third_party/liblouis/BUILD.gn

# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/config/nacl/config.gni")
import("//build/config/nacl/rules.gni")

if (current_toolchain == default_toolchain) {
  chromevox_test_data_dir = "$root_build_dir/chromevox_test_data/braille"

  # Build Liblouis library
  #
  # This target is used to build and assemble Liblouis braille translator
  # including Native Client executable, manifest and translation tables.
  #
  # Variables:
  #   dest_dir: destination path for all translator files
  #   deps: private linked dependencies
  #   testonly: a target must only be used for testing
  template("liblouis_library") {
    assert(defined(invoker.dest_dir), "Must define dest_dir")
    forward_variables_from(invoker, [ "dest_dir" ])

    tables_target_name = "${target_name}_tables"
    tables_json_target_name = "${target_name}_tables_json"
    nexe_target_name = "${target_name}_nexe"
    nmf_target_name = "${target_name}_nmf"
    final_target_name = target_name

    action(tables_target_name) {
      forward_variables_from(invoker, [ "testonly" ])
      visibility = [ ":$final_target_name" ]
      script = "copy_tables.py"
      inputs = [
        "liblouis_list_tables.py",
      ]
      depfile = "$target_gen_dir/$target_name.d"
      sources = [
        "tables.json",
      ]
      outputs = [
        "$depfile.stamp",
      ]
      args = [
               "-D",
               rebase_path(".", root_build_dir),
               "-D",
               rebase_path("src/tables", root_build_dir),
               "-d",
               rebase_path("$dest_dir/tables", root_build_dir),
               "-e",
               "cvox-common.cti",
               "--depfile",
               rebase_path(depfile, root_build_dir),
             ] + rebase_path(sources, root_build_dir)
    }

    copy(tables_json_target_name) {
      forward_variables_from(invoker, [ "testonly" ])
      visibility = [ ":$final_target_name" ]
      sources = [
        "tables.json",
      ]
      outputs = [
        "$dest_dir/{{source_file_part}}",
      ]
    }

    copy(nexe_target_name) {
      forward_variables_from(invoker, [ "testonly" ])
      visibility = [
        ":$final_target_name",
        ":$nmf_target_name",
      ]
      nacl_wrapper = "liblouis_nacl_wrapper(//build/toolchain/nacl:clang_newlib_${target_cpu})"
      path = get_label_info(":$nacl_wrapper", "root_out_dir")
      sources = [
        "${path}/liblouis_nacl.nexe",
      ]

      if (current_cpu == "x86") {
        nmf_cpu = "x86_32"
      } else if (current_cpu == "x64") {
        nmf_cpu = "x86_64"
      } else {
        nmf_cpu = current_cpu
      }
      outputs = [
        "$dest_dir/{{source_name_part}}_${nmf_cpu}.nexe",
      ]
      deps = [
        ":$nacl_wrapper",
      ]
    }

    generate_nmf(nmf_target_name) {
      forward_variables_from(invoker, [ "testonly" ])
      visibility = [ ":$final_target_name" ]
      executables = get_target_outputs(":$nexe_target_name")
      nmf = "$dest_dir/liblouis_nacl.nmf"
      deps = [
        ":$nexe_target_name",
      ]
    }

    group(target_name) {
      forward_variables_from(invoker, [ "testonly" ])
      deps = [
        ":$nexe_target_name",
        ":$nmf_target_name",
        ":$tables_json_target_name",
        ":$tables_target_name",
      ]
      if (defined(invoker.deps)) {
        deps += invoker.deps
      }
    }
  }

  liblouis_library("liblouis") {
    dest_dir = "$root_build_dir/resources/chromeos/chromevox/braille"
  }

  liblouis_library("liblouis_test_data") {
    testonly = true
    dest_dir = chromevox_test_data_dir
    deps = [
      ":liblouis_test_files",
    ]
  }

  copy("liblouis_test_files") {
    visibility = [ ":liblouis_test_data" ]
    testonly = true
    sources = [
      "//chrome/test/data/chromeos/liblouis_nacl/manifest.json",
      "//chrome/test/data/chromeos/liblouis_nacl/test.js",
    ]
    outputs = [
      "${chromevox_test_data_dir}/{{source_file_part}}",
    ]
  }
}

if (is_nacl) {
  config("liblouis_nacl_config") {
    cflags = [
      "-Wno-sign-compare",

      # Needed for target_arch=mipsel
      # src/liblouis/compileTranslationTable.c:1414
      "-Wno-tautological-compare",

      # Needed for target_arch=mipsel
      # src/liblouis/logging.c:58
      "-Wno-non-literal-null-conversion",
    ]
  }

  source_set("liblouis_nacl") {
    visibility = [ ":liblouis_nacl_wrapper" ]
    sources = [
      "overrides/liblouis/config.h",
      "overrides/liblouis/liblouis.h",
      "src/liblouis/compileTranslationTable.c",
      "src/liblouis/logging.c",
      "src/liblouis/lou_backTranslateString.c",
      "src/liblouis/lou_translateString.c",
      "src/liblouis/transcommon.ci",
      "src/liblouis/wrappers.c",
    ]
    include_dirs = [
      "overrides/liblouis",
      "src/liblouis",
      ".",
      "../..",
    ]
    configs += [ ":liblouis_nacl_config" ]
  }

  executable("liblouis_nacl_wrapper") {
    visibility = [ ":*" ]
    output_name = "liblouis_nacl"
    sources = [
      "nacl_wrapper/liblouis_instance.cc",
      "nacl_wrapper/liblouis_instance.h",
      "nacl_wrapper/liblouis_module.cc",
      "nacl_wrapper/liblouis_module.h",
      "nacl_wrapper/liblouis_wrapper.cc",
      "nacl_wrapper/liblouis_wrapper.h",
      "nacl_wrapper/translation_params.h",
      "nacl_wrapper/translation_result.h",
    ]
    deps = [
      ":liblouis_nacl",
      "//native_client_sdk/src/libraries/nacl_io",
      "//ppapi/cpp",
      "//ppapi/native_client:ppapi_lib",
      "//third_party/jsoncpp",
    ]
  }
}