i965/miptree: Prepare aux state map for isl based

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Represent y-tiled stencil copies with isl

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Represent w-tiled stencil surfaces with isl

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Prepare compressed offsets for isl based

v2 (Jason): Simply switch to isl_surf_get_image_offset_el()

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Add support for imported bo offsets for isl based

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/fbo: Add support for isl-based miptrees in rb wrapper

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Prepare image setup from miptree for isl based

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Prepare tex, img and rt state emission for isl based miptrees

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Refactor miptree to isl converter and adjustment

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Prepare tex (sub)image for isl based

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/wm: Prepare image surfaces for isl based

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/wm: Fix number of layers in 3D images

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Prepare intel_miptree_copy() for isl based

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Prepare blit engine for isl based miptrees

v2: Do not concern cpp, pitch and tiling which are already
    transitioned.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Store chars-per-pixel even for isl based

This will significantly reduce chrun when switching remaaining
surface types to isl. After the full transition it will be easier
to calculate on-demand and drop the helper member in miptree.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Switch to isl_surf::row_pitch

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Take interleaving into account in stencil pitch

This makes intel_mipmap_tree::pitch and isl_surf::row_pitch
semantically equivalent.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Switch to isl_surf::tiling

v2 (Daniel): Use isl tiling converters instead of introducing local.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

intel/isl: Add i915 to isl_tiling converter

v2: s/i915_tiling_to_isl_tiling(/isl_tiling_from_i915_tiling/

Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Use isl_tiling_to_i915_tiling()

and drop local copy.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Switch to isl_surf::samples

v2 (Jason):
   - Don't trigger miptree re-creation in vain later on with ISL
     based. Core GL uses zero to indicate single sampled while
     ISL uses one - this would cause intel_miptree_match_image()
     to always fail.
   - Now that native miptree is already using sample number of
     one, there is no need for MAX2() when converting to ISL.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Use num_samples of 1 instead of 0 for single-sampled

Patch moves "assert(brw->num_samples <= 16)" from
emit_3dstate_multisample2() to upload_multisample_state(). Latter
is the only caller of the former and passes "brw->num_samples"
as argument. Therefore it is clearer to assert in the caller.

Possible bug fix in genX(emit_3dstate_multisample2) which
doesn't have a case for num_samples == 0 in the switch
statement.

It should be noted that intel_miptree_map()/unmap() now checks
additionally for "mt->surf.samples == 1" in order to support gen6
stencil which is already transitioned to ISL. This will go away in
next patch when native miptrees start to use isl_surf::samples as
well.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Switch to isl_surf::msaa_layout

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

radv: Add support for VK_KHR_variable_pointers.

Just a trivial enable.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Acked-by: Dave Airlie <airlied@redhat.com>

radv: Add VK_KHR_storage_buffer_storage_class support.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Acked-by: Dave Airlie <airlied@redhat.com>

mesa: check API profile for GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION

If we have a compat profile context, it means that GL_QUADS[_STRIP] are
supported so this query makes sense.  It's also legal for 3.2 core profile
because of a spec bug.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

radv: port to new libdrm API.

This bumps the libdrm requirement for amdgpu to the 2.4.82.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radv: introduce some wrapper in cs code to make porting off libdrm_amdgpu easier.

This just introduces a central semaphore info struct, and passes it around,
and introduces some wrappers that will make porting off libdrm_amdgpu easier.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

configure/swr: add KNL and SKX architecture targets

Not built by default.  Currently only builds with icc.

v2:
 * document knl,skx possibilities for swr_archs
 * merge with changed loader lib selection code

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

configure/swr: configurable swr architectures

Allow configuration of the SWR architecture depend libraries
we build for with --with-swr-archs.  Maintains current behavior
by defaulting to avx,avx2.

Scons changes made to make it still build and work, but
without the changes for configuring which architectures.

v2:
 * add missing comma for swr_archs default
 * check that at least one architecture is enabled
 * modify loader logic to make it clearer how to add archs

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

gallium/util: fix nondeterministic avx512 detection

cpuid.7 requires cx=0 to select the extended feature leaf.

avx512 detection was using the non-indexed cpuid resulting
in random non-detection of avx512.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

drirc: whitelist War Thunder (Wine) for glthread

Nominated by František Zatloukal <zatloukal.frantisek@gmail.com>

travis: add missing wayland-protocols

> checking for WAYLAND... no
>
> configure: error: Package requirements (wayland-client >= 1.11 wayland-server >= 1.11 wayland-protocols >= 1.8) were not met:
>
> No package 'wayland-protocols' found
>
> Consider adjusting the PKG_CONFIG_PATH environment variable if you
> installed software in a non-standard prefix.
>
> Alternatively, you may set the environment variables WAYLAND_CFLAGS
> and WAYLAND_LIBS to avoid the need to call pkg-config.
> See the pkg-config man page for more details.

