rnd-20001128-1-src
[rocksndiamonds.git] / src / sound.c
index 6db2f63329a54bab3a1575982463ac276abd13ec..185b1822d9bbe3213a927ba37c803a671897107a 100644 (file)
@@ -23,52 +23,95 @@ static struct SoundControl emptySoundControl =
   -1,0,0, FALSE,FALSE,FALSE,FALSE,FALSE, 0,0L,0L,NULL
 };
 
-#if !defined(MSDOS) && !defined(WIN32)
+#if defined(PLATFORM_UNIX)
 static int stereo_volume[PSND_MAX_LEFT2RIGHT+1];
 static char premix_first_buffer[SND_BLOCKSIZE];
 #ifdef VOXWARE
 static char premix_left_buffer[SND_BLOCKSIZE];
 static char premix_right_buffer[SND_BLOCKSIZE];
 static int premix_last_buffer[SND_BLOCKSIZE];
-#endif /* VOXWARE */
+#endif
 static unsigned char playing_buffer[SND_BLOCKSIZE];
-#endif /* !MSDOS && !WIN32 */
+#endif
 
 /* forward declaration of internal functions */
 #ifdef VOXWARE
 static void SoundServer_InsertNewSound(struct SoundControl);
-#endif
-
-#if !defined(VOXWARE) && !defined(MSDOS) && !defined(WIN32)
+#else
+#if defined(PLATFORM_UNIX)
 static unsigned char linear_to_ulaw(int);
 static int ulaw_to_linear(unsigned char);
 #endif
+#endif
 
 #ifdef HPUX_AUDIO
 static void HPUX_Audio_Control();
 #endif
 
-#ifdef MSDOS
+#if defined(PLATFORM_MSDOS)
 static void SoundServer_InsertNewSound(struct SoundControl);
 static void SoundServer_StopSound(int);
 static void SoundServer_StopAllSounds();
 #endif
 
+#if defined(PLATFORM_UNIX)
+int OpenAudio(char *audio_device_name)
+{
+  int audio_fd;
+
+  /* try to open audio device in non-blocking mode */
+  if ((audio_fd = open(audio_device_name, O_WRONLY | O_NONBLOCK)) < 0)
+    return audio_fd;
+
+  /* re-open audio device in blocking mode */
+  close(audio_fd);
+  audio_fd = open(audio_device_name, O_WRONLY);
+
+  return audio_fd;
+}
+
+int CheckAudio(char *audio_device_name)
+{
+  int audio_fd;
+
+  if (access(audio_device_name, W_OK) != 0)
+  {
+    Error(ERR_WARN, "cannot access audio device - no sound");
+    return SOUND_OFF;
+  }
+
+  if ((audio_fd = OpenAudio(sound_device_name)) < 0)
+  {
+    Error(ERR_WARN, "cannot open audio device - no sound");
+    return SOUND_OFF;
+  }
+
+  close(audio_fd);
+
+  return SOUND_AVAILABLE;
+}
+
+boolean UnixInitAudio(void)
+{
+  return TRUE;
+}
+#endif /* PLATFORM_UNIX */
+
 void SoundServer()
 {
   int i;
-#if !defined(MSDOS) && !defined(WIN32)
+#if defined(PLATFORM_UNIX)
   struct SoundControl snd_ctrl;
   fd_set sound_fdset;
 
-  close(sound_pipe[1]);                /* no writing into pipe needed */
+  close(sysinfo.audio_process_pipe[1]);        /* no writing into pipe needed */
 #endif
 
   for(i=0;i<MAX_SOUNDS_PLAYING;i++)
     playlist[i] = emptySoundControl;
   playing_sounds = 0;
 
-#if !defined(MSDOS) && !defined(WIN32)
+#if defined(PLATFORM_UNIX)
   stereo_volume[PSND_MAX_LEFT2RIGHT] = 0;
   for(i=0;i<PSND_MAX_LEFT2RIGHT;i++)
     stereo_volume[i] =
@@ -79,15 +122,16 @@ void SoundServer()
 #endif
 
