Add SLANG_ACCELERATION_STRUCTURE resource shape for RaytracingAccelerationStructureType (shader-slang#901)

* Add SLANG_ACCELERATION_STRUCTURE resource shape for RaytracingAccelerationStructureType

* Change order of resource shape cases

I've changed the order of the `UNKNOWN` and `ACCELERATION_STRUCTURE` cases so that the binary value of the `UNKNOWN` case isn't changed by the new feature.

Author: philcn

slang.h

@@ -1535,6 +1535,7 @@ extern "C"
         SLANG_STRUCTURED_BUFFER             = 0x06,
         SLANG_BYTE_ADDRESS_BUFFER           = 0x07,
         SLANG_RESOURCE_UNKNOWN              = 0x08,
+        SLANG_ACCELERATION_STRUCTURE        = 0x09,
 
         SLANG_RESOURCE_EXT_SHAPE_MASK       = 0xF0,
         SLANG_TEXTURE_ARRAY_FLAG            = 0x40,

source/slang/reflection.cpp

@@ -511,15 +511,16 @@ SLANG_API SlangResourceShape spReflectionType_GetResourceShape(SlangReflectionTy
         return SHAPE;               \
     } while(0)
 
-    CASE(HLSLStructuredBufferType,                      SLANG_STRUCTURED_BUFFER,    SLANG_RESOURCE_ACCESS_READ);
-    CASE(HLSLRWStructuredBufferType,                    SLANG_STRUCTURED_BUFFER,    SLANG_RESOURCE_ACCESS_READ_WRITE);
-    CASE(HLSLRasterizerOrderedStructuredBufferType,     SLANG_STRUCTURED_BUFFER,    SLANG_RESOURCE_ACCESS_RASTER_ORDERED);
-    CASE(HLSLAppendStructuredBufferType,                SLANG_STRUCTURED_BUFFER,    SLANG_RESOURCE_ACCESS_APPEND);
-    CASE(HLSLConsumeStructuredBufferType,               SLANG_STRUCTURED_BUFFER,    SLANG_RESOURCE_ACCESS_CONSUME);
-    CASE(HLSLByteAddressBufferType,                     SLANG_BYTE_ADDRESS_BUFFER,  SLANG_RESOURCE_ACCESS_READ);
-    CASE(HLSLRWByteAddressBufferType,                   SLANG_BYTE_ADDRESS_BUFFER,  SLANG_RESOURCE_ACCESS_READ_WRITE);
-    CASE(HLSLRasterizerOrderedByteAddressBufferType,    SLANG_BYTE_ADDRESS_BUFFER,  SLANG_RESOURCE_ACCESS_RASTER_ORDERED);
-    CASE(UntypedBufferResourceType,                     SLANG_BYTE_ADDRESS_BUFFER,  SLANG_RESOURCE_ACCESS_READ);
+    CASE(HLSLStructuredBufferType,                      SLANG_STRUCTURED_BUFFER,        SLANG_RESOURCE_ACCESS_READ);
+    CASE(HLSLRWStructuredBufferType,                    SLANG_STRUCTURED_BUFFER,        SLANG_RESOURCE_ACCESS_READ_WRITE);
+    CASE(HLSLRasterizerOrderedStructuredBufferType,     SLANG_STRUCTURED_BUFFER,        SLANG_RESOURCE_ACCESS_RASTER_ORDERED);
+    CASE(HLSLAppendStructuredBufferType,                SLANG_STRUCTURED_BUFFER,        SLANG_RESOURCE_ACCESS_APPEND);
+    CASE(HLSLConsumeStructuredBufferType,               SLANG_STRUCTURED_BUFFER,        SLANG_RESOURCE_ACCESS_CONSUME);
+    CASE(HLSLByteAddressBufferType,                     SLANG_BYTE_ADDRESS_BUFFER,      SLANG_RESOURCE_ACCESS_READ);
+    CASE(HLSLRWByteAddressBufferType,                   SLANG_BYTE_ADDRESS_BUFFER,      SLANG_RESOURCE_ACCESS_READ_WRITE);
+    CASE(HLSLRasterizerOrderedByteAddressBufferType,    SLANG_BYTE_ADDRESS_BUFFER,      SLANG_RESOURCE_ACCESS_RASTER_ORDERED);
+    CASE(RaytracingAccelerationStructureType,           SLANG_ACCELERATION_STRUCTURE,   SLANG_RESOURCE_ACCESS_READ);
+    CASE(UntypedBufferResourceType,                     SLANG_BYTE_ADDRESS_BUFFER,      SLANG_RESOURCE_ACCESS_READ);
 #undef CASE
 
     return SLANG_RESOURCE_NONE;