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 if get_option('power8') != 'false'
 609   if host_machine.cpu_family() == 'ppc64le'
 610     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
 611       error('Altivec is not supported with gcc version < 4.8.')
 612     endif
 613     if cc.compiles('''
 614         #include <altivec.h>
 615         int main() {
 616           vector unsigned char r;
 617           vector unsigned int v = vec_splat_u32 (1);
 618           r = __builtin_vec_vgbbd ((vector unsigned char) v);
 619           return 0;
 620         }''',
 621         args : '-mpower8-vector',
 622         name : 'POWER8 intrinsics')
 623       pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
 624     elif get_option('power8') == 'true'
 625       error('POWER8 intrinsic support required but not found.')
 626     endif
 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   dep_clc = dependency('libclc')
 637   with_gallium_opencl = true
 638   with_opencl_icd = _opencl == 'icd'
 639 else
 640   dep_clc = null_dep
 641   with_gallium_opencl = false
 642   with_gallium_icd = false
 643 endif
 644
 645 gl_pkgconfig_c_flags = []
 646 if with_platform_x11
 647   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
 648     pre_args += '-DHAVE_X11_PLATFORM'
 649   endif
 650   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 651     pre_args += '-DUSE_XSHM'
 652   else
 653     pre_args += '-DGLX_INDIRECT_RENDERING'
 654     if with_glx_direct
 655       pre_args += '-DGLX_DIRECT_RENDERING'
 656     endif
 657     if with_dri_platform == 'drm'
 658       pre_args += '-DGLX_USE_DRM'
 659     elif with_dri_platform == 'apple'
 660       pre_args += '-DGLX_USE_APPLEGL'
 661     elif with_dri_platform == 'windows'
 662       pre_args += '-DGLX_USE_WINDOWSGL'
 663     endif
 664   endif
 665 else
 666   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 667   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 668 endif
 669 if with_platform_drm
 670   if with_egl and not with_gbm
 671     error('EGL drm platform requires gbm')
 672   endif
 673   pre_args += '-DHAVE_DRM_PLATFORM'
 674 endif
 675 if with_platform_surfaceless
 676   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 677 endif
 678 if with_platform_android
 679   dep_android = [
 680     dependency('cutils'),
 681     dependency('hardware'),
 682     dependency('sync'),
 683   ]
 684   pre_args += '-DHAVE_ANDROID_PLATFORM'
 685 endif
 686 if with_platform_haiku
 687   pre_args += '-DHAVE_HAIKU_PLATFORM'
 688 endif
 689
 690 prog_python2 = find_program('python2')
 691 has_mako = run_command(prog_python2, '-c', 'import mako')
 692 if has_mako.returncode() != 0
 693   error('Python (2.x) mako module required to build mesa.')
 694 endif
 695
 696 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 697   error('When using GCC, version 4.4.6 or later is required.')
 698 endif
 699
 700 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 701 if get_option('buildtype') == 'debug'
 702   pre_args += '-DDEBUG'
 703 endif
 704
 705 if get_option('shader-cache')
 706   pre_args += '-DENABLE_SHADER_CACHE'
 707 elif with_amd_vk
 708   error('Radv requires shader cache support')
 709 endif
 710
 711 # Check for GCC style builtins
 712 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 713              'ffsll', 'popcount', 'popcountll', 'unreachable']
 714   if cc.has_function(b)
 715     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 716   endif
 717 endforeach
 718
 719 # check for GCC __attribute__
 720 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 721              'warn_unused_result', 'weak',]
 722   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 723                  name : '__attribute__((@0@))'.format(a))
 724     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 725   endif
 726 endforeach
 727 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 728                name : '__attribute__((format(...)))')
 729   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 730 endif
 731 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 732                name : '__attribute__((packed))')
 733   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 734 endif
 735 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 736                name : '__attribute__((returns_nonnull))')
 737   pre_args += '-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL'
 738 endif
 739 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 740                   int foo_hid(void) __attribute__((visibility("hidden")));
 741                   int foo_int(void) __attribute__((visibility("internal")));
 742                   int foo_pro(void) __attribute__((visibility("protected")));''',
 743                name : '__attribute__((visibility(...)))')
