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engines/kyra/resource/resource_intern.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 KYRA_RESOURCE_INTERN_H
+#define KYRA_RESOURCE_INTERN_H
+
+#include "common/archive.h"
+#include "common/hash-str.h"
+#include "common/hashmap.h"
+#include "common/str.h"
+#include "common/list.h"
+#include "common/macresman.h"
+#include "common/stream.h"
+
+namespace Kyra {
+
+class Resource;
+
+class PlainArchive : public Common::Archive {
+public:
+	struct Entry {
+		Entry() : offset(0), size(0) {}
+		Entry(uint32 o, uint32 s) : offset(o), size(s) {}
+
+		uint32 offset;
+		uint32 size;
+	};
+
+	PlainArchive(Common::ArchiveMemberPtr file);
+
+	void addFileEntry(const Common::Path &name, const Entry entry);
+	Entry getFileEntry(const Common::Path &name) const;
+
+	// Common::Archive API implementation
+	bool hasFile(const Common::Path &path) const override;
+	int listMembers(Common::ArchiveMemberList &list) const override;
+	const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
+	Common::SeekableReadStream *createReadStreamForMember(const Common::Path &path) const override;
+private:
+	typedef Common::HashMap<Common::Path, Entry, Common::Path::IgnoreCase_Hash, Common::Path::IgnoreCase_EqualTo> FileMap;
+
+	Common::ArchiveMemberPtr _file;
+	FileMap _files;
+};
+
+class TlkArchive : public Common::Archive {
+public:
+	TlkArchive(Common::ArchiveMemberPtr file, uint16 entryCount, const uint32 *fileEntries);
+	~TlkArchive() override;
+
+	bool hasFile(const Common::Path &path) const override;
+	int listMembers(Common::ArchiveMemberList &list) const override;
+	const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
+	Common::SeekableReadStream *createReadStreamForMember(const Common::Path &path) const override;
+private:
+	Common::ArchiveMemberPtr _file;
+
+	const uint32 *findFile(const Common::Path &path) const;
+
+	const uint16 _entryCount;
+	const uint32 *const _fileEntries;
+};
+
+class CachedArchive : public Common::Archive {
+public:
+	struct InputEntry {
+		Common::Path name;
+
+		byte *data;
+		uint32 size;
+	};
+
+	typedef Common::List<InputEntry> FileInputList;
+
+	CachedArchive(const FileInputList &files);
+	~CachedArchive() override;
+
+	bool hasFile(const Common::Path &path) const override;
+	int listMembers(Common::ArchiveMemberList &list) const override;
+	const Common::ArchiveMemberPtr getMember(const Common::Path &path) const override;
+	Common::SeekableReadStream *createReadStreamForMember(const Common::Path &path) const override;
+private:
+	struct Entry {
+		byte *data;
+		uint32 size;
+	};
+
+	typedef Common::HashMap<Common::Path, Entry, Common::Path::IgnoreCase_Hash, Common::Path::IgnoreCase_EqualTo> FileMap;
+	FileMap _files;
+};
+
+
+class ResArchiveLoader {
+public:
+	virtual ~ResArchiveLoader() {}
+	virtual bool checkFilename(const Common::String &filename) const = 0;
+	virtual bool isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const = 0;
+	virtual Common::Archive *load(Common::ArchiveMemberPtr file, Common::SeekableReadStream &stream) const = 0;
+};
+
+class ResLoaderPak : public ResArchiveLoader {
+public:
+	bool checkFilename(const Common::String &filename) const override;
+	bool isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const override;
+	Common::Archive *load(Common::ArchiveMemberPtr file, Common::SeekableReadStream &stream) const override;
+};
+
+class ResLoaderInsMalcolm : public ResArchiveLoader {
+public:
+	bool checkFilename(const Common::String &filename) const override;
+	bool isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const override;
+	Common::Archive *load(Common::ArchiveMemberPtr file, Common::SeekableReadStream &stream) const override;
+};
+
+class ResLoaderTlk : public ResArchiveLoader {
+public:
+	bool checkFilename(const Common::String &filename) const override;
+	bool isLoadable(const Common::String &filename, Common::SeekableReadStream &stream) const override;
+	Common::Archive *load(Common::ArchiveMemberPtr file, Common::SeekableReadStream &stream) const override;
+};
+
+class InstallerLoader {
+public:
+	static Common::Archive *load(Resource *owner, const Common::Path &filename, const Common::String &extension, const uint8 offset);
+};
+
+class StuffItLoader {
+public:
+	static Common::Archive *load(Resource *owner, const Common::Path &filename);
+	static Common::Archive *load(Resource *owner, Common::SeekableReadStream *stream, const Common::String &debugName);
+};
+
+} // End of namespace Kyra
+
+#endif