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gstreamer/subprojects/gst-plugins-base/gst-libs/gst/gl/meson.build
Loïc Le Page e1ca575408 gl: add support for surfaceless display in GstGL 
Use of the EGL_MESA_platform_surfaceless EGL extension to create an EGL
display that is not depending on any kind of windowing system.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5511>
2023-10-20 12:46:48 +00:00

1324 lines
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Meson
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gstgl_dep = dependency('', required : false)
gstglproto_dep = dependency('', required : false)
gstglx11_dep = dependency('', required : false)
gstglwayland_dep = dependency('', required : false)
gstglegl_dep = dependency('', required : false)
gstglviv_fb_dep = dependency('', required : false)
if get_option('gl').disabled()
message('GStreamer OpenGL integration disabled via options.')
build_gstgl = false
subdir_done()
endif
gl_sources = files([
'gstglapi.c',
'gstglbasefilter.c',
'gstglbasememory.c',
'gstglbasemixer.c',
'gstglbasesrc.c',
'gstglcolorconvert.c',
'gstglbuffer.c',
'gstglbufferpool.c',
'gstglcontext.c',
'gstglcontextconfig.c',
'gstglcontextquirks.c',
'gstgldebug.c',
'gstgldisplay.c',
'gstglfeature.c',
'gstglfilter.c',
'gstglformat.c',
'gstglframebuffer.c',
'gstglmemory.c',
'gstglmemorypbo.c',
'gstglmixer.c',
'gstgloverlaycompositor.c',
'gstglquery.c',
'gstglrenderbuffer.c',
'gstglshader.c',
'gstglshaderstrings.c',
'gstglsl.c',
'gstglslstage.c',
'gstglsyncmeta.c',
'gstglupload.c',
'gstglutils.c',
'gstglviewconvert.c',
'gstglwindow.c',
])
gl_priv_sources = []
gir_gl_headers = files([
'gl.h',
'gl-prelude.h',
'gstgl_enums.h',
'gstgl_fwd.h',
'gstglapi.h',
'gstglbasefilter.h',
'gstglbasememory.h',
'gstglbasemixer.h',
'gstglbasesrc.h',
'gstglbuffer.h',
'gstglbufferpool.h',
'gstglcolorconvert.h',
'gstglcontext.h',
'gstglcontextconfig.h',
'gstgldebug.h',
'gstgldisplay.h',
'gstglfeature.h',
'gstglfilter.h',
'gstglformat.h',
'gstglframebuffer.h',
'gstglmemory.h',
'gstglmemorypbo.h',
'gstglmixer.h',
'gstgloverlaycompositor.h',
'gstglquery.h',
'gstglrenderbuffer.h',
'gstglshader.h',
'gstglshaderstrings.h',
'gstglsl.h',
'gstglslstage.h',
'gstglsyncmeta.h',
'gstglupload.h',
'gstglutils.h',
'gstglviewconvert.h',
'gstglwindow.h',
])
gl_headers = gir_gl_headers + files([
'gstglfuncs.h',
])
gl_prototype_headers = files([
'glprototypes/all_functions.h',
'glprototypes/base.h',
'glprototypes/buffer_storage.h',
'glprototypes/blending.h',
'glprototypes/buffers.h',
'glprototypes/debug.h',
'glprototypes/eglimage.h',
'glprototypes/fbo.h',
'glprototypes/fixedfunction.h',
'glprototypes/gles.h',
'glprototypes/gstgl_compat.h',
'glprototypes/gstgl_gles2compat.h',
'glprototypes/opengl.h',
'glprototypes/query.h',
'glprototypes/shaders.h',
'glprototypes/sync.h',
'glprototypes/vao.h',
])
gl_x11_sources = []
gl_x11_headers = []
gl_wayland_sources = []
gl_wayland_headers = []
gl_egl_sources = []
gl_egl_headers = []
gl_viv_fb_sources = []
gl_viv_fb_headers = []
glconf = configuration_data()
glconf_options = [
'GST_GL_HAVE_OPENGL',
'GST_GL_HAVE_GLES2',
'GST_GL_HAVE_GLES3',
'GST_GL_HAVE_GLES3EXT3_H',
'GST_GL_HAVE_WINDOW_X11',
'GST_GL_HAVE_WINDOW_COCOA',
'GST_GL_HAVE_WINDOW_WIN32',
'GST_GL_HAVE_WINDOW_WINRT',
'GST_GL_HAVE_WINDOW_WAYLAND',
'GST_GL_HAVE_WINDOW_ANDROID',
'GST_GL_HAVE_WINDOW_DISPMANX',
'GST_GL_HAVE_WINDOW_EAGL',
'GST_GL_HAVE_WINDOW_VIV_FB',
'GST_GL_HAVE_WINDOW_GBM',
'GST_GL_HAVE_PLATFORM_EGL',
'GST_GL_HAVE_PLATFORM_GLX',
'GST_GL_HAVE_PLATFORM_WGL',
'GST_GL_HAVE_PLATFORM_CGL',
'GST_GL_HAVE_PLATFORM_EAGL',
'GST_GL_HAVE_DMABUF',
'GST_GL_HAVE_VIV_DIRECTVIV',
'GST_GL_HAVE_GLEGLIMAGEOES',
'GST_GL_HAVE_GLCHAR',
'GST_GL_HAVE_GLSIZEIPTR',
'GST_GL_HAVE_GLINTPTR',
'GST_GL_HAVE_GLSYNC',
'GST_GL_HAVE_GLUINT64',
'GST_GL_HAVE_GLINT64',
'GST_GL_HAVE_EGLATTRIB',
'GST_GL_HAVE_EGLUINT64KHR',
]
foreach option : glconf_options
glconf.set(option, 0)
endforeach
unneeded_dep = dependency('', required : false)
if unneeded_dep.found()
error ('Found unfindable dependency')
endif
# OpenGL/GLES2 libraries
gl_lib_deps = []
# GL platform - EGL, GLX, CGL, WGL, etc
gl_platform_deps = []
# GL winsys - wayland, X11, Cocoa, win32, etc
gl_winsys_deps = []
