external_memory_win32 apability

Author: xiaopengli89

wgpu-hal/src/vulkan/adapter.rs

@@ -903,6 +903,11 @@ impl PhysicalDeviceProperties {
             if requested_features.contains(wgt::Features::TEXTURE_FORMAT_NV12) {
                 extensions.push(khr::sampler_ycbcr_conversion::NAME);
             }
+
+            // Optional `VK_KHR_external_memory_win32`
+            if self.supports_extension(khr::external_memory_win32::NAME) {
+                extensions.push(khr::external_memory_win32::NAME);
+            }
         }
 
         if self.device_api_version < vk::API_VERSION_1_2 {
@@ -1539,6 +1544,8 @@ impl super::Instance {
                 }),
             image_format_list: phd_capabilities.device_api_version >= vk::API_VERSION_1_2
                 || phd_capabilities.supports_extension(khr::image_format_list::NAME),
+            external_memory_win32: phd_capabilities.device_api_version >= vk::API_VERSION_1_1
+                || phd_capabilities.supports_extension(khr::external_memory_win32::NAME),
         };
         let capabilities = crate::Capabilities {
             limits: phd_capabilities.to_wgpu_limits(),

wgpu-hal/src/vulkan/device.rs

@@ -800,13 +800,19 @@ impl super::Device {
     }
 
     /// # Safety
-    /// The `d3d11_shared_handle` must be valid and respecting `desc`.
+    ///
+    /// - Vulkan 1.1+ (or VK_KHR_external_memory)
+    /// - The `d3d11_shared_handle` must be valid and respecting `desc`
     #[cfg(windows)]
     pub unsafe fn texture_from_d3d11_shared_handle(
         &self,
         d3d11_shared_handle: *mut std::ffi::c_void,
         desc: &crate::TextureDescriptor,
     ) -> Result<super::Texture, crate::DeviceError> {
+        if !self.shared.private_caps.external_memory_win32 {
+            return Err(crate::DeviceError::ResourceCreationFailed);
+        }
+
         let mut external_memory_image_info = vk::ExternalMemoryImageCreateInfo::default()
             .handle_types(vk::ExternalMemoryHandleTypeFlags::D3D11_TEXTURE_KMT);
 

wgpu-hal/src/vulkan/mod.rs

@@ -526,6 +526,7 @@ struct PrivateCapabilities {
     robust_image_access2: bool,
     zero_initialize_workgroup_memory: bool,
     image_format_list: bool,
+    external_memory_win32: bool,
 }
 
 bitflags::bitflags!(