Vk: implement Device feature enablement.

This was way more pain that initially expected, especially in regards to
preserving externally-specified pNext chains without writing to them in
any way.

doc/developers.dox

@@ -868,7 +868,12 @@ pointers on a class that needs them:
         before. For some reason the Khronos validation layer doesn't check
         `sType` fields in this query so it's easy to make a hard-to-discover
         error
-9.  Add a link to the new Feature structure in `doc/vulkan-mapping.dox`
+9.  Extend @ref Vk::DeviceCreateInfo::setEnabledFeatures():
+    -   a similar addition as above, connecting the structure to the chain at
+        correct place,
+    -   to the correct place in the structureChainDisconnect() call,
+    -   and function documentation again
+10. Add a link to the new Feature structure in `doc/vulkan-mapping.dox`
 
 @section developers-dependency Checklist for adding, removing or updating a dependency
 

doc/snippets/MagnumVk.cpp

@@ -34,6 +34,7 @@
 #include "Magnum/Vk/CommandBuffer.h"
 #include "Magnum/Vk/CommandPoolCreateInfo.h"
 #include "Magnum/Vk/DeviceCreateInfo.h"
+#include "Magnum/Vk/DeviceFeatures.h"
 #include "Magnum/Vk/DeviceProperties.h"
 #include "Magnum/Vk/Extensions.h"
 #include "Magnum/Vk/ExtensionProperties.h"
@@ -214,6 +215,22 @@ Vk::Device device{instance, Vk::DeviceCreateInfo{DOXYGEN_IGNORE(properties)}
 /* [Device-creation-extensions] */
 }
 
+{
+Vk::Instance instance;
+Vk::DeviceProperties properties{NoCreate};
+using namespace Containers::Literals;
+/* [Device-creation-features] */
+Vk::Device device{instance, Vk::DeviceCreateInfo{DOXYGEN_IGNORE(properties)}
+    DOXYGEN_IGNORE()
+    .setEnabledFeatures(
+        Vk::DeviceFeature::IndexTypeUint8|
+        Vk::DeviceFeature::SamplerAnisotropy|
+        Vk::DeviceFeature::GeometryShader|
+        DOXYGEN_IGNORE(Vk::DeviceFeature{}))
+};
+/* [Device-creation-features] */
+}
+
 {
 Vk::Instance instance;
 using namespace Containers::Literals;
@@ -227,6 +244,11 @@ if(extensions.isSupported<Vk::Extensions::EXT::index_type_uint8>())
 if(extensions.isSupported("VK_NV_mesh_shader"_s))
     info.addEnabledExtensions({"VK_NV_mesh_shader"_s});
 DOXYGEN_IGNORE()
+info.setEnabledFeatures(properties.features() & // mask away unsupported ones
+    (Vk::DeviceFeature::IndexTypeUint8|
+     Vk::DeviceFeature::SamplerAnisotropy|
+     Vk::DeviceFeature::GeometryShader|
+     DOXYGEN_IGNORE(Vk::DeviceFeature{})));
 /* [Device-creation-check-supported] */
 }
 

doc/vulkan-wrapping.dox

@@ -133,7 +133,24 @@ care to not clash with values and pointers already set:
 Similarly to the @ref NoInit constructors, constructing a `Vk::*CreateInfo`
 from the underlying Vulkan structure is guaranteed to not allocate as well ---
 only a shallow copy of the top-level structure is made and internal pointers,
-if any, keep pointing to the originating data.
+if any, keep pointing to the originating data. That approach has some
+implications:
+
+-   The user is responsible for ensuring those stay in scope for as long as
+    the structure is needed
+-   When calling Magnum's own APIs on the instance that was constructed from a
+    raw Vulkan structure, the pointed-to-data aren't touched in any way (which
+    means they can be @cpp const @ce), however they might get abandoned and the
+    top-level structure pointed elsewhere.
+-   Existing `pNext` chains are preserved. Calling Magnum's own APIs may result
+    in new entries added to the chain, but always at the front (again in order
+    to allow the pointed-to-data be @cpp const @ce). It's a responsibility of
+    the user to ensure no conflicting or duplicate entries are present
+    in the original chain when mixing it with Magnum's APIs.
+
+It's also possible to add new structures to the `pNext` chain of an existing
+instance. However, to prevent conflicts with Magnum which inserts at the front,
+new raw structures should be always appended at the end of the chain.
 
 @section vulkan-wrapping-optimizing-properties Optimizing instance and device property retrieval
 

src/Magnum/Vk/Device.cpp

@@ -39,6 +39,7 @@
 #include "Magnum/Vk/Assert.h"
 #include "Magnum/Vk/Handle.h"
 #include "Magnum/Vk/Instance.h"
+#include "Magnum/Vk/DeviceFeatures.h"
 #include "Magnum/Vk/DeviceProperties.h"
 #include "Magnum/Vk/Extensions.h"
 #include "Magnum/Vk/ExtensionProperties.h"
@@ -46,15 +47,46 @@
 #include "Magnum/Vk/Version.h"
 #include "Magnum/Vk/Implementation/Arguments.h"
 #include "Magnum/Vk/Implementation/InstanceState.h"
+#include "Magnum/Vk/Implementation/DeviceFeatures.h"
 #include "Magnum/Vk/Implementation/DeviceState.h"
+#include "Magnum/Vk/Implementation/structureHelpers.h"
 #include "MagnumExternal/Vulkan/flextVkGlobal.h"
 
 namespace Magnum { namespace Vk {
 
+/* In any other CreateInfo, we could simply populate a pNext chain of a
+   supported / enabled subset of all structures that might ever get used and
+   then only populate their contents without having to fumble with the linked
+   list connections. That's unfortunately not possible with DeviceCreateInfo,
+   because *don't know yet* what extensions will get enabled. So for everything
+   that might live on the pNext chain (currently just features, but over time
+   it'll be also multi-device setup, swapchain, ...) we need to:
+
+   -    ensure we're not stomping on something in pNext that's defined
+        externally (when constructing DeviceCreateInfo from a raw
+        VkDeviceCreateInfo or when the user directly adds something to pNext),
+        thus only connecting things to _info.pNext, not anywhere else as that
+        might be const memory
+    -   ensure the externally supplied pNext pointers are not lost when we
+        connect our own things
+    -   ensure when e.g. setEnabledFeatures() gets called twice, we don't
+        connect the same structure chain again, ending up with a loop. Which
+        means going through the existing chain and breaking up links that point
+        to the structures we're going to reconnect, this isn't really fast but
+        also it's not really common to call the same API more than once. This
+        also assumes that our structures are pointed to only by our structures
+        again and not something external (that might be const memory again).
+
+*/
 struct DeviceCreateInfo::State {
     Containers::Array<Containers::String> ownedStrings;
     Containers::Array<const char*> extensions;
 
