M4: Removed the M4/MADS engine from trunk

1 files changed, 0 insertions, 190 deletions

diff --git a/engines/m4/compression.cpp b/engines/m4/compression.cpp
deleted file mode 100644
index 65a25c14e3..0000000000
--- a/engines/m4/compression.cpp
+++ /dev/null
@@ -1,190 +0,0 @@
-/* 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.
- *
- */
-
-#include "m4/compression.h"
-#include "m4/m4.h"
-
-#include "common/memstream.h"
-#include "common/textconsole.h"
-
-namespace M4 {
-
-const char *madsPackString = "MADSPACK";
-
-bool MadsPack::isCompressed(Common::SeekableReadStream *stream) {
-	// Check whether the passed stream is packed
-
-	char tempBuffer[8];
-	stream->seek(0);
-	if (stream->read(tempBuffer, 8) == 8) {
-		if (!strncmp(tempBuffer, madsPackString, 8))
-			return true;
-	}
-
-	return false;
-}
-
-MadsPack::MadsPack(Common::SeekableReadStream *stream) {
-	initialize(stream);
-}
-
-MadsPack::MadsPack(const char *resourceName, MadsM4Engine* vm) {
-	Common::SeekableReadStream *stream = vm->_resourceManager->get(resourceName);
-	initialize(stream);
-	vm->_resourceManager->toss(resourceName);
-}
-
-void MadsPack::initialize(Common::SeekableReadStream *stream) {
-	if (!MadsPack::isCompressed(stream))
-		error("Attempted to decompress a resource that was not MadsPacked");
-
-	stream->seek(14);
-	_count = stream->readUint16LE();
-	_items = new MadsPackEntry[_count];
-
-	byte *headerData = new byte[0xA0];
-	byte *header = headerData;
-	stream->read(headerData, 0xA0);
-
-	for (int i = 0; i < _count; ++i, header += 10) {
-		// Get header data
-		_items[i].hash = READ_LE_UINT16(header);
-		_items[i].size = READ_LE_UINT32(header + 2);
-		_items[i].compressedSize = READ_LE_UINT32(header + 6);
-
-		_items[i].data = new byte[_items[i].size];
-		if (_items[i].size == _items[i].compressedSize) {
-			// Entry isn't compressed
-			stream->read(_items[i].data, _items[i].size);
-		} else {
-			// Decompress the entry
-			byte *compressedData = new byte[_items[i].compressedSize];
-			stream->read(compressedData, _items[i].compressedSize);
-
-			FabDecompressor fab;
-			fab.decompress(compressedData, _items[i].compressedSize, _items[i].data, _items[i].size);
-			delete[] compressedData;
-		}
-	}
-
-	delete[] headerData;
-	_dataOffset = stream->pos();
-}
-
-Common::SeekableReadStream *MadsPack::getItemStream(int index) {
-	return new Common::MemoryReadStream(_items[index].data, _items[index].size, DisposeAfterUse::NO);
-}
-
-MadsPack::~MadsPack() {
-	for (int i = 0; i < _count; ++i)
-		delete[] _items[i].data;
-	delete[] _items;
-}
-
-//--------------------------------------------------------------------------
-
-void FabDecompressor::decompress(const byte *srcData, int srcSize, byte *destData, int destSize) {
-	byte copyLen, copyOfsShift, copyOfsMask, copyLenMask;
-	unsigned long copyOfs;
-	byte *destP;
-
-	// Validate that the data starts with the FAB header
-	if (strncmp((const char *)srcData, "FAB", 3) != 0)
-		error("FabDecompressor - Invalid compressed data");
-
-	int shiftVal = srcData[3];
-	if ((shiftVal < 10) || (shiftVal > 13))
-		error("FabDecompressor - Invalid shift start");
-
-	copyOfsShift = 16 - shiftVal;
-	copyOfsMask = 0xFF << (shiftVal - 8);
-	copyLenMask = (1 << copyOfsShift) - 1;
-	copyOfs = 0xFFFF0000;
-	destP = destData;
-
-	// Initialize data fields
-	_srcData = srcData;
-	_srcP = _srcData + 6;
-	_srcSize = srcSize;
-	_bitsLeft = 16;
-	_bitBuffer = READ_LE_UINT16(srcData + 4);
-
-	for (;;) {
-		if (getBit() == 0) {
-			if (getBit() == 0) {
-				copyLen = ((getBit() << 1) | getBit()) + 2;
-				copyOfs = *_srcP++ | 0xFFFFFF00;
-			} else {
-				copyOfs = (((_srcP[1] >> copyOfsShift) | copyOfsMask) << 8) | _srcP[0];
-				copyLen = _srcP[1] & copyLenMask;
-				_srcP += 2;
-				if (copyLen == 0) {
-					copyLen = *_srcP++;
-					if (copyLen == 0)
-						break;
-					else if (copyLen == 1)
-						continue;
-					else
-						copyLen++;
-				} else {
-					copyLen += 2;
-				}
-				copyOfs |= 0xFFFF0000;
-			}
-			while (copyLen-- > 0) {
-				if (destP - destData == destSize)
-					error("FabDecompressor - Decompressed data exceeded specified size");
-
-				*destP = destP[(signed int)copyOfs];
-				destP++;
-			}
-		} else {
-			if (_srcP - srcData == srcSize)
-				error("FabDecompressor - Passed end of input buffer during decompression");
-			if (destP - destData == destSize)
-				error("FabDecompressor - Decompressed data exceeded specified size");
-
-			*destP++ = *_srcP++;
-		}
-	}
-
-	if (destP - destData != destSize)
-		error("FabDecompressor - Decompressed data does not match header decompressed size");
-}
-
-int FabDecompressor::getBit() {
-	_bitsLeft--;
-	if (_bitsLeft == 0) {
-		if (_srcP - _srcData == _srcSize)
-			error("FabDecompressor - Passed end of input buffer during decompression");
-
-		_bitBuffer = (READ_LE_UINT16(_srcP) << 1) | (_bitBuffer & 1);
-		_srcP += 2;
-		_bitsLeft = 16;
-	}
-
-	int bit = _bitBuffer & 1;
-	_bitBuffer >>= 1;
-	return bit;
-}
-
-} // End of namespace M4