meson.build

   1 # Copyright © 2017-2018 Intel Corporation
   2
   3 # Permission is hereby granted, free of charge, to any person obtaining a copy
   4 # of this software and associated documentation files (the "Software"), to deal
   5 # in the Software without restriction, including without limitation the rights
   6 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 # copies of the Software, and to permit persons to whom the Software is
   8 # furnished to do so, subject to the following conditions:
   9
  10 # The above copyright notice and this permission notice shall be included in
  11 # all copies or substantial portions of the Software.
  12
  13 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19 # SOFTWARE.
  20
  21 project(
  22   'mesa',
  23   ['c', 'cpp'],
  24   version : run_command(
  25     [find_program('python', 'python2', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.42',
  29   default_options : ['buildtype=debugoptimized', 'c_std=c99', 'cpp_std=c++11']
  30 )
  31
  32 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  33
  34 # Arguments for the preprocessor, put these in a separate array from the C and
  35 # C++ (cpp in meson terminology) arguments since they need to be added to the
  36 # default arguments for both C and C++.
  37 pre_args = [
  38   '-D__STDC_CONSTANT_MACROS',
  39   '-D__STDC_FORMAT_MACROS',
  40   '-D__STDC_LIMIT_MACROS',
  41   '-DVERSION="@0@"'.format(meson.project_version()),
  42   '-DPACKAGE_VERSION=VERSION',
  43   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  44 ]
  45
  46 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  47 with_tests = get_option('build-tests')
  48 with_valgrind = get_option('valgrind')
  49 with_libunwind = get_option('libunwind')
  50 with_asm = get_option('asm')
  51 with_osmesa = get_option('osmesa')
  52 with_swr_arches = get_option('swr-arches').split(',')
  53 with_tools = get_option('tools').split(',')
  54 if with_tools.contains('all')
  55   with_tools = ['freedreno', 'glsl', 'intel', 'nir', 'nouveau']
  56 endif
  57 if get_option('texture-float')
  58   pre_args += '-DTEXTURE_FLOAT_ENABLED'
  59   message('WARNING: Floating-point texture enabled. Please consult docs/patents.txt and your lawyer before building mesa.')
  60 endif
  61
  62 dri_drivers_path = get_option('dri-drivers-path')
  63 if dri_drivers_path == ''
  64   dri_drivers_path = join_paths(get_option('libdir'), 'dri')
  65 endif
  66 dri_search_path = get_option('dri-search-path')
  67 if dri_search_path == ''
  68   dri_search_path = join_paths(get_option('prefix'), dri_drivers_path)
  69 endif
  70
  71 with_gles1 = get_option('gles1')
  72 with_gles2 = get_option('gles2')
  73 with_opengl = get_option('opengl')
  74 with_any_opengl = with_opengl or with_gles1 or with_gles2
  75 # Only build shared_glapi if at least one OpenGL API is enabled
  76 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  77
  78
  79 # shared-glapi is required if at least two OpenGL APIs are being built
  80 if not with_shared_glapi
  81   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  82       or (with_gles2 and with_opengl))
  83     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  84   endif
  85 endif
  86
  87 # We require OpenGL for OpenGL ES
  88 if (with_gles1 or with_gles2) and not with_opengl
  89   error('building OpenGL ES without OpenGL is not supported.')
  90 endif
  91
  92 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  93
  94 with_dri = false
  95 with_dri_i915 = false
  96 with_dri_i965 = false
  97 with_dri_r100 = false
  98 with_dri_r200 = false
  99 with_dri_nouveau = false
 100 with_dri_swrast = false
 101 _drivers = get_option('dri-drivers')
 102 if _drivers == 'auto'
 103   if system_has_kms_drm
 104     # TODO: PPC, Sparc
 105     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 106       _drivers = 'i915,i965,r100,r200,nouveau'
 107     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 108       _drivers = ''
 109     else
 110       error('Unknown architecture. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 111     endif
 112   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 113     # only swrast would make sense here, but gallium swrast is a much better default
 114     _drivers = ''
 115   else
 116     error('Unknown OS. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 117   endif
 118 endif
 119 if _drivers != ''
 120   _split = _drivers.split(',')
 121   with_dri_i915 = _split.contains('i915')
 122   with_dri_i965 = _split.contains('i965')
 123   with_dri_r100 = _split.contains('r100')
 124   with_dri_r200 = _split.contains('r200')
 125   with_dri_nouveau = _split.contains('nouveau')
 126   with_dri_swrast = _split.contains('swrast')
 127   with_dri = true
 128 endif
 129
 130 with_gallium = false
 131 with_gallium_pl111 = false
 132 with_gallium_radeonsi = false
 133 with_gallium_r300 = false
 134 with_gallium_r600 = false
 135 with_gallium_nouveau = false
 136 with_gallium_freedreno = false
 137 with_gallium_softpipe = false
 138 with_gallium_vc4 = false