+    VkPhysicalDeviceFeatures2 features2{};
+    Implementation::DeviceFeatures features{};
+    DeviceFeatures enabledFeatures;
+    void* firstEnabledFeature{};
+
     Containers::String disabledExtensionsStorage;
     Containers::Array<Containers::StringView> disabledExtensions;
     Containers::Array<VkDeviceQueueCreateInfo> queues;
@@ -133,11 +165,15 @@ DeviceCreateInfo::DeviceCreateInfo(DeviceProperties& deviceProperties, const Ext
     /* Conservatively populate the device properties.
        - In case the DeviceCreateInfo(DeviceProperties&&) constructor is used,
          it'll get overwritten straight away with a populated instance.
-       - In case the addQueues(QueueFlags) API is not used and DeviceCreateInfo
-         isn't subsequently moved to the Device, it'll never get touched again
-         and Device will wrap() its own.
-       - In case addQueues(QueueFlags) is used it'll get populated and then
-         possibly discarded if it isn't subsequently moved to the Device. */
+       - In case neither the addQueues(QueueFlags) API (which queries the
+         properties for queue family index) nor the setEnabledFeatures() API
+         (which needs to check where to connect based on version and KHR_gpdp2
+         presence) is not used and DeviceCreateInfo isn't subsequently moved to
+         the Device, it'll never get touched again and Device will wrap() its
+         own.
+       - In case addQueues(QueueFlags) / setEnabledFeatures() is used it'll get
+         populated and then possibly discarded if it isn't subsequently moved
+         to the Device. */
     _state->properties = DeviceProperties::wrap(*deviceProperties._instance, deviceProperties._handle);
 }
 
@@ -256,6 +292,168 @@ DeviceCreateInfo&& DeviceCreateInfo::addEnabledExtensions(const std::initializer
     return std::move(addEnabledExtensions(extensions));
 }
 
+namespace {
+
+template<class T> void structureConnectIfUsed(Containers::Reference<const void*>& next, void*& firstFeatureStructure, T& structure, VkStructureType type) {
+    if(structure.sType) {
+        if(!firstFeatureStructure) firstFeatureStructure = &structure;
+        Implementation::structureConnect(next, structure, type);
+    }
+}
+
+}
+
+DeviceCreateInfo& DeviceCreateInfo::setEnabledFeatures(const DeviceFeatures& features) & {
+    /* Remember the features to pass them to Device later */
+    _state->enabledFeatures = features;
+
+    /* Clear any existing pointers to the feature structure chain. This needs
+       to be done in order to avoid pointing to them again from a different
+       place, creating a loop. Additionally, the pNext chain may contain
+       additional structures after the features and we don't want to lose those
+       -- so it's not possible to simply disconnect and clear them, but we need
+       to first find and preserve what is connected after.
+
+       To avoid quadratic complexity by going through each of the feature
+       structs and attempting to find it in the pNext chain,
+       _state->firstEnabledFeature remembers the first structure in the chain
+       that was enabled previously. We find what structure points to it and
+       then the structureDisconnectChain() goes through the chain and repoints
+       the structure to the first structure that's not from the list, thus
+       preserving the remaining part of the chain. */
+    _info.pEnabledFeatures = nullptr;
+    if(_state->firstEnabledFeature) {
+        const void** const pointerToFirst = Implementation::structureFind(_info.pNext, *static_cast<const VkBaseInStructure*>(_state->firstEnabledFeature));
+        if(pointerToFirst) Implementation::structureDisconnectChain(*pointerToFirst, {
+            /* This list needs to be kept in sync with
+               Implementation::DeviceFeatures, keeping the same order (however
+               there's a test that should catch *all* errors with forgotten or
+               wrongly ordered structures) */
+            _state->features2,
+            _state->features.protectedMemory,
+            _state->features.multiview,
+            _state->features.shaderDrawParameters,
+            _state->features.textureCompressionAstcHdr,
+            _state->features.shaderFloat16Int8,
+            _state->features._16BitStorage,
+            _state->features.imagelessFramebuffer,
+            _state->features.variablePointers,
+            _state->features.samplerYcbcrConversion,
+            _state->features.descriptorIndexing,
+            _state->features.shaderSubgroupExtendedTypes,
+            _state->features._8BitStorage,
+            _state->features.shaderAtomicInt64,
+            _state->features.timelineSemaphore,
+            _state->features.vulkanMemoryModel,
+            _state->features.scalarBlockLayout,
+            _state->features.separateDepthStencilLayouts,
+            _state->features.uniformBufferStandardLayout,
+            _state->features.bufferDeviceAddress,
+            _state->features.hostQueryReset,
+            _state->features.indexTypeUint8
+        });
+
+        _state->firstEnabledFeature = {};
+    }
+
+    /* Now that the feature chain is disconnected from the pNext chain, we can
+       safely clear it */
+    _state->features2 = {};
+    _state->features = {};
+
+    /* If there's no features to enable, exit */
+    if(!features) return *this;
+
+    /* Otherwise, first set enabled bits in each structure and remember which
+       structures have bits set */
+    #define _c(value, field)                                                \
+        if(features & DeviceFeature::value) {                               \
+            _state->features2.sType = VkStructureType(1);                   \
+            _state->features2.features.field = VK_TRUE;                     \
+        }
+    #define _cver(value, field, suffix, version)                            \
+        if(features & DeviceFeature::value) {                               \
+            _state->features.suffix.sType = VkStructureType(1);             \
+            _state->features.suffix.field = VK_TRUE;                        \
+        }
+    #define _cext _cver
+    #include "Magnum/Vk/Implementation/deviceFeatureMapping.hpp"
+    #undef _c
+    #undef _cver
+    #undef _cext
+
+    /* First handle compatibility with unextended Vulkan 1.0 -- there we can
+       only add VkPhysicalDeviceFeatures to pEnabledFeatures and have to ignore
+       the rest. */
+    if(!_state->properties.canUseFeatures2ForDeviceCreation()) {
+        /* Only point to the structure if something was actually enabled there.
+           If not, there's no point in referencing it. */
+        if(_state->features2.sType)
+            _info.pEnabledFeatures = &_state->features2.features;
+        return *this;
+    }
+
+    /* Otherwise we can start from _info.pNext */
+    Containers::Reference<const void*> next = _info.pNext;
+
+    /* Connect together all structures that have something enabled. That
+       includes the VkPhysicalDeviceFeatures2 -- if it doesn't have anything
+       enabled, it's not included in the chain at all. The
+       _state->firstEnabledFeature pointer points to the first enabled feature
+       which will be useful to clean up the previous state if
+       setEnabledFeatures() gets called again. */
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features2, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.protectedMemory, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.multiview, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.shaderDrawParameters, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_DRAW_PARAMETERS_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.textureCompressionAstcHdr, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXTURE_COMPRESSION_ASTC_HDR_FEATURES_EXT);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.shaderFloat16Int8, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features._16BitStorage, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.imagelessFramebuffer, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGELESS_FRAMEBUFFER_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.variablePointers, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTERS_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.samplerYcbcrConversion, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.descriptorIndexing, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DESCRIPTOR_INDEXING_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.shaderSubgroupExtendedTypes, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SUBGROUP_EXTENDED_TYPES_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features._8BitStorage, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_8BIT_STORAGE_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.shaderAtomicInt64, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_INT64_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.timelineSemaphore, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TIMELINE_SEMAPHORE_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.vulkanMemoryModel, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_MEMORY_MODEL_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.scalarBlockLayout, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SCALAR_BLOCK_LAYOUT_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.separateDepthStencilLayouts, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SEPARATE_DEPTH_STENCIL_LAYOUTS_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.uniformBufferStandardLayout, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_UNIFORM_BUFFER_STANDARD_LAYOUT_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.bufferDeviceAddress, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BUFFER_DEVICE_ADDRESS_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.hostQueryReset, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_HOST_QUERY_RESET_FEATURES);
+    structureConnectIfUsed(next, _state->firstEnabledFeature,
+        _state->features.indexTypeUint8, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_INDEX_TYPE_UINT8_FEATURES_EXT);
+
+    return *this;
+}
+
+DeviceCreateInfo&& DeviceCreateInfo::setEnabledFeatures(const DeviceFeatures& features) && {
+    return std::move(setEnabledFeatures(features));
+}
+
 DeviceCreateInfo& DeviceCreateInfo::addQueues(const UnsignedInt family, const Containers::ArrayView<const Float> priorities, const Containers::ArrayView<const Containers::Reference<Queue>> output) & {
     CORRADE_ASSERT(!priorities.empty(), "Vk::DeviceCreateInfo::addQueues(): at least one queue priority has to be specified", *this);
     CORRADE_ASSERT(output.size() == priorities.size(), "Vk::DeviceCreateInfo::addQueues(): expected" << priorities.size() << "outuput queue references but got" << output.size(), *this);
@@ -331,19 +529,19 @@ DeviceCreateInfo&& DeviceCreateInfo::addQueues(const VkDeviceQueueCreateInfo& in
     return std::move(addQueues(info));
 }
 
