From d8f21091bd6ac0d979cf1aad89164887718231cd Mon Sep 17 00:00:00 2001
From: Max Van den Eynde <maxvdec@gmail.com>
Date: Fri, 2 Oct 2026 15:41:55 +0200
Subject: [PATCH] Reject incompatible Metal resolve and copy textures

---
 src/framebuffer.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/framebuffer.cpp b/src/framebuffer.cpp
index beffe58..39150aa 100644
--- a/src/framebuffer.cpp
+++ b/src/framebuffer.cpp
@@ -574,6 +574,13 @@ void CommandBuffer::performResolve(
         if (srcState.texture == nullptr || dstState.texture == nullptr) {
             return;
         }
+        if (srcState.texture->width() != dstState.texture->width() ||
+            srcState.texture->height() != dstState.texture->height() ||
+            srcState.texture->depth() != dstState.texture->depth() ||
+            srcState.texture->arrayLength() !=
+                dstState.texture->arrayLength()) {
+            return;
+        }
 
         MTL::RenderPassDescriptor *descriptor =
             MTL::RenderPassDescriptor::renderPassDescriptor();
@@ -597,6 +604,17 @@ void CommandBuffer::performResolve(
         if (srcState.texture == nullptr || dstState.texture == nullptr) {
             return;
         }
+        if (srcState.texture->width() != dstState.texture->width() ||
+            srcState.texture->height() != dstState.texture->height() ||
+            srcState.texture->depth() != dstState.texture->depth() ||
+            srcState.texture->arrayLength() !=
+                dstState.texture->arrayLength() ||
+            srcState.texture->mipmapLevelCount() !=
+                dstState.texture->mipmapLevelCount() ||
+            srcState.texture->pixelFormat() !=
+                dstState.texture->pixelFormat()) {
+            return;
+        }
         MTL::BlitCommandEncoder *blit = metalCB->blitCommandEncoder();
         blit->copyFromTexture(srcState.texture, dstState.texture);
         blit->endEncoding();