svga: tweak pre-VGPU10 rasterization offsets

It seems there's no perfect x/y biases for line drawing to satisfy all
applications.  Depending on the biases, either real apps produce results
similar to VGPU10 while Piglit's gl-1.0-ortho-pos fails, or vice versa.

Let's lean toward real applications (Solidworks, SolidEdge, Google Earth)
over Piglit.

Using (-0.5, -0.5) for points, lines and triangles, seems to generally
work well.

We don't seem to have these issues with VGPU10.

Tested with Piglit and CAD-oriented apitraces.  See VMware bugs 1775498
and 1905053.

Reviewed-by: José Fonseca <jfonseca@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>

svga: if we get nr_samples==1, store nr_samples=0

We need to be more careful not to treat nr_samples=1 as an msaa surface.
This patch prevents us from errantly declaring an MSAA shader resource
with 1 sample.

No Piglit regressions, fixes the above-described errors.

Reviewed-by: Neha Bhende <bhenden@vmware.com>

svga: emit sampler constants only if sampler view exists

It is possible to have holes in the shader emitter's sampler_target array.
0 sampler_target does not necessarily mean there is no sampler view
specified since texture buffer target has the value 0.
With this patch, a sampler_view array is added to the shader emitter structure
to specify if there is a sampler view for each texture unit. Only if there
is a sampler view, we will emit constant for texcoord scale factor or texture
buffer size for that sampler view.

Fixes a rendering issue with Turbine after commit 1020e960440.

Reviewed-by: Brian Paul <brianp@vmware.com>

svga: fix incorrect case in svga_typeless_format()

For the case of SVGA3D_X32_G8X24_UINT we incorrectly returned
SVGA3D_R32_FLOAT_X8X24.  We should return SVGA3D_R32G8X24_TYPELESS.

Note that we never actually use SVGA3D_X32_G8X24_UINT so this has
no impact.

No Piglit regressions.

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

svga: add typeless switch cases in svga_typeless_format()

We sometimes pass typeless formats to this function.  By adding switch
cases we avoid the "Unexpected format XXX in svga_typeless_format"
warning messages.  No functional change.

No Piglit regressions, no above-mentioned warning messages.

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

svga: Allow sRGB format with PIPE_BIND_DISPLAY_TARGET binding flag on vgpu10.

This patch allows to use sRGB formats for DISPLAY_TARGET on vgpu10.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>

etnaviv: Set up unknown GC3000 states

Set up new states that the blob started setting for GC3000 consistently.

This makes sure that when another test or driver leaves the GPU in
unpredictable state, these states are set up correctly for our
rendering.

Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: Fix point sprite rendering on GC3000

Setting PA_VIEWPORT_UNK state correctly is necessary to make point sprite
rendering on GC3000 work.

Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: Add support for DP2 instruction

A two-component dot product instruction is supported with HALTI2, use it
on hardware that supports it.

Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: Support opcodes with bit 6 set in assembler

Support opcodes with bit 6 set in assembler, and assert that only ops
0x00..0x7f are used.

Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

travis: add meson build for vulkan drivers.

v2: - use -isystem`pwd` instead of cp to include fake linux header
      (Eric E., Emil)

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

meson: convert gtest to an internal dependency

In truth gtest is an external dependency that upstream expects you to
"vendor" into your own tree. As such, it makes sense to treat it more
like a dependency than an internal library, and collect it's
requirements together in a dependency object.

v2: - include with -isystem instead of setting compiler args (Eric)

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

meson: set C++ standard to C++11

RadeonSI requires C++11, clover requires C++11, LLVM requires it, so
llvmpipe may require it, and that covers most of the C++ code in mesa.

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

meson: add window system deps to intel vulkan common

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

meson: look for libelf as a library if there is no pkgconfig

Required for older versions of libelf that don't have a pkgconfig file.

