mirror of https://github.com/ZDoom/raze-gles.git
137 lines
3.1 KiB
C++
137 lines
3.1 KiB
C++
|
|
|
|
#ifndef __RESFILE_H
|
|
#define __RESFILE_H
|
|
|
|
#include <stdint.h>
|
|
#include "files.h"
|
|
#include "zstring.h"
|
|
|
|
class FResourceFile;
|
|
class FTexture;
|
|
|
|
enum ELumpFlags
|
|
{
|
|
LUMPF_MAYBEFLAT=1, // might be a flat outside F_START/END
|
|
LUMPF_ZIPFILE=2, // contains a full path
|
|
LUMPF_EMBEDDED=4, // from an embedded WAD
|
|
LUMPF_BLOODCRYPT = 8, // encrypted
|
|
LUMPF_COMPRESSED = 16, // compressed
|
|
LUMPF_SEQUENTIAL = 32, // compressed but a sequential reader can be retrieved.
|
|
};
|
|
|
|
// This holds a compresed Zip entry with all needed info to decompress it.
|
|
struct FCompressedBuffer
|
|
{
|
|
unsigned mSize;
|
|
unsigned mCompressedSize;
|
|
int mMethod;
|
|
int mZipFlags;
|
|
unsigned mCRC32;
|
|
char *mBuffer;
|
|
|
|
bool Decompress(char *destbuffer);
|
|
void Clean()
|
|
{
|
|
mSize = mCompressedSize = 0;
|
|
if (mBuffer != nullptr)
|
|
{
|
|
delete[] mBuffer;
|
|
mBuffer = nullptr;
|
|
}
|
|
}
|
|
};
|
|
|
|
struct FResourceLump
|
|
{
|
|
friend class FResourceFile;
|
|
|
|
int LumpSize;
|
|
FString FullName; // only valid for files loaded from a non-wad archive
|
|
uint8_t Flags;
|
|
int8_t RefCount;
|
|
char * Cache;
|
|
FResourceFile * Owner;
|
|
FTexture * LinkedTexture;
|
|
int Namespace;
|
|
|
|
FResourceLump()
|
|
{
|
|
Cache = NULL;
|
|
Owner = NULL;
|
|
Flags = 0;
|
|
RefCount = 0;
|
|
Namespace = 0; // ns_global
|
|
LinkedTexture = NULL;
|
|
}
|
|
|
|
virtual ~FResourceLump();
|
|
virtual FileReader NewReader();
|
|
virtual int GetFileOffset() { return -1; }
|
|
virtual int GetIndexNum() const { return 0; }
|
|
void LumpNameSetup(FString iname);
|
|
|
|
void *CacheLump();
|
|
int ReleaseCache();
|
|
|
|
protected:
|
|
virtual int FillCache() { return -1; }
|
|
|
|
};
|
|
|
|
class FResourceFile
|
|
{
|
|
public:
|
|
FileReader Reader;
|
|
FString FileName;
|
|
protected:
|
|
uint32_t NumLumps;
|
|
FString Hash;
|
|
|
|
FResourceFile(const char *filename);
|
|
FResourceFile(const char *filename, FileReader &r);
|
|
|
|
private:
|
|
uint32_t FirstLump;
|
|
|
|
public:
|
|
static FResourceFile *OpenResourceFile(const char *filename, FileReader &file, bool quiet = false, bool containeronly = false);
|
|
static FResourceFile *OpenResourceFile(const char *filename, bool quiet = false, bool containeronly = false);
|
|
virtual ~FResourceFile();
|
|
// If this FResourceFile represents a directory, the Reader object is not usable so don't return it.
|
|
FileReader *GetReader() { return Reader.isOpen()? &Reader : nullptr; }
|
|
uint32_t LumpCount() const { return NumLumps; }
|
|
uint32_t GetFirstLump() const { return FirstLump; }
|
|
void SetFirstLump(uint32_t f) { FirstLump = f; }
|
|
const FString &GetHash() const { return Hash; }
|
|
|
|
|
|
virtual bool Open(bool quiet) = 0;
|
|
virtual FResourceLump *GetLump(int no) = 0;
|
|
FResourceLump *FindLump(const char *name);
|
|
};
|
|
|
|
struct FUncompressedLump : public FResourceLump
|
|
{
|
|
int Position;
|
|
|
|
virtual FileReader *GetReader();
|
|
virtual int FillCache();
|
|
virtual int GetFileOffset() { return Position; }
|
|
|
|
};
|
|
|
|
|
|
// Base class for uncompressed resource files (WAD, GRP, PAK and single lumps)
|
|
class FUncompressedFile : public FResourceFile
|
|
{
|
|
protected:
|
|
TArray<FUncompressedLump> Lumps;
|
|
|
|
FUncompressedFile(const char *filename);
|
|
FUncompressedFile(const char *filename, FileReader &r);
|
|
virtual FResourceLump *GetLump(int no) { return ((unsigned)no < NumLumps)? &Lumps[no] : NULL; }
|
|
};
|
|
|
|
#endif
|