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https://github.com/opencv/opencv.git
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128 lines
4.7 KiB
Python
Executable File
128 lines
4.7 KiB
Python
Executable File
#!/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/ios/cmake/Toolchains/Toolchain-%s_Xcode.cmake " +
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"-DBUILD_opencv_world=ON " +
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"-DCMAKE_INSTALL_PREFIX=install") % (srcroot, target)
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# if cmake cache exists, just rerun cmake to update OpenCV.xproj 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 -parallelizeTargets ARCHS=%s -jobs 8 -sdk %s -configuration Release -target ALL_BUILD" % (arch, target.lower()))
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os.system("xcodebuild 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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# determine OpenCV version (without subminor part)
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tdir0 = "../build/" + targetlist[0]
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cfg = open(tdir0 + "/cvconfig.h", "rt")
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for l in cfg.readlines():
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if l.startswith("#define VERSION"):
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opencv_version = l[l.find("\"")+1:l.rfind(".")]
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break
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cfg.close()
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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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# 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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# form Info.plist
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srcfile = open(srcroot + "/ios/Info.plist.in", "rt")
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dstfile = open(dstdir + "/Resources/Info.plist", "wt")
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for l in srcfile.readlines():
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dstfile.write(l.replace("${VERSION}", opencv_version))
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srcfile.close()
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dstfile.close()
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# copy cascades
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# TODO ...
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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", "iPhoneSimulator"]
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archs = ["armv7", "armv7s", "i386"]
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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])) |