[PATCH 1/4] vkd3d: Request Vulkan API version 1.1 if available.

[Conor McCarthy]

From: Conor McCarthy

Version 1.1 is required to properly support d3d12 viewports.
---
 libs/vkd3d/device.c        | 11 +++++++++++
 libs/vkd3d/vkd3d_private.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/libs/vkd3d/device.c b/libs/vkd3d/device.c
index 39a5ca01..b4e7193f 100644
--- a/libs/vkd3d/device.c
+++ b/libs/vkd3d/device.c
@@ -522,12 +522,14 @@ static HRESULT vkd3d_instance_init(struct vkd3d_instance *instance,
     const struct vkd3d_optional_instance_extensions_info *optional_extensions;
     const struct vkd3d_application_info *vkd3d_application_info;
     const struct vkd3d_host_time_domain_info *time_domain_info;
+    PFN_vkEnumerateInstanceVersion vkEnumerateInstanceVersion;
     bool *user_extension_supported = NULL;
     VkApplicationInfo application_info;
     VkInstanceCreateInfo instance_info;
     char application_name[PATH_MAX];
     uint32_t extension_count;
     const char **extensions;
+    uint32_t vk_api_version;
     VkInstance vk_instance;
     VkResult vr;
     HRESULT hr;
@@ -580,6 +582,15 @@ static HRESULT vkd3d_instance_init(struct vkd3d_instance *instance,
     application_info.apiVersion = VK_API_VERSION_1_0;
     instance->api_version = VKD3D_API_VERSION_1_0;

+    vkEnumerateInstanceVersion = (void *)vk_global_procs->vkGetInstanceProcAddr(NULL, "vkEnumerateInstanceVersion");
+    if (vkEnumerateInstanceVersion && vkEnumerateInstanceVersion(&vk_api_version) >= 0
+            && vk_api_version >= VK_API_VERSION_1_1)
+    {
+        TRACE("Vulkan API version 1.1 is available; requesting it.\n");
+        application_info.apiVersion = VK_API_VERSION_1_1;
+    }
+    instance->vk_api_version = application_info.apiVersion;
+
     if ((vkd3d_application_info = vkd3d_find_struct(create_info->next, APPLICATION_INFO)))
     {
         if (vkd3d_application_info->application_name)
diff --git a/libs/vkd3d/vkd3d_private.h b/libs/vkd3d/vkd3d_private.h
index 1a277a47..b57af04e 100644
--- a/libs/vkd3d/vkd3d_private.h
+++ b/libs/vkd3d/vkd3d_private.h
@@ -179,6 +179,7 @@ struct vkd3d_instance
     struct vkd3d_vulkan_info vk_info;
     struct vkd3d_vk_global_procs vk_global_procs;
     void *libvulkan;
+    uint32_t vk_api_version;

uint64_t config_flags;
     enum vkd3d_api_version api_version;