x2, int y2, int w, int h, int s
 	if (srcPage > 13 || dstPage > 13)
 		error("Screen::crossFadeRegion(): attempting to use temp page as source or dest page.");
 
-	assert(_pageScaleFactor[srcPage] == _pageScaleFactor[dstPage]);
-
 	hideMouse();
 
 	uint16 *wB = (uint16 *)_pagePtrs[14];
@@ -3341,6 +3310,9 @@ void Screen::crossFadeRegion(int x1, int y1, int x2, int y2, int w, int h, int s
 	for (int i = 0; i < h; i++)
 		SWAP(hB[_vm->_rnd.getRandomNumberRng(0, h - 1)], hB[i]);
 
+	uint8 *s = _pagePtrs[srcPage];
+	uint8 *d = _pagePtrs[dstPage];
+
 	for (int i = 0; i < h; i++) {
 		int iH = i;
 		uint32 end = _system->getMillis() + 3;
@@ -3353,7 +3325,8 @@ void Screen::crossFadeRegion(int x1, int y1, int x2, int y2, int w, int h, int s
 			if (++iH >= h)
 				iH = 0;
 
-			setPagePixel(dstPage, dX, dY, getPagePixel(srcPage, sX, sY));
+			d[dY * 320 + dX] = s[sY * 320 + sX];
+			addDirtyRect(dX, dY, 1, 1);
 		}
 
 		// This tries to speed things up, to get similiar speeds as in DOSBox etc.
diff --git a/engines/kyra/screen.h b/engines/kyra/screen.h
index 60bfeb3241..159d415ea6 100644
--- a/engines/kyra/screen.h
+++ b/engines/kyra/screen.h
@@ -146,7 +146,7 @@ private:
  */
 class OldDOSFont : public Font {
 public:
-	OldDOSFont(Common::RenderMode mode, bool useHiResEGADithering);
+	OldDOSFont(Common::RenderMode mode);
 	~OldDOSFont();
 
 	bool load(Common::SeekableReadStream &file);
@@ -168,8 +168,6 @@ private:
 	int _numGlyphs;
 
 	Common::RenderMode _renderMode;
-	bool _useHiResEGADithering;
-	bool _useLoResEGA;
 
 	static uint16 *_cgaDitheringTable;
 	static int _numRef;
@@ -426,12 +424,12 @@ public:
 	void copyBlockToPage(int pageNum, int x, int y, int w, int h, const uint8 *src);
 
 	void shuffleScreen(int sx, int sy, int w, int h, int srcPage, int dstPage, int ticks, bool transparent);
-	virtual void fillRect(int x1, int y1, int x2, int y2, uint8 color, int pageNum = -1, bool xored = false);
+	void fillRect(int x1, int y1, int x2, int y2, uint8 color, int pageNum = -1, bool xored = false);
 
 	void clearPage(int pageNum);
 
-	virtual uint8 getPagePixel(int pageNum, int x, int y);
-	virtual void setPagePixel(int pageNum, int x, int y, uint8 color);
+	uint8 getPagePixel(int pageNum, int x, int y);
+	void setPagePixel(int pageNum, int x, int y, uint8 color);
 
 	const uint8 *getCPagePtr(int pageNum) const;
 	uint8 *getPageRect(int pageNum, int x, int y, int w, int h);
@@ -457,7 +455,7 @@ public:
 	void copyPalette(const int dst, const int src);
 
 	// gui specific (processing on _curPage)
-	virtual void drawLine(bool vertical, int x, int y, int length, int color);
+	void drawLine(bool vertical, int x, int y, int length, int color);
 	void drawClippedLine(int x1, int y1, int x2, int y2, int color);
 	virtual void drawShadedBox(int x1, int y1, int x2, int y2, int color1, int color2);
 	void drawBox(int x1, int y1, int x2, int y2, int color);
@@ -472,7 +470,7 @@ public:
 	int getCharWidth(uint16 c) const;
 	int getTextWidth(const char *str) const;
 
