vulkan/wsi: Implement VK_KHR_swapchain_mutable_format

This is only the core WSI code for the extension.  It adds the image
format list and the flags to vkCreateImage as well as handling things
properly in the modifier queries.

Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Reviewed-by: Lionel Landwerlin <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3434>

1 files changed, 32 insertions, 1 deletions

diff --git a/src/vulkan/wsi/wsi_common.c b/src/vulkan/wsi/wsi_common.c
index 216b3cafc79..dfc90b5900d 100644
--- a/src/vulkan/wsi/wsi_common.c
+++ b/src/vulkan/wsi/wsi_common.c
@@ -373,6 +373,29 @@ wsi_create_native_image(const struct wsi_swapchain *chain,
       .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
    };
 
+   VkImageFormatListCreateInfoKHR image_format_list;
+   if (pCreateInfo->flags & VK_SWAPCHAIN_CREATE_MUTABLE_FORMAT_BIT_KHR) {
+      image_info.flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT |
+                          VK_IMAGE_CREATE_EXTENDED_USAGE_BIT_KHR;
+
+      const VkImageFormatListCreateInfoKHR *format_list =
+         vk_find_struct_const(pCreateInfo->pNext,
+                              IMAGE_FORMAT_LIST_CREATE_INFO_KHR);
+
+#ifndef NDEBUG
+      assume(format_list && format_list->viewFormatCount > 0);
+      bool format_found = false;
+      for (int i = 0; i < format_list->viewFormatCount; i++)
+         if (pCreateInfo->imageFormat == format_list->pViewFormats[i])
+            format_found = true;
+      assert(format_found);
+#endif
+
+      image_format_list = *format_list;
+      image_format_list.pNext = NULL;
+      __vk_append_struct(&image_info, &image_format_list);
+   }
+
    struct wsi_image_create_info image_wsi_info;
    VkImageDrmFormatModifierListCreateInfoEXT image_modifier_list;
 
@@ -433,8 +456,16 @@ wsi_create_native_image(const struct wsi_swapchain *chain,
             .type = VK_IMAGE_TYPE_2D,
             .tiling = VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT,
             .usage = pCreateInfo->imageUsage,
-            .flags = 0,
+            .flags = image_info.flags,
          };
+
+         VkImageFormatListCreateInfoKHR format_list;
+         if (image_info.flags & VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT) {
+            format_list = image_format_list;
+            format_list.pNext = NULL;
+            __vk_append_struct(&format_info, &format_list);
+         }
+
          VkImageFormatProperties2 format_props = {
             .sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2,
             .pNext = NULL,