Lines Matching full:scratch
146 * A key used for scratch resources. There are three important rules about scratch keys:
147 * * Multiple resources can share the same scratch key. Therefore resources assigned the same
148 * scratch key should be interchangeable with respect to the code that uses them.
149 * * A resource can have at most one scratch key and it is set at resource creation by the
151 * * When a scratch resource is ref'ed it will not be returned from the
153 * a scratch key for multiple render-to-texture scenarios. An example is a separable blur:
171 /** Uniquely identifies the type of resource that is cached as scratch. */
177 /** Creates an invalid scratch key. It must be initialized using a Builder object before use. */
211 * * Unlike scratch keys, multiple requests for a unique key will return the same
217 * Unique keys preempt scratch keys. While a resource has a unique key it is inaccessible via its
218 * scratch key. It can become scratch again if the unique key is removed.
