media/libsydneyaudio/sydney_aix.patch
author Mitchell Field <mitchell.field@live.com.au>
Wed, 26 Jan 2011 07:14:30 +1100
changeset 63450 261f1a85206a2cc3ddc483d6d86e388c3c6ca1c6
parent 41185 c65d0447da26e8d0cf970ddbbec1a8da543c7c02
permissions -rw-r--r--
Bug 462361 - Remove support for building with Cygwin. r=khuey

diff -r b9e9ae011ce4 media/libsydneyaudio/include/sydney_audio.h
--- a/media/libsydneyaudio/include/sydney_audio.h	Mon Apr 12 10:01:34 2010 +0200
+++ b/media/libsydneyaudio/include/sydney_audio.h	Mon Apr 12 03:25:04 2010 -0500
@@ -80,16 +80,18 @@ async-signal safe.
 #       define SA_LITTLE_ENDIAN 1
 #   endif
 #elif defined(SOLARIS)
 #   if defined(_BIG_ENDIAN)
 #       define SA_BIG_ENDIAN 1
 #   else
 #       define SA_LITTLE_ENDIAN 1
 #   endif
+#elif defined(AIX)
+#	define SA_BIG_ENDIAN 1
 #else
 #    error "Cannot determine byte order!"
 #endif
 
 #if defined(WIN32)
 #if !defined(int32_t)
 typedef __int32 int32_t;
 #endif
diff -r b9e9ae011ce4 media/libsydneyaudio/src/Makefile.in
--- a/media/libsydneyaudio/src/Makefile.in	Mon Apr 12 10:01:34 2010 +0200
+++ b/media/libsydneyaudio/src/Makefile.in	Mon Apr 12 03:25:27 2010 -0500
@@ -78,15 +78,21 @@ OS_LIBS += -framework CoreAudio -framewo
 endif
 
 ifeq ($(OS_ARCH),SunOS)
 CSRCS		= \
 		sydney_audio_sunaudio.c \
 		$(NULL)
 endif
 
+ifeq ($(OS_ARCH),AIX)
+CSRCS		= \
+		sydney_audio_aix.c \
+		$(NULL)
+endif
+
 ifeq ($(OS_ARCH),WINNT)
 OS_LIBS += winmm.lib
 endif
 
 include $(topsrcdir)/config/rules.mk
 
 LOCAL_INCLUDES += -I$(srcdir)/../include
diff -r b9e9ae011ce4 media/libsydneyaudio/src/sydney_audio_aix.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/libsydneyaudio/src/sydney_audio_aix.c	Mon Apr 12 03:25:27 2010 -0500
@@ -0,0 +1,484 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Initial Developer of the Original Code is
+ *                Shailendra N Jain<shailen.n.jain@gmail.com>
+ *
+ * Contributor(s): 
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** *
+ */
+#include <stdlib.h>
+#include <pthread.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stropts.h>
+#include <sys/audio.h>
+#include <errno.h>
+#include <stdio.h>
+#include <pthread.h>
+#include "sydney_audio.h"
+
+#ifndef DEFAULT_AUDIO_DEVICE
+#define DEFAULT_AUDIO_DEVICE "/dev/paud0/1"
+#endif
+
+#define LOOP_WHILE_EINTR(v,func) do { (v) = (func); } \
+                while ((v) == -1 && errno == EINTR);
+
+typedef struct sa_buf sa_buf;
+struct sa_buf {
+  unsigned int      size; /* the size of data */
+  sa_buf            *next;
+  unsigned char     data[]; /* sound data */
+};
+
+struct sa_stream 
+{
+  int               audio_fd;
+  pthread_mutex_t   mutex;
+  pthread_t         thread_id;
+  int               playing;
+  int64_t           bytes_played;
+
+  /* audio format info */
+  /* default setting */
+  unsigned int      default_n_channels;
+  unsigned int      default_rate;
+  unsigned int      default_precision;
+
+  /* used settings */
+  unsigned int      rate;
+  unsigned int      n_channels;
+  unsigned int      precision;
+
+  /* buffer list */
+  sa_buf            *bl_head;
+  sa_buf            *bl_tail;
+};
+
+/* Use a default buffer size with enough room for one second of audio,
+ * assuming stereo data at 44.1kHz with 32 bits per channel, and impose
+ * a generous limit on the number of buffers.