-	virtual void printText(const char *str, int x, int y, uint8 color1, uint8 color2);
+	void printText(const char *str, int x, int y, uint8 color1, uint8 color2);
 
 	virtual void setTextColorMap(const uint8 *cmap) = 0;
 	void setTextColor(const uint8 *cmap, int a, int b);
@@ -573,14 +571,12 @@ protected:
 
 	uint8 *_pagePtrs[16];
 	uint8 *_sjisOverlayPtrs[SCREEN_OVLS_NUM];
-	uint8 _pageScaleFactor[SCREEN_PAGE_NUM];
 	uint8 _pageMapping[SCREEN_PAGE_NUM];
 
 	bool _useOverlays;
 	bool _useSJIS;
 	bool _use16ColorMode;
 	bool _useHiResEGADithering;
-	bool _useLoResEGA;
 	bool _isAmiga;
 	Common::RenderMode _renderMode;
 
diff --git a/engines/kyra/screen_eob.cpp b/engines/kyra/screen_eob.cpp
index ae75c111b4..eed9647069 100644
--- a/engines/kyra/screen_eob.cpp
+++ b/engines/kyra/screen_eob.cpp
@@ -52,10 +52,9 @@ Screen_EoB::Screen_EoB(EoBCoreEngine *vm, OSystem *system) : Screen(vm, system,
 	_cgaScaleTable = 0;
 	_gfxMaxY = 0;
 	_egaDitheringTable = 0;
-	_egaPixelValueTable = 0;
 	_cgaMappingDefault = 0;
 	_cgaDitheringTables[0] = _cgaDitheringTables[1] = 0;
-	_useLoResEGA = _useHiResEGADithering = false;
+	_useHiResEGADithering = false;
 }
 
 Screen_EoB::~Screen_EoB() {
@@ -63,18 +62,11 @@ Screen_EoB::~Screen_EoB() {
 	delete[] _dsTempPage;
 	delete[] _cgaScaleTable;
 	delete[] _egaDitheringTable;
-	delete[] _egaPixelValueTable;
 	delete[] _cgaDitheringTables[0];
 	delete[] _cgaDitheringTables[1];
 }
 
 bool Screen_EoB::init() {
-	// Define hi-res pages for EGA mode in EOB II
-	if (_vm->gameFlags().useHiRes) {
-		for (int i = 0; i < 8; i++)
-			_pageScaleFactor[i] = 2;
-	}
-
 	if (Screen::init()) {
 		int temp;
 		_gfxMaxY = _vm->staticres()->loadRawData(kEoBBaseExpObjectY, temp);
@@ -98,13 +90,8 @@ bool Screen_EoB::init() {
 		if (_vm->gameFlags().useHiRes && _renderMode == Common::kRenderEGA) {
 			_useHiResEGADithering = true;
 			_egaDitheringTable = new uint8[256];
-			_egaPixelValueTable = new uint8[256];
-			for (int i = 0; i < 256; i++) {
+			for (int i = 0; i < 256; i++)
 				_egaDitheringTable[i] = i & 0x0f;
-				_egaPixelValueTable[i] = i & 0x0f;
-			}
-		} else if (_renderMode == Common::kRenderEGA) {
-			_useLoResEGA = true;
 		} else if (_renderMode == Common::kRenderCGA) {
 			_cgaMappingDefault = _vm->staticres()->loadRawData(kEoB1CgaMappingDefault, temp);
 			_cgaDitheringTables[0] = new uint16[256];
@@ -144,13 +131,19 @@ void Screen_EoB::setMouseCursor(int x, int y, const byte *shape, const uint8 *ov
 	int mouseH = (shape[3]);
 	int colorKey = (_renderMode == Common::kRenderCGA) ? 0 : _cursorColorKey;
 
-	uint8 *cursor = new uint8[mouseW * _pageScaleFactor[6] * mouseH * _pageScaleFactor[6]];
+	int scaleFactor = _useHiResEGADithering ? 2 : 1;
+
+	uint8 *cursor = new uint8[mouseW * scaleFactor * mouseH * scaleFactor];
 	// We use memset and copyBlockToPage instead of fillRect to make sure that the
 	// color key 0xFF doesn't get converted into EGA color
-	memset(cursor, colorKey, mouseW * _pageScaleFactor[6] * mouseH * _pageScaleFactor[6]);
+	memset(cursor, colorKey, mouseW * scaleFactor * mouseH * scaleFactor);
 	copyBlockToPage(6, 0, 0, mouseW, mouseH, cursor);
 	drawShape(6, shape, 0, 0, 0, 2, ovl);
 	CursorMan.showMouse(false);
+
+	if (_useHiResEGADithering) {
+	}
+
 	copyRegionToBuffer(6, 0, 0, mouseW, mouseH, cursor);
 
