src/audio/bsd/SDL_bsdaudio.c
branchSDL-1.3
changeset 1668 4da1ee79c9af
parent 1662 782fd950bd46
--- a/src/audio/bsd/SDL_bsdaudio.c	Mon May 29 03:53:21 2006 +0000
+++ b/src/audio/bsd/SDL_bsdaudio.c	Mon May 29 04:04:35 2006 +0000
@@ -67,59 +67,59 @@
 #endif
 
 /* Audio driver functions */
-static void OBSD_WaitAudio (_THIS);
-static int OBSD_OpenAudio (_THIS, SDL_AudioSpec * spec);
-static void OBSD_PlayAudio (_THIS);
-static Uint8 *OBSD_GetAudioBuf (_THIS);
-static void OBSD_CloseAudio (_THIS);
+static void OBSD_WaitAudio(_THIS);
+static int OBSD_OpenAudio(_THIS, SDL_AudioSpec * spec);
+static void OBSD_PlayAudio(_THIS);
+static Uint8 *OBSD_GetAudioBuf(_THIS);
+static void OBSD_CloseAudio(_THIS);
 
 #ifdef DEBUG_AUDIO
-static void OBSD_Status (_THIS);
+static void OBSD_Status(_THIS);
 #endif
 
 /* Audio driver bootstrap functions */
 
 static int
-Audio_Available (void)
+Audio_Available(void)
 {
     int fd;
     int available;
 
     available = 0;
-    fd = SDL_OpenAudioPath (NULL, 0, OPEN_FLAGS, 0);
+    fd = SDL_OpenAudioPath(NULL, 0, OPEN_FLAGS, 0);
     if (fd >= 0) {
         available = 1;
-        close (fd);
+        close(fd);
     }
     return (available);
 }
 
 static void
-Audio_DeleteDevice (SDL_AudioDevice * device)
+Audio_DeleteDevice(SDL_AudioDevice * device)
 {
-    SDL_free (device->hidden);
-    SDL_free (device);
+    SDL_free(device->hidden);
+    SDL_free(device);
 }
 
 static SDL_AudioDevice *
-Audio_CreateDevice (int devindex)
+Audio_CreateDevice(int devindex)
 {
     SDL_AudioDevice *this;
 
     /* Initialize all variables that we clean on shutdown */
-    this = (SDL_AudioDevice *) SDL_malloc (sizeof (SDL_AudioDevice));
+    this = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
     if (this) {
-        SDL_memset (this, 0, (sizeof *this));
+        SDL_memset(this, 0, (sizeof *this));
         this->hidden = (struct SDL_PrivateAudioData *)
-            SDL_malloc ((sizeof *this->hidden));
+            SDL_malloc((sizeof *this->hidden));
     }
     if ((this == NULL) || (this->hidden == NULL)) {
-        SDL_OutOfMemory ();
+        SDL_OutOfMemory();
         if (this)
-            SDL_free (this);
+            SDL_free(this);
         return (0);
     }
-    SDL_memset (this->hidden, 0, (sizeof *this->hidden));
+    SDL_memset(this->hidden, 0, (sizeof *this->hidden));
     audio_fd = -1;
 
     /* Set the function pointers */
@@ -141,7 +141,7 @@
 
 /* This function waits until it is possible to write a full sound buffer */
 static void
-OBSD_WaitAudio (_THIS)
+OBSD_WaitAudio(_THIS)
 {
 #ifndef USE_BLOCKING_WRITES     /* Not necessary when using blocking writes */
     /* See if we need to use timed audio synchronization */
@@ -149,63 +149,63 @@
         /* Use timer for general audio synchronization */
         Sint32 ticks;
 
-        ticks = ((Sint32) (next_frame - SDL_GetTicks ())) - FUDGE_TICKS;
+        ticks = ((Sint32) (next_frame - SDL_GetTicks())) - FUDGE_TICKS;
         if (ticks > 0) {
-            SDL_Delay (ticks);
+            SDL_Delay(ticks);
         }
     } else {
         /* Use select() for audio synchronization */
         fd_set fdset;
         struct timeval timeout;
 
