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_libresoc_vk = _vulkan_drivers.contains('libre-soc')
 266 with_swrast_vk = _vulkan_drivers.contains('swrast')
 267 with_any_vk = _vulkan_drivers.length() != 0
 268
 269 if with_swrast_vk and not with_gallium_softpipe
 270   error('swrast vulkan requires gallium swrast')
 271 endif
 272 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 273   error('Only one swrast provider can be built')
 274 endif
 275 if with_dri_i915 and with_gallium_i915
 276   error('Only one i915 provider can be built')
 277 endif
 278 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)
 279   error('kmsro driver requires one or more renderonly drivers (vc4, etnaviv, freedreno, panfrost, lima)')
 280 endif
 281 if with_gallium_tegra and not with_gallium_nouveau
 282   error('tegra driver requires nouveau driver')
 283 endif
 284 if with_aco_tests and not with_amd_vk
 285   error('ACO tests require Radv')
 286 endif
 287
 288 if host_machine.system() == 'darwin'
 289   with_dri_platform = 'apple'
 290   pre_args += '-DBUILDING_MESA'
 291 elif ['windows', 'cygwin'].contains(host_machine.system())
 292   with_dri_platform = 'windows'
 293 elif system_has_kms_drm
 294   with_dri_platform = 'drm'
 295 else
 296   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 297   # assert here that one of those cases has been met.
 298   # FIXME: illumos ends up here as well
 299   with_dri_platform = 'none'
 300 endif
 301
 302 _platforms = get_option('platforms')
 303 if _platforms.contains('auto')
 304   if system_has_kms_drm
 305     _platforms = ['x11', 'wayland']
 306   elif ['darwin', 'cygwin'].contains(host_machine.system())
 307     _platforms = ['x11']
 308   elif ['haiku'].contains(host_machine.system())
 309     _platforms = ['haiku']
 310   elif host_machine.system() == 'windows'
 311     _platforms = ['windows']
 312   else
 313     error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
 314           host_machine.system()))
 315   endif
 316 endif
 317
 318 with_platform_android = _platforms.contains('android')
 319 with_platform_x11 = _platforms.contains('x11')
 320 with_platform_wayland = _platforms.contains('wayland')
 321 with_platform_haiku = _platforms.contains('haiku')
 322 with_platform_windows = _platforms.contains('windows')
 323
 324 if _platforms.contains('surfaceless')
 325   warning('Platform `surfaceless` is now always selected; setting this option will be an error in Mesa 20.3')
 326 endif
 327
 328 if _platforms.contains('drm')
 329   warning('Platform `drm` is now automatically selected; setting this option will be an error in Mesa 20.3')
 330 endif
 331
 332 if _platforms.length() != 0
 333   egl_native_platform = _platforms[0]
 334 else
 335   egl_native_platform = 'surfaceless'
 336 endif
 337
 338 with_glx = get_option('glx')
 339 if with_glx == 'auto'
 340   if with_dri
 341     with_glx = 'dri'
 342   elif with_platform_haiku
 343     with_glx = 'disabled'
 344   elif host_machine.system() == 'windows'
 345     with_glx = 'disabled'
 346   elif with_gallium
 347     # Even when building just gallium drivers the user probably wants dri
 348     with_glx = 'dri'
 349   elif with_platform_x11 and with_any_opengl and not with_any_vk
 350     # The automatic behavior should not be to turn on xlib based glx when
 351     # building only vulkan drivers
 352     with_glx = 'xlib'
 353   else
 354     with_glx = 'disabled'
 355   endif
 356 endif
 357 if with_glx == 'dri'
 358    if with_gallium
 359       with_dri = true
 360    endif
 361 endif
 362
 363 if not (with_dri or with_gallium or with_glx != 'disabled')
 364   with_gles1 = false
 365   with_gles2 = false
 366   with_opengl = false
 367   with_any_opengl = false
 368   with_shared_glapi = false
 369 endif
 370
 371 _gbm = get_option('gbm')
 372 if _gbm == 'true'
 373   _gbm = 'enabled'
 374   warning('gbm option "true" deprecated, please use "enabled" instead.')
 375 elif _gbm == 'false'
 376   _gbm = 'disabled'
 377   warning('gbm option "false" deprecated, please use "disabled" instead.')
 378 endif
 379 if _gbm == 'auto'
 380   with_gbm = system_has_kms_drm and with_dri
 381 else
 382   with_gbm = _gbm == 'enabled'
 383 endif
 384 if with_gbm and not system_has_kms_drm
 385   error('GBM only supports DRM/KMS platforms')
 386 endif
 387
 388 _xlib_lease = get_option('xlib-lease')
 389 if _xlib_lease == 'true'
 390   _xlib_lease = 'enabled'
 391   warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
 392 elif _xlib_lease == 'false'
 393   _xlib_lease = 'disabled'
 394   warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
 395 endif
 396 if _xlib_lease == 'auto'
 397   with_xlib_lease = with_platform_x11 and system_has_kms_drm
 398 else
 399   with_xlib_lease = _xlib_lease == 'enabled'
 400 endif
 401
 402 _egl = get_option('egl')
 403 if _egl == 'true'
 404   _egl = 'enabled'
 405   warning('egl option "true" deprecated, please use "enabled" instead.')
 406 elif _egl == 'false'
 407   _egl = 'disabled'
 408   warning('egl option "false" deprecated, please use "disabled" instead.')
 409 endif
 410 if _egl == 'auto'
 411   with_egl = (
 412     not ['darwin', 'windows'].contains(host_machine.system()) and
 413     with_dri and with_shared_glapi
 414   )
 415 elif _egl == 'enabled'
 416   if not with_dri
 417     error('EGL requires dri')
 418   elif not with_shared_glapi
 419     error('EGL requires shared-glapi')
 420   elif not ['disabled', 'dri'].contains(with_glx)
 421     error('EGL requires dri, but a GLX is being built without dri')
 422   elif ['darwin', 'windows'].contains(host_machine.system())
 423     error('EGL is not available on Windows or MacOS')
 424   endif
 425   with_egl = true
 426 else
 427   with_egl = false
 428 endif
 429
 430 # Android uses emutls for versions <= P/28. For USE_ELF_TLS we need ELF TLS.
 431 use_elf_tls = false
 432 if not ['windows', 'freebsd', 'openbsd'].contains(host_machine.system()) and (not with_platform_android or get_option('platform-sdk-version') >= 29)
 433   pre_args += '-DUSE_ELF_TLS'
 434   use_elf_tls = true
 435 endif
 436
 437 if with_glx != 'disabled'
 438   if not (with_platform_x11 and with_any_opengl)
 439     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 440   elif with_glx == 'gallium-xlib'
 441     if not with_gallium
 442       error('Gallium-xlib based GLX requires at least one gallium driver')
 443     elif not with_gallium_softpipe
 444       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 445     elif with_dri
 446       error('gallium-xlib conflicts with any dri driver')
 447     endif
 448   elif with_glx == 'xlib'
 449     if with_dri
 450       error('xlib conflicts with any dri driver')
 451     endif
 452   elif with_glx == 'dri'
 453     if not with_shared_glapi
 454       error('dri based GLX requires shared-glapi')
 455     endif
 456   endif
 457 endif
 458
 459 with_glvnd = get_option('glvnd')
 460 if with_glvnd
 461   if with_platform_windows
 462     error('glvnd cannot be used on Windows')
 463   elif with_glx == 'xlib' or with_glx == 'gallium-xlib'
 464     error('Cannot build glvnd support for GLX that is not DRI based.')
