Fix the CullPrimitiveEXT VUID's (#2475)

* Add new VUID's to address validation needs of CullPrimitiveEXT. It can
be used as part of a structure or as a array of boolean. Corresponding
VUID changes are also needed for PrimitiveID, Layer, ViewPortIndex,
PrimitiveShadingRateEXT

* Update chapters/interfaces.adoc

Update the validation rules. Your comments look good. I will add it for rest of the builtins

Co-authored-by: Hans-Kristian Arntzen <[email protected]>

* Update VUID's for builtins which are associated with PerPrimitiveEXT storage qualifier

Update the VUID's for builtins Layer, PrimitiveId, PrimitiveShadingRateKHR, ViewPortIndex similar to CullPrimitiveEXT as they can be part of a block or can be individual arrays for MeshEXT execution model

* Apply suggestions from code review

---------

Co-authored-by: Hans-Kristian Arntzen <[email protected]>
Co-authored-by: Daniel Koch <[email protected]>

Author: 3 people

chapters/interfaces.adoc

@@ -2201,11 +2201,12 @@ culled, if it is code:false it will not be culled.
     The variable decorated with code:CullPrimitiveEXT must: be declared
     using the code:Output {StorageClass}
   * [[VUID-{refpage}-CullPrimitiveEXT-07036]]
-    The variable decorated with code:CullPrimitiveEXT must: be declared as
-    an array of boolean values
-  * [[VUID-{refpage}-CullPrimitiveEXT-07037]]
-    The size of the array decorated with code:CullPrimitiveEXT must: match
-    the value specified by code:OutputPrimitivesEXT
+    code:CullPrimitiveEXT must: decorate a scalar boolean member of a structure decorated as code:Block, or decorate a variable of type code:OpTypeArray of boolean values. 
+  * If code:CullPrimitiveEXT is declared as an array of boolean values, the size of the array 
+    must: match the value specified by code:OutputPrimitivesEXT
+  * If code:CullPrimitiveEXT decorates a member of a structure, the variable declaration of the containing code:Block type must: have an array size that matches the value specified by code:OutputPrimitivesEXT
+  * There must be only one declaration of the code:CullPrimitiveEXT associated with a entry
+    point's interface.
   * [[VUID-{refpage}-CullPrimitiveEXT-07038]]
     The variable decorated with code:CullPrimitiveEXT within the
     code:MeshEXT {ExecutionModel} must: also be decorated with the
@@ -3232,11 +3233,19 @@ endif::VK_VERSION_1_2[]
     {ExecutionModel} must: be declared using the code:Input {StorageClass}
   * [[VUID-{refpage}-Layer-04276]]
     The variable decorated with code:Layer must: be declared as a scalar
-    32-bit integer value
+    32-bit integer value for all supported execution models except code:MeshEXT.
   * [[VUID-{refpage}-Layer-07039]]
     The variable decorated with code:Layer within the code:MeshEXT
     {ExecutionModel} must: also be decorated with the code:PerPrimitiveEXT
     decoration
+  * code:Layer within the code:MeshEXT {ExecutionModel} must: decorate a scalar 
+    32-bit integer member of a structure decorated as code:Block, or decorate a 
+    variable of type code:OpTypeArray of scalar 32-bit integer values. 
+  * If code:Layer is declared as an array of boolean values, the size of 
+    the array must: match the value specified by code:OutputPrimitivesEXT
+  * If code:Layer decorates a member of a structure, the variable declaration 
+    of the containing code:Block type must: have an array size that matches 
+    the value specified by code:OutputPrimitivesEXT
 ****
 --
 
@@ -3891,11 +3900,20 @@ SPIR-V has to use code:PrimitiveId.
     {StorageClass}
   * [[VUID-{refpage}-PrimitiveId-04337]]
     The variable decorated with code:PrimitiveId must: be declared as a
-    scalar 32-bit integer value
+    scalar 32-bit integer value for all supported execution models except code:MeshEXT
   * [[VUID-{refpage}-PrimitiveId-07040]]
     The variable decorated with code:PrimitiveId within the code:MeshEXT
     {ExecutionModel} must: also be decorated with the code:PerPrimitiveEXT
     decoration
+  * code:PrimitiveId within the code:MeshEXT {ExecutionModel} must: decorate a 
+    scalar 32-bit integer member of a structure decorated as code:Block, 
+    or decorate a variable of type code:OpTypeArray of 32-bit integer values. 
+  * If code:PrimitiveId is declared as an array of 32-bit integer values, 
+    within the code:MeshEXT {ExecutionModel}, size of the array must: match 
+    the value specified by code:OutputPrimitivesEXT
+  * If code:PrimitiveId decorates a member of a structure, the variable 
+    declaration of the containing code:Block type must: have an array size that
+    matches the value specified by code:OutputPrimitivesEXT
 ****
 --
 
@@ -4098,7 +4116,8 @@ value is undefined: for executions of the shader that take that path.
     declared using the code:Output {StorageClass}
   * [[VUID-{refpage}-PrimitiveShadingRateKHR-04486]]
     The variable decorated with code:PrimitiveShadingRateKHR must: be
-    declared as a scalar 32-bit integer value
+    declared as a scalar 32-bit integer value for all supported execution models
+    except code:MeshEXT
   * [[VUID-{refpage}-PrimitiveShadingRateKHR-04487]]
     The value written to code:PrimitiveShadingRateKHR must: include no more
     than one of code:Vertical2Pixels and code:Vertical4Pixels
@@ -4111,8 +4130,16 @@ value is undefined: for executions of the shader that take that path.
     enumerants in the SPIR-V specification
   * [[VUID-{refpage}-PrimitiveShadingRateKHR-07059]]
     The variable decorated with code:PrimitiveShadingRateKHR within the
-    code:MeshEXT {ExecutionModel} must: also be decorated with the
-    code:PerPrimitiveEXT decoration
+    code:MeshEXT {ExecutionModel} must: also be decorated with the code:PerPrimitiveEXT 
+    decoration
+  * code:PrimitiveShadingRateKHR within the code:MeshEXT {ExecutionModel} must: decorate 
+    a scalar 32-bit integer member of a structure decorated as code:Block, or decorate 
+    a variable of type code:OpTypeArray of 32-bit integer values. 
+  * If code:PrimitiveShadingRateKHR is declared as an array of boolean values, 
+    the size of the array must: match the value specified by code:OutputPrimitivesEXT
+  * If code:PrimitiveShadingRateKHR decorates a member of a structure, the variable 
+    declaration of the containing code:Block type must: have an array size that matches
+    the value specified by code:OutputPrimitivesEXT
 ****
 --
 endif::VK_KHR_fragment_shading_rate[]
@@ -5102,11 +5129,20 @@ endif::VK_VERSION_1_2[]
     {ExecutionModel} must: be declared using the code:Input {StorageClass}
   * [[VUID-{refpage}-ViewportIndex-04408]]
     The variable decorated with code:ViewportIndex must: be declared as a
-    scalar 32-bit integer value
+    scalar 32-bit integer value for all supported execution models except 
+    code:MeshEXT
   * [[VUID-{refpage}-ViewportIndex-07060]]
     The variable decorated with code:ViewportIndex within the code:MeshEXT
     {ExecutionModel} must: also be decorated with the code:PerPrimitiveEXT
     decoration
+  * code:ViewportIndex within the code:MeshEXT {ExecutionModel} must: decorate a 
+    scalar boolean member of a structure decorated as code:Block, or decorate
+    a variable of type code:OpTypeArray of boolean values. 
+  * If code:ViewportIndex is declared as an array of boolean values, the size 
+    of the array must: match the value specified by code:OutputPrimitivesEXT
+  * If code:ViewportIndex decorates a member of a structure, the variable 
+    declaration of the containing code:Block type must: have an array size that 
+    matches the value specified by code:OutputPrimitivesEXT
 ****
 --