592 lines
12 KiB
C++
592 lines
12 KiB
C++
/*
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* cd_sdl.c
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*
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* Copyright (C) 1996-1997 Id Software, Inc.
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* Taken from the Twilight project with modifications
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* to make it work with Hexen II: Hammer of Thyrion.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#if defined(SDL_FRAMEWORK) || defined(NO_SDL_CONFIG)
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#if defined(USE_SDL2)
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#include <SDL2/SDL.h>
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#else
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#include <SDL/SDL.h>
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#endif
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#else
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#include "SDL.h"
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#endif
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#ifndef SDL_INIT_CDROM
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/* SDL dropped support for
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cd audio since v1.3.0 */
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#pragma message("Warning: SDL CDAudio support disabled")
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#include "cd_null.c"
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#else /* SDL_INIT_CDROM */
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#include "quakedef.hpp"
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static bool cdValid = false;
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static bool playing = false;
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static bool wasPlaying = false;
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static bool enabled = true;
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static bool playLooping = false;
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static byte remap[100];
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static byte playTrack;
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static double endOfTrack = -1.0, pausetime = -1.0;
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static SDL_CD *cd_handle;
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static int cd_dev = -1;
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static float old_cdvolume;
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static bool hw_vol_works = true;
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static void CDAudio_Eject(void)
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{
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if (!cd_handle || !enabled)
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return;
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#ifdef __linux__
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SDL_CDStop(cd_handle); /* see CDAudio_Stop() */
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#endif
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if (SDL_CDEject(cd_handle) < 0)
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console::info ("Unable to eject CD-ROM: %s\n", SDL_GetError ());
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}
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static int CDAudio_GetAudioDiskInfo(void)
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{
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cdValid = false;
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if (!cd_handle)
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return -1;
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if ( ! CD_INDRIVE(SDL_CDStatus(cd_handle)) )
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return -1;
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cdValid = true;
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return 0;
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}
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int CDAudio_Play(byte track, bool looping)
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{
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int len_m, len_s, len_f;
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if (!cd_handle || !enabled)
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return -1;
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if (!cdValid)
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{
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CDAudio_GetAudioDiskInfo();
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if (!cdValid)
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return -1;
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}
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track = remap[track];
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if (track < 1 || track > cd_handle->numtracks)
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{
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console::info ("CDAudio_Play: Bad track number %d.\n", track);
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return -1;
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}
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if (cd_handle->track[track-1].type == SDL_DATA_TRACK)
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{
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console::info ("CDAudio_Play: track %d is not audio\n", track);
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return -1;
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}
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if (playing)
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{
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if (playTrack == track)
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return 0;
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CDAudio_Stop();
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}
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if (SDL_CDPlay(cd_handle, cd_handle->track[track-1].offset, cd_handle->track[track-1].length) < 0)
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{
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console::info ("CDAudio_Play: Unable to play track %d: %s\n", track, SDL_GetError ());
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return -1;
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}
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playLooping = looping;
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playTrack = track;
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playing = true;
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FRAMES_TO_MSF(cd_handle->track[track-1].length, &len_m, &len_s, &len_f);
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endOfTrack = realtime + ((double)len_m * 60.0) + (double)len_s + (double)len_f / (double)CD_FPS;
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/* Add the pregap for the next track. This means that disc-at-once CDs
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* won't loop smoothly, but they wouldn't anyway so it doesn't really
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* matter. SDL doesn't give us pregap information anyway, so you'll
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* just have to live with it. */
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endOfTrack += 2.0;
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pausetime = -1.0;
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if (bgmvolume.value == 0) /* don't bother advancing */
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CDAudio_Pause ();
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return 0;
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}
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void CDAudio_Stop(void)
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{
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if (!cd_handle || !enabled)
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return;
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if (!playing)
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return;
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#ifdef __linux__
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/* Don't really stop, but just pause: On some devices, the CDROMSTOP
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* ioctl causes any followup ioctls to fail for a considerable time.
