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https://github.com/ZDoom/Raze.git
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82057bcd5a
This compiles but doesn't run.
203 lines
6.1 KiB
C++
203 lines
6.1 KiB
C++
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#ifndef __RESFILE_H
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#define __RESFILE_H
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#include <limits.h>
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#include <vector>
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#include <string>
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#include "fs_files.h"
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namespace FileSys {
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class StringPool;
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std::string ExtractBaseName(const char* path, bool include_extension = false);
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void strReplace(std::string& str, const char* from, const char* to);
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// user context in which the file system gets opened. This also contains a few callbacks to avoid direct dependencies on the engine.
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struct LumpFilterInfo
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{
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std::vector<std::string> gameTypeFilter; // this can contain multiple entries
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std::string dotFilter;
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// The following are for checking if the root directory of a zip can be removed.
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std::vector<std::string> reservedFolders;
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std::vector<std::string> requiredPrefixes;
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std::vector<std::string> embeddings;
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std::vector<std::string> blockednames; // File names that will never be accepted (e.g. dehacked.exe for Doom)
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std::function<bool(const char*, const char*)> filenamecheck; // for scanning directories, this allows to eliminate unwanted content.
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std::function<void()> postprocessFunc;
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};
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enum class FSMessageLevel
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{
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Error = 1,
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Warning = 2,
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Attention = 3,
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Message = 4,
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DebugWarn = 5,
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DebugNotify = 6,
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};
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// pass the text output function as parameter to avoid a hard dependency on higher level code.
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using FileSystemMessageFunc = int(*)(FSMessageLevel msglevel, const char* format, ...);
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class FResourceFile;
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// [RH] Namespaces from BOOM.
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// These are needed here in the low level part so that WAD files can be properly set up.
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typedef enum {
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ns_hidden = -1,
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ns_global = 0,
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ns_sprites,
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ns_flats,
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ns_colormaps,
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ns_acslibrary,
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ns_newtextures,
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ns_bloodraw, // no longer used - kept for ZScript.
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ns_bloodsfx, // no longer used - kept for ZScript.
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ns_bloodmisc, // no longer used - kept for ZScript.
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ns_strifevoices,
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ns_hires,
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ns_voxels,
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// These namespaces are only used to mark lumps in special subdirectories
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// so that their contents doesn't interfere with the global namespace.
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// searching for data in these namespaces works differently for lumps coming
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// from Zips or other files.
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ns_specialzipdirectory,
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ns_sounds,
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ns_patches,
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ns_graphics,
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ns_music,
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ns_firstskin,
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} namespace_t;
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enum ELumpFlags
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{
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LUMPF_MAYBEFLAT = 1, // might be a flat outside F_START/END
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LUMPF_FULLPATH = 2, // contains a full path. This will trigger extended namespace checks when looking up short names.
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LUMPF_EMBEDDED = 4, // marks an embedded resource file for later processing.
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LUMPF_SHORTNAME = 8, // the stored name is a short extension-less name
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LUMPF_COMPRESSED = 16, // compressed or encrypted, i.e. cannot be read with the container file's reader.
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};
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// This holds a compresed Zip entry with all needed info to decompress it.
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struct FCompressedBuffer
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{
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unsigned mSize;
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unsigned mCompressedSize;
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int mMethod;
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int mZipFlags;
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unsigned mCRC32;
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char *mBuffer;
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const char* filename;
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bool Decompress(char *destbuffer);
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void Clean()
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{
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mSize = mCompressedSize = 0;
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if (mBuffer != nullptr)
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{
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delete[] mBuffer;
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mBuffer = nullptr;
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}
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}
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};
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struct FResourceLump
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{
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friend class FResourceFile;
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friend class FWadFile; // this still needs direct access.
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int LumpSize;
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int RefCount;
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protected:
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const char* FullName;
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public:
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uint8_t Flags;
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char * Cache;
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FResourceFile * Owner;
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FResourceLump()
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{
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Cache = NULL;
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Owner = NULL;
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Flags = 0;
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RefCount = 0;
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FullName = "";
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}
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virtual ~FResourceLump();
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virtual FileReader *GetReader();
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virtual FileReader NewReader();
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virtual int GetFileOffset() { return -1; }
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virtual int GetIndexNum() const { return -1; }
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virtual int GetNamespace() const { return 0; }
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void LumpNameSetup(const char* iname, StringPool* allocator);
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void CheckEmbedded(LumpFilterInfo* lfi);
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virtual FCompressedBuffer GetRawData();
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void *Lock(); // validates the cache and increases the refcount.
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int Unlock(); // decreases the refcount and frees the buffer
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unsigned Size() const{ return LumpSize; }
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int LockCount() const { return RefCount; }
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const char* getName() { return FullName; }
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void clearName() { FullName = ""; }
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protected:
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virtual int FillCache() { return -1; }
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};
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class FResourceFile
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{
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public:
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FileReader Reader;
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const char* FileName;
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protected:
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uint32_t NumLumps;
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char Hash[48];
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StringPool* stringpool;
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FResourceFile(const char *filename, StringPool* sp);
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FResourceFile(const char *filename, FileReader &r, StringPool* sp);
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// for archives that can contain directories
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void GenerateHash();
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void PostProcessArchive(void *lumps, size_t lumpsize, LumpFilterInfo *filter);
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private:
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uint32_t FirstLump;
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int FilterLumps(const std::string& filtername, void *lumps, size_t lumpsize, uint32_t max);
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int FilterLumpsByGameType(LumpFilterInfo *filter, void *lumps, size_t lumpsize, uint32_t max);
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bool FindPrefixRange(const char* filter, void *lumps, size_t lumpsize, uint32_t max, uint32_t &start, uint32_t &end);
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void JunkLeftoverFilters(void *lumps, size_t lumpsize, uint32_t max);
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static FResourceFile *DoOpenResourceFile(const char *filename, FileReader &file, bool containeronly, LumpFilterInfo* filter, FileSystemMessageFunc Printf, StringPool* sp);
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public:
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static FResourceFile *OpenResourceFile(const char *filename, FileReader &file, bool containeronly = false, LumpFilterInfo* filter = nullptr, FileSystemMessageFunc Printf = nullptr, StringPool* sp = nullptr);
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static FResourceFile *OpenResourceFile(const char *filename, bool containeronly = false, LumpFilterInfo* filter = nullptr, FileSystemMessageFunc Printf = nullptr, StringPool* sp = nullptr);
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static FResourceFile *OpenDirectory(const char *filename, LumpFilterInfo* filter = nullptr, FileSystemMessageFunc Printf = nullptr, StringPool* sp = nullptr);
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virtual ~FResourceFile();
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// If this FResourceFile represents a directory, the Reader object is not usable so don't return it.
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FileReader *GetReader() { return Reader.isOpen()? &Reader : nullptr; }
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uint32_t LumpCount() const { return NumLumps; }
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uint32_t GetFirstEntry() const { return FirstLump; }
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void SetFirstLump(uint32_t f) { FirstLump = f; }
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const char* GetHash() const { return Hash; }
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virtual FResourceLump *GetLump(int no) = 0;
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FResourceLump *FindLump(const char *name);
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};
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}
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#endif
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