Class EXTX11SyncObject

java.lang.Object
org.lwjgl.opengl.EXTX11SyncObject

public class EXTX11SyncObject extends Object
Native bindings to the EXT_x11_sync_object extension.

Synchronization objects added the ability to better coordinate operations between multiple GL command streams. However, it is desirable to have the same level of coordination between GL command streams and external rendering APIs. This extension introduces two new concepts to build upon the synchronization infrastructure provided by ARB_sync:

  1. A means to import an X Synchronization Fence object into the GL and use it as a sync object.
  2. The concept of a reusable sync object.

The latter is necessary because the import operation is expensive and performing it every time a synchronization point was reached would make the synchronization prohibitively slow.

This extension stops short of allowing the GL to change the state of imported/reusable sync objects, but does not add any language that would prohibit such functionality from being added in a subsequent extension.

Requires OpenGL 3.2 or ARB_sync.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    Accepted by the external_sync_type parameter of ImportSyncEXT.
  • Method Summary

    Modifier and Type
    Method
    Description
    static long
    glImportSyncEXT(int external_sync_type, long external_sync, int flags)
    Creates a GL sync object of the type external_sync_type based on the object referred to by external_sync.

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Field Details

    • GL_SYNC_X11_FENCE_EXT

      public static final int GL_SYNC_X11_FENCE_EXT
      Accepted by the external_sync_type parameter of ImportSyncEXT.
      See Also:
  • Method Details

    • glImportSyncEXT

      public static long glImportSyncEXT(int external_sync_type, long external_sync, int flags)
      Creates a GL sync object of the type external_sync_type based on the object referred to by external_sync.
      Parameters:
      external_sync_type - the external sync object type. Must be:
      SYNC_X11_FENCE_EXT
      external_sync - the external sync object. Must be the XID of a valid X11 Synchronization Fence object
      flags - Must be 0.