cmake/sdlchecks.cmake
changeset 6674 45a21e50ba5e
child 7078 a2bddc1fb02f
equal deleted inserted replaced
6673:78f18a929123 6674:45a21e50ba5e
       
     1 macro(CheckDLOPEN)
       
     2   check_function_exists(dlopen HAVE_DLOPEN)
       
     3   if(NOT HAVE_DLOPEN)
       
     4     foreach(_LIBNAME dl tdl)
       
     5       check_library_exists("${_LIBNAME}" "dlopen" "" DLOPEN_LIB)
       
     6       if(DLOPEN_LIB)
       
     7         list(APPEND EXTRA_LIBS ${_LIBNAME})
       
     8         set(_DLLIB ${_LIBNAME})
       
     9         set(HAVE_DLOPEN TRUE)
       
    10         break()
       
    11       endif(DLOPEN_LIB)
       
    12     endforeach()
       
    13   endif()
       
    14 
       
    15   if(HAVE_DLOPEN)
       
    16     if(_DLLIB)
       
    17       set(CMAKE_REQUIRED_LIBRARIES ${_DLLIB})
       
    18     endif()
       
    19     check_c_source_compiles("
       
    20        #include <dlfcn.h>
       
    21        #if defined(MAC_OS_X_VERSION_MIN_REQUIRED) && MAC_OS_X_VERSION_MIN_REQUIRED <= 1020
       
    22        #error Use dlcompat for Mac OS X 10.2 compatibility
       
    23        #endif
       
    24        int main(int argc, char **argv) {}" HAVE_DLOPEN)
       
    25     set(CMAKE_REQUIRED_LIBRARIES)
       
    26   endif()
       
    27 
       
    28   if (HAVE_DLOPEN)
       
    29     set(SDL_LOADSO_DLOPEN 1)
       
    30     set(HAVE_SDL_DLOPEN TRUE)
       
    31     file(GLOB DLOPEN_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/dlopen/*.c)
       
    32     set(SOURCE_FILES ${SOURCE_FILES} ${DLOPEN_SOURCES})
       
    33     set(HAVE_SDL_LOADSO TRUE)
       
    34   endif()
       
    35 endmacro(CheckDLOPEN)
       
    36 
       
    37 # Requires:
       
    38 # - n/a
       
    39 macro(CheckOSS)
       
    40   if(OSS)
       
    41     set(OSS_HEADER_FILE "sys/soundcard.h")
       
    42     check_c_source_compiles("
       
    43         #include <sys/soundcard.h>
       
    44         int main() { int arg = SNDCTL_DSP_SETFRAGMENT; }" OSS_FOUND)
       
    45     if(NOT OSS_FOUND)
       
    46       set(OSS_HEADER_FILE "soundcard.h")
       
    47       check_c_source_compiles("
       
    48           #include <soundcard.h>
       
    49           int main() { int arg = SNDCTL_DSP_SETFRAGMENT; }" OSS_FOUND)
       
    50     endif(NOT OSS_FOUND)
       
    51 
       
    52     if(OSS_FOUND)
       
    53       set(HAVE_OSS TRUE)
       
    54       file(GLOB OSS_SOURCES ${SDL2_SOURCE_DIR}/src/audio/dsp/*.c)
       
    55       if(OSS_HEADER_FILE STREQUAL "soundcard.h")
       
    56         set(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H 1)
       
    57       endif(OSS_HEADER_FILE STREQUAL "soundcard.h")
       
    58       set(SDL_AUDIO_DRIVER_OSS 1)
       
    59       set(SOURCE_FILES ${SOURCE_FILES} ${OSS_SOURCES})
       
    60       if(NETBSD OR OPENBSD)
       
    61         list(APPEND EXTRA_LIBS ossaudio)
       
    62       endif(NETBSD OR OPENBSD)
       
    63       set(HAVE_SDL_AUDIO TRUE)
       
    64     endif(OSS_FOUND)
       
    65   endif(OSS)
       
    66 endmacro(CheckOSS)
       
    67 
       
    68 # Requires:
       
    69 # - n/a
       
    70 # Optional:
       
    71 # - ALSA_SHARED opt
       
    72 # - HAVE_DLOPEN opt
       
    73 macro(CheckALSA)
       
    74   if(ALSA)
       
    75     CHECK_INCLUDE_FILE(alsa/asoundlib.h HAVE_ASOUNDLIB_H)
       
    76     if(HAVE_ASOUNDLIB_H)
       
    77       CHECK_LIBRARY_EXISTS(asound snd_pcm_open "" HAVE_LIBASOUND)
       
    78       set(HAVE_ALSA TRUE)
       
    79       file(GLOB ALSA_SOURCES ${SDL2_SOURCE_DIR}/src/audio/alsa/*.c)
       
    80       set(SOURCE_FILES ${SOURCE_FILES} ${ALSA_SOURCES})
       
    81       set(SDL_AUDIO_DRIVER_ALSA 1)
       
    82       if(ALSA_SHARED)
       
    83         if(NOT HAVE_DLOPEN)
       
    84           message_warn("You must have SDL_LoadObject() support for dynamic ALSA loading")
       
    85         else()
       
    86           find_library(_ALSA_LIB asound)
       
    87           get_filename_component(F_ALSA_LIB ${_ALSA_LIB} NAME)
       
    88           set(SDL_AUDIO_DRIVER_ALSA_DYNAMIC "\"${F_ALSA_LIB}\"")
       
    89           set(HAVE_ALSA_SHARED TRUE)
       
    90         endif(NOT HAVE_DLOPEN)
       
    91       else(ALSA_SHARED)
       
    92         list(APPEND EXTRA_LIBS asound)
       
    93       endif(ALSA_SHARED)
       
    94       set(HAVE_SDL_AUDIO TRUE)
       
    95     endif(HAVE_ASOUNDLIB_H)
       
    96   endif(ALSA)
       
    97 endmacro(CheckALSA)
       
    98 
       
    99 # Requires:
       
   100 # - PkgCheckModules
       
   101 # Optional:
       