 744   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
 745 endif
 746 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 747                name : '__attribute__((alias(...)))')
 748   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 749 endif
 750 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 751                name : '__attribute__((__noreturn__))')
 752   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 753 endif
 754
 755 # TODO: this is very incomplete
 756 if ['linux', 'cygwin'].contains(host_machine.system())
 757   pre_args += '-D_GNU_SOURCE'
 758 endif
 759
 760 # Check for generic C arguments
 761 c_args = []
 762 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 763              '-Werror=missing-prototypes', '-fno-math-errno',
 764              '-fno-trapping-math', '-Qunused-arguments']
 765   if cc.has_argument(a)
 766     c_args += a
 767   endif
 768 endforeach
 769 c_vis_args = []
 770 if cc.has_argument('-fvisibility=hidden')
 771   c_vis_args += '-fvisibility=hidden'
 772 endif
 773
 774 # Check for generic C++ arguments
 775 cpp_args = []
 776 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 777              '-Qunused-arguments']
 778   if cpp.has_argument(a)
 779     cpp_args += a
 780   endif
 781 endforeach
 782
 783 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
 784 # option is not supported. Hence, check for -Wfoo instead.
 785 if cpp.has_argument('-Wnon-virtual-dtor')
 786   cpp_args += '-Wno-non-virtual-dtor'
 787 endif
 788
 789 no_override_init_args = []
 790 foreach a : ['override-init', 'initializer-overrides']
 791   if cc.has_argument('-W' + a)
 792     no_override_init_args += '-Wno-' + a
 793   endif
 794 endforeach
 795
 796 cpp_vis_args = []
 797 if cpp.has_argument('-fvisibility=hidden')
 798   cpp_vis_args += '-fvisibility=hidden'
 799 endif
 800
 801 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 802 # in parts of the mesa code base that need to compile with old versions of
 803 # MSVC, mainly common code
 804 c_msvc_compat_args = []
 805 cpp_msvc_compat_args = []
 806 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 807   if cc.has_argument(a)
 808     c_msvc_compat_args += a
 809   endif
 810   if cpp.has_argument(a)
 811     cpp_msvc_compat_args += a
 812   endif
 813 endforeach
 814
 815 if host_machine.cpu_family().startswith('x86')
 816   pre_args += '-DUSE_SSE41'
 817   with_sse41 = true
 818   sse41_args = ['-msse4.1']
 819
 820   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 821   # that's not guaranteed
 822   if host_machine.cpu_family() == 'x86'
 823     sse41_args += '-mstackrealign'
 824   endif
 825 else
 826   with_sse41 = false
 827   sse41_args = []
 828 endif
 829
 830 # Check for GCC style atomics
 831 dep_atomic = null_dep
 832
 833 if cc.compiles('''#include <stdint.h>
 834                   int main() {
 835                     struct {
 836                       uint64_t *v;
 837                     } x;
 838                     return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 839                            (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 840
 841                   }''',
 842                name : 'GCC atomic builtins')
 843   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 844
 845   # Not all atomic calls can be turned into lock-free instructions, in which
 846   # GCC will make calls into the libatomic library. Check whether we need to
 847   # link with -latomic.
 848   #
 849   # This can happen for 64-bit atomic operations on 32-bit architectures such
 850   # as ARM.
 851   if not cc.links('''#include <stdint.h>
 852                      int main() {
 853                        struct {
 854                          uint64_t *v;
 855                        } x;
 856                        return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
 857                               (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
 858                      }''',
 859                   name : 'GCC atomic builtins required -latomic')
 860     dep_atomic = cc.find_library('atomic')
 861   endif
 862 endif
 863 if not cc.links('''#include <stdint.h>
 864                    uint64_t v;
 865                    int main() {
 866                      return __sync_add_and_fetch(&v, (uint64_t)1);
 867                    }''',
 868                 name : 'GCC 64bit atomics')
 869   pre_args += '-DMISSING_64_BIT_ATOMICS'
 870 endif
 871
 872 # TODO: shared/static? Is this even worth doing?
