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