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* observed with a TSSTcorp CDW/DVD SH-M522C drive with TS05 and TS08
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* firmware versions running under a 2.6.27.25 kernel, and with a
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* Samsung DVD r/w drive running under 2.6.35.6 kernel.
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* Therefore, avoid dead stops if playback may be resumed shortly. */
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if (SDL_CDPause(cd_handle) < 0)
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console::info ("CDAudio_Stop: Unable to stop CD-ROM (%s)\n", SDL_GetError());
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#else
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if (SDL_CDStop(cd_handle) < 0)
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console::info ("CDAudio_Stop: Unable to stop CD-ROM (%s)\n", SDL_GetError());
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#endif
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wasPlaying = false;
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playing = false;
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pausetime = -1.0;
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endOfTrack = -1.0;
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}
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void CDAudio_Pause(void)
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{
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if (!cd_handle || !enabled)
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return;
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if (!playing)
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return;
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if (SDL_CDPause(cd_handle) < 0)
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console::info ("Unable to pause CD-ROM: %s\n", SDL_GetError());
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wasPlaying = playing;
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playing = false;
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pausetime = realtime;
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}
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void CDAudio_Resume(void)
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{
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if (!cd_handle || !enabled)
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return;
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if (!cdValid)
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return;
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if (!wasPlaying)
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return;
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if (SDL_CDResume(cd_handle) < 0)
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console::info ("Unable to resume CD-ROM: %s\n", SDL_GetError());
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playing = true;
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endOfTrack += realtime - pausetime;
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pausetime = -1.0;
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}
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static int get_first_audiotrk (void)
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{
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int i;
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for (i = 0; i < cd_handle->numtracks; ++i)
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if (cd_handle->track[i].type != SDL_DATA_TRACK)
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return ++i;
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return 1;
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}
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static void CD_f (void)
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{
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const char *command;
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int ret, n;
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if (command::argc() < 2)
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{
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console::info("commands:");
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console::info("on, off, reset, remap, \n");
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console::info("play, stop, loop, pause, resume\n");
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console::info("eject, info, next, prev\n");
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return;
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}
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command = command::argv (1)->c_str();
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if (q_strcasecmp(command, "on") == 0)
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{
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enabled = true;
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return;
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}
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if (q_strcasecmp(command, "off") == 0)
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{
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if (playing)
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CDAudio_Stop();
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enabled = false;
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return;
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}
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if (q_strcasecmp(command, "reset") == 0)
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{
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enabled = true;
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if (playing)
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CDAudio_Stop();
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for (n = 0; n < 100; n++)
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remap[n] = n;
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CDAudio_GetAudioDiskInfo();
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return;
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}
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if (q_strcasecmp(command, "remap") == 0)
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{
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ret = command::argc() - 2;
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if (ret <= 0)
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{
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for (n = 1; n < 100; n++)
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if (remap[n] != n)
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console::info(" %u -> %u\n", n, remap[n]);
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return;
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}
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for (n = 1; n <= ret; n++)
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remap[n] = atoi(command::argv (n + 1)->c_str());
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return;
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}
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if (!cdValid)
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{
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CDAudio_GetAudioDiskInfo();
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if (!cdValid)
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{
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console::info("No CD in player.\n");
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return;
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}
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}
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if (q_strcasecmp(command, "play") == 0)
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{
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n = atoi(command::argv (2)->c_str());
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if (n == 0)
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n = 1;
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CDAudio_Play((byte)n, false);
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return;
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}
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if (q_strcasecmp(command, "loop") == 0)
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{
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CDAudio_Play((byte)atoi(command::argv (2)->c_str()), true);
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return;
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}
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if (q_strcasecmp(command, "stop") == 0)
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{
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CDAudio_Stop();
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return;
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}
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if (q_strcasecmp(command, "pause") == 0)
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{
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CDAudio_Pause();
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return;
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}
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if (q_strcasecmp(command, "resume") == 0)
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{
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CDAudio_Resume();
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return;
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}
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if (q_strcasecmp(command, "eject") == 0)
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{
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if (playing)
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CDAudio_Stop();
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CDAudio_Eject();
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cdValid = false;
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return;
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}
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if (q_strcasecmp(command, "info") == 0)
