SPIR-V/Vulkan have a special image type for input attachments
called the subpass type. It has different characteristics than
other images types.
The main one being it can only be an input image to fragment
shaders and loads from it are relative to the frag coord.
This adds support for it to the GLSL types. Unfortunately
we've run out of space in the sampler dim in types, so we
need to use another bit.
v2: Fixup subpass input name (Jason)
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Gen6 only has one additional restriction over Gen7+, so we just add it
to the existing gen7 function (which actually covers later gens too).
This should stop FINISHME spew when running GL on Sandybridge.
v2: Fix bytes per block vs. bits per block confusion (Jason) and
rename function to gen6_filter_tiling (Jason and Chad).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Note that ASTC support is not actually mandated for this extension to be
exposed.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
From the ARB_gpu_shader5 spec:
The built-in functions interpolateAtCentroid() and interpolateAtSample()
will sample variables as though they were declared with the "centroid"
or "sample" qualifiers, respectively.
When running with persample dispatch forced by the API, we interpolate
anything that isn't flat as if it's qualified by "sample". In order to
keep interpolateAtCentroid() consistent with the "centroid" qualifier, we
need to make interpolateAtCentroid() do sample interpolation instead.
Nothing in the GLSL spec guarantees that the result of
interpolateAtCentroid is uniform across samples in any way, so this is a
perfectly fine thing to do.
Fixes 8 of the new dEQP-VK.pipeline.multisample_interpolation.* Vulkan CTS
tests that specifically validate consistency between the "sample" qualifier
and interpolateAtSample()
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Some apps issue redundant glLoadMatrixf() calls with the same matrix.
Try to avoid setting dirty state in that situation.
This reduces the number of constant buffer updates by about half in
ET Quake Wars.
Tested with Piglit, ETQW, Sauerbraten, Google Earth, etc.
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Structurally, this is very similar to the existing Apple-DRI code, except I
have chosen to implement this using the __GLXDRIdisplay, etc. vtables (as
suggested originally in [1]), rather than a maze of ifdefs. This also means
that LIBGL_ALWAYS_SOFTWARE and LIBGL_ALWAYS_INDIRECT work as expected.
[1] https://lists.freedesktop.org/archives/mesa-dev/2010-May/000756.html
This adds:
* the Windows-DRI extension protocol headers and the windowsdriproto.pc
file, for use in building the Windows-DRI extension for the X server
* a Windows-DRI extension helper client library
* a Windows-specific DRI implementation for GLX clients
The server is queried for Windows-DRI extension support on the screen before
using it (to detect the case where WGL is disabled or can't be activated).
The server is queried for fbconfigID to pixelformatindex mapping, which is
used to augment glx_config.
The server is queried for a native handle for the drawable (which is of a
different type for windows, pixmaps and pbuffers), which is used to augment
__GLXDRIdrawable.
Various GLX extensions are enabled depending on if the equivalent WGL
extension is available.
This is supposed to be exposed with the GL_KHR_robustness extension,
which we support on ES 2.0 and later. On desktop GL, it's also exposed
by GL_ARB_robustness, which is supported by all drivers ("dummy_true").
so we also allow desktop GL.
Fixes:
- ES32-CTS.robust.robustness.noResetNotification
- ES32-CTS.robust.robustness.loseContextOnReset
Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Without this bit set, the value in "L3 Atomic Disable" won't get applied by
the hardware so we won't properly get L3 atomic caching.
