ilo: clear writer pointer after unmapping

It does not look like an issue now but it is good to be future proof.  Spotted
by Courtney Goeltzenleuchter.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
glx: Fix glxUseXFont for glxWindow and glxPixmaps

The current implementation of glxUseXFont requires creating
a temporary pixmap and graphics context, which requires a real
old-school X11 Window, not a glxDrawable. This patch changes
things so that glxUseXFont will also accept a glxWindow or
glxPixmap, and lookup the underlying X11 Drawable. Without
this patch glxUseXFont generates a giant stream of Xerrors
about bad drawables and bad graphics contexts.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54372

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Brian Paul <brianp@vmware.com>
auxilary/os: Add DragonFly BSD support in os_get_total_physical_memory.

This patch fixes this build error on DragonFly BSD.

  CC       os/os_misc.lo
os/os_misc.c: In function 'os_get_total_physical_memory':
os/os_misc.c:132:2: error: #error Unsupported *BSD

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
vc4: Add support for having 0 vertex elements used.

You have to load at least 1, according to the simulator.  Fixes 4 piglit
tests and even more ES2 conformance tests.
vc4: Fix render target NPOT alignment at small miplevels.

The texturing hardware takes the POT level 0 width/height and minifies
those.  This is different from what we were doing, for example, for
273-wide's level 5: POT(273>>5) == 8, while POT(273)>>5 == 16.

Fixes piglit-depthstencil-render-miplevels 273.
automake: explicitly set TARGET_RADEON_{WINSYS,COMMON}

Originally the variables were set only once via the ?= operator but
that causes issues when doing incremental builds. They appear to be
undefined and missing from the dependency list despite their addition
to LIBADD.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84807
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
ilo: Build pipe-loader for ilo

Trivial patch to create the pipe loader for ilo. All the code was already there.

Signed-off-by: Nick Sarnie <commendsarnex@gmail.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
r300/compiler: remove useless check

This code is already in if (!variable->C->is_r500) so no need check
twice.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: David Heidelberger <david.heidelberger@ixit.cz>
freedreno: use tgsi_lowering

Now that the freedreno_lowering code is moved to tgsi_lowering, remove
our private copy and switch over to using the common version.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
nouveau: 3d textures are unsupported, limit 3d levels to 1

Ideally there would be a swrast fallback, but the driver isn't ready for
that. This should avoid crashes if someone tries to use 3d textures
though.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Cc: mesa-stable@lists.freedesktop.org
st/gbm: fix order of arguments passed to is_format_supported

Reported by Coverity

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Cc: mesa-stable@lists.freedesktop.org
i965/fs: Use the correct regs_written on unspill instructions

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
clover: Fix regression in module serialization

We need to serialize semantic information for arguments, which was added
in 06139c56fa070f84a931a4ddbdb894c9e8d24f55.

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
configure.ac: check for libexpat when no pkg-config is available

Previously, when no pkg-config was available for
libexpat we would just add the needed linking
flags without any extra check.

Now, we check that the library and the headers are
also installed in the building environment.

Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
winsys/radeon: Use separate caching buffer manager for each set of flags

Otherwise the caching buffer manager may return a buffer which was created
with a different set of flags, which can cause trouble.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
r600g,radeonsi: Use staging texture for transfers if any miplevel is tiled

We set the NO_CPU_ACCESS flag for BO allocation in that case, so direct CPU
access may not work.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
r600g,radeonsi: Only set use_staging_texture = TRUE once

No need to check for setting the flag after we set it already.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
i965: Allow CSE on Gen4-5 unary math.

Due to the implicit move-from-GRF, unary math looks a lot like the Gen6+
math instruction: it's a single instruction (SEND) with a GRF source.
The difference is that it also implicitly clobbers a message register.

The only visible effect is that CSE will remove the MRF-clobbering from
later math operations.  This should be fine; compute_to_mrf and
remove_redundant_mrf_writes don't look at the values populated by
implied writes, so they can't rely on those values being present.
Less interference may actually help those passes make more progress.

Binary math is still problematic, since it involves a separate MOV
instruction to load the second operand.  We continue disallowing CSE for
binary math operations.

total instructions in shared programs: 3340303 -> 3340100 (-0.01%)
instructions in affected programs:     26927 -> 26724 (-0.75%)
Nothing hurt, gained, or lost.  ~6% reduction on a few shaders.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
vc4: Move the output semantics setup to a helper.

I want to reuse it elsewhere to set up outputs that aren't in the TGSI.
vc4: Add support for user clip plane and gl_ClipVertex.

Fixes about 15 piglit tests about interpolation and clipping.