meson: Revamp qt5qml plugin and example build code

Stricter and simpler. For example, now we properly error out when
gstreamer-gl-1.0 was not found when the qt5 plugin is enabled or when
a C++ compiler is not enabled.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/587>
This commit is contained in:
Nirbheek Chauhan 2020-05-12 04:30:13 +05:30
parent d8f0deadc3
commit 2ecba800bf
6 changed files with 204 additions and 204 deletions

View file

@ -17,155 +17,178 @@ moc_headers = [
'qtglrenderer.h',
]
# FIXME: -Dqt5=enabled is silently ignored if a c++ compiler is not found
if have_cxx and build_gstgl
qt5_mod = import('qt5')
qt5qml_dep = dependency('qt5', modules : ['Core', 'Gui', 'Qml', 'Quick'],
required: get_option('qt5'), static: host_machine.system() == 'ios')
# Define a not-found dependency so this variable is always defined when we're
# deciding whether to build the qt5 examples
qt5qml_dep = dependency('', required: false)
qt5_option = get_option('qt5')
# On Linux, distros often have the Qt5 pkg-config files and moc in separate
# packages, so the user may not have both installed. Check for moc and ensure
# that it's installed.
# We don't do this check on other OSes because they need to be able to simply
# point the `QMAKE` env var to `qmake` to build against a particular Qt5.
if host_system == 'linux'
moc = find_program('moc-qt5', 'moc', required : get_option('qt5'))
else
# We only check if `moc` was found, and then discard it, so we can fake it.
# This is also a good unit test of the fact that we *don't* use it.
moc = declare_dependency()
if qt5_option.disabled()
subdir_done()
endif
if not build_gstgl
if qt5_option.enabled()
error('qt5 qmlglsink plugin is enabled, but gstreamer-gl-1.0 was not found')
endif
if qt5qml_dep.found() and moc.found()
optional_deps = []
qt_defines = []
have_qpa_include = false
have_qt_windowing = false
subdir_done()
endif
# Attempt to find the QPA header either through pkg-config (preferred) or qmake
# This semi-matches what meson does internally with the qt5 module
# FIXME Add a way to get some of this information out of the qt5 module
if not have_qpa_include
# FIXME: automagic
qt5core_dep = dependency('Qt5Core', required: false)
if qt5core_dep.found() and qt5core_dep.type_name() == 'pkgconfig'
qt_version = qt5core_dep.version()
qt_include_dir = qt5core_dep.get_pkgconfig_variable('includedir')
qpa_include_path = join_paths(qt_include_dir, 'QtGui', qt_version, 'QtGui')
if cxx.has_header('qpa/qplatformnativeinterface.h',
dependencies : qt5core_dep,
args : '-I' + qpa_include_path)
qt_defines += '-DHAVE_QT_QPA_HEADER'
qt_defines += '-I' + qpa_include_path
have_qpa_include = true
message('Found QPA header using pkg-config')
endif
endif
endif
if not have_qpa_include
qmake = find_program('qmake-qt5', 'qmake')
if qmake.found()
qt_version = run_command(qmake, '-query', 'QT_VERSION').stdout().strip()
qt_include_dir = run_command(qmake, '-query', 'QT_INSTALL_HEADERS').stdout().strip()
qpa_include_path = join_paths(qt_include_dir, 'QtGui', qt_version, 'QtGui')
if cxx.has_header('qpa/qplatformnativeinterface.h',
args : '-I' + qpa_include_path)
qt_defines += '-DHAVE_QT_QPA_HEADER'
qt_defines += '-I' + qpa_include_path
have_qpa_include = true
message('Found QPA header using qmake')
endif
endif
endif
if not have_cxx
if qt5_option.enabled()
error('qt5 qmlglsink plugin is enabled, but no C++ compiler is available')
endif
subdir_done()
endif
# Try to come up with all the platform/winsys combinations that will work
qt5_mod = import('qt5')
qt5qml_dep = dependency('qt5', modules : ['Core', 'Gui', 'Qml', 'Quick'],
required: qt5_option, static: host_machine.system() == 'ios')
if gst_gl_have_window_x11 and gst_gl_have_platform_glx
# FIXME: automagic
qt5x11extras = dependency('qt5', modules : ['X11Extras'], required : false)
