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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 <vector>
#include "dawn/native/Features.h"
#include "dawn/native/Instance.h"
#include "dawn/native/Toggles.h"
#include "dawn/native/null/DeviceNull.h"
#include "gtest/gtest.h"
namespace dawn {
namespace {
class FeatureTests : public testing::Test {
public:
FeatureTests()
: testing::Test(),
mInstanceBase(native::InstanceBase::Create()),
mPhysicalDevice(mInstanceBase.Get()),
mUnsafePhysicalDevice(mInstanceBase.Get()),
mAdapterBase(&mPhysicalDevice, native::FeatureLevel::Core),
mUnsafeAdapterBase(&mUnsafePhysicalDevice,
native::FeatureLevel::Core,
native::TogglesState(native::ToggleStage::Adapter)
.SetForTesting(native::Toggle::AllowUnsafeAPIs, true, true)) {}
std::vector<wgpu::FeatureName> GetAllFeatureNames() {
std::vector<wgpu::FeatureName> allFeatureNames(kTotalFeaturesCount);
for (size_t i = 0; i < kTotalFeaturesCount; ++i) {
allFeatureNames[i] = FeatureEnumToAPIFeature(static_cast<native::Feature>(i));
}
return allFeatureNames;
}
static constexpr size_t kTotalFeaturesCount = static_cast<size_t>(native::Feature::EnumCount);
protected:
// By default DisallowUnsafeAPIs is enabled in this instance.
Ref<dawn::native::InstanceBase> mInstanceBase;
native::null::PhysicalDevice mPhysicalDevice;
native::null::PhysicalDevice mUnsafePhysicalDevice;
// The adapter that inherit toggles states from the instance, also have DisallowUnsafeAPIs
// enabled.
native::AdapterBase mAdapterBase;
native::AdapterBase mUnsafeAdapterBase;
};
// 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) {
native::Feature notSupportedFeature = static_cast<native::Feature>(i);
std::vector<wgpu::FeatureName> featureNamesWithoutOne = kAllFeatureNames;
featureNamesWithoutOne.erase(featureNamesWithoutOne.begin() + i);
// Test that the default adapter validates features as expected.
{
mPhysicalDevice.SetSupportedFeaturesForTesting(featureNamesWithoutOne);
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 that an adapter with AllowUnsafeApis enabled validates features as expected.
{
mUnsafePhysicalDevice.SetSupportedFeaturesForTesting(featureNamesWithoutOne);
native::Adapter adapterWithoutFeature(&mUnsafeAdapterBase);
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 creating device requiring a supported feature can succeed (with DisallowUnsafeApis adapter
// toggle disabled for experimental features), and Device.GetEnabledFeatures() can return the names
// of the enabled features correctly.
TEST_F(FeatureTests, RequireAndGetEnabledFeatures) {
native::Adapter adapter(&mAdapterBase);
native::Adapter unsafeAdapterAllow(&mUnsafeAdapterBase);
native::FeaturesInfo featuresInfo;
for (size_t i = 0; i < kTotalFeaturesCount; ++i) {
native::Feature feature = static_cast<native::Feature>(i);
wgpu::FeatureName featureName = FeatureEnumToAPIFeature(feature);
wgpu::DeviceDescriptor deviceDescriptor;
deviceDescriptor.requiredFeatures = &featureName;
deviceDescriptor.requiredFeaturesCount = 1;
// Test with the default adapter.
{
native::DeviceBase* deviceBase = native::FromAPI(adapter.CreateDevice(
reinterpret_cast<const WGPUDeviceDescriptor*>(&deviceDescriptor)));
// Creating a device with experimental feature requires the adapter enables
// AllowUnsafeAPIs or disables DisallowUnsafeApis, otherwise expect validation error.
if (featuresInfo.GetFeatureInfo(featureName)->featureState ==
native::FeatureInfo::FeatureState::Experimental) {
ASSERT_EQ(nullptr, deviceBase) << i;
} else {
// Requiring stable features should succeed.
ASSERT_NE(nullptr, deviceBase);
ASSERT_EQ(1u, deviceBase->APIEnumerateFeatures(nullptr));
wgpu::FeatureName enabledFeature;
deviceBase->APIEnumerateFeatures(&enabledFeature);
EXPECT_EQ(enabledFeature, featureName);
deviceBase->APIRelease();
}
}
// Test with the adapter with AllowUnsafeApis toggles enabled, creating device should always
// succeed.
{
native::DeviceBase* deviceBase = native::FromAPI(unsafeAdapterAllow.CreateDevice(
reinterpret_cast<const WGPUDeviceDescriptor*>(&deviceDescriptor)));
ASSERT_NE(nullptr, deviceBase);
ASSERT_EQ(1u, deviceBase->APIEnumerateFeatures(nullptr));
wgpu::FeatureName enabledFeature;
deviceBase->APIEnumerateFeatures(&enabledFeature);
EXPECT_EQ(enabledFeature, featureName);
deviceBase->APIRelease();
}
}
}
} // anonymous namespace
} // namespace dawn