   FD_ZERO(&sound_fdset); 
-  FD_SET(sound_pipe[0], &sound_fdset);
+  FD_SET(sysinfo.audio_process_pipe[0], &sound_fdset);
 
   while(1)     /* wait for sound playing commands from client */
   {
-    FD_SET(sound_pipe[0], &sound_fdset);
-    select(sound_pipe[0]+1, &sound_fdset, NULL, NULL, NULL);
-    if (!FD_ISSET(sound_pipe[0], &sound_fdset))
+    FD_SET(sysinfo.audio_process_pipe[0], &sound_fdset);
+    select(sysinfo.audio_process_pipe[0] + 1, &sound_fdset, NULL, NULL, NULL);
+    if (!FD_ISSET(sysinfo.audio_process_pipe[0], &sound_fdset))
       continue;
-    if (read(sound_pipe[0], &snd_ctrl, sizeof(snd_ctrl)) != sizeof(snd_ctrl))
+    if (read(sysinfo.audio_process_pipe[0], &snd_ctrl, sizeof(snd_ctrl))
+       != sizeof(snd_ctrl))
       Error(ERR_EXIT_SOUND_SERVER, "broken pipe - no sounds");
 
 #ifdef VOXWARE
@@ -110,7 +154,7 @@ void SoundServer()
        playlist[i]=emptySoundControl;
       playing_sounds=0;
 
-      close(sound_device);
+      close(sysinfo.audio_fd);
     }
     else if (snd_ctrl.stop_sound)
     {
@@ -125,7 +169,7 @@ void SoundServer()
        }
 
       if (!playing_sounds)
-       close(sound_device);
+       close(sysinfo.audio_fd);
     }
 
     if (playing_sounds || snd_ctrl.active)
@@ -144,7 +188,8 @@ void SoundServer()
       int sample_rate = 22050;
 #endif
 
-      if (playing_sounds || (sound_device=open(sound_device_name,O_WRONLY))>=0)
+      if (playing_sounds ||
+         (sysinfo.audio_fd = OpenAudio(sound_device_name)) >= 0)
       {
        if (!playing_sounds)    /* we just opened the audio device */
        {
@@ -152,12 +197,13 @@ void SoundServer()
          /* (with stereo the effective buffer size will shrink to 256) */
          fragment_size = 0x00020009;
 
-         if (ioctl(sound_device, SNDCTL_DSP_SETFRAGMENT, &fragment_size) < 0)
+         if (ioctl(sysinfo.audio_fd, SNDCTL_DSP_SETFRAGMENT, &fragment_size)
+             < 0)
            Error(ERR_EXIT_SOUND_SERVER,
                  "cannot set fragment size of /dev/dsp - no sounds");
 
          /* try if we can use stereo sound */
-         if (ioctl(sound_device, SNDCTL_DSP_STEREO, &stereo) < 0)
+         if (ioctl(sysinfo.audio_fd, SNDCTL_DSP_STEREO, &stereo) < 0)
          {
 #ifdef DEBUG
            static boolean reported = FALSE;
@@ -171,12 +217,13 @@ void SoundServer()
            stereo = FALSE;
          }
 
-         if (ioctl(sound_device, SNDCTL_DSP_SPEED, &sample_rate) < 0)
+         if (ioctl(sysinfo.audio_fd, SNDCTL_DSP_SPEED, &sample_rate) < 0)
            Error(ERR_EXIT_SOUND_SERVER,
                  "cannot set sample rate of /dev/dsp - no sounds");
 
          /* get the real fragmentation size; this should return 512 */
-         if (ioctl(sound_device, SNDCTL_DSP_GETBLKSIZE, &fragment_size) < 0)
+         if (ioctl(sysinfo.audio_fd, SNDCTL_DSP_GETBLKSIZE, &fragment_size)
+             < 0)
            Error(ERR_EXIT_SOUND_SERVER,
                  "cannot get fragment size of /dev/dsp - no sounds");
 
@@ -187,9 +234,10 @@ void SoundServer()
          SoundServer_InsertNewSound(snd_ctrl);
 
        while(playing_sounds &&
-             select(sound_pipe[0]+1,&sound_fdset,NULL,NULL,&delay)<1)
+             select(sysinfo.audio_process_pipe[0] + 1,
+                    &sound_fdset, NULL, NULL, &delay) < 1)
        {       
-         FD_SET(sound_pipe[0], &sound_fdset);
+         FD_SET(sysinfo.audio_process_pipe[0], &sound_fdset);
 
          /* first clear the last premixing buffer */
          memset(premix_last_buffer,0,fragment_size*sizeof(int));
@@ -286,12 +334,12 @@ void SoundServer()
          }
 
          /* finally play the sound fragment */
-         write(sound_device,playing_buffer,fragment_size);
+         write(sysinfo.audio_fd, playing_buffer,fragment_size);
        }
 
