# Copyright 2018 The Dawn & Tint Authors
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# This files imports the overrides for Dawn but sets the defaults so that
# projects including Dawn don't have to set dirs if they happen to use the
# same.
# It takes advantage of GN's variable scoping rules to define global variables
# inside if constructs.

import("//build_overrides/dawn.gni")

if (!defined(dawn_standalone)) {
  dawn_standalone = false
}

if (!defined(dawn_root)) {
  dawn_root = get_path_info("..", "abspath")
}
dawn_gen_root = get_path_info("${dawn_root}", "gen_dir")

if (!defined(dawn_jinja2_dir)) {
  dawn_jinja2_dir = "//third_party/jinja2"
}

if (!defined(dawn_glfw_dir)) {
  dawn_glfw_dir = "//third_party/glfw3/src"
}

if (!defined(dawn_googletest_dir)) {
  dawn_googletest_dir = "//third_party/googletest"
}

if (!defined(dawn_spirv_tools_dir)) {
  dawn_spirv_tools_dir = "//third_party/spirv-tools/src"
}

if (!defined(dawn_swiftshader_dir)) {
  # Default to swiftshader not being available.
  dawn_swiftshader_dir = ""
}

if (!defined(dawn_vulkan_headers_dir)) {
  dawn_vulkan_headers_dir = "//third_party/vulkan-headers/src"
}

if (!defined(dawn_vulkan_loader_dir)) {
  # Default to the Vulkan loader not being available except in standalone.
  dawn_vulkan_loader_dir = ""
  if (dawn_standalone) {
    dawn_vulkan_loader_dir = "//third_party/vulkan-loader/src"
  }
}

if (!defined(dawn_vulkan_utility_libraries_dir)) {
  dawn_vulkan_utility_libraries_dir =
      "//third_party/vulkan-utility-libraries/src"
}

if (!defined(dawn_vulkan_validation_layers_dir)) {
  # Default to VVLs not being available.
  dawn_vulkan_validation_layers_dir = ""
}

if (!defined(dawn_abseil_dir)) {
  dawn_abseil_dir = "//third_party/abseil-cpp"
}

if (!defined(dawn_dxc_dir)) {
  dawn_dxc_dir = "//third_party/directx-shader-compiler/src"
}

if (!defined(dawn_dxc_gn_dir)) {
  dawn_dxc_gn_dir = "//third_party/directx-shader-compiler"
}

if (!defined(dawn_dxheaders_dir)) {
  dawn_dxheaders_dir = "//third_party/directx-headers/src"
}

if (!defined(dawn_version_file)) {
  dawn_version_file = ""
}

if (!defined(dawn_opengl_registry_dir)) {
  dawn_opengl_registry_dir = "${dawn_root}/third_party/OpenGL-Registry/src"
}

if (!defined(dawn_egl_registry_dir)) {
  dawn_egl_registry_dir = "${dawn_root}/third_party/EGL-Registry/src"
}

if (!defined(dawn_emscripten_dir)) {
  dawn_emscripten_dir = "//third_party/emsdk/upstream/emscripten"
}