meson.build

   1 # Copyright © 2017-2020 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', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.52',
  29   default_options : ['buildtype=debugoptimized', 'b_ndebug=if-release', 'c_std=c99', 'cpp_std=c++14']
  30 )
  31
  32 cc = meson.get_compiler('c')
  33 cpp = meson.get_compiler('cpp')
  34
  35 null_dep = dependency('', required : false)
  36
  37 if get_option('layout') != 'mirror'
  38   error('`mirror` is the only build directory layout supported')
  39 endif
  40
  41 # Arguments for the preprocessor, put these in a separate array from the C and
  42 # C++ (cpp in meson terminology) arguments since they need to be added to the
  43 # default arguments for both C and C++.
  44 pre_args = [
  45   '-D__STDC_CONSTANT_MACROS',
  46   '-D__STDC_FORMAT_MACROS',
  47   '-D__STDC_LIMIT_MACROS',
  48   '-DPACKAGE_VERSION="@0@"'.format(meson.project_version()),
  49   '-DPACKAGE_BUGREPORT="https://gitlab.freedesktop.org/mesa/mesa/-/issues"',
  50 ]
  51
  52 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  53 with_tests = get_option('build-tests')
  54 with_glx_read_only_text = get_option('glx-read-only-text')
  55 with_glx_direct = get_option('glx-direct')
  56 with_osmesa = get_option('osmesa')
  57 with_swr_arches = get_option('swr-arches')
  58 with_vulkan_overlay_layer = get_option('vulkan-overlay-layer')
  59 with_tools = get_option('tools')
  60 if with_tools.contains('all')
  61   with_tools = [
  62     'drm-shim',
  63     'etnaviv',
  64     'freedreno',
  65     'glsl',
  66     'intel',
  67     'intel-ui',
  68     'lima',
  69     'nir',
  70     'nouveau',
  71     'xvmc',
  72   ]
  73 endif
  74
  75 with_intel_tools = with_tools.contains('intel') or with_tools.contains('intel-ui')
  76 with_imgui = with_intel_tools or with_vulkan_overlay_layer
  77
  78 dri_drivers_path = get_option('dri-drivers-path')
  79 if dri_drivers_path == ''
  80   dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri')
  81 endif
  82 dri_search_path = get_option('dri-search-path')
  83 if dri_search_path == ''
  84   dri_search_path = dri_drivers_path
  85 endif
  86
  87 with_gles1 = get_option('gles1')
  88 if with_gles1 == 'true'
  89   with_gles1 = 'enabled'
  90   warning('gles1 option "true" deprecated, please use "enabled" instead.')
  91 elif with_gles1 == 'false'
  92   with_gles1 = 'disabled'
  93   warning('gles1 option "false" deprecated, please use "disabled" instead.')
  94 endif
  95 with_gles2 = get_option('gles2')
  96 if with_gles2 == 'true'
  97   with_gles2 = 'enabled'
  98   warning('gles2 option "true" deprecated, please use "enabled" instead.')
  99 elif with_gles2 == 'false'
 100   with_gles2 = 'disabled'
 101   warning('gles2 option "false" deprecated, please use "disabled" instead.')
 102 endif
 103 if host_machine.system() == 'windows'
 104   if with_gles1 == 'auto'
 105     with_gles1 = 'disabled'
 106   endif
 107   if with_gles2 == 'auto'
 108     with_gles2 = 'disabled'
 109   endif
 110 endif
 111 with_opengl = get_option('opengl')
 112
 113 # Default shared glapi off for windows, on elsewhere.
 114 _sg = get_option('shared-glapi')
 115 if _sg == 'true'
 116   _sg = 'enabled'
 117   warning('shared-glapi option "true" deprecated, please use "enabled" instead.')
 118 elif _sg == 'false'
 119   _sg = 'disabled'
 120   warning('shared-glapi option "false" deprecated, please use "disabled" instead.')
 121 endif
 122 if _sg == 'auto'
 123   with_shared_glapi = host_machine.system() != 'windows'
 124 else
 125   with_shared_glapi = _sg == 'enabled'
 126 endif
 127
 128 # shared-glapi is required if at least two OpenGL APIs are being built
 129 if not with_shared_glapi
 130   if ((with_gles1 == 'enabled' and with_gles2 == 'enabled') or
 131       (with_gles1 == 'enabled' and with_opengl) or
 132       (with_gles2 == 'enabled' and with_opengl))
 133     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
 134   endif
 135   with_gles1 = 'disabled'
 136   with_gles2 = 'disabled'
 137 endif
 138
 139 # We require OpenGL for OpenGL ES
 140 if not with_opengl
 141   if (with_gles1 == 'enabled' or with_gles2 == 'enabled') and not with_opengl
 142     error('building OpenGL ES without OpenGL is not supported.')
 143   endif
 144   with_gles1 = 'disabled'
 145   with_gles2 = 'disabled'
 146 endif
 147
 148 with_gles1 = with_gles1 != 'disabled'
 149 with_gles2 = with_gles2 != 'disabled'
 150 with_any_opengl = with_opengl or with_gles1 or with_gles2
 151 # Only build shared_glapi if at least one OpenGL API is enabled
 152 with_shared_glapi = with_shared_glapi and with_any_opengl
 153
 154 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'gnu/kfreebsd', 'dragonfly', 'linux', 'sunos'].contains(host_machine.system())
 155
 156 dri_drivers = get_option('dri-drivers')
 157 if dri_drivers.contains('auto')
 158   if system_has_kms_drm
 159     # TODO: PPC, Sparc
 160     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 161       dri_drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 162     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 163       dri_drivers = []
 164     else
 165       error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 166             host_machine.cpu_family()))
 167     endif
 168   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 169     # only swrast would make sense here, but gallium swrast is a much better default
 170     dri_drivers = []
 171   else
 172     error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 173           host_machine.system()))
 174   endif
 175 endif
 176
 177 with_dri_i915 = dri_drivers.contains('i915')
 178 with_dri_i965 = dri_drivers.contains('i965')
 179 with_dri_r100 = dri_drivers.contains('r100')
 180 with_dri_r200 = dri_drivers.contains('r200')
 181 with_dri_nouveau = dri_drivers.contains('nouveau')
 182 with_dri_swrast = dri_drivers.contains('swrast')
 183
 184 with_dri = dri_drivers.length() != 0
 185
 186 gallium_drivers = get_option('gallium-drivers')
 187 if gallium_drivers.contains('auto')
 188   if system_has_kms_drm
 189     # TODO: PPC, Sparc
 190     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 191       gallium_drivers = [
 192         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast',
 193         'iris'
 194       ]
 195     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 196       gallium_drivers = [
 197         'kmsro', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
 198         'tegra', 'virgl', 'lima', 'panfrost', 'swrast'
 199       ]
 200     else
 201       error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 202             host_machine.cpu_family()))
 203     endif
 204   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 205     gallium_drivers = ['swrast']
 206   else
 207     error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 208           host_machine.system()))
 209   endif
 210 endif
 211 with_gallium_kmsro = gallium_drivers.contains('kmsro')
 212 with_gallium_radeonsi = gallium_drivers.contains('radeonsi')
 213 with_gallium_r300 = gallium_drivers.contains('r300')
 214 with_gallium_r600 = gallium_drivers.contains('r600')
 215 with_gallium_nouveau = gallium_drivers.contains('nouveau')
 216 with_gallium_freedreno = gallium_drivers.contains('freedreno')
 217 with_gallium_softpipe = gallium_drivers.contains('swrast')
 218 with_gallium_vc4 = gallium_drivers.contains('vc4')
 219 with_gallium_v3d = gallium_drivers.contains('v3d')
 220 with_gallium_panfrost = gallium_drivers.contains('panfrost')
 221 with_gallium_etnaviv = gallium_drivers.contains('etnaviv')
 222 with_gallium_tegra = gallium_drivers.contains('tegra')
 223 with_gallium_iris = gallium_drivers.contains('iris')
 224 with_gallium_i915 = gallium_drivers.contains('i915')
 225 with_gallium_svga = gallium_drivers.contains('svga')
 226 with_gallium_virgl = gallium_drivers.contains('virgl')
 227 with_gallium_swr = gallium_drivers.contains('swr')