# other things we need.
gl_misc_deps = []
# Other preprocessor arguments
gl_cpp_args = []
gl_includes = []
gl_objc_args = []
enabled_gl_apis = []
enabled_gl_platforms = []
enabled_gl_winsys = []
# parse provided options
libegl_module_name = get_option('egl_module_name')
if libegl_module_name != ''
gl_cpp_args += ['-DGST_GL_LIBEGL_MODULE_NAME="@0@"'.format(libegl_module_name)]
endif
libgles2_module_name = get_option('gles2_module_name')
if libgles2_module_name != ''
gl_cpp_args += ['-DGST_GL_LIBGLESV2_MODULE_NAME="@0@"'.format(libgles2_module_name)]
endif
libgl_module_name = get_option('opengl_module_name')
if libgl_module_name != ''
gl_cpp_args += ['-DGST_GL_LIBGL_MODULE_NAME="@0@"'.format(libgl_module_name)]
endif
gl_apis = get_option('gl_api')
if gl_apis.contains('auto')
need_api_opengl = 'auto'
need_api_gles2 = 'auto'
else
need_api_opengl = 'no'
need_api_gles2 = 'no'
foreach api : gl_apis
if api == 'opengl'
need_api_opengl = 'yes'
elif api == 'gles2'
need_api_gles2 = 'yes'
else
error('Unsupported GL api provided ' + api)
endif
endforeach
endif
gl_platforms = get_option('gl_platform')
if gl_platforms.contains('auto')
need_platform_egl = 'auto'
need_platform_glx = 'auto'
need_platform_cgl = 'auto'
need_platform_wgl = 'auto'
need_platform_eagl = 'auto'
else
need_platform_egl = 'no'
need_platform_glx = 'no'
need_platform_cgl = 'no'
need_platform_wgl = 'no'
need_platform_eagl = 'no'
foreach platform : gl_platforms
if platform == 'egl'
need_platform_egl = 'yes'
elif platform == 'glx'
need_platform_glx = 'yes'
elif platform == 'cgl'
need_platform_cgl = 'yes'
elif platform == 'wgl'
need_platform_wgl = 'yes'
elif platform == 'eagl'
need_platform_eagl = 'yes'
else
error('Unsupported GL platform provided ' + platform)
endif
endforeach
endif
gl_winsys = get_option('gl_winsys')
if gl_winsys.contains('auto')
need_win_x11 = 'auto'
need_win_wayland = 'auto'
need_win_win32 = 'auto'
need_win_winrt = 'auto'
need_win_cocoa = 'auto'
need_win_egl = 'auto'
need_win_surfaceless = 'auto'
need_win_eagl = 'auto'
need_win_dispmanx = 'auto'
need_win_viv_fb = 'auto'
need_win_gbm = 'auto'
need_win_android = 'auto'
else
need_win_x11 = 'no'
need_win_wayland = 'no'
need_win_win32 = 'no'
need_win_winrt = 'no'
need_win_cocoa = 'no'
need_win_egl = 'no'
need_win_surfaceless = 'no'
need_win_eagl = 'no'
need_win_dispmanx = 'no'
need_win_viv_fb = 'no'
need_win_gbm = 'no'
need_win_android = 'no'
foreach winsys : gl_winsys
if winsys == 'x11'
need_win_x11 = 'yes'
elif winsys == 'wayland'
need_win_wayland = 'yes'
elif winsys == 'win32'
need_win_win32 = 'yes'
elif winsys == 'winrt'
need_win_winrt = 'yes'
elif winsys == 'cocoa'
need_win_cocoa = 'yes'
elif winsys == 'egl'
need_win_egl = 'yes'
elif winsys == 'surfaceless'
need_win_surfaceless = 'yes'
elif winsys == 'eagl'
need_win_eagl = 'yes'
elif winsys == 'dispmanx'
need_win_dispmanx = 'yes'
elif winsys == 'viv-fb'
need_win_viv_fb = 'yes'
elif winsys == 'gbm'
need_win_gbm = 'yes'
elif winsys == 'android'
need_win_android = 'yes'
else
error('Unsupported GL winsys provided ' + winsys)
endif
endforeach
endif
gl_include_header = '''
#ifdef __GNUC__
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wredundant-decls"
#endif
#ifndef GL_GLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES 1
#endif
'''
# convoluted way of getting at the subproject taking into account the wrap-mode
# so we don't download a subproject unless allowed
gl_header_dep = dependency('', fallback : ['gl-headers', 'gl_headers_dummy_dep'],
required : false)
if gl_header_dep.type_name() == 'internal'
# this will only contain the includes of headers that are not found
compat_includes = subproject('gl-headers').get_variable('compatibility_includes')
else
compat_includes = []
endif
# Desktop OpenGL checks
gl_dep = unneeded_dep
glx_dep = unneeded_dep
# (GLVND) OpenGL (without GLX) headers and interface
if need_api_opengl != 'no'
gl_dep = dependency('opengl', method: 'pkg-config', required : false)
endif
# non-GLVND aka Legacy OpenGL
if need_api_opengl != 'no' and not gl_dep.found()
if host_system == 'darwin'
gl_dep = dependency('appleframeworks', modules : ['OpenGL'], required : false)
else
# override meson's braindead gl detection on osx/windows/etc by forcing pkg-config
gl_dep = dependency('gl', method: 'pkg-config', required : false)
endif
if not gl_dep.found()
if host_system == 'windows'
gl_dep = cc.find_library('opengl32', required : false)
else
gl_dep = cc.find_library('GL', required : false)
endif
if not cc.has_header('GL/gl.h', include_directories : compat_includes)
gl_dep = unneeded_dep
endif
if not gl_dep.found() and need_api_opengl == 'yes'
error ('Could not find requested OpenGL library')
endif
if gl_dep.found()
gl_includes += [compat_includes]
endif
endif
endif
if need_platform_glx != 'no'
