Vk: command pool creation.

doc/vulkan-mapping.dox

@@ -123,7 +123,7 @@ Vulkan function                         | Matching API
 @fn_vk{CmdWriteTimestamp}               | |
 @fn_vk{CreateBuffer}, \n @fn_vk{DestroyBuffer} | |
 @fn_vk{CreateBufferView}, \n @fn_vk{DestroyBufferView} | |
-@fn_vk{CreateCommandPool}, \n @fn_vk{DestroyCommandPool} | |
+@fn_vk{CreateCommandPool}, \n @fn_vk{DestroyCommandPool} | @ref CommandPool constructor and destructor
 @fn_vk{CreateComputePipelines}, \n @fn_vk{DestroyComputePipelines} | |
 @fn_vk{CreateDebugReportCallbackEXT} @m_class{m-label m-danger} **deprecated** @m_class{m-label m-flat m-warning} **EXT**, \n @fn_vk{DestroyDebugReportCallbackEXT} @m_class{m-label m-danger} **deprecated** @m_class{m-label m-flat m-warning} **EXT** | |
 @fn_vk{CreateDebugUtilsMessengerEXT} @m_class{m-label m-flat m-warning} **EXT**, \n @fn_vk{DestroyDebugUtilsMessengerEXT} @m_class{m-label m-flat m-warning} **EXT** | |
@@ -304,6 +304,14 @@ Vulkan structure                        | Matching API
 --------------------------------------- | ------------
 @type_vk{ApplicationInfo}               | @ref InstanceCreateInfo
 
+@subsection vulkan-mapping-structures-c C
+
+@m_class{m-fullwidth}
+
+Vulkan structure                        | Matching API
+--------------------------------------- | ------------
+@type_vk{CommandPoolCreateInfo}         | @ref CommandPoolCreateInfo
+
 @subsection vulkan-mapping-structures-d D
 
 @m_class{m-fullwidth}

src/Magnum/Vk/CMakeLists.txt

@@ -27,6 +27,7 @@
 find_package(Vulkan REQUIRED)
 
 set(MagnumVk_SRCS
+    CommandPool.cpp
     Extensions.cpp
     Handle.cpp
     Instance.cpp
@@ -45,6 +46,7 @@ set(MagnumVk_GracefulAssert_SRCS
     LayerProperties.cpp)
 
 set(MagnumVk_HEADERS
+    CommandPool.h
     Device.h
     DeviceProperties.h
     Enums.h

src/Magnum/Vk/CommandPool.cpp

@@ -0,0 +1,84 @@
+/*
+    This file is part of Magnum.
+
+    Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+                2020 Vladimír Vondruš <mosra@centrum.cz>
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+*/
+
+#include "CommandPool.h"
+
+#include "Magnum/Vk/Device.h"
+#include "Magnum/Vk/Handle.h"
+#include "Magnum/Vk/Result.h"
+
+namespace Magnum { namespace Vk {
+
+CommandPoolCreateInfo::CommandPoolCreateInfo(const UnsignedInt queueFamilyIndex, const Flags flags): _info{} {
+    _info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
+    _info.flags = VkCommandPoolCreateFlags(flags);
+    _info.queueFamilyIndex = queueFamilyIndex;
+}
+
+CommandPoolCreateInfo::CommandPoolCreateInfo(NoInitT) noexcept {}
+
+CommandPoolCreateInfo::CommandPoolCreateInfo(const VkCommandPoolCreateInfo& info):
+    /* Can't use {} with GCC 4.8 here because it tries to initialize the first
+       member instead of doing a copy */
+    _info(info) {}
+
+CommandPool CommandPool::wrap(Device& device, const VkCommandPool handle, const HandleFlags flags) {
+    CommandPool out{NoCreate};
+    out._device = &device;
+    out._handle = handle;
+    out._flags = flags;
+    return out;
+}
+
+CommandPool::CommandPool(Device& device, const CommandPoolCreateInfo& info): _device{&device}, _flags{HandleFlag::DestroyOnDestruction} {
+    MAGNUM_VK_INTERNAL_ASSERT_RESULT(device->CreateCommandPool(device, info, nullptr, &_handle));
+}
+
+CommandPool::CommandPool(NoCreateT) noexcept: _device{}, _handle{} {}
+
+CommandPool::CommandPool(CommandPool&& other) noexcept: _device{other._device}, _handle{other._handle}, _flags{other._flags} {
+    other._handle = {};
+}
+
+CommandPool::~CommandPool() {
+    if(_handle && (_flags & HandleFlag::DestroyOnDestruction))
+        (**_device).DestroyCommandPool(*_device, _handle, nullptr);
+}
+
+CommandPool& CommandPool::operator=(CommandPool&& other) noexcept {
+    using std::swap;
+    swap(other._device, _device);
+    swap(other._handle, _handle);
+    swap(other._flags, _flags);
+    return *this;
+}
+
+VkCommandPool CommandPool::release() {
+    const VkCommandPool handle = _handle;
+    _handle = {};
+    return handle;
+}
+
+}}

