quakeforge/libs/input/in_axis.c
Bill Currie 5c72ce10d2 [input] Delay event system init
I think I had though it using a constructor init was ok, but it turns
out that was problematic. That, or I missed it in my recent audit. Fixes
a sys syserror during shutdown.
2023-09-21 02:02:12 +09:00

132 lines
2.5 KiB
C

/*
in_axis.c
Logical axis support
Copyright (C) 2021 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2021/10/1
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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include "QF/cmd.h"
#include "QF/hash.h"
#include "QF/input.h"
#include "QF/sys.h"
static hashtab_t *axis_tab;
static const char *
axis_get_key (const void *a, void *data)
{
__auto_type axis = (const in_axis_t *) a;
return axis->name;
}
static void
axis_free (void *a, void *data)
{
}
VISIBLE int
IN_RegisterAxis (in_axis_t *axis)
{
const char *name = axis->name;
if (Hash_Find (axis_tab, name)) {
return 0;
}
Hash_Add (axis_tab, axis);
return 1;
}
VISIBLE int
IN_UnregisterAxis (in_axis_t *axis)
{
const char *name = axis->name;
if (!Hash_Find (axis_tab, name)) {
return 0;
}
Hash_Free (axis_tab, Hash_Del (axis_tab, name));
return 1;
}
VISIBLE in_axis_t *
IN_FindAxis (const char *name)
{
return Hash_Find (axis_tab, name);
}
static void
axis_clear_state (void *_a, void *data)
{
//FIXME what to do here?
}
void
IN_AxisClearStates (void)
{
Hash_ForEach (axis_tab, axis_clear_state, 0);
}
void
IN_AxisAddListener (in_axis_t *axis, axis_listener_t listener, void *data)
{
if (!axis->listeners) {
axis->listeners = malloc (sizeof (*axis->listeners));
LISTENER_SET_INIT (axis->listeners, 8);
}
LISTENER_ADD (axis->listeners, listener, data);
}
void
IN_AxisRemoveListener (in_axis_t *axis, axis_listener_t listener, void *data)
{
if (axis->listeners) {
LISTENER_REMOVE (axis->listeners, listener, data);
}
}
static void
in_axis_shutdown (void *data)
{
Sys_MaskPrintf (SYS_input, "in_axis_shutdown\n");
Hash_DelTable (axis_tab);
}
void
IN_AxisInit (void)
{
axis_tab = Hash_NewTable (127, axis_get_key, axis_free, 0, 0);
Sys_RegisterShutdown (in_axis_shutdown, 0);
}