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_aco_tests = get_option('build-aco-tests')
  55 with_glx_read_only_text = get_option('glx-read-only-text')
  56 with_glx_direct = get_option('glx-direct')
  57 with_osmesa = get_option('osmesa')
  58 with_swr_arches = get_option('swr-arches')
  59 with_vulkan_overlay_layer = get_option('vulkan-overlay-layer')
  60 with_tools = get_option('tools')
  61 if with_tools.contains('all')
  62   with_tools = [
  63     'drm-shim',
  64     'etnaviv',
  65     'freedreno',
  66     'glsl',
  67     'intel',
  68     'intel-ui',
  69     'lima',
  70     'nir',
  71     'nouveau',
  72     'xvmc',
  73   ]
  74 endif
  75
  76 with_intel_tools = with_tools.contains('intel') or with_tools.contains('intel-ui')
  77 with_imgui = with_intel_tools or with_vulkan_overlay_layer
  78
  79 dri_drivers_path = get_option('dri-drivers-path')
  80 if dri_drivers_path == ''
  81   dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri')
  82 endif
  83 dri_search_path = get_option('dri-search-path')
  84 if dri_search_path == ''
  85   dri_search_path = dri_drivers_path
  86 endif
  87
  88 with_gles1 = get_option('gles1')
  89 if with_gles1 == 'true'
  90   with_gles1 = 'enabled'
  91   warning('gles1 option "true" deprecated, please use "enabled" instead.')
  92 elif with_gles1 == 'false'
  93   with_gles1 = 'disabled'
  94   warning('gles1 option "false" deprecated, please use "disabled" instead.')
  95 endif
  96 with_gles2 = get_option('gles2')
  97 if with_gles2 == 'true'
  98   with_gles2 = 'enabled'
  99   warning('gles2 option "true" deprecated, please use "enabled" instead.')
 100 elif with_gles2 == 'false'
 101   with_gles2 = 'disabled'
 102   warning('gles2 option "false" deprecated, please use "disabled" instead.')
 103 endif
 104 if host_machine.system() == 'windows'
 105   if with_gles1 == 'auto'
 106     with_gles1 = 'disabled'
 107   endif
 108   if with_gles2 == 'auto'
 109     with_gles2 = 'disabled'
 110   endif
 111 endif
 112 with_opengl = get_option('opengl')
 113
 114 # Default shared glapi off for windows, on elsewhere.
 115 _sg = get_option('shared-glapi')
 116 if _sg == 'true'
 117   _sg = 'enabled'
 118   warning('shared-glapi option "true" deprecated, please use "enabled" instead.')
 119 elif _sg == 'false'
 120   _sg = 'disabled'
 121   warning('shared-glapi option "false" deprecated, please use "disabled" instead.')
 122 endif
 123 if _sg == 'auto'
 124   with_shared_glapi = host_machine.system() != 'windows'
 125 else
 126   with_shared_glapi = _sg == 'enabled'
 127 endif
 128
 129 # shared-glapi is required if at least two OpenGL APIs are being built
 130 if not with_shared_glapi
 131   if ((with_gles1 == 'enabled' and with_gles2 == 'enabled') or
 132       (with_gles1 == 'enabled' and with_opengl) or
 133       (with_gles2 == 'enabled' and with_opengl))
 134     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
 135   endif
 136   with_gles1 = 'disabled'
 137   with_gles2 = 'disabled'
 138 endif
 139
 140 # We require OpenGL for OpenGL ES
 141 if not with_opengl
 142   if (with_gles1 == 'enabled' or with_gles2 == 'enabled') and not with_opengl
 143     error('building OpenGL ES without OpenGL is not supported.')
 144   endif
 145   with_gles1 = 'disabled'
 146   with_gles2 = 'disabled'
 147 endif
 148
 149 with_gles1 = with_gles1 != 'disabled'
 150 with_gles2 = with_gles2 != 'disabled'
 151 with_any_opengl = with_opengl or with_gles1 or with_gles2
 152 # Only build shared_glapi if at least one OpenGL API is enabled
 153 with_shared_glapi = with_shared_glapi and with_any_opengl
 154
 155 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'gnu/kfreebsd', 'dragonfly', 'linux', 'sunos'].contains(host_machine.system())
 156
 157 dri_drivers = get_option('dri-drivers')
 158 if dri_drivers.contains('auto')
 159   if system_has_kms_drm
 160     # TODO: PPC, Sparc
 161     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 162       dri_drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 163     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 164       dri_drivers = []
 165     else
 166       error('Unknown architecture @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 167             host_machine.cpu_family()))
 168     endif
 169   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 170     # only swrast would make sense here, but gallium swrast is a much better default
 171     dri_drivers = []
 172   else
 173     error('Unknown OS @0@. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 174           host_machine.system()))
 175   endif
 176 endif
 177
 178 with_dri_i915 = dri_drivers.contains('i915')
 179 with_dri_i965 = dri_drivers.contains('i965')
 180 with_dri_r100 = dri_drivers.contains('r100')
 181 with_dri_r200 = dri_drivers.contains('r200')
 182 with_dri_nouveau = dri_drivers.contains('nouveau')
 183 with_dri_swrast = dri_drivers.contains('swrast')
 184
 185 with_dri = dri_drivers.length() != 0
 186
 187 gallium_drivers = get_option('gallium-drivers')
 188 if gallium_drivers.contains('auto')
 189   if system_has_kms_drm
 190     # TODO: PPC, Sparc
 191     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 192       gallium_drivers = [
 193         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast',
 194         'iris'
 195       ]
 196     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 197       gallium_drivers = [
 198         'kmsro', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
 199         'tegra', 'virgl', 'lima', 'panfrost', 'swrast'
 200       ]
 201     else
 202       error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 203             host_machine.cpu_family()))
 204     endif
 205   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 206     gallium_drivers = ['swrast']
 207   else
 208     error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 209           host_machine.system()))
 210   endif
 211 endif
 212 with_gallium_kmsro = gallium_drivers.contains('kmsro')
 213 with_gallium_radeonsi = gallium_drivers.contains('radeonsi')
 214 with_gallium_r300 = gallium_drivers.contains('r300')
 215 with_gallium_r600 = gallium_drivers.contains('r600')
 216 with_gallium_nouveau = gallium_drivers.contains('nouveau')
 217 with_gallium_freedreno = gallium_drivers.contains('freedreno')
 218 with_gallium_softpipe = gallium_drivers.contains('swrast')
 219 with_gallium_vc4 = gallium_drivers.contains('vc4')
 220 with_gallium_v3d = gallium_drivers.contains('v3d')
 221 with_gallium_panfrost = gallium_drivers.contains('panfrost')
 222 with_gallium_etnaviv = gallium_drivers.contains('etnaviv')
 223 with_gallium_tegra = gallium_drivers.contains('tegra')
 224 with_gallium_iris = gallium_drivers.contains('iris')
 225 with_gallium_i915 = gallium_drivers.contains('i915')
 226 with_gallium_svga = gallium_drivers.contains('svga')
 227 with_gallium_virgl = gallium_drivers.contains('virgl')
 228 with_gallium_swr = gallium_drivers.contains('swr')
 229 with_gallium_lima = gallium_drivers.contains('lima')
 230 with_gallium_zink = gallium_drivers.contains('zink')
 231
 232 with_gallium = gallium_drivers.length() != 0
 233
 234 if with_gallium and system_has_kms_drm
 235   _glx = get_option('glx')
 236   _egl = get_option('egl')
 237   if _glx == 'dri' or _egl == 'enabled' or (_glx == 'disabled' and _egl != 'disabled')
 238     with_dri = true
 239   endif
 240 endif
 241
 242 _vulkan_drivers = get_option('vulkan-drivers')
 243 if _vulkan_drivers.contains('auto')
 244   if system_has_kms_drm
 245     if host_machine.cpu_family().startswith('x86')
 246       _vulkan_drivers = ['amd', 'intel', 'swrast']
 247     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 248       _vulkan_drivers = ['swrast']
 249     else
 250       error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 251             host_machine.cpu_family()))
 252     endif
 253   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 254     # No vulkan driver supports windows or macOS currently
 255     _vulkan_drivers = []
 256   else
 257     error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
 258           host_machine.system()))
 259   endif
 260 endif
 261
 262 with_intel_vk = _vulkan_drivers.contains('intel')
 263 with_amd_vk = _vulkan_drivers.contains('amd')
 264 with_freedreno_vk = _vulkan_drivers.contains('freedreno')
 265 with_swrast_vk = _vulkan_drivers.contains('swrast')
 266 with_any_vk = _vulkan_drivers.length() != 0
 267
 268 if with_swrast_vk and not with_gallium_softpipe
 269   error('swrast vulkan requires gallium swrast')
 270 endif
 271 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 272   error('Only one swrast provider can be built')
 273 endif
 274 if with_dri_i915 and with_gallium_i915
 275   error('Only one i915 provider can be built')
 276 endif
 277 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)
 278   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 279 endif
 280 if with_gallium_tegra and not with_gallium_nouveau
 281   error('tegra driver requires nouveau driver')
 282 endif
 283 if with_aco_tests and not with_amd_vk
 284   error('ACO tests require Radv')
 285 endif
 286
 287 if host_machine.system() == 'darwin'
 288   with_dri_platform = 'apple'
 289   pre_args += '-DBUILDING_MESA'
 290 elif ['windows', 'cygwin'].contains(host_machine.system())
 291   with_dri_platform = 'windows'
 292 elif system_has_kms_drm
 293   with_dri_platform = 'drm'
 294 else
 295   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 296   # assert here that one of those cases has been met.
