forked from libsdl-org/SDL
-
Notifications
You must be signed in to change notification settings - Fork 0
/
CMakeLists.txt
3717 lines (3280 loc) · 125 KB
/
CMakeLists.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
cmake_minimum_required(VERSION 3.16)
# See docs/release_checklist.md
project(SDL3 LANGUAGES C VERSION "3.1.7")
if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
set(SDL3_SUBPROJECT OFF)
else()
set(SDL3_SUBPROJECT ON)
endif()
# CMake 3.0 expands the "if(${A})" in "set(OFF 1);set(A OFF);if(${A})" to "if(1)"
# CMake 3.24+ emits a warning when not set.
unset(OFF)
unset(ON)
if(POLICY CMP0054)
cmake_policy(SET CMP0054 NEW)
endif()
include(CheckLibraryExists)
include(CheckIncludeFile)
include(CheckLanguage)
include(CheckSymbolExists)
include(CheckCSourceCompiles)
include(CheckCSourceRuns)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckStructHasMember)
include(CMakeDependentOption)
include(CMakeParseArguments)
include(CMakePushCheckState)
include(GNUInstallDirs)
if(NOT DEFINED OpenGL_GL_PREFERENCE)
set(OpenGL_GL_PREFERENCE GLVND)
endif()
find_package(PkgConfig)
list(APPEND CMAKE_MODULE_PATH "${SDL3_SOURCE_DIR}/cmake")
include("${SDL3_SOURCE_DIR}/cmake/macros.cmake")
include("${SDL3_SOURCE_DIR}/cmake/sdlchecks.cmake")
include("${SDL3_SOURCE_DIR}/cmake/sdlcompilers.cmake")
include("${SDL3_SOURCE_DIR}/cmake/sdlcpu.cmake")
include("${SDL3_SOURCE_DIR}/cmake/sdlmanpages.cmake")
include("${SDL3_SOURCE_DIR}/cmake/sdlplatform.cmake")
include("${SDL3_SOURCE_DIR}/cmake/sdltargets.cmake")
include("${SDL3_SOURCE_DIR}/cmake/GetGitRevisionDescription.cmake")
include("${SDL3_SOURCE_DIR}/cmake/3rdparty.cmake")
include("${SDL3_SOURCE_DIR}/cmake/PreseedMSVCCache.cmake")
include("${SDL3_SOURCE_DIR}/cmake/PreseedEmscriptenCache.cmake")
SDL_DetectCompiler()
SDL_DetectTargetCPUArchitectures(SDL_CPUS)
# Increment this if there is an incompatible change - but if that happens,
# we should rename the library from SDL3 to SDL4, at which point this would
# reset to 0 anyway.
set(SDL_SO_VERSION_MAJOR "0")
set(SDL_SO_VERSION_MINOR "${PROJECT_VERSION_MINOR}")
set(SDL_SO_VERSION_PATCH "${PROJECT_VERSION_PATCH}")
set(SDL_SO_VERSION "${SDL_SO_VERSION_MAJOR}.${SDL_SO_VERSION_MINOR}.${SDL_SO_VERSION_PATCH}")
if(PROJECT_VERSION_MINOR MATCHES "[02468]$")
math(EXPR SDL_DYLIB_COMPAT_VERSION_MAJOR "100 * ${PROJECT_VERSION_MINOR} + 1")
set(SDL_DYLIB_COMPAT_VERSION_MINOR "0")
math(EXPR SDL_DYLIB_CURRENT_VERSION_MAJOR "${SDL_DYLIB_COMPAT_VERSION_MAJOR}")
set(SDL_DYLIB_CURRENT_VERSION_MINOR "${PROJECT_VERSION_PATCH}")
else()
math(EXPR SDL_DYLIB_COMPAT_VERSION_MAJOR "100 * ${PROJECT_VERSION_MINOR} + ${PROJECT_VERSION_PATCH} + 1")
set(SDL_DYLIB_COMPAT_VERSION_MINOR "0")
math(EXPR SDL_DYLIB_CURRENT_VERSION_MAJOR "${SDL_DYLIB_COMPAT_VERSION_MAJOR}")
set(SDL_DYLIB_CURRENT_VERSION_MINOR "0")
endif()
set(SDL_DYLIB_CURRENT_VERSION_PATCH "0")
set(SDL_DYLIB_COMPAT_VERSION_PATCH "0")
set(SDL_DYLIB_CURRENT_VERSION "${SDL_DYLIB_CURRENT_VERSION_MAJOR}.${SDL_DYLIB_CURRENT_VERSION_MINOR}.${SDL_DYLIB_CURRENT_VERSION_PATCH}")
set(SDL_DYLIB_COMPAT_VERSION "${SDL_DYLIB_COMPAT_VERSION_MAJOR}.${SDL_DYLIB_COMPAT_VERSION_MINOR}.${SDL_DYLIB_COMPAT_VERSION_PATCH}")
message(DEBUG "SDL_SO_VERSION=${SDL_SO_VERSION} SDL_DYLIB_CURRENT_VERSION=${SDL_DYLIB_CURRENT_VERSION} SDL_DYLIB_COMPAT_VERSION=${SDL_DYLIB_COMPAT_VERSION}")
set(SDL_FRAMEWORK_VERSION "A")
set(SDL_CHECK_REQUIRED_INCLUDES "" CACHE STRING "Extra includes (for CMAKE_REQUIRED_INCLUDES)")
set(SDL_CHECK_REQUIRED_LINK_OPTIONS "" CACHE STRING "Extra link options (for CMAKE_REQUIRED_LINK_OPTIONS)")
mark_as_advanced(SDL_CHECK_REQUIRED_INCLUDES SDL_CHECK_REQUIRED_LINK_OPTIONS)
string(APPEND CMAKE_REQUIRED_FLAGS " -D_GNU_SOURCE=1")
list(APPEND CMAKE_REQUIRED_INCLUDES ${SDL_CHECK_REQUIRED_INCLUDES})
list(APPEND CMAKE_REQUIRED_LINK_OPTIONS ${SDL_CHECK_REQUIRED_LINK_OPTIONS})
# Get the platform
SDL_DetectCMakePlatform()
# Don't mistake macOS for unix
if(UNIX AND NOT ANDROID AND NOT APPLE AND NOT RISCOS)
set(UNIX_SYS ON)
else()
set(UNIX_SYS OFF)
endif()
if(UNIX OR APPLE)
set(UNIX_OR_MAC_SYS ON)
else()
set(UNIX_OR_MAC_SYS OFF)
endif()
