1# Copyright © 2017-2020 Intel Corporation
2
3# Permission is hereby granted, free of charge, to any person obtaining a copy
4# of this software and associated documentation files (the "Software"), to deal
5# in the Software without restriction, including without limitation the rights
6# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7# copies of the Software, and to permit persons to whom the Software is
8# furnished to do so, subject to the following conditions:
9
10# The above copyright notice and this permission notice shall be included in
11# all copies or substantial portions of the Software.
12
13# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
19# SOFTWARE.
20
21project(
22  'mesa',
23  ['c', 'cpp'],
24  version : run_command(
25    [find_program('python3', 'python'), 'bin/meson_get_version.py'],
26    check : true
27  ).stdout(),
28  license : 'MIT',
29  meson_version : '>= 0.53',
30  default_options : ['buildtype=debugoptimized', 'b_ndebug=if-release', 'c_std=c11', 'cpp_std=c++14']
31)
32
33# In recent versions, meson can inject some extra arguments to get richer
34# results from gtest based tests.  Feature was added in 0.55, but requiring
35# 0.59.2 to include an important fix.  See https://github.com/mesonbuild/meson/pull/9283.
36gtest_test_protocol = 'exitcode'
37if meson.version().version_compare('>= 0.59.2')
38  gtest_test_protocol = 'gtest'
39endif
40
41cc = meson.get_compiler('c')
42cpp = meson.get_compiler('cpp')
43
44null_dep = dependency('', required : false)
45
46if get_option('layout') != 'mirror'
47  error('`mirror` is the only build directory layout supported')
48endif
49
50# Arguments for the preprocessor, put these in a separate array from the C and
51# C++ (cpp in meson terminology) arguments since they need to be added to the
52# default arguments for both C and C++.
53pre_args = [
54  '-D__STDC_CONSTANT_MACROS',
55  '-D__STDC_FORMAT_MACROS',
56  '-D__STDC_LIMIT_MACROS',
57  '-DPACKAGE_VERSION="@0@"'.format(meson.project_version()),
58  '-DPACKAGE_BUGREPORT="https://gitlab.freedesktop.org/mesa/mesa/-/issues"',
59]
60c_args = []
61cpp_args = []
62
63with_moltenvk_dir = get_option('moltenvk-dir')
64with_vulkan_icd_dir = get_option('vulkan-icd-dir')
65with_tests = get_option('build-tests')
66with_aco_tests = get_option('build-aco-tests')
67with_glx_read_only_text = get_option('glx-read-only-text')
68with_glx_direct = get_option('glx-direct')
69with_osmesa = get_option('osmesa')
70with_vulkan_overlay_layer = get_option('vulkan-layers').contains('overlay')
71with_vulkan_device_select_layer = get_option('vulkan-layers').contains('device-select')
72with_tools = get_option('tools')
73if with_tools.contains('all')
74  with_tools = [
75    'drm-shim',
76    'dlclose-skip',
77    'etnaviv',
78    'freedreno',
79    'glsl',
80    'intel',
81    'intel-ui',
82    'lima',
83    'nir',
84    'nouveau',
85    'xvmc',
86    'asahi',
87    'imagination',
88  ]
89endif
90
91with_any_vulkan_layers = get_option('vulkan-layers').length() != 0
92with_intel_tools = with_tools.contains('intel') or with_tools.contains('intel-ui')
93with_imgui = with_intel_tools or with_vulkan_overlay_layer
94
95dri_drivers_path = get_option('dri-drivers-path')
96if dri_drivers_path == ''
97  dri_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'dri' + get_option('egl-lib-suffix'))
98endif
99dri_search_path = get_option('dri-search-path')
100if dri_search_path == ''
101  dri_search_path = dri_drivers_path
102endif
103
104gbm_backends_path = get_option('gbm-backends-path')
105if gbm_backends_path == ''
106  gbm_backends_path = join_paths(get_option('prefix'), get_option('libdir'), 'gbm')
107endif
108
109with_gles1 = get_option('gles1')
110if with_gles1 == 'true'
111  with_gles1 = 'enabled'
112  warning('gles1 option "true" deprecated, please use "enabled" instead.')
113elif with_gles1 == 'false'
114  with_gles1 = 'disabled'
115  warning('gles1 option "false" deprecated, please use "disabled" instead.')
116endif
117with_gles2 = get_option('gles2')
118if with_gles2 == 'true'
119  with_gles2 = 'enabled'
120  warning('gles2 option "true" deprecated, please use "enabled" instead.')
121elif with_gles2 == 'false'
122  with_gles2 = 'disabled'
123  warning('gles2 option "false" deprecated, please use "disabled" instead.')
124endif
125if host_machine.system() == 'windows'
126  if with_gles1 == 'auto'
127    with_gles1 = 'disabled'
128  endif
129  if with_gles2 == 'auto'
130    with_gles2 = 'disabled'
131  endif
132endif
133with_opengl = get_option('opengl')
134
135# Default shared glapi off for windows, on elsewhere.
136_sg = get_option('shared-glapi')
137if _sg == 'true'
138  _sg = 'enabled'
139  warning('shared-glapi option "true" deprecated, please use "enabled" instead.')
140elif _sg == 'false'
141  _sg = 'disabled'
142  warning('shared-glapi option "false" deprecated, please use "disabled" instead.')
143endif
144if _sg == 'auto'
145  with_shared_glapi = host_machine.system() != 'windows'
146else
147  with_shared_glapi = _sg == 'enabled'
148endif
149
150# shared-glapi is required if at least two OpenGL APIs are being built
151if not with_shared_glapi
152  if ((with_gles1 == 'enabled' and with_gles2 == 'enabled') or
153      (with_gles1 == 'enabled' and with_opengl) or
154      (with_gles2 == 'enabled' and with_opengl))
155    error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
156  endif
157  with_gles1 = 'disabled'
158  with_gles2 = 'disabled'
159endif
160
161# We require OpenGL for OpenGL ES
162if not with_opengl
163  if (with_gles1 == 'enabled' or with_gles2 == 'enabled') and not with_opengl
164    error('building OpenGL ES without OpenGL is not supported.')
165  endif
166  with_gles1 = 'disabled'
167  with_gles2 = 'disabled'
168endif
169
170with_gles1 = with_gles1 != 'disabled'
171with_gles2 = with_gles2 != 'disabled'
172with_any_opengl = with_opengl or with_gles1 or with_gles2
173# Only build shared_glapi if at least one OpenGL API is enabled
174with_shared_glapi = with_shared_glapi and with_any_opengl
175
176system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'gnu/kfreebsd', 'dragonfly', 'linux', 'sunos'].contains(host_machine.system())
177
178dri_drivers = get_option('dri-drivers')
179if dri_drivers.length() != 0
180  error('Mesa\'s main branch no longer has any "classic" drivers, use the "amber" branch instead.')
181endif
182
183with_dri = dri_drivers.length() != 0
184
185gallium_drivers = get_option('gallium-drivers')
186if gallium_drivers.contains('auto')
187  if system_has_kms_drm
188    # TODO: PPC, Sparc
189    if ['x86', 'x86_64'].contains(host_machine.cpu_family())
190      gallium_drivers = [
191        'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'svga', 'swrast',
192        'iris', 'crocus', 'i915'
193      ]
194    elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
195      gallium_drivers = [
196        'v3d', 'vc4', 'freedreno', 'etnaviv', 'nouveau',
197        'tegra', 'virgl', 'lima', 'panfrost', 'swrast'
198      ]
199    elif ['mips', 'mips64', 'riscv32', 'riscv64'].contains(host_machine.cpu_family())
200      gallium_drivers = [
201        'r300', 'r600', 'radeonsi', 'nouveau', 'virgl', 'swrast'
202      ]
203    else
204      error('Unknown architecture @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
205            host_machine.cpu_family()))
206    endif
207  elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
208    gallium_drivers = ['swrast']
209  else
210    error('Unknown OS @0@. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.'.format(
211          host_machine.system()))
212  endif
213endif
214with_gallium_radeonsi = gallium_drivers.contains('radeonsi')
215with_gallium_r300 = gallium_drivers.contains('r300')
216with_gallium_r600 = gallium_drivers.contains('r600')
217with_gallium_nouveau = gallium_drivers.contains('nouveau')
218with_gallium_freedreno = gallium_drivers.contains('freedreno')
219with_gallium_softpipe = gallium_drivers.contains('swrast')
220with_gallium_vc4 = gallium_drivers.contains('vc4')
221with_gallium_v3d = gallium_drivers.contains('v3d')
222with_gallium_panfrost = gallium_drivers.contains('panfrost')
223with_gallium_etnaviv = gallium_drivers.contains('etnaviv')
224with_gallium_tegra = gallium_drivers.contains('tegra')
225with_gallium_crocus = gallium_drivers.contains('crocus')
226with_gallium_iris = gallium_drivers.contains('iris')
227with_gallium_i915 = gallium_drivers.contains('i915')
228with_gallium_svga = gallium_drivers.contains('svga')
229with_gallium_virgl = gallium_drivers.contains('virgl')
230with_gallium_lima = gallium_drivers.contains('lima')
231with_gallium_zink = gallium_drivers.contains('zink')
232with_gallium_d3d12 = gallium_drivers.contains('d3d12')
233with_gallium_asahi = gallium_drivers.contains('asahi')
234
235with_gallium = gallium_drivers.length() != 0
236with_gallium_kmsro = with_gallium_v3d or with_gallium_vc4 or with_gallium_etnaviv or with_gallium_panfrost or with_gallium_lima or with_gallium_freedreno
237
238if with_gallium and system_has_kms_drm
239  _glx = get_option('glx')
240  _egl = get_option('egl')
241  if _glx == 'dri' or _egl == 'enabled' or (_glx == 'disabled' and _egl != 'disabled')
242    with_dri = true
243  endif
244endif
245
246_vulkan_drivers = get_option('vulkan-drivers')
247if _vulkan_drivers.contains('auto')
248  if system_has_kms_drm
249    if host_machine.cpu_family().startswith('x86')
250      _vulkan_drivers = ['amd', 'intel', 'swrast']
251    elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
252      _vulkan_drivers = ['swrast']
253    elif ['mips', 'mips64', 'riscv32', 'riscv64'].contains(host_machine.cpu_family())
254      _vulkan_drivers = ['amd', 'swrast']
255    else
256      error('Unknown architecture @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
257            host_machine.cpu_family()))
258    endif
259  elif ['darwin', 'windows', 'cygwin', 'haiku'].contains(host_machine.system())
260    # No vulkan driver supports windows or macOS currently
261    _vulkan_drivers = []
262  else
263    error('Unknown OS @0@. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.'.format(
264          host_machine.system()))
265  endif
266endif
267
268with_intel_vk = _vulkan_drivers.contains('intel')
269with_amd_vk = _vulkan_drivers.contains('amd')
270with_freedreno_vk = _vulkan_drivers.contains('freedreno')
271with_panfrost_vk = _vulkan_drivers.contains('panfrost')
272with_swrast_vk = _vulkan_drivers.contains('swrast')
273with_virtio_vk = _vulkan_drivers.contains('virtio-experimental')
274with_freedreno_kgsl = get_option('freedreno-kgsl')
275with_freedreno_virtio = get_option('freedreno-virtio')
276with_broadcom_vk = _vulkan_drivers.contains('broadcom')
277with_imagination_vk = _vulkan_drivers.contains('imagination-experimental')
278with_imagination_srv = get_option('imagination-srv')
279with_microsoft_vk = _vulkan_drivers.contains('microsoft-experimental')
280with_any_vk = _vulkan_drivers.length() != 0
281
282with_any_broadcom = with_gallium_vc4 or with_gallium_v3d or with_broadcom_vk
283with_any_intel = with_intel_vk or with_gallium_iris or with_gallium_crocus
284
285if with_swrast_vk and not with_gallium_softpipe
286  error('swrast vulkan requires gallium swrast')
287endif
288if with_gallium_tegra and not with_gallium_nouveau
289  error('tegra driver requires nouveau driver')
290endif
291if with_aco_tests and not with_amd_vk
292  error('ACO tests require Radv')
293endif
294
295with_microsoft_clc = get_option('microsoft-clc').enabled()
296with_intel_clc = get_option('intel-clc').enabled()
297with_clc = with_microsoft_clc or with_intel_clc
298with_libclc = with_clc
299with_spirv_to_dxil = get_option('spirv-to-dxil')
300
301if host_machine.system() == 'darwin'
302  with_dri_platform = 'apple'
303  pre_args += '-DBUILDING_MESA'
304elif ['windows', 'cygwin'].contains(host_machine.system())
305  with_dri_platform = 'windows'
306elif system_has_kms_drm
307  with_dri_platform = 'drm'
308else
309  # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
310  # assert here that one of those cases has been met.
