jack: Add support for detecting libjack on Windows

No source code changes were necessary to get the plugin working on
Windows with MSVC.

Run QJackCtl and audiotestsrc ! jackaudiosink just works.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2515>
This commit is contained in:
Nirbheek Chauhan 2022-05-26 01:21:43 +05:30 committed by Tim-Philipp Müller
parent 0339363aab
commit 3b857965e8

View file

@ -6,17 +6,97 @@ jack_sources = [
'gstjackutil.c',
]
libjack_dep = dependency('jack', version : '>= 1.9.7', required : get_option('jack'))
if libjack_dep.found()
gstjack = library('gstjack',
jack_sources,
c_args : gst_plugins_good_args + ['-DHAVE_JACK_1_9_7'],
include_directories : [configinc, libsinc],
dependencies : [gst_dep, gstbase_dep, gstaudio_dep, libjack_dep],
install : true,
install_dir : plugins_install_dir,
)
pkgconfig.generate(gstjack, install_dir : plugins_pkgconfig_install_dir)
plugins += [gstjack]
jack_option = get_option('jack')
if jack_option.disabled()
subdir_done()
endif
jack_incdirs = [configinc, libsinc]
libjack_dep = dependency('jack', version : '>= 1.9.7', required : false)
if not libjack_dep.found()
fs = import('fs')
host_cpu = host_machine.cpu_family()
jack_maybe_installed = false
error_msg = '"jack" option is enabled but '
if (host_system == 'windows' and build_machine.system() == 'windows')
# Need to detect whether we're running on 64-bit Windows or not.
# If `C:/Program Files (x86)/` exists, we're running on 64-bit Windows, and
# C:/Program Files/ contains 64-bit programs. Else, we're on 32-bit Windows
# and C:/Program Files/ contains 32-bit programs.
#
# The user could either have a 32-bit JACK installation or a 64-bit one.
# When building for 32-bit x86, we need to check for both.
if fs.is_dir('C:/Program Files (x86)')
jack64_install_dir = 'C:/Program Files/JACK2'
jack32_install_dir = 'C:/Program Files (x86)/JACK2'
else
jack64_install_dir = ''
jack32_install_dir = 'C:/Program Files/JACK2'
endif
if host_cpu == 'x86'
jack_install_dir = jack32_install_dir
jack_maybe_installed = fs.is_dir(jack32_install_dir / 'include')
if not jack_maybe_installed and jack64_install_dir != ''
jack_maybe_installed = fs.is_dir(jack64_install_dir / 'include')
jack_install_dir = jack64_install_dir
endif
elif jack64_install_dir != ''
jack_maybe_installed = import('fs').is_dir(jack64_install_dir / 'include')
jack_install_dir = jack64_install_dir
endif
error_msg += 'JACK2 installation could not be found'
else
error_msg += 'JACK dependency could not be found'
endif
if not jack_maybe_installed
if jack_option.enabled()
error(error_msg)
endif
subdir_done()
endif
if not host_cpu.startswith('x86')
if jack_option.enabled()
error('On Windows, JACK only supports x86 32-bit and 64-bit')
endif
subdir_done()
endif
if host_cpu == 'x86'
jack_libname = 'libjack'
if jack_install_dir == jack64_install_dir
jack_libdir = jack_install_dir / 'lib32'
else
jack_libdir = jack_install_dir / 'lib'
endif
else
jack_libname = 'libjack64'
jack_libdir = jack_install_dir / 'lib'
endif
inc = include_directories(jack_install_dir / 'include')
libjack_dep = cc.find_library(jack_libname,
dirs: jack_libdir,
has_headers: 'jack/jack.h',
header_include_directories: inc,
required: jack_option)
# This won't be needed once we require a meson version that includes this:
# https://github.com/mesonbuild/meson/pull/10428
jack_incdirs += inc
endif
gstjack = library('gstjack',
jack_sources,
c_args : gst_plugins_good_args + ['-DHAVE_JACK_1_9_7'],
include_directories : jack_incdirs,
dependencies : [gst_dep, gstbase_dep, gstaudio_dep, libjack_dep],
install : true,
install_dir : plugins_install_dir,
)
pkgconfig.generate(gstjack, install_dir : plugins_pkgconfig_install_dir)
plugins += [gstjack]