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

egl/surfaceless: Use KMS swrast fallback

The kms_swrast extension is an actively developed software fallback,
and platform_surfaceless can use it if there are no available
hardware drivers.

v2: Split into 2 patches, use booleans, check LIBGL_ALWAYS_SOFTWARE,
    and modify the eglLog level (Emil, Eric, Tomasz).

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

egl/surfaceless: add probe device helper function

This will help us initialize a software driver, if it's needed
or requested.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

gallium/u_tests: fix ifdef for sync_file fences

include libsync.h only when libdrm is compiled in

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

util: include stdlib.h in u_string.h to silence MinGW warning

Otherwise we don't get a prototype for malloc().

Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

intel: Always set Cube Face Enables for all surfaces.

These shouldn't matter for non-cubes, and we always enable them all
for cubes, so we may as well set them all the time.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

intel: Make Cube Face Enable fields consistent across generations.

I decided to use the one-boolean-per-cube-face approach because it's
clearer which bits correspond to which cube face.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

docs: Document that libtxc_dxtn is now no longer needed

docs: GL_ARB_indirect_parameters is now supported on i965/gen7+

travis: Remove libtxc_dxtn from the build

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

build: Remove HAVE_DLOPEN

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Delete now unused dlopen.h

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Remove force_s3tc_enable driconf variable

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

gallium: Remove util_format_s3tc_init()

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

gallium: Remove util_format_s3tc_enabled

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa/st: Drop has_lib_dxtc argument from st_init_extensions()

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Drop Mesa_DXTn from gl_context

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Drop function pointer checks in s3tc code

Now never null!

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Call DXTn functions directly

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Remove fprintf referring to libdxtn

When this file is included by Gallium, the fprintf causes it to fail to
compile. This is an unreachable error case, and we shouldn't be calling
fprintf directly.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Remove prototypes and mark S3TC functions static

This file will be #included, so the functions should be static.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Remove commented-out DXTn fetch code

Has been disabled for 12 years.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Combine libtxc_dxtn sources into texcompress_s3tc_tmp.h

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

mesa: Import libtxc_dxtn sources

Imported from master (commit ef07298391c6dcad843e0b13e985090c1dd76e76)
of https://cgit.freedesktop.org/~mareko/libtxc_dxtn/

Acked-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>

anv: Remove unreachable cases from isl_format_for_size()

The dstOffset and fillSize parameters must be multiple of 4.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: "17.1 17.2" <mesa-stable@lists.freedesktop.org>

anv: Fix vkCmdFillBuffer()

The vkCmdFillBuffer() command fills a buffer with an uint32_t value.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: "17.1 17.2" <mesa-stable@lists.freedesktop.org>

st/mesa: don't use pipe_surface for passing information about EGLImage

Use st_egl_image instead. radeonsi doesn't like when we create
a pipe_surface with PIPE_FORMAT_NV12.

This fixes NV12 texturing on radeonsi using kmscube.

Cc: 17.1 17.2 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

gallium/u_tests: test sync_file fences

This should be sufficient for testing all kernel/libdrm/radeonsi codepaths
that are used by radeonsi.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

i965: Implement ARB_indirect_parameters.

We can implement ARB_indirect_parameters for i965 by
taking advantage of the conditional rendering mechanism.
This works by issuing maxdrawcount draw calls and using
conditional rendering to predicate each of them with
"drawcount > gl_DrawID"

Signed-off-by: Plamena Manolova <plamena.manolova@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Refactor brw_try_draw_prims.

In order to add our ARB_indirect_parameters implementation we
need to refactor brw_try_draw_prims so that it operates on a
per primitive basis and move the loop into brw_draw_prims.
This commit refactors the brw_try_draw_prims function and
renames it to brw_draw_single_prim.

Signed-off-by: Plamena Manolova <plamena.manolova@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Indroduce brw_finish_drawing.

In order to add our ARB_indirect_parameters implementation we
need to refactor brw_try_draw_prims so that it operates on a
per primitive basis and move the loop into brw_draw_prims.
This commit introduces the brw_finish_drawing function where
we move the code that executes once after the loop.

