meson.build

   1 # Copyright © 2017 Intel Corporation
   2
   3 # Permission is hereby granted, free of charge, to any person obtaining a copy
   4 # of this software and associated documentation files (the "Software"), to deal
   5 # in the Software without restriction, including without limitation the rights
   6 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 # copies of the Software, and to permit persons to whom the Software is
   8 # furnished to do so, subject to the following conditions:
   9
  10 # The above copyright notice and this permission notice shall be included in
  11 # all copies or substantial portions of the Software.
  12
  13 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19 # SOFTWARE.
  20
  21 project(
  22   'mesa',
  23   ['c', 'cpp'],
  24   version : run_command(
  25     [find_program('python', 'python2', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.42',
  29   default_options : ['buildtype=debugoptimized', 'c_std=c99', 'cpp_std=c++11']
  30 )
  31
  32 # Arguments for the preprocessor, put these in a separate array from the C and
  33 # C++ (cpp in meson terminology) arguments since they need to be added to the
  34 # default arguments for both C and C++.
  35 pre_args = [
  36   '-D__STDC_CONSTANT_MACROS',
  37   '-D__STDC_FORMAT_MACROS',
  38   '-D__STDC_LIMIT_MACROS',
  39   '-DVERSION="@0@"'.format(meson.project_version()),
  40   '-DPACKAGE_VERSION=VERSION',
  41   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  42 ]
  43
  44 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  45 with_tests = get_option('build-tests')
  46 with_valgrind = get_option('valgrind')
  47 with_libunwind = get_option('libunwind')
  48 with_asm = get_option('asm')
  49 with_osmesa = get_option('osmesa')
  50 if get_option('texture-float')
  51   pre_args += '-DTEXTURE_FLOAT_ENABLED'
  52   message('WARNING: Floating-point texture enabled. Please consult docs/patents.txt and your lawyer before building mesa.')
  53 endif
  54
  55 dri_drivers_path = get_option('dri-drivers-path')
  56 if dri_drivers_path == ''
  57   dri_drivers_path = join_paths(get_option('libdir'), 'dri')
  58 endif
  59
  60 with_gles1 = get_option('gles1')
  61 with_gles2 = get_option('gles2')
  62 with_opengl = get_option('opengl')
  63 with_any_opengl = with_opengl or with_gles1 or with_gles2
  64 # Only build shared_glapi if at least one OpenGL API is enabled
  65 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  66
  67
  68 # shared-glapi is required if at least two OpenGL APIs are being built
  69 if not with_shared_glapi
  70   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  71       or (with_gles2 and with_opengl))
  72     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  73   endif
  74 endif
  75
  76 # We require OpenGL for OpenGL ES
  77 if (with_gles1 or with_gles2) and not with_opengl
  78   error('building OpenGL ES without OpenGL is not supported.')
  79 endif
  80
  81 with_dri = false
  82 with_dri_i915 = false
  83 with_dri_i965 = false
  84 with_dri_r100 = false
  85 with_dri_r200 = false
  86 with_dri_nouveau = false
  87 with_dri_swrast = false
  88 _drivers = get_option('dri-drivers')
  89 if _drivers == 'auto'
  90   # TODO: PPC, Sparc
  91   if not ['darwin', 'windows'].contains(host_machine.system())
  92     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
  93       _drivers = 'i915,i965,r100,r200,nouveau'
  94     else
  95       error('Unknown architecture. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
  96     endif
  97   else
  98     error('Unknown OS. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
  99   endif
 100 endif
 101 if _drivers != ''
 102   _split = _drivers.split(',')
 103   with_dri_i915 = _split.contains('i915')
 104   with_dri_i965 = _split.contains('i965')
 105   with_dri_r100 = _split.contains('r100')
 106   with_dri_r200 = _split.contains('r200')
 107   with_dri_nouveau = _split.contains('nouveau')