   102 # - PULSEAUDIO_SHARED opt
       
   103 # - HAVE_DLOPEN opt
       
   104 macro(CheckPulseAudio)
       
   105   if(PULSEAUDIO)
       
   106     pkg_check_modules(PKG_PULSEAUDIO libpulse-simple)
       
   107     if(PKG_PULSEAUDIO_FOUND)
       
   108       set(HAVE_PULSEAUDIO TRUE)
       
   109       file(GLOB PULSEAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/pulseaudio/*.c)
       
   110       set(SOURCE_FILES ${SOURCE_FILES} ${PULSEAUDIO_SOURCES})
       
   111       set(SDL_AUDIO_DRIVER_PULSEAUDIO 1)
       
   112       list(APPEND EXTRA_CFLAGS ${PKG_PULSEAUDIO_CFLAGS})
       
   113       if(PULSEAUDIO_SHARED)
       
   114         if(NOT HAVE_DLOPEN)
       
   115           message_warn("You must have SDL_LoadObject() support for dynamic PulseAudio loading")
       
   116         else()
       
   117           find_library(D_PULSE_LIB pulse-simple)
       
   118           get_filename_component(F_PULSE_LIB ${D_PULSE_LIB} NAME)
       
   119           set(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC "\"${F_PULSE_LIB}\"")
       
   120           set(HAVE_PULSEAUDIO_SHARED TRUE)
       
   121         endif(NOT HAVE_DLOPEN)
       
   122       else(PULSEAUDIO_SHARED)
       
   123         list(APPEND EXTRA_LDFLAGS ${PKG_PULSEAUDIO_LDFLAGS})
       
   124       endif(PULSEAUDIO_SHARED)
       
   125       set(HAVE_SDL_AUDIO TRUE)
       
   126     endif(PKG_PULSEAUDIO_FOUND)
       
   127   endif(PULSEAUDIO)
       
   128 endmacro(CheckPulseAudio)
       
   129 
       
   130 # Requires:
       
   131 # - PkgCheckModules
       
   132 # Optional:
       
   133 # - ESD_SHARED opt
       
   134 # - HAVE_DLOPEN opt
       
   135 macro(CheckESD)
       
   136   if(ESD)
       
   137     pkg_check_modules(PKG_ESD esound)
       
   138     if(PKG_ESD_FOUND)
       
   139       set(HAVE_ESD TRUE)
       
   140       file(GLOB ESD_SOURCES ${SDL2_SOURCE_DIR}/src/audio/esd/*.c)
       
   141       set(SOURCE_FILES ${SOURCE_FILES} ${ESD_SOURCES})
       
   142       set(SDL_AUDIO_DRIVER_ESD 1)
       
   143       list(APPEND EXTRA_CFLAGS ${PKG_ESD_CFLAGS})
       
   144       if(ESD_SHARED)
       
   145         if(NOT HAVE_DLOPEN)
       
   146           message_warn("You must have SDL_LoadObject() support for dynamic ESD loading")
       
   147         else()
       
   148           find_library(D_ESD_LIB esd)
       
   149           get_filename_component(F_ESD_LIB ${D_ESD_LIB} NAME)
       
   150           set(SDL_AUDIO_DRIVER_ESD_DYNAMIC "\"${F_ESD_LIB}\"")
       
   151           set(HAVE_ESD_SHARED TRUE)
       
   152         endif(NOT HAVE_DLOPEN)
       
   153       else(ESD_SHARED)
       
   154         list(APPEND EXTRA_LDFLAGS ${PKG_ESD_LDFLAGS})
       
   155       endif(ESD_SHARED)
       
   156       set(HAVE_SDL_AUDIO TRUE)
       
   157     endif(PKG_ESD_FOUND)
       
   158   endif(ESD)
       
   159 endmacro(CheckESD)
       
   160 
       
   161 # Requires:
       
   162 # - n/a
       
   163 # Optional:
       
   164 # - ARTS_SHARED opt
       
   165 # - HAVE_DLOPEN opt
       
   166 macro(CheckARTS)
       
   167   if(ARTS)
       
   168     find_program(ARTS_CONFIG arts-config)
       
   169     if(ARTS_CONFIG)
       
   170       execute_process(CMD_ARTSCFLAGS ${ARTS_CONFIG} --cflags
       
   171         OUTPUT_VARIABLE ARTS_CFLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
       
   172       list(APPEND EXTRA_CFLAGS ${ARTS_CFLAGS})
       
   173       execute_process(CMD_ARTSLIBS ${ARTS_CONFIG} --libs
       
   174         OUTPUT_VARIABLE ARTS_LIBS OUTPUT_STRIP_TRAILING_WHITESPACE)
       
   175       file(GLOB ARTS_SOURCES ${SDL2_SOURCE_DIR}/src/audio/arts/*.c)
       
   176       set(SOURCE_FILES ${SOURCE_FILES} ${ARTS_SOURCES})
       
   177       set(SDL_AUDIO_DRIVER_ARTS 1)
       
   178       set(HAVE_ARTS TRUE)
       
   179       if(ARTS_SHARED)
       
   180         if(NOT HAVE_DLOPEN)
       
   181           message_warn("You must have SDL_LoadObject() support for dynamic ARTS loading")
       
   182         else()
       
   183           # TODO
       
   184           find_library(D_ARTS_LIB artsc)
       
   185           get_filename_component(F_ARTS_LIB ${D_ARTS_LIB} NAME)
       
   186           set(SDL_AUDIO_DRIVER_ARTS_DYNAMIC "\"${F_ARTS_LIB}\"")
       
   187           set(HAVE_ARTS_SHARED TRUE)
       
   188         endif(NOT HAVE_DLOPEN)
       
   189       else(ARTS_SHARED)
       
   190         list(APPEND EXTRA_LDFLAGS ${ARTS_LIBS})
       
   191       endif(ARTS_SHARED)
       
   192       set(HAVE_SDL_AUDIO TRUE)
       
   193     endif(ARTS_CONFIG)
       
   194   endif(ARTS)
       
