pub unsafe extern "C" fn SkSurface_asyncRescaleAndReadPixelsYUV420(
this: *mut SkSurface,
yuvColorSpace: SkYUVColorSpace,
dstColorSpace: sk_sp<SkColorSpace>,
srcRect: *const SkIRect,
dstSize: *const SkISize,
rescaleGamma: SkSurface_RescaleGamma,
rescaleMode: SkSurface_RescaleMode,
callback: SkSurface_ReadPixelsCallback,
context: SkSurface_ReadPixelsContext
)