sommelier-wrapper

#!/usr/bin/env bash
set -eu

BINDIR="$(dirname "$(command -v "${0}")")"
ARCH="$(uname -m)"

[[ "${ARCH}" == 'x86_64' ]] && LIB_SUFFIX='64' || LIB_SUFFIX=''

export XDG_RUNTIME_DIR=/var/run/chrome
export LD_ARGV0_REL=../bin/sommelier

# get a list of all available DRM render nodes
DRM_DEVICES_LIST=( /sys/class/drm/renderD* )

# if two or more render nodes available, choose one based on the corresponding render device path:
#   devices/platform/vegm/...: virtual GEM device provided by Chrome OS, hardware acceleration may not available on this node. (should be avoided)
#   devices/pci*/...: linked to the actual graphics card device path, provided by graphics card driver. (preferred)
#
if [[ "${#DRM_DEVICES_LIST[@]}" > 1 ]]; then
  for dev in ${DRM_DEVICES_LIST[@]}; do
    if [[ "$(coreutils --coreutils-prog=readlink -f "${dev}")" =~ devices/pci ]]; then
      SOMMELIER_DRM_DEVICE="/dev/dri/${dev##*/}"
      echo -e "\e[1;33m""${#DRM_DEVICES_LIST[@]} DRM render nodes available, ${SOMMELIER_DRM_DEVICE} will be used.""\e[0m"
      break
    fi
  done
else
  # if only one node available, use it directly
  SOMMELIER_DRM_DEVICE="/dev/dri/${DRM_DEVICES_LIST[0]##*/}"
fi

export SOMMELIER_DRM_DEVICE

exec /lib${LIB_SUFFIX}/ld-linux-*.so.? \
  --argv0 ${BINDIR}/sommelier \
  --library-path ${BINDIR}/../lib${LIB_SUFFIX} \
  --inhibit-rpath '' \
    ${BINDIR}/sommelier.elf \
      --display=wayland-0 \
      --drm-device=${SOMMELIER_DRM_DEVICE} \
      "${@}"