meson.build

   1 # Copyright © 2017 Intel Corporation
   2
   3 # Permission is hereby granted, free of charge, to any person obtaining a copy
   4 # of this software and associated documentation files (the "Software"), to deal
   5 # in the Software without restriction, including without limitation the rights
   6 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 # copies of the Software, and to permit persons to whom the Software is
   8 # furnished to do so, subject to the following conditions:
   9
  10 # The above copyright notice and this permission notice shall be included in
  11 # all copies or substantial portions of the Software.
  12
  13 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19 # SOFTWARE.
  20
  21 project(
  22   'mesa',
  23   ['c', 'cpp'],
  24   version : run_command(
  25     [find_program('python', 'python2', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.42',
  29   default_options : ['buildtype=debugoptimized', 'c_std=c99', 'cpp_std=c++11']
  30 )
  31
  32 # Arguments for the preprocessor, put these in a separate array from the C and
  33 # C++ (cpp in meson terminology) arguments since they need to be added to the
  34 # default arguments for both C and C++.
  35 pre_args = [
  36   '-D__STDC_CONSTANT_MACROS',
  37   '-D__STDC_FORMAT_MACROS',
  38   '-D__STDC_LIMIT_MACROS',
  39   '-DVERSION="@0@"'.format(meson.project_version()),
  40   '-DPACKAGE_VERSION=VERSION',
  41   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  42 ]
  43
  44 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  45 with_tests = get_option('build-tests')
  46 with_valgrind = get_option('valgrind')
  47 with_libunwind = get_option('libunwind')
  48 with_asm = get_option('asm')
  49 with_osmesa = get_option('osmesa')
  50 if get_option('texture-float')
  51   pre_args += '-DTEXTURE_FLOAT_ENABLED'
  52   message('WARNING: Floating-point texture enabled. Please consult docs/patents.txt and your lawyer before building mesa.')
  53 endif
  54
  55 # XXX: yeah, do these
  56 with_appledri = false
  57 with_windowsdri = false
  58
  59 dri_drivers_path = get_option('dri-drivers-path')
  60 if dri_drivers_path == ''
  61   dri_drivers_path = join_paths(get_option('libdir'), 'dri')
  62 endif
  63
  64 with_gles1 = get_option('gles1')
  65 with_gles2 = get_option('gles2')
  66 with_opengl = get_option('opengl')
  67 with_any_opengl = with_opengl or with_gles1 or with_gles2
  68 # Only build shared_glapi if at least one OpenGL API is enabled
  69 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  70
  71
  72 # shared-glapi is required if at least two OpenGL APIs are being built
  73 if not with_shared_glapi
  74   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  75       or (with_gles2 and with_opengl))
  76     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  77   endif
  78 endif
  79
  80 # We require OpenGL for OpenGL ES
  81 if (with_gles1 or with_gles2) and not with_opengl
  82   error('building OpenGL ES without OpenGL is not supported.')
  83 endif
  84
  85 with_dri = false
  86 with_dri_i915 = false
  87 with_dri_i965 = false
  88 with_dri_r100 = false
  89 with_dri_r200 = false
  90 with_dri_nouveau = false
  91 with_dri_swrast = false
  92 _drivers = get_option('dri-drivers')
  93 if _drivers == 'auto'
  94   # TODO: PPC, Sparc
  95   if not ['darwin', 'windows'].contains(host_machine.system())
  96     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
  97       _drivers = 'i915,i965,r100,r200,nouveau'
  98     else
  99       error('Unknown architecture. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 100     endif
 101   else
 102     error('Unknown OS. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 103   endif
 104 endif
 105 if _drivers != ''
 106   _split = _drivers.split(',')
 107   with_dri_i915 = _split.contains('i915')
 108   with_dri_i965 = _split.contains('i965')
 109   with_dri_r100 = _split.contains('r100')
 110   with_dri_r200 = _split.contains('r200')
