With GLX_SWAP_COPY_OML and GLX_SWAP_EXCHANGE_OML it may happen in situations
when glXSwapBuffers() is immediately followed by for example another
glXSwapBuffers() or glXCopyBuffers() or back buffer age querying, that we
haven't yet allocated and initialized a new back buffer because there was
no GL rendering in between.
Make sure that we have a back buffer in those situations.
v2: Eliminate the drawable have_back_format member.
v3: Make sure we re-initialize the back even if it exists.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Add support for the exchange swap method. Since we're now forcing a fake front
buffer and we exchange the back and fake front on swaps, we don't need to add
much code.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Eliminate the back-to-fake-front copy by exchanging the previous back buffer
and the fake front buffer. This is a gain except when we need to preserve
the back buffer content but in that case we still typically gain by replacing
a server-side blit by a client side non-flushing blit.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
It's not used anywhere and now that we're about to exchange back- and
fake fronts it doesn't serve a purpose.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Support the GLX_SWAP_COPY_OML method. When this method is requested, we use
the same swapbuffer code path as EGL_BUFFER_PRESERVED.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
EGL uses the force_copy parameter to loader_dri3_swap_buffers_msc() to indicate
that it wants to preserve back buffer contents across a buffer swap.
While the loader then turns off server-side page-flipping there's nothing to
guarantee that a new backbuffer isn't chosen when EGL starts to render again,
and that buffer's content is of course undefined.
So rework the functionality:
If the client supports local blits, allow server-side page flipping and when
a new back is grabbed, if needed, blit the old back's content to the new back.
If the client doesn't support local blits, disallow server-side page-flipping
to avoid a client deadlock and then, when grabbing a new back buffer, sleep
until the old back is idle, which may take a substantial time depending on
swap interval.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
The code was relying on us always having a current context for client local
image blit operations. Otherwise the blit would be skipped. However,
glxSwapBuffers, for example, doesn't require a current context and that was a
common problem in the dri1 era. It seems the problem has resurfaced with dri3.
If we don't have a current context when we want to blit, try creating a private
dri context and maintain a context cache of a single context.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
It's not very usable since in the rare, but definitely existing case that
we don't have a current context, it will return NULL.
Presumably it will always be safe to use the dri screen the drawable was
created with for operations on that drawable.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Having two callbacks to manage a single int seems like an overkill.
Use a cached copy and update that when needed.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
---
Might want to look if the dimensions dance in .query_surface ...
speaking of which close to nobody implements that ...
Currently xmlconfig is conditionally used, only when --enable-dri is
available.
As the library has moved to src/util and has wider wisebase, this guard
is no longer correct. Strictly speaking - it wasn't since the
introduction of xmlconfig into st/nine a while ago.
Unconditionally enable xmlconfig and drop the linking. As said before
there's other users of the library, so depending on the configure
options we will get multiple definitions of said symbols.
NOTE: To avoid breaking other combinations, this commit adds the
xmlconfig link to the required places - throughout gallium and the DRI
loaders.
Cc: Aaron Watry <awatry@gmail.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
This implements a wait for glXWaitGL, glXCopySubBuffer, dri flush_front and
creation of fake front until all pending SwapBuffers have been committed to
hardware. Among other things this fixes piglit glx-copy-sub-buffers on dri3.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Cc: <mesa-stable@lists.freedesktop.org>
As of last commit, no invalid swap interval can be stored, so there's
no need to sanitize the values when reading them anymore.
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
If the application hasn't done any drawing since the last call, we
would reuse the same back buffer which was used for the previous swap,
which may not have completed yet. This could result in various issues
such as tearing or application hangs.
In the normal case, the behaviour is unchanged.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97957
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101683
Cc: mesa-stable@lists.freedesktop.org
[Michel Dänzer: Make Thomas' fix from bugzilla actually work as
intended, write commit log]
Same as the previous commit, but this one was split out because it's
a bit more complicated: this field is given as a pointer to a function,
so the function had to be changed as well, and the function was use in
a bunch of places, which needed updating as well.
Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Pretty much every other place does the same.
Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
By this allows us to fetch the device list/info w/o the revision field.
At the moment retrieving the latter wakes up the device.
Note: kernel patch to resolve that should be in 4.10.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Currently when running mesa on imx6 the following loader warnings
are seen:
# kmscube -D /dev/dri/card1
MESA-LOADER: device is not located on the PCI bus
MESA-LOADER: device is not located on the PCI bus
MESA-LOADER: device is not located on the PCI bus
Using display 0x1920948 with EGL version 1.4
As this is not an error message, change it to debug level in
order to have a cleaner log output.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
This is a DRI3 version of a change made for DRI2
(4d6d4f939e, "egl/dri2: implement query surface hook"),
that fixed failures in dEQP-EGL.functional.resize.surface_size.grow
and dEQP-EGL.functional.resize.surface_size.shrink.
Cc: Tapani Pälli <tapani.palli@intel.com>
Cc: Mark Janes <mark.a.janes@intel.com>
Cc: Chad Versace <chadversary@chromium.org>
Signed-off-by: Brendan King <Brendan.King@imgtec.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Otherwise we would fail with "implicit declaration of function" geteuid
and getenv respectively.