        /* if no sounds playing, free device for other sound programs */
        if (!playing_sounds)
-         close(sound_device);
+         close(sysinfo.audio_fd);
       }
     }
 
@@ -306,14 +354,15 @@ void SoundServer()
       int wait_percent = 90;   /* wait 90% of the real playing time */
       int i;
 
-      if ((sound_device=open(sound_device_name,O_WRONLY))>=0)
+      if ((sysinfo.audio_fd = OpenAudio(sound_device_name)) >= 0)
       {
        playing_sounds = 1;
 
        while(playing_sounds &&
-             select(sound_pipe[0]+1,&sound_fdset,NULL,NULL,&delay)<1)
+             select(sysinfo.audio_process_pipe[0] + 1,
+                    &sound_fdset, NULL, NULL, &delay) < 1)
        {       
-         FD_SET(sound_pipe[0], &sound_fdset);
+         FD_SET(sysinfo.audio_process_pipe[0], &sound_fdset);
 
          /* get pointer and size of the actual sound sample */
          sample_ptr = snd_ctrl.data_ptr + snd_ctrl.playingpos;
@@ -340,12 +389,12 @@ void SoundServer()
            playing_sounds = 0;
 
          /* finally play the sound fragment */
-         write(sound_device,playing_buffer,sample_size);
+         write(sysinfo.audio_fd,playing_buffer,sample_size);
 
          delay.tv_sec = 0;
          delay.tv_usec = ((sample_size*10*wait_percent)/(sample_rate))*1000;
        }
-       close(sound_device);
+       close(sysinfo.audio_fd);
       }
     }
 
@@ -353,11 +402,11 @@ void SoundServer()
 
   }
 
-#endif /* !MSDOS && !WIN32 */
+#endif /* PLATFORM_UNIX */
 
 }
 
-#ifdef MSDOS
+#if defined(PLATFORM_MSDOS)
 static void sound_handler(struct SoundControl snd_ctrl)
 {
   int i;
@@ -408,9 +457,9 @@ static void sound_handler(struct SoundControl snd_ctrl)
   if (snd_ctrl.active)
     SoundServer_InsertNewSound(snd_ctrl);
 }
-#endif /* MSDOS */
+#endif /* PLATFORM_MSDOS */
 
-#ifndef WIN32
+#if !defined(PLATFORM_WIN32)
 static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
 {
   int i, k;
@@ -422,7 +471,7 @@ static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
 
     for(i=0;i<MAX_SOUNDS_PLAYING;i++)
     {
-#ifndef MSDOS
+#if !defined(PLATFORM_MSDOS)
       int actual = 100 * playlist[i].playingpos / playlist[i].data_len;
 #else
       int actual = playlist[i].playingpos;
@@ -434,7 +483,7 @@ static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
        longest_nr=i;
       }
     }
-#ifdef MSDOS
+#if defined(PLATFORM_MSDOS)
     voice_set_volume(playlist[longest_nr].voice, 0);
     deallocate_voice(playlist[longest_nr].voice);
 #endif
@@ -458,7 +507,7 @@ static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
       {
        playlist[i].fade_sound = FALSE;
        playlist[i].volume = PSND_MAX_VOLUME;
-#ifdef MSDOS
+#if defined(PLATFORM_MSDOS)
         playlist[i].loop = PSND_LOOP;
         voice_stop_volumeramp(playlist[i].voice);
         voice_ramp_volume(playlist[i].voice, playlist[i].volume, 1000);
@@ -481,7 +530,7 @@ static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
       if (!playlist[i].active || playlist[i].nr != snd_ctrl.nr)
        continue;
 
-#ifndef MSDOS
+#if !defined(PLATFORM_MSDOS)
       actual = 100 * playlist[i].playingpos / playlist[i].data_len;
 #else
       actual = playlist[i].playingpos;
@@ -492,7 +541,8 @@ static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
        longest_nr=i;
       }
     }
-#ifdef MSDOS
+
+#if defined(PLATFORM_MSDOS)
     voice_set_volume(playlist[longest_nr].voice, 0);
     deallocate_voice(playlist[longest_nr].voice);
 #endif
@@ -507,7 +557,8 @@ static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
     {
       playlist[i] = snd_ctrl;
       playing_sounds++;
-#ifdef MSDOS
+
+#if defined(PLATFORM_MSDOS)
       playlist[i].voice = allocate_voice(Sound[snd_ctrl.nr].sample_ptr);
       if(snd_ctrl.loop)
         voice_set_playmode(playlist[i].voice, PLAYMODE_LOOP);
@@ -519,7 +570,7 @@ static void SoundServer_InsertNewSound(struct SoundControl snd_ctrl)
     }
   }
 }
-#endif /* !WIN32 */
+#endif /* !PLATFORM_WIN32 */
 