if qt5x11extras.found()
optional_deps += qt5x11extras
qt_defines += ['-DHAVE_QT_X11']
have_qt_windowing = true
endif
endif
# On Linux, distros often have the Qt5 pkg-config files and moc in separate
# packages, so the user may not have both installed. Check for moc and ensure
# that it's installed.
# We don't do this check on other OSes because they need to be able to simply
# point the `QMAKE` env var to `qmake` to build against a particular Qt5.
if host_system == 'linux'
moc = find_program('moc-qt5', 'moc', required : qt5_option)
else
# We only check if `moc` was found, and then discard it, so we can fake it.
# This is also a good unit test of the fact that we *don't* use it.
moc = declare_dependency()
endif
if gst_gl_have_platform_egl
# Embedded linux (e.g. i.MX6) with or without windowing support
qt_defines += ['-DHAVE_QT_EGLFS']
egl_dep = dependency('egl', required : false)
optional_deps += egl_dep
have_qt_windowing = true
if have_qpa_include
# Wayland windowing
if gst_gl_have_window_wayland
# FIXME: automagic
qt5waylandextras = dependency('qt5', modules : ['WaylandClient'], required : false)
if qt5waylandextras.found()
optional_deps += qt5waylandextras
qt_defines += ['-DHAVE_QT_WAYLAND']
have_qt_windowing = true
endif
endif
# Android windowing
if gst_gl_have_window_android
# FIXME: automagic
qt5androidextras = dependency('qt5', modules : ['AndroidExtras'], required : false)
# for gl functions in QtGui/qopenglfunctions.h
# FIXME: automagic
glesv2_dep = cc.find_library('GLESv2', required : false)
if glesv2_dep.found() and qt5androidextras.found()
optional_deps += [qt5androidextras, glesv2_dep]
qt_defines += ['-DHAVE_QT_ANDROID']
have_qt_windowing = true
# Needed for C++11 support in Cerbero. People building with Android
# in some other way need to add the necessary bits themselves.
optional_deps += dependency('gnustl', required : false)
endif
endif
endif
endif
if not qt5qml_dep.found() or not moc.found()
subdir_done()
endif
if gst_gl_have_platform_wgl and gst_gl_have_window_win32
# for wglMakeCurrent()
# FIXME: automagic
opengl32_dep = cc.find_library('opengl32', required : false)
if opengl32_dep.found()
qt_defines += ['-DHAVE_QT_WIN32']
optional_deps += opengl32_dep
have_qt_windowing = true
endif
endif
optional_deps = []
qt_defines = []
have_qpa_include = false
have_qt_windowing = false
if gst_gl_have_window_cocoa and gst_gl_have_platform_cgl
# FIXME: automagic
qt5macextras = dependency('qt5', modules : ['MacExtras'], required : false)
if qt5macextras.found()
qt_defines += ['-DHAVE_QT_MAC']
optional_deps += qt5macextras
have_qt_windowing = true
endif
endif
if gst_gl_have_window_eagl and gst_gl_have_platform_eagl
if host_machine.system() == 'ios'
qt_defines += ['-DHAVE_QT_IOS']
have_qt_windowing = true
endif
endif
if have_qt_windowing
# Build it!
moc_files = qt5_mod.preprocess(moc_headers : moc_headers)
gstqmlgl = library('gstqmlgl', sources, moc_files,
cpp_args : gst_plugins_good_args + qt_defines,
link_args : noseh_link_args,
include_directories: [configinc, libsinc],
dependencies : [glib_deps, gst_dep, gstvideo_dep, gstgl_dep, qt5qml_dep, optional_deps],
override_options : ['cpp_std=c++11'],
install: true,
install_dir : plugins_install_dir)
pkgconfig.generate(gstqmlgl, install_dir : plugins_pkgconfig_install_dir)
plugins += [gstqmlgl]
# Attempt to find the QPA header either through pkg-config (preferred) or qmake
# This semi-matches what meson does internally with the qt5 module
# FIXME Add a way to get some of this information out of the qt5 module
if not have_qpa_include
# FIXME: automagic
qt5core_dep = dependency('Qt5Core', required: false)
if qt5core_dep.found() and qt5core_dep.type_name() == 'pkgconfig'
qt_version = qt5core_dep.version()