 	// Mouse cursor post processing for CGA mode. Unlike the original (which uses drawShape for the mouse cursor)
@@ -176,7 +169,7 @@ void Screen_EoB::setMouseCursor(int x, int y, const byte *shape, const uint8 *ov
 		}
 	}
 
-	CursorMan.replaceCursor(cursor, mouseW * _pageScaleFactor[6], mouseH * _pageScaleFactor[6], x, y, colorKey);
+	CursorMan.replaceCursor(cursor, mouseW * scaleFactor, mouseH * scaleFactor, x, y, colorKey);
 	if (isMouseVisible())
 		CursorMan.showMouse(true);
 	delete[] cursor;
@@ -192,19 +185,6 @@ void Screen_EoB::loadFileDataToPage(Common::SeekableReadStream *s, int pageNum,
 	s->read(_pagePtrs[pageNum], size);
 }
 
-void Screen_EoB::printText(const char *str, int x, int y, uint8 color1, uint8 color2) {
-	if (_useHiResEGADithering) {
-		// This is sort of an abuse of the text color map. But since EOB doesn't use it anyway
-		// and the font drawing code needs access to both the original color values and the
-		// EGA dithering colors we pass them on like this.
-		uint8 cmap[2];
-		cmap[0] = _egaDitheringTable[color2];
-		cmap[1] = _egaDitheringTable[color1];
-		setTextColor(cmap, 2, 3);
-	}
-	Screen::printText(str, x, y, color1, color2);
-}
-
 void Screen_EoB::printShadedText(const char *string, int x, int y, int col1, int col2) {
 	printText(string, x - 1, y, 12, col2);
 	printText(string, x, y + 1, 12, 0);
@@ -281,23 +261,10 @@ void Screen_EoB::convertPage(int srcPage, int dstPage, const uint8 *cgaMapping)
 				src += 2;
 			}
 		}
-
-	} else if (_useHiResEGADithering) {
-		for (int height = SCREEN_H; height; height--) {
-			uint8 *dst2 = dst + SCREEN_W * 2;
-			for (int width = SCREEN_W; width; width--) {
-				uint8 in = _egaDitheringTable[*src++];
-				*dst++ = *dst2++ = in >> 4;
-				*dst++ = *dst2++ = in & 0x0f;
-			}
-			dst += (SCREEN_W * 2);
-		}
-
-	} else if (_renderMode == Common::kRenderEGA) {
+	} else if (_renderMode == Common::kRenderEGA && !_useHiResEGADithering) {
 		uint32 len = SCREEN_W * SCREEN_H;
 		while (len--)
 			*dst++ = *src++ & 0x0f;
-
 	} else {
 		copyPage(srcPage, dstPage);
 	}
@@ -306,111 +273,6 @@ void Screen_EoB::convertPage(int srcPage, int dstPage, const uint8 *cgaMapping)
 		_forceFullUpdate = true;
 }
 
