TOLTECS: Initial checkin

1 files changed, 115 insertions, 0 deletions

diff --git a/engines/toltecs/resource.h b/engines/toltecs/resource.h
new file mode 100644
index 0000000000..c15918be25
--- /dev/null
+++ b/engines/toltecs/resource.h
@@ -0,0 +1,115 @@
+/* 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 TOLTECS_RESOURCE_H
+#define TOLTECS_RESOURCE_H
+
+#include "common/scummsys.h"
+#include "common/endian.h"
+#include "common/util.h"
+#include "common/file.h"
+#include "common/savefile.h"
+#include "common/system.h"
+#include "common/hash-str.h"
+#include "common/events.h"
+#include "common/keyboard.h"
+#include "common/array.h"
+
+#include "sound/audiostream.h"
+#include "sound/mixer.h"
+#include "sound/voc.h"
+#include "sound/audiocd.h"
+
+#include "engines/engine.h"
+
+namespace Toltecs {
+
+/*
+	TODO:
+	
+	ArchiveReader:
+	    - Add support for external resources; and check if they're used
+
+*/
+
+const uint kMaxCacheItems = 1024;
+const uint kMaxCacheSize = 8 * 1024 * 1024; // 8 MB
+
+
+class ArchiveReader : public Common::File {
+public:
+    ArchiveReader();
+    ~ArchiveReader();
+    
+    void openArchive(const char *filename);
+    
+    // Returns the size of the opened resource
+    uint32 openResource(uint resIndex);
+    // Closes the resource
+    void closeResource();
+    // Returns the size of the resource
+    uint32 getResourceSize(uint resIndex);
+
+    void dump(uint resIndex, const char *prefix = NULL);
+    
+protected:
+	uint32 _offsets[10000];
+
+};
+
+class ResourceCache {
+public:
+    ResourceCache(ToltecsEngine *vm);
+    ~ResourceCache();
+    
+    byte *load(uint resIndex);
+    uint32 getCurItemSize() const { return _curItemSize; }
+
+protected:
+
+	struct CacheItem {
+	    uint resIndex;
+	    //int value;	// what is this?
+	    int32 offset;	// offset into _base
+	    uint32 size;    // size of the item
+	};
+
+    ToltecsEngine *_vm;
+    
+	byte *_base;
+	uint32 _bytesUsed;
+	uint32 _curItemOffset, _curItemSize;
+	
+	CacheItem _cache[kMaxCacheItems];
+	uint _cacheCount;
+	
+	bool existsItem(uint resIndex);
+	byte *addItem(uint resIndex, uint32 size);
+	void checkCapacity(uint32 size);
+
+};
+
+
+} // End of namespace Toltecs
+
+#endif /* TOLTECS_H */