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並前往https://chromium.googlesource.com/chromium/chromium/+/6a4ac99b33365408ecbf44efedaed1f9133529a8/chrome/browser/renderer_host/backing_store_mac.mm

chrome/browser/renderer_host/backing_store_mac.mm

our backing store in a CGLayer that can get cached in GPU memory. This. // allows acclerated drawing into the layer and lets scrolling and such happen.

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查詢 「CGLayer」的人也找了：

  1. CoreGraphics
    2.
  2. Swift CGContext
    3.
  3. Core Graphics Swift
    4.
  4. calayer
    5.
  5. CGImage
    6.