 139 with_gallium_vc5 = false
 140 with_gallium_etnaviv = false
 141 with_gallium_imx = false
 142 with_gallium_tegra = false
 143 with_gallium_i915 = false
 144 with_gallium_svga = false
 145 with_gallium_virgl = false
 146 with_gallium_swr = false
 147 _drivers = get_option('gallium-drivers')
 148 if _drivers == 'auto'
 149   if system_has_kms_drm
 150     # TODO: PPC, Sparc
 151     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 152       _drivers = 'r300,r600,radeonsi,nouveau,virgl,svga,swrast'
 153     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 154       _drivers = 'pl111,vc4,vc5,freedreno,etnaviv,imx,nouveau,tegra,virgl,swrast'
 155     else
 156       error('Unknown architecture. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 157     endif
 158   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 159     _drivers = 'swrast'
 160   else
 161     error('Unknown OS. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 162   endif
 163 endif
 164 if _drivers != ''
 165   _split = _drivers.split(',')
 166   with_gallium_pl111 = _split.contains('pl111')
 167   with_gallium_radeonsi = _split.contains('radeonsi')
 168   with_gallium_r300 = _split.contains('r300')
 169   with_gallium_r600 = _split.contains('r600')
 170   with_gallium_nouveau = _split.contains('nouveau')
 171   with_gallium_freedreno = _split.contains('freedreno')
 172   with_gallium_softpipe = _split.contains('swrast')
 173   with_gallium_vc4 = _split.contains('vc4')
 174   with_gallium_vc5 = _split.contains('vc5')
 175   with_gallium_etnaviv = _split.contains('etnaviv')
 176   with_gallium_imx = _split.contains('imx')
 177   with_gallium_tegra = _split.contains('tegra')
 178   with_gallium_i915 = _split.contains('i915')
 179   with_gallium_svga = _split.contains('svga')
 180   with_gallium_virgl = _split.contains('virgl')
 181   with_gallium_swr = _split.contains('swr')
 182   with_gallium = true
 183   if system_has_kms_drm
 184     _glx = get_option('glx')
 185     _egl = get_option('egl')
 186     if _glx == 'dri' or _egl == 'true' or (_glx == 'disabled' and _egl != 'false')
 187       with_dri = true
 188     endif
 189   endif
 190 endif
 191
 192 with_intel_vk = false
 193 with_amd_vk = false
 194 with_any_vk = false
 195 _vulkan_drivers = get_option('vulkan-drivers')
 196 if _vulkan_drivers == 'auto'
 197   if system_has_kms_drm
 198     if host_machine.cpu_family().startswith('x86')
 199       _vulkan_drivers = 'amd,intel'
 200     else
 201       error('Unknown architecture. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 202     endif
 203   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 204     # No vulkan driver supports windows or macOS currently
 205     _vulkan_drivers = ''
 206   else
 207     error('Unknown OS. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 208   endif
 209 endif
 210 if _vulkan_drivers != ''
 211   _split = _vulkan_drivers.split(',')
 212   with_intel_vk = _split.contains('intel')
 213   with_amd_vk = _split.contains('amd')
 214   with_any_vk = with_amd_vk or with_intel_vk
 215 endif
 216
 217 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 218   error('Only one swrast provider can be built')
 219 endif
 220 if with_dri_i915 and with_gallium_i915
 221   error('Only one i915 provider can be built')
 222 endif
 223 if with_gallium_imx and not with_gallium_etnaviv
 224   error('IMX driver requires etnaviv driver')
 225 endif
 226 if with_gallium_pl111 and not with_gallium_vc4
 227   error('pl111 driver requires vc4 driver')
 228 endif
 229 if with_gallium_tegra and not with_gallium_nouveau
 230   error('tegra driver requires nouveau driver')
 231 endif
 232
 233 dep_libdrm_intel = []
 234 if with_dri_i915 or with_gallium_i915
 235   dep_libdrm_intel = dependency('libdrm_intel', version : '>= 2.4.75')
 236 endif
 237
 238 if host_machine.system() == 'darwin'
 239   with_dri_platform = 'apple'
 240 elif ['windows', 'cygwin'].contains(host_machine.system())
 241   with_dri_platform = 'windows'
 242 elif system_has_kms_drm
 243   with_dri_platform = 'drm'
 244 else
 245   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 246   # assert here that one of those cases has been met.
 247   # FIXME: GNU (hurd) ends up here as well, but meson doesn't officially
 248   # support Hurd at time of writing (2017/11)
 249   # FIXME: illumos ends up here as well
 250   with_dri_platform = 'none'
 251 endif
 252
 253 with_platform_android = false
 254 with_platform_wayland = false
 255 with_platform_x11 = false
 256 with_platform_drm = false
 257 with_platform_surfaceless = false
 258 egl_native_platform = ''
 259 _platforms = get_option('platforms')
 260 if _platforms == 'auto'
 261   if system_has_kms_drm
 262     _platforms = 'x11,wayland,drm,surfaceless'
 263   elif ['darwin', 'windows', 'cygwin'].contains(host_machine.system())
 264     _platforms = 'x11,surfaceless'
 265   elif ['haiku'].contains(host_machine.system())
 266     _platforms = 'haiku'
 267   else
 268     error('Unknown OS. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.')
