src/amd/vulkan/radv_wsi.c - platform/external/mesa3d - Git at Google

 /*
  * Copyright © 2016 Red Hat
  * based on intel anv code:
  * Copyright © 2015 Intel Corporation
  *
  * 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 (including the next
  * paragraph) 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 "radv_private.h"
 #include "wsi_common.h"

 static const struct wsi_callbacks wsi_cbs = {
    .get_phys_device_format_properties = radv_GetPhysicalDeviceFormatProperties,
 };

 VkResult
 radv_init_wsi(struct radv_physical_device *physical_device)
 {
 	VkResult result;

 	memset(physical_device->wsi_device.wsi, 0, sizeof(physical_device->wsi_device.wsi));

 #ifdef VK_USE_PLATFORM_XCB_KHR
 	result = wsi_x11_init_wsi(&physical_device->wsi_device, &physical_device->instance->alloc);
 	if (result != VK_SUCCESS)
 		return result;
 #endif

 #ifdef VK_USE_PLATFORM_WAYLAND_KHR
 	result = wsi_wl_init_wsi(&physical_device->wsi_device, &physical_device->instance->alloc,
 				 radv_physical_device_to_handle(physical_device),
 				 &wsi_cbs);
 	if (result != VK_SUCCESS) {
 #ifdef VK_USE_PLATFORM_XCB_KHR
 		wsi_x11_finish_wsi(&physical_device->wsi_device, &physical_device->instance->alloc);
 #endif
 		return result;
 	}
 #endif

 	return VK_SUCCESS;
 }

 void
 radv_finish_wsi(struct radv_physical_device *physical_device)
 {
 #ifdef VK_USE_PLATFORM_WAYLAND_KHR
 	wsi_wl_finish_wsi(&physical_device->wsi_device, &physical_device->instance->alloc);
 #endif
 #ifdef VK_USE_PLATFORM_XCB_KHR
 	wsi_x11_finish_wsi(&physical_device->wsi_device, &physical_device->instance->alloc);
 #endif
 }

 void radv_DestroySurfaceKHR(
 	VkInstance                                   _instance,
 	VkSurfaceKHR                                 _surface,
 	const VkAllocationCallbacks*                 pAllocator)
 {
 	RADV_FROM_HANDLE(radv_instance, instance, _instance);
 	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);

 	vk_free2(&instance->alloc, pAllocator, surface);
 }

 VkResult radv_GetPhysicalDeviceSurfaceSupportKHR(
 	VkPhysicalDevice                            physicalDevice,
 	uint32_t                                    queueFamilyIndex,
 	VkSurfaceKHR                                _surface,
 	VkBool32*                                   pSupported)
 {
 	RADV_FROM_HANDLE(radv_physical_device, device, physicalDevice);
 	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
 	struct wsi_interface *iface = device->wsi_device.wsi[surface->platform];

 	return iface->get_support(surface, &device->wsi_device,
 				  &device->instance->alloc,
 				  queueFamilyIndex, pSupported);
 }

 VkResult radv_GetPhysicalDeviceSurfaceCapabilitiesKHR(
 	VkPhysicalDevice                            physicalDevice,
 	VkSurfaceKHR                                _surface,
 	VkSurfaceCapabilitiesKHR*                   pSurfaceCapabilities)
 {
 	RADV_FROM_HANDLE(radv_physical_device, device, physicalDevice);
 	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
 	struct wsi_interface *iface = device->wsi_device.wsi[surface->platform];

 	return iface->get_capabilities(surface, pSurfaceCapabilities);
 }

 VkResult radv_GetPhysicalDeviceSurfaceFormatsKHR(
 	VkPhysicalDevice                            physicalDevice,
 	VkSurfaceKHR                                _surface,
 	uint32_t*                                   pSurfaceFormatCount,
 	VkSurfaceFormatKHR*                         pSurfaceFormats)
 {
 	RADV_FROM_HANDLE(radv_physical_device, device, physicalDevice);
 	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
 	struct wsi_interface *iface = device->wsi_device.wsi[surface->platform];

 	return iface->get_formats(surface, &device->wsi_device, pSurfaceFormatCount,
 				  pSurfaceFormats);
 }

