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RetroArch/qb/config.libs.sh
Nicolas Guillaumin 05df632bd8 WIP: Fixes #2026 Screensaver suspend on Linux via Dbus 
One some systems (tested with Gnome 3 on Arch Linux) the current method
of using `xdg-screensaver` to suspend the screensaver does not work.
Instead, using DBus to issue an `Inhibit` request is recommended.

The request returns a cookie that needs to be re-used to un-inhibit the
screensaver later. Additionally if the DBus connection is closed the
current inhibition is discarded. Thus, the DBus connection needs to stay
connected for the duration of the screenshot inhibition.

The code is heavily inspired from the [SDL 2.x
code](http://hg.libsdl.org/SDL/file/default/src/core/linux/SDL_dbus.c#l172).
I didn't call the SDL 2 code though since this it to fix the issue with
the GL driver, and I assume one would want to have screensaver inhibited
even when SDL 2 is not available (but GL is).

I've set "WIP" because:
* I haven't done C in a long time so my code is probably not great
* There's a dependency on DBus which I don't know is acceptable or
not
* I've put my code where I could to check it works, but `x11_common` may
not be the best place
* The code need and "init" and "deinit" kind of method as it needs to
initialise the DBus connection, and on deinit close it properly. I've
used `x11_connect` and `x11_window_destroy` but they don't sound like
the best choices.
* I'm a bit unclear as to what happens when "suspend screensaver" is
ticked on/off in the menu. This doesn't seem to call
`x11_suspend_screensaver` everytime, so I'm not sure if there's a hook
somewhere (as disabling screensaver suspend in the menu should cause a
DBus unhinibit request to be sent).
* Should I just call the SDL 2.x code (meaning that the GL driver would
depend on SDL 2.x at runtime)?

So, first of all are you ok with the approach, and if yes I'd gladly get
feedback about the code, how to architecture it and the best place to
put it.

Thanks!
2016-09-08 15:23:41 -07:00

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check_switch_c C99 -std=gnu99 "Cannot find C99 compatible compiler."
check_switch_c NOUNUSED -Wno-unused-result
add_define_make NOUNUSED "$HAVE_NOUNUSED"
check_switch_c NOUNUSED_VARIABLE -Wno-unused-variable
add_define_make NOUNUSED_VARIABLE "$HAVE_NOUNUSED_VARIABLE"
# There are still broken 64-bit Linux distros out there. :)
[ -z "$CROSS_COMPILE" ] && [ -d /usr/lib64 ] && add_library_dirs /usr/lib64
[ -z "$CROSS_COMPILE" ] && [ -d /opt/local/lib ] && add_library_dirs /opt/local/lib
DYLIB=-ldl;
CLIB=-lc
PTHREADLIB=-lpthread
SOCKETLIB=-lc
SOCKETHEADER=
if [ "$OS" = 'BSD' ]; then
DYLIB=-lc;
elif [ "$OS" = 'Haiku' ]; then
DYLIB=""
CLIB=-lroot
PTHREADLIB=-lroot
SOCKETLIB=-lnetwork
elif [ "$OS" = 'Win32' ]; then
SOCKETLIB=-lws2_32
SOCKETHEADER="#include <winsock2.h>"
DYLIB=
fi
add_define_make DYLIB_LIB "$DYLIB"
[ "$OS" = 'Darwin' ] && HAVE_X11=no # X11 breaks on recent OSXes even if present.
[ -d /opt/vc/lib ] && add_library_dirs /opt/vc/lib && add_library_dirs /opt/vc/lib/GL
check_lib VIDEOCORE -lbcm_host bcm_host_init "-lvcos -lvchiq_arm"
check_lib SYSTEMD -lsystemd sd_get_machine_names
if [ "$HAVE_VIDEOCORE" = 'yes' ]; then
[ -d /opt/vc/include ] && add_include_dirs /opt/vc/include
[ -d /opt/vc/include/interface/vcos/pthreads ] && add_include_dirs /opt/vc/include/interface/vcos/pthreads
[ -d /opt/vc/include/interface/vmcs_host/linux ] && add_include_dirs /opt/vc/include/interface/vmcs_host/linux
HAVE_GLES='auto'
EXTRA_GL_LIBS="-lEGL -lGLESv2 -lbcm_host -lvcos -lvchiq_arm"
fi
if [ "$HAVE_NEON" = "yes" ]; then
CFLAGS="$CFLAGS -mfpu=neon -marm"
CXXFLAGS="$CXXFLAGS -mfpu=neon -marm"
ASFLAGS="$ASFLAGS -mfpu=neon"
fi
if [ "$HAVE_7ZIP" = "yes" ]; then
add_include_dirs ./decompress/7zip/
fi
if [ "$HAVE_PRESERVE_DYLIB" = "yes" ]; then
echo "Notice: Disabling dlclose() of shared objects for Valgrind support."
