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 : '>= 0.44.1',
  29   default_options : ['buildtype=debugoptimized', 'c_std=c99', 'cpp_std=c++11']
  30 )
  31
  32 cc = meson.get_compiler('c')
  33 cpp = meson.get_compiler('cpp')
  34
  35 null_dep = dependency('', required : false)
  36
  37 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  38
  39 # Arguments for the preprocessor, put these in a separate array from the C and
  40 # C++ (cpp in meson terminology) arguments since they need to be added to the
  41 # default arguments for both C and C++.
  42 pre_args = [
  43   '-D__STDC_CONSTANT_MACROS',
  44   '-D__STDC_FORMAT_MACROS',
  45   '-D__STDC_LIMIT_MACROS',
  46   '-DVERSION="@0@"'.format(meson.project_version()),
  47   '-DPACKAGE_VERSION=VERSION',
  48   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  49 ]
  50
  51 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  52 with_tests = get_option('build-tests')
  53 with_valgrind = get_option('valgrind')
  54 with_libunwind = get_option('libunwind')
  55 with_asm = get_option('asm')
  56 with_glx_read_only_text = get_option('glx-read-only-text')
  57 with_osmesa = get_option('osmesa')
  58 with_swr_arches = get_option('swr-arches')
  59 with_tools = get_option('tools')
  60 if with_tools.contains('all')
  61   with_tools = ['freedreno', 'glsl', 'intel', 'nir', 'nouveau']
  62 endif
  63 if get_option('texture-float')
  64   pre_args += '-DTEXTURE_FLOAT_ENABLED'
  65   warning('Floating-point texture enabled. Please consult docs/patents.txt and your lawyer before building mesa.')
  66 endif
  67
  68 dri_drivers_path = get_option('dri-drivers-path')
  69 if dri_drivers_path == ''
  70   dri_drivers_path = join_paths(get_option('libdir'), 'dri')
  71 endif
  72 dri_search_path = get_option('dri-search-path')
  73 if dri_search_path == ''
  74   dri_search_path = join_paths(get_option('prefix'), dri_drivers_path)
  75 endif
  76
  77 with_gles1 = get_option('gles1')
  78 with_gles2 = get_option('gles2')
  79 with_opengl = get_option('opengl')
  80 with_any_opengl = with_opengl or with_gles1 or with_gles2
  81 # Only build shared_glapi if at least one OpenGL API is enabled
  82 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  83
  84
  85 # shared-glapi is required if at least two OpenGL APIs are being built
  86 if not with_shared_glapi
  87   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  88       or (with_gles2 and with_opengl))
  89     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  90   endif
  91 endif
  92
  93 # We require OpenGL for OpenGL ES
  94 if (with_gles1 or with_gles2) and not with_opengl
  95   error('building OpenGL ES without OpenGL is not supported.')
  96 endif
  97
  98 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
  99
 100 _drivers = get_option('dri-drivers')
 101 if _drivers.contains('auto')
 102   if system_has_kms_drm
 103     # TODO: PPC, Sparc
 104     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 105       _drivers = ['i915', 'i965', 'r100', 'r200', 'nouveau']
 106     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 107       _drivers = []
 108     else
 109       error('Unknown architecture. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 110     endif
 111   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 112     # only swrast would make sense here, but gallium swrast is a much better default
 113     _drivers = []
 114   else
 115     error('Unknown OS. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
 116   endif
 117 endif
 118
 119 with_dri_i915 = _drivers.contains('i915')
 120 with_dri_i965 = _drivers.contains('i965')
 121 with_dri_r100 = _drivers.contains('r100')
 122 with_dri_r200 = _drivers.contains('r200')
 123 with_dri_nouveau = _drivers.contains('nouveau')
 124 with_dri_swrast = _drivers.contains('swrast')
 125
 126 with_dri = _drivers.length() != 0 and _drivers != ['']
 127
 128 _drivers = get_option('gallium-drivers')
 129 if _drivers.contains('auto')
 130   if system_has_kms_drm
 131     # TODO: PPC, Sparc
 132     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 133       _drivers = [
 134         'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast'
 135       ]
 136     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 137       _drivers = [
 138         'pl111', 'v3d', 'vc4', 'freedreno', 'etnaviv', 'imx', 'nouveau',
 139         'tegra', 'virgl', 'swrast',
 140       ]
 141     else
 142       error('Unknown architecture. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 143     endif
 144   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 145     _drivers = ['swrast']
 146   else
 147     error('Unknown OS. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 148   endif
 149 endif
 150 with_gallium_pl111 = _drivers.contains('pl111')
 151 with_gallium_radeonsi = _drivers.contains('radeonsi')
 152 with_gallium_r300 = _drivers.contains('r300')
 153 with_gallium_r600 = _drivers.contains('r600')
 154 with_gallium_nouveau = _drivers.contains('nouveau')
 155 with_gallium_freedreno = _drivers.contains('freedreno')
 156 with_gallium_softpipe = _drivers.contains('swrast')
 157 with_gallium_vc4 = _drivers.contains('vc4')
 158 with_gallium_v3d = _drivers.contains('v3d')
 159 with_gallium_etnaviv = _drivers.contains('etnaviv')
 160 with_gallium_imx = _drivers.contains('imx')
 161 with_gallium_tegra = _drivers.contains('tegra')
 162 with_gallium_i915 = _drivers.contains('i915')
 163 with_gallium_svga = _drivers.contains('svga')
 164 with_gallium_virgl = _drivers.contains('virgl')
 165 with_gallium_swr = _drivers.contains('swr')
 166
 167 with_gallium = _drivers.length() != 0 and _drivers != ['']
 168
 169 if with_gallium and system_has_kms_drm
 170   _glx = get_option('glx')
 171   _egl = get_option('egl')
 172   if _glx == 'dri' or _egl == 'true' or (_glx == 'disabled' and _egl != 'false')
 173     with_dri = true
 174   endif
 175 endif
 176
 177 _vulkan_drivers = get_option('vulkan-drivers')
 178 if _vulkan_drivers.contains('auto')
