Add "al_is_acodec_addon_initialized"

Author: MarkOates

addons/acodec/acodec.c

@@ -3,6 +3,11 @@
 #include "allegro5/internal/aintern_acodec_cfg.h"
 #include "acodec.h"
 
+
+/* globals */
+static bool acodec_inited = false;
+
+
 /* Function: al_get_allegro_acodec_version
  */
 uint32_t al_get_allegro_acodec_version(void)
@@ -61,8 +66,18 @@ bool al_init_acodec_addon(void)
    ret &= al_register_audio_stream_loader_f(".mp3", _al_load_mp3_audio_stream_f);
 #endif
 
+   acodec_inited = ret;
+
    return ret;
 }
 
 
+/* Function: al_is_acodec_addon_initialized
+ */
+bool al_is_acodec_addon_initialized(void)
+{
+   return acodec_inited;
+}
+
+
 /* vim: set sts=3 sw=3 et: */

addons/acodec/allegro5/allegro_acodec.h

@@ -30,6 +30,7 @@ extern "C" {
 
 
 ALLEGRO_ACODEC_FUNC(bool, al_init_acodec_addon, (void));
+ALLEGRO_ACODEC_FUNC(bool, al_is_acodec_addon_initialized, (void));
 ALLEGRO_ACODEC_FUNC(uint32_t, al_get_allegro_acodec_version, (void));
 
 

docs/src/refman/acodec.txt

@@ -32,6 +32,10 @@ streamed with [al_load_audio_stream] or [al_load_audio_stream_f].
 
 Return true on success.
 
+## API: al_is_acodec_addon_initialized
+
+Returns true if the acodec addon has been initialized, otherwise returns false.
+
 ## API: al_get_allegro_acodec_version
 
 Returns the (compiled) version of the addon, in the same format as