 111   with_dri_nouveau = _split.contains('nouveau')
 112   with_dri_swrast = _split.contains('swrast')
 113   with_dri = true
 114 endif
 115
 116 with_gallium = false
 117 with_gallium_pl111 = false
 118 with_gallium_radeonsi = false
 119 with_gallium_nouveau = false
 120 with_gallium_freedreno = false
 121 with_gallium_softpipe = false
 122 with_gallium_vc4 = false
 123 with_gallium_vc5 = false
 124 with_gallium_etnaviv = false
 125 with_gallium_imx = false
 126 _drivers = get_option('gallium-drivers')
 127 if _drivers == 'auto'
 128   if not ['darwin', 'windows'].contains(host_machine.system())
 129     # TODO: PPC, Sparc
 130     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 131       _drivers = 'radeonsi,nouveau,swrast'
 132     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 133       _drivers = 'pl111,vc4,vc5,freedreno,etnaviv,imx,swrast'
 134     else
 135       error('Unknown architecture. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 136     endif
 137   else
 138     error('Unknown OS. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 139   endif
 140 endif
 141 if _drivers != ''
 142   _split = _drivers.split(',')
 143   with_gallium_pl111 = _split.contains('pl111')
 144   with_gallium_radeonsi = _split.contains('radeonsi')
 145   with_gallium_nouveau = _split.contains('nouveau')
 146   with_gallium_freedreno = _split.contains('freedreno')
 147   with_gallium_softpipe = _split.contains('swrast')
 148   with_gallium_vc4 = _split.contains('vc4')
 149   with_gallium_vc5 = _split.contains('vc5')
 150   with_gallium_etnaviv = _split.contains('etnaviv')
 151   with_gallium_imx = _split.contains('imx')
 152   with_gallium = true
 153 endif
 154
 155 with_intel_vk = false
 156 with_amd_vk = false
 157 with_any_vk = false
 158 _vulkan_drivers = get_option('vulkan-drivers')
 159 if _vulkan_drivers == 'auto'
 160   if not ['darwin', 'windows'].contains(host_machine.system())
 161     if host_machine.cpu_family().startswith('x86')
 162       _vulkan_drivers = 'amd,intel'
 163     else
 164       error('Unknown architecture. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 165     endif
 166   else
 167     # No vulkan driver supports windows or macOS currently
 168     _vulkan_drivers = ''
 169   endif
 170 endif
 171 if _vulkan_drivers != ''
 172   _split = _vulkan_drivers.split(',')
 173   with_intel_vk = _split.contains('intel')
 174   with_amd_vk = _split.contains('amd')
 175   with_any_vk = with_amd_vk or with_intel_vk
 176 endif
 177
 178 if with_dri_swrast and with_gallium_softpipe
 179   error('Only one swrast provider can be built')
 180 endif
 181 if with_gallium_imx and not with_gallium_etnaviv
 182   error('IMX driver requires etnaviv driver')
 183 endif
 184
 185 dep_libdrm_intel = []
 186 if with_dri_i915
 187   dep_libdrm_intel = dependency('libdrm_intel', version : '>= 2.4.75')
 188 endif
 189
 190 if host_machine.system() == 'darwin'
 191   with_dri_platform = 'apple'
 192 elif ['windows', 'cygwin'].contains(host_machine.system())
 193   with_dri_platform = 'windows'
 194 elif host_machine.system() == 'linux'
 195   # FIXME: This should include BSD and possibly other systems
 196   with_dri_platform = 'drm'
 197 else
 198   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 199   # assert here that one of those cases has been met.
 200   # FIXME: GNU (hurd) ends up here as well, but meson doesn't officially
 201   # support Hurd at time of writing (2017/11)
 202   with_dri_platform = 'none'
 203 endif
 204
 205 with_platform_android = false
 206 with_platform_wayland = false
 207 with_platform_x11 = false
 208 with_platform_drm = false
 209 with_platform_surfaceless = false
 210 egl_native_platform = ''
 211 _platforms = get_option('platforms')
 212 if _platforms == 'auto'
 213   if ['linux'].contains(host_machine.system())
 214     _platforms = 'x11,wayland,drm,surfaceless'
 215   else
 216     error('Unknown OS, no platforms enabled. Patches gladly accepted to fix this.')