 108   with_dri_swrast = _split.contains('swrast')
 109   with_dri = true
 110 endif
 111
 112 with_gallium = false
 113 with_gallium_pl111 = false
 114 with_gallium_radeonsi = false
 115 with_gallium_nouveau = false
 116 with_gallium_freedreno = false
 117 with_gallium_softpipe = false
 118 with_gallium_vc4 = false
 119 with_gallium_vc5 = false
 120 with_gallium_etnaviv = false
 121 with_gallium_imx = false
 122 _drivers = get_option('gallium-drivers')
 123 if _drivers == 'auto'
 124   if not ['darwin', 'windows'].contains(host_machine.system())
 125     # TODO: PPC, Sparc
 126     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 127       _drivers = 'radeonsi,nouveau,swrast'
 128     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 129       _drivers = 'pl111,vc4,vc5,freedreno,etnaviv,imx,swrast'
 130     else
 131       error('Unknown architecture. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 132     endif
 133   else
 134     error('Unknown OS. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 135   endif
 136 endif
 137 if _drivers != ''
 138   _split = _drivers.split(',')
 139   with_gallium_pl111 = _split.contains('pl111')
 140   with_gallium_radeonsi = _split.contains('radeonsi')
 141   with_gallium_nouveau = _split.contains('nouveau')
 142   with_gallium_freedreno = _split.contains('freedreno')
 143   with_gallium_softpipe = _split.contains('swrast')
 144   with_gallium_vc4 = _split.contains('vc4')
 145   with_gallium_vc5 = _split.contains('vc5')
 146   with_gallium_etnaviv = _split.contains('etnaviv')
 147   with_gallium_imx = _split.contains('imx')
 148   with_gallium = true
 149 endif
 150
 151 with_intel_vk = false
 152 with_amd_vk = false
 153 with_any_vk = false
 154 _vulkan_drivers = get_option('vulkan-drivers')
 155 if _vulkan_drivers == 'auto'
 156   if not ['darwin', 'windows'].contains(host_machine.system())
 157     if host_machine.cpu_family().startswith('x86')
 158       _vulkan_drivers = 'amd,intel'
 159     else
 160       error('Unknown architecture. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 161     endif
 162   else
 163     # No vulkan driver supports windows or macOS currently
 164     _vulkan_drivers = ''
 165   endif
 166 endif
 167 if _vulkan_drivers != ''
 168   _split = _vulkan_drivers.split(',')
 169   with_intel_vk = _split.contains('intel')
 170   with_amd_vk = _split.contains('amd')
 171   with_any_vk = with_amd_vk or with_intel_vk
 172 endif
 173
 174 if with_dri_swrast and with_gallium_softpipe
 175   error('Only one swrast provider can be built')
 176 endif
 177 if with_gallium_imx and not with_gallium_etnaviv
 178   error('IMX driver requires etnaviv driver')
 179 endif
 180
 181 dep_libdrm_intel = []
 182 if with_dri_i915
 183   dep_libdrm_intel = dependency('libdrm_intel', version : '>= 2.4.75')
 184 endif
 185
 186 if host_machine.system() == 'darwin'
 187   with_dri_platform = 'apple'
 188 elif ['windows', 'cygwin'].contains(host_machine.system())
 189   with_dri_platform = 'windows'
 190 elif host_machine.system() == 'linux'
 191   # FIXME: This should include BSD and possibly other systems
 192   with_dri_platform = 'drm'
 193 else
 194   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 195   # assert here that one of those cases has been met.
 196   # FIXME: GNU (hurd) ends up here as well, but meson doesn't officially
 197   # support Hurd at time of writing (2017/11)
 198   with_dri_platform = 'none'
 199 endif
 200
 201 with_platform_android = false
 202 with_platform_wayland = false
 203 with_platform_x11 = false
 204 with_platform_drm = false
 205 with_platform_surfaceless = false
 206 egl_native_platform = ''
 207 _platforms = get_option('platforms')
 208 if _platforms == 'auto'
 209   if ['linux'].contains(host_machine.system())
 210     _platforms = 'x11,wayland,drm,surfaceless'
 211   else
 212     error('Unknown OS, no platforms enabled. Patches gladly accepted to fix this.')