-void Screen_EoB::fillRect(int x1, int y1, int x2, int y2, uint8 color, int pageNum, bool xored) {
-	if (!_useHiResEGADithering) {
-		Screen::fillRect(x1, y1, x2, y2, color, pageNum, xored);
-		return;
-	}
-
-	assert(x2 < SCREEN_W && y2 < SCREEN_H);
-	if (pageNum == -1)
-		pageNum = _curPage;
-
-	uint16 pitch = (SCREEN_W - (x2 - x1 + 1)) * _pageScaleFactor[pageNum];
-	uint8 col1 = (_egaDitheringTable[color] >> 4);
-	uint8 col2 = (_egaDitheringTable[color] & 0x0f);
-
-	x1 *= _pageScaleFactor[pageNum];
-	y1 *= _pageScaleFactor[pageNum];
-	x2 *= _pageScaleFactor[pageNum];
-	y2 *= _pageScaleFactor[pageNum];
-	uint16 w = x2 - x1 + _pageScaleFactor[pageNum];
-	uint16 h = y2 - y1 + _pageScaleFactor[pageNum];
-
-	uint8 *dst = getPagePtr(pageNum) + y1 * SCREEN_W * _pageScaleFactor[pageNum] + x1;
-	if (pageNum == 0 || pageNum == 1)
-		addDirtyRect(x1, y1, w, h);
-
-	while (h--) {
-		for (uint16 w1 = w; w1; w1 -= 2) {
-			*dst++ = col1;
-			*dst++ = col2;
-		}
-		dst += pitch;
-	}
-}
-
-void Screen_EoB::drawLine(bool vertical, int x, int y, int length, int color) {
-	if (!_useHiResEGADithering) {
-		Screen::drawLine(vertical, x, y, length, color);
-		return;
-	}
-
-	uint16 pitch = (SCREEN_W - 1) * _pageScaleFactor[_curPage];
-	uint8 col1 = (_egaDitheringTable[color] >> 4);
-	uint8 col2 = (_egaDitheringTable[color] & 0x0f);
-
-	x *= _pageScaleFactor[_curPage];
-	y *= _pageScaleFactor[_curPage];
-	length *= _pageScaleFactor[_curPage];
-	uint8 *ptr = getPagePtr(_curPage) + y * SCREEN_W * _pageScaleFactor[_curPage] + x;
-	uint8 *ptr2 = ptr + SCREEN_W * _pageScaleFactor[_curPage];
-
-	if (vertical) {
-		assert((y + length) <= SCREEN_H * _pageScaleFactor[_curPage]);
-		int currLine = 0;
-		while (currLine < length) {
-			*ptr++ = col1;
-			*ptr++ = col2;
-			ptr += pitch;
-			currLine++;
-		}
-	} else {
-		assert((x + length) <= SCREEN_W * _pageScaleFactor[_curPage]);
-		int currLine = 0;
-		while (currLine < length) {
-			*ptr++ = *ptr2++ = col1;
-			*ptr++ = *ptr2++ = col2;
-			currLine += 2;
-		}
-	}
-
-	if (_curPage == 0 || _curPage == 1)
-		addDirtyRect(x, y, (vertical) ? _pageScaleFactor[_curPage] : length, (vertical) ? length : _pageScaleFactor[_curPage]);
-}
-
-uint8 Screen_EoB::getPagePixel(int pageNum, int x, int y) {
-	if (!_useHiResEGADithering)
-		return Screen::getPagePixel(pageNum, x, y);
-
-	x *= _pageScaleFactor[_curPage];
-	y *= _pageScaleFactor[_curPage];
-	uint8 *pos = &_pagePtrs[pageNum][y * SCREEN_W * _pageScaleFactor[_curPage] + x];
-
-	return _egaPixelValueTable[(pos[0] << 4) | (pos[1] & 0x0f)];
-}
-
-void Screen_EoB::setPagePixel(int pageNum, int x, int y, uint8 color) {
-	if (!_useHiResEGADithering) {
-		Screen::setPagePixel(pageNum, x, y, color);
-		return;
-	}
-
-	assert(pageNum < SCREEN_PAGE_NUM);
-	assert(x >= 0 && x < SCREEN_W && y >= 0 && y < SCREEN_H);
-
-	x *= _pageScaleFactor[_curPage];
-	y *= _pageScaleFactor[_curPage];
-
-	if (pageNum == 0 || pageNum == 1)
-		addDirtyRect(x, y, _pageScaleFactor[pageNum], _pageScaleFactor[pageNum]);
-
-	uint8 *pos = &_pagePtrs[pageNum][y * SCREEN_W * _pageScaleFactor[_curPage] + x];
-	uint8 *pos2 = pos + SCREEN_W * _pageScaleFactor[_curPage];
-	pos[0] = pos2[0] = _egaDitheringTable[color] >> 4;
-	pos[1] = pos2[1] = _egaDitheringTable[color] & 0x0f;
-}
-
 void Screen_EoB::setScreenPalette(const Palette &pal) {
 	if (_useHiResEGADithering && pal.getNumColors() != 16) {
 		generateEGADitheringTable(pal);
@@ -444,7 +306,7 @@ uint8 *Screen_EoB::encodeShape(uint16 x, uint16 y, uint16 w, uint16 h, bool enco
 	uint8 *srcLineStart = getPagePtr(_curPage | 1) + y * 320 + (x << 3);
 	uint8 *src = srcLineStart;
 