   195 endmacro(CheckARTS)
       
   196 
       
   197 # Requires:
       
   198 # - n/a
       
   199 # Optional:
       
   200 # - NAS_SHARED opt
       
   201 # - HAVE_DLOPEN opt
       
   202 macro(CheckNAS)
       
   203   if(NAS)
       
   204     # TODO: set include paths properly, so the NAS headers are found
       
   205     check_include_file(audio/audiolib.h HAVE_NAS_H)
       
   206     find_library(D_NAS_LIB audio)
       
   207     if(HAVE_NAS_H AND D_NAS_LIB)
       
   208       set(HAVE_NAS TRUE)
       
   209       file(GLOB NAS_SOURCES ${SDL2_SOURCE_DIR}/src/audio/nas/*.c)
       
   210       set(SOURCE_FILES ${SOURCE_FILES} ${NAS_SOURCES})
       
   211       set(SDL_AUDIO_DRIVER_NAS 1)
       
   212       if(NAS_SHARED)
       
   213         if(NOT HAVE_DLOPEN)
       
   214           message_warn("You must have SDL_LoadObject() support for dynamic NAS loading")
       
   215         else()
       
   216           get_filename_component(F_NAS_LIB ${D_NAS_LIB} NAME)
       
   217           set(SDL_AUDIO_DRIVER_NAS_DYNAMIC "\"${F_NAS_LIB}\"")
       
   218           set(HAVE_NAS_SHARED TRUE)
       
   219         endif(NOT HAVE_DLOPEN)
       
   220       else(NAS_SHARED)
       
   221         list(APPEND EXTRA_LIBS ${D_NAS_LIB})
       
   222       endif(NAS_SHARED)
       
   223       set(HAVE_SDL_AUDIO TRUE)
       
   224     endif(HAVE_NAS_H AND D_NAS_LIB)
       
   225   endif(NAS)
       
   226 endmacro(CheckNAS)
       
   227 
       
   228 # Requires:
       
   229 # - PkgCheckModules
       
   230 # Optional:
       
   231 # - FUSIONSOUND_SHARED opt
       
   232 # - HAVE_DLOPEN opt
       
   233 macro(CheckFusionSound)
       
   234   if(FUSIONSOUND)
       
   235     pkg_check_modules(PKG_FUSIONSOUND fusionsound>=1.0.0)
       
   236     if(PKG_FUSIONSOUND_FOUND)
       
   237       set(HAVE_FUSIONSOUND TRUE)
       
   238       file(GLOB FUSIONSOUND_SOURCES ${SDL2_SOURCE_DIR}/src/audio/fusionsound/*.c)
       
   239       set(SOURCE_FILES ${SOURCE_FILES} ${FUSIONSOUND_SOURCES})
       
   240       set(SDL_AUDIO_DRIVER_FUSIONSOUND 1)
       
   241       list(APPEND EXTRA_CFLAGS ${PKG_FUSIONSOUND_CFLAGS})
       
   242       if(FUSIONSOUND_SHARED)
       
   243         if(NOT HAVE_DLOPEN)
       
   244           message_warn("You must have SDL_LoadObject() support for dynamic FusionSound loading")
       
   245         else()
       
   246           find_library(D_FUSIONSOUND_LIB fusionsound)
       
   247           get_filename_component(F_FUSIONSOUND_LIB ${D_FUSIONSOUND_LIB} NAME)
       
   248           set(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC "\"${F_FUSIONSOUND_LIB}\"")
       
   249           set(HAVE_FUSIONSOUND_SHARED TRUE)
       
   250         endif(NOT HAVE_DLOPEN)
       
   251       else(FUSIONSOUND_SHARED)
       
   252         list(APPEND EXTRA_LDFLAGS ${PKG_FUSIONSOUND_LDFLAGS})
       
   253       endif(FUSIONSOUND_SHARED)
       
   254       set(HAVE_SDL_AUDIO TRUE)
       
   255     endif(PKG_FUSIONSOUND_FOUND)
       
   256   endif(FUSIONSOUND)
       
   257 endmacro(CheckFusionSound)
       
   258 
       
   259 # Requires:
       
   260 # - n/a
       
   261 # Optional:
       
   262 # - X11_SHARED opt
       
   263 # - HAVE_DLOPEN opt
       
   264 macro(CheckX11)
       
   265   if(VIDEO_X11)
       
   266     foreach(_LIB X11 Xext Xcursor Xinerama Xi Xrandr Xrender Xss Xxf86vm)
       
   267       string(TOUPPER ${_LIB} _LNAME)
       
   268       find_library(${_LNAME}_LIB ${_LIB})
       
   269       if(${_LNAME}_LIB)
       
   270         # reduce the library name for shared linking
       
   271         get_filename_component(_TMP ${${_LNAME}_LIB} NAME)
       
   272         set(${_LNAME}_LIB ${_TMP})
       
   273       endif()
       
   274     endforeach()
       
   275 
       
   276     check_include_file(X11/Xcursor/Xcursor.h HAVE_XCURSOR_H)
       
   277     check_include_file(X11/extensions/Xinerama.h HAVE_XINERAMA_H)
       
   278     check_include_file(X11/extensions/XInput2.h HAVE_XINPUT_H)
       
   279     check_include_file(X11/extensions/Xrandr.h HAVE_XRANDR_H)
       
   280     check_include_file(X11/extensions/Xrender.h HAVE_XRENDER_H)
       
   281     check_include_file(X11/extensions/scrnsaver.h HAVE_XSS_H)
       
   282     check_include_file(X11/extensions/shape.h HAVE_XSHAPE_H)
       
   283     check_include_files("X11/Xlib.h;X11/extensions/xf86vmode.h" HAVE_XF86VM_H)
       
   284 
       
   285     if(X11_LIB)
       
   286       set(HAVE_VIDEO_X11 TRUE)
       
   287       set(HAVE_SDL_VIDEO TRUE)
       
   288 
       
   289       file(GLOB X11_SOURCES ${SDL2_SOURCE_DIR}/src/video/x11/*.c)
       
