This cleans up a bunch of noise in the compiled coordinate shaders (since
we don't need the varying outputs), and also from writemasked instructions
with negated src operands.
This took a couple of tries, and this is the squash of those attempts.
v2: Fix register file conflicts on the args in the
destination-is-accumulator case.
v3: Rebase on helper change and qir_inst4 change.
We will want to occasionally disable this again when we do clear support.
v2: Squash with the previous commit (I accidentally committed at two
stages of writing the change)
This introduces an IR (QIR, for QPU IR) to do optimization on. It's a
scalar, SSA IR in general. It looks like optimization is pretty easy this
way, though I haven't figured out if it's going to be good for our weird
register allocation or not (or if I want to reduce to basically QPU
instructions first), and I've got some problems with it having some
multi-QPU-instruction opcodes (SEQ and CMP, for example) which I probably
want to break down.
Of course, this commit mostly doesn't work, since many other things are
still hardwired, like the VBO data.
v2: Rewrite to use a bunch of helpers (qir_OPCODE) for emitting QIR
instructions into temporary values, and make qir_inst4 take the 4 args
separately instead of an array (all later callers wanted individual
args).
Note: This is the cutoff point where I switched from developing primarily
on the Pi to developing o the simulator. As a result, from this point on
the code is untested on the Pi (the kernel code I have currently wasn't
rendering anything at this commit, though the simulator renders
successfully, suggesting kernel bugs).
This mostly just takes every draw call and turns it into a sequence of
commands that clear the FBO and draw a single shaded triangle to it,
regardless of the actual input vertices or shaders. I copied the initial
driver skeleton mostly from freedreno, and I've preserved Rob Clark's
copyright for those. I also based my initial hardcoded shaders and
command lists on Scott Mansell (phire)'s "hackdriver" project, though the
bit patterns of the shaders emitted end up being different.
v2: Rebase on gallium megadrivers changes.
v3: Rebase on PIPE_SHADER_CAP_MAX_CONSTS change.
v4: Rely on simpenrose actually being installed when building for
simulation.
v5: Add more header duplicate-include guards.
v6: Apply Emil's review (protection against vc4 sim and ilo at the same
time, and dropping the dricommon drm bits) and fix a copyright header
(thanks, Roland)
The non-llvm path made sure that both clip and pre_clip_pos point to the data
output by position, not clipvertex, if user based clipping is disabled.
However, the llvm path did not, which apparently led to failures if
gl_ClipVertex was written but user plane clipping not enabled (bug 80183).
Why I have no idea really, but just make it match the non-llvm behavior...
Reviewed-by: Brian Paul <brianp@vmware.com>
The generators no longer use this.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reduces duplication, and will do so even more when we change the sampler
plumbing.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reduces duplication, and will do so even more when we change the sampler
plumbing.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Use both macros as in some cases using AC_CHECK_FUNCS alone may fail.
Thus HAVE_DLADDR will not be defined, and as a result most of the code
in megadriver_stub.c will not be compiled. Breaking the backwards
compatibility between older libGL/xserver(s) and DRI megadrivers.
Cc: Jon TURNEY <jon.turney@dronecode.org.uk>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>
[Emil Velikov] Commit message.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
The tests in an empty stub, which we're currently building twice.
If anyone is interested in expanding it (adding actual tests) they
can always bring it back.
Suggested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
This support is preliminary due to the fact that MSAA is not
actually implemented.
However, this patch does fix the piglit test:
spec/!OpenGL 3.2/glsl-resource-not-bound 2DMS (bug #79740).
(v2 RS: don't emit 4th coord as explicit lod)
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
The distinction between system values and ordinary inputs is not very
obvious in gallium - further fueled by the fact that they use the same
semantic names.
Still, if there's any value which imho really is a system value, it's the
primitive id input into the gs (while earlier (tessleation) stages could read
it, it is _always_ generated by the system). For some odd reason though (which
I'd classify as a bug but seems too complicated to fix) the glsl compiler in
mesa treats this as an ordinary varying, and everything else after that
(including the state tracker and other drivers) just go along with that.
But input fetching in gs for llvm based draw was definitely limited to the
ordinary (2-dimensional) inputs so only worked with other state trackers,
the code was also additionally relying on tgsi_scan_shader filling
uses_primid correctly which did not happen neither (would set it only for
all stages if it was a system value, but only set it for the fragment shader
if it was an input value).
This fixes piglit glsl-1.50-geometry-primitive-id-restart and primitive-id-in
in llvmpipe.
Reviewed-by: Brian Paul <brianp@vmware.com>
These values are always uints, casting them to floats does no good.
Fixes piglit glsl-1.50-geometry-primitive-id-restart tests for softpipe.
Reviewed-by: Brian Paul <brianp@vmware.com>
OpenCL 1.2 CL_MAP_WRITE_INVALIDATE_REGION sounds a lot like
PIPE_TRANSFER_DISCARD_RANGE:
From OpenCL 1.2 spec:
The contents of the region being mapped are to be discarded.
From p_defines.h:
Discards the memory within the mapped region.
v2: Move the code for validating flags to the front-end as
suggested by Francisco Jerez
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
The PRMs no longer have a single table for format capabilities. Multiple
tables take up less space, and are easier to maintain.
Encode typed write information while at it.
We have a CPU-side implementation of conditional rendering; it really
should be done on the GPU. It's not necessarily that hard, but nobody
has gotten to fixing it yet.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Previously, we explicitly set the execution size to BRW_EXECUTE_8 and
disabled compression for loop instructions. I can't imagine how this
could be correct in SIMD16 mode.
Looking at the history, it appears that this code has used BRW_EXECUTE_8
since 2007, when we had a SIMD8 backend that supported control flow and
a separate SIMD16 backend that didn't. Presumably, when we added SIMD16
support for shaders with control flow, we simply neglected to update it.
Note that Gen4-5 don't support SIMD16 on shaders with control flow.
This might be a candidate for stable, but would need to be rewritten
completely due to the brw_inst API changes in master.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
The only difference is setting PopCount on Gen4-5.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
We shouldn't need to set them, then set them differently.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
format_srgb.c is generated by format_srgb.py python script, having
format_srgb.c in git ignore list will silence git complaints about
untracked file.
Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Also delete the comment before that function. Everything in that
comment was either stale, wrong, or captured elsewhere.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This simplifies all the callers, and it enables the removal of one of
the function parameters.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
With two tests both numbered 118, there was a confusing off-by-two difference
between the last test number and the total number of tests (as reported by
glcpp-test).
With this rename, there's only an off-by-one difference left, (which is easy
to understand given the zero-based test numbering).
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Here is some additional stress testing of nested macros where the expansion
of macros involves commas, (and whether those commas are interpreted as
argument separators or not in subsequent function-like macro calls).
Credit to the GCC documentation that directed my attention toward this issue:
https://gcc.gnu.org/onlinedocs/gcc-3.2/cpp/Argument-Prescan.html
Fixing the bug required only removing code from glcpp. When first testing the
details of expansions involving commas, I had come to the mistaken conclusion
that an expanded comma should never be treated as an argument separator, (so
had introduced the rather ugly COMMA_FINAL token to represent this).
In fact, an expanded comma should be treated as a separator, (as tested here),
and this treatment can be avoided by judicious use of parentheses (as also
tested here).
With this simple removal of the COMMA_FINAL token, the behavior of glcpp
matches that of gcc's preprocessor for all of these hairy cases.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