To trigger (re)move the libdrm.pc file and use the following:
$ ./autogen.sh --disable-egl --disable-gbm --disable-dri \
--with-dri-drivers=swrast --with-gallium-drivers=swrast
$ make
Cc: Vinson Lee <vlee@freedesktop.org>
Fixes: 3f462050c ("loader: Add an environment variable to override driver name choice.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99701
v2: [Emil: handle stdlib.h add commit message]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
My vc4 simulator has been implemented so far by having an entrypoint
claiming to be i965, which was a bit gross. The simulator would be a lot
less special if we entered through the vc4 entrypoint like normal, so add
a loader environment variable to allow the i965 fd to probe as vc4.
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This makes it possible to 'use' the imx-drm driver. Remeber that it
is not possible to have sysmbol names in C/C++ with a '-' in it.
Changes since v1:
- move the fix to loader.c
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v1)
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Changes since v1:
- renamed function to loader_get_extensions_name
- moved function into loader
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
V2: [Emil Velikov]
- Use local define.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
With previous patches nearly all the original code (as seen in the
various loaders) is gone.
Update the copyright/license section to reflect that.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reminiscent from the pre-loader days, were we had multiple instances of
the loader logic in separate places and one could build a "GALLIUM_ONLY"
version.
Since that is no longer the case and the loaders (glx/egl/gbm) do not
(and should not) require to know any classic/gallium specific we can
drop the argument and the related code.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Effectively everyone with actual hardware and/or requesting the
"device_name" requires a working libdrm. Thus they could/should already
be using the (now only) codepath.
Apart from the code simplification, we can slim down our configure.ac
even further. But that will be done in separate patch(es).
Cc: Gary Wong <gtw@gnu.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
As of last commit nothing in mesa depends on libudev.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
With this all the libudev related code is now gone.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Currently not everyone has libudev and with follow-up patches we'll
completely remove the divergent codepaths.
Use the libdrm drm device API to construct the required ID_PATH_TAG-like
string, to preserve the current functionality for libudev users and
allow others to benefit from it as well.
v2: Drop ranty comments, pick the correct device
v3: \n -> \0 in PCI_ID_PATH_TAG_LENGTH comment (Axel).
v4: Use snprintf (Nicolai)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Improves readability and allows us to do further cleanups a lot easier.
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Currently mesa has three code paths in the loader - libudev, manual
sysfs and drm ioctl one.
Considering the issues we had with libudev - strip those down in favour
of the libdrm drm device API. The latter can be implemented in any way
depending on the platform and can be reused by others.
v2: Use correct message on drmGetDevice failure. (Nicolai)
Cc: Jonathan Gray <jsg@jsg.id.au>
Cc: Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
This tries to mirrors the codepath taken by DRI2 in IntelSetTexBuffer2()
and fixes many applications when using DRI3:
- Totem with libva on hw-accelerated decoding
- obs-studio, using Window Capture (Xcomposite) as a Source
- gstreamer with VAAPI
v2:
- introduce get_dri_screen() in the dri3 loader's vtable (krh)
Tested-by: Timo Aaltonen <tjaalton@ubuntu.com>
Tested-by: Ionut Biru <biru.ionut@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71759
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Martin Peres <martin.peres@linux.intel.com>
This allows querying the current active screen from the
loader's common code.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Martin Peres <martin.peres@linux.intel.com>
This can make a significant difference for performance with some extreme
test cases such as vblank_mode=0 glxgears.
Fixes: 1e3218bc5b ("loader/dri3: Overhaul dri3_update_num_back")
Cc: "12.0 11.2" <mesa-stable@lists.freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97549
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
When trying to get a device name for an fd using sysfs, it would always fail
as it was expecting key/value pairs to be delimited by '\0', which is not the
case.
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
NV34 and possibly other NV3x hardware has the capability of exposing the
NV25 graph class. This allows forcing nouveau_vieux to be used instead
of the gallium driver, primarily for testing purposes. (Among other
things, NV2x only ever came as AGP or inside an Xbox, never PCI/PCIe).
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Always use 3 buffers when flipping. With only 2 buffers, we have to wait
for a flip to complete (which takes non-0 time even with asynchronous
flips) before we can start working on the next frame. We were previously
only using 2 buffers for flipping if the X server supports asynchronous
flips, even when we're not using asynchronous flips. This could result
in bad performance (the referenced bug report is an extreme case, where
the inter-frame stalls were preventing the GPU from reaching its maximum
clocks).
I couldn't measure any performance boost using 4 buffers with flipping.
Performance actually seemed to go down slightly, but that might have
been just noise.
Without flipping, a single back buffer is enough for swap interval 0,
but we need to use 2 back buffers when the swap interval is non-0,
otherwise we have to wait for the swap interval to pass before we can
start working on the next frame. This condition was previously reversed.
Cc: "12.0 11.2" <mesa-stable@lists.freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97260
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Without this, the X server may accumulate stale Present event contexts
if a client ends up creating and destroying DRI drawables for the same
window.
v2: Based on Chris Wilson's review:
* Use xcb_present_select_input_checked so that protocol errors
generated by old X servers can be handled gracefully
* Use xcb_discard_reply() instead of free(xcb_request_check())
Fix warnings like these due to HAVE_LIBDRM being inconsistently defined:
external/libdrm/include/drm/drm.h:839:30: warning: redefinition of typedef 'drm_clip_rect_t' is a C11 feature [-Wtypedef-redefinition]
typedef struct drm_clip_rect drm_clip_rect_t;
HAVE_LIBDRM needs to be set project wide to fix this. This change also
harmlessly links libdrm with everything, but simplifies the makefiles a
bit.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