 269   endif
 270 endif
 271 if _platforms != ''
 272   _split = _platforms.split(',')
 273   with_platform_android = _split.contains('android')
 274   with_platform_x11 = _split.contains('x11')
 275   with_platform_wayland = _split.contains('wayland')
 276   with_platform_drm = _split.contains('drm')
 277   with_platform_haiku = _split.contains('haiku')
 278   with_platform_surfaceless = _split.contains('surfaceless')
 279   egl_native_platform = _split[0]
 280 endif
 281
 282 with_glx = get_option('glx')
 283 if with_glx == 'auto'
 284   if with_dri
 285     with_glx = 'dri'
 286   elif with_platform_haiku
 287     with_glx = 'disabled'
 288   elif with_gallium
 289     # Even when building just gallium drivers the user probably wants dri
 290     with_glx = 'dri'
 291     with_dri = true
 292   elif with_platform_x11 and with_any_opengl and not with_any_vk
 293     # The automatic behavior should not be to turn on xlib based glx when
 294     # building only vulkan drivers
 295     with_glx = 'xlib'
 296   else
 297     with_glx = 'disabled'
 298   endif
 299 endif
 300
 301 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 302   with_gles1 = false
 303   with_gles2 = false
 304   with_opengl = false
 305   with_any_opengl = false
 306   with_shared_glapi = false
 307 endif
 308
 309 _gbm = get_option('gbm')
 310 if _gbm == 'auto'
 311   with_gbm = system_has_kms_drm and with_dri
 312 else
 313   with_gbm = _gbm == 'true'
 314 endif
 315 if with_gbm and not system_has_kms_drm
 316   error('GBM only supports DRM/KMS platforms')
 317 endif
 318
 319 _egl = get_option('egl')
 320 if _egl == 'auto'
 321   with_egl = with_dri and with_shared_glapi and egl_native_platform != ''
 322 elif _egl == 'true'
 323   if not with_dri
 324     error('EGL requires dri')
 325   elif not with_shared_glapi
 326     error('EGL requires shared-glapi')
 327   elif egl_native_platform == ''
 328     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 329   elif not ['disabled', 'dri'].contains(with_glx)
 330     error('EGL requires dri, but a GLX is being built without dri')
 331   endif
 332   with_egl = true
 333 else
 334   with_egl = false
 335 endif
 336
 337 if with_egl and not (with_platform_drm or with_platform_surfaceless)
 338   if with_gallium_radeonsi
 339     error('RadeonSI requires drm or surfaceless platform when using EGL')
 340   endif
 341   if with_gallium_virgl
 342     error('Virgl requires drm or surfaceless platform when using EGL')
 343   endif
 344 endif
 345
 346 pre_args += '-DGLX_USE_TLS'
 347 if with_glx != 'disabled'
 348   if not (with_platform_x11 and with_any_opengl)
 349     if with_glx == 'auto'
 350       with_glx = 'disabled'
 351     else
 352       error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 353     endif
 354   elif with_glx == 'gallium-xlib'
 355     if not with_gallium
 356       error('Gallium-xlib based GLX requires at least one gallium driver')
 357     elif not with_gallium_softpipe
 358       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 359     elif with_dri
 360       error('gallium-xlib conflicts with any dri driver')
 361     endif
 362   elif with_glx == 'xlib'
 363     if with_dri
 364       error('xlib conflicts with any dri driver')
 365     endif
 366   elif with_glx == 'dri' and not with_dri
 367     error('dri based GLX requires at least one DRI driver')
 368   endif
 369 endif
 370
 371 with_glvnd = get_option('glvnd')
 372 if with_glvnd
 373   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 374     error('Cannot build glvnd support for GLX that is not DRI based.')
 375   elif with_glx == 'disabled' and not with_egl
 376     error('glvnd requires DRI based GLX and/or EGL')
 377   endif
 378 endif
 379
 380 # TODO: toggle for this
 381 with_glx_direct = true
 382
 383 if with_vulkan_icd_dir == ''
 384   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 385 endif
 386
 387 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 388 _dri3 = get_option('dri3')
 389 if _dri3 == 'auto'
 390   with_dri3 = system_has_kms_drm and with_dri2
 391 else
 392   with_dri3 = _dri3 == 'true'
 393 endif
 394
 395 if with_any_vk and (with_platform_x11 and not with_dri3)
 396   error('Vulkan drivers require dri3 for X11 support')
 397 endif
 398 if with_dri or with_gallium
 399   if with_glx == 'disabled' and not with_egl and not with_platform_haiku
 400     error('building dri or gallium drivers require at least one window system')
 401   endif
 402 endif
 403
 404 prog_pkgconfig = find_program('pkg-config')
 405
 406 _vdpau = get_option('gallium-vdpau')
 407 if not system_has_kms_drm
 408   if _vdpau == 'true'
 409     error('VDPAU state tracker can only be build on unix-like OSes.')
 410   else
 411     _vdpau = 'false'
 412   endif
 413 elif not with_platform_x11
 414   if _vdpau == 'true'
 415     error('VDPAU state tracker requires X11 support.')
 416   else
 417     _vdpau = 'false'
 418   endif
 419 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 420           with_gallium_nouveau)
 421   if _vdpau == 'true'
 422     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 423   else
 424     _vdpau = 'false'
 425   endif
 426 elif _vdpau == 'auto'
 427   _vdpau = 'true'
 428 endif
 429 with_gallium_vdpau = _vdpau == 'true'
 430 dep_vdpau = []
 431 if with_gallium_vdpau
 432   dep_vdpau = dependency('vdpau', version : '>= 1.1')
 433   dep_vdpau = declare_dependency(
 434     compile_args : run_command(prog_pkgconfig, ['vdpau', '--cflags']).stdout().split()
 435   )
 436 endif
 437
 438 if with_gallium_vdpau
 439   pre_args += '-DHAVE_ST_VDPAU'
 440 endif
 441 vdpau_drivers_path = get_option('vdpau-libs-path')
 442 if vdpau_drivers_path == ''
 443   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 444 endif
 445
 446 _xvmc = get_option('gallium-xvmc')
 447 if not system_has_kms_drm
 448   if _xvmc == 'true'
 449     error('XVMC state tracker can only be build on unix-like OSes.')
 450   else
 451     _xvmc = 'false'
 452   endif
 453 elif not with_platform_x11
 454   if _xvmc == 'true'
 455     error('XVMC state tracker requires X11 support.')
 456   else
 457     _xvmc = 'false'
 458   endif
 459 elif not (with_gallium_r600 or with_gallium_nouveau)
 460   if _xvmc == 'true'
 461     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 462   else
 463     _xvmc = 'false'
 464   endif
 465 elif _xvmc == 'auto'
 466   _xvmc = 'true'
 467 endif
 468 with_gallium_xvmc = _xvmc == 'true'
 469 dep_xvmc = []
 470 if with_gallium_xvmc
 471   dep_xvmc = dependency('xvmc', version : '>= 1.0.6')
 472 endif
 473
 474 xvmc_drivers_path = get_option('xvmc-libs-path')
 475 if xvmc_drivers_path == ''
 476   xvmc_drivers_path = get_option('libdir')
 477 endif
 478
 479 _omx = get_option('gallium-omx')
 480 if not system_has_kms_drm
 481   if ['auto', 'disabled'].contains(_omx)
 482     _omx = 'disabled'
 483   else
 484     error('OMX state tracker can only be built on unix-like OSes.')