qt_include_dir = qt5core_dep.get_pkgconfig_variable('includedir')
qpa_include_path = join_paths(qt_include_dir, 'QtGui', qt_version, 'QtGui')
if cxx.has_header('qpa/qplatformnativeinterface.h',
dependencies : qt5core_dep,
args : '-I' + qpa_include_path)
qt_defines += '-DHAVE_QT_QPA_HEADER'
qt_defines += '-I' + qpa_include_path
have_qpa_include = true
message('Found QPA header using pkg-config')
endif
endif
endif
if not have_qpa_include
qmake = find_program('qmake-qt5', 'qmake')
if qmake.found()
qt_version = run_command(qmake, '-query', 'QT_VERSION').stdout().strip()
qt_include_dir = run_command(qmake, '-query', 'QT_INSTALL_HEADERS').stdout().strip()
qpa_include_path = join_paths(qt_include_dir, 'QtGui', qt_version, 'QtGui')
if cxx.has_header('qpa/qplatformnativeinterface.h',
args : '-I' + qpa_include_path)
qt_defines += '-DHAVE_QT_QPA_HEADER'
qt_defines += '-I' + qpa_include_path
have_qpa_include = true
message('Found QPA header using qmake')
endif
endif
endif
# Try to come up with all the platform/winsys combinations that will work
if gst_gl_have_window_x11 and gst_gl_have_platform_glx
# FIXME: automagic
qt5x11extras = dependency('qt5', modules : ['X11Extras'], required : false)
if qt5x11extras.found()
optional_deps += qt5x11extras
qt_defines += ['-DHAVE_QT_X11']
have_qt_windowing = true
endif
endif
if gst_gl_have_platform_egl
# Embedded linux (e.g. i.MX6) with or without windowing support
qt_defines += ['-DHAVE_QT_EGLFS']
egl_dep = dependency('egl', required : false)
optional_deps += egl_dep
have_qt_windowing = true
if have_qpa_include
# Wayland windowing
if gst_gl_have_window_wayland
# FIXME: automagic
qt5waylandextras = dependency('qt5', modules : ['WaylandClient'], required : false)
if qt5waylandextras.found()
optional_deps += qt5waylandextras
qt_defines += ['-DHAVE_QT_WAYLAND']
have_qt_windowing = true
endif
endif
# Android windowing
if gst_gl_have_window_android
# FIXME: automagic
qt5androidextras = dependency('qt5', modules : ['AndroidExtras'], required : false)
# for gl functions in QtGui/qopenglfunctions.h
# FIXME: automagic
glesv2_dep = cc.find_library('GLESv2', required : false)
if glesv2_dep.found() and qt5androidextras.found()
optional_deps += [qt5androidextras, glesv2_dep]
qt_defines += ['-DHAVE_QT_ANDROID']
have_qt_windowing = true
# Needed for C++11 support in Cerbero. People building with Android
# in some other way need to add the necessary bits themselves.
optional_deps += dependency('gnustl', required : false)
endif
endif
endif
endif
if gst_gl_have_platform_wgl and gst_gl_have_window_win32
# for wglMakeCurrent()
# FIXME: automagic
opengl32_dep = cc.find_library('opengl32', required : false)
if opengl32_dep.found()
qt_defines += ['-DHAVE_QT_WIN32']
optional_deps += opengl32_dep
have_qt_windowing = true
endif
endif
if gst_gl_have_window_cocoa and gst_gl_have_platform_cgl
# FIXME: automagic
qt5macextras = dependency('qt5', modules : ['MacExtras'], required : false)
if qt5macextras.found()
qt_defines += ['-DHAVE_QT_MAC']
optional_deps += qt5macextras
have_qt_windowing = true
endif
endif
if gst_gl_have_window_eagl and gst_gl_have_platform_eagl
if host_machine.system() == 'ios'
qt_defines += ['-DHAVE_QT_IOS']
have_qt_windowing = true
endif
endif
if have_qt_windowing
# Build it!
moc_files = qt5_mod.preprocess(moc_headers : moc_headers)
gstqmlgl = library('gstqmlgl', sources, moc_files,
cpp_args : gst_plugins_good_args + qt_defines,
link_args : noseh_link_args,
include_directories: [configinc, libsinc],
dependencies : [glib_deps, gst_dep, gstvideo_dep, gstgl_dep, qt5qml_dep, optional_deps],
override_options : ['cpp_std=c++11'],
install: true,
install_dir : plugins_install_dir)
pkgconfig.generate(gstqmlgl, install_dir : plugins_pkgconfig_install_dir)
plugins += [gstqmlgl]
endif

