| Name |
| |
| ANGLE_get_serialized_context_string |
| |
| Name Strings |
| |
| GL_ANGLE_get_serialized_context_string |
| |
| Contributors |
| |
| Jamie Madill, Google |
| |
| Contact |
| |
| Jamie Madill, Google (jmadill 'at' google.com) |
| |
| Status |
| |
| Implemented in ANGLE. |
| |
| Version |
| |
| Last Modified Date: April 2, 2021 |
| Revision: #1 |
| |
| Number |
| |
| TBD |
| |
| Dependencies |
| |
| OpenGL ES 2.0 is required. |
| |
| Overview |
| |
| Adds a query for a serialized string representation of a context. |
| Useful for testing to easily compare two states. |
| |
| New Tokens |
| |
| Accepted by the <name> parameter of glGetString: |
| |
| SERIALIZED_CONTEXT_STRING_ANGLE 0x96B0 |
| |
| Additions to Chapter 6 of the OpenGL ES 2.0 Specification (Querying GL State) |
| |
| Update Section 6.1.5 "String Queries" to accept the new enum specified |
| above. The SERIALIZED_CONTEXT_STRING_ANGLE string is an implementation- |
| dependent representation of the current context state. Two contexts |
| with the same internal state are guaranteed to have the same value. Note |
| that the reverse is not true - two contexts with different states are |
| may also have the same serialized string. |
| |
| New State |
| |
| None. |
| |
| Issues |
| |
| 1) Should two contexts with different states return different strings? |
| |
| RESOLVED: We don't provide a guarantee that every state is serialized |
| into the string. This loose wording lets the extension provide |
| some additional extra validation without being overly strict and |
| making the implementation difficult. It also allow a no-op |
| implementation to satisfy the extension requirements. |
| |
| Revision History |
| |
| 2021/04/02 jmadill Initial revision. |
| |