 485   endif
 486 elif not (with_platform_x11 or with_platform_drm)
 487   if ['auto', 'disabled'].contains(_omx)
 488     _omx = 'disabled'
 489   else
 490     error('OMX state tracker requires X11 or drm platform support.')
 491   endif
 492 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 493   if ['auto', 'disabled'].contains(_omx)
 494     _omx = 'disabled'
 495   else
 496     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 497   endif
 498 endif
 499 dep_omx = []
 500 dep_omx_other = []
 501 if ['auto', 'bellagio'].contains(_omx)
 502   dep_omx = dependency(
 503     'libomxil-bellagio', required : _omx == 'bellagio'
 504   )
 505   if dep_omx.found()
 506     pre_args += '-DENABLE_ST_OMX_BELLAGIO'
 507     with_gallium_omx = 'bellagio'
 508   endif
 509 endif
 510 if ['auto', 'tizonia'].contains(_omx)
 511   if with_dri and with_egl
 512     dep_omx = dependency(
 513       'libtizonia', version : '>= 0.10.0',
 514       required : _omx == 'tizonia',
 515     )
 516     dep_omx_other = [
 517       dependency('libtizplatform', required : _omx == 'tizonia'),
 518       dependency('tizilheaders', required : _omx == 'tizonia'),
 519     ]
 520     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 521       pre_args += '-DENABLE_ST_OMX_TIZONIA'
 522       with_gallium_omx = 'tizonia'
 523     endif
 524   elif _omx == 'tizonia'
 525     error('OMX-Tizonia state tracker requires dri and egl')
 526   endif
 527 endif
 528 if _omx == 'auto'
 529   with_gallium_omx = 'disabled'
 530 else
 531   with_gallium_omx = _omx
 532 endif
 533
 534 omx_drivers_path = get_option('omx-libs-path')
 535 if with_gallium_omx != 'disabled'
 536   # Figure out where to put the omx driver.
 537   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 538   # argument to meson's get_pkgconfig_variable method.
 539   if omx_drivers_path == ''
 540     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 541     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 542     if _omx_libdir == get_option('libdir')
 543       omx_drivers_path = _omx_drivers_dir
 544     else
 545       _omx_base_dir = []
 546       # This will fail on windows. Does OMX run on windows?
 547       _omx_libdir = _omx_libdir.split('/')
 548       _omx_drivers_dir = _omx_drivers_dir.split('/')
 549       foreach o : _omx_drivers_dir
 550         if not _omx_libdir.contains(o)
 551           _omx_base_dir += o
 552         endif
 553       endforeach
 554       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 555     endif
 556   endif
 557 endif
 558
 559 _va = get_option('gallium-va')
 560 if not system_has_kms_drm
 561   if _va == 'true'
 562     error('VA state tracker can only be built on unix-like OSes.')
 563   else
 564     _va = 'false'
 565   endif
 566 elif not (with_platform_x11 or with_platform_drm)
 567   if _va == 'true'
 568     error('VA state tracker requires X11 or drm or wayland platform support.')
 569   else
 570     _va = 'false'
 571   endif
 572 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 573   if _va == 'true'
 574     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 575   else
 576     _va = 'false'
 577   endif
 578 elif _va == 'auto'
 579   _va = 'true'
 580 endif
 581 with_gallium_va = _va == 'true'
 582 dep_va = []
 583 if with_gallium_va
 584   dep_va = dependency('libva', version : '>= 0.38.0')
 585   dep_va_headers = declare_dependency(
 586     compile_args : run_command(prog_pkgconfig, ['libva', '--cflags']).stdout().split()
 587   )
 588 endif
 589
 590 va_drivers_path = get_option('va-libs-path')
 591 if va_drivers_path == ''
 592   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 593 endif
 594
 595 _xa = get_option('gallium-xa')
 596 if not system_has_kms_drm
 597   if _xa == 'true'
 598     error('XA state tracker can only be built on unix-like OSes.')
 599   else
 600     _xa = 'false'
 601   endif
 602 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 603           or with_gallium_svga)
 604   if _xa == 'true'
 605     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 606   else
 607     _xa = 'false'
 608   endif
 609 endif
 610 with_gallium_xa = _xa != 'false'
 611
 612 d3d_drivers_path = get_option('d3d-drivers-path')
 613 if d3d_drivers_path == ''
 614   d3d_drivers_path = join_paths(get_option('libdir'), 'd3d')
 615 endif
 616
 617 with_gallium_st_nine =  get_option('gallium-nine')
 618 if with_gallium_st_nine
 619   if not with_gallium_softpipe
 620     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 621   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 622             or with_gallium_r300 or with_gallium_svga or with_gallium_i915)
 623     error('The nine state tracker requires at least on non-swrast gallium driver.')
 624   endif
 625   if not with_dri3
 626     error('Using nine with wine requires dri3')
 627   endif
 628 endif
 629
 630 _opencl = get_option('gallium-opencl')
 631 if _opencl != 'disabled'
 632   if not with_gallium
 633     error('OpenCL Clover implementation requires at least one gallium driver.')
 634   endif
 635
 636   # TODO: alitvec?
