name: Configure Test runner
description: Select the installed compiler and graphics stack without modifying the host
inputs:
  gpu:
    description: Require the native GPU stack when running on 8845
    default: "false"
runs:
  using: composite
  steps:
    - shell: bash
      env:
        NEED_GPU: ${{ inputs.gpu }}
      run: |
        if [ "$RUNNER_ENVIRONMENT" = "self-hosted" ] && [ "$NEED_GPU" = true ]; then
          for tool in clang clang++ cmake ninja ccache; do command -v "$tool"; done
          test -r /usr/share/vulkan/icd.d/dzn_icd.json
          test -e /dev/dxg
          {
            echo 'MOBILEGL_CI_NATIVE_GPU=1'
            echo 'MOBILEGL_CI_CC=clang'
            echo 'MOBILEGL_CI_CXX=clang++'
            echo 'MOBILEGL_CI_LLD=ld.lld'
            echo 'MOBILEGL_CI_SOFTWARE_RENDERING=OFF'
            echo 'VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/dzn_icd.json'
            echo 'VK_DRIVER_FILES=/usr/share/vulkan/icd.d/dzn_icd.json'
            echo 'EGL_PLATFORM=surfaceless'
            echo 'LIBGL_ALWAYS_SOFTWARE=0'
            echo 'GALLIUM_DRIVER=d3d12'
            echo 'MESA_LOADER_DRIVER_OVERRIDE=d3d12'
          } >> "$GITHUB_ENV"
        else
          {
            echo 'MOBILEGL_CI_NATIVE_GPU=0'
            echo 'MOBILEGL_CI_CC=clang-20'
            echo 'MOBILEGL_CI_CXX=clang++-20'
            echo 'MOBILEGL_CI_LLD=ld.lld-20'
            echo 'MOBILEGL_CI_SOFTWARE_RENDERING=ON'
            echo 'VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/lvp_icd.json'
            echo 'VK_DRIVER_FILES=/usr/share/vulkan/icd.d/lvp_icd.json'
          } >> "$GITHUB_ENV"
        fi