From: Joshua Simmons <josh@nega.tv>
Date: Sat, 1 Jul 2023 09:13:23 +0000 (+0200)
Subject: narcissus-gpu: Fix slice size mismatch
X-Git-Url: https://git.nega.tv//gitweb.cgi?a=commitdiff_plain;h=b775d5f481410d114f8c7e22ba2454349a3f6caf;p=josh%2Fnarcissus

narcissus-gpu: Fix slice size mismatch

It's possible that returned memory is larger than the requested size, so
we need to truncate the destination slice to match the input data.
---

diff --git a/libs/narcissus-gpu/src/backend/vulkan/mod.rs b/libs/narcissus-gpu/src/backend/vulkan/mod.rs
index 7120d2d..c55d435 100644
--- a/libs/narcissus-gpu/src/backend/vulkan/mod.rs
+++ b/libs/narcissus-gpu/src/backend/vulkan/mod.rs
@@ -1673,7 +1673,7 @@ impl VulkanDevice {
             unsafe {
                 let dst =
                     std::slice::from_raw_parts_mut(memory.mapped_ptr(), memory.size().widen());
-                dst.copy_from_slice(initial_data);
+                dst[..desc.size].copy_from_slice(initial_data);
             }
         }