зеркало из https://github.com/AvaloniaUI/angle.git
101 строка
2.4 KiB
Plaintext
101 строка
2.4 KiB
Plaintext
Name
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ANGLE_platform_angle_opengl
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Name Strings
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EGL_ANGLE_platform_angle_opengl
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Contributors
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Shannon Woods, Google
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Geoff Lang, Google
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Courtney Goeltzenleuchter, Google
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Contacts
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Geoff Lang, Google (geofflang 'at' chromium 'dot' org)
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Status
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Draft
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Version
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Version 4, 2018-05-17
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Number
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EGL Extension XXX
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Extension Type
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EGL client extension
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Dependencies
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Requires ANGLE_platform_angle.
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Overview
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This extension enables selection of OpenGL display types and,
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for OpenGL ES display types, allows the application to pass
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in a handle to the EGL library to use.
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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 as values for the EGL_PLATFORM_ANGLE_TYPE_ANGLE attribute:
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EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x320D
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EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE 0x320E
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Accepted as an attribute name in the <attrib_list> argument of
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eglGetPlatformDisplayEXT:
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EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE 0x3480
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Additions to the EGL Specification
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None.
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New Behavior
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To request a display that translates to OpenGL or OpenGL ES, the value of
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EGL_PLATFORM_ANGLE_TYPE_ANGLE should be:
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- EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE for an OpenGL display,
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- EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE for a native OpenGL ES display.
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To request a specific maximum context version to use for the underlying
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API, EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE and
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EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE can be used.
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To pass in a handle to the system EGL library, use the attribute
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EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE. If EGL_PLATFORM_ANGLE_TYPE_ANGLE
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is not equal to EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE, an
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EGL_BAD_ATTRIBUTE is generated. If the handle provided with
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EGL_PLATFORM_ANGLE_EGL_HANDLE_ANGLE is not a valid EGL handle,
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behaviour is undefined.
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Issues
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None
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Revision History
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Version 1, 2014-06-05 (Geoff Lang)
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- Initial draft
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Version 2, 2014-10-27 (Geoff Lang)
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- Moved descriptions of platforms and major/minor versions from
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EGL_ANGLE_platform_angle spec to EGL_ANGLE_platform_angle_opengl.
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Version 3, 2014-11-26 (Geoff Lang)
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- Updated enum values.
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Version 4, 2018-05-17 (Courtney Goeltzenleuchter)
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- Add attribute for specifying underlying EGL library.
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