| Name |
| |
| ANGLE_keyed_mutex |
| |
| Name Strings |
| |
| EGL_ANGLE_keyed_mutex |
| |
| Contributors |
| |
| Jeff Muizelaar |
| |
| Contacts |
| |
| Jeff Muizelaar, Mozilla (jmuizelaar 'at' mozilla.org) |
| |
| Status |
| |
| Implemented in ANGLE. |
| |
| Version |
| |
| Version 1, Oct 29, 2014 |
| |
| Number |
| |
| EGL Extension #?? |
| |
| Dependencies |
| |
| Requires the EGL_ANGLE_query_surface_pointer extension. |
| |
| This extension is written against the wording of the EGL 1.4 |
| Specification. |
| |
| Overview |
| |
| Some EGL implementations generate EGLSurface handles that are |
| backed by Direct3D 11 2D textures. This extension allows |
| obtaining the IDXGIKeyedMutex for such EGL surfaces. |
| |
| New Types |
| |
| None |
| |
| New Procedures and Functions |
| |
| None |
| |
| New Tokens |
| |
| Accepted in the <attribute> parameter of eglQuerySurfacePointerANGLE: |
| |
| EGL_DXGI_KEYED_MUTEX_ANGLE 0x33A2 |
| |
| Add to table 3.5, "Queryable surface attributes and types": |
| |
| Attribute Type Description |
| --------- ---- ----------- |
| EGL_DXGI_KEYED_MUTEX_ANGLE pointer IDXGIKeyedMutex |
| |
| Add before the last paragraph in section 3.5, "Surface attributes": |
| |
| "Querying EGL_DXGI_KEYED_MUTEX_ANGLE returns a IDXGIKeyedMutex, or NULL |
| if a keyed mutex for the surface is not available. The keyed mutex |
| must be queried using eglQuerySurfaceAttribPointerANGLE. Keyed Mutexes |
| are only available from EGL surfaces backed by Direct3D 11 surfaces. |
| Before using the keyed mutex, ensure that all rendering to the EGLSurface |
| with EGL client APIs has completed." |
| |
| Issues |
| |
| Revision History |
| |
| Version 1, 2014/10/29 - first draft. |
