mirror of
https://gitlab.freedesktop.org/wayland/wayland.git
synced 2026-04-09 08:21:30 -04:00
Compare commits
No commits in common. "main" and "1.6.0" have entirely different histories.
235 changed files with 10127 additions and 45242 deletions
|
|
@ -1,24 +0,0 @@
|
|||
root = true
|
||||
|
||||
[*]
|
||||
charset = utf-8
|
||||
end_of_line = lf
|
||||
trim_trailing_whitespace = true
|
||||
insert_final_newline = true
|
||||
indent_style = tab
|
||||
indent_size = 8
|
||||
max_line_length = 80
|
||||
|
||||
[*.{xml,xsl}]
|
||||
indent_style = space
|
||||
indent_size = 2
|
||||
tab_width = 8
|
||||
|
||||
[*.py]
|
||||
indent_style = space
|
||||
indent_size = 4
|
||||
|
||||
[*.yml]
|
||||
indent_style = space
|
||||
indent_size = 2
|
||||
max_line_length = off
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
# Use the following command to ignore the following commits in git blame:
|
||||
# git config blame.ignoreRevsFile .git-blame-ignore-revs
|
||||
|
||||
77b9eb76369e27142b8be296b5f2eb1ca466272a # protocol: reindent wayland.xml
|
||||
54
.gitignore
vendored
54
.gitignore
vendored
|
|
@ -1,8 +1,58 @@
|
|||
*.announce
|
||||
*.sig
|
||||
*.deps
|
||||
*.jpg
|
||||
*.la
|
||||
*.lo
|
||||
*.o
|
||||
*.pc
|
||||
*.so
|
||||
*.swp
|
||||
*.3
|
||||
*.7
|
||||
*.log
|
||||
*.trs
|
||||
*.tar.xz
|
||||
*~
|
||||
.libs
|
||||
.dirstamp
|
||||
cscope.out
|
||||
ctags
|
||||
/aclocal.m4
|
||||
/wayland-scanner.m4
|
||||
/autom4te.cache
|
||||
/compile
|
||||
/config.guess
|
||||
/config.h
|
||||
/config.h.in
|
||||
/config.log
|
||||
/config.mk
|
||||
/config.status
|
||||
/config.sub
|
||||
/configure
|
||||
/depcomp
|
||||
/install-sh
|
||||
/libtool
|
||||
/ltmain.sh
|
||||
/missing
|
||||
/stamp-h1
|
||||
/test-driver
|
||||
Makefile
|
||||
Makefile.in
|
||||
array-test
|
||||
client-test
|
||||
connection-test
|
||||
display-test
|
||||
event-loop-test
|
||||
exec-fd-leak-checker
|
||||
fixed-benchmark
|
||||
fixed-test
|
||||
list-test
|
||||
map-test
|
||||
message-test
|
||||
os-wrappers-test
|
||||
queue-test
|
||||
resources-test
|
||||
sanity-test
|
||||
signal-test
|
||||
socket-test
|
||||
wayland-scanner
|
||||
protocol/*.[ch]
