mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-18 10:11:50 +00:00
597 lines
17 KiB
C++
597 lines
17 KiB
C++
/*
|
|
** resourcefile.cpp
|
|
**
|
|
** Base classes for resource file management
|
|
**
|
|
**---------------------------------------------------------------------------
|
|
** Copyright 2009 Christoph Oelckers
|
|
** All rights reserved.
|
|
**
|
|
** Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions
|
|
** are met:
|
|
**
|
|
** 1. Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** 2. Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in the
|
|
** documentation and/or other materials provided with the distribution.
|
|
** 3. The name of the author may not be used to endorse or promote products
|
|
** derived from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
**---------------------------------------------------------------------------
|
|
**
|
|
**
|
|
*/
|
|
|
|
#include <zlib.h>
|
|
#include "resourcefile.h"
|
|
#include "name.h"
|
|
#include "m_swap.h"
|
|
#include "gamecontrol.h"
|
|
|
|
//==========================================================================
|
|
//
|
|
// File reader that reads from a lump's cache
|
|
//
|
|
//==========================================================================
|
|
|
|
class FLumpReader : public MemoryReader
|
|
{
|
|
FResourceLump *source;
|
|
|
|
public:
|
|
FLumpReader(FResourceLump *src)
|
|
: MemoryReader(NULL, src->LumpSize), source(src)
|
|
{
|
|
bufptr = (const char*)src->Lock();
|
|
src->Cache.Data();
|
|
}
|
|
|
|
~FLumpReader()
|
|
{
|
|
source->Unlock(true);
|
|
}
|
|
};
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// Base class for resource lumps
|
|
//
|
|
//==========================================================================
|
|
|
|
FResourceLump::~FResourceLump()
|
|
{
|
|
Owner = NULL;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// Sets up the file name information
|
|
// This is stored as FNames for various formats.
|
|
//
|
|
//==========================================================================
|
|
|
|
void FResourceLump::LumpNameSetup(FString iname)
|
|
{
|
|
auto pathLen = iname.LastIndexOf('/') + 1;
|
|
LumpName[FullNameType] = iname.GetChars();
|
|
LumpName[BaseNameType] = iname.GetChars() + pathLen;
|
|
|
|
auto extStart = iname.LastIndexOf('.');
|
|
if (extStart <= pathLen) extStart = -1;
|
|
if (extStart > 0)
|
|
{
|
|
LumpName[ExtensionType] = iname.GetChars() + extStart + 1;
|
|
iname.Truncate(extStart);
|
|
}
|
|
LumpName[FullNameNoExtType] = iname.GetChars();
|
|
LumpName[BaseNameNoExtType] = iname.GetChars() + pathLen;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// this is just for completeness. For non-Zips only an uncompressed lump can
|
|
// be returned.
|
|
//
|
|
//==========================================================================
|
|
|
|
FCompressedBuffer FResourceLump::GetRawData()
|
|
{
|
|
FCompressedBuffer cbuf = { (unsigned)LumpSize, (unsigned)LumpSize, METHOD_STORED, 0, 0, new char[LumpSize] };
|
|
memcpy(cbuf.mBuffer, Lock(), LumpSize);
|
|
cbuf.mCRC32 = crc32(0, (uint8_t*)cbuf.mBuffer, LumpSize);
|
|
Unlock(true);
|
|
return cbuf;
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// Returns the owner's FileReader if it can be used to access this lump
|
|
//
|
|
//==========================================================================
|
|
|
|
FileReader *FResourceLump::GetReader()
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Returns a file reader to the lump's cache
|
|
//
|
|
//==========================================================================
|
|
|
|
FileReader FResourceLump::NewReader()
|
|
{
|
|
return FileReader(new FLumpReader(this));
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Caches a lump's content and increases the reference counter
|
|
//
|
|
//==========================================================================
|
|
|
|
void *FResourceLump::Lock()
|
|
{
|
|
if (Cache.Size())
|
|
{
|
|
if (RefCount > 0) RefCount++;
|
|
}
|
|
else if (LumpSize > 0)
|
|
{
|
|
ValidateCache();
|
|
// NBlood has some endian conversion right in here which is extremely dangerous and needs to be handled differently.
