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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 SCI_RESOURCE_H
#define SCI_RESOURCE_H
#include "common/str.h"
#include "common/list.h"
#include "common/hashmap.h"
#include "sci/graphics/helpers.h" // for ViewType
#include "sci/decompressor.h"
#include "sci/sci.h"
#include "sci/util.h"
namespace Common {
class File;
class FSList;
class FSNode;
class WriteStream;
class SeekableReadStream;
}
namespace Sci {
enum {
#ifdef ENABLE_SCI32
// Hack to treat RESMAP.PAT/RESSCI.PAT as the highest volume
kResPatVolumeNumber = 100,
#endif
kResourceHeaderSize = 2, ///< patch type + header size
/** The maximum allowed size for a compressed or decompressed resource */
SCI_MAX_RESOURCE_SIZE = 0x0400000
};
/** Resource status types */
enum ResourceStatus {
kResStatusNoMalloc = 0,
kResStatusAllocated,
kResStatusEnqueued, /**< In the LRU queue */
kResStatusLocked /**< Allocated and in use */
};
/** Resource error codes. Should be in sync with s_errorDescriptions */
enum ResourceErrorCodes {
SCI_ERROR_NONE = 0,
SCI_ERROR_IO_ERROR = 1,
SCI_ERROR_EMPTY_RESOURCE = 2,
SCI_ERROR_RESMAP_INVALID_ENTRY = 3, /**< Invalid resource.map entry */
SCI_ERROR_RESMAP_NOT_FOUND = 4,
SCI_ERROR_NO_RESOURCE_FILES_FOUND = 5, /**< No resource at all was found */
SCI_ERROR_UNKNOWN_COMPRESSION = 6,
SCI_ERROR_DECOMPRESSION_ERROR = 7, /**< sanity checks failed during decompression */
SCI_ERROR_RESOURCE_TOO_BIG = 8 /**< Resource size exceeds SCI_MAX_RESOURCE_SIZE */
};
enum {
MAX_OPENED_VOLUMES = 5 ///< Max number of simultaneously opened volumes
};
enum ResourceType {
kResourceTypeView = 0,
kResourceTypePic,
kResourceTypeScript,
kResourceTypeText,
kResourceTypeSound,
kResourceTypeMemory,
kResourceTypeVocab,
kResourceTypeFont,
kResourceTypeCursor,
kResourceTypePatch,
kResourceTypeBitmap,
kResourceTypePalette,
kResourceTypeCdAudio = 12,
#ifdef ENABLE_SCI32
kResourceTypeWave = 12,
#endif
kResourceTypeAudio,
kResourceTypeSync,
kResourceTypeMessage,
kResourceTypeMap,
kResourceTypeHeap,
kResourceTypeAudio36,
kResourceTypeSync36,
kResourceTypeTranslation, // Currently unsupported
// SCI2.1+ Resources
kResourceTypeRobot,
kResourceTypeVMD,
kResourceTypeChunk,
kResourceTypeAnimation,
// SCI3 Resources
kResourceTypeEtc,
kResourceTypeDuck,
kResourceTypeClut,
kResourceTypeTGA,
kResourceTypeZZZ,
// Mac-only resources
kResourceTypeMacIconBarPictN, // IBIN resources (icon bar, not selected)
kResourceTypeMacIconBarPictS, // IBIS resources (icon bar, selected)
kResourceTypeMacPict, // PICT resources (inventory)
kResourceTypeRave, // KQ6 hires RAVE (special sync) resources
kResourceTypeInvalid
};
const char *getResourceTypeName(ResourceType restype);
const char *getResourceTypeExtension(ResourceType restype);
enum ResVersion {
kResVersionUnknown,
kResVersionSci0Sci1Early,
kResVersionSci1Middle,
kResVersionKQ5FMT,
kResVersionSci1Late,
kResVersionSci11,
kResVersionSci11Mac,
kResVersionSci2,
kResVersionSci3
};
class ResourceManager;
class ResourceSource;
class ResourcePatcher;
class ResourceId {
static inline ResourceType fixupType(ResourceType type) {
if (type >= kResourceTypeInvalid)
return kResourceTypeInvalid;
return type;
}
ResourceType _type;
uint16 _number;
uint32 _tuple; // Only used for audio36 and sync36
static Common::String intToBase36(uint32 number, int minChar) {
// Convert from an integer to a base36 string
Common::String string;
while (minChar--) {
int character = number % 36;
string = ((character < 10) ? (character + '0') : (character + 'A' - 10)) + string;