 217   endif
 218 endif
 219 if _platforms != ''
 220   _split = _platforms.split(',')
 221   with_platform_android = _split.contains('android')
 222   with_platform_x11 = _split.contains('x11')
 223   with_platform_wayland = _split.contains('wayland')
 224   with_platform_drm = _split.contains('drm')
 225   with_platform_surfaceless = _split.contains('surfaceless')
 226   egl_native_platform = _split[0]
 227 endif
 228
 229 with_glx = get_option('glx')
 230 if with_glx == 'auto'
 231   if with_dri
 232     with_glx = 'dri'
 233   elif with_gallium
 234     # Even when building just gallium drivers the user probably wants dri
 235     with_glx = 'dri'
 236     with_dri = true
 237   elif with_platform_x11 and with_any_opengl and not with_any_vk
 238     # The automatic behavior should not be to turn on xlib based glx when
 239     # building only vulkan drivers
 240     with_glx = 'xlib'
 241   else
 242     with_glx = 'disabled'
 243   endif
 244 endif
 245
 246 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 247   with_gles1 = false
 248   with_gles2 = false
 249   with_opengl = false
 250   with_any_opengl = false
 251   with_shared_glapi = false
 252 endif
 253
 254 with_gbm = get_option('gbm')
 255 if with_gbm == 'auto' and with_dri  # TODO: or gallium
 256   with_gbm = host_machine.system() == 'linux'
 257 elif with_gbm == 'true'
 258   if not ['linux', 'bsd'].contains(host_machine.system())
 259     error('GBM only supports unix-like platforms')
 260   endif
 261   with_gbm = true
 262 else
 263   with_gbm = false
 264 endif
 265
 266 _egl = get_option('egl')
 267 if _egl == 'auto'
 268   with_egl = with_dri and with_shared_glapi and egl_native_platform != ''
 269 elif _egl == 'true'
 270   if not with_dri
 271     error('EGL requires dri')
 272   elif not with_shared_glapi
 273     error('EGL requires shared-glapi')
 274   elif egl_native_platform == ''
 275     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 276   endif
 277   with_egl = true
 278 else
 279   with_egl = false
 280 endif
 281
 282 # TODO: or virgl
 283 if with_egl and with_gallium_radeonsi and not (with_platform_drm or with_platform_surfaceless)
 284   error('RadeonSI requires drm or surfaceless platform when using EGL')
 285 endif
 286
 287 pre_args += '-DGLX_USE_TLS'
 288 if with_glx != 'disabled'
 289   if not (with_platform_x11 and with_any_opengl)
 290     if with_glx == 'auto'
 291       with_glx = 'disabled'
 292     else
 293       error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 294     endif
 295   elif with_glx == 'gallium-xlib'
 296     if not with_gallium
 297       error('Gallium-xlib based GLX requires at least one gallium driver')
 298     elif not with_gallium_softpipe
 299       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 300     elif with_dri
 301       error('gallium-xlib conflicts with any dri driver')
 302     endif
 303   elif with_glx == 'xlib'
 304     if with_dri
 305       error('xlib conflicts with any dri driver')
 306     endif
 307   elif with_glx == 'dri' and not with_dri
 308     error('dri based GLX requires at least one DRI driver')
 309   endif
 310 endif
 311
 312 with_glvnd = get_option('glvnd')
 313 if with_glvnd
 314   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 315     error('Cannot build glvnd support for GLX that is not DRI based.')