Signed-off-by: Plamena Manolova <plamena.manolova@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Introduce brw_prepare_drawing.

In order to add our ARB_indirect_parameters implementation we
need to refactor brw_try_draw_prims so that it operates on a
per primitive basis and move the loop into brw_draw_prims.
This commit introduces the brw_prepare_drawing function where
we move the code that executes once before the loop.

Signed-off-by: Plamena Manolova <plamena.manolova@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Remove spurious assertions

It's inside an if-statement that already checks that the variables are
not NULL.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: Move 'foo = foo;' optimization to opt_dead_code_local

The optimization as done in opt_copy_propagation would have to be
removed in the next patch.  If we just eliminate that optimization
altogether, shader-db results, even on platforms that use NIR, are hurt
quite substantially.  I have not investigated why NIR isn't picking up
the slack here.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>

glsl/ast: Use logical-or instead of conditional assignment to set fallthru_var

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl/ast: Generate a more compact expression to disable execution of default case

Instead of generating a sequence like:

    run_default = true;
    if (i == 3) // some label that appears after default
        run_default = false;
    if (i == 4) // some label that appears after default
        run_default = false;
    ...
    if (run_default) {
        ...
    }

generate something like:

    run_default = !((i == 3) || (i == 4) || ...);
    if (run_default) {
        ...
    }

This eliminates one use of conditional assignment, and it enables the
elimination of another.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl/ast: Explicitly track the set of case labels that occur after default

Previously the instruction stream was walked looking for comparisons
with case-label values.  This should generate nearly identical code.
For at least fs-default-notlast-fallthrough.shader_test, the code is
identical.

This change will make later changes possible.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl/ast: Convert ast_case_label::hir to ir_builder

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl/ast: Use ir_binop_equal instead of ir_binop_all_equal

The values being compared are scalars, so these are the same.  While
I'm here, simplify the run_default condition to just deref the flag
(instead of comparing a scalar bool with true).

There is a bit of extra change in this patch.  When constructing an
ir_binop_equal ir_expression, there is an assertion that the types are
the same.  There is no such assertion for ir_binop_all_equal, so
passing glsl_type::uint_type with glsl_type::int_type was previously
fine.  A bunch of the code motion is to deal with that.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl/ast: Stop processing a switch-statement after an error in the init-expression

This happens to work now because ir_binop_all_equal is used.  This
causes vector typed init-expressions to produce scalar Boolean values
after comparison.

The next commit changes ir_binop_all_equal to ir_binop_equal.  Vector
typed init-expressions will then produce vector Boolean values, and, in
debug builds, the ir_assignment constructor will fail an assertion.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: Don't pass NULL to ir_assignment constructor when not necessary

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: Convert lower_variable_index_to_cond_assign to ir_builder

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

glsl: Fix coding standards issues in lower_variable_index_to_cond_assign

Mostly tabs-before-spaces, but there was some other trivium too.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>

glsl: Convert lower_vec_index_to_cond_assign to using ir_builder

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>

glsl: Return ir_variable from compare_index_block

This is basically a wash now, but it simplifies later patches that
convert to using ir_builder.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>

glsl: Fix coding standards issues in lower_vec_index_to_cond_assign

Mostly tabs-before-spaces, but there was some other trivium too.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>

glsl: Fix coding standards issues in lower_if_to_cond_assign

Mostly tabs-before-spaces issues.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>

nir/spirv: Allow loop breaks in a switch body.

Per the SPIR-V spec 2.11 Structured Control Flow:

"The only blocks in a construct that can branch outside the construct are

...
- a break block for the innermost loop it is inside of.
..."

With

"Break block: A block containing a branch to the Merge Block of a loop header's merge instruction."

Note that it puts no restriction on not being in an if or switch within the innermost loop.

This passes the loop_break block to the switch body so it can properly detect loop breaks.

