Unix/Linux Go Back    


CentOS 7.0 - man page for glfencesync (centos section 3G)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


GLFENCESYNC(3G) 			  OpenGL Manual 			  GLFENCESYNC(3G)

NAME
       glFenceSync - create a new sync object and insert it into the GL command stream

C SPECIFICATION
       GLsync glFenceSync(GLenum condition, GLbitfield flags);

PARAMETERS
       condition
	   Specifies the condition that must be met to set the sync object's state to signaled.
	   condition must be GL_SYNC_GPU_COMMANDS_COMPLETE.

       flags
	   Specifies a bitwise combination of flags controlling the behavior of the sync object.
	   No flags are presently defined for this operation and flags must be zero.[1]

DESCRIPTION
       glFenceSync creates a new fence sync object, inserts a fence command into the GL command
       stream and associates it with that sync object, and returns a non-zero name corresponding
       to the sync object.

       When the specified condition of the sync object is satisfied by the fence command, the
       sync object is signaled by the GL, causing any glWaitSync(), glClientWaitSync() commands
       blocking in sync to unblock. No other state is affected by glFenceSync or by the execution
       of the associated fence command.

       condition must be GL_SYNC_GPU_COMMANDS_COMPLETE. This condition is satisfied by completion
       of the fence command corresponding to the sync object and all preceding commands in the
       same command stream. The sync object will not be signaled until all effects from these
       commands on GL client and server state and the framebuffer are fully realized. Note that
       completion of the fence command occurs once the state of the corresponding sync object has
       been changed, but commands waiting on that sync object may not be unblocked until after
       the fence command completes.

NOTES
       glFenceSync is only supported if the GL version is 3.2 or greater, or if
		   the ARB_sync extension is supported.
	   .SH "ERRORS"

       GL_INVALID_ENUM is generated if condition is not GL_SYNC_GPU_COMMANDS_COMPLETE.

       GL_INVALID_VALUE is generated if flags is not zero.

       Additionally, if glFenceSync fails, it will return zero.

SEE ALSO
       glDeleteSync(), glGetSync(), glWaitSync(), glClientWaitSync()

COPYRIGHT
       Copyright (C) 2010 Khronos Group. This material may be distributed subject to the terms
       and conditions set forth in the Open Publication License, v 1.0, 8 June 1999.
       http://opencontent.org/openpub/.

AUTHORS
       opengl.org

NOTES
	1. flags is a placeholder for anticipated future extensions of fence sync object
	   capabilities.

opengl.org				    06/10/2014				  GLFENCESYNC(3G)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 07:55 AM.