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# Copyright 2019 The Dawn & Tint Authors
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import("../../../scripts/dawn_overrides_with_defaults.gni")
import("//build_overrides/build.gni")
import("${dawn_root}/generator/dawn_generator.gni")
import("${dawn_root}/scripts/dawn_features.gni")
# Use Chromium's dcheck_always_on when available so that we respect it when
# running tests on the GPU builders
if (build_with_chromium) {
import("//build/config/dcheck_always_on.gni")
} else {
dcheck_always_on = false
}
if (build_with_chromium) {
import("//build/config/sanitizers/sanitizers.gni")
} else {
use_fuzzing_engine = false
}
###############################################################################
# Common dawn configs
###############################################################################
config("internal_config") {
include_dirs = [
"${target_gen_dir}/../../../src",
"${dawn_root}/src",
]
defines = []
if (dawn_always_assert || dcheck_always_on || is_debug ||
use_fuzzing_engine) {
defines += [ "DAWN_ENABLE_ASSERTS" ]
}
if (build_with_chromium || use_fuzzing_engine) {
# Does a hard abort when an assertion fails so that fuzzers catch and parse the failure.
# Also call abort() so chrome can dump crash stach in console.
defines += [ "DAWN_ABORT_ON_ASSERT" ]
}
if (use_fuzzing_engine) {
# Disable logging to make fuzzing more efficient.
defines += [ "DAWN_DISABLE_LOGGING" ]
}
if (dawn_enable_d3d11) {
defines += [ "DAWN_ENABLE_BACKEND_D3D11" ]
}
if (dawn_enable_d3d12) {
defines += [ "DAWN_ENABLE_BACKEND_D3D12" ]
}
if (dawn_enable_metal) {
defines += [ "DAWN_ENABLE_BACKEND_METAL" ]
}
if (dawn_enable_null) {
defines += [ "DAWN_ENABLE_BACKEND_NULL" ]
}
if (dawn_enable_opengl) {
defines += [ "DAWN_ENABLE_BACKEND_OPENGL" ]
}
if (dawn_enable_desktop_gl) {
defines += [ "DAWN_ENABLE_BACKEND_DESKTOP_GL" ]
}
if (dawn_enable_opengles) {
defines += [ "DAWN_ENABLE_BACKEND_OPENGLES" ]
}
if (dawn_enable_vulkan) {
defines += [ "DAWN_ENABLE_BACKEND_VULKAN" ]
}
# OS_CHROMEOS cannot be autodetected in runtime and
# cannot be detected with regular compiler macros either.
# Inject it from the build system
if (is_chromeos) {
defines += [ "DAWN_OS_CHROMEOS" ]
}
if (dawn_use_wayland) {
defines += [ "DAWN_USE_WAYLAND" ]
}
if (dawn_use_x11) {
defines += [ "DAWN_USE_X11" ]
}
if (dawn_use_windows_ui) {
defines += [ "DAWN_USE_WINDOWS_UI" ]
}
if (dawn_enable_error_injection) {
defines += [ "DAWN_ENABLE_ERROR_INJECTION" ]
}
# Only internal Dawn targets can use this config, this means only targets in
# this BUILD.gn file and related subdirs.
visibility = [
"${dawn_root}/samples/dawn/*",
"${dawn_root}/src/dawn/*",
]
cflags = []
# Enable more warnings that were found when using Dawn in other projects.
# Add them only when building in standalone because we control which clang
# version we use. Otherwise we risk breaking projects depending on Dawn when
# the use a different clang version.
if (dawn_standalone && is_clang) {
cflags += [
"-Wconditional-uninitialized",
"-Wcstring-format-directive",
"-Wctad-maybe-unsupported",
"-Wc++11-narrowing",
"-Wdeprecated-copy",
"-Wdeprecated-copy-dtor",
"-Wduplicate-enum",
"-Wextra-semi",
"-Wextra-semi-stmt",
"-Wimplicit-fallthrough",
"-Winconsistent-missing-destructor-override",
"-Winvalid-offsetof",
"-Wmissing-field-initializers",
"-Wnon-c-typedef-for-linkage",
"-Wpessimizing-move",
"-Wrange-loop-analysis",
"-Wredundant-move",
"-Wshadow-field",
"-Wstrict-prototypes",
"-Wsuggest-destructor-override",
"-Wsuggest-override",
"-Wtautological-unsigned-zero-compare",
"-Wunreachable-code-aggressive",
"-Wunused-but-set-variable",
"-Wunused-macros",
]
if (is_win) {
cflags += [
# clang-cl doesn't know -pedantic, pass it explicitly to the clang driver
"/clang:-pedantic",
# Allow the use of __uuidof()
"-Wno-language-extension-token",
]
} else {
cflags += [ "-pedantic" ]