add_define_make HAVE_PRESERVE_DYLIB "1"
fi
if [ "$HAVE_FLOATHARD" = "yes" ]; then
CFLAGS="$CFLAGS -mfloat-abi=hard"
CXXFLAGS="$CXXFLAGS -mfloat-abi=hard"
ASFLAGS="$ASFLAGS -mfloat-abi=hard"
fi
if [ "$HAVE_FLOATSOFTFP" = "yes" ]; then
CFLAGS="$CFLAGS -mfloat-abi=softfp"
CXXFLAGS="$CXXFLAGS -mfloat-abi=softfp"
ASFLAGS="$ASFLAGS -mfloat-abi=softfp"
fi
if [ "$HAVE_NEON" = "yes" ]; then
CFLAGS="$CFLAGS -mfpu=neon -marm"
CXXFLAGS="$CXXFLAGS -mfpu=neon -marm"
ASFLAGS="$ASFLAGS -mfpu=neon"
fi
if [ "$HAVE_FLOATHARD" = "yes" ]; then
CFLAGS="$CFLAGS -mfloat-abi=hard"
CXXFLAGS="$CXXFLAGS -mfloat-abi=hard"
ASFLAGS="$ASFLAGS -mfloat-abi=hard"
fi
if [ "$HAVE_FLOATSOFTFP" = "yes" ]; then
CFLAGS="$CFLAGS -mfloat-abi=softfp"
CXXFLAGS="$CXXFLAGS -mfloat-abi=softfp"
ASFLAGS="$ASFLAGS -mfloat-abi=softfp"
fi
if [ "$HAVE_SSE" = "yes" ]; then
CFLAGS="$CFLAGS -msse -msse2"
CXXFLAGS="$CXXFLAGS -msse -msse2"
fi
if [ "$HAVE_EGL" != "no" -a "$OS" != 'Win32' ]; then
check_pkgconf EGL egl
# some systems have EGL libs, but no pkgconfig
if [ "$HAVE_EGL" = "no" ]; then
HAVE_EGL=auto && check_lib EGL "-lEGL $EXTRA_GL_LIBS"
[ "$HAVE_EGL" = "yes" ] && EGL_LIBS=-lEGL
else
EGL_LIBS="$EGL_LIBS $EXTRA_GL_LIBS"
fi
fi
if [ "HAVE_SSA" != "no" ]; then
check_lib SSA -lass ass_library_init
fi
if [ "$HAVE_EXYNOS" != "no" ]; then
check_pkgconf EXYNOS libdrm_exynos
check_pkgconf DRM libdrm
fi
if [ "$HAVE_DISPMANX" != "no" ]; then
PKG_CONF_USED="$PKG_CONF_USED DISPMANX"
fi
if [ "$LIBRETRO" ]; then
echo "Notice: Explicit libretro used, disabling dynamic libretro loading ..."
HAVE_DYNAMIC='no'
else LIBRETRO="-lretro"
fi
[ "$HAVE_DYNAMIC" = 'yes' ] || {
check_lib_cxx RETRO "$LIBRETRO" retro_init "$DYLIB" "Cannot find libretro."
add_define_make libretro "$LIBRETRO"
}
if [ "$ASSETS_DIR" ]; then
add_define_make ASSETS_DIR "$ASSETS_DIR"
else
add_define_make ASSETS_DIR "${PREFIX}/share"
fi
if [ "$BIN_DIR" ]; then
add_define_make BIN_DIR "$BIN_DIR"
else
add_define_make BIN_DIR "${PREFIX}/bin"
fi
if [ "$MAN_DIR" ]; then
add_define_make MAN_DIR "$MAN_DIR"
else
add_define_make MAN_DIR "${PREFIX}/share/man"
fi
if [ "$OS" = 'Win32' ]; then
HAVE_THREADS=yes
HAVE_DYLIB=yes
else
check_lib THREADS "$PTHREADLIB" pthread_create
check_lib DYLIB "$DYLIB" dlopen
fi
check_lib NETWORKING "$SOCKETLIB" socket "" "$SOCKETHEADER"
if [ "$HAVE_NETWORKING" = 'yes' ]; then
HAVE_GETADDRINFO=auto
HAVE_SOCKET_LEGACY=no
# WinXP+ implements getaddrinfo()
if [ "$OS" = 'Win32' ]; then
HAVE_GETADDRINFO=yes
else
check_lib GETADDRINFO "$SOCKETLIB" getaddrinfo
if [ "$HAVE_GETADDRINFO" != 'yes' ]; then
HAVE_SOCKET_LEGACY=yes
echo "Notice: RetroArch will use legacy socket support"
fi
fi
HAVE_NETWORK_CMD=yes
HAVE_NETWORKGAMEPAD=yes
[ "$HAVE_NETPLAY" != 'no' ] && HAVE_NETPLAY='yes'
else
echo "Warning: All networking features have been disabled."
