commit 787086351f1833adbea280890ae6ca4ea332f393
author Chip Davis <cdavis@codeweavers.com> Mon Apr 29 23:09:30 2019 -0500
committer Chip Davis <cdavis@codeweavers.com> Wed May 01 09:37:27 2019 -0500
tree 159e88a49f26a169759d810bf4161c2cfae95f34
parent 1b6067910492d8a1574abd45f91a5c0e36e28d7a

MVKBuffer: Force managed storage for linear textures on shared buffers.

Shared storage on textures is disallowed on macOS.

Fixes #573.

MoltenVK/MoltenVK/GPUObjects/MVKBuffer.mm

diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKBuffer.mm b/MoltenVK/MoltenVK/GPUObjects/MVKBuffer.mm
index 6d6f1dc..c022e2a 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKBuffer.mm
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKBuffer.mm
@@ -142,7 +142,16 @@
                                                                                               width: _textureSize.width
                                                                                              height: _textureSize.height
                                                                                           mipmapped: NO];
+#if MVK_MACOS
+        // Textures on Mac cannot use shared storage, so force managed.
+        if (_buffer->getMTLBuffer().storageMode == MTLStorageModeShared) {
+            mtlTexDesc.storageMode = MTLStorageModeManaged;
+        } else {
+            mtlTexDesc.storageMode = _buffer->getMTLBuffer().storageMode;
+        }
+#else
         mtlTexDesc.storageMode = _buffer->getMTLBuffer().storageMode;
+#endif
         mtlTexDesc.cpuCacheMode = _buffer->getMTLBuffer().cpuCacheMode;
         mtlTexDesc.usage = MTLTextureUsageShaderRead;
         if ( mvkIsAnyFlagEnabled(_buffer->getUsage(), VK_BUFFER_USAGE_STORAGE_TEXEL_BUFFER_BIT) ) {