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engines/scumm/imuse_digi/dimuse_bndmgr.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 SCUMM_IMUSE_DIGI_BUNDLE_MGR_H
+#define SCUMM_IMUSE_DIGI_BUNDLE_MGR_H
+
+#include "common/scummsys.h"
+#include "common/file.h"
+#include "scumm/imuse_digi/dimuse_defs.h"
+
+namespace Scumm {
+
+class BaseScummFile;
+
+class BundleDirCache {
+public:
+	struct AudioTable {
+		char filename[24];
+		int32 offset;
+		int32 size;
+	};
+
+	struct IndexNode {
+		char filename[24];
+		int32 index;
+	};
+
+private:
+
+	struct FileDirCache {
+		char fileName[20];
+		AudioTable *bundleTable;
+		int32 numFiles;
+		bool isCompressed;
+		IndexNode *indexTable;
+	} _bundleDirCache[4];
+
+	const ScummEngine *_vm;
+public:
+	BundleDirCache(const ScummEngine *vm);
+	~BundleDirCache();
+
+	int matchFile(const char *filename);
+	AudioTable *getTable(int slot);
+	IndexNode *getIndexTable(int slot);
+	int32 getNumFiles(int slot);
+	bool isSndDataExtComp(int slot);
+};
+
+class BundleMgr {
+
+private:
+	struct CompTable {
+		int32 offset;
+		int32 size;
+		int32 codec;
+	};
+
+	BundleDirCache *_cache;
+	BundleDirCache::AudioTable *_bundleTable;
+	BundleDirCache::IndexNode *_indexTable = nullptr;
+	CompTable *_compTable;
+
+	int _numFiles = 0;
+	int _numCompItems = 0;
+	int _lastBlockDecompressedSize = 0;
+	int _curSampleId = 0;
+	int _curDecompressedFilePos = 0;
+	BaseScummFile *_file;
+	bool _compTableLoaded = 0;
+	bool _isUncompressed = 0;
+	int _fileBundleId = 0;
+	byte _compOutputBuff[0x2000] = {};
+	byte *_compInputBuff = nullptr;
+	int _outputSize = 0;
+	int _lastBlock = 0;
+	bool loadCompTable(int32 index);
+
+public:
+
+	BundleMgr(const ScummEngine *vm, BundleDirCache *_cache);
+	~BundleMgr();
+
+	bool open(const char *filename, bool &isCompressed, bool errorFlag = false);
+	void close();
+	Common::SeekableReadStream *getFile(const char *filename, int32 &offset, int32 &size);
+	int32 seekFile(int32 offset, int size);
+	int32 readFile(const char *name, int32 size, byte **compFinal, bool headerOutside);
+	bool isExtCompBun(byte gameId);
+};
+
+} // End of namespace Scumm
+
+#endif