# Emscripten pthreads work, but you need to have a non-pthread fallback build
# for systems without support. It's not currently enough to not use
# pthread functions in a pthread-build; it won't start up on unsupported
# browsers. As such, you have to explicitly enable it on Emscripten builds
# for the time being. This default will change to ON once this becomes
# commonly supported in browsers or the Emscripten team makes a single
# binary work everywhere.
if (UNIX_OR_MAC_SYS AND NOT EMSCRIPTEN)
set(SDL_PTHREADS_DEFAULT ON)
else()
set(SDL_PTHREADS_DEFAULT OFF)
endif()
if(UNIX_SYS OR ANDROID)
set(SDL_CLOCK_GETTIME_DEFAULT ON)
else()
set(SDL_CLOCK_GETTIME_DEFAULT OFF)
endif()
# The hidraw support doesn't catch Xbox, PS4 and Nintendo controllers,
# so we'll just use libusb when it's available. libusb does not support iOS,
# so we default to yes on iOS.
if(IOS OR TVOS OR VISIONOS OR WATCHOS OR ANDROID)
set(SDL_HIDAPI_LIBUSB_AVAILABLE FALSE)
else()
set(SDL_HIDAPI_LIBUSB_AVAILABLE TRUE)
endif()
set(SDL_ASSEMBLY_DEFAULT OFF)
if(USE_CLANG OR USE_GCC OR USE_INTELCC OR MSVC_VERSION GREATER 1400)
set(SDL_ASSEMBLY_DEFAULT ON)
endif()
set(SDL_GCC_ATOMICS_DEFAULT OFF)
if(USE_GCC OR USE_CLANG OR USE_INTELCC OR USE_QCC)
set(SDL_GCC_ATOMICS_DEFAULT ON)
endif()
# Default option knobs
set(SDL_LIBC_DEFAULT ON)
set(SDL_SYSTEM_ICONV_DEFAULT ON)
if(WINDOWS OR MACOS OR IOS OR TVOS OR VISIONOS OR WATCHOS)
set(SDL_SYSTEM_ICONV_DEFAULT OFF)
endif()
if(MSVC)
if(NOT SDL_LIBC)
# Make sure /RTC1 is disabled, otherwise it will use functions from the CRT
foreach(flag_var
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
string(REGEX REPLACE "/RTC(su|[1su])" "" ${flag_var} "${${flag_var}}")
endforeach(flag_var)
endif()
if(MSVC_CLANG)
# clang-cl treats /W4 as '-Wall -Wextra' -- we don't need -Wextra
foreach(flag_var
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
string(REGEX REPLACE "/W4" "/W3" ${flag_var} "${${flag_var}}")
endforeach(flag_var)
endif()
endif()
set(SDL_SHARED_DEFAULT ON)
set(SDL_STATIC_DEFAULT ON)
set(SDL_SHARED_AVAILABLE ON)
set(SDL_STATIC_AVAILABLE ON)
# All these *_DEFAULT vars will default to ON if not specified,
# so you only need to override them if they need to be disabled.
if(EMSCRIPTEN)
# Set up default values for the currently supported set of subsystems:
# Emscripten/Javascript does not have assembly support, a dynamic library
# loading architecture, or low-level CPU inspection.
set(SDL_ASSEMBLY_DEFAULT OFF)
set(SDL_SHARED_AVAILABLE OFF)
endif()
if(VITA OR PSP OR PS2 OR N3DS OR RISCOS)
set(SDL_SHARED_AVAILABLE OFF)
endif()
if((RISCOS OR UNIX_SYS) AND NOT (LINUX OR NETBSD OR OPENBSD))
set(SDL_OSS_DEFAULT ON)
else()
set(SDL_OSS_DEFAULT OFF)
endif()
if(SDL_SHARED_DEFAULT AND SDL_STATIC_DEFAULT AND SDL_SHARED_AVAILABLE)
if(DEFINED BUILD_SHARED_LIBS)
# When defined, use BUILD_SHARED_LIBS as default
if(BUILD_SHARED_LIBS)
set(SDL_STATIC_DEFAULT OFF)
else()
set(SDL_SHARED_DEFAULT OFF)
endif()
else()
# Default to just building the shared library
set(SDL_STATIC_DEFAULT OFF)
endif()
endif()
set(SDL_SUBSYSTEMS )
macro(define_sdl_subsystem _name)
cmake_parse_arguments("_ds" "" "" "DEPS" ${ARGN})
string(TOUPPER ${_name} _uname)
if(NOT DEFINED SDL_${_uname}_DEFAULT)
set(SDL_${_uname}_DEFAULT ON)
endif()
if(_ds_DEPS)
cmake_dependent_option(SDL_${_uname} "Enable the ${_name} subsystem" "${SDL_${_uname}_DEFAULT}" "${_ds_DEPS}" OFF)
else()
option(SDL_${_uname} "Enable the ${_name} subsystem" "${SDL_${_uname}_DEFAULT}")
endif()
list(APPEND SDL_SUBSYSTEMS "${_name}")
endmacro()
define_sdl_subsystem(Audio)
define_sdl_subsystem(Video)
define_sdl_subsystem(GPU DEPS SDL_VIDEO)
define_sdl_subsystem(Render DEPS SDL_VIDEO)
define_sdl_subsystem(Camera DEPS SDL_VIDEO)
define_sdl_subsystem(Joystick)
define_sdl_subsystem(Haptic)
define_sdl_subsystem(Hidapi)
define_sdl_subsystem(Power)
define_sdl_subsystem(Sensor)
define_sdl_subsystem(Dialog)
cmake_dependent_option(SDL_FRAMEWORK "Build SDL libraries as Apple Framework" OFF "APPLE" OFF)
if(SDL_FRAMEWORK)
set(SDL_STATIC_AVAILABLE FALSE)
endif()
if(UNIX AND NOT ANDROID AND NOT RISCOS AND NOT SDL_FRAMEWORK)
set(SDL_RPATH_DEFAULT ON)
else()
set(SDL_RPATH_DEFAULT OFF)
endif()
set(SDL_PRESEED_AVAILABLE OFF)
if(COMMAND SDL_Preseed_CMakeCache)
set(SDL_PRESEED_AVAILABLE ON)
endif()
