void ScalarizeVecAndMatConstructorArgs::scalarizeArgs( TIntermAggregate *aggregate, bool scalarizeVector, bool scalarizeMatrix) { ASSERT(aggregate); int size = 0; switch (aggregate->getOp()) { case EOpConstructVec2: case EOpConstructBVec2: case EOpConstructIVec2: size = 2; break; case EOpConstructVec3: case EOpConstructBVec3: case EOpConstructIVec3: size = 3; break; case EOpConstructVec4: case EOpConstructBVec4: case EOpConstructIVec4: case EOpConstructMat2: size = 4; break; case EOpConstructMat2x3: case EOpConstructMat3x2: size = 6; break; case EOpConstructMat2x4: case EOpConstructMat4x2: size = 8; break; case EOpConstructMat3: size = 9; break; case EOpConstructMat3x4: case EOpConstructMat4x3: size = 12; break; case EOpConstructMat4: size = 16; break; default: break; } TIntermSequence *sequence = aggregate->getSequence(); TIntermSequence original(*sequence); sequence->clear(); for (size_t ii = 0; ii < original.size(); ++ii) { ASSERT(size > 0); TIntermTyped *node = original[ii]->getAsTyped(); ASSERT(node); TString varName = createTempVariable(node); if (node->isScalar()) { TIntermSymbol *symbolNode = new TIntermSymbol(-1, varName, node->getType()); sequence->push_back(symbolNode); size--; } else if (node->isVector()) { if (scalarizeVector) { int repeat = std::min(size, node->getNominalSize()); size -= repeat; for (int index = 0; index < repeat; ++index) { TIntermSymbol *symbolNode = new TIntermSymbol(-1, varName, node->getType()); TIntermBinary *newNode = ConstructVectorIndexBinaryNode( symbolNode, index); sequence->push_back(newNode); } } else { TIntermSymbol *symbolNode = new TIntermSymbol(-1, varName, node->getType()); sequence->push_back(symbolNode); size -= node->getNominalSize(); } } else { ASSERT(node->isMatrix()); if (scalarizeMatrix) { int colIndex = 0, rowIndex = 0; int repeat = std::min(size, node->getCols() * node->getRows()); size -= repeat; while (repeat > 0) { TIntermSymbol *symbolNode = new TIntermSymbol(-1, varName, node->getType()); TIntermBinary *newNode = ConstructMatrixIndexBinaryNode( symbolNode, colIndex, rowIndex); sequence->push_back(newNode); rowIndex++; if (rowIndex >= node->getRows()) { rowIndex = 0; colIndex++; } repeat--; } } else { TIntermSymbol *symbolNode = new TIntermSymbol(-1, varName, node->getType()); sequence->push_back(symbolNode); size -= node->getCols() * node->getRows(); } } } }