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diff --git a/engines/dreamweb/segment.h b/engines/dreamweb/segment.h
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-/* 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.
- *
- */
-
-#ifndef DREAMGEN_SEGMENT_H
-#define DREAMGEN_SEGMENT_H
-
-#include "common/array.h"
-#include "common/ptr.h"
-#include "common/hashmap.h"
-#include "common/list.h"
-
-namespace DreamGen {
-
-class WordRef {
- uint8 *_data;
- unsigned _index;
- uint16 _value;
-
-public:
- inline WordRef(Common::Array<uint8> &data, unsigned index) : _data(data.begin() + index), _index(index) {
- assert(index + 1 < data.size());
- _value = _data[0] | (_data[1] << 8);
- }
-
- inline WordRef& operator=(const WordRef &ref) {
- _value = ref._value;
- return *this;
- }
-
- inline WordRef& operator=(uint16 v) {
- _value = v;
- return *this;
- }
-
- inline operator uint16&() {
- return _value;
- }
-
- inline ~WordRef() {
- _data[0] = _value & 0xff;
- _data[1] = _value >> 8;
- _value = _data[0] | (_data[1] << 8);
- }
-};
-
-class Segment {
- Common::Array<uint8> data;
-
-public:
- Segment(uint size = 0) {
- if (size > 0)
- data.resize(size);
- }
-
- inline void assign(const uint8 *b, const uint8 *e) {
- data.assign(b, e);
- }
-
- inline uint8 &byte(unsigned index) {
- assert(index < data.size());
- return data[index];
- }
-
- inline WordRef word(unsigned index) {
- return WordRef(data, index);
- }
-
- inline uint8 *ptr(unsigned index, unsigned size) {
- assert(index + size <= data.size());
- return data.begin() + index;
- }
-};
-
-typedef Common::SharedPtr<Segment> SegmentPtr;
-
-class SegmentRef {
- uint16 _value;
- SegmentPtr _segment;
-
-public:
- SegmentRef(uint16 value = 0, SegmentPtr segment = SegmentPtr())
- : _value(value), _segment(segment) {
- }
-
- inline operator uint16() const {
- return _value;
- }
-
- SegmentPtr getSegmentPtr() const {
- return _segment;
- }
-
- inline uint8 &byte(unsigned index) {
- assert(_segment != 0);
- return _segment->byte(index);
- }
-
- inline WordRef word(unsigned index) {
- //debug(1, "getting word ref for %04x:%d", _value, index);
- assert(_segment != 0);
- return _segment->word(index);
- }
-
- inline void assign(const uint8 *b, const uint8 *e) {
- assert(_segment != 0);
- _segment->assign(b, e);
- }
-
- inline uint8 *ptr(unsigned index, unsigned size) {
- assert(_segment != 0);
- return _segment->ptr(index, size);
- }
-
-protected:
- SegmentRef &operator=(const SegmentRef &seg) {
- _value = seg._value;
- _segment = seg._segment;
- return *this;
- }
-
-};
-
-class SegmentManager;
-
-class MutableSegmentRef : public SegmentRef {
-protected:
- SegmentManager *_segMan;
-
-public:
- MutableSegmentRef(SegmentManager *segMan, uint16 value = 0, SegmentPtr segment = SegmentPtr())
- : _segMan(segMan), SegmentRef(value, segment) {
- }
-
- MutableSegmentRef(SegmentManager *segMan, SegmentRef seg)
- : _segMan(segMan), SegmentRef(seg) {
- }
-
- inline MutableSegmentRef& operator=(const uint16 id);
-
-};
-
-
-class SegmentManager {
-private:
- typedef Common::HashMap<uint16, SegmentPtr> SegmentMap;
- SegmentMap _segments;
-
- typedef Common::List<uint16> FreeSegmentList;
- FreeSegmentList _freeSegments;
-
- enum { kDefaultDataSegment = 0x1000 };
-
-public:
-
- SegmentPtr _realData; ///< the primary data segment, points to a huge blob of binary data
- SegmentRef data; ///< fake segment register always pointing to data segment
-
-public:
- SegmentManager() :
- _realData(new Segment()),
- data(kDefaultDataSegment, _realData) {
-
- _segments[kDefaultDataSegment] = data.getSegmentPtr();
- }
-
- SegmentRef getSegment(uint16 value) {
- SegmentMap::iterator i = _segments.find(value);
- if (i != _segments.end())
- return SegmentRef(value, i->_value);
- else
- return SegmentRef(value);
- }
-
- SegmentRef allocateSegment(uint size) {
- unsigned id;
- if (_freeSegments.empty())
- id = kDefaultDataSegment + _segments.size();
- else {
- id = _freeSegments.front();
- _freeSegments.pop_front();
- }
- assert(!_segments.contains(id));
- SegmentPtr seg(new Segment(size));
- _segments[id] = seg;
- return SegmentRef(id, seg);
- }
-
- void deallocateSegment(uint16 id) {
- SegmentMap::iterator i = _segments.find(id);
- if(i != _segments.end()) {
- _segments.erase(i);
- _freeSegments.push_back(id);
- } else {
- debug("Deallocating non existent segment! Client code should be fixed.");
- }
- }
-
-};
-
-
-inline MutableSegmentRef& MutableSegmentRef::operator=(const uint16 id) {
- SegmentRef::operator=(_segMan->getSegment(id));
- return *this;
-}
-
-} // End of namespace DreamGen
-
-#endif