-Device Device::wrap(Instance& instance, const VkDevice handle, const Version version, const Containers::ArrayView<const Containers::StringView> enabledExtensions, const HandleFlags flags) {
+Device Device::wrap(Instance& instance, const VkDevice handle, const Version version, const Containers::ArrayView<const Containers::StringView> enabledExtensions, const DeviceFeatures& enabledFeatures, const HandleFlags flags) {
     /* Compared to the constructor nothing is printed here as it would be just
        repeating what was passed to the constructor */
     Device out{NoCreate};
     out._handle = handle;
     out._flags = flags;
     out.initializeExtensions(enabledExtensions);
-    out.initialize(instance, version);
+    out.initialize(instance, version, enabledFeatures);
     return out;
 }
 
-Device Device::wrap(Instance& instance, const VkDevice handle, const Version version, const std::initializer_list<Containers::StringView> enabledExtensions, const HandleFlags flags) {
-    return wrap(instance, handle, version, Containers::arrayView(enabledExtensions), flags);
+Device Device::wrap(Instance& instance, const VkDevice handle, const Version version, const std::initializer_list<Containers::StringView> enabledExtensions, const DeviceFeatures& enabledFeatures, const HandleFlags flags) {
+    return wrap(instance, handle, version, Containers::arrayView(enabledExtensions), enabledFeatures, flags);
 }
 
 Device::Device(Instance& instance, const DeviceCreateInfo& info): Device{instance, info, DeviceProperties::wrap(instance, info._physicalDevice)} {}
@@ -379,12 +577,20 @@ Device::Device(Instance& instance, const DeviceCreateInfo& info, DevicePropertie
             for(std::size_t i = 0, max = info->enabledExtensionCount; i != max; ++i)
                 Debug{} << "   " << info->ppEnabledExtensionNames[i];
         }
+
+        if(info._state->enabledFeatures) {
+            Debug{} << "Enabled features:";
+            for(std::size_t i = 0, max = DeviceFeatures::Size*64; i != max; ++i) {
+                if(!(info._state->enabledFeatures & DeviceFeature(i))) continue;
+                Debug{} << "   " << DeviceFeature(i);
+            }
+        }
     }
 
     MAGNUM_VK_INTERNAL_ASSERT_SUCCESS(instance->CreateDevice(info._physicalDevice, info, nullptr, &_handle));
 
     initializeExtensions<const char*>({info->ppEnabledExtensionNames, info->enabledExtensionCount});
-    initialize(instance, version);
+    initialize(instance, version, info._state->enabledFeatures);
 
     /* Extension-dependent state is initialized, now we can retrieve the queues
        from the device and save them to the outputs specified in addQueues().
@@ -467,9 +673,10 @@ template<class T> void Device::initializeExtensions(const Containers::ArrayView<
     }
 }
 
-void Device::initialize(Instance& instance, const Version version) {
-    /* Init version, function pointers */
+void Device::initialize(Instance& instance, const Version version, const DeviceFeatures& enabledFeatures) {
+    /* Init version, features, function pointers */
     _version = version;
+    _enabledFeatures = enabledFeatures;
     flextVkInitDevice(_handle, &_functionPointers, instance->GetDeviceProcAddr);
 
     /* Set up extension-dependent functionality */

src/Magnum/Vk/Device.h

@@ -31,6 +31,7 @@
  */
 
 #include <cstddef>
+#include <Corrade/Containers/BigEnumSet.h>
 #include <Corrade/Containers/Pointer.h>
 
 #include "Magnum/Tags.h"
@@ -90,8 +91,24 @@ checked with @ref isExtensionEnabled().
 
 @snippet MagnumVk.cpp Device-creation-extensions
 
-Usually you'll be first checking for extension availability instead, which is
-again accessible through the @ref DeviceProperties instance:
+In addition to extensions, you'll be usually enabling features as well. These
+are all exposed in a giant @ref DeviceFeatures enum and you can simply OR them
+together. Internally, those get translated to @type_vk{PhysicalDeviceFeatures2}
+and related structures, features that are not exposed in the enum can be
+enabled by adding a corresponding structure to the `pNext` chain. As with
+extensions, the set of enabled features can be later checked with
+@ref enabledFeatures().
+
+@snippet MagnumVk.cpp Device-creation-features
+
+However, usually you'll be checking for extension and feature availability
+first, which is doable through
+@ref DeviceProperties::enumerateExtensionProperties() and
+@ref ExtensionProperties::isSupported() for extensions, and
+@ref DeviceProperties::features() for features. In case of features you can
+make use of the enum set operations and simply mask away features that are not
+available --- however note that some features also require an extension to be
+explicitly enabled.
 