 213   endif
 214 endif
 215 if _platforms != ''
 216   _split = _platforms.split(',')
 217   with_platform_android = _split.contains('android')
 218   with_platform_x11 = _split.contains('x11')
 219   with_platform_wayland = _split.contains('wayland')
 220   with_platform_drm = _split.contains('drm')
 221   with_platform_surfaceless = _split.contains('surfaceless')
 222   egl_native_platform = _split[0]
 223 endif
 224
 225 with_glx = get_option('glx')
 226 if with_glx == 'auto'
 227   if with_dri
 228     with_glx = 'dri'
 229   elif with_gallium
 230     # Even when building just gallium drivers the user probably wants dri
 231     with_glx = 'dri'
 232     with_dri = true
 233   elif with_platform_x11 and with_any_opengl and not with_any_vk
 234     # The automatic behavior should not be to turn on xlib based glx when
 235     # building only vulkan drivers
 236     with_glx = 'xlib'
 237   else
 238     with_glx = 'disabled'
 239   endif
 240 endif
 241
 242 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 243   with_gles1 = false
 244   with_gles2 = false
 245   with_opengl = false
 246   with_any_opengl = false
 247   with_shared_glapi = false
 248 endif
 249
 250 with_gbm = get_option('gbm')
 251 if with_gbm == 'auto' and with_dri  # TODO: or gallium
 252   with_gbm = host_machine.system() == 'linux'
 253 elif with_gbm == 'true'
 254   if not ['linux', 'bsd'].contains(host_machine.system())
 255     error('GBM only supports unix-like platforms')
 256   endif
 257   with_gbm = true
 258 else
 259   with_gbm = false
 260 endif
 261
 262 _egl = get_option('egl')
 263 if _egl == 'auto'
 264   with_egl = with_dri and with_shared_glapi and egl_native_platform != ''
 265 elif _egl == 'true'
 266   if not with_dri
 267     error('EGL requires dri')
 268   elif not with_shared_glapi
 269     error('EGL requires shared-glapi')
 270   elif egl_native_platform == ''
 271     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 272   endif
 273   with_egl = true
 274 else
 275   with_egl = false
 276 endif
 277
 278 # TODO: or virgl
 279 if with_egl and with_gallium_radeonsi and not (with_platform_drm or with_platform_surfaceless)
 280   error('RadeonSI requires drm or surfaceless platform when using EGL')
 281 endif
 282
 283 pre_args += '-DGLX_USE_TLS'
 284 if with_glx != 'disabled'
 285   if not (with_platform_x11 and with_any_opengl)
 286     if with_glx == 'auto'
 287       with_glx = 'disabled'
 288     else
 289       error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 290     endif
 291   elif with_glx == 'gallium-xlib'
 292     if not with_gallium
 293       error('Gallium-xlib based GLX requires at least one gallium driver')
 294     elif not with_gallium_softpipe
 295       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 296     elif with_dri
 297       error('gallium-xlib conflicts with any dri driver')
 298     endif
 299   elif with_glx == 'xlib'
 300     if with_dri
 301       error('xlib conflicts with any dri driver')
 302     endif
 303   elif with_glx == 'dri' and not with_dri
 304     error('dri based GLX requires at least one DRI driver')
 305   endif
 306 endif
 307
 308 with_glvnd = get_option('glvnd')
 309 if with_glvnd
 310   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 311     error('Cannot build glvnd support for GLX that is not DRI based.')