   290       set(SOURCE_FILES ${SOURCE_FILES} ${X11_SOURCES})
       
   291       set(SDL_VIDEO_DRIVER_X11 1)
       
   292 
       
   293       if(HAVE_GCC_FVISIBILITY)
       
   294         set(X11_SYMBOLS_PRIVATE TRUE)
       
   295       else()
       
   296         set(X11_SYMBOLS_PRIVATE FALSE)
       
   297       endif(HAVE_GCC_FVISIBILITY)
       
   298 
       
   299       if(APPLE)
       
   300         set(X11_SHARED OFF)
       
   301         set(X11_SYMBOLS_PRIVATE TRUE)
       
   302       endif(APPLE)
       
   303 
       
   304       check_function_exists("shmat" HAVE_SHMAT)
       
   305       if(NOT HAVE_SHMAT)
       
   306         check_library_exists(ipc shmat "" HAVE_SHMAT)
       
   307         if(HAVE_SHMAT)
       
   308           list(APPEND EXTRA_LIBS ipc)
       
   309         endif(HAVE_SHMAT)
       
   310         if(NOT HAVE_SHMAT)
       
   311           add_definitions(-DNO_SHARED_MEMORY)
       
   312         endif(NOT HAVE_SHMAT)
       
   313       endif(NOT HAVE_SHMAT)
       
   314 
       
   315       if(X11_SHARED)
       
   316         if(NOT HAVE_DLOPEN)
       
   317           message_warn("You must have SDL_LoadObject() support for dynamic X11 loading")
       
   318           set(HAVE_X11_SHARED FALSE)
       
   319           if(X11_SYMBOLS_PRIVATE)
       
   320             message_warn("You must have gcc4 (-fvisibility=hidden) for dynamic X11 loading")
       
   321             set(HAVE_X11_SHARED TRUE)
       
   322           endif(X11_SYMBOLS_PRIVATE)
       
   323         else(NOT HAVE_DLOPEN)
       
   324           set(HAVE_X11_SHARED TRUE)
       
   325         endif()
       
   326         if(HAVE_X11_SHARED)
       
   327           set(SDL_VIDEO_DRIVER_X11_DYNAMIC "\"${X11_LIB}\"")
       
   328           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT "\"${XEXT_LIB}\"")
       
   329         else(HAVE_X11_SHARED)
       
   330           list(APPEND EXTRA_LIBS ${X11_LIB} ${XEXT_LIB})
       
   331         endif(HAVE_X11_SHARED)
       
   332       endif(X11_SHARED)
       
   333 
       
   334       set(CMAKE_REQUIRED_LIBRARIES ${X11_LIB} ${X11_LIB})
       
   335       check_c_source_compiles("
       
   336           #include <X11/Xlib.h>
       
   337           #include <X11/Xproto.h>
       
   338           #include <X11/extensions/Xext.h>
       
   339           #include <X11/extensions/extutil.h>
       
   340           extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
       
   341           int main(int argc, char **argv) {}" HAVE_CONST_XEXT_ADDDISPLAY)
       
   342       if(HAVE_CONST_XEXT_ADDDISPLAY)
       
   343         set(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY 1)
       
   344       endif(HAVE_CONST_XEXT_ADDDISPLAY)
       
   345 
       
   346       check_c_source_compiles("
       
   347           #include <X11/Xlib.h>
       
   348           int main(int argc, char **argv) {
       
   349             Display *display;
       
   350             XEvent event;
       
   351             XGenericEventCookie *cookie = &event.xcookie;
       
   352             XNextEvent(display, &event);
       
   353             XGetEventData(display, cookie);
       
   354             XFreeEventData(display, cookie); }" HAVE_XGENERICEVENT)
       
   355       if(HAVE_XGENERICEVENT)
       
   356         set(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS 1)
       
   357       endif(HAVE_XGENERICEVENT)
       
   358 
       
   359       check_function_exists(XkbKeycodeToKeysym SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM)
       
   360 
       
   361       if(VIDEO_X11_XCURSOR AND HAVE_XCURSOR_H)
       
   362         set(HAVE_VIDEO_X11_XCURSOR TRUE)
       
   363         if(HAVE_X11_SHARED AND XCURSOR_LIB)
       
   364           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR "\"${XCURSOR_LIB}\"")
       
   365         else(HAVE_X11_SHARED AND XCURSOR_LIB)
       
   366           list(APPEND EXTRA_LIBS ${XCURSOR_LIB})
       
   367         endif(HAVE_X11_SHARED AND XCURSOR_LIB)
       
   368         set(SDL_VIDEO_DRIVER_X11_XCURSOR 1)
       
   369       endif(VIDEO_X11_XCURSOR AND HAVE_XCURSOR_H)
       
   370 
       
   371       if(VIDEO_X11_XINERAMA AND HAVE_XINERAMA_H)
       
   372         set(HAVE_VIDEO_X11_XINERAMA TRUE)
       
   373         if(HAVE_X11_SHARED AND XINERAMA_LIB)
       
   374           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA "\"${XINERAMA_LIB}\"")
       
   375         else(HAVE_X11_SHARED AND XINERAMA_LIB)
       
   376           list(APPEND EXTRA_LIBS ${XINERAMA_LIB})
       
   377         endif(HAVE_X11_SHARED AND XINERAMA_LIB)
       
   378         set(SDL_VIDEO_DRIVER_X11_XINERAMA 1)
       
   379       endif(VIDEO_X11_XINERAMA AND HAVE_XINERAMA_H)
       
   380 
       
   381       if(VIDEO_X11_XINPUT AND HAVE_XINPUT_H)
       
   382         set(HAVE_VIDEO_X11_XINPUT TRUE)
       
   383         if(HAVE_X11_SHARED AND XI_LIB)
       
   384           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2 "\"${XI_LIB}\"")
       
   385         else(HAVE_X11_SHARED AND XI_LIB)
       
   386           list(APPEND EXTRA_LIBS ${XI_LIB})
       
   387         endif(HAVE_X11_SHARED AND XI_LIB)
       
