raze-gles/source/common/filesystem/file_pak.cpp
Christoph Oelckers a870df840e - hooked up the input system and did a major cleanup.
Much of the old system is no longer needed with all buttons being handled as keys.
Mouse axis movement is not working yet.
2019-12-24 12:59:26 +01:00

146 lines
4.1 KiB
C++

/*
** file_pak.cpp
**
**---------------------------------------------------------------------------
** 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 "resourcefile.h"
#include "printf.h"
//#include "w_wad.h"
//#include "doomtype.h"
//==========================================================================
//
//
//
//==========================================================================
struct dpackfile_t
{
char name[56];
int filepos, filelen;
} ;
struct dpackheader_t
{
int ident; // == IDPAKHEADER
int dirofs;
int dirlen;
} ;
//==========================================================================
//
// Wad file
//
//==========================================================================
class FPakFile : public FUncompressedFile
{
public:
FPakFile(const char * filename, FileReader &file);
bool Open(bool quiet);
};
//==========================================================================
//
// FWadFile::FWadFile
//
// Initializes a WAD file
//
//==========================================================================
FPakFile::FPakFile(const char *filename, FileReader &file)
: FUncompressedFile(filename, file)
{
}
//==========================================================================
//
// Open it
//
//==========================================================================
bool FPakFile::Open(bool quiet)
{
dpackheader_t header;
Reader.Read(&header, sizeof(header));
NumLumps = LittleLong(header.dirlen) / sizeof(dpackfile_t);
header.dirofs = LittleLong(header.dirofs);
TArray<dpackfile_t> fileinfo(NumLumps, true);
Reader.Seek (header.dirofs, FileReader::SeekSet);
Reader.Read (fileinfo.Data(), NumLumps * sizeof(dpackfile_t));
Lumps.Resize(NumLumps);
if (!quiet) Printf(", %d lumps\n", NumLumps);
for(uint32_t i = 0; i < NumLumps; i++)
{
Lumps[i].LumpNameSetup(fileinfo[i].name);
Lumps[i].Owner = this;
Lumps[i].Position = LittleLong(fileinfo[i].filepos);
Lumps[i].LumpSize = LittleLong(fileinfo[i].filelen);
}
return true;
}
//==========================================================================
//
// File open
//
//==========================================================================
FResourceFile *CheckPak(const char *filename, FileReader &file, bool quiet)
{
char head[4];
if (file.GetLength() >= 12)
{
file.Seek(0, FileReader::SeekSet);
file.Read(&head, 4);
file.Seek(0, FileReader::SeekSet);
if (!memcmp(head, "PACK", 4))
{
FResourceFile *rf = new FPakFile(filename, file);
if (rf->Open(quiet)) return rf;
file = std::move(rf->Reader); // to avoid destruction of reader
delete rf;
}
}
return NULL;
}