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Diffstat (limited to 'extensions/EGL_ANGLE_surface_d3d_texture_2d_share_handle.txt')
-rw-r--r-- | extensions/EGL_ANGLE_surface_d3d_texture_2d_share_handle.txt | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/extensions/EGL_ANGLE_surface_d3d_texture_2d_share_handle.txt b/extensions/EGL_ANGLE_surface_d3d_texture_2d_share_handle.txt new file mode 100644 index 00000000..917e4456 --- /dev/null +++ b/extensions/EGL_ANGLE_surface_d3d_texture_2d_share_handle.txt @@ -0,0 +1,95 @@ +Name + + ANGLE_surface_d3d_texture_2d_share_handle + +Name Strings + + EGL_ANGLE_surface_d3d_texture_2d_share_handle + +Contributors + + Vladimir Vukicevic + Daniel Koch + +Contacts + + Vladimir Vukicevic (vladimir 'at' pobox.com) + +Status + + Complete + Implemented (ANGLE r558) + +Version + + Version 2, December 21, 2010 + +Number + + EGL Extension #29 + +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 2D textures. For such surfaces, a D3D share + handle can be generated, allowing access to the same surface + from the Direct3D API. + +New Types + + None + +New Procedures and Functions + + None + +New Tokens + + Accepted in the <attribute> parameter of eglQuerySurfacePointerANGLE: + + EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE 0x3200 + +Additions to Chapter 3 of the EGL 1.4 Specification (EGL Functions and Errors) + + Add to table 3.5, "Queryable surface attributes and types": + + Attribute Type Description + --------- ---- ----------- + EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE pointer Direct3D share handle + + Add before the last paragraph in section 3.5, "Surface attributes": + + "Querying EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE returns a Direct3D + share handle, or NULL if a share handle for the surface is not + available. The share handle must be queried using + eglQuerySurfaceAttribPointerANGLE. Before using a Direct3D surface + created with this share handle, ensure that all rendering + to the EGLSurface with EGL client APIs has completed. + + The Direct3D share handle may be passed as the pSharedHandle + parameter of the Direct3D9Ex CreateTexture function, or via the + Direct3D10 OpenSharedResource function. If used with Direct3D 9, + the level argument to CreateTexture must be 1, and the dimensions + must match the dimensions of the EGL surface. If used with + Direct3D 10, OpenSharedResource should be called with the + ID3D10Texture2D uuid to obtain an ID3D10Texture2D object. + +Issues + +Revision History + + Version 3, 2011/02/11 - publish + + Version 2, 2010/12/21 + - renamed token to EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE (adding "2D") + - renamed extension to ANGLE_surface_d3d_texture_2d_share_handle + - added language about supported usage of the shared handle from D3D + + Version 1, 2010/12/07 - first draft. |