Merge pull request #16832 from liqi-c:3.4-tengine-android

* Add android support for tengine

* modify tengine download use commit id

* Del some invalid log in Tengine

* Test. default enable tengine

* ndk version judegment

* Close test . set Tengine default OFF

* Logic problem

* test .Android NDK judgement .

* Cmake error modify.

* cmake: cleanup tengine scripts

* cmake: use tengine target name

* cmake: disable testing of BUILD_ANDROID_PROJECTS=OFF

* Close test .

3rdparty/libtengine/tengine.cmake

@@ -22,69 +22,70 @@
 #         sqfu@openailab.com
 #
 
-SET(TENGINE_VERSION "tengine-opencv")
-SET(OCV_TENGINE_DSTDIRECTORY ${OpenCV_BINARY_DIR}/3rdparty/libtengine)
-SET(DEFAULT_OPENCV_TENGINE_SOURCE_PATH ${OCV_TENGINE_DSTDIRECTORY}/Tengine-${TENGINE_VERSION})
+SET(TENGINE_COMMIT_VERSION "2f3cd86217f3530c8e4a82f3ed5af14c7a4e3943")
+SET(OCV_TENGINE_DIR "${OpenCV_BINARY_DIR}/3rdparty/libtengine")
+SET(OCV_TENGINE_SOURCE_PATH "${OCV_TENGINE_DIR}/Tengine-${TENGINE_COMMIT_VERSION}")
 
-IF(EXISTS ${DEFAULT_OPENCV_TENGINE_SOURCE_PATH})
-	MESSAGE(STATUS "Tengine is exist already  .")
+IF(EXISTS "${OCV_TENGINE_SOURCE_PATH}")
+	MESSAGE(STATUS "Tengine is exist already at: ${OCV_TENGINE_SOURCE_PATH}")
 
 	SET(Tengine_FOUND ON)
-	set(BUILD_TENGINE ON)
+	SET(BUILD_TENGINE ON)
 ELSE()
-	SET(OCV_TENGINE_FILENAME "${TENGINE_VERSION}.zip")#name2
+	SET(OCV_TENGINE_FILENAME "${TENGINE_COMMIT_VERSION}.zip")#name2
 	SET(OCV_TENGINE_URL "https://github.com/OAID/Tengine/archive/") #url2
-	SET(tengine_md5sum 9c80d91dc8413911522ec80cde013ae2) #md5sum2
+	SET(tengine_md5sum 9124324b6e2b350012e46ae1db4bad7d) #md5sum2
 
-	MESSAGE(STATUS "**** TENGINE DOWNLOAD BEGIN ****")
+	#MESSAGE(STATUS "**** TENGINE DOWNLOAD BEGIN ****")
 	ocv_download(FILENAME ${OCV_TENGINE_FILENAME}
 						HASH ${tengine_md5sum}
 						URL
 						"${OPENCV_TENGINE_URL}"
 						"$ENV{OPENCV_TENGINE_URL}"
 						"${OCV_TENGINE_URL}"
-						DESTINATION_DIR ${OCV_TENGINE_DSTDIRECTORY}
+						DESTINATION_DIR "${OCV_TENGINE_DIR}"
 						ID TENGINE
 						STATUS res
 						UNPACK RELATIVE_URL)
 
 	if (NOT res)
-		MESSAGE(STATUS "TENGINE DOWNLOAD FAILED .Turning Tengine_FOUND off.")
+		MESSAGE(STATUS "TENGINE DOWNLOAD FAILED. Turning Tengine_FOUND off.")
 		SET(Tengine_FOUND OFF)
 	else ()
 		MESSAGE(STATUS "TENGINE DOWNLOAD success . ")
 
 		SET(Tengine_FOUND ON)
-		set(BUILD_TENGINE ON)
+		SET(BUILD_TENGINE ON)
 	endif()
 ENDIF()
 
-if (BUILD_TENGINE)
-	set(HAVE_TENGINE 1)
+if(BUILD_TENGINE)
+	SET(HAVE_TENGINE 1)
 
 	# android system
 	if(ANDROID)
 	   if(${ANDROID_ABI} STREQUAL "armeabi-v7a")
-			   set(CONFIG_ARCH_ARM32 ON)
+			   SET(CONFIG_ARCH_ARM32 ON)
 	   elseif(${ANDROID_ABI} STREQUAL "arm64-v8a")
-			   set(CONFIG_ARCH_ARM64 ON)
+			   SET(CONFIG_ARCH_ARM64 ON)
 	   endif()
+	   SET(Tengine_LIB "tengine" CACHE INTERNAL "")
+	else()
+		# linux system
+		if(CMAKE_SYSTEM_PROCESSOR STREQUAL arm)
+			   SET(CONFIG_ARCH_ARM32 ON)
+		elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64) ## AARCH64
+			   SET(CONFIG_ARCH_ARM64 ON)
+		endif()
+		SET(Tengine_LIB "tengine" CACHE INTERNAL "")
 	endif()
 