# (GLVND) GLX library and headers.
glx_dep = dependency('glx', method: 'pkg-config', required : false)
if not glx_dep.found()
if host_system == 'darwin'
glx_dep = cc.find_library('GL', required : false)
elif gl_dep.found()
glx_dep = gl_dep
elif need_platform_glx == 'yes'
error ('Could not find requested GLX library')
endif
endif
endif
if need_api_opengl != 'no'
opengl_includes = ''
if host_system == 'darwin'
opengl_includes += '''
#if !defined(MAC_OS_X_VERSION_MAX_ALLOWED) || MAC_OS_X_VERSION_MAX_ALLOWED >= 1014
# define GL_SILENCE_DEPRECATION
#endif
#include <OpenGL/OpenGL.h>
#include <OpenGL/gl.h>
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
# define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED
# include <OpenGL/gl3.h>
#endif
'''
else
opengl_includes += '''
#if _MSC_VER
# include <windows.h>
#endif
#include <GL/gl.h>
#if __WIN32__ || _WIN32
# include <GL/glext.h>
#endif
'''
endif
endif
bcm_host_dep = unneeded_dep
if need_win_dispmanx != 'no'
# Try pkg-config for bcm_host then fallback to find_library to also
# support older distribution
bcm_host_dep = dependency('bcm_host', required : false)
if not bcm_host_dep.found()
bcm_host_dep = cc.find_library('bcm_host', required : false)
endif
endif
# GLES2 checks
gles2_dep = unneeded_dep
gles3_h = false
gles3ext3_h = false
if need_api_gles2 != 'no'
if host_system == 'ios'
gles2_dep = dependency('appleframeworks', modules : ['OpenGLES'], required : false)
else
if bcm_host_dep.found()
gles2_dep = dependency('brcmglesv2', required : false)
endif
if not gles2_dep.found()
gles2_dep = dependency('glesv2', required : false)
endif
endif
if not gles2_dep.found()
# if host_system == 'windows'
# elif host_system == ios
# gles2_dep = cc.find_library('GLESv2', required : false)
# else
gles2_dep = cc.find_library('GLESv2', required : false)
# endif
if not cc.has_header('GLES2/gl2.h', include_directories : compat_includes)
gles2_dep = unneeded_dep
endif
if not gles2_dep.found() and need_api_gles2 == 'yes'
error ('Could not find requested OpenGL ES library')
endif
if gles2_dep.found()
gl_includes += [compat_includes]
endif
endif
gles3_h = gles2_dep.found() and cc.has_header('GLES3/gl3.h', dependencies : gles2_dep, include_directories : compat_includes)
gles_includes = ''
if host_system == 'ios'
gles_includes += '''
# include <OpenGLES/ES2/gl.h>
# include <OpenGLES/ES2/glext.h>
'''
else
if gles3_h
gl_includes += [compat_includes]
gles3ext3_h = gles3_h and cc.has_header('GLES3/gl3ext.h', dependencies : gles2_dep, include_directories : compat_includes)
gles_includes += '''
# include <GLES3/gl3.h>
# include <GLES2/gl2ext.h>'''
if gles3ext3_h
gles_includes += '''
# include <GLES3/gl3ext.h>'''
endif
else
gles_includes += '''
# include <GLES2/gl2.h>
# include <GLES2/gl2ext.h>'''
endif
endif
endif
# can we include both gles2 and opengl headers?
if gles2_dep.found() and gl_dep.found()
gl_include_block = gl_include_header + gles_includes + opengl_includes
# TODO: Revert to passing gl_include_block via prefix: once
# https://github.com/mesonbuild/meson/issues/2364 is fixed
if not cc.compiles(gl_include_block + '\n' + 'void f (void) {}',dependencies : [gles2_dep, gl_dep], include_directories : compat_includes)
message ('Cannot include both OpenGL and OpenGL ES headers')
if need_api_gles2 != 'yes'
gles2_dep = unneeded_dep
elif need_api_opengl != 'yes'
gl_dep = unneeded_dep
else
error('Both OpenGL and OpenGL ES were requested but cannot be included together')
endif
endif
endif
gl_include_block = gl_include_header
if gles2_dep.found()
gl_include_block += gles_includes
endif
if gl_dep.found()
gl_include_block += opengl_includes
endif
if gles2_dep.found()
gl_lib_deps += gles2_dep
glconf.set('GST_GL_HAVE_GLES2', 1)
if gles3_h
glconf.set('GST_GL_HAVE_GLES3',1)
if gles3ext3_h
glconf.set('GST_GL_HAVE_GLES3EXT3_H', 1)
endif
endif
enabled_gl_apis += 'gles2'
endif
if gl_dep.found()
gl_lib_deps += gl_dep
glconf.set('GST_GL_HAVE_OPENGL', 1)
enabled_gl_apis += 'gl'
endif
# EGL checks
egl_dep = unneeded_dep
if need_platform_egl != 'no'
if bcm_host_dep.found()
egl_dep = dependency('brcmegl', required : false)
endif
if not egl_dep.found()
egl_dep = dependency('egl', required : false)
endif
if not egl_dep.found()
egl_dep = cc.find_library('EGL', required : false)
endif
if egl_dep.found() and not cc.has_header('EGL/egl.h',
dependencies : egl_dep,
include_directories : compat_includes)
egl_dep = unneeded_dep
endif
if egl_dep.found() and not cc.has_header('EGL/eglext.h',
dependencies : egl_dep,
include_directories : compat_includes)
egl_dep = unneeded_dep
endif
if egl_dep.found()
gl_egl_sources += files([
'egl/gstegl.c',
'egl/gsteglimage.c',
'egl/gstglcontext_egl.c',
'egl/gstgldisplay_egl.c',
'egl/gstglmemoryegl.c',
'egl/gstgldisplay_egl_device.c',
])
gl_egl_headers += files([
'egl/egl.h',
'egl/gstegl.h',
'egl/gsteglimage.h',
'egl/gstgldisplay_egl.h',
'egl/gstglmemoryegl.h',
'egl/gstgldisplay_egl_device.h',
])
gl_platform_deps += egl_dep
glconf.set('GST_GL_HAVE_PLATFORM_EGL', 1)
if cc.has_header('libdrm/drm_fourcc.h')
gl_misc_deps += allocators_dep
glconf.set('GST_GL_HAVE_DMABUF', 1)
endif
egl_includes = '''
#include <EGL/egl.h>
#include <EGL/eglext.h>
'''
enabled_gl_platforms += 'egl'
elif need_platform_egl == 'yes'
error ('Could not find requested EGL library')
endif
endif
# winsys_egl checks
if need_win_egl != 'no'
if need_platform_egl == 'no'
if need_win_egl == 'yes'
