gemrb: cleaning up (#377400)

{

  lib,

  stdenv,

  runCommand,

  fetchFromGitHub,

  cmake,

  pkg-config,

  imagemagick,

  gtest,

  SDL2,

  SDL2_mixer,

  freetype,

  openal,

  python3,

  zlib,

}:

let

  # the GLES backend on rpi is untested as I don't have the hardware

  backend = if stdenv.hostPlatform.isx86 then "OpenGL" else "GLES";

  withVLC = stdenv.hostPlatform.isDarwin;

  backend ? if stdenv.hostPlatform.isx86 then "OpenGL" else "GLES",

}:

  inherit (lib) optional optionalString;

# Previously we only used libvlc *on* darwin, which is incorrect. According to

# https://github.com/gemrb/gemrb/blob/master/INSTALL it is needed for some mac versions of some

# games but there is obviously nothing wrong using those on linux.

# Additionally, when gemrb adds support for the EE games, libvlc will be needed anyway.

in

stdenv.mkDerivation rec {

  pname = "gemrb";

let

  version = "0.9.4";

  src = fetchFromGitHub {

    hash = "sha256-+aPnOJQGRblqcrblVU5ZwA8CZqeT19rxEtn3GLuofYU=";

  };

  icons = runCommand "gemrb-icons" { nativeBuildInputs = [ imagemagick ]; } ''

    for s in 48 64 96 128 256 512 1024; do

      size=''${s}x''${s}

      dir=$out/share/icons/hicolor/$size

      mkdir -p $dir

      magick -background none -size $size ${src}/artwork/logo04-rb_only.svg -format png $dir/gemrb.png

    done

  '';

in

stdenv.mkDerivation (finalAttrs: {

  pname = "gemrb";

  inherit version src;

  buildInputs = [

    SDL2

    SDL2_mixer

    libGL

    libiconv

    libpng

    libvlc

    libvorbis

    openal

    python3

    zlib

  ] ++ optional withVLC libvlc;

  nativeBuildInputs = [ cmake ];

  ];

  # libvlc isn't being detected properly as of 0.9.0, so set it

  LIBVLC_INCLUDE_PATH = optionalString withVLC "${lib.getDev libvlc}/include";

  LIBVLC_LIBRARY_PATH = optionalString withVLC "${lib.getLib libvlc}/lib";

  nativeBuildInputs = [

    cmake

    pkg-config

  ] ++ lib.optionals (finalAttrs.doCheck or false) [ gtest ];

  cmakeFlags = [

    "-DDATA_DIR=${placeholder "out"}/share/gemrb"

    "-DEXAMPLE_CONF_DIR=${placeholder "out"}/share/doc/gemrb/examples"

    "-DSYSCONF_DIR=/etc"

    (lib.cmakeFeature "DATA_DIR" "${placeholder "out"}/share/gemrb")

    (lib.cmakeFeature "EXAMPLE_CONF_DIR" "${placeholder "out"}/share/doc/gemrb/examples")

    (lib.cmakeFeature "SYSCONF_DIR" "/etc")

    # use the Mesa drivers for video on ARM (harmless on x86)

    "-DDISABLE_VIDEOCORE=ON"

    "-DLAYOUT=opt"

    "-DOPENGL_BACKEND=${backend}"

    "-DOpenGL_GL_PREFERENCE=GLVND"

    (lib.cmakeBool "DISABLE_VIDEOCORE" true)

    (lib.cmakeFeature "LAYOUT" "opt")

    (lib.cmakeFeature "OPENGL_BACKEND" backend)

    (lib.cmakeFeature "OpenGL_GL_PREFERENCE" "GLVND")

    (lib.cmakeBool "USE_TESTS" (finalAttrs.doCheck or false))

  ];

  postInstall = ''

    for s in 36 48 72 96 144; do

      install -Dm444 ../artwork/gemrb-logo-glow-''${s}px.png $out/share/icons/hicolor/''${s}x''${s}/gemrb.png

    done

    install -Dm444 ../artwork/gemrb-logo.png $out/share/icons/gemrb.png

    cp -r ${icons}/share/icons $out/share/

  '';

  # a bunch of tests fail in our sandbox

  doCheck = false;

  meta = with lib; {

    description = "Reimplementation of the Infinity Engine, used by games such as Baldur's Gate";

    longDescription = ''

    homepage = "https://gemrb.org/";

    license = licenses.gpl2Only;

    maintainers = with maintainers; [ peterhoeg ];

    mainProgram = "gemrb";

  };

}

})