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set(PRESENTATION_BACKENDS xlib xcb wayland)
set(PRESENTATION_BACKEND xlib CACHE STRING
"Presentation backend chosen at configure time")
set_property(CACHE PRESENTATION_BACKEND PROPERTY STRINGS
${PRESENTATION_BACKENDS})
list(FIND PRESENTATION_BACKENDS ${PRESENTATION_BACKEND} index)
if(index EQUAL -1)
message(FATAL_ERROR "Presentation backend must be one of
${PRESENTATION_BACKENDS}")
endif()
message(STATUS "Using presentation backend: ${PRESENTATION_BACKEND}")
if( PRESENTATION_BACKEND MATCHES "xlib" )
find_package(X11 REQUIRED)
if ((NOT X11_Xxf86vm_LIB) OR (NOT X11_Xrandr_LIB))
message(FATAL_ERROR "OpenXR xlib backend requires Xxf86vm and Xrandr")
endif()
add_definitions( -DSUPPORT_X )
add_definitions( -DOS_LINUX_XLIB )
set( XLIB_LIBRARIES
${X11_LIBRARIES}
${X11_Xxf86vm_LIB}
${X11_Xrandr_LIB} )
elseif( PRESENTATION_BACKEND MATCHES "xcb" )
find_package(PkgConfig REQUIRED)
# XCB + XCB GLX is limited to OpenGL 2.1
# add_definitions( -DOS_LINUX_XCB )
# XCB + Xlib GLX 1.3
add_definitions( -DOS_LINUX_XCB_GLX )
pkg_search_module(X11 REQUIRED x11)
pkg_search_module(XCB REQUIRED xcb)
pkg_search_module(XCB_RANDR REQUIRED xcb-randr)
pkg_search_module(XCB_KEYSYMS REQUIRED xcb-keysyms)
pkg_search_module(XCB_GLX REQUIRED xcb-glx)
pkg_search_module(XCB_DRI2 REQUIRED xcb-dri2)
pkg_search_module(XCB_ICCCM REQUIRED xcb-icccm)
set( XCB_LIBRARIES
${XCB_LIBRARIES}
${XCB_KEYSYMS_LIBRARIES}
${XCB_RANDR_LIBRARIES}
${XCB_GLX_LIBRARIES}
${XCB_DRI2_LIBRARIES}
${X11_LIBRARIES} )
elseif( PRESENTATION_BACKEND MATCHES "wayland" )
find_package(PkgConfig REQUIRED)
pkg_search_module(WAYLAND_CLIENT REQUIRED wayland-client)
pkg_search_module(WAYLAND_EGL REQUIRED wayland-egl)
pkg_search_module(WAYLAND_SCANNER REQUIRED wayland-scanner)
pkg_search_module(WAYLAND_PROTOCOLS REQUIRED wayland-protocols>=1.7)
pkg_search_module(EGL REQUIRED egl)
add_definitions( -DOS_LINUX_WAYLAND )
set( WAYLAND_LIBRARIES
${EGL_LIBRARIES}
${WAYLAND_CLIENT_LIBRARIES}
${WAYLAND_EGL_LIBRARIES} )
# generate wayland protocols
set(WAYLAND_PROTOCOLS_DIR ${CMAKE_SOURCE_DIR}/wayland-protocols/)
file(MAKE_DIRECTORY ${WAYLAND_PROTOCOLS_DIR})
pkg_get_variable(WAYLAND_PROTOCOLS_DATADIR wayland-protocols pkgdatadir)
pkg_get_variable(WAYLAND_SCANNER wayland-scanner wayland_scanner)
set(PROTOCOL xdg-shell-unstable-v6)
set(PROTOCOL_XML
${WAYLAND_PROTOCOLS_DATADIR}/unstable/xdg-shell/${PROTOCOL}.xml)
if( EXISTS ${PROTOCOL_XML} )
execute_process(COMMAND
${WAYLAND_SCANNER}
code
${PROTOCOL_XML}
${WAYLAND_PROTOCOLS_DIR}/${PROTOCOL}.c)
execute_process(COMMAND
${WAYLAND_SCANNER}
client-header
${PROTOCOL_XML}
${WAYLAND_PROTOCOLS_DIR}/${PROTOCOL}.h)
set( WAYLAND_PROTOCOL_SRC
${WAYLAND_PROTOCOLS_DIR}/${PROTOCOL}.c
${WAYLAND_PROTOCOLS_DIR}/${PROTOCOL}.h )
include_directories(${WAYLAND_PROTOCOLS_DIR})
else()
message(FATAL_ERROR
"xdg-shell-unstable-v6.xml not found in "
${WAYLAND_PROTOCOLS_DATADIR}
"\nYour wayland-protocols package does not "
"contain xdg-shell-unstable-v6.")
endif()
endif()
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