 465   elif with_glx == 'disabled' and not with_egl
 466     error('glvnd requires DRI based GLX and/or EGL')
 467   endif
 468   if get_option('egl-lib-suffix') != ''
 469     error('''EGL lib suffix can't be used with libglvnd''')
 470   endif
 471 endif
 472
 473 if with_vulkan_icd_dir == ''
 474   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 475 endif
 476
 477 # GNU/Hurd includes egl_dri2, without drm.
 478 with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
 479   host_machine.system() == 'gnu')
 480 _dri3 = get_option('dri3')
 481 if _dri3 == 'true'
 482   _dri3 = 'enabled'
 483   warning('dri3 option "true" deprecated, please use "enabled" instead.')
 484 elif _dri3 == 'false'
 485   _dri3 = 'disabled'
 486   warning('dri3 option "false" deprecated, please use "disabled" instead.')
 487 endif
 488 if _dri3 == 'auto'
 489   with_dri3 = system_has_kms_drm and with_dri2
 490 else
 491   with_dri3 = _dri3 == 'enabled'
 492 endif
 493
 494 if with_any_vk and (with_platform_x11 and not with_dri3)
 495   error('Vulkan drivers require dri3 for X11 support')
 496 endif
 497 if with_dri
 498   if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'
 499     error('building dri drivers require at least one windowing system or classic osmesa')
 500   endif
 501 endif
 502
 503 _vdpau = get_option('gallium-vdpau')
 504 if _vdpau == 'true'
 505   _vdpau = 'enabled'
 506   warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
 507 elif _vdpau == 'false'
 508   _vdpau = 'disabled'
 509   warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
 510 endif
 511 if not system_has_kms_drm
 512   if _vdpau == 'enabled'
 513     error('VDPAU state tracker can only be build on unix-like OSes.')
 514   else
 515     _vdpau = 'disabled'
 516   endif
 517 elif not with_platform_x11
 518   if _vdpau == 'enabled'
 519     error('VDPAU state tracker requires X11 support.')
 520   else
 521     _vdpau = 'disabled'
 522   endif
 523 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 524           with_gallium_nouveau)
 525   if _vdpau == 'enabled'
 526     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 527   else
 528     _vdpau = 'disabled'
 529   endif
 530 endif
 531 dep_vdpau = null_dep
 532 with_gallium_vdpau = false
 533 if _vdpau != 'disabled'
 534   dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
 535   if dep_vdpau.found()
 536     dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
 537     with_gallium_vdpau = true
 538   endif
 539 endif
 540
 541 if with_gallium_vdpau
 542   pre_args += '-DHAVE_ST_VDPAU'
 543 endif
 544 vdpau_drivers_path = get_option('vdpau-libs-path')
 545 if vdpau_drivers_path == ''
 546   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 547 endif
 548
 549 if with_gallium_zink
 550   dep_vulkan = dependency('vulkan')
 551 endif
 552
 553 if with_vulkan_overlay_layer or with_aco_tests
 554   prog_glslang = find_program('glslangValidator')
 555 endif
 556
 557 _xvmc = get_option('gallium-xvmc')
 558 if _xvmc == 'true'
 559   _xvmc = 'enabled'
 560   warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
 561 elif _xvmc == 'false'
 562   _xvmc = 'disabled'
 563   warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
 564 endif
 565 if not system_has_kms_drm
 566   if _xvmc == 'enabled'
 567     error('XVMC state tracker can only be build on unix-like OSes.')
 568   else
 569     _xvmc = 'disabled'
 570   endif
 571 elif not with_platform_x11
 572   if _xvmc == 'enabled'
 573     error('XVMC state tracker requires X11 support.')
 574   else
 575     _xvmc = 'disabled'
 576   endif
 577 elif not (with_gallium_r600 or with_gallium_nouveau)
 578   if _xvmc == 'enabled'
 579     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 580   else
 581     _xvmc = 'disabled'
 582   endif
 583 endif
 584 dep_xvmc = null_dep
 585 dep_xv = null_dep
 586 with_gallium_xvmc = false
 587 if _xvmc != 'disabled'
 588   dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
 589   dep_xv = dependency('xv', required : _xvmc == 'enabled')
 590   with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
 591 endif
 592
 593 xvmc_drivers_path = get_option('xvmc-libs-path')
 594 if xvmc_drivers_path == ''
 595   xvmc_drivers_path = get_option('libdir')
 596 endif
 597
 598 _omx = get_option('gallium-omx')
 599 if not system_has_kms_drm
 600   if ['auto', 'disabled'].contains(_omx)
 601     _omx = 'disabled'
 602   else
 603     error('OMX state tracker can only be built on unix-like OSes.')
 604   endif
 605 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 606   if ['auto', 'disabled'].contains(_omx)
 607     _omx = 'disabled'
 608   else
 609     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 610   endif
 611 endif
 612 with_gallium_omx = _omx
 613 dep_omx = null_dep
 614 dep_omx_other = []
 615 if ['auto', 'bellagio'].contains(_omx)
 616   dep_omx = dependency(
 617     'libomxil-bellagio', required : _omx == 'bellagio'
 618   )
 619   if dep_omx.found()
 620     with_gallium_omx = 'bellagio'
 621   endif
 622 endif
 623 if ['auto', 'tizonia'].contains(_omx)
 624   if with_dri and with_egl
 625     dep_omx = dependency(
 626       'libtizonia', version : '>= 0.10.0',
 627       required : _omx == 'tizonia',
 628     )
 629     dep_omx_other = [
 630       dependency('libtizplatform', required : _omx == 'tizonia'),
 631       dependency('tizilheaders', required : _omx == 'tizonia'),
 632     ]
 633     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 634       with_gallium_omx = 'tizonia'
 635     endif
 636   elif _omx == 'tizonia'
 637     error('OMX-Tizonia state tracker requires dri and egl')
 638   endif
 639 endif
 640 if _omx == 'auto'
 641   with_gallium_omx = 'disabled'
 642 else
 643   with_gallium_omx = _omx
 644 endif
 645
 646 pre_args += [
 647   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 648   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 649 ]
 650
 651
 652 omx_drivers_path = get_option('omx-libs-path')
 653
 654 if with_gallium_omx != 'disabled'
 655   # Figure out where to put the omx driver.
 656   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 657   # argument to meson's get_pkgconfig_variable method.
 658   if omx_drivers_path == ''
 659     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 660     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 661     if _omx_libdir == get_option('libdir')
 662       omx_drivers_path = _omx_drivers_dir
 663     else
 664       _omx_base_dir = []
 665       # This will fail on windows. Does OMX run on windows?
 666       _omx_libdir = _omx_libdir.split('/')
 667       _omx_drivers_dir = _omx_drivers_dir.split('/')
 668       foreach o : _omx_drivers_dir
 669         if not _omx_libdir.contains(o)
 670           _omx_base_dir += o
 671         endif
 672       endforeach
 673       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 674     endif
 675   endif
 676 endif
 677
 678 _va = get_option('gallium-va')
 679 if _va == 'true'
 680   _va = 'enabled'
 681   warning('gallium-va option "true" deprecated, please use "enabled" instead.')
 682 elif _va == 'false'
 683   _va = 'disabled'
 684   warning('gallium-va option "false" deprecated, please use "disabled" instead.')
 685 endif
 686 if not system_has_kms_drm
 687   if _va == 'enabled'
 688     error('VA state tracker can only be built on unix-like OSes.')
 689   else
 690     _va = 'disabled'
 691   endif
 692 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 693   if _va == 'enabled'
 694     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 695   else
 696     _va = 'disabled'
 697   endif
 698 endif
 699 with_gallium_va = false
 700 dep_va = null_dep
 701 if _va != 'disabled'
 702   dep_va = dependency('libva', version : '>= 0.38.0', required : _va == 'enabled')
 703   if dep_va.found()
 704     dep_va_headers = dep_va.partial_dependency(compile_args : true)
 705     with_gallium_va = true
 706   endif
 707 endif
 708
 709 va_drivers_path = get_option('va-libs-path')
 710 if va_drivers_path == ''
 711   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 712 endif
 713
 714 _xa = get_option('gallium-xa')
 715 if _xa == 'true'
 716   _xa = 'enabled'
 717   warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
 718 elif _xa == 'false'
 719   _xa = 'disabled'
 720   warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
 721 endif
 722 if not system_has_kms_drm
 723   if _xa == 'enabled'
 724     error('XA state tracker can only be built on unix-like OSes.')
 725   else
 726     _xa = 'disabled'
 727   endif
 728 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 729           or with_gallium_svga)
 730   if _xa == 'enabled'
 731     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 732   else
 733     _xa = 'disabled'
 734   endif
 735 endif
 736 with_gallium_xa = _xa != 'disabled'
 737
 738 d3d_drivers_path = get_option('d3d-drivers-path')
 739 if d3d_drivers_path == ''
 740   d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
 741 endif
 742
 743 with_gallium_st_nine =  get_option('gallium-nine')
 744 if with_gallium_st_nine
 745   if not with_gallium_softpipe
 746     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 747   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 748             or with_gallium_r300 or with_gallium_svga or with_gallium_i915
 749             or with_gallium_iris)
 750     error('The nine state tracker requires at least one non-swrast gallium driver.')
 751   endif
 752   if not with_dri3
 753     error('Using nine with wine requires dri3')
 754   endif
 755 endif
 756 _power8 = get_option('power8')
 757 if _power8 == 'true'
 758   _power8 = 'enabled'
 759   warning('power8 option "true" deprecated, please use "enabled" instead.')
 760 elif _power8 == 'disabled'
 761   _power8 = 'disabled'
 762   warning('power8 option "false" deprecated, please use "disabled" instead.')
 763 endif
 764 if _power8 != 'disabled'
 765   # on old versions of meson the cpu family would return as ppc64le on little
 766   # endian power8, this was changed in 0.48 such that the family would always
 767   # be ppc64 regardless of endianness, and then the machine.endian() value
 768   # should be checked. Since we support versions < 0.48 we need to use
 769   # startswith.
 770   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
 771     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 772       error('Altivec is not supported with gcc version < 4.8.')
 773     endif
 774     if cc.compiles('''
 775         #include <altivec.h>
 776         int main() {
 777           vector unsigned char r;
 778           vector unsigned int v = vec_splat_u32 (1);
 779           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 780           return 0;
 781         }''',
 782         args : '-mpower8-vector',
 783         name : 'POWER8 intrinsics')
 784       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 785     elif get_option('power8') == 'enabled'
 786       error('POWER8 intrinsic support required but not found.')
 787     endif
 788   endif
 789 endif
 790
 791 _opencl = get_option('gallium-opencl')
 792 if _opencl != 'disabled'
 793   if not with_gallium
 794     error('OpenCL Clover implementation requires at least one gallium driver.')
 795   endif
 796
 797   dep_clc = dependency('libclc')
 798   with_gallium_opencl = true
 799   with_opencl_icd = _opencl == 'icd'
 800 else
 801   dep_clc = null_dep
 802   with_gallium_opencl = false
 803   with_opencl_icd = false
 804 endif
 805
 806 gl_pkgconfig_c_flags = []
 807 if with_platform_x11
 808   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 809     pre_args += '-DHAVE_X11_PLATFORM'
 810   endif
 811   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 812     pre_args += '-DUSE_XSHM'
 813   else
 814     pre_args += '-DGLX_INDIRECT_RENDERING'
 815     if with_glx_direct
 816       pre_args += '-DGLX_DIRECT_RENDERING'
 817     endif
 818     if with_dri_platform == 'drm'
 819       pre_args += '-DGLX_USE_DRM'
 820     elif with_dri_platform == 'apple'
 821       pre_args += '-DGLX_USE_APPLEGL'
 822     elif with_dri_platform == 'windows'
 823       pre_args += '-DGLX_USE_WINDOWSGL'
 824     endif
 825   endif
 826 else
 827   pre_args += '-DEGL_NO_X11'
 828   gl_pkgconfig_c_flags += '-DEGL_NO_X11'
 829 endif
 830 if with_gbm
 831   pre_args += '-DHAVE_DRM_PLATFORM'
 832 endif
 833
 834 with_android_stub = get_option('android-stub')
 835 if with_android_stub and not with_platform_android
 836   error('`-D android-stub=true` makes no sense without `-D platforms=android`')
 837 endif
 838
 839 if with_platform_android
 840   if not with_android_stub
 841     dep_android = [
 842       dependency('cutils'),
 843       dependency('hardware'),
 844       dependency('sync'),
 845       dependency('backtrace')
 846     ]
 847     if get_option('platform-sdk-version') >= 26
 848       dep_android += dependency('nativewindow')
 849     endif
 850   endif
 851   pre_args += [
 852     '-DHAVE_ANDROID_PLATFORM',
 853     '-DANDROID',
 854     '-DANDROID_API_LEVEL=' + get_option('platform-sdk-version').to_string()
 855   ]
 856 endif
 857 if with_platform_haiku
 858   pre_args += '-DHAVE_HAIKU_PLATFORM'
 859 endif
 860
 861 prog_python = import('python').find_installation('python3')
 862 has_mako = run_command(
 863   prog_python, '-c',
 864   '''
 865 from distutils.version import StrictVersion
 866 import mako
 867 assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
 868   ''')
 869 if has_mako.returncode() != 0
 870   error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
 871 endif
 872
 873 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 874   error('When using GCC, version 4.4.6 or later is required.')
 875 endif
 876
 877 # Support systems without ETIME (e.g. FreeBSD)
 878 if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
 879   pre_args += '-DETIME=ETIMEDOUT'
 880 endif
 881
 882 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 883 if get_option('buildtype') == 'debug'
 884   pre_args += '-DDEBUG'
 885 endif
 886
 887 with_shader_cache = false
 888 _shader_cache = get_option('shader-cache')
 889 if _shader_cache == 'true'
 890   _shader_cache = 'enabled'
 891   warning('shader_cache option "true" deprecated, please use "enabled" instead.')
 892 elif _shader_cache == 'false'
 893   _shader_cache = 'disabled'
 894   warning('shader_cache option "false" deprecated, please use "disabled" instead.')
 895 endif
 896 if _shader_cache != 'disabled'
 897   if host_machine.system() == 'windows'
 898     if _shader_cache == 'enabled'
 899       error('Shader Cache does not currently work on Windows')
 900     endif
 901   else
 902     pre_args += '-DENABLE_SHADER_CACHE'
 903     with_shader_cache = true
 904   endif
 905 endif
 906
 907 # Check for GCC style builtins
 908 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 909              'ffsll', 'popcount', 'popcountll', 'unreachable']
 910   if cc.has_function(b)
 911     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 912   endif
 913 endforeach
 914
 915 # check for GCC __attribute__
 916 _attributes = [
 917   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
 918   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
 919 ]
 920 foreach a : cc.get_supported_function_attributes(_attributes)
 921   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 922 endforeach
 923 if cc.has_function_attribute('visibility:hidden')
 924   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 925 endif
 926 if cc.compiles('__uint128_t foo(void) { return 0; }',
 927                name : '__uint128_t')
 928   pre_args += '-DHAVE_UINT128'
 929 endif
 930
 931 # TODO: this is very incomplete
 932 if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd'].contains(host_machine.system())
 933   pre_args += '-D_GNU_SOURCE'
 934 elif host_machine.system() == 'sunos'
 935   pre_args += '-D__EXTENSIONS__'
 936 elif host_machine.system() == 'windows'
 937   pre_args += [
 938     '-D_WINDOWS', '-D_WIN32_WINNT=0x0A00', '-DWINVER=0x0A00',
 939     '-DPIPE_SUBSYSTEM_WINDOWS_USER',
 940     '-D_USE_MATH_DEFINES',  # XXX: scons doesn't use this for mingw
 941   ]
 942   if cc.get_id() == 'msvc'
 943     pre_args += [
 944       '-DVC_EXTRALEAN',
 945       '-D_CRT_SECURE_NO_WARNINGS',
 946       '-D_CRT_SECURE_NO_DEPRECATE',
 947       '-D_SCL_SECURE_NO_WARNINGS',
 948       '-D_SCL_SECURE_NO_DEPRECATE',
 949       '-D_ALLOW_KEYWORD_MACROS',
 950       '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
 951     ]
 952   else
 953     pre_args += ['-D__MSVCRT_VERSION__=0x0700']
 954   endif
 955 elif host_machine.system() == 'openbsd'
 956   pre_args += '-D_ISOC11_SOURCE'
 957 endif
 958
 959 # Check for generic C arguments
 960 c_args = []
 961 c_msvc_compat_args = []
 962 no_override_init_args = []
 963 cpp_args = []
 964 cpp_msvc_compat_args = []
 965 if cc.get_id() == 'msvc'
 966   foreach a : ['/wd4018',  # signed/unsigned mismatch
 967                '/wd4056',  # overflow in floating-point constant arithmetic
 968                '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
 969                '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
 970                '/wd4305',  # trancation from 'type1' to 'type2'
 971                '/wd4351',  # new behavior: elements of array 'array' will be default initialized
 972                '/wd4756',  # overflow in constant arithmetic
 973                '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
 974                '/wd4996',  # disabled deprecated POSIX name warnings
 975                '/wd4291',  # no matching operator delete found
 976                '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
 977                '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
 978                '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
 979                '/wd4309',  # 'initializing': truncation of constant value
 980                '/wd4838',  # conversion from 'int' to 'const char' requires a narrowing conversion
 981                '/we4020',  # Error when passing the wrong number of parameters
 982                '/we4024',  # Error when passing different type of parameter
 983               ]
 984     if cc.has_argument(a)
 985       c_args += a
 986     endif
 987     if cpp.has_argument(a)
 988       cpp_args += a
 989     endif
 990   endforeach
 991   if cc.has_argument('-Wmicrosoft-enum-value')  # Clang
 992     c_args += '-Wno-microsoft-enum-value'
 993     cpp_args += '-Wno-microsoft-enum-value'
 994   endif
 995 else
 996   _trial = [
 997     '-Werror=implicit-function-declaration',
 998     '-Werror=missing-prototypes',
 999     '-Werror=return-type',
1000     '-Werror=empty-body',
1001     '-Werror=incompatible-pointer-types',
1002     '-Werror=int-conversion',
1003     '-Wimplicit-fallthrough',
1004     '-Wno-missing-field-initializers',
1005     '-Wno-format-truncation',
1006     '-fno-math-errno',
1007     '-fno-trapping-math',
1008     '-Qunused-arguments',
1009     '-fno-common',
1010   ]
1011   # MinGW chokes on format specifiers and I can't get it all working
1012   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1013     _trial += ['-Werror=format', '-Wformat-security']
1014   endif
1015   foreach a : _trial
1016     if cc.has_argument(a)
1017       c_args += a
1018     endif
1019   endforeach
1020
1021   _trial = [
1022     '-Werror=return-type',
1023     '-Werror=empty-body',
1024     '-Wno-non-virtual-dtor',
1025     '-Wno-missing-field-initializers',
1026     '-Wno-format-truncation',
1027     '-fno-math-errno',
1028     '-fno-trapping-math',
1029     '-Qunused-arguments',
1030     # Some classes use custom new operator which zeroes memory, however
1031     # gcc does aggressive dead-store elimination which threats all writes
1032     # to the memory before the constructor as "dead stores".
1033     # For now we disable this optimization.
1034     '-flifetime-dse=1',
1035   ]
1036   # MinGW chokes on format specifiers and I can't get it all working
1037   if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1038     _trial += ['-Werror=format', '-Wformat-security']
1039   endif
1040   foreach a : _trial
1041     if cpp.has_argument(a)
1042       cpp_args += a
1043     endif
1044   endforeach
1045
1046   foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
1047     if cc.has_argument(a)
1048       no_override_init_args += a
1049     endif
1050   endforeach
1051
1052   # Check for C and C++ arguments for MSVC compatibility. These are only used
1053   # in parts of the mesa code base that need to compile with MSVC, mainly
1054   # common code
1055   foreach a : ['-Werror=pointer-arith', '-Werror=vla', '-Werror=gnu-empty-initializer']
1056     if cc.has_argument(a)
1057       c_msvc_compat_args += a
1058     endif
1059     if cpp.has_argument(a)
1060       cpp_msvc_compat_args += a
1061     endif
1062   endforeach
1063 endif
1064
1065 # set linker arguments
1066 if host_machine.system() == 'windows'
1067   if cc.get_id() == 'msvc'
1068     add_project_link_arguments(
1069       '/fixed:no',
1070       '/dynamicbase',
1071       '/nxcompat',
1072       language : ['c', 'cpp'],
1073     )
1074     if get_option('buildtype') != 'debug'
1075       add_project_link_arguments(
1076         '/incremental:no',
1077         language : ['c', 'cpp'],
1078       )
1079     endif
1080   else
1081     add_project_link_arguments(
1082       '-Wl,--nxcompat',
1083       '-Wl,--dynamicbase',
1084       '-static-libgcc',
1085       '-static-libstdc++',
1086       language : ['c', 'cpp'],
1087     )
1088   endif
1089 endif
1090
1091 if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1092   pre_args += '-DUSE_SSE41'
1093   with_sse41 = true
1094   sse41_args = ['-msse4.1']
1095
1096   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1097   # that's not guaranteed
1098   if host_machine.cpu_family() == 'x86'
1099     sse41_args += '-mstackrealign'
1100   endif
1101 else
1102   with_sse41 = false
1103   sse41_args = []
1104 endif
1105
1106 # Check for GCC style atomics
1107 dep_atomic = null_dep
1108
1109 if cc.compiles('''#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                   }''',
1118                name : 'GCC atomic builtins')
1119   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1120
1121   # Not all atomic calls can be turned into lock-free instructions, in which
1122   # GCC will make calls into the libatomic library. Check whether we need to
1123   # link with -latomic.
1124   #
1125   # This can happen for 64-bit atomic operations on 32-bit architectures such
1126   # as ARM.
1127   if not cc.links('''#include <stdint.h>
1128                      int main() {
1129                        struct {
1130                          uint64_t *v;
1131                        } x;
1132                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1133                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1134                      }''',
1135                   name : 'GCC atomic builtins required -latomic')
1136     dep_atomic = cc.find_library('atomic')
1137   endif
1138 endif
1139 if not cc.links('''#include <stdint.h>
1140                    uint64_t v;
1141                    int main() {
1142                      return __sync_add_and_fetch(&v, (uint64_t)1);
1143                    }''',
1144                 dependencies : dep_atomic,
1145                 name : 'GCC 64bit atomics')
1146   pre_args += '-DMISSING_64BIT_ATOMICS'
1147 endif
1148
1149 dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1150
1151 # TODO: shared/static? Is this even worth doing?
1152
1153 with_asm_arch = ''
1154 if host_machine.cpu_family() == 'x86'
1155   if system_has_kms_drm or host_machine.system() == 'gnu'
1156     with_asm_arch = 'x86'
1157     pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1158                  '-DUSE_SSE_ASM']
1159
1160     if with_glx_read_only_text
1161       pre_args += ['-DGLX_X86_READONLY_TEXT']
1162     endif
1163   endif
1164 elif host_machine.cpu_family() == 'x86_64'
1165   if system_has_kms_drm
1166     with_asm_arch = 'x86_64'
1167     pre_args += ['-DUSE_X86_64_ASM']
1168   endif
1169 elif host_machine.cpu_family() == 'arm'
1170   if system_has_kms_drm
1171     with_asm_arch = 'arm'
1172     pre_args += ['-DUSE_ARM_ASM']
1173   endif
1174 elif host_machine.cpu_family() == 'aarch64'
1175   if system_has_kms_drm
1176     with_asm_arch = 'aarch64'
1177     pre_args += ['-DUSE_AARCH64_ASM']
1178   endif
1179 elif host_machine.cpu_family() == 'sparc64'
1180   if system_has_kms_drm
1181     with_asm_arch = 'sparc'
1182     pre_args += ['-DUSE_SPARC_ASM']
1183   endif
1184 elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
1185   if system_has_kms_drm
1186     with_asm_arch = 'ppc64le'
1187     pre_args += ['-DUSE_PPC64LE_ASM']
1188   endif
1189 endif
1190
1191 # Check for standard headers and functions
1192 if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1193   cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1194   cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1195   pre_args += '-DMAJOR_IN_SYSMACROS'
1196 endif
1197 if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1198   cc.has_header_symbol('sys/mkdev.h', 'minor') and
1199   cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1200   pre_args += '-DMAJOR_IN_MKDEV'
1201 endif
1202
1203 if not ['linux'].contains(host_machine.system())
1204   # Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1205   if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1206     pre_args += '-DHAVE_SYS_SYSCTL_H'
1207   endif
1208 endif
1209
1210 foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h', 'pthread_np.h']
1211   if cc.check_header(h)
1212     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1213   endif
1214 endforeach
1215
1216 foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r', 'flock', 'strtok_r', 'getrandom']
1217   if cc.has_function(f)
1218     pre_args += '-DHAVE_@0@'.format(f.to_upper())
1219   endif
1220 endforeach
1221
1222 if cc.has_header_symbol('errno.h', 'program_invocation_name',
1223                         args : '-D_GNU_SOURCE')
1224    pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1225 elif with_tools.contains('intel')
1226   error('Intel tools require the program_invocation_name variable')
1227 endif
1228
1229 # MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1230 # This means that this check will succeed, but then compilation will later
1231 # fail. MSVC doesn't have this function at all, so only check for it on
1232 # non-windows platforms.
1233 if host_machine.system() != 'windows'
1234   if cc.has_function('posix_memalign')
1235     pre_args += '-DHAVE_POSIX_MEMALIGN'
1236   endif
1237 endif
1238
1239 if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1240    #include <dirent.h>''')
1241    pre_args += '-DHAVE_DIRENT_D_TYPE'
1242 endif
1243
1244 # strtod locale support
1245 if cc.links('''
1246     #define _GNU_SOURCE
1247     #include <stdlib.h>
1248     #include <locale.h>
1249     #ifdef HAVE_XLOCALE_H
1250     #include <xlocale.h>
1251     #endif
1252     int main() {
1253       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1254       const char *s = "1.0";
1255       char *end;
1256       double d = strtod_l(s, end, loc);
1257       float f = strtof_l(s, end, loc);
1258       freelocale(loc);
1259       return 0;
1260     }''',
1261     args : pre_args,
1262     name : 'strtod has locale support')
1263   pre_args += '-DHAVE_STRTOD_L'
1264 endif
1265
1266 # Check for some linker flags
1267 ld_args_bsymbolic = []
1268 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1269   ld_args_bsymbolic += '-Wl,-Bsymbolic'
1270 endif
1271 ld_args_gc_sections = []
1272 if cc.links('static char unused() { return 5; } int main() { return 0; }',
1273             args : '-Wl,--gc-sections', name : 'gc-sections')
1274   ld_args_gc_sections += '-Wl,--gc-sections'
1275 endif
1276 with_ld_version_script = false
1277 if cc.links('int main() { return 0; }',
1278             args : '-Wl,--version-script=@0@'.format(
1279               join_paths(meson.source_root(), 'build-support/conftest.map')),
1280             name : 'version-script')
1281   with_ld_version_script = true
1282 endif
1283 with_ld_dynamic_list = false
1284 if cc.links('int main() { return 0; }',
1285             args : '-Wl,--dynamic-list=@0@'.format(
1286               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1287             name : 'dynamic-list')
1288   with_ld_dynamic_list = true
1289 endif
1290
1291 ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1292
1293 # check for dl support
1294 dep_dl = null_dep
1295 if not cc.has_function('dlopen')
1296   dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1297 endif
1298 if cc.has_function('dladdr', dependencies : dep_dl)
1299   # This is really only required for megadrivers
1300   pre_args += '-DHAVE_DLADDR'
1301 endif
1302
1303 if cc.has_function('dl_iterate_phdr')
1304   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1305 elif with_intel_vk
1306   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1307 elif with_dri_i965 and with_shader_cache
1308   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1309 endif
1310
1311 # Determine whether or not the rt library is needed for time functions
1312 if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1313   dep_clock = null_dep
1314 else
1315   dep_clock = cc.find_library('rt')
1316 endif
1317
1318 # TODO: some of these may be conditional
1319 dep_zlib = dependency('zlib', version : '>= 1.2.3', fallback : ['zlib', 'zlib_dep'])
1320 pre_args += '-DHAVE_ZLIB'
1321
1322 _zstd = get_option('zstd')
1323 if _zstd == 'true'
1324   _zstd = 'enabled'
1325   warning('zstd option "true" deprecated, please use "enabled" instead.')
1326 elif _zstd == 'false'
1327   _zstd = 'disabled'
1328   warning('zstd option "false" deprecated, please use "disabled" instead.')
1329 endif
1330 if _zstd != 'disabled'
1331   dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1332   if dep_zstd.found()
1333     pre_args += '-DHAVE_ZSTD'
1334   endif
1335 else
1336   dep_zstd = null_dep
1337 endif
1338
1339 dep_thread = dependency('threads')
1340 if dep_thread.found() and host_machine.system() != 'windows'
1341   pre_args += '-DHAVE_PTHREAD'
1342   if cc.has_function(
1343       'pthread_setaffinity_np',
1344       dependencies : dep_thread,
1345       prefix : '#include <pthread.h>',
1346       args : '-D_GNU_SOURCE')
1347     pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1348   endif
1349 endif
1350 if host_machine.system() != 'windows'
1351   dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'])
1352 else
1353   dep_expat = null_dep
1354 endif
1355 # this only exists on linux so either this is linux and it will be found, or
1356 # it's not linux and wont
1357 dep_m = cc.find_library('m', required : false)
1358
1359 # Check for libdrm. Various drivers have different libdrm version requirements,
1360 # but we always want to use the same version for all libdrm modules. That means
1361 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1362 # bar are both on use 2.4.3 for both of them
1363 dep_libdrm_amdgpu = null_dep
1364 dep_libdrm_radeon = null_dep
1365 dep_libdrm_nouveau = null_dep
1366 dep_libdrm_intel = null_dep
1367
1368 _drm_amdgpu_ver = '2.4.100'
1369 _drm_radeon_ver = '2.4.71'
1370 _drm_nouveau_ver = '2.4.102'
1371 _drm_intel_ver = '2.4.75'
1372 _drm_ver = '2.4.81'
1373
1374 _libdrm_checks = [
1375   ['intel', with_dri_i915 or with_gallium_i915],
1376   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1377   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1378               with_gallium_r300 or with_gallium_r600)],
1379   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1380 ]
1381
1382 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1383 # library.
1384 if with_gallium_vc4
1385   _drm_ver = '2.4.89'
1386 endif
1387
1388 # etnaviv only needs core libdrm
1389 if with_gallium_etnaviv
1390   _drm_ver = '2.4.89'
1391 endif
1392
1393 # Loop over the enables versions and get the highest libdrm requirement for all
1394 # active drivers.
1395 _drm_blame = ''
1396 foreach d : _libdrm_checks
1397   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1398   if d[1] and ver.version_compare('>' + _drm_ver)
1399     _drm_ver = ver
1400     _drm_blame = d[0]
1401   endif
1402 endforeach
1403 if _drm_blame != ''
1404   message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1405 endif
1406
1407 # Then get each libdrm module
1408 foreach d : _libdrm_checks
1409   if d[1]
1410     set_variable(
1411       'dep_libdrm_' + d[0],
1412       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1413     )
1414   endif
1415 endforeach
1416
1417 with_gallium_drisw_kms = false
1418 dep_libdrm = dependency(
1419   'libdrm', version : '>=' + _drm_ver,
1420   # GNU/Hurd includes egl_dri2, without drm.
1421   required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1422 )
1423 if dep_libdrm.found()
1424   pre_args += '-DHAVE_LIBDRM'
1425   if with_dri_platform == 'drm' and with_dri
1426     with_gallium_drisw_kms = true
1427   endif
1428 endif
1429
1430 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1431 llvm_optional_modules = ['coroutines']
1432 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1433   llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1434   if with_gallium_r600
1435     llvm_modules += 'asmparser'
1436   endif
1437 endif
1438 if with_gallium_opencl
1439   llvm_modules += [
1440     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1441     'lto', 'option', 'objcarcopts', 'profiledata',
1442   ]
1443 endif
1444
1445 with_opencl_spirv = _opencl != 'disabled' and get_option('opencl-spirv')
1446 if with_amd_vk or with_gallium_radeonsi or with_opencl_spirv
1447   _llvm_version = '>= 8.0.0'
1448 elif with_gallium_swr
1449   _llvm_version = '>= 6.0.0'
1450 else
1451   _llvm_version = '>= 3.9.0'
1452 endif
1453
1454 _shared_llvm = get_option('shared-llvm')
1455 if _shared_llvm == 'true'
1456   _shared_llvm = 'enabled'
1457   warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1458 elif _shared_llvm == 'false'
1459   _shared_llvm = 'disabled'
1460   warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1461 endif
1462 if _shared_llvm == 'auto'
1463   _shared_llvm = (host_machine.system() != 'windows')
1464 else
1465   _shared_llvm = (_shared_llvm == 'enabled')
1466 endif
1467 _llvm = get_option('llvm')
1468 if _llvm == 'true'
1469   _llvm = 'enabled'
1470   warning('llvm option "true" deprecated, please use "enabled" instead.')
1471 elif _llvm == 'false'
1472   _llvm = 'disabled'
1473   warning('llvm option "false" deprecated, please use "disabled" instead.')
1474 endif
1475
1476 # the cmake method can only link statically, so don't attempt to use it if we
1477 # want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1478 # linking is requested, so we need to force the config-tool method to be used
1479 # in that case, but in 0.54.0 meson won't try the cmake method if shared
1480 # linking is requested.
1481 _llvm_method = 'auto'
1482 if meson.version().version_compare('< 0.54.0') and _shared_llvm
1483   _llvm_method = 'config-tool'
1484 endif
1485
1486 dep_llvm = null_dep
1487 with_llvm = false
1488 if _llvm != 'disabled'
1489   dep_llvm = dependency(
1490     'llvm',
1491     version : _llvm_version,
1492     modules : llvm_modules,
1493     optional_modules : llvm_optional_modules,
1494     required : (
1495       with_amd_vk or with_gallium_radeonsi or with_gallium_swr or
1496       with_gallium_opencl or _llvm == 'enabled'
1497     ),
1498     static : not _shared_llvm,
1499     method : _llvm_method,
1500     fallback : ['llvm', 'dep_llvm'],
1501   )
1502   with_llvm = dep_llvm.found()
1503 endif
1504 if with_llvm
1505   pre_args += '-DLLVM_AVAILABLE'
1506   pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1507   pre_args += '-DLLVM_IS_SHARED=@0@'.format(_shared_llvm.to_int())
1508
1509   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1510   # programs, so we need to build all C++ code in mesa without rtti as well to
1511   # ensure that linking works.
1512   #
1513   # In meson 0.51.0 we can use cmake to find LLVM in addittion to meson's
1514   # builtin llvm-config based finder. A new generic variable getter method
1515   # has also been added, so we'll use that if we can, to cover the cmake case.
1516   if dep_llvm.type_name() == 'internal'
1517     _rtti = subproject('llvm').get_variable('has_rtti', true)
1518   else
1519     # The CMake finder will return 'ON', the llvm-config will return 'YES'
1520     _rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1521   endif
1522   if not _rtti
1523     if with_gallium_nouveau
1524       error('The Nouveau driver requires rtti. You either need to turn off nouveau or use an LLVM built with LLVM_ENABLE_RTTI.')
1525     elif with_gallium_opencl
1526       error('The Clover OpenCL state tracker requires rtti, you need to turn off clover or use an LLVM built with LLVM_ENABLE_RTTI.')
1527     endif
1528     if cc.get_id() == 'msvc'
1529       cpp_args += '/GR-'
1530     else
1531       cpp_args += '-fno-rtti'
1532     endif
1533   endif
1534 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1535   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1536 elif with_gallium_opencl
1537   error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1538 endif
1539
1540 if with_opencl_spirv
1541   chosen_llvm_version_array = dep_llvm.version().split('.')
1542   chosen_llvm_version_major = chosen_llvm_version_array[0].to_int()
1543   chosen_llvm_version_minor = chosen_llvm_version_array[1].to_int()
1544
1545   # Require an SPIRV-LLVM-Translator version compatible with the chosen LLVM
1546   # one.
1547   _llvmspirvlib_version = [
1548     # This first version check is still needed as maybe LLVM 8.0 was picked but
1549     # we do not want to accept SPIRV-LLVM-Translator 8.0.0.1 as that version does
1550     # not have the required API and those are only available starting from
1551     # 8.0.1.3.
1552     '>= 8.0.1.3',
1553     '>= @0@.@1@'.format(chosen_llvm_version_major, chosen_llvm_version_minor),
1554     '< @0@.@1@'.format(chosen_llvm_version_major, chosen_llvm_version_minor + 1) ]
1555
1556   dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
1557   # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
1558   dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : _llvmspirvlib_version)
1559 else
1560   dep_spirv_tools = null_dep
1561   dep_llvmspirvlib = null_dep
1562 endif
1563
1564 if (with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or
1565     (with_gallium_r600 and with_llvm))
1566   dep_elf = dependency('libelf', required : false)
1567   if not dep_elf.found()
1568     dep_elf = cc.find_library('elf')
1569   endif
1570 else
1571   dep_elf = null_dep
1572 endif
1573
1574 dep_glvnd = null_dep
1575 if with_glvnd
1576   dep_glvnd = dependency('libglvnd', version : '>= 1.3.2')
1577   pre_args += '-DUSE_LIBGLVND=1'
1578 endif
1579
1580 _valgrind = get_option('valgrind')
1581 if _valgrind == 'true'
1582   _valgrind = 'enabled'
1583   warning('valgrind option "true" deprecated, please use "enabled" instead.')
1584 elif _valgrind == 'false'
1585   _valgrind = 'disabled'
1586   warning('valgrind option "false" deprecated, please use "disabled" instead.')
1587 endif
1588 if _valgrind != 'disabled'
1589   dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1590   if dep_valgrind.found()
1591     pre_args += '-DHAVE_VALGRIND'
1592   endif
1593 else
1594   dep_valgrind = null_dep
1595 endif
1596
1597 # pthread stubs. Lets not and say we didn't
1598
1599 if host_machine.system() == 'windows'
1600   # Prefer the winflexbison versions, they're much easier to install and have
1601   # better windows support.
1602
1603   prog_flex = find_program('win_flex', required : false)
1604   if prog_flex.found()
1605     # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1606     # _fileno functions)
1607     prog_flex = [prog_flex, '--wincompat', '-D__STDC_VERSION__=199901']
1608   else
1609     prog_flex = [find_program('lex', 'flex', required : with_any_opengl)]
1610   endif
1611   # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1612   # __STDC__ macro to determine whether it's safe to use const keyword, but
1613   # MSVC never defines __STDC__ unless we disable all MSVC extensions.
1614   prog_flex += '-DYY_USE_CONST='
1615
1616   prog_bison = find_program('win_bison', required : false)
1617   if not prog_bison.found()
1618     prog_bison = find_program('yacc', 'bison', required : with_any_opengl)
1619   endif
1620 else
1621   prog_bison = find_program('bison', required : with_any_opengl)
1622
1623   # Disable deprecated keyword warnings, since we have to use them for
1624   # old-bison compat.  See discussion in
1625   # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1626   if find_program('bison', required : false, version : '> 2.3').found()
1627     prog_bison = [prog_bison, '-Wno-deprecated']
1628   endif
1629
1630   prog_flex = find_program('flex', required : with_any_opengl)
1631 endif
1632
1633 dep_selinux = null_dep
1634 if get_option('selinux')
1635   dep_selinux = dependency('libselinux')
1636   pre_args += '-DMESA_SELINUX'
1637 endif
1638
1639 _libunwind = get_option('libunwind')
1640 if _libunwind == 'true'
1641   _libunwind = 'enabled'
1642   warning('libunwind option "true" deprecated, please use "enabled" instead.')
1643 elif _libunwind == 'false'
1644   _libunwind = 'disabled'
1645   warning('libunwind option "false" deprecated, please use "disabled" instead.')
1646 endif
1647 if _libunwind != 'disabled'
1648   dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1649   if dep_unwind.found()
1650     pre_args += '-DHAVE_LIBUNWIND'
1651   endif
1652 else
1653   dep_unwind = null_dep
1654 endif
1655
1656 if with_osmesa != 'none'
1657   if with_osmesa == 'gallium' and not with_gallium_softpipe
1658     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1659   endif
1660   if host_machine.system() == 'windows'
1661     osmesa_lib_name = 'osmesa'
1662   else
1663     osmesa_lib_name = 'OSMesa'
1664   endif
1665   osmesa_bits = get_option('osmesa-bits')
1666   if osmesa_bits != '8'
1667     if with_dri or with_glx != 'disabled'
1668       error('OSMesa bits must be 8 if building glx or dri based drivers')
1669     endif
1670     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1671     pre_args += [
1672       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1673     ]
1674   endif
1675 endif
1676
1677 # TODO: symbol mangling
1678
1679 if with_platform_wayland
1680   dep_wl_scanner = dependency('wayland-scanner', native: true)
1681   prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1682   if dep_wl_scanner.version().version_compare('>= 1.15')
1683     wl_scanner_arg = 'private-code'
1684   else
1685     wl_scanner_arg = 'code'
1686   endif
1687   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1688   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1689   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1690   if with_egl
1691     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1692     dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1693   endif
1694   wayland_dmabuf_xml = join_paths(
1695     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1696     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1697   )
1698   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1699 endif
1700
1701 dep_x11 = null_dep
1702 dep_xext = null_dep
1703 dep_xdamage = null_dep
1704 dep_xfixes = null_dep
1705 dep_x11_xcb = null_dep
1706 dep_xcb = null_dep
1707 dep_xcb_glx = null_dep
1708 dep_xcb_dri2 = null_dep
1709 dep_xcb_dri3 = null_dep
1710 dep_dri2proto = null_dep
1711 dep_glproto = null_dep
1712 dep_xxf86vm = null_dep
1713 dep_xcb_dri3 = null_dep
1714 dep_xcb_present = null_dep
1715 dep_xcb_sync = null_dep
1716 dep_xcb_xfixes = null_dep
1717 dep_xshmfence = null_dep
1718 dep_xcb_xrandr = null_dep
1719 dep_xcb_shm = null_dep
1720 dep_xlib_xrandr = null_dep
1721 if with_platform_x11
1722   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1723     dep_x11 = dependency('x11')
1724     dep_xext = dependency('xext')
1725     dep_xcb = dependency('xcb')
1726   elif with_glx == 'dri'
1727     dep_x11 = dependency('x11')
1728     dep_xext = dependency('xext')
1729     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1730     dep_xfixes = dependency('xfixes', version : '>= 2.0')
1731     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1732     dep_xcb_shm = dependency('xcb-shm')
1733   endif
1734   if (with_any_vk or with_glx == 'dri' or with_egl or
1735        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1736         with_gallium_omx != 'disabled'))
1737     dep_xcb = dependency('xcb')
1738     dep_x11_xcb = dependency('x11-xcb')
1739     if with_dri_platform == 'drm' and not dep_libdrm.found()
1740       error('libdrm required for gallium video statetrackers when using x11')
1741     endif
1742   endif
1743   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1744     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1745
1746     if with_dri3
1747       pre_args += '-DHAVE_DRI3'
1748       dep_xcb_dri3 = dependency('xcb-dri3')
1749       dep_xcb_present = dependency('xcb-present')
1750       # until xcb-dri3 has been around long enough to make a hard-dependency:
1751       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1752           dep_xcb_present.version().version_compare('>= 1.13'))
1753         pre_args += '-DHAVE_DRI3_MODIFIERS'
1754       endif
1755       dep_xcb_sync = dependency('xcb-sync')
1756       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1757     endif
1758   endif
1759   if with_glx == 'dri' or with_glx == 'gallium-xlib'
1760     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1761   endif
1762   if with_glx == 'dri'
1763     if with_dri_platform == 'drm'
1764       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1765       dep_xxf86vm = dependency('xxf86vm')
1766     endif
1767   endif
1768   if (with_egl or (
1769       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1770       with_gallium_omx != 'disabled'))
1771     dep_xcb_xfixes = dependency('xcb-xfixes')
1772   endif
1773   if with_xlib_lease
1774     dep_xcb_xrandr = dependency('xcb-randr')
1775     dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
1776   endif
1777 endif
1778
1779 if get_option('gallium-extra-hud')
1780   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1781 endif
1782
1783 _sensors = get_option('lmsensors')
1784 if _sensors == 'true'
1785   _sensors = 'enabled'
1786   warning('lmsensors option "true" deprecated, please use "enabled" instead.')
