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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 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 TSAGE_RESOURCES_H
#define TSAGE_RESOURCES_H
#include "common/scummsys.h"
#include "common/array.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,
// Return to Ringworld specific resource types
RT17, RT18, RT19, RT20, RT21, RT22, RT23, RT24, RT25, RT26, RT27, RT28, RT29, RT30, RT31
};
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) { warning("TODO: MemoryManager::deallocate(handle)"); }
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 TLib {
private:
Common::StringArray _resStrings;
MemoryManager &_memoryManager;
private:
Common::File _file;
Common::String _filename;
ResourceList _resources;
SectionList _sections;
void loadSection(uint32 fileOffset);
void loadIndex();
public:
TLib(MemoryManager &memManager, const Common::String &filename);
~TLib();
const Common::String &getFilename() { return _filename; }
const SectionList &getSections() { return _sections; }
byte *getResource(uint16 id, bool suppressErrors = false);
byte *getResource(ResourceType resType, uint16 resNum, uint16 rlbNum, bool suppressErrors = false);
uint32 getResourceStart(ResourceType resType, uint16 resNum, uint16 rlbNum, ResourceEntry &entry);
bool getPalette(int paletteNum, byte *palData, uint *startNum, uint *numEntries);
byte *getSubResource(int resNum, int rlbNum, int index, uint *size, bool suppressErrors = false);
bool getMessage(int resNum, int lineNum, Common::String &result, bool suppressErrors = false);
};
class ResourceManager {
private:
Common::Array<TLib *> _libList;
public:
~ResourceManager();
void addLib(const Common::String &libName);
byte *getResource(uint16 id, bool suppressErrors = false);
byte *getResource(ResourceType resType, uint16 resNum, uint16 rlbNum, bool suppressErrors = false);
void getPalette(int paletteNum, byte *palData, uint *startNum, uint *numEntries, bool suppressErrors = false);
byte *getSubResource(int resNum, int rlbNum, int index, uint *size, bool suppressErrors = false);
Common::String getMessage(int resNum, int lineNum, bool suppressErrors = false);
TLib &first() { return **_libList.begin(); }
static bool scanIndex(Common::File &f, ResourceType resType, int rlbNum, int resNum, ResourceEntry &resEntry);
static void loadSection(Common::File &f, ResourceList &resources);
};
} // end of namespace TsAGE
#endif
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