}
}
if (!is_clang && is_win) {
# Dawn extends wgpu enums with internal enums.
# MSVC considers these invalid switch values. crbug.com/dawn/397.
cflags += [ "/wd4063" ]
# MSVC things that a switch over all the enum values of an enum class is
# not sufficient to cover all control paths. Turn off this warning so that
# the respective clang warning tells us where to add switch cases
# (otherwise we have to add default: DAWN_UNREACHABLE() that silences clang too)
cflags += [ "/wd4715" ]
# MSVC emits warnings when using constructs deprecated in C++17. Silence
# them until they are fixed.
# TODO(dawn:824): Fix all uses of C++ features deprecated in C++17.
defines += [ "_SILENCE_ALL_CXX17_DEPRECATION_WARNINGS" ]
if (dawn_is_winuwp) {
# /ZW makes sure we don't add calls that are forbidden in UWP.
# and /EHsc is required to be used in combination with it,
# even if it is already added by the windows GN defaults,
# we still add it to make every /ZW paired with a /EHsc
cflags_cc = [
"/ZW:nostdlib",
"/EHsc",
]
}
}
}
###############################################################################
# Common dawn library
###############################################################################
dawn_generator("dawn_version_gen") {
script = "${dawn_root}/generator/dawn_version_generator.py"
args = [
"--dawn-dir",
rebase_path("${dawn_root}", root_build_dir),
]
# We can use the explicit version file if it is generated instead of relying
# on the existence of git.
if (dawn_version_file != "") {
args += [
"--version-file",
rebase_path(dawn_version_file, root_build_dir),
]
}
outputs = [ "src/dawn/common/Version_autogen.h" ]
}
dawn_generator("dawn_gpu_info_gen") {
script = "${dawn_root}/generator/dawn_gpu_info_generator.py"
args = [
"--gpu-info-json",
rebase_path("${dawn_root}/src/dawn/gpu_info.json", root_build_dir),
]
outputs = [
"src/dawn/common/GPUInfo_autogen.h",
"src/dawn/common/GPUInfo_autogen.cpp",
]
}
# This GN file is discovered by all Chromium builds, but common doesn't support
# all of Chromium's OSes so we explicitly make the target visible only on
# systems we know Dawn is able to compile on.
if (is_win || is_linux || is_chromeos || is_mac || is_fuchsia || is_android ||
is_ios) {
static_library("common") {
sources = [
"Alloc.h",
"Assert.cpp",
"Assert.h",
"BitSetIterator.h",
"Compiler.h",
"ConcurrentCache.h",
"Constants.h",
"ContentLessObjectCache.h",
"ContentLessObjectCacheable.h",
"CoreFoundationRef.h",
"DynamicLib.cpp",
"DynamicLib.h",
"FutureUtils.h",
"GPUInfo.cpp",
"GPUInfo.h",
"HashUtils.h",
"IOKitRef.h",
"LinkedList.h",
"Log.cpp",
"Log.h",
"Math.cpp",
"Math.h",
"Mutex.cpp",
"Mutex.h",
"MutexProtected.h",
"NSRef.h",
"NonCopyable.h",
"Numeric.h",
"PlacementAllocated.h",
"Platform.h",
"Preprocessor.h",
"Ref.h",
"RefBase.h",
"RefCounted.cpp",
"RefCounted.h",
"Result.cpp",
"Result.h",
"SerialMap.h",
"SerialQueue.h",
"SerialStorage.h",
"SlabAllocator.cpp",
"SlabAllocator.h",
"StackContainer.h",
"SystemUtils.cpp",
"SystemUtils.h",
"TypeTraits.h",
"TypedInteger.h",
"UnderlyingType.h",
"WeakRef.h",
"WeakRefSupport.cpp",
"WeakRefSupport.h",
"ityp_array.h",
"ityp_bitset.h",
"ityp_span.h",
"ityp_stack_vec.h",
"ityp_vector.h",
"vulkan_platform.h",
"xlib_with_undefs.h",
]
sources += get_target_outputs(":dawn_gpu_info_gen")
public_deps = [
":dawn_gpu_info_gen",
":dawn_version_gen",
]
if (is_apple) {
sources += [
"IOSurfaceUtils.cpp",
"IOSurfaceUtils.h",
]
}
if (is_mac) {
sources += [ "SystemUtils_mac.mm" ]
}
# Note that while this doesn't make `internal_config` a public config of
# Dawn libraries because `:common` is only used as a private deps of Dawn
# targets, so `internal_config` doesn't leak out of Dawn.
public_configs = [ ":internal_config" ]
deps = [
"${dawn_root}/include/dawn:cpp_headers",
"${dawn_root}/include/dawn:headers",
]
if (is_win) {
sources += [
"WindowsUtils.cpp",
"WindowsUtils.h",
"windows_with_undefs.h",
]
}
if (dawn_enable_vulkan) {
public_deps += [ "${dawn_vulkan_headers_dir}:vulkan_headers" ]
}
if (is_android) {
libs = [ "log" ]
}
}
}