 637   dep_clc = dependency('libclc')
 638   with_gallium_opencl = true
 639   with_opencl_icd = _opencl == 'icd'
 640 else
 641   dep_clc = []
 642   with_gallium_opencl = false
 643   with_gallium_icd = false
 644 endif
 645
 646 gl_pkgconfig_c_flags = []
 647 if with_platform_x11
 648   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 649     pre_args += '-DHAVE_X11_PLATFORM'
 650   endif
 651   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 652     pre_args += '-DUSE_XSHM'
 653   else
 654     pre_args += '-DGLX_INDIRECT_RENDERING'
 655     if with_glx_direct
 656       pre_args += '-DGLX_DIRECT_RENDERING'
 657     endif
 658     if with_dri_platform == 'drm'
 659       pre_args += '-DGLX_USE_DRM'
 660     elif with_dri_platform == 'apple'
 661       pre_args += '-DGLX_USE_APPLEGL'
 662     elif with_dri_platform == 'windows'
 663       pre_args += '-DGLX_USE_WINDOWSGL'
 664     endif
 665   endif
 666 else
 667   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 668   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 669 endif
 670 if with_platform_drm
 671   if with_egl and not with_gbm
 672     error('EGL drm platform requires gbm')
 673   endif
 674   pre_args += '-DHAVE_DRM_PLATFORM'
 675 endif
 676 if with_platform_surfaceless
 677   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 678 endif
 679 if with_platform_android
 680   dep_android = [
 681     dependency('cutils'),
 682     dependency('hardware'),
 683     dependency('sync'),
 684   ]
 685   pre_args += '-DHAVE_ANDROID_PLATFORM'
 686 endif
 687 if with_platform_haiku
 688   pre_args += '-DHAVE_HAIKU_PLATFORM'
 689 endif
 690
 691 prog_python2 = find_program('python2')
 692 has_mako = run_command(prog_python2, '-c', 'import mako')
 693 if has_mako.returncode() != 0
 694   error('Python (2.x) mako module required to build mesa.')
 695 endif
 696
 697 cc = meson.get_compiler('c')
 698 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 699   error('When using GCC, version 4.4.6 or later is required.')
 700 endif
 701
 702 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 703 if get_option('buildtype') == 'debug'
 704   pre_args += '-DDEBUG'
 705 endif
 706
 707 if get_option('shader-cache')
 708   pre_args += '-DENABLE_SHADER_CACHE'
 709 elif with_amd_vk
 710   error('Radv requires shader cache support')
 711 endif
 712
 713 # Check for GCC style builtins
 714 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 715              'ffsll', 'popcount', 'popcountll', 'unreachable']
 716   if cc.has_function(b)
 717     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 718   endif
 719 endforeach
 720
 721 # check for GCC __attribute__
 722 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 723              'warn_unused_result', 'weak',]
 724   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 725                  name : '__attribute__((@0@))'.format(a))
 726     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 727   endif
 728 endforeach
 729 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 730                name : '__attribute__((format(...)))')
 731   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 732 endif
 733 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 734                name : '__attribute__((packed))')
 735   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 736 endif
 737 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 738                name : '__attribute__((returns_nonnull))')
 739   pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
 740 endif
 741 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 742                   int foo_hid(void) __attribute__((visibility("hidden")));
 743                   int foo_int(void) __attribute__((visibility("internal")));
 744                   int foo_pro(void) __attribute__((visibility("protected")));''',
 745                name : '__attribute__((visibility(...)))')
 746   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 747 endif
 748 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 749                name : '__attribute__((alias(...)))')
 750   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 751 endif
 752 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 753                name : '__attribute__((__noreturn__))')
 754   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 755 endif
 756
 757 # TODO: this is very incomplete
 758 if ['linux', 'cygwin'].contains(host_machine.system())
 759   pre_args += '-D_GNU_SOURCE'
 760 endif
 761
 762 # Check for generic C arguments
 763 c_args = []
 764 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 765              '-Werror=missing-prototypes', '-fno-math-errno',
 766              '-fno-trapping-math', '-Qunused-arguments']
 767   if cc.has_argument(a)
 768     c_args += a
 769   endif
 770 endforeach
 771 c_vis_args = []
 772 if cc.has_argument('-fvisibility=hidden')
 773   c_vis_args += '-fvisibility=hidden'
 774 endif
 775
 776 # Check for generic C++ arguments
 777 cpp = meson.get_compiler('cpp')
 778 cpp_args = []
 779 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 780              '-Qunused-arguments']
 781   if cpp.has_argument(a)
 782     cpp_args += a
 783   endif
 784 endforeach
 785
 786 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
 787 # option is not supported. Hence, check for -Wfoo instead.
 788 if cpp.has_argument('-Wnon-virtual-dtor')
 789   cpp_args += '-Wno-non-virtual-dtor'
 790 endif
 791
 792 no_override_init_args = []
 793 foreach a : ['override-init', 'initializer-overrides']
 794   if cc.has_argument('-W' + a)
 795     no_override_init_args += '-Wno-' + a
 796   endif
 797 endforeach
 798
 799 cpp_vis_args = []
 800 if cpp.has_argument('-fvisibility=hidden')
 801   cpp_vis_args += '-fvisibility=hidden'
 802 endif
 803
 804 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 805 # in parts of the mesa code base that need to compile with old versions of
 806 # MSVC, mainly common code
 807 c_msvc_compat_args = []
 808 cpp_msvc_compat_args = []
 809 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 810   if cc.has_argument(a)
 811     c_msvc_compat_args += a
 812   endif
 813   if cpp.has_argument(a)
 814     cpp_msvc_compat_args += a
 815   endif
 816 endforeach
 817
 818 if host_machine.cpu_family().startswith('x86')
 819   pre_args += '-DUSE_SSE41'
 820   with_sse41 = true
 821   sse41_args = ['-msse4.1']
 822
 823   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 824   # that's not guaranteed
 825   if host_machine.cpu_family() == 'x86'
 826     sse41_args += '-mstackrealign'
 827   endif
 828 else
 829   with_sse41 = false
 830   sse41_args = []
 831 endif
 832
 833 # Check for GCC style atomics
 834 dep_atomic = declare_dependency()
 835
 836 if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
 837                name : 'GCC atomic builtins')
 838   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 839
 840   # Not all atomic calls can be turned into lock-free instructions, in which
 841   # GCC will make calls into the libatomic library. Check whether we need to
 842   # link with -latomic.
