Merge pull request #1086 from cdavis5e/layered-copies-availability
MVKCmdCopyImage: Only use the multi-layer copy method if available.
diff --git a/MoltenVK/MoltenVK/Commands/MVKCmdTransfer.mm b/MoltenVK/MoltenVK/Commands/MVKCmdTransfer.mm
index 00e79dc..817ed19 100644
--- a/MoltenVK/MoltenVK/Commands/MVKCmdTransfer.mm
+++ b/MoltenVK/MoltenVK/Commands/MVKCmdTransfer.mm
@@ -161,7 +161,8 @@
VkExtent3D dstExtent = _dstImage->getExtent3D(dstPlaneIndex, dstLevel);
// If the extent completely covers both images, I can copy all layers at once.
// This will obviously not apply to copies between a 3D and 2D image.
- if (mvkVkExtent3DsAreEqual(srcExtent, vkIC.extent) && mvkVkExtent3DsAreEqual(dstExtent, vkIC.extent)) {
+ if (mvkVkExtent3DsAreEqual(srcExtent, vkIC.extent) && mvkVkExtent3DsAreEqual(dstExtent, vkIC.extent) &&
+ [mtlBlitEnc respondsToSelector: @selector(copyFromTexture:sourceSlice:sourceLevel:toTexture:destinationSlice:destinationLevel:sliceCount:levelCount:)]) {
assert((_srcImage->getMTLTextureType() == MTLTextureType3D) == (_dstImage->getMTLTextureType() == MTLTextureType3D));
[mtlBlitEnc copyFromTexture: srcMTLTex
sourceSlice: srcBaseLayer
