Updated Android cross-compilation on Windows.

android/android-opencv/cmake_android.cmd

+@ECHO OFF
+PUSHD %~dp0
+SET PROJECT_NAME=android-opencv
+CALL ..\scripts\cmake_android.cmd
+POPD
\ No newline at end of file

android/android-opencv/default.properties

@@ -7,7 +7,5 @@
 # "build.properties", and override values to adapt the script to your
 # project structure.
 
-#android.library=true
 # Project target.
 target=android-7
-android.library=true

android/android.toolchain.cmake

@@ -148,20 +148,21 @@ if( EXISTS ${ANDROID_NDK} )
  endif()
 
  set( ANDROID_API_LEVEL $ENV{ANDROID_API_LEVEL} )
- string( REGEX REPLACE "android-([0-9]+)" "\\1" ANDROID_API_LEVEL "${ANDROID_API_LEVEL}" )
+ string( REGEX REPLACE "[\t ]*android-([0-9]+)[\t ]*" "\\1" ANDROID_API_LEVEL "${ANDROID_API_LEVEL}" )
+ string( REGEX REPLACE "[\t ]*([0-9]+)[\t ]*" "\\1" ANDROID_API_LEVEL "${ANDROID_API_LEVEL}" )
 
  set( PossibleAndroidLevels "3;4;5;8;9" )
  set( ANDROID_API_LEVEL ${ANDROID_API_LEVEL} CACHE STRING "android API level" )
  set_property( CACHE ANDROID_API_LEVEL PROPERTY STRINGS ${PossibleAndroidLevels} )
  
  if( NOT ANDROID_API_LEVEL GREATER 2 )
-  set( ANDROID_API_LEVEL 8 )
+  set( ANDROID_API_LEVEL 8)
   message( STATUS "Using default android API level android-${ANDROID_API_LEVEL}" )
   message( STATUS "If you prefer to use a different API level, please define the environment variable: ANDROID_API_LEVEL" )
  endif()
 
  set( ANDROID_NDK_TOOLCHAIN_ROOT "${ANDROID_NDK}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/${NDKSYSTEM}" )
- set( ANDROID_NDK_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_API_LEVEL}/arch-arm/" )
+ set( ANDROID_NDK_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_API_LEVEL}/arch-arm" )
  
  __TOOLCHAIN_DETECT_API_LEVEL( "${ANDROID_NDK_SYSROOT}/usr/include/android/api-level.h" ${ANDROID_API_LEVEL} )
  
@@ -180,6 +181,7 @@ else()
  endif()
 
  set( ANDROID_NDK_TOOLCHAIN_ROOT ${ANDROID_NDK_TOOLCHAIN_ROOT} CACHE PATH "root of the Android NDK standalone toolchain" FORCE )
+ set( ANDROID_NDK_SYSROOT "${ANDROID_NDK_TOOLCHAIN_ROOT}/sysroot" )
 
  if( NOT EXISTS ${ANDROID_NDK_TOOLCHAIN_ROOT} )
   message( FATAL_ERROR "neither ${ANDROID_NDK} nor ${ANDROID_NDK_TOOLCHAIN_ROOT} does not exist!
@@ -192,7 +194,7 @@ else()
       sudo ln -s ~/my-android-toolchain ${ANDROID_NDK_TOOLCHAIN_DEFAULT_SEARCH_PATH}" )
  endif()
  
- __TOOLCHAIN_DETECT_API_LEVEL( "${ANDROID_NDK_TOOLCHAIN_ROOT}/sysroot/usr/include/android/api-level.h" )
+ __TOOLCHAIN_DETECT_API_LEVEL( "${ANDROID_NDK_SYSROOT}/usr/include/android/api-level.h" )
 
  #message( STATUS "Using android NDK standalone toolchain from ${ANDROID_NDK_TOOLCHAIN_ROOT}" )
  set( BUILD_WITH_ANDROID_NDK_TOOLCHAIN True )
@@ -253,15 +255,16 @@ endif()
 SET( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS ON CACHE INTERNAL "" FORCE)
 