+ */
+#define BUF_SIZE    (2 * 44100 * 4)
+
+static void* audio_callback(void* s);
+
+static sa_buf *new_buffer(int size);
+
+/*
+ * -----------------------------------------------------------------------------
+ * Startup and shutdown functions
+ * -----------------------------------------------------------------------------
+ */
+
+int
+sa_stream_create_pcm(
+  sa_stream_t      ** _s,
+  const char        * client_name,
+  sa_mode_t           mode,
+  sa_pcm_format_t     format,
+  unsigned  int       rate,
+  unsigned  int       n_channels
+) 
+{
+  sa_stream_t   * s = 0;
+
+  /* Make sure we return a NULL stream pointer on failure. */
+  if (_s == NULL) 
+    return SA_ERROR_INVALID;
+
+  *_s = NULL;
+
+  if (mode != SA_MODE_WRONLY) 
+    return SA_ERROR_NOT_SUPPORTED;
+
+  if (format != SA_PCM_FORMAT_S16_LE) 
+    return SA_ERROR_NOT_SUPPORTED;
+
+  /*
+   * Allocate the instance and required resources.
+   */
+  if ((s = malloc(sizeof(sa_stream_t))) == NULL) 
+    return SA_ERROR_OOM;
+
+  if (pthread_mutex_init(&s->mutex, NULL) != 0) {
+    free(s);
+    return SA_ERROR_SYSTEM;
+  }
+
+  s->audio_fd = NULL;
+  s->rate = rate;
+  s->n_channels = n_channels;
+  s->precision = 16;
+
+  s->playing = 0;
+  s->bytes_played = 0;
+  s->bl_tail = s->bl_head = NULL;
+
+  *_s = s;
+
+  return SA_SUCCESS;
+}
+
+
+int
+sa_stream_open(sa_stream_t *s) 
+{
+  int fd,err;
+  char *device_name;
+
+  audio_init init;
+  audio_control control;
+  audio_change change;
+
+  device_name = DEFAULT_AUDIO_DEVICE;
+
+  if (s == NULL) 
+    return SA_ERROR_NO_INIT;
+
+  if (s->audio_fd != NULL) 
+    return SA_ERROR_INVALID;
+
+  fd = open(device_name,O_WRONLY | O_NONBLOCK);
+  if (fd >= 0) 
+  {
+     close (fd);
+     fd = open (device_name, O_WRONLY);
+  }
+
+  if ( fd < 0 )
+  {
+    printf("Open %s failed:%s ",device_name,strerror(errno));
+    return SA_ERROR_NO_DEVICE;
+  }
+  
+  init.srate = s->rate;
+  init.channels = s->n_channels;
+  init.mode = AUDIO_PCM;
+  init.flags = AUDIO_BIG_ENDIAN | AUDIO_TWOS_COMPLEMENT;
+  init.operation = AUDIO_PLAY;
+
+  if (ioctl(s->audio_fd, AUDIO_INIT, &init) < 0) {
+      close(s->audio_fd);
+      return 0;
+  }
+
+  change.balance = 0x3fff0000;
+  change.volume = 0x3fff0000;
+  change.monitor = AUDIO_IGNORE;
+  change.input = AUDIO_IGNORE;
+  change.output = AUDIO_OUTPUT_1;
+
+  control.ioctl_request = AUDIO_CHANGE;
+  control.position = 0;
+  control.request_info = &change;
+
+  if (ioctl(s->audio_fd, AUDIO_CONTROL, &control) < 0) {
+      close(s->audio_fd);
+      return 0;
+  }
+
+  control.ioctl_request = AUDIO_START;
+  control.request_info = NULL;
+
+  if (ioctl(s->audio_fd, AUDIO_CONTROL, &control) < 0) {
+      close(s->audio_fd);
+      return 0;
+  }
+
+  return SA_SUCCESS;
+}
+
+int
+sa_stream_destroy(sa_stream_t *s) 
+{
+  int result; 
+
+  if (s == NULL) 
+    return SA_SUCCESS;
+
+
+  pthread_mutex_lock(&s->mutex);
+
+  result = SA_SUCCESS;
+
+  /*
+   * Shut down the audio output device.
