From 74963469a169b49d61196e3a3b33a903ea8bfede Mon Sep 17 00:00:00 2001 From: Tim Foley Date: Wed, 12 Jul 2017 11:07:45 -0700 Subject: Add basic reflection query for checking if entry point is "sample-rate" - This really just checks two basic things: 1. Was there any global variable declared with `in` and `sample`? 2. Did any code encountered during lowering referenece `gl_SampleIndex`? - This doesn't cover what HLSL could need, nor what we would need for cross-compilation. Consider it GLSL-specific for now. - In order to generate the information with even a reasonable chance of being accurate (not giving a ton of false positives) I tried to integrate the checks into the lowering process (so they only see code that is referenced, one hopes). - For this to work with my testing setup, I needed to make sure that lowering is always performed, prior to emitting reflection info - This change broke several reflection tests, because they had been using code that wouldn't actually pass the downstream compiler. I checked in fixes for those. --- source/slang/type-layout.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'source/slang/type-layout.h') diff --git a/source/slang/type-layout.h b/source/slang/type-layout.h index 1a63a4883..add9930ae 100644 --- a/source/slang/type-layout.h +++ b/source/slang/type-layout.h @@ -352,6 +352,12 @@ public: // Layout for any results of the entry point RefPtr resultLayout; + + enum Flag : unsigned + { + usesAnySampleRateInput = 0x1, + }; + unsigned flags = 0; }; // Layout information for the global scope of a program -- cgit v1.2.3