Mercurial > sdl-ios-xcode
view build-scripts/fatbuild.sh @ 3880:74e828c64315 SDL-1.2
Fixed bug #292
I might be on crack here.
It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and
right channels of a stereo stream together, and clamps the new mono channel if
it would overflow.
Shouldn't it be dividing by 2 to average the two sample points instead of
clamping? Otherwise the mono sample point's volume doubles in the conversion.
This would also make the conversion faster, as it replaces two branches per
sample frame with a bitwise shift.
--ryan.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 24 Sep 2006 15:45:37 +0000 |
parents | 50e9cca3fe7b |
children | 9b7c0ff4977f 9e454eb693a5 |
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#!/bin/sh # # Build a fat binary on Mac OS X, thanks Ryan! # Number of CPUs (for make -j) NCPU=`sysctl -n hw.ncpu` NJOB=$NCPU #NJOB=`expr $NCPU + 1` # Generic, cross-platform CFLAGS you always want go here. CFLAGS="-O3 -g -pipe" # PowerPC configure flags (10.2 runtime compatibility) # We dynamically load X11, so using the system X11 headers is fine. CONFIG_PPC="--build=`uname -p`-apple-darwin --host=powerpc-apple-darwin \ --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib" # PowerPC compiler flags CC_PPC="gcc-3.3 -arch ppc" CXX_PPC="g++-3.3 -arch ppc" CFLAGS_PPC="" CPPFLAGS_PPC="-DMAC_OS_X_VERSION_MIN_REQUIRED=1020 \ -nostdinc \ -F/Developer/SDKs/MacOSX10.2.8.sdk/System/Library/Frameworks \ -I/Developer/SDKs/MacOSX10.2.8.sdk/usr/include/gcc/darwin/3.3 \ -isystem /Developer/SDKs/MacOSX10.2.8.sdk/usr/include" # PowerPC linker flags LFLAGS_PPC="-arch ppc \ -L/Developer/SDKs/MacOSX10.2.8.sdk/usr/lib/gcc/darwin/3.3 \ -F/Developer/SDKs/MacOSX10.2.8.sdk/System/Library/Frameworks \ -Wl,-syslibroot,/Developer/SDKs/MacOSX10.2.8.sdk" # Intel configure flags (10.4 runtime compatibility) # We dynamically load X11, so using the system X11 headers is fine. CONFIG_X86="--build=`uname -p`-apple-darwin --host=i386-apple-darwin \ --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib" # Intel compiler flags CC_X86="gcc-4.0 -arch i386" CXX_X86="g++-4.0 -arch i386" CFLAGS_X86="-mmacosx-version-min=10.4" CPPFLAGS_X86="-DMAC_OS_X_VERSION_MIN_REQUIRED=1040 \ -nostdinc \ -F/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks \ -I/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/i686-apple-darwin8/4.0.1/include \ -isystem /Developer/SDKs/MacOSX10.4u.sdk/usr/include" # Intel linker flags LFLAGS_X86="-arch i386 -mmacosx-version-min=10.4 \ -L/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/i686-apple-darwin8/4.0.0 \ -Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk" # # Find the configure script # srcdir=`dirname $0`/.. auxdir=$srcdir/build-scripts cd $srcdir # # Figure out which phase to build: # all, # configure, configure-ppc, configure-x86, # make, make-ppc, make-x86, merge # install # clean if test x"$1" = x; then phase=all else phase="$1" fi case $phase in all) configure_ppc="yes" configure_x86="yes" make_ppc="yes" make_x86="yes" merge="yes" ;; configure) configure_ppc="yes" configure_x86="yes" ;; configure-ppc) configure_ppc="yes" ;; configure-x86) configure_x86="yes" ;; make) make_ppc="yes" make_x86="yes" merge="yes" ;; make-ppc) make_ppc="yes" ;; make-x86) make_x86="yes" ;; merge) merge="yes" ;; install) install_bin="yes" install_hdrs="yes" install_lib="yes" install_data="yes" install_man="yes" ;; install-bin) install_bin="yes" ;; install-hdrs) install_hdrs="yes" ;; install-lib) install_lib="yes" ;; install-data) install_data="yes" ;; install-man) install_man="yes" ;; clean) clean_ppc="yes" clean_x86="yes" ;; clean-ppc) clean_ppc="yes" ;; clean-x86) clean_x86="yes" ;; *) echo "Usage: $0 [all|configure[-ppc|-x86]|make[-ppc|-x86]|merge|install|clean]" exit 1 ;; esac case `uname -p` in powerpc) native_path=ppc ;; *86) native_path=x86 ;; *) echo "Couldn't figure out native architecture path" exit 1 ;; esac # # Create the build directories # for dir in build build/ppc build/x86; do if test -d $dir; then : else mkdir $dir || exit 1 fi done # # Build the PowerPC binary # if test x$configure_ppc = xyes; then (cd build/ppc && \ sh ../../configure $CONFIG_PPC CC="$CC_PPC" CXX="$CXX_PPC" CFLAGS="$CFLAGS $CFLAGS_PPC" CPPFLAGS="$CPPFLAGS_PPC" LDFLAGS="$LFLAGS_PPC") || exit 2 fi if test x$make_ppc = xyes; then (cd build/ppc && ls include && make -j$NJOB) || exit 3 fi # # Build the Intel binary # if test x$configure_x86 = xyes; then (cd build/x86 && \ sh ../../configure $CONFIG_X86 CC="$CC_X86" CXX="$CXX_X86" CFLAGS="$CFLAGS $CFLAGS_X86" CPPFLAGS="$CPPFLAGS_X86" LDFLAGS="$LFLAGS_X86") || exit 2 fi if test x$make_x86 = xyes; then (cd build/x86 && make -j$NJOB) || exit 3 fi # # Combine into fat binary # if test x$merge = xyes; then output=.libs sh $auxdir/mkinstalldirs build/$output cd build target=`find . -mindepth 3 -type f -name '*.dylib' | head -1 | sed 's|.*/||'` (lipo -create -o $output/$target `find . -mindepth 3 -type f -name "*.dylib"` && ln -sf $target $output/libSDL-1.2.0.dylib && ln -sf $target $output/libSDL.dylib && lipo -create -o $output/libSDL.a */build/.libs/libSDL.a && cp $native_path/build/.libs/libSDL.la $output && cp $native_path/build/.libs/libSDL.lai $output && cp $native_path/build/libSDL.la . && lipo -create -o libSDLmain.a */build/libSDLmain.a && echo "Build complete!" && echo "Files can be found in the build directory.") || exit 4 cd .. fi # # Install # do_install() { echo $* $* || exit 5 } if test x$prefix = x; then prefix=/usr/local fi if test x$exec_prefix = x; then exec_prefix=$prefix fi if test x$bindir = x; then bindir=$exec_prefix/bin fi if test x$libdir = x; then libdir=$exec_prefix/lib fi if test x$includedir = x; then includedir=$prefix/include fi if test x$datadir = x; then datadir=$prefix/share fi if test x$mandir = x; then mandir=$prefix/man fi if test x$install_bin = xyes; then do_install sh $auxdir/mkinstalldirs $bindir do_install /usr/bin/install -c -m 755 build/$native_path/sdl-config $bindir/sdl-config fi if test x$install_hdrs = xyes; then do_install sh $auxdir/mkinstalldirs $includedir/SDL for src in $srcdir/include/*.h; do \ file=`echo $src | sed -e 's|^.*/||'`; \ do_install /usr/bin/install -c -m 644 $src $includedir/SDL/$file; \ done do_install /usr/bin/install -c -m 644 $srcdir/include/SDL_config_macosx.h $includedir/SDL/SDL_config.h fi if test x$install_lib = xyes; then do_install sh $auxdir/mkinstalldirs $libdir do_install sh build/$native_path/libtool --mode=install /usr/bin/install -c build/libSDL.la $libdir/libSDL.la do_install /usr/bin/install -c -m 644 build/libSDLmain.a $libdir/libSDLmain.a do_install ranlib $libdir/libSDLmain.a fi if test x$install_data = xyes; then do_install sh $auxdir/mkinstalldirs $datadir/aclocal do_install /usr/bin/install -c -m 644 $srcdir/sdl.m4 $datadir/aclocal/sdl.m4 fi if test x$install_man = xyes; then do_install sh $auxdir/mkinstalldirs $mandir/man3 for src in $srcdir/docs/man3/*.3; do \ file=`echo $src | sed -e 's|^.*/||'`; \ do_install /usr/bin/install -c -m 644 $src $mandir/man3/$file; \ done fi # # Clean up # do_clean() { echo $* $* || exit 6 } if test x$clean_x86 = xyes; then do_clean rm -r build/x86 fi if test x$clean_ppc = xyes; then do_clean rm -r build/ppc fi