+   * and release resources
+   */
+  if (s->audio_fd != NULL) 
+  {
+    if (close(s->audio_fd) < 0) 
+    {
+      perror("Close aix audio fd failed");
+      result = SA_ERROR_SYSTEM;
+    }
+  }
+
+  s->thread_id = 0;
+
+  while (s->bl_head != NULL) {
+    sa_buf  * next = s->bl_head->next;
+    free(s->bl_head);
+    s->bl_head = next;
+  }
+
+  pthread_mutex_unlock(&s->mutex);
+
+  if (pthread_mutex_destroy(&s->mutex) != 0) {
+    result = SA_ERROR_SYSTEM;
+  }
+
+  free(s);
+
+  return result;
+}
+
+/*
+ * -----------------------------------------------------------------------------
+ * Data read and write functions
+ * -----------------------------------------------------------------------------
+ */
+
+int
+sa_stream_write(sa_stream_t *s, const void *data, size_t nbytes) 
+{
+
+  int result;
+  sa_buf *buf;
+
+  if (s == NULL || s->audio_fd == NULL) 
+    return SA_ERROR_NO_INIT;
+
+  if (nbytes == 0) 
+    return SA_SUCCESS;
+
+
+ /*
+  * Append the new data to the end of our buffer list.
+  */
+  result = SA_SUCCESS;
+  buf = new_buffer(nbytes);
+
+  if (buf == NULL)
+    return SA_ERROR_OOM;
+
+  memcpy(buf->data,data, nbytes);
+
+  pthread_mutex_lock(&s->mutex);
+  if (!s->bl_head)
+    s->bl_head = buf;
+  else
+    s->bl_tail->next = buf;
+
+  s->bl_tail = buf;
+
+  pthread_mutex_unlock(&s->mutex);
+
+ /*
+  * Once we have our first block of audio data, enable the audio callback
+  * function. This doesn't need to be protected by the mutex, because
+  * s->playing is not used in the audio callback thread, and it's probably
+  * better not to be inside the lock when we enable the audio callback.
+  */
+  if (!s->playing) {
+    s->playing = 1;
+    if (pthread_create(&s->thread_id, NULL, audio_callback, s) != 0) {
+      result = SA_ERROR_SYSTEM;
+    }
+  } 
+
+  return result;
+}
+
+static void* 
+audio_callback(void* data)
+{
+  sa_stream_t* s = (sa_stream_t*)data;
+  sa_buf *buf;
+  int fd,nbytes_written,bytes,nbytes;
+
+  fd = s->audio_fd;
+
+  while (1)
+  { 
+    if (s->thread_id == 0)
+      break;
+
+    pthread_mutex_lock(&s->mutex);
+    while (s->bl_head) 
+    {
+      buf = s->bl_head;
+      s->bl_head = s->bl_head->next;
+
+      nbytes_written = 0; 
+      nbytes = buf->size;
+
+      while (nbytes_written < nbytes)
+      {
+        LOOP_WHILE_EINTR(bytes,(write(fd, (void *)((buf->data)+nbytes_written), nbytes-nbytes_written)));
+
+        nbytes_written += bytes;
+        if (nbytes_written != nbytes)
+          printf("AixAudio\tWrite completed short - %d vs %d. Write more data\n",nbytes_written,nbytes);
+      }
+
+      free(buf);
+      s->bytes_played += nbytes;
+     }
+     pthread_mutex_unlock(&s->mutex);
+   }
+
+  return NULL;
+}
+
+/*
+ * -----------------------------------------------------------------------------
+ * General query and support functions
+ * -----------------------------------------------------------------------------
+ */
+
+int
+sa_stream_get_write_size(sa_stream_t *s, size_t *size) 
+{
+  sa_buf  * b;
+  size_t    used = 0;
+
+  if (s == NULL ) 
+    return SA_ERROR_NO_INIT;
+
+  /* there is no interface to get the avaiable writing buffer size
+   * in aix audio, we return max size here to force sa_stream_write() to
+   * be called when there is data to be played
+   */
+  *size = BUF_SIZE; 
+
+  return SA_SUCCESS;
+}
+
+/* ---------------------------------------------------------------------------
+ * General query and support functions
+ * -----------------------------------------------------------------------------
+ */
+
+int
+sa_stream_get_position(sa_stream_t *s, sa_position_t position, int64_t *pos) 
+{
+  if (s == NULL) {
+    return SA_ERROR_NO_INIT;
+  }
+  if (position != SA_POSITION_WRITE_SOFTWARE) {
+    return SA_ERROR_NOT_SUPPORTED;
+  }
+
+  pthread_mutex_lock(&s->mutex);
+  *pos = s->bytes_played;
+  pthread_mutex_unlock(&s->mutex);
+  return SA_SUCCESS;
+}
+
+static sa_buf *
+new_buffer(int size) 
+{
+  sa_buf  * b = malloc(sizeof(sa_buf) + size);
+  if (b != NULL) {
+    b->size  = size;
+    b->next  = NULL;
+  }
+  return b;
+}
+
+/*
+ * -----------------------------------------------------------------------------
+ * Unsupported functions
+ * -----------------------------------------------------------------------------
+ */
+#define UNSUPPORTED(func)   func { return SA_ERROR_NOT_SUPPORTED; }
+
+UNSUPPORTED(int sa_stream_pause(sa_stream_t *s)) 
+UNSUPPORTED(int sa_stream_resume(sa_stream_t *s)) 
+UNSUPPORTED(int sa_stream_create_opaque(sa_stream_t **s, const char *client_name, sa_mode_t mode, const char *codec))
+UNSUPPORTED(int sa_stream_set_write_lower_watermark(sa_stream_t *s, size_t size))
+UNSUPPORTED(int sa_stream_set_read_lower_watermark(sa_stream_t *s, size_t size))
+UNSUPPORTED(int sa_stream_set_write_upper_watermark(sa_stream_t *s, size_t size))
+UNSUPPORTED(int sa_stream_set_read_upper_watermark(sa_stream_t *s, size_t size))
+UNSUPPORTED(int sa_stream_set_channel_map(sa_stream_t *s, const sa_channel_t map[], unsigned int n))
+UNSUPPORTED(int sa_stream_set_xrun_mode(sa_stream_t *s, sa_xrun_mode_t mode))
+UNSUPPORTED(int sa_stream_set_non_interleaved(sa_stream_t *s, int enable))
+UNSUPPORTED(int sa_stream_set_dynamic_rate(sa_stream_t *s, int enable))
+UNSUPPORTED(int sa_stream_set_driver(sa_stream_t *s, const char *driver))
+UNSUPPORTED(int sa_stream_start_thread(sa_stream_t *s, sa_event_callback_t callback))
+UNSUPPORTED(int sa_stream_stop_thread(sa_stream_t *s))
+UNSUPPORTED(int sa_stream_change_device(sa_stream_t *s, const char *device_name))
+UNSUPPORTED(int sa_stream_change_read_volume(sa_stream_t *s, const int32_t vol[], unsigned int n))
+UNSUPPORTED(int sa_stream_change_write_volume(sa_stream_t *s, const int32_t vol[], unsigned int n))
+UNSUPPORTED(int sa_stream_change_rate(sa_stream_t *s, unsigned int rate))
+UNSUPPORTED(int sa_stream_change_meta_data(sa_stream_t *s, const char *name, const void *data, size_t size))
+UNSUPPORTED(int sa_stream_change_user_data(sa_stream_t *s, const void *value))
+UNSUPPORTED(int sa_stream_set_adjust_rate(sa_stream_t *s, sa_adjust_t direction))
+UNSUPPORTED(int sa_stream_set_adjust_nchannels(sa_stream_t *s, sa_adjust_t direction))
