From: Jason Ekstrand Date: Sat, 5 Sep 2015 00:50:32 +0000 (-0700) Subject: vk/wsi: Add Wayland WSI support X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=48e87c01630b8559e4e5ee669b77b8b1d10fd623;p=mesa.git vk/wsi: Add Wayland WSI support --- diff --git a/src/vulkan/Makefile.am b/src/vulkan/Makefile.am index 24e45cf873b..014183c0f71 100644 --- a/src/vulkan/Makefile.am +++ b/src/vulkan/Makefile.am @@ -42,6 +42,7 @@ AM_CPPFLAGS = \ $(DEFINES) \ -I$(top_srcdir)/include \ -I$(top_srcdir)/src \ + -I$(top_srcdir)/src/egl/wayland/wayland-drm \ -I$(top_srcdir)/src/mapi \ -I$(top_srcdir)/src/mesa \ -I$(top_srcdir)/src/mesa/drivers/dri/common \ @@ -74,6 +75,7 @@ VULKAN_SOURCES = \ anv_query.c \ anv_util.c \ anv_wsi.c \ + anv_wsi_wayland.c \ anv_wsi_x11.c \ gen8_state.c \ gen8_cmd_buffer.c \ diff --git a/src/vulkan/anv_wsi.c b/src/vulkan/anv_wsi.c index 24379337a5e..3778a1b20e2 100644 --- a/src/vulkan/anv_wsi.c +++ b/src/vulkan/anv_wsi.c @@ -26,13 +26,27 @@ VkResult anv_init_wsi(struct anv_instance *instance) { + VkResult result; + memset(instance->wsi_impl, 0, sizeof(instance->wsi_impl)); - return anv_x11_init_wsi(instance); + + result = anv_x11_init_wsi(instance); + if (result != VK_SUCCESS) + return result; + + result = anv_wl_init_wsi(instance); + if (result != VK_SUCCESS) { + anv_x11_finish_wsi(instance); + return result; + } + + return VK_SUCCESS; } void anv_finish_wsi(struct anv_instance *instance) { + anv_wl_finish_wsi(instance); anv_x11_finish_wsi(instance); } diff --git a/src/vulkan/anv_wsi.h b/src/vulkan/anv_wsi.h index 3ee3fcee56d..cbff854c2fc 100644 --- a/src/vulkan/anv_wsi.h +++ b/src/vulkan/anv_wsi.h @@ -60,3 +60,5 @@ struct anv_wsi_implementation { VkResult anv_x11_init_wsi(struct anv_instance *instance); void anv_x11_finish_wsi(struct anv_instance *instance); +VkResult anv_wl_init_wsi(struct anv_instance *instance); +void anv_wl_finish_wsi(struct anv_instance *instance); diff --git a/src/vulkan/anv_wsi_wayland.c b/src/vulkan/anv_wsi_wayland.c new file mode 100644 index 00000000000..e23f5933fe4 --- /dev/null +++ b/src/vulkan/anv_wsi_wayland.c @@ -0,0 +1,799 @@ +/* + * 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 +#include + +#include "anv_wsi.h" + +#include + +#define MIN_NUM_IMAGES 2 + +struct wsi_wl_display { + struct wl_display * display; + struct wl_drm * drm; + + /* Vector of VkFormats supported */ + struct anv_vector formats; + + uint32_t capabilities; +}; + +struct wsi_wayland { + struct anv_wsi_implementation base; + + struct anv_instance * instance; + + pthread_mutex_t mutex; + /* Hash table of wl_display -> wsi_wl_display mappings */ + struct hash_table * displays; +}; + +static void +wsi_wl_display_add_vk_format(struct wsi_wl_display *display, VkFormat format) +{ + /* Don't add a format that's already in the list */ + VkFormat *f; + anv_vector_foreach(f, &display->formats) + if (*f == format) + return; + + /* Don't add formats which aren't supported by the driver */ + if (anv_format_for_vk_format(format)->cpp == 0) + return; + + f = anv_vector_add(&display->formats); + if (f) + *f = format; +} + +static void +drm_handle_device(void *data, struct wl_drm *drm, const char *name) +{ + fprintf(stderr, "wl_drm.device(%s)\n", name); +} + +static