error ('Impossible situation requested: Cannot use Winsys egl without EGL support')
endif
elif not egl_dep.found()
if need_win_egl == 'yes'
error ('Could not find EGL libraries for Winsys egl')
else
message ('Could not find EGL libraries for Winsys egl')
endif
else
enabled_gl_winsys += 'egl'
endif
endif
# winsys_surfaceless checks
if need_win_surfaceless != 'no'
if need_platform_egl == 'no'
if need_win_surfaceless == 'yes'
error ('Impossible situation requested: Cannot use Winsys surfaceless without EGL support')
endif
elif not egl_dep.found()
if need_win_surfaceless == 'yes'
error ('Could not find EGL libraries for Winsys surfaceless')
else
message ('Could not find EGL libraries for Winsys surfaceless')
endif
else
enabled_gl_winsys += 'surfaceless'
endif
endif
# wayland checks
wayland_client_dep = unneeded_dep
wayland_cursor_dep = unneeded_dep
wayland_egl_dep = unneeded_dep
if need_win_wayland != 'no'
if need_win_wayland == 'yes'
if need_platform_egl == 'no'
error('Impossible situation requested: Cannot use Wayland without EGL support')
endif
endif
if not egl_dep.found()
if need_win_wayland == 'yes'
error ('Could not find EGL libraries for wayland')
else
message ('Could not find EGL libraries for wayland')
endif
else
wayland_client_dep = dependency('wayland-client', version : '>= 1.11', required : false)
wayland_cursor_dep = dependency('wayland-cursor', version : '>= 1.0', required : false)
wayland_egl_dep = dependency('wayland-egl', version : '>= 1.0', required : false)
wayland_protocols_dep = dependency('wayland-protocols', version : '>= 1.15', required : false)
wayland_scanner = find_program('wayland-scanner', required: false)
if wayland_client_dep.found() and wayland_cursor_dep.found() and wayland_egl_dep.found() and wayland_protocols_dep.found() and wayland_scanner.found()
# Generate the XDG shell interface
wayland_protocols_basedir = wayland_protocols_dep.get_variable('pkgdatadir')
xdg_shell_xml_spec = join_paths(wayland_protocols_basedir, 'stable', 'xdg-shell', 'xdg-shell.xml')
xdg_shell_header = custom_target('xdg-shell-client-header',
command: [ wayland_scanner, 'client-header', '@INPUT@', '@OUTPUT@' ],
input: xdg_shell_xml_spec,
output: 'xdg-shell-client-protocol.h',
)
xdg_shell_code = custom_target('xdg-shell-client-code',
command: [ wayland_scanner, 'private-code', '@INPUT@', '@OUTPUT@' ],
input: xdg_shell_xml_spec,
output: 'xdg-shell-client-protocol.c',
)
gl_wayland_sources += files([
'wayland/gstgldisplay_wayland.c',
])
gl_priv_sources += [
'wayland/gstglwindow_wayland_egl.c',
'wayland/wayland_event_source.c',
xdg_shell_header,
xdg_shell_code,
]
gl_wayland_headers += files([
'wayland/wayland.h',
'wayland/gstgldisplay_wayland.h'
])
glconf.set('GST_GL_HAVE_WINDOW_WAYLAND', 1)
gl_winsys_deps += [wayland_client_dep, wayland_cursor_dep, wayland_egl_dep]
enabled_gl_winsys += 'wayland'
else
if need_win_wayland == 'yes'
error ('Could not find requested Wayland libraries')
endif
wayland_client_dep = unneeded_dep
wayland_cursor_dep = unneeded_dep
wayland_egl_dep = unneeded_dep
wayland_protocols_dep = unneeded_dep
endif
endif
endif
# X11 checks
if need_platform_glx == 'yes'
if need_win_x11 == 'no'
error('Impossible situation requested: Cannot use GLX without X11 support')
elif need_api_opengl == 'no'
error('Impossible situation requested: Cannot use GLX without the OpenGL library')
endif
endif
xcb_dep = unneeded_dep
if need_win_x11 != 'no'
xcb_dep = dependency('x11-xcb', required : false)
if x11_dep.found() and xcb_dep.found()
gl_x11_sources += files([
'x11/gstgldisplay_x11.c',
])
gl_priv_sources += [
'x11/gstglwindow_x11.c',
'x11/xcb_event_source.c',
]
gl_x11_headers += files([
'x11/x11.h',
'x11/gstgldisplay_x11.h',
])
glconf.set('GST_GL_HAVE_WINDOW_X11', 1)
gl_winsys_deps += [x11_dep, xcb_dep]
enabled_gl_winsys += 'x11'
if need_platform_glx != 'no' and glx_dep.found() and cc.has_function ('glXMakeCurrent', dependencies : glx_dep)
glconf.set('GST_GL_HAVE_PLATFORM_GLX', 1)
gl_priv_sources += [
'x11/gstglcontext_glx.c',
]
# GLX is in the opengl library on linux
gl_platform_deps += glx_dep
enabled_gl_platforms += 'glx'
endif
elif need_win_x11 == 'yes'
error ('Could not find requested X11 libraries')
endif
endif
if need_win_dispmanx != 'no'
have_dispmanx_window_t = cc.has_type(
'EGL_DISPMANX_WINDOW_T',
prefix: '''
#include <bcm_host.h>
#include <EGL/egl.h>
''',
dependencies: [gl_lib_deps, egl_dep, bcm_host_dep],
include_directories: gl_includes)
if have_dispmanx_window_t and bcm_host_dep.found()
if not egl_dep.found()
error('dispmanx requires the use of egl')
endif
gl_priv_sources += [
'dispmanx/gstglwindow_dispmanx_egl.c'
]
glconf.set('GST_GL_HAVE_WINDOW_DISPMANX', 1)
gl_winsys_deps += bcm_host_dep
enabled_gl_winsys += 'dispmanx'
gl_cpp_args += ['-DUSE_EGL_RPI']
elif need_win_dispmanx == 'yes'
error('Could not find dispmanx libraries')
endif
endif
# win32 checks
if need_platform_wgl == 'yes'
if need_win_win32 == 'no'
error('Impossible situation requested: Cannot use WGL without the win32 window system')
endif
endif
if host_system == 'windows' and need_win_win32 != 'no'
gdi_dep = cc.find_library('gdi32', required : false)
if gdi_dep.found()
have_wgl = false
have_egl_win32 = false
if need_platform_wgl != 'no'
wglext_h = cc.has_header('GL/wglext.h',
prefix : '''#include <windows.h>
#include <GL/gl.h>''',
include_directories : compat_includes)
have_wgl = wglext_h and gl_dep.found()