 179   if system_has_kms_drm
 180     if host_machine.cpu_family().startswith('x86')
 181       _vulkan_drivers = ['amd', 'intel']
 182     else
 183       error('Unknown architecture. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 184     endif
 185   elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
 186     # No vulkan driver supports windows or macOS currently
 187     _vulkan_drivers = []
 188   else
 189     error('Unknown OS. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 190   endif
 191 endif
 192
 193 with_intel_vk = _vulkan_drivers.contains('intel')
 194 with_amd_vk = _vulkan_drivers.contains('amd')
 195 with_any_vk = _vulkan_drivers.length() != 0 and _vulkan_drivers != ['']
 196
 197 if with_dri_swrast and (with_gallium_softpipe or with_gallium_swr)
 198   error('Only one swrast provider can be built')
 199 endif
 200 if with_dri_i915 and with_gallium_i915
 201   error('Only one i915 provider can be built')
 202 endif
 203 if with_gallium_imx and not with_gallium_etnaviv
 204   error('IMX driver requires etnaviv driver')
 205 endif
 206 if with_gallium_pl111 and not with_gallium_vc4
 207   error('pl111 driver requires vc4 driver')
 208 endif
 209 if with_gallium_tegra and not with_gallium_nouveau
 210   error('tegra driver requires nouveau driver')
 211 endif
 212
 213 if host_machine.system() == 'darwin'
 214   with_dri_platform = 'apple'
 215 elif ['windows', 'cygwin'].contains(host_machine.system())
 216   with_dri_platform = 'windows'
 217 elif system_has_kms_drm
 218   with_dri_platform = 'drm'
 219 else
 220   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 221   # assert here that one of those cases has been met.
 222   # FIXME: GNU (hurd) ends up here as well, but meson doesn't officially
 223   # support Hurd at time of writing (2017/11)
 224   # FIXME: illumos ends up here as well
 225   with_dri_platform = 'none'
 226 endif
 227
 228 _platforms = get_option('platforms')
 229 if _platforms.contains('auto')
 230   if system_has_kms_drm
 231     _platforms = ['x11', 'wayland', 'drm', 'surfaceless']
 232   elif ['darwin', 'windows', 'cygwin'].contains(host_machine.system())
 233     _platforms = ['x11', 'surfaceless']
 234   elif ['haiku'].contains(host_machine.system())
 235     _platforms = ['haiku']
 236   else
 237     error('Unknown OS. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.')
 238   endif
 239 endif
 240
 241 with_platform_android = _platforms.contains('android')
 242 with_platform_x11 = _platforms.contains('x11')
 243 with_platform_wayland = _platforms.contains('wayland')
 244 with_platform_drm = _platforms.contains('drm')
 245 with_platform_haiku = _platforms.contains('haiku')
 246 with_platform_surfaceless = _platforms.contains('surfaceless')
 247
 248 with_platforms = false
 249 if _platforms.length() != 0 and _platforms != ['']
 250   with_platforms = true
 251   egl_native_platform = _platforms[0]
 252 endif
 253
 254 with_glx = get_option('glx')
 255 if with_glx == 'auto'
 256   if with_dri
 257     with_glx = 'dri'
 258   elif with_platform_haiku
 259     with_glx = 'disabled'
 260   elif with_gallium
 261     # Even when building just gallium drivers the user probably wants dri
 262     with_glx = 'dri'
 263     with_dri = true
 264   elif with_platform_x11 and with_any_opengl and not with_any_vk
 265     # The automatic behavior should not be to turn on xlib based glx when
 266     # building only vulkan drivers
 267     with_glx = 'xlib'
 268   else
 269     with_glx = 'disabled'
 270   endif
 271 endif
 272
 273 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 274   with_gles1 = false
 275   with_gles2 = false
 276   with_opengl = false
 277   with_any_opengl = false
 278   with_shared_glapi = false
 279 endif
 280
 281 _gbm = get_option('gbm')
 282 if _gbm == 'auto'
 283   with_gbm = system_has_kms_drm and with_dri
 284 else
 285   with_gbm = _gbm == 'true'
 286 endif
 287 if with_gbm and not system_has_kms_drm
 288   error('GBM only supports DRM/KMS platforms')
 289 endif
 290
 291 _egl = get_option('egl')
 292 if _egl == 'auto'
 293   with_egl = with_dri and with_shared_glapi and with_platforms
 294 elif _egl == 'true'
 295   if not with_dri
 296     error('EGL requires dri')
 297   elif not with_shared_glapi
 298     error('EGL requires shared-glapi')
 299   elif not with_platforms
 300     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 301   elif not ['disabled', 'dri'].contains(with_glx)
 302     error('EGL requires dri, but a GLX is being built without dri')
 303   endif
 304   with_egl = true
 305 else
 306   with_egl = false
 307 endif
 308
 309 if with_egl and not (with_platform_drm or with_platform_surfaceless)
 310   if with_gallium_radeonsi
 311     error('RadeonSI requires drm or surfaceless platform when using EGL')
 312   endif
 313   if with_gallium_virgl
 314     error('Virgl requires drm or surfaceless platform when using EGL')
 315   endif
 316 endif
 317
 318 pre_args += '-DGLX_USE_TLS'
 319 if with_glx != 'disabled'
 320   if not (with_platform_x11 and with_any_opengl)
 321     error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 322   elif with_glx == 'gallium-xlib'
 323     if not with_gallium
 324       error('Gallium-xlib based GLX requires at least one gallium driver')
 325     elif not with_gallium_softpipe
 326       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 327     elif with_dri
 328       error('gallium-xlib conflicts with any dri driver')
 329     endif
 330   elif with_glx == 'xlib'
 331     if with_dri
 332       error('xlib conflicts with any dri driver')
 333     endif
 334   elif with_glx == 'dri'
 335     if not with_dri
 336       error('dri based GLX requires at least one DRI driver')
 337     elif not with_shared_glapi
 338       error('dri based GLX requires shared-glapi')
 339     endif
 340   endif
 341 endif
 342
 343 with_glvnd = get_option('glvnd')
 344 if with_glvnd
 345   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 346     error('Cannot build glvnd support for GLX that is not DRI based.')