number /= 36;
}
return string;
}
friend void syncWithSerializer(Common::Serializer &s, ResourceId &obj);
public:
ResourceId() : _type(kResourceTypeInvalid), _number(0), _tuple(0) { }
ResourceId(ResourceType type_, uint16 number_, uint32 tuple_ = 0)
: _type(fixupType(type_)), _number(number_), _tuple(tuple_) {
}
ResourceId(ResourceType type_, uint16 number_, byte noun, byte verb, byte cond, byte seq)
: _type(fixupType(type_)), _number(number_) {
_tuple = (noun << 24) | (verb << 16) | (cond << 8) | seq;
}
Common::String toString() const {
Common::String retStr = Common::String::format("%s.%d", getResourceTypeName(_type), _number);
if (_tuple != 0) {
retStr += Common::String::format("(%d, %d, %d, %d)", _tuple >> 24, (_tuple >> 16) & 0xff, (_tuple >> 8) & 0xff, _tuple & 0xff);
}
return retStr;
}
// Convert from a resource ID to a base36 patch name
Common::String toPatchNameBase36() const {
Common::String output;
if (getSciVersion() >= SCI_VERSION_2) {
output += (getType() == kResourceTypeAudio36) ? 'A' : 'S'; // Identifier
} else {
output += (getType() == kResourceTypeAudio36) ? '@' : '#'; // Identifier
}
output += intToBase36(getNumber(), 3); // Map
output += intToBase36(getTuple() >> 24, 2); // Noun
output += intToBase36((getTuple() >> 16) & 0xff, 2); // Verb
output += '.'; // Separator
output += intToBase36((getTuple() >> 8) & 0xff, 2); // Cond
output += intToBase36(getTuple() & 0xff, 1); // Seq
assert(output.size() == 12); // We should always get 12 characters in the end
return output;
}
inline ResourceType getType() const { return _type; }
inline uint16 getNumber() const { return _number; }
inline uint32 getTuple() const { return _tuple; }
inline uint hash() const {
return ((uint)((_type << 16) | _number)) ^ _tuple;
}
bool operator==(const ResourceId &other) const {
return (_type == other._type) && (_number == other._number) && (_tuple == other._tuple);
}
bool operator!=(const ResourceId &other) const {
return !operator==(other);
}
bool operator<(const ResourceId &other) const {
return (_type < other._type) || ((_type == other._type) && (_number < other._number))
|| ((_type == other._type) && (_number == other._number) && (_tuple < other._tuple));
}
};
struct ResourceIdHash : public Common::UnaryFunction<ResourceId, uint> {
uint operator()(ResourceId val) const { return val.hash(); }
};
/** Class for storing resources in memory */
class Resource : public SciSpan<const byte> {
friend class ResourceManager;
friend class ResourcePatcher;
// FIXME: These 'friend' declarations are meant to be a temporary hack to
// ease transition to the ResourceSource class system.
friend class ResourceSource;
friend class PatchResourceSource;
friend class WaveResourceSource;
friend class AudioVolumeResourceSource;
friend class MacResourceForkResourceSource;
#ifdef ENABLE_SCI32
friend class ChunkResourceSource;
#endif
protected:
/**
* Holds the extra header data from view, pic, and palette patches so that
* these patches can be rewritten to disk as valid patch files by the
* `diskdump` debugger command.
*/
byte *_header;
uint32 _headerSize;
public:
Resource(ResourceManager *resMan, ResourceId id);
~Resource();
void unalloc();
inline ResourceType getType() const { return _id.getType(); }
inline uint16 getNumber() const { return _id.getNumber(); }
bool isLocked() const { return _status == kResStatusLocked; }
/**
* Write the resource to the specified stream.
* This method is used only by the "dump" debugger command.