   388         set(SDL_VIDEO_DRIVER_X11_XINPUT2 1)
       
   389 
       
   390         # Check for multitouch
       
   391         check_c_source_compiles("
       
   392             #include <X11/Xlib.h>
       
   393             #include <X11/Xproto.h>
       
   394             #include <X11/extensions/XInput2.h>
       
   395             int event_type = XI_TouchBegin;
       
   396             XITouchClassInfo *t;
       
   397             Status XIAllowTouchEvents(Display *a,int b,unsigned int c,Window d,int f)
       
   398             {
       
   399               return (Status)0;
       
   400             }
       
   401             int main(int argc, char **argv) {}" HAVE_XINPUT2_MULTITOUCH)
       
   402         if(HAVE_XINPUT2_MULTITOUCH)
       
   403           set(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH 1)
       
   404         endif(HAVE_XINPUT2_MULTITOUCH)
       
   405       endif(VIDEO_X11_XINPUT AND HAVE_XINPUT_H)
       
   406 
       
   407       if(VIDEO_X11_XRANDR AND HAVE_XRANDR_H)
       
   408         if(HAVE_X11_SHARED AND XRANDR_LIB)
       
   409           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR "\"${XRANDR_LIB}\"")
       
   410         else(HAVE_X11_SHARED AND XRANDR_LIB)
       
   411           list(APPEND EXTRA_LIBS ${XRANDR_LIB})
       
   412         endif(HAVE_X11_SHARED AND XRANDR_LIB)
       
   413         set(SDL_VIDEO_DRIVER_X11_XRANDR 1)
       
   414         set(HAVE_VIDEO_X11_XRANDR TRUE)
       
   415       endif(VIDEO_X11_XRANDR AND HAVE_XRANDR_H)
       
   416 
       
   417       if(VIDEO_X11_XSCRNSAVER AND HAVE_XSS_H)
       
   418         if(HAVE_X11_SHARED AND XSS_LIB)
       
   419           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS "\"${XSS_LIB}\"")
       
   420         else(HAVE_X11_SHARED AND XSS_LIB)
       
   421           list(APPEND EXTRA_LIBS ${XSS_LIB})
       
   422         endif(HAVE_X11_SHARED AND XSS_LIB)
       
   423         set(SDL_VIDEO_DRIVER_X11_XSCRNSAVER 1)
       
   424         set(HAVE_VIDEO_X11_XSCRNSAVER TRUE)
       
   425       endif(VIDEO_X11_XSCRNSAVER AND HAVE_XSS_H)
       
   426 
       
   427       if(VIDEO_X11_XSHAPE AND HAVE_XSHAPE_H)
       
   428         set(SDL_VIDEO_DRIVER_X11_XSHAPE 1)
       
   429         set(HAVE_VIDEO_X11_XSHAPE TRUE)
       
   430       endif(VIDEO_X11_XSHAPE AND HAVE_XSHAPE_H)
       
   431 
       
   432       if(VIDEO_X11_XVM AND HAVE_XF86VM_H)
       
   433         if(HAVE_X11_SHARED AND XF86VMODE_LIB)
       
   434           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE "\"${XF86VMODE_LIB}\"")
       
   435         else(HAVE_X11_SHARED AND XF86VMODE_LIB)
       
   436           list(APPEND EXTRA_LIBS ${XF86VMODE_LIB})
       
   437         endif(HAVE_X11_SHARED AND XF86VMODE_LIB)
       
   438         set(SDL_VIDEO_DRIVER_X11_XVIDMODE 1)
       
   439         set(HAVE_VIDEO_X11_XVM TRUE)
       
   440       endif(VIDEO_X11_XVM AND HAVE_XF86VM_H)
       
   441 
       
   442       set(CMAKE_REQUIRED_LIBRARIES)
       
   443     endif(X11_LIB)
       
   444   endif(VIDEO_X11)
       
   445 endmacro(CheckX11)
       
   446 
       
   447 # Requires:
       
   448 # - n/a
       
   449 #
       
   450 macro(CheckCOCOA)
       
   451   if(VIDEO_COCOA)
       
   452     check_c_source_compiles("
       
   453         #import <Cocoa/Cocoa.h>
       
   454         int main (int argc, char** argv) {}" HAVE_VIDEO_COCOA)
       
   455     if(HAVE_VIDEO_COCOA)
       
   456       file(GLOB COCOA_SOURCES ${SDL2_SOURCE_DIR}/src/video/cocoa/*.m)
       
   457       set(SOURCE_FILES ${SOURCE_FILES} ${COCOA_SOURCES})
       
   458       set(SDL_VIDEO_DRIVER_COCOA 1)
       
   459       set(HAVE_SDL_VIDEO TRUE)
       
   460     endif(HAVE_VIDEO_COCOA)
       
   461   endif(VIDEO_COCOA)
       
   462 endmacro(CheckCOCOA)
       
   463 
       
   464 # Requires:
       
   465 # - PkgCheckModules
       
   466 # Optional:
       
   467 # - DIRECTFB_SHARED opt
       
   468 # - HAVE_DLOPEN opt
       
   469 macro(CheckDirectFB)
       
   470   if(VIDEO_DIRECTFB)
       
   471     pkg_check_modules(PKG_DIRECTFB directfb>=1.0.0)
       
   472     if(PKG_DIRECTFB_FOUND)
       
   473       set(HAVE_VIDEO_DIRECTFB TRUE)
       
   474       file(GLOB DIRECTFB_SOURCES ${SDL2_SOURCE_DIR}/src/video/directfb/*.c)
       
   475       set(SOURCE_FILES ${SOURCE_FILES} ${DIRECTFB_SOURCES})
       
   476       set(SDL_VIDEO_DRIVER_DIRECTFB 1)
       
   477       set(SDL_VIDEO_RENDER_DIRECTFB 1)
       
   478       list(APPEND EXTRA_CFLAGS ${PKG_DIRECTFB_CFLAGS})
       
   479       if(DIRECTFB_SHARED)
       
   480         if(NOT HAVE_DLOPEN)
       
