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// Copyright 2019 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 <gtest/gtest.h>
#include "dawn_native/Features.h"
#include "dawn_native/Instance.h"
#include "dawn_native/null/DeviceNull.h"
class FeatureTests : public testing::Test {
public:
FeatureTests()
: testing::Test(),
mInstanceBase(dawn_native::InstanceBase::Create()),
mAdapterBase(mInstanceBase.Get()) {
}
std::vector<wgpu::FeatureName> GetAllFeatureNames() {
std::vector<wgpu::FeatureName> allFeatureNames(kTotalFeaturesCount);
for (size_t i = 0; i < kTotalFeaturesCount; ++i) {
allFeatureNames[i] = FeatureEnumToAPIFeature(static_cast<dawn_native::Feature>(i));
}
return allFeatureNames;
}
static constexpr size_t kTotalFeaturesCount =
static_cast<size_t>(dawn_native::Feature::EnumCount);
protected:
Ref<dawn_native::InstanceBase> mInstanceBase;
dawn_native::null::Adapter mAdapterBase;
};
// Test the creation of a device will fail if the requested feature is not supported on the
// Adapter.
TEST_F(FeatureTests, AdapterWithRequiredFeatureDisabled) {
const std::vector<wgpu::FeatureName> kAllFeatureNames = GetAllFeatureNames();
for (size_t i = 0; i < kTotalFeaturesCount; ++i) {
dawn_native::Feature notSupportedFeature = static_cast<dawn_native::Feature>(i);
std::vector<wgpu::FeatureName> featureNamesWithoutOne = kAllFeatureNames;
featureNamesWithoutOne.erase(featureNamesWithoutOne.begin() + i);
mAdapterBase.SetSupportedFeatures(featureNamesWithoutOne);
dawn_native::Adapter adapterWithoutFeature(&mAdapterBase);
wgpu::DeviceDescriptor deviceDescriptor;
wgpu::FeatureName featureName = FeatureEnumToAPIFeature(notSupportedFeature);
deviceDescriptor.requiredFeatures = &featureName;
deviceDescriptor.requiredFeaturesCount = 1;
WGPUDevice deviceWithFeature = adapterWithoutFeature.CreateDevice(
reinterpret_cast<const WGPUDeviceDescriptor*>(&deviceDescriptor));
ASSERT_EQ(nullptr, deviceWithFeature);
}
}
// Test Device.GetEnabledFeatures() can return the names of the enabled features correctly.
TEST_F(FeatureTests, GetEnabledFeatures) {
dawn_native::Adapter adapter(&mAdapterBase);
for (size_t i = 0; i < kTotalFeaturesCount; ++i) {
dawn_native::Feature feature = static_cast<dawn_native::Feature>(i);
wgpu::FeatureName featureName = FeatureEnumToAPIFeature(feature);
wgpu::DeviceDescriptor deviceDescriptor;
deviceDescriptor.requiredFeatures = &featureName;
deviceDescriptor.requiredFeaturesCount = 1;
dawn_native::DeviceBase* deviceBase = dawn_native::FromAPI(
adapter.CreateDevice(reinterpret_cast<const WGPUDeviceDescriptor*>(&deviceDescriptor)));
ASSERT_EQ(1u, deviceBase->APIEnumerateFeatures(nullptr));
wgpu::FeatureName enabledFeature;
deviceBase->APIEnumerateFeatures(&enabledFeature);
EXPECT_EQ(enabledFeature, featureName);
}
}