 873
 874 # When cross compiling we generally need to turn off the use of assembly,
 875 # because mesa's assembly relies on building an executable for the host system,
 876 # and running it to get information about struct sizes. There is at least one
 877 # case of cross compiling where we can use asm, and that's x86_64 -> x86 when
 878 # host OS == build OS, since in that case the build machine can run the host's
 879 # binaries.
 880 if meson.is_cross_build()
 881   if build_machine.system() != host_machine.system()
 882     # TODO: It may be possible to do this with an exe_wrapper (like wine).
 883     message('Cross compiling from one OS to another, disabling assembly.')
 884     with_asm = false
 885   elif not (build_machine.cpu_family().startswith('x86') and host_machine.cpu_family() == 'x86')
 886     # FIXME: Gentoo always sets -m32 for x86_64 -> x86 builds, resulting in an
 887     # x86 -> x86 cross compile. We use startswith rather than == to handle this
 888     # case.
 889     # TODO: There may be other cases where the 64 bit version of the
 890     # architecture can run 32 bit binaries (aarch64 and armv7 for example)
 891     message('''
 892       Cross compiling to different architectures, and the host cannot run
 893       the build machine's binaries. Disabling assembly.
 894     ''')
 895     with_asm = false
 896   endif
 897 endif
 898
 899 with_asm_arch = ''
 900 if with_asm
 901   if host_machine.cpu_family() == 'x86'
 902     if system_has_kms_drm
 903       with_asm_arch = 'x86'
 904       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 905                    '-DUSE_SSE_ASM']
 906
 907       if with_glx_read_only_text
 908          pre_args += ['-DGLX_X86_READONLY_TEXT']
 909       endif
 910     endif
 911   elif host_machine.cpu_family() == 'x86_64'
 912     if system_has_kms_drm
 913       with_asm_arch = 'x86_64'
 914       pre_args += ['-DUSE_X86_64_ASM']
 915     endif
 916   elif host_machine.cpu_family() == 'arm'
 917     if system_has_kms_drm
 918       with_asm_arch = 'arm'
 919       pre_args += ['-DUSE_ARM_ASM']
 920     endif
 921   elif host_machine.cpu_family() == 'aarch64'
 922     if system_has_kms_drm
 923       with_asm_arch = 'aarch64'
 924       pre_args += ['-DUSE_AARCH64_ASM']
 925     endif
 926   elif host_machine.cpu_family() == 'sparc64'
 927     if system_has_kms_drm
 928       with_asm_arch = 'sparc'
 929       pre_args += ['-DUSE_SPARC_ASM']
 930     endif
 931   elif host_machine.cpu_family() == 'ppc64le'
 932     if system_has_kms_drm
 933       with_asm_arch = 'ppc64le'
 934       pre_args += ['-DUSE_PPC64LE_ASM']
 935     endif
 936   endif
 937 endif
 938
 939 # Check for standard headers and functions
 940 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 941   pre_args += '-DMAJOR_IN_SYSMACROS'
 942 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 943   pre_args += '-DMAJOR_IN_MKDEV'
 944 endif
 945
 946 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h']
 947   if cc.compiles('#include <@0@>'.format(h), name : '@0@'.format(h))
 948     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 949   endif
 950 endforeach
 951
 952 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get', 'memfd_create']
 953   if cc.has_function(f)
 954     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 955   endif
 956 endforeach
 957
 958 # strtod locale support
 959 if cc.links('''
 960     #define _GNU_SOURCE
 961     #include <stdlib.h>
 962     #include <locale.h>
 963     #ifdef HAVE_XLOCALE_H
 964     #include <xlocale.h>
 965     #endif
 966     int main() {
 967       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 968       const char *s = "1.0";
 969       char *end;
 970       double d = strtod_l(s, end, loc);
 971       float f = strtof_l(s, end, loc);
 972       freelocale(loc);
 973       return 0;
 974     }''',
 975     extra_args : pre_args,
 976     name : 'strtod has locale support')
 977   pre_args += '-DHAVE_STRTOD_L'
 978 endif
