opencv/modules/highgui/cmake/detect_wayland.cmake
Kumataro 2a2ff55257
Merge pull request #25496 from Kumataro:fix25495
highgui: wayland: show "NO" status if dependency is missing #25496

Close #25495

- [doc] Add document to enable Wayland highgui-backend in ubuntu 24.04.
- [build] Show "NO" status instead of version if dependency library is missing.
- [build] Fix to find Wayland EGL.
- [fix] Add some callback stub functions to suppress build warning.

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [ ] I agree to contribute to the project under Apache 2 License.
- [ ] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [ ] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
2024-04-29 18:58:29 +03:00

42 lines
1.6 KiB
CMake

# --- Wayland ---
macro(ocv_wayland_generate protocol_file output_file)
add_custom_command(OUTPUT ${output_file}.h
COMMAND ${WAYLAND_SCANNER_EXECUTABLE} client-header < ${protocol_file} > ${output_file}.h
DEPENDS ${protocol_file})
add_custom_command(OUTPUT ${output_file}.c
COMMAND ${WAYLAND_SCANNER_EXECUTABLE} private-code < ${protocol_file} > ${output_file}.c
DEPENDS ${protocol_file})
list(APPEND WAYLAND_PROTOCOL_SOURCES ${output_file}.h ${output_file}.c)
endmacro()
ocv_clear_vars(HAVE_WAYLAND_CLIENT HAVE_WAYLAND_CURSOR HAVE_XKBCOMMON HAVE_WAYLAND_PROTOCOLS HAVE_WAYLAND_EGL)
if(WITH_WAYLAND)
ocv_check_modules(WAYLAND_CLIENT wayland-client)
if(WAYLAND_CLIENT_FOUND)
set(HAVE_WAYLAND_CLIENT ON)
endif()
ocv_check_modules(WAYLAND_CURSOR wayland-cursor)
if(WAYLAND_CURSOR_FOUND)
set(HAVE_WAYLAND_CURSOR ON)
endif()
ocv_check_modules(XKBCOMMON xkbcommon)
if(XKBCOMMON_FOUND)
set(HAVE_XKBCOMMON ON)
endif()
ocv_check_modules(WAYLAND_PROTOCOLS wayland-protocols>=1.13)
if(HAVE_WAYLAND_PROTOCOLS)
pkg_get_variable(WAYLAND_PROTOCOLS_BASE wayland-protocols pkgdatadir)
find_host_program(WAYLAND_SCANNER_EXECUTABLE NAMES wayland-scanner REQUIRED)
endif()
if(HAVE_WAYLAND_CLIENT AND HAVE_WAYLAND_CURSOR AND HAVE_XKBCOMMON AND HAVE_WAYLAND_PROTOCOLS)
set(HAVE_WAYLAND TRUE)
endif()
# WAYLAND_EGL is option
ocv_check_modules(WAYLAND_EGL wayland-egl)
if(WAYLAND_EGL_FOUND)
set(HAVE_WAYLAND_EGL ON)
endif()
endif()