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Name
ANGLE_query_surface_pointer
Name Strings
EGL_ANGLE_query_surface_pointer
Contributors
Vladimir Vukicevic
Daniel Koch
Contacts
Vladimir Vukicevic (vladimir 'at' pobox.com)
Status
Complete
Implemented (ANGLE r558)
Version
Version 3, February 11, 2011
Number
EGL Extension #28
Dependencies
This extension is written against the wording of the EGL 1.4
Specification.
Overview
This extension allows querying pointer-sized surface attributes,
thus avoiding problems with coercing 64-bit pointers into a 32-bit
integer.
New Types
None
New Procedures and Functions
EGLBoolean eglQuerySurfacePointerANGLE(
EGLDisplay dpy,
EGLSurface surface,
EGLint attribute,
void **value);
New Tokens
None
Additions to Chapter 3 of the EGL 1.4 Specification (EGL Functions and Errors)
Add to the end of the paragraph starting with "To query an
attribute associated with an EGLSurface" in section 3.5.6,
"Surface Attributes":
"If the attribute type in table 3.5 is 'pointer', then
eglQuerySurface returns EGL_FALSE and an EGL_BAD_PARAMETER error
is generated. To query pointer attributes, call:
EGLBoolean eglQuerySurfacePointerANGLE(
EGLDisplay dpy,
EGLSurface surface,
EGLint attribute,
void **value);
eglQuerySurfacePointerANGLE behaves identically to eglQuerySurface,
except that only attributes of type 'pointer' can be queried.
If an attribute queried via eglQuerySurfacePointerANGLE is not
of type 'pointer', then eglQuerySurfacePointer returns EGL_FALSE
and an EGL_BAD_PARAMETER error is generated."
Issues
Revision History
Version 3, 2011/02/11 - publish
Version 2, 2010/12/21 - fix typos.
Version 1, 2010/12/07 - first draft.
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