mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-11 15:51:36 +00:00
b9d2882e02
The output fat-pvs data is the *difference* between the base pvs and fat pvs. This currently makes for about 64kB savings for marcher.bsp, and about 233MB savings for ad_tears.bsp (or about 50% (470.7MB->237.1MB)). I expect using utf-8 encoding for the run lengths to make for even bigger savings (the second output fat-pvs leaf of marcher.bsp is all 0s, or 6 bytes in the file, which would reduce to 3 bytes using utf-8).
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*
|
|
pvsfile.h
|
|
|
|
External pvs file support
|
|
|
|
Copyright (C) 2021 Bill Currie <bill@taniwha.org>
|
|
|
|
Author: Bill Currie <bill@taniwha.org>
|
|
Date: 2021/07/27
|
|
|
|
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:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
|
|
#ifndef __QF_pvsfile_h
|
|
#define __QF_pvsfile_h
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "QF/qtypes.h"
|
|
|
|
/** \defgroup pvsfile External PVS
|
|
\ingroup utils
|
|
|
|
External PVS data.
|
|
*/
|
|
///@{
|
|
|
|
#define PVS_MAGIC "QF PVS\r\n\x1a\x04"
|
|
#define PVS_VERSION 1
|
|
|
|
#define PVS_IS_FATPVS 1 ///< data is for fat pvs (phs, lighting, etc)
|
|
///< otherwise it's the base pvs
|
|
#define PVS_UTF8_RLE 2 ///< 0-byte run length encoding uses utf-8
|
|
|
|
typedef struct pvsfile_s {
|
|
char magic[16];
|
|
|
|
uint32_t version;
|
|
uint32_t md4_offset; ///< offset of md4 sum, or 0 if not present
|
|
uint32_t flags;
|
|
uint32_t visleafs; ///< does NOT include leaf-0
|
|
uint32_t visoffsets[]; ///< does NOT include leaf-0
|
|
} pvsfile_t;
|
|
|
|
///@}
|
|
|
|
#endif//__QF_pvsfile_h
|