src/Magnum/Vk/CommandPool.h

@@ -0,0 +1,222 @@
+#ifndef Magnum_Vk_CommandPool_h
+#define Magnum_Vk_CommandPool_h
+/*
+    This file is part of Magnum.
+
+    Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+                2020 Vladimír Vondruš <mosra@centrum.cz>
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+*/
+
+/** @file
+ * @brief Class @ref Magnum::Vk::CommandPoolCreateInfo, @ref Magnum::Vk::CommandPool
+ * @m_since_latest
+ */
+
+#include <Corrade/Containers/EnumSet.h>
+
+#include "Magnum/Tags.h"
+#include "Magnum/Magnum.h"
+#include "Magnum/Vk/Vk.h"
+#include "Magnum/Vk/Vulkan.h"
+#include "Magnum/Vk/visibility.h"
+
+namespace Magnum { namespace Vk {
+
+/**
+@brief Command pool creation info
+@m_since_latest
+
+Wraps a @type_vk_keyword{CommandPoolCreateInfo}.
+@see @ref CommandPool
+*/
+class MAGNUM_VK_EXPORT CommandPoolCreateInfo {
+    public:
+        /**
+         * @brief Command pool creation flag
+         *
+         * Wraps @type_vk_keyword{CommandPoolCreateFlagBits}.
+         * @see @ref Flags, @ref CommandPoolCreateInfo(UnsignedInt, Flags)
+         * @m_enum_values_as_keywords
+         */
+        enum class Flag: UnsignedInt {
+            /** Command buffers allocated from this pool will be short-lived */
+            Transient = VK_COMMAND_POOL_CREATE_TRANSIENT_BIT,
+
+            /**
+             * Allow individual command buffers to be reset to initial state
+             * instead of just the whole pool.
+             *
+             * @m_class{m-note m-success}
+             *
+             * @par
+             *      Not using this flag may help the driver to use simpler
+             *      per-pool allocators instead of per-buffer.
+             */
+            ResetCommandBuffer = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT
+        };
+
+        /**
+         * @brief Command pool creation flags
+         *
+         * Type-safe wrapper for @type_vk_keyword{CommandPoolCreateFlags}.
+         * @see @ref CommandPoolCreateInfo(UnsignedInt, Flags)
+         */
+        typedef Containers::EnumSet<Flag> Flags;
+
+        /**
+         * @brief Constructor
+         * @param queueFamilyIndex  Queue family index
+         * @param flags             Command pool creation flags
+         *
+         * The following @type_vk{CommandPoolCreateInfo} fields are pre-filled
+         * in addition to `sType`, everything else is zero-filled:
+         *
+         * -    `flags`
+         * -    `queueFamilyIndex`
+         *
+         * @see @ref DeviceProperties::pickQueueFamily()
+         */
+        explicit CommandPoolCreateInfo(UnsignedInt queueFamilyIndex, Flags flags = {});
+
+        /**
+         * @brief Construct without initializing the contents
+         *
+         * Note that not even the `sType` field is set --- the structure has to
+         * be fully initialized afterwards in order to be usable.
+         */
+        explicit CommandPoolCreateInfo(NoInitT) noexcept;
+
+        /**
+         * @brief Construct from existing data
+         *
+         * Copies the existing values verbatim, pointers are kept unchanged
+         * without taking over the ownership. Modifying the newly created
+         * instance will not modify the original data nor the pointed-to data.
+         */
+        explicit CommandPoolCreateInfo(const VkCommandPoolCreateInfo& info);
+
+        /** @brief Underlying @type_vk{CommandPoolCreateInfo} structure */
+        VkCommandPoolCreateInfo& operator*() { return _info; }
+        /** @overload */
