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