 312   elif with_glx == 'disabled' and not with_egl
 313     error('glvnd requires DRI based GLX and/or EGL')
 314   endif
 315 endif
 316
 317 # TODO: toggle for this
 318 with_glx_direct = true
 319
 320 if with_vulkan_icd_dir == ''
 321   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 322 endif
 323
 324 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 325 with_dri3 = get_option('dri3')
 326 if with_dri3 == 'auto'
 327   if host_machine.system() == 'linux' and with_dri2
 328     with_dri3 = true
 329   else
 330     with_dri3 = false
 331  endif
 332 elif with_dri3 == 'true'
 333   with_dri3 = true
 334 else
 335   with_dri3 = false
 336 endif
 337
 338 if with_any_vk and (with_platform_x11 and not with_dri3)
 339   error('Vulkan drivers require dri3 for X11 support')
 340 endif
 341 if with_dri or with_gallium
 342   if with_glx == 'disabled' and not with_egl
 343     error('building dri or gallium drivers require at least one window system')
 344   endif
 345 endif
 346
 347 with_gallium_xvmc = false
 348 with_gallium_vdpau = false
 349 with_gallium_omx = false  # this is bellagio
 350 with_gallium_va = false
 351 with_gallium_media = false
 352 dep_va = []
 353 _drivers = get_option('gallium-media')
 354 if _drivers != ''
 355   _split = _drivers.split(',')
 356   with_gallium_xvmc = _split.contains('xvmc')
 357   with_gallium_vdpau = _split.contains('vdpau')
 358   with_gallium_omx = _split.contains('omx')
 359   with_gallium_va = _split.contains('va')
 360   with_gallium_media = (with_gallium_xvmc or with_gallium_vdpau or
 361                         with_gallium_omx or with_gallium_va)
 362 endif
 363
 364 gl_pkgconfig_c_flags = []
 365 if with_platform_x11
 366   if with_any_vk or (with_glx == 'dri' and with_dri_platform == 'drm')
 367     pre_args += '-DHAVE_X11_PLATFORM'
 368   endif
 369   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 370     pre_args += '-DUSE_XSHM'
 371   else
 372     pre_args += '-DGLX_INDIRECT_RENDERING'
 373     if with_glx_direct
 374       pre_args += '-DGLX_DIRECT_RENDERING'
 375     endif
 376     if with_dri_platform == 'drm'
 377       pre_args += '-DGLX_USE_DRM'
 378     endif
 379   endif
 380 else
 381   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 382   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 383 endif
 384 if with_platform_drm
 385   if with_egl and not with_gbm
 386     error('EGL drm platform requires gbm')
 387   endif
 388   pre_args += '-DHAVE_DRM_PLATFORM'
 389 endif
 390 if with_platform_surfaceless
 391   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 392 endif
 393 if with_platform_android
 394   dep_android = [
 395     dependency('cutils'),
 396     dependency('hardware'),
 397     dependency('sync'),
 398   ]
 399   pre_args += '-DHAVE_ANDROID_PLATFORM'
 400 endif
 401
 402 prog_python2 = find_program('python2')
 403 has_mako = run_command(prog_python2, '-c', 'import mako')
 404 if has_mako.returncode() != 0
 405   error('Python (2.x) mako module required to build mesa.')
 406 endif
 407
 408 cc = meson.get_compiler('c')
 409 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 410   error('When using GCC, version 4.4.6 or later is required.')
 411 endif
 412
 413 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 414 if get_option('buildtype') == 'debug'
 415   pre_args += '-DDEBUG'
 416 endif
 417
 418 if get_option('shader-cache')
 419   pre_args += '-DENABLE_SHADER_CACHE'
 420 elif with_amd_vk
 421   error('Radv requires shader cache support')
 422 endif
 423
 424 # Check for GCC style builtins
 425 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 426              'ffsll', 'popcount', 'popcountll', 'unreachable']
 427   if cc.has_function(b)
 428     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 429   endif
 430 endforeach
 431
 432 # check for GCC __attribute__
 433 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 434              'warn_unused_result', 'weak',]
 435   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 436                  name : '__attribute__((@0@))'.format(a))
 437     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 438   endif
 439 endforeach
 440 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 441                name : '__attribute__((format(...)))')
 442   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 443 endif
 444 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 445                name : '__attribute__((packed))')
 446   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 447 endif
 448 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 449                name : '__attribute__((returns_nonnull))')
 450   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NONNULL'
 451 endif
 452 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 453                   int foo_hid(void) __attribute__((visibility("hidden")));
 454                   int foo_int(void) __attribute__((visibility("internal")));
 455                   int foo_pro(void) __attribute__((visibility("protected")));''',
 456                name : '__attribute__((visibility(...)))')
 457   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISBILITY'
 458 endif
 459 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 460                name : '__attribute__((alias(...)))')