311  # FIXME: illumos ends up here as well
312  with_dri_platform = 'none'
313endif
314
315with_vulkan_beta = get_option('vulkan-beta')
316if with_vulkan_beta
317  pre_args += '-DVK_ENABLE_BETA_EXTENSIONS'
318endif
319
320_platforms = get_option('platforms')
321if _platforms.contains('auto')
322  if system_has_kms_drm
323    _platforms = ['x11', 'wayland']
324  elif ['darwin', 'cygwin'].contains(host_machine.system())
325    _platforms = ['x11']
326  elif ['haiku'].contains(host_machine.system())
327    _platforms = ['haiku']
328  elif host_machine.system() == 'windows'
329    _platforms = ['windows']
330  else
331    error('Unknown OS @0@. Please pass -Dplatforms to set platforms. Patches gladly accepted to fix this.'.format(
332          host_machine.system()))
333  endif
334endif
335
336with_platform_android = _platforms.contains('android')
337with_platform_x11 = _platforms.contains('x11')
338with_platform_wayland = _platforms.contains('wayland')
339with_platform_haiku = _platforms.contains('haiku')
340with_platform_windows = _platforms.contains('windows')
341
342with_glx = get_option('glx')
343if with_glx == 'auto'
344  if with_platform_android
345    with_glx = 'disabled'
346  elif with_dri
347    with_glx = 'dri'
348  elif with_platform_haiku
349    with_glx = 'disabled'
350  elif host_machine.system() == 'windows'
351    with_glx = 'disabled'
352  elif with_gallium
353    # Even when building just gallium drivers the user probably wants dri
354    with_glx = 'dri'
355  elif with_platform_x11 and with_any_opengl and not with_any_vk
356    # The automatic behavior should not be to turn on xlib based glx when
357    # building only vulkan drivers
358    with_glx = 'xlib'
359  else
360    with_glx = 'disabled'
361  endif
362endif
363if with_glx == 'dri'
364   if with_gallium
365      with_dri = true
366   endif
367endif
368
369if not (with_dri or with_gallium or with_glx != 'disabled')
370  with_gles1 = false
371  with_gles2 = false
372  with_opengl = false
373  with_any_opengl = false
374  with_shared_glapi = false
375endif
376
377_gbm = get_option('gbm')
378if _gbm == 'true'
379  _gbm = 'enabled'
380  warning('gbm option "true" deprecated, please use "enabled" instead.')
381elif _gbm == 'false'
382  _gbm = 'disabled'
383  warning('gbm option "false" deprecated, please use "disabled" instead.')
384endif
385if _gbm == 'auto'
386  with_gbm = system_has_kms_drm and with_dri
387else
388  with_gbm = _gbm == 'enabled'
389endif
390if with_gbm and not system_has_kms_drm
391  error('GBM only supports DRM/KMS platforms')
392endif
393
394_xlib_lease = get_option('xlib-lease')
395if _xlib_lease == 'true'
396  _xlib_lease = 'enabled'
397  warning('xlib_lease option "true" deprecated, please use "enabled" instead.')
398elif _xlib_lease == 'false'
399  _xlib_lease = 'disabled'
400  warning('xlib_lease option "false" deprecated, please use "disabled" instead.')
401endif
402if _xlib_lease == 'auto'
403  with_xlib_lease = with_platform_x11 and system_has_kms_drm
404else
405  with_xlib_lease = _xlib_lease == 'enabled'
406endif
407
408if with_platform_wayland
409  c_args += '-DVK_USE_PLATFORM_WAYLAND_KHR'
410  #add this once aco and other places can build with it
411  #cpp_args += '-DVK_USE_PLATFORM_WAYLAND_KHR'
412endif
413if with_platform_x11
414  c_args += ['-DVK_USE_PLATFORM_XCB_KHR', '-DVK_USE_PLATFORM_XLIB_KHR']
415  #add this once aco and other places can build with it
416  #cpp_args += ['-DVK_USE_PLATFORM_XCB_KHR', '-DVK_USE_PLATFORM_XLIB_KHR']
417endif
418if with_platform_windows
419  c_args += '-DVK_USE_PLATFORM_WIN32_KHR'
420  #add this once aco and other places can build with it
421  #cpp_args += '-DVK_USE_PLATFORM_WIN32_KHR'
422endif
423if with_platform_android
424  c_args += '-DVK_USE_PLATFORM_ANDROID_KHR'
425  cpp_args += '-DVK_USE_PLATFORM_ANDROID_KHR'
426endif
427if with_xlib_lease
428  c_args += '-DVK_USE_PLATFORM_XLIB_XRANDR_EXT'
429  #add this once aco and other places can build with it
430  #cpp_args += '-DVK_USE_PLATFORM_XLIB_XRANDR_EXT'
431endif
432if system_has_kms_drm and not with_platform_android
433  c_args += '-DVK_USE_PLATFORM_DISPLAY_KHR'
434  cpp_args += '-DVK_USE_PLATFORM_DISPLAY_KHR'
435endif
436if host_machine.system() == 'darwin'
437  c_args += '-DVK_USE_PLATFORM_MACOS_MVK'
438  cpp_args += '-DVK_USE_PLATFORM_MACOS_MVK'
439  c_args += '-DVK_USE_PLATFORM_METAL_EXT'
440  cpp_args += '-DVK_USE_PLATFORM_METAL_EXT'
441  #macOS seems to need beta extensions to build for now:
442  c_args += '-DVK_ENABLE_BETA_EXTENSIONS'
443  cpp_args += '-DVK_ENABLE_BETA_EXTENSIONS'
444endif
445
446_egl = get_option('egl')
447if _egl == 'true'
448  _egl = 'enabled'
449  warning('egl option "true" deprecated, please use "enabled" instead.')
450elif _egl == 'false'
451  _egl = 'disabled'
452  warning('egl option "false" deprecated, please use "disabled" instead.')
453endif
454if _egl == 'auto'
455  with_egl = (
456    host_machine.system() != 'darwin' and
457    (with_platform_windows or with_dri) and
458    with_shared_glapi
459  )
460elif _egl == 'enabled'
461  if not with_dri and not with_platform_haiku and not with_platform_windows
462    error('EGL requires dri, haiku, or windows')
463  elif not with_shared_glapi
464    error('EGL requires shared-glapi')
465  elif not ['disabled', 'dri'].contains(with_glx)
466    error('EGL requires dri, but a GLX is being built without dri')
467  elif host_machine.system() == 'darwin'
468    error('EGL is not available on MacOS')
469  endif
470  with_egl = true
471else
472  with_egl = false
473endif
474
475if with_egl
476  _platforms += 'surfaceless'
477  if with_gbm and not with_platform_android
478    _platforms += 'drm'
479  endif
480
481  egl_native_platform = get_option('egl-native-platform')
482  if egl_native_platform.contains('auto')
483    egl_native_platform = _platforms[0]
484  endif
485endif
486
487if with_egl and not _platforms.contains(egl_native_platform)
488  error('-Degl-native-platform does not specify an enabled platform')
489endif
490
491if 'x11' in _platforms
492  _platforms += 'xcb'
493endif
494
495foreach platform : _platforms
496  pre_args += '-DHAVE_@0@_PLATFORM'.format(platform.to_upper())
497endforeach
498
499use_elf_tls = true
500pre_args += '-DUSE_ELF_TLS'
501
502if with_platform_android and get_option('platform-sdk-version') >= 29
503  # By default the NDK compiler, at least, emits emutls references instead of
504  # ELF TLS, even when building targeting newer API levels.  Make it actually do
505  # ELF TLS instead.
506  c_args += '-fno-emulated-tls'
507  cpp_args += '-fno-emulated-tls'
508endif
509
510# -mtls-dialect=gnu2 speeds up non-initial-exec TLS significantly but requires
511# full toolchain (including libc) support.
512have_mtls_dialect = false
513foreach c_arg : get_option('c_args')
514  if c_arg.startswith('-mtls-dialect=')
515    have_mtls_dialect = true
516    break
517  endif
518endforeach
519if not have_mtls_dialect
520  # need .run to check libc support. meson aborts when calling .run when
521  # cross-compiling, but because this is just an optimization we can skip it
522  if meson.is_cross_build() and not meson.has_exe_wrapper()
523    warning('cannot auto-detect -mtls-dialect when cross-compiling, using compiler default')
524  else
525    # -fpic to force dynamic tls, otherwise TLS relaxation defeats check
526    gnu2_test = cc.run('int __thread x; int main() { return x; }',
527                       args: ['-mtls-dialect=gnu2', '-fpic'],
528                       name: '-mtls-dialect=gnu2')
529    if gnu2_test.returncode() == 0 and (
530          # check for lld 13 bug: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5665
531          host_machine.cpu_family() != 'x86_64' or
532          # get_linker_id misses LDFLAGS=-fuse-ld=lld: https://github.com/mesonbuild/meson/issues/6377
533          #cc.get_linker_id() != 'ld.lld' or
534          cc.links('''int __thread x; int y; int main() { __asm__(
535                "leaq x@TLSDESC(%rip), %rax\n"
536                "movq y@GOTPCREL(%rip), %rdx\n"
537                "call *x@TLSCALL(%rax)\n"); }''', name: 'split TLSDESC')
538          )
539      c_args += '-mtls-dialect=gnu2'
540      cpp_args += '-mtls-dialect=gnu2'
541    endif
542  endif
543endif
544
545if with_platform_windows and with_shared_glapi
546  # Windows doesn't support DLL exports/imports being TLS variables. When using shared
547  # glapi, libglapi.dll hosts the TLS, but other DLLs need to use them. Instead of falling
548  # all the way back to using globals and manual per-thread data, keep using TLS but just
549  # put accesses to it behind a function so the variable doesn't need to be exported.
550  pre_args += '-DUSE_TLS_BEHIND_FUNCTIONS'
551endif
552
553if with_glx != 'disabled'
554  if not (with_platform_x11 and with_any_opengl)
555    error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
556  elif with_glx == 'xlib'
557    if not with_gallium
558      error('xlib based GLX requires at least one gallium driver')
559    elif not with_gallium_softpipe
560      error('xlib based GLX requires softpipe or llvmpipe.')
