emotion: remove all left overs from removed backends

We removed them in the last release. Make sure we cleanup all the
references and dead code still belonging to it.

Extra note on the Emotion_Module enum removal. While it was exposed in
the public Emotion.h header it is never used anywhere in the code and
has no purpose, thus it can safely be removed.

Reviewed-by: Carsten Haitzler (Rasterman) <raster@rasterman.com>
Differential Revision: https://phab.enlightenment.org/D11941

src/edje_external/emotion/emotion.c

@@ -51,25 +51,15 @@ static int _log_dom = -1;
 #define DBG(...) EINA_LOG_DOM_DBG(_log_dom, __VA_ARGS__)
 
 static const char *_external_emotion_engines[] = {
-#ifdef EMOTION_BUILD_XINE
-  "xine",
-#endif
-#ifdef EMOTION_BUILD_GSTREAMER
-  "gstreamer",
-#endif
-#ifdef EMOTION_BUILD_GENERIC
-  "generic",
+#if EMOTION_BUILD_GSTREAMER1
+  "gstreamer1",
 #endif
   NULL,
 };
 
 static const char _external_emotion_engine_def[] =
-#if  defined(EMOTION_BUILD_XINE)
-  "xine";
-#elif defined(EMOTION_BUILD_GSTREAMER)
-  "gstreamer";
-#elif defined(EMOTION_BUILD_GENERIC)
-  "generic";
+#if defined(EMOTION_BUILD_GSTREAMER1)
+  "gstreamer1";
 #else
   "impossible";
 #endif

src/lib/emotion/Emotion.h

@@ -26,8 +26,7 @@
  *
  * A media object library for Evas and Ecore.
  *
- * Emotion is a library that allows playing audio and video files, using one of
- * its backends (gstreamer, xine or generic shm player).
+ * Emotion is a library that allows playing audio and video files.
  *
  * It is integrated into Ecore through its mainloop, and is transparent to the
  * user of the library how the decoding of audio and video is being done. Once
@@ -135,12 +134,6 @@ extern "C" {
  *        play, seek, change volume, etc.
  */
 
-enum _Emotion_Module
-{
-  EMOTION_MODULE_XINE,
-  EMOTION_MODULE_GSTREAMER
-};
-
 enum _Emotion_Event
 {
    EMOTION_EVENT_MENU1, // Escape Menu
@@ -265,7 +258,6 @@ enum _Emotion_Aspect
   EMOTION_ASPECT_CUSTOM, /**< use custom borders/crop for the video */
 };
 
-typedef enum _Emotion_Module    Emotion_Module;
 typedef enum _Emotion_Event     Emotion_Event;
 typedef enum _Emotion_Meta_Info Emotion_Meta_Info; /**< Meta info type to be retrieved. */
 typedef enum _Emotion_Vis       Emotion_Vis; /**< Type of visualization. */

src/lib/emotion/emotion_modules.c

@@ -11,22 +11,10 @@
 #include "../../static_libs/buildsystem/buildsystem.h"
 #include <unistd.h>
 
-#ifdef EMOTION_STATIC_BUILD_XINE
-Eina_Bool xine_module_init(void);
-void      xine_module_shutdown(void);
-#endif
-#if defined(EMOTION_STATIC_BUILD_GSTREAMER) || defined(EMOTION_STATIC_BUILD_GSTREAMER1)
+#if defined(EMOTION_STATIC_BUILD_GSTREAMER1)
 Eina_Bool gstreamer_module_init(void);
 void      gstreamer_module_shutdown(void);
 #endif
-#ifdef EMOTION_STATIC_BUILD_LIBVLC
-Eina_Bool libvlc_module_init(void);
-void      libvlc_module_shutdown(void);
-#endif
-#ifdef EMOTION_STATIC_BUILD_GENERIC
-Eina_Bool generic_module_init(void);
-void      generic_module_shutdown(void);
-#endif
 
 typedef struct _Emotion_Engine_Registry_Entry
 {
@@ -81,15 +69,7 @@ _emotion_modules_load(void)
              if (stat(buf, &st) == 0)
                {
                   const char *built_modules[] = {
-#ifdef EMOTION_BUILD_GSTREAMER1
                      "gstreamer1",
-#endif
-#ifdef EMOTION_BUILD_XINE
-                     "xine",
-#endif
-#ifdef EMOTION_BUILD_LIBVLC
-                     "libvlc",
-#endif
                      NULL
                   };
                   const char **itr;
@@ -128,18 +108,9 @@ _emotion_modules_load(void)
 Eina_Bool
 emotion_modules_init(void)
 {
-#ifdef EMOTION_STATIC_BUILD_XINE
-   xine_module_init();
-#endif
-#if defined(EMOTION_STATIC_BUILD_GSTREAMER) || defined(EMOTION_STATIC_BUILD_GSTREAMER1)
+#if defined(EMOTION_STATIC_BUILD_GSTREAMER1)
    gstreamer_module_init();
 #endif
-#ifdef EMOTION_STATIC_BUILD_LIBVLC
-   libvlc_module_init();
-#endif
-#ifdef EMOTION_STATIC_BUILD_GENERIC
-   generic_module_init();
-#endif
 
    return EINA_TRUE;
 }
@@ -149,18 +120,9 @@ emotion_modules_shutdown(void)
 {
    Emotion_Engine_Registry_Entry *re;
 
-#ifdef EMOTION_STATIC_BUILD_XINE
-   xine_module_shutdown();
-#endif
-#if defined(EMOTION_STATIC_BUILD_GSTREAMER) || defined(EMOTION_STATIC_BUILD_GSTREAMER1)
+#if defined(EMOTION_STATIC_BUILD_GSTREAMER1)
    gstreamer_module_shutdown();
 #endif
-#ifdef EMOTION_STATIC_BUILD_LIBVLC
-   libvlc_module_shutdown();
-#endif
-#ifdef EMOTION_STATIC_BUILD_GENERIC
-   generic_module_shutdown();
-#endif
 
    if (_emotion_modules)
      {
@@ -403,11 +365,7 @@ emotion_engine_instance_new(const char *name, Evas_Object *obj, Emotion_Module_O
 
    if (!_emotion_engine_registry)
      {
-        m = _find_mod("generic");
-        if (!m) m = _find_mod("xine");
-        if (!m) m = _find_mod("gstreamer");
-        if (!m) m = _find_mod("gstreamer1");
-        if (!m) m = _find_mod("libvlc");
+        m = _find_mod("gstreamer1");
         if (!eina_module_load(m))
           ERR("Cannot load module %s", eina_module_file_get(m));
      }