Infrastructure for producing a universal x86-64/i386/ARM version of libjpeg.a and libturbojpeg.a on OS X, so that the same library can be used to build OS X and iOS apps

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@789 632fc199-4ca6-4c93-a231-07263d6284db

BUILDING.txt

@@ -652,6 +652,21 @@ make udmg [BUILDDIR32={32-bit build directory}]
   {source_directory}/osxx86 by default, but you can override this by setting
   the BUILDDIR32 variable on the make command line as shown above.
 
+make iosdmg [BUILDDIR32={32-bit build directory}] \
+  [BUILDDIRARMV6={ARM v6 build directory}] \
+  [BUILDDIRARMV7={ARM v7 build directory}] \
+
+  On 64-bit OS X systems, this creates a version of the Macintosh package and
+  disk image that contains universal i386/x86-64/ARM binaries.  You should
+  first configure 32-bit, ARM v6, and ARM v7 out-of-tree builds of
+  libjpeg-turbo, then configure a 64-bit out-of-tree build, then run
+  'make iosdmg' from the 64-bit build directory.  The build system will look
+  for the 32-bit build under {source_directory}/osxx86 by default, the ARM v6
+  build under {source_directory}/iosarmv6 by default, and the ARM v7 build
+  under {source_directory}/iosarmv7 by default, but you can override this by
+  setting the BUILDDIR32, BUILDDIRARMV6, and/or BUILDDIRARMV7 variables on the
+  make command line as shown above.
+
 make sunpkg
 
   Build a Solaris package.  This requires pkgmk, pkgtrans, and bzip2.

ChangeLog.txt

@@ -9,6 +9,10 @@ will not be SIMD-accelerated when using any of these scaling factors.
 platforms.  This speeds up the decompression of 4:2:2 JPEGs by 20-25% on such
 platforms.
 
+[3] Added ARM v6 and ARM v7 architectures to libjpeg.a and libturbojpeg.a in
+the official OS X distribution package, so that those libraries can be used to
+build both OS X and iOS applications.
+
 
 1.2.0
 =====

Makefile.am

@@ -293,6 +293,9 @@ if X86_64
 udmg: all
 	sh pkgscripts/makemacpkg universal ${BUILDDIR32}
 
+iosdmg: all
+	sh pkgscripts/makemacpkg ios ${BUILDDIR32} ${BUILDDIRARMV6} ${BUILDDIRARMV7}
+
 endif
 
 dmg: all

release/makemacpkg.in

@@ -15,25 +15,29 @@ onexit()
 	fi
 }
 
-usage()
-{
-	echo "$0 [universal [32-bit build dir]]"
-	exit 1
-}
-
 UNIVERSAL=0
+IOS=0
 
 PACKAGE_NAME=@PACKAGE_NAME@
 VERSION=@VERSION@
 BUILD=@BUILD@
 SRCDIR=@abs_top_srcdir@
 BUILDDIR32=@abs_top_srcdir@/osxx86
+BUILDDIRARMV6=@abs_top_srcdir@/iosarmv6
+BUILDDIRARMV7=@abs_top_srcdir@/iosarmv7
 WITH_JAVA=@WITH_JAVA@
 if [ $# -gt 0 ]; then
 	if [ "$1" = "universal" ]; then
 		UNIVERSAL=1
 		if [ $# -gt 1 ]; then BUILDDIR32=$2; fi
 	fi
+	if [ "$1" = "ios" ]; then
+		UNIVERSAL=1
+		IOS=1
+		if [ $# -gt 1 ]; then BUILDDIR32=$2; fi
+		if [ $# -gt 2 ]; then BUILDDIRARMV6=$3; fi
+		if [ $# -gt 3 ]; then BUILDDIRARMV7=$4; fi
+	fi
 fi
 PACKAGEMAKER=/Developer/Applications/Utilities/PackageMaker.app/Contents/MacOS/PackageMaker
 