-	if (_useLoResEGA)
+	if (_renderMode == Common::kRenderEGA && !_useHiResEGADithering)
 		encode8bit = false;
 
 	if (_renderMode == Common::kRenderCGA) {
@@ -568,11 +430,11 @@ uint8 *Screen_EoB::encodeShape(uint16 x, uint16 y, uint16 w, uint16 h, bool enco
 		*dst++ = (w & 0xff);
 		*dst++ = (h & 0xff);
 
-		if (_useLoResEGA) {
+		if (_renderMode != Common::kRenderEGA || _useHiResEGADithering) {
+			memset(dst, 0xff, 0x10);
+		} else {
 			for (int i = 0; i < 16; i++)
 				dst[i] = i;
-		} else {
-			memset(dst, 0xff, 0x10);
 		}
 
 		uint8 *pal = dst;
@@ -632,7 +494,7 @@ void Screen_EoB::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y,
 		y += _dsY1;
 	}
 
-	dst += (_dsX1 << 3) * _pageScaleFactor[pageNum];
+	dst += (_dsX1 << 3);
 	int16 dX = x - (_dsX1 << 3);
 	int16 dY = y;
 	int16 dW = _dsX2 - _dsX1;
@@ -704,11 +566,11 @@ void Screen_EoB::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y,
 			marginRight = w2 - marginLeft - width;
 		}
 
-		dst += (dY * SCREEN_W * _pageScaleFactor[pageNum] * _pageScaleFactor[pageNum] + dX * _pageScaleFactor[pageNum]);
+		dst += (dY * SCREEN_W + dX);
 		uint8 *dstL = dst;
 
 		if (pageNum == 0 || pageNum == 1)
-			addDirtyRect(rX * _pageScaleFactor[pageNum], rY * _pageScaleFactor[pageNum], rW * _pageScaleFactor[pageNum], rH * _pageScaleFactor[pageNum]);
+			addDirtyRect(rX, rY, rW, rH);
 
 		while (dH--) {
 			int16 xpos = (int16) marginLeft;
@@ -743,7 +605,7 @@ void Screen_EoB::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y,
 				} while (xpos > 0);
 			}
 
-			dst -= (xpos * _pageScaleFactor[pageNum]);
+			dst -= xpos;
 			xpos += width;
 
 			while (xpos > 0) {
@@ -752,12 +614,12 @@ void Screen_EoB::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y,
 				src += pixelStep;
 
 				if (m) {
-					drawShapeSetPixel(dst, c, SCREEN_W * _pageScaleFactor[pageNum]);
-					dst += _pageScaleFactor[pageNum];
+					drawShapeSetPixel(dst, c);
+					dst++;
 					xpos--;
 				} else {
 					uint8 len = (flags & 1) ? src[1] : src[0];
-					dst += (len * _pageScaleFactor[pageNum]);
+					dst += len;
 					xpos -= len;
 					src += pixelStep;
 				}
@@ -783,7 +645,7 @@ void Screen_EoB::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y,
 				} while (xpos > 0);
 			}
 
-			dstL += SCREEN_W * _pageScaleFactor[pageNum] * _pageScaleFactor[pageNum];
+			dstL += SCREEN_W;
 			dst = dstL;
 			if (flags & 1)
 				src = src2 + 1;
@@ -851,12 +713,12 @@ void Screen_EoB::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y,
 		if (d < width)
 			width = d;
 
-		dst += (dY * _pageScaleFactor[pageNum] * SCREEN_W * _pageScaleFactor[pageNum] + dX * _pageScaleFactor[pageNum]);
+		dst += (dY * SCREEN_W + dX);
 
 		if (pageNum == 0 || pageNum == 1)
-			addDirtyRect(rX * _pageScaleFactor[pageNum], rY * _pageScaleFactor[pageNum], rW * _pageScaleFactor[pageNum], rH * _pageScaleFactor[pageNum]);
+			addDirtyRect(rX, rY, rW, rH);
 