 347   elif with_glx == 'disabled' and not with_egl
 348     error('glvnd requires DRI based GLX and/or EGL')
 349   endif
 350 endif
 351
 352 # TODO: toggle for this
 353 with_glx_direct = true
 354
 355 if with_vulkan_icd_dir == ''
 356   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 357 endif
 358
 359 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 360 _dri3 = get_option('dri3')
 361 if _dri3 == 'auto'
 362   with_dri3 = system_has_kms_drm and with_dri2
 363 else
 364   with_dri3 = _dri3 == 'true'
 365 endif
 366
 367 if with_any_vk and (with_platform_x11 and not with_dri3)
 368   error('Vulkan drivers require dri3 for X11 support')
 369 endif
 370 if with_dri or with_gallium
 371   if with_glx == 'disabled' and not with_egl and not with_platform_haiku
 372     error('building dri or gallium drivers require at least one window system')
 373   endif
 374 endif
 375
 376 prog_pkgconfig = find_program('pkg-config')
 377
 378 _vdpau = get_option('gallium-vdpau')
 379 if not system_has_kms_drm
 380   if _vdpau == 'true'
 381     error('VDPAU state tracker can only be build on unix-like OSes.')
 382   else
 383     _vdpau = 'false'
 384   endif
 385 elif not with_platform_x11
 386   if _vdpau == 'true'
 387     error('VDPAU state tracker requires X11 support.')
 388   else
 389     _vdpau = 'false'
 390   endif
 391 elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 392           with_gallium_nouveau)
 393   if _vdpau == 'true'
 394     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 395   else
 396     _vdpau = 'false'
 397   endif
 398 elif _vdpau == 'auto'
 399   _vdpau = 'true'
 400 endif
 401 with_gallium_vdpau = _vdpau == 'true'
 402 dep_vdpau = null_dep
 403 if with_gallium_vdpau
 404   dep_vdpau = dependency('vdpau', version : '>= 1.1')
 405   dep_vdpau = declare_dependency(
 406     compile_args : run_command(prog_pkgconfig, ['vdpau', '--cflags']).stdout().split()
 407   )
 408 endif
 409
 410 if with_gallium_vdpau
 411   pre_args += '-DHAVE_ST_VDPAU'
 412 endif
 413 vdpau_drivers_path = get_option('vdpau-libs-path')
 414 if vdpau_drivers_path == ''
 415   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 416 endif
 417
 418 _xvmc = get_option('gallium-xvmc')
 419 if not system_has_kms_drm
 420   if _xvmc == 'true'
 421     error('XVMC state tracker can only be build on unix-like OSes.')
 422   else
 423     _xvmc = 'false'
 424   endif
 425 elif not with_platform_x11
 426   if _xvmc == 'true'
 427     error('XVMC state tracker requires X11 support.')
 428   else
 429     _xvmc = 'false'
 430   endif
 431 elif not (with_gallium_r600 or with_gallium_nouveau)
 432   if _xvmc == 'true'
 433     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 434   else
 435     _xvmc = 'false'
 436   endif
 437 elif _xvmc == 'auto'
 438   _xvmc = 'true'
 439 endif
 440 with_gallium_xvmc = _xvmc == 'true'
 441 dep_xvmc = null_dep
 442 if with_gallium_xvmc
 443   dep_xvmc = dependency('xvmc', version : '>= 1.0.6')
 444 endif
 445
 446 xvmc_drivers_path = get_option('xvmc-libs-path')
 447 if xvmc_drivers_path == ''
 448   xvmc_drivers_path = get_option('libdir')
 449 endif
 450
 451 _omx = get_option('gallium-omx')
 452 if not system_has_kms_drm
 453   if ['auto', 'disabled'].contains(_omx)
 454     _omx = 'disabled'
 455   else
 456     error('OMX state tracker can only be built on unix-like OSes.')
 457   endif
 458 elif not (with_platform_x11 or with_platform_drm)
 459   if ['auto', 'disabled'].contains(_omx)
 460     _omx = 'disabled'
 461   else
 462     error('OMX state tracker requires X11 or drm platform support.')
