GNOME.org
 

[gcompris] Added support for SDL Mixer audio backend.

commit 8963c5226c86c5b500f9cdf0638c1cec9b52a592
Author: Bruno Coudoin <bruno coudoin free fr>
Date:   Sat Jul 18 01:34:17 2009 +0200

    Added support for SDL Mixer audio backend.
    The code is taken from the GCOMPRIS 8_3 branch.
    Now at compilation time we can select the SDL backend or the
    gstreamer one.

 configure.in                 |    1 +
 src/gcompris/Makefile.am     |    5 +-
 src/gcompris/gstreamer.c     |   19 +--
 src/gcompris/sdlplayer.c     |  222 +++++++++++++++++++++++
 src/gcompris/soundutil.c     |   15 ++
 src/gcompris/soundutil_sdl.c |  405 ++++++++++++++++++++++++++++++++++++++++++
 src/gcompris/soundutil_sdl.h |   99 ++++++++++
 7 files changed, 751 insertions(+), 15 deletions(-)
---
diff --git a/configure.in b/configure.in
index 91e0f98..a66b932 100644
--- a/configure.in
+++ b/configure.in
@@ -373,6 +373,7 @@ AC_MSG_RESULT($with_sdlmixer)
 if test x$with_sdlmixer = xyes; then
   PKG_CHECK_MODULES(AUDIO, sdl,, AC_MSG_ERROR([*** SDL Mixer not found!]))
   AC_DEFINE([USE_SDLMIXER], 1,[sdl mixer is enabled])
+  AUDIO_LIBS="$AUDIO_LIBS -lSDL_mixer"
 else
   dnl Default is gstreamer
   PKG_CHECK_MODULES(AUDIO, gstreamer-0.10,, AC_MSG_ERROR([*** GSTREAMER not found!]))
diff --git a/src/gcompris/Makefile.am b/src/gcompris/Makefile.am
index 4d4b1bc..f0f1305 100644
--- a/src/gcompris/Makefile.am
+++ b/src/gcompris/Makefile.am
@@ -54,8 +54,8 @@ INCLUDES = \
 	-DGNOME_DISABLE_DEPRECATED \
         $(sqlite_cflags) \
 	$(GNET_CFLAGS) \
-	$(cairo_cflags) \
 	$(AUDIO_CFLAGS) \
+	$(cairo_cflags) \
 	$(NSBUNDLE_CPPFLAGS)
 
 gcompris_SOURCES = \
@@ -116,6 +116,9 @@ gcompris_SOURCES = \
 	soundutil.c \
 	soundutil.h \
 	gstreamer.c \
+	soundutil_sdl.c \
+	soundutil_sdl.h \
+	sdlplayer.c \
 	timer.c \
 	timer.h \
 	wordlist.c \
diff --git a/src/gcompris/gstreamer.c b/src/gcompris/gstreamer.c
index a904bea..01cce7b 100644
--- a/src/gcompris/gstreamer.c
+++ b/src/gcompris/gstreamer.c
@@ -16,6 +16,10 @@
  *   along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
+
+#ifdef USE_GSTREAMER
+
 #include "string.h"
 
 #include "gcompris.h"
@@ -87,13 +91,6 @@ bg_bus(GstBus* bus, GstMessage* msg, gpointer data)
 }
 
 void
-gc_sound_close()
-{
-  gc_sound_bg_close();
-  gc_sound_fx_close();
-}
-
-void
 gc_sound_bg_close()
 {
   if (bg_pipeline)
@@ -130,13 +127,6 @@ gc_sound_fx_reopen()
 }
 
 void
-gc_sound_reopen()
-{
-  gc_sound_bg_reopen();
-  gc_sound_fx_reopen();
-}
-
-void
 gc_sound_bg_pause()
 {
   if (bg_pipeline)
@@ -267,3 +257,4 @@ fx_play()
   return;
 }
 
+#endif // USE_GSTREAMER
diff --git a/src/gcompris/sdlplayer.c b/src/gcompris/sdlplayer.c
new file mode 100644
index 0000000..d346fc3
--- /dev/null
+++ b/src/gcompris/sdlplayer.c
@@ -0,0 +1,222 @@
+/* sdlplayer - sdlplayer.c
+ *
+ * Copyright (C) 2004 Bruno Coudoin
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#ifdef USE_SDLMIXER
+
+#include "soundutil.h"
+
+#ifndef SDL_FRAMEWORKS
+#include "SDL.h"
+#include "SDL_thread.h"
+#include "SDL_mixer.h"
+#include "SDL_audio.h"
+#else
+/* we use SDL and SDL_mixer framework */
+#include <SDL/SDL.h>
+#include <SDL/SDL_thread.h>
+#include <SDL_mixer/SDL_mixer.h>
+#include <SDL/SDL_audio.h>
+#endif
+
+#include <stdarg.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <glib.h>
+
+Sint16 stream[2][4096];
+int len=4096, bits=0, which=0;
+
+// set this to any of 512,1024,2048,4096
+// the higher it is, the more FPS shown and CPU needed
+#define AUDIO_BUFFERS 2048
+
+static gboolean sound_closed = FALSE;
+
+/******************************************************************************/
+/* some simple exit and error routines                                        */
+
+void errorv(char *str, va_list ap)
+{
+  //vfprintf(stderr,str,ap);
+
+  if(strcmp(Mix_GetError(), "Unrecognized file type (not VOC)")==0) {
+    g_warning("*** You need a version of \"SDL_mixer\" with OGG Vorbis supported ***\n");
+    exit(EXIT_FAILURE);
+  }
+
+  g_warning(": %s.\n", Mix_GetError());
+  g_warning(": %s.\n", SDL_GetError());
+
+}
+
+int cleanExit(char *str,...)
+{
+  va_list ap;
+  va_start(ap, str);
+  errorv(str,ap);
+  va_end(ap);
+  Mix_CloseAudio();
+  SDL_Quit();
+  return(1);
+}
+
+/******************************************************************************/
+
+int sdlplayer_init()
+{
+  int audio_rate,audio_channels;
+  Uint16 audio_format;
+
+  // initialize SDL for audio
+  if(SDL_Init(SDL_INIT_AUDIO)<0)
+    return(cleanExit("SDL_Init"));
+
+  // initialize sdl mixer, open up the audio device
+  if(Mix_OpenAudio(44100,MIX_DEFAULT_FORMAT,2,AUDIO_BUFFERS)<0)
+    return(cleanExit("Mix_OpenAudio"));
+
+  // print out some info on the audio device and stream
+  Mix_QuerySpec(&audio_rate, &audio_format, &audio_channels);
+  bits=audio_format&0xFF;
+  g_warning("Opened audio at %d Hz %d bit %s, %d bytes audio buffer\n", audio_rate,
+	    bits, audio_channels>1?"stereo":"mono", AUDIO_BUFFERS );
+  return(0);
+}
+
+int sdlplayer_quit(Mix_Music *music)
+{
+  // free & close
+  Mix_FreeMusic(music);
+  Mix_CloseAudio();
+  g_warning("SDL PLAYER SDL_Quit\n");
+  SDL_Quit();
+
+  return 0;
+}
+
+int sdlplayer_music(char *filename, int volume)
+{
+  Mix_Music *music;
+
+  g_warning("sdlplayer_bg %s\n", filename);
+
+  // load the song
+  if(!(music=Mix_LoadMUS(filename)))
+    return(cleanExit("Mix_LoadMUS(\"%s\")",filename));
+
+  if(Mix_PlayMusic(music, 1)==-1) {
+    return(cleanExit("Mix_LoadMUS(0x%p,1)",music));
+  }
+
+  Mix_VolumeMusic(volume);
+
+  // wait for the music to complete
+  while(Mix_PlayingMusic() || Mix_PausedMusic())
+    {
+      SDL_Delay(50);
+    }
+
+  return(0);
+}
+
+int sdlplayer_fx(char *filename, int volume)
+{
+  Mix_Chunk *sample;
+  static int channel;
+
+  g_warning("sdlplayer %s\n", filename);
+
+  sample=Mix_LoadWAV_RW(SDL_RWFromFile(filename, "rb"), 1);
+  if(!sample) {
+    return(cleanExit("Mix_LoadWAV_RW"));
+    // handle error
+  }
+
+  Mix_VolumeChunk(sample, MIX_MAX_VOLUME);
+
+  if((channel=Mix_PlayChannel(-1, sample, 0))==-1) {
+    return(cleanExit("Mix_LoadChannel(0x%p,1)",channel));
+  }
+
+  while(Mix_Playing(channel))
+    {
+      SDL_Delay(50);
+    }
+
+  // free the sample
+  // Mix_Chunk *sample;
+  Mix_FreeChunk(sample);
+
+  g_warning("sdlplayer complete playing of %s\n", filename);
+
+  return(0);
+}
+
+void sdlplayer_pause_music()
+{
+  if(!sound_closed && Mix_PlayingMusic())
+    Mix_PauseMusic();
+}
+
+void sdlplayer_halt_music()
+{
+  if(!sound_closed)
+    Mix_HaltMusic();
+}
+
+void sdlplayer_halt_fx()
+{
+  if(!sound_closed)
+    Mix_HaltChannel(-1);
+}
+
+void sdlplayer_resume_music()
+{
+  if(!sound_closed)
+    Mix_ResumeMusic();
+}
+
+void sdlplayer_resume_fx()
+{
+  if(!sound_closed)
+    Mix_Resume(-1);
+}
+
+void sdlplayer_close()
+{
+  sound_closed = TRUE;
+  Mix_HaltMusic();
+  Mix_HaltChannel(-1);
+  Mix_CloseAudio();
+}
+
+void sdlplayer_reopen()
+{
+  Mix_OpenAudio(44100,MIX_DEFAULT_FORMAT,2,AUDIO_BUFFERS);
+  sound_closed = FALSE;
+  //Mix_ResumeMusic();
+  //Mix_Resume(-1);
+
+}
+
+#endif // USE_SDLMIXER
diff --git a/src/gcompris/soundutil.c b/src/gcompris/soundutil.c
index 38dd1cb..5041c97 100644
--- a/src/gcompris/soundutil.c
+++ b/src/gcompris/soundutil.c
@@ -54,6 +54,21 @@ gc_sound_policy_get()
   return sound_policy;
 }
 
+void
+gc_sound_close()
+{
+  gc_sound_bg_close();
+  gc_sound_fx_close();
+}
+
+
+void
+gc_sound_reopen()
+{
+  gc_sound_bg_reopen();
+  gc_sound_fx_reopen();
+}
+
 GSList *
 gc_sound_get_music_list()
 {
diff --git a/src/gcompris/soundutil_sdl.c b/src/gcompris/soundutil_sdl.c
new file mode 100644
index 0000000..9f55249
--- /dev/null
+++ b/src/gcompris/soundutil_sdl.c
@@ -0,0 +1,405 @@
+/* gcompris - soundutil.c
+ *
+ * Copyright (C) 2002 Pascal Georges
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#ifdef USE_SDLMIXER
+
+#include "string.h"
+
+#ifdef __APPLE__
+#   include <sys/types.h>
+#endif
+#include "gcompris.h"
+#include "soundutil_sdl.h"
+#include <signal.h>
+#include <glib.h>
+
+static int	 sound_policy;
+static gboolean	 music_paused = FALSE;
+static gboolean	 sound_closed = FALSE;
+
+/* mutex */
+GMutex		*lock = NULL;
+GMutex		*lock_music = NULL;
+GMutex		*lock_fx = NULL;
+GCond		*cond = NULL;
+
+/* Singleton */
+static guint	 sound_init = 0;
+
+/* Forward function declarations */
+GThread		*thread_scheduler_fx, *thread_scheduler_music;
+
+static void	*thread_play_ogg (gchar *file);
+
+static gpointer  scheduler_fx (gpointer user_data);
+static gpointer  scheduler_music (gpointer user_data);
+
+/* sound control */
+GObject *gc_sound_controller = NULL;
+void gc_sound_callback_sdl(GcomprisSound *ctl,
+			   gchar *file, gpointer user_data);
+
+/* =====================================================================
+ *
+ * =====================================================================*/
+void
+gc_sound_init()
+{
+
+  /* Check to run the init once only */
+  if(sound_init == 1)
+    {
+      if(sound_closed == TRUE)
+	gc_sound_reopen();
+
+	  return;
+    }
+  sound_init = 1;
+
+  gc_sound_controller = g_object_new (GCOMPRIS_SOUND_TYPE, NULL);
+
+  g_signal_connect( gc_sound_controller,
+		    "sound-played",
+		    (GCallback) gc_sound_callback_sdl,
+		    NULL);
+
+  g_assert( gc_sound_controller != NULL );
+
+  /* Initialize the thread system */
+  if (!g_thread_supported ()) g_thread_init (NULL);
+
+  lock = g_mutex_new ();
+  lock_music = g_mutex_new ();
+  lock_fx = g_mutex_new ();
+  cond = g_cond_new ();
+
+  sound_policy = PLAY_AFTER_CURRENT;
+
+  if(sdlplayer_init()!=0) {
+    /* Sound init failed. Desactivate the sound */
+    gc_prop_get()->music = 0;
+    gc_prop_get()->fx    = 0;
+    return;
+  }
+
+  thread_scheduler_fx = g_thread_create((GThreadFunc)scheduler_fx, NULL, FALSE, NULL);
+  if (thread_scheduler_fx == NULL)
+    perror("create failed for fx scheduler");
+
+  thread_scheduler_music = g_thread_create((GThreadFunc)scheduler_music, NULL, FALSE, NULL);
+  if (thread_scheduler_music == NULL)
+    perror("create failed for music scheduler");
+
+}
+
+void
+gc_sound_bg_close()
+{
+  if ( !sound_closed )
+    {
+      sound_closed = TRUE;
+      if ( music_paused ) {
+         music_paused = FALSE;
+	gc_sound_bg_resume();
+         }
+      g_mutex_lock(lock_fx);
+      sdlplayer_halt_music();
+      sdlplayer_halt_fx();
+      g_mutex_lock(lock_music);
+      sdlplayer_close();
+    }
+}
+
+void
+gc_sound_fx_close()
+{
+}
+
+void
+gc_sound_fx_reopen()
+{
+  if (gc_prop_get()->fx || gc_prop_get()->music) {
+    if (sound_closed)
+      {
+	sdlplayer_reopen();
+	g_mutex_unlock(lock_fx);
+	g_mutex_unlock(lock_music);
+	sound_closed = FALSE;
+	music_paused = FALSE;
+      }
+  }
+}
+
+void
+gc_sound_bg_reopen()
+{
+}
+
+void
+gc_sound_bg_pause()
+{
+  sdlplayer_pause_music();
+  music_paused = TRUE;
+}
+
+void
+gc_sound_bg_resume()
+{
+  sdlplayer_resume_music();
+  music_paused = FALSE;
+}
+
+void
+gc_sound_fx_pause()
+{
+}
+
+void
+gc_sound_fx_resume()
+{
+}
+
+/* =====================================================================
+ * Thread scheduler background :
+ *	- launches a single thread for playing and play any file found
+ *        in the gcompris music directory
+ ======================================================================*/
+static gpointer
+scheduler_music (gpointer user_data)
+{
+  GcomprisProperties *properties = gc_prop_get();
+  gint i;
+  gchar *str;
+  gchar *music_dir;
+  GSList *musiclist = NULL;
+  GDir *dir;
+  const gchar *one_dirent;
+
+  /* Sleep to let gcompris intialisation and intro music to complete */
+  g_usleep(25000000);
+
+  /* Load the Music directory file names */
+  music_dir = g_strconcat(properties->package_data_dir, "/music/background", NULL);
+
+  dir = g_dir_open(music_dir, 0, NULL);
+
+  if (!dir) {
+    g_warning ("Couldn't open music dir: %s", music_dir);
+    g_free(music_dir);
+    return NULL;
+  }
+
+  /* Fill up the music list */
+  while((one_dirent = g_dir_read_name(dir)) != NULL)
+    {
+      if (g_str_has_suffix(one_dirent, ".ogg"))
+	{
+	  str = g_strdup_printf("%s/%s", music_dir, one_dirent);
+	  musiclist = g_slist_insert (musiclist, str, RAND(0, g_slist_length(musiclist)));
+	}
+    }
+  g_dir_close(dir);
+
+  /* No music no play */
+  if(g_slist_length(musiclist)==0)
+    {
+      g_free(music_dir);
+      return NULL;
+    }
+
+  /* Now loop over all our music files */
+  while (TRUE)
+    {
+      for(i=0; i<g_slist_length(musiclist); i++)
+	{
+	  /* Music can be disabled at any time */
+	  while(!gc_prop_get()->music || music_paused || sound_closed)
+	    g_usleep(1000000);
+
+	  /* WARNING Displaying stuff in a thread seems to make gcompris unstable */
+	  /*	  display_ogg_file_credits((char *)g_list_nth_data(musiclist, i)); */
+	  //	  if(decode_ogg_file((char *)g_list_nth_data(musiclist, i))!=0)
+	  g_mutex_lock(lock_music);
+	  if(sdlplayer_music((char *)g_slist_nth_data(musiclist, i), 128)!=0){
+	    g_warning("sdlplayer_music failed, try again in 5 seconds");
+	    g_usleep(5000000);
+	  }
+	  g_mutex_unlock(lock_music);
+
+	}
+    }
+
+  /* Never happen */
+  g_slist_free(musiclist);
+  g_warning( "The background thread music is stopped now. "\
+	     "The files in %s are not ogg vorbis OR the sound output failed",
+	     music_dir);
+  g_free(music_dir);
+  return NULL;
+}
+
+/* =====================================================================
+ * Thread scheduler :