 461   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 462 endif
 463
 464 # TODO: this is very incomplete
 465 if host_machine.system() == 'linux'
 466   pre_args += '-D_GNU_SOURCE'
 467 endif
 468
 469 # Check for generic C arguments
 470 c_args = []
 471 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 472              '-Werror=missing-prototypes', '-fno-math-errno',
 473              '-fno-trapping-math', '-Qunused-arguments']
 474   if cc.has_argument(a)
 475     c_args += a
 476   endif
 477 endforeach
 478 c_vis_args = []
 479 if cc.has_argument('-fvisibility=hidden')
 480   c_vis_args += '-fvisibility=hidden'
 481 endif
 482
 483 # Check for generic C++ arguments
 484 cpp = meson.get_compiler('cpp')
 485 cpp_args = []
 486 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 487              '-Qunused-arguments', '-Wno-non-virtual-dtor']
 488   if cpp.has_argument(a)
 489     cpp_args += a
 490   endif
 491 endforeach
 492 cpp_vis_args = []
 493 if cpp.has_argument('-fvisibility=hidden')
 494   cpp_vis_args += '-fvisibility=hidden'
 495 endif
 496
 497 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 498 # in parts of the mesa code base that need to compile with old versions of
 499 # MSVC, mainly common code
 500 c_msvc_compat_args = []
 501 cpp_msvc_compat_args = []
 502 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 503   if cc.has_argument(a)
 504     c_msvc_compat_args += a
 505   endif
 506   if cpp.has_argument(a)
 507     cpp_msvc_compat_args += a
 508   endif
 509 endforeach
 510
 511 no_override_init_args = []
 512 foreach a : ['-Wno-override-init', '-Wno-initializer-overrides']
 513   if cc.has_argument(a)
 514     no_override_init_args += a
 515   endif
 516 endforeach
 517
 518 if host_machine.cpu_family().startswith('x86')
 519   pre_args += '-DHAVE_SSE41'
 520   with_sse41 = true
 521   sse41_args = ['-msse4.1']
 522
 523   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 524   # that's not guaranteed
 525   if host_machine.cpu_family() == 'x86'
 526     sse41_args += '-mstackrealign'
 527   endif
 528 else
 529   with_sse41 = false
 530   sse41_args = []
 531 endif
 532
 533 # Check for GCC style atomics
 534 if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
 535                name : 'GCC atomic builtins')
 536   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 537 endif
 538 if not cc.links('''#include <stdint.h>
 539                    uint64_t v;
 540                    int main() {
 541                      return __sync_add_and_fetch(&v, (uint64_t)1);
 542                    }''',
 543                 name : 'GCC 64bit atomics')
 544   pre_args += '-DMISSING_64_BIT_ATOMICS'
 545 endif
 546
 547 # TODO: endian
 548 # TODO: powr8
 549 # TODO: shared/static? Is this even worth doing?
 550
 551 # Building x86 assembly code requires running x86 binaries. It is possible for
 552 # x86_64 OSes to run x86 binaries, so don't disable asm in those cases
 553 # TODO: it should be possible to use an exe_wrapper to run the binary during
 554 # the build.
 555 if meson.is_cross_build()
 556   if not (build_machine.cpu_family() == 'x86_64' and host_machine.cpu_family() == 'x86'
 557           and build_machine.system() == host_machine.system())
 558     message('Cross compiling to x86 from non-x86, disabling asm')
 559     with_asm = false
 560   endif
 561 endif
 562
 563 with_asm_arch = ''
 564 if with_asm
 565   # TODO: SPARC and PPC
 566   if host_machine.cpu_family() == 'x86'
 567     if ['linux', 'bsd'].contains(host_machine.system()) # FIXME: hurd?
