mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
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117 lines
4.5 KiB
117 lines
4.5 KiB
#!/usr/bin/env python |
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""" |
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The script builds OpenCV.framework for iOS. |
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The built framework is universal, it can be used to build app and run it on either iOS simulator or real device. |
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Usage: |
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./build_framework.py <outputdir> |
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By cmake conventions (and especially if you work with OpenCV repository), |
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the output dir should not be a subdirectory of OpenCV source tree. |
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Script will create <outputdir>, if it's missing, and a few its subdirectories: |
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<outputdir> |
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build/ |
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iPhoneOS-*/ |
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[cmake-generated build tree for an iOS device target] |
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iPhoneSimulator-*/ |
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[cmake-generated build tree for iOS simulator] |
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opencv2.framework/ |
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[the framework content] |
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The script should handle minor OpenCV updates efficiently |
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- it does not recompile the library from scratch each time. |
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However, opencv2.framework directory is erased and recreated on each run. |
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""" |
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import glob, re, os, os.path, shutil, string, sys |
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def build_opencv(srcroot, buildroot, target, arch): |
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"builds OpenCV for device or simulator" |
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builddir = os.path.join(buildroot, target + '-' + arch) |
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if not os.path.isdir(builddir): |
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os.makedirs(builddir) |
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currdir = os.getcwd() |
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os.chdir(builddir) |
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# for some reason, if you do not specify CMAKE_BUILD_TYPE, it puts libs to "RELEASE" rather than "Release" |
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cmakeargs = ("-GXcode " + |
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"-DCMAKE_BUILD_TYPE=Release " + |
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"-DCMAKE_TOOLCHAIN_FILE=%s/platforms/ios/cmake/Toolchains/Toolchain-%s_Xcode.cmake " + |
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"-DBUILD_opencv_world=ON " + |
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"-DCMAKE_C_FLAGS=\"-Wno-implicit-function-declaration\" " + |
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"-DCMAKE_INSTALL_PREFIX=install") % (srcroot, target) |
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if arch.startswith("armv"): |
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cmakeargs += " -DENABLE_NEON=ON" |
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# if cmake cache exists, just rerun cmake to update OpenCV.xcodeproj if necessary |
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if os.path.isfile(os.path.join(builddir, "CMakeCache.txt")): |
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os.system("cmake %s ." % (cmakeargs,)) |
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else: |
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os.system("cmake %s %s" % (cmakeargs, srcroot)) |
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for wlib in [builddir + "/modules/world/UninstalledProducts/libopencv_world.a", |
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builddir + "/lib/Release/libopencv_world.a"]: |
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if os.path.isfile(wlib): |
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os.remove(wlib) |
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os.system("xcodebuild IPHONEOS_DEPLOYMENT_TARGET=6.0 -parallelizeTargets ARCHS=%s -jobs 8 -sdk %s -configuration Release -target ALL_BUILD" % (arch, target.lower())) |
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os.system("xcodebuild IPHONEOS_DEPLOYMENT_TARGET=6.0 ARCHS=%s -sdk %s -configuration Release -target install install" % (arch, target.lower())) |
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os.chdir(currdir) |
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def put_framework_together(srcroot, dstroot): |
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"constructs the framework directory after all the targets are built" |
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# find the list of targets (basically, ["iPhoneOS", "iPhoneSimulator"]) |
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targetlist = glob.glob(os.path.join(dstroot, "build", "*")) |
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targetlist = [os.path.basename(t) for t in targetlist] |
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# set the current dir to the dst root |
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currdir = os.getcwd() |
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framework_dir = dstroot + "/opencv2.framework" |
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if os.path.isdir(framework_dir): |
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shutil.rmtree(framework_dir) |
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os.makedirs(framework_dir) |
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os.chdir(framework_dir) |
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# form the directory tree |
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dstdir = "Versions/A" |
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os.makedirs(dstdir + "/Resources") |
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tdir0 = "../build/" + targetlist[0] |
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# copy headers |
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shutil.copytree(tdir0 + "/install/include/opencv2", dstdir + "/Headers") |
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# make universal static lib |
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wlist = " ".join(["../build/" + t + "/lib/Release/libopencv_world.a" for t in targetlist]) |
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os.system("lipo -create " + wlist + " -o " + dstdir + "/opencv2") |
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# copy Info.plist |
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shutil.copyfile(tdir0 + "/ios/Info.plist", dstdir + "/Resources/Info.plist") |
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# make symbolic links |
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os.symlink("A", "Versions/Current") |
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os.symlink("Versions/Current/Headers", "Headers") |
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os.symlink("Versions/Current/Resources", "Resources") |
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os.symlink("Versions/Current/opencv2", "opencv2") |
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def build_framework(srcroot, dstroot): |
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"main function to do all the work" |
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targets = ["iPhoneOS", "iPhoneOS", "iPhoneOS", "iPhoneSimulator", "iPhoneSimulator"] |
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archs = ["armv7", "armv7s", "arm64", "i386", "x86_64"] |
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for i in range(len(targets)): |
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build_opencv(srcroot, os.path.join(dstroot, "build"), targets[i], archs[i]) |
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put_framework_together(srcroot, dstroot) |
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if __name__ == "__main__": |
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if len(sys.argv) != 2: |
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print "Usage:\n\t./build_framework.py <outputdir>\n\n" |
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sys.exit(0) |
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build_framework(os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "../..")), os.path.abspath(sys.argv[1]))
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