# the purpose of the easyconfig is to build a Mesa for software rendering,
# not hardware rendering. This means you want at least SSE4.2. We build:
# - llvmpipe: the high-performance Gallium LLVM driver
# - swr: Intel's OpenSWR
# it will try to use the llvmpipe by default. It you want swr, do:
# GALLIUM_DRIVER=swr

easyblock = 'ConfigureMake'

name = 'Mesa'
version = '17.0.2'

homepage = 'http://www.mesa3d.org/'
description = """Mesa is an open-source implementation of the OpenGL specification -
 a system for rendering interactive 3D graphics."""

toolchain = {'name': 'intel', 'version': '2018'}
# swr detects and builds parts specific for AVX and AVX2. If we use
# -xHost, this always gets overwritten and will fail.
toolchainopts = {'optarch': False}

sources = [SOURCELOWER_TAR_XZ]
source_urls = [
    'https://mesa.freedesktop.org/archive/',
    'https://mesa.freedesktop.org/archive/%(version)s',
    'ftp://ftp.freedesktop.org/pub/mesa/%(version)s',
    'ftp://ftp.freedesktop.org/pub/mesa/older-versions/%(version_major)s.x/%(version)s',
]
patches = ['Mesa-%(version)s_fix-strip-llvm-flags.patch']

builddependencies = [
    ('flex', '2.6.4'),
    ('Bison', '3.0.4'),
    ('Autotools', '20170619'),
    ('pkg-config', '0.29.2'),
    ('Mako', '1.0.6'),
    ('libxml2', '2.9.4'),
]

dependencies = [
    ('zlib', '1.2.11'),
    ('nettle', '3.3'),
    ('libdrm', '2.4.76'),
    ('LLVM', '4.0.0'),
    ('X11', '20170805'),
]

# GLU is not part anymore of Mesa package!
configopts = " --disable-osmesa --enable-gallium-osmesa --enable-gallium-llvm --enable-glx --disable-dri"
configopts += " --disable-gbm --disable-driglx-direct --with-gallium-drivers='swrast,swr' --disable-egl"
configopts += " --with-osmesa-bits=32 --enable-texture-float --enable-llvm-shared-libs "

buildopts = 'V=1'

sanity_check_paths = {
    'files': ['lib/libGL.%s' % SHLIB_EXT, 'lib/libOSMesa.%s' % SHLIB_EXT,
              'lib/libGLESv1_CM.%s' % SHLIB_EXT, 'lib/libGLESv2.%s' % SHLIB_EXT,
              'include/GL/glext.h', 'include/GL/gl_mangle.h',
              'include/GL/glx.h', 'include/GL/osmesa.h',
              'include/GL/gl.h', 'include/GL/glxext.h',
              'include/GL/glx_mangle.h', 'include/GLES/gl.h',
              'include/GLES2/gl2.h', 'include/GLES3/gl3.h'],
    'dirs': []
}

moduleclass = 'vis'