Also, added extra path to PKG_CONFIG_PATH env variable.

Fixes: 02cc359372 ("egl/wayland: Use linux-dmabuf interface for buffers")
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

anv/image: Fix VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT

We incorrectly detected VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT.  We looked
for the bit in VkImageCreateInfo::usage, but it's actually in
VkImageCreateInfo::flags.

Found by assertion failures while enabling VK_ANDROID_native_buffer.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

docs: update master's release notes, news and calendar commit

This reflects closer what we are actually doing.

Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

docs: avoid overwrite of LD_LIBRARY_PATH during basic testing

The LD_LIBRARY_PATH environment variable could be already defined so
we extend it and restore it rather than just overwriting it.

v2:
 - Unset the __old_ld helper variable when we are done with it.
 - Corrected test for and escaping of variables (Eric).

v3: Remove unneeded variable (Emil).

Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

docs: add instructions to specify LLVM version for basic testing

The "Perform basic testing" and "Use the release.sh script from xorg
util-modular" sections provide some instructions to do so. We add now
some comments in order to use a recent enough LLVM version to run
dist/distcheck and the automake generated binaries.

v2: Suggested the need to define LLVM_CONFIG also before running the
    release.sh script.

Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl: fix line continuation

Trailing space after the backslash meant the rest of the AM_CFLAGS lines
were no longer included.
This has been silently ignored because of the next line starting with
a `-` dash, instructing make to be silent about that line.

Fixes: 02cc359372773800de81 "egl/wayland: Use linux-dmabuf interface for buffers"
Cc: Daniel Stone <daniels@collabora.com>
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

gbm: fix typo

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

configure.ac: fix whitespace

Whitespace-only change (`diff -w` is empty).

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

etnaviv: advertise supported dmabuf modifiers

Simply advertise all supported modifiers, independent of the format.
Special formats, like compressed, which don't support all those modifiers
are already culled from the dmabuf format list, as we don't support
the render target binding for them.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

etnaviv: implement resource creation with modifier

This allows to create buffers with a specific tiling layout, which is primarily
used by GBM to allocate the EGL back buffers with the correct tiling/modifier
for use with the scanout engines.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

etnaviv: fill in modifier in etna_resource_get_handle

This allows the state trackers to know the tiling layout of the
resource and pass this through the various userspace protocols.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

etnaviv: fold etna_screen_bo_get_handle into etna_resource_get_handle

There is no point in keeping this indirection. Makes the code easier to
follow.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com> (v1)
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

etnaviv: implement resource import with modifier

This implements resource import with modifier, deriving the correct
internal layout from the modifier and constructing a render compatible
base resource if needed.

This removes the special cases for DDX and renderonly scanout allocated
buffers, as the linear modifier is enough to trigger correct handling
of those buffers.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>

etnaviv: also update textures from external resources

This reworks the logic in etna_update_sampler_source to select the
newest resource view for updating the texture view. This should make
the logic easier to follow and fixes texture updates from imported
dma-bufs.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: increment correct seqno for external resources

If we import a dma-buf with a sampler/pixel pipe incompatible modifier,
the imported buffer will end up in an external resource view. As
resource_changed signals the change of the imported resource, we need
to update the external view seqno, instead of the base resource seqno.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: pad scanout buffer size to RS alignment

This fixes failures to import the scanout buffer with screen resolutions
that don't satisfy the RS alignment restrictions, like 1680x1050.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>

etnaviv: add helper to work out RS alignment

The minimum RS alignment calculation is needed in various places.
Extract a helper to avoid open-coding the calcuation at every site.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

renderonly/etnaviv: stop importing resource from renderonly

The current way of importing the resource from renderonly after allocation
is opaque and is taking away control from the driver, which it needs in
order to implement more advanced scenarios than the simple linear scanout
with matching stride alignments.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>

configure.ac: bump required etnaviv libdrm version to 2.4.82

The following changes need the modifier definitions for the Vivante tiled
formats, which are shipped with libdrm 2.4.82.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

dri/common: use designated initializers for OptConfElems

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

gallium: auxiliary: Fix standalone Android build of u_cpu_detect (v2)

Commit 463b7d0332c5("gallium: Enable ARM NEON CPU detection.")
introduced CPU feature detection based Android cpufeatures library.
Unfortunately it also added an assumption that if PIPE_OS_ANDROID is
defined, the library is also available, which is not true for the
standalone build without using Android build system.