CC: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

freedreno/a5xx: fix missing restore state

RB_CLEAR_CNTL seems to be in a funny state after boot (at least on
8x96/a530).

Cc: 17.2 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

radv: make radv_dynamic_state_copy() static

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

meson: change vulkan icd config to - instead of _

Just to be consistent.

v2: - update meson.build too
v3: - remove unrelated whitespace change

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

meson: check for python2 mako

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

docs: update calendar, add news item and link release notes for 17.2.2

Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>

docs: add sha256 checksums for 17.2.2

Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
(cherry picked from commit 5a71ed6fa5b78f04b29e972e0759fa15cf0247b2)

docs: add release notes for 17.2.2

Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
(cherry picked from commit bc12538a8e79113b733381ffdc0f6c89d59d0a50)

wayland-egl: rework and simplify wl_egl_window initialization

Use calloc instead of malloc + explicitly zeroing the different fields.
We need special handling for the version field which is of type
const intptr_t.

As we're here document why keeping the constness is a good idea.

The wl_egl_window_resize() call is replaced with an explicit set of the
width/height.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Miguel A. Vico <mvicomoya@nvidia.com>

wayland-egl: move WL_EGL_EXPORT declaration to where it's used

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Miguel A. Vico <mvicomoya@nvidia.com>

wayland-egl: use C99 comments

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Miguel A. Vico <mvicomoya@nvidia.com>

wayland-egl: remove no longer needed wayland-client dependency

Was required for wl_surface, which is opaque and forward declared with
earlier patch.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Miguel A. Vico <mvicomoya@nvidia.com>

wayland-egl: add stdint.h include for intptr_t

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Miguel A. Vico <mvicomoya@nvidia.com>

wayland-egl: forward declare struct wl_surface

It makes the header self-contained and with later commit we'll remove
the unnecessary wayland-client.h include.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Miguel A. Vico <mvicomoya@nvidia.com>

wayland-egl: rename wayland-egl-{priv,backend}.h

In preparation to lifting the whole thing out as a separate library.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Miguel A. Vico <mvicomoya@nvidia.com>

egl/dri: link directly to libglapi.so

Shared glapi (libglapi.so) has been a requirement for years, in order
to build EGL.

Remove the no longer necessary dlopen/dlsym dance and link to the
library directly.

This allows us to remove a handful of platform specific workarounds, due
to the different name of the library.

v2:
 - Android: export the include dir (RobH)
 - Drop unused local variable (Eric)

Cc: Jonathan Gray <jsg@jsg.id.au>
Cc: Jon Turney <jon.turney@dronecode.org.uk>
Cc: Julien Isorce <julien.isorce@gmail.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v1)
Tested-by: Tomasz Figa <tfiga@chromium.org> (v1)
Tested-by: Rob Herring <robh@kernel.org>

swr/rast: do not crash on NULL strings returned by getenv

The current convenience function GetEnv feeds the results of getenv
directly into std::string(). That is a bad idea, since the variable
may be unset, thus we feed NULL into the C++ construct.

The latter of which is not allowed and leads to a crash.

v2: Better variable name, implicit char* -> std::string conversion (Eric)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101832
Fixes: a25093de718 ("swr/rast: Implement JIT shader caching to disk")
Cc: Tim Rowley <timothy.o.rowley@intel.com>
Cc: Laurent Carlier <lordheavym@gmail.com>
Cc: Bernhard Rosenkraenzer <bero@lindev.ch>
[Emil Velikov: make an actual commit from the misc diff]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> (v1)
Reviewed-by: Laurent Carlier <lordheavym@gmail.com> (v1)

freedreno/a5xx: align height to GMEM

Similar to the way width/pitch alignment works, it seems like we need to
do similar for height.  Otherwise the BLIT from system memory to GMEM
can over-fetch beyond the end of the buffer, triggering a fault.