# Allow some projects to be built conditionally.
set_option(SDL_DISABLE_INSTALL "Disable installation of SDL3" ${SDL3_SUBPROJECT})
cmake_dependent_option(SDL_DISABLE_INSTALL_CPACK "Create binary SDL3 archive using CPack" ${SDL3_SUBPROJECT} "NOT SDL_DISABLE_INSTALL" ON)
cmake_dependent_option(SDL_DISABLE_INSTALL_DOCS "Install docs for SDL3" ON "NOT SDL_DISABLE_INSTALL;NOT SDL_FRAMEWORK" ON)
set_option(SDL_DISABLE_UNINSTALL "Disable uninstallation of SDL3" OFF)
cmake_dependent_option(SDL_PRESEED "Preseed CMake cache to speed up configuration" ON "${SDL_PRESEED_AVAILABLE}" OFF)
cmake_dependent_option(SDL_DISABLE_ANDROID_JAR "Disable creation of SDL3.jar" ${SDL3_SUBPROJECT} "ANDROID" ON)
option_string(SDL_ASSERTIONS "Enable internal sanity checks (auto/disabled/release/enabled/paranoid)" "auto")
set_option(SDL_ASSEMBLY "Enable assembly routines" ${SDL_ASSEMBLY_DEFAULT})
dep_option(SDL_AVX "Use AVX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_AVX2 "Use AVX2 assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_AVX512F "Use AVX512F assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_SSE "Use SSE assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_SSE2 "Use SSE2 assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_SSE3 "Use SSE3 assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_SSE4_1 "Use SSE4.1 assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_SSE4_2 "Use SSE4.2 assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_MMX "Use MMX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_X86 OR SDL_CPU_X64" OFF)
dep_option(SDL_ALTIVEC "Use Altivec assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_POWERPC32 OR SDL_CPU_POWERPC64" OFF)
dep_option(SDL_ARMSIMD "Use SIMD assembly blitters on ARM" OFF "SDL_ASSEMBLY;SDL_CPU_ARM32" OFF)
dep_option(SDL_ARMNEON "Use NEON assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_ARM32 OR SDL_CPU_ARM64" OFF)
dep_option(SDL_LSX "Use LSX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_LOONGARCH64" OFF)
dep_option(SDL_LASX "Use LASX assembly routines" ON "SDL_ASSEMBLY;SDL_CPU_LOONGARCH64" OFF)
set_option(SDL_LIBC "Use the system C library" ${SDL_LIBC_DEFAULT})
set_option(SDL_SYSTEM_ICONV "Use iconv() from system-installed libraries" ${SDL_SYSTEM_ICONV_DEFAULT})
set_option(SDL_LIBICONV "Prefer iconv() from libiconv, if available, over libc version" OFF)
set_option(SDL_GCC_ATOMICS "Use gcc builtin atomics" ${SDL_GCC_ATOMICS_DEFAULT})
dep_option(SDL_DBUS "Enable D-Bus support" ON "${UNIX_SYS}" OFF)
dep_option(SDL_DISKAUDIO "Support the disk writer audio driver" ON "SDL_AUDIO" OFF)
dep_option(SDL_DUMMYAUDIO "Support the dummy audio driver" ON "SDL_AUDIO" OFF)
dep_option(SDL_DUMMYVIDEO "Use dummy video driver" ON "SDL_VIDEO" OFF)
dep_option(SDL_IBUS "Enable IBus support" ON "${UNIX_SYS}" OFF)
dep_option(SDL_OPENGL "Include OpenGL support" ON "SDL_VIDEO;NOT IOS;NOT VISIONOS;NOT TVOS;NOT WATCHOS" OFF)
dep_option(SDL_OPENGLES "Include OpenGL ES support" ON "SDL_VIDEO;NOT VISIONOS;NOT TVOS;NOT WATCHOS" OFF)
set_option(SDL_PTHREADS "Use POSIX threads for multi-threading" ${SDL_PTHREADS_DEFAULT})
dep_option(SDL_PTHREADS_SEM "Use pthread semaphores" ON "SDL_PTHREADS" OFF)
dep_option(SDL_OSS "Support the OSS audio API" ${SDL_OSS_DEFAULT} "UNIX_SYS OR RISCOS;SDL_AUDIO" OFF)
dep_option(SDL_ALSA "Support the ALSA audio API" ${UNIX_SYS} "SDL_AUDIO" OFF)
dep_option(SDL_ALSA_SHARED "Dynamically load ALSA audio support" ON "SDL_ALSA" OFF)
dep_option(SDL_JACK "Support the JACK audio API" ${UNIX_SYS} "SDL_AUDIO" OFF)
dep_option(SDL_JACK_SHARED "Dynamically load JACK audio support" ON "SDL_JACK" OFF)
set_option(SDL_PIPEWIRE "Use Pipewire audio" ${UNIX_SYS})
dep_option(SDL_PIPEWIRE_SHARED "Dynamically load Pipewire support" ON "SDL_PIPEWIRE" OFF)
dep_option(SDL_PULSEAUDIO "Use PulseAudio" ${UNIX_SYS} "SDL_AUDIO" OFF)
dep_option(SDL_PULSEAUDIO_SHARED "Dynamically load PulseAudio support" ON "SDL_PULSEAUDIO" OFF)
dep_option(SDL_SNDIO "Support the sndio audio API" ${UNIX_SYS} "SDL_AUDIO" OFF)
dep_option(SDL_SNDIO_SHARED "Dynamically load the sndio audio API" ON "SDL_SNDIO" OFF)
set_option(SDL_RPATH "Use an rpath when linking SDL" ${SDL_RPATH_DEFAULT})
