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Swap

Swap is a helper class to support buffer and texture management when doing repeated transformations or computations on a block of data (memory). Swap enables a sequence of repeated / successive data transformations to be run by reusing just two resources (two buffers or two textures), effectively supporting a simple double buffering techniques.

Swap is primarily intended to manage pairs of GPU memory resources, such as

  • a pair of GPU buffers (Swap<Buffer>)
  • a pair of GPU textures (Swap<Texture>).

The two resources are expected to be structurally identical (same size, length, format, etc).

Usage​

const swapBuffers = new Swap({
  current: 
})

## Members

### `current`

```ts
swap.current: T

Get the current resource - usually the source for renders or computations.

next​

swap.next: T

Get the next resource - usually the target/destination for transforms / computations.

Methods​

constructor​

new Swap<T>(props: {current: T, next: T})

destroy()​

Destroys the two managed resources.

swap()​

Make the next resource into the "current" resource, and the current resource becomes the "next" resource

Typically this reuses the previously current resource as the next resource.