@@ -79,18 +83,57 @@ if [ $UNIVERSAL = 1 ]; then
 			-arch x86_64 $PKGROOT/opt/$PACKAGE_NAME/lib/libjpeg.@SO_MAJOR_VERSION@.0.@SO_MINOR_VERSION@.dylib \
 			-output $PKGROOT/opt/$PACKAGE_NAME/lib/libjpeg.@SO_MAJOR_VERSION@.0.@SO_MINOR_VERSION@.dylib
 	fi
+	if [ $IOS = 1 ]; then
+		if [ ! -d $BUILDDIRARMV6 ]; then
+			echo ERROR: ARM v6 build directory $BUILDDIRARMV6 does not exist
+			exit 1
+		fi
+		if [ ! -f $BUILDDIRARMV6/Makefile ]; then
+			echo ERROR: ARM v6 build directory $BUILDDIRARMV6 is not configured
+			exit 1
+		fi
+		mkdir -p $TMPDIR/dist.armv6
+		pushd $BUILDDIRARMV6
+		make install DESTDIR=$TMPDIR/dist.armv6
+		popd
+		if [ ! -d $BUILDDIRARMV7 ]; then
+			echo ERROR: ARM v7 build directory $BUILDDIRARMV7 does not exist
+			exit 1
+		fi
+		if [ ! -f $BUILDDIRARMV7/Makefile ]; then
+			echo ERROR: ARM v7 build directory $BUILDDIRARMV7 is not configured
+			exit 1
+		fi
+		mkdir -p $TMPDIR/dist.armv7
+		pushd $BUILDDIRARMV7
+		make install DESTDIR=$TMPDIR/dist.armv7
+		popd
+		lipo -create \
+			-arch arm $TMPDIR/dist.armv6/opt/$PACKAGE_NAME/lib/libjpeg.a \
+			-arch arm $TMPDIR/dist.armv7/opt/$PACKAGE_NAME/lib/libjpeg.a \
+			-arch i386 $TMPDIR/dist.x86/opt/$PACKAGE_NAME/lib/libjpeg.a \
+			-arch x86_64 $PKGROOT/opt/$PACKAGE_NAME/lib/libjpeg.a \
+			-output $PKGROOT/opt/$PACKAGE_NAME/lib/libjpeg.a
+		lipo -create \
+			-arch arm $TMPDIR/dist.armv6/opt/$PACKAGE_NAME/lib/libturbojpeg.a \
+			-arch arm $TMPDIR/dist.armv7/opt/$PACKAGE_NAME/lib/libturbojpeg.a \
+			-arch i386 $TMPDIR/dist.x86/opt/$PACKAGE_NAME/lib/libturbojpeg.a \
+			-arch x86_64 $PKGROOT/usr/lib/libturbojpeg.a \
+			-output $PKGROOT/usr/lib/libturbojpeg.a
+	else
 		lipo -create \
 			-arch i386 $TMPDIR/dist.x86/opt/$PACKAGE_NAME/lib/libjpeg.a \
 			-arch x86_64 $PKGROOT/opt/$PACKAGE_NAME/lib/libjpeg.a \
 			-output $PKGROOT/opt/$PACKAGE_NAME/lib/libjpeg.a
-	lipo -create \
-		-arch i386 $TMPDIR/dist.x86/opt/$PACKAGE_NAME/lib/libturbojpeg.dylib \
-		-arch x86_64 $PKGROOT/usr/lib/libturbojpeg.dylib \
-		-output $PKGROOT/usr/lib/libturbojpeg.dylib
 		lipo -create \
 			-arch i386 $TMPDIR/dist.x86/opt/$PACKAGE_NAME/lib/libturbojpeg.a \
 			-arch x86_64 $PKGROOT/usr/lib/libturbojpeg.a \
 			-output $PKGROOT/usr/lib/libturbojpeg.a
+	fi
+	lipo -create \
+		-arch i386 $TMPDIR/dist.x86/opt/$PACKAGE_NAME/lib/libturbojpeg.dylib \
+		-arch x86_64 $PKGROOT/usr/lib/libturbojpeg.dylib \
+		-output $PKGROOT/usr/lib/libturbojpeg.dylib
 	lipo -create \
 		-arch i386 $TMPDIR/dist.x86/opt/$PACKAGE_NAME/bin/cjpeg \
 		-arch x86_64 $PKGROOT/opt/$PACKAGE_NAME/bin/cjpeg \