Here's a series of extensions necessary to perform reasonable direct display operations, either directly through DRM with no window system, or using RandR and Linux leases.
There's one new extension, MESA_query_timestamp which performs the same operation as glGetInteger64v(GL_TIMESTAMP, ×tamp) -- it gets the current GPU tick using an immediate register read so that the application can correlate GPU and CPU times. I'd love to be able to have a single call that got both CPU and GPU times so we could put that in the kernel, but there's no standard timestamp for the various winsys layers (although most (all?) appear to use MONOTONIC currently, at least on Linux). I've refactored this series so that each patch adds a single extension, and the code for each extension is generally grouped together. I did not split the code in the new wsi_common_display.c apart; it's all related to implementing various modes related to KHR_display, so I didn't see a good place to break it apart that wouldn't end up with a bunch of extra complexity. -keith _______________________________________________ mesa-dev mailing list firstname.lastname@example.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev