| Name |
| |
| ANGLE_global_fence_sync |
| |
| Name Strings |
| |
| EGL_ANGLE_global_fence_sync |
| |
| Contributors |
| |
| Shahbaz Youssefi, Google |
| |
| Contacts |
| |
| Shahbaz Youssefi, Google (syoussefi 'at' google.com) |
| |
| Status |
| |
| Draft |
| |
| Version |
| |
| Version 1, 2024-02-13 |
| |
| Number |
| |
| EGL Extensions XXX |
| |
| Extension Type |
| |
| EGL display extension |
| |
| Dependencies |
| |
| This extension is written against the wording of the EGL 1.5 |
| Specification. |
| |
| Overview |
| |
| This extension enables the creation of EGL fence sync objects that |
| synchronize with all past submissions of all contexts. Normally, if two |
| contexts make submissions, even on the same thread, the inserted fence sync |
| only guarantees synchronization with the submissions from the context in |
| which the fence was inserted. With the new fence sync type introduced by |
| this extension, the application can synchronize with both contexts in this |
| example using a single fence. |
| |
| New Types |
| |
| None. |
| |
| New Procedures and Functions |
| |
| None. |
| |
| New Tokens |
| |
| Accepted by the <type> parameter of eglCreateSync, and returned |
| in <value> when eglGetSyncAttrib is called with <attribute> |
| EGL_SYNC_TYPE: |
| |
| EGL_SYNC_GLOBAL_FENCE_ANGLE 0x34DE |
| |
| Additions to the EGL Specification |
| |
| Add the following after the second paragraph of Section 3.8.1.1 (Creating |
| Fence Sync Objects), |
| |
| "If <type> is EGL_SYNC_GLOBAL_FENCE_ANGLE, behavior is identical to |
| EGL_SYNC_FENCE except that synchronization is additionally done with all |
| previously submitted commands by all contexts." |
| |
| In the Errors of eglCreateSync, replace all instances of "If type is |
| EGL_SYNC_FENCE" with "If type is EGL_SYNC_FENCE or |
| EGL_SYNC_GLOBAL_FENCE_ANGLE". |
| |
| Issues |
| |
| None. |
| |
| Revision History |
| |
| Version 1, 2024-02-13 |
| - Initial draft |
| |