561    elif with_dri
562      error('xlib conflicts with any dri driver')
563    endif
564  elif with_glx == 'dri'
565    if not with_shared_glapi
566      error('dri based GLX requires shared-glapi')
567    endif
568  endif
569endif
570
571with_glvnd = get_option('glvnd')
572glvnd_vendor_name = get_option('glvnd-vendor-name')
573if with_glvnd
574  if with_platform_windows
575    error('glvnd cannot be used on Windows')
576  elif with_glx == 'xlib'
577    error('Cannot build glvnd support for GLX that is not DRI based.')
578  elif with_glx == 'disabled' and not with_egl
579    error('glvnd requires DRI based GLX and/or EGL')
580  endif
581endif
582
583if with_vulkan_icd_dir == ''
584  with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
585endif
586
587# GNU/Hurd includes egl_dri2, without drm.
588with_dri2 = (with_dri or with_any_vk) and (with_dri_platform == 'drm' or
589  host_machine.system() == 'gnu')
590_dri3 = get_option('dri3')
591if _dri3 == 'true'
592  _dri3 = 'enabled'
593  warning('dri3 option "true" deprecated, please use "enabled" instead.')
594elif _dri3 == 'false'
595  _dri3 = 'disabled'
596  warning('dri3 option "false" deprecated, please use "disabled" instead.')
597endif
598if _dri3 == 'auto'
599  with_dri3 = system_has_kms_drm and with_dri2
600else
601  with_dri3 = _dri3 == 'enabled'
602endif
603
604if with_any_vk and (with_platform_x11 and not with_dri3)
605  error('Vulkan drivers require dri3 for X11 support')
606endif
607if with_dri
608  if with_glx == 'disabled' and not with_egl and not with_gbm
609    error('building dri drivers require at least one windowing system')
610  endif
611endif
612
613if with_gallium_kmsro and (with_platform_x11 and not with_dri3)
614  error('kmsro requires dri3 for X11 support')
615endif
616
617_vdpau = get_option('gallium-vdpau')
618if _vdpau == 'true'
619  _vdpau = 'enabled'
620  warning('gallium-vdpau option "true" deprecated, please use "enabled" instead.')
621elif _vdpau == 'false'
622  _vdpau = 'disabled'
623  warning('gallium-vdpau option "false" deprecated, please use "disabled" instead.')
624endif
625if not system_has_kms_drm
626  if _vdpau == 'enabled'
627    error('VDPAU state tracker can only be build on unix-like OSes.')
628  else
629    _vdpau = 'disabled'
630  endif
631elif not with_platform_x11
632  if _vdpau == 'enabled'
633    error('VDPAU state tracker requires X11 support.')
634  else
635    _vdpau = 'disabled'
636  endif
637elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
638          with_gallium_nouveau)
639  if _vdpau == 'enabled'
640    error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
641  else
642    _vdpau = 'disabled'
643  endif
644endif
645dep_vdpau = null_dep
646with_gallium_vdpau = false
647if _vdpau != 'disabled'
648  dep_vdpau = dependency('vdpau', version : '>= 1.1', required : _vdpau == 'enabled')
649  if dep_vdpau.found()
650    dep_vdpau = dep_vdpau.partial_dependency(compile_args : true)
651    with_gallium_vdpau = true
652  endif
653endif
654
655if with_gallium_vdpau
656  pre_args += '-DHAVE_ST_VDPAU'
657endif
658vdpau_drivers_path = get_option('vdpau-libs-path')
659if vdpau_drivers_path == ''
660  vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau' + get_option('egl-lib-suffix'))
661endif
662
663if with_gallium_zink
664  dep_vulkan = dependency('vulkan')
665endif
666
667dep_dxheaders = null_dep
668if with_gallium_d3d12 or with_microsoft_clc or with_microsoft_vk
669  dep_dxheaders = dependency('directx-headers', required : false)
670  if not dep_dxheaders.found()
671    dep_dxheaders = dependency('DirectX-Headers', fallback : ['DirectX-Headers', 'dep_dxheaders'],
672      required : with_gallium_d3d12 or with_microsoft_vk
673    )
674  endif
675endif
676
677if with_vulkan_overlay_layer or with_aco_tests
678  prog_glslang = find_program('glslangValidator')
679endif
680
681_xvmc = get_option('gallium-xvmc')
682if _xvmc == 'true'
683  _xvmc = 'enabled'
684  warning('gallium-xvmc option "true" deprecated, please use "enabled" instead.')
685elif _xvmc == 'false'
686  _xvmc = 'disabled'
687  warning('gallium-xvmc option "false" deprecated, please use "disabled" instead.')
688endif
689if not system_has_kms_drm
690  if _xvmc == 'enabled'
691    error('XVMC state tracker can only be build on unix-like OSes.')
692  else
693    _xvmc = 'disabled'
694  endif
695elif not with_platform_x11
696  if _xvmc == 'enabled'
697    error('XVMC state tracker requires X11 support.')
698  else
699    _xvmc = 'disabled'
700  endif
701elif not (with_gallium_r600 or with_gallium_nouveau)
702  if _xvmc == 'enabled'
703    error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
704  else
705    _xvmc = 'disabled'
706  endif
707endif
708dep_xvmc = null_dep
709dep_xv = null_dep
710with_gallium_xvmc = false
711if _xvmc != 'disabled'
712  dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : _xvmc == 'enabled')
713  dep_xv = dependency('xv', required : _xvmc == 'enabled')
714  with_gallium_xvmc = dep_xvmc.found() and dep_xv.found()
715endif
716
717xvmc_drivers_path = get_option('xvmc-libs-path')
718if xvmc_drivers_path == ''
719  xvmc_drivers_path = get_option('libdir')
720endif
721
722_omx = get_option('gallium-omx')
723if not system_has_kms_drm
724  if ['auto', 'disabled'].contains(_omx)
725    _omx = 'disabled'
726  else
727    error('OMX state tracker can only be built on unix-like OSes.')
728  endif
729elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
730  if ['auto', 'disabled'].contains(_omx)
731    _omx = 'disabled'
732  else
733    error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
734  endif
735endif
736with_gallium_omx = _omx
737dep_omx = null_dep
738dep_omx_other = []
739if ['auto', 'bellagio'].contains(_omx)
740  dep_omx = dependency(
741    'libomxil-bellagio', required : _omx == 'bellagio'
742  )
743  if dep_omx.found()
744    with_gallium_omx = 'bellagio'
745  endif
746endif
747if ['auto', 'tizonia'].contains(_omx)
748  if with_dri and with_egl
749    dep_omx = dependency(
750      'libtizonia', version : '>= 0.10.0',
751      required : _omx == 'tizonia',
752    )
753    dep_omx_other = [
754      dependency('libtizplatform', required : _omx == 'tizonia'),
755      dependency('tizilheaders', required : _omx == 'tizonia'),
756    ]
757    if dep_omx.found() and dep_omx_other[0].found() and dep_omx_other[1].found()
758      with_gallium_omx = 'tizonia'
759    endif
760  elif _omx == 'tizonia'
761    error('OMX-Tizonia state tracker requires dri and egl')
762  endif
763endif
764if _omx == 'auto'
765  with_gallium_omx = 'disabled'
766else
767  with_gallium_omx = _omx
768endif
769
770pre_args += [
771  '-DENABLE_ST_OMX_BELLAGIO=' + (with_gallium_omx == 'bellagio' ? '1' : '0'),
772  '-DENABLE_ST_OMX_TIZONIA=' + (with_gallium_omx == 'tizonia' ? '1' : '0'),
773]
774
775
776omx_drivers_path = get_option('omx-libs-path')
777
778if with_gallium_omx != 'disabled'
779  # Figure out where to put the omx driver.
780  # FIXME: this could all be vastly simplified by adding a 'defined_variable'
781  # argument to meson's get_pkgconfig_variable method.
782  if omx_drivers_path == ''
783    _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
784    _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
785    if _omx_libdir == get_option('libdir')
786      omx_drivers_path = _omx_drivers_dir
787    else
788      _omx_base_dir = []
789      # This will fail on windows. Does OMX run on windows?
790      _omx_libdir = _omx_libdir.split('/')
791      _omx_drivers_dir = _omx_drivers_dir.split('/')
792      foreach o : _omx_drivers_dir
793        if not _omx_libdir.contains(o)
794          _omx_base_dir += o
795        endif
796      endforeach
797      omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
798    endif
799  endif
800endif
801
802_va = get_option('gallium-va')
803if _va == 'true'
804  _va = 'enabled'
805  warning('gallium-va option "true" deprecated, please use "enabled" instead.')
806elif _va == 'false'
807  _va = 'disabled'
808  warning('gallium-va option "false" deprecated, please use "disabled" instead.')
809endif
810if not system_has_kms_drm
811  if _va == 'enabled'
812    error('VA state tracker can only be built on unix-like OSes.')
813  else
814    _va = 'disabled'
815  endif
816elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
817  if _va == 'enabled'
818    error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
819  else
820    _va = 'disabled'
821  endif
822endif
823with_gallium_va = false
824dep_va = null_dep
825if _va != 'disabled'
826  dep_va = dependency('libva', version : '>= 1.8.0', required : _va == 'enabled')
827  if dep_va.found()
828    dep_va_headers = dep_va.partial_dependency(compile_args : true)
829    with_gallium_va = true
830    if cc.has_header_symbol('va/va.h', 'VASurfaceAttribDRMFormatModifiers',
831                            dependencies: dep_va_headers)
832      pre_args += '-DHAVE_VA_SURFACE_ATTRIB_DRM_FORMAT_MODIFIERS'
833    endif
834  endif
835endif
836
837va_drivers_path = get_option('va-libs-path')
838if va_drivers_path == ''
839  va_drivers_path = join_paths(get_option('libdir'), 'dri' + get_option('egl-lib-suffix'))
840endif
841
842_xa = get_option('gallium-xa')
843if _xa == 'true'
844  _xa = 'enabled'
845  warning('gallium-xa option "true" deprecated, please use "enabled" instead.')
846elif _xa == 'false'
847  _xa = 'disabled'
848  warning('gallium-xa option "false" deprecated, please use "disabled" instead.')
849endif
850if not system_has_kms_drm
851  if _xa == 'enabled'
852    error('XA state tracker can only be built on unix-like OSes.')
853  else
854    _xa = 'disabled'
855  endif
856elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
857          or with_gallium_svga)
858  if _xa == 'enabled'
859    error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
860  else
861    _xa = 'disabled'
862  endif
863endif
864with_gallium_xa = _xa != 'disabled'
865
866d3d_drivers_path = get_option('d3d-drivers-path')
867if d3d_drivers_path == ''
868  d3d_drivers_path = join_paths(get_option('prefix'), get_option('libdir'), 'd3d')
869endif
870
871with_gallium_st_nine =  get_option('gallium-nine')
872if with_gallium_st_nine
873  if not with_gallium_softpipe
874    error('The nine state tracker requires gallium softpipe/llvmpipe.')
875  elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
876            or with_gallium_r300 or with_gallium_svga or with_gallium_i915
877            or with_gallium_iris or with_gallium_crocus or with_gallium_zink)
878    error('The nine state tracker requires at least one non-swrast gallium driver.')
879  endif
880  if not with_dri3
881    error('Using nine with wine requires dri3')
882  endif
883endif
884with_gallium_st_d3d10umd =  get_option('gallium-d3d10umd')
885if with_gallium_st_d3d10umd
886  if not with_gallium_softpipe
887    error('The d3d10umd state tracker requires gallium softpipe/llvmpipe.')
