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Highgui backend on top of Framebuffer #25661 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [ x] I agree to contribute to the project under Apache 2 License. - [ x] 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 - [ x] The PR is proposed to the proper branch - [ ] There is a reference to the original bug report and related work - [ x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ x] The feature is well documented and sample code can be built with the project CMake Environment variables used: OPENCV_UI_BACKEND - you need to add the value “FB” OPENCV_UI_PRIORITY_FB - requires priority indication OPENCV_HIGHGUI_FB_MODE={FB|XVFB|EMU} - mode of using Framebuffer (default "FB") - FB - Linux Framebuffer - XVFB - virtual Framebuffer - EMU - emulation (images are not displayed) OPENCV_HIGHGUI_FB_DEVICE (FRAMEBUFFER) - path to the Framebuffer file (default "/dev/fb0"). Examples of using: sudo OPENCV_UI_BACKEND=FB ./opencv_test_highgui sudo OPENCV_UI_PRIORITY_FB=1111 ./opencv_test_highgui OPENCV_UI_BACKEND=FB OPENCV_HIGHGUI_FB_MODE=EMU ./opencv_test_highgui sudo OPENCV_UI_BACKEND=FB OPENCV_HIGHGUI_FB_MODE=FB ./opencv_test_highgui export DISPLAY=:99 Xvfb $DISPLAY -screen 0 1024x768x24 -fbdir /tmp/ -f /tmp/user.xvfb.auth& sudo -u sipeed XAUTHORITY=/tmp/user.xvfb.auth x11vnc -display $DISPLAY -listen localhost& DISPLAY=:0 gvncviewer localhost& FRAMEBUFFER=/tmp/Xvfb_screen0 OPENCV_UI_BACKEND=FB OPENCV_HIGHGUI_FB_MODE=XVFB ./opencv_test_highgui
49 lines
1.6 KiB
CMake
49 lines
1.6 KiB
CMake
if(PROJECT_NAME STREQUAL "OpenCV")
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set(ENABLE_PLUGINS_DEFAULT ON)
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if(EMSCRIPTEN OR IOS OR WINRT)
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set(ENABLE_PLUGINS_DEFAULT OFF)
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endif()
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set(HIGHGUI_PLUGIN_LIST "" CACHE STRING "List of GUI backends to be compiled as plugins (gtk, gtk2/gtk3, qt, win32 or special value 'all')")
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set(HIGHGUI_ENABLE_PLUGINS "${ENABLE_PLUGINS_DEFAULT}" CACHE BOOL "Allow building and using of GUI plugins")
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mark_as_advanced(HIGHGUI_PLUGIN_LIST HIGHGUI_ENABLE_PLUGINS)
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string(REPLACE "," ";" HIGHGUI_PLUGIN_LIST "${HIGHGUI_PLUGIN_LIST}") # support comma-separated list (,) too
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string(TOLOWER "${HIGHGUI_PLUGIN_LIST}" HIGHGUI_PLUGIN_LIST)
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if(NOT HIGHGUI_ENABLE_PLUGINS)
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if(HIGHGUI_PLUGIN_LIST)
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message(WARNING "HighGUI: plugins are disabled through HIGHGUI_ENABLE_PLUGINS, so HIGHGUI_PLUGIN_LIST='${HIGHGUI_PLUGIN_LIST}' is ignored")
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set(HIGHGUI_PLUGIN_LIST "")
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endif()
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else()
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# Make virtual plugins target
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if(NOT TARGET opencv_highgui_plugins)
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add_custom_target(opencv_highgui_plugins ALL)
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endif()
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endif()
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endif()
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#
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# Detect available dependencies
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#
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if(NOT PROJECT_NAME STREQUAL "OpenCV")
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include(FindPkgConfig)
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endif()
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macro(add_backend backend_id cond_var)
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if(${cond_var})
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include("${CMAKE_CURRENT_LIST_DIR}/detect_${backend_id}.cmake")
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endif()
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endmacro()
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add_backend("gtk" WITH_GTK)
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add_backend("win32ui" WITH_WIN32UI)
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add_backend("wayland" WITH_WAYLAND)
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add_backend("framebuffer" WITH_FRAMEBUFFER)
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# TODO cocoa
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# TODO qt
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# TODO opengl
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# FIXIT: move content of cmake/OpenCVFindLibsGUI.cmake here (need to resolve CMake scope issues)
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