140     mLineLoopIB        = nullptr;  in Renderer9()
1500         if (!mLineLoopIB)  in drawLineLoop()
1502             mLineLoopIB = new StreamingIndexBufferInterface(this);  in drawLineLoop()
1503             ANGLE_TRY(mLineLoopIB->reserveBufferSpace(context, INITIAL_INDEX_BUFFER_SIZE,  in drawLineLoop()
1519         ANGLE_TRY(mLineLoopIB->reserveBufferSpace(context, spaceNeeded,  in drawLineLoop()
1524         ANGLE_TRY(mLineLoopIB->mapBuffer(context, spaceNeeded, &mappedMemory, &offset));  in drawLineLoop()
1563         ANGLE_TRY(mLineLoopIB->unmapBuffer(context));  in drawLineLoop()
1567         if (!mLineLoopIB)  in drawLineLoop()
1569             mLineLoopIB = new StreamingIndexBufferInterface(this);  in drawLineLoop()
1570             ANGLE_TRY(mLineLoopIB->reserveBufferSpace(context, INITIAL_INDEX_BUFFER_SIZE,  in drawLineLoop()
1586         ANGLE_TRY(mLineLoopIB->reserveBufferSpace(context, spaceNeeded,  in drawLineLoop()
1591         ANGLE_TRY(mLineLoopIB->mapBuffer(context, spaceNeeded, &mappedMemory, &offset));  in drawLineLoop()
1630         ANGLE_TRY(mLineLoopIB->unmapBuffer(context));  in drawLineLoop()
1633     if (mAppliedIBSerial != mLineLoopIB->getSerial())  in drawLineLoop()
1635         IndexBuffer9 *indexBuffer = GetAs<IndexBuffer9>(mLineLoopIB->getIndexBuffer());  in drawLineLoop()
1638         mAppliedIBSerial = mLineLoopIB->getSerial();  in drawLineLoop()
2192     SafeDelete(mLineLoopIB);  in releaseDeviceResources()