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      1 # Copyright 2014 The Chromium Authors. All rights reserved.
      2 # Use of this source code is governed by a BSD-style license that can be
      3 # found in the LICENSE file.
      4 
      5 import("//build/config/ui.gni")
      6 
      7 if (is_android) {
      8   import("//build/config/android/config.gni")
      9 } else {
     10   # TODO(brettw) remove this once && early-out is checked in.
     11   is_android_webview_build = false
     12 }
     13 if (cpu_arch == "arm") {
     14   import("//build/config/arm.gni")
     15 } else {
     16   # TODO(brettw) remove this once && early-out is checked in.
     17   arm_version = 0
     18 }
     19 
     20 declare_args() {
     21   # Enables the Oilpan garbage-collection infrastructure.
     22   enable_oilpan = false
     23 
     24   # Set to true to enable the clang plugin that checks the usage of the Blink
     25   # garbage-collection infrastructure during compilation.
     26   blink_gc_plugin = false
     27   blink_gc_plugin_dump_graph = false
     28 
     29   blink_asserts_always_on = false
     30 }
     31 
     32 use_default_render_theme = use_aura
     33 
     34 # Whether Android ARM or x86 build uses OpenMAX DL FFT. Currently only
     35 # supported on Android ARMv7+, ia32 or x64 without webview. When enabled, this
     36 # will also enable WebAudio support on Android ARM, ia32 and x64. Default is
     37 # enabled. Whether WebAudio is actually available depends on runtime settings
     38 # and flags.
     39 use_openmax_dl_fft = is_android && !is_android_webview_build &&
     40   (cpu_arch == "x86" ||
     41    cpu_arch == "x64" ||
     42    (cpu_arch == "arm" && arm_version >= 7))
     43 
     44 use_webaudio_ffmpeg = !is_mac && !is_android
     45 
     46 # Set this to true to enable use of concatenated impulse responses for the HRTF
     47 # panner in WebAudio.
     48 # TODO(brettw) do we need this or can we assume its always on?
     49 use_concatenated_impulse_responses = true
     50 
     51 # feature_defines_list ---------------------------------------------------------
     52 
     53 feature_defines_list = [
     54   "ENABLE_SVG_FONTS=1",
     55 ]
     56 
     57 if (is_debug) {
     58   # TODO(GYP) this should also be set when release_valgrind_build is set,
     59   # but we don't have that flag in the GN build yet.
     60   feature_defines_list += [ "WTF_USE_DYNAMIC_ANNOTATIONS=1" ]
     61 }
     62 
     63 if (use_concatenated_impulse_responses) {
     64   feature_defines_list += [ "WTF_USE_CONCATENATED_IMPULSE_RESPONSES=1" ]
     65 }
     66 
     67 if (!is_android) {
     68   feature_defines_list += [
     69     "ENABLE_INPUT_MULTIPLE_FIELDS_UI=1",
     70     "ENABLE_WEB_AUDIO=1",
     71   ]
     72 }
     73 
     74 if (use_webaudio_ffmpeg) {
     75   feature_defines_list += [ "WTF_USE_WEBAUDIO_FFMPEG=1" ]
     76 }
     77 
     78 if (use_openmax_dl_fft) {
     79   feature_defines_list += [
     80     "WTF_USE_WEBAUDIO_OPENMAX_DL_FFT=1",
     81     # Enabling the FFT is enough to enable WebAudio support to
     82     # allow most WebAudio features to work on Android.
     83     "ENABLE_WEB_AUDIO=1",
     84   ]
     85 }
     86 
     87 if (!is_mac) {
     88   # Mac OS X has not implemented support for ENABLE(OPENTYPE_VERTICAL) yet.
     89   feature_defines_list += [ "ENABLE_OPENTYPE_VERTICAL=1" ]
     90 }
     91 
     92 if (use_default_render_theme) {
     93   feature_defines_list += [ "WTF_USE_DEFAULT_RENDER_THEME=1" ]
     94 }
     95 if (enable_oilpan) {
     96   feature_defines_list += [ "ENABLE_OILPAN=1" ]
     97 }
     98 if (blink_asserts_always_on) {
     99   feature_defines_list += [ "ENABLE_ASSERT=1" ]
    100 }
    101 
    102 # feature_defines_string -------------------------------------------------------
    103 
    104 # Convert the list to a space-separated string for passing to scripts.
    105 # This would be the equivalent of passing '<(feature_defines)' in GYP.
    106 feature_defines_string = exec_script(
    107     "build/gn_list_to_space_separated_string.py",
    108     feature_defines_list,
    109     "trim string")
    110