kc3-lang/angle /gni

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Author : Austin Kinross
Date : 2019-09-18 14:46:23
Hash : 11dc1635
Message : Add support for generating UWP (Windows Store) projects again Until late 2017, ANGLE supported Windows Store apps on Windows 8.1, Windows Phone 8.1, and Windows 10 (via the Universal Windows Platform, aka UWP). Unfortunately ANGLE deprecated support for Windows Store when it switched from GYP to GN in 2017. Since then, users have been able to use Microsoft\angle for their UWP apps but this isn't ideal since it's based on a 2017 copy of Google\angle. This PR bring back support for UWPs, so that UWP users can use Google\angle again. Specifically it: - Adds support for generating UWP projects via GN - Adds helper/util functions specific to UWP (they're mostly similar to the desktop Windows helpers) - Fixes some existing Windows Store code that's rotted since 2017 - Disables async shader compilation for UWPs, since its implementation calls wait on the UI thread (which is forbidden in UWPs) - Renames 'ANGLE_ENABLE_WINDOWS_STORE' to 'ANGLE_ENABLE_WINDOWS_UWP', since ANGLE only support UWPs now - Fixes misc other related issues (such as dependencies on D3D9 headers in API-agnostic code) Note that this doesn't bring back support for Windows/Phone 8.1. BUG=angleproject:3922 Change-Id: Ia79ae05a5e0e0a0625eb633bf1928722dfd3e85f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1811871 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

angle.gni

# Copyright 2019 The ANGLE 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.

import("//build/config/dcheck_always_on.gni")
import("//build/config/sanitizers/sanitizers.gni")
import("//build/config/ui.gni")  # import the use_x11 variable
import("//build_overrides/angle.gni")
import("//build_overrides/build.gni")
import("//testing/test.gni")
if (is_android) {
  import("//build/config/android/config.gni")
}

if (build_with_chromium) {
  import("//ui/ozone/ozone.gni")
} else {
  declare_args() {
    ozone_platform_gbm = false
  }
}

# Subdirectory to place data files (e.g. layer JSON files).
angle_data_dir = "angledata"

declare_args() {
  if (current_cpu == "arm64" || current_cpu == "x64" ||
      current_cpu == "mips64el" || current_cpu == "s390x" ||
      current_cpu == "ppc64") {
    angle_64bit_current_cpu = true
  } else if (current_cpu == "arm" || current_cpu == "x86" ||
             current_cpu == "mipsel" || current_cpu == "s390" ||
             current_cpu == "ppc") {
    angle_64bit_current_cpu = false
  } else {
    assert(false, "Unknown current CPU: $current_cpu")
  }
}

declare_args() {
  if (!is_android) {
    ndk_api_level_at_least_26 = false
  } else {
    ndk_api_level_at_least_26 =
        (!angle_64bit_current_cpu && android32_ndk_api_level >= 26) ||
        (angle_64bit_current_cpu && android64_ndk_api_level >= 26)
  }
  angle_shared_libvulkan = false

  # There's no "is_winuwp" helper in BUILDCONFIG.gn, so we define one ourselves
  angle_is_winuwp = is_win && current_os == "winuwp"

  # Default to using "_angle" suffix on Android
  if (is_android) {
    angle_libs_suffix = "_angle"
  } else {
    angle_libs_suffix = ""
  }
}

declare_args() {
  angle_enable_d3d9 = is_win && !angle_is_winuwp
  angle_enable_d3d11 = is_win
  angle_enable_gl =
      (ozone_platform_gbm || !is_linux || (use_x11 && !is_chromeos)) &&
      !is_fuchsia && !angle_is_winuwp

  # ANGLE Vulkan backend on Android requires API level 26, i.e. Oreo, due to
  # Vulkan Validation Layers compatibility issues, see http://crrev/c/1405714.
  # Otherwise, API level 24 would have been enough.
  angle_enable_vulkan =
      (is_win && !angle_is_winuwp) || (is_linux && use_x11 && !is_chromeos) ||
      (is_android && ndk_api_level_at_least_26) || is_fuchsia
  angle_enable_null = true
  angle_enable_essl = true
  angle_enable_glsl = true
}

declare_args() {
  angle_enable_gl_null = angle_enable_gl
  angle_enable_hlsl = angle_enable_d3d9 || angle_enable_d3d11
  angle_enable_trace = false