 979
 980 # Check for some linker flags
 981 ld_args_bsymbolic = []
 982 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
 983   ld_args_bsymbolic += '-Wl,-Bsymbolic'
 984 endif
 985 ld_args_gc_sections = []
 986 if cc.links('static char unused() { return 5; } int main() { return 0; }',
 987             args : '-Wl,--gc-sections', name : 'gc-sections')
 988   ld_args_gc_sections += '-Wl,--gc-sections'
 989 endif
 990 with_ld_version_script = false
 991 if cc.links('int main() { return 0; }',
 992             args : '-Wl,--version-script=@0@'.format(
 993               join_paths(meson.source_root(), 'build-support/conftest.map')),
 994             name : 'version-script')
 995   with_ld_version_script = true
 996 endif
 997 with_ld_dynamic_list = false
 998 if cc.links('int main() { return 0; }',
 999             args : '-Wl,--dynamic-list=@0@'.format(
1000               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1001             name : 'dynamic-list')
1002   with_ld_dynamic_list = true
1003 endif
1004 ld_args_build_id = []
1005 if build_machine.system() != 'darwin'
1006    ld_args_build_id += '-Wl,--build-id=sha1'
1007 endif
1008
1009 # check for dl support
1010 if cc.has_function('dlopen')
1011   dep_dl = null_dep
1012 else
1013   dep_dl = cc.find_library('dl')
1014 endif
1015 if cc.has_function('dladdr', dependencies : dep_dl)
1016   # This is really only required for megadrivers
1017   pre_args += '-DHAVE_DLADDR'
1018 endif
1019
1020 if cc.has_function('dl_iterate_phdr')
1021   pre_args += '-DHAVE_DL_ITERATE_PHDR'
1022 elif with_intel_vk
1023   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1024 elif with_dri_i965 and get_option('shader-cache')
1025   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
1026 endif
1027
1028 # Determine whether or not the rt library is needed for time functions
1029 if cc.has_function('clock_gettime')
1030   dep_clock = null_dep
1031 else
1032   dep_clock = cc.find_library('rt')
1033 endif
1034
1035 # TODO: some of these may be conditional
1036 dep_zlib = dependency('zlib', version : '>= 1.2.3')
1037 pre_args += '-DHAVE_ZLIB'
1038 dep_thread = dependency('threads')
1039 if dep_thread.found() and host_machine.system() != 'windows'
1040   pre_args += '-DHAVE_PTHREAD'
1041 endif
1042 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600 or with_gallium_opencl
1043   dep_elf = dependency('libelf', required : false)
1044   if not dep_elf.found()
1045     dep_elf = cc.find_library('elf')
1046   endif
1047 else
1048   dep_elf = null_dep
1049 endif
1050 dep_expat = dependency('expat')
1051 # this only exists on linux so either this is linux and it will be found, or
1052 # its not linux and and wont
1053 dep_m = cc.find_library('m', required : false)
1054
1055 # Check for libdrm. various drivers have different libdrm version requirements,
1056 # but we always want to use the same version for all libdrm modules. That means
1057 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1058 # bar are both on use 2.4.3 for both of them
1059 dep_libdrm_amdgpu = null_dep
1060 dep_libdrm_radeon = null_dep
1061 dep_libdrm_nouveau = null_dep
1062 dep_libdrm_etnaviv = null_dep
1063 dep_libdrm_freedreno = null_dep
1064 dep_libdrm_intel = null_dep
1065
1066 _drm_amdgpu_ver = '2.4.91'
1067 _drm_radeon_ver = '2.4.71'
1068 _drm_nouveau_ver = '2.4.66'
1069 _drm_etnaviv_ver = '2.4.89'
1070 _drm_freedreno_ver = '2.4.92'
1071 _drm_intel_ver = '2.4.75'
1072 _drm_ver = '2.4.75'
1073
1074 _libdrm_checks = [
1075   ['intel', with_dri_i915 or with_gallium_i915],
1076   ['amdgpu', with_amd_vk or with_gallium_radeonsi],
1077   ['radeon', (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
1078               with_gallium_r300 or with_gallium_r600)],
1079   ['nouveau', (with_gallium_nouveau or with_dri_nouveau)],
1080   ['etnaviv', with_gallium_etnaviv],
1081   ['freedreno', with_gallium_freedreno],
1082 ]
1083
1084 # VC4 only needs core libdrm support of this version, not a libdrm_vc4
1085 # library.
1086 if with_gallium_vc4
1087   _drm_ver = '2.4.89'
1088 endif
1089
1090 # Loop over the enables versions and get the highest libdrm requirement for all
1091 # active drivers.
1092 foreach d : _libdrm_checks
1093   ver = get_variable('_drm_@0@_ver'.format(d[0]))
1094   if d[1] and ver.version_compare('>' + _drm_ver)
1095     _drm_ver = ver
1096   endif
1097 endforeach
1098
1099 # Then get each libdrm module
1100 foreach d : _libdrm_checks
1101   if d[1]
1102     set_variable(
1103       'dep_libdrm_' + d[0],
1104       dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1105     )
1106   endif
1107 endforeach
1108
1109 with_gallium_drisw_kms = false
1110 dep_libdrm = dependency(
1111   'libdrm', version : '>=' + _drm_ver,
1112   required : with_dri2 or with_dri3
1113 )
1114 if dep_libdrm.found()
1115   pre_args += '-DHAVE_LIBDRM'
1116   if with_dri_platform == 'drm' and with_dri
1117     with_gallium_drisw_kms = true
1118   endif
1119 endif
1120
1121 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
1122 llvm_optional_modules = []
1123 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1124   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
1125   if with_gallium_r600
1126     llvm_modules += 'asmparser'
1127   endif
1128 endif
1129 if with_gallium_opencl
1130   llvm_modules += [
1131     'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1132     'lto', 'option', 'objcarcopts', 'profiledata',
1133   ]
1134   llvm_optional_modules += ['coroutines', 'opencl']
1135 endif
1136
1137 if with_amd_vk or with_gallium_radeonsi
1138   _llvm_version = '>= 5.0.0'
1139 elif with_gallium_swr
1140   _llvm_version = '>= 4.0.0'
1141 elif with_gallium_opencl or with_gallium_r600
1142   _llvm_version = '>= 3.9.0'
1143 else
1144   _llvm_version = '>= 3.3.0'
1145 endif
1146
1147 _llvm = get_option('llvm')
1148 if _llvm == 'auto'
1149   dep_llvm = dependency(
1150     'llvm',
1151     version : _llvm_version,
1152     modules : llvm_modules,
1153     optional_modules : llvm_optional_modules,
1154     required : with_amd_vk or with_gallium_radeonsi or with_gallium_swr or with_gallium_opencl,
1155   )
1156   with_llvm = dep_llvm.found()
1157 elif _llvm == 'true'
1158   dep_llvm = dependency(
1159     'llvm',
1160     version : _llvm_version,
1161     modules : llvm_modules,
1162     optional_modules : llvm_optional_modules,
1163   )
1164   with_llvm = true
1165 else
1166   dep_llvm = null_dep
1167   with_llvm = false
1168 endif
1169 if with_llvm
1170   _llvm_version = dep_llvm.version().split('.')
1171   # Development versions of LLVM have an 'svn' or 'git' suffix, we don't want
1172   # that for our version checks.
1173   # svn suffixes are stripped by meson as of 0.43, and git suffixes are
1174   # strippped as of 0.44, but we support older meson versions.