 316   elif with_glx == 'disabled' and not with_egl
 317     error('glvnd requires DRI based GLX and/or EGL')
 318   endif
 319 endif
 320
 321 # TODO: toggle for this
 322 with_glx_direct = true
 323
 324 if with_vulkan_icd_dir == ''
 325   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 326 endif
 327
 328 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 329 with_dri3 = get_option('dri3')
 330 if with_dri3 == 'auto'
 331   if host_machine.system() == 'linux' and with_dri2
 332     with_dri3 = true
 333   else
 334     with_dri3 = false
 335  endif
 336 elif with_dri3 == 'true'
 337   with_dri3 = true
 338 else
 339   with_dri3 = false
 340 endif
 341
 342 if with_any_vk and (with_platform_x11 and not with_dri3)
 343   error('Vulkan drivers require dri3 for X11 support')
 344 endif
 345 if with_dri or with_gallium
 346   if with_glx == 'disabled' and not with_egl
 347     error('building dri or gallium drivers require at least one window system')
 348   endif
 349 endif
 350
 351 with_gallium_xvmc = false
 352 with_gallium_vdpau = false
 353 with_gallium_omx = false  # this is bellagio
 354 with_gallium_va = false
 355 with_gallium_media = false
 356 dep_va = []
 357 _drivers = get_option('gallium-media')
 358 if _drivers != ''
 359   _split = _drivers.split(',')
 360   with_gallium_xvmc = _split.contains('xvmc')
 361   with_gallium_vdpau = _split.contains('vdpau')
 362   with_gallium_omx = _split.contains('omx')
 363   with_gallium_va = _split.contains('va')
 364   with_gallium_media = (with_gallium_xvmc or with_gallium_vdpau or
 365                         with_gallium_omx or with_gallium_va)
 366 endif
 367
 368 gl_pkgconfig_c_flags = []
 369 if with_platform_x11
 370   if with_any_vk or (with_glx == 'dri' and with_dri_platform == 'drm')
 371     pre_args += '-DHAVE_X11_PLATFORM'
 372   endif
 373   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 374     pre_args += '-DUSE_XSHM'
 375   else
 376     pre_args += '-DGLX_INDIRECT_RENDERING'
 377     if with_glx_direct
 378       pre_args += '-DGLX_DIRECT_RENDERING'
 379     endif
 380     if with_dri_platform == 'drm'
 381       pre_args += '-DGLX_USE_DRM'
 382     endif
 383   endif
 384 else
 385   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 386   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 387 endif
 388 if with_platform_drm
 389   if with_egl and not with_gbm
 390     error('EGL drm platform requires gbm')
 391   endif
 392   pre_args += '-DHAVE_DRM_PLATFORM'
 393 endif
 394 if with_platform_surfaceless
 395   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 396 endif
 397 if with_platform_android
 398   dep_android = [
 399     dependency('cutils'),
 400     dependency('hardware'),
 401     dependency('sync'),
 402   ]
 403   pre_args += '-DHAVE_ANDROID_PLATFORM'
 404 endif
 405
 406 prog_python2 = find_program('python2')
 407 has_mako = run_command(prog_python2, '-c', 'import mako')
 408 if has_mako.returncode() != 0
 409   error('Python (2.x) mako module required to build mesa.')
 410 endif
 411
 412 cc = meson.get_compiler('c')
 413 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 414   error('When using GCC, version 4.4.6 or later is required.')
 415 endif
 416
 417 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 418 if get_option('buildtype') == 'debug'
 419   pre_args += '-DDEBUG'
 420 endif
 421
 422 if get_option('shader-cache')
 423   pre_args += '-DENABLE_SHADER_CACHE'
 424 elif with_amd_vk
 425   error('Radv requires shader cache support')
 426 endif
 427
 428 # Check for GCC style builtins
 429 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 430              'ffsll', 'popcount', 'popcountll', 'unreachable']
 431   if cc.has_function(b)
 432     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 433   endif
 434 endforeach
 435
 436 # check for GCC __attribute__
 437 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 438              'warn_unused_result', 'weak',]
 439   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 440                  name : '__attribute__((@0@))'.format(a))
 441     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 442   endif
 443 endforeach
 444 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 445                name : '__attribute__((format(...)))')
 446   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 447 endif
 448 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 449                name : '__attribute__((packed))')
 450   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 451 endif
 452 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 453                name : '__attribute__((returns_nonnull))')
 454   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NONNULL'
 455 endif
 456 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 457                   int foo_hid(void) __attribute__((visibility("hidden")));
 458                   int foo_int(void) __attribute__((visibility("internal")));
 459                   int foo_pro(void) __attribute__((visibility("protected")));''',
 460                name : '__attribute__((visibility(...)))')
 461   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISBILITY'
 462 endif
 463 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 464                name : '__attribute__((alias(...)))')
