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# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack import *
import sys
class Mesa(AutotoolsPackage):
"""Mesa is an open-source implementation of the OpenGL specification
- a system for rendering interactive 3D graphics."""
homepage = "http://www.mesa3d.org"
# Note that we always want to build from the git repo instead of a
# tarball since the tarball has pre-generated files for certain versions
# of LLVM while the git repo doesn't so it can adapt at build time to
# whatever version of LLVM you're using.
git = "https://gitlab.freedesktop.org/mesa/mesa.git"
version('18.3.6', tag='mesa-18.3.6', preferred=True)
depends_on('autoconf', type='build')
depends_on('automake', type='build')
depends_on('libtool', type='build')
depends_on('m4', type='build')
depends_on('pkgconfig', type='build')
depends_on('binutils', when=(sys.platform != 'darwin'), type='build')
depends_on('bison', type='build')
depends_on('flex', type='build')
depends_on('gettext', type='build')
depends_on('pkgconfig', type='build')
depends_on('python', type='build')
depends_on('py-mako@0.8.0:', type='build')
depends_on('libxml2')
depends_on('zlib')
depends_on('expat')
# Internal options
variant('llvm', default=True, description="Enable LLVM.")
variant('swr', values=any_combination_of('avx', 'avx2', 'knl', 'skx'),
description="Enable the SWR driver.")
# conflicts('~llvm', when='~swr=none')
# Front ends
variant('osmesa', default=True, description="Enable the OSMesa frontend.")
is_linux = sys.platform.startswith('linux')
variant('glx', default=is_linux, description="Enable the GLX frontend.")
# TODO: effectively deal with EGL. The implications of this have not been
# worked through yet
# variant('egl', default=False, description="Enable the EGL frontend.")
# TODO: Effectively deal with hardware drivers
# The implication of this is enabling DRI, among other things, and
# needing to check which llvm targets were built (ptx or amdgpu, etc.)
# Back ends
variant('opengl', default=True, description="Enable full OpenGL support.")
variant('opengles', default=False, description="Enable OpenGL ES support.")
# Provides
provides('gl@4.5', when='+opengl')
provides('glx@1.4', when='+glx')
# provides('egl@1.5', when='+egl')
# Variant dependencies
depends_on('llvm@6:', when='+llvm')
depends_on('libx11', when='+glx')
depends_on('libxcb', when='+glx')
depends_on('libxext', when='+glx')
depends_on('glproto@1.4.14:', when='+glx', type='build')
# Prevent an unnecessary xcb-dri dependency
patch('autotools-x11-nodri.patch')
def autoreconf(self, spec, prefix):
which('autoreconf')('--force', '--verbose', '--install')
def configure_args(self):
spec = self.spec
args = [
'--enable-shared',
'--disable-static',
'--disable-libglvnd',
'--disable-nine',
'--disable-omx-bellagio',
'--disable-omx-tizonia',
'--disable-opencl',
'--disable-opencl-icd',
'--disable-va',
'--disable-vdpau',
'--disable-xa',
'--disable-xvmc',
'--disable-osmesa',
'--with-vulkan-drivers=']
args_platforms = []
args_gallium_drivers = ['swrast']
args_dri_drivers = []
if spec.target.family == 'arm':
args.append('--disable-libunwind')
num_frontends = 0
if '+osmesa' in spec:
num_frontends += 1
args.append('--enable-gallium-osmesa')
else:
args.append('--disable-gallium-osmesa')
if '+glx' in spec:
num_frontends += 1
if '+egl' in spec:
args.append('--enable-glx=dri')
else:
args.append('--enable-glx=gallium-xlib')
args_platforms.append('x11')
else:
args.append('--disable-glx')
if '+egl' in spec:
num_frontends += 1
args.extend(['--enable-egl', '--enable-gbm', '--enable-dri'])
args_platforms.append('surfaceless')
else:
args.extend(['--disable-egl', '--disable-gbm', '--disable-dri'])
if '+opengl' in spec:
args.append('--enable-opengl')
else:
args.append('--disable-opengl')
if '+opengles' in spec:
args.extend(['--enable-gles1', '--enable-gles2'])
else:
args.extend(['--disable-gles1', '--disable-gles2'])
if num_frontends > 1:
args.append('--enable-shared-glapi')
else:
args.append('--disable-shared-glapi')
if '+llvm' in spec:
args.append('--enable-llvm')
args.append('--with-llvm-prefix=%s' % spec['llvm'].prefix)
if '+link_dylib' in spec['llvm']:
args.append('--enable-llvm-shared-libs')
else:
args.append('--disable-llvm-shared-libs')
else:
args.append('--disable-llvm')
args_swr_arches = []
if 'swr=avx' in spec:
args_swr_arches.append('avx')
if 'swr=avx2' in spec:
args_swr_arches.append('avx2')
if 'swr=knl' in spec:
args_swr_arches.append('knl')
if 'swr=skx' in spec:
args_swr_arches.append('skx')
if args_swr_arches:
if '+llvm' not in spec:
raise SpecError('Variant swr requires +llvm')
args_gallium_drivers.append('swr')
args.append('--with-swr-archs=' + ','.join(args_swr_arches))
# Add the remaining list args
args.append('--with-platforms=' + ','.join(args_platforms))
args.append('--with-gallium-drivers=' + ','.join(args_gallium_drivers))
args.append('--with-dri-drivers=' + ','.join(args_dri_drivers))
return args
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