 228 with_gallium_lima = gallium_drivers.contains('lima')
 229 with_gallium_zink = gallium_drivers.contains('zink')
 230
 231 with_gallium = gallium_drivers.length() != 0
 232
 233 if with_gallium and system_has_kms_drm
 234   _glx = get_option('glx')
 235   _egl = get_option('egl')
 236   if _glx == 'dri' or _egl == 'enabled' or (_glx == 'disabled' and _egl != 'disabled')
 237     with_dri = true
 238   endif
 239 endif
 240
 241 _vulkan_drivers = get_option('vulkan-drivers')
 242 if _vulkan_drivers.contains('auto')
 243   if system_has_kms_drm
 244     if host_machine.cpu_family().startswith('x86')
 245       _vulkan_drivers = ['amd', 'intel']
 246     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 247       _vulkan_drivers = []
 248     else
 249       error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 250             host_machine.cpu_family()))
 251     endif
 252   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 253     # No vulkan driver supports windows or macOS currently
 254     _vulkan_drivers = []
 255   else
 256     error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 257           host_machine.system()))
 258   endif
 259 endif
 260
 261 with_intel_vk = _vulkan_drivers.contains('intel')
 262 with_amd_vk = _vulkan_drivers.contains('amd')
 263 with_freedreno_vk = _vulkan_drivers.contains('freedreno')
 264 with_any_vk = _vulkan_drivers.length() != 0
 265
 266 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 267   error('Only one swrast provider can be built')
 268 endif
 269 if with_dri_i915 and with_gallium_i915
 270   error('Only one i915 provider can be built')
 271 endif
 272 if with_gallium_kmsro and not (with_gallium_v3d or with_gallium_vc4 or with_gallium_etnaviv or with_gallium_freedreno or with_gallium_panfrost or with_gallium_lima)
 273   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 274 endif
 275 if with_gallium_tegra and not with_gallium_nouveau
 276   error('tegra driver requires nouveau driver')
 277 endif
 278
 279 if host_machine.system() == 'darwin'
 280   with_dri_platform = 'apple'
 281   pre_args += '-DBUILDING_MESA'
 282 elif ['windows', 'cygwin'].contains(host_machine.system())
 283   with_dri_platform = 'windows'
 284 elif system_has_kms_drm
 285   with_dri_platform = 'drm'
 286 else
 287   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 288   # assert here that one of those cases has been met.
 289   # FIXME: illumos ends up here as well
 290   with_dri_platform = 'none'
 291 endif
 292
 293 _platforms = get_option('platforms')
 294 if _platforms.contains('auto')
 295   if system_has_kms_drm
 296     _platforms = ['x11', 'wayland', 'drm']
 297   elif ['darwin', 'cygwin'].contains(host_machine.system())
 298     _platforms = ['x11']
 299   elif ['haiku'].contains(host_machine.system())
 300     _platforms = ['haiku']
 301   elif host_machine.system() == 'windows'
 302     _platforms = ['windows']
 303   else
 304     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 305           host_machine.system()))
 306   endif
 307 endif
 308
 309 with_platform_android = _platforms.contains('android')
 310 with_platform_x11 = _platforms.contains('x11')
 311 with_platform_wayland = _platforms.contains('wayland')
 312 with_platform_drm = _platforms.contains('drm')
 313 with_platform_haiku = _platforms.contains('haiku')
 314 with_platform_windows = _platforms.contains('windows')
 315
 316 if _platforms.contains('surfaceless')
 317   warning('Platform `surfaceless` is now always selected; setting this option will be an error in Mesa 20.3')
 318 endif
 319
 320 if _platforms.length() != 0
 321   egl_native_platform = _platforms[0]
 322 else
 323   egl_native_platform = 'surfaceless'
 324 endif
 325
 326 _xlib_lease = get_option('xlib-lease')
 327 if _xlib_lease == 'true'
 328   _xlib_lease = 'enabled'
 329   warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
 330 elif _xlib_lease == 'false'
 331   _xlib_lease = 'disabled'
 332   warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
 333 endif
 334 if _xlib_lease == 'auto'
 335   with_xlib_lease = with_platform_x11 and with_platform_drm
 336 else
 337   with_xlib_lease = _xlib_lease == 'enabled'
 338 endif
 339
 340 with_glx = get_option('glx')
 341 if with_glx == 'auto'
 342   if with_dri
 343     with_glx = 'dri'
 344   elif with_platform_haiku
 345     with_glx = 'disabled'
 346   elif host_machine.system() == 'windows'
 347     with_glx = 'disabled'
 348   elif with_gallium
 349     # Even when building just gallium drivers the user probably wants dri
 350     with_glx = 'dri'
 351   elif with_platform_x11 and with_any_opengl and not with_any_vk
 352     # The automatic behavior should not be to turn on xlib based glx when
 353     # building only vulkan drivers
 354     with_glx = 'xlib'
 355   else
 356     with_glx = 'disabled'
 357   endif
 358 endif
 359 if with_glx == 'dri'
 360    if with_gallium
 361       with_dri = true
 362    endif
 363 endif
 364
 365 if not (with_dri or with_gallium or with_glx != 'disabled')
 366   with_gles1 = false
 367   with_gles2 = false
 368   with_opengl = false
 369   with_any_opengl = false
 370   with_shared_glapi = false
 371 endif
 372
 373 _gbm = get_option('gbm')
 374 if _gbm == 'true'
 375   _gbm = 'enabled'
 376   warning('gbm option "true" deprecated, please use "enabled" instead.')
 377 elif _gbm == 'false'
 378   _gbm = 'disabled'
 379   warning('gbm option "false" deprecated, please use "disabled" instead.')
 380 endif
 381 if _gbm == 'auto'
 382   with_gbm = system_has_kms_drm and with_dri
 383 else
 384   with_gbm = _gbm == 'enabled'
 385 endif
 386 if with_gbm and not system_has_kms_drm
 387   error('GBM only supports DRM/KMS platforms')
 388 endif
 389
 390 _egl = get_option('egl')
 391 if _egl == 'true'
 392   _egl = 'enabled'
 393   warning('egl option "true" deprecated, please use "enabled" instead.')
 394 elif _egl == 'false'
 395   _egl = 'disabled'
 396   warning('egl option "false" deprecated, please use "disabled" instead.')
 397 endif
 398 if _egl == 'auto'
 399   with_egl = (
 400     not ['darwin', 'windows'].contains(host_machine.system()) and
 401     with_dri and with_shared_glapi
 402   )
 403 elif _egl == 'enabled'
 404   if not with_dri
 405     error('EGL requires dri')
 406   elif not with_shared_glapi
 407     error('EGL requires shared-glapi')
 408   elif not ['disabled', 'dri'].contains(with_glx)
 409     error('EGL requires dri, but a GLX is being built without dri')
 410   elif ['darwin', 'windows'].contains(host_machine.system())
 411     error('EGL is not available on Windows or MacOS')
 412   endif
 413   with_egl = true
 414 else
 415   with_egl = false
 416 endif
 417
 418 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 419 if not ['windows', 'freebsd'].contains(host_machine.system()) and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 420   pre_args += '-DUSE_ELF_TLS'
 421 endif
 422
 423 if with_glx != 'disabled'
 424   if not (with_platform_x11 and with_any_opengl)
 425     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 426   elif with_glx == 'gallium-xlib'
 427     if not with_gallium
 428       error('Gallium-xlib based GLX requires at least one gallium driver')
 429     elif not with_gallium_softpipe
 430       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 431     elif with_dri
 432       error('gallium-xlib conflicts with any dri driver')
 433     endif
 434   elif with_glx == 'xlib'
 435     if with_dri
 436       error('xlib conflicts with any dri driver')
 437     endif
 438   elif with_glx == 'dri'
 439     if not with_shared_glapi
 440       error('dri based GLX requires shared-glapi')
 441     endif
 442   endif
 443 endif
 444
 445 with_glvnd = get_option('glvnd')
 446 if with_glvnd
 447   if with_platform_windows
 448     error('glvnd cannot be used on Windows')
 449   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 450     error('Cannot build glvnd support for GLX that is not DRI based.')