888  endif
889endif
890_power8 = get_option('power8')
891if _power8 == 'true'
892  _power8 = 'enabled'
893  warning('power8 option "true" deprecated, please use "enabled" instead.')
894elif _power8 == 'false'
895  _power8 = 'disabled'
896  warning('power8 option "false" deprecated, please use "disabled" instead.')
897endif
898if _power8 != 'disabled'
899  if host_machine.cpu_family() == 'ppc64' and host_machine.endian() == 'little'
900    if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
901      error('Altivec is not supported with gcc version < 4.8.')
902    endif
903    if cc.compiles('''
904        #include <altivec.h>
905        int main() {
906          vector unsigned char r;
907          vector unsigned int v = vec_splat_u32 (1);
908          r = __builtin_vec_vgbbd ((vector unsigned char) v);
909          return 0;
910        }''',
911        args : '-mpower8-vector',
912        name : 'POWER8 intrinsics')
913      pre_args += ['-D_ARCH_PWR8', '-mpower8-vector']
914    elif get_option('power8') == 'enabled'
915      error('POWER8 intrinsic support required but not found.')
916    endif
917  endif
918endif
919
920if get_option('vmware-mks-stats')
921  if not with_gallium_svga
922    error('vmware-mks-stats requires gallium VMware/svga driver.')
923  endif
924  pre_args += '-DVMX86_STATS=1'
925endif
926
927_opencl = get_option('gallium-opencl')
928_rtti = get_option('cpp_rtti')
929if _opencl != 'disabled'
930  if not with_gallium
931    error('OpenCL Clover implementation requires at least one gallium driver.')
932  endif
933  if not _rtti
934    error('The Clover OpenCL state tracker requires rtti')
935  endif
936
937  with_libclc = true
938  with_gallium_opencl = true
939  with_opencl_icd = _opencl == 'icd'
940else
941  with_gallium_opencl = false
942  with_opencl_icd = false
943endif
944
945dep_clc = null_dep
946if with_libclc
947  dep_clc = dependency('libclc')
948endif
949
950gl_pkgconfig_c_flags = []
951if with_platform_x11
952  if with_glx == 'xlib' or with_glx == 'gallium-xlib'
953    pre_args += '-DUSE_XSHM'
954  else
955    pre_args += '-DGLX_INDIRECT_RENDERING'
956    if with_glx_direct
957      pre_args += '-DGLX_DIRECT_RENDERING'
958    endif
959    if with_dri_platform == 'drm'
960      pre_args += '-DGLX_USE_DRM'
961    elif with_dri_platform == 'apple'
962      pre_args += '-DGLX_USE_APPLEGL'
963    elif with_dri_platform == 'windows'
964      pre_args += '-DGLX_USE_WINDOWSGL'
965    endif
966  endif
967else
968  pre_args += '-DEGL_NO_X11'
969  gl_pkgconfig_c_flags += '-DEGL_NO_X11'
970endif
971
972with_android_stub = get_option('android-stub')
973if with_android_stub and not with_platform_android
974  error('`-D android-stub=true` makes no sense without `-D platforms=android`')
975endif
976
977if with_platform_android
978  dep_android_mapper4 = null_dep
979  if not with_android_stub
980    dep_android = [
981      dependency('cutils'),
982      dependency('hardware'),
983      dependency('sync'),
984      dependency('backtrace')
985    ]
986    if get_option('platform-sdk-version') >= 26
987      dep_android += dependency('nativewindow')
988    endif
989    if get_option('platform-sdk-version') >= 30
990      dep_android_mapper4 = dependency('android.hardware.graphics.mapper', version : '>= 4.0', required : false)
991    endif
992  endif
993  pre_args += [
994    '-DANDROID',
995    '-DANDROID_API_LEVEL=' + get_option('platform-sdk-version').to_string()
996  ]
997endif
998
999prog_python = import('python').find_installation('python3')
1000has_mako = run_command(
1001  prog_python, '-c',
1002  '''
1003from distutils.version import StrictVersion
1004import mako
1005assert StrictVersion(mako.__version__) > StrictVersion("0.8.0")
1006  ''', check: false)
1007if has_mako.returncode() != 0
1008  error('Python (3.x) mako module >= 0.8.0 required to build mesa.')
1009endif
1010
1011if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
1012  error('When using GCC, version 4.4.6 or later is required.')
1013endif
1014
1015# Support systems without ETIME (e.g. FreeBSD)
1016if cc.get_define('ETIME', prefix : '#include <errno.h>') == ''
1017  pre_args += '-DETIME=ETIMEDOUT'
1018endif
1019
1020# Define DEBUG for debug builds only (debugoptimized is not included on this one)
1021if get_option('buildtype') == 'debug'
1022  pre_args += '-DDEBUG'
1023endif
1024
1025with_shader_cache = false
1026_shader_cache = get_option('shader-cache')
1027if _shader_cache == 'true'
1028  _shader_cache = 'enabled'
1029  warning('shader_cache option "true" deprecated, please use "enabled" instead.')
1030elif _shader_cache == 'false'
1031  _shader_cache = 'disabled'
1032  warning('shader_cache option "false" deprecated, please use "disabled" instead.')
1033endif
1034if _shader_cache != 'disabled'
1035  if host_machine.system() == 'windows'
1036    if _shader_cache == 'enabled'
1037      error('Shader Cache does not currently work on Windows')
1038    endif
1039  else
1040    pre_args += '-DENABLE_SHADER_CACHE'
1041    if not get_option('shader-cache-default')
1042      pre_args += '-DSHADER_CACHE_DISABLE_BY_DEFAULT'
1043    endif
1044    with_shader_cache = true
1045  endif
1046endif
1047
1048if with_shader_cache
1049  shader_cache_max_size = get_option('shader-cache-max-size')
1050  if shader_cache_max_size != ''
1051    pre_args += '-DMESA_SHADER_CACHE_MAX_SIZE="@0@"'.format(shader_cache_max_size)
1052  endif
1053endif
1054
1055# Check for GCC style builtins
1056foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
1057             'ffsll', 'popcount', 'popcountll', 'unreachable', 'types_compatible_p']
1058  if cc.has_function(b)
1059    pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
1060  endif
1061endforeach
1062
1063# check for GCC __attribute__
1064_attributes = [
1065  'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
1066  'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
1067]
1068foreach a : cc.get_supported_function_attributes(_attributes)
1069  pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
1070endforeach
1071if cc.has_function_attribute('visibility:hidden')
1072  pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISIBILITY'
1073endif
1074if cc.compiles('__uint128_t foo(void) { return 0; }',
1075               name : '__uint128_t')
1076  pre_args += '-DHAVE_UINT128'
1077endif
1078
1079# TODO: this is very incomplete
1080if ['linux', 'cygwin', 'gnu', 'freebsd', 'gnu/kfreebsd', 'haiku'].contains(host_machine.system())
1081  pre_args += '-D_GNU_SOURCE'
1082elif host_machine.system() == 'sunos'
1083  pre_args += '-D__EXTENSIONS__'
1084elif host_machine.system() == 'windows'
1085  pre_args += [
1086    '-D_WINDOWS', '-D_WIN32_WINNT=0x0A00', '-DWINVER=0x0A00',
1087    '-DPIPE_SUBSYSTEM_WINDOWS_USER',
1088    '-D_USE_MATH_DEFINES',  # XXX: scons didn't use this for mingw
1089  ]
1090  if cc.get_id() == 'msvc'
1091    pre_args += [
1092      '-DVC_EXTRALEAN',
1093      '-D_CRT_SECURE_NO_WARNINGS',
1094      '-D_CRT_SECURE_NO_DEPRECATE',
1095      '-D_SCL_SECURE_NO_WARNINGS',
1096      '-D_SCL_SECURE_NO_DEPRECATE',
1097      '-D_ALLOW_KEYWORD_MACROS',
1098      '-D_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions
1099      '-DNOMINMAX',
1100    ]
1101  else
1102    # When the target is not mingw/ucrt
1103    # NOTE: clang's stddef.h are conflict with mingw/ucrt's stddef.h
1104    # So do not include headers that defined in clang for detecting
1105    # _UCRT
1106    if cc.compiles('''
1107      #include <string.h>
1108      #if defined(__MINGW32__) && defined(_UCRT)
1109      #error
1110      #endif
1111      int main(void) { return 0; }''')
1112      pre_args += ['-D__MSVCRT_VERSION__=0x0700']
1113    endif
1114  endif
1115elif host_machine.system() == 'openbsd'
1116  pre_args += '-D_ISOC11_SOURCE'
1117endif
1118
1119# Check for generic C arguments
1120c_msvc_compat_args = []
1121no_override_init_args = []
1122cpp_msvc_compat_args = []
1123if cc.get_id() == 'msvc'
1124  _trial = [
1125    '/wd4018',  # signed/unsigned mismatch
1126    '/wd4056',  # overflow in floating-point constant arithmetic
1127    '/wd4244',  # conversion from 'type1' to 'type2', possible loss of data
1128    '/wd4267',  # 'var' : conversion from 'size_t' to 'type', possible loss of data
1129    '/wd4305',  # trancation from 'type1' to 'type2'
1130    '/wd4351',  # new behavior: elements of array 'array' will be default initialized
1131    '/wd4756',  # overflow in constant arithmetic
1132    '/wd4800',  # forcing value to bool 'true' or 'false' (performance warning)
1133    '/wd4996',  # disabled deprecated POSIX name warnings
1134    '/wd4291',  # no matching operator delete found
1135    '/wd4146',  # unary minus operator applied to unsigned type, result still unsigned
1136    '/wd4200',  # nonstandard extension used: zero-sized array in struct/union
1137    '/wd4624',  # destructor was implicitly defined as deleted [from LLVM]
1138    '/wd4309',  # 'initializing': truncation of constant value
1139    '/wd4838',  # conversion from 'int' to 'const char' requires a narrowing conversion
1140    '/wd5105',  # macro expansion producing 'defined' has undefined behavior (winbase.h, need Windows SDK upgrade)
1141    '/we4020',  # Error when passing the wrong number of parameters
1142    '/we4024',  # Error when passing different type of parameter
1143    '/Zc:__cplusplus', #Set __cplusplus macro to match the /std:c++<version> on the command line
1144  ]
1145  c_args += cc.get_supported_arguments(_trial)
1146  cpp_args += cpp.get_supported_arguments(_trial)
1147else
1148  _trial_c = [
1149    '-Werror=implicit-function-declaration',
1150    '-Werror=missing-prototypes',
1151    '-Werror=return-type',
1152    '-Werror=empty-body',
1153    '-Werror=incompatible-pointer-types',
1154    '-Werror=int-conversion',
1155    '-Wimplicit-fallthrough',
1156    '-Wno-missing-field-initializers',
1157    '-Wno-format-truncation',
1158    '-fno-math-errno',
1159    '-fno-trapping-math',
1160    '-Qunused-arguments',
1161    '-fno-common',
1162    # Clang
1163    '-Wno-microsoft-enum-value',
1164  ]
1165  _trial_cpp = [
1166    '-Werror=return-type',
1167    '-Werror=empty-body',
1168    '-Wno-non-virtual-dtor',
1169    '-Wno-missing-field-initializers',
1170    '-Wno-format-truncation',
1171    '-fno-math-errno',
1172    '-fno-trapping-math',
1173    '-Qunused-arguments',
1174    # Some classes use custom new operator which zeroes memory, however
1175    # gcc does aggressive dead-store elimination which threats all writes
1176    # to the memory before the constructor as "dead stores".
1177    # For now we disable this optimization.
1178    '-flifetime-dse=1',
1179    # Clang
1180    '-Wno-microsoft-enum-value',
1181  ]
1182
1183  # MinGW chokes on format specifiers and I can't get it all working
1184  if not (cc.get_id() == 'gcc' and host_machine.system() == 'windows')
1185    _trial_c += ['-Werror=format', '-Wformat-security']
1186    _trial_cpp += ['-Werror=format', '-Wformat-security']
1187  endif
1188
1189  # FreeBSD annotated <pthread.h> but Mesa isn't ready
1190  if not (cc.get_id() == 'clang' and host_machine.system() == 'freebsd')
1191    _trial_c += ['-Werror=thread-safety']
1192  endif
1193
1194  # If the compiler supports it, put function and data symbols in their
1195  # own sections and GC the sections after linking.  This lets drivers
1196  # drop shared code unused by that specific driver (particularly
1197  # relevant for Vulkan drivers).
1198  if cc.has_link_argument('-Wl,--gc-sections')
1199    _trial_c += ['-ffunction-sections', '-fdata-sections']
1200    _trial_cpp += ['-ffunction-sections', '-fdata-sections']
1201  endif
1202
1203  c_args += cc.get_supported_arguments(_trial_c)
1204  cpp_args += cpp.get_supported_arguments(_trial_cpp)
1205
1206  no_override_init_args += cc.get_supported_arguments(
1207    ['-Wno-override-init', '-Wno-initializer-overrides']
1208  )
1209
1210  # Check for C and C++ arguments for MSVC compatibility. These are only used
1211  # in parts of the mesa code base that need to compile with MSVC, mainly
1212  # common code
1213  _trial_msvc = ['-Werror=pointer-arith', '-Werror=gnu-empty-initializer']
1214  c_msvc_compat_args += cc.get_supported_arguments(_trial_msvc)
1215  cpp_msvc_compat_args += cpp.get_supported_arguments(_trial_msvc)
1216endif
1217
1218# set linker arguments
1219if host_machine.system() == 'windows'
1220  if cc.get_id() == 'msvc'
1221    add_project_link_arguments(
1222      '/fixed:no',
1223      '/dynamicbase',
1224      '/nxcompat',
1225      language : ['c', 'cpp'],
1226    )
1227    if get_option('buildtype') != 'debug'
1228      add_project_link_arguments(
1229        '/incremental:no',
1230        language : ['c', 'cpp'],
1231      )
1232    endif
1233  else
1234    add_project_link_arguments(
1235      cc.get_supported_link_arguments(
1236        '-Wl,--nxcompat',
1237        '-Wl,--dynamicbase',
1238        '-static-libgcc',
1239        '-static-libstdc++',
1240      ),
1241      language : ['c'],
1242    )
1243    add_project_link_arguments(
1244      cpp.get_supported_link_arguments(
1245        '-Wl,--nxcompat',
1246        '-Wl,--dynamicbase',
1247        '-static-libgcc',
1248        '-static-libstdc++',
1249      ),
1250      language : ['cpp'],
1251    )
1252  endif
1253endif
1254
1255if host_machine.cpu_family().startswith('x86') and cc.get_id() != 'msvc'
1256  pre_args += '-DUSE_SSE41'
1257  with_sse41 = true
1258  sse41_args = ['-msse4.1']
1259
1260  if host_machine.cpu_family() == 'x86'
1261    if get_option('sse2')
1262      # These settings make generated GCC code match MSVC and follow
1263      # GCC advice on https://gcc.gnu.org/wiki/FloatingPointMath#x86note
1264      #
1265      # NOTE: We need to ensure stack is realigned given that we
1266      # produce shared objects, and have no control over the stack
1267      # alignment policy of the application. Therefore we need
1268      # -mstackrealign or -mincoming-stack-boundary=2.
1269      #
1270      # XXX: We could have SSE without -mstackrealign if we always used
1271      # __attribute__((force_align_arg_pointer)), but that's not
1272      # always the case.
1273      c_args += ['-msse2', '-mfpmath=sse', '-mstackrealign']
1274    else
1275      # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
1276      # that's not guaranteed
1277      sse41_args += '-mstackrealign'
1278    endif
1279  endif
1280else
1281  with_sse41 = false
1282  sse41_args = []
1283endif
1284
1285# Check for GCC style atomics
1286dep_atomic = null_dep
1287
1288if cc.compiles('''#include <stdint.h>
1289                  int main() {
1290                    struct {
1291                      uint64_t *v;
1292                    } x;
1293                    return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1294                           (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1295
1296                  }''',
1297               name : 'GCC atomic builtins')
1298  pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
1299
1300  # Not all atomic calls can be turned into lock-free instructions, in which
1301  # GCC will make calls into the libatomic library. Check whether we need to
1302  # link with -latomic.
1303  #
1304  # This can happen for 64-bit atomic operations on 32-bit architectures such
1305  # as ARM.
1306  if not cc.links('''#include <stdint.h>
1307                     int main() {
1308                       struct {
1309                         uint64_t *v;
1310                       } x;
1311                       return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) &
1312                              (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL);
1313                     }''',
1314                  name : 'GCC atomic builtins required -latomic')
1315    dep_atomic = cc.find_library('atomic')
1316  endif
1317endif
1318if not cc.links('''#include <stdint.h>
1319                   uint64_t v;
1320                   int main() {
1321                     return __sync_add_and_fetch(&v, (uint64_t)1);
1322                   }''',
1323                dependencies : dep_atomic,
1324                name : 'GCC 64bit atomics')
1325  pre_args += '-DMISSING_64BIT_ATOMICS'
1326endif
1327
1328dep_ws2_32 = cc.find_library('ws2_32', required : with_platform_windows)
1329
1330# TODO: shared/static? Is this even worth doing?
1331
1332with_asm_arch = ''
1333if host_machine.cpu_family() == 'x86'
1334  if system_has_kms_drm or host_machine.system() == 'gnu'
1335    with_asm_arch = 'x86'
1336    pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
1337                 '-DUSE_SSE_ASM']
1338
1339    if with_glx_read_only_text
1340      pre_args += ['-DGLX_X86_READONLY_TEXT']
1341    endif
1342  endif
1343elif host_machine.cpu_family() == 'x86_64'
1344  if system_has_kms_drm
1345    with_asm_arch = 'x86_64'
1346    pre_args += ['-DUSE_X86_64_ASM']
1347  endif
1348elif host_machine.cpu_family() == 'arm'
1349  if system_has_kms_drm
1350    with_asm_arch = 'arm'
1351    pre_args += ['-DUSE_ARM_ASM']
1352  endif
1353elif host_machine.cpu_family() == 'aarch64'
1354  if system_has_kms_drm
1355    with_asm_arch = 'aarch64'
1356    pre_args += ['-DUSE_AARCH64_ASM']
1357  endif
1358elif host_machine.cpu_family() == 'sparc64'
1359  if system_has_kms_drm
1360    with_asm_arch = 'sparc'
1361    pre_args += ['-DUSE_SPARC_ASM']
1362  endif
1363elif host_machine.cpu_family() == 'ppc64' and host_machine.endian() == 'little'
1364  if system_has_kms_drm
1365    with_asm_arch = 'ppc64le'
1366    pre_args += ['-DUSE_PPC64LE_ASM']
1367  endif
1368elif host_machine.cpu_family() == 'mips64' and host_machine.endian() == 'little'
1369  if system_has_kms_drm
1370    with_asm_arch = 'mips64el'
1371    pre_args += ['-DUSE_MIPS64EL_ASM']
1372  endif
1373endif
1374
1375# Check for standard headers and functions
1376if (cc.has_header_symbol('sys/sysmacros.h', 'major') and
1377  cc.has_header_symbol('sys/sysmacros.h', 'minor') and
1378  cc.has_header_symbol('sys/sysmacros.h', 'makedev'))
1379  pre_args += '-DMAJOR_IN_SYSMACROS'
1380endif
1381if (cc.has_header_symbol('sys/mkdev.h', 'major') and
1382  cc.has_header_symbol('sys/mkdev.h', 'minor') and
1383  cc.has_header_symbol('sys/mkdev.h', 'makedev'))
1384  pre_args += '-DMAJOR_IN_MKDEV'
1385endif
1386
1387if cc.check_header('sched.h')
1388  pre_args += '-DHAS_SCHED_H'
1389  if cc.has_function('sched_getaffinity')
1390    pre_args += '-DHAS_SCHED_GETAFFINITY'
1391  endif
1392endif
1393
1394if not ['linux'].contains(host_machine.system())
1395  # Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
1396  if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
1397    pre_args += '-DHAVE_SYS_SYSCTL_H'
1398  endif
1399endif
1400
1401foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'sys/shm.h', 'cet.h', 'pthread_np.h']
1402  if cc.check_header(h)
1403    pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
1404  endif
1405endforeach
1406
1407foreach f : ['strtof', 'mkostemp', 'timespec_get', 'memfd_create', 'random_r',
1408             'flock', 'strtok_r', 'getrandom', 'qsort_r', 'qsort_s']
1409  if cc.has_function(f)
1410    pre_args += '-DHAVE_@0@'.format(f.to_upper())
1411  endif
1412endforeach
1413
1414if cc.has_header_symbol('errno.h', 'program_invocation_name',
1415                        args : '-D_GNU_SOURCE')
1416   pre_args += '-DHAVE_PROGRAM_INVOCATION_NAME'
1417elif with_tools.contains('intel')
1418  error('Intel tools require the program_invocation_name variable')
1419endif
1420
1421# MinGW provides a __builtin_posix_memalign function, but not a posix_memalign.
1422# This means that this check will succeed, but then compilation will later
1423# fail. MSVC doesn't have this function at all, so only check for it on
1424# non-windows platforms.
1425if host_machine.system() != 'windows'
1426  if cc.has_function('posix_memalign')
1427    pre_args += '-DHAVE_POSIX_MEMALIGN'
1428  endif
1429endif
1430
1431if cc.has_member('struct dirent', 'd_type', prefix: '''#include <sys/types.h>
1432   #include <dirent.h>''')
1433   pre_args += '-DHAVE_DIRENT_D_TYPE'
1434endif
1435
1436# strtod locale support
1437if cc.links('''
1438    #define _GNU_SOURCE
1439    #include <stdlib.h>
1440    #include <locale.h>
1441    #ifdef HAVE_XLOCALE_H
1442    #include <xlocale.h>
1443    #endif
1444    int main() {
1445      locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
1446      const char *s = "1.0";
1447      char *end;
1448      double d = strtod_l(s, end, loc);
1449      float f = strtof_l(s, end, loc);
1450      freelocale(loc);
1451      return 0;
1452    }''',
1453    args : pre_args,
1454    name : 'strtod has locale support')
1455  pre_args += '-DHAVE_STRTOD_L'
1456endif
1457
1458# Check for some linker flags
1459ld_args_bsymbolic = []
1460if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
1461  ld_args_bsymbolic += '-Wl,-Bsymbolic'
1462endif
1463ld_args_gc_sections = []
1464if cc.links('static char unused() { return 5; } int main() { return 0; }',
1465            args : '-Wl,--gc-sections', name : 'gc-sections')
1466  ld_args_gc_sections += '-Wl,--gc-sections'
1467endif
1468with_ld_version_script = false
1469if cc.links('int main() { return 0; }',
1470            args : '-Wl,--version-script=@0@'.format(
1471              join_paths(meson.source_root(), 'build-support/conftest.map')),
1472            name : 'version-script')
1473  with_ld_version_script = true
1474endif
1475with_ld_dynamic_list = false
1476if cc.links('int main() { return 0; }',
1477            args : '-Wl,--dynamic-list=@0@'.format(
1478              join_paths(meson.source_root(), 'build-support/conftest.dyn')),
1479            name : 'dynamic-list')
1480  with_ld_dynamic_list = true
1481endif
1482
1483ld_args_build_id = cc.get_supported_link_arguments('-Wl,--build-id=sha1')
1484
1485# check for dl support
1486dep_dl = null_dep
1487if not cc.has_function('dlopen')
1488  dep_dl = cc.find_library('dl', required : host_machine.system() != 'windows')
1489endif
1490if cc.has_function('dladdr', dependencies : dep_dl)
1491  # This is really only required for megadrivers
1492  pre_args += '-DHAVE_DLADDR'
1493endif
1494
1495if cc.has_function('dl_iterate_phdr')
1496  pre_args += '-DHAVE_DL_ITERATE_PHDR'
1497elif with_intel_vk
1498  error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
1499endif
1500
1501# Determine whether or not the rt library is needed for time functions
1502if host_machine.system() == 'windows' or cc.has_function('clock_gettime')
1503  dep_clock = null_dep
1504else
1505  dep_clock = cc.find_library('rt')
1506endif
1507
1508dep_zlib = dependency('zlib', version : '>= 1.2.3',
1509                      fallback : ['zlib', 'zlib_dep'],
1510                      required : get_option('zlib'))
1511if dep_zlib.found()
1512  pre_args += '-DHAVE_ZLIB'
1513endif
1514
1515_zstd = get_option('zstd')
1516if _zstd == 'true'
1517  _zstd = 'enabled'
1518  warning('zstd option "true" deprecated, please use "enabled" instead.')
1519elif _zstd == 'false'
1520  _zstd = 'disabled'
1521  warning('zstd option "false" deprecated, please use "disabled" instead.')
1522endif
1523if _zstd != 'disabled'
1524  dep_zstd = dependency('libzstd', required : _zstd == 'enabled')
1525  if dep_zstd.found()
1526    pre_args += '-DHAVE_ZSTD'
1527  endif
1528else
1529  dep_zstd = null_dep
1530endif
1531
1532with_compression = dep_zlib.found() or dep_zstd.found()
1533if with_compression
1534  pre_args += '-DHAVE_COMPRESSION'
1535elif with_shader_cache
1536  error('Shader Cache requires compression')
1537endif
1538
1539dep_thread = dependency('threads')
1540if dep_thread.found() and host_machine.system() != 'windows'
1541  pre_args += '-DHAVE_PTHREAD'
1542  if host_machine.system() != 'netbsd' and cc.has_function(
1543      'pthread_setaffinity_np',
1544      dependencies : dep_thread,
1545      prefix : '#include <pthread.h>',
1546      args : '-D_GNU_SOURCE')
1547    pre_args += '-DHAVE_PTHREAD_SETAFFINITY'
1548  endif
1549endif
1550if host_machine.system() == 'darwin'
1551  dep_expat = meson.get_compiler('c').find_library('expat')
1552elif host_machine.system() != 'windows'
1553  dep_expat = dependency('expat', fallback : ['expat', 'expat_dep'],
1554                         required: not with_platform_android)
1555else
1556  dep_expat = null_dep
1557endif
1558# this only exists on linux so either this is linux and it will be found, or
1559# it's not linux and wont
1560dep_m = cc.find_library('m', required : false)
1561
1562if host_machine.system() == 'windows'
1563  dep_regex = meson.get_compiler('c').find_library('regex', required : false)
1564  if not dep_regex.found()
1565    dep_regex = declare_dependency(compile_args : ['-DNO_REGEX'])
1566  endif
1567else
1568  dep_regex = null_dep
1569endif
1570
1571if with_platform_haiku
1572  dep_network = cc.find_library('network')
1573endif
1574
1575# Check for libdrm. Various drivers have different libdrm version requirements,
1576# but we always want to use the same version for all libdrm modules. That means
1577# even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
1578# bar are both on use 2.4.3 for both of them
1579dep_libdrm_amdgpu = null_dep
1580dep_libdrm_radeon = null_dep
1581dep_libdrm_nouveau = null_dep
1582dep_libdrm_intel = null_dep
1583
1584_drm_amdgpu_ver = '2.4.110'
1585_drm_radeon_ver = '2.4.71'
1586_drm_nouveau_ver = '2.4.102'
1587_drm_intel_ver = '2.4.75'
1588_drm_ver = '2.4.109'
1589
1590_libdrm_checks = [
1591  ['intel', with_gallium_i915],
1592  ['amdgpu', (with_amd_vk and not with_platform_windows) or with_gallium_radeonsi],
1593  ['radeon', (with_gallium_radeonsi or with_gallium_r300 or with_gallium_r600)],
1594  ['nouveau', with_gallium_nouveau],
1595]
1596
1597# Loop over the enables versions and get the highest libdrm requirement for all
1598# active drivers.
1599_drm_blame = ''
1600foreach d : _libdrm_checks
1601  ver = get_variable('_drm_@0@_ver'.format(d[0]))
1602  if d[1] and ver.version_compare('>' + _drm_ver)
1603    _drm_ver = ver
1604    _drm_blame = d[0]
1605  endif
1606endforeach
1607if _drm_blame != ''
1608  message('libdrm @0@ needed because @1@ has the highest requirement'.format(_drm_ver, _drm_blame))
1609endif
1610
1611# Then get each libdrm module
1612foreach d : _libdrm_checks
1613  if d[1]
1614    set_variable(
1615      'dep_libdrm_' + d[0],
1616      dependency('libdrm_' + d[0], version : '>=' + _drm_ver)
1617    )
1618  endif
1619endforeach
1620
1621with_gallium_drisw_kms = false
1622dep_libdrm = dependency(
1623  'libdrm', version : '>=' + _drm_ver,
1624  # GNU/Hurd includes egl_dri2, without drm.
1625  required : (with_dri2 and host_machine.system() != 'gnu') or with_dri3
1626)
1627if dep_libdrm.found()
1628  pre_args += '-DHAVE_LIBDRM'
1629  if with_dri_platform == 'drm' and with_dri
1630    with_gallium_drisw_kms = true
1631  endif
1632endif
1633
1634dep_libudev = dependency('libudev', required : false)
1635if dep_libudev.found()
1636  pre_args += '-DHAVE_LIBUDEV'
1637endif
1638
1639llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit', 'core', 'executionengine', 'scalaropts', 'transformutils', 'instcombine']
1640llvm_optional_modules = ['coroutines']
1641if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
1642  llvm_modules += ['amdgpu', 'native', 'bitreader', 'ipo']
1643  if with_gallium_r600
1644    llvm_modules += 'asmparser'
1645  endif
1646endif
1647if with_gallium_opencl
1648  llvm_modules += [
1649    'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
1650    'lto', 'option', 'objcarcopts', 'profiledata'
1651  ]
1652  llvm_optional_modules += ['all-targets', 'frontendopenmp']
1653endif
1654if with_clc
1655  llvm_modules += ['coverage', 'target', 'linker', 'irreader', 'option', 'libdriver', 'lto']
1656endif
1657if with_tests or with_gallium_softpipe
1658  llvm_modules += 'native'
1659endif
1660
1661if with_amd_vk or with_gallium_radeonsi
1662  _llvm_version = '>= 11.0.0'
1663elif with_clc
1664  _llvm_version = '>= 10.0.0'
1665elif with_gallium_opencl
1666  _llvm_version = '>= 8.0.0'
1667else
1668  _llvm_version = '>= 3.9.0'
1669endif
1670
1671_shared_llvm = get_option('shared-llvm')
1672if _shared_llvm == 'true'
1673  _shared_llvm = 'enabled'
1674  warning('shared_llvm option "true" deprecated, please use "enabled" instead.')
1675elif _shared_llvm == 'false'
1676  _shared_llvm = 'disabled'
1677  warning('shared_llvm option "false" deprecated, please use "disabled" instead.')
1678endif
1679if _shared_llvm == 'auto'
1680  _shared_llvm = (host_machine.system() != 'windows')
1681else
1682  _shared_llvm = (_shared_llvm == 'enabled')
1683endif
1684_llvm = get_option('llvm')
1685if _llvm == 'true'
1686  _llvm = 'enabled'
1687  warning('llvm option "true" deprecated, please use "enabled" instead.')
1688elif _llvm == 'false'
1689  _llvm = 'disabled'
1690  warning('llvm option "false" deprecated, please use "disabled" instead.')
1691endif
1692
1693# the cmake method can only link statically, so don't attempt to use it if we
1694# want to link dynamically. Before 0.54.0 meson will try cmake even when shared
1695# linking is requested, so we need to force the config-tool method to be used
1696# in that case, but in 0.54.0 meson won't try the cmake method if shared
1697# linking is requested.
1698_llvm_method = 'auto'
1699if meson.version().version_compare('< 0.54.0') and _shared_llvm
1700  _llvm_method = 'config-tool'
1701endif
1702
1703dep_llvm = null_dep
1704with_llvm = false
1705draw_with_llvm = get_option('draw-use-llvm')
1706if _llvm != 'disabled'
1707  dep_llvm = dependency(
1708    'llvm',
1709    version : _llvm_version,
1710    modules : llvm_modules,
1711    optional_modules : llvm_optional_modules,
1712    required : (
1713      with_amd_vk or with_gallium_radeonsi or with_gallium_opencl or with_clc
1714      or _llvm == 'enabled'
1715    ),
1716    static : not _shared_llvm,
1717    method : _llvm_method,
1718    fallback : ['llvm', 'dep_llvm'],
1719    include_type : 'system',
1720  )
1721  with_llvm = dep_llvm.found()
1722endif
1723if with_llvm
1724  pre_args += '-DLLVM_AVAILABLE'
1725  pre_args += '-DMESA_LLVM_VERSION_STRING="@0@"'.format(dep_llvm.version())
1726  pre_args += '-DLLVM_IS_SHARED=@0@'.format(_shared_llvm.to_int())
1727
1728  if draw_with_llvm
1729    pre_args += '-DDRAW_LLVM_AVAILABLE'
1730  elif with_swrast_vk
1731    error('Lavapipe requires LLVM draw support.')
1732  endif
1733
1734  if cc.get_id() != 'msvc'
1735    # LLVM can be built without rtti, turning off rtti changes the ABI of C++
1736    # programs, so we need to build all C++ code in mesa without rtti as well to
1737    # ensure that linking works. Note that MSVC does handle mismatching RTTI
1738    # without issues, so only apply this for other compilers.
1739    if dep_llvm.type_name() == 'internal'
1740      _llvm_rtti = subproject('llvm').get_variable('has_rtti', true)
1741    else
1742      # The CMake finder will return 'ON', the llvm-config will return 'YES'
1743      _llvm_rtti = ['ON', 'YES'].contains(dep_llvm.get_variable(cmake : 'LLVM_ENABLE_RTTI', configtool: 'has-rtti'))
1744    endif
1745    if _rtti != _llvm_rtti
1746      if _llvm_rtti
1747        error('LLVM was built with RTTI, cannot build Mesa with RTTI disabled. Remove cpp_rtti disable switch or use LLVM built without LLVM_ENABLE_RTTI.')
1748      else
1749        error('LLVM was built without RTTI, so Mesa must also disable RTTI. Use an LLVM built with LLVM_ENABLE_RTTI or add cpp_rtti=false.')
1750      endif
1751    endif
1752  else
1753    # Suppress "/DELAYLOAD:ole32.dll/shell32.dll ignored" warnings that LLVM adds
1754    add_project_link_arguments(
1755      '/ignore:4199',
1756      language : ['c', 'cpp'],
1757    )
1758  endif
1759elif with_amd_vk and with_aco_tests
1760  error('ACO tests require LLVM, but LLVM is disabled.')
1761elif with_gallium_radeonsi or with_swrast_vk
1762  error('The following drivers require LLVM: RadeonSI, SWR, Lavapipe. One of these is enabled, but LLVM is disabled.')
1763elif with_gallium_opencl
1764  error('The OpenCL "Clover" state tracker requires LLVM, but LLVM is disabled.')
1765elif with_clc
1766  error('The CLC compiler requires LLVM, but LLVM is disabled.')
1767else
1768  draw_with_llvm = false
1769endif
1770
1771with_opencl_spirv = (_opencl != 'disabled' and get_option('opencl-spirv')) or with_clc
1772if with_opencl_spirv
1773  chosen_llvm_version_array = dep_llvm.version().split('.')
1774  chosen_llvm_version_major = chosen_llvm_version_array[0].to_int()
1775  chosen_llvm_version_minor = chosen_llvm_version_array[1].to_int()
1776
1777  # Require an SPIRV-LLVM-Translator version compatible with the chosen LLVM
1778  # one.
1779  _llvmspirvlib_version = [
1780    # This first version check is still needed as maybe LLVM 8.0 was picked but
1781    # we do not want to accept SPIRV-LLVM-Translator 8.0.0.1 as that version does
1782    # not have the required API and those are only available starting from
1783    # 8.0.1.3.
1784    '>= 8.0.1.3',
1785    '>= @0@.@1@'.format(chosen_llvm_version_major, chosen_llvm_version_minor),
1786    '< @0@.@1@'.format(chosen_llvm_version_major, chosen_llvm_version_minor + 1) ]
1787
1788  dep_spirv_tools = dependency('SPIRV-Tools', required : true, version : '>= 2018.0')
1789  # LLVMSPIRVLib is available at https://github.com/KhronosGroup/SPIRV-LLVM-Translator
1790  dep_llvmspirvlib = dependency('LLVMSPIRVLib', required : true, version : _llvmspirvlib_version)
1791else
1792  dep_spirv_tools = null_dep
1793  dep_llvmspirvlib = null_dep
1794endif
1795
1796dep_clang = null_dep
1797if with_clc
1798  llvm_libdir = dep_llvm.get_variable(cmake : 'LLVM_LIBRARY_DIR', configtool: 'libdir')
1799
1800  dep_clang = cpp.find_library('clang-cpp', dirs : llvm_libdir, required : false)
1801
1802  if not dep_clang.found()
1803    clang_modules = [
1804      'clangBasic', 'clangAST', 'clangCodeGen', 'clangLex',
1805      'clangDriver', 'clangFrontend', 'clangFrontendTool',
1806      'clangHandleCXX', 'clangHandleLLVM', 'clangSerialization',
1807      'clangSema', 'clangParse', 'clangEdit', 'clangAnalysis'
1808    ]
1809
1810    dep_clang = []
1811    foreach m : clang_modules
1812      dep_clang += cpp.find_library(m, dirs : llvm_libdir, required : true)
1813    endforeach
1814  endif
1815endif
1816
1817# Be explicit about only using this lib on Windows, to avoid picking
1818# up random libs with the generic name 'libversion'
1819dep_version = null_dep
1820if with_opencl_spirv and host_machine.system() == 'windows'
1821  dep_version = cpp.find_library('version')
1822endif
1823
1824with_opencl_native = _opencl != 'disabled' and get_option('opencl-native')
1825
1826if (with_amd_vk or with_gallium_radeonsi or
1827    (with_gallium_opencl and with_opencl_native) or
1828    (with_gallium_r600 and with_llvm))
1829  if with_platform_windows
1830    dep_elf = dependency('libelf', required : false, fallback : ['libelf', 'libelf_dep'])
1831  else
1832    dep_elf = dependency('libelf', required : false)
1833  endif
1834  if not dep_elf.found()
1835    dep_elf = cc.find_library('elf')
1836  endif
1837else
1838  dep_elf = null_dep
1839endif
1840
1841dep_glvnd = null_dep
1842if with_glvnd
1843  dep_glvnd = dependency('libglvnd', version : '>= 1.3.2')
1844  pre_args += '-DUSE_LIBGLVND=1'
1845endif
1846
1847_valgrind = get_option('valgrind')
1848if _valgrind == 'true'
1849  _valgrind = 'enabled'
1850  warning('valgrind option "true" deprecated, please use "enabled" instead.')
1851elif _valgrind == 'false'
1852  _valgrind = 'disabled'
1853  warning('valgrind option "false" deprecated, please use "disabled" instead.')
1854endif
1855if _valgrind != 'disabled'
1856  dep_valgrind = dependency('valgrind', required : _valgrind == 'enabled')
1857  if dep_valgrind.found()
1858    pre_args += '-DHAVE_VALGRIND'
1859  endif
1860else
1861  dep_valgrind = null_dep
1862endif
1863
1864# AddressSanitizer's leak reports need all the symbols to be present at exit to
1865# decode well, which runs afoul of our dlopen()/dlclose()ing of the DRI drivers.
1866# Set a flag so we can skip the dlclose for asan builds.
1867if ['address', 'address,undefined'].contains(get_option('b_sanitize'))
1868  asan_c_args = ['-DBUILT_WITH_ASAN=1']
1869else
1870  asan_c_args = ['-DBUILT_WITH_ASAN=0']
1871endif
1872
1873yacc_is_bison = true
1874
1875if build_machine.system() == 'windows'
1876  # Prefer the winflexbison versions, they're much easier to install and have
1877  # better windows support.
1878
1879  prog_flex = find_program('win_flex', required : false)
1880  if prog_flex.found()
1881    # windows compatibility (uses <io.h> instead of <unistd.h> and _isatty,
1882    # _fileno functions)
1883    prog_flex = [prog_flex, '--wincompat']
1884    if get_option('c_std') == 'c99'
1885      prog_flex += '-D__STDC_VERSION__=199901'
1886    endif
1887  else
1888    prog_flex = [find_program('flex', 'lex', required : with_any_opengl)]
1889  endif
1890  # Force flex to use const keyword in prototypes, as relies on __cplusplus or
1891  # __STDC__ macro to determine whether it's safe to use const keyword, but
1892  # MSVC only defines __STDC_VERSION__ for C11/C17.
1893  prog_flex += '-DYY_USE_CONST='
1894
1895  prog_flex_cpp = prog_flex
1896  if get_option('c_std') != 'c99'
1897    # Convince win_flex to use <inttypes.h> for C++ files
1898    prog_flex_cpp += '-D__STDC_VERSION__=199901'
1899  endif
1900
1901  prog_bison = find_program('win_bison', required : false)
1902  if not prog_bison.found()
1903    prog_bison = find_program('bison', 'yacc', required : with_any_opengl)
1904  endif
1905else
1906  prog_bison = find_program('bison', required : false)
1907
1908  if not prog_bison.found()
1909    prog_bison = find_program('byacc', required : with_any_opengl)
1910    yacc_is_bison = false
1911  endif
1912
1913  # Disable deprecated keyword warnings, since we have to use them for
1914  # old-bison compat.  See discussion in
1915  # https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2161
1916  if find_program('bison', required : false, version : '> 2.3').found()
1917    prog_bison = [prog_bison, '-Wno-deprecated']
1918  endif
1919
1920  prog_flex = find_program('flex', required : with_any_opengl)
1921  prog_flex_cpp = prog_flex
1922endif
1923
1924dep_selinux = null_dep
1925if get_option('selinux')
1926  if get_option('execmem') != true
1927    warning('execmem option is disabled, selinux will not be able to use execmem.')
1928  endif
1929  dep_selinux = dependency('libselinux')
1930  pre_args += '-DMESA_SELINUX'
1931endif
1932
1933if get_option('execmem')
1934  pre_args += '-DMESA_EXECMEM'
1935endif
1936
1937_libunwind = get_option('libunwind')
1938if _libunwind == 'true'
1939  _libunwind = 'enabled'
1940  warning('libunwind option "true" deprecated, please use "enabled" instead.')
1941elif _libunwind == 'false'
1942  _libunwind = 'disabled'
1943  warning('libunwind option "false" deprecated, please use "disabled" instead.')
1944endif
1945if _libunwind != 'disabled' and not with_platform_android
1946  if host_machine.system() == 'darwin'
1947    dep_unwind = meson.get_compiler('c').find_library('System')
1948  else
1949    dep_unwind = dependency('libunwind', required : _libunwind == 'enabled')
1950  endif
1951  if dep_unwind.found()
1952    pre_args += '-DHAVE_LIBUNWIND'
1953  endif
1954else
1955  dep_unwind = null_dep
1956endif
1957
1958if with_osmesa
1959  if not with_gallium_softpipe
1960    error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1961  endif
1962  if host_machine.system() == 'windows'
1963    osmesa_lib_name = 'osmesa'
1964  else
1965    osmesa_lib_name = 'OSMesa'
1966  endif
1967  osmesa_bits = get_option('osmesa-bits')
1968  if osmesa_bits != '8'
1969    if with_dri or with_glx != 'disabled'
1970      error('OSMesa bits must be 8 if building glx or dri based drivers')
1971    endif
1972    osmesa_lib_name = osmesa_lib_name + osmesa_bits
1973    pre_args += [
1974      '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1975    ]
1976  endif
1977endif
1978
1979# TODO: symbol mangling
1980
1981if with_platform_wayland
1982  dep_wl_scanner = dependency('wayland-scanner', native: true)
1983  prog_wl_scanner = find_program(dep_wl_scanner.get_pkgconfig_variable('wayland_scanner'))
1984  if dep_wl_scanner.version().version_compare('>= 1.15')
1985    wl_scanner_arg = 'private-code'
1986  else
1987    wl_scanner_arg = 'code'
1988  endif
1989  dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.24')
1990  dep_wayland_client = dependency('wayland-client', version : '>=1.18')
1991  dep_wayland_server = dependency('wayland-server', version : '>=1.18')
1992  if with_egl
1993    dep_wayland_egl = dependency('wayland-egl-backend', version : '>= 3')
1994    dep_wayland_egl_headers = dep_wayland_egl.partial_dependency(compile_args : true)
1995  endif
1996  wayland_dmabuf_xml = join_paths(
1997    dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1998    'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1999  )
2000  pre_args += '-DWL_HIDE_DEPRECATED'
2001endif
2002
2003dep_x11 = null_dep
2004dep_xext = null_dep
2005dep_xfixes = null_dep
2006dep_x11_xcb = null_dep
2007dep_xcb = null_dep
2008dep_xcb_glx = null_dep
2009dep_xcb_dri2 = null_dep
2010dep_xcb_dri3 = null_dep
2011dep_dri2proto = null_dep
2012dep_glproto = null_dep
2013dep_xxf86vm = null_dep
2014dep_xcb_dri3 = null_dep
2015dep_xcb_present = null_dep
2016dep_xcb_sync = null_dep
2017dep_xcb_xfixes = null_dep
2018dep_xshmfence = null_dep
2019dep_xcb_xrandr = null_dep
2020dep_xcb_shm = null_dep
2021dep_xlib_xrandr = null_dep
2022dep_openmp = null_dep
2023
2024# Even if we find OpenMP, Gitlab CI fails to link with gcc/i386 and clang/anyarch.
2025if host_machine.cpu_family() == 'x86_64' and cc.get_id() == 'gcc'
2026  dep_openmp = dependency('openmp', required : false)
2027  if dep_openmp.found()
2028    pre_args += ['-DHAVE_OPENMP']
2029  endif
2030endif
2031
2032if with_platform_x11
2033  if with_glx == 'xlib' or with_glx == 'gallium-xlib'
2034    dep_x11 = dependency('x11')
2035    dep_xext = dependency('xext')
2036    dep_xcb = dependency('xcb')
2037  elif with_glx == 'dri'
2038    dep_x11 = dependency('x11')
2039    dep_xext = dependency('xext')
2040    dep_xfixes = dependency('xfixes', version : '>= 2.0')
2041    dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
2042    dep_xcb_shm = dependency('xcb-shm')
2043  endif
2044  if (with_any_vk or with_glx == 'dri' or with_egl or
2045       (with_gallium_vdpau or with_gallium_xvmc or with_gallium_va or
2046        with_gallium_omx != 'disabled'))
2047    dep_xcb = dependency('xcb')
2048    dep_x11_xcb = dependency('x11-xcb')
2049    if with_dri_platform == 'drm' and not dep_libdrm.found()
2050      error('libdrm required for gallium video statetrackers when using x11')
2051    endif
2052  endif
2053  if with_any_vk or with_egl or (with_glx == 'dri' and with_dri_platform == 'drm')
2054    dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
2055
2056    if with_dri3
2057      pre_args += '-DHAVE_DRI3'
2058      dep_xcb_dri3 = dependency('xcb-dri3')
2059      dep_xcb_present = dependency('xcb-present')
2060      # until xcb-dri3 has been around long enough to make a hard-dependency:
2061      if (dep_xcb_dri3.version().version_compare('>= 1.13') and
2062          dep_xcb_present.version().version_compare('>= 1.13'))
2063        pre_args += '-DHAVE_DRI3_MODIFIERS'
2064      endif
2065      dep_xcb_shm = dependency('xcb-shm')
2066      dep_xcb_sync = dependency('xcb-sync')
2067      dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
2068    endif
2069  endif
2070  if with_glx == 'dri' or with_glx == 'gallium-xlib'
2071    dep_glproto = dependency('glproto', version : '>= 1.4.14')
2072  endif
2073  if with_glx == 'dri'
2074    if with_dri_platform == 'drm'
2075      dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
2076      if with_glx_direct
2077        dep_xxf86vm = dependency('xxf86vm')
2078      endif
2079    endif
2080  endif
2081  if (with_egl or
2082      with_dri3 or (
2083      with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
2084      with_gallium_omx != 'disabled'))
2085    dep_xcb_xfixes = dependency('xcb-xfixes')
2086  endif
2087  if with_xlib_lease or with_any_vk
2088    dep_xcb_xrandr = dependency('xcb-randr')
2089  endif
2090  if with_xlib_lease
2091    dep_xlib_xrandr = dependency('xrandr', version : '>= 1.3')
2092  endif
2093endif
2094
2095if get_option('gallium-extra-hud')
2096  pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
2097endif
2098
2099_sensors = get_option('lmsensors')
2100if _sensors == 'true'
2101  _sensors = 'enabled'
2102  warning('lmsensors option "true" deprecated, please use "enabled" instead.')
2103elif _sensors == 'false'
2104  _sensors = 'disabled'
2105  warning('lmsensors option "false" deprecated, please use "disabled" instead.')
2106endif
2107if _sensors != 'disabled'
2108  dep_lmsensors = cc.find_library('sensors', required : _sensors == 'enabled')
2109  if dep_lmsensors.found()
2110    pre_args += '-DHAVE_LIBSENSORS=1'
2111  endif
2112else
2113  dep_lmsensors = null_dep
2114endif
2115
2116_shader_replacement = get_option('custom-shader-replacement')
2117if _shader_replacement == ''
2118else
2119  pre_args += '-DCUSTOM_SHADER_REPLACEMENT'
2120endif
2121
2122with_perfetto = get_option('perfetto')
2123with_datasources = get_option('datasources')
2124with_any_datasource = with_datasources.length() != 0
2125if with_perfetto
2126  dep_perfetto = dependency('perfetto', fallback: ['perfetto', 'dep_perfetto'])
2127  pre_args += '-DHAVE_PERFETTO'
2128endif
2129
2130add_project_arguments(pre_args, language : ['c', 'cpp'])
2131add_project_arguments(c_args,   language : ['c'])
2132add_project_arguments(cpp_args, language : ['cpp'])
2133
2134gl_priv_reqs = []
2135
2136if with_glx == 'xlib' or with_glx == 'gallium-xlib'
2137  gl_priv_reqs += ['x11', 'xext', 'xcb']
2138elif with_glx == 'dri'
2139  gl_priv_reqs += [
2140    'x11', 'xext', 'xfixes', 'x11-xcb', 'xcb',
2141    'xcb-glx >= 1.8.1']
2142  if with_dri_platform == 'drm'
2143    gl_priv_reqs += 'xcb-dri2 >= 1.8'
2144    if with_glx_direct
2145      gl_priv_reqs += 'xxf86vm'
2146    endif
2147  endif
2148endif
2149if dep_libdrm.found()
2150  gl_priv_reqs += 'libdrm >= 2.4.75'
2151endif
2152
2153gl_priv_libs = []
2154if dep_thread.found()
2155  gl_priv_libs += ['-lpthread', '-pthread']
2156endif
2157if dep_m.found()
2158  gl_priv_libs += '-lm'
2159endif
2160if dep_dl.found()
2161  gl_priv_libs += '-ldl'
2162endif
2163
2164# FIXME: autotools lists this as incomplete
2165gbm_priv_libs = []
2166if dep_dl.found()
2167  gbm_priv_libs += '-ldl'
2168endif
2169
2170pkg = import('pkgconfig')
2171
2172if host_machine.system() == 'windows'
2173  prog_dumpbin = find_program('dumpbin', required : false)
2174  with_symbols_check = prog_dumpbin.found() and with_tests
2175  if with_symbols_check
2176    symbols_check_args = ['--dumpbin', prog_dumpbin.path()]
2177  endif
2178else
2179  prog_nm = find_program('nm')
2180  with_symbols_check = with_tests
2181  symbols_check_args = ['--nm', prog_nm.path()]
2182endif
2183
2184# This quirk needs to be applied to sources with functions defined in assembly
2185# as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391
2186gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
2187
2188devenv = environment()
2189
2190subdir('include')
2191subdir('bin')
2192subdir('src')
2193
2194if meson.version().version_compare('>= 0.58')
2195  meson.add_devenv(devenv)
2196endif
2197
2198lines = ['',
2199  'prefix:          ' + get_option('prefix'),
2200  'libdir:          ' + get_option('libdir'),
2201  'includedir:      ' + get_option('includedir'),
2202  '',
2203  'OpenGL:          @0@ (ES1: @1@ ES2: @2@)'.format(with_opengl ? 'yes' : 'no',
2204                                                    with_gles1 ? 'yes' : 'no',
2205                                                    with_gles2 ? 'yes' : 'no'),
2206]
2207
2208if with_osmesa
2209  lines += ''
2210  lines += 'OSMesa:          lib' + osmesa_lib_name
2211else
2212  lines += 'OSMesa:          no'
2213endif
2214
2215if with_dri
2216  lines += ''
2217  lines += 'DRI platform:    ' + with_dri_platform
2218  if dri_drivers.length() != 0 and dri_drivers != ['']
2219    lines += 'DRI drivers:     ' + ' '.join(dri_drivers)
2220  else
2221    lines += 'DRI drivers:     no'
2222  endif
2223  lines += 'DRI driver dir:  ' + dri_drivers_path
2224endif
2225
2226if with_glx != 'disabled'
2227  lines += ''
2228  if with_glx == 'dri'
2229    lines += 'GLX:             DRI-based'
2230  elif with_glx == 'xlib'
2231    lines += 'GLX:             Xlib-based'
2232  else
2233    lines += 'GLX:             ' + with_glx
2234  endif
2235endif
2236
2237lines += ''
2238lines += 'EGL:             ' + (with_egl ? 'yes' : 'no')
2239if with_egl
2240  egl_drivers = []
2241  if with_dri
2242    egl_drivers += 'builtin:egl_dri2'
2243  endif
2244  if with_dri3
2245    egl_drivers += 'builtin:egl_dri3'
2246  endif
2247  if with_platform_windows
2248    egl_drivers += 'builtin:wgl'
2249  endif
2250  lines += 'EGL drivers:     ' + ' '.join(egl_drivers)
2251endif
2252if with_egl or with_any_vk
2253  lines += 'EGL/Vulkan/VL platforms:   ' + ' '.join(_platforms)
2254endif
2255lines += 'GBM:             ' + (with_gbm ? 'yes' : 'no')
2256if with_gbm
2257  lines += 'GBM backends path: ' + gbm_backends_path
2258endif
2259
2260lines += ''
2261if with_any_vk
2262  lines += 'Vulkan drivers:  ' + ' '.join(_vulkan_drivers)
2263  lines += 'Vulkan ICD dir:  ' + with_vulkan_icd_dir
2264  if with_any_vulkan_layers
2265    lines += 'Vulkan layers:   ' + ' '.join(get_option('vulkan-layers'))
2266  endif
2267else
2268  lines += 'Vulkan drivers:  no'
2269endif
2270
2271lines += ''
2272if with_llvm
2273  lines += 'llvm:            yes'
2274  lines += 'llvm-version:    ' + dep_llvm.version()
2275else
2276  lines += 'llvm:            no'
2277endif
2278
2279lines += ''
2280if with_gallium
2281  lines += 'Gallium drivers: ' + ' '.join(gallium_drivers)
2282  gallium_st = ['mesa']
2283  if with_gallium_xa
2284    gallium_st += 'xa'
2285  endif
2286  if with_gallium_xvmc
2287    gallium_st += 'xvmc'
2288  endif
2289  if with_gallium_vdpau
2290    gallium_st += 'vdpau'
2291  endif
2292  if with_gallium_omx != 'disabled'
2293    gallium_st += 'omx' + with_gallium_omx
2294  endif
2295  if with_gallium_va
2296    gallium_st += 'va'
2297  endif
2298  if with_gallium_st_nine
2299    gallium_st += 'nine'
2300  endif
2301  if with_gallium_opencl
2302    gallium_st += 'clover'
2303  endif
2304  lines += 'Gallium st:      ' + ' '.join(gallium_st)
2305else
2306  lines += 'Gallium:         no'
2307endif
2308
2309lines += 'HUD lmsensors:   ' + (dep_lmsensors.found() ? 'yes' : 'no')
2310
2311lines += ''
2312lines += 'Shared-glapi:    ' + (with_shared_glapi ? 'yes' : 'no')
2313
2314lines += ''
2315lines += 'Perfetto:        ' + (with_perfetto ? 'yes' : 'no')
2316if with_any_datasource
2317  lines += 'Perfetto ds:     ' + ' '.join(with_datasources)
2318endif
2319
2320
2321indent = '        '
2322summary = indent + ('\n' + indent).join(lines)
2323message('Configuration summary:\n@0@\n'.format(summary))
2324