+        const VkCommandPoolCreateInfo& operator*() const { return _info; }
+        /** @overload */
+        VkCommandPoolCreateInfo* operator->() { return &_info; }
+        /** @overload */
+        const VkCommandPoolCreateInfo* operator->() const { return &_info; }
+        /** @overload */
+        operator const VkCommandPoolCreateInfo*() const { return &_info; }
+
+    private:
+        VkCommandPoolCreateInfo _info;
+};
+
+CORRADE_ENUMSET_OPERATORS(CommandPoolCreateInfo::Flags)
+
+/**
+@brief Command pool
+@m_since_latest
+
+Wraps a @type_vk_keyword{CommandPool}.
+*/
+class MAGNUM_VK_EXPORT CommandPool {
+    public:
+        /**
+         * @brief Wrap existing Vulkan handle
+         * @param device        Vulkan device the command pool is created on
+         * @param handle        The @type_vk{CommandPool} handle
+         * @param flags         Handle flags
+         *
+         * The @p handle is expected to be of an existing Vulkan command pool.
+         * Unlike a command pool created using a constructor, the Vulkan
+         * command pool is by default not deleted on destruction, use @p flags
+         * for different behavior.
+         */
+        static CommandPool wrap(Device& device, VkCommandPool handle, HandleFlags flags = {});
+
+        /**
+         * @brief Constructor
+         * @param device    Vulkan device to create the command pool on
+         * @param info      Command pool creation info
+         *
+         * @see @fn_vk_keyword{CreateCommandPool}
+         */
+        explicit CommandPool(Device& device, const CommandPoolCreateInfo& info);
+
+        /**
+         * @brief Construct without creating the instance
+         *
+         * The constructed instance is equivalent to moved-from state. Useful
+         * in cases where you will overwrite the instance later anyway. Move
+         * another object over it to make it useful.
+         */
+        explicit CommandPool(NoCreateT) noexcept;
+
+        /** @brief Copying is not allowed */
+        CommandPool(const CommandPool&) = delete;
+
+        /** @brief Move constructor */
+        CommandPool(CommandPool&& other) noexcept;
+
+        /**
+         * @brief Destructor
+         *
+         * Destroys associated @type_vk{CommandPool} handle, unless the
+         * instance was created using @ref wrap() without @ref HandleFlag::DestroyOnDestruction
+         * specified.
+         * @see @fn_vk_keyword{DestroyCommandPool}, @ref release()
+         */
+        ~CommandPool();
+
+        /** @brief Copying is not allowed */
+        CommandPool& operator=(const CommandPool&) = delete;
+
+        /** @brief Move assignment */
+        CommandPool& operator=(CommandPool&& other) noexcept;
+
+        /** @brief Underlying @type_vk{CommandPool} handle */
+        VkCommandPool handle() { return _handle; }
+        /** @overload */
+        operator VkCommandPool() { return _handle; }
+
+        /** @brief Handle flags */
+        HandleFlags handleFlags() const { return _flags; }
+
+        /**
+         * @brief Release the underlying Vulkan command pool
+         *
+         * Releases ownership of the Vulkan command pool and returns its handle
+         * so @fn_vk{DestroyCommandPool} is not called on destruction. The
+         * internal state is then equivalent to moved-from state.
+         * @see @ref wrap()
+         */
+        VkCommandPool release();
+
+    private:
+        /* Can't be a reference because of the NoCreate constructor */
+        Device* _device;
+
+        VkCommandPool _handle;
+        HandleFlags _flags;
+};
+
+}}
+
+#endif

