| Name |
| |
| GLX_OML_swap_method |
| |
| Name Strings |
| |
| GLX_OML_swap_method |
| |
| Contact |
| |
| Jon Leech, SGI (ljp 'at' sgi.com) |
| |
| Status |
| |
| Complete. Approved by the Khronos SIG on July 19, 2001. |
| |
| Version |
| |
| Last Modified Date: 07/23/2001 |
| Revision: $Header: //depot/main/doc/registry/extensions/OML/glx_swap_method.spec#4 $ |
| |
| Number |
| |
| 237 |
| |
| Dependencies |
| |
| GLX 1.3 is required. |
| |
| Overview |
| |
| This extension adds a new attribute, GLX_SWAP_METHOD, for a |
| GLXFBConfig. The GLX_SWAP_METHOD indicates how front and back |
| buffers are swapped when the GLXFBConfig is double-buffered. |
| |
| IP Status |
| |
| No known issues. |
| |
| Issues and Notes |
| |
| * Some hardware supports different swap methods in full screen mode |
| vs. windowed mode. How should this be handled? This is not handled |
| by this extension. GLX does not support the notion of fullscreen vs. |
| windowed mode. A separate extension is required to properly support |
| fullscreen mode. |
| |
| New Procedures and Functions |
| |
| None. |
| |
| New Tokens |
| |
| Accepted in the <attrib_list> parameter array of glXChooseFBConfig |
| and as the <attribute> parameter for glXGetFBConfigAttrib: |
| |
| GLX_SWAP_METHOD_OML 0x8060 |
| |
| Accepted as a value in the <attrib_list> parameter of glXChooseFBConfig |
| and returned in the <value> parameter of glXGetFBConfig: |
| |
| GLX_SWAP_EXCHANGE_OML 0x8061 |
| GLX_SWAP_COPY_OML 0x8062 |
| GLX_SWAP_UNDEFINED_OML 0x8063 |
| |
| Additions to the OpenGL 1.2.1 Specification |
| |
| None |
| |
| Additions to the GLX 1.3 Specification |
| |
| - (3.3.3, p. ?? "Configuration Management") |
| |
| Add to table 3.1: |
| |
| Attribute Type Notes |
| --------- ---- ----- |
| GLX_SWAP_METHOD_OML enum method used to swap front and back color buffers |
| |
| |
| The GLX_SWAP_METHOD_OML attribute may be set to one of the following |
| values: GLX_SWAP_EXCHANGE_OML, GLX_SWAP_COPY_OML or |
| GLX_SWAP_UNDEFINED_OML. If this attribute is set to |
| GLX_SWAP_EXCHANGE_OML then swapping exchanges the front and back |
| buffer contents; if the attribute is set to GLX_SWAP_COPY_OML then |
| swapping copies the back buffer contents to the front buffer, |
| preserving the back buffer contents; if it is set to |
| GLX_SWAP_UNDEFINED_OML then the back buffer contents are copied to |
| the front buffer but the back buffer contents are undefined after |
| the operation. If the GLXFBConfig does not support a back buffer, |
| then the value of GLX_SWAP_METHOD_OML is set to |
| GLX_SWAP_UNDEFINED_OML. |
| |
| Add to table 3.4: |
| |
| Attribute Default Selection and Sorting Sort Priority |
| Criteria |
| --------- ------- --------------------- ------------- |
| GLX_SWAP_METHOD_OML GLX_DONT_CARE Exact ??? |
| |
| New State |
| |
| None |
| |
| New Implementation Dependent State |
| |
| None |
| |
| Revision History |
| |
| Revision 4, 07/24/2001 - Finalized Status for OpenML 1.0. |
| Revision 3, 07/11/2001 - Assign enum values. |
| Revision 2, 07/11/2001 - Assign extension numbers for the registry. |
| Revision 1 - change Paula's draft to use OML affix. |
