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create separated libatopology library with the topology routines

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2019-11-12 19:30:36 +01:00
parent 1f37ba2a2b
commit 75d393a563
7 changed files with 102 additions and 24 deletions
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2
utils/Makefile.am
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@ -6,7 +6,7 @@ EXTRA_DIST=alsa.m4 buildrpm alsa.pc.in
alsapkgconfdir = @ALSA_PKGCONF_DIR@
pkgconfigdir = $(alsapkgconfdir)
pkgconfig_DATA = alsa.pc
pkgconfig_DATA = alsa.pc alsa-topology.pc
rpm: buildrpm alsa-lib.spec
VERSION=$(VERSION) $(srcdir)/buildrpm

5
utils/alsa-topology.pc.in Normal file
View file

@ -0,0 +1,5 @@
Name: alsa-topology
Description: Advanced Linux Sound Architecture (ALSA) - Topology Library
Version: @VERSION@
Requires: alsa >= @VERSION@
Libs: -latopology

75
utils/alsa.m4
View file

@ -3,15 +3,19 @@ dnl Some modifications by Richard Boulton <richard-alsa@tartarus.org>
dnl Christopher Lansdown <lansdoct@cs.alfred.edu>
dnl Jaroslav Kysela <perex@perex.cz>
dnl Last modification: $Id: alsa.m4,v 1.24 2004/09/15 18:48:07 tiwai Exp $
dnl
dnl AM_PATH_ALSA([MINIMUM-VERSION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for libasound, and define ALSA_CFLAGS and ALSA_LIBS as appropriate.
dnl Test for libasound, and define ALSA_CFLAGS, ALSA_LIBS and
dnl ALSA_TOPOLOGY_LIBS as appropriate.
dnl
dnl enables arguments --with-alsa-prefix=
dnl --with-alsa-enc-prefix=
dnl --with-alsa-inc-prefix=
dnl --disable-alsatest
dnl
dnl For backwards compatibility, if ACTION_IF_NOT_FOUND is not specified,
dnl and the alsa libraries are not found, a fatal AC_MSG_ERROR() will result.
dnl
AC_DEFUN([AM_PATH_ALSA],
[dnl Save the original CFLAGS, LDFLAGS, and LIBS
alsa_save_CFLAGS="$CFLAGS"
@ -23,18 +27,22 @@ dnl
dnl Get the cflags and libraries for alsa
dnl
AC_ARG_WITH(alsa-prefix,
[ --with-alsa-prefix=PFX Prefix where Alsa library is installed(optional)],
[alsa_prefix="$withval"], [alsa_prefix=""])
AS_HELP_STRING([--with-alsa-prefix=PFX], [Prefix where Alsa library is installed(optional)]),
[alsa_prefix="$withval"], [alsa_prefix=""])
AC_ARG_WITH(alsa-inc-prefix,
[ --with-alsa-inc-prefix=PFX Prefix where include libraries are (optional)],
[alsa_inc_prefix="$withval"], [alsa_inc_prefix=""])
AS_HELP_STRING([--with-alsa-inc-prefix=PFX], [Prefix where include libraries are (optional)]),
[alsa_inc_prefix="$withval"], [alsa_inc_prefix=""])
AC_ARG_ENABLE(alsa-topology,
AS_HELP_STRING([--enable-alsatopology], [Force to use the Alsa topology library]),
[enable_atopology="$enableval"],
[enable_atopology=no])
dnl FIXME: this is not yet implemented
AC_ARG_ENABLE(alsatest,
[ --disable-alsatest Do not try to compile and run a test Alsa program],
[enable_alsatest="$enableval"],
[enable_alsatest=yes])
AS_HELP_STRING([--disable-alsatest], [Do not try to compile and run a test Alsa program]),
[enable_alsatest="$enableval"],
[enable_alsatest=yes])
dnl Add any special include directories
AC_MSG_CHECKING(for ALSA CFLAGS)
@ -60,8 +68,9 @@ AC_MSG_RESULT($ALSA_LIBS)
dnl Check for a working version of libasound that is of the right version.
if test "x$enable_alsatest" = "xyes"; then
min_alsa_version=ifelse([$1], ,0.1.1,$1)
AC_MSG_CHECKING(for libasound headers version >= $min_alsa_version)
AC_MSG_CHECKING([required libasound headers version])
min_alsa_version=ifelse([$1], , 0.1.1, $1)
no_alsa=""
alsa_min_major_version=`echo $min_alsa_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
@ -69,9 +78,11 @@ no_alsa=""
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
alsa_min_micro_version=`echo $min_alsa_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
AC_MSG_RESULT($alsa_min_major_version.$alsa_min_minor_version.$alsa_min_micro_version)
AC_LANG_SAVE
AC_LANG_C
AC_MSG_CHECKING([for libasound headers version >= $alsa_min_major_version.$alsa_min_minor_version.$alsa_min_micro_version ($min_alsa_version)])
AC_TRY_COMPILE([
#include <alsa/asoundlib.h>
], [
@ -113,6 +124,30 @@ exit(0);
alsa_found=no]
)
AC_LANG_RESTORE
AC_LANG_SAVE
AC_LANG_C
AC_MSG_CHECKING([for libatopology (sound headers version > 1.1.9)])
AC_TRY_COMPILE([
#include <alsa/asoundlib.h>
], [
/* ensure backward compatibility */
#if !defined(SND_LIB_VERSION)
#define SND_LIB_VERSION 0
#endif
#if SND_LIB_VERSION > 0x00010109
exit(0);
#else
# error not present
#endif
exit(0);
],
[AC_MSG_RESULT(yes)
enable_atopology="yes"],
[AC_MSG_RESULT(no)]
)
AC_LANG_RESTORE
fi
dnl Now that we know that we have the right version, let's see if we have the library and not just the headers.
@ -121,6 +156,12 @@ AC_CHECK_LIB([asound], [snd_ctl_open],,
[ifelse([$3], , [AC_MSG_ERROR(No linkable libasound was found.)])
alsa_found=no]
)
if test "x$enable_atopology" = "xyes"; then
AC_CHECK_LIB([atopology], [snd_tplg_new],,
[ifelse([$3], , [AC_MSG_ERROR(No linkable libatopology was found.)])
alsa_found=no]
)
fi
fi
if test "x$alsa_found" = "xyes" ; then
@ -136,10 +177,18 @@ if test "x$alsa_found" = "xno" ; then
LIBS="$alsa_save_LIBS"
ALSA_CFLAGS=""
ALSA_LIBS=""
ALSA_TOPOLOGY_LIBS=""
fi
dnl add the alsa topology library; must be at the end
AC_MSG_CHECKING(for ALSA topology LDFLAGS)
if test "x$enable_atopology" = "xyes"; then
ALSA_TOPOLOGY_LIBS="$ALSA_TOPOLOGY_LIBS -latopology"
fi
AC_MSG_RESULT($ALSA_TOPOLOGY_LIBS)
dnl That should be it. Now just export out symbols:
AC_SUBST(ALSA_CFLAGS)
AC_SUBST(ALSA_LIBS)
AC_SUBST(ALSA_TOPOLOGY_LIBS)
])