 843   #
 844   # This can happen for 64-bit atomic operations on 32-bit architectures such
 845   # as ARM.
 846   if not cc.links('''#include <stdint.h>
 847                      int main() {
 848                        uint64_t n;
 849                        return (int)__atomic_load_n(&n, __ATOMIC_ACQUIRE);
 850                      }''',
 851                   name : 'GCC atomic builtins required -latomic')
 852     dep_atomic = cc.find_library('atomic')
 853   endif
 854 endif
 855 if not cc.links('''#include <stdint.h>
 856                    uint64_t v;
 857                    int main() {
 858                      return __sync_add_and_fetch(&v, (uint64_t)1);
 859                    }''',
 860                 name : 'GCC 64bit atomics')
 861   pre_args += '-DMISSING_64_BIT_ATOMICS'
 862 endif
 863
 864 # TODO: endian
 865 # TODO: powr8
 866 # TODO: shared/static? Is this even worth doing?
 867
 868 # Building x86 assembly code requires running x86 binaries. It is possible for
 869 # x86_64 OSes to run x86 binaries, so don't disable asm in those cases
 870 # TODO: it should be possible to use an exe_wrapper to run the binary during
 871 # the build.
 872 if meson.is_cross_build()
 873   if not (build_machine.cpu_family() == 'x86_64' and host_machine.cpu_family() == 'x86'
 874           and build_machine.system() == host_machine.system())
 875     message('Cross compiling to x86 from non-x86, disabling asm')
 876     with_asm = false
 877   endif
 878 endif
 879
 880 with_asm_arch = ''
 881 if with_asm
 882   # TODO: SPARC and PPC
 883   if host_machine.cpu_family() == 'x86'
 884     if system_has_kms_drm
 885       with_asm_arch = 'x86'
 886       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 887                    '-DUSE_SSE_ASM']
 888     endif
 889   elif host_machine.cpu_family() == 'x86_64'
 890     if system_has_kms_drm
 891       with_asm_arch = 'x86_64'
 892       pre_args += ['-DUSE_X86_64_ASM']
 893     endif
 894   elif host_machine.cpu_family() == 'arm'
 895     if system_has_kms_drm
 896       with_asm_arch = 'arm'
 897       pre_args += ['-DUSE_ARM_ASM']
 898     endif
 899   elif host_machine.cpu_family() == 'aarch64'
 900     if system_has_kms_drm
 901       with_asm_arch = 'aarch64'
 902       pre_args += ['-DUSE_AARCH64_ASM']
 903     endif
 904   endif
 905 endif
 906
 907 # Check for standard headers and functions
 908 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 909   pre_args += '-DMAJOR_IN_SYSMACROS'
 910 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 911   pre_args += '-DMAJOR_IN_MKDEV'
 912 endif
 913
 914 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h']
 915   if cc.compiles('#include <@0@>'.format(h), name : '@0@ works'.format(h))
 916     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 917   endif
 918 endforeach
 919
 920 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get', 'memfd_create']
 921   if cc.has_function(f)
 922     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 923   endif
 924 endforeach
 925
 926 # strtod locale support
 927 if cc.links('''
 928     #define _GNU_SOURCE
 929     #include <stdlib.h>
 930     #include <locale.h>
 931     #ifdef HAVE_XLOCALE_H
 932     #include <xlocale.h>
 933     #endif
 934     int main() {
 935       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 936       const char *s = "1.0";
 937       char *end;
 938       double d = strtod_l(s, end, loc);
 939       float f = strtof_l(s, end, loc);
 940       freelocale(loc);
 941       return 0;
 942     }''',
 943     extra_args : pre_args,
 944     name : 'strtod has locale support')
 945   pre_args += '-DHAVE_STRTOD_L'
 946 endif
 947
 948 # Check for some linker flags
 949 ld_args_bsymbolic = []
 950 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
 951   ld_args_bsymbolic += '-Wl,-Bsymbolic'
 952 endif
 953 ld_args_gc_sections = []
 954 if cc.links('static char unused() { return 5; } int main() { return 0; }',
 955             args : '-Wl,--gc-sections', name : 'gc-sections')
 956   ld_args_gc_sections += '-Wl,--gc-sections'
 957 endif
 958 with_ld_version_script = false
 959 if cc.links('int main() { return 0; }',
 960             args : '-Wl,--version-script=@0@'.format(
 961               join_paths(meson.source_root(), 'build-support/conftest.map')),
 962             name : 'version-script')
 963   with_ld_version_script = true
 964 endif
 965 with_ld_dynamic_list = false
 966 if cc.links('int main() { return 0; }',
 967             args : '-Wl,--dynamic-list=@0@'.format(
 968               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
 969             name : 'dynamic-list')
 970   with_ld_dynamic_list = true
 971 endif
 972 ld_args_build_id = []
 973 if build_machine.system() != 'darwin'
 974    ld_args_build_id += '-Wl,--build-id=sha1'
 975 endif
 976
 977 # check for dl support
 978 if cc.has_function('dlopen')
 979   dep_dl = []
 980 else
 981   dep_dl = cc.find_library('dl')
 982 endif
 983 if cc.has_function('dladdr', dependencies : dep_dl)
 984   # This is really only required for megadrivers
 985   pre_args += '-DHAVE_DLADDR'
 986 endif
 987
 988 if cc.has_function('dl_iterate_phdr')
 989   pre_args += '-DHAVE_DL_ITERATE_PHDR'
 990 elif with_intel_vk
 991   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
 992 elif with_dri_i965 and get_option('shader-cache')
 993   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
 994 endif
 995
 996 # Determine whether or not the rt library is needed for time functions
