The differences with DRI2 GPU offloading are:
a) There's no logic for GPU offloading needed in the Xserver
b) for DRI2, the card would render to a back buffer, and
the content would be copied to the front buffer (the same buffers
everytime). Here we can potentially use several back buffers and copy
to buffers with no tiling to share with X. We send them with the
Present extension.
That means than the DRI2 solution is forced to have tearings with GPU
offloading. In the ideal scenario, this DRI3 solution doesn't have this
problem.
However without dma-buf fences, a race can appear (if the card is slow
and the rendering hasn't finished before the server card reads the buffer),
and then old content is displayed. If a user hits this, he should probably
revert to the DRI2 solution (LIBGL_DRI3_DISABLE). Users with cards fast
enough seem to not hit this in practice (I have an Amd hd 7730m, and I
don't hit this, except if I force a low dpm mode)
c) for non-fullscreen apps, the DRI2 GPU offloading solution requires
compositing. This DRI3 solution doesn't have this requirement. Rendering
to a pixmap also works.
d) There is no need to have a DDX loaded for the secondary card.
V4: Fixes some piglit tests
Signed-off-by: Axel Davy <axel.davy@ens.fr>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This doesn't change anything to the intel DRI3 implementation,
but enables the gallium implementation to use dri2.stamp instead
of relying on the stamp shared with the st backend.
Signed-off-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Move the image extension setup in with all the others in
bind_extensions, and improve the check to both version
and function pointer.
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Signed-off-by: Dave Airlie <airlied@redhat.com>
While the official INTEL_swap_event specification says that the drawable
field should contain the GLXDrawable, not the Drawable, the existing
DRI2 code in dri2.c that translates from DRI2_BufferSwapComplete sends out
GLX_BufferSwapComplete with the Drawable's ID, so existing codebases
like Clutter/Cogl rely on getting the Drawable.
Match DRI2's error here and stuff the event with the X Drawable, not
the GLX drawable.
This fixes apps seeing wrong drawables through an indirect GLX context
or with DRI3, which uses the GLX_BufferSwapComplete event directly on
the wire instead of translates Present in mesa.
At the same time, also modify the structure for the event to make sure
that clients don't make the same mistake. This is not an API or ABI
break, as GLXDrawable and Drawable are both typedefs for XID.
Signed-off-by: Jasper St. Pierre <jstpierre@mecheye.net>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Prior to GLX 1.3 there was the glxMakeCurrent() function that took a
single drawable handle. The Drawable could be either a bare XID for a
Window or an XID for a glxpixmap.
GLX 1.3 added glxMakeContextCurrent that takes 2 handles: one for
reading, one for writing. Nowadays the old glxMakeCurrent call is
implemented as a call to glxMakeContextCurrent with the single handle
duplicated.
Because of this it is allowed to use a plain-old Window ID as an
argument to glxMakeContextCurrent, although nobody really documents this
sort of thing. The manpage for the NEW call specifies the arguments as
GLXPixmaps, but the actual code accepts Window XIDs too, and handles
them correctly.
Similarly, the glxSelectEvents function can also take a bare Window XID.
The "piglit" tests all use GLXWindows and/or GLXPixmaps. You never
tested swap events with a bare Window XID. That is what my app was
doing.
The swap_events code worked with Window XIDs in mesa 7.x.y. The new code
added in versions 8, 9, and 10 assumes that all buffer swap events have
a GLXPixmap associated with them. Because of the historical quirks
above, this is not true. Swap events for bare Window XIDs do NOT have a
glxpixmap resulting in a segfault.
Any app that uses the old school glxMakeCurrent call with a Window XID
while trying to use swap_events will crash when the libs try to lookup
the nonexistent GLXPixmap associated with the incoming swap event.
I believe that the people who wrote the spec overlooked this, because
the "sbc" field comes from the OML_sync extension that is defined in
terms of glxpixmaps only.
v2 (idr): Formatting changes.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54372
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
because no matching fbConfigs or visuals could be found.
Nearly all the error cases in *createScreen() issue an error message to diagnose
the failure to initialize before branching to handle_error. The few remaining
error cases which don't should probably do the same.