-        FD_ZERO (&fdset);
-        FD_SET (audio_fd, &fdset);
+        FD_ZERO(&fdset);
+        FD_SET(audio_fd, &fdset);
         timeout.tv_sec = 10;
         timeout.tv_usec = 0;
 #ifdef DEBUG_AUDIO
-        fprintf (stderr, "Waiting for audio to get ready\n");
+        fprintf(stderr, "Waiting for audio to get ready\n");
 #endif
-        if (select (audio_fd + 1, NULL, &fdset, NULL, &timeout) <= 0) {
+        if (select(audio_fd + 1, NULL, &fdset, NULL, &timeout) <= 0) {
             const char *message =
                 "Audio timeout - buggy audio driver? (disabled)";
             /* In general we should never print to the screen,
                but in this case we have no other way of letting
                the user know what happened.
              */
-            fprintf (stderr, "SDL: %s\n", message);
+            fprintf(stderr, "SDL: %s\n", message);
             this->enabled = 0;
             /* Don't try to close - may hang */
             audio_fd = -1;
 #ifdef DEBUG_AUDIO
-            fprintf (stderr, "Done disabling audio\n");
+            fprintf(stderr, "Done disabling audio\n");
 #endif
         }
 #ifdef DEBUG_AUDIO
-        fprintf (stderr, "Ready!\n");
+        fprintf(stderr, "Ready!\n");
 #endif
     }
 #endif /* !USE_BLOCKING_WRITES */
 }
 
 static void
-OBSD_PlayAudio (_THIS)
+OBSD_PlayAudio(_THIS)
 {
     int written, p = 0;
 
     /* Write the audio data, checking for EAGAIN on broken audio drivers */
     do {
-        written = write (audio_fd, &mixbuf[p], mixlen - p);
+        written = write(audio_fd, &mixbuf[p], mixlen - p);
         if (written > 0)
             p += written;
         if (written == -1 && errno != 0 && errno != EAGAIN && errno != EINTR) {
             /* Non recoverable error has occurred. It should be reported!!! */
-            perror ("audio");
+            perror("audio");
             break;
         }
 
         if (p < written
             || ((written < 0) && ((errno == 0) || (errno == EAGAIN)))) {
-            SDL_Delay (1);      /* Let a little CPU time go by */
+            SDL_Delay(1);       /* Let a little CPU time go by */
         }
     }
     while (p < written);
@@ -220,147 +220,147 @@
         this->enabled = 0;
     }
 #ifdef DEBUG_AUDIO
-    fprintf (stderr, "Wrote %d bytes of audio data\n", written);
+    fprintf(stderr, "Wrote %d bytes of audio data\n", written);
 #endif
 }
 
 static Uint8 *
-OBSD_GetAudioBuf (_THIS)
+OBSD_GetAudioBuf(_THIS)
 {
     return (mixbuf);
 }
 
 static void
-OBSD_CloseAudio (_THIS)
+OBSD_CloseAudio(_THIS)
 {
     if (mixbuf != NULL) {
-        SDL_FreeAudioMem (mixbuf);
+        SDL_FreeAudioMem(mixbuf);
         mixbuf = NULL;
     }
     if (audio_fd >= 0) {
-        close (audio_fd);
+        close(audio_fd);
         audio_fd = -1;
     }
 }
 
 #ifdef DEBUG_AUDIO
 void
-OBSD_Status (_THIS)
+OBSD_Status(_THIS)
 {
     audio_info_t info;
 
-    if (ioctl (audio_fd, AUDIO_GETINFO, &info) < 0) {
-        fprintf (stderr, "AUDIO_GETINFO failed.\n");
+    if (ioctl(audio_fd, AUDIO_GETINFO, &info) < 0) {
+        fprintf(stderr, "AUDIO_GETINFO failed.\n");
         return;
     }
 
