Commit Graph

305 Commits

Author SHA1 Message Date
Erik Faye-Lund
d30ce03bc0 meson: add build-summary
This roughly mirrors what we get from autotools. There's a few
differences, though:

1. The "exec_prefix" output has been dropped. Meson doesn't support
   this, so it makes no sense here.
2. The "llvm-config" output has been dropped. Meson abstracts dependency
   discovery a bit more than our autotools build-system does, so it's
   not easy to get this information as-is.
3. HUD extra stats, SWR archs, Shared/Static libs and CFLAGS / CXXFLAGS /
   LDFLAGS has been dropped. These can be inspected by "meson configure".
4. How we set defines works quite differently in our Meson build-system,
   and the result isn't quite the same. In particular, the DEFINES output
   has been dropped, to avoid having to refactor the code too much.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109326
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Dylan Baker <dylan@pnwbakers.com>
2019-05-02 18:30:29 +00:00
Erik Faye-Lund
2127403439 meson: give dri- and gallium-drivers separate vars
Variables are cheap, and there's little reason for the dri and gallium
drivers to work on the same variable for the driver list. So let's split
these in two separate lists instead.

This makes it easier to inspect these after-the fact, for instance
for generating a summary of build-settings.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Acked-by: Dylan Baker <dylan@pnwbakers.com>
2019-05-02 18:30:29 +00:00
Eric Anholt
7e069832a0 kmsro: Add support for V3D.
Like vc4, we expect to have SOCs with various displays that have a single
V3D instance for rendering.

v2: Add v3d to the list of drivers that make enabling kmsro valid.

Acked-by: Rob Clark <robdclark@chromium.org>
2019-04-26 14:59:32 -07:00
Rob Herring
b1da1946c7 kmsro: Add lima renderonly support
Enable using lima for KMS renderonly. This still needs KMS driver
name mapping to kmsro to be used automatically.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
2019-04-11 09:57:53 +08:00
Qiang Yu
92d7ca4b1c gallium: add lima driver
v2:
- use renamed util_dynarray_grow_cap
- use DEBUG_GET_ONCE_FLAGS_OPTION for debug flags
- remove DRM_FORMAT_MOD_ARM_AGTB_MODE0 usage
- compute min/max index in driver

v3:
- fix plbu framebuffer state calculation
- fix color_16pc assemble
- use nir_lower_all_source_mods for lowering neg/abs/sat
- use float arrary for static GPU data
- add disassemble comment for static shader code
- use drm_find_modifier

v4:
- use lima_nir_lower_uniform_to_scalar

v5:
- remove nir_opt_global_to_local when rebase

Cc: Rob Clark <robdclark@gmail.com>
Cc: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Andreas Baierl <ichgeh@imkreisrum.de>
Signed-off-by: Arno Messiaen <arnomessiaen@gmail.com>
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: marmeladema <xademax@gmail.com>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rohan Garg <rohan@garg.io>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
2019-04-11 09:57:53 +08:00
Eric Engestrom
05b114e526 simplify LLVM version string printing
Figure it out once in the build system, then just use that all over the place.

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2019-04-04 16:08:11 +00:00
Dylan Baker
4c332a1f9f meson: Error if LLVM is turned off but clover it turned on
Since clover has a hard requirement on LLVM

v2: - make error message more specific

Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2019-04-03 09:41:24 -07:00
Dylan Baker
29912f2ea4 meson: Error if LLVM doesn't have rtti when building clover
We already do this for nouveau, but it's required for clover too.
2019-04-03 09:41:24 -07:00
Gurchetan Singh
b070861045 configure.ac / meson: depend on libnativewindow when appropriate
libnativewindow is only available on O or greater, and it's
required for some features.

Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
2019-03-21 15:36:39 -07:00
Benjamin Gordon
b30aad552c configure.ac/meson.build: Add options for library suffixes
When building the Chrome OS Android container, we need to build copies
of mesa that don't conflict with the Android system-supplied libraries.
This adds options to create suffixed versions of EGL and GLES libraries:

libEGL.so -> libEGL${egl-lib-suffix}.so
libGLESv1_CM.so -> libGLESv1_CM${gles-lib-suffix}.so
libGLESv2.so -> libGLES${gles-lib-suffix}.so

This is similar to what happens when --enable-libglvnd is specified, but
without the side effects of linking against libglvnd.  To avoid
unexpected clashes with the suffixed appended by libglvnd, make it an
error to specify both --enable-libglvnd and --with-egl-lib-suffix.

Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2019-03-21 10:18:31 -07:00
Chia-I Wu
4f863dc0f7 turnip: guard -Dvulkan-driver=freedreno
Require -DI-love-half-baked-turnips=true as well to enable freedreno
vulkan driver.
2019-03-11 10:02:13 -07:00
Bas Nieuwenhuizen
26380b3a9f turnip: Add driver skeleton (v2)
meson files have been updated, autotools and android still need
updating.

Only build tested.

v2 (chadv):
  - Rebase onto master.
  - Fix build breakage in Python scripts.
  - Drop the WSI code. The internal WSI apis have changed recently, and
    will likely change again before the driver goes upstream. To avoid
    unnecessary rebase work, let's drop the WSI code and re-add it when
    we're ready to really use WSI.

(olv, after rebase) do not enable freedreno by default on ARM
2019-03-11 10:01:15 -07:00
Eric Engestrom
e1d81decf7 build: make passing an incorrect pointer type a hard error
More or less any of this issue pointed out by the compiler is
a coding error. Make sure we flag it and bail loudly.

v2: - apply the change to autotools and scons as well (Emil)
    - C++ doesn't need this, it's already an error and the flag
      doesn't exist (Gert)
v3: - drop scons, flags are not checked so until someone adds that
      functionality we can't have this.

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com> # v1
Reviewed-by: Emil Velikov <emil.velikov@collabora.com> # v1
[Emil: apply the same change to autotools and scons]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-03-08 16:24:06 +00:00
Eric Engestrom
ad862c36e5 meson: fix with_dri2 definition for GNU Hurd
Suggested-by: Dylan Baker <dylan@pnwbakers.com>
Cc: Timo Aaltonen <tjaalton@debian.org>
Cc: James Clarke <jrtc27@debian.org>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2019-03-06 12:40:06 +00:00
Eric Engestrom
e1ee4ab3dc meson: avoid going back up the tree with include_directories()
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2019-03-05 10:02:47 +00:00
Sergii Romantsov
dcc4866419 d3d: meson: do not prefix user provided d3d-drivers-path
The user can select the location where there d3d drivers
are installed by the d3d-drivers-path meson option.

By default path will be $prefix/$libdir/d3d.

Currently we add $prefix to the user provided path.
Resulting in an incorrect or even missing path.

Based on logic of
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109698
CC: Kenneth Graunke <kenneth@whitecape.org>
CC: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Sergii Romantsov <sergii.romantsov@globallogic.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2019-02-25 16:07:02 +00:00
Sergii Romantsov
f6556ec7d1 dri: meson: do not prefix user provided dri-drivers-path
The user can select the location where there dri drivers
are installed by the dri-drivers-path meson option.

By default path will be $prefix/$libdir/dri.

Currently we add $prefix to the user provided path.
Resulting in an incorrect or even missing path.

v2: fixed dri_search_path by default, rebased to master

v3: new commit-message (Emil Velikov), cc mesa-stable

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109698
CC: Rafael Antognolli <rafael.antognolli@intel.com>
CC: Dylan Baker <dylan@pnwbakers.com>
Cc: 18.3 19.0 <mesa-stable@lists.freedesktop.org>
Fixes: 306914db92 (meson: Add dridriverdir variable to dri.pc.)
Signed-off-by: Sergii Romantsov <sergii.romantsov@globallogic.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2019-02-25 16:07:02 +00:00
Andre Heider
f89a578818 iris: fix build with gallium nine
Signed-off-by: Andre Heider <a.heider@gmail.com>
2019-02-21 10:26:12 -08:00
Kenneth Graunke
2dce0e94a3 iris: Initial commit of a new 'iris' driver for Intel Gen8+ GPUs.
This commit introduces a new Gallium driver for Intel Gen8+ GPUs,
named 'iris_dri.so' after the hardware.

Developed by:
- Kenneth Graunke (overall driver)
- Dave Airlie (shaders, conditional render, overflow query, Gen8 port)
- Chris Wilson (fencing, pinned memory, ...)
- Jordan Justen (compute shaders)
- Jason Ekstrand (image load store)
- Caio Marcelo de Oliveira Filho (tessellation control passthrough)
- Rafael Antognolli (auxiliary buffer fixes)
- The rest of the i965 contributors and the Mesa community
2019-02-21 10:26:04 -08:00
Konstantin Kharlamov
fccc9d3de6 mapi: work around GCC LTO dropping assembly-defined functions
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109391

