# Copyright 2016 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/buildflag_header.gni")
import("//build/config/dcheck_always_on.gni")
import("//build/config/jumbo.gni")
import("//build/config/ui.gni")
import("//testing/test.gni")
import("//ui/ozone/ozone.gni")
import("features.gni")

# Generate a buildflag header for compile-time checking of Vulkan support.
buildflag_header("buildflags") {
  header = "buildflags.h"
  flags = [ "ENABLE_VULKAN=$enable_vulkan" ]
}

if (enable_vulkan) {
  use_vulkan_xlib = use_x11 || ozone_platform_x11
  config("vulkan_config") {
    if (use_vulkan_xlib) {
      defines = [ "USE_VULKAN_XLIB" ]
    }
  }

  jumbo_component("vulkan") {
    output_name = "vulkan_wrapper"

    sources = [
      "semaphore_handle.cc",
      "semaphore_handle.h",
      "vulkan_command_buffer.cc",
      "vulkan_command_buffer.h",
      "vulkan_command_pool.cc",
      "vulkan_command_pool.h",
      "vulkan_device_queue.cc",
      "vulkan_device_queue.h",
      "vulkan_export.h",
      "vulkan_fence_helper.cc",
      "vulkan_fence_helper.h",
      "vulkan_function_pointers.cc",
      "vulkan_function_pointers.h",
      "vulkan_implementation.cc",
      "vulkan_implementation.h",
      "vulkan_instance.cc",
      "vulkan_instance.h",
      "vulkan_surface.cc",
      "vulkan_surface.h",
      "vulkan_swap_chain.cc",
      "vulkan_swap_chain.h",
      "vulkan_util.cc",
      "vulkan_util.h",
    ]

    configs += [ "//build/config:precompiled_headers" ]
    public_configs = [ ":vulkan_config" ]

    defines = [ "VULKAN_IMPLEMENTATION" ]
    if (is_android) {
      defines += [ "VK_USE_PLATFORM_ANDROID_KHR" ]
    }

    all_dependent_configs = [ "//third_party/vulkan:vulkan_config" ]

    deps = [
      "//base",
      "//ui/gfx",
    ]
    public_deps = [
      "//gpu/config:vulkan_info",
    ]
    data_deps = []

    if (is_posix) {
      sources += [
        "vulkan_posix_util.cc",
        "vulkan_posix_util.h",
      ]
    }

    if (is_fuchsia) {
      sources += [ "fuchsia/vulkan_fuchsia_ext.h" ]

      public_deps += [ "//third_party/fuchsia-sdk/sdk:zx" ]

      data_deps += [ "//third_party/fuchsia-sdk:vulkan_base" ]

      # VulkanInstance enables validation layer in Debug builds and when DCHECKs
      # are enabled in Release builds. In these cases the validation layer
      # libraries and configs need to be included in the generated Fuchsia
      # package.
      if (is_debug || dcheck_always_on) {
        data_deps += [ "//third_party/fuchsia-sdk:vulkan_validation" ]
      }
    }
  }

  jumbo_static_library("test_support") {
    testonly = true
    sources = [
      "tests/native_window.h",
    ]

    deps = [
      "//ui/gfx",
      "//ui/gfx:native_widget_types",
    ]
    if (use_x11) {
      sources += [ "tests/native_window_x11.cc" ]
      deps += [ "//ui/gfx/x" ]
      configs += [ "//build/config/linux:x11" ]
    }
  }

  # TODO(cblume): These tests should run on each platform -- crbug.com/858614
  if (use_x11) {
    test("vulkan_tests") {
      sources = [
        "tests/basic_vulkan_test.cc",
        "tests/basic_vulkan_test.h",
        "tests/vulkan_test.cc",
        "tests/vulkan_tests_main.cc",
        "vulkan_fence_helper_unittest.cc",
      ]

      deps = [
        ":test_support",
        "//base:base",
        "//base/test:test_support",
        "//components/viz/common:vulkan_context_provider",
        "//gpu/vulkan/init",
        "//testing/gmock",
        "//testing/gtest",
        "//ui/gfx",
        "//ui/gfx:native_widget_types",
        "//ui/gfx/geometry",
      ]
    }
  }
}