/* Wine Vulkan ICD implementation
 *
 * Copyright 2017 Roderick Colenbrander
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#if 0
#pragma makedep unix
#endif

#include "config.h"
#include <time.h>

#include "vulkan_private.h"
#include "wine/vulkan_driver.h"
#include "ntuser.h"

WINE_DEFAULT_DEBUG_CHANNEL(vulkan);


static BOOL is_wow64(void)
{
    return sizeof(void *) == sizeof(UINT64) && NtCurrentTeb()->WowTebOffset;
}

static BOOL use_external_memory(void)
{
    return is_wow64();
}

static ULONG_PTR zero_bits(void)
{
    return is_wow64() ? 0x7fffffff : 0;
}

#define wine_vk_count_struct(s, t) wine_vk_count_struct_((void *)s, VK_STRUCTURE_TYPE_##t)
static uint32_t wine_vk_count_struct_(void *s, VkStructureType t)
{
    const VkBaseInStructure *header;
    uint32_t result = 0;

    for (header = s; header; header = header->pNext)
    {
        if (header->sType == t)
            result++;
    }

    return result;
}

static const struct vulkan_funcs *vk_funcs;

#define WINE_VK_ADD_DISPATCHABLE_MAPPING(instance, client_handle, native_handle, object) \
    wine_vk_add_handle_mapping((instance), (uintptr_t)(client_handle), (uintptr_t)(native_handle), &(object)->mapping)
#define WINE_VK_ADD_NON_DISPATCHABLE_MAPPING(instance, client_handle, native_handle, object) \
    wine_vk_add_handle_mapping((instance), (uintptr_t)(client_handle), (native_handle), &(object)->mapping)
static void  wine_vk_add_handle_mapping(struct wine_instance *instance, uint64_t wrapped_handle,
        uint64_t native_handle, struct wine_vk_mapping *mapping)
{
    if (instance->enable_wrapper_list)
    {
        mapping->native_handle = native_handle;
        mapping->wine_wrapped_handle = wrapped_handle;
        pthread_rwlock_wrlock(&instance->wrapper_lock);
        list_add_tail(&instance->wrappers, &mapping->link);
        pthread_rwlock_unlock(&instance->wrapper_lock);
    }
}

#define WINE_VK_REMOVE_HANDLE_MAPPING(instance, object) \
    wine_vk_remove_handle_mapping((instance), &(object)->mapping)
static void wine_vk_remove_handle_mapping(struct wine_instance *instance, struct wine_vk_mapping *mapping)
{
    if (instance->enable_wrapper_list)
    {
        pthread_rwlock_wrlock(&instance->wrapper_lock);
        list_remove(&mapping->link);
        pthread_rwlock_unlock(&instance->wrapper_lock);
    }
}

static uint64_t wine_vk_get_wrapper(struct wine_instance *instance, uint64_t native_handle)
{
    struct wine_vk_mapping *mapping;
    uint64_t result = 0;

    pthread_rwlock_rdlock(&instance->wrapper_lock);
    LIST_FOR_EACH_ENTRY(mapping, &instance->wrappers, struct wine_vk_mapping, link)
    {
        if (mapping->native_handle == native_handle)
        {
            result = mapping->wine_wrapped_handle;
            break;
        }
    }
    pthread_rwlock_unlock(&instance->wrapper_lock);
    return result;
}

static VkBool32 debug_utils_callback_conversion(VkDebugUtilsMessageSeverityFlagBitsEXT severity,
    VkDebugUtilsMessageTypeFlagsEXT message_types,
    const VkDebugUtilsMessengerCallbackDataEXT *callback_data,
    void *user_data)
{
    struct wine_vk_debug_utils_params params;
    VkDebugUtilsObjectNameInfoEXT *object_name_infos;
    struct wine_debug_utils_messenger *object;
    void *ret_ptr;
    ULONG ret_len;
    VkBool32 result;
    unsigned int i;

    TRACE("%i, %u, %p, %p\n", severity, message_types, callback_data, user_data);

    object = user_data;

    if (!object->instance->instance)
    {
        /* instance wasn't yet created, this is a message from the native loader */
        return VK_FALSE;
    }

    /* FIXME: we should pack all referenced structs instead of passing pointers */
    params.user_callback = object->user_callback;
    params.user_data = object->user_data;
    params.severity = severity;
    params.message_types = message_types;
    params.data = *((VkDebugUtilsMessengerCallbackDataEXT *) callback_data);

    object_name_infos = calloc(params.data.objectCount, sizeof(*object_name_infos));

    for (i = 0; i < params.data.objectCount; i++)
    {
        object_name_infos[i].sType = callback_data->pObjects[i].sType;
        object_name_infos[i].pNext = callback_data->pObjects[i].pNext;
        object_name_infos[i].objectType = callback_data->pObjects[i].objectType;
        object_name_infos[i].pObjectName = callback_data->pObjects[i].pObjectName;

        if (wine_vk_is_type_wrapped(callback_data->pObjects[i].objectType))
        {
            object_name_infos[i].objectHandle = wine_vk_get_wrapper(object->instance, callback_data->pObjects[i].objectHandle);
            if (!object_name_infos[i].objectHandle)
            {
                WARN("handle conversion failed 0x%s\n", wine_dbgstr_longlong(callback_data->pObjects[i].objectHandle));
                free(object_name_infos);
                return VK_FALSE;
            }
        }
        else
        {
            object_name_infos[i].objectHandle = callback_data->pObjects[i].objectHandle;
        }
    }

    params.data.pObjects = object_name_infos;

    /* applications should always return VK_FALSE */
    result = KeUserModeCallback( NtUserCallVulkanDebugUtilsCallback, &params, sizeof(params),
                                 &ret_ptr, &ret_len );

    free(object_name_infos);

    return result;
}

static VkBool32 debug_report_callback_conversion(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT object_type,
    uint64_t object_handle, size_t location, int32_t code, const char *layer_prefix, const char *message, void *user_data)
{
    struct wine_vk_debug_report_params params;
    struct wine_debug_report_callback *object;
    void *ret_ptr;
    ULONG ret_len;

    TRACE("%#x, %#x, 0x%s, 0x%s, %d, %p, %p, %p\n", flags, object_type, wine_dbgstr_longlong(object_handle),
        wine_dbgstr_longlong(location), code, layer_prefix, message, user_data);

    object = user_data;

    if (!object->instance->instance)
    {
        /* instance wasn't yet created, this is a message from the native loader */
        return VK_FALSE;
    }

    /* FIXME: we should pack all referenced structs instead of passing pointers */
    params.user_callback = object->user_callback;
    params.user_data = object->user_data;
    params.flags = flags;
    params.object_type = object_type;
    params.location = location;
    params.code = code;
    params.layer_prefix = layer_prefix;
    params.message = message;

    params.object_handle = wine_vk_get_wrapper(object->instance, object_handle);
    if (!params.object_handle)
        params.object_type = VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT;

    return KeUserModeCallback( NtUserCallVulkanDebugReportCallback, &params, sizeof(params),
                               &ret_ptr, &ret_len );
}

static void wine_vk_physical_device_free(struct wine_phys_dev *phys_dev)
{
    if (!phys_dev)
        return;

    WINE_VK_REMOVE_HANDLE_MAPPING(phys_dev->instance, phys_dev);
    free(phys_dev->extensions);
    free(phys_dev);
}

static struct wine_phys_dev *wine_vk_physical_device_alloc(struct wine_instance *instance,
        VkPhysicalDevice phys_dev, VkPhysicalDevice handle)
{
    struct wine_phys_dev *object;
    uint32_t num_host_properties, num_properties = 0;
    VkExtensionProperties *host_properties = NULL;
    BOOL have_external_memory_host = FALSE;
    VkResult res;
    unsigned int i, j;

    if (!(object = calloc(1, sizeof(*object))))
        return NULL;

    object->instance = instance;
    object->handle = handle;
    object->phys_dev = phys_dev;

    handle->base.unix_handle = (uintptr_t)object;
    WINE_VK_ADD_DISPATCHABLE_MAPPING(instance, handle, phys_dev, object);

    instance->funcs.p_vkGetPhysicalDeviceMemoryProperties(phys_dev, &object->memory_properties);

    res = instance->funcs.p_vkEnumerateDeviceExtensionProperties(phys_dev,
            NULL, &num_host_properties, NULL);
    if (res != VK_SUCCESS)
    {
        ERR("Failed to enumerate device extensions, res=%d\n", res);
        goto err;
    }

    host_properties = calloc(num_host_properties, sizeof(*host_properties));
    if (!host_properties)
    {
        ERR("Failed to allocate memory for device properties!\n");
        goto err;
    }

    res = instance->funcs.p_vkEnumerateDeviceExtensionProperties(phys_dev,
            NULL, &num_host_properties, host_properties);
    if (res != VK_SUCCESS)
    {
        ERR("Failed to enumerate device extensions, res=%d\n", res);
        goto err;
    }

