Prevent calls to glXGetSyncValuesOML() and glXWaitForMscOML()
from overwriting the (ust,msc) values of the last successfull
swapbuffers call (PresentPixmapCompleteNotify event), as
glXWaitForSbcOML() relies on those values corresponding to
the most recent completed swap, not to whatever was last
returned from the server.
Problematic call sequence without this patch would have been, e.g.,
glXSwapBuffers()
... wait ...
swap completes -> PresentPixmapComplete event -> (ust,msc)
updated to reflect swap completion time and count.
... wait for at least 1 video refresh cycle/vblank increment.
glXGetSyncValuesOML()
-> PresentNotifyMsc event overwrites (ust,msc) of swap
completion with (ust,msc) of most recent vblank
glXWaitForSbcOML()
-> Returns sbc of last completed swap but (ust,msc) of last
completed vblank, not of last completed swap.
-> Client is confused.
Do this by tracking a separate set of (ust, msc) for the
dri3_wait_for_msc() call than for the dri3_wait_for_sbc()
call.
This makes the glXWaitForSbcOML() call robust again and restores
consistent behaviour with the DRI2 implementation.
Fixes applications originally written and tested against
DRI2 which also rely on this not regressing under DRI3/Present,
e.g., Neuro-Science software like Psychtoolbox-3.
This patch fixes the problem.
v2: Rename vblank_msc/ust to notify_msc/ust as suggested by
Axel Davy for better clarity.
Cc: "10.3 10.4" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
targetSBC == 0 is a special case, which asks the function
to block until all pending OpenGL bufferswap requests have
completed.
Currently the function just falls through for targetSBC == 0,
returning bogus results.
This breaks applications originally written and tested against
DRI2 which also rely on this not regressing under DRI3/Present,
e.g., Neuro-Science software like Psychtoolbox-3.
This patch fixes the problem.
v2: Simplify as suggested by Axel Davy. Add comments proposed
by Eric Anholt.
Cc: "10.3 10.4" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Eric Anholt <eric@anholt.net>
A bunch of open-coded 'gpu_id > 300's seems like it will eventually
cause problems with future generations. There were already a few minor
problems with caps for features that still need additional work on a4xx.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Rather than duplicating this everywhere. Especially as on a4xx the
layout of layers and levels differs based on texture type.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
This code is complete nonsense and has apparently existed since I first
implemented register spilling in the VS two years ago.
Scratch reads are SEND messages, which ignore the destination writemask.
The comment about "data that may not have been written to scratch" is
also confusing - we always spill whole 4x2 registers, so such data
simply does not exist. We can safely ignore the writemask.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This code has been turned off for the last
decade. Considering 3Dnow is obsolete it
seems the bug will never be fixed so just
remove it.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Mario Kleiner
Emil Velikov
Rob Clark
Kenneth Graunke
Timothy Arceri
Brian Paul
Matt Turner