 VkResult radv_GetPhysicalDeviceSurfacePresentModesKHR(
 	VkPhysicalDevice                            physicalDevice,
 	VkSurfaceKHR                                _surface,
 	uint32_t*                                   pPresentModeCount,
 	VkPresentModeKHR*                           pPresentModes)
 {
 	RADV_FROM_HANDLE(radv_physical_device, device, physicalDevice);
 	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
 	struct wsi_interface *iface = device->wsi_device.wsi[surface->platform];

 	return iface->get_present_modes(surface, pPresentModeCount,
 					pPresentModes);
 }

 static VkResult
 radv_wsi_image_create(VkDevice device_h,
 		      const VkSwapchainCreateInfoKHR *pCreateInfo,
 		      const VkAllocationCallbacks* pAllocator,
 		      VkImage *image_p,
 		      VkDeviceMemory *memory_p,
 		      uint32_t *size,
 		      uint32_t *offset,
 		      uint32_t *row_pitch, int *fd_p)
 {
 	struct radv_device *device = radv_device_from_handle(device_h);
 	VkResult result = VK_SUCCESS;
 	struct radeon_surf *surface;
 	VkImage image_h;
 	struct radv_image *image;
 	bool bret;
 	int fd;

 	result = radv_image_create(device_h,
 				   &(struct radv_image_create_info) {
 					   .vk_info =
 						   &(VkImageCreateInfo) {
 						   .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
 						   .imageType = VK_IMAGE_TYPE_2D,
 						   .format = pCreateInfo->imageFormat,
 						   .extent = {
 							   .width = pCreateInfo->imageExtent.width,
 							   .height = pCreateInfo->imageExtent.height,
 							   .depth = 1
 						   },
 						   .mipLevels = 1,
 						   .arrayLayers = 1,
 						   .samples = 1,
 						   /* FIXME: Need a way to use X tiling to allow scanout */
 						   .tiling = VK_IMAGE_TILING_OPTIMAL,
 						   .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
 						   .flags = 0,
 					   },
 						   .scanout = true},
 				   NULL,
 				   &image_h);
 	if (result != VK_SUCCESS)
 		return result;

 	image = radv_image_from_handle(image_h);

 	VkDeviceMemory memory_h;
 	struct radv_device_memory *memory;
 	result = radv_AllocateMemory(device_h,
 				     &(VkMemoryAllocateInfo) {
 					     .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
 						     .allocationSize = image->size,
 						     .memoryTypeIndex = 0,
 						     },
 				     NULL /* XXX: pAllocator */,
 				     &memory_h);
 	if (result != VK_SUCCESS)
 		goto fail_create_image;

 	memory = radv_device_memory_from_handle(memory_h);

 	radv_BindImageMemory(VK_NULL_HANDLE, image_h, memory_h, 0);

 	bret = device->ws->buffer_get_fd(device->ws,
 					 memory->bo, &fd);
 	if (bret == false)
 		goto fail_alloc_memory;

 	{
 		struct radeon_bo_metadata metadata;
 		radv_init_metadata(device, image, &metadata);
 		device->ws->buffer_set_metadata(memory->bo, &metadata);
 	}
 	surface = &image->surface;