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{
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int current_min, current_sec, current_frame;
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int length_min, length_sec, length_frame;
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console::info ("%u tracks\n", cd_handle->numtracks);
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if (playing)
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console::info("Currently %s track %u\n", playLooping ? "looping" : "playing", playTrack);
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else if (wasPlaying)
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console::info("Paused %s track %u\n", playLooping ? "looping" : "playing", playTrack);
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if (playing || wasPlaying)
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{
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SDL_CDStatus(cd_handle);
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FRAMES_TO_MSF(cd_handle->cur_frame, ¤t_min, ¤t_sec, ¤t_frame);
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FRAMES_TO_MSF(cd_handle->track[playTrack-1].length, &length_min, &length_sec, &length_frame);
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console::info ("Current position: %d:%02d.%02d (of %d:%02d.%02d)\n",
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current_min, current_sec, current_frame * 60 / CD_FPS,
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length_min, length_sec, length_frame * 60 / CD_FPS);
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}
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console::info("Volume is %f\n", bgmvolume.value);
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return;
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}
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if (q_strcasecmp(command, "next") == 0)
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{
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if (playTrack == cd_handle->numtracks)
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playTrack = get_first_audiotrk() - 1;
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CDAudio_Play(playTrack + 1, playLooping);
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return;
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}
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if (q_strcasecmp(command, "prev") == 0)
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{
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if (playTrack == get_first_audiotrk())
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playTrack = cd_handle->numtracks + 1;
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CDAudio_Play(playTrack - 1, playLooping);
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return;
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}
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console::info ("cd: unknown command \"%s\"\n", command);
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}
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static bool CD_GetVolume (void *unused)
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{
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/* FIXME: write proper code in here when SDL
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supports cdrom volume control some day. */
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return false;
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}
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static bool CD_SetVolume (void *unused)
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{
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/* FIXME: write proper code in here when SDL
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supports cdrom volume control some day. */
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return false;
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}
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static bool CDAudio_SetVolume (float value)
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{
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if (!cd_handle || !enabled)
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return false;
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old_cdvolume = value;
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if (value == 0.0f)
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CDAudio_Pause ();
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else
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CDAudio_Resume();
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if (!hw_vol_works)
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{
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return false;
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}
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else
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{
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/* FIXME: write proper code in here when SDL
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supports cdrom volume control some day. */
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return CD_SetVolume (NULL);
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}
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}
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void CDAudio_Update(void)
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{
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CDstatus curstat;
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/* static double lastchk;*/
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if (!cd_handle || !enabled)
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return;
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if (old_cdvolume != bgmvolume.value)
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CDAudio_SetVolume (bgmvolume.value);
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/* if (playing && realtime > lastchk)*/
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if (playing && realtime > endOfTrack)
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{
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/* lastchk = realtime + 2;*/ /* two seconds between chks */
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curstat = SDL_CDStatus(cd_handle);
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if (curstat != CD_PLAYING && curstat != CD_PAUSED)
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{
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playing = false;
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endOfTrack = -1.0;
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if (playLooping)
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CDAudio_Play(playTrack, true);
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}
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}
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}
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static const char *get_cddev_arg (const char *arg)
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{
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#if defined(_WIN32)
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/* arg should be like "D:\", make sure it is so,
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* but tolerate args like "D" or "D:", as well. */
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static char drive[4];
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if (!arg || ! *arg)
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return NULL;
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if (arg[1] != '\0')
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{
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if (arg[1] != ':')
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return NULL;
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if (arg[2] != '\0')
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{
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if (arg[2] != '\\' &&
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arg[2] != '/')
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return NULL;
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if (arg[3] != '\0')
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return NULL;
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}
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}
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if (*arg >= 'A' && *arg <= 'Z')
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{
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drive[0] = *arg;
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drive[1] = ':';
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drive[2] = '\\';
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drive[3] = '\0';
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return drive;
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}
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else if (*arg >= 'a' && *arg <= 'z')
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{
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/* make it uppercase for SDL */
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drive[0] = *arg - ('a' - 'A');
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drive[1] = ':';
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drive[2] = '\\';
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drive[3] = '\0';
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return drive;
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}
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return NULL;
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#else
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if (!arg || ! *arg)
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return NULL;
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return arg;
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#endif
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}
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static void export_cddev_arg (void)
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{
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/* Bad ugly hack to workaround SDL's cdrom device detection.