-    fprintf (stderr, "\n"
-             "[play/record info]\n"
-             "buffer size	:   %d bytes\n"
-             "sample rate	:   %i Hz\n"
-             "channels	:   %i\n"
-             "precision	:   %i-bit\n"
-             "encoding	:   0x%x\n"
-             "seek		:   %i\n"
-             "sample count	:   %i\n"
-             "EOF count	:   %i\n"
-             "paused		:   %s\n"
-             "error occured	:   %s\n"
-             "waiting		:   %s\n"
-             "active		:   %s\n"
-             "",
-             info.
-             play.
-             buffer_size,
-             info.
-             play.
-             sample_rate,
-             info.
-             play.
-             channels,
-             info.
-             play.
-             precision,
-             info.
-             play.
-             encoding,
-             info.
-             play.
-             seek,
-             info.
-             play.
-             samples,
-             info.
-             play.
-             eof,
-             info.
-             play.
-             pause
-             ?
-             "yes"
-             :
-             "no",
-             info.
-             play.
-             error
-             ?
-             "yes"
-             :
-             "no",
-             info.
-             play.waiting ? "yes" : "no", info.play.active ? "yes" : "no");
+    fprintf(stderr, "\n"
+            "[play/record info]\n"
+            "buffer size	:   %d bytes\n"
+            "sample rate	:   %i Hz\n"
+            "channels	:   %i\n"
+            "precision	:   %i-bit\n"
+            "encoding	:   0x%x\n"
+            "seek		:   %i\n"
+            "sample count	:   %i\n"
+            "EOF count	:   %i\n"
+            "paused		:   %s\n"
+            "error occured	:   %s\n"
+            "waiting		:   %s\n"
+            "active		:   %s\n"
+            "",
+            info.
+            play.
+            buffer_size,
+            info.
+            play.
+            sample_rate,
+            info.
+            play.
+            channels,
+            info.
+            play.
+            precision,
+            info.
+            play.
+            encoding,
+            info.
+            play.
+            seek,
+            info.
+            play.
+            samples,
+            info.
+            play.
+            eof,
+            info.
+            play.
+            pause
+            ?
+            "yes"
+            :
+            "no",
+            info.
+            play.
+            error
+            ?
+            "yes"
+            :
+            "no",
+            info.
+            play.waiting ? "yes" : "no", info.play.active ? "yes" : "no");
 
-    fprintf (stderr, "\n"
-             "[audio info]\n"
-             "monitor_gain	:   %i\n"
-             "hw block size	:   %d bytes\n"
-             "hi watermark	:   %i\n"
-             "lo watermark	:   %i\n"
-             "audio mode	:   %s\n"
-             "",
-             info.monitor_gain,
-             info.blocksize,
-             info.hiwat, info.lowat,
-             (info.mode == AUMODE_PLAY) ? "PLAY"
-             : (info.mode = AUMODE_RECORD) ? "RECORD"
-             : (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL" : "?"));
+    fprintf(stderr, "\n"
+            "[audio info]\n"
+            "monitor_gain	:   %i\n"
+            "hw block size	:   %d bytes\n"
+            "hi watermark	:   %i\n"
+            "lo watermark	:   %i\n"
+            "audio mode	:   %s\n"
+            "",
+            info.monitor_gain,
+            info.blocksize,
+            info.hiwat, info.lowat,
+            (info.mode == AUMODE_PLAY) ? "PLAY"
+            : (info.mode = AUMODE_RECORD) ? "RECORD"
+            : (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL" : "?"));
 }
 #endif /* DEBUG_AUDIO */
 
 static int
-OBSD_OpenAudio (_THIS, SDL_AudioSpec * spec)
+OBSD_OpenAudio(_THIS, SDL_AudioSpec * spec)
 {
     char audiodev[64];
     Uint16 format;
     audio_info_t info;
 