 @snippet MagnumVk.cpp Device-creation-check-supported
 
@@ -154,14 +171,18 @@ class MAGNUM_VK_EXPORT Device {
          *      device
          * @param enabledExtensions Extensions that are assumed to be enabled
          *      on the device
+         * @param enabledFeatures Features that are assumed to be enabled on
+         *      the device
          * @param flags         Handle flags
          *
          * The @p handle is expected to be originating from @p instance. The
-         * @p version and @p enabledExtensions parameters populate internal
-         * info about supported version and extensions and will be reflected in
-         * @ref isVersionSupported() and @ref isExtensionEnabled(), among other
-         * things. If @p enabledExtensions is empty, the device will behave as
-         * if no extensions were enabled.
+         * @p version, @p enabledExtensions and @p enabledFeatures parameters
+         * populate internal info about supported version, enabled extensions
+         * and enabled features and will be reflected in
+         * @ref isVersionSupported(), @ref isExtensionEnabled() and
+         * @ref enabledFeatures(), among other things. If @p enabledExtensions
+         * / @p enabledFeatures is empty, the device will behave as if no
+         * extensions / no features were enabled.
          *
          * Note that this function retrieves all device-specific Vulkan
          * function pointers, which is a relatively costly operation. It's thus
@@ -173,10 +194,10 @@ class MAGNUM_VK_EXPORT Device {
          * behavior.
          * @see @ref release()
          */
-        static Device wrap(Instance& instance, VkDevice handle, Version version, Containers::ArrayView<const Containers::StringView> enabledExtensions, HandleFlags flags = {});
+        static Device wrap(Instance& instance, VkDevice handle, Version version, Containers::ArrayView<const Containers::StringView> enabledExtensions, const DeviceFeatures& enabledFeatures, HandleFlags flags = {});
 
         /** @overload */
-        static Device wrap(Instance& instance, VkDevice handle, Version version, std::initializer_list<Containers::StringView> enabledExtensions, HandleFlags flags = {});
+        static Device wrap(Instance& instance, VkDevice handle, Version version, std::initializer_list<Containers::StringView> enabledExtensions, const DeviceFeatures& enabledFeatures, HandleFlags flags = {});
 
         /**
          * @brief Constructor
@@ -296,6 +317,13 @@ class MAGNUM_VK_EXPORT Device {
         /** @overload */
         bool isExtensionEnabled(const Extension& extension) const;
 
+        /**
+         * @brief Features enabled on the device
+         *
+         * @see @ref DeviceProperties::features()
+         */
+        const DeviceFeatures& enabledFeatures() const { return _enabledFeatures; }
+
         /**
          * @brief Device-specific Vulkan function pointers
          *
@@ -345,7 +373,7 @@ class MAGNUM_VK_EXPORT Device {
         explicit Device(Instance& isntance, const DeviceCreateInfo&, DeviceProperties&&);
 
         template<class T> MAGNUM_VK_LOCAL void initializeExtensions(Containers::ArrayView<const T> enabledExtensions);
-        MAGNUM_VK_LOCAL void initialize(Instance& instance, Version version);
+        MAGNUM_VK_LOCAL void initialize(Instance& instance, Version version, const DeviceFeatures& enabledFeatures);
 
         MAGNUM_VK_LOCAL static void getQueueImplementationDefault(Device& self, const VkDeviceQueueInfo2& info, VkQueue& queue);
         MAGNUM_VK_LOCAL static void getQueueImplementation11(Device& self, const VkDeviceQueueInfo2& info, VkQueue& queue);
@@ -354,6 +382,7 @@ class MAGNUM_VK_EXPORT Device {
         HandleFlags _flags;
         Version _version;
         Math::BoolVector<Implementation::ExtensionCount> _enabledExtensions;
+        DeviceFeatures _enabledFeatures;
         Containers::Pointer<DeviceProperties> _properties;
         Containers::Pointer<Implementation::DeviceState> _state;
 

src/Magnum/Vk/DeviceCreateInfo.h

@@ -200,6 +200,65 @@ class MAGNUM_VK_EXPORT DeviceCreateInfo {
             return std::move(*this);
         }
 
+        /**
+         * @brief Add enabled device features
+         * @return Reference to self (for method chaining)
+         *
+         * All enabled features are expected to be reported as supported by the
+         * device and either their core version supported by the device or the
+         * corresponding extension enabled via @ref addEnabledExtensions(). Use
+         * @ref DeviceProperties::features() to check for feature support.
+         *
+         * Depending on what features are enabled, a subset of the following
+         * structures will be added to the `pNext` chain:
+         *
+         * -    @type_vk_keyword{PhysicalDeviceProtectedMemoryFeatures} (Vulkan
+         *      1.1)
+         * -    @type_vk_keyword{PhysicalDeviceMultiviewFeatures} (Vulkan 1.1,
+         *      @vk_extension{KHR,multiview})
+         * -    @type_vk_keyword{PhysicalDeviceShaderDrawParametersFeatures}
+         *      (Vulkan 1.1, @vk_extension{KHR,shader_draw_parameters})
+         * -    @type_vk_keyword{PhysicalDeviceTextureCompressionASTCHDRFeaturesEXT}
+         *      (@vk_extension{EXT,texture_compression_astc_hdr})
+         * -    @type_vk_keyword{PhysicalDeviceShaderFloat16Int8Features}
+         *      (Vulkan 1.2, @vk_extension{KHR,shader_float16_int8})
+         * -    @type_vk_keyword{PhysicalDevice16BitStorageFeatures} (Vulkan
+         *      1.1, @vk_extension{KHR,16bit_storage})
+         * -    @type_vk_keyword{PhysicalDeviceImagelessFramebufferFeatures}
+         *      (Vulkan 1.2, @vk_extension{KHR,imageless_framebuffer})
+         * -    @type_vk_keyword{PhysicalDeviceVariablePointersFeatures}
+         *      (Vulkan 1.1, @vk_extension{KHR,variable_pointers})
+         * -    @type_vk_keyword{PhysicalDeviceSamplerYcbcrConversionFeatures}
+         *      (Vulkan 1.1, @vk_extension{KHR,sampler_ycbcr_conversion})
+         * -    @type_vk_keyword{PhysicalDeviceDescriptorIndexingFeatures}
+         *      (Vulkan 1.2, @vk_extension{EXT,descriptor_indexing})
+         * -    @type_vk_keyword{PhysicalDeviceShaderSubgroupExtendedTypesFeatures}
+         *      (Vulkan 1.2, @vk_extension{KHR,shader_subgroup_extended_types})
+         * -    @type_vk_keyword{PhysicalDevice8BitStorageFeatures} (Vulkan
+         *      1.2, @vk_extension{KHR,8bit_storage})
+         * -    @type_vk_keyword{PhysicalDeviceShaderAtomicInt64Features}
+         *      (Vulkan 1.2, @vk_extension{KHR,shader_atomic_int64})
+         * -    @type_vk_keyword{PhysicalDeviceTimelineSemaphoreFeatures}
+         *      (Vulkan 1.2, @vk_extension{KHR,timeline_semaphore})
+         * -    @type_vk_keyword{PhysicalDeviceVulkanMemoryModelFeatures}
+         *      (Vulkan 1.2, @vk_extension{KHR,vulkan_memory_model})
+         * -    @type_vk_keyword{PhysicalDeviceScalarBlockLayoutFeatures}
+         *      (Vulkan 1.2, @vk_extension{EXT,scalar_block_layout})
+         * -    @type_vk_keyword{PhysicalDeviceSeparateDepthStencilLayoutsFeatures}
+         *      (Vulkan 1.2, @vk_extension{KHR,separate_depth_stencil_layouts})
+         * -    @type_vk_keyword{PhysicalDeviceUniformBufferStandardLayoutFeatures}
+         *      (Vulkan 1.2, @vk_extension{KHR,uniform_buffer_standard_layout})
+         * -    @type_vk_keyword{PhysicalDeviceBufferDeviceAddressFeatures}
+         *      (Vulkan 1.2, @vk_extension{KHR,buffer_device_address})
+         * -    @type_vk_keyword{PhysicalDeviceHostQueryResetFeatures} (Vulkan
+         *      1.2, @vk_extension{EXT,host_query_reset})
+         * -    @type_vk_keyword{PhysicalDeviceIndexTypeUint8FeaturesEXT}
+         *      (@vk_extension{EXT,index_type_uint8})
+         */
+        DeviceCreateInfo& setEnabledFeatures(const DeviceFeatures& features) &;
+        /** @overload */
+        DeviceCreateInfo&& setEnabledFeatures(const DeviceFeatures& features) &&;
+
         /**
          * @brief Add queues
          * @param[in] family        Family index, smaller than