    /* Count list of extensions for which we have an implementation.
     * TODO: perform translation for platform specific extensions.
     */
    for (i = 0; i < num_host_properties; i++)
    {
        if (wine_vk_device_extension_supported(host_properties[i].extensionName))
        {
            TRACE("Enabling extension '%s' for physical device %p\n", host_properties[i].extensionName, object);
            num_properties++;
        }
        else
        {
            TRACE("Skipping extension '%s', no implementation found in winevulkan.\n", host_properties[i].extensionName);
        }
        if (!strcmp(host_properties[i].extensionName, "VK_EXT_external_memory_host"))
            have_external_memory_host = TRUE;
    }

    TRACE("Host supported extensions %u, Wine supported extensions %u\n", num_host_properties, num_properties);

    if (!(object->extensions = calloc(num_properties, sizeof(*object->extensions))))
    {
        ERR("Failed to allocate memory for device extensions!\n");
        goto err;
    }

    for (i = 0, j = 0; i < num_host_properties; i++)
    {
        if (wine_vk_device_extension_supported(host_properties[i].extensionName))
        {
            object->extensions[j] = host_properties[i];
            j++;
        }
    }
    object->extension_count = num_properties;

    if (use_external_memory() && have_external_memory_host)
    {
        VkPhysicalDeviceExternalMemoryHostPropertiesEXT host_mem_props =
        {
            .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_MEMORY_HOST_PROPERTIES_EXT,
        };
        VkPhysicalDeviceProperties2 props =
        {
            .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2,
            .pNext = &host_mem_props,
        };
        instance->funcs.p_vkGetPhysicalDeviceProperties2KHR(phys_dev, &props);
        object->external_memory_align = host_mem_props.minImportedHostPointerAlignment;
        if (object->external_memory_align)
            TRACE("Using VK_EXT_external_memory_host for memory mapping with alignment: %u\n",
                  object->external_memory_align);
    }

    free(host_properties);
    return object;

err:
    wine_vk_physical_device_free(object);
    free(host_properties);
    return NULL;
}

static void wine_vk_free_command_buffers(struct wine_device *device,
        struct wine_cmd_pool *pool, uint32_t count, const VkCommandBuffer *buffers)
{
    unsigned int i;

    for (i = 0; i < count; i++)
    {
        struct wine_cmd_buffer *buffer = wine_cmd_buffer_from_handle(buffers[i]);

        if (!buffer)
            continue;

        device->funcs.p_vkFreeCommandBuffers(device->device, pool->command_pool, 1, &buffer->command_buffer);
        WINE_VK_REMOVE_HANDLE_MAPPING(device->phys_dev->instance, buffer);
        buffer->handle->base.unix_handle = 0;
        free(buffer);
    }
}

static void wine_vk_device_get_queues(struct wine_device *device,
        uint32_t family_index, uint32_t queue_count, VkDeviceQueueCreateFlags flags,
        struct wine_queue *queues, VkQueue *handles)
{
    VkDeviceQueueInfo2 queue_info;
    unsigned int i;

    for (i = 0; i < queue_count; i++)
    {
        struct wine_queue *queue = &queues[i];

        queue->device = device;
        queue->handle = (*handles)++;
        queue->family_index = family_index;
        queue->queue_index = i;
        queue->flags = flags;

        /* The Vulkan spec says:
         *
         * "vkGetDeviceQueue must only be used to get queues that were created
         * with the flags parameter of VkDeviceQueueCreateInfo set to zero."
         */
        if (flags && device->funcs.p_vkGetDeviceQueue2)
        {
            queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_INFO_2;
            queue_info.pNext = NULL;
            queue_info.flags = flags;
            queue_info.queueFamilyIndex = family_index;
            queue_info.queueIndex = i;
            device->funcs.p_vkGetDeviceQueue2(device->device, &queue_info, &queue->queue);
        }
        else
        {
            device->funcs.p_vkGetDeviceQueue(device->device, family_index, i, &queue->queue);
        }

        queue->handle->base.unix_handle = (uintptr_t)queue;
        WINE_VK_ADD_DISPATCHABLE_MAPPING(device->phys_dev->instance, queue->handle, queue->queue, queue);
    }
}

static VkResult wine_vk_device_convert_create_info(struct wine_phys_dev *phys_dev,
        struct conversion_context *ctx, const VkDeviceCreateInfo *src, VkDeviceCreateInfo *dst)
{
    unsigned int i;

    *dst = *src;

    /* Should be filtered out by loader as ICDs don't support layers. */
    dst->enabledLayerCount = 0;
    dst->ppEnabledLayerNames = NULL;

    TRACE("Enabled %u extensions.\n", dst->enabledExtensionCount);
    for (i = 0; i < dst->enabledExtensionCount; i++)
    {
        const char *extension_name = dst->ppEnabledExtensionNames[i];
        TRACE("Extension %u: %s.\n", i, debugstr_a(extension_name));
        if (!wine_vk_device_extension_supported(extension_name))
        {
            WARN("Extension %s is not supported.\n", debugstr_a(extension_name));
            return VK_ERROR_EXTENSION_NOT_PRESENT;
        }
    }

    if (phys_dev->external_memory_align)
    {
        const char **new_extensions;

        new_extensions = conversion_context_alloc(ctx, (dst->enabledExtensionCount + 2) *
                                                  sizeof(*dst->ppEnabledExtensionNames));
        memcpy(new_extensions, src->ppEnabledExtensionNames,
               dst->enabledExtensionCount * sizeof(*dst->ppEnabledExtensionNames));
        new_extensions[dst->enabledExtensionCount++] = "VK_KHR_external_memory";
        new_extensions[dst->enabledExtensionCount++] = "VK_EXT_external_memory_host";
        dst->ppEnabledExtensionNames = new_extensions;
    }

    return VK_SUCCESS;
}

/* Helper function used for freeing a device structure. This function supports full
 * and partial object cleanups and can thus be used for vkCreateDevice failures.
 */
static void wine_vk_device_free(struct wine_device *device)
{
    struct wine_queue *queue;

    if (!device)
        return;

    if (device->queues)
    {
        unsigned int i;
        for (i = 0; i < device->queue_count; i++)
        {
            queue = &device->queues[i];
            if (queue && queue->queue)
                WINE_VK_REMOVE_HANDLE_MAPPING(device->phys_dev->instance, queue);
        }
        free(device->queues);
        device->queues = NULL;
    }

    if (device->device && device->funcs.p_vkDestroyDevice)
    {
        WINE_VK_REMOVE_HANDLE_MAPPING(device->phys_dev->instance, device);
        device->funcs.p_vkDestroyDevice(device->device, NULL /* pAllocator */);
    }

    free(device);
}

NTSTATUS init_vulkan(void *args)
{
    vk_funcs = __wine_get_vulkan_driver(WINE_VULKAN_DRIVER_VERSION);
    if (!vk_funcs)
    {
        ERR("Failed to load Wine graphics driver supporting Vulkan.\n");
        return STATUS_UNSUCCESSFUL;
    }

    return STATUS_SUCCESS;
}

/* Helper function for converting between win32 and host compatible VkInstanceCreateInfo.
 * This function takes care of extensions handled at winevulkan layer, a Wine graphics
 * driver is responsible for handling e.g. surface extensions.
 */
static VkResult wine_vk_instance_convert_create_info(struct conversion_context *ctx,
        const VkInstanceCreateInfo *src, VkInstanceCreateInfo *dst, struct wine_instance *object)
{
    VkDebugUtilsMessengerCreateInfoEXT *debug_utils_messenger;
    VkDebugReportCallbackCreateInfoEXT *debug_report_callback;
    VkBaseInStructure *header;
    unsigned int i;

    *dst = *src;

    object->utils_messenger_count = wine_vk_count_struct(dst, DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT);
    object->utils_messengers =  calloc(object->utils_messenger_count, sizeof(*object->utils_messengers));
    header = (VkBaseInStructure *) dst;
    for (i = 0; i < object->utils_messenger_count; i++)
    {
        header = find_next_struct(header->pNext, VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT);
        debug_utils_messenger = (VkDebugUtilsMessengerCreateInfoEXT *) header;

        object->utils_messengers[i].instance = object;
        object->utils_messengers[i].debug_messenger = VK_NULL_HANDLE;
        object->utils_messengers[i].user_callback = debug_utils_messenger->pfnUserCallback;
        object->utils_messengers[i].user_data = debug_utils_messenger->pUserData;