-    AUDIO_INITINFO (&info);
+    AUDIO_INITINFO(&info);
 
     /* Calculate the final parameters for this audio specification */
-    SDL_CalculateAudioSpec (spec);
+    SDL_CalculateAudioSpec(spec);
 
 #ifdef USE_TIMER_SYNC
     frame_ticks = 0.0;
 #endif
 
     /* Open the audio device */
-    audio_fd = SDL_OpenAudioPath (audiodev, sizeof (audiodev), OPEN_FLAGS, 0);
+    audio_fd = SDL_OpenAudioPath(audiodev, sizeof(audiodev), OPEN_FLAGS, 0);
     if (audio_fd < 0) {
-        SDL_SetError ("Couldn't open %s: %s", audiodev, strerror (errno));
+        SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno));
         return (-1);
     }
 
     /* Set to play mode */
     info.mode = AUMODE_PLAY;
-    if (ioctl (audio_fd, AUDIO_SETINFO, &info) < 0) {
-        SDL_SetError ("Couldn't put device into play mode");
+    if (ioctl(audio_fd, AUDIO_SETINFO, &info) < 0) {
+        SDL_SetError("Couldn't put device into play mode");
         return (-1);
     }
 
     mixbuf = NULL;
-    AUDIO_INITINFO (&info);
-    for (format = SDL_FirstAudioFormat (spec->format);
-         format; format = SDL_NextAudioFormat ()) {
+    AUDIO_INITINFO(&info);
+    for (format = SDL_FirstAudioFormat(spec->format);
+         format; format = SDL_NextAudioFormat()) {
         switch (format) {
         case AUDIO_U8:
             info.play.encoding = AUDIO_ENCODING_ULINEAR;
@@ -389,42 +389,42 @@
         default:
             continue;
         }
-        if (ioctl (audio_fd, AUDIO_SETINFO, &info) == 0)
+        if (ioctl(audio_fd, AUDIO_SETINFO, &info) == 0)
             break;
     }
 
     if (!format) {
-        SDL_SetError ("No supported encoding for 0x%x", spec->format);
+        SDL_SetError("No supported encoding for 0x%x", spec->format);
         return (-1);
     }
 
     spec->format = format;
 
-    AUDIO_INITINFO (&info);
+    AUDIO_INITINFO(&info);
     info.play.channels = spec->channels;
-    if (ioctl (audio_fd, AUDIO_SETINFO, &info) == -1)
+    if (ioctl(audio_fd, AUDIO_SETINFO, &info) == -1)
         spec->channels = 1;
-    AUDIO_INITINFO (&info);
+    AUDIO_INITINFO(&info);
     info.play.sample_rate = spec->freq;
     info.blocksize = spec->size;
     info.hiwat = 5;
     info.lowat = 3;
-    (void) ioctl (audio_fd, AUDIO_SETINFO, &info);
-    (void) ioctl (audio_fd, AUDIO_GETINFO, &info);
+    (void) ioctl(audio_fd, AUDIO_SETINFO, &info);
+    (void) ioctl(audio_fd, AUDIO_GETINFO, &info);
     spec->freq = info.play.sample_rate;
     /* Allocate mixing buffer */
     mixlen = spec->size;
-    mixbuf = (Uint8 *) SDL_AllocAudioMem (mixlen);
+    mixbuf = (Uint8 *) SDL_AllocAudioMem(mixlen);
     if (mixbuf == NULL) {
         return (-1);
     }
-    SDL_memset (mixbuf, spec->silence, spec->size);
+    SDL_memset(mixbuf, spec->silence, spec->size);
 
     /* Get the parent process id (we're the parent of the audio thread) */
-    parent = getpid ();
+    parent = getpid();
 
 #ifdef DEBUG_AUDIO
-    OBSD_Status (this);
+    OBSD_Status(this);
 #endif
 
     /* We're ready to rock and roll. :-) */