src/Magnum/Vk/DeviceProperties.cpp

@@ -259,6 +259,21 @@ template<class E> bool DeviceProperties::isOrVersionSupportedInternal() {
     return extensionPropertiesInternal().isSupported<E>();
 }
 
+bool DeviceProperties::canUseFeatures2ForDeviceCreation() {
+    if(!_state) _state.emplace(*_instance, _handle);
+
+    /* To avoid repeating the logic (and the 10-paragraph explanation) from
+       State constructor here, we simply check what is used to query device
+       features. If the 1.1 or KHR entry point then we can, if the default then
+       we can't. */
+    if(_state->getFeaturesImplementation == getFeaturesImplementation11 ||
+       _state->getFeaturesImplementation == getFeaturesImplementationKHR)
+        return true;
+    if(_state->getFeaturesImplementation == getFeaturesImplementationDefault)
+        return false;
+    CORRADE_INTERNAL_ASSERT_UNREACHABLE(); /* LCOV_EXCL_LINE */
+}
+
 const DeviceFeatures& DeviceProperties::features() {
     if(!_state) _state.emplace(*_instance, _handle);
 

src/Magnum/Vk/DeviceProperties.h

@@ -482,7 +482,8 @@ class MAGNUM_VK_EXPORT DeviceProperties {
          *      supported by the device, the `pNext` chain contains
          *      @type_vk_keyword{PhysicalDeviceIndexTypeUint8FeaturesEXT}
          *
-         * @see @fn_vk_keyword{GetPhysicalDeviceFeatures2},
+         * @see @ref Device::enabledFeatures(),
+         *      @fn_vk_keyword{GetPhysicalDeviceFeatures2},
          *      @fn_vk_keyword{GetPhysicalDeviceFeatures},
          *      @type_vk_keyword{PhysicalDeviceFeatures2},
          *      @type_vk_keyword{PhysicalDeviceFeatures}
@@ -715,6 +716,9 @@ class MAGNUM_VK_EXPORT DeviceProperties {
            accidents with incorrectly specified extension core version. */
         template<class E> MAGNUM_VK_LOCAL bool isOrVersionSupportedInternal();
 
+        /* Used by DeviceCreateInfo */
+        MAGNUM_VK_LOCAL bool canUseFeatures2ForDeviceCreation();
+
         MAGNUM_VK_LOCAL static void getPropertiesImplementationDefault(DeviceProperties& self, VkPhysicalDeviceProperties2& properties);
         MAGNUM_VK_LOCAL static void getPropertiesImplementationKHR(DeviceProperties& self, VkPhysicalDeviceProperties2& properties);
         MAGNUM_VK_LOCAL static void getPropertiesImplementation11(DeviceProperties& self, VkPhysicalDeviceProperties2& properties);

src/Magnum/Vk/Implementation/DeviceFeatures.h

@@ -31,7 +31,10 @@ namespace Magnum { namespace Vk { namespace Implementation {
 
 /* Everything except the top-level VkPhysicalDeviceFeatures2 structure, which
    is treated differently when querying and enabling the features. Used by
-   DeviceProperties.cpp. */
+   DeviceProperties.cpp and Device.cpp, in addition needs to be kept in sync
+   with the list in Device.cpp passed to Implementation::structureDisconnectChain()
+   (however there's a test that should catch *all* errors with forgotten or
+   wrongly ordered structures there). */
 struct DeviceFeatures {
     VkPhysicalDeviceProtectedMemoryFeatures protectedMemory;
     VkPhysicalDeviceMultiviewFeatures multiview;

src/Magnum/Vk/Test/DeviceVkTest.cpp

@@ -31,6 +31,7 @@
 #include <Corrade/Utility/FormatStl.h>
 
 #include "Magnum/Vk/DeviceCreateInfo.h"
+#include "Magnum/Vk/DeviceFeatures.h"
 #include "Magnum/Vk/DeviceProperties.h"
 #include "Magnum/Vk/Extensions.h"
 #include "Magnum/Vk/ExtensionProperties.h"
@@ -53,6 +54,11 @@ struct DeviceVkTest: VulkanTester {
     void createInfoConstructNoImplicitExtensions();
     void createInfoExtensions();
     void createInfoExtensionsCopiedStrings();
+    void createInfoFeatures();
+    void createInfoFeaturesReplaceExternal();
+    void createInfoFeaturesReplacePrevious();
+    void createInfoFeaturesEnableAllResetAll();
+    void createInfoFeaturesNothingInCoreFeatures();
     void createInfoNoQueuePriorities();
     void createInfoWrongQueueOutputCount();
     void createInfoConstructCopy();
@@ -62,6 +68,8 @@ struct DeviceVkTest: VulkanTester {
     void construct();
     void constructQueueFromFlags();
     void constructExtensions();
+    void constructFeatures();
+    void constructFeaturesFromExtensions();
     void constructDeviceCreateInfoConstReference();
     void constructTransferDeviceProperties();
     void constructExtensionsCommandLineDisable();
@@ -70,6 +78,8 @@ struct DeviceVkTest: VulkanTester {
     void constructRawQueue();
     void constructMove();
     void constructUnknownExtension();
+    void constructFeatureNotSupported();
+    void constructFeatureWithoutExtension();
     void constructNoQueue();
 
