514     BackbufferInfo* backbuffer = fBackbuffers + fCurrentBackbufferIndex;  in getAvailableBackbuffer()  local
515     return backbuffer;  in getAvailableBackbuffer()
519     BackbufferInfo* backbuffer = this->getAvailableBackbuffer();  in getBackbufferSurface()  local
520     SkASSERT(backbuffer);  in getBackbufferSurface()
538                                         &backbuffer->fImageIndex);  in getBackbufferSurface()
550         backbuffer = this->getAvailableBackbuffer();  in getBackbufferSurface()
558                                    &backbuffer->fImageIndex);  in getBackbufferSurface()
566     SkSurface* surface = fSurfaces[backbuffer->fImageIndex].get();  in getBackbufferSurface()
577     BackbufferInfo* backbuffer = fBackbuffers + fCurrentBackbufferIndex;  in onSwapBuffers()  local
587         info.fTargetSurface = fSurfaces[backbuffer->fImageIndex].get();  in onSwapBuffers()
597                 skgpu::graphite::BackendSemaphores::MakeVulkan(backbuffer->fRenderSemaphore);  in onSwapBuffers()
628             &backbuffer->fRenderSemaphore,       // pWaitSemaphores  in onSwapBuffers()
631             &backbuffer->fImageIndex,            // pImageIndices  in onSwapBuffers()