        /* convert_VkInstanceCreateInfo_* already copied the chain, so we can modify it in-place. */
        debug_utils_messenger->pfnUserCallback = (void *) &debug_utils_callback_conversion;
        debug_utils_messenger->pUserData = &object->utils_messengers[i];
    }

    debug_report_callback = find_next_struct(header->pNext,
                                             VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT);
    if (debug_report_callback)
    {
        object->default_callback.instance = object;
        object->default_callback.debug_callback = VK_NULL_HANDLE;
        object->default_callback.user_callback = debug_report_callback->pfnCallback;
        object->default_callback.user_data = debug_report_callback->pUserData;

        debug_report_callback->pfnCallback = (void *) &debug_report_callback_conversion;
        debug_report_callback->pUserData = &object->default_callback;
    }

    /* ICDs don't support any layers, so nothing to copy. Modern versions of the loader
     * filter this data out as well.
     */
    if (object->quirks & WINEVULKAN_QUIRK_IGNORE_EXPLICIT_LAYERS) {
        dst->enabledLayerCount = 0;
        dst->ppEnabledLayerNames = NULL;
        WARN("Ignoring explicit layers!\n");
    } else if (dst->enabledLayerCount) {
        FIXME("Loading explicit layers is not supported by winevulkan!\n");
        return VK_ERROR_LAYER_NOT_PRESENT;
    }

    TRACE("Enabled %u instance extensions.\n", dst->enabledExtensionCount);
    for (i = 0; i < dst->enabledExtensionCount; i++)
    {
        const char *extension_name = dst->ppEnabledExtensionNames[i];
        TRACE("Extension %u: %s.\n", i, debugstr_a(extension_name));
        if (!wine_vk_instance_extension_supported(extension_name))
        {
            WARN("Extension %s is not supported.\n", debugstr_a(extension_name));
            return VK_ERROR_EXTENSION_NOT_PRESENT;
        }
        if (!strcmp(extension_name, "VK_EXT_debug_utils") || !strcmp(extension_name, "VK_EXT_debug_report"))
        {
            object->enable_wrapper_list = VK_TRUE;
        }
    }

    if (use_external_memory())
    {
        const char **new_extensions;

        new_extensions = conversion_context_alloc(ctx, (dst->enabledExtensionCount + 2) *
                                                  sizeof(*dst->ppEnabledExtensionNames));
        memcpy(new_extensions, src->ppEnabledExtensionNames,
               dst->enabledExtensionCount * sizeof(*dst->ppEnabledExtensionNames));
        new_extensions[dst->enabledExtensionCount++] = "VK_KHR_get_physical_device_properties2";
        new_extensions[dst->enabledExtensionCount++] = "VK_KHR_external_memory_capabilities";
        dst->ppEnabledExtensionNames = new_extensions;
    }

    return VK_SUCCESS;
}

/* Helper function which stores wrapped physical devices in the instance object. */
static VkResult wine_vk_instance_load_physical_devices(struct wine_instance *instance)
{
    VkPhysicalDevice *tmp_phys_devs;
    uint32_t phys_dev_count;
    unsigned int i;
    VkResult res;

    res = instance->funcs.p_vkEnumeratePhysicalDevices(instance->instance, &phys_dev_count, NULL);
    if (res != VK_SUCCESS)
    {
        ERR("Failed to enumerate physical devices, res=%d\n", res);
        return res;
    }
    if (!phys_dev_count)
        return res;

    if (phys_dev_count > instance->handle->phys_dev_count)
    {
        instance->handle->phys_dev_count = phys_dev_count;
        return VK_ERROR_OUT_OF_POOL_MEMORY;
    }
    instance->handle->phys_dev_count = phys_dev_count;

    if (!(tmp_phys_devs = calloc(phys_dev_count, sizeof(*tmp_phys_devs))))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    res = instance->funcs.p_vkEnumeratePhysicalDevices(instance->instance, &phys_dev_count, tmp_phys_devs);
    if (res != VK_SUCCESS)
    {
        free(tmp_phys_devs);
        return res;
    }

    instance->phys_devs = calloc(phys_dev_count, sizeof(*instance->phys_devs));
    if (!instance->phys_devs)
    {
        free(tmp_phys_devs);
        return VK_ERROR_OUT_OF_HOST_MEMORY;
    }

    /* Wrap each native physical device handle into a dispatchable object for the ICD loader. */
    for (i = 0; i < phys_dev_count; i++)
    {
        struct wine_phys_dev *phys_dev = wine_vk_physical_device_alloc(instance, tmp_phys_devs[i],
                                                                       &instance->handle->phys_devs[i]);
        if (!phys_dev)
        {
            ERR("Unable to allocate memory for physical device!\n");
            free(tmp_phys_devs);
            return VK_ERROR_OUT_OF_HOST_MEMORY;
        }

        instance->phys_devs[i] = phys_dev;
        instance->phys_dev_count = i + 1;
    }
    instance->phys_dev_count = phys_dev_count;

    free(tmp_phys_devs);
    return VK_SUCCESS;
}

static struct wine_phys_dev *wine_vk_instance_wrap_physical_device(struct wine_instance *instance,
        VkPhysicalDevice physical_device)
{
    unsigned int i;

    for (i = 0; i < instance->phys_dev_count; ++i)
    {
        struct wine_phys_dev *current = instance->phys_devs[i];
        if (current->phys_dev == physical_device)
            return current;
    }

    ERR("Unrecognized physical device %p.\n", physical_device);
    return NULL;
}

/* Helper function used for freeing an instance structure. This function supports full
 * and partial object cleanups and can thus be used for vkCreateInstance failures.
 */
static void wine_vk_instance_free(struct wine_instance *instance)
{
    if (!instance)
        return;

    if (instance->phys_devs)
    {
        unsigned int i;

        for (i = 0; i < instance->phys_dev_count; i++)
        {
            wine_vk_physical_device_free(instance->phys_devs[i]);
        }
        free(instance->phys_devs);
    }

    if (instance->instance)
    {
        vk_funcs->p_vkDestroyInstance(instance->instance, NULL /* allocator */);
        WINE_VK_REMOVE_HANDLE_MAPPING(instance, instance);
    }

    pthread_rwlock_destroy(&instance->wrapper_lock);
    free(instance->utils_messengers);

    free(instance);
}

VkResult wine_vkAllocateCommandBuffers(VkDevice handle, const VkCommandBufferAllocateInfo *allocate_info,
                                       VkCommandBuffer *buffers )
{
    struct wine_device *device = wine_device_from_handle(handle);
    struct wine_cmd_buffer *buffer;
    struct wine_cmd_pool *pool;
    VkResult res = VK_SUCCESS;
    unsigned int i;

    pool = wine_cmd_pool_from_handle(allocate_info->commandPool);

    for (i = 0; i < allocate_info->commandBufferCount; i++)
    {
        VkCommandBufferAllocateInfo allocate_info_host;

        /* TODO: future extensions (none yet) may require pNext conversion. */
        allocate_info_host.pNext = allocate_info->pNext;
        allocate_info_host.sType = allocate_info->sType;
        allocate_info_host.commandPool = pool->command_pool;
        allocate_info_host.level = allocate_info->level;
        allocate_info_host.commandBufferCount = 1;

        TRACE("Allocating command buffer %u from pool 0x%s.\n",
                i, wine_dbgstr_longlong(allocate_info_host.commandPool));

        if (!(buffer = calloc(1, sizeof(*buffer))))
        {
            res = VK_ERROR_OUT_OF_HOST_MEMORY;
            break;
        }

        buffer->handle = buffers[i];
        buffer->device = device;
        res = device->funcs.p_vkAllocateCommandBuffers(device->device,
                &allocate_info_host, &buffer->command_buffer);
        buffer->handle->base.unix_handle = (uintptr_t)buffer;
        WINE_VK_ADD_DISPATCHABLE_MAPPING(device->phys_dev->instance, buffer->handle,
                                         buffer->command_buffer, buffer);
        if (res != VK_SUCCESS)
        {
            ERR("Failed to allocate command buffer, res=%d.\n", res);
            buffer->command_buffer = VK_NULL_HANDLE;
            break;
        }
    }

    if (res != VK_SUCCESS)
        wine_vk_free_command_buffers(device, pool, i + 1, buffers);

    return res;
}

VkResult wine_vkCreateDevice(VkPhysicalDevice phys_dev_handle, const VkDeviceCreateInfo *create_info,
                             const VkAllocationCallbacks *allocator, VkDevice *ret_device,
                             void *client_ptr)
{
    struct wine_phys_dev *phys_dev = wine_phys_dev_from_handle(phys_dev_handle);
    VkDevice device_handle = client_ptr;
    VkDeviceCreateInfo create_info_host;
    struct VkQueue_T *queue_handles;
    struct wine_queue *next_queue;
    struct conversion_context ctx;
    struct wine_device *object;
    unsigned int i;
    VkResult res;

    if (allocator)
        FIXME("Support for allocation callbacks not implemented yet\n");

    if (TRACE_ON(vulkan))
    {
        VkPhysicalDeviceProperties properties;

        phys_dev->instance->funcs.p_vkGetPhysicalDeviceProperties(phys_dev->phys_dev, &properties);

