Add support for more RasterizerOrdered types (#628)

Fixes #627

The front-end has support for `RasterizerOrderedBuffer` and `RasterizerOrderedTexture*`, but left out support for:

* `RasterizerOrderedByteAddressBuffer`
* `RasterizerOrderedStructuredBuffer`

[Nitpick: these tyeps are all amazingly annoying to type. It is easy to want to write `RasterOrdered` instead of the bulkier `RasterizerOrdered`, and almost everybody does in casual speech. There's already the issue of wanting to type `StructureBuffer` (a buffer of structures) instead of `StructuredBuffer` (a buffer that is... structured?). Then you have `ByteAddressBuffer` which is just adding to the confusion because it is nominally a "byte addressable" buffer (so that `ByteAddressedBuffer` would actually make sense), but then actually *isn't* byte addressable in practice.]

There were a few `TODO` comments related to this already, and this change was mostly a matter of doing a find-in-files for `RWByteAddressBuffer` and `RWStructuredBuffer` and adding matching `RasterizerOrdered` cases.

The test I added just checks that these types make it through the front-end, and doesn't do any actual confirmation that they work as intended. It is worth noting that the handling of ordering in GLSL/VK is different from in HLSL ("pixel shader interlock" instead of "rasterizer ordered views"), so coming up with a cross-compilation story would need to be a later step.

1 files changed, 8 insertions, 6 deletions

diff --git a/source/slang/type-layout.cpp b/source/slang/type-layout.cpp
index 1f1002425..d7a4e68bc 100644
--- a/source/slang/type-layout.cpp
+++ b/source/slang/type-layout.cpp
@@ -1659,10 +1659,11 @@ SimpleLayoutInfo GetLayoutImpl(
         return info;                                                    \
     } while(0)
 
-    CASE(HLSLStructuredBufferType,          StructuredBuffer);
-    CASE(HLSLRWStructuredBufferType,        MutableStructuredBuffer);
-    CASE(HLSLAppendStructuredBufferType,    MutableStructuredBuffer);
-    CASE(HLSLConsumeStructuredBufferType,   MutableStructuredBuffer);
+    CASE(HLSLStructuredBufferType,                  StructuredBuffer);
+    CASE(HLSLRWStructuredBufferType,                MutableStructuredBuffer);
+    CASE(HLSLRasterizerOrderedStructuredBufferType, MutableStructuredBuffer);
+    CASE(HLSLAppendStructuredBufferType,            MutableStructuredBuffer);
+    CASE(HLSLConsumeStructuredBufferType,           MutableStructuredBuffer);
 
 #undef CASE
 
@@ -1675,8 +1676,9 @@ SimpleLayoutInfo GetLayoutImpl(
             type, rules, outTypeLayout);                        \
     } while(0)
 
-    CASE(HLSLByteAddressBufferType,         RawBuffer);
-    CASE(HLSLRWByteAddressBufferType,       MutableRawBuffer);
+    CASE(HLSLByteAddressBufferType,                     RawBuffer);
+    CASE(HLSLRWByteAddressBufferType,                   MutableRawBuffer);
+    CASE(HLSLRasterizerOrderedByteAddressBufferType,    MutableRawBuffer);
 
     CASE(GLSLInputAttachmentType,           InputRenderTarget);