   481           message_warn("You must have SDL_LoadObject() support for dynamic DirectFB loading")
       
   482         else()
       
   483           find_library(D_DIRECTFB_LIB directfb)
       
   484           get_filename_component(F_DIRECTFB_LIB ${D_DIRECTFB_LIB} NAME)
       
   485           set(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC "\"${F_DIRECTFB_LIB}\"")
       
   486           set(HAVE_DIRECTFB_SHARED TRUE)
       
   487         endif(NOT HAVE_DLOPEN)
       
   488       else(DIRECTFB_SHARED)
       
   489         list(APPEND EXTRA_LDFLAGS ${PKG_DIRECTFB_LDFLAGS})
       
   490       endif(DIRECTFB_SHARED)
       
   491       set(HAVE_SDL_VIDEO TRUE)
       
   492     endif(PKG_DIRECTFB_FOUND)
       
   493   endif(VIDEO_DIRECTFB)
       
   494 endmacro(CheckDirectFB)
       
   495 
       
   496 # Requires:
       
   497 # - nada
       
   498 macro(CheckOpenGLX11)
       
   499   if(VIDEO_OPENGL)
       
   500     check_c_source_compiles("
       
   501         #include <GL/gl.h>
       
   502         #include <GL/glx.h>
       
   503         int main(int argc, char** argv) {}" HAVE_VIDEO_OPENGL)
       
   504 
       
   505     if(HAVE_VIDEO_OPENGL)
       
   506       set(HAVE_VIDEO_OPENGL TRUE)
       
   507       set(SDL_VIDEO_OPENGL 1)
       
   508       set(SDL_VIDEO_OPENGL_GLX 1)
       
   509       set(SDL_VIDEO_RENDER_OGL 1)
       
   510       list(APPEND EXTRA_LIBS GL)
       
   511     endif(HAVE_VIDEO_OPENGL)
       
   512   endif(VIDEO_OPENGL)
       
   513 endmacro(CheckOpenGLX11)
       
   514 
       
   515 # Requires:
       
   516 # - nada
       
   517 macro(CheckOpenGLESX11)
       
   518   if(VIDEO_OPENGLES)
       
   519     check_c_source_compiles("
       
   520         #include <EGL/egl.h>
       
   521         int main (int argc, char** argv) {}" HAVE_VIDEO_OPENGLES)
       
   522     if(HAVE_VIDEO_OPENGLES)
       
   523       check_c_source_compiles("
       
   524           #include <GLES/gl.h>
       
   525           #include <GLES/glext.h>
       
   526           int main (int argc, char** argv) {}" HAVE_VIDEO_OPENGLES_V1)
       
   527       if(HAVE_VIDEO_OPENGLES_V1)
       
   528         set(SDL_VIDEO_OPENGL_ES 1)
       
   529         set(SDL_VIDEO_RENDER_OGL_ES 1)
       
   530       endif(HAVE_VIDEO_OPENGLES_V1)
       
   531       check_c_source_compiles("
       
   532           #include <GLES2/gl2.h>
       
   533           #include <GLES2/gl2ext.h>
       
   534           int main (int argc, char** argv) {}" HAVE_VIDEO_OPENGLES_V2)
       
   535       if(HAVE_VIDEO_OPENGLES_V2)
       
   536         set(SDL_VIDEO_OPENGL_ES2 1)
       
   537         set(SDL_VIDEO_RENDER_OGL_ES2 1)
       
   538       endif(HAVE_VIDEO_OPENGLES_V2)
       
   539     endif(HAVE_VIDEO_OPENGLES)
       
   540   endif(VIDEO_OPENGLES)
       
   541 endmacro(CheckOpenGLESX11)
       
   542 
       
   543 # Rquires:
       
   544 # - nada
       
   545 # Optional:
       
   546 # - THREADS opt
       
   547 # Sets:
       
   548 # PTHREAD_CFLAGS
       
   549 # PTHREAD_LIBS
       
   550 macro(CheckPTHREAD)
       
   551   if(PTHREADS)
       
   552     if(LINUX)
       
   553       set(PTHREAD_CFLAGS "-D_REENTRANT")
       
   554       set(PTHREAD_LDFLAGS "-lpthread")
       
   555     elseif(BSDI)
       
   556       set(PTHREAD_CFLAGS "-D_REENTRANT -D_THREAD_SAFE")
       
   557       set(PTHREAD_LDFLAGS "")
       
   558     elseif(DARWIN)
       
   559       set(PTHREAD_CFLAGS "-D_THREAD_SAFE")
       
   560       # causes Carbon.p complaints?
       
   561       # set(PTHREAD_CFLAGS "-D_REENTRANT -D_THREAD_SAFE")
       
   562       set(PTHREAD_LDFLAGS "")
       
   563     elseif(FREEBSD)
       
   564       set(PTHREAD_CFLAGS "-D_REENTRANT -D_THREAD_SAFE")
       
   565       set(PTHREAD_LDFLAGS "-pthread")
       
   566     elseif(NETBSD)
       
   567       set(PTHREAD_CFLAGS "-D_REENTRANT -D_THREAD_SAFE")
       
   568       set(PTHREAD_LDFLAGS "-lpthread")
       
   569     elseif(OPENBSD)
       
   570       set(PTHREAD_CFLAGS "-D_REENTRANT")
       
   571       set(PTHREAD_LDFLAGS "-pthread")
       
   572     elseif(SOLARIS)
       
   573       set(PTHREAD_CFLAGS "-D_REENTRANT")
       
   574       set(PTHREAD_LDFLAGS "-pthread -lposix4")
       
   575     elseif(SYSV5)
       
   576       set(PTHREAD_CFLAGS "-D_REENTRANT -Kthread")
       
   577       set(PTHREAD_LDFLAGS "")
       
   578     elseif(AIX)
       
   579       set(PTHREAD_CFLAGS "-D_REENTRANT -mthreads")
       
   580       set(PTHREAD_LDFLAGS "-pthread")
       
   581     elseif(HPUX)
       