 	*image_p = image_h;
 	*memory_p = memory_h;
 	*fd_p = fd;
 	*size = image->size;
 	*offset = image->offset;
 	*row_pitch = surface->level[0].pitch_bytes;
 	return VK_SUCCESS;
  fail_alloc_memory:
 	radv_FreeMemory(device_h, memory_h, pAllocator);

 fail_create_image:
 	radv_DestroyImage(device_h, image_h, pAllocator);

 	return result;
 }

 static void
 radv_wsi_image_free(VkDevice device,
 		    const VkAllocationCallbacks* pAllocator,
 		    VkImage image_h,
 		    VkDeviceMemory memory_h)
 {
 	radv_DestroyImage(device, image_h, pAllocator);

 	radv_FreeMemory(device, memory_h, pAllocator);
 }

 static const struct wsi_image_fns radv_wsi_image_fns = {
    .create_wsi_image = radv_wsi_image_create,
    .free_wsi_image = radv_wsi_image_free,
 };

 VkResult radv_CreateSwapchainKHR(
 	VkDevice                                     _device,
 	const VkSwapchainCreateInfoKHR*              pCreateInfo,
 	const VkAllocationCallbacks*                 pAllocator,
 	VkSwapchainKHR*                              pSwapchain)
 {
 	RADV_FROM_HANDLE(radv_device, device, _device);
 	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, pCreateInfo->surface);
 	struct wsi_interface *iface =
 		device->instance->physicalDevice.wsi_device.wsi[surface->platform];
 	struct wsi_swapchain *swapchain;
 	const VkAllocationCallbacks *alloc;
 	if (pAllocator)
 		alloc = pAllocator;
 	else
 		alloc = &device->alloc;
 	VkResult result = iface->create_swapchain(surface, _device,
 						  &device->instance->physicalDevice.wsi_device,
 						  pCreateInfo,
 						  alloc, &radv_wsi_image_fns,
 						  &swapchain);
 	if (result != VK_SUCCESS)
 		return result;

 	if (pAllocator)
 		swapchain->alloc = *pAllocator;
 	else
 		swapchain->alloc = device->alloc;

 	for (unsigned i = 0; i < ARRAY_SIZE(swapchain->fences); i++)
 		swapchain->fences[i] = VK_NULL_HANDLE;

 	*pSwapchain = wsi_swapchain_to_handle(swapchain);

 	return VK_SUCCESS;
 }

 void radv_DestroySwapchainKHR(
 	VkDevice                                     _device,
 	VkSwapchainKHR                               _swapchain,
 	const VkAllocationCallbacks*                 pAllocator)
 {
 	RADV_FROM_HANDLE(radv_device, device, _device);
 	RADV_FROM_HANDLE(wsi_swapchain, swapchain, _swapchain);
 	const VkAllocationCallbacks *alloc;

 	if (!_swapchain)
 		return;

 	if (pAllocator)
 		alloc = pAllocator;
 	else
 		alloc = &device->alloc;

 	for (unsigned i = 0; i < ARRAY_SIZE(swapchain->fences); i++) {
 		if (swapchain->fences[i] != VK_NULL_HANDLE)
 			radv_DestroyFence(_device, swapchain->fences[i], pAllocator);
 	}

 	swapchain->destroy(swapchain, alloc);
 }

 VkResult radv_GetSwapchainImagesKHR(
 	VkDevice                                     device,
 	VkSwapchainKHR                               _swapchain,
 	uint32_t*                                    pSwapchainImageCount,
 	VkImage*                                     pSwapchainImages)
 {
 	RADV_FROM_HANDLE(wsi_swapchain, swapchain, _swapchain);

 	return swapchain->get_images(swapchain, pSwapchainImageCount,
 				     pSwapchainImages);
 }

 VkResult radv_AcquireNextImageKHR(
 	VkDevice                                     device,
 	VkSwapchainKHR                               _swapchain,
 	uint64_t                                     timeout,
 	VkSemaphore                                  semaphore,
 	VkFence                                      _fence,
 	uint32_t*                                    pImageIndex)
 {
 	RADV_FROM_HANDLE(wsi_swapchain, swapchain, _swapchain);
 	RADV_FROM_HANDLE(radv_fence, fence, _fence);

