Corentin Wallez 30ec4fc626 Fixes to be able to build Dawn inside Skia
Add a dawn_has_build override similarly to angle_has_build that makes
Dawn not depend on Chromium //build if it can avoid it. (this was
previously used for mac_sdk.gni).

Only load the Vulkan Validation Layers' gni if it is enable via
dawn_enable_vulkan_validation_layers.

Fix a GN build warning where the source of dawn_components would be
built twice: for example libdawn_native.MetalBackend.o would be built
once for libdawn_native static and once for libdawn_native shared. Fix
this by making libdawn_native as a static library libdawn_native_static.

Change-Id: Ib8fb72282435eb475d7a11dae0d5a9977572fd57
Bug: chromium:1064305
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18963
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
2020-04-07 19:35:47 +00:00

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# Copyright 2018 The Dawn Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# These are variables that are overridable by projects that include Dawn.
# The values in this file are the defaults for when we are building from
# Dawn's repository.
# Whether we are building from Dawn's repository.
# MUST be unset in other projects (will default to false).
dawn_standalone = true
# True if Dawn can access build/, testing/ and other Chrome folders.
dawn_has_build = true
# Defaults for these are set again in dawn_overrides_with_defaults.gni so that
# users of Dawn don't have to set dirs if they happen to use the same as Dawn.
# The paths to Dawn's dependencies
dawn_jinja2_dir = "//third_party/jinja2"
dawn_glfw_dir = "//third_party/glfw"
dawn_googletest_dir = "//third_party/googletest"
dawn_shaderc_dir = "//third_party/shaderc"
dawn_spirv_tools_dir = "//third_party/SPIRV-Tools"
dawn_spirv_cross_dir = "//third_party/spirv-cross"
dawn_swiftshader_dir = "//third_party/swiftshader"
dawn_vulkan_validation_layers_dir = "//third_party/vulkan-validation-layers"