*/
void writeToStream(Common::WriteStream *stream) const;
#ifdef ENABLE_SCI32
Common::SeekableReadStream *makeStream() const;
#endif
const Common::String &getResourceLocation() const;
// FIXME: This audio specific method is a hack. After all, why should a
// Resource have audio specific methods? But for now we keep this, as it
// eases transition.
uint32 getAudioCompressionType() const;
uint16 getNumLockers() const { return _lockers; }
protected:
ResourceId _id; // TODO: _id could almost be made const, only readResourceInfo() modifies it...
int32 _fileOffset; /**< Offset in file */
ResourceStatus _status;
uint16 _lockers; /**< Number of places where this resource was locked */
ResourceSource *_source;
ResourceManager *_resMan;
bool loadPatch(Common::SeekableReadStream *file);
bool loadFromPatchFile();
bool loadFromWaveFile(Common::SeekableReadStream *file);
bool loadFromAudioVolumeSCI1(Common::SeekableReadStream *file);
bool loadFromAudioVolumeSCI11(Common::SeekableReadStream *file);
int decompress(ResVersion volVersion, Common::SeekableReadStream *file);
int readResourceInfo(ResVersion volVersion, Common::SeekableReadStream *file, uint32 &szPacked, ResourceCompression &compression);
};
typedef Common::HashMap<ResourceId, Resource *, ResourceIdHash> ResourceMap;
class IntMapResourceSource;
class ResourceManager {
// FIXME: These 'friend' declarations are meant to be a temporary hack to
// ease transition to the ResourceSource class system.
friend class ResourceSource;
friend class DirectoryResourceSource;
friend class PatchResourceSource;
friend class ExtMapResourceSource;
friend class IntMapResourceSource;
friend class AudioVolumeResourceSource;
friend class ExtAudioMapResourceSource;
friend class WaveResourceSource;
friend class MacResourceForkResourceSource;
friend class ResourcePatcher;
#ifdef ENABLE_SCI32
friend class ChunkResourceSource;
#endif
public:
/**
* Creates a new SCI resource manager.
*/
ResourceManager(const bool detectionMode = false);
~ResourceManager();
/**
* Initializes the resource manager.
*/
void init();
/**
* Adds all of the resource files for a game
*/
int addAppropriateSources();
/**
* Similar to the function above, only called from the fallback detector
*/
int addAppropriateSourcesForDetection(const Common::FSList &fslist); // TODO: Switch from FSList to Common::Archive?
/**
* Looks up a resource's data.
* @param id The resource type to look for
* @param lock non-zero iff the resource should be locked
* @return The resource, or NULL if it doesn't exist
* @note Locked resources are guaranteed not to have their contents freed until
* they are unlocked explicitly (by unlockResource).
*/
Resource *findResource(ResourceId id, bool lock);
/**
* Unlocks a previously locked resource.
* @param res The resource to free
*/
void unlockResource(Resource *res);
/**
* Tests whether a resource exists.
*
* This function may often be much faster than finding the resource
* and should be preferred for simple tests.
* The resource object returned is, indeed, the resource in question, but
* it should be used with care, as it may be unallocated.
* Use scir_find_resource() if you want to use the data contained in the resource.
*
* @param id Id of the resource to check
* @return non-NULL if the resource exists, NULL otherwise
*/
Resource *testResource(ResourceId id);
/**
* Returns a list of all resources of the specified type.
* @param type The resource type to look for
* @param mapNumber For audio36 and sync36, limit search to this map
* @return The resource list
*/
Common::List<ResourceId> listResources(ResourceType type, int mapNumber = -1);
/**
* Returns if there are any resources of the specified type.
*/
bool hasResourceType(ResourceType type);
void setAudioLanguage(int language);
int getAudioLanguage() const;
void changeAudioDirectory(Common::String path);
void changeMacAudioDirectory(Common::String path);
bool isGMTrackIncluded();
bool isSci11Mac() const { return _volVersion == kResVersionSci11Mac; }
ViewType getViewType() const { return _viewType; }
const char *getMapVersionDesc() const { return versionDescription(_mapVersion); }
const char *getVolVersionDesc() const { return versionDescription(_volVersion); }
ResVersion getVolVersion() const { return _volVersion; }
/**
* Adds the appropriate GM patch from the Sierra MIDI utility as 4.pat, without
* requiring the user to rename the file to 4.pat. Thus, the original Sierra
* archive can be extracted in the extras directory, and the GM patches can be
* applied per game, if applicable.
*/
void addNewGMPatch(SciGameId gameId);
void addNewD110Patch(SciGameId gameId);
#ifdef ENABLE_SCI32
/**
* Parses all resources from a SCI2.1 chunk resource and adds them to the
* resource manager.
*/
void addResourcesFromChunk(uint16 id);
/**
* Updates the currently active disc number.
*/
void findDisc(const int16 discNo);
/**
* Gets the currently active disc number.