 465   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 466 endif
 467
 468 # TODO: this is very incomplete
 469 if host_machine.system() == 'linux'
 470   pre_args += '-D_GNU_SOURCE'
 471 endif
 472
 473 # Check for generic C arguments
 474 c_args = []
 475 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 476              '-Werror=missing-prototypes', '-fno-math-errno',
 477              '-fno-trapping-math', '-Qunused-arguments']
 478   if cc.has_argument(a)
 479     c_args += a
 480   endif
 481 endforeach
 482 c_vis_args = []
 483 if cc.has_argument('-fvisibility=hidden')
 484   c_vis_args += '-fvisibility=hidden'
 485 endif
 486
 487 # Check for generic C++ arguments
 488 cpp = meson.get_compiler('cpp')
 489 cpp_args = []
 490 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 491              '-Qunused-arguments', '-Wno-non-virtual-dtor']
 492   if cpp.has_argument(a)
 493     cpp_args += a
 494   endif
 495 endforeach
 496 cpp_vis_args = []
 497 if cpp.has_argument('-fvisibility=hidden')
 498   cpp_vis_args += '-fvisibility=hidden'
 499 endif
 500
 501 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 502 # in parts of the mesa code base that need to compile with old versions of
 503 # MSVC, mainly common code
 504 c_msvc_compat_args = []
 505 cpp_msvc_compat_args = []
 506 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 507   if cc.has_argument(a)
 508     c_msvc_compat_args += a
 509   endif
 510   if cpp.has_argument(a)
 511     cpp_msvc_compat_args += a
 512   endif
 513 endforeach
 514
 515 no_override_init_args = []
 516 foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
 517   if cc.has_argument(a)
 518     no_override_init_args += a
 519   endif
 520 endforeach
 521
 522 if host_machine.cpu_family().startswith('x86')
 523   pre_args += '-DHAVE_SSE41'
 524   with_sse41 = true
 525   sse41_args = ['-msse4.1']
 526
 527   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 528   # that's not guaranteed
 529   if host_machine.cpu_family() == 'x86'
 530     sse41_args += '-mstackrealign'
 531   endif
 532 else
 533   with_sse41 = false
 534   sse41_args = []
 535 endif
 536
 537 # Check for GCC style atomics
 538 if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
 539                name : 'GCC atomic builtins')
 540   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 541 endif
 542 if not cc.links('''#include <stdint.h>
 543                    uint64_t v;
 544                    int main() {
 545                      return __sync_add_and_fetch(&v, (uint64_t)1);
 546                    }''',
 547                 name : 'GCC 64bit atomics')
 548   pre_args += '-DMISSING_64_BIT_ATOMICS'
 549 endif
 550
 551 # TODO: endian
 552 # TODO: powr8
 553 # TODO: shared/static? Is this even worth doing?
 554
 555 # Building x86 assembly code requires running x86 binaries. It is possible for
 556 # x86_64 OSes to run x86 binaries, so don't disable asm in those cases
 557 # TODO: it should be possible to use an exe_wrapper to run the binary during
 558 # the build.
 559 if meson.is_cross_build()
 560   if not (build_machine.cpu_family() == 'x86_64' and host_machine.cpu_family() == 'x86'
 561           and build_machine.system() == host_machine.system())
 562     message('Cross compiling to x86 from non-x86, disabling asm')
 563     with_asm = false
 564   endif
 565 endif
 566
 567 with_asm_arch = ''
 568 if with_asm
 569   # TODO: SPARC and PPC
 570   if host_machine.cpu_family() == 'x86'
 571     if ['linux', 'bsd'].contains(host_machine.system()) # FIXME: hurd?
