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// Copyright 2023 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.
#include <memory>
#include <utility>
#include "dawn/common/GPUInfo.h"
#include "dawn/dawn_proc.h"
#include "dawn/native/DawnNative.h"
#include "dawn/tests/MockCallback.h"
#include "dawn/webgpu_cpp.h"
#include "gtest/gtest.h"
namespace dawn {
namespace {
using testing::_;
using testing::MockCallback;
using testing::SaveArg;
class AdapterCreationTest : public ::testing::Test {
protected:
void SetUp() override {
dawnProcSetProcs(&native::GetProcs());
{
auto nativeInstance = std::make_unique<native::Instance>();
for (native::Adapter& nativeAdapter : nativeInstance->EnumerateAdapters()) {
anyAdapterAvailable = true;
wgpu::AdapterProperties properties;
nativeAdapter.GetProperties(&properties);
if (properties.compatibilityMode) {
continue;
}
swiftShaderAvailable |=
gpu_info::IsGoogleSwiftshader(properties.vendorID, properties.deviceID);
discreteGPUAvailable |= properties.adapterType == wgpu::AdapterType::DiscreteGPU;
integratedGPUAvailable |=
properties.adapterType == wgpu::AdapterType::IntegratedGPU;
}
}
instance = wgpu::CreateInstance();
}
void TearDown() override {
instance = nullptr;
dawnProcSetProcs(nullptr);
}
wgpu::Instance instance;
bool anyAdapterAvailable = false;
bool swiftShaderAvailable = false;
bool discreteGPUAvailable = false;
bool integratedGPUAvailable = false;
};
// Test that requesting the default adapter works
TEST_F(AdapterCreationTest, DefaultAdapter) {
wgpu::RequestAdapterOptions options = {};
MockCallback<WGPURequestAdapterCallback> cb;
WGPUAdapter cAdapter = nullptr;
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this))
.WillOnce(SaveArg<1>(&cAdapter));
instance.RequestAdapter(&options, cb.Callback(), cb.MakeUserdata(this));
wgpu::Adapter adapter = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter != nullptr, anyAdapterAvailable);
}
// Test that passing nullptr for the options gets the default adapter
TEST_F(AdapterCreationTest, NullGivesDefaultAdapter) {
wgpu::RequestAdapterOptions options = {};
MockCallback<WGPURequestAdapterCallback> cb;
WGPUAdapter cAdapter = nullptr;
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this))
.WillOnce(SaveArg<1>(&cAdapter));
instance.RequestAdapter(&options, cb.Callback(), cb.MakeUserdata(this));
wgpu::Adapter adapter = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter != nullptr, anyAdapterAvailable);
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this + 1))
.WillOnce(SaveArg<1>(&cAdapter));
instance.RequestAdapter(nullptr, cb.Callback(), cb.MakeUserdata(this + 1));
wgpu::Adapter adapter2 = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter2 != nullptr, anyAdapterAvailable);
}
// Test that requesting the fallback adapter returns SwiftShader.