uint32_t +wl_drm_format_for_vk_format(VkFormat vk_format, bool alpha) +{ + switch (vk_format) { + case VK_FORMAT_R4G4B4A4_UNORM: + return alpha ? WL_DRM_FORMAT_ABGR4444 : WL_DRM_FORMAT_XBGR4444; + case VK_FORMAT_R5G6B5_UNORM: + return WL_DRM_FORMAT_BGR565; + case VK_FORMAT_R5G5B5A1_UNORM: + return alpha ? WL_DRM_FORMAT_ABGR1555 : WL_DRM_FORMAT_XBGR1555; + case VK_FORMAT_R8G8B8_UNORM: + return WL_DRM_FORMAT_XBGR8888; + case VK_FORMAT_R8G8B8A8_UNORM: + return alpha ? WL_DRM_FORMAT_ABGR8888 : WL_DRM_FORMAT_XBGR8888; + case VK_FORMAT_R10G10B10A2_UNORM: + return alpha ? WL_DRM_FORMAT_ABGR2101010 : WL_DRM_FORMAT_XBGR2101010; + case VK_FORMAT_B4G4R4A4_UNORM: + return alpha ? WL_DRM_FORMAT_ARGB4444 : WL_DRM_FORMAT_XRGB4444; + case VK_FORMAT_B5G6R5_UNORM: + return WL_DRM_FORMAT_RGB565; + case VK_FORMAT_B5G5R5A1_UNORM: + return alpha ? WL_DRM_FORMAT_XRGB1555 : WL_DRM_FORMAT_XRGB1555; + case VK_FORMAT_B8G8R8_UNORM: + return WL_DRM_FORMAT_BGRX8888; + case VK_FORMAT_B8G8R8A8_UNORM: + return alpha ? WL_DRM_FORMAT_ARGB8888 : WL_DRM_FORMAT_XRGB8888; + case VK_FORMAT_B10G10R10A2_UNORM: + return alpha ? WL_DRM_FORMAT_ARGB2101010 : WL_DRM_FORMAT_XRGB2101010; + + default: + assert("!Unsupported Vulkan format"); + return 0; + } +} + +static void +drm_handle_format(void *data, struct wl_drm *drm, uint32_t wl_format) +{ + struct wsi_wl_display *display = data; + + switch (wl_format) { + case WL_DRM_FORMAT_ABGR4444: + case WL_DRM_FORMAT_XBGR4444: + wsi_wl_display_add_vk_format(display, VK_FORMAT_R4G4B4A4_UNORM); + break; + case WL_DRM_FORMAT_BGR565: + wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G6B5_UNORM); + break; + case WL_DRM_FORMAT_ABGR1555: + case WL_DRM_FORMAT_XBGR1555: + wsi_wl_display_add_vk_format(display, VK_FORMAT_R5G5B5A1_UNORM); + break; + case WL_DRM_FORMAT_XBGR8888: + wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8_UNORM); + /* fallthrough */ + case WL_DRM_FORMAT_ABGR8888: + wsi_wl_display_add_vk_format(display, VK_FORMAT_R8G8B8A8_UNORM); + break; + case WL_DRM_FORMAT_ABGR2101010: + case WL_DRM_FORMAT_XBGR2101010: + wsi_wl_display_add_vk_format(display, VK_FORMAT_R10G10B10A2_UNORM); + break; + case WL_DRM_FORMAT_ARGB4444: + case WL_DRM_FORMAT_XRGB4444: + wsi_wl_display_add_vk_format(display, VK_FORMAT_B4G4R4A4_UNORM); + break; + case WL_DRM_FORMAT_RGB565: + wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G6R5_UNORM); + break; + case WL_DRM_FORMAT_ARGB1555: + case WL_DRM_FORMAT_XRGB1555: + wsi_wl_display_add_vk_format(display, VK_FORMAT_B5G5R5A1_UNORM); + break; + case WL_DRM_FORMAT_XRGB8888: + wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8_UNORM); + /* fallthrough */ + case WL_DRM_FORMAT_ARGB8888: + wsi_wl_display_add_vk_format(display, VK_FORMAT_B8G8R8A8_UNORM); + break; + case WL_DRM_FORMAT_ARGB2101010: + case WL_DRM_FORMAT_XRGB2101010: + wsi_wl_display_add_vk_format(display, VK_FORMAT_B10G10R10A2_UNORM); + break; + } +} + +static void +drm_handle_authenticated(void *data, struct wl_drm *drm) +{ +} + +static void +drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t capabilities) +{ + struct wsi_wl_display *display = data; + + display->capabilities = capabilities; +} + +static const struct wl_drm_listener drm_listener = { + drm_handle_device, + drm_handle_format, + drm_handle_authenticated, + drm_handle_capabilities, +}; + +static void +registry_handle_global(void *data, struct wl_registry *registry, + uint32_t name, const char *interface, uint32_t version) +{ + struct wsi_wl_display *display = data; + + if (strcmp(interface, "wl_drm") == 0) { + assert(display->drm == NULL); + + assert(version >= 2); + display->drm = wl_registry_bind(registry, name, &wl_drm_interface, 2); + + if (display->drm) + wl_drm_add_listener(display->drm, &drm_listener, display); + } +} + +static void +registry_handle_global_remove(void *data, struct wl_registry *registry, + uint32_t name) +{ /* No-op */ } + +static const struct wl_registry_listener registry_listener = { + registry_handle_global, + registry_handle_global_remove +}; + +static void +wsi_wl_display_destroy(struct wsi_wayland *wsi, struct wsi_wl_display *display) +{ + anv_vector_finish(&display->formats); + if (display->drm) + wl_drm_destroy(display->drm); + anv_instance_free(wsi->instance, display); +} + +static struct wsi_wl_display * +wsi_wl_display_create(struct wsi_wayland *wsi, struct wl_display *wl_display) +{ + struct wsi_wl_display *display = + anv_instance_alloc(wsi->instance, sizeof(*display), 8, + VK_SYSTEM_ALLOC_TYPE_INTERNAL); + if (!display) + return NULL; + + memset(display, 0, sizeof(*display)); + + display->display = wl_display; + + if (!anv_vector_init(&display->formats, sizeof(VkFormat), 8)) + goto fail; + + struct wl_registry *registry = wl_display_get_registry(wl_display); + if (!registry) + return NULL; + + wl_registry_add_listener(registry, ®istry_listener, display); + + /* Round-rip to get the wl_drm global */ + wl_display_roundtrip(wl_display); + + if (!display->drm) + goto fail; + + /* Round-rip to get wl_drm formats and capabilities */ + wl_display_roundtrip(wl_display); + + /* We need prime support */ + if (!(display->capabilities & WL_DRM_CAPABILITY_PRIME)) + goto fail; + + /* We don't need this anymore */ + wl_registry_destroy(registry); + + return display; + +fail: + if (registry) + wl_registry_destroy(registry); + + wsi_wl_display_destroy(wsi, display); + return NULL; +} + +static struct wsi_wl_display * +wsi_wl_get_display(struct wsi_wayland *wsi, struct wl_display *wl_display) +{ + pthread_mutex_lock(&wsi->mutex); + + struct hash_entry *entry = _mesa_hash_table_search(wsi->displays, + wl_display); + if (!entry) { + /* We're about to make a bunch of blocking calls. Let's drop the + * mutex for now so we don't block up too badly. + */ + pthread_mutex_unlock(&wsi->mutex); + + struct wsi_wl_display *display = wsi_wl_display_create(wsi, wl_display); + + pthread_mutex_lock(&wsi->mutex); + + entry = _mesa_hash_table_search(wsi->displays, wl_display); + if (entry) { + /* Oops, someone raced us to it */ + wsi_wl_display_destroy(wsi, display); + } else { + entry = _mesa_hash_table_insert(wsi->displays, wl_display, display); + } + } + + pthread_mutex_unlock(&wsi->mutex); + + return entry->data; +} + +static VkResult +wsi_wl_get_window_supported(struct anv_wsi_implementation *impl, + struct anv_physical_device *physical_device, + const VkSurfaceDescriptionWindowWSI *window, + VkBool32 *pSupported) +{ + struct wsi_wayland *wsi = (struct