  # Disable the layers in ubsan builds because of really slow builds.
  angle_enable_vulkan_validation_layers =
      angle_enable_vulkan && !is_ubsan && !is_tsan && !is_asan &&
      (is_debug || dcheck_always_on)

  if (angle_enable_vulkan) {
    # Enable Vulkan GPU trace event capability
    angle_enable_vulkan_gpu_trace_events = false

    # Enable custom (cpu-side) secondary command buffers
    angle_enable_custom_vulkan_cmd_buffers = true
  }

  # Disable overlay by default
  angle_enable_overlay = false
}

if (is_win) {
  import("//build/config/win/visual_studio_version.gni")
}

angle_common_configs = [
  angle_root + ":better_linux_stack_traces",
  angle_root + ":extra_warnings",
  angle_root + ":internal_config",
]

angle_remove_configs = [ "//build/config/compiler:default_include_dirs" ]
angle_better_stack_traces =
    (is_debug || dcheck_always_on) && is_linux && !is_asan && !is_cfi

if (is_clang) {
  angle_remove_configs += [ "//build/config/clang:find_bad_constructs" ]

  # Disabled to enable better stack traces.
  if (angle_better_stack_traces) {
    angle_remove_configs += [ "//build/config/gcc:symbol_visibility_hidden" ]
  }
}

set_defaults("angle_executable") {
  configs = angle_common_configs
  public_configs = []
  suppressed_configs = angle_remove_configs
}

set_defaults("angle_shared_library") {
  configs = angle_common_configs
  public_configs = []
  suppressed_configs = angle_remove_configs
}

set_defaults("angle_source_set") {
  configs = angle_common_configs
  public_configs = []
  suppressed_configs = angle_remove_configs
}

set_defaults("angle_static_library") {
  configs = angle_common_configs
  public_configs = []
  suppressed_configs = angle_remove_configs
}

set_defaults("angle_test") {
  configs = angle_common_configs
  public_configs = []
  suppressed_configs = angle_remove_configs
}

template("angle_executable") {
  executable(target_name) {
    forward_variables_from(invoker,
                           "*",
                           [
                             "configs",
                             "suppressed_configs",
                             "visibility",
                           ])

    # Needed because visibility is global.
    forward_variables_from(invoker, [ "visibility" ])

    configs += invoker.configs
    configs -= invoker.suppressed_configs
  }
}

template("angle_shared_library") {
  shared_library(target_name) {
    forward_variables_from(invoker,
                           "*",
                           [
                             "configs",
                             "suppressed_configs",
                             "visibility",
                           ])

    # Needed because visibility is global.
    forward_variables_from(invoker, [ "visibility" ])

    configs += invoker.configs
    configs -= invoker.suppressed_configs

    public_configs += [ angle_root + ":shared_library_public_config" ]

    if (is_android) {
      configs += [ angle_root + ":build_id_config" ]
      configs -= [ "//build/config/android:hide_all_but_jni_onload" ]
    }
  }
}

template("angle_source_set") {
  source_set(target_name) {
    forward_variables_from(invoker,
                           "*",
                           [
                             "configs",
                             "suppressed_configs",
                             "visibility",
                           ])

    # Needed because visibility is global.
    forward_variables_from(invoker, [ "visibility" ])

    configs += invoker.configs
    configs -= invoker.suppressed_configs
  }
}

template("angle_static_library") {
  static_library(target_name) {
    forward_variables_from(invoker,
                           "*",
                           [
                             "configs",
                             "suppressed_configs",
                             "visibility",
                           ])

    # Needed because visibility is global.
    forward_variables_from(invoker, [ "visibility" ])

    configs += invoker.configs
    configs -= invoker.suppressed_configs
  }
}

template("angle_test") {
  test(target_name) {
    forward_variables_from(invoker,
                           "*",
                           [
                             "configs",
                             "suppressed_configs",
                             "visibility",
                           ])

    # Needed because visibility is global.
    forward_variables_from(invoker, [ "visibility" ])

    configs += invoker.configs
    configs -= invoker.suppressed_configs
    configs -= [ angle_root + ":extra_warnings" ]

    if (is_linux && !is_component_build) {
      # Set rpath to find shared libs in a non-component build.
      configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
    }

    if (is_android) {
      configs += [ angle_root + ":build_id_config" ]
      configs -= [ "//build/config/android:hide_all_but_jni" ]
    }
  }
}

kc3-lang/angle/gni

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kc3-lang/angle /gni