if get_option('gl').disabled()
message('GStreamer OpenGL integration disabled via options.')
gstgl_dep = dependency('', required: false)
build_gstgl = false
subdir_done()
endif
gl_sources = [
'gstglapi.c',
'gstglbasefilter.c',
'gstglbasememory.c',
'gstglcolorconvert.c',
'gstglbuffer.c',
'gstglbufferpool.c',
'gstglcontext.c',
'gstgldebug.c',
'gstgldisplay.c',
'gstglfeature.c',
'gstglfilter.c',
'gstglformat.c',
'gstglframebuffer.c',
'gstglmemory.c',
'gstglmemorypbo.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 = [
'gl.h',
'gl-prelude.h',
'gstgl_enums.h',
'gstgl_fwd.h',
'gstglapi.h',
'gstglbasefilter.h',
'gstglbasememory.h',
'gstglbuffer.h',
'gstglbufferpool.h',
'gstglcolorconvert.h',
'gstglcontext.h',
'gstgldebug.h',
'gstgldisplay.h',
'gstglfeature.h',
'gstglfilter.h',
'gstglformat.h',
'gstglframebuffer.h',
'gstglmemory.h',
'gstglmemorypbo.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 + [
'gstglfuncs.h',
]
gl_prototype_headers = [
'glprototypes/all_functions.h',
'glprototypes/base.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_headers = []
gl_wayland_headers = []
gl_win32_headers = []
gl_cocoa_headers = []
gl_egl_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_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.set10(option, false)
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_cocoa = '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_cocoa = '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 == 'cocoa'
need_win_cocoa = '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
if need_api_opengl != 'no' or need_platform_glx != 'no'
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
if host_system == 'darwin'
glx_dep = cc.find_library('GL', required : false)
else
glx_dep = gl_dep
endif
if need_api_opengl == 'no'
gl_dep = unneeded_dep
endif
if need_platform_glx == 'no'
glx_dep = unneeded_dep
endif
opengl_includes = ''
if host_system == 'darwin'
opengl_includes += '''
#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
# 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
gles2_dep = dependency('glesv2', required : false)
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.set10('GST_GL_HAVE_GLES2', 1)
if gles3_h
glconf.set10('GST_GL_HAVE_GLES3', 1)
if gles3ext3_h
glconf.set10('GST_GL_HAVE_GLES3EXT3_H', 1)
endif
endif
enabled_gl_apis += 'gles2'
endif
if gl_dep.found()
gl_lib_deps += gl_dep
glconf.set10('GST_GL_HAVE_OPENGL', 1)
enabled_gl_apis += 'gl'
endif
# EGL checks
egl_dep = unneeded_dep
if need_platform_egl != 'no'
egl_dep = dependency('egl', required : false)
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_sources += [
'egl/gstegl.c',
'egl/gsteglimage.c',
'egl/gstglcontext_egl.c',
'egl/gstgldisplay_egl.c',
'egl/gstglmemoryegl.c',
]
gl_egl_headers += [
'egl/gstegl.h',
'egl/gsteglimage.h',
'egl/gstgldisplay_egl.h',
'egl/gstglmemoryegl.h',
]
gl_platform_deps += egl_dep
glconf.set10('GST_GL_HAVE_PLATFORM_EGL', 1)
if cc.has_header('libdrm/drm_fourcc.h')
gl_misc_deps += allocators_dep
glconf.set10('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
# 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 : '>= 1.0', 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_pkgconfig_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_sources += [
'wayland/gstgldisplay_wayland.c',
'wayland/gstglwindow_wayland_egl.c',
'wayland/wayland_event_source.c',
]
gl_priv_sources += [
xdg_shell_header,
xdg_shell_code,
]
gl_wayland_headers += [
'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
if need_win_x11 != 'no'
xcb_dep = dependency('x11-xcb', required : false)
if x11_dep.found() and xcb_dep.found()
gl_sources += [
'x11/gstgldisplay_x11.c',
'x11/gstglwindow_x11.c',
'x11/xcb_event_source.c',
]
gl_x11_headers += [
'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_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
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
if bcm_host_dep.found()
if not egl_dep.found()
error('dispmanx requires the use of egl')
endif
gl_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 need_platform_wgl != 'no' and need_win_win32 != 'no'
gdi_dep = cc.find_library('gdi32', required : false)
# FIXME: Revert back to has_header once it gains prefix support
wglext_h = cc.has_header('GL/wglext.h',
prefix : '''#include <windows.h>