 997 if cc.has_function('clock_gettime')
 998   dep_clock = []
 999 else
1000   dep_clock = cc.find_library('rt')
1001 endif
1002
1003 with_gallium_drisw_kms = false
1004 dep_libdrm = dependency('libdrm', version : '>= 2.4.75',
1005                         required : with_dri2 or with_dri3)
1006 if dep_libdrm.found()
1007   pre_args += '-DHAVE_LIBDRM'
1008   if with_dri_platform == 'drm' and with_dri
1009     with_gallium_drisw_kms = true
1010   endif
1011 endif
1012
1013 # TODO: some of these may be conditional
1014 dep_zlib = dependency('zlib', version : '>= 1.2.3')
1015 pre_args += '-DHAVE_ZLIB'
1016 dep_thread = dependency('threads')
1017 if dep_thread.found() and host_machine.system() != 'windows'
1018   pre_args += '-DHAVE_PTHREAD'
1019 endif
1020 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600 or with_gallium_opencl
1021   dep_elf = dependency('libelf', required : false)
1022   if not dep_elf.found()
1023     dep_elf = cc.find_library('elf')
1024   endif
1025 else
1026   dep_elf = []
1027 endif
1028 dep_expat = dependency('expat')
1029 # this only exists on linux so either this is linux and it will be found, or
1030 # its not linux and and wont
1031 dep_m = cc.find_library('m', required : false)
1032
1033 dep_libdrm_amdgpu = []
1034 dep_libdrm_radeon = []
1035 dep_libdrm_nouveau = []
1036 dep_libdrm_etnaviv = []
1037 dep_libdrm_freedreno = []
1038 if with_amd_vk or with_gallium_radeonsi
1039   dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.91')
1040 endif
1041 if (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1042     with_gallium_r300 or with_gallium_r600)
1043   dep_libdrm_radeon = dependency('libdrm_radeon', version : '>= 2.4.71')
1044 endif
1045 if with_gallium_nouveau or with_dri_nouveau
1046   dep_libdrm_nouveau = dependency('libdrm_nouveau', version : '>= 2.4.66')
1047 endif
1048 if with_gallium_etnaviv
1049   dep_libdrm_etnaviv = dependency('libdrm_etnaviv', version : '>= 2.4.82')
1050 endif
1051 if with_gallium_freedreno
1052   dep_libdrm_freedreno = dependency('libdrm_freedreno', version : '>= 2.4.91')
1053 endif
1054
1055 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
1056 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1057   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
1058   if with_gallium_r600
1059     llvm_modules += 'asmparser'
1060   endif
1061 endif
1062 if with_gallium_opencl
1063   llvm_modules += [
1064     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1065     'lto', 'option', 'objcarcopts', 'profiledata',
1066   ]
1067   # TODO: optional modules
1068 endif
1069
1070 if with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1071   _llvm_version = '>= 4.0.0'
1072 elif with_gallium_opencl or with_gallium_r600
1073   _llvm_version = '>= 3.9.0'
1074 else
1075   _llvm_version = '>= 3.3.0'
1076 endif
1077
1078 _llvm = get_option('llvm')
1079 if _llvm == 'auto'
1080   dep_llvm = dependency(
1081     'llvm', version : _llvm_version, modules : llvm_modules,
1082     required : with_amd_vk or with_gallium_radeonsi or with_gallium_swr or with_gallium_opencl,
1083   )
1084   with_llvm = dep_llvm.found()
1085 elif _llvm == 'true'
1086   dep_llvm = dependency('llvm', version : _llvm_version, modules : llvm_modules)
1087   with_llvm = true
1088 else
1089   dep_llvm = []
1090   with_llvm = false
1091 endif
1092 if with_llvm
1093   _llvm_version = dep_llvm.version().split('.')
1094   # Development versions of LLVM have an 'svn' or 'git' suffix, we don't want
1095   # that for our version checks.
1096   # svn suffixes are stripped by meson as of 0.43, and git suffixes are
1097   # strippped as of 0.44, but we support older meson versions.
1098
1099   # 3 digits versions in LLVM only started from 3.4.1 on
1100   if dep_llvm.version().version_compare('>= 3.4.1')
1101     _llvm_patch = _llvm_version[2]
1102   else
1103     _llvm_patch = '0'
1104   endif
1105
1106   if _llvm_patch.endswith('svn')
1107     _llvm_patch = _llvm_patch.split('s')[0]
1108   elif _llvm_patch.contains('git')
1109     _llvm_patch = _llvm_patch.split('g')[0]
1110   endif
1111   pre_args += [
1112     '-DHAVE_LLVM=0x0@0@0@1@'.format(_llvm_version[0], _llvm_version[1]),
1113     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
1114   ]
1115 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1116   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1117 endif
1118
1119 dep_glvnd = []
1120 if with_glvnd
1121   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1122   pre_args += '-DUSE_LIBGLVND=1'
1123 endif
1124
1125 if with_valgrind != 'false'
1126   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1127   if dep_valgrind.found()
1128     pre_args += '-DHAVE_VALGRIND'
1129   endif
1130 else
1131   dep_valgrind = []
1132 endif
1133
1134 # pthread stubs. Lets not and say we didn't
1135
1136 prog_bison = find_program('bison', required : with_any_opengl)
1137 prog_flex = find_program('flex', required : with_any_opengl)
1138
1139 dep_selinux = []
1140 if get_option('selinux')
1141   dep_selinux = dependency('libselinux')
1142   pre_args += '-DMESA_SELINUX'
1143 endif
1144
1145 # TODO: llvm-prefix and llvm-shared-libs
1146
1147 if with_libunwind != 'false'
1148   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1149   if dep_unwind.found()
1150     pre_args += '-DHAVE_LIBUNWIND'
1151   endif
1152 else
1153   dep_unwind = []
1154 endif
1155
1156 # TODO: gallium-hud
1157
1158 if with_osmesa != 'none'
1159   if with_osmesa == 'classic' and not with_dri_swrast
1160     error('OSMesa classic requires dri (classic) swrast.')
