332 lines
6.5 KiB
C
332 lines
6.5 KiB
C
/*
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cd_sdl.c
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SDL CD audio routines
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Copyright (C) 1996-1997 Id Software, Inc.
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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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static __attribute__ ((used)) const char rcsid[] =
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"$Id$";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <SDL.h>
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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/plugin.h"
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#include "QF/qargs.h"
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#include "QF/sound.h"
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#include "QF/sys.h"
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#include "compat.h"
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static plugin_t plugin_info;
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static plugin_data_t plugin_info_data;
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static plugin_funcs_t plugin_info_funcs;
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static general_data_t plugin_info_general_data;
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static general_funcs_t plugin_info_general_funcs;
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static cd_funcs_t plugin_info_cd_funcs;
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static qboolean cdValid = false;
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static qboolean initialized = false;
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static qboolean enabled = true;
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static qboolean playLooping = false;
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static SDL_CD *cd_id;
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static float cdvolume = 1.0;
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static cvar_t *bgmvolume;
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static void
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I_CDAudio_Eject (void)
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{
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if (!cd_id || !enabled)
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return;
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if (SDL_CDEject (cd_id))
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Sys_DPrintf ("Unable to eject CD-ROM tray.\n");
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}
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static void
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I_CDAudio_Pause (void)
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{
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if (!cd_id || !enabled)
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return;
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if (SDL_CDStatus (cd_id) != CD_PLAYING)
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return;
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if (SDL_CDPause (cd_id))
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Sys_DPrintf ("CDAudio_Pause: Failed to pause track.\n");
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}
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static void
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I_CDAudio_Stop (void)
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{
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int cdstate;
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if (!cd_id || !enabled)
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return;
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cdstate = SDL_CDStatus (cd_id);
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if ((cdstate != CD_PLAYING) && (cdstate != CD_PAUSED))
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return;
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if (SDL_CDStop (cd_id))
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Sys_DPrintf ("CDAudio_Stop: Failed to stop track.\n");
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}
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static void
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I_CDAudio_Play (int track, qboolean looping)
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{
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/* Initialize cd_stat to avoid warning */
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/* XXX - Does this default value make sense? */
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CDstatus cd_stat = CD_ERROR;
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if (!cd_id || !enabled)
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return;
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if (!cdValid) {
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cd_stat = SDL_CDStatus (cd_id);
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if (!CD_INDRIVE (cd_stat) || (!cd_id->numtracks))
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return;
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cdValid = true;
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}
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if ((track < 1) || (track >= cd_id->numtracks)) {
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I_CDAudio_Stop ();
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return;
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}
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track--; // Convert track from person to SDL value
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if (cd_stat == CD_PLAYING) {
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if (cd_id->cur_track == track)
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return;
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I_CDAudio_Stop ();
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}
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if (SDL_CDPlay (cd_id, cd_id->track[track].offset,
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cd_id->track[track].length)) {
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Sys_DPrintf ("CDAudio_Play: Unable to play track: %d\n", track + 1);
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return;
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}
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playLooping = looping;
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}
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static void
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I_CDAudio_Resume (void)
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{
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if (!cd_id || !enabled)
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return;
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if (SDL_CDStatus (cd_id) != CD_PAUSED)
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return;
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if (SDL_CDResume (cd_id))
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Sys_DPrintf ("CDAudio_Resume: Failed tp resume track.\n");
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}
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static void
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I_CDAudio_Shutdown (void)
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{
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if (!cd_id)
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return;
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I_CDAudio_Stop ();
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SDL_CDClose (cd_id);
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cd_id = NULL;
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}
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static void
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I_CDAudio_Update (void)
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{
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if (!cd_id || !enabled)
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return;
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if (bgmvolume->value != cdvolume) {
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if (cdvolume) {
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Cvar_SetValue (bgmvolume, 0.0);
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I_CDAudio_Pause ();
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} else {
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Cvar_SetValue (bgmvolume, 1.0);
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I_CDAudio_Resume ();
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}
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cdvolume = bgmvolume->value;
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return;
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}
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if (playLooping && (SDL_CDStatus (cd_id) != CD_PLAYING)
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&& (SDL_CDStatus (cd_id) != CD_PAUSED))
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I_CDAudio_Play (cd_id->cur_track + 1, true);
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}