     void wrap();
@@ -137,6 +147,11 @@ DeviceVkTest::DeviceVkTest(): VulkanTester{NoCreate} {
               &DeviceVkTest::createInfoConstructNoImplicitExtensions,
               &DeviceVkTest::createInfoExtensions,
               &DeviceVkTest::createInfoExtensionsCopiedStrings,
+              &DeviceVkTest::createInfoFeatures,
+              &DeviceVkTest::createInfoFeaturesReplaceExternal,
+              &DeviceVkTest::createInfoFeaturesReplacePrevious,
+              &DeviceVkTest::createInfoFeaturesEnableAllResetAll,
+              &DeviceVkTest::createInfoFeaturesNothingInCoreFeatures,
               &DeviceVkTest::createInfoNoQueuePriorities,
               &DeviceVkTest::createInfoWrongQueueOutputCount,
               &DeviceVkTest::createInfoConstructCopy,
@@ -146,6 +161,8 @@ DeviceVkTest::DeviceVkTest(): VulkanTester{NoCreate} {
               &DeviceVkTest::construct,
               &DeviceVkTest::constructQueueFromFlags,
               &DeviceVkTest::constructExtensions,
+              &DeviceVkTest::constructFeatures,
+              &DeviceVkTest::constructFeaturesFromExtensions,
               &DeviceVkTest::constructDeviceCreateInfoConstReference,
               &DeviceVkTest::constructTransferDeviceProperties});
 
@@ -158,6 +175,8 @@ DeviceVkTest::DeviceVkTest(): VulkanTester{NoCreate} {
 
               &DeviceVkTest::constructMove,
               &DeviceVkTest::constructUnknownExtension,
+              &DeviceVkTest::constructFeatureNotSupported,
+              &DeviceVkTest::constructFeatureWithoutExtension,
               &DeviceVkTest::constructNoQueue,
 
               &DeviceVkTest::wrap,
@@ -171,6 +190,7 @@ void DeviceVkTest::createInfoConstruct() {
     CORRADE_VERIFY(info->sType);
     CORRADE_VERIFY(!info->pNext);
     /* Extensions might or might not be enabled */
+    CORRADE_VERIFY(!info->pEnabledFeatures);
 }
 
 void DeviceVkTest::createInfoConstructNoImplicitExtensions() {
@@ -180,6 +200,7 @@ void DeviceVkTest::createInfoConstructNoImplicitExtensions() {
     /* No extensions enabled as we explicitly disabled that */
     CORRADE_VERIFY(!info->ppEnabledExtensionNames);
     CORRADE_COMPARE(info->enabledExtensionCount, 0);
+    CORRADE_VERIFY(!info->pEnabledFeatures);
 }
 
 void DeviceVkTest::createInfoExtensions() {
@@ -229,6 +250,186 @@ void DeviceVkTest::createInfoExtensionsCopiedStrings() {
     CORRADE_VERIFY(info->ppEnabledExtensionNames[1] != localButNullTerminated.data());
 }
 
