mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-11 15:51:36 +00:00
12c84046f3
This is an extremely extensive patch as it hits every cvar, and every usage of the cvars. Cvars no longer store the value they control, instead, they use a cexpr value object to reference the value and specify the value's type (currently, a null type is used for strings). Non-string cvars are passed through cexpr, allowing expressions in the cvars' settings. Also, cvars have returned to an enhanced version of the original (id quake) registration scheme. As a minor benefit, relevant code having direct access to the cvar-controlled variables is probably a slight optimization as it removed a pointer dereference, and the variables can be located for data locality. The static cvar descriptors are made private as an additional safety layer, though there's nothing stopping external modification via Cvar_FindVar (which is needed for adding listeners). While not used yet (partly due to working out the design), cvars can have a validation function. Registering a cvar allows a primary listener (and its data) to be specified: it will always be called first when the cvar is modified. The combination of proper listeners and direct access to the controlled variable greatly simplifies the more complex cvar interactions as much less null checking is required, and there's no need for one cvar's callback to call another's. nq-x11 is known to work at least well enough for the demos. More testing will come.
137 lines
3.1 KiB
C
137 lines
3.1 KiB
C
/*
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cd_plugin.c
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cd plugin wrapper
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1999,2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "QF/cdaudio.h"
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#include "QF/cmd.h"
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#include "QF/cvar.h"
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#include "QF/qargs.h"
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#include "QF/qtypes.h"
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#include "QF/sys.h"
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#include "QF/plugin/general.h"
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#include "QF/plugin/cd.h"
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char *cd_plugin;
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static cvar_t cd_plugin_cvar = {
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.name = "cd_plugin",
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.description =
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"CD Plugin to use",
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.default_value = CD_DEFAULT,
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.flags = CVAR_ROM,
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.value = { .type = 0, .value = &cd_plugin },
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};
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plugin_t *cdmodule = NULL;
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CD_PLUGIN_PROTOS
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plugin_list_t cd_plugin_list[] = {
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CD_PLUGIN_LIST
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};
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VISIBLE void
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CDAudio_Pause (void)
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{
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if (cdmodule)
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cdmodule->functions->cd->pause ();
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}
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VISIBLE void
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CDAudio_Play (int track, qboolean looping)
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{
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if (cdmodule)
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cdmodule->functions->cd->play (track, looping);
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}
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VISIBLE void
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CDAudio_Resume (void)
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{
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if (cdmodule)
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cdmodule->functions->cd->resume ();
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}
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static void
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CDAudio_shutdown (void *data)
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{
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if (cdmodule)
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cdmodule->functions->general->shutdown ();
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}
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VISIBLE void
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CDAudio_Update (void)
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{
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if (cdmodule)
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cdmodule->functions->cd->update ();
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}
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static void
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CD_f (void)
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{
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if (cdmodule)
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cdmodule->functions->cd->cd_f ();
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}
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VISIBLE int
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CDAudio_Init (void)
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{
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Sys_RegisterShutdown (CDAudio_shutdown, 0);
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PI_RegisterPlugins (cd_plugin_list);
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Cvar_Register (&cd_plugin_cvar, 0, 0);
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if (COM_CheckParm ("-nocdaudio"))
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return 0;
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if (!*cd_plugin) {
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Sys_Printf ("Not loading CD due to no driver\n");
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return 0;
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}
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cdmodule = PI_LoadPlugin ("cd", cd_plugin);
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if (!cdmodule) {
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Sys_Printf ("Loading of cd module: %s failed!\n", cd_plugin);
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return -1;
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}
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Cmd_AddCommand (
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"cd", CD_f, "Control the CD player.\n"
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"Commands:\n"
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"eject - Eject the CD.\n"
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"info - Reports information on the CD.\n"
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"loop (track number) - Loops the specified track.\n"
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"remap (track1) (track2) ... - Remap the current track order.\n"
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"reset - Causes the CD audio to re-initialize.\n"
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"resume - Will resume playback after pause.\n"
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"off - Shuts down the CD audio system..\n"
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"on - Re-enables the CD audio system after a cd off command.\n"
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"pause - Pause the CD playback.\n"
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"play (track number) - Plays the specified track one time.\n"
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"stop - Stops the currently playing track.");
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Sys_Printf ("CD Audio Initialized\n");
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return 0;
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}
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