I'm not sure if there is a better solution yet.  Possibly we could fall
back to pre-a5xx style DRAW packets for cases where BLIT might over-
fetch.  (We in theory have that problem already with rendering to higher
mipmap levels, although fortunately those tend to use GMEM bypass.)

This fixes issues reported with glamor.

Reported-by: don.harbin@linaro.org
Cc: 17.2 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

radeonsi: adjust clip discard based on line width / point size

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: remove si_context::{scissor_enabled,clip_halfz}

They are just copies of the rasterizer state.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: simplify the signature of si_update_vs_writes_viewport_index

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: move current_rast_prim into si_context

v2: rebase fixes

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: move and rename scissor and viewport state and functions

v2: change GET_MAX_SCISSOR to SI_MAX_SCISSOR

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: remove si_apply_scissor_bug_workaround

It only affects pre-SI chips.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: move r600_viewport.c to si_viewport.c

This is purely a file-move + #include fixup + build system changes.
Other cleanups will follow in subsequent commits.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: fix maximum advertised point size / line width

The hardware registers store the half-size/width in 12.4 fixed point
format, so 8192 is the maximum.

Fixes dEQP-GLES3.functional.rasterization.*

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: deduce rast_prim correctly for tessellation point mode

Together with the previous patches, this fixes
dEQP-GLES31.functional.primitive_bounding_box.wide_points.*

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: don't discard points and lines

This is a bit conservative, but a more precise solution requires access
to the rasterizer state. This is something to tackle after the fork between
r600 and radeonsi.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: move current_rast_prim to r600_common_context

We'll use it in the scissors / clip / guardband state.

v2: avoid a performance regression on r600 when applied to
    (pre-fork) stable branches

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

st/mesa: use R10G10B10X2 format where applicable

This is the last step of fixing
dEQP-GLES3.functional.fbo.completeness.renderable.texture.color0.rgb_unsigned_int_2_10_10_10_rev
for radeonsi.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

gallium: add PIPE_FORMAT_R10G10B10X2_UNORM

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa/main: R10G10B10_(A2) formats are not color renderable in ES

The EXT_texture_type_2_10_10_10_REV (ES only) states the following issue:

   "1. Should textures specified with this type be renderable?

    UNRESOLVED: No.  A separate extension could provide this functionality."

This partially fixes
dEQP-GLES3.functional.fbo.completeness.renderable.texture.color0.{rgb,rgba}_unsigned_int_2_10_10_10_rev

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa/main: select the R10G10B10X2_UNORM internal format based on data type

ES requires it. This is a partial fix for
dEQP-GLES3.functional.fbo.completeness.renderable.texture.color0.rgb_unsigned_int_2_10_10_10_rev

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

glsl: do not set the 'smooth' qualifier by default on ES shaders

It leads to surprising states with integer inputs and outputs on
vertex processing stages (e.g. geometry stages). Instead, rely on the
driver to choose smooth interpolation by default.

We still allow varyings to match when one stage declares it as smooth
and the other declares it without interpolation qualifiers.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>

freedreno: fix PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE

Fixes an assert in fd_acc_query_register_provider() about query provider
not already registered.

Fixes: 3f6b3d9d ("gallium: add PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE")
Signed-off-by: Rob Clark <robdclark@gmail.com>

egl/wayland: simplify LIBGL_ALWAYS_SOFTWARE logic

Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

radeonsi: fix a regression in integer cube map handling

A recent commit fixed the case of 8888 integer cube maps, which need the
workaround of replacing the data format with USCALED/SSCALED. However,
this broke the case of non-8888 integer cube maps; those still need the
fix of shifting the texture coordinates.

Fixes KHR-GL45.texture_gather.plain-gather-int-cube-array and similar.

Fixes: 6fb0c1013b35 ("radeonsi: workaround for gather4 on integer cube maps")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

amd/common: move ac_build_phi from radeonsi

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radv: remove unused radv_meta_state::btoi::render_pass handle

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>