set_option(SDL_CLOCK_GETTIME "Use clock_gettime() instead of gettimeofday()" ${SDL_CLOCK_GETTIME_DEFAULT})
dep_option(SDL_X11 "Use X11 video driver" ${UNIX_SYS} "SDL_VIDEO" OFF)
dep_option(SDL_X11_SHARED "Dynamically load X11 support" ON "SDL_X11" OFF)
set(SDL_X11_OPTIONS Xcursor Xdbe XInput Xfixes Xrandr Xscrnsaver XShape)
foreach(_SUB ${SDL_X11_OPTIONS})
string(TOUPPER "SDL_X11_${_SUB}" _OPT)
dep_option(${_OPT} "Enable ${_SUB} support" ON "SDL_X11" OFF)
endforeach()
dep_option(SDL_WAYLAND "Use Wayland video driver" ${UNIX_SYS} "SDL_VIDEO" OFF)
dep_option(SDL_WAYLAND_SHARED "Dynamically load Wayland support" ON "SDL_WAYLAND" OFF)
dep_option(SDL_WAYLAND_LIBDECOR "Use client-side window decorations on Wayland" ON "SDL_WAYLAND" OFF)
dep_option(SDL_WAYLAND_LIBDECOR_SHARED "Dynamically load libdecor support" ON "SDL_WAYLAND_LIBDECOR;SDL_WAYLAND_SHARED" OFF)
dep_option(SDL_RPI "Use Raspberry Pi video driver" ON "SDL_VIDEO;UNIX_SYS;SDL_CPU_ARM32 OR SDL_CPU_ARM64" OFF)
dep_option(SDL_ROCKCHIP "Use ROCKCHIP Hardware Acceleration video driver" ON "SDL_VIDEO;UNIX_SYS;SDL_CPU_ARM32 OR SDL_CPU_ARM64" OFF)
dep_option(SDL_COCOA "Use Cocoa video driver" ON "APPLE" OFF)
dep_option(SDL_DIRECTX "Use DirectX for Windows audio/video" ON "SDL_AUDIO OR SDL_VIDEO;WINDOWS" OFF)
dep_option(SDL_XINPUT "Use Xinput for Windows" ON "WINDOWS" OFF)
dep_option(SDL_WASAPI "Use the Windows WASAPI audio driver" ON "WINDOWS;SDL_AUDIO" OFF)
dep_option(SDL_RENDER_D3D "Enable the Direct3D 9 render driver" ON "SDL_RENDER;SDL_DIRECTX" OFF)
dep_option(SDL_RENDER_D3D11 "Enable the Direct3D 11 render driver" ON "SDL_RENDER;SDL_DIRECTX" OFF)
dep_option(SDL_RENDER_D3D12 "Enable the Direct3D 12 render driver" ON "SDL_RENDER;SDL_DIRECTX" OFF)
dep_option(SDL_RENDER_METAL "Enable the Metal render driver" ON "SDL_RENDER;${APPLE}" OFF)
dep_option(SDL_RENDER_GPU "Enable the SDL_GPU render driver" ON "SDL_RENDER;SDL_GPU" OFF)
dep_option(SDL_VIVANTE "Use Vivante EGL video driver" ON "${UNIX_SYS};SDL_CPU_ARM32" OFF)
dep_option(SDL_VULKAN "Enable Vulkan support" ON "SDL_VIDEO;ANDROID OR APPLE OR LINUX OR FREEBSD OR WINDOWS" OFF)
dep_option(SDL_RENDER_VULKAN "Enable the Vulkan render driver" ON "SDL_RENDER;SDL_VULKAN" OFF)
dep_option(SDL_METAL "Enable Metal support" ON "APPLE" OFF)
set_option(SDL_OPENVR "Use OpenVR video driver" OFF)
dep_option(SDL_KMSDRM "Use KMS DRM video driver" ${UNIX_SYS} "SDL_VIDEO" OFF)
dep_option(SDL_KMSDRM_SHARED "Dynamically load KMS DRM support" ON "SDL_KMSDRM" OFF)
set_option(SDL_OFFSCREEN "Use offscreen video driver" ON)
dep_option(SDL_DUMMYCAMERA "Support the dummy camera driver" ON SDL_CAMERA OFF)
option_string(SDL_BACKGROUNDING_SIGNAL "number to use for magic backgrounding signal or 'OFF'" OFF)
option_string(SDL_FOREGROUNDING_SIGNAL "number to use for magic foregrounding signal or 'OFF'" OFF)
dep_option(SDL_HIDAPI "Enable the HIDAPI subsystem" ON "NOT VISIONOS" OFF)
dep_option(SDL_HIDAPI_LIBUSB "Use libusb for low level joystick drivers" ON SDL_HIDAPI_LIBUSB_AVAILABLE OFF)
dep_option(SDL_HIDAPI_LIBUSB_SHARED "Dynamically load libusb support" ON SDL_HIDAPI_LIBUSB OFF)
dep_option(SDL_HIDAPI_JOYSTICK "Use HIDAPI for low level joystick drivers" ON SDL_HIDAPI OFF)
dep_option(SDL_VIRTUAL_JOYSTICK "Enable the virtual-joystick driver" ON SDL_HIDAPI OFF)
set_option(SDL_LIBUDEV "Enable libudev support" ON)
set_option(SDL_ASAN "Use AddressSanitizer to detect memory errors" OFF)
set_option(SDL_CCACHE "Use Ccache to speed up build" OFF)
set_option(SDL_CLANG_TIDY "Run clang-tidy static analysis" OFF)
set_option(SDL_GPU_DXVK "Build SDL_GPU with DXVK support" OFF)
set(SDL_VENDOR_INFO "" CACHE STRING "Vendor name and/or version to add to SDL_REVISION")
cmake_dependent_option(SDL_SHARED "Build a shared version of the library" ${SDL_SHARED_DEFAULT} ${SDL_SHARED_AVAILABLE} OFF)
cmake_dependent_option(SDL_STATIC "Build a static version of the library" ${SDL_STATIC_DEFAULT} ${SDL_STATIC_AVAILABLE} OFF)
option(SDL_TEST_LIBRARY "Build the SDL3_test library" ON)
dep_option(SDL_TESTS "Build the test directory" OFF SDL_TEST_LIBRARY OFF)
dep_option(SDL_INSTALL_TESTS "Install test-cases" OFF "NOT SDL_DISABLE_INSTALL;NOT SDL_FRAMEWORK" OFF)