Fix it by defining HAS_ANDROID_CPUFEATURES in Android.mk and replacing
respective #ifdefs to use it instead.

v2:
 - Add a comment explaining why the separate flag is needed (Emil).

Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl: propagate EGL_BAD_ATTRIBUTE during EGLImage attr parsing

Earlier commit refactored/split the parsing into separate hunks.
While no functional change was intended, it did not attribute that
different error is set when the attrib. value is incorrect.

Fixes: 3ee2be4113d ("egl: split _eglParseImageAttribList into per
extension functions")
Cc: Michel Dänzer <michel@daenzer.net>
Reported-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

swr: remove unneeded fallback strcasecmp define

The last user of the function was removed with earlier commit.

Fixes: 50842e8a931 ("swr: replace gallium->swr format enum conversion")
Cc: Tim Rowley <timothy.o.rowley@intel.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tim Rowley <timothy.o.rowley@intel.com>

st/dri: list __DRI2_FENCE extension only where needed

The extension should be present (if applicable) in the list returned by
getExtensions(). AFAICT no loader has ever looked for it in
__driDriverExtensions/__driDriverGetExtensions.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

swrast: add dri2ConfigQueryExtension to the correct extension list

The extension should be in the list as returned by getExtensions().
Seems to have gone unnoticed since close to nobody wants to change the
vblank mode for the software driver.

v2: Rebase

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)

radeon: remove local vblank_mode option

Analogous to previous commits.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

i915: remove local vblank_mode option

Analogous to previous commit.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

i965: remove local vblank_mode option

The option is only queried from the loader, which has access to the
dri common code in src/mesa/drivers/dri/common/.

One could grant the loader access to brw_config_options but even
then, having the same option in both places is not a good idea.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

egl/dri2: remove unused buffer_count variable

It removes unused buffer_count variable from dri2_egl_surface.
And it polishes the assert of dri2_drm_get_buffers_with_format().

Signed-off-by: Mun Gwan-gyeong <elongbug@gmail.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl/drm: Format code in platform_drm.c according to style guide.

This is a tiny housekeeping patch which does the following:
  * Limit lines to 78 or fewer characters.
According to the mesa coding style guidelines.

Signed-off-by: Mun Gwan-gyeong <elongbug@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl/drm: add going out of the loop when the designated buffer is found

Because the color_buffers have a each unique bo, if the designated buffer is
found, release_buffer() can go out the loop which seaches the buffer.

Signed-off-by: Mun Gwan-gyeong <elongbug@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

gbm: fix typo in doxygen comment

This fixes the misspelling of gbm_bo_import api param.

Signed-off-by: Mun Gwan-gyeong <elongbug@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl: Add MKDIR_GEN definition

Adding linux-dmabuf Wayland protocol files as generated did the right
thing, by prepending $(MKDIR_GEN) so autotools didn't try to write into
a build directory which didn't yet exist.

Unfortunately MKDIR_GEN needs to be defined in every Makefile it's used
in (which we do now), or alternately defined and substituted in
configure.ac (which we don't do), and src/egl/ didn't actually have it
from either method. As unset variables expand to nothing, it was
silently being skipped.

Copy & paste the defintion to make sure drivers/dri2/ exists before we
try to generate files into it.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reported-by: Nick Sarnie <commendsarnex@gmail.com>
Reported-by: Mike Lothian <mike@fireburn.co.uk>
Fixes: 02cc35937277 ("egl/wayland: Use linux-dmabuf interface for buffers")

util: Make CLAMP turn NaN into MIN.

The previous implementation of CLAMP() allowed NaN to pass through
unscathed, by failing both comparisons.  NaN isn't exactly a value
between MIN and MAX, which can break the assumptions of many callers.

