X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=modules%2Fgles31%2Ffunctional%2Fes31fProgramInterfaceDefinitionUtil.cpp;h=c31d7540678773efdb51a7f237a3cf201de14918;hb=32f90d863cb1c9179ff1f0feaba2170466de63fa;hp=d37ecaed58776c63d32cde7843f4c4f04ce1d493;hpb=10374df5c40fea78600d60576ac1a33dff430cf7;p=platform%2Fupstream%2FVK-GL-CTS.git

diff --git a/modules/gles31/functional/es31fProgramInterfaceDefinitionUtil.cpp b/modules/gles31/functional/es31fProgramInterfaceDefinitionUtil.cpp
index d37ecae..c31d754 100644
--- a/modules/gles31/functional/es31fProgramInterfaceDefinitionUtil.cpp
+++ b/modules/gles31/functional/es31fProgramInterfaceDefinitionUtil.cpp
@@ -1475,6 +1475,21 @@ std::vector<std::string> getProgramInterfaceResourceList (const ProgramInterface
 	return resources;
 }
 
+/**
+ * Name of the dummy uniform added by generateProgramInterfaceProgramSources
+ *
+ * A uniform named "dummyZero" is added by
+ * generateProgramInterfaceProgramSources.  It is used in expressions to
+ * prevent various program resources from being eliminated by the GLSL
+ * compiler's optimizer.
+ *
+ * \sa deqp::gles31::Functional::ProgramInterfaceDefinition::generateProgramInterfaceProgramSources
+ */
+const char* getDummyZeroUniformName()
+{
+	return "dummyZero";
+}
+
 glu::ProgramSources generateProgramInterfaceProgramSources (const ProgramInterfaceDefinition::Program* program)
 {
 	glu::ProgramSources sources;
@@ -1513,9 +1528,10 @@ glu::ProgramSources generateProgramInterfaceProgramSources (const ProgramInterfa
 
 		// Use inputs and outputs so that they won't be removed by the optimizer
 
-		usageBuf <<	"highp vec4 readInputs()\n"
+		usageBuf <<	"highp uniform vec4 " << getDummyZeroUniformName() << "; // Default value is vec4(0.0).\n"
+					"highp vec4 readInputs()\n"
 					"{\n"
-					"	highp vec4 retValue = vec4(0.0);\n";
+					"	highp vec4 retValue = " << getDummyZeroUniformName() << ";\n";
 
 		// User-defined inputs