Fixes dEQP-VK.spirv_assembly.instruction.compute.opatomic.compex and 198 of
the dEQP-VK.image.atomic_operations.* tests on HSW
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
The Vulkan driver sets 3DSTATE_DRAWING_RECTANGLE once to MAX_INT x MAX_INT
at the GPU initialization time and never sets it again. The GL driver sets
it every time the framebuffer changes. Originally, blorp set it to the
size of the drawing area but meant we had to set it back in the Vulkan
driver. Instead, we can easily just do that in the GL driver's blorp_exec
implementation and not set it in blorp core.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Previously, we relied on a driver hook for 3DSTATE_MULTISAMPLE. However,
now that Vulkan and GL use the same sample positions, we can set up
3DSTATE_MULTISAMPLE directly in blorp and delete the driver hook.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Non-16B-aligned pull constant loads are unlikely to be particularly
useful given that you can get roughly the same effect by using
swizzles on the result.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
It might be useful to actually handle this once copy propagation
becomes smarter about register-misaligned offsets.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
A better fix would be to do something along the lines of the FS
back-end spilling code and emit a scratch read before any instruction
that overwrites the register to spill partially due to a non-zero
sub-register offset. In the meantime mark registers used with a
non-zero sub-register offset as no-spill to prevent the spilling code
from miscompiling the program.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This prevents it from trying to propagate a copy through a
register-misaligned region. MOV instructions with a misaligned
destination shouldn't be treated as a direct GRF copy, because they
only define the destination GRFs partially. Also fix the interference
check implemented with is_channel_updated() to consider overlapping
regions with different register offset to interfere, since the
writemask check implemented in the function is only valid under the
assumption that the source and destination regions are aligned
component by component.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cmod propagation would misoptimize the program if the destination
offset of the generating instruction wasn't exactly the same as the
source region offset of the copy instruction. In preparation for
adding support for sub-GRF offsets to the VEC4 IR.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Because the pass already checks that the destination offset of each
'scan_inst' that needs to be rewritten matches 'inst->src[0].offset'
exactly, the final offset of the rewritten instruction is just the
original destination offset of the copy. This is in preparation for
adding support for sub-GRF offsets to the VEC4 IR.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
For simplicity just assume that two writes to the same GRF with
different sub-GRF offsets will potentially interfere and break the
dependency control chain. This is in preparation for adding sub-GRF
offset support to the VEC4 IR.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This should also have the side effect of fixing convert_to_hw_regs()
to handle sub-GRF register offsets.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
The offset printing code in fs_visitor::dump_instruction() was doing
things differently for sources and destinations and for each register
file -- In some cases it would be added to the base register number
fs_reg::nr, in other cases it would follow the base register separated
with a plus sign, in other cases (uniforms) it would do both (!). The
sub-register offset was also being printed or not rather
inconsistently. Fix it.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Get rid of some leftover redundant arithmetic introduced during the
conversion to byte offsets and sizes that can be simplified easily.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
component() was generally a better alternative because of several
issues set_smear() had:
- It wouldn't take the original stride and offset of the register
into account, which means that set_smear() on the result of
e.g. another set_smear() call or an offset() call would give a
bogus region as result.
- It was an inherently destructive operation. See the
'nir_intrinsic_shader_clock' hunk below for how this could lead to
subtle bugs in cases where set_smear() was called multiple times on
the same register like 'r.set_smear(0), r.set_smear(1)' with the
expectation that each call would return a separate value instead of
a reference to the same subsequently mutated object.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Also changed the argument names since 'src' and 'dst' don't make that
much sense outside of the context of copy propagation.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This makes the function less annoying to use and more accurate -- We
shouldn't propagate a copy into a register region that wasn't fully
contained in the destination of the copy (IOW, a source region that
wasn't fully defined by the copy) just because the number of registers
written and read by each instruction happened to get rounded up to the
same GRF multiple.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Using component_size() is easier and generally more correct because it
takes into account the register type and stride for you.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
These were bashing the 'offset' and 'stride' values of several
registers without taking the previous value into account, which
probably didn't matter in practice for optimize_frontfacing_ternary()
because the 'tmp' register already had a known region, but it would
have given the wrong region as result in the other cases in
lower_integer_multiplication(). subscript(..., i) is a more
straightforward way to take the i-th field of a given type from each
channel of a register which should give the right answer as result
regardless of the original 'offset' and 'stride' parameters of the
register region.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
In the most common case this can now be implemented as a simple
addition because the offset is already encoded as a single scalar
value in bytes.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
The 'scan_inst->dst.offset % REG_SIZE' term in the final
'scan_inst->dst.offset' calculation is obviously bogus. The offset
from the start of the copy destination register 'inst->dst' where the
destination of the generating instruction 'scan_inst' would be written
to (before compute-to-mrf runs) is just the offset of 'scan_inst->dst'
relative to the source of the copy instruction (AKA rel_offset in the
code below).
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This was dropping 'inst->dst.offset' on the floor. Nothing in the
code above seems to guarantee that it's zero and in that case the
offset of the register being coalesced into wouldn't be taken into
account while rewriting the generating instruction.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This makes sure that overlap checks are done correctly throughout the
back-end when the '*this' register starts before the register/size
pair provided as argument, and is actually less annoying to use than
in_range() at this point since regions_overlap() takes its size
arguments in bytes.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This is copy-pasted almost line by line from the FS back-end. The
only reason it cannot be implemented in terms of backend_reg is that
the backend_reg::nr field doesn't have the same meaning for uniforms
on both back-ends. It could be easily deduplicated by using a
template function.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Dave Airlie
Kenneth Graunke
Ilia Mirkin
Jason Ekstrand
Brian Paul
Jon Turney
Emil Velikov
Jason Ekstrand
Marek Olšák
Francisco Jerez