 463   endif
 464 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 465   if ['auto', 'disabled'].contains(_omx)
 466     _omx = 'disabled'
 467   else
 468     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 469   endif
 470 endif
 471 with_gallium_omx = _omx
 472 dep_omx = null_dep
 473 dep_omx_other = []
 474 if ['auto', 'bellagio'].contains(_omx)
 475   dep_omx = dependency(
 476     'libomxil-bellagio', required : _omx == 'bellagio'
 477   )
 478   if dep_omx.found()
 479     with_gallium_omx = 'bellagio'
 480   endif
 481 endif
 482 if ['auto', 'tizonia'].contains(_omx)
 483   if with_dri and with_egl
 484     dep_omx = dependency(
 485       'libtizonia', version : '>= 0.10.0',
 486       required : _omx == 'tizonia',
 487     )
 488     dep_omx_other = [
 489       dependency('libtizplatform', required : _omx == 'tizonia'),
 490       dependency('tizilheaders', required : _omx == 'tizonia'),
 491     ]
 492     if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
 493       with_gallium_omx = 'tizonia'
 494     endif
 495   elif _omx == 'tizonia'
 496     error('OMX-Tizonia state tracker requires dri and egl')
 497   endif
 498 endif
 499 if _omx == 'auto'
 500   with_gallium_omx = 'disabled'
 501 else
 502   with_gallium_omx = _omx
 503 endif
 504
 505 pre_args += [
 506   '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
 507   '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
 508 ]
 509
 510
 511 omx_drivers_path = get_option('omx-libs-path')
 512
 513 if with_gallium_omx != 'disabled'
 514   # Figure out where to put the omx driver.
 515   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 516   # argument to meson's get_pkgconfig_variable method.
 517   if omx_drivers_path == ''
 518     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 519     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 520     if _omx_libdir == get_option('libdir')
 521       omx_drivers_path = _omx_drivers_dir
 522     else
 523       _omx_base_dir = []
 524       # This will fail on windows. Does OMX run on windows?
 525       _omx_libdir = _omx_libdir.split('/')
 526       _omx_drivers_dir = _omx_drivers_dir.split('/')
 527       foreach o : _omx_drivers_dir
 528         if not _omx_libdir.contains(o)
 529           _omx_base_dir += o
 530         endif
 531       endforeach
 532       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 533     endif
 534   endif
 535 endif
 536
 537 _va = get_option('gallium-va')
 538 if not system_has_kms_drm
 539   if _va == 'true'
 540     error('VA state tracker can only be built on unix-like OSes.')
 541   else
 542     _va = 'false'
 543   endif
 544 elif not (with_platform_x11 or with_platform_drm)
 545   if _va == 'true'
 546     error('VA state tracker requires X11 or drm or wayland platform support.')
 547   else
 548     _va = 'false'
 549   endif
 550 elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 551   if _va == 'true'
 552     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 553   else
 554     _va = 'false'
 555   endif
 556 elif _va == 'auto'
 557   _va = 'true'
 558 endif
 559 with_gallium_va = _va == 'true'
 560 dep_va = null_dep
 561 if with_gallium_va
 562   dep_va = dependency('libva', version : '>= 0.39.0')
 563   dep_va_headers = declare_dependency(
 564     compile_args : run_command(prog_pkgconfig, ['libva', '--cflags']).stdout().split()
 565   )
 566 endif
 567
 568 va_drivers_path = get_option('va-libs-path')
 569 if va_drivers_path == ''
 570   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 571 endif
 572
 573 _xa = get_option('gallium-xa')
 574 if not system_has_kms_drm
 575   if _xa == 'true'
 576     error('XA state tracker can only be built on unix-like OSes.')
 577   else
 578     _xa = 'false'
 579   endif
 580 elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 581           or with_gallium_svga)
 582   if _xa == 'true'
 583     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 584   else
 585     _xa = 'false'
 586   endif
 587 endif
 588 with_gallium_xa = _xa != 'false'
 589
 590 d3d_drivers_path = get_option('d3d-drivers-path')
 591 if d3d_drivers_path == ''
 592   d3d_drivers_path = join_paths(get_option('libdir'), 'd3d')
 593 endif
 594
 595 with_gallium_st_nine =  get_option('gallium-nine')
 596 if with_gallium_st_nine
 597   if not with_gallium_softpipe
 598     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 599   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 600             or with_gallium_r300 or with_gallium_svga or with_gallium_i915)
 601     error('The nine state tracker requires at least on non-swrast gallium driver.')
 602   endif
 603   if not with_dri3
 604     error('Using nine with wine requires dri3')
 605   endif
 606 endif
 607
 608 _opencl = get_option('gallium-opencl')
 609 if _opencl != 'disabled'
 610   if not with_gallium
 611     error('OpenCL Clover implementation requires at least one gallium driver.')
 612   endif
 613
 614   # TODO: alitvec?