View file

@ -1,3 +1,19 @@
if qt5_option.disabled()
subdir_done()
endif
# We already did all the checks when building the qt plugin
if not qt5qml_dep.found()
subdir_done()
endif
qt5qml_example_deps = dependency('qt5', modules : ['Core', 'Gui', 'Widgets', 'Qml', 'Quick'],
required: get_option('examples'))
if not qt5qml_example_deps.found()
subdir_done()
endif
subdir('qmloverlay')
subdir('qmlsink')
subdir('qmlsink-dynamically-added')

View file

@ -2,19 +2,9 @@ sources = [
'main.cpp',
]
if have_cxx and build_gstgl and gstgl_dep.found()
qt5_mod = import('qt5')
qt5qml_deps = dependency('qt5', modules : ['Core', 'Gui', 'Widgets', 'Qml', 'Quick'],
required: get_option('examples'))
# FIXME Add a way to get that information out of the qt5 module
moc = find_program('moc-qt5', 'moc', required : get_option('examples'))
if qt5qml_deps.found() and moc.found()
qt_preprocessed = qt5_mod.preprocess(qresources : 'qmloverlay.qrc')
executable('qmlgloverlay', sources, qt_preprocessed,
dependencies : [gst_dep, qt5qml_deps],
c_args : gst_plugins_good_args,
include_directories : [configinc],
install: false)
endif
endif
qt_preprocessed = qt5_mod.preprocess(qresources : 'qmloverlay.qrc')
executable('qmlgloverlay', sources, qt_preprocessed,
dependencies : [gst_dep, qt5qml_example_deps],
c_args : gst_plugins_good_args,
include_directories : [configinc],
install: false)

View file

@ -2,19 +2,9 @@ sources = [
'main.cpp',
]
if have_cxx and build_gstgl and gstgl_dep.found()
qt5_mod = import('qt5')
qt5qml_deps = dependency('qt5', modules : ['Core', 'Gui', 'Widgets', 'Qml', 'Quick'],
required: get_option('examples'))
# FIXME Add a way to get that information out of the qt5 module
moc = find_program('moc-qt5', 'moc', required : get_option('examples'))
if qt5qml_deps.found() and moc.found()
qt_preprocessed = qt5_mod.preprocess(qresources : 'qmlsink.qrc')
executable('qmlsink-dynamically-added', sources, qt_preprocessed,
dependencies : [gst_dep, gstgl_dep, qt5qml_deps],
c_args : gst_plugins_good_args,
include_directories : [configinc],
install: false)
endif
endif
qt_preprocessed = qt5_mod.preprocess(qresources : 'qmlsink.qrc')
executable('qmlsink-dynamically-added', sources, qt_preprocessed,
dependencies : [gst_dep, gstgl_dep, qt5qml_example_deps],
c_args : gst_plugins_good_args,
include_directories : [configinc],
install: false)

View file

@ -2,19 +2,9 @@ sources = [
'main.cpp',
]
if have_cxx and build_gstgl and gstgl_dep.found()
qt5_mod = import('qt5')
qt5qml_deps = dependency('qt5', modules : ['Core', 'Gui', 'Widgets', 'Qml', 'Quick'],
required: get_option('examples'))
# FIXME Add a way to get that information out of the qt5 module
moc = find_program('moc-qt5', 'moc', required : get_option('examples'))
if qt5qml_deps.found() and moc.found()
qt_preprocessed = qt5_mod.preprocess(qresources : 'qmlsink.qrc')
executable('qmlsink', sources, qt_preprocessed,
dependencies : [gst_dep, qt5qml_deps],
c_args : gst_plugins_good_args,
include_directories : [configinc],
install: false)
endif
endif
qt_preprocessed = qt5_mod.preprocess(qresources : 'qmlsink.qrc')
executable('qmlsink', sources, qt_preprocessed,
dependencies : [gst_dep, qt5qml_example_deps],
c_args : gst_plugins_good_args,
include_directories : [configinc],
install: false)

View file

@ -2,18 +2,9 @@ sources = [
'main.cpp',
]
if have_cxx and build_gstgl and gstgl_dep.found()
qt5_mod = import('qt5')
qt5qml_deps = dependency('qt5', modules : ['Core', 'Gui', 'Widgets', 'Qml', 'Quick'],
required: get_option('examples'))
# FIXME Add a way to get that information out of the qt5 module
moc = find_program('moc-qt5', 'moc', required : get_option('examples'))
if qt5qml_deps.found() and moc.found()
qt_preprocessed = qt5_mod.preprocess(qresources : 'qmlsrc.qrc')
executable('qmlsrc', sources, qt_preprocessed,
dependencies : [gst_dep, qt5qml_deps],
c_args : gst_plugins_good_args,
include_directories : [configinc],
install: false)
endif
endif
qt_preprocessed = qt5_mod.preprocess(qresources : 'qmlsrc.qrc')
executable('qmlsrc', sources, qt_preprocessed,
dependencies : [gst_dep, qt5qml_example_deps],
c_args : gst_plugins_good_args,
include_directories : [configinc],
install: false)