 	VkResult result = swapchain->acquire_next_image(swapchain, timeout, semaphore,
 	                                                pImageIndex);

 	if (fence && result == VK_SUCCESS) {
 		fence->submitted = true;
 		fence->signalled = true;
 	}

 	return result;
 }

 VkResult radv_QueuePresentKHR(
 	VkQueue                                  _queue,
 	const VkPresentInfoKHR*                  pPresentInfo)
 {
 	RADV_FROM_HANDLE(radv_queue, queue, _queue);
 	VkResult result = VK_SUCCESS;

 	for (uint32_t i = 0; i < pPresentInfo->swapchainCount; i++) {
 		RADV_FROM_HANDLE(wsi_swapchain, swapchain, pPresentInfo->pSwapchains[i]);

 		assert(radv_device_from_handle(swapchain->device) == queue->device);
 		if (swapchain->fences[0] == VK_NULL_HANDLE) {
 			result = radv_CreateFence(radv_device_to_handle(queue->device),
 						  &(VkFenceCreateInfo) {
 							  .sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
 								  .flags = 0,
 								  }, &swapchain->alloc, &swapchain->fences[0]);
 			if (result != VK_SUCCESS)
 				return result;
 		} else {
 			radv_ResetFences(radv_device_to_handle(queue->device),
 					 1, &swapchain->fences[0]);
 		}

 		RADV_FROM_HANDLE(radv_fence, fence, swapchain->fences[0]);
 		struct radeon_winsys_fence *base_fence = fence->fence;
 		struct radeon_winsys_ctx *ctx = queue->hw_ctx;
 		queue->device->ws->cs_submit(ctx, queue->queue_idx,
 					     &queue->device->empty_cs[queue->queue_family_index],
 					     1,
 					     (struct radeon_winsys_sem **)pPresentInfo->pWaitSemaphores,
 					     pPresentInfo->waitSemaphoreCount, NULL, 0, false, base_fence);
 		fence->submitted = true;

 		result = swapchain->queue_present(swapchain,
 						  pPresentInfo->pImageIndices[i]);
 		/* TODO: What if one of them returns OUT_OF_DATE? */
 		if (result != VK_SUCCESS)
 			return result;

 		VkFence last = swapchain->fences[2];
 		swapchain->fences[2] = swapchain->fences[1];
 		swapchain->fences[1] = swapchain->fences[0];
 		swapchain->fences[0] = last;

 		if (last != VK_NULL_HANDLE) {
 			radv_WaitForFences(radv_device_to_handle(queue->device),
 					   1, &last, true, 1);
 		}

 	}

 	return VK_SUCCESS;
 }
	/*
	* Copyright © 2016 Red Hat
	* based on intel anv code:
	* Copyright © 2015 Intel Corporation
	*
	* 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 (including the next
	* paragraph) 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 "radv_private.h"
	#include "wsi_common.h"

	static const struct wsi_callbacks wsi_cbs = {
	.get_phys_device_format_properties = radv_GetPhysicalDeviceFormatProperties,
	};

	VkResult
	radv_init_wsi(struct radv_physical_device *physical_device)
	{
	VkResult result;

	memset(physical_device->wsi_device.wsi, 0, sizeof(physical_device->wsi_device.wsi));

	#ifdef VK_USE_PLATFORM_XCB_KHR
	result = wsi_x11_init_wsi(&physical_device->wsi_device, &physical_device->instance->alloc);
	if (result != VK_SUCCESS)
	return result;
	#endif