 615   dep_clc = dependency('libclc')
 616   with_gallium_opencl = true
 617   with_opencl_icd = _opencl == 'icd'
 618 else
 619   dep_clc = null_dep
 620   with_gallium_opencl = false
 621   with_gallium_icd = false
 622 endif
 623
 624 gl_pkgconfig_c_flags = []
 625 if with_platform_x11
 626   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 627     pre_args += '-DHAVE_X11_PLATFORM'
 628   endif
 629   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 630     pre_args += '-DUSE_XSHM'
 631   else
 632     pre_args += '-DGLX_INDIRECT_RENDERING'
 633     if with_glx_direct
 634       pre_args += '-DGLX_DIRECT_RENDERING'
 635     endif
 636     if with_dri_platform == 'drm'
 637       pre_args += '-DGLX_USE_DRM'
 638     elif with_dri_platform == 'apple'
 639       pre_args += '-DGLX_USE_APPLEGL'
 640     elif with_dri_platform == 'windows'
 641       pre_args += '-DGLX_USE_WINDOWSGL'
 642     endif
 643   endif
 644 else
 645   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 646   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 647 endif
 648 if with_platform_drm
 649   if with_egl and not with_gbm
 650     error('EGL drm platform requires gbm')
 651   endif
 652   pre_args += '-DHAVE_DRM_PLATFORM'
 653 endif
 654 if with_platform_surfaceless
 655   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 656 endif
 657 if with_platform_android
 658   dep_android = [
 659     dependency('cutils'),
 660     dependency('hardware'),
 661     dependency('sync'),
 662   ]
 663   pre_args += '-DHAVE_ANDROID_PLATFORM'
 664 endif
 665 if with_platform_haiku
 666   pre_args += '-DHAVE_HAIKU_PLATFORM'
 667 endif
 668
 669 prog_python2 = find_program('python2')
 670 has_mako = run_command(prog_python2, '-c', 'import mako')
 671 if has_mako.returncode() != 0
 672   error('Python (2.x) mako module required to build mesa.')
 673 endif
 674
 675 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 676   error('When using GCC, version 4.4.6 or later is required.')
 677 endif
 678
 679 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 680 if get_option('buildtype') == 'debug'
 681   pre_args += '-DDEBUG'
 682 endif
 683
 684 if get_option('shader-cache')
 685   pre_args += '-DENABLE_SHADER_CACHE'
 686 elif with_amd_vk
 687   error('Radv requires shader cache support')
 688 endif
 689
 690 # Check for GCC style builtins
 691 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 692              'ffsll', 'popcount', 'popcountll', 'unreachable']
 693   if cc.has_function(b)
 694     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 695   endif
 696 endforeach
 697
 698 # check for GCC __attribute__
 699 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 700              'warn_unused_result', 'weak',]
 701   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 702                  name : '__attribute__((@0@))'.format(a))
 703     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 704   endif
 705 endforeach
 706 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 707                name : '__attribute__((format(...)))')
 708   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 709 endif
 710 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 711                name : '__attribute__((packed))')
 712   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 713 endif
 714 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 715                name : '__attribute__((returns_nonnull))')
 716   pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
 717 endif
 718 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 719                   int foo_hid(void) __attribute__((visibility("hidden")));
 720                   int foo_int(void) __attribute__((visibility("internal")));
 721                   int foo_pro(void) __attribute__((visibility("protected")));''',
 722                name : '__attribute__((visibility(...)))')
 723   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 724 endif
 725 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 726                name : '__attribute__((alias(...)))')
 727   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 728 endif
 729 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 730                name : '__attribute__((__noreturn__))')
 731   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 732 endif
 733
 734 # TODO: this is very incomplete
 735 if ['linux', 'cygwin'].contains(host_machine.system())
 736   pre_args += '-D_GNU_SOURCE'
 737 endif
 738
 739 # Check for generic C arguments
 740 c_args = []
 741 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 742              '-Werror=missing-prototypes', '-fno-math-errno',
 743              '-fno-trapping-math', '-Qunused-arguments']
 744   if cc.has_argument(a)
 745     c_args += a
 746   endif
 747 endforeach
 748 c_vis_args = []
 749 if cc.has_argument('-fvisibility=hidden')
 750   c_vis_args += '-fvisibility=hidden'
 751 endif
 752
 753 # Check for generic C++ arguments
 754 cpp_args = []
 755 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 756              '-Qunused-arguments']
 757   if cpp.has_argument(a)
 758     cpp_args += a
 759   endif
 760 endforeach
 761
 762 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
 763 # option is not supported. Hence, check for -Wfoo instead.
 764 if cpp.has_argument('-Wnon-virtual-dtor')
 765   cpp_args += '-Wno-non-virtual-dtor'
 766 endif
 767
 768 no_override_init_args = []
 769 foreach a : ['override-init', 'initializer-overrides']
 770   if cc.has_argument('-W' + a)
 771     no_override_init_args += '-Wno-' + a
 772   endif
 773 endforeach
 774
 775 cpp_vis_args = []
 776 if cpp.has_argument('-fvisibility=hidden')
 777   cpp_vis_args += '-fvisibility=hidden'
 778 endif
 779
 780 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 781 # in parts of the mesa code base that need to compile with old versions of
 782 # MSVC, mainly common code
 783 c_msvc_compat_args = []
 784 cpp_msvc_compat_args = []
 785 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 786   if cc.has_argument(a)
 787     c_msvc_compat_args += a
 788   endif
 789   if cpp.has_argument(a)
 790     cpp_msvc_compat_args += a
 791   endif
 792 endforeach
 793
 794 if host_machine.cpu_family().startswith('x86')
 795   pre_args += '-DUSE_SSE41'
 796   with_sse41 = true
 797   sse41_args = ['-msse4.1']
 798
 799   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 800   # that's not guaranteed
 801   if host_machine.cpu_family() == 'x86'
 802     sse41_args += '-mstackrealign'
 803   endif
 804 else
 805   with_sse41 = false
 806   sse41_args = []
 807 endif
 808
 809 # Check for GCC style atomics
 810 dep_atomic = null_dep
 811
 812 if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
 813                name : 'GCC atomic builtins')
 814   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 815
 816   # Not all atomic calls can be turned into lock-free instructions, in which
 817   # GCC will make calls into the libatomic library. Check whether we need to
 818   # link with -latomic.