 297   # FIXME: illumos ends up here as well
 298   with_dri_platform = 'none'
 299 endif
 300
 301 _platforms = get_option('platforms')
 302 if _platforms.contains('auto')
 303   if system_has_kms_drm
 304     _platforms = ['x11', 'wayland']
 305   elif ['darwin', 'cygwin'].contains(host_machine.system())
 306     _platforms = ['x11']
 307   elif ['haiku'].contains(host_machine.system())
 308     _platforms = ['haiku']
 309   elif host_machine.system() == 'windows'
 310     _platforms = ['windows']
 311   else
 312     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 313           host_machine.system()))
 314   endif
 315 endif
 316
 317 with_platform_android = _platforms.contains('android')
 318 with_platform_x11 = _platforms.contains('x11')
 319 with_platform_wayland = _platforms.contains('wayland')
 320 with_platform_haiku = _platforms.contains('haiku')
 321 with_platform_windows = _platforms.contains('windows')
 322
 323 if _platforms.contains('surfaceless')
 324   warning('Platform `surfaceless` is now always selected; setting this option will be an error in Mesa 20.3')
 325 endif
 326
 327 if _platforms.contains('drm')
 328   warning('Platform `drm` is now automatically selected; setting this option will be an error in Mesa 20.3')
 329 endif
 330
 331 if _platforms.length() != 0
 332   egl_native_platform = _platforms[0]
 333 else
 334   egl_native_platform = 'surfaceless'
 335 endif
 336
 337 with_glx = get_option('glx')
 338 if with_glx == 'auto'
 339   if with_dri
 340     with_glx = 'dri'
 341   elif with_platform_haiku
 342     with_glx = 'disabled'
 343   elif host_machine.system() == 'windows'
 344     with_glx = 'disabled'
 345   elif with_gallium
 346     # Even when building just gallium drivers the user probably wants dri
 347     with_glx = 'dri'
 348   elif with_platform_x11 and with_any_opengl and not with_any_vk
 349     # The automatic behavior should not be to turn on xlib based glx when
 350     # building only vulkan drivers
 351     with_glx = 'xlib'
 352   else
 353     with_glx = 'disabled'
 354   endif
 355 endif
 356 if with_glx == 'dri'
 357    if with_gallium
 358       with_dri = true
 359    endif
 360 endif
 361
 362 if not (with_dri or with_gallium or with_glx != 'disabled')
 363   with_gles1 = false
 364   with_gles2 = false
 365   with_opengl = false
 366   with_any_opengl = false
 367   with_shared_glapi = false
 368 endif
 369
 370 _gbm = get_option('gbm')
 371 if _gbm == 'true'
 372   _gbm = 'enabled'
 373   warning('gbm option "true" deprecated, please use "enabled" instead.')
 374 elif _gbm == 'false'
 375   _gbm = 'disabled'
 376   warning('gbm option "false" deprecated, please use "disabled" instead.')
 377 endif
 378 if _gbm == 'auto'
 379   with_gbm = system_has_kms_drm and with_dri
 380 else
 381   with_gbm = _gbm == 'enabled'
 382 endif
 383 if with_gbm and not system_has_kms_drm
 384   error('GBM only supports DRM/KMS platforms')
 385 endif
 386
 387 _xlib_lease = get_option('xlib-lease')
 388 if _xlib_lease == 'true'
 389   _xlib_lease = 'enabled'
 390   warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
 391 elif _xlib_lease == 'false'
 392   _xlib_lease = 'disabled'
 393   warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
 394 endif
 395 if _xlib_lease == 'auto'
 396   with_xlib_lease = with_platform_x11 and system_has_kms_drm
 397 else
 398   with_xlib_lease = _xlib_lease == 'enabled'
 399 endif
 400
 401 _egl = get_option('egl')
 402 if _egl == 'true'
 403   _egl = 'enabled'
 404   warning('egl option "true" deprecated, please use "enabled" instead.')
 405 elif _egl == 'false'
 406   _egl = 'disabled'
 407   warning('egl option "false" deprecated, please use "disabled" instead.')
 408 endif
 409 if _egl == 'auto'
 410   with_egl = (
 411     not ['darwin', 'windows'].contains(host_machine.system()) and
 412     with_dri and with_shared_glapi
 413   )
 414 elif _egl == 'enabled'
 415   if not with_dri
 416     error('EGL requires dri')
 417   elif not with_shared_glapi
 418     error('EGL requires shared-glapi')
 419   elif not ['disabled', 'dri'].contains(with_glx)
 420     error('EGL requires dri, but a GLX is being built without dri')
 421   elif ['darwin', 'windows'].contains(host_machine.system())
 422     error('EGL is not available on Windows or MacOS')
 423   endif
 424   with_egl = true
 425 else
 426   with_egl = false
 427 endif
 428
 429 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 430 use_elf_tls = false
 431 if not ['windows', 'freebsd', 'openbsd'].contains(host_machine.system()) and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 432   pre_args += '-DUSE_ELF_TLS'
 433   use_elf_tls = true
 434 endif
 435
 436 if with_glx != 'disabled'
 437   if not (with_platform_x11 and with_any_opengl)
 438     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 439   elif with_glx == 'gallium-xlib'
 440     if not with_gallium
 441       error('Gallium-xlib based GLX requires at least one gallium driver')
 442     elif not with_gallium_softpipe
 443       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 444     elif with_dri
 445       error('gallium-xlib conflicts with any dri driver')
 446     endif
 447   elif with_glx == 'xlib'
 448     if with_dri
 449       error('xlib conflicts with any dri driver')
 450     endif
 451   elif with_glx == 'dri'
 452     if not with_shared_glapi
 453       error('dri based GLX requires shared-glapi')
 454     endif
 455   endif
 456 endif
 457
 458 with_glvnd = get_option('glvnd')
 459 if with_glvnd
 460   if with_platform_windows
 461     error('glvnd cannot be used on Windows')
 462   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 463     error('Cannot build glvnd support for GLX that is not DRI based.')
 464   elif with_glx == 'disabled' and not with_egl
 465     error('glvnd requires DRI based GLX and/or EGL')
 466   endif
 467   if get_option('egl-lib-suffix') != ''
 468     error('''EGL lib suffix can't be used with libglvnd''')
 469   endif
 470 endif
 471
 472 if with_vulkan_icd_dir == ''
 473   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 474 endif
 475
 476 # GNU/Hurd includes egl_dri2, without drm.
 477 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 478   host_machine.system() == 'gnu')
 479 _dri3 = get_option('dri3')
 480 if _dri3 == 'true'
 481   _dri3 = 'enabled'
 482   warning('dri3 option "true" deprecated, please use "enabled" instead.')
 483 elif _dri3 == 'false'
 484   _dri3 = 'disabled'
 485   warning('dri3 option "false" deprecated, please use "disabled" instead.')
 486 endif
 487 if _dri3 == 'auto'
 488   with_dri3 = system_has_kms_drm and with_dri2
 489 else
 490   with_dri3 = _dri3 == 'enabled'
 491 endif
 492
 493 if with_any_vk and (with_platform_x11 and not with_dri3)
 494   error('Vulkan drivers require dri3 for X11 support')
 495 endif
 496 if with_dri
 497   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 498     error('building dri drivers require at least one windowing system or classic osmesa')
 499   endif
 500 endif
 501
 502 _vdpau = get_option('gallium-vdpau')
 503 if _vdpau == 'true'
 504   _vdpau = 'enabled'
 505   warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
 506 elif _vdpau == 'false'
 507   _vdpau = 'disabled'
 508   warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
 509 endif
 510 if not system_has_kms_drm
 511   if _vdpau == 'enabled'
 512     error('VDPAU state tracker can only be build on unix-like OSes.')
 513   else
 514     _vdpau = 'disabled'
 515   endif
 516 elif not with_platform_x11
 517   if _vdpau == 'enabled'
 518     error('VDPAU state tracker requires X11 support.')
 519   else
 520     _vdpau = 'disabled'
 521   endif
 522 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 523           with_gallium_nouveau)
 524   if _vdpau == 'enabled'
 525     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 526   else
 527     _vdpau = 'disabled'
 528   endif
 529 endif
 530 dep_vdpau = null_dep
 531 with_gallium_vdpau = false
 532 if _vdpau != 'disabled'
 533   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
 534   if dep_vdpau.found()
 535     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 536     with_gallium_vdpau = true
 537   endif
 538 endif
 539
 540 if with_gallium_vdpau
 541   pre_args += '-DHAVE_ST_VDPAU'
 542 endif
 543 vdpau_drivers_path = get_option('vdpau-libs-path')
 544 if vdpau_drivers_path == ''
 545   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 546 endif
 547
 548 if with_gallium_zink
 549   dep_vulkan = dependency('vulkan')
 550 endif
 551
 552 if with_vulkan_overlay_layer or with_aco_tests
 553   prog_glslang = find_program('glslangValidator')
 554 endif
 555
 556 _xvmc = get_option('gallium-xvmc')
 557 if _xvmc == 'true'
 558   _xvmc = 'enabled'
 559   warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
 560 elif _xvmc == 'false'
 561   _xvmc = 'disabled'
 562   warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
 563 endif
 564 if not system_has_kms_drm
 565   if _xvmc == 'enabled'
 566     error('XVMC state tracker can only be build on unix-like OSes.')
 567   else
 568     _xvmc = 'disabled'
 569   endif
 570 elif not with_platform_x11
 571   if _xvmc == 'enabled'
 572     error('XVMC state tracker requires X11 support.')
 573   else
 574     _xvmc = 'disabled'
 575   endif
 576 elif not (with_gallium_r600 or with_gallium_nouveau)
 577   if _xvmc == 'enabled'
 578     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 579   else
 580     _xvmc = 'disabled'
 581   endif
 582 endif
 583 dep_xvmc = null_dep
 584 dep_xv = null_dep
 585 with_gallium_xvmc = false
 586 if _xvmc != 'disabled'
 587   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
 588   dep_xv = dependency('xv', required : _xvmc == 'enabled')
 589   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 590 endif
 591
 592 xvmc_drivers_path = get_option('xvmc-libs-path')
 593 if xvmc_drivers_path == ''
 594   xvmc_drivers_path = get_option('libdir')
 595 endif
 596
 597 _omx = get_option('gallium-omx')
 598 if not system_has_kms_drm
 599   if ['auto', 'disabled'].contains(_omx)
 600     _omx = 'disabled'
 601   else
 602     error('OMX state tracker can only be built on unix-like OSes.')
 603   endif
 604 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 605   if ['auto', 'disabled'].contains(_omx)
 606     _omx = 'disabled'
 607   else
 608     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 609   endif
 610 endif
 611 with_gallium_omx = _omx
 612 dep_omx = null_dep
 613 dep_omx_other = []
 614 if ['auto', 'bellagio'].contains(_omx)
 615   dep_omx = dependency(
 616     'libomxil-bellagio', required : _omx == 'bellagio'
 617   )
 618   if dep_omx.found()
 619     with_gallium_omx = 'bellagio'
 620   endif
 621 endif
 622 if ['auto', 'tizonia'].contains(_omx)
 623   if with_dri and with_egl
 624     dep_omx = dependency(
 625       'libtizonia', version : '>= 0.10.0',
 626       required : _omx == 'tizonia',
 627     )
 628     dep_omx_other = [
 629       dependency('libtizplatform', required : _omx == 'tizonia'),
 630       dependency('tizilheaders', required : _omx == 'tizonia'),
 631     ]
 632     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 633       with_gallium_omx = 'tizonia'
 634     endif
 635   elif _omx == 'tizonia'
 636     error('OMX-Tizonia state tracker requires dri and egl')
 637   endif
 638 endif
 639 if _omx == 'auto'
 640   with_gallium_omx = 'disabled'
 641 else
 642   with_gallium_omx = _omx
 643 endif
 644
 645 pre_args += [
 646   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 647   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 648 ]
 649
 650
 651 omx_drivers_path = get_option('omx-libs-path')
 652
 653 if with_gallium_omx != 'disabled'
 654   # Figure out where to put the omx driver.
 655   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 656   # argument to meson's get_pkgconfig_variable method.
 657   if omx_drivers_path == ''
 658     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 659     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 660     if _omx_libdir == get_option('libdir')
 661       omx_drivers_path = _omx_drivers_dir
 662     else
 663       _omx_base_dir = []
 664       # This will fail on windows. Does OMX run on windows?
 665       _omx_libdir = _omx_libdir.split('/')
 666       _omx_drivers_dir = _omx_drivers_dir.split('/')
 667       foreach o : _omx_drivers_dir
 668         if not _omx_libdir.contains(o)
 669           _omx_base_dir += o
 670         endif
 671       endforeach
 672       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 673     endif
 674   endif
 675 endif
 676
 677 _va = get_option('gallium-va')
 678 if _va == 'true'
 679   _va = 'enabled'
 680   warning('gallium-va option "true" deprecated, please use "enabled" instead.')
 681 elif _va == 'false'
 682   _va = 'disabled'
 683   warning('gallium-va option "false" deprecated, please use "disabled" instead.')
 684 endif
 685 if not system_has_kms_drm
 686   if _va == 'enabled'
 687     error('VA state tracker can only be built on unix-like OSes.')
 688   else
 689     _va = 'disabled'
 690   endif
 691 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 692   if _va == 'enabled'
 693     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 694   else
 695     _va = 'disabled'
 696   endif
 697 endif
 698 with_gallium_va = false
 699 dep_va = null_dep
 700 if _va != 'disabled'
 701   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'enabled')
 702   if dep_va.found()
 703     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 704     with_gallium_va = true
 705   endif
 706 endif
 707
 708 va_drivers_path = get_option('va-libs-path')
 709 if va_drivers_path == ''
 710   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 711 endif
 712
 713 _xa = get_option('gallium-xa')
 714 if _xa == 'true'
 715   _xa = 'enabled'
 716   warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
 717 elif _xa == 'false'
 718   _xa = 'disabled'
 719   warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
 720 endif
 721 if not system_has_kms_drm
 722   if _xa == 'enabled'
 723     error('XA state tracker can only be built on unix-like OSes.')
 724   else
 725     _xa = 'disabled'
 726   endif
 727 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 728           or with_gallium_svga)
 729   if _xa == 'enabled'
 730     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 731   else
 732     _xa = 'disabled'
 733   endif
 734 endif
 735 with_gallium_xa = _xa != 'disabled'
 736
 737 d3d_drivers_path = get_option('d3d-drivers-path')
 738 if d3d_drivers_path == ''
 739   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 740 endif
 741
 742 with_gallium_st_nine =  get_option('gallium-nine')
 743 if with_gallium_st_nine
 744   if not with_gallium_softpipe
 745     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 746   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 747             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 748             or with_gallium_iris)
 749     error('The nine state tracker requires at least one non-swrast gallium driver.')
 750   endif
 751   if not with_dri3
 752     error('Using nine with wine requires dri3')
 753   endif
 754 endif
 755 _power8 = get_option('power8')
 756 if _power8 == 'true'
 757   _power8 = 'enabled'
 758   warning('power8 option "true" deprecated, please use "enabled" instead.')
 759 elif _power8 == 'disabled'
 760   _power8 = 'disabled'
 761   warning('power8 option "false" deprecated, please use "disabled" instead.')
 762 endif
 763 if _power8 != 'disabled'
 764   # on old versions of meson the cpu family would return as ppc64le on little
 765   # endian power8, this was changed in 0.48 such that the family would always
 766   # be ppc64 regardless of endianness, and then the machine.endian() value
 767   # should be checked. Since we support versions < 0.48 we need to use
 768   # startswith.
 769   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 770     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 771       error('Altivec is not supported with gcc version < 4.8.')
 772     endif
 773     if cc.compiles('''
 774         #include <altivec.h>
 775         int main() {
 776           vector unsigned char r;
 777           vector unsigned int v = vec_splat_u32 (1);
 778           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 779           return 0;
 780         }''',
 781         args : '-mpower8-vector',
 782         name : 'POWER8 intrinsics')
 783       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 784     elif get_option('power8') == 'enabled'
 785       error('POWER8 intrinsic support required but not found.')
 786     endif
 787   endif
 788 endif
 789
 790 _opencl = get_option('gallium-opencl')
 791 if _opencl != 'disabled'
 792   if not with_gallium
 793     error('OpenCL Clover implementation requires at least one gallium driver.')
 794   endif
 795
 796   dep_clc = dependency('libclc')
 797   with_gallium_opencl = true
 798   with_opencl_icd = _opencl == 'icd'
 799 else
 800   dep_clc = null_dep
 801   with_gallium_opencl = false
 802   with_opencl_icd = false
 803 endif
 804
 805 gl_pkgconfig_c_flags = []
 806 if with_platform_x11
 807   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 808     pre_args += '-DHAVE_X11_PLATFORM'
 809   endif
 810   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 811     pre_args += '-DUSE_XSHM'
 812   else
 813     pre_args += '-DGLX_INDIRECT_RENDERING'
 814     if with_glx_direct
 815       pre_args += '-DGLX_DIRECT_RENDERING'
 816     endif
 817     if with_dri_platform == 'drm'
 818       pre_args += '-DGLX_USE_DRM'
 819     elif with_dri_platform == 'apple'
 820       pre_args += '-DGLX_USE_APPLEGL'
 821     elif with_dri_platform == 'windows'
 822       pre_args += '-DGLX_USE_WINDOWSGL'
 823     endif
 824   endif
 825 else
 826   pre_args += '-DEGL_NO_X11'
 827   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 828 endif
 829 if with_gbm
 830   pre_args += '-DHAVE_DRM_PLATFORM'
 831 endif
 832
 833 with_android_stub = get_option('android-stub')
 834 if with_android_stub and not with_platform_android
 835   error('`-D android-stub=true` makes no sense without `-D platforms=android`')
 836 endif
 837
 838 if with_platform_android
 839   if not with_android_stub
 840     dep_android = [
 841       dependency('cutils'),
 842       dependency('hardware'),
 843       dependency('sync'),
 844       dependency('backtrace')
 845     ]
 846     if get_option('platform-sdk-version') >= 26
 847       dep_android += dependency('nativewindow')
 848     endif
 849   endif
 850   pre_args += [
 851     '-DHAVE_ANDROID_PLATFORM',
 852     '-DANDROID',
 853     '-DANDROID_API_LEVEL=' + get_option('platform-sdk-version').to_string()
 854   ]
 855 endif
 856 if with_platform_haiku
 857   pre_args += '-DHAVE_HAIKU_PLATFORM'
 858 endif
 859
 860 prog_python = import('python').find_installation('python3')
 861 has_mako = run_command(
 862   prog_python, '-c',
 863   '''
 864 from distutils.version import StrictVersion
 865 import mako
 866 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 867   ''')
 868 if has_mako.returncode() != 0
 869   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 870 endif
 871
 872 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 873   error('When using GCC, version 4.4.6 or later is required.')
 874 endif
 875
 876 # Support systems without ETIME (e.g. FreeBSD)
 877 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 878   pre_args += '-DETIME=ETIMEDOUT'
 879 endif
 880
 881 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 882 if get_option('buildtype') == 'debug'
 883   pre_args += '-DDEBUG'
 884 endif
 885
 886 with_shader_cache = false
 887 _shader_cache = get_option('shader-cache')
 888 if _shader_cache == 'true'
 889   _shader_cache = 'enabled'
 890   warning('shader_cache option "true" deprecated, please use "enabled" instead.')
 891 elif _shader_cache == 'false'
 892   _shader_cache = 'disabled'
 893   warning('shader_cache option "false" deprecated, please use "disabled" instead.')
 894 endif
 895 if _shader_cache != 'disabled'
 896   if host_machine.system() == 'windows'
 897     if _shader_cache == 'enabled'
 898       error('Shader Cache does not currently work on Windows')
 899     endif
 900   else
 901     pre_args += '-DENABLE_SHADER_CACHE'
 902     with_shader_cache = true
 903   endif
 904 endif
 905
 906 # Check for GCC style builtins
 907 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 908              'ffsll', 'popcount', 'popcountll', 'unreachable']
 909   if cc.has_function(b)
 910     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 911   endif
 912 endforeach
 913
 914 # check for GCC __attribute__
 915 _attributes = [
 916   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
 917   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
 918 ]
 919 foreach a : cc.get_supported_function_attributes(_attributes)
 920   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 921 endforeach
 922 if cc.has_function_attribute('visibility:hidden')
 923   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 924 endif
 925 if cc.compiles('__uint128_t foo(void) { return 0; }',
 926                name : '__uint128_t')
 927   pre_args += '-DHAVE_UINT128'
 928 endif
 929
 930 # TODO: this is very incomplete
 931 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 932   pre_args += '-D_GNU_SOURCE'
 933 elif host_machine.system() == 'sunos'
 934   pre_args += '-D__EXTENSIONS__'
 935 elif host_machine.system() == 'windows'
 936   pre_args += [
 937     '-D_WINDOWS', '-D_WIN32_WINNT=0x0A00', '-DWINVER=0x0A00',
 938     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 939     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 940   ]
 941   if cc.get_id() == 'msvc'
 942     pre_args += [
 943       '-DVC_EXTRALEAN',
 944       '-D_CRT_SECURE_NO_WARNINGS',
 945       '-D_CRT_SECURE_NO_DEPRECATE',
 946       '-D_SCL_SECURE_NO_WARNINGS',
 947       '-D_SCL_SECURE_NO_DEPRECATE',
 948       '-D_ALLOW_KEYWORD_MACROS',
 949       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 950     ]
 951   else
 952     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 953   endif
 954 elif host_machine.system() == 'openbsd'
 955   pre_args += '-D_ISOC11_SOURCE'
 956 endif
 957
 958 # Check for generic C arguments
 959 c_args = []
 960 c_msvc_compat_args = []
 961 no_override_init_args = []
 962 cpp_args = []
 963 cpp_msvc_compat_args = []
 964 if cc.get_id() == 'msvc'
 965   foreach a : ['/wd4018',  # signed/unsigned mismatch
 966                '/wd4056',  # overflow in floating-point constant arithmetic
 967                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 968                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 969                '/wd4305',  # trancation from 'type1' to 'type2'
 970                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 971                '/wd4756',  # overflow in constant arithmetic
 972                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 973                '/wd4996',  # disabled deprecated POSIX name warnings
 974                '/wd4291',  # no matching operator delete found
 975                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 976                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 977                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 978                '/wd4309',  # 'initializing': truncation of constant value
 979                '/wd4838',  # conversion from 'int' to 'const char' requires a narrowing conversion
 980                '/we4020',  # Error when passing the wrong number of parameters
 981                '/we4024',  # Error when passing different type of parameter
 982               ]
 983     if cc.has_argument(a)
 984       c_args += a
 985     endif
 986     if cpp.has_argument(a)
 987       cpp_args += a
 988     endif
 989   endforeach
 990   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
 991     c_args += '-Wno-microsoft-enum-value'
 992     cpp_args += '-Wno-microsoft-enum-value'
 993   endif
 994 else
 995   _trial = [
 996     '-Werror=implicit-function-declaration',
 997     '-Werror=missing-prototypes',
 998     '-Werror=return-type',
 999     '-Werror=empty-body',
1000     '-Werror=incompatible-pointer-types',
1001     '-Werror=int-conversion',
1002     '-Wimplicit-fallthrough',
1003     '-Wno-missing-field-initializers',
1004     '-Wno-format-truncation',
1005     '-fno-math-errno',
1006     '-fno-trapping-math',
1007     '-Qunused-arguments',
1008     '-fno-common',
1009   ]
1010   # MinGW chokes on format specifiers and I can't get it all working
1011   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1012     _trial += ['-Werror=format', '-Wformat-security']
1013   endif
1014   foreach a : _trial
1015     if cc.has_argument(a)
1016       c_args += a
1017     endif
1018   endforeach
1019
1020   _trial = [
1021     '-Werror=return-type',
1022     '-Werror=empty-body',
1023     '-Wno-non-virtual-dtor',
1024     '-Wno-missing-field-initializers',
1025     '-Wno-format-truncation',
1026     '-fno-math-errno',
1027     '-fno-trapping-math',
1028     '-Qunused-arguments',
1029     # Some classes use custom new operator which zeroes memory, however
1030     # gcc does aggressive dead-store elimination which threats all writes
1031     # to the memory before the constructor as "dead stores".
1032     # For now we disable this optimization.
1033     '-flifetime-dse=1',
1034   ]
1035   # MinGW chokes on format specifiers and I can't get it all working
1036   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1037     _trial += ['-Werror=format', '-Wformat-security']
1038   endif
1039   foreach a : _trial
1040     if cpp.has_argument(a)
1041       cpp_args += a
1042     endif
1043   endforeach
1044
1045   foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
1046     if cc.has_argument(a)
1047       no_override_init_args += a
1048     endif
1049   endforeach
1050
1051   # Check for C and C++ arguments for MSVC compatibility. These are only used
1052   # in parts of the mesa code base that need to compile with MSVC, mainly
1053   # common code
1054   foreach a : ['-Werror=pointer-arith', '-Werror=vla', '-Werror=gnu-empty-initializer']
1055     if cc.has_argument(a)
1056       c_msvc_compat_args += a
1057     endif
1058     if cpp.has_argument(a)
1059       cpp_msvc_compat_args += a
1060     endif
1061   endforeach
1062 endif
1063
1064 # set linker arguments
1065 if host_machine.system() == 'windows'
1066   if cc.get_id() == 'msvc'
1067     add_project_link_arguments(
1068       '/fixed:no',
1069       '/dynamicbase',
1070       '/nxcompat',
1071       language : ['c', 'cpp'],
1072     )
1073     if get_option('buildtype') != 'debug'
1074       add_project_link_arguments(
1075         '/incremental:no',
1076         language : ['c', 'cpp'],
1077       )
1078     endif
1079   else
1080     add_project_link_arguments(
1081       '-Wl,--nxcompat',
1082       '-Wl,--dynamicbase',
1083       '-static-libgcc',
1084       '-static-libstdc++',
1085       language : ['c', 'cpp'],
1086     )
1087   endif
1088 endif
1089
1090 if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1091   pre_args += '-DUSE_SSE41'
1092   with_sse41 = true
1093   sse41_args = ['-msse4.1']
1094
1095   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1096   # that's not guaranteed
1097   if host_machine.cpu_family() == 'x86'
1098     sse41_args += '-mstackrealign'
1099   endif
1100 else
1101   with_sse41 = false
1102   sse41_args = []
1103 endif
1104
1105 # Check for GCC style atomics
1106 dep_atomic = null_dep
1107
1108 if cc.compiles('''#include <stdint.h>
1109                   int main() {
1110                     struct {
1111                       uint64_t *v;
1112                     } x;
1113                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1114                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1115
1116                   }''',
1117                name : 'GCC atomic builtins')
1118   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1119
1120   # Not all atomic calls can be turned into lock-free instructions, in which
1121   # GCC will make calls into the libatomic library. Check whether we need to
1122   # link with -latomic.
1123   #
1124   # This can happen for 64-bit atomic operations on 32-bit architectures such
1125   # as ARM.
1126   if not cc.links('''#include <stdint.h>
1127                      int main() {
1128                        struct {
1129                          uint64_t *v;
1130                        } x;
1131                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1132                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1133                      }''',
1134                   name : 'GCC atomic builtins required -latomic')
1135     dep_atomic = cc.find_library('atomic')
1136   endif
1137 endif
1138 if not cc.links('''#include <stdint.h>
1139                    uint64_t v;
1140                    int main() {
1141                      return __sync_add_and_fetch(&v, (uint64_t)1);
1142                    }''',
1143                 dependencies : dep_atomic,
1144                 name : 'GCC 64bit atomics')
1145   pre_args += '-DMISSING_64BIT_ATOMICS'
1146 endif
1147
1148 dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1149
1150 # TODO: shared/static? Is this even worth doing?
1151
1152 with_asm_arch = ''
1153 if host_machine.cpu_family() == 'x86'
1154   if system_has_kms_drm or host_machine.system() == 'gnu'
1155     with_asm_arch = 'x86'
1156     pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1157                  '-DUSE_SSE_ASM']
1158
1159     if with_glx_read_only_text
1160       pre_args += ['-DGLX_X86_READONLY_TEXT']
1161     endif
1162   endif
1163 elif host_machine.cpu_family() == 'x86_64'
1164   if system_has_kms_drm
1165     with_asm_arch = 'x86_64'
1166     pre_args += ['-DUSE_X86_64_ASM']
1167   endif
1168 elif host_machine.cpu_family() == 'arm'
1169   if system_has_kms_drm
1170     with_asm_arch = 'arm'
1171     pre_args += ['-DUSE_ARM_ASM']
1172   endif
1173 elif host_machine.cpu_family() == 'aarch64'
1174   if system_has_kms_drm
1175     with_asm_arch = 'aarch64'
1176     pre_args += ['-DUSE_AARCH64_ASM']
1177   endif
1178 elif host_machine.cpu_family() == 'sparc64'
1179   if system_has_kms_drm
1180     with_asm_arch = 'sparc'
1181     pre_args += ['-DUSE_SPARC_ASM']
1182   endif
1183 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1184   if system_has_kms_drm
1185     with_asm_arch = 'ppc64le'
1186     pre_args += ['-DUSE_PPC64LE_ASM']
1187   endif
1188 endif
1189
1190 # Check for standard headers and functions
1191 if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1192   cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1193   cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1194   pre_args += '-DMAJOR_IN_SYSMACROS'
1195 endif
1196 if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1197   cc.has_header_symbol('sys/mkdev.h', 'minor') and
1198   cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1199   pre_args += '-DMAJOR_IN_MKDEV'
1200 endif
1201
1202 if not ['linux'].contains(host_machine.system())
1203   # Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1204   if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1205     pre_args += '-DHAVE_SYS_SYSCTL_H'
1206   endif
1207 endif
1208
1209 foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h', 'pthread_np.h']
1210   if cc.check_header(h)
1211     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1212   endif
1213 endforeach
1214
1215 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r', 'getrandom']
1216   if cc.has_function(f)
1217     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1218   endif
1219 endforeach
1220
1221 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1222                         args : '-D_GNU_SOURCE')
1223    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1224 elif with_tools.contains('intel')
1225   error('Intel tools require the program_invocation_name variable')
1226 endif
1227
1228 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1229 # This means that this check will succeed, but then compilation will later
1230 # fail. MSVC doesn't have this function at all, so only check for it on
1231 # non-windows platforms.
1232 if host_machine.system() != 'windows'
1233   if cc.has_function('posix_memalign')
1234     pre_args += '-DHAVE_POSIX_MEMALIGN'
1235   endif
1236 endif
1237
1238 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1239    #include <dirent.h>''')
1240    pre_args += '-DHAVE_DIRENT_D_TYPE'
1241 endif
1242
1243 # strtod locale support
1244 if cc.links('''
1245     #define _GNU_SOURCE
1246     #include <stdlib.h>
1247     #include <locale.h>
1248     #ifdef HAVE_XLOCALE_H
1249     #include <xlocale.h>
1250     #endif
1251     int main() {
1252       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1253       const char *s = "1.0";
1254       char *end;
1255       double d = strtod_l(s, end, loc);
1256       float f = strtof_l(s, end, loc);
1257       freelocale(loc);
1258       return 0;
1259     }''',
1260     args : pre_args,
1261     name : 'strtod has locale support')
1262   pre_args += '-DHAVE_STRTOD_L'
1263 endif
1264
1265 # Check for some linker flags
1266 ld_args_bsymbolic = []
1267 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1268   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1269 endif
1270 ld_args_gc_sections = []
1271 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1272             args : '-Wl,--gc-sections', name : 'gc-sections')
1273   ld_args_gc_sections += '-Wl,--gc-sections'
1274 endif
1275 with_ld_version_script = false
1276 if cc.links('int main() { return 0; }',
1277             args : '-Wl,--version-script=@0@'.format(
1278               join_paths(meson.source_root(), 'build-support/conftest.map')),
1279             name : 'version-script')
1280   with_ld_version_script = true
1281 endif
1282 with_ld_dynamic_list = false
1283 if cc.links('int main() { return 0; }',
1284             args : '-Wl,--dynamic-list=@0@'.format(
1285               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1286             name : 'dynamic-list')
1287   with_ld_dynamic_list = true
1288 endif
1289
1290 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1291
1292 # check for dl support
1293 dep_dl = null_dep
1294 if not cc.has_function('dlopen')
1295   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1296 endif
1297 if cc.has_function('dladdr', dependencies : dep_dl)
1298   # This is really only required for megadrivers
1299   pre_args += '-DHAVE_DLADDR'
1300 endif
1301
1302 if cc.has_function('dl_iterate_phdr')
1303   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1304 elif with_intel_vk
1305   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1306 elif with_dri_i965 and with_shader_cache
1307   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1308 endif
1309
1310 # Determine whether or not the rt library is needed for time functions
1311 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1312   dep_clock = null_dep
1313 else
1314   dep_clock = cc.find_library('rt')
1315 endif
1316
1317 # TODO: some of these may be conditional
1318 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1319 pre_args += '-DHAVE_ZLIB'
1320
1321 _zstd = get_option('zstd')
1322 if _zstd == 'true'
1323   _zstd = 'enabled'
1324   warning('zstd option "true" deprecated, please use "enabled" instead.')
1325 elif _zstd == 'false'
1326   _zstd = 'disabled'
1327   warning('zstd option "false" deprecated, please use "disabled" instead.')
1328 endif
1329 if _zstd != 'disabled'
1330   dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1331   if dep_zstd.found()
1332     pre_args += '-DHAVE_ZSTD'
1333   endif
1334 else
1335   dep_zstd = null_dep
1336 endif
1337
1338 dep_thread = dependency('threads')
1339 if dep_thread.found() and host_machine.system() != 'windows'
1340   pre_args += '-DHAVE_PTHREAD'
1341   if cc.has_function(
1342       'pthread_setaffinity_np',
1343       dependencies : dep_thread,
1344       prefix : '#include <pthread.h>',
1345       args : '-D_GNU_SOURCE')
1346     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1347   endif
1348 endif
1349 if host_machine.system() != 'windows'
1350   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1351 else
1352   dep_expat = null_dep
1353 endif
1354 # this only exists on linux so either this is linux and it will be found, or
1355 # it's not linux and wont
1356 dep_m = cc.find_library('m', required : false)
1357
1358 # Check for libdrm. Various drivers have different libdrm version requirements,
1359 # but we always want to use the same version for all libdrm modules. That means
1360 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1361 # bar are both on use 2.4.3 for both of them
1362 dep_libdrm_amdgpu = null_dep
1363 dep_libdrm_radeon = null_dep
1364 dep_libdrm_nouveau = null_dep
1365 dep_libdrm_intel = null_dep
1366
1367 _drm_amdgpu_ver = '2.4.100'
1368 _drm_radeon_ver = '2.4.71'
1369 _drm_nouveau_ver = '2.4.102'
1370 _drm_intel_ver = '2.4.75'
1371 _drm_ver = '2.4.81'
1372
1373 _libdrm_checks = [
1374   ['intel', with_dri_i915 or with_gallium_i915],
1375   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1376   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1377               with_gallium_r300 or with_gallium_r600)],
1378   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1379 ]
1380
1381 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1382 # library.
1383 if with_gallium_vc4
1384   _drm_ver = '2.4.89'
1385 endif
1386
1387 # etnaviv only needs core libdrm
1388 if with_gallium_etnaviv
1389   _drm_ver = '2.4.89'
1390 endif
1391
1392 # Loop over the enables versions and get the highest libdrm requirement for all
1393 # active drivers.
1394 _drm_blame = ''
1395 foreach d : _libdrm_checks
1396   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1397   if d[1] and ver.version_compare('>' + _drm_ver)
1398     _drm_ver = ver
1399     _drm_blame = d[0]
1400   endif
1401 endforeach
1402 if _drm_blame != ''
1403   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1404 endif
1405
1406 # Then get each libdrm module
1407 foreach d : _libdrm_checks
1408   if d[1]
1409     set_variable(
1410       'dep_libdrm_' + d[0],
1411       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1412     )
1413   endif
1414 endforeach
1415
1416 with_gallium_drisw_kms = false
1417 dep_libdrm = dependency(
1418   'libdrm', version : '>=' + _drm_ver,
1419   # GNU/Hurd includes egl_dri2, without drm.
1420   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1421 )
1422 if dep_libdrm.found()
1423   pre_args += '-DHAVE_LIBDRM'
1424   if with_dri_platform == 'drm' and with_dri
1425     with_gallium_drisw_kms = true
1426   endif
1427 endif
1428
1429 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1430 llvm_optional_modules = ['coroutines']
1431 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1432   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1433   if with_gallium_r600
1434     llvm_modules += 'asmparser'
1435   endif
1436 endif
1437 if with_gallium_opencl
1438   llvm_modules += [
1439     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1440     'lto', 'option', 'objcarcopts', 'profiledata',
1441   ]
1442 endif
1443
1444 with_opencl_spirv = _opencl != 'disabled' and get_option('opencl-spirv')
1445 if with_amd_vk or with_gallium_radeonsi or with_opencl_spirv
1446   _llvm_version = '>= 8.0.0'
1447 elif with_gallium_swr
1448   _llvm_version = '>= 6.0.0'
1449 else
1450   _llvm_version = '>= 3.9.0'
1451 endif
1452
1453 _shared_llvm = get_option('shared-llvm')
1454 if _shared_llvm == 'true'
1455   _shared_llvm = 'enabled'
1456   warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1457 elif _shared_llvm == 'false'
1458   _shared_llvm = 'disabled'
1459   warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1460 endif
1461 if _shared_llvm == 'auto'
1462   _shared_llvm = (host_machine.system() != 'windows')
1463 else
1464   _shared_llvm = (_shared_llvm == 'enabled')
1465 endif
1466 _llvm = get_option('llvm')
1467 if _llvm == 'true'
1468   _llvm = 'enabled'
1469   warning('llvm option "true" deprecated, please use "enabled" instead.')
1470 elif _llvm == 'false'
1471   _llvm = 'disabled'
1472   warning('llvm option "false" deprecated, please use "disabled" instead.')
1473 endif
1474
1475 # the cmake method can only link statically, so don't attempt to use it if we
1476 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1477 # linking is requested, so we need to force the config-tool method to be used
1478 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1479 # linking is requested.
1480 _llvm_method = 'auto'
1481 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1482   _llvm_method = 'config-tool'
1483 endif
1484
1485 dep_llvm = null_dep
1486 with_llvm = false
1487 if _llvm != 'disabled'
1488   dep_llvm = dependency(
1489     'llvm',
1490     version : _llvm_version,
1491     modules : llvm_modules,
1492     optional_modules : llvm_optional_modules,
1493     required : (
1494       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1495       with_gallium_opencl or _llvm == 'enabled'
1496     ),
1497     static : not _shared_llvm,
1498     method : _llvm_method,
1499     fallback : ['llvm', 'dep_llvm'],
1500   )
1501   with_llvm = dep_llvm.found()
1502 endif
1503 if with_llvm
1504   pre_args += '-DLLVM_AVAILABLE'
1505   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1506   pre_args += '-DLLVM_IS_SHARED=@0@'.format(_shared_llvm.to_int())
1507
1508   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1509   # programs, so we need to build all C++ code in mesa without rtti as well to
1510   # ensure that linking works.
1511   #
1512   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1513   # builtin llvm-config based finder. A new generic variable getter method
1514   # has also been added, so we'll use that if we can, to cover the cmake case.
1515   if dep_llvm.type_name() == 'internal'
1516     _rtti = subproject('llvm').get_variable('has_rtti', true)
1517   else
1518     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1519     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1520   endif
1521   if not _rtti
1522     if with_gallium_nouveau
1523       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1524     elif with_gallium_opencl
1525       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1526     endif
1527     if cc.get_id() == 'msvc'
1528       cpp_args += '/GR-'
1529     else
1530       cpp_args += '-fno-rtti'
1531     endif
1532   endif
1533 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1534   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1535 elif with_gallium_opencl
1536   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1537 endif
1538
1539 if with_opencl_spirv
1540   chosen_llvm_version_array = dep_llvm.version().split('.')
1541   chosen_llvm_version_major = chosen_llvm_version_array[0].to_int()
1542   chosen_llvm_version_minor = chosen_llvm_version_array[1].to_int()
1543
1544   # Require an SPIRV-LLVM-Translator version compatible with the chosen LLVM
1545   # one.
1546   _llvmspirvlib_version = [
1547     # This first version check is still needed as maybe LLVM 8.0 was picked but
1548     # we do not want to accept SPIRV-LLVM-Translator 8.0.0.1 as that version does
1549     # not have the required API and those are only available starting from
1550     # 8.0.1.3.
1551     '>= 8.0.1.3',
1552     '>= @0@.@1@'.format(chosen_llvm_version_major, chosen_llvm_version_minor),
1553     '< @0@.@1@'.format(chosen_llvm_version_major, chosen_llvm_version_minor + 1) ]
1554
1555   dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
1556   # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
1557   dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : _llvmspirvlib_version)
1558 else
1559   dep_spirv_tools = null_dep
1560   dep_llvmspirvlib = null_dep
1561 endif
1562
1563 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1564     (with_gallium_r600 and with_llvm))
1565   dep_elf = dependency('libelf', required : false)
1566   if not dep_elf.found()
1567     dep_elf = cc.find_library('elf')
1568   endif
1569 else
1570   dep_elf = null_dep
1571 endif
1572
1573 dep_glvnd = null_dep
1574 if with_glvnd
1575   dep_glvnd = dependency('libglvnd', version : '>= 1.3.2')
1576   pre_args += '-DUSE_LIBGLVND=1'
1577 endif
1578
1579 _valgrind = get_option('valgrind')
1580 if _valgrind == 'true'
1581   _valgrind = 'enabled'
1582   warning('valgrind option "true" deprecated, please use "enabled" instead.')
1583 elif _valgrind == 'false'
1584   _valgrind = 'disabled'
1585   warning('valgrind option "false" deprecated, please use "disabled" instead.')
1586 endif
1587 if _valgrind != 'disabled'
1588   dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1589   if dep_valgrind.found()
1590     pre_args += '-DHAVE_VALGRIND'
1591   endif
1592 else
1593   dep_valgrind = null_dep
1594 endif
1595
1596 # pthread stubs. Lets not and say we didn't
1597
1598 if host_machine.system() == 'windows'
1599   # Prefer the winflexbison versions, they're much easier to install and have
1600   # better windows support.
1601
1602   prog_flex = find_program('win_flex', required : false)
1603   if prog_flex.found()
1604     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1605     # _fileno functions)
1606     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1607   else
1608     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1609   endif
1610   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1611   # __STDC__ macro to determine whether it's safe to use const keyword, but
1612   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1613   prog_flex += '-DYY_USE_CONST='
1614
1615   prog_bison = find_program('win_bison', required : false)
1616   if not prog_bison.found()
1617     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1618   endif
1619 else
1620   prog_bison = find_program('bison', required : with_any_opengl)
1621
1622   # Disable deprecated keyword warnings, since we have to use them for
1623   # old-bison compat.  See discussion in
1624   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1625   if find_program('bison', required : false, version : '> 2.3').found()
1626     prog_bison = [prog_bison, '-Wno-deprecated']
1627   endif
1628
1629   prog_flex = find_program('flex', required : with_any_opengl)
1630 endif
1631
1632 dep_selinux = null_dep
1633 if get_option('selinux')
1634   dep_selinux = dependency('libselinux')
1635   pre_args += '-DMESA_SELINUX'
1636 endif
1637
1638 _libunwind = get_option('libunwind')
1639 if _libunwind == 'true'
1640   _libunwind = 'enabled'
1641   warning('libunwind option "true" deprecated, please use "enabled" instead.')
1642 elif _libunwind == 'false'
1643   _libunwind = 'disabled'
1644   warning('libunwind option "false" deprecated, please use "disabled" instead.')
1645 endif
1646 if _libunwind != 'disabled'
1647   dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1648   if dep_unwind.found()
1649     pre_args += '-DHAVE_LIBUNWIND'
1650   endif
1651 else
1652   dep_unwind = null_dep
1653 endif
1654
1655 if with_osmesa != 'none'
1656   if with_osmesa == 'gallium' and not with_gallium_softpipe
1657     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1658   endif
1659   if host_machine.system() == 'windows'
1660     osmesa_lib_name = 'osmesa'
1661   else
1662     osmesa_lib_name = 'OSMesa'
1663   endif
1664   osmesa_bits = get_option('osmesa-bits')
1665   if osmesa_bits != '8'
1666     if with_dri or with_glx != 'disabled'
1667       error('OSMesa bits must be 8 if building glx or dri based drivers')
1668     endif
1669     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1670     pre_args += [
1671       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1672     ]
1673   endif
1674 endif
1675
1676 # TODO: symbol mangling
1677
1678 if with_platform_wayland
1679   dep_wl_scanner = dependency('wayland-scanner', native: true)
1680   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1681   if dep_wl_scanner.version().version_compare('>= 1.15')
1682     wl_scanner_arg = 'private-code'
1683   else
1684     wl_scanner_arg = 'code'
1685   endif
1686   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1687   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1688   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1689   if with_egl
1690     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1691     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1692   endif
1693   wayland_dmabuf_xml = join_paths(
1694     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1695     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1696   )
1697   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1698 endif
1699
1700 dep_x11 = null_dep
1701 dep_xext = null_dep
1702 dep_xdamage = null_dep
1703 dep_xfixes = null_dep
1704 dep_x11_xcb = null_dep
1705 dep_xcb = null_dep
1706 dep_xcb_glx = null_dep
1707 dep_xcb_dri2 = null_dep
1708 dep_xcb_dri3 = null_dep
1709 dep_dri2proto = null_dep
1710 dep_glproto = null_dep
1711 dep_xxf86vm = null_dep
1712 dep_xcb_dri3 = null_dep
1713 dep_xcb_present = null_dep
1714 dep_xcb_sync = null_dep
1715 dep_xcb_xfixes = null_dep
1716 dep_xshmfence = null_dep
1717 dep_xcb_xrandr = null_dep
1718 dep_xcb_shm = null_dep
1719 dep_xlib_xrandr = null_dep
1720 if with_platform_x11
1721   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1722     dep_x11 = dependency('x11')
1723     dep_xext = dependency('xext')
1724     dep_xcb = dependency('xcb')
1725   elif with_glx == 'dri'
1726     dep_x11 = dependency('x11')
1727     dep_xext = dependency('xext')
1728     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1729     dep_xfixes = dependency('xfixes', version : '>= 2.0')
1730     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1731     dep_xcb_shm = dependency('xcb-shm')
1732   endif
1733   if (with_any_vk or with_glx == 'dri' or with_egl or
1734        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1735         with_gallium_omx != 'disabled'))
1736     dep_xcb = dependency('xcb')
1737     dep_x11_xcb = dependency('x11-xcb')
1738     if with_dri_platform == 'drm' and not dep_libdrm.found()
1739       error('libdrm required for gallium video statetrackers when using x11')
1740     endif
1741   endif
1742   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1743     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1744
1745     if with_dri3
1746       pre_args += '-DHAVE_DRI3'
1747       dep_xcb_dri3 = dependency('xcb-dri3')
1748       dep_xcb_present = dependency('xcb-present')
1749       # until xcb-dri3 has been around long enough to make a hard-dependency:
1750       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1751           dep_xcb_present.version().version_compare('>= 1.13'))
1752         pre_args += '-DHAVE_DRI3_MODIFIERS'
1753       endif
1754       dep_xcb_sync = dependency('xcb-sync')
1755       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1756     endif
1757   endif
1758   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1759     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1760   endif
1761   if with_glx == 'dri'
1762     if with_dri_platform == 'drm'
1763       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1764       dep_xxf86vm = dependency('xxf86vm')
1765     endif
1766   endif
1767   if (with_egl or (
1768       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1769       with_gallium_omx != 'disabled'))
1770     dep_xcb_xfixes = dependency('xcb-xfixes')
1771   endif
1772   if with_xlib_lease
1773     dep_xcb_xrandr = dependency('xcb-randr')
1774     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1775   endif
1776 endif
1777
1778 if get_option('gallium-extra-hud')
1779   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1780 endif
1781
1782 _sensors = get_option('lmsensors')
1783 if _sensors == 'true'
1784   _sensors = 'enabled'
1785   warning('lmsensors option "true" deprecated, please use "enabled" instead.')
1786 elif _sensors == 'false'
1787   _sensors = 'disabled'
1788   warning('lmsensors option "false" deprecated, please use "disabled" instead.')
1789 endif
1790 if _sensors != 'disabled'
1791   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
1792   if dep_lmsensors.found()
1793     pre_args += '-DHAVE_LIBSENSORS=1'
1794   endif
1795 else
1796   dep_lmsensors = null_dep
1797 endif
1798
1799 # If the compiler supports it, put function and data symbols in their
1800 # own sections and GC the sections after linking.  This lets drivers
1801 # drop shared code unused by that specific driver (particularly
1802 # relevant for Vulkan drivers).
1803 if cc.has_link_argument('-Wl,--gc-sections')
1804   add_project_arguments('-Wl,--gc-sections', language : ['c', 'cpp'])
1805   foreach a: ['-ffunction-sections', '-fdata-sections']
1806     if cc.has_argument(a)
1807       add_project_arguments(a, language : ['c', 'cpp'])
1808     endif
1809   endforeach
1810 endif
1811
1812 foreach a : pre_args
1813   add_project_arguments(a, language : ['c', 'cpp'])
1814 endforeach
1815 foreach a : c_args
1816   add_project_arguments(a, language : ['c'])
1817 endforeach
1818 foreach a : cpp_args
1819   add_project_arguments(a, language : ['cpp'])
1820 endforeach
1821
1822 gl_priv_reqs = []
1823
1824 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1825   gl_priv_reqs += ['x11', 'xext', 'xcb']
1826 elif with_glx == 'dri'
1827   gl_priv_reqs += [
1828     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1829     'xcb-glx >= 1.8.1']
1830   if with_dri_platform == 'drm'
1831     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1832     gl_priv_reqs += 'xxf86vm'
1833   endif
1834 endif
1835 if dep_libdrm.found()
1836   gl_priv_reqs += 'libdrm >= 2.4.75'
1837 endif
1838
1839 gl_priv_libs = []
1840 if dep_thread.found()
1841   gl_priv_libs += ['-lpthread', '-pthread']
1842 endif
1843 if dep_m.found()
1844   gl_priv_libs += '-lm'
1845 endif
1846 if dep_dl.found()
1847   gl_priv_libs += '-ldl'
1848 endif
1849
1850 # FIXME: autotools lists this as incomplete
1851 gbm_priv_libs = []
1852 if dep_dl.found()
1853   gbm_priv_libs += '-ldl'
1854 endif
1855
1856 pkg = import('pkgconfig')
1857
1858 if host_machine.system() == 'windows'
1859   prog_dumpbin = find_program('dumpbin', required : false)
1860   with_symbols_check = prog_dumpbin.found() and with_tests
1861   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1862 else
1863   prog_nm = find_program('nm')
1864   with_symbols_check = with_tests
1865   symbols_check_args = ['--nm', prog_nm.path()]
1866 endif
1867
1868 # This quirk needs to be applied to sources with functions defined in assembly
1869 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1870 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1871
1872 subdir('include')
1873 subdir('bin')
1874 subdir('src')
1875
1876 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1877 # formatting below unless the first argument is passed as a variable. This has
1878 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1879 # for backwards compatibility.
1880 _with_opengl_string = with_opengl ? 'yes' : 'no'
1881
1882 lines = ['',
1883   'prefix:          ' + get_option('prefix'),
1884   'libdir:          ' + get_option('libdir'),
1885   'includedir:      ' + get_option('includedir'),
1886   '',
1887   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1888                                                     with_gles1 ? 'yes' : 'no',
1889                                                     with_gles2 ? 'yes' : 'no'),
1890 ]
1891
1892 if with_osmesa != 'none'
1893   lines += ''
1894   suffix = ''
1895   if with_osmesa == 'gallium'
1896     suffix = '(Gallium)'
1897   endif
1898   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1899 else
1900   lines += 'OSMesa:          no'
1901 endif
1902
1903 if with_dri
1904   lines += ''
1905   lines += 'DRI platform:    ' + with_dri_platform
1906   if dri_drivers.length() != 0 and dri_drivers != ['']
1907     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1908   else
1909     lines += 'DRI drivers:     no'
1910   endif
1911   lines += 'DRI driver dir:  ' + dri_drivers_path
1912 endif
1913
1914 if with_glx != 'disabled'
1915   lines += ''
1916   if with_glx == 'dri'
1917     lines += 'GLX:             DRI-based'
1918   elif with_glx == 'xlib'
1919     lines += 'GLX:             Xlib-based'
1920   elif with_glx == 'gallium-xlib'
1921     lines += 'GLX:             Xlib-based (Gallium)'
1922   else
1923     lines += 'GLX:             ' + with_glx
1924   endif
1925 endif
1926
1927 lines += ''
1928 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1929 if with_egl
1930   egl_drivers = []
1931   if with_dri
1932     egl_drivers += 'builtin:egl_dri2'
1933   endif
1934   if with_dri3
1935     egl_drivers += 'builtin:egl_dri3'
1936   endif
1937   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1938 endif
1939 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1940 if with_egl or with_any_vk
1941   _platforms += 'surfaceless'
1942   if with_gbm
1943     _platforms += 'drm'
1944   endif
1945   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1946 endif
1947
1948 lines += ''
1949 if with_any_vk
1950   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1951   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1952 else
1953   lines += 'Vulkan drivers:  no'
1954 endif
1955
1956 lines += ''
1957 if with_llvm
1958   lines += 'llvm:            yes'
1959   lines += 'llvm-version:    ' + dep_llvm.version()
1960 else
1961   lines += 'llvm:            no'
1962 endif
1963
1964 lines += ''
1965 if with_gallium
1966   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1967   gallium_st = ['mesa']
1968   if with_gallium_xa
1969     gallium_st += 'xa'
1970   endif
1971   if with_gallium_xvmc
1972     gallium_st += 'xvmc'
1973   endif
1974   if with_gallium_xvmc
1975     gallium_st += 'xvmc'
1976   endif
1977   if with_gallium_vdpau
1978     gallium_st += 'vdpau'
1979   endif
1980   if with_gallium_omx != 'disabled'
1981     gallium_st += 'omx' + with_gallium_omx
1982   endif
1983   if with_gallium_va
1984     gallium_st += 'va'
1985   endif
1986   if with_gallium_st_nine
1987     gallium_st += 'nine'
1988   endif
1989   if with_gallium_opencl
1990     gallium_st += 'clover'
1991   endif
1992   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1993 else
1994   lines += 'Gallium:         no'
1995 endif
1996
1997 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1998
1999 lines += ''
2000 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
2001
2002
2003 indent = '        '
2004 summary = indent + ('\n' + indent).join(lines)
2005 message('Configuration summary:\n@0@\n'.format(summary))