Added configuration changes enabling videoio WinRT support.

Signed-off-by: Maxim Kostin <v-maxkos@microsoft.com>

CMakeLists.txt

@@ -45,6 +45,24 @@ endif(CMAKE_SYSTEM_NAME MATCHES WindowsPhone OR CMAKE_SYSTEM_NAME MATCHES Window
 
 if(WINRT)
   add_definitions(-DWINRT -DNO_GETENV)
+
+  # Making definitions available to other configurations and
+  # to filter dependency restrictions at compile time.
+  if(CMAKE_SYSTEM_NAME MATCHES WindowsPhone)
+    set(WINRT_PHONE TRUE)
+    add_definitions(-DWINRT_PHONE)
+  elseif(CMAKE_SYSTEM_NAME MATCHES WindowsStore)
+    set(WINRT_STORE TRUE)
+    add_definitions(-DWINRT_STORE)
+  endif()
+
+  if(CMAKE_SYSTEM_VERSION MATCHES 8.1)
+    set(WINRT_8_1 TRUE)
+    add_definitions(-DWINRT_8_1)
+  elseif(CMAKE_SYSTEM_VERSION MATCHES 8.0)
+    set(WINRT_8_0 TRUE)
+    add_definitions(-DWINRT_8_0)
+  endif()
 endif()
 
 if(POLICY CMP0022)

modules/videoio/CMakeLists.txt

-if(WINRT)
-  ocv_module_disable(videoio)
-endif()
-
 set(the_description "Media I/O")
 ocv_add_module(videoio opencv_imgproc opencv_imgcodecs OPTIONAL opencv_androidcamera WRAP java python)
 
@@ -11,7 +7,7 @@ ocv_add_module(videoio opencv_imgproc opencv_imgcodecs OPTIONAL opencv_androidca
 #   Jose Luis Blanco, 2008
 # ----------------------------------------------------------------------------
 
-if(HAVE_WINRT_CX AND NOT WINRT)
+if(WINRT_8_1)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /ZW")
 endif()
 
@@ -36,6 +32,36 @@ file(GLOB videoio_ext_hdrs
     "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/*.hpp"
     "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/*.h")
 
+# Removing WinRT API headers by default
+status("  ${name}: Removing WinRT API headers by default")
+list(REMOVE_ITEM videoio_ext_hdrs "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/cap_winrt.hpp")
+
+# Dependencies used by the implementation referenced
+# below are not available on WinRT 8.0.
+# Enabling it for WiRT 8.1+ only.
+if(DEFINED WINRT AND NOT DEFINED WINRT_8_0)
+
+    # WinRT detected. Adding WinRT API header
+    status("  ${name}: WinRT detected. Adding WinRT API header")
+    list(APPEND videoio_ext_hdrs "${CMAKE_CURRENT_LIST_DIR}/include/opencv2/${name}/cap_winrt.hpp")
+
+    # Adding WinRT internal sources and headers
+    list(APPEND videoio_srcs
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt_capture.cpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt_bridge.cpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt_video.cpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt/CaptureFrameGrabber.cpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt/MediaStreamSink.cpp)
+    list(APPEND videoio_hdrs
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt_capture.hpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt_bridge.hpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt_video.hpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt/MFIncludes.hpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt/CaptureFrameGrabber.hpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt/MediaSink.hpp
+        ${CMAKE_CURRENT_LIST_DIR}/src/cap_winrt/MediaStreamSink.hpp)
+endif()
+
 if(WIN32 AND NOT ARM)
   list(APPEND videoio_srcs ${CMAKE_CURRENT_LIST_DIR}/src/cap_cmu.cpp)
 endif()

modules/videostab/CMakeLists.txt

@@ -4,5 +4,9 @@ if(HAVE_CUDA)
   ocv_warnings_disable(CMAKE_CXX_FLAGS -Wundef -Wmissing-declarations -Wshadow -Wunused-parameter)
 endif()
 
+if(WINRT_8_1)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /ZW")
+endif()
+
 ocv_define_module(videostab opencv_imgproc opencv_features2d opencv_video opencv_photo opencv_calib3d
 OPTIONAL opencv_cudawarping opencv_cudaoptflow opencv_videoio WRAP python)