RenderPerformanceOverlay constructor

RenderPerformanceOverlay({int optionsMask: 0, int rasterizerThreshold: 0, bool checkerboardRasterCacheImages: false, bool checkerboardOffscreenLayers: false })

Creates a performance overlay render object.

The optionsMask, rasterizerThreshold, checkerboardRasterCacheImages, and checkerboardOffscreenLayers arguments must not be null.

Implementation 

RenderPerformanceOverlay({
  int optionsMask = 0,
  int rasterizerThreshold = 0,
  bool checkerboardRasterCacheImages = false,
  bool checkerboardOffscreenLayers = false,
}) : assert(optionsMask != null),
     assert(rasterizerThreshold != null),
     assert(checkerboardRasterCacheImages != null),
     assert(checkerboardOffscreenLayers != null),
     _optionsMask = optionsMask,
     _rasterizerThreshold = rasterizerThreshold,
     _checkerboardRasterCacheImages = checkerboardRasterCacheImages,
     _checkerboardOffscreenLayers = checkerboardOffscreenLayers;