*/
int16 getCurrentDiscNo() const { return _currentDiscNo; }
private:
/**
* The currently active disc number.
*/
int16 _currentDiscNo;
/**
* If true, the game has multiple audio volumes that contain different
* audio files for each disc.
*/
bool _multiDiscAudio;
public:
#endif
// Detects, if standard font of current game includes extended characters (>0x80)
bool detectFontExtended();
// Detects, if SCI1.1 game uses palette merging
bool detectPaletteMergingSci11();
// Detects, if SCI0EARLY game also has SCI0EARLY sound resources
bool detectEarlySound();
/**
* Finds the internal Sierra ID of the current game from script 0.
*/
Common::String findSierraGameId(const bool isBE);
/**
* Finds the location of the game object from script 0.
* @param addSci11ScriptOffset Adjust the return value for SCI1.1 and newer
* games. Needs to be false when the heap is accessed directly inside
* findSierraGameId().
*/
reg_t findGameObject(const bool addSci11ScriptOffset, const bool isBE);
/**
* Converts a map resource type to our type
* @param sciType The type from the map/patch
* @return The ResourceType
*/
ResourceType convertResType(byte type);
protected:
bool _detectionMode;
// Maximum number of bytes to allow being allocated for resources
// Note: maxMemory will not be interpreted as a hard limit, only as a restriction
// for resources which are not explicitly locked. However, a warning will be
// issued whenever this limit is exceeded.
int _maxMemoryLRU;
ViewType _viewType; // Used to determine if the game has EGA or VGA graphics
typedef Common::List<ResourceSource *> SourcesList;
SourcesList _sources;
int _memoryLocked; ///< Amount of resource bytes in locked memory
int _memoryLRU; ///< Amount of resource bytes under LRU control
Common::List<Resource *> _LRU; ///< Last Resource Used list
ResourceMap _resMap;
Common::List<Common::File *> _volumeFiles; ///< list of opened volume files
ResourceSource *_audioMapSCI1; ///< Currently loaded audio map for SCI1
ResVersion _volVersion; ///< resource.0xx version
ResVersion _mapVersion; ///< resource.map version
bool _isSci2Mac;
/**
* Add a path to the resource manager's list of sources.
* @return a pointer to the added source structure, or NULL if an error occurred.
*/
ResourceSource *addPatchDir(const Common::String &path);
ResourceSource *findVolume(ResourceSource *map, int volume_nr);
/**
* Adds a source to the resource manager's list of sources.
* @param source The new source to add
* @return A pointer to the added source structure, or NULL if an error occurred.
*/
ResourceSource *addSource(ResourceSource *source);
/**
* Add an external (i.e., separate file) map resource to the resource
* manager's list of sources.
* @param filename The name of the volume to add
* @param volume_nr The volume number the map starts at, 0 for <SCI2.1
* @return A pointer to the added source structure, or NULL if an error occurred.
*/
ResourceSource *addExternalMap(const Common::String &filename, int volume_nr = 0);
ResourceSource *addExternalMap(const Common::FSNode *mapFile, int volume_nr = 0);
/**
* Scans newly registered resource sources for resources, earliest addition first.
* @param detected_version Pointer to the detected version number,
* used during startup. May be NULL.
* @return One of SCI_ERROR_*.
*/
void scanNewSources();
bool addAudioSources();
void addScriptChunkSources();
void freeResourceSources();
/**
* Returns a string describing a ResVersion.
* @param version The resource version
* @return The description of version
*/
const char *versionDescription(ResVersion version) const;
/**
* All calls to getVolumeFile must be followed with a corresponding
* call to disposeVolumeFileStream once the stream is finished being used.
* Do NOT call delete directly on returned streams, as they may be cached.
*/
Common::SeekableReadStream *getVolumeFile(ResourceSource *source);
void disposeVolumeFileStream(Common::SeekableReadStream *fileStream, ResourceSource *source);
void loadResource(Resource *res);
void freeOldResources();
bool validateResource(const ResourceId &resourceId, const Common::String &sourceMapLocation, const Common::String &sourceName, const uint32 offset, const uint32 size, const uint32 sourceSize) const;
Resource *addResource(ResourceId resId, ResourceSource *src, uint32 offset, uint32 size = 0, const Common::String &sourceMapLocation = Common::String("(no map location)"));
Resource *updateResource(ResourceId resId, ResourceSource *src, uint32 size, const Common::String &sourceMapLocation = Common::String("(no map location)"));
Resource *updateResource(ResourceId resId, ResourceSource *src, uint32 offset, uint32 size, const Common::String &sourceMapLocation = Common::String("(no map location)"));
void removeAudioResource(ResourceId resId);
/**--- Resource map decoding functions ---*/
ResVersion detectMapVersion();
ResVersion detectVolVersion();
#ifdef ENABLE_SCI32
bool detectSci2Mac();
#endif
/**
* Reads the SCI0 resource.map file from a local directory.
