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engines/ngi/utils.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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef NGI_UTILS_H
+#define NGI_UTILS_H
+
+#include "common/hash-ptr.h"
+#include "common/hash-str.h"
+#include "common/array.h"
+#include "common/file.h"
+
+namespace NGI {
+
+class CObject;
+class NGIArchive;
+
+typedef Common::HashMap<void *, int> ObjHash;
+
+typedef Common::HashMap<Common::String, int, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> ClassMap;
+
+class MfcArchive : public Common::SeekableReadStream, public Common::WriteStream {
+	ClassMap _classMap;
+	Common::Array<CObject *> _objectMap;
+	Common::Array<int> _objectIdMap;
+	ObjHash _objectHash;
+
+	int _lastIndex;
+	int _level;
+
+	Common::SeekableReadStream *_stream;
+	Common::WriteStream *_wstream;
+
+public:
+	MfcArchive(Common::SeekableReadStream *file);
+	MfcArchive(Common::WriteStream *file);
+
+	Common::String readPascalString(bool twoByte = false);
+	void writePascalString(const Common::String &str, bool twoByte = false);
+	int readCount();
+	CObject *parseClass(bool *isCopyReturned);
+
+	/** ownership of returned object is passed to caller */
+	template <typename T>
+	T *readClass() {
+		CObject *obj = readBaseClass();
+		if (!obj)
+			return nullptr;
+
+		T *res = dynamic_cast<T *>(obj);
+		assert(res);
+		return res;
+	}
+
+	void writeObject(CObject *obj);
+
+	void incLevel() { _level++; }
+	void decLevel() { _level--; }
+	int getLevel() { return _level; }
+
+	bool eos() const override { return _stream->eos(); }
+	uint32 read(void *dataPtr, uint32 dataSize) override { return _stream->read(dataPtr, dataSize); }
+	int64 pos() const override { return _stream ? _stream->pos() : _wstream->pos(); }
+	int64 size() const override { return _stream->size(); }
+	bool seek(int64 offset, int whence = SEEK_SET) override { return _stream->seek(offset, whence); }
+
+	uint32 write(const void *dataPtr, uint32 dataSize) override { return _wstream->write(dataPtr, dataSize); }
+
+private:
+	void init();
+	CObject *readBaseClass();
+};
+
+enum ObjType {
+	kObjTypeDefault,
+	kObjTypeExCommand,
+	kObjTypeExCommand2,
+	kObjTypeModalSaveGame,
+	kObjTypeMovGraph,
+	kObjTypeMovGraphLink,
+	kObjTypeMovGraphNode,
+	kObjTypeMctlCompound,
+	kObjTypeObjstateCommand,
+	kObjTypePictureObject,
+	kObjTypeStaticANIObject,
+	kObjTypeGameVar
+};
+
+class CObject {
+public:
+	ObjType _objtype;
+	uint _cnum;
+
+	CObject() : _objtype(kObjTypeDefault), _cnum(0) {}
+	virtual bool load(MfcArchive &in) { return true; }
+	virtual void save(MfcArchive &out) { error("Not implemented for obj type: %d", _objtype); }
+	virtual ~CObject() {}
+
+	bool loadFile(const Common::Path &fname);
+};
+
+template <class T>
+class ObList : public Common::List<T *>, public CObject {
+public:
+	bool load(MfcArchive &file) override {
+		debugC(5, kDebugLoading, "ObList::load()");
+		int count = file.readCount();
+
+		debugC(9, kDebugLoading, "ObList::count: %d:", count);
+
+		for (int i = 0; i < count; i++) {
+			debugC(9, kDebugLoading, "ObList::[%d]", i);
+			T *t = file.readClass<T>();
+
+			this->push_back(t);
+		}
+
+		return true;
+	}
+};
+
+class MemoryObject : CObject {
+	friend class Picture;
+	friend class Scene;
+
+ protected:
+	Common::Path _memfilename;
+	int _mfield_8;
+	int _mfield_C;
+	int _mfield_10;
+	char _mfield_14;
+	byte *_data;
+	int _dataSize;
+	int _mflags;
+	NGIArchive *_libHandle;
+
+ public:
+	MemoryObject();
+	~MemoryObject() override;
+
+	bool load(MfcArchive &file) override;
+	void loadFile(const Common::Path &filename);
+	void load() { loadFile(_memfilename); }
+	byte *getData();
+	byte *loadData();
+	int getDataSize() const { return _dataSize; }
+
+	bool testFlags();
+
+	void freeData();
+};
+
+class MemoryObject2 : public MemoryObject {
+	friend class Picture;
+
+ protected:
+	byte **_rows;
+
+ public:
+	MemoryObject2();
+	~MemoryObject2() override;
+	bool load(MfcArchive &file) override;
+
+	void copyData(byte *src, int dataSize);
+};
+
+class ObArray : public Common::Array<CObject>, public CObject {
+ public:
+	bool load(MfcArchive &file) override;
+};
+
+class DWordArray : public Common::Array<int32>, public CObject {
+ public:
+	bool load(MfcArchive &file) override;
+};
+
+Common::Path genFileName(int superId, int sceneId, const char *ext);
+byte *transCyrillic(const Common::String &str);
+
+} // End of namespace NGI
+
+#endif /* NGI_UTILS_H */