On Sat, Aug 13, 2016 at 12:59:46PM +0100, Chris Wilson wrote: > If the buffer has been freed by the kernel under memory pressure, it is > invalid to try and access the backing storage for that buffer in the > future - the backing storage is not recreated automatically. As such we > need to mark the GL object as being freed for unretained buffers and so > recreate the object on next use. > > Futhermore from the GL_APPLE_object_purgeable: > > "In contrast, by calling ObjectUnpurgeableAPPLE with an <option> of > UNDEFINED_APPLE, the application is indicating that it intends to > recreate the contents of the storage from scratch. Further, the > application is is stating that it would like the GL to do only the > minimal amount of work set PURGEABLE_APPLE to FALSE. If > ObjectUnpurgeableAPPLE is called with the <option> set to > UNDEFINED_APPLE, then ObjectUnpurgeableAPPLE will return the value > UNDEFINED_APPLE." > > we must always report GL_UNDEFINED_APPLE when called with > glObjectUnpurgeable(GL_UNDEFINED_APPLE). > > Testcase: piglit/object_purgeable-api-* > Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54909 -Chris
-- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
