Allow passing external_memory in vulkan-hal::Device::texture_from_raw() (#8512)

CHANGELOG.md

@@ -123,6 +123,7 @@ By @SupaMaggie70Incorporated in [#8206](https://github.com/gfx-rs/wgpu/pull/8206
 - Validation errors from `CommandEncoder::finish()` will report the label of the invalid encoder. By @kpreid in [#8449](https://github.com/gfx-rs/wgpu/pull/8449).
 - Corrected documentation of the minimum alignment of the *end* of a mapped range of a buffer (it is 4, not 8). By @kpreid in [#8450](https://github.com/gfx-rs/wgpu/pull/8450).
 - `util::StagingBelt` now takes a `Device` when it is created instead of when it is used. By @kpreid in [#8462](https://github.com/gfx-rs/wgpu/pull/8462).
+- `wgpu_hal::vulkan::Device::texture_from_raw` now takes an `external_memory` argument. By @s-ol in [#8512](https://github.com/gfx-rs/wgpu/pull/8512)
 
 ### Bug Fixes
 

wgpu-hal/src/vulkan/device.rs

@@ -488,11 +488,14 @@ impl super::Device {
     /// - If `drop_callback` is [`None`], wgpu-hal will take ownership of `vk_image`. If
     ///   `drop_callback` is [`Some`], `vk_image` must be valid until the callback is called.
     /// - If the `ImageCreateFlags` does not contain `MUTABLE_FORMAT`, the `view_formats` of `desc` must be empty.
+    /// - If `external_memory` is [`Some`], wgpu-hal will take ownership of the memory (which is presumed to back
+    ///   `vk_image`). If `external_memory` is [`None`], the memory must be valid until `drop_callback` is called.
     pub unsafe fn texture_from_raw(
         &self,
         vk_image: vk::Image,
         desc: &crate::TextureDescriptor,
         drop_callback: Option<crate::DropCallback>,
+        external_memory: Option<vk::DeviceMemory>,
     ) -> super::Texture {
         let mut raw_flags = vk::ImageCreateFlags::empty();
         let mut view_formats = vec![];
@@ -518,7 +521,7 @@ impl super::Device {
         super::Texture {
             raw: vk_image,
             drop_guard,
-            external_memory: None,
+            external_memory,
             block: None,
             format: desc.format,
             copy_size: desc.copy_extent(),