Framebuffer

CMakeLists.txt

@@ -297,6 +297,10 @@ OCV_OPTION(WITH_GTK "Include GTK support" ON
 OCV_OPTION(WITH_GTK_2_X "Use GTK version 2" OFF
   VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID
   VERIFY HAVE_GTK AND NOT HAVE_GTK3)
+
+OCV_OPTION(WITH_FRAMEBUFFER "Include framebuffer support" OFF
+  VISIBLE_IF UNIX VERIFY HAVE_FRAMEBUFFER)
+
 OCV_OPTION(WITH_WAYLAND "Include Wayland support" OFF
         VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID
         VERIFY HAVE_WAYLAND)

modules/highgui/CMakeLists.txt

@@ -39,6 +39,17 @@ if(HAVE_WEBP)
   add_definitions(-DHAVE_WEBP)
 endif()
 
+
+if(WITH_FRAMEBUFFER)
+  message(WITH_FRAMEBUFFER="${WITH_FRAMEBUFFER}")
+  add_definitions(-DHAVE_FRAMEBUFFER)
+  list(APPEND highgui_srcs ${CMAKE_CURRENT_LIST_DIR}/src/window_framebuffer.cpp)
+  list(APPEND highgui_hdrs ${CMAKE_CURRENT_LIST_DIR}/src/window_framebuffer.hpp)
+else()
+  message(WITH_FRAMEBUFFER="${WITH_FRAMEBUFFER}")
+endif()
+
+
 file(GLOB highgui_ext_hdrs
      "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/*.hpp"
      "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/*.hpp"
@@ -180,6 +191,9 @@ elseif(HAVE_COCOA)
   list(APPEND HIGHGUI_LIBRARIES "-framework Cocoa")
 endif()
 
+
+
+
 if(TARGET ocv.3rdparty.win32ui)
   if("win32ui" IN_LIST HIGHGUI_PLUGIN_LIST OR HIGHGUI_PLUGIN_LIST STREQUAL "all")
     ocv_create_builtin_highgui_plugin(opencv_highgui_win32 ocv.3rdparty.win32ui "window_w32.cpp")

modules/highgui/src/backend.hpp

@@ -126,6 +126,11 @@ std::shared_ptr<UIBackend> createUIBackendGTK();
 std::shared_ptr<UIBackend> createUIBackendQT();
 #endif
 
+#ifdef HAVE_FRAMEBUFFER
+std::shared_ptr<UIBackend> createUIBackendFramebuffer();
+#endif
+
+
 #endif  // BUILD_PLUGIN
 
 }  // namespace highgui_backend

modules/highgui/src/registry.impl.hpp

@@ -44,6 +44,11 @@ std::vector<BackendInfo>& getBuiltinBackendsInfo()
         DECLARE_DYNAMIC_BACKEND("GTK2")
 #endif
 
+#ifdef HAVE_FRAMEBUFFER
+        DECLARE_STATIC_BACKEND("Framebuffer", createUIBackendFramebuffer)
+#endif
+
+
 #if 0  // TODO
 #ifdef HAVE_QT
         DECLARE_STATIC_BACKEND("QT", createUIBackendQT)