 568       with_asm_arch = 'x86'
 569       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 570                    '-DUSE_SSE_ASM']
 571     endif
 572   elif host_machine.cpu_family() == 'x86_64'
 573     if host_machine.system() == 'linux'
 574       with_asm_arch = 'x86_64'
 575       pre_args += ['-DUSE_X86_64_ASM']
 576     endif
 577   elif host_machine.cpu_family() == 'arm'
 578     if host_machine.system() == 'linux'
 579       with_asm_arch = 'arm'
 580       pre_args += ['-DUSE_ARM_ASM']
 581     endif
 582   elif host_machine.cpu_family() == 'aarch64'
 583     if host_machine.system() == 'linux'
 584       with_asm_arch = 'aarch64'
 585       pre_args += ['-DUSE_AARCH64_ASM']
 586     endif
 587   endif
 588 endif
 589
 590 # Check for standard headers and functions
 591 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 592   pre_args += '-DMAJOR_IN_SYSMACROS'
 593 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 594   pre_args += '-DMAJOR_IN_MKDEV'
 595 endif
 596
 597 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h']
 598   if cc.has_header(h)
 599     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 600   endif
 601 endforeach
 602
 603 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get']
 604   if cc.has_function(f)
 605     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 606   endif
 607 endforeach
 608
 609 # strtod locale support
 610 if cc.links('''
 611     #define _GNU_SOURCE
 612     #include <stdlib.h>
 613     #include <locale.h>
 614     #ifdef HAVE_XLOCALE_H
 615     #include <xlocale.h>
 616     #endif
 617     int main() {
 618       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 619       const char *s = "1.0";
 620       char *end;
 621       double d = strtod_l(s, end, loc);
 622       float f = strtof_l(s, end, loc);
 623       freelocale(loc);
 624       return 0;
 625     }''',
 626     extra_args : pre_args,
 627     name : 'strtod has locale support')
 628   pre_args += '-DHAVE_STRTOD_L'
 629 endif
 630
 631 # Check for some linker flags
 632 ld_args_bsymbolic = []
 633 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
 634   ld_args_bsymbolic += '-Wl,-Bsymbolic'
 635 endif
 636 ld_args_gc_sections = []
 637 if cc.links('static char unused() { return 5; } int main() { return 0; }',
 638             args : '-Wl,--gc-sections', name : 'gc-sections')
 639   ld_args_gc_sections += '-Wl,--gc-sections'
 640 endif
 641 with_ld_version_script = false
 642 if cc.links('int main() { return 0; }',
 643             args : '-Wl,--version-script=@0@'.format(
 644               join_paths(meson.source_root(), 'build-support/conftest.map')),
 645             name : 'version-script')
 646   with_ld_version_script = true
 647 endif
 648 with_ld_dynamic_list = false
 649 if cc.links('int main() { return 0; }',
 650             args : '-Wl,--dynamic-list=@0@'.format(
 651               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
 652             name : 'dynamic-list')
 653   with_ld_dynamic_list = true
 654 endif
 655
 656 # check for dl support
 657 if cc.has_function('dlopen')
 658   dep_dl = []
 659 else
 660   dep_dl = cc.find_library('dl')
 661 endif
 662 if cc.has_function('dladdr', dependencies : dep_dl)
 663   # This is really only required for megadrivers
 664   pre_args += '-DHAVE_DLADDR'
 665 endif
 666
 667 if cc.has_function('dl_iterate_phdr')
 668   pre_args += '-DHAVE_DL_ITERATE_PHDR'
 669 elif with_intel_vk
 670   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
 671 elif with_dri_i965 and get_option('shader-cache')
 672   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
 673 endif
 674
 675 # Determine whether or not the rt library is needed for time functions
 676 if cc.has_function('clock_gettime')
 677   dep_clock = []
 678 else
 679   dep_clock = cc.find_library('rt')
 680 endif
 681
 682 with_gallium_drisw_kms = false
 683 dep_libdrm = dependency('libdrm', version : '>= 2.4.75',
 684                         required : with_dri2 or with_dri3)
 685 if dep_libdrm.found()
 686   pre_args += '-DHAVE_LIBDRM'