dep_option(SDL_TESTS_LINK_SHARED "link tests to shared SDL library" "${SDL_SHARED}" "SDL_SHARED;SDL_STATIC" "${SDL_SHARED}")
set(SDL_TESTS_TIMEOUT_MULTIPLIER "1" CACHE STRING "Timeout multiplier to account for really slow machines")
set_option(SDL_EXAMPLES "Build the examples directory")
dep_option(SDL_EXAMPLES_LINK_SHARED "link examples to shared SDL library" "${SDL_SHARED}" "SDL_SHARED;SDL_STATIC" "${SDL_SHARED}")
if(VITA)
set_option(VIDEO_VITA_PIB "Build with PSVita piglet gles2 support" OFF)
set_option(VIDEO_VITA_PVR "Build with PSVita PVR gles/gles2 support" OFF)
endif()
if(NOT (SDL_SHARED OR SDL_STATIC))
message(FATAL_ERROR "SDL_SHARED and SDL_STATIC cannot both be disabled")
endif()
if(SDL_PRESEED)
SDL_Preseed_CMakeCache()
endif()
if(SDL_SHARED)
add_library(SDL3-shared SHARED)
add_library(SDL3::SDL3-shared ALIAS SDL3-shared)
SDL_AddCommonCompilerFlags(SDL3-shared)
if ("c_std_99" IN_LIST CMAKE_C_COMPILE_FEATURES)
target_compile_features(SDL3-shared PRIVATE c_std_99)
else()
message(WARNING "target_compile_features does not know c_std_99 for C compiler")
endif()
endif()
if(SDL_STATIC)
add_library(SDL3-static STATIC)
add_library(SDL3::SDL3-static ALIAS SDL3-static)
SDL_AddCommonCompilerFlags(SDL3-static)
if ("c_std_99" IN_LIST CMAKE_C_COMPILE_FEATURES)
target_compile_features(SDL3-static PRIVATE c_std_99)
else()
message(WARNING "target_compile_features does not know c_std_99 for C compiler")
endif()
endif()
if(SDL_TEST_LIBRARY)
add_library(SDL3_test STATIC)
add_library(SDL3::SDL3_test ALIAS SDL3_test)
SDL_AddCommonCompilerFlags(SDL3_test)
endif()
# Make sure SDL3::SDL3 always exists
if(TARGET SDL3::SDL3-shared)
add_library(SDL3::SDL3 ALIAS SDL3-shared)
else()
add_library(SDL3::SDL3 ALIAS SDL3-static)
endif()
sdl_pc_link_options("-lSDL3")
# Enable large file support on 32-bit glibc, so that we can access files
# with large inode numbers
check_symbol_exists("__GLIBC__" "stdlib.h" LIBC_IS_GLIBC)
if (LIBC_IS_GLIBC AND CMAKE_SIZEOF_VOID_P EQUAL 4)
# Enable large file support on 32-bit glibc, so that we can access files with large inode numbers
sdl_compile_definitions(PRIVATE "_FILE_OFFSET_BITS=64")
# Enable 64-bit time_t on 32-bit glibc, so that time stamps remain correct beyond January 2038
sdl_compile_definitions(PRIVATE "_TIME_BITS=64")
endif()
check_linker_supports_version_file(HAVE_WL_VERSION_SCRIPT)
if(HAVE_WL_VERSION_SCRIPT)
sdl_shared_link_options("-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/src/dynapi/SDL_dynapi.sym")
else()
if((LINUX AND LIBC_IS_GLIBC) OR ANDROID)
message(FATAL_ERROR "Linker does not support '-Wl,--version-script=xxx.sym'. This is required on the current host platform (${SDL_CMAKE_PLATFORM}).")
endif()
endif()
if(CYGWIN)
# We build SDL on cygwin without the UNIX emulation layer
sdl_include_directories(PUBLIC SYSTEM "/usr/include/mingw")
cmake_push_check_state()
string(APPEND CMAKE_REQUIRED_FLAGS " -mno-cygwin")
check_c_source_compiles("int main(int argc, char **argv) { return 0; }"
HAVE_GCC_NO_CYGWIN)
cmake_pop_check_state()
if(HAVE_GCC_NO_CYGWIN)
sdl_shared_link_options("-mno-cygwin")
endif()
endif()
# General includes
sdl_compile_definitions(PRIVATE "USING_GENERATED_CONFIG_H")
sdl_include_directories(
PRIVATE
"${SDL3_BINARY_DIR}/include-config-$<LOWER_CASE:$<CONFIG>>/build_config"
"${SDL3_BINARY_DIR}/include-revision"
"${SDL3_SOURCE_DIR}/include"
)
# Note: The clang toolset for Visual Studio does not support the '-idirafter' option.
if(USE_GCC OR USE_INTELCC OR (USE_CLANG AND NOT MSVC_CLANG))
sdl_compile_options(NO_EXPORT PRIVATE "$<BUILD_INTERFACE:-idirafter${SDL3_SOURCE_DIR}/src/video/khronos>")
else()
sdl_include_directories(NO_EXPORT SYSTEM PRIVATE "$<BUILD_INTERFACE:${SDL3_SOURCE_DIR}/src/video/khronos>")
endif()
if(MSVC AND TARGET SDL3-shared)
if(SDL_CPU_X64)
enable_language(ASM_MASM)
set(asm_src "${SDL3_SOURCE_DIR}/src/stdlib/SDL_mslibc_x64.masm")
target_compile_options(SDL3-shared PRIVATE "$<$<COMPILE_LANGUAGE:ASM_MASM>:/nologo>")
set_property(SOURCE "${asm_src}" PROPERTY LANGUAGE "ASM_MASM")
target_sources(SDL3-shared PRIVATE "${asm_src}")
elseif(SDL_CPU_ARM32 OR SDL_CPU_ARM64)