HAVE_NETWORK_CMD='no'
HAVE_NETPLAY='no'
HAVE_NETWORKGAMEPAD='no'
fi
check_lib STDIN_CMD "$CLIB" fcntl
if [ "$HAVE_NETWORK_CMD" = "yes" ] || [ "$HAVE_STDIN_CMD" = "yes" ]; then
HAVE_COMMAND='yes'
else
HAVE_COMMAND='no'
fi
check_lib GETOPT_LONG "$CLIB" getopt_long
if [ "$HAVE_DYLIB" = 'no' ] && [ "$HAVE_DYNAMIC" = 'yes' ]; then
echo "Error: Dynamic loading of libretro is enabled, but your platform does not appear to have dlopen(), use --disable-dynamic or --with-libretro=\"-lretro\"".
exit 1
fi
check_pkgconf ALSA alsa
check_header OSS sys/soundcard.h
check_header OSS_BSD soundcard.h
check_lib OSS_LIB -lossaudio
if [ "$OS" = 'Darwin' ]; then
check_lib AL "-framework OpenAL" alcOpenDevice
HAVE_SDL=no
else
check_lib AL -lopenal alcOpenDevice
fi
check_pkgconf RSOUND rsound 1.1
check_pkgconf ROAR libroar
check_pkgconf JACK jack 0.120.1
check_pkgconf PULSE libpulse
if [ "$OS" = 'Darwin' ]; then
check_lib COREAUDIO "-framework AudioUnit" AudioUnitInitialize
check_lib CORETEXT "-framework CoreText" CTFontCreateWithName
check_lib COCOA "-framework AppKit" NSApplicationMain
check_lib AVFOUNDATION "-framework AVFoundation"
check_lib CORELOCATION "-framework CoreLocation"
check_lib IOHIDMANAGER "-framework IOKit" IOHIDManagerCreate
fi
check_pkgconf SDL sdl 1.2.10
check_pkgconf SDL2 sdl2 2.0.0
if [ "$HAVE_SDL2" = 'yes' ]; then
if [ "$HAVE_SDL2" = 'yes' ] && [ "$HAVE_SDL" = 'yes' ]; then
echo "Notice: SDL drivers will be replaced by SDL2 ones."
HAVE_SDL=no
elif [ "$HAVE_SDL2" = 'no' ]; then
echo "Warning: SDL2 not found, skipping."
HAVE_SDL2=no
fi
fi
check_pkgconf LIBUSB libusb-1.0 1.0.16
if [ "$OS" = 'Win32' ]; then
check_lib DINPUT -ldinput8
check_lib D3D9 -ld3d9
check_lib DSOUND -ldsound
if [ "$HAVE_DINPUT" != 'no' ]; then
HAVE_XINPUT=yes
fi
HAVE_XAUDIO=yes
else
HAVE_D3D9=no
fi
if [ "$HAVE_OPENGL" != 'no' ] && [ "$HAVE_GLES" != 'yes' ]; then
if [ "$OS" = 'Darwin' ]; then
check_header OPENGL "OpenGL/gl.h"
check_lib OPENGL "-framework OpenGL"
elif [ "$OS" = 'Win32' ]; then
check_header OPENGL "GL/gl.h"
check_lib OPENGL -lopengl32
else
check_header OPENGL "GL/gl.h"
check_lib OPENGL -lGL
fi
if [ "$HAVE_OPENGL" = 'yes' ]; then
if [ "$OS" = 'Darwin' ]; then
check_lib CG "-framework Cg" cgCreateContext
[ "$HAVE_CG" = 'yes' ] && CG_LIBS='-framework Cg'
elif [ "$OS" = 'Win32' ]; then
check_lib_cxx CG -lcg cgCreateContext
[ "$HAVE_CG" = 'yes' ] && CG_LIBS='-lcg -lcgGL'
