Package icyllis.arc3d.granite

Class UniformDataCache

java.lang.Object
icyllis.arc3d.granite.UniformDataCache
All Implemented Interfaces:
AutoCloseable
public class UniformDataCache extends Object implements AutoCloseable
Add a block of data to the cache and return a stable pointer to the contents (assuming that a resettable gatherer had accumulated the input data pointer).

If an identical block of data is already in the cache, that existing pointer is returned, making pointer comparison suitable when comparing data blocks retrieved from the cache.

See Also:

  • Constructor Details

    • UniformDataCache

      public UniformDataCache()

  • Method Details

    • insert

      @Nullable public IntBuffer insert(@Nullable IntBuffer block)
      Find an existing data block with the contents of the given block. The given block is just a memory view, and it can be reused by changing its Buffer.position() and Buffer.limit(). The IntBuffer.hashCode() and IntBuffer.equals(Object) of the given block will be used. If absent, a copy of the given data will be made and its memory is managed by this object, return value is a stable pointer to that memory, you can simply check the reference equality via == as it's deduplicated.
      Parameters:
      block - an immutable view of uniform data
      Returns:
      a stable pointer to existing or copied uniform data

    • size

      public int size()
      The number of unique data blocks in the cache.

    • close

      public void close()
      Specified by:
      close in interface AutoCloseable