|
||||
|
|
|
|||
356
.gitlab-ci.yml
356
.gitlab-ci.yml
|
|
@ -1,356 +0,0 @@
|
|||
# This file uses the freedesktop ci-templates to build Wayland and run our
|
||||
# tests in CI.
|
||||
#
|
||||
# ci-templates uses a multi-stage build process. First, the base container
|
||||
# image is built which contains the core distribution, the toolchain, and
|
||||
# all our build dependencies. This container is aggressively cached; if a
|
||||
# container image matching $FDO_DISTRIBUTION_TAG is found in either the
|
||||
# upstream repo (wayland/weston) or the user's downstream repo, it is
|
||||
# reused for the build. This gives us predictability of build and far
|
||||
# quicker runtimes, however it means that any changes to the base container
|
||||
# must also change $FDO_DISTRIBUTION_TAG. When changing this, please use
|
||||
# the current date as well as a unique build identifier.
|
||||
#
|
||||
# After the container is either rebuilt (tag mismatch) or reused (tag
|
||||
# previously used), the build stage executes within this container.
|
||||
#
|
||||
# The final stage is used to expose documentation and coverage information,
|
||||
# including publishing documentation to the public site when built on the
|
||||
# main branch.
|
||||
#
|
||||
# Apart from the 'variables', 'include', and 'stages' top-level anchors,
|
||||
# everything not beginning with a dot ('.') is the name of a job which will
|
||||
# be executed as part of CI, unless the rules specify that it should not be
|
||||
# run.
|
||||
#
|
||||
# Variables prefixed with CI_ are generally provided by GitLab itself;
|
||||
# variables prefixed with FDO_ and templates prefixed by .fdo are provided
|
||||
# by the ci-templates.
|
||||
#
|
||||
# For more information on GitLab CI, including the YAML syntax, see:
|
||||
# https://docs.gitlab.com/ee/ci/yaml/README.html
|
||||
#
|
||||
# Note that freedesktop.org uses the 'Community Edition' of GitLab, so features
|
||||
# marked as 'premium' or 'ultimate' are not available to us.
|
||||
#
|
||||
# For more information on ci-templates, see:
|
||||
# - documentation at https://freedesktop.pages.freedesktop.org/ci-templates/
|
||||
# - repo at https://gitlab.freedesktop.org/freedesktop/ci-templates/
|
||||
|
||||
include:
|
||||
- project: 'freedesktop/ci-templates'
|
||||
# Here we use a fixed ref in order to isolate ourselves from ci-templates
|
||||
# API changes. If you need new features from ci-templates you must bump
|
||||
# this to the current SHA you require from the ci-templates repo, however
|
||||
# be aware that you may need to account for API changes when doing so.
|
||||
ref: 48c2c583a865bd59be21e8938df247faf460099c
|
||||
file:
|
||||
- '/templates/debian.yml'
|
||||
- '/templates/freebsd.yml'
|
||||
- '/templates/ci-fairy.yml'
|
||||
|
||||
variables:
|
||||
FDO_UPSTREAM_REPO: wayland/wayland
|
||||
FDO_REPO_SUFFIX: "$BUILD_OS/$BUILD_ARCH"
|
||||
|
||||
|
||||
# Define the build stages. These are used for UI grouping as well as
|
||||
# dependencies.
|
||||
stages:
|
||||
- "Merge request checks"
|
||||
- "Base container"
|
||||
- "Build and test"
|
||||
- "Other build configurations"
|
||||
|
||||
workflow:
|
||||
rules:
|
||||
- if: $CI_PIPELINE_SOURCE == "merge_request_event"
|
||||
- if: $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS
|
||||
when: never
|
||||
- if: $CI_COMMIT_BRANCH
|
||||
|
||||
.ci-rules:
|
||||
rules:
|
||||
- when: on_success
|
||||
|
||||
# Base variables used for anything using a Debian environment
|
||||
.os-debian:
|
||||
variables:
|
||||
BUILD_OS: debian
|
||||
FDO_DISTRIBUTION_VERSION: trixie
|
||||
FDO_DISTRIBUTION_PACKAGES: 'build-essential pkg-config libexpat1-dev libffi-dev libxml2-dev doxygen graphviz xmlto xsltproc docbook-xsl mdbook meson ninja-build'
|
||||
# bump this tag every time you change something which requires rebuilding the
|
||||
# base image
|
||||
FDO_DISTRIBUTION_TAG: "2026-01-31.0"
|
||||
|
||||
.debian-x86_64:
|
||||
extends:
|
||||
- .os-debian
|
||||
variables:
|
||||
BUILD_ARCH: "x86-64"
|
||||
|
||||
.debian-aarch64:
|
||||
extends:
|
||||
- .os-debian
|
||||
variables:
|
||||
BUILD_ARCH: "aarch64"
|
||||
|
||||
.debian-armv7:
|
||||
extends:
|
||||
- .os-debian
|
||||
variables:
|
||||
BUILD_ARCH: "armv7"
|
||||
FDO_DISTRIBUTION_PLATFORM: "linux/arm/v7"
|
||||
|
||||
|
||||
# Does not inherit .ci-rules as we only want it to run in MR context.
|
||||
check-commit:
|
||||
extends:
|
||||
- .fdo.ci-fairy
|
||||
stage: "Merge request checks"
|
||||
rules:
|
||||
- if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
|
||||
when: always
|
||||
- when: never
|
||||
script:
|
||||
- ci-fairy check-commits --signed-off-by --junit-xml=results.xml
|
||||
variables:
|
||||
GIT_DEPTH: 100
|
||||
artifacts:
|
||||
reports:
|
||||
junit: results.xml
|
||||
|
||||
|
||||
# Build our base container image, which contains the core distribution, the
|
||||
# toolchain, and all our build dependencies. This will be reused in the build
|
||||
# stage.
|
||||
x86_64-debian-container_prep:
|
||||
extends:
|
||||
- .ci-rules
|
||||
- .debian-x86_64
|
||||
- .fdo.container-build@debian
|
||||
stage: "Base container"
|
||||
variables:
|
||||
GIT_STRATEGY: none
|
||||
|
||||
aarch64-debian-container_prep:
|
||||
extends:
|
||||
- .ci-rules
|
||||
- .debian-aarch64
|
||||
- .fdo.container-build@debian
|
||||
tags:
|
||||
- aarch64
|
||||
stage: "Base container"
|
||||
variables:
|
||||
GIT_STRATEGY: none
|
||||
|
||||
armv7-debian-container_prep:
|
||||
extends:
|
||||
- .ci-rules
|
||||
- .debian-armv7
|
||||
- .fdo.container-build@debian
|
||||
tags:
|
||||
- aarch64
|
||||
stage: "Base container"
|
||||
variables:
|
||||
GIT_STRATEGY: none
|
||||
|
||||
|
||||
# Core build environment.
|
||||
.build-env:
|
||||
variables:
|
||||
MESON_BUILD_TYPE: "-Dbuildtype=debug -Doptimization=0 -Db_sanitize=address,undefined -Ddocbook_validation=true"
|
||||
# See https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/154
|
||||
ASAN_OPTIONS: "detect_odr_violation=0"
|
||||
before_script:
|
||||
- export BUILD_ID="wayland-$CI_JOB_NAME"
|
||||
- export PREFIX="${CI_PROJECT_DIR}/prefix-${BUILD_ID}"
|
||||
- export BUILDDIR="${CI_PROJECT_DIR}/build-${BUILD_ID}"
|
||||
- mkdir "$BUILDDIR" "$PREFIX"
|
||||
|
||||
|
||||
# Build variants to be stacked on as required.
|
||||
.build-release:
|
||||
stage: "Other build configurations"
|
||||
variables:
|
||||
MESON_BUILD_TYPE: "-Dbuildtype=release"
|
||||
|
||||
|
||||
# OS/architecture-specific variants
|
||||
.build-env-debian-x86_64:
|
||||
extends:
|
||||
- .fdo.suffixed-image@debian
|
||||
- .debian-x86_64
|
||||
- .build-env
|
||||
needs:
|
||||
- job: x86_64-debian-container_prep
|
||||
artifacts: false
|
||||
|
||||
.build-env-debian-aarch64:
|
||||
extends:
|
||||
- .fdo.suffixed-image@debian
|
||||
- .debian-aarch64
|
||||
- .build-env
|
||||
variables:
|
||||
# At least with the versions we have, the LSan runtime makes fork unusably
|
||||
# slow on AArch64, which is bad news since the test suite decides to fork
|
||||
# for every single subtest. For now, in order to get AArch64 builds and
|
||||
# tests into CI, just assume that we're not going to leak any more on
|
||||
# AArch64 than we would on ARMv7 or x86-64.
|
||||
ASAN_OPTIONS: "detect_leaks=0,detect_odr_violation=0"
|
||||
tags:
|
||||
- aarch64
|
||||
needs:
|
||||
- job: aarch64-debian-container_prep
|
||||
artifacts: false
|
||||
|
||||
.build-env-debian-armv7:
|
||||
extends:
|
||||
- .fdo.suffixed-image@debian
|
||||
- .debian-armv7
|
||||
- .build-env
|
||||
tags:
|
||||
- aarch64
|
||||
needs:
|
||||
- job: armv7-debian-container_prep
|
||||
artifacts: false
|
||||
|
||||
|
||||
# Full build and test.
|
||||
.do-build:
|
||||
extends:
|
||||
- .ci-rules
|
||||
stage: "Build and test"
|
||||
script:
|
||||
- meson setup $BUILDDIR --prefix="$PREFIX" -Dicon_directory=/usr/share/X11/icons --fatal-meson-warnings -Dwerror=true ${MESON_BUILD_TYPE}
|
||||
- ninja -C $BUILDDIR -k0 -j${FDO_CI_CONCURRENT:-4}
|
||||
- meson test -C $BUILDDIR --num-processes ${FDO_CI_CONCURRENT:-4}
|
||||
- ninja -C $BUILDDIR install
|
||||
- ninja -C $BUILDDIR clean
|
||||
artifacts:
|
||||
name: wayland-$CI_JOB_NAME
|
||||
when: always
|
||||
paths:
|
||||
- build-*/meson-logs
|
||||
- prefix-*
|
||||
reports:
|
||||
junit: build-*/meson-logs/testlog.junit.xml
|
||||
|
||||
# Full build and test.
|
||||
.do-build-qemu:
|
||||
extends:
|
||||
- .ci-rules
|
||||
stage: "Build and test"
|
||||
script:
|
||||
# Start the VM and copy our workspace to the VM
|
||||
- /app/vmctl start
|
||||
- scp -r $PWD "vm:"
|
||||
# The `set +e is needed to ensure that we always copy the meson logs back to
|
||||
# the workspace to see details about the failed tests.
|
||||
- |
|
||||
set +e
|
||||
/app/vmctl exec "pkg info; cd $CI_PROJECT_NAME ; meson setup $BUILDDIR --prefix=$PREFIX $MESON_BUILD_TYPE $MESON_ARGS && ninja -C $BUILDDIR -j${FDO_CI_CONCURRENT:-4}"
|
||||
/app/vmctl exec "meson test --print-errorlogs -C $BUILDDIR --num-processes ${FDO_CI_CONCURRENT:-4}" && touch .tests-successful
|
||||
set -ex
|
||||
scp -r vm:$BUILDDIR/meson-logs .
|
||||
/app/vmctl exec "ninja -C $BUILDDIR install"
|
||||
mkdir -p $PREFIX && scp -r vm:$PREFIX/ $PREFIX/
|
||||
# Finally, shut down the VM.
|
||||
- /app/vmctl stop
|
||||
- test -f .tests-successful || exit 1
|
||||
artifacts:
|
||||
name: wayland-$CI_JOB_NAME
|
||||
when: always
|
||||
paths:
|
||||
- meson-logs
|
||||
- prefix-*
|
||||
reports:
|
||||
junit: meson-logs/testlog.junit.xml
|
||||
|
||||
# Full build and test.
|
||||
x86_64-debian-build:
|
||||
extends:
|
||||
- .build-env-debian-x86_64
|
||||
- .do-build
|
||||
|
||||
x86_64-release-debian-build:
|
||||
extends:
|
||||
- .build-env-debian-x86_64
|
||||
- .do-build
|
||||
- .build-release
|
||||
|
||||
aarch64-debian-build:
|
||||
extends:
|
||||
- .build-env-debian-aarch64
|
||||
- .do-build
|
||||
|
||||
aarch64-release-debian-build:
|
||||
extends:
|
||||
- .build-env-debian-aarch64
|
||||
- .do-build
|
||||
- .build-release
|
||||
|
||||
armv7-debian-build:
|
||||
extends:
|
||||
- .build-env-debian-armv7
|
||||
- .do-build
|
||||
|
||||
armv7-release-debian-build:
|
||||
extends:
|
||||
- .build-env-debian-armv7
|
||||
- .do-build
|
||||
- .build-release
|
||||
|
||||
# Base variables used for anything using a FreeBSD environment
|
||||
.os-freebsd:
|
||||
variables:
|
||||
BUILD_OS: freebsd
|
||||
FDO_DISTRIBUTION_VERSION: "14.4"
|
||||
FDO_DISTRIBUTION_PACKAGES: 'libxslt meson ninja pkgconf expat libffi libepoll-shim libxml2'
|
||||
# bump this tag every time you change something which requires rebuilding the
|
||||
# base image
|
||||
FDO_DISTRIBUTION_TAG: "2026-03-10.0"
|
||||
# Don't build documentation since installing the required tools massively
|
||||
# increases the VM image (and therefore container) size.
|
||||
MESON_ARGS: "--fatal-meson-warnings -Dwerror=true -Ddocumentation=false"
|
||||
|
||||
.freebsd-x86_64:
|
||||
extends:
|
||||
- .os-freebsd
|
||||
variables:
|
||||
BUILD_ARCH: "x86_64"
|
||||
|
||||
x86_64-freebsd-container_prep:
|
||||
extends:
|
||||
- .ci-rules
|
||||
- .freebsd-x86_64
|
||||
- .fdo.qemu-build@freebsd@x86_64
|
||||
stage: "Base container"
|
||||
variables:
|
||||
GIT_STRATEGY: none
|
||||
|
||||
.build-env-freebsd-x86_64:
|
||||
variables:
|
||||
# Compiling with ASan+UBSan appears to trigger an infinite loop in the
|
||||
# compiler shipped with FreeBSD 13.0, so we only use UBSan here.
|
||||
# Additionally, sanitizers can't be used with b_lundef on FreeBSD.
|
||||
MESON_BUILD_TYPE: "-Dbuildtype=debug -Db_sanitize=undefined -Db_lundef=false"
|
||||
extends:
|
||||
- .fdo.suffixed-image@freebsd
|
||||
- .freebsd-x86_64
|
||||
- .build-env
|
||||
needs:
|
||||
- job: x86_64-freebsd-container_prep
|
||||
artifacts: false
|
||||
|
||||
# Full build and test.
|
||||
x86_64-freebsd-build:
|
||||
extends:
|
||||
- .build-env-freebsd-x86_64
|
||||
- .do-build-qemu
|
||||
|
||||
x86_64-release-freebsd-build:
|
||||
extends:
|
||||
- .build-env-freebsd-x86_64
|
||||
- .do-build-qemu
|
||||
- .build-release
|
||||
|
|
@ -1,8 +0,0 @@
|
|||
<!--
|
||||
This repository is for the Wayland protocol description and the libwayland IPC helper
|
||||
library only. Issues with Wayland during day-to-day usage are almost
|
||||
certainly a bug in your compositor and **not** a bug with in this
|
||||
repository.
|
||||
|
||||
Please remove this comment before filing your issue.
|
||||
-->
|
||||
3
.mailmap
3
.mailmap
|
|
@ -1,3 +0,0 @@
|
|||
Faith Ekstrand <faith@gfxstrand.net> <jason@jlekstrand.net>
|
||||
Faith Ekstrand <faith@gfxstrand.net> <jason.ekstrand@intel.com>
|
||||
Faith Ekstrand <faith@gfxstrand.net> <jason.ekstrand@collabora.com>
|
||||
|
|
@ -1,33 +0,0 @@
|
|||
# This is a set of bugbot commands for issues and merge requests - setting any of the
|
||||
# bugbot::foo labels will trigger gitlab-triage to run with this ruleset (well, the
|
||||
# one we have on the main branch at the time)
|
||||
#
|
||||
# Note that for adding labels, the label must first created in the project.
|
||||
resource_rules:
|
||||
issues:
|
||||
rules:
|
||||
- name: "Close bugs that aren't Wayland bugs"
|
||||
conditions:
|
||||
labels:
|
||||
- "bugbot::not-wayland"
|
||||
actions:
|
||||
remove_labels:
|
||||
- "bugbot::not-wayland"
|
||||
comment: |
|
||||
Thank you for the report, but your issue does not look like it would belong here. Sorry.
|
||||
|
||||
This repository is for the Wayland protocol specification and the
|
||||
low-level C library that deals with the protocol.
|
||||
|
||||
This issue here is a bug not with the protocol itself but with either
|
||||
- your compositor or desktop environment's implementation of the Wayland protocol and surrounding functionality,
|
||||
- the individual application that triggers this issue, or
|
||||
- the kernel driver used by your hardware
|
||||
|
||||
Please file the issue against your compositor/desktop environment, the application
|
||||
or the kernel drivers instead, whichever seems more likely to you. If you are not sure,
|
||||
file an issue against the application.
|
||||
status: "close"
|
||||
merge_requests:
|
||||
rules:
|
||||
[]
|
||||
344
CONTRIBUTING.md
344
CONTRIBUTING.md
|
|
@ -1,344 +0,0 @@
|
|||
Contributing to Wayland
|
||||
=======================
|
||||
|
||||
Sending patches
|
||||
---------------
|
||||
|
||||
Patches should be sent via
|
||||
[GitLab merge requests](https://docs.gitlab.com/ce/gitlab-basics/add-merge-request.html).
|
||||
Wayland is
|
||||
[hosted on freedesktop.org's GitLab](https://gitlab.freedesktop.org/wayland/wayland/):
|
||||
in order to submit code, you should create an account on this GitLab instance,
|
||||
fork the core Wayland repository, push your changes to a branch in your new
|
||||
repository, and then submit these patches for review through a merge request.
|
||||
|
||||
Wayland formerly accepted patches via `git-send-email`, sent to
|
||||
**wayland-devel@lists.freedesktop.org**; these were
|
||||
[tracked using Patchwork](https://patchwork.freedesktop.org/project/wayland/).