 819   #
 820   # This can happen for 64-bit atomic operations on 32-bit architectures such
 821   # as ARM.
 822   if not cc.links('''#include <stdint.h>
 823                      int main() {
 824                        struct {
 825                          uint64_t *v;
 826                        } x;
 827                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE);
 828                      }''',
 829                   name : 'GCC atomic builtins required -latomic')
 830     dep_atomic = cc.find_library('atomic')
 831   endif
 832 endif
 833 if not cc.links('''#include <stdint.h>
 834                    uint64_t v;
 835                    int main() {
 836                      return __sync_add_and_fetch(&v, (uint64_t)1);
 837                    }''',
 838                 name : 'GCC 64bit atomics')
 839   pre_args += '-DMISSING_64_BIT_ATOMICS'
 840 endif
 841
 842 # TODO: endian
 843 # TODO: powr8
 844 # TODO: shared/static? Is this even worth doing?
 845
 846 # When cross compiling we generally need to turn off the use of assembly,
 847 # because mesa's assembly relies on building an executable for the host system,
 848 # and running it to get information about struct sizes. There is at least one
 849 # case of cross compiling where we can use asm, and that's x86_64 -> x86 when
 850 # host OS == build OS, since in that case the build machine can run the host's
 851 # binaries.
 852 if meson.is_cross_build()
 853   if build_machine.system() != host_machine.system()
 854     # TODO: It may be possible to do this with an exe_wrapper (like wine).
 855     message('Cross compiling from one OS to another, disabling assembly.')
 856     with_asm = false
 857   elif not (build_machine.cpu_family().startswith('x86') and host_machine.cpu_family() == 'x86')
 858     # FIXME: Gentoo always sets -m32 for x86_64 -> x86 builds, resulting in an
 859     # x86 -> x86 cross compile. We use startswith rather than == to handle this
 860     # case.
 861     # TODO: There may be other cases where the 64 bit version of the
 862     # architecture can run 32 bit binaries (aarch64 and armv7 for example)
 863     message('''
 864       Cross compiling to different architectures, and the host cannot run
 865       the build machine's binaries. Disabling assembly.
 866     ''')
 867     with_asm = false
 868   endif
 869 endif
 870
 871 with_asm_arch = ''
 872 if with_asm
 873   # TODO: SPARC and PPC
 874   if host_machine.cpu_family() == 'x86'
 875     if system_has_kms_drm
 876       with_asm_arch = 'x86'
 877       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 878                    '-DUSE_SSE_ASM']
 879
 880       if with_glx_read_only_text
 881          pre_args += ['-DGLX_X86_READONLY_TEXT']
 882       endif
 883     endif
 884   elif host_machine.cpu_family() == 'x86_64'
 885     if system_has_kms_drm
 886       with_asm_arch = 'x86_64'
 887       pre_args += ['-DUSE_X86_64_ASM']
 888     endif
 889   elif host_machine.cpu_family() == 'arm'
 890     if system_has_kms_drm
 891       with_asm_arch = 'arm'
 892       pre_args += ['-DUSE_ARM_ASM']
 893     endif
 894   elif host_machine.cpu_family() == 'aarch64'
 895     if system_has_kms_drm
 896       with_asm_arch = 'aarch64'
 897       pre_args += ['-DUSE_AARCH64_ASM']
 898     endif
 899   elif host_machine.cpu_family() == 'sparc64'
 900     if system_has_kms_drm
 901       with_asm_arch = 'sparc'
 902       pre_args += ['-DUSE_SPARC_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', 'endian.h']
 915   if cc.compiles('#include <@0@>'.format(h), name : '@0@'.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 = null_dep
 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 = null_dep
 999 else
1000   dep_clock = cc.find_library('rt')
1001 endif
1002
1003 # TODO: some of these may be conditional
1004 dep_zlib = dependency('zlib', version : '>= 1.2.3')
1005 pre_args += '-DHAVE_ZLIB'
1006 dep_thread = dependency('threads')
1007 if dep_thread.found() and host_machine.system() != 'windows'
1008   pre_args += '-DHAVE_PTHREAD'
1009 endif
1010 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600 or with_gallium_opencl
1011   dep_elf = dependency('libelf', required : false)
1012   if not dep_elf.found()
1013     dep_elf = cc.find_library('elf')
1014   endif
1015 else
1016   dep_elf = null_dep
1017 endif
1018 dep_expat = dependency('expat')
1019 # this only exists on linux so either this is linux and it will be found, or
1020 # its not linux and and wont
1021 dep_m = cc.find_library('m', required : false)
1022
1023 # Check for libdrm. various drivers have different libdrm version requirements,
1024 # but we always want to use the same version for all libdrm modules. That means
1025 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1026 # bar are both on use 2.4.3 for both of them
1027 dep_libdrm_amdgpu = null_dep
1028 dep_libdrm_radeon = null_dep
1029 dep_libdrm_nouveau = null_dep
1030 dep_libdrm_etnaviv = null_dep
1031 dep_libdrm_freedreno = null_dep
1032 dep_libdrm_intel = null_dep
1033
1034 _drm_amdgpu_ver = '2.4.91'
1035 _drm_radeon_ver = '2.4.71'
1036 _drm_nouveau_ver = '2.4.66'
1037 _drm_etnaviv_ver = '2.4.89'
1038 _drm_freedreno_ver = '2.4.92'
1039 _drm_intel_ver = '2.4.75'
1040 _drm_ver = '2.4.75'
1041
1042 _libdrm_checks = [
1043   ['intel', with_dri_i915 or with_gallium_i915],
1044   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1045   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1046               with_gallium_r300 or with_gallium_r600)],
1047   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1048   ['etnaviv', with_gallium_etnaviv],
1049   ['freedreno', with_gallium_freedreno],
1050 ]
1051
1052 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1053 # library.
