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Diffstat (limited to 'engines/tsage/resources.h')
| -rw-r--r-- | engines/tsage/resources.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/engines/tsage/resources.h b/engines/tsage/resources.h new file mode 100644 index 0000000000..1af1bb8d2f --- /dev/null +++ b/engines/tsage/resources.h @@ -0,0 +1,176 @@ +/* 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 RING_RESOURCES_H +#define RING_RESOURCES_H + +#include "common/scummsys.h" +#include "common/file.h" +#include "common/list.h" +#include "common/str.h" +#include "common/str-array.h" +#include "common/util.h" +#include "graphics/surface.h" + +namespace tSage { + +// Magic number used by original game to identify valid memory blocks +const uint32 MEMORY_ENTRY_ID = 0xE11DA722; + +const int MEMORY_POOL_SIZE = 1000; + +enum ResourceType { RES_LIBRARY, RES_STRIP, RES_IMAGE, RES_PALETTE, RES_VISAGE, RES_SOUND, RES_MESSAGE, + RES_FONT, RES_POINTER, RES_BANK, RES_SND_DRIVER, RES_PRIORITY, RES_CONTROL, RES_WALKRGNS, + RES_BITMAP, RES_SAVE, RES_SEQUENCE }; + +#include "common/pack-start.h" // START STRUCT PACKING + +struct RGB8 { + uint8 r; + uint8 g; + uint8 b; +} PACKED_STRUCT; + +#include "common/pack-end.h" // END STRUCT PACKING + +class MemoryHeader { +public: + uint32 id; + int16 index; + int lockCtr; + int criticalCtr; + uint8 tag; + uint32 size; + + MemoryHeader() { + id = 0; + index = 0; + lockCtr = 0; + criticalCtr = 0; + tag = 0; + size = 0; + } +}; + +class SectionEntry { +public: + ResourceType resType; + uint16 resNum; + uint32 fileOffset; + + SectionEntry() { + resType = RES_LIBRARY; + resNum = 0; + fileOffset = 0; + } +}; + +class ResourceEntry { +public: + uint16 id; + bool isCompressed; + uint32 fileOffset; + uint32 size; + uint32 uncompressedSize; + + ResourceEntry() { + id = 0; + isCompressed = false; + fileOffset = 0; + size = 0; + uncompressedSize = 0; + } +}; + +typedef Common::List<ResourceEntry> ResourceList; + +class SectionList : public Common::List<SectionEntry> { +public: + uint32 fileOffset; + + SectionList() { + fileOffset = 0; + } +}; + +class MemoryManager { +private: + MemoryHeader **_memoryPool; +public: + MemoryManager(); + ~MemoryManager(); + + uint16 allocate(uint32 size); + byte *allocate2(uint32 size); + byte *lock(uint32 handle); + int indexOf(const byte *p); + void deallocate(const byte *p); + void deallocate(uint16 handle) { assert("TODO"); } + uint32 getSize(const byte *p); + void incLocks(const byte *p); +}; + +class BitReader { +private: + Common::ReadStream &_stream; + uint8 _remainder, _bitsLeft; + byte readByte() { return _stream.eos() ? 0 : _stream.readByte(); } +public: + BitReader(Common::ReadStream &s) : _stream(s) { + numBits = 9; + _remainder = 0; + _bitsLeft = 0; + } + uint16 readToken(); + + int numBits; +}; + +class RlbManager { +private: + Common::StringArray _resStrings; + MemoryManager &_memoryManager; +private: + Common::File _file; + ResourceList _resources; + SectionList _sections; + + void loadSection(uint32 fileOffset); + void loadIndex(); +public: + RlbManager(MemoryManager &memManager, const Common::String filename); + ~RlbManager(); + + byte *getResource(uint16 id, bool suppressErrors = false); + byte *getResource(ResourceType resType, uint16 resNum, uint16 rlbNum, bool suppressErrors = false); + void getPalette(int paletteNum, RGB8 *palData, uint *startNum, uint *numEntries); + byte *getSubResource(int resNum, int rlbNum, int index, uint *size); + Common::String getMessage(int resNum, int lineNum); +}; + + +} // end of namespace tSage + +#endif |