[retro-gtk] retro-gobject: Remove unused audio callback interface

[Adrien Plazas <aplazas src gnome org>]

commit c5ec6cec6be15623da904549ab3957fd9393a9cf
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu Jan 19 10:10:19 2017 +0100

    retro-gobject: Remove unused audio callback interface
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777482

 retro-gobject/audio.vala          |   52 -------------------------------------
 retro-gobject/core.vala           |    7 -----
 retro-gobject/retro-environment.c |   10 +------
 3 files changed, 1 insertions(+), 68 deletions(-)
---
diff --git a/retro-gobject/audio.vala b/retro-gobject/audio.vala
index a739740..616f2c6 100644
--- a/retro-gobject/audio.vala
+++ b/retro-gobject/audio.vala
@@ -32,58 +32,6 @@ public interface Audio : Object {
         * @return FIXME
         */
        public abstract size_t play_batch (int16[] data, size_t frames);
-
-       /**
-        * Notifies the {@link core} that it can play audio.
-        *
-        * Used by {@link core} where audio can be asynchronous to let the
-        * frontend ask for audio to play. The audio data will then be sent via
-        * the usual methods.
-        *
-        * @throws CbError the {@link core} or its callback couldn't be found
-        */
-       public void audio_request () throws CbError {
-               if (core == null)
-                       throw new CbError.NO_CORE ("No core");
-
-               if (core.audio_callback == null)
-                       throw new CbError.NO_CALLBACK ("No audio callback");
-
-               core.audio_callback.callback ();
-       }
-
-       /**
-        * Notifies the {@link core} that the frontend can ask for audio to be
-        * played.
-        *
-        * It must be set to true before calling {@link audio_request}, and
-        * it must be set to false one the audio player don't want to request
-        * for audio anymore.
-        *
-        * @param enabled //true// to let frontend send audio requests, //false//
-        * otherwise
-        * @throws CbError the {@link core} or its callback couldn't be found
-        */
-       public void can_request_audio (bool enabled) throws CbError {
-               if (core == null)
-                       throw new CbError.NO_CORE ("No core");
-
-               if (core.audio_callback == null)
-                       throw new CbError.NO_CALLBACK ("No audio callback");
-
-               core.audio_callback.set_state (enabled);
-       }
-}
-
-[CCode (has_target = false)]
-private delegate void AudioCallbackCallback ();
-
-[CCode (has_target = false)]
-private delegate void AudioCallbackSetState (bool enabled);
-
-private struct AudioCallback {
-       AudioCallbackCallback callback;
-       AudioCallbackSetState set_state;
 }
 
 }
diff --git a/retro-gobject/core.vala b/retro-gobject/core.vala
index e6032d0..1e5dcc4 100644
--- a/retro-gobject/core.vala
+++ b/retro-gobject/core.vala
@@ -175,13 +175,6 @@ public class Core : Object {
        public DiskControl disk_control_interface { internal set; get; }
 
        /**
-        * The audio callback interface.
-        *
-        * The Core can set it to let the frontend pass audio to it.
-        */
-       internal AudioCallback? audio_callback { set; get; }
-
-       /**
         * The time input interface.
         *
         * The Core can set it to let the frontend inform it of the amount
diff --git a/retro-gobject/retro-environment.c b/retro-gobject/retro-environment.c
index e562393..4a2600c 100644
--- a/retro-gobject/retro-environment.c
+++ b/retro-gobject/retro-environment.c
@@ -471,12 +471,6 @@ static gboolean get_variable_update (RetroVariables *self, gboolean *update) {
        return TRUE;
 }
 
-static gboolean set_audio_callback (RetroCore *self, RetroAudioCallback *callback) {
-       retro_core_set_audio_callback (self, callback);
-
-       return TRUE;
-}
-
 static gboolean set_disk_control_interface (RetroCore *self, RetroDiskControlCallback *callback) {
        retro_core_set_disk_control_interface (self, RETRO_DISK_CONTROL (retro_disk_control_new (self, 
callback)));
 
@@ -566,9 +560,6 @@ static gboolean environment_core_command (RetroCore *self, unsigned cmd, gpointe
        case RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY:
                return get_system_directory (self, (const gchar* *) data);
 
-       case RETRO_ENVIRONMENT_SET_AUDIO_CALLBACK:
-               return set_audio_callback (self, (RetroAudioCallback *) data);
-
        case RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE:
                set_disk_control_interface (self, (RetroDiskControlCallback *) data);
 
@@ -592,6 +583,7 @@ static gboolean environment_core_command (RetroCore *self, unsigned cmd, gpointe
 
        case RETRO_ENVIRONMENT_GET_LANGUAGE:
        case RETRO_ENVIRONMENT_GET_USERNAME:
+       case RETRO_ENVIRONMENT_SET_AUDIO_CALLBACK:
        case RETRO_ENVIRONMENT_SET_CONTROLLER_INFO:
        case RETRO_ENVIRONMENT_SET_GEOMETRY:
        case RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK: