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# Maintainer: Alex Hirzel <alex at hirzel period us>
pkgname=mitsuba2-git
pkgver=2.2.1.r43.g62863cb3
pkgrel=1
pkgdesc="A Retargetable Forward and Inverse Renderer"
arch=('x86_64')
url="https://www.mitsuba-renderer.org/"
license=('custom')
groups=()
depends=('libpng' 'libjpeg-turbo' 'libc++' 'pybind11' 'pugixml' 'cuda')
makedepends=('clang' 'git' 'cmake' 'ninja' 'patchelf' 'python' 'python-sphinx' 'python-guzzle-sphinx-theme' 'python-sphinxcontrib-bibtex' 'jq')
checkdepends=('python-pytest' 'python-pytest-xdist' 'python-numpy')
install=
source=('swap_pybind.patch'
'swap_pugixml.patch'
'swap_pybind_enoki.patch'
'python_collections.patch'
'test_scene.xml'
'git+https://github.com/mitsuba-renderer/mitsuba2.git'
'git+https://github.com/wjakob/tbb.git'
'git+https://github.com/mitsuba-renderer/asmjit.git'
'git+https://github.com/mitsuba-renderer/enoki.git'
'git+https://github.com/mitsuba-renderer/nanogui.git'
'git+https://github.com/mitsuba-renderer/tinyformat.git'
'git+https://github.com/mitsuba-renderer/mitsuba-data.git'
'git+https://github.com/mitsuba-renderer/openexr.git')
md5sums=('e40fe4bf313d60b1eb7c3da60fb6d434'
'617bd32eecbebd8c7036f738b8275e5f'
'eee8327568bbe7e0fa0a8d873eb2dea0'
'fcd771afe770b24492938482d6facfed'
'1e1daddd0a6431bb524402eedc8d51c7'
'SKIP'
'SKIP'
'SKIP'
'SKIP'
'SKIP'
'SKIP'
'SKIP'
'SKIP')
pkgver() {
git -C "$srcdir/${pkgname%-git}" describe --long --tags --always | sed -r 's/^v//;s/([^-]*-g)/r\1/;s/-/./g'
}
prepare() {
cd "$srcdir/${pkgname%-git}"
# submodules, some of which need to be compiled with the same compiler as
# mitsuba itself so that ABIs line up
git config submodule.ext/asmjit.url $srcdir/asmjit
git config submodule.ext/enoki.url $srcdir/enoki
git config submodule.ext/nanogui.url $srcdir/nanogui # provides bin2c
git config submodule.ext/tbb.url $srcdir/tbb
git config submodule.ext/tinyformat.url $srcdir/tinyformat
git config submodule.ext/openexr.url $srcdir/openexr
git config submodule.resources/data.url $srcdir/mitsuba-data
git -c protocol.file.allow=always submodule update --init ext/asmjit ext/enoki ext/nanogui ext/tbb ext/tinyformat ext/openexr resources/data
# system versions of these modules are used
rmdir ext/zlib ext/libpng ext/libjpeg
# patch the build system to use system versions
rmdir ext/pugixml ext/pybind11
git apply -v $srcdir/swap_pybind.patch
git apply -v $srcdir/swap_pugixml.patch
git -C ext/enoki apply -v $srcdir/swap_pybind_enoki.patch
# fix Python documentation
git apply -v $srcdir/python_collections.patch
# not used with the current build options
rmdir ext/embree
# generate the mitsuba.conf file with only one renderer (RGB)
# NOTE: change this if you want to build something else
# NOTE: scalar_rgb must be in the "enabled" list at all times
grep -v '#' < "$srcdir/${pkgname%-git}"/resources/mitsuba.conf.template \
| jq '.["enabled"] = [
"scalar_mono", "scalar_rgb", "scalar_spectral",
"scalar_mono_polarized", "scalar_rgb_polarized", "scalar_spectral_polarized",
"scalar_mono_double", "scalar_rgb_double", "scalar_spectral_double",
"scalar_mono_polarized_double", "scalar_rgb_polarized_double", "scalar_spectral_polarized_double",
"packet_mono", "packet_rgb", "packet_spectral",
"packet_mono_double", "packet_rgb_double", "packet_spectral_double",
"gpu_mono", "gpu_rgb", "gpu_spectral",
"gpu_autodiff_mono", "gpu_autodiff_rgb", "gpu_autodiff_spectral"
]' \
| jq '.["default"] = "scalar_rgb"' \
> "$srcdir/${pkgname%-git}"/mitsuba.conf
}
build() {
cmake -S "$srcdir/${pkgname%-git}" \
-B "$srcdir/build" -G Ninja \
-DCMAKE_C_COMPILER=clang \
-DCMAKE_CXX_COMPILER=clang++ \
-DCMAKE_MODULE_PATH:PATH="$(pybind11-config --cmakedir)" \
-DMTS_ENABLE_PYTHON:BOOL=ON \
-DMTS_ENABLE_GUI:BOOL=OFF \
-DMTS_ENABLE_EMBREE:BOOL=OFF \
-DCMAKE_INSTALL_PREFIX:PATH="$pkgdir"
ninja -C "$srcdir/build" ${MAKEFLAGS:--j1}
ninja -C "$srcdir/build" mkdoc
}
check() {
$srcdir/build/dist/mitsuba $srcdir/test_scene.xml
}
package() {
cd "$srcdir/${pkgname%-git}"
install -Dm644 LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
ninja -C "$srcdir/build" ${MAKEFLAGS:--j1} install
cd "$srcdir/build"
# adapt rpath to where libraries will be installed (so they do not conflict
# with other installed libraries)
patchelf --remove-rpath dist/mitsuba dist/python/mitsuba/*.so dist/libIlmImf.so dist/libIlmThread.so dist/libImath.so
patchelf --set-rpath '/usr/lib/mitsuba2' dist/mitsuba dist/python/mitsuba/*.so
install -Dm755 dist/mitsuba "$pkgdir/usr/bin/mitsuba2"
install -Dm644 dist/*.so -t "$pkgdir/usr/lib/mitsuba2"
install -Dm644 dist/plugins/*.so -t "$pkgdir/usr/lib/mitsuba2/plugins"
# install data
mkdir -p "$pkgdir/usr/share/mitsuba2"
cp -R dist/data "$pkgdir/usr/share/mitsuba2/data"
# install python module
local site_packages=$(python -c "import site; print(site.getsitepackages()[0])")
mkdir -p "$pkgdir$site_packages"
cp -R dist/python/* "$pkgdir$site_packages"
# install documentation
mkdir -p "$pkgdir/usr/share/doc/mitsuba2"
cp -R "$srcdir/build/html" "$pkgdir/usr/share/doc/mitsuba2"
# folders which are not used/should not be shipped
rm -rf "$pkgdir/include" "$pkgdir/lib"
}
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