	#ifdef VK_USE_PLATFORM_WAYLAND_KHR
	result = wsi_wl_init_wsi(&physical_device->wsi_device, &physical_device->instance->alloc,
	radv_physical_device_to_handle(physical_device),
	&wsi_cbs);
	if (result != VK_SUCCESS) {
	#ifdef VK_USE_PLATFORM_XCB_KHR
	wsi_x11_finish_wsi(&physical_device->wsi_device, &physical_device->instance->alloc);
	#endif
	return result;
	}
	#endif

	return VK_SUCCESS;
	}

	void
	radv_finish_wsi(struct radv_physical_device *physical_device)
	{
	#ifdef VK_USE_PLATFORM_WAYLAND_KHR
	wsi_wl_finish_wsi(&physical_device->wsi_device, &physical_device->instance->alloc);
	#endif
	#ifdef VK_USE_PLATFORM_XCB_KHR
	wsi_x11_finish_wsi(&physical_device->wsi_device, &physical_device->instance->alloc);
	#endif
	}

	void radv_DestroySurfaceKHR(
	VkInstance _instance,
	VkSurfaceKHR _surface,
	const VkAllocationCallbacks* pAllocator)
	{
	RADV_FROM_HANDLE(radv_instance, instance, _instance);
	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);

	vk_free2(&instance->alloc, pAllocator, surface);
	}

	VkResult radv_GetPhysicalDeviceSurfaceSupportKHR(
	VkPhysicalDevice physicalDevice,
	uint32_t queueFamilyIndex,
	VkSurfaceKHR _surface,
	VkBool32* pSupported)
	{
	RADV_FROM_HANDLE(radv_physical_device, device, physicalDevice);
	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
	struct wsi_interface *iface = device->wsi_device.wsi[surface->platform];

	return iface->get_support(surface, &device->wsi_device,
	&device->instance->alloc,
	queueFamilyIndex, pSupported);
	}

	VkResult radv_GetPhysicalDeviceSurfaceCapabilitiesKHR(
	VkPhysicalDevice physicalDevice,
	VkSurfaceKHR _surface,
	VkSurfaceCapabilitiesKHR* pSurfaceCapabilities)
	{
	RADV_FROM_HANDLE(radv_physical_device, device, physicalDevice);
	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
	struct wsi_interface *iface = device->wsi_device.wsi[surface->platform];

	return iface->get_capabilities(surface, pSurfaceCapabilities);
	}

	VkResult radv_GetPhysicalDeviceSurfaceFormatsKHR(
	VkPhysicalDevice physicalDevice,
	VkSurfaceKHR _surface,
	uint32_t* pSurfaceFormatCount,
	VkSurfaceFormatKHR* pSurfaceFormats)
	{
	RADV_FROM_HANDLE(radv_physical_device, device, physicalDevice);
	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
	struct wsi_interface *iface = device->wsi_device.wsi[surface->platform];

	return iface->get_formats(surface, &device->wsi_device, pSurfaceFormatCount,
	pSurfaceFormats);
	}

	VkResult radv_GetPhysicalDeviceSurfacePresentModesKHR(
	VkPhysicalDevice physicalDevice,
	VkSurfaceKHR _surface,
	uint32_t* pPresentModeCount,
	VkPresentModeKHR* pPresentModes)
	{
	RADV_FROM_HANDLE(radv_physical_device, device, physicalDevice);
	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
	struct wsi_interface *iface = device->wsi_device.wsi[surface->platform];

	return iface->get_present_modes(surface, pPresentModeCount,
	pPresentModes);
	}

	static VkResult
	radv_wsi_image_create(VkDevice device_h,
	const VkSwapchainCreateInfoKHR *pCreateInfo,
	const VkAllocationCallbacks* pAllocator,
	VkImage *image_p,
	VkDeviceMemory *memory_p,
	uint32_t *size,
	uint32_t *offset,
	uint32_t row_pitch, int fd_p)
	{
	struct radv_device *device = radv_device_from_handle(device_h);
	VkResult result = VK_SUCCESS;
	struct radeon_surf *surface;
	VkImage image_h;
	struct radv_image *image;
	bool bret;
	int fd;

	result = radv_image_create(device_h,
	&(struct radv_image_create_info) {
	.vk_info =
	&(VkImageCreateInfo) {
	.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
	.imageType = VK_IMAGE_TYPE_2D,
	.format = pCreateInfo->imageFormat,
	.extent = {
	.width = pCreateInfo->imageExtent.width,
	.height = pCreateInfo->imageExtent.height,
	.depth = 1
	},
	.mipLevels = 1,
	.arrayLayers = 1,
	.samples = 1,
	/* FIXME: Need a way to use X tiling to allow scanout */
	.tiling = VK_IMAGE_TILING_OPTIMAL,
	.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
	.flags = 0,
	},
	.scanout = true},
	NULL,
	&image_h);
	if (result != VK_SUCCESS)
	return result;

	image = radv_image_from_handle(image_h);