else
# On some distros, -lCg doesn't link against -lstdc++ it seems ...
check_lib_cxx CG -lCg cgCreateContext
[ "$HAVE_CG" = 'yes' ] && CG_LIBS='-lCg -lCgGL'
fi
# fix undefined variables
PKG_CONF_USED="$PKG_CONF_USED CG"
check_pkgconf OSMESA osmesa
else
echo "Notice: Ignoring Cg. Desktop OpenGL is not enabled."
HAVE_CG='no'
fi
fi
if [ "$OS" = 'Darwin' ]; then
check_lib ZLIB "-lz"
else
check_pkgconf ZLIB zlib
fi
if [ "$HAVE_THREADS" != 'no' ]; then
if [ "$HAVE_FFMPEG" != 'no' ]; then
check_pkgconf AVCODEC libavcodec 54
check_pkgconf AVFORMAT libavformat 54
check_pkgconf AVDEVICE libavdevice
check_pkgconf SWRESAMPLE libswresample
check_pkgconf AVRESAMPLE libavresample
check_pkgconf AVUTIL libavutil 51
check_pkgconf SWSCALE libswscale 2.1
check_header AV_CHANNEL_LAYOUT libavutil/channel_layout.h
HAVE_FFMPEG='yes'
if [ "$HAVE_AVCODEC" = 'no' ] || [ "$HAVE_SWRESAMPLE" = 'no' ] || [ "$HAVE_AVFORMAT" = 'no' ] || [ "$HAVE_AVUTIL" = 'no' ] || [ "$HAVE_SWSCALE" = 'no' ]; then
HAVE_FFMPEG='no'
echo "Notice: FFmpeg built-in support disabled due to missing or unsuitable packages."
fi
fi
else
echo "Notice: Not building with threading support. Will skip FFmpeg."
HAVE_FFMPEG='no'
fi
if [ "$OS" != 'Win32' ]; then
check_lib DYNAMIC "$DYLIB" dlopen
fi
if [ "$HAVE_KMS" != "no" ]; then
check_pkgconf GBM gbm 9.0
check_pkgconf DRM libdrm
if [ "$HAVE_GBM" = "yes" ] && [ "$HAVE_DRM" = "yes" ] && [ "$HAVE_EGL" = "yes" ]; then
HAVE_KMS=yes
elif [ "$HAVE_KMS" = "yes" ]; then
echo "Error: Cannot find libgbm, libdrm and EGL libraries required for KMS. Compile without --enable-kms."
exit 1
else
HAVE_KMS=no
fi
fi
check_pkgconf LIBXML2 libxml-2.0
if [ "$HAVE_EGL" = "yes" ]; then
if [ "$HAVE_GLES" != "no" ]; then
if [ "$GLES_LIBS" ] || [ "$GLES_CFLAGS" ]; then
echo "Notice: Using custom OpenGLES CFLAGS ($GLES_CFLAGS) and LDFLAGS ($GLES_LIBS)."
add_define_make GLES_LIBS "$GLES_LIBS"
add_define_make GLES_CFLAGS "$GLES_CFLAGS"
else
HAVE_GLES=auto check_pkgconf GLES glesv2
[ "$HAVE_GLES" = "no" ] && HAVE_GLES=auto check_lib GLES "-lGLESv2 $EXTRA_GL_LIBS" && add_define_make GLES_LIBS "-lGLESv2 $EXTRA_GL_LIBS"
fi
fi
if [ "$HAVE_VG" != "no" ]; then
check_pkgconf VG vg
if [ "$HAVE_VG" = "no" ]; then
HAVE_VG=auto check_lib VG "-lOpenVG $EXTRA_GL_LIBS"
[ "$HAVE_VG" = "yes" ] && VG_LIBS=-lOpenVG
fi
fi
else
HAVE_VG=no
HAVE_GLES=no
fi
check_pkgconf V4L2 libv4l2
if [ "$OS" = 'Darwin' ]; then
check_lib FBO "-framework OpenGL" glFramebufferTexture2D
elif [ "$OS" = 'Win32' ]; then
HAVE_FBO=yes
else
if [ "$HAVE_GLES" = "yes" ]; then
[ $HAVE_FBO != "no" ] && HAVE_FBO=yes
else
check_lib FBO -lGL glFramebufferTexture2D
fi
fi
check_pkgconf FREETYPE freetype2
check_pkgconf X11 x11
check_pkgconf XCB xcb
[ "$HAVE_X11" = "no" ] && HAVE_XEXT=no && HAVE_XF86VM=no && HAVE_XINERAMA=no && HAVE_XSHM=no
check_pkgconf WAYLAND wayland-egl
check_pkgconf XKBCOMMON xkbcommon 0.3.2
check_pkgconf DBUS dbus-1
check_pkgconf XEXT xext
check_pkgconf XF86VM xxf86vm
check_pkgconf XINERAMA xinerama
if [ "$HAVE_X11" = 'yes' ] && [ "$HAVE_XEXT" = 'yes' ] && [ "$HAVE_XF86VM" = 'yes' ]; then
check_pkgconf XVIDEO xv
else
echo "Notice: X11, Xext or xf86vm not present. Skipping X11 code paths."