 # where is the target environment 
+set( CMAKE_FIND_ROOT_PATH ${ANDROID_NDK_TOOLCHAIN_ROOT}/bin ${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi ${ANDROID_NDK_SYSROOT} ${CMAKE_INSTALL_PREFIX} ${CMAKE_INSTALL_PREFIX}/share )
+
 if( BUILD_WITH_ANDROID_NDK )
- set( STL_LIBRARIES_PATH "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ARMEABI_NDK_NAME}" )
- set( CMAKE_FIND_ROOT_PATH  ${ANDROID_NDK_TOOLCHAIN_ROOT}/bin ${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi ${ANDROID_NDK_SYSROOT} )
- include_directories( ${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/include ${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ARMEABI_NDK_NAME}/include )
+ set( STL_PATH "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++" )
+ set( STL_LIBRARIES_PATH "${STL_PATH}/libs/${ARMEABI_NDK_NAME}" )
+ include_directories( ${STL_PATH}/include ${STL_LIBRARIES_PATH}/include )
 endif()
 
 if( BUILD_WITH_ANDROID_NDK_TOOLCHAIN )
  set( STL_LIBRARIES_PATH "${CMAKE_INSTALL_PREFIX}/lib" )
- set( CMAKE_FIND_ROOT_PATH  ${ANDROID_NDK_TOOLCHAIN_ROOT}/bin ${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi ${ANDROID_NDK_TOOLCHAIN_ROOT}/sysroot ${CMAKE_INSTALL_PREFIX} ${CMAKE_INSTALL_PREFIX}/share )
  #for some reason this is needed? TODO figure out why...
  include_directories( ${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi/include/c++/4.4.3/arm-linux-androideabi )
 endif()
@@ -345,7 +348,7 @@ if( NOT NO_SWIG )
   macro( SET_SWIG_JAVA_PACKAGE package_name )
    string( REGEX REPLACE "[.]" "/" package_name_output ${package_name} )
    set( CMAKE_SWIG_OUTDIR ${SWIG_OUTPUT_ROOT}/${package_name_output} )
-   set( CMAKE_SWIG_FLAGS "-package" "'${package_name}'" )
+   set( CMAKE_SWIG_FLAGS "-package" "\"${package_name}\"" )
   endmacro()
  else()
   message( STATUS "SWIG is not found" )

android/scripts/cmake_android.cmd

-cd %~dp0\..
+@ECHO OFF
 
-::rmdir /S /Q build
-mkdir build 2>nul
+:: don't modify the caller's environment
+SETLOCAL
 
-SET ANDROID_NDK=C:\apps\android-ndk-r5b
-SET CMAKE_EXE=C:\apps\cmake\bin\cmake.exe
-SET MAKE_EXE=C:\apps\gnuport\make.exe
+:: enable command extensions
+VERIFY BADVALUE 2>NUL
+SETLOCAL ENABLEEXTENSIONS
+IF ERRORLEVEL 1 ECHO Unable to enable command extensions.
 
-cd build
-%CMAKE_EXE% -C ../CMakeCache.android.initial.cmake -G"Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=..\android.toolchain.cmake -DCMAKE_MAKE_PROGRAM=%MAKE_EXE% ..\..
+:: load configuration
+PUSHD %~dp0
+IF NOT EXIST .\wincfg.cmd GOTO nocfg
+CALL .\wincfg.cmd
+SET OPENCV_BUILD_DIR="%cd%"\..\%BUILD_DIR%
+POPD
+
+:: path to project root
+SET SOURCE_DIR="%cd%"
+
+:: create build dir
+::rmdir /S /Q %BUILD_DIR% &:: uncomment this line to rebuild instead of build
+MKDIR %BUILD_DIR% 2>NUL
+PUSHD %BUILD_DIR%
+
+:: run cmake
+ECHO.
+ECHO Runnning cmake...
+ECHO ARM_TARGET=%ARM_TARGET%
+ECHO.
+IF NOT EXIST %SOURCE_DIR%\CMakeCache.android.initial.cmake GOTO other-cmake
+:opencv-cmake
+	%CMAKE_EXE% -G"MinGW Makefiles" -DARM_TARGET="%ARM_TARGET%" -C %SOURCE_DIR%\CMakeCache.android.initial.cmake -DCMAKE_TOOLCHAIN_FILE=%SOURCE_DIR%\android.toolchain.cmake -DCMAKE_MAKE_PROGRAM="%MAKE_EXE%" %SOURCE_DIR%\..
+	IF ERRORLEVEL 1 GOTO cmakefails
+	GOTO cmakefin
+:other-cmake
+	%CMAKE_EXE% -G"MinGW Makefiles" -DARM_TARGET="%ARM_TARGET%" -DOpenCV_DIR=%OPENCV_BUILD_DIR%  -DCMAKE_PROGRAM_PATH=%SWIG_DIR% -DCMAKE_TOOLCHAIN_FILE=%OPENCV_BUILD_DIR%\..\android.toolchain.cmake -DCMAKE_MAKE_PROGRAM="%MAKE_EXE%" %SOURCE_DIR%
+	IF ERRORLEVEL 1 GOTO cmakefails
+	GOTO cmakefin
+:cmakefin
+
+:: run make
+ECHO.
+ECHO Building native libs...
+%MAKE_EXE% -j %NUMBER_OF_PROCESSORS% &:: VERBOSE=1
+IF ERRORLEVEL 1 GOTO makefail
+
+IF NOT EXIST ..\jni GOTO fin
+
+:: configure java part
+POPD
+PUSHD .
+ECHO.
+ECHO Updating Android project...
+CALL %ANDROID_SDK%\tools\android update project --name %PROJECT_NAME% --path .
+IF ERRORLEVEL 1 GOTO androidfail
+
+:: compile java part
+ECHO.
+ECHO Compiling Android project...
+CALL %ANT_DIR%\bin\ant compile
+IF ERRORLEVEL 1 GOTO antfail
+
+GOTO fin
+
+:nocfg
+ECHO.
+ECHO Could not find wincfg.cmd file.
+ECHO.
+ECHO   You should create opencv\android\scripts\wincfg.cmd
+ECHO   from template opencv\android\scripts\wincfg.cmd.tmpl
+GOTO fin
+
+:antfail
+ECHO.
+ECHO failed to compile android project
+GOTO fin
+
+:androidfail
+ECHO.
+ECHO failed to update android project
+GOTO fin
+
+:makefail
+ECHO.
+ECHO make failed
+GOTO fin
+
+:cmakefail
+ECHO. 
+ECHO cmake failed
+GOTO fin
+  
+:fin
+POPD
+ENDLOCAL
\ No newline at end of file

