The plan all along was to eventualyl move isl out of the Vulkan
directory, because I intended i965 and anvil to share it.
A small problem I encountered when attempting to write unit tests for
isl precipitated the move. I discovered that it's easier to get isl
unit tests to build if I remove the extra, unneeded dependencies
injected by src/vulkan/Makefile.am. And the easiest way to remove those
unneeded dependencies is to move isl out of src/vulkan. (Unit tests come
in subsequent commits).
This test is a left-over of the initial development. It is unneeded and
misleading, so let's get rid of it.
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
It seems like disabling earlyz on a4xx also, by defaults, disables
fragcoord.z to the FS. For frag shaders that both read fragcoord(.z)
and write fragdepth, we need to set some extra bits to prevent a
lockup.
This lets us get rid of the hack of disabling fragcoord.z (which
prevented 0ad from lockups, but resulted in rendering corruption). Also
fixes fbo-depth-sample-compare.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
The picture id in this case is a VA-API surface handle, checking
for a certain value can't be correct.
Signed-off-by: Christian König <christian.koenig@amd.com>
v2: (by Ken, incorporating feedback from Matt Turner):
- Rewrite the push constant allocation code to be clearer.
- Only apply the minimum VS entries workaround on Gen 8.
v3: (by Ken)
- Fix a bug in v2 where we failed to allocate the full push constant
space when the number of enabled stages didn't divide the available
push constant space evenly. (Any left over space is now allocated
to the PS, as it was in v1.)
- Fix an off-by-one error in v2's number of enabled stages calculation.
- Use DIV_ROUND_UP for nicer formatting.
- Line wrapping fixes.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
This is an artifact of the way the separate samplers/textures series ended
up getting sent out and rebased. This should fix a number of CTS tests
involving geometry shaders.
The code generated may be vec4 or simd8 depending on how we start the
compiler.
To run the GS in SIMD8, set the INTEL_SCALAR_GS environment variable.
This was added in:
commit 36fd653817
Author: Kenneth Graunke <kenneth@whitecape.org>
Date: Wed Mar 11 23:14:31 2015 -0700
i965: Add scalar geometry shader support.
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
This change also adds explicit location support for structs and interfaces which
is currently missing in Mesa but is allowed with SSO and GLSL 1.50+.
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
This makes the code easier to follow, should be more efficient
and will makes it easier to add matching via explicit locations
in the following patch.
This patch also replaces the hash table with the newer
resizable hash table this should be more suitable as the table
is likely to only contain a small number of entries.
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
vertex header had both clip_pos and clip_vertex.
We only really need one (clip_pos) because the draw llvm shader would
overwrite the position output from the vs with the viewport transformed.
However, we don't really need the second one, which was only really used
for gl_ClipVertex - if the shader didn't have that the values were just
duplicated to both clip_pos and clip_vertex. So, just use this from the vs
output instead when we actually need it.
Also change clip debug to output both the data from clip_pos and the
clipVertex output (if available).
Makes some things more complex, some things less complex, but seems more
easy to understand what clipping actually does (and what values it uses
to do its magic).
Reviewed-by: Brian Paul <brianp@vmware.com
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Seems obvious now this should use the data from position and not clip_vertex
(albeit might not really make a difference).
Reviewed-by: Brian Paul <brianp@vmware.com
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
clip -> clip_vertex and pre_clip_pos -> clip_pos.
Looks more obvious to me what these values actually represent (so use
something resembling the vs output names).
Reviewed-by: Brian Paul <brianp@vmware.com
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This is just for code cleanup, conceptually the have_clipdist really
isn't per-vertex state, so don't put it there (just dependent on the
shader). Even though there wasn't really any overhead associated with
this, we shouldn't store random shader information in the vertex header.
Reviewed-by: Brian Paul <brianp@vmware.com
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
I'm pretty sure this should use position (i.e. pre_clip_pos) and not
the output from clipVertex. Albeit piglit doesn't care. It is what we
use in the clip test, and it is what every other driver does (as they
don't even have clipVertex output and lower the additional planes to
clip distances).
Reviewed-by: Brian Paul <brianp@vmware.com
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Unfortunately, this also means that we need to use a slightly different
algorithm for assign_constant_locations. The old algorithm worked based on
the assumption that each read of a uniform value read exactly one float.
If it encountered a MOV_INDIRECT, it would immediately bail and push the
whole thing. Since we can now read ranges using MOV_INDIRECT, we need to
be able to push a series of floats without breaking them up. To do this,
we use an algorithm similar to the on in split_virtual_grfs.
This commit moves us to an instruction based model rather than a
register-based model for indirects. This is more accurate anyway as we
have to emit instructions to resolve the reladdr. It's also a lot simpler
because it gets rid of the recursive reladdr problem by design.
One side-effect of this is that we need a whole new algorithm in
move_uniform_array_access_to_pull_constants. This new algorithm is much
more straightforward than the old one and is fairly similar to what we're
already doing in the FS backend.
Now that we have MOV_INDIRECT opcodes, we have all of the size information
we need directly in the opcode. With a little restructuring of the
algorithm used in assign_constant_locations we don't need param_size
anymore. The big thing to watch out for now, however, is that you can have
two ranges overlap where neither contains the other. In order to deal with
this, we make the first pass just flag what needs pulling and handle
assigning pull constant locations until later.
Instead of using reladdr, this commit changes the FS backend to emit a
MOV_INDIRECT whenever we need an indirect uniform load. We also have to
rework some of the other bits of the backend to handle this new form of
uniform load. The obvious change is that demote_pull_constants now acts
more like a lowering pass when it hits a MOV_INDIRECT.
This is a newer convention, which we prefer over ALIGN(x, n) / n.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
The compact VUE map only works when varying packing is in use.
Unfortunately, varying packing is disabled for TCS inputs.
This is needed to fix Piglit's tcs-input-read-array-interface test.
v2: Make lines fit in 80 columns (caught by Jordan Justen).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
TCS outputs and TES inputs both refer to a common "patch URB entry"
shared across all invocations. First, there are some number of
per-patch entries. Then, there are per-vertex entries accessed via
an offset for the variable and a stride times the vertex index.
Because these calculations need to be done in both the vec4 and scalar
backends, it's simpler to just compute the offset calculations in NIR.
It doesn't necessarily make much sense to use per-vertex intrinsics
afterwards, but that at least means we don't lose the per-patch vs.
per-vertex information.
v2: Use is_input/is_output helpers (suggested by Jordan Justen).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
TES outputs work exactly like VS outputs, so we can simply add a case
statement for those.
TCS inputs are very similar to geometry shaders - they're arrays of
per-vertex data. We use the same method I used for the scalar GS
backend.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Without varying packing, if a VS writes a compound variable, and the GS
only reads part of it, the base location of the variable may not
actually be in the VUE map.
To cope with this, we do lowering in terms of varying slots, add any
constant offsets to the base, and then do the VUE map remapping. This
ensures we only look up VUE map entries for slots which actually exist.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
My tessellation branch has two additional remap functions. I don't want
to replicate this logic there.
v2: Handle inputs/outputs separately (suggested by Jason Ekstrand).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
While we're at it, we also add support for the possibility that the
indirect is, in fact, a constant. This shouldn't happen in the common case
(if it does, that means NIR failed to constant-fold something), but it's
possible so we should handle it.
Chad Versace