endif
have_egl_win32 = enabled_gl_platforms.contains('egl') and gles2_dep.found()
if have_wgl or have_egl_win32
gl_includes += [compat_includes]
gl_platform_deps += gdi_dep
gl_priv_sources += [
'win32/gstglwindow_win32.c',
]
enabled_gl_winsys += 'win32'
gl_winsys_deps += gdi_dep
glconf.set('GST_GL_HAVE_WINDOW_WIN32', 1)
endif
if have_wgl
gl_priv_sources += [
'wgl/gstglcontext_wgl.c',
]
enabled_gl_platforms += 'wgl'
glconf.set('GST_GL_HAVE_PLATFORM_WGL', 1)
endif
endif
endif
# WinRT ANGLE checks
if need_win_winrt != 'no' and host_system == 'windows'
if need_win_winrt == 'yes' and not enabled_gl_platforms.contains('egl')
error('Impossible situation requested: Cannot use WinRT ANGLE without EGL support')
endif
if egl_dep.found()
windows_graphics_h = cc.has_header('windows.graphics.h')
windows_app_dep = cc.find_library('WindowsApp', required: false)
runtimeobject_lib = cc.find_library('runtimeobject', required: false)
if windows_graphics_h and windows_app_dep.found() and runtimeobject_lib.found()
enabled_gl_winsys += 'winrt'
glconf.set('GST_GL_HAVE_WINDOW_WINRT', 1)
gl_priv_sources += [
'winrt/gstglwindow_winrt_egl.cpp'
]
gl_winsys_deps += runtimeobject_lib
elif need_win_winrt == 'yes'
error('WinRT is enabled, but headers/libraries were not found')
endif
elif need_win_winrt == 'yes'
error('WinRT ANGLE is enabled, but EGL was not found')
else
message('WinRT ANGLE disabled because EGL was not found')
endif
endif
if ['darwin', 'ios'].contains(host_system)
if not have_objc
error('No ObjC compiler found')
endif
objc = meson.get_compiler('objc')
if not objc.has_argument('-fobjc-arc')
error('ARC is required for building')
endif
gl_objc_args += ['-fobjc-arc']
endif
# OSX check
if need_platform_cgl == 'yes'
if need_win_cocoa == 'no'
error('Impossible situation requested: Cannot use CGL without Cocoa support')
elif need_api_opengl == 'no'
error('Impossible situation requested: Cannot use CGL without the OpenGL library')
endif
elif need_platform_cgl == 'no' and need_win_cocoa == 'yes'
error('Impossible situation requested: Cannot use Cocoa without CGL support')
endif
if host_system == 'darwin'
foundation_dep = dependency('appleframeworks', modules : ['Foundation'], required : false)
quartzcore_dep = dependency('appleframeworks', modules : ['QuartzCore'], required : false)
corefoundation_dep = dependency('appleframeworks', modules : ['CoreFoundation'], required : false)
if need_platform_cgl != 'no'
if foundation_dep.found() and quartzcore_dep.found() and corefoundation_dep.found()
gl_platform_deps += [quartzcore_dep, corefoundation_dep, foundation_dep]
enabled_gl_platforms += 'cgl'
glconf.set('GST_GL_HAVE_PLATFORM_CGL', 1)
if need_win_cocoa != 'no'
cocoa_dep = dependency('appleframeworks', modules : ['Cocoa'], required : false)
if cocoa_dep.found()
gl_priv_sources += [
'cocoa/gstglcaopengllayer.m',
'cocoa/gstglcontext_cocoa.m',
'cocoa/gstgldisplay_cocoa.m',
'cocoa/gstglwindow_cocoa.m'
]
gl_winsys_deps += cocoa_dep
enabled_gl_winsys += 'cocoa'
glconf.set('GST_GL_HAVE_WINDOW_COCOA', 1)
elif need_win_cocoa == 'yes'
error('Could not find Cocoa')
endif
endif
elif need_platform_cgl == 'yes'
error('Could not find CGL dependencies')
endif
endif
endif
if need_platform_eagl == 'yes'
if host_system != 'ios'
error('Can only use EAGL on iOS')
endif
if need_win_eagl == 'no'
error('Impossible situation requested: Cannot use EAGL platform without the EAGL window system')
elif need_api_gles == 'no'
error('Impossible situation requested: Cannot use EAGL platform without the GLES library')
endif
elif need_platform_eagl == 'no' and need_win_eagl == 'yes'
error('Impossible situation requested: Cannot use EAGL window system without the EAGL platform')
endif
if host_system == 'ios' and need_platform_eagl != 'no' and need_win_eagl != 'no'
foundation_dep = dependency('appleframeworks', modules : ['Foundation'], required : false)
corefoundation_dep = dependency('appleframeworks', modules : ['CoreFoundation'], required : false)
coregraphics_dep = dependency('appleframeworks', modules : ['CoreGraphics'], required : false)
quartzcore_dep = dependency('appleframeworks', modules : ['QuartzCore'], required : false)
uikit_dep = dependency('appleframeworks', modules : ['UIkit'], required : false)
if foundation_dep.found() and corefoundation_dep.found() and coregraphics_dep.found() and quartzcore_dep.found() and uikit_dep.found()
gl_platform_deps += [
corefoundation_dep,
foundation_dep,
coregraphics_dep,
quartzcore_dep,
uikit_dep,
]
gl_priv_sources += [
'eagl/gstglcontext_eagl.m',
'eagl/gstglwindow_eagl.m',
]
enabled_gl_winsys += 'eagl'
enabled_gl_platforms += 'eagl'
glconf.set('GST_GL_HAVE_WINDOW_EAGL', 1)
glconf.set('GST_GL_HAVE_PLATFORM_EAGL', 1)
elif need_platform_eagl == 'yes' or need_win_eagl == 'yes'
error('Could not find dependencies for EAGL')
endif
endif
# GBM Checks
gbm_gudev_dep = unneeded_dep
gbm_libdrm_dep = unneeded_dep
gbm_dep = unneeded_dep
if need_win_gbm != 'no'
if need_win_gbm == 'yes'
if need_platform_egl == 'no'
error('Impossible situation requested: Cannot use GBM without EGL support')
endif
endif
gbm_gudev_dep = dependency('gudev-1.0', version : '>=147', required : false, allow_fallback: true)
gbm_libdrm_dep = dependency('libdrm', version : '>= 2.4.55', required : false)
gbm_dep = dependency('gbm', required : false)
if egl_dep.found() and gbm_gudev_dep.found() and gbm_libdrm_dep.found() and gbm_dep.found()