+void DeviceVkTest::createInfoFeatures() {
+    DeviceProperties properties = pickDevice(instance());
+
+    /* We don't use the structure for anything, so we don't need to check if
+       the structure is actually supported */
+    DeviceCreateInfo info{properties};
+    info.setEnabledFeatures(DeviceFeature::RobustBufferAccess|DeviceFeature::SamplerYcbcrConversion);
+
+    /* If we have Vulkan 1.1 on both instance and the device or KHR_gpdp2 is
+       enabled on the instance, pNext chain will be filled as appropriate */
+    if((instance().isVersionSupported(Version::Vk11) && properties.isVersionSupported(Version::Vk11)) || instance().isExtensionEnabled<Extensions::KHR::get_physical_device_properties2>()) {
+        CORRADE_VERIFY(!info->pEnabledFeatures);
+        CORRADE_VERIFY(info->pNext);
+        const auto& features2 = *static_cast<const VkPhysicalDeviceFeatures2*>(info->pNext);
+        CORRADE_COMPARE(features2.sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2);
+        CORRADE_VERIFY(features2.features.robustBufferAccess);
+
+        CORRADE_VERIFY(features2.pNext);
+        const auto& samplerYcbcrConversionFeatures = *static_cast<const VkPhysicalDeviceSamplerYcbcrConversionFeatures*>(features2.pNext);
+        CORRADE_COMPARE(samplerYcbcrConversionFeatures.sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES);
+        CORRADE_VERIFY(samplerYcbcrConversionFeatures.samplerYcbcrConversion);
+
+    /* Otherwise just the pEnabledFeatures will be enabled */
+    } else {
+        CORRADE_VERIFY(!info->pNext);
+        CORRADE_VERIFY(info->pEnabledFeatures);
+        CORRADE_VERIFY(info->pEnabledFeatures->robustBufferAccess);
+    }
+}
+
+void DeviceVkTest::createInfoFeaturesNothingInCoreFeatures() {
+    DeviceProperties properties = pickDevice(instance());
+
+    DeviceCreateInfo info{properties};
+    info.setEnabledFeatures(DeviceFeature::SamplerYcbcrConversion|DeviceFeature::ImagelessFramebuffer);
+
+    /* If we have Vulkan 1.1 on both instance and the device or KHR_gpdp2 is
+       enabled on the instance, pNext chain will be filled as appropriate */
+    if((instance().isVersionSupported(Version::Vk11) && properties.isVersionSupported(Version::Vk11)) || instance().isExtensionEnabled<Extensions::KHR::get_physical_device_properties2>()) {
+        CORRADE_VERIFY(!info->pEnabledFeatures);
+        CORRADE_VERIFY(info->pNext);
+        const auto& imagelessFramebufferFeatures = *static_cast<const VkPhysicalDeviceImagelessFramebufferFeatures*>(info->pNext);
+        CORRADE_COMPARE(imagelessFramebufferFeatures.sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGELESS_FRAMEBUFFER_FEATURES);
+        CORRADE_VERIFY(imagelessFramebufferFeatures.imagelessFramebuffer);
+
+        const auto& samplerYcbcrConversionFeatures = *static_cast<const VkPhysicalDeviceSamplerYcbcrConversionFeatures*>(imagelessFramebufferFeatures.pNext);
+        CORRADE_COMPARE(samplerYcbcrConversionFeatures.sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES);
+        CORRADE_VERIFY(samplerYcbcrConversionFeatures.samplerYcbcrConversion);
+
+    /* Otherwise nothing is enabled as there's nowhere to connect that */
+    } else {
+        CORRADE_VERIFY(!info->pNext);
+        CORRADE_VERIFY(!info->pEnabledFeatures);
+    }
+}
+
+void DeviceVkTest::createInfoFeaturesReplaceExternal() {
+    DeviceProperties properties = pickDevice(instance());
+
+    VkPhysicalDeviceFeatures2 features{};
+    features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
+    VkAttachmentReference2 somethingAfter{};
+    somethingAfter.pNext = &features;
+
+    DeviceCreateInfo info{properties};
+    info->pNext = &somethingAfter;
+    info->pEnabledFeatures = &features.features;
+
+    info.setEnabledFeatures(DeviceFeature::RobustBufferAccess);
+
+    /* Then, if we have Vulkan 1.1 on both instance and the device or KHR_gpdp2
+       is enabled on the instance, pNext will be filled and pEnabledFeatures
+       reset */
+    if((instance().isVersionSupported(Version::Vk11) && properties.isVersionSupported(Version::Vk11)) || instance().isExtensionEnabled<Extensions::KHR::get_physical_device_properties2>()) {
+        CORRADE_VERIFY(!info->pEnabledFeatures);
+        CORRADE_VERIFY(info->pNext);
+        const auto& features2 = *static_cast<const VkPhysicalDeviceFeatures2*>(info->pNext);
+        CORRADE_COMPARE(features2.sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2);
+        CORRADE_VERIFY(features2.features.robustBufferAccess);
+
+        /* The original chain should be preserved after */
+        CORRADE_COMPARE(features2.pNext, &somethingAfter);
+
+    /* Otherwise the pNext chain will be preserved and pEnabledFeatures
+       replaced with own instance */
+    } else {
+        CORRADE_VERIFY(info->pEnabledFeatures);
+        CORRADE_VERIFY(info->pEnabledFeatures != &features.features);
+        CORRADE_VERIFY(info->pEnabledFeatures->robustBufferAccess);
+    }
+
+    /* No changes to the original chain, even though it has a features on its
+       own (that's user error)  */
+    CORRADE_COMPARE(somethingAfter.pNext, &features);
+}
+
+void DeviceVkTest::createInfoFeaturesReplacePrevious() {
+    DeviceProperties properties = pickDevice(instance());
+
+    VkAttachmentReference2 somethingAfter{};
+
+    DeviceCreateInfo info{properties};
+    info->pNext = &somethingAfter;
+
+    info.setEnabledFeatures(DeviceFeature::RobustBufferAccess);
+
+    /* If we have Vulkan 1.1 on both instance and the device or KHR_gpdp2 is
+       enabled on the instance, pNext chain will be filled as appropriate */
+    if((instance().isVersionSupported(Version::Vk11) && properties.isVersionSupported(Version::Vk11)) || instance().isExtensionEnabled<Extensions::KHR::get_physical_device_properties2>()) {
+        CORRADE_VERIFY(!info->pEnabledFeatures);
+        CORRADE_VERIFY(info->pNext);
+        const auto& features2 = *static_cast<const VkPhysicalDeviceFeatures2*>(info->pNext);
+        CORRADE_COMPARE(features2.sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2);
+        CORRADE_VERIFY(features2.features.robustBufferAccess);
+
+        /* The original chain should be preserved after */
+        CORRADE_COMPARE(features2.pNext, &somethingAfter);
+
+    /* Otherwise the pNext chain will be preserved and pEnabledFeatures
+       replaced with own instance */
+    } else {
+        CORRADE_COMPARE(info->pNext, &somethingAfter);
+        CORRADE_VERIFY(info->pEnabledFeatures);
+        CORRADE_VERIFY(info->pEnabledFeatures->robustBufferAccess);
+    }
+
+    /* Setting a different non-core feature */
+    info.setEnabledFeatures(DeviceFeature::ImagelessFramebuffer);
+    if((instance().isVersionSupported(Version::Vk11) && properties.isVersionSupported(Version::Vk11)) || instance().isExtensionEnabled<Extensions::KHR::get_physical_device_properties2>()) {
+        CORRADE_VERIFY(!info->pEnabledFeatures);
+        CORRADE_VERIFY(info->pNext);
+        const auto& imagelessFramebufferFeatures = *static_cast<const VkPhysicalDeviceImagelessFramebufferFeatures*>(info->pNext);
+        CORRADE_COMPARE(imagelessFramebufferFeatures.sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGELESS_FRAMEBUFFER_FEATURES);
+        CORRADE_VERIFY(imagelessFramebufferFeatures.imagelessFramebuffer);
+
+        /* The original chain should still be preserved after, without the
+           structures from the previous case getting in the way */
+        CORRADE_COMPARE(imagelessFramebufferFeatures.pNext, &somethingAfter);
+
+    /* Otherwise the pNext chain will still be preserved and pEnabledFeatures
+       empty */
+    } else {
+        CORRADE_COMPARE(info->pNext, &somethingAfter);
+        CORRADE_VERIFY(!info->pEnabledFeatures);
+    }
+
+    /* Setting no features, everything should be fully discarded, and the
+       original chain still kept. This doesn't have any difference between
+       versions. */
+    info.setEnabledFeatures({});
+    CORRADE_COMPARE(info->pNext, &somethingAfter);
+    CORRADE_VERIFY(!info->pEnabledFeatures);
+    CORRADE_VERIFY(!somethingAfter.pNext);
+}
+
+void DeviceVkTest::createInfoFeaturesEnableAllResetAll() {
+    DeviceProperties properties = pickDevice(instance());
+
+    if((!instance().isVersionSupported(Version::Vk11) || !properties.isVersionSupported(Version::Vk11)) && !instance().isExtensionEnabled<Extensions::KHR::get_physical_device_properties2>())
+        CORRADE_SKIP("Neither Vulkan 1.1 nor KHR_get_physical_device_properties2 is supported, can't test");
+
+    VkAttachmentDescription2 somethingAfter{};
+    somethingAfter.sType = VK_STRUCTURE_TYPE_ATTACHMENT_DESCRIPTION_2;
+
+    DeviceCreateInfo info{properties};
+    info->pNext = &somethingAfter;
+
+    /* This should populate a huge chain of structures */
+    info.setEnabledFeatures(~DeviceFeatures{});
+    CORRADE_VERIFY(info->pNext != &somethingAfter);
+    CORRADE_VERIFY(!somethingAfter.pNext);
+
+    /* And this should disconnect them all again. If this fails, it means the
+       resetting code path got out of sync with the structure list. Sorry,
+       there's not really a better way how to show *where* it got wrong. */
+    info.setEnabledFeatures({});
+    CORRADE_COMPARE(info->pNext, &somethingAfter);
+    CORRADE_VERIFY(!somethingAfter.pNext);
+}
+
 void DeviceVkTest::createInfoNoQueuePriorities() {
     #ifdef CORRADE_NO_ASSERT
     CORRADE_SKIP("CORRADE_NO_ASSERT defined, can't test assertions");
@@ -417,6 +618,40 @@ void DeviceVkTest::constructExtensions() {
     CORRADE_VERIFY(device->TrimCommandPoolKHR);
 }
 
