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https://github.com/encounter/dawn-cmake.git
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78e4530f59
Common: * The turbocov build target (somehow) never got hooked up to the root CMakeLists.txt file. This is now fixed. macOS: * Emit coverage for 'AppleClang' compiler. * Have run-cts find the tucked-away `llvm-profdata` executable. Windows: * Various fixes for building with clang * Fix turbocov stdout CRLF corruption * Fix bad JSON with backslashes Change-Id: I481cceafe2e72b544e13168172fc1456e5df2005 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/117880 Reviewed-by: Antonio Maiorano <amaiorano@google.com> Kokoro: Ben Clayton <bclayton@google.com> Commit-Queue: Ben Clayton <bclayton@google.com>
119 lines
4.0 KiB
C++
119 lines
4.0 KiB
C++
// Copyright 2021 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <filesystem>
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#include <string>
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#include <tuple>
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#include <utility>
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#include <vector>
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#include "dawn/dawn_proc.h"
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#include "src/dawn/node/binding/Flags.h"
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#include "src/dawn/node/binding/GPU.h"
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#include "tint/tint.h"
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#ifdef DAWN_EMIT_COVERAGE
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extern "C" {
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void __llvm_profile_reset_counters(void);
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void __llvm_profile_set_filename(const char*);
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int __llvm_profile_write_file(void);
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}
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#endif // DAWN_EMIT_COVERAGE
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namespace {
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Napi::Value CreateGPU(const Napi::CallbackInfo& info) {
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const auto& env = info.Env();
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std::tuple<std::vector<std::string>> args;
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auto res = wgpu::interop::FromJS(info, args);
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if (res != wgpu::interop::Success) {
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Napi::Error::New(env, res.error).ThrowAsJavaScriptException();
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return env.Undefined();
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}
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wgpu::binding::Flags flags;
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// Parse out the key=value flags out of the input args array
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for (const auto& arg : std::get<0>(args)) {
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const size_t sep_index = arg.find("=");
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if (sep_index == std::string::npos) {
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Napi::Error::New(env, "Flags expected argument format is <key>=<value>")
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.ThrowAsJavaScriptException();
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return env.Undefined();
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}
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flags.Set(arg.substr(0, sep_index), arg.substr(sep_index + 1));
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}
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// Construct a wgpu::interop::GPU interface, implemented by wgpu::bindings::GPU.
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return wgpu::interop::GPU::Create<wgpu::binding::GPU>(env, std::move(flags));
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}
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#ifdef DAWN_EMIT_COVERAGE
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struct Coverage {
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Coverage() : output_path_{GetOutputPath()} {
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__llvm_profile_set_filename(output_path_.string().c_str());
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}
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~Coverage() { std::filesystem::remove(output_path_); }
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static void Begin(const Napi::CallbackInfo& info) {
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auto* coverage = static_cast<Coverage*>(info.Data());
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std::filesystem::remove(coverage->output_path_);
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__llvm_profile_reset_counters();
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}
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static Napi::Value End(const Napi::CallbackInfo& info) {
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__llvm_profile_write_file();
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auto* coverage = static_cast<Coverage*>(info.Data());
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return Napi::String::New(info.Env(), coverage->output_path_.string().c_str());
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}
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private:
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static std::filesystem::path GetOutputPath() { return std::tmpnam(nullptr); }
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std::filesystem::path output_path_;
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};
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#endif // DAWN_EMIT_COVERAGE
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} // namespace
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// Initialize() initializes the Dawn node module, registering all the WebGPU
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// types into the global object, and adding the 'create' function on the exported
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// object.
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Napi::Object Initialize(Napi::Env env, Napi::Object exports) {
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// Initialize Tint
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tint::Initialize();
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// Set all the Dawn procedure function pointers.
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dawnProcSetProcs(&dawn::native::GetProcs());
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// Register all the interop types
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wgpu::interop::Initialize(env);
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// Export function that creates and returns the wgpu::interop::GPU interface
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exports.Set(Napi::String::New(env, "create"), Napi::Function::New<CreateGPU>(env));
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#ifdef DAWN_EMIT_COVERAGE
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Coverage* coverage = new Coverage();
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auto coverage_provider = Napi::Object::New(env);
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coverage_provider.Set("begin", Napi::Function::New(env, &Coverage::Begin, nullptr, coverage));
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coverage_provider.Set("end", Napi::Function::New(env, &Coverage::End, nullptr, coverage));
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coverage_provider.AddFinalizer([](const Napi::Env&, Coverage* c) { delete c; }, coverage);
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exports.Set(Napi::String::New(env, "coverage"), coverage_provider);
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#endif // DAWN_EMIT_COVERAGE
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return exports;
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}
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NODE_API_MODULE(addon, Initialize)
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