This patch changes CLAMP to convert NaN to MIN, arbitrarily.  Callers
that need NaN to be handled in a specific manner should probably open
code something, or use a macro specifically designed to do that.

Section 2.3.4.1 of the OpenGL 4.5 spec says:

   "Any representable floating-point value is legal as input to a GL
    command that requires floating-point data. The result of providing a
    value that is not a floating-point number to such a command is
    unspecified, but must not lead to GL interruption or termination.
    In IEEE arithmetic, for example, providing a negative zero or a
    denormalized number to a GL command yields predictable results,
    while providing a NaN or an infinity yields unspecified results."

While CLAMP may apply to more than just GL inputs, it seems reasonable
to follow those rules, and allow MIN as an "unspecified result".

This prevents assertion failures in i965 when running the games
"XCOM: Enemy Unknown" and "XCOM: Enemy Within", which call

   glTexEnv(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT,
            -nan(0x7ffff3));

presumably unintentionally.  i965 clamps the LOD bias to be in range,
and asserts that it's in the proper range when converting to fixed
point.  NaN is not, so it crashed.  We'd like to at least avoid that.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

nir: Use nir_src_copy instead of direct assignments.

If the source is an indirect register, there is ralloc'd data.  Copying
with a direct assignment will copy the pointer, but the data will still
belong to the old instruction's memory context.  Since we're lowering
and throwing away instructions, that could free the data by mistake.

Instead, use nir_src_copy, which properly handles this.

This is admittedly not a common case, so I think the bug is real,
but unlikely to be hit.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Matt Turner <mattst88@gmail.com>

glsl: disable array splitting for AoA

While it produces functioning code the pass creates worse code
for arrays of arrays. See the comment added in this patch for more
detail.

V2: skip splitting of AoA of matrices too.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

nir: fix nir_opt_copy_prop_vars() for arrays of arrays

Previously we only incremented the guide for a single
dimension/wildcard.

V2: rework logic to avoid code duplication

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

nir/vars_to_ssa: Handle missing struct members in foreach_deref_node

This can happen if, for instance, you have an array of structs and there
are both direct and wildcard references to the same struct and some
members only have direct or only have indirect.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Cc: mesa-stable@lists.freedesktop.org

i965/blorp: Use the return value of brw_emit_reloc.

This guarantees that the value written in the batch matches the
value recorded in the relocation entry.

(Chris Wilson wrote an identical patch as well.)

i965: Delete dead brw_program_reloc function.

Rafael eliminated the last use of brw_program_reloc recently.

i965: Convert WM_STATE to genxml on gen4-5.

The code doesn't get exactly a lot simpler but at least it is in a single
place, and we delete more than we add.

Another good point is that you get rid of struct brw_wm_unit_state
which was a third mechanism for encoding GEN state. We used to have
GENXML, manual packing and these bitfield structs. Now we're down to
just GENXML and some manual packing. (Khristian)

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Convert CLIP_STATE to genxml.

Add the code into its own function and atom, since almost nothing is
shared with GEN >= 6.

v2: Split GEN <=5 and GEN >= 6 into separate functions (Ken).
v3: Minor tidying by Ken.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

egl/wayland: Use linux-dmabuf interface for buffers

When available, use the zwp_linux_dambuf_v1 interface to create buffers,
which allows multiple planes and buffer modifiers to be used.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl/wayland: Remove duplicate wl_buffer creation code

Now create_wl_buffer is generic enough, we can use it for the
EGL_WL_create_wayland_buffer_from_image extension.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl/wayland: Remove more surface specifics from create_wl_buffer

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl/wayland: Make create_wl_buffer more generic

Remove surface-specific code from create_wl_buffer, so it's now just a
generic translation from DRIimage to wl_buffer.

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

gbm: Remove is_planar_format dead code

This was only used in create_dumb() to blacklist planar formats.
However, the start of the function already whitelists ARGB8888 (cursor)
and XRGB8888 (scanout), and nothing else. So this entire function can be
removed.

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

gbm: Check harder for supported formats

Luckily no-one really used the is_format_supported() call, because it
only supported three formats.