-		int pitch = SCREEN_W * _pageScaleFactor[pageNum] * _pageScaleFactor[pageNum] - width * _pageScaleFactor[pageNum];
+		int pitch = SCREEN_W - width;
 		int16 lineSrcStep = (w2 - width) / pixelsPerByte;
 		uint8 lineSrcStepRemainder = (w2 - width) % pixelsPerByte;
 
@@ -899,8 +761,8 @@ void Screen_EoB::drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y,
 				}
 				uint8 col = (pixelsPerByte == 2) ? pal[(in >> shift) & pixelPackingMask] : (*dst & ((trans >> shift) & (pixelPackingMask))) | pal[(in >> shift) & pixelPackingMask];
 				if (col || pixelsPerByte == 4)
-					drawShapeSetPixel(dst, col, SCREEN_W * _pageScaleFactor[pageNum]);
-				dst += _pageScaleFactor[pageNum];
+					drawShapeSetPixel(dst, col);
+				dst++;
 				shift = ((shift - (pixelStep * pixelPacking)) & 7);
 			}
 			src += lineSrcStep;
@@ -1367,15 +1229,14 @@ const uint8 *Screen_EoB::getEGADitheringTable() {
 	return _egaDitheringTable;
 }
 
-void Screen_EoB::drawShapeSetPixel(uint8 *dst, uint8 col, uint16 pitch) {
+void Screen_EoB::drawShapeSetPixel(uint8 *dst, uint8 col) {
 	if ((_renderMode != Common::kRenderCGA && _renderMode != Common::kRenderEGA) || _useHiResEGADithering) {
 		if (_shapeFadeMode[0]) {
 			if (_shapeFadeMode[1]) {
-				col = _useHiResEGADithering ? _egaPixelValueTable[(dst[0] << 4) | (dst[1] & 0x0f)] : *dst;
+				col = *dst;
 			} else {
 				_shapeFadeInternal &= 7;
-				 col = _useHiResEGADithering ? _egaPixelValueTable[(dst[_shapeFadeInternal] << 4) | (dst[_shapeFadeInternal + 1] & 0x0f)] : dst[_shapeFadeInternal];
-				_shapeFadeInternal++;
+				col = *(dst + _shapeFadeInternal++);
 			}
 		}
 
@@ -1386,13 +1247,7 @@ void Screen_EoB::drawShapeSetPixel(uint8 *dst, uint8 col, uint16 pitch) {
 		}
 	}
 
-	if (_useHiResEGADithering) {
-		col = _egaDitheringTable[col];
-		dst[0] = dst[pitch] = col >> 4;
-		dst[1] = dst[pitch + 1] = col & 0x0f;
-	} else {
-		*dst = col;
-	}
+	*dst = col;
 }
 
 void Screen_EoB::scaleShapeProcessLine2Bit(uint8 *&shpDst, const uint8 *&shpSrc, uint32 transOffsetDst, uint32 transOffsetSrc) {
@@ -1479,10 +1334,6 @@ void Screen_EoB::generateEGADitheringTable(const Palette &pal) {
 		}
 		*dst++ = col;
 	}
-
-	memset(_egaPixelValueTable, 0, 256);
-	for (int i = 0; i < 256; i++)
-		_egaPixelValueTable[_egaDitheringTable[i]] = i;
 }
 
 void Screen_EoB::generateCGADitheringTables(const uint8 *mappingData) {
@@ -1546,11 +1397,10 @@ const uint8 Screen_EoB::_egaMatchTable[] = {
 uint16 *OldDOSFont::_cgaDitheringTable = 0;
 int OldDOSFont::_numRef = 0;
 
-OldDOSFont::OldDOSFont(Common::RenderMode mode, bool useHiResEGADithering) : _renderMode(mode), _useHiResEGADithering(useHiResEGADithering) {
+OldDOSFont::OldDOSFont(Common::RenderMode mode) : _renderMode(mode) {
 	_data = 0;
 	_width = _height = _numGlyphs = 0;
 	_bitmapOffsets = 0;
-	_useLoResEGA = (_renderMode == Common::kRenderEGA && !_useHiResEGADithering);
 
 	_numRef++;
 	if (!_cgaDitheringTable && _numRef == 1) {
@@ -1662,22 +1512,14 @@ void OldDOSFont::drawChar(uint16 c, byte *dst, int pitch) const {
 	int w = (_width - 1) >> 3;
 	pitch -= _width;
 