        TRACE("Device name: %s.\n", debugstr_a(properties.deviceName));
        TRACE("Vendor ID: %#x, Device ID: %#x.\n", properties.vendorID, properties.deviceID);
        TRACE("Driver version: %#x.\n", properties.driverVersion);
    }

    if (!(object = calloc(1, sizeof(*object))))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    object->phys_dev = phys_dev;

    init_conversion_context(&ctx);
    res = wine_vk_device_convert_create_info(phys_dev, &ctx, create_info, &create_info_host);
    if (res == VK_SUCCESS)
        res = phys_dev->instance->funcs.p_vkCreateDevice(phys_dev->phys_dev,
                &create_info_host, NULL /* allocator */, &object->device);
    free_conversion_context(&ctx);
    WINE_VK_ADD_DISPATCHABLE_MAPPING(phys_dev->instance, device_handle, object->device, object);
    if (res != VK_SUCCESS)
    {
        WARN("Failed to create device, res=%d.\n", res);
        goto fail;
    }

    /* Just load all function pointers we are aware off. The loader takes care of filtering.
     * We use vkGetDeviceProcAddr as opposed to vkGetInstanceProcAddr for efficiency reasons
     * as functions pass through fewer dispatch tables within the loader.
     */
#define USE_VK_FUNC(name) \
    object->funcs.p_##name = (void *)vk_funcs->p_vkGetDeviceProcAddr(object->device, #name); \
    if (object->funcs.p_##name == NULL) \
        TRACE("Not found '%s'.\n", #name);
    ALL_VK_DEVICE_FUNCS()
#undef USE_VK_FUNC

    /* We need to cache all queues within the device as each requires wrapping since queues are
     * dispatchable objects.
     */
    for (i = 0; i < create_info_host.queueCreateInfoCount; i++)
    {
        object->queue_count += create_info_host.pQueueCreateInfos[i].queueCount;
    }

    if (!(object->queues = calloc(object->queue_count, sizeof(*object->queues))))
    {
        res = VK_ERROR_OUT_OF_HOST_MEMORY;
        goto fail;
    }

    next_queue = object->queues;
    queue_handles = device_handle->queues;
    for (i = 0; i < create_info_host.queueCreateInfoCount; i++)
    {
        uint32_t flags = create_info_host.pQueueCreateInfos[i].flags;
        uint32_t family_index = create_info_host.pQueueCreateInfos[i].queueFamilyIndex;
        uint32_t queue_count = create_info_host.pQueueCreateInfos[i].queueCount;

        TRACE("Queue family index %u, queue count %u.\n", family_index, queue_count);

        wine_vk_device_get_queues(object, family_index, queue_count, flags, next_queue, &queue_handles);
        next_queue += queue_count;
    }

    device_handle->quirks = phys_dev->instance->quirks;
    device_handle->base.unix_handle = (uintptr_t)object;
    *ret_device = device_handle;
    TRACE("Created device %p (native device %p).\n", object, object->device);
    return VK_SUCCESS;

fail:
    wine_vk_device_free(object);
    return res;
}

VkResult wine_vkCreateInstance(const VkInstanceCreateInfo *create_info,
                               const VkAllocationCallbacks *allocator, VkInstance *instance,
                               void *client_ptr)
{
    VkInstance client_instance = client_ptr;
    VkInstanceCreateInfo create_info_host;
    const VkApplicationInfo *app_info;
    struct conversion_context ctx;
    struct wine_instance *object;
    VkResult res;

    if (allocator)
        FIXME("Support for allocation callbacks not implemented yet\n");

    if (!(object = calloc(1, sizeof(*object))))
    {
        ERR("Failed to allocate memory for instance\n");
        return VK_ERROR_OUT_OF_HOST_MEMORY;
    }
    list_init(&object->wrappers);
    pthread_rwlock_init(&object->wrapper_lock, NULL);

    init_conversion_context(&ctx);
    res = wine_vk_instance_convert_create_info(&ctx, create_info, &create_info_host, object);
    if (res == VK_SUCCESS)
        res = vk_funcs->p_vkCreateInstance(&create_info_host, NULL /* allocator */, &object->instance);
    free_conversion_context(&ctx);
    if (res != VK_SUCCESS)
    {
        ERR("Failed to create instance, res=%d\n", res);
        wine_vk_instance_free(object);
        return res;
    }

    object->handle = client_instance;
    WINE_VK_ADD_DISPATCHABLE_MAPPING(object, object->handle, object->instance, object);

    /* Load all instance functions we are aware of. Note the loader takes care
     * of any filtering for extensions which were not requested, but which the
     * ICD may support.
     */
#define USE_VK_FUNC(name) \
    object->funcs.p_##name = (void *)vk_funcs->p_vkGetInstanceProcAddr(object->instance, #name);
    ALL_VK_INSTANCE_FUNCS()
#undef USE_VK_FUNC

    /* Cache physical devices for vkEnumeratePhysicalDevices within the instance as
     * each vkPhysicalDevice is a dispatchable object, which means we need to wrap
     * the native physical devices and present those to the application.
     * Cleanup happens as part of wine_vkDestroyInstance.
     */
    res = wine_vk_instance_load_physical_devices(object);
    if (res != VK_SUCCESS)
    {
        ERR("Failed to load physical devices, res=%d\n", res);
        wine_vk_instance_free(object);
        return res;
    }

    if ((app_info = create_info->pApplicationInfo))
    {
        TRACE("Application name %s, application version %#x.\n",
                debugstr_a(app_info->pApplicationName), app_info->applicationVersion);
        TRACE("Engine name %s, engine version %#x.\n", debugstr_a(app_info->pEngineName),
                app_info->engineVersion);
        TRACE("API version %#x.\n", app_info->apiVersion);

        if (app_info->pEngineName && !strcmp(app_info->pEngineName, "idTech"))
            object->quirks |= WINEVULKAN_QUIRK_GET_DEVICE_PROC_ADDR;
    }

    object->quirks |= WINEVULKAN_QUIRK_ADJUST_MAX_IMAGE_COUNT;

    client_instance->base.unix_handle = (uintptr_t)object;
    *instance = client_instance;
    TRACE("Created instance %p (native instance %p).\n", object, object->instance);
    return VK_SUCCESS;
}

void wine_vkDestroyDevice(VkDevice handle, const VkAllocationCallbacks *allocator)
{
    struct wine_device *device = wine_device_from_handle(handle);

    if (allocator)
        FIXME("Support for allocation callbacks not implemented yet\n");

    wine_vk_device_free(device);
}

void wine_vkDestroyInstance(VkInstance handle, const VkAllocationCallbacks *allocator)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);

    if (allocator)
        FIXME("Support allocation allocators\n");

    wine_vk_instance_free(instance);
}

VkResult wine_vkEnumerateDeviceExtensionProperties(VkPhysicalDevice phys_dev_handle, const char *layer_name,
                                                   uint32_t *count, VkExtensionProperties *properties)
{
    struct wine_phys_dev *phys_dev = wine_phys_dev_from_handle(phys_dev_handle);

    /* This shouldn't get called with layer_name set, the ICD loader prevents it. */
    if (layer_name)
    {
        ERR("Layer enumeration not supported from ICD.\n");
        return VK_ERROR_LAYER_NOT_PRESENT;
    }

    if (!properties)
    {
        *count = phys_dev->extension_count;
        return VK_SUCCESS;
    }

    *count = min(*count, phys_dev->extension_count);
    memcpy(properties, phys_dev->extensions, *count * sizeof(*properties));

    TRACE("Returning %u extensions.\n", *count);
    return *count < phys_dev->extension_count ? VK_INCOMPLETE : VK_SUCCESS;
}

VkResult wine_vkEnumerateInstanceExtensionProperties(const char *name, uint32_t *count,
                                                     VkExtensionProperties *properties)
{
    uint32_t num_properties = 0, num_host_properties;
    VkExtensionProperties *host_properties;
    unsigned int i, j;
    VkResult res;

    res = vk_funcs->p_vkEnumerateInstanceExtensionProperties(NULL, &num_host_properties, NULL);
    if (res != VK_SUCCESS)
        return res;

    if (!(host_properties = calloc(num_host_properties, sizeof(*host_properties))))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    res = vk_funcs->p_vkEnumerateInstanceExtensionProperties(NULL, &num_host_properties, host_properties);
    if (res != VK_SUCCESS)
    {
        ERR("Failed to retrieve host properties, res=%d.\n", res);
        free(host_properties);
        return res;
    }

    /* The Wine graphics driver provides us with all extensions supported by the host side
     * including extension fixup (e.g. VK_KHR_xlib_surface -> VK_KHR_win32_surface). It is
     * up to us here to filter the list down to extensions for which we have thunks.
     */
    for (i = 0; i < num_host_properties; i++)
    {
        if (wine_vk_instance_extension_supported(host_properties[i].extensionName))
            num_properties++;
        else
            TRACE("Instance extension '%s' is not supported.\n", host_properties[i].extensionName);
    }

    if (!properties)
    {
        TRACE("Returning %u extensions.\n", num_properties);
        *count = num_properties;
        free(host_properties);
        return VK_SUCCESS;
    }

    for (i = 0, j = 0; i < num_host_properties && j < *count; i++)
    {
        if (wine_vk_instance_extension_supported(host_properties[i].extensionName))
        {
            TRACE("Enabling extension '%s'.\n", host_properties[i].extensionName);
            properties[j++] = host_properties[i];
        }
    }
    *count = min(*count, num_properties);

    free(host_properties);
    return *count < num_properties ? VK_INCOMPLETE : VK_SUCCESS;
}

VkResult wine_vkEnumerateDeviceLayerProperties(VkPhysicalDevice phys_dev, uint32_t *count,
                                               VkLayerProperties *properties)
{
    *count = 0;
    return VK_SUCCESS;
}

VkResult wine_vkEnumerateInstanceVersion(uint32_t *version)
{
    VkResult res;

    static VkResult (*p_vkEnumerateInstanceVersion)(uint32_t *version);
    if (!p_vkEnumerateInstanceVersion)
        p_vkEnumerateInstanceVersion = vk_funcs->p_vkGetInstanceProcAddr(NULL, "vkEnumerateInstanceVersion");

    if (p_vkEnumerateInstanceVersion)
    {
        res = p_vkEnumerateInstanceVersion(version);
    }
    else
    {
        *version = VK_API_VERSION_1_0;
        res = VK_SUCCESS;
    }

    TRACE("API version %u.%u.%u.\n",
            VK_VERSION_MAJOR(*version), VK_VERSION_MINOR(*version), VK_VERSION_PATCH(*version));
    *version = min(WINE_VK_VERSION, *version);
    return res;
}

VkResult wine_vkEnumeratePhysicalDevices(VkInstance handle, uint32_t *count, VkPhysicalDevice *devices)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);
    unsigned int i;

    if (!devices)
    {
        *count = instance->phys_dev_count;
        return VK_SUCCESS;
    }

    *count = min(*count, instance->phys_dev_count);
    for (i = 0; i < *count; i++)
    {
        devices[i] = instance->phys_devs[i]->handle;
    }

    TRACE("Returning %u devices.\n", *count);
    return *count < instance->phys_dev_count ? VK_INCOMPLETE : VK_SUCCESS;
}

void wine_vkFreeCommandBuffers(VkDevice handle, VkCommandPool command_pool, uint32_t count,
                               const VkCommandBuffer *buffers)
{
    struct wine_device *device = wine_device_from_handle(handle);
    struct wine_cmd_pool *pool = wine_cmd_pool_from_handle(command_pool);

    wine_vk_free_command_buffers(device, pool, count, buffers);
}

static VkQueue wine_vk_device_find_queue(VkDevice handle, const VkDeviceQueueInfo2 *info)
{
    struct wine_device *device = wine_device_from_handle(handle);
    struct wine_queue *queue;
    uint32_t i;

    for (i = 0; i < device->queue_count; i++)
    {
        queue = &device->queues[i];
        if (queue->family_index == info->queueFamilyIndex
                && queue->queue_index == info->queueIndex
                && queue->flags == info->flags)
        {
            return queue->handle;
        }
    }

    return VK_NULL_HANDLE;
}

void wine_vkGetDeviceQueue(VkDevice device, uint32_t family_index, uint32_t queue_index, VkQueue *queue)
{
    VkDeviceQueueInfo2 queue_info;

    queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_INFO_2;
    queue_info.pNext = NULL;
    queue_info.flags = 0;
    queue_info.queueFamilyIndex = family_index;
    queue_info.queueIndex = queue_index;

    *queue = wine_vk_device_find_queue(device, &queue_info);
}

void wine_vkGetDeviceQueue2(VkDevice device, const VkDeviceQueueInfo2 *info, VkQueue *queue)
{
    const VkBaseInStructure *chain;

    if ((chain = info->pNext))
        FIXME("Ignoring a linked structure of type %u.\n", chain->sType);

    *queue = wine_vk_device_find_queue(device, info);
}

VkResult wine_vkCreateCommandPool(VkDevice device_handle, const VkCommandPoolCreateInfo *info,
                                  const VkAllocationCallbacks *allocator, VkCommandPool *command_pool,
                                  void *client_ptr)
{
    struct wine_device *device = wine_device_from_handle(device_handle);
    struct vk_command_pool *handle = client_ptr;
    struct wine_cmd_pool *object;
    VkResult res;

    if (allocator)
        FIXME("Support for allocation callbacks not implemented yet\n");

    if (!(object = calloc(1, sizeof(*object))))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    res = device->funcs.p_vkCreateCommandPool(device->device, info, NULL, &object->command_pool);

    if (res == VK_SUCCESS)
    {
        object->handle = (uintptr_t)handle;
        handle->unix_handle = (uintptr_t)object;
        WINE_VK_ADD_NON_DISPATCHABLE_MAPPING(device->phys_dev->instance, object->handle,
                                             object->command_pool, object);
        *command_pool = object->handle;
    }
    else
    {
        free(object);
    }

    return res;
}

void wine_vkDestroyCommandPool(VkDevice device_handle, VkCommandPool handle,
                               const VkAllocationCallbacks *allocator)
{
    struct wine_device *device = wine_device_from_handle(device_handle);
    struct wine_cmd_pool *pool = wine_cmd_pool_from_handle(handle);

    if (allocator)
        FIXME("Support for allocation callbacks not implemented yet\n");

    WINE_VK_REMOVE_HANDLE_MAPPING(device->phys_dev->instance, pool);

    device->funcs.p_vkDestroyCommandPool(device->device, pool->command_pool, NULL);
    free(pool);
}

static VkResult wine_vk_enumerate_physical_device_groups(struct wine_instance *instance,
        VkResult (*p_vkEnumeratePhysicalDeviceGroups)(VkInstance, uint32_t *, VkPhysicalDeviceGroupProperties *),
        uint32_t *count, VkPhysicalDeviceGroupProperties *properties)
{
    unsigned int i, j;
    VkResult res;

    res = p_vkEnumeratePhysicalDeviceGroups(instance->instance, count, properties);
    if (res < 0 || !properties)
        return res;

    for (i = 0; i < *count; ++i)
    {
        VkPhysicalDeviceGroupProperties *current = &properties[i];
        for (j = 0; j < current->physicalDeviceCount; ++j)
        {
            VkPhysicalDevice dev = current->physicalDevices[j];
            struct wine_phys_dev *phys_dev = wine_vk_instance_wrap_physical_device(instance, dev);
            if (!phys_dev)
                return VK_ERROR_INITIALIZATION_FAILED;
            current->physicalDevices[j] = phys_dev->handle;
        }
    }

    return res;
}

VkResult wine_vkEnumeratePhysicalDeviceGroups(VkInstance handle, uint32_t *count,
                                              VkPhysicalDeviceGroupProperties *properties)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);

    return wine_vk_enumerate_physical_device_groups(instance,
            instance->funcs.p_vkEnumeratePhysicalDeviceGroups, count, properties);
}

VkResult wine_vkEnumeratePhysicalDeviceGroupsKHR(VkInstance handle, uint32_t *count,
                                                 VkPhysicalDeviceGroupProperties *properties)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);

    return wine_vk_enumerate_physical_device_groups(instance,
            instance->funcs.p_vkEnumeratePhysicalDeviceGroupsKHR, count, properties);
}

void wine_vkGetPhysicalDeviceExternalFenceProperties(VkPhysicalDevice phys_dev,
                                                     const VkPhysicalDeviceExternalFenceInfo *fence_info,
                                                     VkExternalFenceProperties *properties)
{
    properties->exportFromImportedHandleTypes = 0;
    properties->compatibleHandleTypes = 0;
    properties->externalFenceFeatures = 0;
}

void wine_vkGetPhysicalDeviceExternalFencePropertiesKHR(VkPhysicalDevice phys_dev,
                                                        const VkPhysicalDeviceExternalFenceInfo *fence_info,
                                                        VkExternalFenceProperties *properties)
{
    properties->exportFromImportedHandleTypes = 0;
    properties->compatibleHandleTypes = 0;
    properties->externalFenceFeatures = 0;
}

void wine_vkGetPhysicalDeviceExternalBufferProperties(VkPhysicalDevice phys_dev,
                                                      const VkPhysicalDeviceExternalBufferInfo *buffer_info,
                                                      VkExternalBufferProperties *properties)
{
    memset(&properties->externalMemoryProperties, 0, sizeof(properties->externalMemoryProperties));
}

void wine_vkGetPhysicalDeviceExternalBufferPropertiesKHR(VkPhysicalDevice phys_dev,
                                                         const VkPhysicalDeviceExternalBufferInfo *buffer_info,
                                                         VkExternalBufferProperties *properties)
{
    memset(&properties->externalMemoryProperties, 0, sizeof(properties->externalMemoryProperties));
}