src/Magnum/Vk/Test/CMakeLists.txt

@@ -24,6 +24,7 @@
 #   DEALINGS IN THE SOFTWARE.
 #
 
+corrade_add_test(VkCommandPoolTest CommandPoolTest.cpp LIBRARIES MagnumVk)
 corrade_add_test(VkDeviceTest DeviceTest.cpp LIBRARIES MagnumVk)
 corrade_add_test(VkDevicePropertiesTest DevicePropertiesTest.cpp LIBRARIES MagnumVk)
 corrade_add_test(VkEnumsTest EnumsTest.cpp LIBRARIES MagnumVkTestLib)
@@ -37,6 +38,7 @@ corrade_add_test(VkResultTest ResultTest.cpp LIBRARIES MagnumVk)
 corrade_add_test(VkVersionTest VersionTest.cpp LIBRARIES MagnumVk)
 
 if(BUILD_VK_TESTS)
+    corrade_add_test(VkCommandPoolVkTest CommandPoolVkTest.cpp LIBRARIES MagnumVulkanTester)
     corrade_add_test(VkDeviceVkTest DeviceVkTest.cpp LIBRARIES MagnumVkTestLib MagnumVulkanTester)
     corrade_add_test(VkDevicePropertiesVkTest DevicePropertiesVkTest.cpp LIBRARIES  MagnumVkTestLib MagnumVulkanTester)
     corrade_add_test(VkExtensionPropertiesVkTest ExtensionPropertiesVkTest.cpp LIBRARIES MagnumVkTestLib)

src/Magnum/Vk/Test/CommandPoolTest.cpp

@@ -0,0 +1,96 @@
+/*
+    This file is part of Magnum.
+
+    Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+                2020 Vladimír Vondruš <mosra@centrum.cz>
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+*/
+
+#include <new>
+#include <Corrade/TestSuite/Tester.h>
+
+#include "Magnum/Vk/CommandPool.h"
+
+namespace Magnum { namespace Vk { namespace Test { namespace {
+
+struct CommandPoolTest: TestSuite::Tester {
+    explicit CommandPoolTest();
+
+    void createInfoConstruct();
+    void createInfoConstructNoInit();
+    void createInfoConstructFromVk();
+
+    void constructNoCreate();
+    void constructCopy();
+};
+
+CommandPoolTest::CommandPoolTest() {
+    addTests({&CommandPoolTest::createInfoConstruct,
+              &CommandPoolTest::createInfoConstructNoInit,
+              &CommandPoolTest::createInfoConstructFromVk,
+
+              &CommandPoolTest::constructNoCreate,
+              &CommandPoolTest::constructCopy});
+}
+
+void CommandPoolTest::createInfoConstruct() {
+    CommandPoolCreateInfo info{37, CommandPoolCreateInfo::Flag::ResetCommandBuffer|CommandPoolCreateInfo::Flag::Transient};
+    CORRADE_COMPARE(info->queueFamilyIndex, 37);
+    CORRADE_COMPARE(info->flags, VK_COMMAND_POOL_CREATE_TRANSIENT_BIT|VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT);
+}
+
+void CommandPoolTest::createInfoConstructNoInit() {
+    CommandPoolCreateInfo info{NoInit};
+    info->sType = VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2;
+    new(&info) CommandPoolCreateInfo{NoInit};
+    CORRADE_COMPARE(info->sType, VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2);
+
+    CORRADE_VERIFY((std::is_nothrow_constructible<CommandPoolCreateInfo, NoInitT>::value));
+
+    /* Implicit construction is not allowed */
+    CORRADE_VERIFY(!(std::is_convertible<NoInitT, CommandPoolCreateInfo>::value));
+}
+
+void CommandPoolTest::createInfoConstructFromVk() {
+    VkCommandPoolCreateInfo vkInfo;
+    vkInfo.sType = VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2;
+
+    CommandPoolCreateInfo info{vkInfo};
+    CORRADE_COMPARE(info->sType, VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2);
+}
+
+void CommandPoolTest::constructNoCreate() {
+    {
+        CommandPool pool{NoCreate};
+        CORRADE_VERIFY(!pool.handle());
+    }
+
+    /* Implicit construction is not allowed */
+    CORRADE_VERIFY(!(std::is_convertible<NoCreateT, CommandPool>::value));
+}
+
+void CommandPoolTest::constructCopy() {
+    CORRADE_VERIFY(!(std::is_constructible<CommandPool, const CommandPool&>{}));
+    CORRADE_VERIFY(!(std::is_assignable<CommandPool, const CommandPool&>{}));
+}
+
+}}}}
+
+CORRADE_TEST_MAIN(Magnum::Vk::Test::CommandPoolTest)