|
|
// Fortunately Big Endian platforms are mostly irrelevant so this is something to be sorted out later (if ever)
|
|
RefCount++;
|
|
}
|
|
return Cache.Data();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Caches a lump's content without increasing the reference counter
|
|
//
|
|
//==========================================================================
|
|
|
|
void *FResourceLump::Get()
|
|
{
|
|
if (Cache.Size() == 0)
|
|
{
|
|
ValidateCache();
|
|
}
|
|
return Cache.Data();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Decrements reference counter and frees lump if counter reaches 0
|
|
//
|
|
//==========================================================================
|
|
|
|
void FResourceLump::Unlock(bool mayfree)
|
|
{
|
|
if (LumpSize > 0 && RefCount > 0)
|
|
{
|
|
if (--RefCount == 0)
|
|
{
|
|
if (mayfree) Cache.Reset();
|
|
}
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Opens a resource file
|
|
//
|
|
//==========================================================================
|
|
|
|
typedef FResourceFile * (*CheckFunc)(const char *filename, FileReader &file, bool quiet);
|
|
|
|
FResourceFile *CheckWad(const char *filename, FileReader &file, bool quiet);
|
|
FResourceFile *CheckGRP(const char *filename, FileReader &file, bool quiet);
|
|
FResourceFile *CheckRFF(const char *filename, FileReader &file, bool quiet);
|
|
FResourceFile *CheckPak(const char *filename, FileReader &file, bool quiet);
|
|
FResourceFile *CheckZip(const char *filename, FileReader &file, bool quiet);
|
|
FResourceFile *Check7Z(const char *filename, FileReader &file, bool quiet);
|
|
FResourceFile *CheckLump(const char *filename,FileReader &file, bool quiet);
|
|
FResourceFile *CheckDir(const char *filename, bool quiet, bool nosubdirflag);
|
|
|
|
static CheckFunc funcs[] = { CheckGRP, CheckRFF, CheckZip, Check7Z, CheckPak, CheckLump };
|
|
|
|
FResourceFile *FResourceFile::DoOpenResourceFile(const char *filename, FileReader &file, bool quiet, bool containeronly)
|
|
{
|
|
for(size_t i = 0; i < countof(funcs) - containeronly; i++)
|
|
{
|
|
FResourceFile *resfile = funcs[i](filename, file, quiet);
|
|
if (resfile != NULL) return resfile;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
FResourceFile *FResourceFile::OpenResourceFile(const char *filename, FileReader &file, bool quiet, bool containeronly)
|
|
{
|
|
return DoOpenResourceFile(filename, file, quiet, containeronly);
|
|
}
|
|
|
|
|
|
FResourceFile *FResourceFile::OpenResourceFile(const char *filename, bool quiet, bool containeronly)
|
|
{
|
|
FileReader file;
|
|
if (!file.OpenFile(filename)) return nullptr;
|
|
return DoOpenResourceFile(filename, file, quiet, containeronly);
|
|
}
|
|
|
|
/*
|
|
FResourceFile *FResourceFile::OpenResourceFileFromLump(int lumpnum, bool quiet, bool containeronly)
|
|
{
|
|
FileReader file = Wads.ReopenLumpReader(lumpnum);
|
|
return DoOpenResourceFile("internal", file, quiet, containeronly);
|
|
}
|
|
*/
|
|
|
|
FResourceFile *FResourceFile::OpenDirectory(const char *filename, bool quiet, bool nosubdirflag)
|
|
{
|
|
return CheckDir(filename, quiet, nosubdirflag);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Resource file base class
|
|
//
|
|
//==========================================================================
|
|
|
|
FResourceFile::FResourceFile(const char *filename)
|
|
: FileName(filename)
|
|
{
|
|
}
|
|
|
|
FResourceFile::FResourceFile(const char *filename, FileReader &r)
|
|
: FResourceFile(filename)
|
|
{
|
|
Reader = std::move(r);
|
|
}
|
|
|
|
FResourceFile::~FResourceFile()
|
|
{
|
|
}
|
|
|
|
int lumpcmp(const void * a, const void * b)
|
|
{
|
|
FResourceLump * rec1 = (FResourceLump *)a;
|
|
FResourceLump * rec2 = (FResourceLump *)b;
|
|
return stricmp(rec1->LumpName[FResourceLump::FullNameType].GetChars(), rec2->LumpName[FResourceLump::FullNameType].GetChars());
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// FResourceFile :: PostProcessArchive
|
|
//
|
|
// Sorts files by name.
|
|
// For files named "filter/<game>/*": Using the same filter rules as config
|
|
// autoloading, move them to the end and rename them without the "filter/"
|
|
// prefix. Filtered files that don't match are deleted.
|
|
//
|
|
//==========================================================================
|
|
|
|
void FResourceFile::PostProcessArchive(void *lumps, size_t lumpsize)
|
|
{
|
|
// Entries in archives are sorted alphabetically
|
|
qsort(lumps, NumLumps, lumpsize, lumpcmp);
|
|
|
|
|
|
// Filter out lumps using the same names as the Autoload.* sections
|
|
// in the ini file use. We reduce the maximum lump concidered after
|
|
// each one so that we don't risk refiltering already filtered lumps.