VkResult wine_vkGetPhysicalDeviceImageFormatProperties2(VkPhysicalDevice phys_dev_handle,
                                                        const VkPhysicalDeviceImageFormatInfo2 *format_info,
                                                        VkImageFormatProperties2 *properties)
{
    struct wine_phys_dev *phys_dev = wine_phys_dev_from_handle(phys_dev_handle);
    VkExternalImageFormatProperties *external_image_properties;
    VkResult res;

    res = phys_dev->instance->funcs.p_vkGetPhysicalDeviceImageFormatProperties2(phys_dev->phys_dev,
            format_info, properties);

    if ((external_image_properties = find_next_struct(properties,
                                                      VK_STRUCTURE_TYPE_EXTERNAL_IMAGE_FORMAT_PROPERTIES)))
    {
        VkExternalMemoryProperties *p = &external_image_properties->externalMemoryProperties;
        p->externalMemoryFeatures = 0;
        p->exportFromImportedHandleTypes = 0;
        p->compatibleHandleTypes = 0;
    }

    return res;
}

VkResult wine_vkGetPhysicalDeviceImageFormatProperties2KHR(VkPhysicalDevice phys_dev_handle,
                                                           const VkPhysicalDeviceImageFormatInfo2 *format_info,
                                                           VkImageFormatProperties2 *properties)
{
    struct wine_phys_dev *phys_dev = wine_phys_dev_from_handle(phys_dev_handle);
    VkExternalImageFormatProperties *external_image_properties;
    VkResult res;

    res = phys_dev->instance->funcs.p_vkGetPhysicalDeviceImageFormatProperties2KHR(phys_dev->phys_dev,
            format_info, properties);

    if ((external_image_properties = find_next_struct(properties,
                                                      VK_STRUCTURE_TYPE_EXTERNAL_IMAGE_FORMAT_PROPERTIES)))
    {
        VkExternalMemoryProperties *p = &external_image_properties->externalMemoryProperties;
        p->externalMemoryFeatures = 0;
        p->exportFromImportedHandleTypes = 0;
        p->compatibleHandleTypes = 0;
    }

    return res;
}

/* From ntdll/unix/sync.c */
#define NANOSECONDS_IN_A_SECOND 1000000000
#define TICKSPERSEC             10000000

static inline VkTimeDomainEXT get_performance_counter_time_domain(void)
{
#if !defined(__APPLE__) && defined(HAVE_CLOCK_GETTIME)
# ifdef CLOCK_MONOTONIC_RAW
    return VK_TIME_DOMAIN_CLOCK_MONOTONIC_RAW_EXT;
# else
    return VK_TIME_DOMAIN_CLOCK_MONOTONIC_EXT;
# endif
#else
    FIXME("No mapping for VK_TIME_DOMAIN_QUERY_PERFORMANCE_COUNTER_EXT on this platform.\n");
    return VK_TIME_DOMAIN_QUERY_PERFORMANCE_COUNTER_EXT;
#endif
}

static VkTimeDomainEXT map_to_host_time_domain(VkTimeDomainEXT domain)
{
    /* Matches ntdll/unix/sync.c's performance counter implementation. */
    if (domain == VK_TIME_DOMAIN_QUERY_PERFORMANCE_COUNTER_EXT)
        return get_performance_counter_time_domain();

    return domain;
}

static inline uint64_t convert_monotonic_timestamp(uint64_t value)
{
    return value / (NANOSECONDS_IN_A_SECOND / TICKSPERSEC);
}

static inline uint64_t convert_timestamp(VkTimeDomainEXT host_domain, VkTimeDomainEXT target_domain, uint64_t value)
{
    if (host_domain == target_domain)
        return value;

    /* Convert between MONOTONIC time in ns -> QueryPerformanceCounter */
    if ((host_domain == VK_TIME_DOMAIN_CLOCK_MONOTONIC_RAW_EXT || host_domain == VK_TIME_DOMAIN_CLOCK_MONOTONIC_EXT)
            && target_domain == VK_TIME_DOMAIN_QUERY_PERFORMANCE_COUNTER_EXT)
        return convert_monotonic_timestamp(value);

    FIXME("Couldn't translate between host domain %d and target domain %d\n", host_domain, target_domain);
    return value;
}

VkResult wine_vkGetCalibratedTimestampsEXT(VkDevice handle, uint32_t timestamp_count,
                                           const VkCalibratedTimestampInfoEXT *timestamp_infos,
                                           uint64_t *timestamps, uint64_t *max_deviation)
{
    struct wine_device *device = wine_device_from_handle(handle);
    VkCalibratedTimestampInfoEXT* host_timestamp_infos;
    unsigned int i;
    VkResult res;
    TRACE("%p, %u, %p, %p, %p\n", device, timestamp_count, timestamp_infos, timestamps, max_deviation);

    if (!(host_timestamp_infos = malloc(sizeof(VkCalibratedTimestampInfoEXT) * timestamp_count)))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    for (i = 0; i < timestamp_count; i++)
    {
        host_timestamp_infos[i].sType = timestamp_infos[i].sType;
        host_timestamp_infos[i].pNext = timestamp_infos[i].pNext;
        host_timestamp_infos[i].timeDomain = map_to_host_time_domain(timestamp_infos[i].timeDomain);
    }

    res = device->funcs.p_vkGetCalibratedTimestampsEXT(device->device, timestamp_count, host_timestamp_infos, timestamps, max_deviation);
    if (res != VK_SUCCESS)
        return res;

    for (i = 0; i < timestamp_count; i++)
        timestamps[i] = convert_timestamp(host_timestamp_infos[i].timeDomain, timestamp_infos[i].timeDomain, timestamps[i]);

    free(host_timestamp_infos);

    return res;
}

VkResult wine_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT(VkPhysicalDevice handle,
                                                             uint32_t *time_domain_count,
                                                             VkTimeDomainEXT *time_domains)
{
    struct wine_phys_dev *phys_dev = wine_phys_dev_from_handle(handle);
    BOOL supports_device = FALSE, supports_monotonic = FALSE, supports_monotonic_raw = FALSE;
    const VkTimeDomainEXT performance_counter_domain = get_performance_counter_time_domain();
    VkTimeDomainEXT *host_time_domains;
    uint32_t host_time_domain_count;
    VkTimeDomainEXT out_time_domains[2];
    uint32_t out_time_domain_count;
    unsigned int i;
    VkResult res;

    /* Find out the time domains supported on the host */
    res = phys_dev->instance->funcs.p_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT(phys_dev->phys_dev, &host_time_domain_count, NULL);
    if (res != VK_SUCCESS)
        return res;

    if (!(host_time_domains = malloc(sizeof(VkTimeDomainEXT) * host_time_domain_count)))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    res = phys_dev->instance->funcs.p_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT(phys_dev->phys_dev, &host_time_domain_count, host_time_domains);
    if (res != VK_SUCCESS)
    {
        free(host_time_domains);
        return res;
    }

    for (i = 0; i < host_time_domain_count; i++)
    {
        if (host_time_domains[i] == VK_TIME_DOMAIN_DEVICE_EXT)
            supports_device = TRUE;
        else if (host_time_domains[i] == VK_TIME_DOMAIN_CLOCK_MONOTONIC_EXT)
            supports_monotonic = TRUE;
        else if (host_time_domains[i] == VK_TIME_DOMAIN_CLOCK_MONOTONIC_RAW_EXT)
            supports_monotonic_raw = TRUE;
        else
            FIXME("Unknown time domain %d\n", host_time_domains[i]);
    }

    free(host_time_domains);

    out_time_domain_count = 0;

    /* Map our monotonic times -> QPC */
    if (supports_monotonic_raw && performance_counter_domain == VK_TIME_DOMAIN_CLOCK_MONOTONIC_RAW_EXT)
        out_time_domains[out_time_domain_count++] = VK_TIME_DOMAIN_QUERY_PERFORMANCE_COUNTER_EXT;
    else if (supports_monotonic && performance_counter_domain == VK_TIME_DOMAIN_CLOCK_MONOTONIC_EXT)
        out_time_domains[out_time_domain_count++] = VK_TIME_DOMAIN_QUERY_PERFORMANCE_COUNTER_EXT;
    else
        FIXME("VK_TIME_DOMAIN_QUERY_PERFORMANCE_COUNTER_EXT not supported on this platform.\n");

    /* Forward the device domain time */
    if (supports_device)
        out_time_domains[out_time_domain_count++] = VK_TIME_DOMAIN_DEVICE_EXT;

