GLXSWAPBUFFERS(3gl)GLXSWAPBUFFERS(3gl)NAMEglXSwapBuffers - make back buffer visible
C SPECIFICATION
void glXSwapBuffers( Display *dpy,
GLXDrawable drawable )
PARAMETERS
dpy Specifies the connection to the X server.
drawable Specifies the drawable whose buffers are to be swapped.
DESCRIPTIONglXSwapBuffers promotes the contents of the back buffer of drawable to
become the contents of the front buffer of drawable. The contents of
the back buffer then become undefined. The update typically takes
place during the vertical retrace of the monitor, rather than immedi‐
ately after glXSwapBuffers is called. All GLX rendering contexts share
the same notion of which are front buffers and which are back buffers.
glXSwapBuffers performs an implicit glFlush before it returns. Subse‐
quent GL commands can be issued immediately after calling glXSwap‐
Buffers, but are not executed until the buffer exchange is completed.
If drawable was not created with respect to a double-buffered visual,
glXSwapBuffers has no effect, and no error is generated.
NOTES
Synchronization of multiple GLX contexts rendering to the same double-
buffered window is the responsibility of the clients. Use the X Syn‐
chronization Extension to facilitate such cooperation.
The X double buffer extension (DBE) has information on which buffer is
the currently displayed buffer. This information is shared with GLX.
ERRORS
GLXBadDrawable is generated if drawable is not a valid GLX drawable.
GLXBadCurrentWindow is generated if dpy and drawable are respectively
the display and drawable associated with the current context of the
calling thread, and drawable identifies a window that is no longer
valid.
SEE ALSO
glFlush
15 Mar 97 GLXSWAPBUFFERS(3gl)