   582       set(PTHREAD_CFLAGS "-D_REENTRANT")
       
   583       set(PTHREAD_LDFLAGS "-L/usr/lib -pthread")
       
   584     else()
       
   585       set(PTHREAD_CFLAGS "-D_REENTRANT")
       
   586       set(PTHREAD_LDFLAGS "-lpthread")
       
   587     endif(LINUX)
       
   588 
       
   589     # Run some tests
       
   590     set(CMAKE_REQUIRED_FLAGS "${PTHREAD_CFLAGS} ${PTHREAD_LDFLAGS}")
       
   591     check_c_source_runs("
       
   592         #include <pthread.h>
       
   593         int main(int argc, char** argv) {
       
   594           pthread_attr_t type;
       
   595           pthread_attr_init(&type);
       
   596           return 0;
       
   597         }" HAVE_PTHREADS)
       
   598     if(HAVE_PTHREADS)
       
   599       set(SDL_THREAD_PTHREAD 1)
       
   600       list(APPEND EXTRA_CFLAGS ${PTHREAD_CFLAGS})
       
   601       list(APPEND EXTRA_LDFLAGS ${PTHREAD_LDFLAGS})
       
   602       set(SDL_CFLAGS "${SDL_CFLAGS} ${PTHREAD_CFLAGS}")
       
   603       list(APPEND SDL_LIBS ${PTHREAD_LDFLAGS})
       
   604 
       
   605       check_c_source_compiles("
       
   606         #include <pthread.h>
       
   607         int main(int argc, char **argv) {
       
   608           pthread_mutexattr_t attr;
       
   609           pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
       
   610         }" HAVE_RECURSIVE_MUTEXES)
       
   611       if(HAVE_RECURSIVE_MUTEXES)
       
   612         set(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX 1)
       
   613       else(HAVE_RECURSIVE_MUTEXES)
       
   614         check_c_source_compiles("
       
   615             #include <pthread.h>
       
   616             int main(int argc, char **argv) {
       
   617               pthread_mutexattr_t attr;
       
   618               pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
       
   619             }" HAVE_RECURSIVE_MUTEXES_NP)
       
   620         if(HAVE_RECURSIVE_MUTEXES_NP)
       
   621           set(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP 1)
       
   622         endif(HAVE_RECURSIVE_MUTEXES_NP)
       
   623       endif(HAVE_RECURSIVE_MUTEXES)
       
   624 
       
   625       if(PTHREADS_SEM)
       
   626         check_c_source_compiles("#include <pthread.h>
       
   627                                  #include <semaphore.h>" HAVE_PTHREADS_SEM)
       
   628         if(HAVE_PTHREADS_SEM)
       
   629           check_c_source_compiles("
       
   630               #include <pthread.h>
       
   631               #include <semaphore.h>
       
   632               int main(int argc, char **argv) {
       
   633                   sem_timedwait(NULL, NULL);
       
   634                   return 0;
       
   635               }" HAVE_SEM_TIMEDWAIT)
       
   636         endif(HAVE_PTHREADS_SEM)
       
   637       endif(PTHREADS_SEM)
       
   638 
       
   639       check_c_source_compiles("
       
   640           #include <pthread.h>
       
   641           int main(int argc, char** argv) {
       
   642               pthread_spin_trylock(NULL);
       
   643               return 0;
       
   644           }" HAVE_PTHREAD_SPINLOCK)
       
   645 
       
   646       check_c_source_compiles("
       
   647           #include <pthread.h>
       
   648           #include <pthread_np.h>
       
   649           int main(int argc, char** argv) { return 0; }" HAVE_PTHREAD_NP_H)
       
   650       check_function_exists(pthread_setname_np HAVE_PTHREAD_setNAME_NP)
       
   651       check_function_exists(pthread_set_name_np HAVE_PTHREAD_set_NAME_NP)
       
   652       set(CMAKE_REQUIRED_FLAGS)
       
   653 
       
   654       set(SOURCE_FILES ${SOURCE_FILES}
       
   655           ${SDL2_SOURCE_DIR}/src/thread/pthread/SDL_systhread.c
       
   656           ${SDL2_SOURCE_DIR}/src/thread/pthread/SDL_sysmutex.c   # Can be faked, if necessary
       
   657           ${SDL2_SOURCE_DIR}/src/thread/pthread/SDL_syscond.c    # Can be faked, if necessary
       
   658           )
       
   659       if(HAVE_PTHREADS_SEM)
       
   660         set(SOURCE_FILES ${SOURCE_FILES}
       
   661             ${SDL2_SOURCE_DIR}/src/thread/pthread/SDL_syssem.c)
       
   662       else(HAVE_PTHREADS_SEM)
       
   663         set(SOURCE_FILES ${SOURCE_FILES}
       
   664             ${SDL2_SOURCE_DIR}/src/thread/generic/SDL_syssem.c)
       
   665       endif(HAVE_PTHREADS_SEM)
       
   666       set(HAVE_SDL_THREADS TRUE)
       
   667     endif(HAVE_PTHREADS)
       
   668   endif(PTHREADS)
       
   669 endmacro(CheckPTHREAD)
       
   670 
       
   671 # Requires
       
   672 # - nada
       
   673 # Optional:
       
   674 # Sets:
       
   675 # USB_LIBS
       
   676 # USB_CFLAGS
       
   677 macro(CheckUSBHID)
       
   678   check_library_exists(usbhid hid_init "" LIBUSBHID)
       
   679   if(LIBUSBHID)
       
   680     check_include_file(usbhid.h HAVE_USBHID_H)
       
   681     if(HAVE_USBHID_H)
       
   682       set(USB_CFLAGS "-DHAVE_USBHID_H")
       
   683     endif(HAVE_USBHID_H)
       
   684 
       
   685     check_include_file(libusbhid.h HAVE_LIBUSBHID_H)
       
   686     if(HAVE_LIBUSBHID_H)
       
   687       set(USB_CFLAGS "${USB_CFLAGS} -DHAVE_LIBUSBHID_H")
       
   688     endif(HAVE_LIBUSBHID_H)
       