1175
1176   # 3 digits versions in LLVM only started from 3.4.1 on
1177   if dep_llvm.version().version_compare('>= 3.4.1')
1178     _llvm_patch = _llvm_version[2]
1179   else
1180     _llvm_patch = '0'
1181   endif
1182
1183   if _llvm_patch.endswith('svn')
1184     _llvm_patch = _llvm_patch.split('s')[0]
1185   elif _llvm_patch.contains('git')
1186     _llvm_patch = _llvm_patch.split('g')[0]
1187   endif
1188   pre_args += [
1189     '-DHAVE_LLVM=0x0@0@0@1@'.format(_llvm_version[0], _llvm_version[1]),
1190     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
1191   ]
1192
1193   # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1194   # programs, so we need to build all C++ code in mesa without rtti as well to
1195   # ensure that linking works.
1196   if dep_llvm.get_configtool_variable('has-rtti') == 'NO'
1197     cpp_args += '-fno-rtti'
1198   endif
1199 elif with_amd_vk or with_gallium_radeonsi or with_gallium_swr
1200   error('The following drivers require LLVM: Radv, RadeonSI, SWR. One of these is enabled, but LLVM is disabled.')
1201 endif
1202
1203 dep_glvnd = null_dep
1204 if with_glvnd
1205   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1206   pre_args += '-DUSE_LIBGLVND=1'
1207 endif
1208
1209 if with_valgrind != 'false'
1210   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1211   if dep_valgrind.found()
1212     pre_args += '-DHAVE_VALGRIND'
1213   endif
1214 else
1215   dep_valgrind = null_dep
1216 endif
1217
1218 # pthread stubs. Lets not and say we didn't
1219
1220 prog_bison = find_program('bison', required : with_any_opengl)
1221 prog_flex = find_program('flex', required : with_any_opengl)
1222
1223 dep_selinux = null_dep
1224 if get_option('selinux')
1225   dep_selinux = dependency('libselinux')
1226   pre_args += '-DMESA_SELINUX'
1227 endif
1228
1229 if with_libunwind != 'false'
1230   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1231   if dep_unwind.found()
1232     pre_args += '-DHAVE_LIBUNWIND'
1233   endif
1234 else
1235   dep_unwind = null_dep
1236 endif
1237
1238 if with_osmesa != 'none'
1239   if with_osmesa == 'classic' and not with_dri_swrast
1240     error('OSMesa classic requires dri (classic) swrast.')
1241   endif
1242   if with_osmesa == 'gallium' and not with_gallium_softpipe
1243     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1244   endif
1245   osmesa_lib_name = 'OSMesa'
1246   osmesa_bits = get_option('osmesa-bits')
1247   if osmesa_bits != '8'
1248     if with_dri or with_glx != 'disabled'
1249       error('OSMesa bits must be 8 if building glx or dir based drivers')
1250     endif
1251     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1252     pre_args += [
1253       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1254     ]
1255   endif
1256 endif
1257
1258 # TODO: symbol mangling
1259
1260 if with_platform_wayland
1261   prog_wl_scanner = find_program('wayland-scanner')
1262   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1263   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1264   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1265   if with_egl
1266     dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1267     dep_wayland_egl_headers = declare_dependency(
1268       compile_args : run_command(prog_pkgconfig, ['wayland-egl-backend', '--cflags']).stdout().split())
1269   endif
1270   wayland_dmabuf_xml = join_paths(
1271     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1272     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1273   )
1274   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1275 else
1276   prog_wl_scanner = []
1277   dep_wl_protocols = null_dep
1278   dep_wayland_client = null_dep
1279   dep_wayland_server = null_dep
1280   wayland_dmabuf_xml = ''
1281 endif
1282
1283 dep_x11 = null_dep
1284 dep_xext = null_dep
1285 dep_xdamage = null_dep
1286 dep_xfixes = null_dep
1287 dep_x11_xcb = null_dep
1288 dep_xcb = null_dep
1289 dep_xcb_glx = null_dep
