ecore_audio: Add alsa support

This is not well tested and thus disabled by default

Signed-off-by: Daniel Willmann <d.willmann@samsung.com>

configure.ac

@@ -2461,8 +2461,19 @@ EFL_LIB_START_OPTIONAL([Ecore_Audio], [test "${want_audio}" = "yes"])
 
 ### Additional options to configure
 
-# ALSA support is still not there, thus no option for it yet.
-want_alsa="no"
+# ALSA support is not well tested, disable by default
+AC_ARG_ENABLE([alsa],
+   [AC_HELP_STRING([--enable-alsa],
+       [enable alsa sound support. @<:@default=enabled@:>@])],
+   [
+    if test "x${enableval}" = "xyes" ; then
+       want_alsa="yes"
+    else
+       want_alsa="no"
+    fi
+   ],
+   [want_alsa="no"])
+
 
 # sndfile is mandatory otherwise it won't read from/write to files.
 # TODO: if confirmed sndfile is mandatory, remove this variable
@@ -2520,6 +2531,7 @@ EFL_ADD_FEATURE([ECORE_AUDIO], [sndfile])
 ### Checks for library functions
 
 EFL_LIB_END_OPTIONAL([Ecore_Audio])
+AM_CONDITIONAL([HAVE_ECORE_AUDIO_ALSA], [test "x${want_alsa}" = "xyes"])
 AM_CONDITIONAL([HAVE_ECORE_AUDIO_PULSE], [test "x${want_pulseaudio}" = "xyes"])
 AM_CONDITIONAL([HAVE_ECORE_AUDIO_SNDFILE], [test "x${want_sndfile}" = "xyes"])
 

src/Makefile_Ecore_Audio.am

@@ -27,6 +27,14 @@ lib_ecore_audio_libecore_audio_la_LIBADD = @ECORE_AUDIO_LIBS@
 lib_ecore_audio_libecore_audio_la_DEPENDENCIES = @ECORE_AUDIO_INTERNAL_LIBS@
 lib_ecore_audio_libecore_audio_la_LDFLAGS = @EFL_LTLIBRARY_FLAGS@
 
+if HAVE_ECORE_AUDIO_ALSA
+dist_installed_ecoreaudiomainheaders_DATA += \
+lib/ecore_audio/ecore_audio_obj_out_alsa.h
+
+lib_ecore_audio_libecore_audio_la_SOURCES += \
+lib/ecore_audio/ecore_audio_obj_out_alsa.c
+endif
+
 if HAVE_ECORE_AUDIO_PULSE
 dist_installed_ecoreaudiomainheaders_DATA += \
 lib/ecore_audio/ecore_audio_obj_out_pulse.h

src/lib/ecore_audio/Ecore_Audio.h

@@ -212,6 +212,8 @@ EAPI int                 ecore_audio_shutdown(void);
 
 #include <ecore_audio_obj_out_pulse.h>
 
+#include <ecore_audio_obj_out_alsa.h>
+
 /**
  * @}
  */

src/lib/ecore_audio/ecore_audio_private.h

@@ -146,14 +146,6 @@ extern Eina_List *ecore_audio_modules;
 
 #ifdef HAVE_ALSA
 /* ecore_audio_alsa */
-struct _Ecore_Audio_Alsa
-{
-   ECORE_MAGIC;
-   snd_pcm_t   *handle;
-   unsigned int channels;
-   unsigned int samplerate;
-};
-
 Ecore_Audio_Module *ecore_audio_alsa_init(void);
 void                ecore_audio_alsa_shutdown(void);
 #endif /* HAVE_ALSA */