android/scripts/cmake_android_armeabi.cmd

-cd %~dp0\..
-
-::rmdir /S /Q build
-mkdir build 2>nul
-
-SET ANDROID_NDK=C:\apps\android-ndk-r5b
-SET CMAKE_EXE=C:\apps\cmake\bin\cmake.exe
-SET MAKE_EXE=C:\apps\gnuport\make.exe
-
-cd build
-%CMAKE_EXE% -C ../CMakeCache.android.initial.cmake -G"Unix Makefiles" -DARM_TARGET=armeabi -DCMAKE_TOOLCHAIN_FILE=..\android.toolchain.cmake -DCMAKE_MAKE_PROGRAM=%MAKE_EXE% ..\..

android/scripts/cmake_android_neon.cmd

-cd %~dp0\..
-
-::rmdir /S /Q build
-mkdir build 2>nul
-
-SET ANDROID_NDK=C:\apps\android-ndk-r5b
-SET CMAKE_EXE=C:\apps\cmake\bin\cmake.exe
-SET MAKE_EXE=C:\apps\gnuport\make.exe
-
-cd build
-%CMAKE_EXE% -C ../CMakeCache.android.initial.cmake -G"Unix Makefiles" -DARM_TARGET="armeabi-v7a with NEON" -DCMAKE_TOOLCHAIN_FILE=..\android.toolchain.cmake -DCMAKE_MAKE_PROGRAM=%MAKE_EXE% ..\..

android/scripts/wincfg.cmd.tmpl

+:: variables required for OpenCV build ::
+SET ANDROID_NDK=C:\full\path\to\your\copy\of\android\NDK\android-ndk-r5b
+SET CMAKE_EXE=C:\full\path\to\cmake\utility\cmake.exe
+SET MAKE_EXE=C:\full\path\to\native\port\of\make\utility\make.exe
+
+:: variables required for android-opencv build ::
+SET SWIG_DIR=C:\full\path\to\SWIG\directory\swigwin-2.0.3
+SET ANDROID_SDK=C:\full\path\to\your\copy\of\android\SDK\android-sdk-windows
+SET ANT_DIR=C:\full\path\to\ant\directory\apache-ant-1.8.2
+SET JAVA_HOME=C:\full\path\to\JDK\jdk1.6.0_25
+
+:: configuration options ::
+:::: general ARM-V7 settings
+SET ARM_TARGET=armeabi-v7a
+SET BUILD_DIR=build
+
+:::: uncomment following lines to compile for emulator or old device
+::SET ARM_TARGET=armeabi
+::SET BUILD_DIR=build_armeabi
+
+:::: uncomment following lines to compile for ARM-V7 with NEON support
+::SET ARM_TARGET="armeabi-v7a with NEON"
+::SET BUILD_DIR=build_neon
+
+:::: other options
+::SET ANDROID_API_LEVEL=8   &:: android-3 is enough for OpenCV but android-8 is recommended
\ No newline at end of file