1161   endif
1162   if with_osmesa == 'gallium' and not with_gallium_softpipe
1163     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1164   endif
1165   osmesa_lib_name = 'OSMesa'
1166   osmesa_bits = get_option('osmesa-bits')
1167   if osmesa_bits != '8'
1168     if with_dri or with_glx != 'disabled'
1169       error('OSMesa bits must be 8 if building glx or dir based drivers')
1170     endif
1171     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1172     pre_args += [
1173       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1174     ]
1175   endif
1176 endif
1177
1178 # TODO: symbol mangling
1179
1180 if with_platform_wayland
1181   prog_wl_scanner = find_program('wayland-scanner')
1182   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1183   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1184   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1185   wayland_dmabuf_xml = join_paths(
1186     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1187     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1188   )
1189   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1190 else
1191   prog_wl_scanner = []
1192   dep_wl_protocols = []
1193   dep_wayland_client = []
1194   dep_wayland_server = []
1195   wayland_dmabuf_xml = ''
1196 endif
1197
1198 dep_x11 = []
1199 dep_xext = []
1200 dep_xdamage = []
1201 dep_xfixes = []
1202 dep_x11_xcb = []
1203 dep_xcb = []
1204 dep_xcb_glx = []
1205 dep_xcb_dri2 = []
1206 dep_xcb_dri3 = []
1207 dep_dri2proto = []
1208 dep_glproto = []
1209 dep_xxf86vm = []
1210 dep_xcb_dri3 = []
1211 dep_xcb_present = []
1212 dep_xcb_sync = []
1213 dep_xcb_xfixes = []
1214 dep_xshmfence = []
1215 if with_platform_x11
1216   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1217     dep_x11 = dependency('x11')
1218     dep_xext = dependency('xext')
1219     dep_xcb = dependency('xcb')
1220   elif with_glx == 'dri'
1221     dep_x11 = dependency('x11')
1222     dep_xext = dependency('xext')
1223     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1224     dep_xfixes = dependency('xfixes')
1225     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1226     dep_xxf86vm = dependency('xxf86vm', required : false)
1227   endif
1228   if (with_any_vk or with_glx == 'dri' or
1229        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1230         with_gallium_omx != 'disabled'))
1231     dep_xcb = dependency('xcb')
1232     dep_x11_xcb = dependency('x11-xcb')
1233   endif
1234   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1235     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1236
1237     if with_dri3
1238       pre_args += '-DHAVE_DRI3'
1239       dep_xcb_dri3 = dependency('xcb-dri3')
1240       dep_xcb_present = dependency('xcb-present')
1241       # until xcb-dri3 has been around long enough to make a hard-dependency:
1242       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1243           dep_xcb_present.version().version_compare('>= 1.13'))
1244         pre_args += '-DHAVE_DRI3_MODIFIERS'
1245       endif
1246       dep_xcb_sync = dependency('xcb-sync')
1247       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1248     endif
1249   endif
1250   if with_glx == 'dri'
1251     if with_dri_platform == 'drm'
1252       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1253     endif
1254     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1255   endif
1256   if (with_egl or (
1257       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1258       with_gallium_omx != 'disabled'))
1259     dep_xcb_xfixes = dependency('xcb-xfixes')
1260   endif
1261 endif
1262
1263 if get_option('gallium-extra-hud')
1264   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1265 endif
1266
1267 _sensors = get_option('lmsensors')
1268 if _sensors != 'false'
1269   dep_lmsensors = cc.find_library('libsensors', required : _sensors == 'true')
1270   if dep_lmsensors.found()
1271     pre_args += '-DHAVE_LIBSENSORS=1'
1272   endif
1273 else
1274   dep_lmsensors = []
1275 endif
1276
1277 # TODO: gallium tests
1278
1279 # TODO: various libdirs
1280
1281 # TODO: gallium driver dirs
1282
1283 # FIXME: this is a workaround for #2326
1284 prog_touch = find_program('touch')
1285 dummy_cpp = custom_target(
1286   'dummy_cpp',
1287   output : 'dummy.cpp',
1288   command : [prog_touch, '@OUTPUT@'],
1289 )
1290
1291 foreach a : pre_args
1292   add_project_arguments(a, language : ['c', 'cpp'])
1293 endforeach
1294 foreach a : c_args
1295   add_project_arguments(a, language : ['c'])
1296 endforeach
1297 foreach a : cpp_args
1298   add_project_arguments(a, language : ['cpp'])
1299 endforeach
1300
1301 inc_include = include_directories('include')
1302
1303 gl_priv_reqs = [
1304   'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1305   'xcb-glx >= 1.8.1']
1306 if dep_libdrm.found()
1307   gl_priv_reqs += 'libdrm >= 2.4.75'
1308 endif
1309 if dep_xxf86vm != [] and dep_xxf86vm.found()
1310   gl_priv_reqs += 'xxf86vm'
1311 endif
1312 if with_dri_platform == 'drm'
1313   gl_priv_reqs += 'xcb-dri2 >= 1.8'
1314 endif
1315
1316 gl_priv_libs = []
1317 if dep_thread.found()
1318   gl_priv_libs += ['-lpthread', '-pthread']
1319 endif
1320 if dep_m.found()
1321   gl_priv_libs += '-lm'
1322 endif
1323 if dep_dl != [] and dep_dl.found()
1324   gl_priv_libs += '-ldl'
1325 endif
1326
1327 pkg = import('pkgconfig')
1328
1329 env_test = environment()
1330 env_test.set('NM', find_program('nm').path())
1331
1332 subdir('include')
1333 subdir('bin')
1334 subdir('src')