wsi_wayland *)impl; + + *pSupported = wsi_wl_get_display(wsi, window->pPlatformHandle) != NULL; + + return VK_SUCCESS; +} + +static const VkSurfacePresentModePropertiesWSI present_modes[] = { + { VK_PRESENT_MODE_MAILBOX_WSI }, + { VK_PRESENT_MODE_FIFO_WSI }, +}; + +static VkResult +wsi_wl_get_surface_info(struct anv_wsi_implementation *impl, + struct anv_device *device, + VkSurfaceDescriptionWindowWSI *window, + VkSurfaceInfoTypeWSI infoType, + size_t* pDataSize, void* pData) +{ + struct wsi_wayland *wsi = (struct wsi_wayland *)impl; + + if (pDataSize == NULL) + return vk_error(VK_ERROR_INVALID_POINTER); + + switch (infoType) { + case VK_SURFACE_INFO_TYPE_PROPERTIES_WSI: { + assert(*pDataSize >= sizeof(VkSurfacePropertiesWSI)); + VkSurfacePropertiesWSI *props = pData; + + props->minImageCount = MIN_NUM_IMAGES; + props->maxImageCount = 4; + props->currentExtent = (VkExtent2D) { -1, -1 }; + props->minImageExtent = (VkExtent2D) { 1, 1 }; + props->maxImageExtent = (VkExtent2D) { INT16_MAX, INT16_MAX }; + props->supportedTransforms = VK_SURFACE_TRANSFORM_NONE_BIT_WSI; + props->currentTransform = VK_SURFACE_TRANSFORM_NONE_WSI; + props->maxImageArraySize = 1; + props->supportedUsageFlags = + VK_IMAGE_USAGE_TRANSFER_DESTINATION_BIT | + VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT; + + return VK_SUCCESS; + } + + case VK_SURFACE_INFO_TYPE_FORMATS_WSI: { + VkSurfaceFormatPropertiesWSI *formats = pData; + + struct wsi_wl_display *display = + wsi_wl_get_display(wsi, window->pPlatformHandle); + + uint32_t size = anv_vector_length(&display->formats) * sizeof(*formats); + + if (pData == NULL) { + *pDataSize = size; + return VK_SUCCESS; + } + + assert(*pDataSize >= size); + *pDataSize = size; + + VkFormat *f; + anv_vector_foreach(f, &display->formats) + (formats++)->format = *f; + + return VK_SUCCESS; + } + + case VK_SURFACE_INFO_TYPE_PRESENT_MODES_WSI: + if (pData == NULL) { + *pDataSize = sizeof(present_modes); + return VK_SUCCESS; + } + + assert(*pDataSize >= sizeof(present_modes)); + memcpy(pData, present_modes, *pDataSize); + + return VK_SUCCESS; + default: + return vk_error(VK_ERROR_INVALID_VALUE); + } +} + +struct wsi_wl_image { + struct anv_image * image; + struct anv_device_memory * memory; + struct wl_buffer * buffer; + bool busy; +}; + +struct wsi_wl_swap_chain { + struct anv_swap_chain base; + + struct wsi_wl_display * display; + struct wl_event_queue * queue; + struct wl_surface * surface; + + VkExtent2D extent; + VkFormat vk_format; + uint32_t drm_format; + + VkPresentModeWSI present_mode; + bool fifo_ready; + + uint32_t image_count; + struct wsi_wl_image images[0]; +}; + +static VkResult +wsi_wl_get_swap_chain_info(struct anv_swap_chain *anv_chain, + VkSwapChainInfoTypeWSI infoType, + size_t* pDataSize, void* pData) +{ + struct wsi_wl_swap_chain *chain = (struct wsi_wl_swap_chain *)anv_chain; + size_t size; + + switch (infoType) { + case VK_SWAP_CHAIN_INFO_TYPE_IMAGES_WSI: { + VkSwapChainImagePropertiesWSI *images = pData; + + size = chain->image_count * sizeof(*images); + + if (pData == NULL) { + *pDataSize = size; + return VK_SUCCESS; + } + + assert(size <= *pDataSize); + for (uint32_t i = 0; i < chain->image_count; i++) + images[i].image = anv_image_to_handle(chain->images[i].image); + + *pDataSize = size; + + return VK_SUCCESS; + } + + default: + return vk_error(VK_ERROR_INVALID_VALUE); + } +} + +static VkResult +wsi_wl_acquire_next_image(struct anv_swap_chain *anv_chain, + uint64_t timeout, + VkSemaphore semaphore, + uint32_t *image_index) +{ + struct wsi_wl_swap_chain *chain = (struct wsi_wl_swap_chain *)anv_chain; + + int ret = wl_display_dispatch_queue_pending(chain->display->display, + chain->queue); + /* XXX: I'm not sure if out-of-date is the right error here. If + * wl_display_dispatch_queue_pending fails it most likely means we got + * kicked by the server so this seems more-or-less correct. + */ + if (ret < 0) + return vk_error(VK_ERROR_OUT_OF_DATE_WSI); + + while (1) { + for (uint32_t i = 0; i < chain->image_count; i++) { + if (!chain->images[i].busy) { + /* We found a non-busy image */ + *image_index = i; + return VK_SUCCESS; + } + } + + /* This time we do a blocking dispatch because we can't go + * anywhere until we get an event. + */ + int ret = wl_display_dispatch_queue(chain->display->display, + chain->queue); + if (ret < 0) + return vk_error(VK_ERROR_OUT_OF_DATE_WSI); + } +} + +static void +frame_handle_done(void *data, struct wl_callback *callback, uint32_t serial) +{ + struct wsi_wl_swap_chain *chain = data; + + chain->fifo_ready = true; + + wl_callback_destroy(callback); +} + +static const struct wl_callback_listener frame_listener = { + frame_handle_done, +}; + +static VkResult +wsi_wl_queue_present(struct anv_swap_chain *anv_chain, + struct anv_queue *queue, + uint32_t image_index) +{ + struct wsi_wl_swap_chain *chain = (struct wsi_wl_swap_chain *)anv_chain; + + if (chain->present_mode == VK_PRESENT_MODE_FIFO_WSI) { + while (!chain->fifo_ready) { + int ret = wl_display_dispatch_queue(chain->display->display, + chain->queue); + if (ret < 0) + return vk_error(VK_ERROR_OUT_OF_DATE_WSI); + } + } + + assert(image_index < chain->image_count); + wl_surface_attach(chain->surface, chain->images[image_index].buffer, 0, 0); + wl_surface_damage(chain->surface, 0, 0, INT32_MAX, INT32_MAX); + wl_surface_commit(chain->surface); + + if (chain->present_mode == VK_PRESENT_MODE_FIFO_WSI) { + struct wl_callback *frame = wl_surface_frame(chain->surface); + wl_proxy_set_queue((struct wl_proxy *)frame, chain->queue); + wl_callback_add_listener(frame, &frame_listener, chain); + } + + return VK_SUCCESS; +} + +static void +wsi_wl_image_finish(struct wsi_wl_swap_chain *chain, struct wsi_wl_image *image) +{ + VkDevice vk_device = anv_device_to_handle(chain->base.device); + anv_FreeMemory(vk_device, anv_device_memory_to_handle(image->memory)); + anv_DestroyImage(vk_device, anv_image_to_handle(image->image)); +} + +static void +buffer_handle_release(void *data, struct wl_buffer *buffer) +{ + struct wsi_wl_image *image = data; + + assert(image->buffer == buffer); + + image->busy = false; +} + +static const struct wl_buffer_listener buffer_listener = { + buffer_handle_release, +}; + +static VkResult +wsi_wl_image_init(struct wsi_wl_swap_chain *chain, struct wsi_wl_image *image) +{ + VkDevice vk_device = anv_device_to_handle(chain->base.device); + VkResult result; + + VkImage vk_image; + result = anv_image_create(vk_device, + &(struct anv_image_create_info) { + .force_tile_mode = true, + .tile_mode = XMAJOR, + .stride = 0, + .vk_info = + &(VkImageCreateInfo) { + .