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Acked-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2019-02-13 14:20:51 +00:00
Alyssa Rosenzweig
a81d5587d6 meson: Remove panfrost from default driver list
Until the kernel side matures and the full driver is upstreamed, to
avoid end-user surprises, Panfrost should only be built for the
adventurous.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-02-06 02:59:00 +00:00
Alyssa Rosenzweig
61d3ae6e0b panfrost: Initial stub for Panfrost driver
This patch adds an initial stub for the Gallium driver, containing
simple screen functions and the majority of the driver headers but no
actual functionality. It further adds the winsys glue for linking in
this stub driver via kmsro on Rockchip/Amlogic boards.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
2019-02-05 01:19:30 +00:00
Marek Olšák
1e85cfb91a meson: drop the xcb-xrandr version requirement
autotools doesn't have any requirement. This fixes meson on Ubuntu 16.04.

Cc: 18.3 19.0 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
2019-02-03 18:39:57 -05:00
Jonathan Marek
f6292c32cc kmsro: Add freedreno renderonly support
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
2019-01-28 18:25:27 -05:00
Vinson Lee
be5b271ea7 meson: Fix typo.
meson.build:166:21: ERROR:  Unknown method "verson_compare" for a string.

Fixes: c1efa240c9 ("meson: Add warnings and errors when using ICC")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Cc: 18.3 <mesa-stable@lists.freedesktop.org>
2019-01-28 10:47:32 -08:00
Rob Herring
41a0acd6a1 Switch imx to kmsro and remove the imx winsys
The kmsro winsys is equivalent to the imx winsys, so we can switch
to it and remove the imx one.

Signed-off-by: Rob Herring <robh@kernel.org>
2019-01-28 11:50:08 -06:00
Rob Herring
827e0d6654 kmsro: Add etnaviv renderonly support
Enable using etnaviv for KMS renderonly. This still needs KMS driver
name mapping to kmsro to be used automatically.

Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-01-28 11:45:43 -06:00
Eric Anholt
ed65aeec78 pl111: Rename the pl111 driver to "kmsro".
The vc4 driver can do prime sharing to many different KMS-only devices,
such as the various tinydrm drivers for SPI-attached displays.  Rename the
driver away from "pl111" to represent what it will actually support:
various sorts of KMS displays with the renderonly layer used to attach a
GPU.

Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
2019-01-28 09:35:45 -08:00
Dylan Baker
c1efa240c9 meson: Add warnings and errors when using ICC
ICC tries to be helpful by not erroring when it sees something that it
doesn't understand, which is completely the opposite of helpful. Meson
0.49.0 does much better at handling this by really trying to make ICC
error, but there are some things in mesa that still get ignored until
0.49.1

v2: - Fix id check, which is 'intel' not 'icc'

Cc: 18.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com> (v1)
2019-01-24 19:14:50 +00:00
Marek Olšák
c02f761bdf winsys/amdgpu: use the new BO list API 2019-01-22 11:59:27 -05:00
Dylan Baker
431e9abaab meson: allow building dri driver without window system if osmesa is classic
This was already enabled for gallium based osmesa with gallium drivers
in 9d10581897, so do the same for classic
driver with classic osmesa.

Fixes: cbbd5bb889
       ("meson: build classic osmesa")
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2019-01-16 17:49:51 +00:00
Pierre Moreau
0b736f7fd4 meson: Fix with_gallium_icd to with_opencl_icd
`with_gallium_icd` is never used throughout the different Meson build
files, whereas `with_opencl_icd` tracks whether or not `gallium-opencl`
was set to "icd".

Fixes: 42ea0631f1
         ("meson: build clover")
Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2019-01-15 13:06:50 -08:00
Chia-I Wu
6eeb1fe491 meson: fix EGL/X11 build without GLX
dep_xcb and others were not set under this configuration.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2019-01-08 10:58:48 -08:00
Dylan Baker
a2596450ac meson: Error out if building nouveau and using LLVM without rtti
Nouveau requires rtti. Often LLVM is configured without rtti, and code
with and without cannot be linked safely. Lets just error out if nouveau
is requested and llvm is built without rtti.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109202
Fixes: c5a97d658e
       ("meson: fix builds against LLVM built without rtti")
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2019-01-02 09:30:12 -08:00
Dylan Baker
133a5b8383 meson: Override C++ standard to gnu++11 when building with altivec on ppc64
Otherwise there will be symbol collisions for the vector name.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108943
Distro Bug: https://bugs.gentoo.org/673622
Fixes: 42ea0631f1
       ("meson: build clover")
Acked-by: Matt Turner <mattst88@gmail.com>
2018-12-28 11:04:57 -08:00
Emil Velikov
9d10581897 meson: don't require glx/egl/gbm with gallium drivers
The gallium drivers do not require a DRI loader. Drop the artificial
and unnecessary restriction.