	VkDeviceMemory memory_h;
	struct radv_device_memory *memory;
	result = radv_AllocateMemory(device_h,
	&(VkMemoryAllocateInfo) {
	.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
	.allocationSize = image->size,
	.memoryTypeIndex = 0,
	},
	NULL /* XXX: pAllocator */,
	&memory_h);
	if (result != VK_SUCCESS)
	goto fail_create_image;

	memory = radv_device_memory_from_handle(memory_h);

	radv_BindImageMemory(VK_NULL_HANDLE, image_h, memory_h, 0);

	bret = device->ws->buffer_get_fd(device->ws,
	memory->bo, &fd);
	if (bret == false)
	goto fail_alloc_memory;

	{
	struct radeon_bo_metadata metadata;
	radv_init_metadata(device, image, &metadata);
	device->ws->buffer_set_metadata(memory->bo, &metadata);
	}
	surface = &image->surface;

	*image_p = image_h;
	*memory_p = memory_h;
	*fd_p = fd;
	*size = image->size;
	*offset = image->offset;
	*row_pitch = surface->level[0].pitch_bytes;
	return VK_SUCCESS;
	fail_alloc_memory:
	radv_FreeMemory(device_h, memory_h, pAllocator);

	fail_create_image:
	radv_DestroyImage(device_h, image_h, pAllocator);

	return result;
	}

	static void
	radv_wsi_image_free(VkDevice device,
	const VkAllocationCallbacks* pAllocator,
	VkImage image_h,
	VkDeviceMemory memory_h)
	{
	radv_DestroyImage(device, image_h, pAllocator);

	radv_FreeMemory(device, memory_h, pAllocator);
	}

	static const struct wsi_image_fns radv_wsi_image_fns = {
	.create_wsi_image = radv_wsi_image_create,
	.free_wsi_image = radv_wsi_image_free,
	};

	VkResult radv_CreateSwapchainKHR(
	VkDevice _device,
	const VkSwapchainCreateInfoKHR* pCreateInfo,
	const VkAllocationCallbacks* pAllocator,
	VkSwapchainKHR* pSwapchain)
	{
	RADV_FROM_HANDLE(radv_device, device, _device);
	ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, pCreateInfo->surface);
	struct wsi_interface *iface =
	device->instance->physicalDevice.wsi_device.wsi[surface->platform];
	struct wsi_swapchain *swapchain;
	const VkAllocationCallbacks *alloc;
	if (pAllocator)
	alloc = pAllocator;
	else
	alloc = &device->alloc;
	VkResult result = iface->create_swapchain(surface, _device,
	&device->instance->physicalDevice.wsi_device,
	pCreateInfo,
	alloc, &radv_wsi_image_fns,
	&swapchain);
	if (result != VK_SUCCESS)
	return result;

	if (pAllocator)
	swapchain->alloc = *pAllocator;
	else
	swapchain->alloc = device->alloc;

	for (unsigned i = 0; i < ARRAY_SIZE(swapchain->fences); i++)
	swapchain->fences[i] = VK_NULL_HANDLE;