gl_priv_sources += [
'gbm/gstgldisplay_gbm.c',
'gbm/gstgl_gbm_utils.c',
'gbm/gstglwindow_gbm_egl.c',
]
enabled_gl_winsys += 'gbm'
gl_winsys_deps += [gbm_gudev_dep, gbm_libdrm_dep, gbm_dep]
glconf.set('GST_GL_HAVE_WINDOW_GBM', 1)
else
if need_win_gbm == 'yes'
error ('Could not find requested GBM libraries')
endif
gbm_gudev_dep = unneeded_dep
gbm_libdrm_dep = unneeded_dep
gbm_dep = unneeded_dep
endif
endif
if cc.has_function ('glTexDirectVIV', dependencies : gles2_dep)
glconf.set('GST_GL_HAVE_VIV_DIRECTVIV', 1)
endif
if need_platform_egl != 'no' and need_win_viv_fb != 'no'
if egl_dep.found() and cc.has_function ('fbGetDisplay', dependencies : egl_dep)
enabled_gl_winsys += 'viv-fb'
glconf.set('GST_GL_HAVE_WINDOW_VIV_FB', 1)
gl_priv_sources += files([
'viv-fb/gstgldisplay_viv_fb.c',
'viv-fb/gstglwindow_viv_fb_egl.c',
])
gl_viv_fb_sources += files([
'viv-fb/gstgldisplay_viv_fb.c',
])
gl_cpp_args += ['-DEGL_API_FB']
gl_viv_fb_headers = files([
'viv-fb/gstglviv-fb.h',
'viv-fb/gstgldisplay_viv_fb.h',
])
endif
endif
if need_win_android == 'yes'
if need_platform_egl == 'no'
error('Impossible situation requested: Cannot build for Android without EGL')
elif need_api_gles2 == 'no'
error('Impossible situation requested: Cannot build for Android without GLES2 support')
elif host_system != 'android'
error('Impossible situation requested: Cannot build for Android without an android system')
endif
endif
if host_system == 'android' and need_win_android != 'no' and need_platform_egl != 'no'
if gles2_dep.found() and egl_dep.found()
enabled_gl_winsys += ['android']
glconf.set('GST_GL_HAVE_WINDOW_ANDROID', 1)
gl_priv_sources += [
'android/gstglwindow_android_egl.c'
]
endif
endif
gl_nvmm = false
nvbuf_utils_dep = unneeded_dep
if egl_dep.found()
# XXX: provide options for this?
# c_args and c_link_args can also cover this case just fine e.g.:
# -Dc_args='-I/usr/src/jetson_multimedia_api/include' -Dc_link_args='-L/usr/lib/aarch64-linux-gnu/tegra/'
nvbuf_utils_dep = cc.find_library('nvbuf_utils', required : false)
nvbuf_utils_h = cc.has_header('nvbuf_utils.h')
if nvbuf_utils_dep.found() and nvbuf_utils_h
gl_misc_deps += [nvbuf_utils_dep]
gl_nvmm = true
gl_cpp_args += ['-DHAVE_NVMM']
endif
endif
build_gstgl = true
if enabled_gl_apis.length() == 0
message('No OpenGL API libraries found or requested')
build_gstgl = false
endif
if enabled_gl_platforms.length() == 0
message('No OpenGL Platforms found or requested')
build_gstgl = false
endif
if enabled_gl_winsys.length() == 0
message('No OpenGL Window systems found or requested')
build_gstgl = false
endif
if build_gstgl
# find some types that may or may not be defined
if cc.has_type('GLeglImageOES', prefix : gl_include_block, dependencies : gl_lib_deps, include_directories : gl_includes)
glconf.set('GST_GL_HAVE_GLEGLIMAGEOES', 1)
endif
if cc.has_type('GLchar', prefix : gl_include_block, dependencies : gl_lib_deps, include_directories : gl_includes)
glconf.set('GST_GL_HAVE_GLCHAR', 1)
endif
if cc.has_type('GLsizeiptr', prefix : gl_include_block, dependencies : gl_lib_deps, include_directories : gl_includes)
glconf.set('GST_GL_HAVE_GLSIZEIPTR', 1)
endif
if cc.has_type('GLintptr', prefix : gl_include_block, dependencies : gl_lib_deps, include_directories : gl_includes)
glconf.set('GST_GL_HAVE_GLINTPTR', 1)
endif
if cc.has_type('GLsync', prefix : gl_include_block, dependencies : gl_lib_deps, include_directories : gl_includes)
glconf.set('GST_GL_HAVE_GLSYNC', 1)
endif
if cc.has_type('GLuint64', prefix : gl_include_block, dependencies : gl_lib_deps, include_directories : gl_includes)
glconf.set('GST_GL_HAVE_GLUINT64', 1)
endif
if cc.has_type('GLint64', prefix : gl_include_block, dependencies : gl_lib_deps, include_directories : gl_includes)
glconf.set('GST_GL_HAVE_GLINT64', 1)
endif
if egl_dep.found() and cc.has_type('EGLAttrib', prefix : gl_include_block + egl_includes, dependencies : gl_lib_deps + [egl_dep], include_directories : gl_includes)
glconf.set('GST_GL_HAVE_EGLATTRIB', 1)
endif
if egl_dep.found() and cc.has_type('EGLuint64KHR', prefix : gl_include_block + egl_includes, dependencies : gl_lib_deps + [egl_dep], include_directories : gl_includes)
glconf.set('GST_GL_HAVE_EGLUINT64KHR', 1)
endif
summary('GL api', enabled_gl_apis, list_sep: ', ')
summary('GL platform', enabled_gl_platforms, list_sep: ', ')
summary('GL winsys', enabled_gl_winsys, list_sep: ', ')
install_headers(gl_headers, subdir : 'gstreamer-1.0/gst/gl')
install_headers(gl_prototype_headers, subdir : 'gstreamer-1.0/gst/gl/glprototypes')
configure_file(input : 'gstglconfig.h.meson',
output : 'gstglconfig.h',
install_dir : get_option('libdir') + '/gstreamer-1.0/include/gst/gl',
install_tag : 'devel',
configuration : glconf)
glib_mkenums = find_program('glib-mkenums')
mkenums = find_program('gl_mkenum.py')
gl_enumtypes_h = custom_target('gstglenumtypes_h',
output : 'gl-enumtypes.h',
input : gir_gl_headers,
install : true,
install_dir : join_paths(get_option('includedir'), 'gstreamer-1.0/gst/gl/'),
command : [mkenums, glib_mkenums, '@OUTPUT@', '@INPUT@'])
gl_enumtypes_c = custom_target('gstglenumtypes_c',
output : 'gl-enumtypes.c',
input : gir_gl_headers,
depends : [gl_enumtypes_h],
command : [mkenums, glib_mkenums, '@OUTPUT@', '@INPUT@'])
gen_sources = [gl_enumtypes_h]
common_args = gst_plugins_base_args + gl_cpp_args + ['-DBUILDING_GST_GL', '-DG_LOG_DOMAIN="GStreamer-GL"']