Fixes: af9d276134 ("meson: build libmesa_gallium")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-12-13 03:54:03 +00:00
Vinson Lee
0f7ba5758b meson: Fix libsensors detection.
Fixes: 5e71efef44 ("meson: Add lmsensors support")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-12-18 19:24:01 -08:00
Vinson Lee
84f39e5971 meson: Fix typo.
Fixes: 6b4c7047d5 ("meson: build gallium nine state_tracker")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2018-12-18 19:14:11 -08:00
Christian Gmeiner
7ea8e54dd6 meson: add etnaviv to the tools option
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-12-18 21:50:58 +01:00
Dylan Baker
7a90886921 meson: Add toggle for glx-direct
GNU Hurd needs to turn off glx-direct, rather than special case it,
we'll just add a toggle.

CC: 18.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-18 09:20:53 -08:00
Dylan Baker
8c77f4c76d meson: Add support for gnu hurd
CC: 18.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-18 09:20:49 -08:00
Dylan Baker
6cf5f25bc5 meson: remove duplicate definition
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-18 09:18:12 -08:00
Dylan Baker
e430a034b9 meson: Fix ppc64 little endian detection
Old versions of meson returned ppc64le as the cpu_family for little
endian power8 cpus, versions >=0.48 don't do this, so the check wouldn't
work in that case. This generalizes the check to work for both old and
new versions of meson.

Fixes: 34bbb24ce7
       ("meson: Add support for ppc assembly/optimizations")
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-18 09:17:54 -08:00
Emil Velikov
a95ec13879 glx: mandate xf86vidmode only for "drm" dri platforms
Currently we have the three dri "platforms" - drm, apple and windows.

Since xf86vidmode is a thing only for the drm one, adjust the
preprocessor guards and correctly check for the dependency.

v2: terminate the GLX_USE_WINDOWSGL hunk

Cc: Jon TURNEY <jon.turney@dronecode.org.uk>
Fixes: 5bc509363b ("glx: make xf86vidmode mandatory for direct rendering")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Acked-by: Eric Engestrom <eric.engestrom@intel.com>
2018-12-13 17:38:19 +00:00
Nicolai Hähnle
4275cae95c meson: link LLVM 'native' component when LLVM is available
Linking against LLVM built with BUILD_SHARED_LIBS fails otherwise,
as the component is required for the draw module.

Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-12-07 16:26:14 +01:00
Samuel Pitoiset
3fbdcd942f amd: remove support for LLVM 6.0
User are encouraged to switch to LLVM 7.0 released in September 2018.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-12-06 14:02:56 +01:00
Eric Engestrom
a0b14c1b02 meson: skip asm check when asm is disabled
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-12-04 16:22:51 +00:00
Eric Engestrom
c0c533767e build: stop defining unused VERSION
Scons and autotools don't define it, and as of last commit nothing
uses it.

`VERSION` is also a generic enough name that something somewhere will
eventually clash, and we don't want to repeat the LLVM `DEBUG` fiasco.

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-11-26 22:05:02 +00:00
Emil Velikov
5bc509363b glx: make xf86vidmode mandatory for direct rendering
Currently we detect the module and if missing, the glXGetMsc* API is
effectively a stub, always returning false.

This is what effectively has been happening with our meson build :-(

Thus users have no chance of using it - they cannot even distinguish
if the failure is due to a misconfigured build.

There's no reason for keeping xf86vidmode optional - it has been
available in all distributions for years.

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Fixes: a47c525f32 "meson: build glx"
2018-11-20 11:13:20 +00:00
Eric Engestrom
4fa2fb3524 meson: fix wayland-less builds
Those empty variables in the !wayland case are useless and running that
meson.build with them breaks the build:

  [287/850] Generating wayland-drm-client-protocol.h with a custom command.
  FAILED: src/egl/wayland/wayland-drm/wayland-drm-client-protocol.h
  client-header ../src/egl/wayland/wayland-drm/wayland-drm.xml src/egl/wayland/wayland-drm/wayland-drm-client-protocol.h
  /bin/sh: client-header: command not found
  ninja: build stopped: subcommand failed.

Fixes: d1992255bb "meson: Add build Intel "anv" vulkan driver"
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2018-11-13 17:25:02 +00:00