From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 3 Sep 2022 13:15:52 +0000 (+0300)
Subject: Handle the flat and centroid qualifiers in SPIR-V output
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=7272d97c23eedb3850661deec964c4a9c96337fe

Handle the flat and centroid qualifiers in SPIR-V output
---

diff --git a/source/glsl/spirv.cpp b/source/glsl/spirv.cpp
index 8cb485c9..85312bc4 100644
--- a/source/glsl/spirv.cpp
+++ b/source/glsl/spirv.cpp
@@ -1771,6 +1771,10 @@ void SpirVGenerator::visit(VariableDeclaration &var)
 			BuiltinSemantic semantic = get_builtin_semantic(var.name);
 			writer.write_op_decorate(var_id, DECO_BUILTIN, semantic);
 		}
+		if(var.sampling=="flat")
+			writer.write_op_decorate(var_id, DECO_FLAT);
+		if(var.sampling=="centroid")
+			writer.write_op_decorate(var_id, DECO_CENTROID);
 
 		if(init_id && current_function)
 		{
diff --git a/source/glsl/spirvconstants.h b/source/glsl/spirvconstants.h
index d60b809c..bd82becd 100644
--- a/source/glsl/spirvconstants.h
+++ b/source/glsl/spirvconstants.h
@@ -209,6 +209,8 @@ enum SpirVDecoration
 	DECO_ARRAY_STRIDE = 6,
 	DECO_MATRIX_STRIDE = 7,
 	DECO_BUILTIN = 11,
+	DECO_FLAT = 14,
+	DECO_CENTROID = 16,
 	DECO_LOCATION = 30,
 	DECO_BINDING = 33,
 	DECO_DESCRIPTOR_SET = 34,