MVKSampler: Ignore addressModeW with unnormalized coordinates.
Some tests intentionally pass an invalid address mode here when
unnormalized coordinates are in use, ostensibly to test that it is
ignored. Metal's validation layer, however, complains if you set
`rAddressMode` to an invalid value, even if `normalizedCoordinates` is
`false`. To avoid this, don't set the `rAddressMode`, since it can't be
used with unnormalized coordinates anyway.
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKImage.mm b/MoltenVK/MoltenVK/GPUObjects/MVKImage.mm
index 8ebf26e..951e6f7 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKImage.mm
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKImage.mm
@@ -1693,7 +1693,9 @@
MTLSamplerDescriptor* mtlSampDesc = [MTLSamplerDescriptor new]; // retained
mtlSampDesc.sAddressMode = mvkMTLSamplerAddressModeFromVkSamplerAddressMode(pCreateInfo->addressModeU);
mtlSampDesc.tAddressMode = mvkMTLSamplerAddressModeFromVkSamplerAddressMode(pCreateInfo->addressModeV);
- mtlSampDesc.rAddressMode = mvkMTLSamplerAddressModeFromVkSamplerAddressMode(pCreateInfo->addressModeW);
+ if (!pCreateInfo->unnormalizedCoordinates) {
+ mtlSampDesc.rAddressMode = mvkMTLSamplerAddressModeFromVkSamplerAddressMode(pCreateInfo->addressModeW);
+ }
mtlSampDesc.minFilter = mvkMTLSamplerMinMagFilterFromVkFilter(pCreateInfo->minFilter);
mtlSampDesc.magFilter = mvkMTLSamplerMinMagFilterFromVkFilter(pCreateInfo->magFilter);
mtlSampDesc.mipFilter = (pCreateInfo->unnormalizedCoordinates