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO, + .imageType = VK_IMAGE_TYPE_2D, + .format = chain->vk_format, + .extent = { + .width = chain->extent.width, + .height = chain->extent.height, + .depth = 1 + }, + .mipLevels = 1, + .arraySize = 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, + }}, + &vk_image); + + if (result != VK_SUCCESS) + return result; + + image->image = anv_image_from_handle(vk_image); + assert(anv_format_is_color(image->image->format)); + + struct anv_surface *surface = &image->image->color_surface; + + VkDeviceMemory vk_memory; + result = anv_AllocMemory(vk_device, + &(VkMemoryAllocInfo) { + .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOC_INFO, + .allocationSize = image->image->size, + .memoryTypeIndex = 0, + }, + &vk_memory); + + if (result != VK_SUCCESS) + goto fail_image; + + image->memory = anv_device_memory_from_handle(vk_memory); + + result = anv_BindImageMemory(vk_device, vk_image, vk_memory, 0); + + if (result != VK_SUCCESS) + goto fail_mem; + + int ret = anv_gem_set_tiling(chain->base.device, + image->memory->bo.gem_handle, + surface->stride, I915_TILING_X); + if (ret) { + result = vk_error(VK_ERROR_UNKNOWN); + goto fail_mem; + } + + int fd = anv_gem_handle_to_fd(chain->base.device, + image->memory->bo.gem_handle); + if (fd == -1) { + result = vk_error(VK_ERROR_UNKNOWN); + goto fail_mem; + } + + image->buffer = wl_drm_create_prime_buffer(chain->display->drm, + fd, /* name */ + chain->extent.width, + chain->extent.height, + chain->drm_format, + surface->offset, + surface->stride, + 0, 0, 0, 0 /* unused */); + wl_display_roundtrip(chain->display->display); + close(fd); + + wl_proxy_set_queue((struct wl_proxy *)image->buffer, chain->queue); + wl_buffer_add_listener(image->buffer, &buffer_listener, image); + + return VK_SUCCESS; + +fail_mem: + anv_FreeMemory(vk_device, vk_memory); +fail_image: + anv_DestroyImage(vk_device, vk_image); + + return result; +} + +static VkResult +wsi_wl_destroy_swap_chain(struct anv_swap_chain *anv_chain) +{ + struct wsi_wl_swap_chain *chain = (struct wsi_wl_swap_chain *)anv_chain; + + for (uint32_t i = 0; i < chain->image_count; i++) { + if (chain->images[i].buffer) + wsi_wl_image_finish(chain, &chain->images[i]); + } + + anv_device_free(chain->base.device, chain); + + return VK_SUCCESS; +} + +static VkResult +wsi_wl_create_swap_chain(struct anv_wsi_implementation *impl, + struct anv_device *device, + const VkSwapChainCreateInfoWSI *pCreateInfo, + struct anv_swap_chain **swap_chain_out) +{ + struct wsi_wayland *wsi = (struct wsi_wayland *)impl; + struct wsi_wl_swap_chain *chain; + VkResult result; + + assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAP_CHAIN_CREATE_INFO_WSI); + + assert(pCreateInfo->pSurfaceDescription->sType == + VK_STRUCTURE_TYPE_SURFACE_DESCRIPTION_WINDOW_WSI); + VkSurfaceDescriptionWindowWSI *vk_window = + (VkSurfaceDescriptionWindowWSI *)pCreateInfo->pSurfaceDescription; + assert(vk_window->platform == VK_PLATFORM_WAYLAND_WSI); + + int num_images = pCreateInfo->minImageCount; + + assert(num_images >= MIN_NUM_IMAGES); + + /* For