TString UniformHLSL::interfaceBlockMembersString(const TInterfaceBlock &interfaceBlock, TLayoutBlockStorage blockStorage) { TString hlsl; Std140PaddingHelper padHelper = mStructureHLSL->getPaddingHelper(); for (unsigned int typeIndex = 0; typeIndex < interfaceBlock.fields().size(); typeIndex++) { const TField &field = *interfaceBlock.fields()[typeIndex]; const TType &fieldType = *field.type(); if (blockStorage == EbsStd140) { // 2 and 3 component vector types in some cases need pre-padding hlsl += padHelper.prePadding(fieldType); } hlsl += " " + InterfaceBlockFieldTypeString(field, blockStorage) + " " + Decorate(field.name()) + ArrayString(fieldType) + ";\n"; // must pad out after matrices and arrays, where HLSL usually allows itself room to pack stuff if (blockStorage == EbsStd140) { const bool useHLSLRowMajorPacking = (fieldType.getLayoutQualifier().matrixPacking == EmpColumnMajor); hlsl += padHelper.postPaddingString(fieldType, useHLSLRowMajorPacking); } } return hlsl; }
void StructureHLSL::storeStd140ElementIndex(const TStructure &structure, bool useHLSLRowMajorPacking) { Std140PaddingHelper padHelper = getPaddingHelper(); const TFieldList &fields = structure.fields(); for (unsigned int i = 0; i < fields.size(); i++) { padHelper.prePadding(*fields[i]->type()); } // Add remaining element index to the global map, for use with nested structs in standard layouts const TString &structName = QualifiedStructNameString(structure, useHLSLRowMajorPacking, true); mStd140StructElementIndexes[structName] = padHelper.elementIndex(); }