 451   elif with_glx == 'disabled' and not with_egl
 452     error('glvnd requires DRI based GLX and/or EGL')
 453   endif
 454   if get_option('egl-lib-suffix') != ''
 455     error('''EGL lib suffix can't be used with libglvnd''')
 456   endif
 457 endif
 458
 459 if with_vulkan_icd_dir == ''
 460   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 461 endif
 462
 463 # GNU/Hurd includes egl_dri2, without drm.
 464 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 465   host_machine.system() == 'gnu')
 466 _dri3 = get_option('dri3')
 467 if _dri3 == 'true'
 468   _dri3 = 'enabled'
 469   warning('dri3 option "true" deprecated, please use "enabled" instead.')
 470 elif _dri3 == 'false'
 471   _dri3 = 'disabled'
 472   warning('dri3 option "false" deprecated, please use "disabled" instead.')
 473 endif
 474 if _dri3 == 'auto'
 475   with_dri3 = system_has_kms_drm and with_dri2
 476 else
 477   with_dri3 = _dri3 == 'enabled'
 478 endif
 479
 480 if with_any_vk and (with_platform_x11 and not with_dri3)
 481   error('Vulkan drivers require dri3 for X11 support')
 482 endif
 483 if with_dri
 484   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 485     error('building dri drivers require at least one windowing system or classic osmesa')
 486   endif
 487 endif
 488
 489 _vdpau = get_option('gallium-vdpau')
 490 if _vdpau == 'true'
 491   _vdpau = 'enabled'
 492   warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
 493 elif _vdpau == 'false'
 494   _vdpau = 'disabled'
 495   warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
 496 endif
 497 if not system_has_kms_drm
 498   if _vdpau == 'enabled'
 499     error('VDPAU state tracker can only be build on unix-like OSes.')
 500   else
 501     _vdpau = 'disabled'
 502   endif
 503 elif not with_platform_x11
 504   if _vdpau == 'enabled'
 505     error('VDPAU state tracker requires X11 support.')
 506   else
 507     _vdpau = 'disabled'
 508   endif
 509 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 510           with_gallium_nouveau)
 511   if _vdpau == 'enabled'
 512     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 513   else
 514     _vdpau = 'disabled'
 515   endif
 516 endif
 517 dep_vdpau = null_dep
 518 with_gallium_vdpau = false
 519 if _vdpau != 'disabled'
 520   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
 521   if dep_vdpau.found()
 522     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 523     with_gallium_vdpau = true
 524   endif
 525 endif
 526
 527 if with_gallium_vdpau
 528   pre_args += '-DHAVE_ST_VDPAU'
 529 endif
 530 vdpau_drivers_path = get_option('vdpau-libs-path')
 531 if vdpau_drivers_path == ''
 532   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 533 endif
 534
 535 if with_gallium_zink
 536   dep_vulkan = dependency('vulkan')
 537 endif
 538
 539 _xvmc = get_option('gallium-xvmc')
 540 if _xvmc == 'true'
 541   _xvmc = 'enabled'
 542   warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
 543 elif _xvmc == 'false'
 544   _xvmc = 'disabled'
 545   warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
 546 endif
 547 if not system_has_kms_drm
 548   if _xvmc == 'enabled'
 549     error('XVMC state tracker can only be build on unix-like OSes.')
 550   else
 551     _xvmc = 'disabled'
 552   endif
 553 elif not with_platform_x11
 554   if _xvmc == 'enabled'
 555     error('XVMC state tracker requires X11 support.')
 556   else
 557     _xvmc = 'disabled'
 558   endif
 559 elif not (with_gallium_r600 or with_gallium_nouveau)
 560   if _xvmc == 'enabled'
 561     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 562   else
 563     _xvmc = 'disabled'
 564   endif
 565 endif
 566 dep_xvmc = null_dep
 567 dep_xv = null_dep
 568 with_gallium_xvmc = false
 569 if _xvmc != 'disabled'
 570   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
 571   dep_xv = dependency('xv', required : _xvmc == 'enabled')
 572   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 573 endif
 574
 575 xvmc_drivers_path = get_option('xvmc-libs-path')
 576 if xvmc_drivers_path == ''
 577   xvmc_drivers_path = get_option('libdir')
 578 endif
 579
 580 _omx = get_option('gallium-omx')
 581 if not system_has_kms_drm
 582   if ['auto', 'disabled'].contains(_omx)
 583     _omx = 'disabled'
 584   else
 585     error('OMX state tracker can only be built on unix-like OSes.')
 586   endif
 587 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 588   if ['auto', 'disabled'].contains(_omx)
 589     _omx = 'disabled'
 590   else
 591     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 592   endif
 593 endif
 594 with_gallium_omx = _omx
 595 dep_omx = null_dep
 596 dep_omx_other = []
 597 if ['auto', 'bellagio'].contains(_omx)
 598   dep_omx = dependency(
 599     'libomxil-bellagio', required : _omx == 'bellagio'
 600   )
 601   if dep_omx.found()
 602     with_gallium_omx = 'bellagio'
 603   endif
 604 endif
 605 if ['auto', 'tizonia'].contains(_omx)
 606   if with_dri and with_egl
 607     dep_omx = dependency(
 608       'libtizonia', version : '>= 0.10.0',
 609       required : _omx == 'tizonia',
 610     )
 611     dep_omx_other = [
 612       dependency('libtizplatform', required : _omx == 'tizonia'),
 613       dependency('tizilheaders', required : _omx == 'tizonia'),
 614     ]
 615     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 616       with_gallium_omx = 'tizonia'
 617     endif
 618   elif _omx == 'tizonia'
 619     error('OMX-Tizonia state tracker requires dri and egl')
 620   endif
 621 endif
 622 if _omx == 'auto'
 623   with_gallium_omx = 'disabled'
 624 else
 625   with_gallium_omx = _omx
 626 endif
 627
 628 pre_args += [
 629   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 630   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 631 ]
 632
 633
 634 omx_drivers_path = get_option('omx-libs-path')
 635
 636 if with_gallium_omx != 'disabled'
 637   # Figure out where to put the omx driver.
 638   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 639   # argument to meson's get_pkgconfig_variable method.
 640   if omx_drivers_path == ''
 641     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 642     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 643     if _omx_libdir == get_option('libdir')
 644       omx_drivers_path = _omx_drivers_dir
 645     else
 646       _omx_base_dir = []
 647       # This will fail on windows. Does OMX run on windows?
 648       _omx_libdir = _omx_libdir.split('/')
 649       _omx_drivers_dir = _omx_drivers_dir.split('/')
 650       foreach o : _omx_drivers_dir
 651         if not _omx_libdir.contains(o)
 652           _omx_base_dir += o
 653         endif
 654       endforeach
 655       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 656     endif
 657   endif
 658 endif
 659
 660 _va = get_option('gallium-va')
 661 if _va == 'true'
 662   _va = 'enabled'
 663   warning('gallium-va option "true" deprecated, please use "enabled" instead.')
 664 elif _va == 'false'
 665   _va = 'disabled'
 666   warning('gallium-va option "false" deprecated, please use "disabled" instead.')
 667 endif
 668 if not system_has_kms_drm
 669   if _va == 'enabled'
 670     error('VA state tracker can only be built on unix-like OSes.')
