# Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
#
# Use of this source code is governed by a BSD-style license
# that can be found in the LICENSE file in the root of the source
# tree. An additional intellectual property rights grant can be found
# in the file PATENTS.  All contributing project authors may
# be found in the AUTHORS file in the root of the source tree.

import("../../../webrtc.gni")

rtc_source_set("agc") {
  sources = [
    "agc_manager_direct.cc",
    "agc_manager_direct.h",
  ]
  configs += [ "..:apm_debug_dump" ]
  deps = [
    ":gain_map",
    ":level_estimation",
    "..:apm_logging",
    "..:gain_control_interface",
    "../../..:typedefs",
    "../../..:webrtc_common",
    "../../../rtc_base:checks",
    "../../../rtc_base:logging",
    "../../../rtc_base:macromagic",
    "../../../rtc_base:safe_minmax",
    "../../../system_wrappers:metrics_api",
    "../agc2:level_estimation_agc",
    "../vad",
  ]
}

rtc_source_set("level_estimation") {
  sources = [
    "agc.cc",
    "agc.h",
    "loudness_histogram.cc",
    "loudness_histogram.h",
    "utility.cc",
    "utility.h",
  ]
  deps = [
    "../../..:typedefs",
    "../../..:webrtc_common",
    "../../../rtc_base:checks",
    "../../../rtc_base:macromagic",
    "../vad",
  ]
}

rtc_source_set("agc_legacy_c") {
  visibility = [
    ":*",
    "..:*",
  ]  # Only targets in this file and in
     # audio_processing can depend on
     # this.

  sources = [
    "legacy/analog_agc.c",
    "legacy/analog_agc.h",
    "legacy/digital_agc.c",
    "legacy/digital_agc.h",
    "legacy/gain_control.h",
  ]

  deps = [
    "../../..:typedefs",
    "../../..:webrtc_common",
    "../../../common_audio",
    "../../../common_audio:common_audio_c",
    "../../../common_audio:fft4g",
    "../../../rtc_base:checks",
    "../../../rtc_base:rtc_base_approved",
    "../../../system_wrappers:cpu_features_api",
  ]

  if (rtc_build_with_neon) {
    if (current_cpu != "arm64") {
      # Enable compilation for the NEON instruction set. This is needed
      # since //build/config/arm.gni only enables NEON for iOS, not Android.
      # This provides the same functionality as webrtc/build/arm_neon.gypi.
      suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
      cflags = [ "-mfpu=neon" ]
    }

    # Disable LTO on NEON targets due to compiler bug.
    # TODO(fdegans): Enable this. See crbug.com/408997.
    if (rtc_use_lto) {
      cflags -= [
        "-flto",
        "-ffat-lto-objects",
      ]
    }
  }
}

rtc_source_set("gain_map") {
  sources = [
    "gain_map_internal.h",
  ]
}

if (rtc_include_tests) {
  rtc_source_set("agc_unittests") {
    testonly = true
    sources = [
      "agc_manager_direct_unittest.cc",
      "loudness_histogram_unittest.cc",
      "mock_agc.h",
    ]
    configs += [ "..:apm_debug_dump" ]

    if ((!build_with_chromium || is_win) && is_clang) {
      # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
      suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
    }

    deps = [
      ":agc",
      ":level_estimation",
      "..:mocks",
      "../../..:webrtc_common",
      "../../../test:fileutils",
      "../../../test:test_support",
      "//testing/gtest",
    ]
  }
}