author Sam Lantinga <>
Sun, 17 Aug 2014 14:57:52 -0700
changeset 9086 c5e33f9a0d03
parent 8722 9203a56e7ffc
child 12391 ca6e41ade79a
permissions -rwxr-xr-x
Fixed bug 2655 - OSX: Window position and global mouse coord spaces are different

Tim McDaniel

On OSX, with revision 8729, the coordinate space for window position and the coordinate space for global mouse position don't match. For a non-fullscreen window, the window position is global relative to the bottom of the menubar. The global mouse position is relative to the top of the screen. This affects Cocoa_WarpMouse and potentially other things as well. Further, the coordinate system for window position is now affected by what screen it is on. For example, if I have two equal size screens oriented side by side such that the tops of the screens are equal in global space, with the menubar on one screen, and a window straddles the two screens, the window's y position makes no sense. The window's y position depends on what screen "most" of the window is on. So if I move the window horizontally just a bit, the y position of my window is now different by the size of the menubar, even though the window was not moved vertically.

I'd like to reiterate that this was a fairly fundamental change (and a breaking change for us). If SDL OSX is to really support multi-display configurations, this is especially problematic.

If the real concern is preventing windows from going under the menubar, then perhaps a solution involving something like overriding [NSWindow constrainFrameRect] would be less problematic than redefining the global window coord space for the main display.
     1 #!/bin/bash
     3 # This is the script uses to cross-compile SDL2 from
     4 #  x86 Linux to Raspberry Pi.
     6 # The final tarball can be unpacked in the root directory of a RPi,
     7 #  so the SDL2 install lands in /usr/local. Run ldconfig, and then
     8 #  you should be able to build and run SDL2-based software on your
     9 #  Pi. Standard configure scripts should be able to find SDL and
    10 #  build against it, and sdl2-config should work correctly on the
    11 #  actual device.
    13 TARBALL="$1"
    14 if [ -z $1 ]; then
    15     TARBALL=sdl-raspberrypi.tar.xz
    16 fi
    18 OSTYPE=`uname -s`
    19 if [ "$OSTYPE" != "Linux" ]; then
    20     # !!! FIXME
    21     echo "This only works on x86 or x64-64 Linux at the moment." 1>&2
    22     exit 1
    23 fi
    25 if [ "x$MAKE" == "x" ]; then
    26     NCPU=`cat /proc/cpuinfo |grep vendor_id |wc -l`
    27     let NCPU=$NCPU+1
    28     MAKE="make -j$NCPU"
    29 fi
    31 BUILDBOTDIR="raspberrypi-buildbot"
    34 set -e
    35 set -x
    36 rm -f $TARBALL
    37 rm -rf $BUILDBOTDIR
    38 mkdir -p $BUILDBOTDIR
    39 pushd $BUILDBOTDIR
    41 SYSROOT="/opt/rpi-sysroot"
    42 export CC="ccache /opt/rpi-tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-gcc --sysroot=$SYSROOT -I$SYSROOT/opt/vc/include -I$SYSROOT/usr/include -I$SYSROOT/opt/vc/include/interface/vcos/pthreads -I$SYSROOT/opt/vc/include/interface/vmcs_host/linux -L$SYSROOT/opt/vc/lib"
    43 # -L$SYSROOT/usr/lib/arm-linux-gnueabihf"
    44 # !!! FIXME: shouldn't have to --disable-* things here.
    45 ../configure --with-sysroot=$SYSROOT --host=arm-raspberry-linux-gnueabihf --prefix=$PWD/rpi-sdl2-installed --disable-pulseaudio --disable-esd --disable-video-mir --disable-video-wayland
    46 $MAKE
    47 $MAKE install
    48 # Fix up a few things to a real install path on a real Raspberry Pi...
    49 perl -w -pi -e "s#$PWD/rpi-sdl2-installed#/usr/local#g;" ./rpi-sdl2-installed/lib/ ./rpi-sdl2-installed/lib/pkgconfig/sdl2.pc ./rpi-sdl2-installed/bin/sdl2-config
    50 mkdir -p ./usr
    51 mv ./rpi-sdl2-installed ./usr/local
    53 popd
    54 tar -cJvvf $TARBALL -C $BUILDBOTDIR usr
    55 rm -rf $BUILDBOTDIR
    57 set +x
    58 echo "All done. Final installable is in $TARBALL ...";