|
||||
Some old patches continue to be sent this way, and we may accept small new
|
||||
patches sent to the list, but please send all new patches through GitLab merge
|
||||
requests.
|
||||
|
||||
|
||||
Formatting and separating commits
|
||||
---------------------------------
|
||||
|
||||
Unlike many projects using GitHub and GitLab, Wayland has a
|
||||
[linear, 'recipe' style history](http://www.bitsnbites.eu/git-history-work-log-vs-recipe/).
|
||||
This means that every commit should be small, digestible, stand-alone, and
|
||||
functional. Rather than a purely chronological commit history like this:
|
||||
|
||||
connection: plug a fd leak
|
||||
plug another fd leak
|
||||
connection: init fds to -1
|
||||
close all fds
|
||||
refactor checks into a new function
|
||||
don't close fds we handed out
|
||||
|
||||
we aim to have a clean history which only reflects the final state, broken up
|
||||
into functional groupings:
|
||||
|
||||
connection: Refactor out closure allocation
|
||||
connection: Clear fds we shouldn't close to -1
|
||||
connection: Make wl_closure_destroy() close fds of undispatched closures
|
||||
|
||||
This ensures that the final patch series only contains the final state,
|
||||
without the changes and missteps taken along the development process.
|
||||
|
||||
The first line of a commit message should contain a prefix indicating
|
||||
what part is affected by the patch followed by one sentence that
|
||||
describes the change. For examples:
|
||||
|
||||
protocol: Support scaled outputs and surfaces
|
||||
|
||||
and
|
||||
|
||||
doc: generate server documentation from XML too
|
||||
|
||||
If in doubt what prefix to use, look at other commits that change the
|
||||
same file(s) as the patch being sent.
|
||||
|
||||
The body of the commit message should describe what the patch changes
|
||||
and why, and also note any particular side effects. This shouldn't be
|
||||
empty on most of the cases. It shouldn't take a lot of effort to write
|
||||
a commit message for an obvious change, so an empty commit message
|
||||
body is only acceptable if the questions "What?" and "Why?" are already
|
||||
answered on the one-line summary.
|
||||
|
||||
The lines of the commit message should have at most 76 characters, to
|
||||
cope with the way git log presents them.
|
||||
|
||||
See [notes on commit messages] for a recommended reading on writing commit
|
||||
messages.
|
||||
|
||||
Your patches should also include a Signed-off-by line with your name and
|
||||
email address. If you're not the patch's original author, you should
|
||||
also gather S-o-b's by them (and/or whomever gave the patch to you.) The
|
||||
significance of this is that it certifies that you created the patch,
|
||||
that it was created under an appropriate open source license, or
|
||||
provided to you under those terms. This lets us indicate a chain of
|
||||
responsibility for the copyright status of the code.
|
||||
|
||||
We won't reject patches that lack S-o-b, but it is strongly recommended.
|
||||
|
||||
When you re-send patches, revised or not, it would be very good to document the
|
||||
changes compared to the previous revision in the commit message and/or the
|
||||
merge request. If you have already received Reviewed-by or Acked-by tags, you
|
||||
should evaluate whether they still apply and include them in the respective
|
||||
commit messages. Otherwise the tags may be lost, reviewers miss the credit they
|
||||
deserve, and the patches may cause redundant review effort.
|
||||
|
||||
|
||||
Tracking patches and following up
|
||||
---------------------------------
|
||||
|
||||
Once submitted to GitLab, your patches will be reviewed by the Wayland
|
||||
development team on GitLab. Review may be entirely positive and result in your
|
||||
code landing instantly, in which case, great! You're done. However, we may ask
|
||||
you to make some revisions: fixing some bugs we've noticed, working to a
|
||||
slightly different design, or adding documentation and tests.
|
||||
|
||||
If you do get asked to revise the patches, please bear in mind the notes above.
|
||||
You should use `git rebase -i` to make revisions, so that your patches follow
|
||||
the clear linear split documented above. Following that split makes it easier
|
||||
for reviewers to understand your work, and to verify that the code you're
|
||||
submitting is correct.
