From 9c17d0be79834a8ebe2888aed8905bae355cb674 Mon Sep 17 00:00:00 2001
From: jsmall-nvidia <jsmall@nvidia.com>
Date: Fri, 11 Oct 2019 14:14:08 -0400
Subject: Support for unbounded array of arrays  (#1078)

* WIP: Unsized arrays on CPU.

* unbounded-array-of-array working on CPU.

* Remove some left over comments.
---
 source/slang/slang-type-layout.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'source/slang/slang-type-layout.cpp')

diff --git a/source/slang/slang-type-layout.cpp b/source/slang/slang-type-layout.cpp
index 9551cfe4e..ff1f2c147 100644
--- a/source/slang/slang-type-layout.cpp
+++ b/source/slang/slang-type-layout.cpp
@@ -366,6 +366,25 @@ struct CPULayoutRulesImpl : DefaultLayoutRulesImpl
         }
     }
 
+    SimpleArrayLayoutInfo GetArrayLayout( SimpleLayoutInfo elementInfo, LayoutSize elementCount) override
+    {
+        if (elementCount.isInfinite())
+        {
+            // This is an unsized array, get information for element
+            auto info = Super::GetArrayLayout(elementInfo, LayoutSize(1));
+
+            // So it is actually a Array<T> on CPU which is a pointer and a size
+            info.size = sizeof(void*) * 2;
+            info.alignment = sizeof(void*);
+
+            return info;
+        }
+        else
+        {
+            return Super::GetArrayLayout(elementInfo, elementCount);
+        }
+    }
+
     UniformLayoutInfo BeginStructLayout() override
     {
         return Super::BeginStructLayout();
-- 
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