# We have custom_target() that generate headers in the current build dir,
# but with implicit_include_directories: false, meson >= 0.58.0 won't include
# it by default. We cannot use include_directories('.') here because it would
# also include current source dir which is what we want to avoid because
# case-insensitive FS would include gst-libs/gl/egl/egl.h as EGL/egl.h.
common_args += '-I@0@'.format(meson.current_build_dir())
gstgl = library('gstgl-' + api_version,
gl_sources, gl_egl_sources, gl_x11_sources, gl_wayland_sources, gl_viv_fb_sources, gl_priv_sources, gl_enumtypes_c, gl_enumtypes_h,
c_args : common_args,
cpp_args : common_args,
objc_args : common_args + gl_objc_args,
include_directories : [configinc, libsinc, gl_includes],
version : libversion,
soversion : soversion,
darwin_versions : osxversion,
install : true,
dependencies : [gst_base_dep, video_dep, allocators_dep, gmodule_dep,
gl_lib_deps, gl_platform_deps, gl_winsys_deps, gl_misc_deps],
# don't confuse EGL/egl.h with gst-libs/gl/egl/egl.h on case-insensitive file systems
implicit_include_directories : false)
pkgconfig_gl_variables = [
'gl_platforms=' + ' '.join(enabled_gl_platforms),
'gl_winsys=' + ' '.join(enabled_gl_winsys),
'gl_apis=' + ' '.join(enabled_gl_apis),
]
library_def = {'lib': gstgl}
pkg_name = 'gstreamer-gl-1.0'
pkgconfig.generate(gstgl,
libraries : [gstvideo, gst_base_dep, gst_dep],
variables : pkgconfig_variables + pkgconfig_gl_variables,
uninstalled_variables : pkgconfig_gl_variables,
subdirs : pkgconfig_subdirs,
extra_cflags : ['-I${libdir}/gstreamer-1.0/include'],
name : pkg_name,
description : 'Streaming media framework, OpenGL plugins libraries',
)
# Desperate times, desperate measures... fix up escaping of our variables
run_command(meson_pkg_config_file_fixup_script,
'gstreamer-gl-1.0', 'gl_platforms', 'gl_winsys', 'gl_apis',
check: true)
pkgconfig.generate(
libraries : [gstgl, gl_lib_deps],
subdirs : pkgconfig_subdirs,
name : 'gstreamer-gl-prototypes-1.0',
description : 'Streaming media framework, OpenGL plugins libraries (OpenGL Prototypes)',
)
if build_gir
gir = {
'sources' : gl_sources + [gl_enumtypes_h] + [gl_enumtypes_c] + gir_gl_headers,
'namespace' : 'GstGL',
'nsversion' : api_version,
'identifier_prefix' : 'Gst',
'symbol_prefix' : 'gst',
'export_packages' : pkg_name,
'includes' : ['Gst-1.0', 'GstBase-1.0', 'GstVideo-1.0'],
'install' : true,
'extra_args' : gir_init_section + ['--c-include=gst/gl/gl.h'],
'dependencies' : [video_dep, gst_dep, gst_base_dep],
}
library_def += {'gir': [gir]}
if not static_build
gl_gir = gnome.generate_gir(gstgl, kwargs: gir)
library_def += {'gir_targets': library_def.get('gir_targets', []) + [gl_gir]}
library_def += {'gir': [gir]}
gen_sources += [gl_gir]
endif
endif
gst_libraries += [[pkg_name, library_def]]
gstgl_dep = declare_dependency(link_with : gstgl,
include_directories : [libsinc, compat_includes],
sources: gen_sources,
dependencies : [video_dep, gst_base_dep, gl_winsys_deps],
variables: pkgconfig_gl_variables)
gstglproto_dep = declare_dependency(
dependencies : [gstgl_dep] + gl_lib_deps,
sources: gen_sources
)
meson.override_dependency('gstreamer-gl-1.0', gstgl_dep)
meson.override_dependency('gstreamer-gl-prototypes-1.0', gstglproto_dep)
if gl_x11_headers.length() > 0
install_headers(gl_x11_headers, subdir : 'gstreamer-1.0/gst/gl/x11')
pkg_name = 'gstreamer-gl-x11-1.0'
pkgconfig.generate(
libraries : [gstgl],
requires: ['x11-xcb'],
subdirs : pkgconfig_subdirs,
name : pkg_name,
description : 'Streaming media framework, OpenGL plugins libraries (X11 specifics)',
)
gl_x11_gir = []
if build_gir
gir = {
'sources' : gl_x11_sources + gl_x11_headers,
'namespace' : 'GstGLX11',
'nsversion' : api_version,
'identifier_prefix' : 'Gst',
'symbol_prefix' : 'gst',
'export_packages' : 'gstreamer-gl-x11-1.0',
'includes' : ['Gst-1.0', 'GstBase-1.0', 'GstVideo-1.0'],
'install' : true,
'extra_args' : gir_init_section + ['--c-include=gst/gl/x11/x11.h'],
'dependencies' : [video_dep, gst_dep, gst_base_dep]
}
gir_dict = gir + {'includes': gir['includes'] + ['GstGL-1.0']}
gst_libraries += [[pkg_name, {'gir': gir_dict}]]
if not static_build
gir += {'includes': gir['includes'] + [gl_gir[0]]}
gl_x11_gir = gnome.generate_gir(gstgl, kwargs: gir)