1290 dep_xcb_dri2 = null_dep
1291 dep_xcb_dri3 = null_dep
1292 dep_dri2proto = null_dep
1293 dep_glproto = null_dep
1294 dep_xxf86vm = null_dep
1295 dep_xcb_dri3 = null_dep
1296 dep_xcb_present = null_dep
1297 dep_xcb_sync = null_dep
1298 dep_xcb_xfixes = null_dep
1299 dep_xshmfence = null_dep
1300 if with_platform_x11
1301   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1302     dep_x11 = dependency('x11')
1303     dep_xext = dependency('xext')
1304     dep_xcb = dependency('xcb')
1305   elif with_glx == 'dri'
1306     dep_x11 = dependency('x11')
1307     dep_xext = dependency('xext')
1308     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1309     dep_xfixes = dependency('xfixes')
1310     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1311     dep_xxf86vm = dependency('xxf86vm', required : false)
1312   endif
1313   if (with_any_vk or with_glx == 'dri' or
1314        (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
1315         with_gallium_omx != 'disabled'))
1316     dep_xcb = dependency('xcb')
1317     dep_x11_xcb = dependency('x11-xcb')
1318   endif
1319   if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
1320     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1321
1322     if with_dri3
1323       pre_args += '-DHAVE_DRI3'
1324       dep_xcb_dri3 = dependency('xcb-dri3')
1325       dep_xcb_present = dependency('xcb-present')
1326       # until xcb-dri3 has been around long enough to make a hard-dependency:
1327       if (dep_xcb_dri3.version().version_compare('>= 1.13') and
1328           dep_xcb_present.version().version_compare('>= 1.13'))
1329         pre_args += '-DHAVE_DRI3_MODIFIERS'
1330       endif
1331       dep_xcb_sync = dependency('xcb-sync')
1332       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1333     endif
1334   endif
1335   if with_glx == 'dri'
1336     if with_dri_platform == 'drm'
1337       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1338     endif
1339     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1340   endif
1341   if (with_egl or (
1342       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
1343       with_gallium_omx != 'disabled'))
1344     dep_xcb_xfixes = dependency('xcb-xfixes')
1345   endif
1346 endif
1347
1348 if get_option('gallium-extra-hud')
1349   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1350 endif
1351
1352 _sensors = get_option('lmsensors')
1353 if _sensors != 'false'
1354   dep_lmsensors = cc.find_library('libsensors', required : _sensors == 'true')
1355   if dep_lmsensors.found()
1356     pre_args += '-DHAVE_LIBSENSORS=1'
1357   endif
1358 else
1359   dep_lmsensors = null_dep
1360 endif
1361
1362 foreach a : pre_args
1363   add_project_arguments(a, language : ['c', 'cpp'])
1364 endforeach
1365 foreach a : c_args
1366   add_project_arguments(a, language : ['c'])
1367 endforeach
1368 foreach a : cpp_args
1369   add_project_arguments(a, language : ['cpp'])
1370 endforeach
1371
1372 inc_include = include_directories('include')
1373
1374 gl_priv_reqs = []
1375
1376 if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1377   gl_priv_reqs += ['x11', 'xext', 'xcb']
1378 elif with_glx == 'dri'
1379   gl_priv_reqs += [
1380     'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1381     'xcb-glx >= 1.8.1']
1382   if with_dri_platform == 'drm'
1383     gl_priv_reqs += 'xcb-dri2 >= 1.8'
1384   endif
1385 endif
1386 if dep_libdrm.found()
1387   gl_priv_reqs += 'libdrm >= 2.4.75'
1388 endif
1389 if dep_xxf86vm.found()
1390   gl_priv_reqs += 'xxf86vm'
1391 endif
1392
1393 gl_priv_libs = []
1394 if dep_thread.found()
1395   gl_priv_libs += ['-lpthread', '-pthread']
1396 endif
1397 if dep_m.found()
1398   gl_priv_libs += '-lm'
1399 endif
1400 if dep_dl.found()
1401   gl_priv_libs += '-ldl'
1402 endif
1403
1404 pkg = import('pkgconfig')
1405
1406 env_test = environment()
1407 env_test.set('NM', find_program('nm').path())
1408
1409 subdir('include')
1410 subdir('bin')
1411 subdir('src')