# FIXME: ARM assembler (armasm.exe/armasm64.exe) is NOT ASM_MASM, and does currently not work with CMake
# (https://gitlab.kitware.com/cmake/cmake/-/issues/18912)
endif()
endif()
if(USE_INTELCC)
# warning #39: division by zero
# warning #239: floating point underflow
# warning #264: floating-point value does not fit in required floating-point type
set_property(SOURCE "${SDL3_SOURCE_DIR}/src/libm/e_exp.c" APPEND_STRING PROPERTY COMPILE_FLAGS " -wd239 -wd264")
set_property(SOURCE "${SDL3_SOURCE_DIR}/src/libm/e_log.c" APPEND_STRING PROPERTY COMPILE_FLAGS " -wd39")
set_property(SOURCE "${SDL3_SOURCE_DIR}/src/libm/e_log10.c" APPEND_STRING PROPERTY COMPILE_FLAGS " -wd39")
set_property(SOURCE
"${SDL3_SOURCE_DIR}/src/libm/e_exp.c"
"${SDL3_SOURCE_DIR}/src/libm/e_log.c"
"${SDL3_SOURCE_DIR}/src/libm/e_log10.c"
PROPERTY SKIP_PRECOMPILE_HEADERS 1)
endif()
set(SDL_DEFAULT_ASSERT_LEVEL_CONFIGURED 1)
if(SDL_ASSERTIONS MATCHES "^(auto|)$")
# Do nada - use optimization settings to determine the assertion level
set(SDL_DEFAULT_ASSERT_LEVEL )
set(SDL_DEFAULT_ASSERT_LEVEL_CONFIGURED 0)
elseif(SDL_ASSERTIONS MATCHES "^(disabled|0)$")
set(SDL_DEFAULT_ASSERT_LEVEL 0)
elseif(SDL_ASSERTIONS MATCHES "^(release|1)$")
set(SDL_DEFAULT_ASSERT_LEVEL 1)
elseif(SDL_ASSERTIONS MATCHES "^(enabled|2)$")
set(SDL_DEFAULT_ASSERT_LEVEL 2)
elseif(SDL_ASSERTIONS MATCHES "^(paranoid|3)$")
set(SDL_DEFAULT_ASSERT_LEVEL 3)
else()
message(FATAL_ERROR "unknown assertion level")
endif()
set(HAVE_ASSERTIONS ${SDL_ASSERTIONS})
if(NOT SDL_BACKGROUNDING_SIGNAL STREQUAL "OFF")
sdl_compile_definitions(PRIVATE "SDL_BACKGROUNDING_SIGNAL=${SDL_BACKGROUNDING_SIGNAL}")
endif()
if(NOT SDL_FOREGROUNDING_SIGNAL STREQUAL "OFF")
sdl_compile_definitions(PRIVATE "SDL_FOREGROUNDING_SIGNAL=${SDL_FOREGROUNDING_SIGNAL}")
endif()
# Compiler option evaluation
if(USE_GCC OR USE_CLANG OR USE_INTELCC OR USE_QCC)
if(SDL_GCC_ATOMICS)
check_c_source_compiles("int main(int argc, char **argv) {
int a;
void *x, *y, *z;
__sync_lock_test_and_set(&a, 4);
__sync_lock_test_and_set(&x, y);
__sync_fetch_and_add(&a, 1);
__sync_bool_compare_and_swap(&a, 5, 10);
__sync_bool_compare_and_swap(&x, y, z);
return 0; }" COMPILER_SUPPORTS_GCC_ATOMICS)
set(HAVE_GCC_ATOMICS ${COMPILER_SUPPORTS_GCC_ATOMICS})
if(NOT HAVE_GCC_ATOMICS)
check_c_source_compiles("int main(int argc, char **argv) {
int a;
__sync_lock_test_and_set(&a, 1);
__sync_lock_release(&a);
return 0; }" COMPILER_SUPPORTS_SYNC_LOCK_TEST_AND_SET)
set(HAVE_GCC_SYNC_LOCK_TEST_AND_SET ${COMPILER_SUPPORTS_SYNC_LOCK_TEST_AND_SET})
endif()
endif()
cmake_push_check_state()
string(APPEND CMAKE_REQUIRED_FLAGS " -fvisibility=hidden -Werror")
check_c_source_compiles("
#if !defined(__GNUC__) || __GNUC__ < 4
#error SDL only uses visibility attributes in GCC 4 or newer
#endif
__attribute__((visibility(\"default\"))) int foo(void);
__attribute__((visibility(\"hidden\"))) int bar(void);
int foo(void) { return 0; }
int bar(void) { return 1; }
int main(void) { return 0; }" HAVE_GCC_FVISIBILITY)
cmake_pop_check_state()
if(APPLE)
check_c_compiler_flag(-Wno-error=deprecated-declarations COMPILER_SUPPORTS_WNO_ERROR_DEPRECATED_DECLARATIONS)
if(COMPILER_SUPPORTS_WNO_ERROR_DEPRECATED_DECLARATIONS)
sdl_compile_options(PRIVATE "-Wno-error=deprecated-declarations")
endif()
endif()
if(APPLE)
check_linker_flag(C "-Wl,-undefined,error" LINKER_SUPPORTS_WL_UNDEFINED_ERROR)
if(LINKER_SUPPORTS_WL_UNDEFINED_ERROR)
sdl_shared_link_options("-Wl,-undefined,error")
endif()
elseif(NOT OPENBSD)
cmake_push_check_state()
check_linker_flag(C "-Wl,--no-undefined" LINKER_SUPPORTS_WL_NO_UNDEFINED)
#FIXME: originally this if had an additional "AND NOT (USE_CLANG AND WINDOWS)"
if(LINKER_SUPPORTS_WL_NO_UNDEFINED)
sdl_shared_link_options("-Wl,--no-undefined")
endif()
endif()
endif()
if(MSVC)
sdl_compile_definitions(
PRIVATE
"_CRT_SECURE_NO_DEPRECATE"
"_CRT_NONSTDC_NO_DEPRECATE"
"_CRT_SECURE_NO_WARNINGS"
)
# CET support was added in VS 2019 16.7
if(MSVC_VERSION GREATER 1926 AND CMAKE_GENERATOR_PLATFORM MATCHES "Win32|x64")
# Mark SDL3.dll as compatible with Control-flow Enforcement Technology (CET)
sdl_shared_link_options("-CETCOMPAT")
endif()
endif()
if(CMAKE_C_COMPILER_ID STREQUAL "MSVC")