   689     set(USB_LIBS ${USB_LIBS} usbhid)
       
   690   else(LIBUSBHID)
       
   691     check_include_file(usb.h HAVE_USB_H)
       
   692     if(HAVE_USB_H)
       
   693       set(USB_CFLAGS "-DHAVE_USB_H")
       
   694     endif(HAVE_USB_H)
       
   695     check_include_file(libusb.h HAVE_LIBUSB_H)
       
   696     if(HAVE_LIBUSB_H)
       
   697       set(USB_CFLAGS "${USB_CFLAGS} -DHAVE_LIBUSB_H")
       
   698     endif(HAVE_LIBUSB_H)
       
   699     check_library_exists(usb hid_init "" LIBUSB)
       
   700     if(LIBUSB)
       
   701       set(USB_LIBS ${USB_LIBS} usb)
       
   702     endif(LIBUSB)
       
   703   endif(LIBUSBHID)
       
   704 
       
   705   set(CMAKE_REQUIRED_FLAGS "${USB_CFLAGS}")
       
   706   set(CMAKE_REQUIRED_LIBRARIES "${USB_LIBS}")
       
   707   check_c_source_compiles("
       
   708        #include <sys/types.h>
       
   709         #if defined(HAVE_USB_H)
       
   710         #include <usb.h>
       
   711         #endif
       
   712         #ifdef __DragonFly__
       
   713         # include <bus/usb/usb.h>
       
   714         # include <bus/usb/usbhid.h>
       
   715         #else
       
   716         # include <dev/usb/usb.h>
       
   717         # include <dev/usb/usbhid.h>
       
   718         #endif
       
   719         #if defined(HAVE_USBHID_H)
       
   720         #include <usbhid.h>
       
   721         #elif defined(HAVE_LIBUSB_H)
       
   722         #include <libusb.h>
       
   723         #elif defined(HAVE_LIBUSBHID_H)
       
   724         #include <libusbhid.h>
       
   725         #endif
       
   726         int main(int argc, char **argv) {
       
   727           struct report_desc *repdesc;
       
   728           struct usb_ctl_report *repbuf;
       
   729           hid_kind_t hidkind;
       
   730           return 0;
       
   731         }" HAVE_USBHID)
       
   732   if(HAVE_USBHID)
       
   733     check_c_source_compiles("
       
   734           #include <sys/types.h>
       
   735           #if defined(HAVE_USB_H)
       
   736           #include <usb.h>
       
   737           #endif
       
   738           #ifdef __DragonFly__
       
   739           # include <bus/usb/usb.h>
       
   740           # include <bus/usb/usbhid.h>
       
   741           #else
       
   742           # include <dev/usb/usb.h>
       
   743           # include <dev/usb/usbhid.h>
       
   744           #endif
       
   745           #if defined(HAVE_USBHID_H)
       
   746           #include <usbhid.h>
       
   747           #elif defined(HAVE_LIBUSB_H)
       
   748           #include <libusb.h>
       
   749           #elif defined(HAVE_LIBUSBHID_H)
       
   750           #include <libusbhid.h>
       
   751           #endif
       
   752           int main(int argc, char** argv) {
       
   753             struct usb_ctl_report buf;
       
   754             if (buf.ucr_data) { }
       
   755             return 0;
       
   756           }" HAVE_USBHID_UCR_DATA)
       
   757     if(HAVE_USBHID_UCR_DATA)
       
   758       set(USB_CFLAGS "${USB_CFLAGS} -DUSBHID_UCR_DATA")
       
   759     endif(HAVE_USBHID_UCR_DATA)
       
   760 
       
   761     check_c_source_compiles("
       
   762           #include <sys/types.h>
       
   763           #if defined(HAVE_USB_H)
       
   764           #include <usb.h>
       
   765           #endif
       
   766           #ifdef __DragonFly__
       
   767           #include <bus/usb/usb.h>
       
   768           #include <bus/usb/usbhid.h>
       
   769           #else
       
   770           #include <dev/usb/usb.h>
       
   771           #include <dev/usb/usbhid.h>
       
   772           #endif
       
   773           #if defined(HAVE_USBHID_H)
       
   774           #include <usbhid.h>
       
   775           #elif defined(HAVE_LIBUSB_H)
       
   776           #include <libusb.h>
       
   777           #elif defined(HAVE_LIBUSBHID_H)
       
   778           #include <libusbhid.h>
       
   779           #endif
       
   780           int main(int argc, char **argv) {
       
   781             report_desc_t d;
       
   782             hid_start_parse(d, 1, 1);
       
   783             return 0;
       
   784           }" HAVE_USBHID_NEW)
       
   785     if(HAVE_USBHID_NEW)
       
   786       set(USB_CFLAGS "${USB_CFLAGS} -DUSBHID_NEW")
       
   787     endif(HAVE_USBHID_NEW)
       
   788 
       
   789     check_c_source_compiles("
       
   790         #include <machine/joystick.h>
       
   791         int main(int argc, char** argv) {
       
   792             struct joystick t;
       
   793             return 0;
       
   794         }" HAVE_MACHINE_JOYSTICK)
       
   795     if(HAVE_MACHINE_JOYSTICK)
       
   796       set(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H 1)
       
   797     endif(HAVE_MACHINE_JOYSTICK)
       
   798     set(SDL_JOYSTICK_USBHID 1)
       
   799     file(GLOB BSD_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/bsd/*.c)
       
   800     set(SOURCE_FILES ${SOURCE_FILES} ${BSD_JOYSTICK_SOURCES})
       
   801     list(APPEND EXTRA_CFLAGS ${USB_CFLAGS})
       
   802     list(APPEND EXTRA_LIBS ${USB_LIBS})
       
   803     set(HAVE_SDL_JOYSTICK TRUE)
       
   804 
       
   805     set(CMAKE_REQUIRED_LIBRARIES)
       
   806     set(CMAKE_REQUIRED_FLAGS)
       
   807   endif(HAVE_USBHID)
       
   808 endmacro(CheckUSBHID)