* @param map The map
* @return 0 on success, an SCI_ERROR_* code otherwise
*/
int readResourceMapSCI0(ResourceSource *map);
/**
* Reads the SCI1 resource.map file from a local directory.
* @param map The map
* @return 0 on success, an SCI_ERROR_* code otherwise
*/
int readResourceMapSCI1(ResourceSource *map);
/**
* Reads SCI1.1 audio map resources.
* @param map The map
* @return 0 on success, an SCI_ERROR_* code otherwise
*/
int readAudioMapSCI11(IntMapResourceSource *map);
/**
* Reads SCI1 audio map files.
* @param map The map
* @param unload Unload the map instead of loading it
* @return 0 on success, an SCI_ERROR_* code otherwise
*/
int readAudioMapSCI1(ResourceSource *map, bool unload = false);
/**--- Patch management functions ---*/
/**
* Reads patch files from a local directory.
*/
void readResourcePatches();
void readResourcePatchesBase36();
/**
* Determines whether or not a patch file matching the given resource ID
* should be ignored when processing patches.
*/
bool isBlacklistedPatch(const ResourceId &resId) const;
void processPatch(ResourceSource *source, ResourceType resourceType, uint16 resourceNr, uint32 tuple = 0);
/**
* Process wave files as patches for Audio resources.
*/
void readWaveAudioPatches();
void processWavePatch(ResourceId resourceId, const Common::String &name);
/**
* Applies to all versions before 0.000.395 (i.e. KQ4 old, XMAS 1988 and LSL2).
* Old SCI versions used two word header for script blocks (first word equal
* to 0x82, meaning of the second one unknown). New SCI versions used one
* word header.
* Also, old SCI versions assign 120 degrees to left & right, and 60 to up
* and down. Later versions use an even 90 degree distribution.
*/
bool hasOldScriptHeader();
void printLRU();
void addToLRU(Resource *res);
void removeFromLRU(Resource *res);
ResourceCompression getViewCompression();
ViewType detectViewType();
bool hasSci0Voc999();
bool hasSci1Voc900();
bool checkResourceDataForSignature(Resource *resource, const byte *signature);
bool checkResourceForSignatures(ResourceType resourceType, uint16 resourceNr, const byte *signature1, const byte *signature2);
void detectSciVersion();
private:
// For better or worse, because the patcher is added as a ResourceSource,
// its destruction is managed by freeResourceSources.
ResourcePatcher *_patcher;
bool _hasBadResources;
};
class SoundResource {
public:
struct Channel {
byte number;
byte flags;
byte poly;
uint16 prio;
SciSpan<const byte> data;
uint16 curPos;
long time;
byte prev;
Channel() :
number(0),
flags(0),
poly(0),
prio(0),
data(),
curPos(0) {
time = 0;
prev = 0;
}
};
struct Track {
byte type;
byte channelCount;
SciSpan<const byte> header;
Channel *channels;
int16 digitalChannelNr;
uint16 digitalSampleRate;
uint16 digitalSampleSize;
uint16 digitalSampleStart;
uint16 digitalSampleEnd;
};
public:
SoundResource(uint32 resNumber, ResourceManager *resMan, SciVersion soundVersion);
~SoundResource();
#if 0
Track *getTrackByNumber(uint16 number);
#endif
Track *getTrackByType(byte type);
Track *getDigitalTrack();
int getChannelFilterMask(int hardwareMask, bool wantsRhythm);
byte getInitialVoiceCount(byte channel);
byte getSoundPriority() const { return _soundPriority; }
bool exists() const { return _resource != nullptr; }
private:
SciVersion _soundVersion;
int _trackCount;
Track *_tracks;
Resource *_resource;
ResourceManager *_resMan;
byte _soundPriority;
};
ResourceId convertPatchNameBase36(ResourceType type, const Common::String &filename);
} // End of namespace Sci
#endif // SCI_RESOURCE_H
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