Also, since buffers with alpha can be displayed on planes, stop banning
them from use.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

gbm: Pull out FourCC <-> DRIimage format table

Rather than duplicated (yet asymmetric) open-coded tables, pull them out
to a common structure.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

gbm: Axe buffer import format conversion table

Wayland buffers coming from wl_drm use the WL_DRM_FORMAT_* enums, which
are identical to GBM_FORMAT_*. Similarly, FD imports do not need to
convert between GBM and DRI FourCC, since they are (almost) completely
compatible.

This widens the formats accepted by gbm_bo_import() when importing
wl_buffers; previously, only XRGB8888, ARGB8888, RGB565 and YUYV were
supported.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

i965/gen4: Set tile offsets to zero after depth rebase

Current logic calls intel_renderbuffer_set_draw_offset() which in
turn tries to calculate x and y offset against layer/level settings
that are against the original miptree actually having sufficient
levels/layers. This returns correctly x=0 y=0 regardless of the given
layer/level only because one calls intel_miptree_get_image_offset()
which goes and consults miptree offset table which in turn luckily
contains entries for max-mipmap levels, all initialised to zero even
in case of non-mipmapped.

This patch stops consulting the table and simply sets the draw
offsets to zero that are compatible with the single slice miptree
backing the renderbuffer.
This prepares for ISL based miptrees that calculate offsets
on-demand and do not tolerate levels beyond what the miptree has.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Refactor check for separate stencil

v2 (Jason): s/needs_stencil/needs_separate_stencil/

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

intel/blorp/gen4: Drop cube map flag for single face copy

This will falsely trigger an assert on number of layers once
isl is used for 3D layouts of Gen4 cube maps.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/wm: Use level offsets directly

dropping dependency to slice table.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Use offset helper in intel_readpixels_tiled_memcpy()

providing support for isl based.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Pass flags instead of explicit tiling to surface creator

allowing one to use isl tiling filter.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Add pitch override for imported buffer objects

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Stop setting total_width/height for existing bo

Now that image surface vertical slice calculator doesn't depend
on total_height, total dimensions are only needed when new buffer
objects are created. Therefore one can safely ignore them when
miptrees are created for already exisiting buffer objects.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/wm: Use isl for filling tex image parameters

This helps to drop dependency to miptree::total_height which is
used in brw_miptree_get_vertical_slice_pitch().

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

intel/isl: Take 3D surfaces into account in image params

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Check for miptree_create() failures

Rest of the function assumes it always succeeds.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Do not rely on msaa type to decide if aux is needed

Once the driver moves to ISL both compressed and uncompressed have
the same type. One needs to tell them apart by other means. This
can be done by checking the existence of mcs_buf.

There is a short period of time within intel_miptree_create()
where mcs_buf doesn't exist yet (between calls to
intel_miptree_create_layout() and intel_miptree_alloc_mcs()).
First compute_msaa_layout() makes the decision if compression is
to be used and sets the msaa_layout type. Then based on the type
one sets aux_usage and finally decides if mcs_buf is needed.

This patch duplicates the logic in compute_msaa_layout() and uses
that to make the decision on aux_usage and mcs_buf allocation.
Most of the original logic in compute_msaa_layout() will be gone
in later patch leaving only one version.

Elsewhere only brw_populate_sampler_prog_key_data() needs to know
if compression is used based on the msaa_type. This is now
replaced with consideration for number of samples and existence
of mcs_buf. All other occurrences consider CMS || UMS which can
be represented using single the type of ISL_MSAA_LAYOUT_ARRAY
without any tweaks.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Make irb::mt_layer logical instead of physical

same as irb::layer_count. In case of copies and blits msaa
surfacas already fall to blorp which natively works with logical
slices.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/tex: Use offset helper instead of accessing table directly

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Mark read-only args as const in intel_miptree_supports_hiz()

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Use > 1 instead of > 0 to check for multisampling

Checking against zero currently works as single sampling is
represented with zero. Once one moves to isl single sampling
really has sample number of one.

This keeps later patches simpler.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/miptree: Set refcount before failing via _release()

Otherwise one wraps uint to UINT_MAX via -1.

Fixes: 3cf470f2b6c ("i965: Add isl based miptree creator")
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

build: Add $(top_srcdir)/src/compiler/spirv to AM_CPPFLAGS

Generated C files try to include spirv_info.h.  For in-tree builds,
the header is in the same directory, so it just works.  For out-of-tree
builds, we need to look for it in srcdir rather than builddir.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101831
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>