 /*
 void SoundServer_FadeSound(int nr)
@@ -535,8 +586,8 @@ void SoundServer_FadeSound(int nr)
 }
 */
 
-#ifndef WIN32
-#ifdef MSDOS
+#if !defined(PLATFORM_WIN32)
+#if defined(PLATFORM_MSDOS)
 static void SoundServer_StopSound(int nr)
 {
   int i;
@@ -547,7 +598,7 @@ static void SoundServer_StopSound(int nr)
   for(i=0;i<MAX_SOUNDS_PLAYING;i++)
     if (playlist[i].nr == nr)
     {
-#ifdef MSDOS
+#if defined(PLATFORM_MSDOS)
       voice_set_volume(playlist[i].voice, 0);
       deallocate_voice(playlist[i].voice);
 #endif
@@ -555,9 +606,9 @@ static void SoundServer_StopSound(int nr)
       playing_sounds--;
     }
 
-#ifndef MSDOS
+#if !defined(PLATFORM_MSDOS)
   if (!playing_sounds)
-    close(sound_device);
+    close(sysinfo.audio_fd);
 #endif
 }
 
@@ -567,7 +618,7 @@ static void SoundServer_StopAllSounds()
 
   for(i=0;i<MAX_SOUNDS_PLAYING;i++)
   {
-#ifdef MSDOS
+#if defined(PLATFORM_MSDOS)
     voice_set_volume(playlist[i].voice, 0);
     deallocate_voice(playlist[i].voice);
 #endif
@@ -575,12 +626,12 @@ static void SoundServer_StopAllSounds()
   }
   playing_sounds = 0;
 
-#ifndef MSDOS
-  close(sound_device);
+#if !defined(PLATFORM_MSDOS)
+  close(sysinfo.audio_fd);
 #endif
 }
-#endif /* MSDOS */
-#endif /* !WIN32 */
+#endif /* PLATFORM_MSDOS */
+#endif /* !PLATFORM_WIN32 */
 
 #ifdef HPUX_AUDIO
 static void HPUX_Audio_Control()
@@ -605,7 +656,7 @@ static void HPUX_Audio_Control()
 }
 #endif /* HPUX_AUDIO */
 
-#if !defined(VOXWARE) && !defined(MSDOS) && !defined(WIN32)
+#if !defined(VOXWARE) && defined(PLATFORM_UNIX)
 
 /* these two are stolen from "sox"... :) */
 
@@ -710,7 +761,7 @@ static int ulaw_to_linear(unsigned char ulawbyte)
 
   return(sample);
 }
-#endif /* !VOXWARE && !MSDOS && !WIN32 */
+#endif /* !VOXWARE && PLATFORM_UNIX */
 
 /*** THE STUFF ABOVE IS ONLY USED BY THE SOUND SERVER CHILD PROCESS ***/
 
@@ -721,12 +772,12 @@ static int ulaw_to_linear(unsigned char ulawbyte)
 #define CHUNK_ID_LEN            4       /* IFF style chunk id length */
 #define WAV_HEADER_SIZE                20      /* size of WAV file header */
 
-boolean LoadSound(struct SoundInfo *snd_info)
+boolean LoadSound(struct SampleInfo *snd_info)
 {
   char filename[256];
   char *sound_ext = "wav";
-#ifndef USE_SDL_LIBRARY
-#ifndef MSDOS
+#if !defined(TARGET_SDL)
+#if !defined(PLATFORM_MSDOS)
   byte sound_header_buffer[WAV_HEADER_SIZE];
   char chunk[CHUNK_ID_LEN + 1];
   int chunk_length, dummy;
@@ -739,7 +790,7 @@ boolean LoadSound(struct SoundInfo *snd_info)
          options.ro_base_directory, SOUNDS_DIRECTORY,
          snd_info->name, sound_ext);
 
-#ifdef USE_SDL_LIBRARY
+#if defined(TARGET_SDL)
 
   snd_info->mix_chunk = Mix_LoadWAV(filename);
   if (snd_info->mix_chunk == NULL)
@@ -748,9 +799,9 @@ boolean LoadSound(struct SoundInfo *snd_info)
     return FALSE;
   }
 