#include <GL/gl.h>''',
include_directories : compat_includes)
if wglext_h and gdi_dep.found() and gl_dep.found()
gl_includes += [compat_includes]
gl_platform_deps += gdi_dep
gl_sources += [
'win32/gstglwindow_win32.c',
'win32/gstglwindow_win32.c',
'win32/gstglcontext_wgl.c',
]
enabled_gl_winsys += 'win32'
gl_winsys_deps += gdi_dep
enabled_gl_platforms += 'wgl'
glconf.set('GST_GL_HAVE_WINDOW_WIN32', 1)
glconf.set('GST_GL_HAVE_PLATFORM_WGL', 1)
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.set10('GST_GL_HAVE_PLATFORM_CGL', 1)
if need_win_cocoa != 'no'
cocoa_dep = dependency('appleframeworks', modules : ['Cocoa'], required : false)
if cocoa_dep.found()
gl_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.set10('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)
uikit_dep = dependency('appleframeworks', modules : ['UIkit'], required : false)
if foundation_dep.found() and corefoundation_dep.found() and coregraphics_dep.found() and uikit_dep.found()
gl_platform_deps += [
corefoundation_dep,
foundation_dep,
coregraphics_dep,
uikit_dep,
]
gl_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)
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_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 need_platform_egl != 'no' and need_win_viv_fb != 'no'
if egl_dep.found() and cc.has_function ('fbGetDisplay', dependencies : egl_dep)
if cc.has_function ('glTexDirectVIV', dependencies : gles2_dep)
enabled_gl_winsys += 'viv-fb'
glconf.set10('GST_GL_HAVE_WINDOW_VIV_FB', 1)
glconf.set10('GST_GL_HAVE_VIV_DIRECTVIV', 1)
gl_sources += [
'viv-fb/gstgldisplay_viv_fb.c',
'viv-fb/gstglwindow_viv_fb_egl.c',
]
gl_cpp_args += ['-DEGL_API_FB']
endif
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.set10('GST_GL_HAVE_WINDOW_ANDROID', 1)
gl_sources += [
'android/gstglwindow_android_egl.c'
]
endif
endif
# TODO: Add rest of gl config here.
# iOS, specific support
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
message('Building libgstgl with GL api: ' + ' '.join(enabled_gl_apis))
message('Building libgstgl with GL platform: ' + ' '.join(enabled_gl_platforms))
message('Building libgstgl with GL winsys: ' + ' '.join(enabled_gl_winsys))
install_headers(gl_headers, subdir : 'gstreamer-1.0/gst/gl')
install_headers(gl_cocoa_headers, subdir : 'gstreamer-1.0/gst/gl/cocoa')
install_headers(gl_egl_headers, subdir : 'gstreamer-1.0/gst/gl/egl')
install_headers(gl_prototype_headers, subdir : 'gstreamer-1.0/gst/gl/glprototypes')
install_headers(gl_x11_headers, subdir : 'gstreamer-1.0/gst/gl/x11')
install_headers(gl_wayland_headers, subdir : 'gstreamer-1.0/gst/gl/wayland')
configure_file(input : 'gstglconfig.h.meson',
output : 'gstglconfig.h',
install_dir : get_option('libdir') + '/gstreamer-1.0/include/gst/gl',
configuration : glconf)
gl_enums = gnome.mkenums_simple('gl-enumtypes',
sources : gir_gl_headers,
body_prefix : '#ifdef HAVE_CONFIG_H\n#include "config.h"\n#endif',
header_prefix : '#include <gst/gl/gl-prelude.h>',
decorator : 'GST_GL_API',
install_header: true,
install_dir : join_paths(get_option('includedir'), 'gstreamer-1.0/gst/gl'))
gl_enumtypes_c = gl_enums[0]
gl_enumtypes_h = gl_enums[1]
gen_sources = [gl_enumtypes_h]
gstgl = library('gstgl-' + api_version,
gl_sources, gl_priv_sources, gl_enumtypes_c, gl_enumtypes_h,
c_args : gst_plugins_base_args + gl_cpp_args + ['-DBUILDING_GST_GL'],
objc_args : gst_plugins_base_args + gl_cpp_args + gl_objc_args + ['-DBUILDING_GST_GL'],
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])
if build_gir
gl_gir = gnome.generate_gir(gstgl,
sources : gl_sources + [gl_enumtypes_h] + [gl_enumtypes_c] + gir_gl_headers + gl_x11_headers + gl_wayland_headers + gl_win32_headers + gl_cocoa_headers + gl_egl_headers,
namespace : 'GstGL',
nsversion : api_version,
identifier_prefix : 'Gst',
symbol_prefix : 'gst',
export_packages : 'gstreamer-gl-1.0',
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]
)
gen_sources += gl_gir
endif
gstgl_dep = declare_dependency(link_with : gstgl,
include_directories : [libsinc, compat_includes],
sources: gen_sources,
dependencies : [video_dep, gst_base_dep] + gl_winsys_deps)
elif get_option('gl').enabled()
error('GStreamer OpenGL integration required via options, but needed dependencies not found.')
else
gstgl_dep = dependency('', required : false)
endif