+void DeviceVkTest::constructFeatures() {
+    Queue queue{NoCreate};
+    Device device{instance(), DeviceCreateInfo{pickDevice(instance())}
+        .addQueues(0, {0.0f}, {queue})
+        /* RobustBufferAccess is guaranteed to be supported always, no need to
+           check anything */
+        .setEnabledFeatures(DeviceFeature::RobustBufferAccess)};
+    CORRADE_VERIFY(device.handle());
+
+    /* Features should be reported as enabled */
+    CORRADE_COMPARE(device.enabledFeatures(), DeviceFeature::RobustBufferAccess);
+}
+
+void DeviceVkTest::constructFeaturesFromExtensions() {
+    DeviceProperties properties = pickDevice(instance());
+
+    if(!properties.enumerateExtensionProperties().isSupported<Extensions::KHR::sampler_ycbcr_conversion>())
+        CORRADE_SKIP("VK_KHR_sampler_ycbcr_conversion not supported, can't test");
+    if(!(properties.features() & DeviceFeature::SamplerYcbcrConversion))
+        CORRADE_SKIP("SamplerYcbcrConversion feature not supported, can't test");
+
+    Queue queue{NoCreate};
+    Device device{instance(), DeviceCreateInfo{properties}
+        .addQueues(0, {0.0f}, {queue})
+        .addEnabledExtensions<Extensions::KHR::sampler_ycbcr_conversion>()
+        /* RobustBufferAccess is guaranteed to be supported always, no need to
+           check anything */
+        .setEnabledFeatures(DeviceFeature::RobustBufferAccess|DeviceFeature::SamplerYcbcrConversion)};
+    CORRADE_VERIFY(device.handle());
+
+    /* Features should be reported as enabled */
+    CORRADE_COMPARE(device.enabledFeatures(), DeviceFeature::RobustBufferAccess|DeviceFeature::SamplerYcbcrConversion);
+}
+
 void DeviceVkTest::constructDeviceCreateInfoConstReference() {
     Queue queue{NoCreate};
     DeviceProperties deviceProperties = pickDevice(instance());
@@ -699,6 +934,45 @@ void DeviceVkTest::constructUnknownExtension() {
     CORRADE_COMPARE(out.str(), "TODO");
 }
 
+void DeviceVkTest::constructFeatureNotSupported() {
+    DeviceProperties properties = pickDevice(instance());
+    if(properties.features() & DeviceFeature::SparseBinding)
+        CORRADE_SKIP("The SparseBinding feature is supported, can't test");
+    CORRADE_SKIP("Currently this hits an internal assert, which can't be tested.");
+
+    std::ostringstream out;
+    Error redirectError{&out};
+    Queue queue{NoCreate};
+    Device device{instance(), DeviceCreateInfo{properties}
+        .addQueues(0, {0.0f}, {queue})
+        .setEnabledFeatures(DeviceFeature::SparseBinding)};
+    CORRADE_COMPARE(out.str(), "TODO");
+}
+
+void DeviceVkTest::constructFeatureWithoutExtension() {
+    DeviceProperties properties = pickDevice(instance());
+    if((!instance().isVersionSupported(Version::Vk11) || !properties.isVersionSupported(Version::Vk11)) && !instance().isExtensionEnabled<Extensions::KHR::get_physical_device_properties2>())
+        CORRADE_SKIP("Neither Vulkan 1.1 nor KHR_get_physical_device_properties2 is supported, can't test");
+    if(properties.features() & DeviceFeature::TextureCompressionAstcHdr)
+        CORRADE_SKIP("The TextureCompressionAstcHdr feature is supported, can't test");
+
+    Queue queue{NoCreate};
+    DeviceCreateInfo info{properties};
+    info.addQueues(0, {0.0f}, {queue})
+        .setEnabledFeatures(DeviceFeature::TextureCompressionAstcHdr);
+
+    /* Just to verify we're doing the correct thing */
+    CORRADE_VERIFY(info->pNext);
+    CORRADE_COMPARE(static_cast<const VkBaseInStructure*>(info->pNext)->sType, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXTURE_COMPRESSION_ASTC_HDR_FEATURES_EXT);
+    CORRADE_VERIFY(static_cast<const VkPhysicalDeviceTextureCompressionASTCHDRFeaturesEXT*>(info->pNext)->textureCompressionASTC_HDR);
+
+    std::ostringstream out;
+    Error redirectError{&out};
+    Device device{instance(), info};
+    CORRADE_EXPECT_FAIL("For some reason it doesn't complain when a feature that needs an extension is enabled. Am I stupid?");
+    CORRADE_VERIFY(!out.str().empty());
+}
+
 void DeviceVkTest::constructNoQueue() {
     #ifdef CORRADE_NO_ASSERT
     CORRADE_SKIP("CORRADE_NO_ASSERT defined, can't test assertions");
@@ -743,7 +1017,10 @@ void DeviceVkTest::wrap() {
             .addEnabledExtensions<
                 Extensions::EXT::debug_marker,
                 Extensions::KHR::maintenance1
-            >(),
+            >()
+            /* RobustBufferAccess is guaranteed to be supported always, no need
+               to check anything */
+            .setEnabledFeatures(DeviceFeature::RobustBufferAccess),
         nullptr, &device)), Result::Success);
     CORRADE_VERIFY(device);
     /* Populating the queue handle is done only from Device itself, so it won't
@@ -754,7 +1031,7 @@ void DeviceVkTest::wrap() {
         /* Wrapping should load the basic function pointers */
         auto wrapped = Device::wrap(instance2, device, Version::Vk11, {
             Extensions::EXT::debug_marker::string()
-        }, HandleFlag::DestroyOnDestruction);
+        }, DeviceFeature::RobustBufferAccess, HandleFlag::DestroyOnDestruction);
         CORRADE_VERIFY(wrapped->DestroyDevice);
 
         /* Specified version should be reported as supported but higher not
@@ -772,12 +1049,15 @@ void DeviceVkTest::wrap() {
         CORRADE_VERIFY(!wrapped.isExtensionEnabled<Extensions::KHR::maintenance1>());
         CORRADE_VERIFY(wrapped->TrimCommandPoolKHR);
 
+        /* Listed features should be reported as enabled */
+        CORRADE_COMPARE(wrapped.enabledFeatures(), DeviceFeature::RobustBufferAccess);
+
         /* Releasing won't destroy anything ... */
         CORRADE_COMPARE(wrapped.release(), device);
     }
 
     /* ...so we can wrap it again, non-owned, and then destroy it manually */
-    auto wrapped = Device::wrap(instance2, device, Version::Vk10, {});
+    auto wrapped = Device::wrap(instance2, device, Version::Vk10, {}, {});
     CORRADE_VERIFY(wrapped->DestroyDevice);
     wrapped->DestroyDevice(device, nullptr);
 }