# Due to a limitation of Microsoft's LTO implementation, LTO must be disabled for memcpy and memset.
# The same applies to various functions normally belonging in the C library (for x86 architecture).
set_property(SOURCE "${SDL3_SOURCE_DIR}/src/stdlib/SDL_mslibc.c" APPEND_STRING PROPERTY COMPILE_FLAGS " /GL-")
endif()
if(SDL_ASSEMBLY)
set(HAVE_ASSEMBLY TRUE)
if(SDL_MMX)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -mmmx")
endif()
check_c_source_compiles("
#include <mmintrin.h>
void ints_add(int *dest, int *a, int *b, unsigned size) {
for (; size >= 2; size -= 2, dest += 2, a += 2, b += 2) {
*(__m64*)dest = _mm_add_pi32(*(__m64*)a, *(__m64*)b);
}
}
int main(int argc, char *argv[]) {
ints_add((int*)0, (int*)0, (int*)0, 0);
return 0;
}" COMPILER_SUPPORTS_MMX)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_MMX)
set(HAVE_MMX TRUE)
endif()
endif()
if(SDL_SSE)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -msse")
endif()
check_c_source_compiles("
#include <xmmintrin.h>
void floats_add(float *dest, float *a, float *b, unsigned size) {
for (; size >= 4; size -= 4, dest += 4, a += 4, b += 4) {
_mm_storeu_ps(dest, _mm_add_ps(_mm_loadu_ps(a), _mm_loadu_ps (b)));
}
}
int main(int argc, char **argv) {
floats_add((float*)0, (float*)0, (float*)0, 0);
return 0;
}" COMPILER_SUPPORTS_SSE)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_SSE)
set(HAVE_SSE TRUE)
endif()
endif()
if(SDL_SSE2)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -msse2")
endif()
check_c_source_compiles("
#include <emmintrin.h>
void doubles_add(double *dest, double *a, double *b, unsigned size) {
for (; size >= 4; size -= 4, dest += 4, a += 4, b += 4) {
_mm_store_pd(dest, _mm_add_pd(_mm_loadu_pd(a), _mm_loadu_pd(b)));
}
}
int main(int argc, char **argv) {
doubles_add((double*)0, (double*)0, (double*)0, 0);
return 0;
}" COMPILER_SUPPORTS_SSE2)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_SSE2)
set(HAVE_SSE2 TRUE)
endif()
endif()
if(SDL_SSE3)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -msse3")
endif()
check_c_source_compiles("
#include <pmmintrin.h>
void ints_add(int *dest, int *a, int *b, unsigned size) {
for (; size >= 4; size -= 4, dest += 4, a += 4, b += 4) {
_mm_storeu_si128((__m128i*)dest, _mm_add_epi32(_mm_lddqu_si128((__m128i*)a), _mm_lddqu_si128((__m128i*)b)));
}
}
int main(int argc, char **argv) {
ints_add((int*)0, (int*)0, (int*)0, 0);
return 0;
}" COMPILER_SUPPORTS_SSE3)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_SSE3)
set(HAVE_SSE3 TRUE)
endif()
endif()
if(SDL_SSE4_1)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -msse4.1")
endif()
check_c_source_compiles("
#include <smmintrin.h>
void ints_mul(int *dest, int *a, int *b, unsigned size) {
for (; size >= 4; size -= 4, dest += 4, a += 4, b += 4) {
_mm_storeu_si128((__m128i*)dest, _mm_mullo_epi32(_mm_lddqu_si128((__m128i*)a), _mm_lddqu_si128((__m128i*)b)));
}
}
int main(int argc, char **argv) {
ints_mul((int*)0, (int*)0, (int*)0, 0);
return 0;
}" COMPILER_SUPPORTS_SSE4_1)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_SSE4_1)
set(HAVE_SSE4_1 TRUE)
endif()
endif()
if(SDL_SSE4_2)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -msse4.2")
endif()
check_c_source_compiles("
#include <nmmintrin.h>
unsigned calc_crc32c(const char *text, unsigned len) {
unsigned crc32c = ~0;
for (; len >= 4; len -= 4, text += 4) {
crc32c = (unsigned)_mm_crc32_u32(crc32c, *(unsigned*)text);
}
return crc32c;
}
int main(int argc, char **argv) {
calc_crc32c(\"SDL_SSE4\",8);
return 0;
}" COMPILER_SUPPORTS_SSE4_2)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_SSE4_2)
set(HAVE_SSE4_2 TRUE)
endif()
endif()
if(SDL_AVX)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -mavx")
endif()
check_c_source_compiles("
#include <immintrin.h>
void floats_add(float *dest, float *a, float *b, unsigned size) {
for (; size >= 8; size -= 8, dest += 8, a += 8, b += 8) {
_mm256_storeu_ps(dest, _mm256_add_ps(_mm256_loadu_ps(a), _mm256_loadu_ps(b)));
}
}
int main(int argc, char **argv) {
floats_add((float*)0, (float*)0, (float*)0, 0);
return 0;
}" COMPILER_SUPPORTS_AVX)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_AVX)
set(HAVE_AVX TRUE)
endif()
endif()
if(SDL_AVX2)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -mavx2")
endif()
check_c_source_compiles("
#include <immintrin.h>
void ints_add(int *dest, int *a, int *b, unsigned size) {
for (; size >= 8; size -= 8, dest += 8, a += 8, b += 8) {
_mm256_storeu_si256((__m256i*)dest, _mm256_add_epi32(_mm256_loadu_si256((__m256i*)a), _mm256_loadu_si256((__m256i*)b)));
}
}
int main(int argc, char **argv) {
ints_add((int*)0, (int*)0, (int*)0, 0);
return 0;
}" COMPILER_SUPPORTS_AVX2)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_AVX2)
set(HAVE_AVX2 TRUE)
endif()
endif()
if(SDL_AVX512F)
cmake_push_check_state()
if(USE_GCC OR USE_CLANG OR USE_INTELCC)
string(APPEND CMAKE_REQUIRED_FLAGS " -mavx512f")
endif()
check_c_source_compiles("
#include <immintrin.h>
void floats_add(float *dest, float *a, float *b, unsigned size) {
for (; size >= 16; size -= 16, dest += 16, a += 16, b += 16) {
_mm512_storeu_ps(dest, _mm512_add_ps(_mm512_loadu_ps(a), _mm512_loadu_ps(b)));
}
}
int main(int argc, char **argv) {