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* not needed for windows due to the way SDL_cdrom works. */
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#if !defined(_WIN32)
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auto i = common::check_param("-cddev");
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if (i.has_value() && i.value() < com_argc - 1 && com_argv[i.value()+1][0] != '\0')
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{
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static char arg[64];
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q_snprintf(arg, sizeof(arg), "SDL_CDROM=%s", com_argv[i.value()+1]);
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putenv(arg);
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}
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#endif
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}
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int CDAudio_Init(void)
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{
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if (safemode || common::check_param("-nocdaudio").has_value())
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return -1;
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export_cddev_arg();
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if (SDL_InitSubSystem(SDL_INIT_CDROM) < 0)
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{
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console::info("Couldn't init SDL cdrom: %s\n", SDL_GetError());
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return -1;
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}
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const int sdl_num_drives = SDL_CDNumDrives();
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console::info ("SDL detected %d CD-ROM drive%c\n", sdl_num_drives,
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sdl_num_drives == 1 ? ' ' : 's');
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if (sdl_num_drives < 1)
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return -1;
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if (const auto dev = common::check_param("-cddev"); dev.has_value() && dev.value() < com_argc - 1)
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{
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const char *userdev = get_cddev_arg(com_argv[dev.value()+1]);
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if (!userdev)
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{
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console::info("Invalid argument to -cddev\n");
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return -1;
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}
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for (auto i = 0; i < sdl_num_drives; i++)
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{
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if (!q_strcasecmp(SDL_CDName(i), userdev))
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{
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cd_dev = i;
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break;
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}
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}
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if (cd_dev == -1)
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{
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console::info("SDL couldn't find cdrom device %s\n", userdev);
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return -1;
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}
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}
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if (cd_dev == -1)
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cd_dev = 0; /* default drive */
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cd_handle = SDL_CDOpen(cd_dev);
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if (!cd_handle)
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{
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console::info ("CDAudio_Init: Unable to open CD-ROM drive %s (%s)\n",
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SDL_CDName(cd_dev), SDL_GetError());
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return -1;
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}
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for (auto i = 0; i < 100; i++)
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remap[i] = i;
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enabled = true;
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old_cdvolume = bgmvolume.value;
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console::info("CDAudio initialized (SDL, using %s)\n", SDL_CDName(cd_dev));
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if (CDAudio_GetAudioDiskInfo())
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{
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console::info("CDAudio_Init: No CD in drive\n");
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cdValid = false;
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}
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command::add ("cd", CD_f);
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hw_vol_works = CD_GetVolume (NULL); /* no SDL support at present. */
|
|
if (hw_vol_works)
|
|
hw_vol_works = CDAudio_SetVolume (bgmvolume.value);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void CDAudio_Shutdown(void)
|
|
{
|
|
if (!cd_handle)
|
|
return;
|
|
CDAudio_Stop();
|
|
if (hw_vol_works)
|
|
CD_SetVolume (NULL); /* no SDL support at present. */
|
|
#ifdef __linux__
|
|
SDL_CDStop(cd_handle); /* see CDAudio_Stop() */
|
|
#endif
|
|
SDL_CDClose(cd_handle);
|
|
cd_handle = NULL;
|
|
cd_dev = -1;
|
|
SDL_QuitSubSystem(SDL_INIT_CDROM);
|
|
}
|
|
|
|
#endif /* SDL_INIT_CDROM */
|
|
|