1787 elif _sensors == 'false'
1788   _sensors = 'disabled'
1789   warning('lmsensors option "false" deprecated, please use "disabled" instead.')
1790 endif
1791 if _sensors != 'disabled'
1792   dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
1793   if dep_lmsensors.found()
1794     pre_args += '-DHAVE_LIBSENSORS=1'
1795   endif
1796 else
1797   dep_lmsensors = null_dep
1798 endif
1799
1800 # If the compiler supports it, put function and data symbols in their
1801 # own sections and GC the sections after linking.  This lets drivers
1802 # drop shared code unused by that specific driver (particularly
1803 # relevant for Vulkan drivers).
1804 if cc.has_link_argument('-Wl,--gc-sections')
1805   add_project_arguments('-Wl,--gc-sections', language : ['c', 'cpp'])
1806   foreach a: ['-ffunction-sections', '-fdata-sections']
1807     if cc.has_argument(a)
1808       add_project_arguments(a, language : ['c', 'cpp'])
1809     endif
1810   endforeach
1811 endif
1812
1813 foreach a : pre_args
1814   add_project_arguments(a, language : ['c', 'cpp'])
1815 endforeach
1816 foreach a : c_args
1817   add_project_arguments(a, language : ['c'])
1818 endforeach
1819 foreach a : cpp_args
1820   add_project_arguments(a, language : ['cpp'])
1821 endforeach
1822
1823 gl_priv_reqs = []
1824
1825 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1826   gl_priv_reqs += ['x11', 'xext', 'xcb']
1827 elif with_glx == 'dri'
1828   gl_priv_reqs += [
1829     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1830     'xcb-glx >= 1.8.1']
1831   if with_dri_platform == 'drm'
1832     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1833     gl_priv_reqs += 'xxf86vm'
1834   endif
1835 endif
1836 if dep_libdrm.found()
1837   gl_priv_reqs += 'libdrm >= 2.4.75'
1838 endif
1839
1840 gl_priv_libs = []
1841 if dep_thread.found()
1842   gl_priv_libs += ['-lpthread', '-pthread']
1843 endif
1844 if dep_m.found()
1845   gl_priv_libs += '-lm'
1846 endif
1847 if dep_dl.found()
1848   gl_priv_libs += '-ldl'
1849 endif
1850
1851 # FIXME: autotools lists this as incomplete
1852 gbm_priv_libs = []
1853 if dep_dl.found()
1854   gbm_priv_libs += '-ldl'
1855 endif
1856
1857 pkg = import('pkgconfig')
1858
1859 if host_machine.system() == 'windows'
1860   prog_dumpbin = find_program('dumpbin', required : false)
1861   with_symbols_check = prog_dumpbin.found() and with_tests
1862   symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
1863 else
1864   prog_nm = find_program('nm')
1865   with_symbols_check = with_tests
1866   symbols_check_args = ['--nm', prog_nm.path()]
1867 endif
1868
1869 # This quirk needs to be applied to sources with functions defined in assembly
1870 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
1871 gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
1872
1873 subdir('include')
1874 subdir('bin')
1875 subdir('src')
1876
1877 # Meson 0.49 and earlier seems to have a bug that fails to evaluate the string-
1878 # formatting below unless the first argument is passed as a variable. This has
1879 # been fixed in Meson 0.50 and beyond, but we need to keep it like this for now
1880 # for backwards compatibility.
1881 _with_opengl_string = with_opengl ? 'yes' : 'no'
1882
1883 lines = ['',
1884   'prefix:          ' + get_option('prefix'),
1885   'libdir:          ' + get_option('libdir'),
1886   'includedir:      ' + get_option('includedir'),
1887   '',
1888   'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(_with_opengl_string,
1889                                                     with_gles1 ? 'yes' : 'no',
1890                                                     with_gles2 ? 'yes' : 'no'),
1891 ]
1892
1893 if with_osmesa != 'none'
1894   lines += ''
1895   suffix = ''
1896   if with_osmesa == 'gallium'
1897     suffix = '(Gallium)'
1898   endif
1899   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix
1900 else
1901   lines += 'OSMesa:          no'
1902 endif
1903
1904 if with_dri
1905   lines += ''
1906   lines += 'DRI platform:    ' + with_dri_platform
1907   if dri_drivers.length() != 0 and dri_drivers != ['']
1908     lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
1909   else
1910     lines += 'DRI drivers:     no'
1911   endif
1912   lines += 'DRI driver dir:  ' + dri_drivers_path
1913 endif
1914
1915 if with_glx != 'disabled'
1916   lines += ''
1917   if with_glx == 'dri'
1918     lines += 'GLX:             DRI-based'
1919   elif with_glx == 'xlib'
1920     lines += 'GLX:             Xlib-based'
1921   elif with_glx == 'gallium-xlib'
1922     lines += 'GLX:             Xlib-based (Gallium)'
1923   else
1924     lines += 'GLX:             ' + with_glx
1925   endif
1926 endif
1927
1928 lines += ''
1929 lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
1930 if with_egl
1931   egl_drivers = []
1932   if with_dri
1933     egl_drivers += 'builtin:egl_dri2'
1934   endif
1935   if with_dri3
1936     egl_drivers += 'builtin:egl_dri3'
1937   endif
1938   lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
1939 endif
1940 lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
1941 if with_egl or with_any_vk
1942   _platforms += 'surfaceless'
1943   if with_gbm
1944     _platforms += 'drm'
1945   endif
1946   lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
1947 endif
1948
1949 lines += ''
1950 if with_any_vk
1951   lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
1952   lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
1953 else
1954   lines += 'Vulkan drivers:  no'
1955 endif
1956
1957 lines += ''
1958 if with_llvm
1959   lines += 'llvm:            yes'
1960   lines += 'llvm-version:    ' + dep_llvm.version()
1961 else
1962   lines += 'llvm:            no'
1963 endif
1964
1965 lines += ''
1966 if with_gallium
1967   lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
1968   gallium_st = ['mesa']
1969   if with_gallium_xa
1970     gallium_st += 'xa'
1971   endif
1972   if with_gallium_xvmc
1973     gallium_st += 'xvmc'
1974   endif
1975   if with_gallium_xvmc
1976     gallium_st += 'xvmc'
1977   endif
1978   if with_gallium_vdpau
1979     gallium_st += 'vdpau'
1980   endif
1981   if with_gallium_omx != 'disabled'
1982     gallium_st += 'omx' + with_gallium_omx
1983   endif
1984   if with_gallium_va
1985     gallium_st += 'va'
1986   endif
1987   if with_gallium_st_nine
1988     gallium_st += 'nine'
1989   endif
1990   if with_gallium_opencl
1991     gallium_st += 'clover'
1992   endif
1993   lines += 'Gallium st:      ' + ' '.join(gallium_st)
1994 else
1995   lines += 'Gallium:         no'
1996 endif
1997
1998 lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
1999
2000 lines += ''
2001 lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
2002
2003
2004 indent = '        '
2005 summary = indent + ('\n' + indent).join(lines)
2006 message('Configuration summary:\n@0@\n'.format(summary))