    /* Send the count/domains back to the app */
    if (!time_domains)
    {
        *time_domain_count = out_time_domain_count;
        return VK_SUCCESS;
    }

    for (i = 0; i < min(*time_domain_count, out_time_domain_count); i++)
        time_domains[i] = out_time_domains[i];

    res = *time_domain_count < out_time_domain_count ? VK_INCOMPLETE : VK_SUCCESS;
    *time_domain_count = out_time_domain_count;
    return res;
}

void wine_vkGetPhysicalDeviceExternalSemaphoreProperties(VkPhysicalDevice phys_dev,
                                                         const VkPhysicalDeviceExternalSemaphoreInfo *info,
                                                         VkExternalSemaphoreProperties *properties)
{
    properties->exportFromImportedHandleTypes = 0;
    properties->compatibleHandleTypes = 0;
    properties->externalSemaphoreFeatures = 0;
}

void wine_vkGetPhysicalDeviceExternalSemaphorePropertiesKHR(VkPhysicalDevice phys_dev,
                                                            const VkPhysicalDeviceExternalSemaphoreInfo *info,
                                                            VkExternalSemaphoreProperties *properties)
{
    properties->exportFromImportedHandleTypes = 0;
    properties->compatibleHandleTypes = 0;
    properties->externalSemaphoreFeatures = 0;
}

VkResult wine_vkCreateWin32SurfaceKHR(VkInstance handle, const VkWin32SurfaceCreateInfoKHR *createInfo,
                                      const VkAllocationCallbacks *allocator, VkSurfaceKHR *surface)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);
    struct wine_surface *object;
    VkResult res;

    if (allocator)
        FIXME("Support for allocation callbacks not implemented yet\n");

    object = calloc(1, sizeof(*object));

    if (!object)
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    res = instance->funcs.p_vkCreateWin32SurfaceKHR(instance->instance, createInfo, NULL, &object->driver_surface);

    if (res != VK_SUCCESS)
    {
        free(object);
        return res;
    }

    object->surface = vk_funcs->p_wine_get_native_surface(object->driver_surface);

    WINE_VK_ADD_NON_DISPATCHABLE_MAPPING(instance, object, object->surface, object);

    *surface = wine_surface_to_handle(object);

    return VK_SUCCESS;
}

void wine_vkDestroySurfaceKHR(VkInstance handle, VkSurfaceKHR surface,
                              const VkAllocationCallbacks *allocator)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);
    struct wine_surface *object = wine_surface_from_handle(surface);

    if (!object)
        return;

    instance->funcs.p_vkDestroySurfaceKHR(instance->instance, object->driver_surface, NULL);

    WINE_VK_REMOVE_HANDLE_MAPPING(instance, object);
    free(object);
}

VkResult wine_vkAllocateMemory(VkDevice handle, const VkMemoryAllocateInfo *alloc_info,
                               const VkAllocationCallbacks *allocator, VkDeviceMemory *ret)
{
    struct wine_device *device = wine_device_from_handle(handle);
    struct wine_device_memory *memory;
    VkMemoryAllocateInfo info = *alloc_info;
    VkImportMemoryHostPointerInfoEXT host_pointer_info;
    uint32_t mem_flags;
    void *mapping = NULL;
    VkResult result;

    /* For host visible memory, we try to use VK_EXT_external_memory_host on wow64
     * to ensure that mapped pointer is 32-bit. */
    mem_flags = device->phys_dev->memory_properties.memoryTypes[alloc_info->memoryTypeIndex].propertyFlags;
    if (device->phys_dev->external_memory_align && (mem_flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) &&
        !find_next_struct(alloc_info->pNext, VK_STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT))
    {
        VkMemoryHostPointerPropertiesEXT props =
        {
            .sType = VK_STRUCTURE_TYPE_MEMORY_HOST_POINTER_PROPERTIES_EXT,
        };
        uint32_t i, align = device->phys_dev->external_memory_align - 1;
        SIZE_T alloc_size = info.allocationSize;
        static int once;

        if (!once++)
            FIXME("Using VK_EXT_external_memory_host\n");

        if (NtAllocateVirtualMemory(GetCurrentProcess(), &mapping, zero_bits(), &alloc_size,
                                    MEM_COMMIT, PAGE_READWRITE))
        {
            ERR("NtAllocateVirtualMemory failed\n");
            return VK_ERROR_OUT_OF_HOST_MEMORY;
        }

        result = device->funcs.p_vkGetMemoryHostPointerPropertiesEXT(device->device,
                VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT, mapping, &props);
        if (result != VK_SUCCESS)
        {
            ERR("vkGetMemoryHostPointerPropertiesEXT failed: %d\n", result);
            return result;
        }

        if (!(props.memoryTypeBits & (1u << info.memoryTypeIndex)))
        {
            /* If requested memory type is not allowed to use external memory,
             * try to find a supported compatible type. */
            uint32_t mask = mem_flags & ~VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
            for (i = 0; i < device->phys_dev->memory_properties.memoryTypeCount; i++)
            {
                if (!(props.memoryTypeBits & (1u << i)))
                    continue;
                if ((device->phys_dev->memory_properties.memoryTypes[i].propertyFlags & mask) != mask)
                    continue;

                TRACE("Memory type not compatible with host memory, using %u instead\n", i);
                info.memoryTypeIndex = i;
                break;
            }
            if (i == device->phys_dev->memory_properties.memoryTypeCount)
            {
                FIXME("Not found compatible memory type\n");
                alloc_size = 0;
                NtFreeVirtualMemory(GetCurrentProcess(), &mapping, &alloc_size, MEM_RELEASE);
            }
        }

        if (props.memoryTypeBits & (1u << info.memoryTypeIndex))
        {
            host_pointer_info.sType = VK_STRUCTURE_TYPE_IMPORT_MEMORY_HOST_POINTER_INFO_EXT;
            host_pointer_info.handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT;
            host_pointer_info.pHostPointer = mapping;
            host_pointer_info.pNext = info.pNext;
            info.pNext = &host_pointer_info;

            info.allocationSize = (info.allocationSize + align) & ~align;
        }
    }

    if (!(memory = malloc(sizeof(*memory))))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    result = device->funcs.p_vkAllocateMemory(device->device, &info, NULL, &memory->memory);
    if (result != VK_SUCCESS)
    {
        free(memory);
        return result;
    }

    memory->mapping = mapping;
    *ret = (VkDeviceMemory)(uintptr_t)memory;
    return VK_SUCCESS;
}

void wine_vkFreeMemory(VkDevice handle, VkDeviceMemory memory_handle, const VkAllocationCallbacks *allocator)
{
    struct wine_device *device = wine_device_from_handle(handle);
    struct wine_device_memory *memory;

    if (!memory_handle)
        return;
    memory = wine_device_memory_from_handle(memory_handle);

    device->funcs.p_vkFreeMemory(device->device, memory->memory, NULL);

    if (memory->mapping)
    {
        SIZE_T alloc_size = 0;
        NtFreeVirtualMemory(GetCurrentProcess(), &memory->mapping, &alloc_size, MEM_RELEASE);
    }

    free(memory);
}

VkResult wine_vkMapMemory(VkDevice handle, VkDeviceMemory memory_handle, VkDeviceSize offset,
                          VkDeviceSize size, VkMemoryMapFlags flags, void **data)
{
    struct wine_device *device = wine_device_from_handle(handle);
    struct wine_device_memory *memory = wine_device_memory_from_handle(memory_handle);
    VkResult result;

    if (memory->mapping)
    {
        *data = (char *)memory->mapping + offset;
        TRACE("returning %p\n", *data);
        return VK_SUCCESS;
    }

    result = device->funcs.p_vkMapMemory(device->device, memory->memory, offset, size, flags, data);

#ifdef _WIN64
    if (NtCurrentTeb()->WowTebOffset && result == VK_SUCCESS && (UINT_PTR)*data >> 32)
    {
        FIXME("returned mapping %p does not fit 32-bit pointer\n", *data);
        device->funcs.p_vkUnmapMemory(device->device, memory->memory);
        *data = NULL;
        result = VK_ERROR_OUT_OF_HOST_MEMORY;
    }
#endif

    return result;
}

void wine_vkUnmapMemory(VkDevice handle, VkDeviceMemory memory_handle)
{
    struct wine_device *device = wine_device_from_handle(handle);
    struct wine_device_memory *memory = wine_device_memory_from_handle(memory_handle);

    if (!memory->mapping)
        device->funcs.p_vkUnmapMemory(device->device, memory->memory);
}