 572       with_asm_arch = 'x86'
 573       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 574                    '-DUSE_SSE_ASM']
 575     endif
 576   elif host_machine.cpu_family() == 'x86_64'
 577     if host_machine.system() == 'linux'
 578       with_asm_arch = 'x86_64'
 579       pre_args += ['-DUSE_X86_64_ASM']
 580     endif
 581   elif host_machine.cpu_family() == 'arm'
 582     if host_machine.system() == 'linux'
 583       with_asm_arch = 'arm'
 584       pre_args += ['-DUSE_ARM_ASM']
 585     endif
 586   elif host_machine.cpu_family() == 'aarch64'
 587     if host_machine.system() == 'linux'
 588       with_asm_arch = 'aarch64'
 589       pre_args += ['-DUSE_AARCH64_ASM']
 590     endif
 591   endif
 592 endif
 593
 594 # Check for standard headers and functions
 595 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 596   pre_args += '-DMAJOR_IN_SYSMACROS'
 597 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 598   pre_args += '-DMAJOR_IN_MKDEV'
 599 endif
 600
 601 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h']
 602   if cc.has_header(h)
 603     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 604   endif
 605 endforeach
 606
 607 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get']
 608   if cc.has_function(f)
 609     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 610   endif
 611 endforeach
 612
 613 # strtod locale support
 614 if cc.links('''
 615     #define _GNU_SOURCE
 616     #include <stdlib.h>
 617     #include <locale.h>
 618     #ifdef HAVE_XLOCALE_H
 619     #include <xlocale.h>
 620     #endif
 621     int main() {
 622       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 623       const char *s = "1.0";
 624       char *end;
 625       double d = strtod_l(s, end, loc);
 626       float f = strtod_l(s, end, loc);
 627       freelocale(loc);
 628       return 0;
 629     }''',
 630     extra_args : pre_args,
 631     name : 'strtod has locale support')
 632   pre_args += '-DHAVE_STRTOD_L'
 633 endif
 634
 635 # Check for some linker flags
 636 ld_args_bsymbolic = []
 637 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
 638   ld_args_bsymbolic += '-Wl,-Bsymbolic'
 639 endif
 640 ld_args_gc_sections = []
 641 if cc.links('static char unused() { return 5; } int main() { return 0; }',
 642             args : '-Wl,--gc-sections', name : 'gc-sections')
 643   ld_args_gc_sections += '-Wl,--gc-sections'
 644 endif
 645 with_ld_version_script = false
 646 if cc.links('int main() { return 0; }',
 647             args : '-Wl,--version-script=@0@'.format(
 648               join_paths(meson.source_root(), 'build-support/conftest.map')),
 649             name : 'version-script')
 650   with_ld_version_script = true
 651 endif
 652 with_ld_dynamic_list = false
 653 if cc.links('int main() { return 0; }',
 654             args : '-Wl,--dynamic-list=@0@'.format(
 655               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
 656             name : 'dynamic-list')
 657   with_ld_dynamic_list = true
 658 endif
 659
 660 # check for dl support
 661 if cc.has_function('dlopen')
 662   dep_dl = []
 663 else
 664   dep_dl = cc.find_library('dl')
 665 endif
 666 if cc.has_function('dladdr', dependencies : dep_dl)
 667   # This is really only required for megadrivers
 668   pre_args += '-DHAVE_DLADDR'
 669 endif
 670
 671 if cc.has_function('dl_iterate_phdr')
 672   pre_args += '-DHAVE_DL_ITERATE_PHDR'
 673 elif with_intel_vk
 674   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
 675 elif with_dri_i965 and get_option('shader-cache')
 676   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
 677 endif
 678
 679 # Determine whether or not the rt library is needed for time functions
 680 if cc.has_function('clock_gettime')
 681   dep_clock = []
 682 else
 683   dep_clock = cc.find_library('rt')
 684 endif
 685
 686 with_gallium_drisw_kms = false
 687 dep_libdrm = dependency('libdrm', version : '>= 2.4.75',
 688                         required : with_dri2 or with_dri3)
 689 if dep_libdrm.found()
 690   pre_args += '-DHAVE_LIBDRM'