TEST_F(AdapterCreationTest, FallbackAdapter) {
wgpu::RequestAdapterOptions options = {};
options.forceFallbackAdapter = true;
MockCallback<WGPURequestAdapterCallback> cb;
WGPUAdapter cAdapter = nullptr;
if (swiftShaderAvailable) {
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this))
.WillOnce(SaveArg<1>(&cAdapter));
} else {
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Unavailable, nullptr, _, this))
.WillOnce(SaveArg<1>(&cAdapter));
}
instance.RequestAdapter(&options, cb.Callback(), cb.MakeUserdata(this));
wgpu::Adapter adapter = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter != nullptr, swiftShaderAvailable);
if (adapter != nullptr) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.adapterType, wgpu::AdapterType::CPU);
EXPECT_TRUE(gpu_info::IsGoogleSwiftshader(properties.vendorID, properties.deviceID));
}
}
// Test that requesting a high performance GPU works
TEST_F(AdapterCreationTest, PreferHighPerformance) {
wgpu::RequestAdapterOptions options = {};
options.powerPreference = wgpu::PowerPreference::HighPerformance;
MockCallback<WGPURequestAdapterCallback> cb;
WGPUAdapter cAdapter = nullptr;
if (anyAdapterAvailable) {
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this))
.WillOnce(SaveArg<1>(&cAdapter));
} else {
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Unavailable, nullptr, _, this))
.WillOnce(SaveArg<1>(&cAdapter));
}
instance.RequestAdapter(&options, cb.Callback(), cb.MakeUserdata(this));
wgpu::Adapter adapter = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter != nullptr, anyAdapterAvailable);
if (discreteGPUAvailable) {
wgpu::AdapterProperties properties;
wgpu::DawnAdapterPropertiesPowerPreference powerPreferenceProperties;
properties.nextInChain = &powerPreferenceProperties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.adapterType, wgpu::AdapterType::DiscreteGPU);
EXPECT_EQ(powerPreferenceProperties.powerPreference, options.powerPreference);
}
}
// Test that requesting a low power GPU works
TEST_F(AdapterCreationTest, PreferLowPower) {
wgpu::RequestAdapterOptions options = {};
options.powerPreference = wgpu::PowerPreference::LowPower;
MockCallback<WGPURequestAdapterCallback> cb;
WGPUAdapter cAdapter = nullptr;
if (anyAdapterAvailable) {
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this))
.WillOnce(SaveArg<1>(&cAdapter));
} else {
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Unavailable, nullptr, _, this))
.WillOnce(SaveArg<1>(&cAdapter));
}
instance.RequestAdapter(&options, cb.Callback(), cb.MakeUserdata(this));
wgpu::Adapter adapter = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter != nullptr, anyAdapterAvailable);
if (integratedGPUAvailable) {
wgpu::AdapterProperties properties;
wgpu::DawnAdapterPropertiesPowerPreference powerPreferenceProperties;
properties.nextInChain = &powerPreferenceProperties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.adapterType, wgpu::AdapterType::IntegratedGPU);
EXPECT_EQ(powerPreferenceProperties.powerPreference, options.powerPreference);
}
}
// Test that requesting a Compatibility adapter is supported.
TEST_F(AdapterCreationTest, Compatibility) {
wgpu::RequestAdapterOptions options = {};
options.compatibilityMode = true;
MockCallback<WGPURequestAdapterCallback> cb;
WGPUAdapter cAdapter = nullptr;
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this))
.WillOnce(SaveArg<1>(&cAdapter));
instance.RequestAdapter(&options, cb.Callback(), cb.MakeUserdata(this));
wgpu::Adapter adapter = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter != nullptr, anyAdapterAvailable);
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_TRUE(properties.compatibilityMode);
}
// Test that requesting a Non-Compatibility adapter is supported and is default.
TEST_F(AdapterCreationTest, NonCompatibility) {
wgpu::RequestAdapterOptions options = {};
MockCallback<WGPURequestAdapterCallback> cb;
WGPUAdapter cAdapter = nullptr;
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this))
.WillOnce(SaveArg<1>(&cAdapter));
instance.RequestAdapter(&options, cb.Callback(), cb.MakeUserdata(this));
wgpu::Adapter adapter = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter != nullptr, anyAdapterAvailable);
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_FALSE(properties.compatibilityMode);
}
// Test that GetInstance() returns the correct Instance.
TEST_F(AdapterCreationTest, GetInstance) {
wgpu::RequestAdapterOptions options = {};
MockCallback<WGPURequestAdapterCallback> cb;
WGPUAdapter cAdapter = nullptr;
EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, _, nullptr, this))
.WillOnce(SaveArg<1>(&cAdapter));
instance.RequestAdapter(&options, cb.Callback(), cb.MakeUserdata(this));
wgpu::Adapter adapter = wgpu::Adapter::Acquire(cAdapter);
EXPECT_EQ(adapter != nullptr, anyAdapterAvailable);
EXPECT_EQ(adapter.GetInstance().Get(), instance.Get());
}
} // anonymous namespace
} // namespace dawn