library_def += {'gir_targets': library_def.get('gir_targets', []) + [gl_x11_gir]}
endif
endif
gstglx11_dep = declare_dependency(dependencies : [gstgl_dep, x11_dep, xcb_dep],
sources : gl_x11_gir)
meson.override_dependency('gstreamer-gl-x11-1.0', gstglx11_dep)
endif
if gl_wayland_headers.length() > 0
install_headers(gl_wayland_headers, subdir : 'gstreamer-1.0/gst/gl/wayland')
pkg_name = 'gstreamer-gl-wayland-1.0'
pkgconfig.generate(
libraries : [gstgl],
requires: ['wayland-egl', 'wayland-client'],
subdirs : pkgconfig_subdirs,
name : pkg_name,
description : 'Streaming media framework, OpenGL plugins libraries (Wayland specifics)',
)
gl_wayland_gir = []
if build_gir
gir = {
'sources' : gl_wayland_sources + gl_wayland_headers,
'namespace' : 'GstGLWayland',
'nsversion' : api_version,
'identifier_prefix' : 'Gst',
'symbol_prefix' : 'gst',
'export_packages' : 'gstreamer-gl-wayland-1.0',
'includes' : ['Gst-1.0', 'GstBase-1.0', 'GstVideo-1.0'],
'install' : true,
'extra_args' : gir_init_section + ['--c-include=gst/gl/wayland/wayland.h'],
'dependencies' : [video_dep, gst_dep, gst_base_dep]
}
gir_dict = gir + {'includes': gir['includes'] + ['GstGL-1.0']}
gst_libraries += [[pkg_name, {'gir': gir_dict}]]
if not static_build
gir += {'includes': gir['includes'] + [gl_gir[0]]}
gl_wayland_gir = gnome.generate_gir(gstgl, kwargs: gir)
library_def += {'gir_targets': library_def.get('gir_targets', []) + [gl_wayland_gir]}
endif
endif
gstglwayland_dep = declare_dependency(dependencies : [gstgl_dep],
sources : gl_wayland_gir)
meson.override_dependency(pkg_name, gstglwayland_dep)
endif
if gl_egl_headers.length() > 0
install_headers(gl_egl_headers, subdir : 'gstreamer-1.0/gst/gl/egl')
pkg_name = 'gstreamer-gl-egl-1.0'
pkgconfig.generate(
libraries : [gstgl, egl_dep],
subdirs : pkgconfig_subdirs,
name : pkg_name,
description : 'Streaming media framework, OpenGL plugins libraries (EGL specifics)',
)
gl_egl_gir = []
if build_gir
gir = {
'sources' : gl_egl_sources + gl_egl_headers,
'namespace' : 'GstGLEGL',
'nsversion' : api_version,
'identifier_prefix' : 'Gst',
'symbol_prefix' : 'gst',
'export_packages' : pkg_name,
'includes' : ['Gst-1.0', 'GstBase-1.0', 'GstVideo-1.0'],
'install' : true,
'extra_args' : gir_init_section + ['--c-include=gst/gl/egl/egl.h'],
'dependencies' : [video_dep, gst_dep, gst_base_dep]
}
gir_dict = gir + {'includes': gir['includes'] + ['GstGL-1.0']}
gst_libraries += [[pkg_name, {'gir': gir_dict}]]
if not static_build
gir += {'includes': gir['includes'] + [gl_gir[0]]}
gl_egl_gir = gnome.generate_gir(gstgl, kwargs: gir)
library_def += {'gir_targets': library_def.get('gir_targets', []) + [gl_egl_gir]}
endif
endif
gstglegl_dep = declare_dependency(dependencies : [gstgl_dep],
sources : gl_egl_gir)
meson.override_dependency(pkg_name, gstglegl_dep)
endif
if gl_viv_fb_headers.length() > 0
install_headers(gl_viv_fb_headers, subdir : 'gstreamer-1.0/gst/gl/viv-fb')
pkg_name = 'gstreamer-gl-viv-fb-1.0'
pkgconfig.generate(
libraries : [gstgl],
subdirs : pkgconfig_subdirs,
name : pkg_name,
description : 'Streaming media framework, OpenGL plugins libraries (Vivante Framebuffer specifics)',
)
gl_viv_fb_gir = []
if build_gir
gir = {
'sources' : gl_viv_fb_sources + gl_viv_fb_headers,
'namespace' : 'GstGLVivFB',
'nsversion' : api_version,
'identifier_prefix' : 'Gst',
'symbol_prefix' : 'gst',
'export_packages' : pkg_name,
'includes' : ['Gst-1.0', 'GstBase-1.0', 'GstVideo-1.0'],
'install' : true,
'extra_args' : gir_init_section + ['--c-include=gst/gl/viv-fb/gstglviv-fb.h'],
'dependencies' : [video_dep, gst_dep, gst_base_dep]
}
gir_dict = gir + {'includes': gir['includes'] + ['GstGL-1.0']}
gst_libraries += [[pkg_name, {'gir': gir_dict}]]
if not static_build
gir += {'includes': gir['includes'] + [gl_gir[0]]}
gl_viv_fb_gir = gnome.generate_gir(gstgl, kwargs: gir)
library_def += {'gir_targets': library_def.get('gir_targets', []) + [gl_viv_fb_gir]}
endif
endif
gstglviv_fb_dep = declare_dependency(dependencies : [gstgl_dep],
sources : gl_viv_fb_gir)
meson.override_dependency(pkg_name, gstglviv_fb_dep)
endif
elif get_option('gl').enabled()
error('GStreamer OpenGL integration required via options, but needed dependencies not found.')
endif
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