merged iOS framework from the trunk

2012-06-28 15:13:57 +00:00
parent 59ce0a9f81
commit 150aeee58f
8 changed files with 459 additions and 0 deletions
--- a/ios/build_framework.py
+++ b/ios/build_framework.py
@@ -0,0 +1,126 @@
+#!/usr/bin/env python
+"""
+The script builds OpenCV.framework for iOS.
+The built framework is universal, it can be used to build app and run it on either iOS simulator or real device.
+
+Usage:
+    ./build_framework.py <outputdir>
+    
+By cmake conventions (and especially if you work with OpenCV SVN repository),
+the output dir should not be a subdirectory of OpenCV source tree.
+    
+Script will create <outputdir>, if it's missing, and a few its subdirectories:
+    
+    <outputdir>
+        build/
+            iPhoneOS/
+               [cmake-generated build tree for an iOS device target]
+            iPhoneSimulator/
+               [cmake-generated build tree for iOS simulator]
+        OpenCV.framework/
+            [the framework content]
+
+The script should handle minor OpenCV updates efficiently
+- it does not recompile the library from scratch each time.
+However, OpenCV.framework directory is erased and recreated on each run.
+"""
+
+import glob, re, os, os.path, shutil, string, sys
+
+def build_opencv(srcroot, buildroot, target):
+    "builds OpenCV for device or simulator"
+    
+    builddir = os.path.join(buildroot, target)
+    if not os.path.isdir(builddir):
+        os.makedirs(builddir)
+    currdir = os.getcwd()
+    os.chdir(builddir)
+    # for some reason, if you do not specify CMAKE_BUILD_TYPE, it puts libs to "RELEASE" rather than "Release"
+    cmakeargs = ("-GXcode " +
+                "-DCMAKE_BUILD_TYPE=Release " +
+                "-DCMAKE_TOOLCHAIN_FILE=%s/ios/cmake/Toolchains/Toolchain-%s_Xcode.cmake " +
+                "-DBUILD_opencv_world=ON " +
+                "-DCMAKE_INSTALL_PREFIX=install") % (srcroot, target)
+    # if cmake cache exists, just rerun cmake to update OpenCV.xproj if necessary
+    if os.path.isfile(os.path.join(builddir, "CMakeCache.txt")):
+        os.system("cmake %s ." % (cmakeargs,))
+    else:
+        os.system("cmake %s %s" % (cmakeargs, srcroot))
+    
+    for wlib in [builddir + "/modules/world/UninstalledProducts/libopencv_world.a",
+                 builddir + "/lib/Release/libopencv_world.a"]:
+        if os.path.isfile(wlib):
+            os.remove(wlib)
+    
+    os.system("xcodebuild -parallelizeTargets -jobs 8 -sdk %s -configuration Release -target ALL_BUILD" % target.lower())
+    os.system("xcodebuild -sdk %s -configuration Release -target install install" % target.lower())
+    os.chdir(currdir)
+    
+def put_framework_together(srcroot, dstroot):
+    "constructs the framework directory after all the targets are built"
+    
+    # find the list of targets (basically, ["iPhoneOS", "iPhoneSimulator"])
+    targetlist = glob.glob(os.path.join(dstroot, "build", "*"))
+    targetlist = [os.path.basename(t) for t in targetlist]
+    
+    # set the current dir to the dst root
+    currdir = os.getcwd()
+    framework_dir = dstroot + "/opencv2.framework"
+    if os.path.isdir(framework_dir):
+        shutil.rmtree(framework_dir)
+    os.makedirs(framework_dir)
+    os.chdir(framework_dir)
+    
+    # determine OpenCV version (without subminor part)
+    tdir0 = "../build/" + targetlist[0]
+    cfg = open(tdir0 + "/cvconfig.h", "rt")
+    for l in cfg.readlines():
+        if l.startswith("#define  VERSION"):
+            opencv_version = l[l.find("\"")+1:l.rfind(".")]
+            break
+    cfg.close()
+    
+    # form the directory tree
+    dstdir = "Versions/A"
+    os.makedirs(dstdir + "/Resources")
+
+    # copy headers
+    shutil.copytree(tdir0 + "/install/include/opencv2", dstdir + "/Headers")
+    
+    # make universal static lib
+    wlist = " ".join(["../build/" + t + "/lib/Release/libopencv_world.a" for t in targetlist])
+    os.system("lipo -create " + wlist + " -o " + dstdir + "/opencv2")
+    
+    # form Info.plist
+    srcfile = open(srcroot + "/ios/Info.plist.in", "rt")
+    dstfile = open(dstdir + "/Resources/Info.plist", "wt")
+    for l in srcfile.readlines():
+        dstfile.write(l.replace("${VERSION}", opencv_version))
+    srcfile.close()
+    dstfile.close()
+    
+    # copy cascades
+    # TODO ...
+    
+    # make symbolic links
+    os.symlink(dstdir + "/Headers", "Headers")
+    os.symlink(dstdir + "/Resources", "Resources")
+    os.symlink(dstdir + "/opencv2", "opencv2")
+    os.symlink("A", "Versions/Current")
+        
+        
+def build_framework(srcroot, dstroot):
+    "main function to do all the work"
+    
+    for target in ["iPhoneOS", "iPhoneSimulator"]:
+        build_opencv(srcroot, os.path.join(dstroot, "build"), target)
+    
+    put_framework_together(srcroot, dstroot)
+    
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print "Usage:\n\t./build_framework.py <outputdir>\n\n"
+        sys.exit(0)
+    
+    build_framework(os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "..")), os.path.abspath(sys.argv[1]))