| Name |
| |
| SGI_swap_control |
| |
| Name Strings |
| |
| GLX_SGI_swap_control |
| |
| Version |
| |
| $Date: 1995/09/15 01:28:06 $ $Revision: 1.9 $ |
| |
| Number |
| |
| 40 |
| |
| Dependencies |
| |
| None |
| |
| Overview |
| |
| This extension allows an application to specify a minimum periodicity |
| of color buffer swaps, measured in video frame periods. |
| |
| New Procedures and Functions |
| |
| int glXSwapIntervalSGI(int interval) |
| |
| New Tokens |
| |
| None |
| |
| Additions to Chapter 2 of the 1.0 Specification (OpenGL Operation) |
| |
| None |
| |
| Additions to Chapter 3 of the 1.0 Specification (Rasterization) |
| |
| None |
| |
| Additions to Chapter 4 of the 1.0 Specification (Per-Fragment Operations and |
| the Framebuffer) |
| |
| None |
| |
| Additions to Chapter 5 of the 1.0 Specification (Special Functions) |
| |
| None |
| |
| Additions to Chapter 6 of the 1.0 Specification (State and State Requests) |
| |
| None |
| |
| Additions to the GLX Specification |
| |
| [Add the following to Section 3.2.6 of the GLX Specification (Double |
| Buffering)] |
| |
| glXSwapIntervalSGI specifies the minimum number of video frame periods |
| per buffer swap. (e.g. a value of two means that the color buffers |
| will be swapped at most every other video frame.) A return value |
| of zero indicates success; otherwise an error occurred. The interval |
| takes effect when glXSwapBuffers is first called subsequent to the |
| glXSwapIntervalSGI call. |
| |
| A video frame period is the time required by the monitor to display a |
| full frame of video data. In the case of an interlaced monitor, |
| this is typically the time required to display both the even and odd |
| fields of a frame of video data. |
| |
| Errors |
| |
| glXSwapIntervalSGI returns GLX_BAD_VALUE if parameter <interval> is |
| less than or equal to zero. |
| |
| glXSwapIntervalSGI returns GLX_BAD_CONTEXT if there is no current |
| GLXContext. |
| |
| New State |
| |
| None |
| |
| Get Value Get Command Type Initial Value |
| --------- ----------- ---- ------------- |
| [swap interval] [none] Z+ 1 |
| |
| New Implementation Dependent State |
| |
| None |
| |
| |