HAVE_X11='no'
HAVE_XVIDEO='no'
fi
if [ "$HAVE_UDEV" != "no" ]; then
check_pkgconf UDEV libudev
if [ "$HAVE_UDEV" = "no" ]; then
HAVE_UDEV=auto && check_lib UDEV "-ludev"
[ "$HAVE_UDEV" = "yes" ] && UDEV_LIBS=-ludev
fi
fi
check_header XSHM X11/Xlib.h X11/extensions/XShm.h
check_header PARPORT linux/parport.h
check_header PARPORT linux/ppdev.h
if [ "$OS" != 'Win32' ]; then
check_lib STRL "$CLIB" strlcpy
fi
check_lib STRCASESTR "$CLIB" strcasestr
check_lib MMAP "$CLIB" mmap
check_lib VULKAN -lvulkan vkCreateInstance
if [ "$HAVE_VULKAN" != 'no' ] && [ ! -e deps/glslang/glslang/README.md ]; then
echo "Warning: glslang submodule not loaded, can't use Vulkan."
echo "To fix, use: git submodule init && git submodule update"
HAVE_VULKAN=no
fi
if [ "$HAVE_VULKAN" != 'no' ] && [ ! -e deps/SPIRV-Cross/README.md ]; then
echo "Warning: SPIRV-Cross submodule not loaded, can't use Vulkan."
echo "To fix, use: git submodule init && git submodule update"
HAVE_VULKAN=no
fi
check_pkgconf PYTHON python3
if [ "$HAVE_MATERIALUI" != 'no' ] || [ "$HAVE_XMB" != 'no' ] || [ "$HAVE_ZARCH" != 'no' ]; then
if [ "$HAVE_RGUI" = 'no' ]; then
HAVE_MATERIALUI=no
HAVE_XMB=no
HAVE_ZARCH=no
echo "Notice: RGUI not available, MaterialUI, XMB and ZARCH will also be disabled."
elif [ "$HAVE_OPENGL" = 'no' ] && [ "$HAVE_GLES" = 'no' ] && [ "$HAVE_VULKAN" = 'no' ]; then
HAVE_MATERIALUI=no
HAVE_XMB=no
HAVE_ZARCH=no
echo "Notice: Hardware rendering context not available, XMB, MaterialUI and ZARCH will also be disabled."
fi
fi
check_macro NEON __ARM_NEON__
add_define_make OS "$OS"
if [ "$HAVE_ZLIB" = 'no' ] && [ "HAVE_RPNG" != 'no' ]; then
HAVE_RPNG=no
echo "Notice: zlib is not available, RPNG will also be disabled."
fi
if [ "$HAVE_THREADS" = 'no' ] && [ "HAVE_CHEEVOS" != 'no' ]; then
HAVE_CHEEVOS=no
echo "Notice: Threads are not available, Cheevos will also be disabled."
fi
if [ "$HAVE_THREADS" = 'no' ] && [ "HAVE_LIBUSB" != 'no' ]; then
HAVE_LIBUSB=no
echo "Notice: Threads are not available, libusb will also be disabled."
fi
if [ "$HAVE_V4L2" != 'no' ]; then
HAVE_VIDEO_PROCESSOR=yes
fi
# Creates config.mk and config.h.
add_define_make GLOBAL_CONFIG_DIR "$GLOBAL_CONFIG_DIR"
VARS=$(eval set | grep ^HAVE_ | sed s/=.*// | sed s/^HAVE_//)
create_config_make config.mk $VARS
create_config_header config.h $VARS
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