VkResult wine_vkCreateBuffer(VkDevice handle, const VkBufferCreateInfo *create_info,
                             const VkAllocationCallbacks *allocator, VkBuffer *buffer)
{
    struct wine_device *device = wine_device_from_handle(handle);
    VkExternalMemoryBufferCreateInfo external_memory_info;
    VkBufferCreateInfo info = *create_info;

    if (device->phys_dev->external_memory_align &&
        !find_next_struct(info.pNext, VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_BUFFER_CREATE_INFO))
    {
        external_memory_info.sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_BUFFER_CREATE_INFO;
        external_memory_info.pNext = info.pNext;
        external_memory_info.handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT;
        info.pNext = &external_memory_info;
    }

    return device->funcs.p_vkCreateBuffer(device->device, &info, NULL, buffer);
}

VkResult wine_vkCreateImage(VkDevice handle, const VkImageCreateInfo *create_info,
                            const VkAllocationCallbacks *allocator, VkImage *image)
{
    struct wine_device *device = wine_device_from_handle(handle);
    VkExternalMemoryImageCreateInfo external_memory_info;
    VkImageCreateInfo info = *create_info;

    if (device->phys_dev->external_memory_align &&
        !find_next_struct(info.pNext, VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO))
    {
        external_memory_info.sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO;
        external_memory_info.pNext = info.pNext;
        external_memory_info.handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT;
        info.pNext = &external_memory_info;
    }

    return device->funcs.p_vkCreateImage(device->device, &info, NULL, image);
}

static inline void adjust_max_image_count(struct wine_phys_dev *phys_dev, VkSurfaceCapabilitiesKHR* capabilities)
{
    /* Many Windows games, for example Strange Brigade, No Man's Sky, Path of Exile
     * and World War Z, do not expect that maxImageCount can be set to 0.
     * A value of 0 means that there is no limit on the number of images.
     * Nvidia reports 8 on Windows, AMD 16.
     * https://vulkan.gpuinfo.org/displayreport.php?id=9122#surface
     * https://vulkan.gpuinfo.org/displayreport.php?id=9121#surface
     */
    if ((phys_dev->instance->quirks & WINEVULKAN_QUIRK_ADJUST_MAX_IMAGE_COUNT) && !capabilities->maxImageCount)
    {
        capabilities->maxImageCount = max(capabilities->minImageCount, 16);
    }
}

VkResult wine_vkGetPhysicalDeviceSurfaceCapabilitiesKHR(VkPhysicalDevice handle, VkSurfaceKHR surface_handle,
                                                        VkSurfaceCapabilitiesKHR *capabilities)
{
    struct wine_phys_dev *phys_dev = wine_phys_dev_from_handle(handle);
    struct wine_surface *surface = wine_surface_from_handle(surface_handle);
    VkResult res;

    res = phys_dev->instance->funcs.p_vkGetPhysicalDeviceSurfaceCapabilitiesKHR(phys_dev->phys_dev,
            surface->driver_surface, capabilities);

    if (res == VK_SUCCESS)
        adjust_max_image_count(phys_dev, capabilities);

    return res;
}

VkResult wine_vkGetPhysicalDeviceSurfaceCapabilities2KHR(VkPhysicalDevice handle,
                                                         const VkPhysicalDeviceSurfaceInfo2KHR *surface_info,
                                                         VkSurfaceCapabilities2KHR *capabilities)
{
    struct wine_phys_dev *phys_dev = wine_phys_dev_from_handle(handle);
    struct wine_surface *surface = wine_surface_from_handle(surface_info->surface);
    VkPhysicalDeviceSurfaceInfo2KHR host_info;
    VkResult res;

    host_info.sType = surface_info->sType;
    host_info.pNext = surface_info->pNext;
    host_info.surface = surface->driver_surface;
    res = phys_dev->instance->funcs.p_vkGetPhysicalDeviceSurfaceCapabilities2KHR(phys_dev->phys_dev,
            &host_info, capabilities);

    if (res == VK_SUCCESS)
        adjust_max_image_count(phys_dev, &capabilities->surfaceCapabilities);

    return res;
}

VkResult wine_vkCreateDebugUtilsMessengerEXT(VkInstance handle,
                                             const VkDebugUtilsMessengerCreateInfoEXT *create_info,
                                             const VkAllocationCallbacks *allocator,
                                             VkDebugUtilsMessengerEXT *messenger)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);
    VkDebugUtilsMessengerCreateInfoEXT wine_create_info;
    struct wine_debug_utils_messenger *object;
    VkResult res;

    if (allocator)
        FIXME("Support for allocation callbacks not implemented yet\n");

    if (!(object = calloc(1, sizeof(*object))))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    object->instance = instance;
    object->user_callback = create_info->pfnUserCallback;
    object->user_data = create_info->pUserData;

    wine_create_info = *create_info;

    wine_create_info.pfnUserCallback = (void *) &debug_utils_callback_conversion;
    wine_create_info.pUserData = object;

    res = instance->funcs.p_vkCreateDebugUtilsMessengerEXT(instance->instance, &wine_create_info, NULL,  &object->debug_messenger);

    if (res != VK_SUCCESS)
    {
        free(object);
        return res;
    }

    WINE_VK_ADD_NON_DISPATCHABLE_MAPPING(instance, object, object->debug_messenger, object);
    *messenger = wine_debug_utils_messenger_to_handle(object);

    return VK_SUCCESS;
}

void wine_vkDestroyDebugUtilsMessengerEXT(VkInstance handle, VkDebugUtilsMessengerEXT messenger,
                                          const VkAllocationCallbacks *allocator)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);
    struct wine_debug_utils_messenger *object;

    object = wine_debug_utils_messenger_from_handle(messenger);

    if (!object)
        return;

    instance->funcs.p_vkDestroyDebugUtilsMessengerEXT(instance->instance, object->debug_messenger, NULL);
    WINE_VK_REMOVE_HANDLE_MAPPING(instance, object);

    free(object);
}

VkResult wine_vkCreateDebugReportCallbackEXT(VkInstance handle,
                                             const VkDebugReportCallbackCreateInfoEXT *create_info,
                                             const VkAllocationCallbacks *allocator,
                                             VkDebugReportCallbackEXT *callback)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);
    VkDebugReportCallbackCreateInfoEXT wine_create_info;
    struct wine_debug_report_callback *object;
    VkResult res;

    if (allocator)
        FIXME("Support for allocation callbacks not implemented yet\n");

    if (!(object = calloc(1, sizeof(*object))))
        return VK_ERROR_OUT_OF_HOST_MEMORY;

    object->instance = instance;
    object->user_callback = create_info->pfnCallback;
    object->user_data = create_info->pUserData;

    wine_create_info = *create_info;

    wine_create_info.pfnCallback = (void *) debug_report_callback_conversion;
    wine_create_info.pUserData = object;

    res = instance->funcs.p_vkCreateDebugReportCallbackEXT(instance->instance, &wine_create_info, NULL, &object->debug_callback);

    if (res != VK_SUCCESS)
    {
        free(object);
        return res;
    }

    WINE_VK_ADD_NON_DISPATCHABLE_MAPPING(instance, object, object->debug_callback, object);
    *callback = wine_debug_report_callback_to_handle(object);

    return VK_SUCCESS;
}

void wine_vkDestroyDebugReportCallbackEXT(VkInstance handle, VkDebugReportCallbackEXT callback,
                                          const VkAllocationCallbacks *allocator)
{
    struct wine_instance *instance = wine_instance_from_handle(handle);
    struct wine_debug_report_callback *object;

    object = wine_debug_report_callback_from_handle(callback);

    if (!object)
        return;

    instance->funcs.p_vkDestroyDebugReportCallbackEXT(instance->instance, object->debug_callback, NULL);

    WINE_VK_REMOVE_HANDLE_MAPPING(instance, object);

    free(object);
}

#ifdef _WIN64

NTSTATUS vk_is_available_instance_function(void *arg)
{
    struct is_available_instance_function_params *params = arg;
    struct wine_instance *instance = wine_instance_from_handle(params->instance);
    return !!vk_funcs->p_vkGetInstanceProcAddr(instance->instance, params->name);
}

NTSTATUS vk_is_available_device_function(void *arg)
{
    struct is_available_device_function_params *params = arg;
    struct wine_device *device = wine_device_from_handle(params->device);
    return !!vk_funcs->p_vkGetDeviceProcAddr(device->device, params->name);
}

#endif /* _WIN64 */

NTSTATUS vk_is_available_instance_function32(void *arg)
{
    struct
    {
        UINT32 instance;
        UINT32 name;
    } *params = arg;
    struct wine_instance *instance = wine_instance_from_handle(UlongToPtr(params->instance));
    return !!vk_funcs->p_vkGetInstanceProcAddr(instance->instance, UlongToPtr(params->name));
}

NTSTATUS vk_is_available_device_function32(void *arg)
{
    struct
    {
        UINT32 device;
        UINT32 name;
    } *params = arg;
    struct wine_device *device = wine_device_from_handle(UlongToPtr(params->device));
    return !!vk_funcs->p_vkGetDeviceProcAddr(device->device, UlongToPtr(params->name));
}