Fix WSI present on MacOS

As documented at https://developer.apple.com/documentation/quartzcore/cametallayer/1478168-framebufferonly: "If the value is true (the default), the CAMetalLayer class allocates its MTLTexture objects in ways that are optimized for display purposes. However, you may not sample, read from, or write to those textures. To support sampling and pixel read/write operations on the layer’s textures (at a cost to performance), set this value to false." Since we call replaceRegion in MacOSSurfaceMVK::present() to write pixels from system memory, we need to set this flag to false explicitly. Bug: b/137673628 Change-Id: I83e28a2940261d9eedf30d7c96427c23d85ac639 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/36608Tested-by: Nicolas Capens <nicolascapens@google.com> Reviewed-by: Alexis Hétu <sugoi@google.com>

Fix WSI present on MacOS
10cf6655 · Nicolas Capens · Nicolas Capens · 645a8dea · 10cf6655
Commit 10cf6655 authored Sep 24, 2019 by Nicolas Capens Committed by Nicolas Capens Sep 24, 2019
Hide whitespace changes
Inline Side-by-side

Showing with 1 addition and 0 deletions

MacOSSurfaceMVK.mm src/WSI/MacOSSurfaceMVK.mm +1 -0

No files found.
--- a/src/WSI/MacOSSurfaceMVK.mm
+++ b/src/WSI/MacOSSurfaceMVK.mm
@@ -44,6 +44,7 @@ public:
            if ([obj isKindOfClass: [CAMetalLayer class]])
            {
                layer = (CAMetalLayer*)[obj retain];
+                layer.framebufferOnly = false;
            }
            else
            {