Example #1
0
        public static void GenerateInputFields(FrontEndTranslator translator, ShaderType shaderType, ShaderInterfaceSet interfaceSet, ShaderBlock declarationBlock, ShaderBlock decorationsBlock)
        {
            if (interfaceSet.Fields.Count == 0)
            {
                return;
            }

            var inputsName = shaderType.mMeta.mName + "_Inputs";

            EntryPointGenerationShared.GenerateInterfaceGlobalFields(translator, interfaceSet.Fields, inputsName, "In", StorageClass.Input);
            foreach (var inputField in interfaceSet)
            {
                var fieldOp = interfaceSet.GetFieldInstance(translator, inputField, null);
                declarationBlock.mLocalVariables.Add(fieldOp);
            }
            Decorations.LocationCallback locationCallback = (ShaderField field, out int location, out int component) =>
            {
                location = component = -1;
                var attribute = field.mMeta.mAttributes.FindFirstAttribute(typeof(Shader.StageInput));
                if (attribute == null)
                {
                    return(false);
                }
                var parsedAttribute = AttributeExtensions.ParseStageInput(attribute);
                location  = parsedAttribute.Location;
                component = parsedAttribute.Component;
                return(true);
            };
            Decorations.AddDecorationLocations(translator, shaderType, interfaceSet, locationCallback, decorationsBlock);
        }