-#else /* !USE_SDL_LIBRARY */
+#else /* !TARGET_SDL */
 
-#ifndef MSDOS
+#if !defined(PLATFORM_MSDOS)
 
   if ((file = fopen(filename, "r")) == NULL)
   {
@@ -806,7 +857,7 @@ boolean LoadSound(struct SoundInfo *snd_info)
   for (i=0; i<snd_info->data_len; i++)
     snd_info->data_ptr[i] = snd_info->data_ptr[i] ^ 0x80;
 
-#else /* MSDOS */
+#else /* PLATFORM_MSDOS */
 
   snd_info->sample_ptr = load_sample(filename);
   if (!snd_info->sample_ptr)
@@ -815,8 +866,8 @@ boolean LoadSound(struct SoundInfo *snd_info)
     return FALSE;
   }
 
-#endif /* MSDOS */
-#endif /* !USE_SDL_LIBRARY */
+#endif /* PLATFORM_MSDOS */
+#endif /* !TARGET_SDL */
 
   return TRUE;
 }
@@ -840,7 +891,7 @@ void PlaySoundExt(int nr, int volume, int stereo, boolean loop)
 {
   struct SoundControl snd_ctrl = emptySoundControl;
 
-  if (sound_status==SOUND_OFF || !setup.sound)
+  if (!sysinfo.audio_available || !setup.sound)
     return;
 
   if (volume<PSND_MIN_VOLUME)
@@ -861,7 +912,7 @@ void PlaySoundExt(int nr, int volume, int stereo, boolean loop)
   snd_ctrl.data_ptr    = Sound[nr].data_ptr;
   snd_ctrl.data_len    = Sound[nr].data_len;
 
-#ifdef USE_SDL_LIBRARY
+#if defined(TARGET_SDL)
 
   Mix_Volume(-1, SDL_MIX_MAXVOLUME / 4);
   Mix_VolumeMusic(SDL_MIX_MAXVOLUME / 4);
@@ -869,11 +920,11 @@ void PlaySoundExt(int nr, int volume, int stereo, boolean loop)
   Mix_PlayChannel(-1, Sound[nr].mix_chunk, (loop ? -1 : 0));
 
 #else
-#ifndef MSDOS
-  if (write(sound_pipe[1], &snd_ctrl, sizeof(snd_ctrl))<0)
+#if !defined(PLATFORM_MSDOS)
+  if (write(sysinfo.audio_process_pipe[1], &snd_ctrl, sizeof(snd_ctrl)) < 0)
   {
     Error(ERR_WARN, "cannot pipe to child process - no sounds");
-    sound_status = SOUND_OFF;
+    sysinfo.audio_available = FALSE;
     return;
   }
 #else
@@ -906,7 +957,7 @@ void StopSoundExt(int nr, int method)
 {
   struct SoundControl snd_ctrl = emptySoundControl;
 
-  if (sound_status==SOUND_OFF)
+  if (!sysinfo.audio_available)
     return;
 
   if (SSND_FADING(method))
@@ -920,7 +971,7 @@ void StopSoundExt(int nr, int method)
     snd_ctrl.stop_sound = TRUE;
   }
 
-#ifdef USE_SDL_LIBRARY
+#if defined(TARGET_SDL)
 
   if (SSND_FADING(method))
   {
@@ -934,11 +985,11 @@ void StopSoundExt(int nr, int method)
   }
 
 #else
-#ifndef MSDOS
-  if (write(sound_pipe[1], &snd_ctrl, sizeof(snd_ctrl))<0)
+#if !defined(PLATFORM_MSDOS)
+  if (write(sysinfo.audio_process_pipe[1], &snd_ctrl, sizeof(snd_ctrl)) < 0)
   {
     Error(ERR_WARN, "cannot pipe to child process - no sounds");
-    sound_status = SOUND_OFF;
+    sysinfo.audio_available = FALSE;
     return;
   }
 #else
@@ -951,11 +1002,11 @@ void FreeSounds(int num_sounds)
 {
   int i;
 
-  if (sound_status == SOUND_OFF)
+  if (!sysinfo.audio_available)
     return;
 
   for(i=0; i<num_sounds; i++)
-#ifndef MSDOS
+#if !defined(PLATFORM_MSDOS)
     free(Sound[i].data_ptr);
 #else
     destroy_sample(Sound[i].sample_ptr);