From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 7 Nov 2021 13:59:13 +0000 (+0200)
Subject: Padding is required at the end of certain SPIR-V struct members
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=c1bf0909af97772da5b26d82272f337a14c1fae9;p=libs%2Fgl.git

Padding is required at the end of certain SPIR-V struct members

If the member is is itself a struct or an array, the next member must not
begin before the next alignment boundary.
---

diff --git a/source/glsl/reflect.cpp b/source/glsl/reflect.cpp
index 8ee8a88d..6027acde 100644
--- a/source/glsl/reflect.cpp
+++ b/source/glsl/reflect.cpp
@@ -304,6 +304,8 @@ void MemoryRequirementsCalculator::visit(StructDeclaration &strct)
 	}
 	r_size = total;
 	r_alignment = max_align;
+	r_size += r_alignment-1;
+	r_size -= r_size%r_alignment;
 }
 
 void MemoryRequirementsCalculator::visit(VariableDeclaration &var)
@@ -323,7 +325,7 @@ void MemoryRequirementsCalculator::visit(VariableDeclaration &var)
 			{
 				unsigned aligned_size = r_size+r_alignment-1;
 				aligned_size -= aligned_size%r_alignment;
-				r_size += aligned_size*(literal->value.value<int>()-1);
+				r_size = aligned_size*literal->value.value<int>();
 			}
 }