From 88023aea669f258d66e53eab10215337a7f72853 Mon Sep 17 00:00:00 2001 From: Tim Foley Date: Thu, 19 Oct 2017 11:49:16 -0700 Subject: Reflection: allow querying of semantics on varying input/output (#224) This is functionality required to support a Falcor bug fix. Most of the code to compute the right semantic name/index for a parameter was already present. This change adds: - Storage for semantic name/index on every `VarLayout` - Note: this is wasteful and should be optimized later - A public API to query the semantic name/index - The contract is that this API returns `NULL` if the parameter had no semantic - A bit of work in `parameter-binding.cpp` to attach semantics to varying input/output when traversing varying parameters. - Note: this is intentionally set up so that it associates semantics even with non-leaf parameters, so that an API user can query the semantic of a `struct` parameter and know that its members will be assigned sequential semantic indices from its starting value. - Support for dumping this information in reflection tests One notable thing that I did *not* change here is that the reflection test fixture doesn't report information on the output of an entry point, even though it really should. That should be fixed in a separate change, though, because it would affect many of the expected outputs. --- tests/reflection/thread-group-size.hlsl.expected | 1 + 1 file changed, 1 insertion(+) (limited to 'tests/reflection/thread-group-size.hlsl.expected') diff --git a/tests/reflection/thread-group-size.hlsl.expected b/tests/reflection/thread-group-size.hlsl.expected index d139c5b64..a41c66248 100644 --- a/tests/reflection/thread-group-size.hlsl.expected +++ b/tests/reflection/thread-group-size.hlsl.expected @@ -24,6 +24,7 @@ standard output = { "bindings": [ ], + "semanticName": "SV_DISPATCHTHREADID", "type": { "kind": "vector", "elementCount": 3, -- cgit v1.2.3