 691   if with_dri_platform == 'drm' and with_dri
 692     with_gallium_drisw_kms = true
 693   endif
 694 endif
 695
 696 # TODO: some of these may be conditional
 697 dep_zlib = dependency('zlib', version : '>= 1.2.3')
 698 dep_thread = dependency('threads')
 699 if dep_thread.found() and host_machine.system() != 'windows'
 700   pre_args += '-DHAVE_PTHREAD'
 701 endif
 702 dep_elf = dependency('libelf', required : false)
 703 if not dep_elf.found() and (with_amd_vk or with_gallium_radeonsi) # TODO: clover, r600
 704   dep_elf = cc.find_library('elf')
 705 endif
 706 dep_expat = dependency('expat')
 707 # this only exists on linux so either this is linux and it will be found, or
 708 # its not linux and and wont
 709 dep_m = cc.find_library('m', required : false)
 710
 711 dep_libdrm_amdgpu = []
 712 dep_libdrm_radeon = []
 713 dep_libdrm_nouveau = []
 714 dep_libdrm_etnaviv = []
 715 dep_libdrm_freedreno = []
 716 if with_amd_vk or with_gallium_radeonsi
 717   dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.88')
 718 endif
 719 if with_gallium_radeonsi or with_dri_r100 or with_dri_r200
 720   dep_libdrm_radeon = dependency('libdrm_radeon', version : '>= 2.4.71')
 721 endif
 722 if with_gallium_nouveau or with_dri_nouveau
 723   dep_libdrm_nouveau = dependency('libdrm_nouveau', version : '>= 2.4.66')
 724 endif
 725 if with_gallium_etnaviv
 726   dep_libdrm_etnaviv = dependency('libdrm_etnaviv', version : '>= 2.4.82')
 727 endif
 728 if with_gallium_freedreno
 729   dep_libdrm_freedreno = dependency('libdrm_freedreno', version : '>= 2.4.74')
 730 endif
 731
 732 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
 733 if with_amd_vk or with_gallium_radeonsi
 734   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
 735 endif
 736
 737 _llvm = get_option('llvm')
 738 if _llvm == 'auto'
 739   dep_llvm = dependency(
 740     'llvm', version : '>= 3.9.0', modules : llvm_modules,
 741     required : with_amd_vk or with_gallium_radeonsi,
 742   )
 743   with_llvm = dep_llvm.found()
 744 elif _llvm == 'true'
 745   dep_llvm = dependency('llvm', version : '>= 3.9.0', modules : llvm_modules)
 746   with_llvm = true
 747 else
 748   dep_llvm = []
 749   with_llvm = false
 750 endif
 751 if with_llvm
 752   _llvm_version = dep_llvm.version().split('.')
 753   # Development versions of LLVM have an 'svn' suffix, we don't want that for
 754   # our version checks.
 755   _llvm_patch = _llvm_version[2]
 756   if _llvm_patch.endswith('svn')
 757     _llvm_patch = _llvm_patch.split('s')[0]
 758   endif
 759   pre_args += [
 760     '-DHAVE_LLVM=0x0@0@@1@@2@'.format(_llvm_version[0], _llvm_version[1], _llvm_patch),
 761     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
 762   ]
 763 elif with_amd_vk or with_gallium_radeonsi
 764   error('The following drivers requires LLVM: Radv, RadeonSI. One of these is enabled, but LLVM is disabled.')
 765 endif
 766
 767 dep_glvnd = []
 768 if with_glvnd
 769   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
 770   pre_args += '-DUSE_LIBGLVND=1'
 771 endif
 772
 773 if with_valgrind != 'false'
 774   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
 775   if dep_valgrind.found()
 776     pre_args += '-DHAVE_VALGRIND'
 777   endif
 778 else
 779   dep_valgrind = []
 780 endif
 781
 782 # pthread stubs. Lets not and say we didn't
 783
 784 prog_bison = find_program('bison', required : with_any_opengl)
 785 prog_flex = find_program('flex', required : with_any_opengl)
 786
 787 dep_selinux = []
 788 if get_option('selinux')
 789   dep_selinux = dependency('libselinux')
 790   pre_args += '-DMESA_SELINUX'
 791 endif
 792
 793 # TODO: llvm-prefix and llvm-shared-libs
 794
 795 if with_libunwind != 'false'
 796   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
 797   if dep_unwind.found()
 798     pre_args += '-DHAVE_LIBUNWIND'
 799   endif
 800 else
 801   dep_unwind = []
 802 endif
 803
 804 # TODO: gallium-hud
 805
 806 if with_osmesa != 'none'
 807   if with_osmesa == 'classic' and not with_dri_swrast
 808     error('OSMesa classic requires dri (classic) swrast.')