+UNSUPPORTED(int sa_stream_set_adjust_pcm_format(sa_stream_t *s, sa_adjust_t direction))
+UNSUPPORTED(int sa_stream_set_adjust_watermarks(sa_stream_t *s, sa_adjust_t direction))
+UNSUPPORTED(int sa_stream_get_mode(sa_stream_t *s, sa_mode_t *access_mode))
+UNSUPPORTED(int sa_stream_get_codec(sa_stream_t *s, char *codec, size_t *size))
+UNSUPPORTED(int sa_stream_get_pcm_format(sa_stream_t *s, sa_pcm_format_t *format))
+UNSUPPORTED(int sa_stream_get_rate(sa_stream_t *s, unsigned int *rate))
+UNSUPPORTED(int sa_stream_get_nchannels(sa_stream_t *s, int *nchannels))
+UNSUPPORTED(int sa_stream_get_user_data(sa_stream_t *s, void **value))
+UNSUPPORTED(int sa_stream_get_write_lower_watermark(sa_stream_t *s, size_t *size))
+UNSUPPORTED(int sa_stream_get_read_lower_watermark(sa_stream_t *s, size_t *size))
+UNSUPPORTED(int sa_stream_get_write_upper_watermark(sa_stream_t *s, size_t *size))
+UNSUPPORTED(int sa_stream_get_read_upper_watermark(sa_stream_t *s, size_t *size))
+UNSUPPORTED(int sa_stream_get_channel_map(sa_stream_t *s, sa_channel_t map[], unsigned int *n))
+UNSUPPORTED(int sa_stream_get_xrun_mode(sa_stream_t *s, sa_xrun_mode_t *mode))
+UNSUPPORTED(int sa_stream_get_non_interleaved(sa_stream_t *s, int *enabled))
+UNSUPPORTED(int sa_stream_get_dynamic_rate(sa_stream_t *s, int *enabled))
+UNSUPPORTED(int sa_stream_get_driver(sa_stream_t *s, char *driver_name, size_t *size))
+UNSUPPORTED(int sa_stream_get_device(sa_stream_t *s, char *device_name, size_t *size))
+UNSUPPORTED(int sa_stream_get_read_volume(sa_stream_t *s, int32_t vol[], unsigned int *n))
+UNSUPPORTED(int sa_stream_get_write_volume(sa_stream_t *s, int32_t vol[], unsigned int *n))
+UNSUPPORTED(int sa_stream_get_meta_data(sa_stream_t *s, const char *name, void*data, size_t *size))
+UNSUPPORTED(int sa_stream_get_adjust_rate(sa_stream_t *s, sa_adjust_t *direction))
+UNSUPPORTED(int sa_stream_get_adjust_nchannels(sa_stream_t *s, sa_adjust_t *direction))
+UNSUPPORTED(int sa_stream_get_adjust_pcm_format(sa_stream_t *s, sa_adjust_t *direction))
+UNSUPPORTED(int sa_stream_get_adjust_watermarks(sa_stream_t *s, sa_adjust_t *direction))
+UNSUPPORTED(int sa_stream_get_state(sa_stream_t *s, sa_state_t *state))
+UNSUPPORTED(int sa_stream_get_event_error(sa_stream_t *s, sa_error_t *error))
+UNSUPPORTED(int sa_stream_get_event_notify(sa_stream_t *s, sa_notify_t *notify))
+UNSUPPORTED(int sa_stream_read(sa_stream_t *s, void *data, size_t nbytes))
+UNSUPPORTED(int sa_stream_read_ni(sa_stream_t *s, unsigned int channel, void *data, size_t nbytes))
+UNSUPPORTED(int sa_stream_write_ni(sa_stream_t *s, unsigned int channel, const void *data, size_t nbytes))
+UNSUPPORTED(int sa_stream_pwrite(sa_stream_t *s, const void *data, size_t nbytes, int64_t offset, sa_seek_t whence))
+UNSUPPORTED(int sa_stream_pwrite_ni(sa_stream_t *s, unsigned int channel, const void *data, size_t nbytes, int64_t offset, sa_seek_t whence))
+UNSUPPORTED(int sa_stream_get_read_size(sa_stream_t *s, size_t *size))
+UNSUPPORTED(int sa_stream_drain(sa_stream_t *s))
+
+const char *sa_strerror(int code) { return NULL; }
+