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engines/tinsel/handle.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/>.
+ *
+ * Graphics Memory Manager data structures
+ */
+
+#ifndef TINSEL_HANDLE_H
+#define TINSEL_HANDLE_H
+
+#include "common/path.h"
+#include "tinsel/dw.h"			// new data types
+
+namespace Common {
+class File;
+}
+
+namespace Tinsel {
+
+struct FONT;
+struct MEMHANDLE;
+struct PALETTE;
+struct IMAGE;
+struct ACTORDATA;
+struct PROCESS_STRUC;
+
+class Handle {
+public:
+	Handle();
+	virtual ~Handle();
+
+	/**
+	 * Loads the graphics handle table index file and preloads all the permanent graphics etc.
+	 */
+	void SetupHandleTable();
+
+	FONT *GetFont(SCNHANDLE offset);
+	PALETTE *GetPalette(SCNHANDLE offset);
+	const IMAGE *GetImage(SCNHANDLE offset);
+	void SetImagePalette(SCNHANDLE offset, SCNHANDLE palHandle);
+	SCNHANDLE GetFontImageHandle(SCNHANDLE offset);
+	const ACTORDATA *GetActorData(SCNHANDLE offset, uint32 count);
+	const PROCESS_STRUC *GetProcessData(SCNHANDLE offset, uint32 count);
+	byte *LockMem(SCNHANDLE offset);
+
+	void LockScene(SCNHANDLE offset);
+	void UnlockScene(SCNHANDLE offset);
+
+	bool IsCdPlayHandle(SCNHANDLE offset);
+
+	void TouchMem(SCNHANDLE offset);
+
+	// Called at scene startup
+	void SetCdPlaySceneDetails(const char *fileName);
+
+	// Called at game startup
+	void SetCdPlayHandle(int	fileNum);
+
+	void LoadExtraGraphData(
+		SCNHANDLE start,		// Handle of start of range
+		SCNHANDLE next);		// Handle of end of range + 1
+
+	int CdNumber(SCNHANDLE offset);
+
+	// Noir
+	SCNHANDLE FindLanguageSceneHandle(const char *fileName);
+
+#ifdef BODGE
+	bool ValidHandle(SCNHANDLE offset);
+#endif
+
+private:
+	void LoadFile(MEMHANDLE *pH); // load a memory block as a file
+	void OpenCDGraphFile();
+	void LoadCDGraphData(MEMHANDLE *pH);
+
+	// handle table gets loaded from index file at runtime
+	MEMHANDLE *_handleTable;
+
+	// number of handles in the handle table
+	uint _numHandles;
+
+	uint32 _cdPlayHandle;
+
+	SCNHANDLE _cdBaseHandle, _cdTopHandle;
+	Common::File *_cdGraphStream;
+
+	Common::Path _szCdPlayFile;
+};
+
+} // End of namespace Tinsel
+
+#endif	// TINSEL_HANDLE_H