-	if (_useHiResEGADithering)
-		pitch *= 2;
-
 	uint8 color1 = _colorMap[1];
 	uint8 color2 = _colorMap[0];
 
-	uint8 colEGA11 = _colorMap[3] >> 4;
-	uint8 colEGA12 = _colorMap[3] & 0x0f;
-	uint8 colEGA21 = _colorMap[2] >> 4;
-	uint8 colEGA22 = _colorMap[2] & 0x0f;
-
 	static const uint16 cgaColorMask[] = { 0, 0x5555, 0xAAAA, 0xFFFF };
 	uint16 cgaMask1 = cgaColorMask[color1 & 3];
 	uint16 cgaMask2 = cgaColorMask[color2 & 3];
 
-	if (_renderMode == Common::kRenderCGA || _useLoResEGA) {
+	if (_renderMode == Common::kRenderCGA || _renderMode == Common::kRenderEGA) {
 		color1 &= 0x0f;
 		color2 &= 0x0f;
 	}
@@ -1734,27 +1576,13 @@ void OldDOSFont::drawChar(uint16 c, byte *dst, int pitch) const {
 						break;
 					}
 
-					if (_useHiResEGADithering) {
-						if (s & i) {
-							if (color1) {
-								dst[0] = dst2[0] = colEGA11;
-								dst[1] = dst2[1] = colEGA12;
-							}
-						} else if (color2) {
-							dst[0] = dst2[0] = colEGA21;
-							dst[1] = dst2[1] = colEGA22;
-						}
-						dst += 2;
-						dst2 += 2;
-					} else {
-						if (s & i) {
-							if (color1)
-								*dst = color1;
-						} else if (color2) {
-							*dst = color2;
-						}
-						dst++;
+					if (s & i) {
+						if (color1)
+							*dst = color1;
+					} else if (color2) {
+						*dst = color2;
 					}
+					dst++;
 				}
 
 				if (cW)
diff --git a/engines/kyra/screen_eob.h b/engines/kyra/screen_eob.h
index fc40cfe903..2e3cbde452 100644
--- a/engines/kyra/screen_eob.h
+++ b/engines/kyra/screen_eob.h
@@ -45,7 +45,6 @@ public:
 
 	void loadFileDataToPage(Common::SeekableReadStream *s, int pageNum, uint32 size);
 
-	void printText(const char *str, int x, int y, uint8 color1, uint8 color2);
 	void printShadedText(const char *string, int x, int y, int col1, int col2);
 
 	void loadEoBBitmap(const char *file, const uint8 *cgaMapping, int tempPage, int destPage, int convertToPage);
@@ -53,11 +52,6 @@ public:
 
 	void convertPage(int srcPage, int dstPage, const uint8 *cgaMapping);
 
-	void fillRect(int x1, int y1, int x2, int y2, uint8 color, int pageNum = -1, bool xored = false);
-	void drawLine(bool vertical, int x, int y, int length, int color);
-	uint8 getPagePixel(int pageNum, int x, int y);
-	void setPagePixel(int pageNum, int x, int y, uint8 color);
-
 	void setScreenPalette(const Palette &pal);
 	void getRealPalette(int num, uint8 *dst);
 
@@ -88,7 +82,7 @@ public:
 	const uint8 *getEGADitheringTable();
 
 private:
-	void drawShapeSetPixel(uint8 *dst, uint8 col, uint16 pitch);
+	void drawShapeSetPixel(uint8 *dst, uint8 col);
 	void scaleShapeProcessLine2Bit(uint8 *&shpDst, const uint8 *&shpSrc, uint32 transOffsetDst, uint32 transOffsetSrc);
 	void scaleShapeProcessLine4Bit(uint8 *&dst, const uint8 *&src);
 	bool posWithinRect(int posX, int posY, int x1, int y1, int x2, int y2);
@@ -115,7 +109,6 @@ private:
 	const uint8 *_cgaMappingDefault;
 
 	uint8 *_egaDitheringTable;
-	uint8 *_egaPixelValueTable;
 
 	static const uint8 _egaMatchTable[];
 	static const ScreenDim _screenDimTable[];