 671   else
 672     _va = 'disabled'
 673   endif
 674 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 675   if _va == 'enabled'
 676     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 677   else
 678     _va = 'disabled'
 679   endif
 680 endif
 681 with_gallium_va = false
 682 dep_va = null_dep
 683 if _va != 'disabled'
 684   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'enabled')
 685   if dep_va.found()
 686     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 687     with_gallium_va = true
 688   endif
 689 endif
 690
 691 va_drivers_path = get_option('va-libs-path')
 692 if va_drivers_path == ''
 693   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 694 endif
 695
 696 _xa = get_option('gallium-xa')
 697 if _xa == 'true'
 698   _xa = 'enabled'
 699   warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
 700 elif _xa == 'false'
 701   _xa = 'disabled'
 702   warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
 703 endif
 704 if not system_has_kms_drm
 705   if _xa == 'enabled'
 706     error('XA state tracker can only be built on unix-like OSes.')
 707   else
 708     _xa = 'disabled'
 709   endif
 710 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 711           or with_gallium_svga)
 712   if _xa == 'enabled'
 713     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 714   else
 715     _xa = 'disabled'
 716   endif
 717 endif
 718 with_gallium_xa = _xa != 'disabled'
 719
 720 d3d_drivers_path = get_option('d3d-drivers-path')
 721 if d3d_drivers_path == ''
 722   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 723 endif
 724
 725 with_gallium_st_nine =  get_option('gallium-nine')
 726 if with_gallium_st_nine
 727   if not with_gallium_softpipe
 728     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 729   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 730             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 731             or with_gallium_iris)
 732     error('The nine state tracker requires at least one non-swrast gallium driver.')
 733   endif
 734   if not with_dri3
 735     error('Using nine with wine requires dri3')
 736   endif
 737 endif
 738 _power8 = get_option('power8')
 739 if _power8 == 'true'
 740   _power8 = 'enabled'
 741   warning('power8 option "true" deprecated, please use "enabled" instead.')
 742 elif _power8 == 'disabled'
 743   _power8 = 'disabled'
 744   warning('power8 option "false" deprecated, please use "disabled" instead.')
 745 endif
 746 if _power8 != 'disabled'
 747   # on old versions of meson the cpu family would return as ppc64le on little
 748   # endian power8, this was changed in 0.48 such that the family would always
 749   # be ppc64 regardless of endianness, and then the machine.endian() value
 750   # should be checked. Since we support versions < 0.48 we need to use
 751   # startswith.
 752   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 753     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 754       error('Altivec is not supported with gcc version < 4.8.')
 755     endif
 756     if cc.compiles('''
 757         #include <altivec.h>
 758         int main() {
 759           vector unsigned char r;
 760           vector unsigned int v = vec_splat_u32 (1);
 761           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 762           return 0;
 763         }''',
 764         args : '-mpower8-vector',
 765         name : 'POWER8 intrinsics')
 766       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 767     elif get_option('power8') == 'enabled'
 768       error('POWER8 intrinsic support required but not found.')
 769     endif
 770   endif
 771 endif
 772
 773 _opencl = get_option('gallium-opencl')
 774 if _opencl != 'disabled'
 775   if not with_gallium
 776     error('OpenCL Clover implementation requires at least one gallium driver.')
 777   endif
 778
 779   dep_clc = dependency('libclc')
 780   with_gallium_opencl = true
 781   with_opencl_icd = _opencl == 'icd'
 782
 783   with_opencl_spirv = get_option('opencl-spirv')
 784   if with_opencl_spirv
 785     dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
 786     # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
 787     dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : '>= 0.2.1')
 788   else
 789     dep_spirv_tools = null_dep
 790     dep_llvmspirvlib = null_dep
 791   endif
 792 else
 793   dep_clc = null_dep
 794   dep_spirv_tools = null_dep
 795   dep_llvmspirvlib = null_dep
 796   with_gallium_opencl = false
 797   with_opencl_icd = false
 798   with_opencl_spirv = false
 799 endif
 800
 801 gl_pkgconfig_c_flags = []
 802 if with_platform_x11
 803   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 804     pre_args += '-DHAVE_X11_PLATFORM'
 805   endif
 806   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 807     pre_args += '-DUSE_XSHM'
 808   else
 809     pre_args += '-DGLX_INDIRECT_RENDERING'
 810     if with_glx_direct
 811       pre_args += '-DGLX_DIRECT_RENDERING'
 812     endif
 813     if with_dri_platform == 'drm'
 814       pre_args += '-DGLX_USE_DRM'
 815     elif with_dri_platform == 'apple'
 816       pre_args += '-DGLX_USE_APPLEGL'
 817     elif with_dri_platform == 'windows'
 818       pre_args += '-DGLX_USE_WINDOWSGL'
 819     endif
 820   endif
 821 else
 822   pre_args += '-DEGL_NO_X11'
 823   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 824 endif
 825 if with_platform_drm
 826   if with_egl and not with_gbm
 827     error('EGL drm platform requires gbm')
 828   endif
 829   pre_args += '-DHAVE_DRM_PLATFORM'
 830 endif
 831 if with_platform_android
 832   dep_android = [
 833     dependency('cutils'),
 834     dependency('hardware'),
 835     dependency('sync'),
 836   ]
 837   if with_gallium
 838     dep_android += dependency('backtrace')
 839   endif
 840   if get_option('platform-sdk-version') >= 26
 841     dep_android += dependency('nativewindow')
 842   endif
 843   pre_args += '-DHAVE_ANDROID_PLATFORM'
 844 endif
 845 if with_platform_haiku
 846   pre_args += '-DHAVE_HAIKU_PLATFORM'
 847 endif
 848
 849 prog_python = import('python').find_installation('python3')
 850 has_mako = run_command(
 851   prog_python, '-c',
 852   '''
 853 from distutils.version import StrictVersion
 854 import mako
 855 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 856   ''')
 857 if has_mako.returncode() != 0
 858   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 859 endif
 860
 861 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 862   error('When using GCC, version 4.4.6 or later is required.')
 863 endif
 864
 865 # Support systems without ETIME (e.g. FreeBSD)
 866 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 867   pre_args += '-DETIME=ETIMEDOUT'
 868 endif
 869
 870 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 871 if get_option('buildtype') == 'debug'
 872   pre_args += '-DDEBUG'
 873 endif
 874
 875 with_shader_cache = false
 876 _shader_cache = get_option('shader-cache')
 877 if _shader_cache == 'true'
 878   _shader_cache = 'enabled'
 879   warning('shader_cache option "true" deprecated, please use "enabled" instead.')
 880 elif _shader_cache == 'false'
 881   _shader_cache = 'disabled'
 882   warning('shader_cache option "false" deprecated, please use "disabled" instead.')
 883 endif
 884 if _shader_cache != 'disabled'
 885   if host_machine.system() == 'windows'
 886     if _shader_cache == 'enabled'
 887       error('Shader Cache does not currently work on Windows')
 888     endif
 889   else
 890     pre_args += '-DENABLE_SHADER_CACHE'
 891     with_shader_cache = true
 892   endif
 893 endif
 894
 895 # Check for GCC style builtins
 896 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 897              'ffsll', 'popcount', 'popcountll', 'unreachable']
 898   if cc.has_function(b)
 899     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 900   endif
 901 endforeach
 902
 903 # check for GCC __attribute__
 904 _attributes = [
 905   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
 906   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
 907 ]
 908 foreach a : cc.get_supported_function_attributes(_attributes)
 909   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 910 endforeach
 911 if cc.has_function_attribute('visibility:hidden')
 912   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 913 endif
 914 if cc.compiles('__uint128_t foo(void) { return 0; }',
 915                name : '__uint128_t')
 916   pre_args += '-DHAVE_UINT128'
 917 endif
 918
 919 # TODO: this is very incomplete
 920 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 921   pre_args += '-D_GNU_SOURCE'
 922 elif host_machine.system() == 'sunos'
 923   pre_args += '-D__EXTENSIONS__'
 924 elif host_machine.system() == 'windows'
 925   pre_args += [
 926     '-D_WINDOWS', '-D_WIN32_WINNT=0x0601', '-DWINVER=0x0601',
 927     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 928     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 929   ]
 930   if cc.get_id() == 'msvc'
 931     pre_args += [
 932       '-DVC_EXTRALEAN',
 933       '-D_CRT_SECURE_NO_WARNINGS',
 934       '-D_CRT_SECURE_NO_DEPRECATE',
 935       '-D_SCL_SECURE_NO_WARNINGS',
 936       '-D_SCL_SECURE_NO_DEPRECATE',
 937       '-D_ALLOW_KEYWORD_MACROS',
 938       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 939     ]
 940   else
 941     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 942   endif
 943 endif
 944
 945 # Check for generic C arguments
 946 c_args = []
 947 c_msvc_compat_args = []
 948 no_override_init_args = []
 949 cpp_args = []
 950 cpp_msvc_compat_args = []
 951 if cc.get_id() == 'msvc'
 952   foreach a : ['/wd4018',  # signed/unsigned mismatch
 953                '/wd4056',  # overflow in floating-point constant arithmetic
 954                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 955                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 956                '/wd4305',  # trancation from 'type1' to 'type2'
 957                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 958                '/wd4756',  # overflow in constant arithmetic
 959                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 960                '/wd4996',  # disabled deprecated POSIX name warnings
 961                '/wd4291',  # no matching operator delete found
 962                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 963                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 964                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 965               ]
 966     if cc.has_argument(a)
 967       c_args += a
 968     endif
 969     if cpp.has_argument(a)
 970       cpp_args += a
 971     endif
 972   endforeach
 973   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
 974     c_args += '-Wno-microsoft-enum-value'
 975     cpp_args += '-Wno-microsoft-enum-value'
 976   endif
 977 else
 978   _trial = [
 979     '-Werror=implicit-function-declaration',
 980     '-Werror=missing-prototypes',
 981     '-Werror=return-type',
 982     '-Werror=empty-body',
 983     '-Werror=incompatible-pointer-types',
 984     '-Werror=int-conversion',
 985     '-Wimplicit-fallthrough',
 986     '-Wno-missing-field-initializers',
 987     '-Wno-format-truncation',
 988     '-fno-math-errno',
 989     '-fno-trapping-math',
 990     '-Qunused-arguments',
 991     '-fno-common',
 992   ]
 993   # MinGW chokes on format specifiers and I can't get it all working
 994   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
 995     _trial += ['-Werror=format', '-Wformat-security']
 996   endif
 997   foreach a : _trial
 998     if cc.has_argument(a)
 999       c_args += a
1000     endif
1001   endforeach
1002
1003   _trial = [
1004     '-Werror=return-type',
1005     '-Werror=empty-body',
1006     '-Wno-non-virtual-dtor',
1007     '-Wno-missing-field-initializers',
1008     '-Wno-format-truncation',
1009     '-fno-math-errno',
1010     '-fno-trapping-math',
1011     '-Qunused-arguments',
1012     # Some classes use custom new operator which zeroes memory, however
1013     # gcc does aggressive dead-store elimination which threats all writes
1014     # to the memory before the constructor as "dead stores".
1015     # For now we disable this optimization.
1016     '-flifetime-dse=1',
1017   ]
1018   # MinGW chokes on format specifiers and I can't get it all working
1019   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1020     _trial += ['-Werror=format', '-Wformat-security']
1021   endif
1022   foreach a : _trial
1023     if cpp.has_argument(a)
1024       cpp_args += a
1025     endif
1026   endforeach
1027
1028   foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
1029     if cc.has_argument(a)
1030       no_override_init_args += a
1031     endif
1032   endforeach
1033
1034   # Check for C and C++ arguments for MSVC compatibility. These are only used
1035   # in parts of the mesa code base that need to compile with MSVC, mainly
1036   # common code
1037   foreach a : ['-Werror=pointer-arith', '-Werror=vla', '-Werror=gnu-empty-initializer']
1038     if cc.has_argument(a)
1039       c_msvc_compat_args += a
1040     endif
1041     if cpp.has_argument(a)
1042       cpp_msvc_compat_args += a
1043     endif
1044   endforeach
1045 endif
1046
1047 # set linker arguments
1048 if host_machine.system() == 'windows'
1049   if cc.get_id() == 'msvc'
1050     add_project_link_arguments(
1051       '/fixed:no',
1052       '/dynamicbase',
1053       '/nxcompat',
1054       language : ['c', 'cpp'],
1055     )
1056     if get_option('buildtype') != 'debug'
1057       add_project_link_arguments(
1058         '/incremental:no',
1059         language : ['c', 'cpp'],
1060       )
1061     endif
1062   else
1063     add_project_link_arguments(
1064       '-Wl,--nxcompat',
1065       '-Wl,--dynamicbase',
1066       '-static-libgcc',
1067       '-static-libstdc++',
1068       language : ['c', 'cpp'],
1069     )
1070   endif
1071 endif
1072
1073 if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1074   pre_args += '-DUSE_SSE41'
1075   with_sse41 = true
1076   sse41_args = ['-msse4.1']
1077
1078   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1079   # that's not guaranteed
1080   if host_machine.cpu_family() == 'x86'
1081     sse41_args += '-mstackrealign'
1082   endif
1083 else
1084   with_sse41 = false
1085   sse41_args = []
1086 endif
1087
1088 # Check for GCC style atomics
1089 dep_atomic = null_dep
1090
1091 if cc.compiles('''#include <stdint.h>
1092                   int main() {
1093                     struct {
1094                       uint64_t *v;
1095                     } x;
1096                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1097                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1098
1099                   }''',
1100                name : 'GCC atomic builtins')
1101   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1102
1103   # Not all atomic calls can be turned into lock-free instructions, in which
1104   # GCC will make calls into the libatomic library. Check whether we need to
1105   # link with -latomic.
1106   #
1107   # This can happen for 64-bit atomic operations on 32-bit architectures such
1108   # as ARM.
1109   if not cc.links('''#include <stdint.h>
1110                      int main() {
1111                        struct {
1112                          uint64_t *v;
1113                        } x;
1114                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1115                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1116                      }''',
1117                   name : 'GCC atomic builtins required -latomic')
1118     dep_atomic = cc.find_library('atomic')
1119   endif
1120 endif
1121 if not cc.links('''#include <stdint.h>
1122                    uint64_t v;
1123                    int main() {
1124                      return __sync_add_and_fetch(&v, (uint64_t)1);
1125                    }''',
1126                 dependencies : dep_atomic,
1127                 name : 'GCC 64bit atomics')
1128   pre_args += '-DMISSING_64BIT_ATOMICS'
1129 endif
1130
1131 dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1132
1133 # TODO: shared/static? Is this even worth doing?
1134
1135 with_asm_arch = ''
1136 if host_machine.cpu_family() == 'x86'
1137   if system_has_kms_drm or host_machine.system() == 'gnu'
1138     with_asm_arch = 'x86'
1139     pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1140                  '-DUSE_SSE_ASM']
1141
1142     if with_glx_read_only_text
1143       pre_args += ['-DGLX_X86_READONLY_TEXT']
1144     endif
1145   endif
1146 elif host_machine.cpu_family() == 'x86_64'
1147   if system_has_kms_drm
1148     with_asm_arch = 'x86_64'
1149     pre_args += ['-DUSE_X86_64_ASM']
1150   endif
1151 elif host_machine.cpu_family() == 'arm'
1152   if system_has_kms_drm
1153     with_asm_arch = 'arm'
1154     pre_args += ['-DUSE_ARM_ASM']
1155   endif
1156 elif host_machine.cpu_family() == 'aarch64'
1157   if system_has_kms_drm
1158     with_asm_arch = 'aarch64'
1159     pre_args += ['-DUSE_AARCH64_ASM']
1160   endif
1161 elif host_machine.cpu_family() == 'sparc64'
1162   if system_has_kms_drm
1163     with_asm_arch = 'sparc'
1164     pre_args += ['-DUSE_SPARC_ASM']
1165   endif
1166 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1167   if system_has_kms_drm
1168     with_asm_arch = 'ppc64le'
1169     pre_args += ['-DUSE_PPC64LE_ASM']
1170   endif
1171 endif
1172
1173 # Check for standard headers and functions
1174 if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1175   cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1176   cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1177   pre_args += '-DMAJOR_IN_SYSMACROS'
1178 endif
1179 if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1180   cc.has_header_symbol('sys/mkdev.h', 'minor') and
1181   cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1182   pre_args += '-DMAJOR_IN_MKDEV'
1183 endif
1184
1185 if not ['linux'].contains(host_machine.system())
1186   # Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1187   if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1188     pre_args += '-DHAVE_SYS_SYSCTL_H'
1189   endif
1190 endif
1191
1192 foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
1193   if cc.check_header(h)
1194     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1195   endif
1196 endforeach
1197
1198 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r', 'getrandom']
1199   if cc.has_function(f)
1200     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1201   endif
1202 endforeach
1203
1204 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1205                         args : '-D_GNU_SOURCE')
1206    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1207 elif with_tools.contains('intel')
1208   error('Intel tools require the program_invocation_name variable')
1209 endif
1210
1211 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1212 # This means that this check will succeed, but then compilation will later
1213 # fail. MSVC doesn't have this function at all, so only check for it on
1214 # non-windows platforms.
1215 if host_machine.system() != 'windows'
1216   if cc.has_function('posix_memalign')
1217     pre_args += '-DHAVE_POSIX_MEMALIGN'
1218   endif
1219 endif
1220
1221 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1222    #include <dirent.h>''')
1223    pre_args += '-DHAVE_DIRENT_D_TYPE'
1224 endif
1225
1226 # strtod locale support
1227 if cc.links('''
1228     #define _GNU_SOURCE
1229     #include <stdlib.h>
1230     #include <locale.h>
1231     #ifdef HAVE_XLOCALE_H
1232     #include <xlocale.h>
1233     #endif
1234     int main() {
1235       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1236       const char *s = "1.0";
1237       char *end;
1238       double d = strtod_l(s, end, loc);
1239       float f = strtof_l(s, end, loc);
1240       freelocale(loc);
1241       return 0;
1242     }''',
1243     args : pre_args,
1244     name : 'strtod has locale support')
1245   pre_args += '-DHAVE_STRTOD_L'
1246 endif
1247
1248 # Check for some linker flags
1249 ld_args_bsymbolic = []
1250 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1251   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1252 endif
1253 ld_args_gc_sections = []
1254 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1255             args : '-Wl,--gc-sections', name : 'gc-sections')
1256   ld_args_gc_sections += '-Wl,--gc-sections'
1257 endif
1258 with_ld_version_script = false
1259 if cc.links('int main() { return 0; }',
1260             args : '-Wl,--version-script=@0@'.format(
1261               join_paths(meson.source_root(), 'build-support/conftest.map')),
1262             name : 'version-script')
1263   with_ld_version_script = true
1264 endif
1265 with_ld_dynamic_list = false
1266 if cc.links('int main() { return 0; }',
1267             args : '-Wl,--dynamic-list=@0@'.format(
1268               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1269             name : 'dynamic-list')
1270   with_ld_dynamic_list = true
1271 endif
1272
1273 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1274
1275 # check for dl support
1276 dep_dl = null_dep
1277 if not cc.has_function('dlopen')
1278   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1279 endif
1280 if cc.has_function('dladdr', dependencies : dep_dl)
1281   # This is really only required for megadrivers
1282   pre_args += '-DHAVE_DLADDR'
1283 endif
1284
1285 if cc.has_function('dl_iterate_phdr')
1286   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1287 elif with_intel_vk
1288   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1289 elif with_dri_i965 and with_shader_cache
1290   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1291 endif
1292
1293 # Determine whether or not the rt library is needed for time functions
1294 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1295   dep_clock = null_dep
1296 else
1297   dep_clock = cc.find_library('rt')
1298 endif
1299
1300 # TODO: some of these may be conditional
1301 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1302 pre_args += '-DHAVE_ZLIB'
1303
1304 _zstd = get_option('zstd')
1305 if _zstd == 'true'
1306   _zstd = 'enabled'
1307   warning('zstd option "true" deprecated, please use "enabled" instead.')
1308 elif _zstd == 'false'
1309   _zstd = 'disabled'
1310   warning('zstd option "false" deprecated, please use "disabled" instead.')
1311 endif
1312 if _zstd != 'disabled'
1313   dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1314   if dep_zstd.found()
1315     pre_args += '-DHAVE_ZSTD'
1316   endif
1317 else
1318   dep_zstd = null_dep
1319 endif
1320
1321 dep_thread = dependency('threads')
1322 if dep_thread.found() and host_machine.system() != 'windows'
1323   pre_args += '-DHAVE_PTHREAD'
1324   if cc.has_function(
1325       'pthread_setaffinity_np',
1326       dependencies : dep_thread,
1327       prefix : '#include <pthread.h>',
1328       args : '-D_GNU_SOURCE')
1329     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1330   endif
1331   if cc.has_function(
1332       'pthread_setaffinity_np',
1333       dependencies : dep_thread,
1334       prefix : '#include <pthread_np.h>')
1335     pre_args += '-DPTHREAD_SETAFFINITY_IN_NP_HEADER'
1336   endif
1337 endif
1338 if host_machine.system() != 'windows'
1339   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1340 else
1341   dep_expat = null_dep
1342 endif
1343 # this only exists on linux so either this is linux and it will be found, or
1344 # it's not linux and wont
1345 dep_m = cc.find_library('m', required : false)
1346
1347 # Check for libdrm. Various drivers have different libdrm version requirements,
1348 # but we always want to use the same version for all libdrm modules. That means
1349 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1350 # bar are both on use 2.4.3 for both of them
1351 dep_libdrm_amdgpu = null_dep
1352 dep_libdrm_radeon = null_dep
1353 dep_libdrm_nouveau = null_dep
1354 dep_libdrm_intel = null_dep
1355
1356 _drm_amdgpu_ver = '2.4.100'
1357 _drm_radeon_ver = '2.4.71'
1358 _drm_nouveau_ver = '2.4.66'
1359 _drm_intel_ver = '2.4.75'
1360 _drm_ver = '2.4.81'
1361
1362 _libdrm_checks = [
1363   ['intel', with_dri_i915 or with_gallium_i915],
1364   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1365   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1366               with_gallium_r300 or with_gallium_r600)],
1367   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1368 ]
1369
1370 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1371 # library.
1372 if with_gallium_vc4
1373   _drm_ver = '2.4.89'
1374 endif
1375
1376 # etnaviv only needs core libdrm
1377 if with_gallium_etnaviv
1378   _drm_ver = '2.4.89'
1379 endif
1380
1381 # Loop over the enables versions and get the highest libdrm requirement for all
1382 # active drivers.
1383 _drm_blame = ''
1384 foreach d : _libdrm_checks
1385   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1386   if d[1] and ver.version_compare('>' + _drm_ver)
1387     _drm_ver = ver
1388     _drm_blame = d[0]
1389   endif
1390 endforeach
1391 if _drm_blame != ''
1392   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1393 endif
1394
1395 # Then get each libdrm module
1396 foreach d : _libdrm_checks
1397   if d[1]
1398     set_variable(
1399       'dep_libdrm_' + d[0],
1400       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1401     )
1402   endif
1403 endforeach
1404
1405 with_gallium_drisw_kms = false
1406 dep_libdrm = dependency(
1407   'libdrm', version : '>=' + _drm_ver,
1408   # GNU/Hurd includes egl_dri2, without drm.
