Type Method

prefetchStorage(with:imageDescriptorList:)

A method that helps the framework decide which allocations to make ahead of time.

Declaration

class func prefetchStorage(with commandBuffer: MTLCommandBuffer, imageDescriptorList descriptorList: [MPSImageDescriptor])

Parameters

commandBuffer

The command buffer on which the temporary images will be exclusively used.

descriptorList

An array of image descriptors that describe the temporary images that will be created.

Discussion

The texture cache that underlies the temporary images can automatically allocate new storage as needed, whenever you create new temporary images. However, sometimes a more global view of what you plan to make is useful for maximizing memory reuse to get the most efficient operation. Calling this class method provides a hint to the texture cache about what the list of temporary images will be.

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