#!/bin/bash

# blob:summary=Detect whether a DRM device with an accelerated driver is present.

drm_path="${BLOB_DRM_PATH:-/sys/class/drm}"

accelerated_drivers=(
  amdgpu
  i915
  nouveau
  nvidia
  nvidia-drm
  radeon
  xe
)

shopt -s nullglob

for card in "$drm_path"/card[0-9]*; do
  [[ -L $card/device/driver ]] || continue
  driver=$(basename "$(readlink -f "$card/device/driver")")

  for accelerated in "${accelerated_drivers[@]}"; do
    [[ $driver == "$accelerated" ]] && exit 0
  done
done

exit 1