 809   endif
 810   if with_osmesa == 'gallium' and not with_gallium_softpipe
 811     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
 812   endif
 813   osmesa_lib_name = 'OSMesa'
 814   osmesa_bits = get_option('osmesa-bits')
 815   if osmesa_bits != '8'
 816     if with_dri or with_glx != 'disabled'
 817       error('OSMesa bits must be 8 if building glx or dir based drivers')
 818     endif
 819     osmesa_lib_name = osmesa_lib_name + osmesa_bits
 820     pre_args += [
 821       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
 822     ]
 823   endif
 824 endif
 825
 826 # TODO: symbol mangling
 827
 828 if with_platform_wayland
 829   prog_wl_scanner = find_program('wayland-scanner')
 830   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
 831   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
 832   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
 833   wayland_dmabuf_xml = join_paths(
 834     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
 835     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
 836   )
 837   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
 838 else
 839   prog_wl_scanner = []
 840   dep_wl_protocols = []
 841   dep_wayland_client = []
 842   dep_wayland_server = []
 843   wayland_dmabuf_xml = ''
 844 endif
 845
 846 dep_x11 = []
 847 dep_xext = []
 848 dep_xdamage = []
 849 dep_xfixes = []
 850 dep_x11_xcb = []
 851 dep_xcb = []
 852 dep_xcb_glx = []
 853 dep_xcb_dri2 = []
 854 dep_xcb_dri3 = []
 855 dep_dri2proto = []
 856 dep_glproto = []
 857 dep_xxf86vm = []
 858 dep_xcb_dri3 = []
 859 dep_xcb_present = []
 860 dep_xcb_sync = []
 861 dep_xcb_xfixes = []
 862 dep_xshmfence = []
 863 if with_platform_x11
 864   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 865     dep_x11 = dependency('x11')
 866     dep_xext = dependency('xext')
 867     dep_xcb = dependency('xcb')
 868   elif with_glx == 'dri' and with_dri_platform == 'drm'
 869     dep_x11 = dependency('x11')
 870     dep_xext = dependency('xext')
 871     dep_xdamage = dependency('xdamage', version : '>= 1.1')
 872     dep_xfixes = dependency('xfixes')
 873     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
 874     dep_xxf86vm = dependency('xxf86vm', required : false)
 875   endif
 876   if with_any_vk or (with_glx == 'dri' and with_dri_platform == 'drm')
 877     dep_xcb = dependency('xcb')
 878     dep_x11_xcb = dependency('x11-xcb')
 879     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
 880
 881     if with_dri3
 882       pre_args += '-DHAVE_DRI3'
 883       dep_xcb_dri3 = dependency('xcb-dri3')
 884       dep_xcb_present = dependency('xcb-present')
 885       dep_xcb_sync = dependency('xcb-sync')
 886       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
 887     endif
 888   endif
 889   if with_glx == 'dri'
 890     dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
 891     dep_glproto = dependency('glproto', version : '>= 1.4.14')
 892   endif
 893   if with_egl
 894     dep_xcb_xfixes = dependency('xcb-xfixes')
 895   endif
 896 endif
 897
 898 # TODO: nine
 899
 900 # TODO: clover
 901
 902 # TODO: gallium tests
 903
 904 # TODO: various libdirs
 905
 906 # TODO: swr
 907
 908 # TODO: gallium driver dirs
 909
 910 # FIXME: this is a workaround for #2326
 911 prog_touch = find_program('touch')
 912 dummy_cpp = custom_target(
 913   'dummy_cpp',
 914   output : 'dummy.cpp',
 915   command : [prog_touch, '@OUTPUT@'],
 916 )
 917
 918 foreach a : pre_args
 919   add_project_arguments(a, language : ['c', 'cpp'])
 920 endforeach
 921 foreach a : c_args
 922   add_project_arguments(a, language : ['c'])
 923 endforeach
 924 foreach a : cpp_args
 925   add_project_arguments(a, language : ['cpp'])
 926 endforeach
 927
 928 inc_include = include_directories('include')
 929
 930 gl_priv_reqs = [
 931   'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
 932   'xcb-glx >= 1.8.1', 'libdrm >= 2.4.75',
 933 ]
 934 if dep_xxf86vm != [] and dep_xxf86vm.found()
 935   gl_priv_reqs += 'xxf86vm'
 936 endif
 937 if with_dri_platform == 'drm'
 938   gl_priv_reqs += 'xcb-dri2 >= 1.8'
 939 endif
 940
 941 gl_priv_libs = []
 942 if dep_thread.found()
 943   gl_priv_libs += ['-lpthread', '-pthread']
 944 endif
 945 if dep_m.found()
 946   gl_priv_libs += '-lm'
 947 endif
 948 if dep_dl != [] and dep_dl.found()
 949   gl_priv_libs += '-ldl'
 950 endif
 951
 952 pkg = import('pkgconfig')
 953
 954 subdir('include')
 955 subdir('bin')
 956 subdir('src')