1054 if with_gallium_vc4
1055   _drm_ver = '2.4.89'
1056 endif
1057
1058 # Loop over the enables versions and get the highest libdrm requirement for all
1059 # active drivers.
1060 foreach d : _libdrm_checks
1061   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1062   if d[1] and ver.version_compare('>' + _drm_ver)
1063     _drm_ver = ver
1064   endif
1065 endforeach
1066
1067 # Then get each libdrm module
1068 foreach d : _libdrm_checks
1069   if d[1]
1070     set_variable(
1071       'dep_libdrm_' + d[0],
1072       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1073     )
1074   endif
1075 endforeach
1076
1077 with_gallium_drisw_kms = false
1078 dep_libdrm = dependency(
1079   'libdrm', version : '>=' + _drm_ver,
1080   required : with_dri2 or with_dri3
1081 )
1082 if dep_libdrm.found()
1083   pre_args += '-DHAVE_LIBDRM'
1084   if with_dri_platform == 'drm' and with_dri
1085     with_gallium_drisw_kms = true
1086   endif
1087 endif
1088
1089 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
1090 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1091   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
1092   if with_gallium_r600
1093     llvm_modules += 'asmparser'
1094   endif
1095 endif
1096 if with_gallium_opencl
1097   llvm_modules += [
1098     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1099     'lto', 'option', 'objcarcopts', 'profiledata',
1100   ]
1101   # TODO: optional modules
1102 endif
1103
1104 if with_amd_vk or with_gallium_radeonsi
1105   _llvm_version = '>= 5.0.0'
1106 elif with_gallium_swr
1107   _llvm_version = '>= 4.0.0'
1108 elif with_gallium_opencl or with_gallium_r600
1109   _llvm_version = '>= 3.9.0'
1110 else
1111   _llvm_version = '>= 3.3.0'
1112 endif
1113
1114 _llvm = get_option('llvm')
1115 if _llvm == 'auto'
1116   dep_llvm = dependency(
1117     'llvm', version : _llvm_version, modules : llvm_modules,
1118     required : with_amd_vk or with_gallium_radeonsi or with_gallium_swr or with_gallium_opencl,
1119   )
1120   with_llvm = dep_llvm.found()
1121 elif _llvm == 'true'
1122   dep_llvm = dependency('llvm', version : _llvm_version, modules : llvm_modules)
1123   with_llvm = true
1124 else
1125   dep_llvm = null_dep
1126   with_llvm = false
1127 endif
1128 if with_llvm
1129   _llvm_version = dep_llvm.version().split('.')
1130   # Development versions of LLVM have an 'svn' or 'git' suffix, we don't want
1131   # that for our version checks.
1132   # svn suffixes are stripped by meson as of 0.43, and git suffixes are
1133   # strippped as of 0.44, but we support older meson versions.
1134
1135   # 3 digits versions in LLVM only started from 3.4.1 on
1136   if dep_llvm.version().version_compare('>= 3.4.1')
1137     _llvm_patch = _llvm_version[2]
1138   else
1139     _llvm_patch = '0'
1140   endif
1141
1142   if _llvm_patch.endswith('svn')
1143     _llvm_patch = _llvm_patch.split('s')[0]
1144   elif _llvm_patch.contains('git')
1145     _llvm_patch = _llvm_patch.split('g')[0]
1146   endif
1147   pre_args += [
1148     '-DHAVE_LLVM=0x0@0@0@1@'.format(_llvm_version[0], _llvm_version[1]),
1149     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
1150   ]
1151
1152   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1153   # programs, so we need to build all C++ code in mesa without rtti as well to
1154   # ensure that linking works.
1155   if dep_llvm.get_configtool_variable('has-rtti') == 'NO'
1156     cpp_args += '-fno-rtti'
1157   endif
1158 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1159   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1160 endif
1161
1162 dep_glvnd = null_dep
1163 if with_glvnd
1164   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1165   pre_args += '-DUSE_LIBGLVND=1'
1166 endif
1167
1168 if with_valgrind != 'false'
1169   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1170   if dep_valgrind.found()
1171     pre_args += '-DHAVE_VALGRIND'
1172   endif
1173 else
1174   dep_valgrind = null_dep
1175 endif
1176
1177 # pthread stubs. Lets not and say we didn't
1178
1179 prog_bison = find_program('bison', required : with_any_opengl)
1180 prog_flex = find_program('flex', required : with_any_opengl)
1181
1182 dep_selinux = null_dep
1183 if get_option('selinux')
1184   dep_selinux = dependency('libselinux')
1185   pre_args += '-DMESA_SELINUX'
1186 endif
1187
1188 # TODO: llvm-prefix and llvm-shared-libs
1189
1190 if with_libunwind != 'false'
1191   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1192   if dep_unwind.found()
1193     pre_args += '-DHAVE_LIBUNWIND'
1194   endif
1195 else
1196   dep_unwind = null_dep
1197 endif
1198
1199 # TODO: gallium-hud
1200
1201 if with_osmesa != 'none'
1202   if with_osmesa == 'classic' and not with_dri_swrast
1203     error('OSMesa classic requires dri (classic) swrast.')