true mailbox mode, we need at least 4 images: + * 1) One to scan out from + * 2) One to have queued for scan-out + * 3) One to be currently held by the Wayland compositor + * 4) One to render to + */ + if (pCreateInfo->presentMode == VK_PRESENT_MODE_MAILBOX_WSI) + num_images = MAX2(num_images, 4); + + size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]); + chain = anv_device_alloc(device, size, 8, + VK_SYSTEM_ALLOC_TYPE_API_OBJECT); + if (chain == NULL) + return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY); + + chain->base.device = device; + chain->base.destroy = wsi_wl_destroy_swap_chain; + chain->base.get_swap_chain_info = wsi_wl_get_swap_chain_info; + chain->base.acquire_next_image = wsi_wl_acquire_next_image; + chain->base.queue_present = wsi_wl_queue_present; + + chain->surface = vk_window->pPlatformWindow; + chain->extent = pCreateInfo->imageExtent; + chain->vk_format = pCreateInfo->imageFormat; + chain->drm_format = wl_drm_format_for_vk_format(chain->vk_format, false); + + chain->present_mode = pCreateInfo->presentMode; + chain->fifo_ready = true; + + chain->image_count = num_images; + + /* Mark a bunch of stuff as NULL. This way we can just call + * destroy_swapchain for cleanup. + */ + for (uint32_t i = 0; i < chain->image_count; i++) + chain->images[i].buffer = NULL; + chain->queue = NULL; + + chain->display = wsi_wl_get_display(wsi, vk_window->pPlatformHandle); + if (!chain->display) + goto fail; + + chain->queue = wl_display_create_queue(chain->display->display); + if (!chain->queue) + goto fail; + + for (uint32_t i = 0; i < chain->image_count; i++) { + result = wsi_wl_image_init(chain, &chain->images[i]); + if (result != VK_SUCCESS) + goto fail; + chain->images[i].busy = false; + } + + *swap_chain_out = &chain->base; + + return VK_SUCCESS; + +fail: + wsi_wl_destroy_swap_chain(&chain->base); + + return result; +} + +VkResult +anv_wl_init_wsi(struct anv_instance *instance) +{ + struct wsi_wayland *wsi; + VkResult result; + + wsi = anv_instance_alloc(instance, sizeof(*wsi), 8, + VK_SYSTEM_ALLOC_TYPE_INTERNAL); + if (!wsi) + return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY); + + wsi->base.get_window_supported = wsi_wl_get_window_supported; + wsi->base.get_surface_info = wsi_wl_get_surface_info; + wsi->base.create_swap_chain = wsi_wl_create_swap_chain; + + wsi->instance = instance; + + int ret = pthread_mutex_init(&wsi->mutex, NULL); + if (ret != 0) { + result = (ret == ENOMEM) ? VK_ERROR_OUT_OF_HOST_MEMORY : + VK_ERROR_UNKNOWN; + goto fail_alloc; + } + + wsi->displays = _mesa_hash_table_create(NULL, _mesa_hash_pointer, + _mesa_key_pointer_equal); + if (!wsi->displays) { + result = VK_ERROR_OUT_OF_HOST_MEMORY; + goto fail_mutex; + } + + instance->wsi_impl[VK_PLATFORM_WAYLAND_WSI] = &wsi->base; + + return VK_SUCCESS; + +fail_mutex: + pthread_mutex_destroy(&wsi->mutex); + +fail_alloc: + anv_instance_free(instance, wsi); + + return result; +} + +void +anv_wl_finish_wsi(struct anv_instance *instance) +{ + struct wsi_wayland *wsi = + (struct wsi_wayland *)instance->wsi_impl[VK_PLATFORM_WAYLAND_WSI]; + + _mesa_hash_table_destroy(wsi->displays, NULL); + + pthread_mutex_destroy(&wsi->mutex); + + anv_instance_free(instance, wsi); +}