+ *	- launches a single thread for playing a file
+ *	- joins the previous thread at its end
+ *	-	then launches another thread if some sounds are pending
+ *	-	the thread never ends
+ ======================================================================*/
+static gpointer
+scheduler_fx (gpointer user_data)
+{
+  char *sound = NULL;
+
+  while (TRUE)
+    {
+      if ( ( sound = get_next_sound_to_play( ) ) != NULL )
+	{
+	  thread_play_ogg(sound);
+	  g_free(sound);
+	}
+      else
+	{
+	  g_mutex_lock (lock);
+	  g_cond_wait (cond, lock);
+	  g_mutex_unlock (lock);
+	}
+    }
+  return NULL;
+}
+
+
+/* =====================================================================
+ * Thread function for playing a single file
+ ======================================================================*/
+static void*
+thread_play_ogg (gchar *file)
+{
+  gchar *absolute_file;
+
+  g_warning("  Thread_play_ogg %s", file);
+
+  absolute_file = gc_file_find_absolute(file);
+
+  if (!absolute_file)
+    return NULL;
+
+  g_warning("   Calling gcompris internal sdlplayer_file (%s)", absolute_file);
+  g_mutex_lock(lock_fx);
+  sdlplayer_fx(absolute_file, 128);
+  g_mutex_unlock(lock_fx);
+  g_signal_emit (gc_sound_controller,
+		 GCOMPRIS_SOUND_GET_CLASS (gc_sound_controller)->sound_played_signal_id,
+		 0 /* details */,
+		 g_strdup(file));
+  g_warning("  sdlplayer_fx(%s) ended.", absolute_file);
+
+  g_free(absolute_file);
+
+  return NULL;
+}
+
+void
+fx_play()
+{
+  // Tell the scheduler to check for new sounds to play
+  g_warning("Tell the scheduler to check for new sounds to play\n");
+  g_cond_signal (cond);
+}
+
+void gc_sound_callback_sdl(GcomprisSound *ctl,
+			   gchar *file, gpointer user_data)
+{
+  gc_sound_callback(file);
+}
+
+/*************************************/
+/* GObject control sound             */
+struct _GcomprisSoundPrivate
+{
+};
+
+/* "gcompris-marshal.h" */
+
+#include	<glib-object.h>
+
+/* VOID:POINTER (gcompris-marshal.list:3) */
+#define gnome_canvas_marshal_VOID__POINTER	g_cclosure_marshal_VOID__POINTER
+
+static void
+gc_sound_instance_init (GTypeInstance   *instance,
+			      gpointer         g_class)
+{
+        GcomprisSound *self = (GcomprisSound *)instance;
+        self->private = g_new (GcomprisSoundPrivate, 1);
+}
+
+static void
+default_sound_played_signal_handler (GcomprisSound *obj, gchar *file, gpointer user_data)
+{
+        /* Here, we trigger the real file write. */
+        g_warning ("sound_played: %s\n", file);
+}
+
+static void
+gc_sound_class_init (gpointer g_class,
+			   gpointer g_class_data)
+{
+        GcomprisSoundClass *klass = GCOMPRIS_SOUND_CLASS (g_class);
+
+	klass->sound_played = default_sound_played_signal_handler;
+
+        klass->sound_played_signal_id =
+                g_signal_new ("sound-played",
+			      G_TYPE_FROM_CLASS (g_class),
+			      G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS,
+			      G_STRUCT_OFFSET (GcomprisSoundClass, sound_played),
+			      NULL /* accumulator */,
+			      NULL /* accu_data */,
+			      gnome_canvas_marshal_VOID__POINTER,
+			      G_TYPE_NONE /* return_type */,
+			      1     /* n_params */,
+			      G_TYPE_POINTER  /* param_types */);
+
+}
+
+GType gc_sound_get_type (void)
+{
+        static GType type = 0;
+        if (type == 0) {
+                static const GTypeInfo info = {
+                        sizeof (GcomprisSoundClass),
+                        NULL,   /* base_init */
+                        NULL,   /* base_finalize */
+                        gc_sound_class_init,   /* class_init */
+                        NULL,   /* class_finalize */
+                        NULL,   /* class_data */
+                        sizeof (GcomprisSound),
+                        0,      /* n_preallocs */
+                        gc_sound_instance_init    /* instance_init */
+                };
+                type = g_type_register_static (G_TYPE_OBJECT,
+                                               "GcomprisSoundType",
+                                               &info, 0);
+        }
+        return type;
+}
+
+#endif
+
diff --git a/src/gcompris/soundutil_sdl.h b/src/gcompris/soundutil_sdl.h
new file mode 100644
index 0000000..9f0286a
--- /dev/null
+++ b/src/gcompris/soundutil_sdl.h
@@ -0,0 +1,99 @@
+/* gcompris - gameutil.h
+ *
+ * Copyright (C) 2000 Bruno Coudoin
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#ifdef USE_SDLMIXER
+
+#ifndef SOUNDUTIL_SDL_H
+#define SOUNDUTIL_SDL_H
+
+#include <stdio.h>
+#include "gcompris.h"
+
+#define MAX_QUEUE_LENGTH 5
+#define MAX_SOUND_FILES 20
+
+int	 decode_ogg_file(char *infile);
+void	 display_ao_devices();
+
+/*
+ * SDL PLAYER
+ */
+int	 sdlplayer_init();
+void	 sdlplayer_close();
+void	 sdlplayer_reopen();
+
+int	 sdlplayer_music(char *filename, int volume);
+void	 sdlplayer_halt_music();
+void	 sdlplayer_pause_music();
+void	 sdlplayer_resume_music();
+
+void	 sdlplayer_halt_fx();
+void	 sdlplayer_resume_fx();
+int	 sdlplayer_fx(char *filename, int volume);
+
+gchar *gc_sound_alphabet(gchar *chars);
+
+
+/*************************************************************/
+/* GObject to  control sound. code get from maman-file.h     */
+/*************************************************************/
+/*
+ * Potentially, include other headers on which this header depends.
+ */
+#include <glib-object.h>
+
+#define GCOMPRIS_SOUND_TYPE 	  (gc_sound_get_type ())
+#define GCOMPRIS_SOUND(obj)		  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GCOMPRIS_SOUND_TYPE, GcomprisSound))
+#define GCOMPRIS_SOUND_CLASS(klass)	  (G_TYPE_CHECK_CLASS_CAST ((klass), GCOMPRIS_SOUND_TYPE, GcomprisSoundClass))
+#define GCOMPRIS_SOUND_IS(obj)	  (G_TYPE_CHECK_INSTANCE_TYPE ((obj),  GCOMPRIS_SOUND_TYPE))
+#define GCOMPRIS_SOUND_IS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GCOMPRIS_SOUND_TYPE))
+#define GCOMPRIS_SOUND_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GCOMPRIS_SOUND_TYPE, GcomprisSoundClass))
+
+typedef struct _GcomprisSound GcomprisSound;
+typedef struct _GcomprisSoundClass GcomprisSoundClass;
+typedef struct _GcomprisSoundPrivate GcomprisSoundPrivate;
+
+struct _GcomprisSound {
+	GObject parent;
+	/* instance members */
+        GcomprisSoundPrivate *private;
+};
+
+struct _GcomprisSoundClass {
+	GObjectClass parent;
+
+        guint sound_played_signal_id;
+        void (*sound_played) (GcomprisSound *self, gchar *file, gpointer user_data);
+};
+
+/* used by MAMAN_TYPE_FILE */
+GType gc_sound_get_type (void);
+
+/* API. */
+
+/* empty for now */
+
+
+/* Declaration of GCompris Sound Controller */
+extern GObject *gc_sound_controller;
+
+#endif
+
+#endif //
[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]