app-emulation/vkd3d-proton: fix setup script with wine[wow64]

Currently it will try to install both 32bit and 64bit dlls
in system32. Very few likely use wow64 so far, but this could
come biting later without a revbump.

Ideally do not want to use these scripts anymore and write
something new that could be packaged separately and shared
between dxvk, vkd3d-proton, and potential new packages.
Albeit haven't explored the cleanest way to do this yet,
so just do a dirty sanity check + fallback for now (wish
could just use these directly from system paths, but wine
really does not seem to offer a way to do this).

Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

1 files changed, 203 insertions, 0 deletions

diff --git a/app-emulation/vkd3d-proton/vkd3d-proton-2.9-r1.ebuild b/app-emulation/vkd3d-proton/vkd3d-proton-2.9-r1.ebuild
new file mode 100644
index 000000000000..cf5467c6fde5
--- /dev/null
+++ b/app-emulation/vkd3d-proton/vkd3d-proton-2.9-r1.ebuild
@@ -0,0 +1,203 @@
+# Copyright 2022-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+MULTILIB_ABIS="amd64 x86" # allow usage on /no-multilib/
+MULTILIB_COMPAT=( abi_x86_{32,64} )
+inherit flag-o-matic meson-multilib toolchain-funcs
+
+if [[ ${PV} == 9999 ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/HansKristian-Work/vkd3d-proton.git"
+	EGIT_SUBMODULES=(
+		# uses hacks / recent features and easily breaks, keep bundled headers
+		# (also cross-compiled and -I/usr/include is troublesome)
+		subprojects/{SPIRV,Vulkan}-Headers
+		subprojects/dxil-spirv
+		subprojects/dxil-spirv/third_party/spirv-headers # skip cross/tools
+	)
+else
+	HASH_VKD3D=6365efeba253807beecaed0eaa963295522c6b70 # match tag on bumps
+	HASH_DXIL=f20a0fb4e984a83743baa9d863eb7b26228bcca3
+	HASH_SPIRV=1d31a100405cf8783ca7a31e31cdd727c9fc54c3
+	HASH_SPIRV_DXIL=aa331ab0ffcb3a67021caa1a0c1c9017712f2f31
+	HASH_VULKAN=bd6443d28f2ebecedfb839b52d612011ba623d14
+	SRC_URI="
+		https://github.com/HansKristian-Work/vkd3d-proton/archive/refs/tags/v${PV}.tar.gz
+			-> ${P}.tar.gz
+		https://github.com/HansKristian-Work/dxil-spirv/archive/${HASH_DXIL}.tar.gz
+			-> ${PN}-dxil-spirv-${HASH_DXIL::10}.tar.gz
+		https://github.com/KhronosGroup/SPIRV-Headers/archive/${HASH_SPIRV}.tar.gz
+			-> ${PN}-spirv-headers-${HASH_SPIRV::10}.tar.gz
+		https://github.com/KhronosGroup/SPIRV-Headers/archive/${HASH_SPIRV_DXIL}.tar.gz
+			-> ${PN}-spirv-headers-${HASH_SPIRV_DXIL::10}.tar.gz
+		https://github.com/KhronosGroup/Vulkan-Headers/archive/${HASH_VULKAN}.tar.gz
+			-> ${PN}-vulkan-headers-${HASH_VULKAN::10}.tar.gz"
+	KEYWORDS="-* amd64 x86"
+fi
+
+DESCRIPTION="Fork of VKD3D, development branches for Proton's Direct3D 12 implementation"
+HOMEPAGE="https://github.com/HansKristian-Work/vkd3d-proton/"
+
+LICENSE="LGPL-2.1+ Apache-2.0 MIT"
+SLOT="0"
+IUSE="+abi_x86_32 crossdev-mingw debug extras"
+
+BDEPEND="
+	dev-util/glslang
+	!crossdev-mingw? ( dev-util/mingw64-toolchain[${MULTILIB_USEDEP}] )"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.6-wow64-setup.patch
+)
+
+pkg_pretend() {
+	[[ ${MERGE_TYPE} == binary ]] && return
+
+	if use crossdev-mingw && [[ ! -v MINGW_BYPASS ]]; then
+		local tool=-w64-mingw32-g++
+		for tool in $(usev abi_x86_64 x86_64${tool}) $(usev abi_x86_32 i686${tool}); do
+			if ! type -P ${tool} >/dev/null; then
+				eerror "With USE=crossdev-mingw, it is necessary to setup the mingw toolchain."
+				eerror "For instructions, please see: https://wiki.gentoo.org/wiki/Mingw"
+				use abi_x86_32 && use abi_x86_64 &&
+					eerror "Also, with USE=abi_x86_32, will need both i686 and x86_64 toolchains."
+				die "USE=crossdev-mingw is enabled, but ${tool} was not found"
+			elif [[ ! $(LC_ALL=C ${tool} -v 2>&1) =~ "Thread model: posix" ]]; then
+				eerror "${PN} requires GCC to be built with --enable-threads=posix"
+				eerror "Please see: https://wiki.gentoo.org/wiki/Mingw#POSIX_threads_for_Windows"
+				die "USE=crossdev-mingw is enabled, but ${tool} does not use POSIX threads"
+			fi
+		done
+		tool=-w64-mingw32-widl
+		for tool in $(usev abi_x86_64 x86_64${tool}) $(usev abi_x86_32 i686${tool}); do
+			if ! type -P widl >/dev/null && ! type -P ${tool} >/dev/null; then
+				eerror "With USE=crossdev-mingw, you need to provide the widl compiler by either"
+				eerror "building crossdev mingw64-runtime with USE=tools or installing wine."
+				die "USE=crossdev-mingw is set but neither widl nor ${tool} were found"
+			fi
+		done
+	fi
+}
+
+src_prepare() {
+	if [[ ${PV} != 9999 ]]; then
+		rmdir subprojects/{{SPIRV,Vulkan}-Headers,dxil-spirv} || die
+		mv ../dxil-spirv-${HASH_DXIL} subprojects/dxil-spirv || die
+		mv ../SPIRV-Headers-${HASH_SPIRV} subprojects/SPIRV-Headers || die
+		mv ../Vulkan-Headers-${HASH_VULKAN} subprojects/Vulkan-Headers || die
+
+		# dxil and vkd3d's spirv headers currently mismatch and incompatible
+		rmdir subprojects/dxil-spirv/third_party/spirv-headers || die
+		mv ../SPIRV-Headers-${HASH_SPIRV_DXIL} \
+			subprojects/dxil-spirv/third_party/spirv-headers || die
+#		ln -s ../../../SPIRV-Headers/include \
+#			subprojects/dxil-spirv/third_party/spirv-headers || die
+	fi
+
+	default
+
+	sed -i "/^basedir=/s|=.*|=${EPREFIX}/usr/lib/${PN}|" setup_vkd3d_proton.sh || die
+
+	if [[ ${PV} != 9999 ]]; then
+		# without .git, meson sets vkd3d_build as 0x${PV} leading to failure
+		sed -i "s/@VCS_TAG@/${HASH_VKD3D::15}/" vkd3d_build.h.in || die
+		sed -i "s/@VCS_TAG@/${HASH_VKD3D::7}/" vkd3d_version.h.in || die
+	fi
+}
+
+src_configure() {
+	use crossdev-mingw || PATH=${BROOT}/usr/lib/mingw64-toolchain/bin:${PATH}
+
+	# -mavx with mingw-gcc has a history of obscure issues and
+	# disabling is seen as safer, e.g. `WINEARCH=win32 winecfg`
+	# crashes with -march=skylake >=wine-8.10, similar issues with
+	# znver4: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110273
+	append-flags -mno-avx
+
+	if [[ ${CHOST} != *-mingw* ]]; then
+		if [[ ! -v MINGW_BYPASS ]]; then
+			unset AR CC CXX RC STRIP WIDL
+			filter-flags '-fuse-ld=*'
+			filter-flags '-mfunction-return=thunk*' #878849
+			if has_version '<dev-util/mingw64-toolchain-11' ||
+				{ use crossdev-mingw &&
+					has_version "<cross-$(usex x86 i686 x86_64)-w64-mingw32/mingw64-runtime-11"; }
+			then
+				filter-flags '-fstack-protector*' #870136
+			fi
+		fi
+
+		CHOST_amd64=x86_64-w64-mingw32
+		CHOST_x86=i686-w64-mingw32
+		CHOST=$(usex x86 ${CHOST_x86} ${CHOST_amd64})
+
+		# preferring meson eclass' cross file over upstream's but, unlike
+		# dxvk, we lose static options in the process (from build-win*.txt)
+		append-ldflags -static -static-libgcc -static-libstdc++
+
+		strip-unsupported-flags
+	fi
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	# multilib's ${CHOST_amd64}-gcc -m32 is unusable with crossdev,
+	# unset again so meson eclass will set ${CHOST}-gcc + others
+	use crossdev-mingw && [[ ! -v MINGW_BYPASS ]] && unset AR CC CXX STRIP WIDL
+
+	# prefer ${CHOST}'s widl (mingw) over wine's as used by upstream if
+	# possible, but eclasses don't handle that so setup machine files
+	local widl=$(tc-getPROG WIDL widl)
+	use amd64 && [[ ${widl} == widl && ${ABI} == x86 ]] && widl="widl','-m32"
+	printf "[binaries]\nwidl = ['${widl}']\n" > "${T}"/widl.${ABI}.ini || die
+
+	local emesonargs=(
+		--prefix="${EPREFIX}"/usr/lib/${PN}
+		--{bin,lib}dir=x${ABI: -2}
+		--{cross,native}-file="${T}"/widl.${ABI}.ini
+		$(meson_use {,enable_}extras)
+		$(meson_use debug enable_trace)
+		$(usev !debug --strip) # portage won't strip .dll, so allow it here
+		-Denable_tests=false # needs wine/vulkan and is intended for manual use
+	)
+
+	meson_src_configure
+}
+
+multilib_src_install_all() {
+	dobin setup_vkd3d_proton.sh
+	einstalldocs
+
+	find "${ED}" -type f -name '*.a' -delete || die
+}
+
+pkg_postinst() {
+	if [[ ! ${REPLACING_VERSIONS} ]]; then
+		elog "To enable ${PN} on a wine prefix, you can run the following command:"
+		elog
+		elog "	WINEPREFIX=/path/to/prefix setup_vkd3d_proton.sh install --symlink"
+		elog
+		elog "Should also ensure that >=app-emulation/dxvk-2.1's dxgi.dll is available"
+		elog "on it, not meant to function independently even if only using d3d12."
+		elog
+		elog "See ${EROOT}/usr/share/doc/${PF}/README.md* for details."
+	elif [[ ${REPLACING_VERSIONS##* } ]]; then
+		if ver_test ${REPLACING_VERSIONS##* } -lt 2.7; then
+			elog
+			elog ">=${PN}-2.7 requires drivers and Wine to support vulkan-1.3, meaning:"
+			elog ">=wine-*-7.1 (or >=wine-proton-7.0), and >=mesa-22.0 (or >=nvidia-drivers-510)"
+		fi
+
+		if ver_test ${REPLACING_VERSIONS##* } -lt 2.9; then
+			elog
+			elog ">=${PN}-2.9 has a new file to install (d3d12core.dll), old Wine prefixes that"
+			elog "relied on '--symlink' may need updates by using the setup_vkd3d_proton.sh."
+			elog
+			elog "Furthermore, it may not function properly if >=app-emulation/dxvk-2.1's"
+			elog "dxgi.dll is not available on that prefix (even if only using d3d12)."
+		fi
+	fi
+}