457     BackbufferInfo* backbuffer = fBackbuffers + fCurrentBackbufferIndex;  in getAvailableBackbuffer()  local
458     return backbuffer;  in getAvailableBackbuffer()
462     BackbufferInfo* backbuffer = this->getAvailableBackbuffer();  in getBackbufferSurface()  local
463     SkASSERT(backbuffer);  in getBackbufferSurface()
478                                         &backbuffer->fImageIndex);  in getBackbufferSurface()
491         backbuffer = this->getAvailableBackbuffer();  in getBackbufferSurface()
496                                    &backbuffer->fImageIndex);  in getBackbufferSurface()
504     SkSurface* surface = fSurfaces[backbuffer->fImageIndex].get();  in getBackbufferSurface()
516     BackbufferInfo* backbuffer = fBackbuffers + fCurrentBackbufferIndex;  in swapBuffers()  local
517     SkSurface* surface = fSurfaces[backbuffer->fImageIndex].get();  in swapBuffers()
520     beSemaphore.initVulkan(backbuffer->fRenderSemaphore);  in swapBuffers()
533         &backbuffer->fRenderSemaphore, // pWaitSemaphores  in swapBuffers()
536         &backbuffer->fImageIndex, // pImageIndices  in swapBuffers()