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#define CD_f_DEFINED
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static void
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I_CD_f (void)
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{
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const char *command;
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int cdstate;
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if (Cmd_Argc () < 2)
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return;
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command = Cmd_Argv (1);
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if (strequal (command, "on")) {
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enabled = true;
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}
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if (strequal (command, "off")) {
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if (!cd_id)
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return;
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cdstate = SDL_CDStatus (cd_id);
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if ((cdstate == CD_PLAYING) || (cdstate == CD_PAUSED))
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I_CDAudio_Stop ();
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enabled = false;
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return;
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}
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if (strequal (command, "play")) {
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I_CDAudio_Play (atoi (Cmd_Argv (2)), false);
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return;
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}
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if (strequal (command, "loop")) {
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I_CDAudio_Play (atoi (Cmd_Argv (2)), true);
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return;
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}
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if (strequal (command, "stop")) {
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I_CDAudio_Stop ();
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return;
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}
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if (strequal (command, "pause")) {
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I_CDAudio_Pause ();
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return;
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}
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if (strequal (command, "resume")) {
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I_CDAudio_Resume ();
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return;
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}
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if (strequal (command, "eject")) {
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I_CDAudio_Eject ();
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return;
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}
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if (strequal (command, "info")) {
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if (!cd_id)
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return;
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cdstate = SDL_CDStatus (cd_id);
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Sys_Printf ("%d tracks\n", cd_id->numtracks);
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if (cdstate == CD_PLAYING)
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Sys_Printf ("Currently %s track %d\n",
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playLooping ? "looping" : "playing",
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cd_id->cur_track + 1);
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else if (cdstate == CD_PAUSED)
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Sys_Printf ("Paused %s track %d\n",
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playLooping ? "looping" : "playing",
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cd_id->cur_track + 1);
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return;
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}
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}
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static void
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I_CDAudio_Init (void)
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{
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if (SDL_Init (SDL_INIT_CDROM) < 0) {
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Sys_Printf ("Couldn't initialize SDL CD-AUDIO: %s\n", SDL_GetError ());
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return; // was -1
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}
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cd_id = SDL_CDOpen (0);
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if (!cd_id) {
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Sys_Printf ("CDAudio_Init: Unable to open default CD-ROM drive: %s\n",
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SDL_GetError ());
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return; // was -1
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}
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initialized = true;
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enabled = true;
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cdValid = true;
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if (!CD_INDRIVE (SDL_CDStatus (cd_id))) {
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Sys_Printf ("CDAudio_Init: No CD in drive.\n");
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cdValid = false;
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}
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if (!cd_id->numtracks) {
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Sys_Printf ("CDAudio_Init: CD contains no audio tracks.\n");
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cdValid = false;
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}
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bgmvolume = Cvar_Get ("bgmvolume", "1", CVAR_ARCHIVE, NULL,
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"Volume of CD music");
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Sys_Printf ("CD Audio Initialized.\n");
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}
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static general_funcs_t plugin_info_general_funcs = {
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I_CDAudio_Init,
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I_CDAudio_Shutdown,
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};
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static cd_funcs_t plugin_info_cd_funcs = {
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I_CD_f,
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I_CDAudio_Pause,
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I_CDAudio_Play,
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I_CDAudio_Resume,
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I_CDAudio_Update,
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};
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static plugin_funcs_t plugin_info_funcs = {
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&plugin_info_general_funcs,
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0,
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&plugin_info_cd_funcs,
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0,
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0,
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0,
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};
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static plugin_data_t plugin_info_data = {
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&plugin_info_general_data,
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0,
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0,
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0,
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0,
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0,
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};
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static plugin_t plugin_info = {
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qfp_cd,
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0,
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QFPLUGIN_VERSION,
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"0.1",
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"SDL CD Audio output\n",
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"Copyright (C) 2001 contributors of the QuakeForge project\n"
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"Please see the file \"AUTHORS\" for a list of contributors\n",
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&plugin_info_funcs,
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&plugin_info_data,
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};
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PLUGIN_INFO (cd, sdl)
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{
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return &plugin_info;
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}
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