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