Now that we have a helper in the builder for system values and a helper in
core NIR to get the intrinsic opcode, there's really no point in having
things split out into a helper function. This commit "modernizes" this
pass to use helpers better and look more like newer passes.
The function calculates the offset to a subimage within the surface, in
units of surface samples.
All unit tests pass with `make check`. (Admittedly, though, there are
too few unit tests).
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 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 is what image_view does. Also, we really need to do this so that we
can properly handle the combined offsets from the buffer and from
pCreateInfo.
This fixes some of the nonzero offset buffer view CTS tests.
When building RENDER_SURFACE_STATE, the driver set
SurfaceType = anv_image::surface_type, which was calculated during
anv_image_init(). This was bad because the value of
anv_image::surface_type was taken from a gen-specific header,
gen8_pack.h, even though the anv_image structure is used for all gens.
Replace anv_image::surface_type with a gen-specific lookup function,
anv_surftype(), defined in gen${x}_state.c.
The lookup function contains some useful asserts that caught some nasty
bugs in anv meta, which were fixed in the previous commit.
Meta unconditionally used VK_IMAGE_VIEW_TYPE_2D in the functions below.
This caused some out-of-bound memory accesses.
anv_CmdCopyImage
anv_CmdBlitImage
anv_CmdCopyBufferToImage
anv_CmdClearColorImage
Fix it by adding a new function, anv_meta_get_view_type().
Regarding the subimages within a surface, sometimes isl called them
"images" and sometimes "LODs". This patch make isl consistently refer to
them as "images". I choose the term "image" over "LOD" because LOD is
an misnomer when applied to 3D surfaces. The alignment applies to each
individual 2D subimage, not to the LOD as a whole.
This patch changes no behavior. It's just a manually performed,
case-insensitive, replacement s/lod/image/ that maintains correct
indentation. any behavior.
Our hardware requires an LOD for all texelFetch commands even if they are
on buffer textures. GLSL IR gives us an LOD of 0 in that case, but the LOD
is really rather meaningless. This commit allows other NIR producers to be
more lazy and not provide one at all.
The offset for loads is in src[0]. This was a copy+paste error in the
nir_intrinsic_load/store refactoring. This commit fixes a segfault in
ES31-CTS.compute_shader.work-group-size. I have no idea how piglit failed
to catch this...
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93348
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Based on code by Chris Forbes and Fabian Bieler.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This is brw_gs_surface_state.c copy and pasted twice with search and
replace.
brw_binding_table.c code is similarly copy and pasted.
v2: Drop dword_pitch related fields.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Jason Ekstrand <jason.ekstrand@intel.com>
Tessellation evaluation shaders work almost identically to vertex
shaders - we have a set of URB writes at the end of the program, and the
last one should terminate it.
Geometry shaders really are the special case, where multiple
EmitVertex() calls trigger URB writes in the middle of the program.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Tessellation evaluation shaders will use g4 instead. For now, make an
fs_reg called urb_handle and use that in place of hardcoding g1.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
I want to use this directly from brw_vec4_generator.cpp.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
This is a helper function for setting up the local invocation ID
payload according to the cs_prog_data generated by the compiler. It's
intended to be available to users of libi965_compiler so move it there.
GL likes to saturate your incoming color, but if that color's coming from
unpacking from unorms, there's no point. Ideally we'd have a range
propagation pass that cleans these up in NIR, but that doesn't seem to be
going to land soon. It seems like we could do a one-off optimization in
nir_opt_algebraic, except that doesn't want to operate on expressions
involving unpack_unorm_4x8, since it's sized.
total instructions in shared programs: 87879 -> 87761 (-0.13%)
instructions in affected programs: 6044 -> 5926 (-1.95%)
total estimated cycles in shared programs: 349457 -> 349252 (-0.06%)
estimated cycles in affected programs: 6172 -> 5967 (-3.32%)
No SSPD on openarena (which had the biggest gains, in its VS/CSes), n=15.
The caller isn't going to expect it from a return, so it would probably
get misinterpreted. If the caller had an unpack in its reg, that's fine,
but don't lose track of it.
I apparently broke this in a late refactor, in such a way that I decided
its tests were some of those interminable ones that I should just
blacklist from my testing. As a result, the refactors related to it were
totally wrong.
Mostly related to making sure the rasterizer can correctly
pick out the correct scissor box for the current viewport.
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Jason Ekstrand
Jason Ekstrand
Chad Versace
Jordan Justen
Kenneth Graunke
Kristian Høgsberg Kristensen
Kristian Høgsberg Kristensen
Eric Anholt
Edward O'Callaghan