1204   endif
1205   if with_osmesa == 'gallium' and not with_gallium_softpipe
1206     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1207   endif
1208   osmesa_lib_name = 'OSMesa'
1209   osmesa_bits = get_option('osmesa-bits')
1210   if osmesa_bits != '8'
1211     if with_dri or with_glx != 'disabled'
1212       error('OSMesa bits must be 8 if building glx or dir based drivers')
1213     endif
1214     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1215     pre_args += [
1216       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1217     ]
1218   endif
1219 endif
1220
1221 # TODO: symbol mangling
1222
1223 if with_platform_wayland
1224   prog_wl_scanner = find_program('wayland-scanner')
1225   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1226   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1227   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1228   if with_egl
1229     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1230     dep_wayland_egl_headers = declare_dependency(
1231       compile_args : run_command(prog_pkgconfig, ['wayland-egl-backend', '--cflags']).stdout().split())
1232   endif
1233   wayland_dmabuf_xml = join_paths(
1234     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1235     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1236   )
1237   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1238 else
1239   prog_wl_scanner = []
1240   dep_wl_protocols = null_dep
1241   dep_wayland_client = null_dep
1242   dep_wayland_server = null_dep
1243   wayland_dmabuf_xml = ''
1244 endif
1245
1246 dep_x11 = null_dep
1247 dep_xext = null_dep
1248 dep_xdamage = null_dep
1249 dep_xfixes = null_dep
1250 dep_x11_xcb = null_dep
1251 dep_xcb = null_dep
1252 dep_xcb_glx = null_dep
1253 dep_xcb_dri2 = null_dep
1254 dep_xcb_dri3 = null_dep
1255 dep_dri2proto = null_dep
1256 dep_glproto = null_dep
1257 dep_xxf86vm = null_dep
1258 dep_xcb_dri3 = null_dep
1259 dep_xcb_present = null_dep
1260 dep_xcb_sync = null_dep
1261 dep_xcb_xfixes = null_dep
1262 dep_xshmfence = null_dep
1263 if with_platform_x11
1264   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1265     dep_x11 = dependency('x11')
1266     dep_xext = dependency('xext')
1267     dep_xcb = dependency('xcb')
1268   elif with_glx == 'dri'
1269     dep_x11 = dependency('x11')
1270     dep_xext = dependency('xext')
1271     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1272     dep_xfixes = dependency('xfixes')
1273     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1274     dep_xxf86vm = dependency('xxf86vm', required : false)
1275   endif
1276   if (with_any_vk or with_glx == 'dri' or
1277        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1278         with_gallium_omx != 'disabled'))
1279     dep_xcb = dependency('xcb')
1280     dep_x11_xcb = dependency('x11-xcb')
1281   endif
1282   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1283     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1284
1285     if with_dri3
1286       pre_args += '-DHAVE_DRI3'
1287       dep_xcb_dri3 = dependency('xcb-dri3')
1288       dep_xcb_present = dependency('xcb-present')
1289       # until xcb-dri3 has been around long enough to make a hard-dependency:
1290       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1291           dep_xcb_present.version().version_compare('>= 1.13'))
1292         pre_args += '-DHAVE_DRI3_MODIFIERS'
1293       endif
1294       dep_xcb_sync = dependency('xcb-sync')
1295       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1296     endif
1297   endif
1298   if with_glx == 'dri'
1299     if with_dri_platform == 'drm'
1300       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1301     endif
1302     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1303   endif
1304   if (with_egl or (
1305       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1306       with_gallium_omx != 'disabled'))
1307     dep_xcb_xfixes = dependency('xcb-xfixes')
1308   endif
1309 endif
1310
1311 if get_option('gallium-extra-hud')
1312   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1313 endif
1314
1315 _sensors = get_option('lmsensors')
1316 if _sensors != 'false'
1317   dep_lmsensors = cc.find_library('libsensors', required : _sensors == 'true')
1318   if dep_lmsensors.found()
1319     pre_args += '-DHAVE_LIBSENSORS=1'
1320   endif
1321 else
1322   dep_lmsensors = null_dep
1323 endif
1324
1325 # TODO: various libdirs
1326
1327 # TODO: gallium driver dirs
1328
1329 foreach a : pre_args
1330   add_project_arguments(a, language : ['c', 'cpp'])
1331 endforeach
1332 foreach a : c_args
1333   add_project_arguments(a, language : ['c'])
1334 endforeach
1335 foreach a : cpp_args
1336   add_project_arguments(a, language : ['cpp'])
1337 endforeach
1338
1339 inc_include = include_directories('include')
1340
1341 gl_priv_reqs = [
1342   'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1343   'xcb-glx >= 1.8.1']
1344 if dep_libdrm.found()
1345   gl_priv_reqs += 'libdrm >= 2.4.75'
1346 endif
1347 if dep_xxf86vm.found()
1348   gl_priv_reqs += 'xxf86vm'
1349 endif
1350 if with_dri_platform == 'drm'
1351   gl_priv_reqs += 'xcb-dri2 >= 1.8'
1352 endif
1353
1354 gl_priv_libs = []
1355 if dep_thread.found()
1356   gl_priv_libs += ['-lpthread', '-pthread']
1357 endif
1358 if dep_m.found()
1359   gl_priv_libs += '-lm'
1360 endif
1361 if dep_dl.found()
1362   gl_priv_libs += '-ldl'
1363 endif
1364
1365 pkg = import('pkgconfig')
1366
1367 env_test = environment()
1368 env_test.set('NM', find_program('nm').path())
1369
1370 subdir('include')
1371 subdir('bin')
1372 subdir('src')