|
|
uint32_t max = NumLumps;
|
|
|
|
long len;
|
|
int lastpos = -1;
|
|
FString file;
|
|
|
|
if (LumpFilter.IndexOf('.') < 0)
|
|
{
|
|
max -= FilterLumps(LumpFilter, lumps, lumpsize, max);
|
|
}
|
|
else while ((len = LumpFilter.IndexOf('.', lastpos+1)) > 0)
|
|
{
|
|
max -= FilterLumps(LumpFilter.Left(len), lumps, lumpsize, max);
|
|
lastpos = len;
|
|
}
|
|
JunkLeftoverFilters(lumps, lumpsize, max);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// FResourceFile :: FilterLumps
|
|
//
|
|
// Finds any lumps between [0,<max>) that match the pattern
|
|
// "filter/<filtername>/*" and moves them to the end of the lump list.
|
|
// Returns the number of lumps moved.
|
|
//
|
|
//==========================================================================
|
|
|
|
int FResourceFile::FilterLumps(FString filtername, void *lumps, size_t lumpsize, uint32_t max)
|
|
{
|
|
FString filter;
|
|
uint32_t start, end;
|
|
|
|
if (filtername.IsEmpty())
|
|
{
|
|
return 0;
|
|
}
|
|
filter << "filter/" << filtername << '/';
|
|
|
|
bool found = FindPrefixRange(filter, lumps, lumpsize, max, start, end);
|
|
|
|
// Workaround for old Doom filter names.
|
|
if (!found && filtername.IndexOf("doom.id.doom") == 0)
|
|
{
|
|
filter.Substitute("doom.id.doom", "doom.doom");
|
|
found = FindPrefixRange(filter, lumps, lumpsize, max, start, end);
|
|
}
|
|
|
|
if (found)
|
|
{
|
|
void *from = (uint8_t *)lumps + start * lumpsize;
|
|
|
|
// Remove filter prefix from every name
|
|
void *lump_p = from;
|
|
for (uint32_t i = start; i < end; ++i, lump_p = (uint8_t *)lump_p + lumpsize)
|
|
{
|
|
FResourceLump *lump = (FResourceLump *)lump_p;
|
|
assert(filter.CompareNoCase(lump->FullName(), (int)filter.Len()) == 0);
|
|
lump->LumpNameSetup(lump->FullName() + filter.Len());
|
|
}
|
|
|
|
// Move filtered lumps to the end of the lump list.
|
|
size_t count = (end - start) * lumpsize;
|
|
void *to = (uint8_t *)lumps + NumLumps * lumpsize - count;
|
|
assert (to >= from);
|
|
|
|
if (from != to)
|
|
{
|
|
// Copy filtered lumps to a temporary buffer.
|
|
uint8_t *filteredlumps = new uint8_t[count];
|
|
memcpy(filteredlumps, from, count);
|
|
|
|
// Shift lumps left to make room for the filtered ones at the end.
|
|
memmove(from, (uint8_t *)from + count, (NumLumps - end) * lumpsize);
|
|
|
|
// Copy temporary buffer to newly freed space.
|
|
memcpy(to, filteredlumps, count);
|
|
|
|
delete[] filteredlumps;
|
|
}
|
|
}
|
|
return end - start;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// FResourceFile :: JunkLeftoverFilters
|
|
//
|
|
// Deletes any lumps beginning with "filter/" that were not matched.
|
|
//
|
|
//==========================================================================
|
|
|
|
void FResourceFile::JunkLeftoverFilters(void *lumps, size_t lumpsize, uint32_t max)
|
|
{
|
|
uint32_t start, end;
|
|
if (FindPrefixRange("filter/", lumps, lumpsize, max, start, end))
|
|
{
|
|
// Since the resource lumps may contain non-POD data besides the
|
|
// full name, we "delete" them by erasing their names so they
|
|
// can't be found.
|
|
void *stop = (uint8_t *)lumps + end * lumpsize;
|
|
for (void *p = (uint8_t *)lumps + start * lumpsize; p < stop; p = (uint8_t *)p + lumpsize)
|
|
{
|
|
FResourceLump *lump = (FResourceLump *)p;
|
|
for (auto &ln : lump->LumpName)
|
|
ln = NAME_None;
|
|
}
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// FResourceFile :: FindPrefixRange
|
|
//
|
|
// Finds a range of lumps that start with the prefix string. <start> is left
|
|
// indicating the first matching one. <end> is left at one plus the last
|
|
// matching one.
|
|
//
|
|
//==========================================================================
|
|
|
|
bool FResourceFile::FindPrefixRange(FString filter, void *lumps, size_t lumpsize, uint32_t maxlump, uint32_t &start, uint32_t &end)
|
|
{
|
|
uint32_t min, max, mid, inside;
|
|
FResourceLump *lump;
|
|
int cmp;
|
|
|
|
end = start = 0;
|
|
|
|
// Pretend that our range starts at 1 instead of 0 so that we can avoid
|
|
// unsigned overflow if the range starts at the first lump.