 687   if with_dri_platform == 'drm' and with_dri
 688     with_gallium_drisw_kms = true
 689   endif
 690 endif
 691
 692 # TODO: some of these may be conditional
 693 dep_zlib = dependency('zlib', version : '>= 1.2.3')
 694 dep_thread = dependency('threads')
 695 if dep_thread.found() and host_machine.system() != 'windows'
 696   pre_args += '-DHAVE_PTHREAD'
 697 endif
 698 dep_elf = dependency('libelf', required : false)
 699 if not dep_elf.found() and (with_amd_vk or with_gallium_radeonsi) # TODO: clover, r600
 700   dep_elf = cc.find_library('elf')
 701 endif
 702 dep_expat = dependency('expat')
 703 # this only exists on linux so either this is linux and it will be found, or
 704 # its not linux and and wont
 705 dep_m = cc.find_library('m', required : false)
 706
 707 dep_libdrm_amdgpu = []
 708 dep_libdrm_radeon = []
 709 dep_libdrm_nouveau = []
 710 dep_libdrm_etnaviv = []
 711 dep_libdrm_freedreno = []
 712 if with_amd_vk or with_gallium_radeonsi
 713   dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.88')
 714 endif
 715 if with_gallium_radeonsi or with_dri_r100 or with_dri_r200
 716   dep_libdrm_radeon = dependency('libdrm_radeon', version : '>= 2.4.71')
 717 endif
 718 if with_gallium_nouveau or with_dri_nouveau
 719   dep_libdrm_nouveau = dependency('libdrm_nouveau', version : '>= 2.4.66')
 720 endif
 721 if with_gallium_etnaviv
 722   dep_libdrm_etnaviv = dependency('libdrm_etnaviv', version : '>= 2.4.82')
 723 endif
 724 if with_gallium_freedreno
 725   dep_libdrm_freedreno = dependency('libdrm_freedreno', version : '>= 2.4.74')
 726 endif
 727
 728 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
 729 if with_amd_vk or with_gallium_radeonsi
 730   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
 731 endif
 732
 733 _llvm = get_option('llvm')
 734 if _llvm == 'auto'
 735   dep_llvm = dependency(
 736     'llvm', version : '>= 3.9.0', modules : llvm_modules,
 737     required : with_amd_vk or with_gallium_radeonsi,
 738   )
 739   with_llvm = dep_llvm.found()
 740 elif _llvm == 'true'
 741   dep_llvm = dependency('llvm', version : '>= 3.9.0', modules : llvm_modules)
 742   with_llvm = true
 743 else
 744   dep_llvm = []
 745   with_llvm = false
 746 endif
 747 if with_llvm
 748   _llvm_version = dep_llvm.version().split('.')
 749   # Development versions of LLVM have an 'svn' suffix, we don't want that for
 750   # our version checks.
 751   _llvm_patch = _llvm_version[2]
 752   if _llvm_patch.endswith('svn')
 753     _llvm_patch = _llvm_patch.split('s')[0]
 754   endif
 755   pre_args += [
 756     '-DHAVE_LLVM=0x0@0@@1@@2@'.format(_llvm_version[0], _llvm_version[1], _llvm_patch),
 757     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
 758   ]
 759 elif with_amd_vk or with_gallium_radeonsi
 760   error('The following drivers requires LLVM: Radv, RadeonSI. One of these is enabled, but LLVM is disabled.')
 761 endif
 762
 763 dep_glvnd = []
 764 if with_glvnd
 765   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
 766   pre_args += '-DUSE_LIBGLVND=1'
 767 endif
 768
 769 if with_valgrind != 'false'
 770   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
 771   if dep_valgrind.found()
 772     pre_args += '-DHAVE_VALGRIND'
 773   endif
 774 else
 775   dep_valgrind = []
 776 endif
 777
 778 # pthread stubs. Lets not and say we didn't
 779
 780 prog_bison = find_program('bison', required : with_any_opengl)
 781 prog_flex = find_program('flex', required : with_any_opengl)
 782
 783 dep_selinux = []
 784 if get_option('selinux')
 785   dep_selinux = dependency('libselinux')
 786   pre_args += '-DMESA_SELINUX'
 787 endif
 788
 789 # TODO: llvm-prefix and llvm-shared-libs
 790
 791 if with_libunwind != 'false'
 792   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
 793   if dep_unwind.found()
 794     pre_args += '-DHAVE_LIBUNWIND'
 795   endif
 796 else
 797   dep_unwind = []
 798 endif
 799
 800 # TODO: gallium-hud
 801
 802 if with_osmesa != 'none'
 803   if with_osmesa == 'classic' and not with_dri_swrast
 804     error('OSMesa classic requires dri (classic) swrast.')
