X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fprogramcompiler.cpp;h=1c84a96dc925f18095368d63aa13aaaf19a7d88d;hp=1ba898ec4d373f63e019610206dcce5762248063;hb=91d3eac06389c0bb0363f643790581403b5fca1b;hpb=c895aa82dd405146f648e5ca3fcfaa326eab9b87

diff --git a/source/programcompiler.cpp b/source/programcompiler.cpp
index 1ba898ec..1c84a96d 100644
--- a/source/programcompiler.cpp
+++ b/source/programcompiler.cpp
@@ -1765,6 +1765,22 @@ bool ProgramCompiler::LegacyConverter::supports_interface_layouts() const
 		return check_version(Version(3, 30));
 }
 
+bool ProgramCompiler::LegacyConverter::supports_centroid_sampling() const
+{
+	if(target_api==OPENGL_ES2)
+		return check_version(Version(3, 0));
+	else
+		return check_version(Version(1, 20));
+}
+
+bool ProgramCompiler::LegacyConverter::supports_sample_sampling() const
+{
+	if(target_api==OPENGL_ES2)
+		return check_version(Version(3, 20));
+	else
+		return check_version(Version(4, 0));
+}
+
 void ProgramCompiler::LegacyConverter::visit(VariableDeclaration &var)
 {
 	if(var.layout && !supports_interface_layouts())
@@ -1792,6 +1808,17 @@ void ProgramCompiler::LegacyConverter::visit(VariableDeclaration &var)
 		}
 	}
 
+	if(var.sampling=="centroid")
+	{
+		if(!supports_centroid_sampling())
+			var.sampling = string();
+	}
+	else if(var.sampling=="sample")
+	{
+		if(!supports_sample_sampling())
+			var.sampling = string();
+	}
+
 	if((var.interface=="in" || var.interface=="out") && !supports_unified_interface_syntax())
 	{
 		if(stage->type==FRAGMENT && var.interface=="out")