floats_add((float*)0, (float*)0, (float*)0, 0);
return 0;
}" COMPILER_SUPPORTS_AVX512F)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_AVX512F)
set(HAVE_AVX512F TRUE)
endif()
endif()
if(SDL_ARMNEON)
check_c_source_compiles("
#include <arm_neon.h>
void floats_add(float *dest, float *a, float *b, unsigned size) {
for (; size >= 4; size -= 4, dest += 4, a += 4, b += 4) {
vst1q_f32(dest, vaddq_f32(vld1q_f32(a), vld1q_f32(b)));
}
}
int main(int argc, char *argv[]) {
floats_add((float*)0, (float*)0, (float*)0, 0);
return 0;
}" COMPILER_SUPPORTS_ARMNEON)
if(COMPILER_SUPPORTS_ARMNEON)
set(HAVE_ARMNEON TRUE)
endif()
endif()
if(USE_GCC OR USE_CLANG)
# TODO: Those all seem to be quite GCC specific - needs to be
# reworked for better compiler support
if(SDL_ALTIVEC)
cmake_push_check_state()
string(APPEND CMAKE_REQUIRED_FLAGS " -maltivec")
check_c_source_compiles("
#include <altivec.h>
vector unsigned int vzero() {
return vec_splat_u32(0);
}
int main(int argc, char **argv) { return 0; }" COMPILER_SUPPORTS_ALTIVEC)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_ALTIVEC)
set(HAVE_ALTIVEC TRUE)
set(SDL_ALTIVEC_BLITTERS 1)
sdl_compile_options(PRIVATE "-maltivec")
set_property(SOURCE "${SDL3_SOURCE_DIR}/src/video/SDL_blit_N.c" APPEND PROPERTY COMPILE_DEFINITIONS "SDL_ENABLE_ALTIVEC")
set_property(SOURCE "${SDL3_SOURCE_DIR}/src/video/SDL_blit_N.c" PROPERTY SKIP_PRECOMPILE_HEADERS 1)
endif()
endif()
if(SDL_LSX)
cmake_push_check_state()
string(APPEND CMAKE_REQUIRED_FLAGS " -mlsx")
check_c_source_compiles("
#ifndef __loongarch_sx
#error Assembler CPP flag not enabled
#endif
int main(int argc, char **argv) { return 0; }" COMPILER_SUPPORTS_LSX)
check_include_file("lsxintrin.h" HAVE_LSXINTRIN_H)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_LSX AND HAVE_LSXINTRIN_H)
set_property(SOURCE "${SDL3_SOURCE_DIR}/src/video/yuv2rgb/yuv_rgb_lsx.c" APPEND PROPERTY COMPILE_OPTIONS "-mlsx")
set(HAVE_LSX TRUE)
endif()
endif()
if(SDL_LASX)
cmake_push_check_state()
string(APPEND CMAKE_REQUIRED_FLAGS " -mlasx")
check_c_source_compiles("
#ifndef __loongarch_asx
#error Assembler CPP flag not enabled
#endif
int main(int argc, char **argv) { return 0; }" COMPILER_SUPPORTS_LASX)
check_include_file("lasxintrin.h" HAVE_LASXINTRIN_H)
cmake_pop_check_state()
if(COMPILER_SUPPORTS_LASX AND HAVE_LASXINTRIN_H)
set(HAVE_LASX TRUE)
endif()
endif()
endif()
endif()
if(NOT HAVE_MMX)
set(SDL_DISABLE_MMX 1)
endif()
if(NOT HAVE_SSE)
set(SDL_DISABLE_SSE 1)
endif()
if(NOT HAVE_SSE2)
set(SDL_DISABLE_SSE2 1)
endif()
if(NOT HAVE_SSE3)
set(SDL_DISABLE_SSE3 1)
endif()
if(NOT HAVE_SSE4_1)
set(SDL_DISABLE_SSE4_1 1)
endif()
if(NOT HAVE_SSE4_2)
set(SDL_DISABLE_SSE4_2 1)
endif()
if(NOT HAVE_AVX)
set(SDL_DISABLE_AVX 1)
endif()
if(NOT HAVE_AVX2)
set(SDL_DISABLE_AVX2 1)
endif()
if(NOT HAVE_AVX512F)
set(SDL_DISABLE_AVX512F 1)
endif()
if(NOT HAVE_LSX)
set(SDL_DISABLE_LSX 1)
endif()
if(NOT HAVE_LASX)
set(SDL_DISABLE_LASX 1)
endif()
if(NOT HAVE_ARMNEON)
set(SDL_DISABLE_NEON 1)
endif()
set(SDL_DISABLE_ALLOCA 0)
check_include_file("alloca.h" "HAVE_ALLOCA_H")
if(MSVC)
check_include_file("malloc.h" "HAVE_MALLOC")
check_symbol_exists("_alloca" "malloc.h" _ALLOCA_IN_MALLOC_H)
if(NOT HAVE_ALLOCA_H AND NOT _ALLOCA_IN_MALLOC_H)
set(SDL_DISABLE_ALLOCA 1)
endif()
endif()
# TODO: Can't deactivate on FreeBSD? w/o LIBC, SDL_stdinc.h can't define anything.
if(SDL_LIBC)
set(available_headers)
set(HAVE_LIBC TRUE)
set(headers_to_check
float.h
iconv.h
inttypes.h
limits.h
malloc.h
math.h
memory.h
signal.h
stdarg.h
stdbool.h
stddef.h
stdint.h
stdio.h
stdlib.h
string.h
strings.h
sys/types.h
time.h
wchar.h
)
foreach(_HEADER IN LISTS headers_to_check)
string(TOUPPER "${_HEADER}" HEADER_IDENTIFIER)
string(REGEX REPLACE "[./]" "_" HEADER_IDENTIFIER "${HEADER_IDENTIFIER}")
set(LIBC_HAS_VAR "LIBC_HAS_${HEADER_IDENTIFIER}")
check_include_file("${_HEADER}" "${LIBC_HAS_VAR}")
set(HAVE_${HEADER_IDENTIFIER} ${${LIBC_HAS_VAR}})
if(HAVE_${HEADER_IDENTIFIER})
list(APPEND available_headers "${_HEADER}")
endif()
endforeach()
set(symbols_to_check
abs acos acosf asin asinf atan atan2 atan2f atanf atof atoi
bcopy
calloc ceil ceilf copysign copysignf cos cosf
_Exit exp expf
fabs fabsf floor floorf fmod fmodf fopen64 free fseeko fseeko64
getenv
_i64toa index itoa
log log10 log10f logf lround lroundf _ltoa
malloc memcmp memcpy memmove memset modf modff
pow powf putenv
realloc rindex round roundf
scalbn scalbnf setenv sin sinf sqr sqrt sqrtf sscanf strchr
strcmp strlcat strlcpy strlen strncmp strnlen strpbrk
strrchr strstr strnstr strtod strtok_r strtol strtoll strtoul strtoull
tan tanf trunc truncf
unsetenv
vsnprintf vsscanf
wcsnlen wcscmp wcsdup wcslcat wcslcpy wcslen wcsncmp wcsstr wcstol
)
if(WINDOWS)
list(APPEND symbols_to_check
_strrev _ui64toa _uitoa _ultoa _wcsdup
)
else()
list(APPEND symbols_to_check
strcasestr
)
endif()
check_library_exists(m pow "" HAVE_LIBM)
cmake_push_check_state()
if(HAVE_LIBM)
sdl_link_dependency(math LIBS m)
list(APPEND CMAKE_REQUIRED_LIBRARIES m)
endif()
foreach(_FN IN LISTS symbols_to_check)
string(TOUPPER ${_FN} _UPPER)
set(LIBC_HAS_VAR "LIBC_HAS_${_UPPER}")
check_symbol_exists("${_FN}" "${available_headers}" ${LIBC_HAS_VAR})
set(HAVE_${_UPPER} ${${LIBC_HAS_VAR}})