|
|
lumps = (uint8_t *)lumps - lumpsize;
|
|
|
|
// Binary search to find any match at all.
|
|
min = 1, max = maxlump;
|
|
while (min <= max)
|
|
{
|
|
mid = min + (max - min) / 2;
|
|
lump = (FResourceLump *)((uint8_t *)lumps + mid * lumpsize);
|
|
cmp = filter.CompareNoCase(lump->FullName(), (int)filter.Len());
|
|
|
|
if (cmp == 0)
|
|
break;
|
|
else if (cmp > 0)
|
|
min = mid + 1;
|
|
else
|
|
max = mid - 1;
|
|
}
|
|
if (max < min)
|
|
{ // matched nothing
|
|
return false;
|
|
}
|
|
|
|
// Binary search to find first match.
|
|
inside = mid;
|
|
min = 1, max = mid;
|
|
while (min <= max)
|
|
{
|
|
mid = min + (max - min) / 2;
|
|
lump = (FResourceLump *)((uint8_t *)lumps + mid * lumpsize);
|
|
cmp = filter.CompareNoCase(lump->FullName(), (int)filter.Len());
|
|
// Go left on matches and right on misses.
|
|
if (cmp == 0)
|
|
max = mid - 1;
|
|
else
|
|
min = mid + 1;
|
|
}
|
|
start = mid + (cmp != 0) - 1;
|
|
|
|
// Binary search to find last match.
|
|
min = inside, max = maxlump;
|
|
while (min <= max)
|
|
{
|
|
mid = min + (max - min) / 2;
|
|
lump = (FResourceLump *)((uint8_t *)lumps + mid * lumpsize);
|
|
cmp = filter.CompareNoCase(lump->FullName(), (int)filter.Len());
|
|
// Go right on matches and left on misses.
|
|
if (cmp == 0)
|
|
min = mid + 1;
|
|
else
|
|
max = mid - 1;
|
|
}
|
|
end = mid - (cmp != 0);
|
|
return true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Finds a lump by a given name. Used for savegames
|
|
//
|
|
//==========================================================================
|
|
|
|
FResourceLump *FResourceFile::FindLump(const char *name)
|
|
{
|
|
FName lname(name, true);
|
|
if (lname == NAME_None) return nullptr;
|
|
for (unsigned i = 0; i < NumLumps; i++)
|
|
{
|
|
FResourceLump *lump = GetLump(i);
|
|
if (lump->LumpName[FResourceLump::FullNameType] == lname)
|
|
{
|
|
return lump;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Caches a lump's content and increases the reference counter
|
|
//
|
|
//==========================================================================
|
|
|
|
FileReader *FUncompressedLump::GetReader()
|
|
{
|
|
Owner->Reader.Seek(Position, FileReader::SeekSet);
|
|
return &Owner->Reader;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Caches a lump's content and increases the reference counter
|
|
//
|
|
//==========================================================================
|
|
|
|
int FUncompressedLump::ValidateCache()
|
|
{
|
|
Owner->Reader.Seek(Position, FileReader::SeekSet);
|
|
Cache.Resize(LumpSize);
|
|
Owner->Reader.Read(Cache.Data(), LumpSize);
|
|
return 1;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// Base class for uncompressed resource files
|
|
//
|
|
//==========================================================================
|
|
|
|
FUncompressedFile::FUncompressedFile(const char *filename)
|
|
: FResourceFile(filename)
|
|
{}
|
|
|
|
FUncompressedFile::FUncompressedFile(const char *filename, FileReader &r)
|
|
: FResourceFile(filename, r)
|
|
{}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// external lump
|
|
//
|
|
//==========================================================================
|
|
|
|
FExternalLump::FExternalLump(const char *_filename, int filesize)
|
|
: Filename(_filename)
|
|
{
|
|
if (filesize == -1)
|
|
{
|
|
FileReader f;
|
|
|
|
if (f.OpenFile(_filename))
|
|
{
|
|
LumpSize = (int)f.GetLength();
|
|
}
|
|
else
|
|
{
|
|
LumpSize = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LumpSize = filesize;
|
|
}
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// Caches a lump's content and increases the reference counter
|
|
// For external lumps this reopens the file each time it is accessed
|
|
//
|
|
//==========================================================================
|
|
|
|
int FExternalLump::ValidateCache()
|
|
{
|
|
Cache.Resize(LumpSize);
|
|
FileReader f;
|
|
|
|
if (f.OpenFile(Filename))
|
|
{
|
|
f.Read(Cache.Data(), LumpSize);
|
|
}
|
|
else
|
|
{
|
|
memset(Cache.Data(), 0, LumpSize);
|
|
}
|
|
return 1;
|
|
}
|