86 lines
1.9 KiB
C++
86 lines
1.9 KiB
C++
|
// Emacs style mode select -*- C++ -*-
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Copyright(C) 1993-1996 Id Software, Inc.
|
||
|
|
// Copyright(C) 2008 Simon Howard
|
||
|
|
//
|
||
|
|
// This program is free software; you can redistribute it and/or
|
||
|
|
// modify it under the terms of the GNU General Public License
|
||
|
|
// as published by the Free Software Foundation; either version 2
|
||
|
|
// of the License, or (at your option) any later version.
|
||
|
|
//
|
||
|
|
// This program is distributed in the hope that it will be useful,
|
||
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
// GNU General Public License for more details.
|
||
|
|
//
|
||
|
|
// You should have received a copy of the GNU General Public License
|
||
|
|
// along with this program; if not, write to the Free Software
|
||
|
|
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
||
|
|
// 02111-1307, USA.
|
||
|
|
//
|
||
|
|
// DESCRIPTION:
|
||
|
|
// WAD I/O functions.
|
||
|
|
//
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#include "vpo_local.h"
|
||
|
|
|
||
|
|
namespace vpo
|
||
|
|
{
|
||
|
|
|
||
|
|
|
||
|
|
wad_file_t *W_OpenFile(const char *path)
|
||
|
|
{
|
||
|
|
wad_file_t *result;
|
||
|
|
|
||
|
|
FILE *fstream = fopen(path, "rb");
|
||
|
|
|
||
|
|
if (fstream == NULL)
|
||
|
|
{
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Create a new wad_file_t to hold the file handle.
|
||
|
|
|
||
|
|
result = new wad_file_t;
|
||
|
|
|
||
|
|
result->fstream = fstream;
|
||
|
|
|
||
|
|
// result->length = M_FileLength(fstream);
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void W_CloseFile(wad_file_t *wad)
|
||
|
|
{
|
||
|
|
fclose(wad->fstream);
|
||
|
|
|
||
|
|
delete wad;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Read data from the specified position in the file into the
|
||
|
|
// provided buffer. Returns the number of bytes read.
|
||
|
|
|
||
|
|
size_t W_Read(wad_file_t *wad, unsigned int offset,
|
||
|
|
void *buffer, size_t buffer_len)
|
||
|
|
{
|
||
|
|
size_t result;
|
||
|
|
|
||
|
|
// Jump to the specified position in the file.
|
||
|
|
|
||
|
|
fseek(wad->fstream, offset, SEEK_SET);
|
||
|
|
|
||
|
|
// Read into the buffer.
|
||
|
|
|
||
|
|
result = fread(buffer, 1, buffer_len, wad->fstream);
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
} // namespace vpo
|
||
|
|
|