d4r: official NVIDIA DLSS on AMD GPUs under Linux and Proton

scripts/build_d4r_nvngx_shim.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+# Builds build/d4r_nvngx.dll, the D3D12-to-CUDA NGX core shim loaded by
+# OptiScaler through its NvngxPath setting.
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+MINGW_CXX="${MINGW_CXX:-x86_64-w64-mingw32-g++}"
+CLANG_CL="${CLANG_CL:-clang-cl}"
+
+VULKAN_INCLUDE="${VULKAN_INCLUDE:-/usr/include}"
+
+mkdir -p "$ROOT/build"
+# Only the Vulkan headers from the host include tree, not its libc headers.
+mkdir -p "$ROOT/build/vulkan-include"
+ln -sfn "$VULKAN_INCLUDE/vulkan" "$ROOT/build/vulkan-include/vulkan"
+ln -sfn "$VULKAN_INCLUDE/vk_video" "$ROOT/build/vulkan-include/vk_video"
+PARAM_OBJECT="$ROOT/build/d4r_ngx_param_msvc.obj"
+"$CLANG_CL" --target=x86_64-pc-windows-msvc /nologo /std:c++20 /O2 /c /GS- /GR- /EHs-c- /Zl \
+  "/Fo$PARAM_OBJECT" "$ROOT/tools/d4r_ngx_param_msvc.cpp"
+"$MINGW_CXX" -std=c++20 -O2 -Wall -Wextra -Wno-missing-field-initializers -I"$ROOT/build/vulkan-include" -shared -static -static-libgcc -static-libstdc++ \
+  "$ROOT/tools/d4r_nvngx_shim.cpp" "$ROOT/tools/d4r_ngx_param_host.cpp" "$PARAM_OBJECT" \
+  -o "$ROOT/build/d4r_nvngx.dll"
+printf 'Built %s\n' "$ROOT/build/d4r_nvngx.dll"