2016-03-01 15:47:10 +00:00
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#ifndef __RESFILE_H
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#define __RESFILE_H
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#include "files.h"
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class FResourceFile;
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class FTexture;
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2016-09-21 23:28:05 +00:00
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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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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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2016-03-01 15:47:10 +00:00
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struct FResourceLump
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{
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friend class FResourceFile;
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int LumpSize;
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FString FullName; // only valid for files loaded from a non-wad archive
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union
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{
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char Name[9];
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2017-03-08 17:44:37 +00:00
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uint32_t dwName; // These are for accessing the first 4 or 8 chars of
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2016-03-01 15:47:10 +00:00
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QWORD qwName; // Name as a unit without breaking strict aliasing rules
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};
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2017-03-08 17:44:37 +00:00
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uint8_t Flags;
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int8_t RefCount;
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2016-03-01 15:47:10 +00:00
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char * Cache;
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FResourceFile * Owner;
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FTexture * LinkedTexture;
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int Namespace;
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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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Namespace = 0; // ns_global
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*Name = 0;
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LinkedTexture = NULL;
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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 0; }
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void LumpNameSetup(FString iname);
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void CheckEmbedded();
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2016-09-21 23:28:05 +00:00
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virtual FCompressedBuffer GetRawData();
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2016-03-01 15:47:10 +00:00
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void *CacheLump();
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int ReleaseCache();
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protected:
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virtual int FillCache() = 0;
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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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2017-03-08 17:44:37 +00:00
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uint32_t NumLumps;
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2016-03-01 15:47:10 +00:00
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FResourceFile(const char *filename, FileReader *r);
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// for archives that can contain directories
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void PostProcessArchive(void *lumps, size_t lumpsize);
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private:
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2017-03-08 17:44:37 +00:00
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uint32_t FirstLump;
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2016-03-01 15:47:10 +00:00
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2017-03-08 17:44:37 +00:00
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int FilterLumps(FString filtername, void *lumps, size_t lumpsize, uint32_t max);
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int FilterLumpsByGameType(int gametype, void *lumps, size_t lumpsize, uint32_t max);
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bool FindPrefixRange(FString 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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2016-03-01 15:47:10 +00:00
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public:
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2016-09-21 19:57:24 +00:00
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static FResourceFile *OpenResourceFile(const char *filename, FileReader *file, bool quiet = false, bool containeronly = false);
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2016-03-01 15:47:10 +00:00
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static FResourceFile *OpenDirectory(const char *filename, bool quiet = false);
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virtual ~FResourceFile();
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FileReader *GetReader() const { return Reader; }
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2017-03-08 17:44:37 +00:00
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uint32_t LumpCount() const { return NumLumps; }
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uint32_t GetFirstLump() const { return FirstLump; }
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void SetFirstLump(uint32_t f) { FirstLump = f; }
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2016-03-01 15:47:10 +00:00
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virtual void FindStrifeTeaserVoices ();
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virtual bool Open(bool quiet) = 0;
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virtual FResourceLump *GetLump(int no) = 0;
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2016-09-21 19:57:24 +00:00
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FResourceLump *FindLump(const char *name);
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2016-03-01 15:47:10 +00:00
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};
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struct FUncompressedLump : public FResourceLump
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{
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int Position;
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virtual FileReader *GetReader();
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virtual int FillCache();
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virtual int GetFileOffset() { return Position; }
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};
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// Base class for uncompressed resource files (WAD, GRP, PAK and single lumps)
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class FUncompressedFile : public FResourceFile
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{
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protected:
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FUncompressedLump * Lumps;
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FUncompressedFile(const char *filename, FileReader *r);
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virtual ~FUncompressedFile();
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virtual FResourceLump *GetLump(int no) { return ((unsigned)no < NumLumps)? &Lumps[no] : NULL; }
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public:
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};
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struct FExternalLump : public FResourceLump
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{
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const char *filename; // the actual file name. This is not necessarily the same as the lump name!
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FExternalLump(const char *_filename, int filesize = -1);
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~FExternalLump();
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virtual int FillCache();
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};
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2009-04-23 22:49:38 +00:00
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#endif
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