-	# linux system
-	if(CMAKE_SYSTEM_PROCESSOR STREQUAL arm)
-		   set(CONFIG_ARCH_ARM32 ON)
-	elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL aarch64) ## AARCH64
-		   set(CONFIG_ARCH_ARM64 ON)
-	endif()
-
-	SET(DEFAULT_OPENCV_TENGINE_SOURCE_PATH ${OCV_TENGINE_DSTDIRECTORY}/Tengine-${TENGINE_VERSION})
-	set(BUILT_IN_OPENCV ON) ## set for tengine compile discern .
-	set(Tengine_INCLUDE_DIR  ${DEFAULT_OPENCV_TENGINE_SOURCE_PATH}/core/include)
-	set(Tengine_LIB   ${CMAKE_BINARY_DIR}/lib/${ANDROID_ABI}/libtengine.a)
-	if ( IS_DIRECTORY ${DEFAULT_OPENCV_TENGINE_SOURCE_PATH})
-		add_subdirectory("${DEFAULT_OPENCV_TENGINE_SOURCE_PATH}" ${OCV_TENGINE_DSTDIRECTORY}/build)
+	SET(BUILT_IN_OPENCV ON) ## set for tengine compile discern .
+	SET(Tengine_INCLUDE_DIR  "${OCV_TENGINE_SOURCE_PATH}/core/include" CACHE INTERNAL "")
+	if(EXISTS "${OCV_TENGINE_SOURCE_PATH}/CMakeLists.txt")
+		add_subdirectory("${OCV_TENGINE_SOURCE_PATH}" "${OCV_TENGINE_DIR}/build")
+	else()
+		message(WARNING "TENGINE: Missing 'CMakeLists.txt' in source code package: ${OCV_TENGINE_SOURCE_PATH}")
+		SET(HAVE_TENGINE 1)
 	endif()
 endif()
-
-

CMakeLists.txt

@@ -433,7 +433,7 @@ OCV_OPTION(WITH_QUIRC "Include library QR-code decoding" ON
   VISIBLE_IF TRUE
   VERIFY HAVE_QUIRC)
 OCV_OPTION(WITH_TENGINE "Include Arm Inference Tengine support" OFF
-  VISIBLE_IF (ARM OR AARCH64) AND UNIX AND NOT ANDROID AND NOT IOS
+  VISIBLE_IF (ARM OR AARCH64) AND (UNIX OR ANDROID) AND NOT IOS
   VERIFY HAVE_TENGINE)
 
 # OpenCV build components

cmake/OpenCVFindTengine.cmake

@@ -21,25 +21,42 @@
 #
 
 # ----------------------------------------------------------------------------
-#  Path for Tengine modules
+#  Path for Tengine binaries
 # ----------------------------------------------------------------------------
-set(OPENCV_LIBTENGINE_ROOT_DIR "" CACHE PATH "Where to look for additional OpenCV modules (can be ;-separated list of paths)")
+set(OPENCV_LIBTENGINE_ROOT_DIR "" CACHE PATH "Path to TENGINE binaries installation")
 
-IF(OPENCV_LIBTENGINE_ROOT_DIR)
+IF(OPENCV_LIBTENGINE_ROOT_DIR AND NOT BUILD_TENGINE)
 
-	MESSAGE(STATUS "TENGINE:--  Set tengine lib dir by user ")
+	MESSAGE(STATUS "TENGINE:--  Use binaries at ${OPENCV_LIBTENGINE_ROOT_DIR}")
 
 	SET(Tengine_FOUND ON)
 	set(BUILD_TENGINE OFF)
 
-	SET(Tengine_INCLUDE_DIR   	${OPENCV_LIBTENGINE_ROOT_DIR}/include)
-	SET(Tengine_LIB 	${OPENCV_LIBTENGINE_ROOT_DIR}/lib/libtengine.a)
+	SET(Tengine_INCLUDE_DIR "${OPENCV_LIBTENGINE_ROOT_DIR}/include" CACHE PATH "TENGINE include dir")
+	SET(Tengine_LIB "${OPENCV_LIBTENGINE_ROOT_DIR}/lib/libtengine.a" CACHE PATH "TENGINE library dir")
 
 ELSE()
-
-	MESSAGE(STATUS "TENGINE:--  Auto download Tengine source code. ")
+	IF(ANDROID)
+		IF(OPENCV_TENGINE_FORCE_ANDROID)
+			# nothing, use Android
+		ELSEIF(OPENCV_TENGINE_SKIP_ANDROID)
+			set(Tengine_FOUND OFF)
+			set(HAVE_TENGINE FALSE)
+			return()
+		ELSEIF(NOT DEFINED ANDROID_NDK_REVISION)
+			MESSAGE(STATUS "Android NDK version Tengine not support: ANDROID_NDK_REVISION is not defined")
+			set(Tengine_FOUND OFF)
+			set(HAVE_TENGINE FALSE)
+			return()
+		ELSEIF(ANDROID_NDK_REVISION VERSION_LESS 14)
+			MESSAGE(STATUS "Android NDK version Tengine not support: ANDROID_NDK_REVISION=${ANDROID_NDK_REVISION}")
+			set(Tengine_FOUND OFF)
+			set(HAVE_TENGINE FALSE)
+			return()
+		ENDIF()
+	ENDIF()
+	MESSAGE(STATUS "TENGINE:--  Build Tengine from source code. ")
 	include("${OpenCV_SOURCE_DIR}/3rdparty/libtengine/tengine.cmake")
-
 ENDIF()
 
 IF(NOT Tengine_LIB)
@@ -55,11 +72,7 @@ IF (Tengine_FOUND)
 	set(TENGINE_INCLUDE_DIRS    ${Tengine_INCLUDE_DIR})
 ENDIF (Tengine_FOUND)
 
-MESSAGE(STATUS "Tengine include is:" ${Tengine_INCLUDE_DIR})
-MESSAGE(STATUS "Tengine library is:" ${Tengine_LIB})
-
 MARK_AS_ADVANCED(
 	Tengine_INCLUDE_DIR
 	Tengine_LIB
-	Tengine
 )