	*pSwapchain = wsi_swapchain_to_handle(swapchain);

	return VK_SUCCESS;
	}

	void radv_DestroySwapchainKHR(
	VkDevice _device,
	VkSwapchainKHR _swapchain,
	const VkAllocationCallbacks* pAllocator)
	{
	RADV_FROM_HANDLE(radv_device, device, _device);
	RADV_FROM_HANDLE(wsi_swapchain, swapchain, _swapchain);
	const VkAllocationCallbacks *alloc;

	if (!_swapchain)
	return;

	if (pAllocator)
	alloc = pAllocator;
	else
	alloc = &device->alloc;

	for (unsigned i = 0; i < ARRAY_SIZE(swapchain->fences); i++) {
	if (swapchain->fences[i] != VK_NULL_HANDLE)
	radv_DestroyFence(_device, swapchain->fences[i], pAllocator);
	}

	swapchain->destroy(swapchain, alloc);
	}

	VkResult radv_GetSwapchainImagesKHR(
	VkDevice device,
	VkSwapchainKHR _swapchain,
	uint32_t* pSwapchainImageCount,
	VkImage* pSwapchainImages)
	{
	RADV_FROM_HANDLE(wsi_swapchain, swapchain, _swapchain);

	return swapchain->get_images(swapchain, pSwapchainImageCount,
	pSwapchainImages);
	}

	VkResult radv_AcquireNextImageKHR(
	VkDevice device,
	VkSwapchainKHR _swapchain,
	uint64_t timeout,
	VkSemaphore semaphore,
	VkFence _fence,
	uint32_t* pImageIndex)
	{
	RADV_FROM_HANDLE(wsi_swapchain, swapchain, _swapchain);
	RADV_FROM_HANDLE(radv_fence, fence, _fence);

	VkResult result = swapchain->acquire_next_image(swapchain, timeout, semaphore,
	pImageIndex);

	if (fence && result == VK_SUCCESS) {
	fence->submitted = true;
	fence->signalled = true;
	}

	return result;
	}

	VkResult radv_QueuePresentKHR(
	VkQueue _queue,
	const VkPresentInfoKHR* pPresentInfo)
	{
	RADV_FROM_HANDLE(radv_queue, queue, _queue);
	VkResult result = VK_SUCCESS;

	for (uint32_t i = 0; i < pPresentInfo->swapchainCount; i++) {
	RADV_FROM_HANDLE(wsi_swapchain, swapchain, pPresentInfo->pSwapchains[i]);

	assert(radv_device_from_handle(swapchain->device) == queue->device);
	if (swapchain->fences[0] == VK_NULL_HANDLE) {
	result = radv_CreateFence(radv_device_to_handle(queue->device),
	&(VkFenceCreateInfo) {
	.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
	.flags = 0,
	}, &swapchain->alloc, &swapchain->fences[0]);
	if (result != VK_SUCCESS)
	return result;
	} else {
	radv_ResetFences(radv_device_to_handle(queue->device),
	1, &swapchain->fences[0]);
	}

	RADV_FROM_HANDLE(radv_fence, fence, swapchain->fences[0]);
	struct radeon_winsys_fence *base_fence = fence->fence;
	struct radeon_winsys_ctx *ctx = queue->hw_ctx;
	queue->device->ws->cs_submit(ctx, queue->queue_idx,
	&queue->device->empty_cs[queue->queue_family_index],
	1,
	(struct radeon_winsys_sem **)pPresentInfo->pWaitSemaphores,
	pPresentInfo->waitSemaphoreCount, NULL, 0, false, base_fence);
	fence->submitted = true;

	result = swapchain->queue_present(swapchain,
	pPresentInfo->pImageIndices[i]);
	/* TODO: What if one of them returns OUT_OF_DATE? */
	if (result != VK_SUCCESS)
	return result;

	VkFence last = swapchain->fences[2];
	swapchain->fences[2] = swapchain->fences[1];
	swapchain->fences[1] = swapchain->fences[0];
	swapchain->fences[0] = last;

	if (last != VK_NULL_HANDLE) {
	radv_WaitForFences(radv_device_to_handle(queue->device),
	1, &last, true, 1);
	}

	}

	return VK_SUCCESS;
	}