src/Magnum/Vk/Test/CommandPoolVkTest.cpp

@@ -0,0 +1,102 @@
+/*
+    This file is part of Magnum.
+
+    Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+                2020 Vladimír Vondruš <mosra@centrum.cz>
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+*/
+
+#include "Magnum/Vk/CommandPool.h"
+#include "Magnum/Vk/DeviceProperties.h"
+#include "Magnum/Vk/Handle.h"
+#include "Magnum/Vk/Result.h"
+#include "Magnum/Vk/VulkanTester.h"
+
+namespace Magnum { namespace Vk { namespace Test { namespace {
+
+struct CommandPoolVkTest: VulkanTester {
+    explicit CommandPoolVkTest();
+
+    void construct();
+    void constructMove();
+    void wrap();
+};
+
+CommandPoolVkTest::CommandPoolVkTest() {
+    addTests({&CommandPoolVkTest::construct,
+              &CommandPoolVkTest::constructMove,
+              &CommandPoolVkTest::wrap});
+}
+
+void CommandPoolVkTest::construct() {
+    {
+        CommandPool pool{device(), CommandPoolCreateInfo{
+            deviceProperties().pickQueueFamily(QueueFlag::Graphics),
+            CommandPoolCreateInfo::Flag::ResetCommandBuffer}};
+        CORRADE_VERIFY(pool.handle());
+        CORRADE_COMPARE(pool.handleFlags(), HandleFlag::DestroyOnDestruction);
+    }
+
+    /* Shouldn't crash or anything */
+    CORRADE_VERIFY(true);
+}
+
+void CommandPoolVkTest::constructMove() {
+    CommandPool a{device(), CommandPoolCreateInfo{
+        deviceProperties().pickQueueFamily(QueueFlag::Graphics),
+        CommandPoolCreateInfo::Flag::Transient}};
+    VkCommandPool handle = a.handle();
+
+    CommandPool b = std::move(a);
+    CORRADE_VERIFY(!a.handle());
+    CORRADE_COMPARE(b.handle(), handle);
+    CORRADE_COMPARE(b.handleFlags(), HandleFlag::DestroyOnDestruction);
+
+    CommandPool c{NoCreate};
+    c = std::move(b);
+    CORRADE_VERIFY(!b.handle());
+    CORRADE_COMPARE(b.handleFlags(), HandleFlags{});
+    CORRADE_COMPARE(c.handle(), handle);
+    CORRADE_COMPARE(c.handleFlags(), HandleFlag::DestroyOnDestruction);
+
+    CORRADE_VERIFY(std::is_nothrow_move_constructible<CommandPool>::value);
+    CORRADE_VERIFY(std::is_nothrow_move_assignable<CommandPool>::value);
+}
+
+void CommandPoolVkTest::wrap() {
+    VkCommandPool pool{};
+    CORRADE_COMPARE(Result(device()->CreateCommandPool(device(),
+        CommandPoolCreateInfo{
+            deviceProperties().pickQueueFamily(QueueFlag::Graphics)},
+        nullptr, &pool)), Result::Success);
+    CORRADE_VERIFY(pool);
+
+    auto wrapped = CommandPool::wrap(device(), pool, HandleFlag::DestroyOnDestruction);
+    CORRADE_COMPARE(wrapped.handle(), pool);
+
+    /* Release the handle again, destroy by hand */
+    CORRADE_COMPARE(wrapped.release(), pool);
+    CORRADE_VERIFY(!wrapped.handle());
+    device()->DestroyCommandPool(device(), pool, nullptr);
+}
+
+}}}}
+
+CORRADE_TEST_MAIN(Magnum::Vk::Test::CommandPoolVkTest)

src/Magnum/Vk/Vk.h

@@ -36,6 +36,7 @@
 namespace Magnum { namespace Vk {
 
 #ifndef DOXYGEN_GENERATING_OUTPUT
+class CommandPool;
 class Device;
 class DeviceCreateInfo;
 class DeviceProperties;