(At the moment, it seems this can be triggered in drisw with an X server which
reports definite values for MAX_PBUFFFER_(WIDTH|HEIGHT|SIZE), because those
attributes are checked for an exact match against 0.)
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
The code that parses LIBGL_DRIVERS_PATH was printing an
error for every attempted dlopen. It's not an error to
have to check multiple items in the path, only an error if
no suitable library is found. Reduced the load error to
a warning to match behavior of dynamic linker.
Signed-off-by: Courtney Goeltzenleuchter <courtney@LunarG.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Some untangling to fix building in the dri_platform=none, --enable-driglx-direct
case, where only driswast can be used.
Turn the test for including the glXGetScreenDriver()/glXGetScreenDriver()
interface used by xdriinfo from !GLX_USE_APPLEGL into a positive form, as it is
only useful when dri_platform=drm
Add additional GLX_USE_DRM tests so DRI[123] renderers are only used when
dri_platform=drm
Note that swrast and indirect must still be disabled in the APPLEGL case at the
moment, which makes things more complex than they need to be. More untangling
is needed to allow that
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
There is no reason anymore to load with RTLD_GLOBAL and for some driver
this even result in dlclose failing to unload leading to catastrophic
failure with swrast fallback.
Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Define GLX_USE_APPLEGL, as config/darwin used to, to turn on specific code to
use the applegl direct renderer
Convert src/glx/apple/Makefile to automake
Since the applegl libGL is now built by linking libappleglx into libGL, rather
than by linking selected files into a special libGL:
- Remove duplicate code in apple/glxreply.c and apple/apple_glx.c. This makes
apple/glxreply.c empty, so remove it
- Some indirect rendering code is already guarded by !GLX_USE_APPLEGL, but we
need to add those guards to indirect_glx.c, indirect_init.c (via it's
generator), render2.c and vertarr.c so they don't generate anything
Fix and update various includes
glapi_gentable.c (which is only used on darwin), should be included in shared
glapi as well, to provide _glapi_create_table_from_handle()
Note that neither swrast nor indirect is supported in the APPLEGL path at the
moment, which makes things more complex than they need to be. More untangling
is needed to allow that
v2: Correct apple/Makefile.am for srcdir != builddir
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
- Don't require xcb-dri[23] etc. if we aren't building for a target with DRM, as
we won't be using dri[23]
- Enable a more fine-grained control of what DRI code is built, so that a libGL
using direct swrast can be built on targets which don't have DRM.
The HAVE_DRI automake conditional is retired in favour of a number of other
conditionals:
HAVE_DRI2 enables building of code using the DRI2 interface (and possibly DRI3
with HAVE_DRI3)
HAVE_DRISW enables building of DRI swrast
HAVE_DRICOMMON enables building of target-independent DRI code, and also enables
some makefile cases where a more detailled decision is made at a lower level.
HAVE_APPLEDRI enables building of an Apple-specific direct rendering interface,
still which requires additional fixing up to build properly.
v2:
Place xfont.c and drisw_glx.c into correct categories.
Update 'make check' as well
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Fix build for darwin, when ./configured --disable-driglx-direct
- darwin ld doesn't support -Bsymbolic or --version-script, so check if ld
supports those options before using them
- define GLX_ALIAS_UNSUPPORTED as config/darwin used to, as aliasing of non-weak
symbols isn't supported
- default to -with-dri-drivers=swrast
v2:
Use -Wl,-Bsymbolic, as before, not -Bsymbolic
Test that ld --version-script works, rather than just looking for it in ld --help
Don't use -Wl,--no-undefined on darwin, either
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
This should have happend around the time of commit 4680d23, but Keith's
DRI3 patches and my GLX_MESA_query_renderer patches crossed in the mail.
I don't have a working DRI3 setup, so I haven't been able to actually
verify this. I'm hoping that someone can piglit this for me on DRI3...
It's also unfortunate the DRI2 and DRI3 can't share more code.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: Keith Packard <keithp@keithp.com>
Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Use a const array with the extensions, rather than assigning each
one to a fixed size array at runtime.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Make sure that the DRI*Extensions report the version of the interface
implemented over the listed in the headers. While both are currently
the same, this may change in the future.
v2: Keep loader extensions handling as is.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> (v1)
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
With commit e59fa4c46c8("dri2: release texture image.") we updated the
extension without bumping the version number. The patch itself added an
interface required to enable texture_from_pixmap on certain platforms.
The new code was effectively never build, as it depended on
__DRI_TEX_BUFFER_VERSION >= 3, which never came to be in upstream mesa.
This commit bumps the version number, drops the __DRI_TEX_BUFFER_VERSION
checks and resolves all the build conflicts. Additionally it add a version
check as egl and dri3, as require version 2 of the extension which does
not have the releaseTexBuffer hook.
Cc: Juan Zhao <juan.j.zhao@intel.com>
Cc: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
With commit 1f1928db001(glx: Drop _Xglobal_lock while we create and
initialize glx display) we've split the big _Xglobal_lock handling in
a more fine grained manner.
Unfortunatelly we forgot to drop the unlock_mutex on the error paths,
leading to undefined behaviour as the mutex is already unlocked.
Cc: Kristian Høgsberg <krh@bitplanet.net>
Cc: "9.2 10.0 10.1" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
OpenBSD does not have DT_NEEDED entries for libc by design,
over concerns how the symbols would be referenced after
changing the major version of the library.
So avoid -no-undefined checks on OpenBSD as they will fail.
v2: don't include the -no-undefined libtool option in the variable
and change -Wl,--no-undefined references in Automake.inc as well.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76856
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Previously GLX_EXT_buffer_age has always been advertised as supported because
both client_glx_support and client_glx_only where set. So it did not matter
that direct_support is only set when running dri3 and we ended up always
advertising it.
Fix that by not setting client_glx_only for buffer_age in known_glx_extensions.
Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
By doing GC the linker removes all the symbols that are not referenced
and/or used by the final library. This results in a saving of ~100K
up-to ~600K per (stripped) binary (classic vs gallium drivers).
If interested one can ask the compiler to print the sections that are
removed using -Wl,--print-gc-sections.
v2: Check if ld supports the flag before using it.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Matt Turner <mattst88@gmail.com> (v1)
... apart from the dri drivers.
With this final change we can build mesa without fear that
the resulting libraries will have unresolved symbols.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
v2: Indent according to Mesa style, reuse sbc instead of making a new
swap_count field, and actually get a usable back before returning the
age of the back (fixing updated piglit tests). Changes by anholt.
Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Reviewed-by: Robert Bragg <robert@sixbynine.org> (v1)
Reviewed-by: Adel Gadllah <adel.gadllah@gmail.com> (v2)
Reviewed-by: Eric Anholt <eric@anholt.net>
With the buffer_age code, I need to be able to potentially call this more
than once per frame, and it would be bad if a new special event showing up
meant I chose a different back mid-frame. Now, once we've chosen a back
for the frame, another find_back will choose it again since we know that
it won't have ->busy set until swap.
Note that this makes find_back return a buffer id instead of a backbuffer
index. That's kind of a silly distinction anyway, since it's an identity
mapping between the two (it's the front buffer that is at an offset).
Reviewed-By: Adel Gadllah <adel.gadllah@gmail.com>
- xf86dri.h is the old dri1 header, not required by dri2 nor dri3
- fold xf86drm.h inclusiong inside dri2.h
- dri3_glx does not have any drm specific dependencies
- glapi.h is not required by the dri2 and dri3 codepaths
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Recent commit fixed build issues in dri2_query_renderer.c by
wrapping in defined(direct_rendering) && !defined(applegl)
This patch targets the query_renderer tests, so that make check
passes on platforms such as hurd and cygwin.
v2: (Emil)
- Rebase and update commit message.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Some platforms different library extension - dll, dylib, a.
Honor that when we are creating the required links.
Rename LIB_EXTENSION to LIB_EXT while we're here.
With libglapi linking aside, building classic drivers on
non-linux platforms should be possible now.
v2: Resolve conflicts.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
In the cases where one links against the static glapi.la there
is no need to create temporary variables only to explicitly
link agaist it.
Instead use SHARED_GLAPI_LIB to explicitly indicate when one
is building and linking with the shared glapi provider.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Axel Davy