1409   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1410 )
1411 if dep_libdrm.found()
1412   pre_args += '-DHAVE_LIBDRM'
1413   if with_dri_platform == 'drm' and with_dri
1414     with_gallium_drisw_kms = true
1415   endif
1416 endif
1417
1418 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1419 llvm_optional_modules = ['coroutines']
1420 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1421   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1422   if with_gallium_r600
1423     llvm_modules += 'asmparser'
1424   endif
1425 endif
1426 if with_gallium_opencl
1427   llvm_modules += [
1428     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1429     'lto', 'option', 'objcarcopts', 'profiledata',
1430   ]
1431 endif
1432
1433 if with_amd_vk or with_gallium_radeonsi
1434   _llvm_version = '>= 8.0.0'
1435 elif with_gallium_swr
1436   _llvm_version = '>= 6.0.0'
1437 else
1438   _llvm_version = '>= 3.9.0'
1439 endif
1440
1441 _shared_llvm = get_option('shared-llvm')
1442 if _shared_llvm == 'true'
1443   _shared_llvm = 'enabled'
1444   warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1445 elif _shared_llvm == 'false'
1446   _shared_llvm = 'disabled'
1447   warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1448 endif
1449 if _shared_llvm == 'auto'
1450   _shared_llvm = (host_machine.system() != 'windows')
1451 else
1452   _shared_llvm = (_shared_llvm == 'enabled')
1453 endif
1454 _llvm = get_option('llvm')
1455 if _llvm == 'true'
1456   _llvm = 'enabled'
1457   warning('llvm option "true" deprecated, please use "enabled" instead.')
1458 elif _llvm == 'false'
1459   _llvm = 'disabled'
1460   warning('llvm option "false" deprecated, please use "disabled" instead.')
1461 endif
1462
1463 # the cmake method can only link statically, so don't attempt to use it if we
1464 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1465 # linking is requested, so we need to force the config-tool method to be used
1466 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1467 # linking is requested.
1468 _llvm_method = 'auto'
1469 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1470   _llvm_method = 'config-tool'
1471 endif
1472
1473 dep_llvm = null_dep
1474 with_llvm = false
1475 if _llvm != 'disabled'
1476   dep_llvm = dependency(
1477     'llvm',
1478     version : _llvm_version,
1479     modules : llvm_modules,
1480     optional_modules : llvm_optional_modules,
1481     required : (
1482       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1483       with_gallium_opencl or _llvm == 'enabled'
1484     ),
1485     static : not _shared_llvm,
1486     method : _llvm_method,
1487     fallback : ['llvm', 'dep_llvm'],
1488   )
1489   with_llvm = dep_llvm.found()
1490 endif
1491 if with_llvm
1492   pre_args += '-DLLVM_AVAILABLE'
1493   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1494
1495   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1496   # programs, so we need to build all C++ code in mesa without rtti as well to
1497   # ensure that linking works.
1498   #
1499   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1500   # builtin llvm-config based finder. A new generic variable getter method
1501   # has also been added, so we'll use that if we can, to cover the cmake case.
1502   if dep_llvm.type_name() == 'internal'
1503     _rtti = subproject('llvm').get_variable('has_rtti', true)
1504   else
1505     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1506     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1507   endif
1508   if not _rtti
1509     if with_gallium_nouveau
1510       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1511     elif with_gallium_opencl
1512       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1513     endif
1514     if cc.get_id() == 'msvc'
1515       cpp_args += '/GR-'
1516     else
1517       cpp_args += '-fno-rtti'
1518     endif
1519   endif
1520 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1521   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1522 elif with_gallium_opencl
1523   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1524 endif
1525
1526 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1527     (with_gallium_r600 and with_llvm))
1528   dep_elf = dependency('libelf', required : false)
1529   if not dep_elf.found()
1530     dep_elf = cc.find_library('elf')
1531   endif
1532 else
1533   dep_elf = null_dep
1534 endif
1535
1536 dep_glvnd = null_dep
1537 if with_glvnd
1538   dep_glvnd = dependency('libglvnd', version : '>= 1.2.0')
1539   pre_args += '-DUSE_LIBGLVND=1'
1540 endif
1541
1542 _valgrind = get_option('valgrind')
1543 if _valgrind == 'true'
1544   _valgrind = 'enabled'
1545   warning('valgrind option "true" deprecated, please use "enabled" instead.')
1546 elif _valgrind == 'false'
1547   _valgrind = 'disabled'
1548   warning('valgrind option "false" deprecated, please use "disabled" instead.')
1549 endif
1550 if _valgrind != 'disabled'
1551   dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1552   if dep_valgrind.found()
1553     pre_args += '-DHAVE_VALGRIND'
1554   endif
1555 else
1556   dep_valgrind = null_dep
1557 endif
1558
1559 # pthread stubs. Lets not and say we didn't
1560
1561 if host_machine.system() == 'windows'
1562   # Prefer the winflexbison versions, they're much easier to install and have
1563   # better windows support.
1564
1565   prog_flex = find_program('win_flex', required : false)
1566   if prog_flex.found()
1567     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1568     # _fileno functions)
1569     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1570   else
1571     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1572   endif
1573   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1574   # __STDC__ macro to determine whether it's safe to use const keyword, but
1575   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1576   prog_flex += '-DYY_USE_CONST='
1577
1578   prog_bison = find_program('win_bison', required : false)
1579   if not prog_bison.found()
1580     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1581   endif
1582 else
1583   prog_bison = find_program('bison', required : with_any_opengl)
1584
1585   # Disable deprecated keyword warnings, since we have to use them for
1586   # old-bison compat.  See discussion in
1587   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1588   if find_program('bison', required : false, version : '> 2.3').found()
1589     prog_bison = [prog_bison, '-Wno-deprecated']
1590   endif
1591
1592   prog_flex = find_program('flex', required : with_any_opengl)
1593 endif
1594
1595 dep_selinux = null_dep
1596 if get_option('selinux')
1597   dep_selinux = dependency('libselinux')
1598   pre_args += '-DMESA_SELINUX'
1599 endif
1600
1601 _libunwind = get_option('libunwind')
1602 if _libunwind == 'true'
1603   _libunwind = 'enabled'
1604   warning('libunwind option "true" deprecated, please use "enabled" instead.')
1605 elif _libunwind == 'false'
1606   _libunwind = 'disabled'
1607   warning('libunwind option "false" deprecated, please use "disabled" instead.')
1608 endif
1609 if _libunwind != 'disabled'
1610   dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1611   if dep_unwind.found()
1612     pre_args += '-DHAVE_LIBUNWIND'
1613   endif
1614 else
1615   dep_unwind = null_dep
1616 endif
1617
1618 if with_osmesa != 'none'
1619   if with_osmesa == 'gallium' and not with_gallium_softpipe
1620     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1621   endif
1622   if host_machine.system() == 'windows'
1623     osmesa_lib_name = 'osmesa'
1624   else
1625     osmesa_lib_name = 'OSMesa'
1626   endif
1627   osmesa_bits = get_option('osmesa-bits')
1628   if osmesa_bits != '8'
1629     if with_dri or with_glx != 'disabled'
1630       error('OSMesa bits must be 8 if building glx or dir based drivers')
1631     endif
1632     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1633     pre_args += [
1634       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1635     ]
1636   endif
1637 endif
1638
1639 # TODO: symbol mangling
1640
1641 if with_platform_wayland
1642   dep_wl_scanner = dependency('wayland-scanner', native: true)
1643   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1644   if dep_wl_scanner.version().version_compare('>= 1.15')
1645     wl_scanner_arg = 'private-code'
1646   else
1647     wl_scanner_arg = 'code'
1648   endif
1649   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1650   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1651   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1652   if with_egl
1653     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1654     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1655   endif
1656   wayland_dmabuf_xml = join_paths(
1657     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1658     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1659   )
1660   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1661 endif
1662
1663 dep_x11 = null_dep
1664 dep_xext = null_dep
1665 dep_xdamage = null_dep
1666 dep_xfixes = null_dep
1667 dep_x11_xcb = null_dep
1668 dep_xcb = null_dep
1669 dep_xcb_glx = null_dep
1670 dep_xcb_dri2 = null_dep
1671 dep_xcb_dri3 = null_dep
1672 dep_dri2proto = null_dep
1673 dep_glproto = null_dep
1674 dep_xxf86vm = null_dep
1675 dep_xcb_dri3 = null_dep
1676 dep_xcb_present = null_dep
1677 dep_xcb_sync = null_dep
1678 dep_xcb_xfixes = null_dep
1679 dep_xshmfence = null_dep
1680 dep_xcb_xrandr = null_dep
1681 dep_xlib_xrandr = null_dep
1682 if with_platform_x11
1683   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1684     dep_x11 = dependency('x11')
1685     dep_xext = dependency('xext')
1686     dep_xcb = dependency('xcb')
1687   elif with_glx == 'dri'
1688     dep_x11 = dependency('x11')
1689     dep_xext = dependency('xext')
1690     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1691     dep_xfixes = dependency('xfixes')
1692     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1693   endif
1694   if (with_any_vk or with_glx == 'dri' or with_egl or
1695        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1696         with_gallium_omx != 'disabled'))
1697     dep_xcb = dependency('xcb')
1698     dep_x11_xcb = dependency('x11-xcb')
1699     if with_dri_platform == 'drm' and not dep_libdrm.found()
1700       error('libdrm required for gallium video statetrackers when using x11')
1701     endif
1702   endif
1703   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1704     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1705
1706     if with_dri3
1707       pre_args += '-DHAVE_DRI3'
1708       dep_xcb_dri3 = dependency('xcb-dri3')
1709       dep_xcb_present = dependency('xcb-present')
1710       # until xcb-dri3 has been around long enough to make a hard-dependency:
1711       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1712           dep_xcb_present.version().version_compare('>= 1.13'))
1713         pre_args += '-DHAVE_DRI3_MODIFIERS'
1714       endif
1715       dep_xcb_sync = dependency('xcb-sync')
1716       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1717     endif
1718   endif
1719   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1720     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1721   endif
1722   if with_glx == 'dri'
1723     if with_dri_platform == 'drm'
1724       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1725       dep_xxf86vm = dependency('xxf86vm')
1726     endif
1727   endif
1728   if (with_egl or (
1729       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1730       with_gallium_omx != 'disabled'))
1731     dep_xcb_xfixes = dependency('xcb-xfixes')
1732   endif
1733   if with_xlib_lease
1734     dep_xcb_xrandr = dependency('xcb-randr')
1735     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1736   endif
1737 endif
1738
1739 if get_option('gallium-extra-hud')
1740   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1741 endif
1742
1743 _sensors = get_option('lmsensors')
1744 if _sensors == 'true'
1745   _sensors = 'enabled'
1746   warning('sensors option "true" deprecated, please use "enabled" instead.')
1747 elif _sensors == 'false'
1748   _sensors = 'disabled'
1749   warning('sensors option "false" deprecated, please use "disabled" instead.')
1750 endif
1751 if _sensors != 'disabled'
1752   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
1753   if dep_lmsensors.found()
1754     pre_args += '-DHAVE_LIBSENSORS=1'
1755   endif
1756 else
1757   dep_lmsensors = null_dep
1758 endif
1759
1760 foreach a : pre_args
1761   add_project_arguments(a, language : ['c', 'cpp'])
1762 endforeach
1763 foreach a : c_args
1764   add_project_arguments(a, language : ['c'])
1765 endforeach
1766 foreach a : cpp_args
1767   add_project_arguments(a, language : ['cpp'])
1768 endforeach
1769
1770 gl_priv_reqs = []
1771
1772 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1773   gl_priv_reqs += ['x11', 'xext', 'xcb']
1774 elif with_glx == 'dri'
1775   gl_priv_reqs += [
1776     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1777     'xcb-glx >= 1.8.1']
1778   if with_dri_platform == 'drm'
1779     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1780     gl_priv_reqs += 'xxf86vm'
1781   endif
1782 endif
1783 if dep_libdrm.found()
1784   gl_priv_reqs += 'libdrm >= 2.4.75'
1785 endif
1786
1787 gl_priv_libs = []
1788 if dep_thread.found()
1789   gl_priv_libs += ['-lpthread', '-pthread']
1790 endif
1791 if dep_m.found()
1792   gl_priv_libs += '-lm'
1793 endif
1794 if dep_dl.found()
1795   gl_priv_libs += '-ldl'
1796 endif
1797
1798 pkg = import('pkgconfig')
1799
1800 if host_machine.system() == 'windows'
1801   prog_dumpbin = find_program('dumpbin', required : false)
1802   with_symbols_check = prog_dumpbin.found() and with_tests
1803   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1804 else
1805   prog_nm = find_program('nm')
1806   with_symbols_check = with_tests
1807   symbols_check_args = ['--nm', prog_nm.path()]
1808 endif
1809
1810 # This quirk needs to be applied to sources with functions defined in assembly
1811 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1812 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1813
1814 subdir('include')
1815 subdir('bin')
1816 subdir('src')
1817
1818 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1819 # formatting below unless the first argument is passed as a variable. This has
1820 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1821 # for backwards compatibility.
1822 _with_opengl_string = with_opengl ? 'yes' : 'no'
1823
1824 lines = ['',
1825   'prefix:          ' + get_option('prefix'),
1826   'libdir:          ' + get_option('libdir'),
1827   'includedir:      ' + get_option('includedir'),
1828   '',
1829   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1830                                                     with_gles1 ? 'yes' : 'no',
1831                                                     with_gles2 ? 'yes' : 'no'),
1832 ]
1833
1834 if with_osmesa != 'none'
1835   lines += ''
1836   suffix = ''
1837   if with_osmesa == 'gallium'
1838     suffix = '(Gallium)'
1839   endif
1840   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1841 else
1842   lines += 'OSMesa:          no'
1843 endif
1844
1845 if with_dri
1846   lines += ''
1847   lines += 'DRI platform:    ' + with_dri_platform
1848   if dri_drivers.length() != 0 and dri_drivers != ['']
1849     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1850   else
1851     lines += 'DRI drivers:     no'
1852   endif
1853   lines += 'DRI driver dir:  ' + dri_drivers_path
1854 endif
1855
1856 if with_glx != 'disabled'
1857   lines += ''
1858   if with_glx == 'dri'
1859     lines += 'GLX:             DRI-based'
1860   elif with_glx == 'xlib'
1861     lines += 'GLX:             Xlib-based'
1862   elif with_glx == 'gallium-xlib'
1863     lines += 'GLX:             Xlib-based (Gallium)'
1864   else
1865     lines += 'GLX:             ' + with_glx
1866   endif
1867 endif
1868
1869 lines += ''
1870 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1871 if with_egl
1872   egl_drivers = []
1873   if with_dri
1874     egl_drivers += 'builtin:egl_dri2'
1875   endif
1876   if with_dri3
1877     egl_drivers += 'builtin:egl_dri3'
1878   endif
1879   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1880 endif
1881 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1882 if with_egl or with_any_vk
1883   _platforms += 'surfaceless'
1884   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1885 endif
1886
1887 lines += ''
1888 if with_any_vk
1889   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1890   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1891 else
1892   lines += 'Vulkan drivers:  no'
1893 endif
1894
1895 lines += ''
1896 if with_llvm
1897   lines += 'llvm:            yes'
1898   lines += 'llvm-version:    ' + dep_llvm.version()
1899 else
1900   lines += 'llvm:            no'
1901 endif
1902
1903 lines += ''
1904 if with_gallium
1905   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1906   gallium_st = ['mesa']
1907   if with_gallium_xa
1908     gallium_st += 'xa'
1909   endif
1910   if with_gallium_xvmc
1911     gallium_st += 'xvmc'
1912   endif
1913   if with_gallium_xvmc
1914     gallium_st += 'xvmc'
1915   endif
1916   if with_gallium_vdpau
1917     gallium_st += 'vdpau'
1918   endif
1919   if with_gallium_omx != 'disabled'
1920     gallium_st += 'omx' + with_gallium_omx
1921   endif
1922   if with_gallium_va
1923     gallium_st += 'va'
1924   endif
1925   if with_gallium_st_nine
1926     gallium_st += 'nine'
1927   endif
1928   if with_gallium_opencl
1929     gallium_st += 'clover'
1930   endif
1931   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1932 else
1933   lines += 'Gallium:         no'
1934 endif
1935
1936 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1937
1938 lines += ''
1939 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
1940
1941
1942 indent = '        '
1943 summary = indent + ('\n' + indent).join(lines)
1944 message('Configuration summary:\n@0@\n'.format(summary))