Added generation of OpenCV.mk file for Android development with ndk-build tool

CMakeLists.txt

@@ -1230,6 +1230,49 @@ if(WIN32)
     install(FILES "${CMAKE_BINARY_DIR}/cvconfig.h" DESTINATION "${CMAKE_INSTALL_PREFIX}/include")
 endif()
 
+# --------------------------------------------------------------------------------------------
+#  Installation for Android ndk-build makefile:  OpenCV.mk
+#  Part 1/2: ${BIN_DIR}/OpenCV.mk              -> For use *without* "make install"
+#  Part 2/2: ${BIN_DIR}/unix-install/OpenCV.mk -> For use with "make install"
+# -------------------------------------------------------------------------------------------
+if(ANDROID)
+    if(BUILD_SHARED_LIBS)
+        SET(OPENCV_LIBTYPE_CONFIGMAKE "SHARED")
+    else()
+        SET(OPENCV_LIBTYPE_CONFIGMAKE "STATIC")
+    endif()
+    if(BUILD_ANDROID_CAMERA_WRAPPER)
+        set(CMAKE_CAMERA_LIBS_CONFIGCMAKE "native_camera_r${ANDROID_VERSION}")
+    else()
+        SET(CMAKE_CAMERA_LIBS_CONFIGCMAKE "")
+        file(GLOB CMAKE_CAMERA_LIBS "${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/lib/libnative_camera_r*.so")
+        foreach(cam_lib ${CMAKE_CAMERA_LIBS})
+            get_filename_component(cam_lib "${cam_lib}" NAME)
+            string(REGEX REPLACE "lib(native_camera_r[0-9]+\\.[0-9]+\\.[0-9]+)\\.so" "\\1" cam_lib "${cam_lib}")
+            SET(CMAKE_CAMERA_LIBS_CONFIGCMAKE "${CMAKE_CAMERA_LIBS_CONFIGCMAKE} ${cam_lib}")
+        endforeach()
+    endif()
+endif(ANDROID)
+# -------------------------------------------------------------------------------------------
+#  Part 1/2: ${BIN_DIR}/OpenCV.mk              -> For use *without* "make install"
+# -------------------------------------------------------------------------------------------
+if(ANDROID)
+    set(CMAKE_INCLUDE_DIRS_CONFIGCMAKE "\"\$(RELATIVE_PREFIX)${OPENCV_CONFIG_FILE_INCLUDE_DIR}\" \"\$(RELATIVE_PREFIX)${CMAKE_CURRENT_SOURCE_DIR}/include\" \"\$(RELATIVE_PREFIX)${CMAKE_CURRENT_SOURCE_DIR}/include/opencv\"")
+    set(CMAKE_BASE_INCLUDE_DIRS_CONFIGCMAKE "\"\$(RELATIVE_PREFIX)${CMAKE_CURRENT_SOURCE_DIR}\"")
+    set(CMAKE_LIB_DIRS_CONFIGCMAKE "\$(RELATIVE_PREFIX)${LIBRARY_OUTPUT_PATH}")
+    configure_file("${CMAKE_CURRENT_SOURCE_DIR}/OpenCV.mk.in" "${CMAKE_BINARY_DIR}/OpenCV.mk" IMMEDIATE @ONLY)
+endif(ANDROID)
+
+# -------------------------------------------------------------------------------------------
+#  Part 2/2: ${BIN_DIR}/unix-install/OpenCV.mk -> For use with "make install"
+# -------------------------------------------------------------------------------------------
+if(ANDROID)
+    set(CMAKE_INCLUDE_DIRS_CONFIGCMAKE "\$(OPENCV_THIS_DIR)/../../include/opencv \$(OPENCV_THIS_DIR)/../../include")
+    set(CMAKE_BASE_INCLUDE_DIRS_CONFIGCMAKE "")
+    set(CMAKE_LIB_DIRS_CONFIGCMAKE "\$(OPENCV_THIS_DIR)/../../lib")
+    configure_file("${CMAKE_CURRENT_SOURCE_DIR}/OpenCV.mk.in" "${CMAKE_BINARY_DIR}/unix-install/OpenCV.mk" IMMEDIATE @ONLY)
+    install(FILES ${CMAKE_BINARY_DIR}/unix-install/OpenCV.mk DESTINATION share/opencv/)
+endif(ANDROID)
 
 # --------------------------------------------------------------------------------------------
 #  Part 2/2: ${BIN_DIR}/unix-install/opencv.pc -> For use *with* "make install"

OpenCV.mk.in

@@ -0,0 +1,57 @@
+RELATIVE_PREFIX:=.$(shell echo $(abspath $(LOCAL_PATH))| sed -e "s/\/[^\/]*/\/../g" )
+OPENCV_THIS_DIR:=$(RELATIVE_PREFIX)$(abspath $(dir $(lastword $(MAKEFILE_LIST))))
+OPENCV_LIBS_DIR:=@CMAKE_LIB_DIRS_CONFIGCMAKE@
+OPENCV_BASEDIR:=@CMAKE_BASE_INCLUDE_DIRS_CONFIGCMAKE@
+OPENCV_LOCAL_C_INCLUDES:=@CMAKE_INCLUDE_DIRS_CONFIGCMAKE@
+
+OPENCV_MODULES := contrib calib3d objdetect features2d imgproc video  highgui ml legacy flann core
+
+OPENCV_LIB_TYPE:=@OPENCV_LIBTYPE_CONFIGMAKE@
+ifeq ($(OPENCV_LIB_TYPE),SHARED)
+	OPENCV_LIB_SUFFIX:=so
+	OPENCV_EXTRA_COMPONENTS:=
+else
+	OPENCV_LIB_SUFFIX:=a
+	OPENCV_MODULES+= androidcamera
+	OPENCV_EXTRA_COMPONENTS:=@JPEG_LIBRARIES@ @PNG_LIBRARIES@ @TIFF_LIBRARIES@ @JASPER_LIBRARIES@ zlib
+endif
+
+OPENCV_CAMERA_MODULES := @CMAKE_CAMERA_LIBS_CONFIGCMAKE@
+
+define add_opencv_module
+	include $(CLEAR_VARS)
+	LOCAL_MODULE:=opencv_$1
+	LOCAL_SRC_FILES:=$(OPENCV_LIBS_DIR)/libopencv_$1.$(OPENCV_LIB_SUFFIX)
+	include $(PREBUILT_@OPENCV_LIBTYPE_CONFIGMAKE@_LIBRARY)
+endef
+
+define add_opencv_extra_component
+	include $(CLEAR_VARS)
+	LOCAL_MODULE:=$1
+	LOCAL_SRC_FILES:=$(OPENCV_THIS_DIR)/3rdparty/lib/lib$1.a
+	include $(PREBUILT_STATIC_LIBRARY)
+endef
+
+define add_opencv_camera_module
+	include $(CLEAR_VARS)
+	LOCAL_MODULE:=$1
+	LOCAL_SRC_FILES:=$(OPENCV_LIBS_DIR)/lib$1.so
+	include $(PREBUILT_SHARED_LIBRARY)
+endef
+
+$(foreach module,$(OPENCV_MODULES),$(eval $(call add_opencv_module,$(module))))
+$(foreach module,$(OPENCV_EXTRA_COMPONENTS),$(eval $(call add_opencv_extra_component,$(module))))
+$(foreach module,$(OPENCV_CAMERA_MODULES),$(eval $(call add_opencv_camera_module,$(module))))
+
+ifneq ($(OPENCV_BASEDIR),)
+	OPENCV_LOCAL_C_INCLUDES += $(foreach mod, $(OPENCV_MODULES), $(OPENCV_BASEDIR)/modules/$(mod)/include)
+endif
+
+OPENCV_LOCAL_LIBRARIES += $(foreach mod, $(OPENCV_MODULES), opencv_$(mod))
+OPENCV_LOCAL_LIBRARIES += $(OPENCV_EXTRA_COMPONENTS)
+OPENCV_LOCAL_CFLAGS := -fsigned-char -fPIC -DANDROID
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES         += $(OPENCV_LOCAL_C_INCLUDES)
+LOCAL_STATIC_LIBRARIES   += $(OPENCV_LOCAL_LIBRARIES)
+LOCAL_CFLAGS             += $(OPENCV_LOCAL_CFLAGS)

OpenCVConfig.cmake.in

@@ -59,7 +59,7 @@ else()
     #libraries order is very important because linker from Android NDK is one-pass linker
     set(OPENCV_LIB_COMPONENTS opencv_contrib opencv_calib3d opencv_objdetect opencv_features2d opencv_imgproc opencv_video  opencv_highgui opencv_ml opencv_legacy  opencv_flann opencv_core )
     IF (NOT @BUILD_SHARED_LIBS@)
-        set(OPENCV_LIB_COMPONENTS opencv_androidcamera ${OPENCV_LIB_COMPONENTS})
+        set(OPENCV_LIB_COMPONENTS ${OPENCV_LIB_COMPONENTS} opencv_androidcamera)
     ENDIF()
 endif()
 

android/README.android

@@ -0,0 +1 @@
+See http://opencv.willowgarage.com/wiki/Android

android/README.android.txt

@@ -1 +0,0 @@
-See http://opencv.willowgarage.com/wiki/AndroidTrunk