From d03dc08b64073044267fb4b3ca6704fd62a19741 Mon Sep 17 00:00:00 2001
From: Sven Hesse
Date: Wed, 24 Jun 2009 21:49:37 +0000
Subject: Wrapping resources (out of TOT, EXT, IM? and EX? files) loading into
 its own class

svn-id: r41839
---
 engines/gob/resources.h | 207 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 207 insertions(+)
 create mode 100644 engines/gob/resources.h

(limited to 'engines/gob/resources.h')

diff --git a/engines/gob/resources.h b/engines/gob/resources.h
new file mode 100644
index 0000000000..80acef645c
--- /dev/null
+++ b/engines/gob/resources.h
@@ -0,0 +1,207 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef GOB_RESOURCES_H
+#define GOB_RESOURCES_H
+
+#include "common/str.h"
+
+namespace Common {
+	class MemoryReadStream;
+}
+
+namespace Gob {
+
+class GobEngine;
+
+class Resource {
+public:
+	Resource(byte *data, int32 size, bool needFree = true,
+			int16 width = 0, int16 height = 0);
+	~Resource();
+
+	byte *getData  () const;
+	int32 getSize  () const;
+	int16 getWidth () const;
+	int16 getHeight() const;
+
+	Common::MemoryReadStream *stream() const;
+
+private:
+	byte *_data;
+	int32 _size;
+	int16 _width;
+	int16 _height;
+	bool  _needFree;
+
+	Common::MemoryReadStream *_stream;
+};
+
+class TextItem {
+public:
+	TextItem(byte *data, int32 size);
+	~TextItem();
+
+	byte *getData() const;
+	int32 getSize() const;
+
+	Common::MemoryReadStream *stream() const;
+
+private:
+	byte *_data;
+	int32 _size;
+
+	Common::MemoryReadStream *_stream;
+};
+
+class Resources {
+public:
+	Resources(GobEngine *vm);
+	~Resources();
+
+	bool load(const Common::String &fileName);
+	void unload(bool del = true);
+
+	bool isLoaded() const;
+
+	Resource *getResource(uint16 id, int16 *width = 0, int16 *height = 0) const;
+	TextItem *getTextItem(uint16 id) const;
+
+	byte *getTexts() const;
+
+private:
+	// Structure sizes in the files
+	static const int kTOTResItemSize   = 4 + 2 + 2 + 2;
+	static const int kTOTResTableSize  = 2 + 1;
+	static const int kEXTResItemSize   = 4 + 2 + 2 + 2;
+	static const int kEXTResTableSize  = 2 + 1;
+	static const int kTOTTextTableSize = 2;
+	static const int kTOTTextItemSize  = 2 + 2;
+
+	enum ResourceType {
+		kResourceTOT,
+		kResourceIM,
+		kResourceEXT,
+		kResourceEX
+	};
+
+	struct TOTResourceItem {
+		ResourceType type;
+		int16 size;
+		int16 width;
+		int16 height;
+		union {
+			int32 offset;
+			int32 index;
+		};
+	};
+
+	struct TOTResourceTable {
+		int16 itemsCount;
+		byte unknown;
+		TOTResourceItem *items;
+		uint32 dataOffset;
+
+		TOTResourceTable();
+		~TOTResourceTable();
+	};
+
+	struct EXTResourceItem {
+		ResourceType type;
+		int32 offset;
+		uint16 size;
+		int16 width;
+		int16 height;
+		bool packed;
+	};
+
+	struct EXTResourceTable {
+		int16 itemsCount;
+		byte unknown;
+		EXTResourceItem *items;
+
+		EXTResourceTable();
+		~EXTResourceTable();
+	};
+
+	struct TOTTextItem {
+		uint16 offset;
+		int16 size;
+	};
+
+	struct TOTTextTable {
+		bool needFree;
+		int16 itemsCount;
+
+		byte *data;
+		int32 size;
+
+		TOTTextItem *items;
+
+		TOTTextTable();
+		~TOTTextTable();
+	};
+
+	GobEngine *_vm;
+
+	Common::String _totFile;
+	Common::String _extFile;
+	Common::String _exFile;
+
+	byte *_totData;
+	uint32 _totSize;
+
+	byte *_imData;
+	uint32 _imSize;
+
+	bool _hasLOM;
+	int32 _totResStart;
+
+	TOTResourceTable *_totResourceTable;
+	EXTResourceTable *_extResourceTable;
+	TOTTextTable     *_totTextTable;
+
+	bool loadTOTResourceTable();
+	bool loadEXTResourceTable();
+	bool loadTOTTextTable(const Common::String &fileBase);
+	bool loadIMFile();
+	bool loadEXFile();
+
+	byte *loadTOTLocTexts(const Common::String &fileBase, int32 &size);
+	bool getLocTextFile(char *locTextFile, int language);
+	Common::String getLocTextFile(const Common::String &fileBase, int language);
+
+	Resource *getTOTResource(uint16 id) const;
+	Resource *getEXTResource(uint16 id) const;
+
+	byte *getTOTData(TOTResourceItem &totItem) const;
+	byte *getIMData(TOTResourceItem &totItem)  const;
+	byte *getEXTData(EXTResourceItem &extItem, uint32 size) const;
+	byte *getEXData(EXTResourceItem &extItem,  uint32 size) const;
+};
+
+} // End of namespace Gob
+
+#endif // GOB_RESOURCES_H
-- 
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