 805   endif
 806   if with_osmesa == 'gallium' and not with_gallium_softpipe
 807     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
 808   endif
 809   osmesa_lib_name = 'OSMesa'
 810   osmesa_bits = get_option('osmesa-bits')
 811   if osmesa_bits != '8'
 812     if with_dri or with_glx != 'disabled'
 813       error('OSMesa bits must be 8 if building glx or dir based drivers')
 814     endif
 815     osmesa_lib_name = osmesa_lib_name + osmesa_bits
 816     pre_args += [
 817       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
 818     ]
 819   endif
 820 endif
 821
 822 # TODO: symbol mangling
 823
 824 if with_platform_wayland
 825   prog_wl_scanner = find_program('wayland-scanner')
 826   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
 827   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
 828   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
 829   wayland_dmabuf_xml = join_paths(
 830     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
 831     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
 832   )
 833   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
 834 else
 835   prog_wl_scanner = []
 836   dep_wl_protocols = []
 837   dep_wayland_client = []
 838   dep_wayland_server = []
 839   wayland_dmabuf_xml = ''
 840 endif
 841
 842 dep_x11 = []
 843 dep_xext = []
 844 dep_xdamage = []
 845 dep_xfixes = []
 846 dep_x11_xcb = []
 847 dep_xcb = []
 848 dep_xcb_glx = []
 849 dep_xcb_dri2 = []
 850 dep_xcb_dri3 = []
 851 dep_dri2proto = []
 852 dep_glproto = []
 853 dep_xxf86vm = []
 854 dep_xcb_dri3 = []
 855 dep_xcb_present = []
 856 dep_xcb_sync = []
 857 dep_xcb_xfixes = []
 858 dep_xshmfence = []
 859 if with_platform_x11
 860   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 861     dep_x11 = dependency('x11')
 862     dep_xext = dependency('xext')
 863     dep_xcb = dependency('xcb')
 864   elif with_glx == 'dri' and with_dri_platform == 'drm'
 865     dep_x11 = dependency('x11')
 866     dep_xext = dependency('xext')
 867     dep_xdamage = dependency('xdamage', version : '>= 1.1')
 868     dep_xfixes = dependency('xfixes')
 869     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
 870     dep_xxf86vm = dependency('xxf86vm', required : false)
 871   endif
 872   if with_any_vk or (with_glx == 'dri' and with_dri_platform == 'drm')
 873     dep_xcb = dependency('xcb')
 874     dep_x11_xcb = dependency('x11-xcb')
 875     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
 876
 877     if with_dri3
 878       pre_args += '-DHAVE_DRI3'
 879       dep_xcb_dri3 = dependency('xcb-dri3')
 880       dep_xcb_present = dependency('xcb-present')
 881       dep_xcb_sync = dependency('xcb-sync')
 882       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
 883     endif
 884   endif
 885   if with_glx == 'dri'
 886     dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
 887     dep_glproto = dependency('glproto', version : '>= 1.4.14')
 888   endif
 889   if with_egl
 890     dep_xcb_xfixes = dependency('xcb-xfixes')
 891   endif
 892 endif
 893
 894 # TODO: nine
 895
 896 # TODO: clover
 897
 898 # TODO: gallium tests
 899
 900 # TODO: various libdirs
 901
 902 # TODO: swr
 903
 904 # TODO: gallium driver dirs
 905
 906 # FIXME: this is a workaround for #2326
 907 prog_touch = find_program('touch')
 908 dummy_cpp = custom_target(
 909   'dummy_cpp',
 910   output : 'dummy.cpp',
 911   command : [prog_touch, '@OUTPUT@'],
 912 )
 913
 914 foreach a : pre_args
 915   add_project_arguments(a, language : ['c', 'cpp'])
 916 endforeach
 917 foreach a : c_args
 918   add_project_arguments(a, language : ['c'])
 919 endforeach
 920 foreach a : cpp_args
 921   add_project_arguments(a, language : ['cpp'])
 922 endforeach
 923
 924 inc_include = include_directories('include')
 925
 926 gl_priv_reqs = [
 927   'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
 928   'xcb-glx >= 1.8.1', 'libdrm >= 2.4.75',
 929 ]
 930 if dep_xxf86vm != [] and dep_xxf86vm.found()
 931   gl_priv_reqs += 'xxf86vm'
 932 endif
 933 if with_dri_platform == 'drm'
 934   gl_priv_reqs += 'xcb-dri2 >= 1.8'
 935 endif
 936
 937 gl_priv_libs = []
 938 if dep_thread.found()
 939   gl_priv_libs += ['-lpthread', '-pthread']
 940 endif
 941 if dep_m.found()
 942   gl_priv_libs += '-lm'
 943 endif
 944 if dep_dl != [] and dep_dl.found()
 945   gl_priv_libs += '-ldl'
 946 endif
 947
 948 pkg = import('pkgconfig')
 949
 950 subdir('include')
 951 subdir('bin')
 952 subdir('src')