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

scripts/build_ngx_d3d12_probe.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+MINGW_CXX="${MINGW_CXX:-x86_64-w64-mingw32-g++}"
+
+if [[ -z "${NVSDK_NGX_INCLUDE:-}" || ! -f "$NVSDK_NGX_INCLUDE/nvsdk_ngx.h" ]]; then
+  printf '%s\n' "Set NVSDK_NGX_INCLUDE to a directory containing NVIDIA's nvsdk_ngx.h and nvsdk_ngx_defs.h" >&2
+  exit 2
+fi
+
+mkdir -p "$ROOT/build"
+"$MINGW_CXX" -std=c++20 -O2 -Wall -Wextra -static -static-libgcc -static-libstdc++ \
+  -I"$NVSDK_NGX_INCLUDE" \
+  "$ROOT/tools/ngx_d3d12_probe.cpp" \
+  -o "$ROOT/build/ngx_d3d12_probe.exe"
+printf 'Built %s\n' "$ROOT/build/ngx_d3d12_probe.exe"