|
||||
|
||||
A common request is to split single large patch into multiple patches. This can
|
||||
happen, for example, if when adding a new feature you notice a bug elsewhere
|
||||
which you need to fix to progress. Separating these changes into separate
|
||||
commits will allow us to verify and land the bugfix quickly, pushing part of
|
||||
your work for the good of everyone, whilst revision and discussion continues on
|
||||
the larger feature part. It also allows us to direct you towards reviewers who
|
||||
best understand the different areas you are working on.
|
||||
|
||||
When you have made any requested changes, please rebase the commits, verify
|
||||
that they still individually look good, then force-push your new branch to
|
||||
GitLab. This will update the merge request and notify everyone subscribed to
|
||||
your merge request, so they can review it again.
|
||||
|
||||
There are also
|
||||
[many GitLab CLI clients](https://about.gitlab.com/applications/#cli-clients),
|
||||
if you prefer to avoid the web interface. It may be difficult to follow review
|
||||
comments without using the web interface though, so we do recommend using this
|
||||
to go through the review process, even if you use other clients to track the
|
||||
list of available patches.
|
||||
|
||||
|
||||
Coding style
|
||||
------------
|
||||
|
||||
You should follow the style of the file you're editing. In general, we
|
||||
try to follow the rules below.
|
||||
|
||||
**Note: this file uses spaces due to markdown rendering issues for tabs.
|
||||
Code must be implemented using tabs.**
|
||||
|
||||
- indent with tabs, and a tab is always 8 characters wide
|
||||
- opening braces are on the same line as the if statement;
|
||||
- no braces in an if-body with just one statement;
|
||||
- if one of the branches of an if-else condition has braces, then the
|
||||
other branch should also have braces;
|
||||
- there is always an empty line between variable declarations and the
|
||||
code;
|
||||
|
||||
```c
|
||||
static int
|
||||
my_function(void)
|
||||
{
|
||||
int a = 0;
|
||||
|
||||
if (a)
|
||||
b();
|
||||
else
|
||||
c();
|
||||
|
||||
if (a) {
|
||||
b();
|
||||
c();
|
||||
} else {
|
||||
d();
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
- lines should be less than 80 characters wide;
|
||||
- when breaking lines with functions calls, the parameters are aligned
|
||||
with the opening parentheses;
|
||||
- when assigning a variable with the result of a function call, if the
|
||||
line would be longer we break it around the equal '=' sign if it makes
|
||||
sense;
|
||||
|
||||
```c
|
||||
long_variable_name =
|
||||
function_with_a_really_long_name(parameter1, parameter2,
|
||||
parameter3, parameter4);
|
||||
|
||||
x = function_with_a_really_long_name(parameter1, parameter2,
|
||||
parameter3, parameter4);
|
||||
```
|
||||
|
||||
Conduct
|
||||
=======
|
||||
|
||||
As a freedesktop.org project, Wayland follows the Contributor Covenant,
|
||||
found at:
|
||||
https://www.freedesktop.org/wiki/CodeOfConduct
|
||||
|
||||
Please conduct yourself in a respectful and civilised manner when
|
||||
interacting with community members on mailing lists, IRC, or bug
|
||||
trackers. The community represents the project as a whole, and abusive
|
||||
or bullying behaviour is not tolerated by the project.
|
||||
|
||||
|
||||
Licensing
|
||||
=========
|
||||
|
||||
Wayland is licensed with the intention to be usable anywhere X.org is.
|
||||
Originally, X.org was covered under the MIT X11 license, but changed to
|
||||
the MIT Expat license. Similarly, Wayland was covered initially as MIT
|
||||
X11 licensed, but changed to the MIT Expat license, following in X.org's
|
||||
footsteps. Other than wording, the two licenses are substantially the
|
||||
same, with the exception of a no-advertising clause in X11 not included
|
||||
in Expat.
|
||||
|
||||
New source code files should specify the MIT Expat license in their
|
||||
boilerplate, as part of the copyright statement.
|
||||
|
||||
|
||||
Review
|
||||
======
|
||||
|
||||
All patches, even trivial ones, require at least one positive review
|
||||
(Reviewed-by). Additionally, if no Reviewed-by's have been given by
|
||||
people with commit access, there needs to be at least one Acked-by from
|
||||
someone with commit access. A person with commit access is expected to be
|
||||
able to evaluate the patch with respect to the project scope and architecture.
|
||||
|
||||
The below review guidelines are intended to be interpreted in spirit, not by
|
||||
the letter. There may be circumstances where some guidelines are better
|
||||
ignored. We rely very much on the judgement of reviewers and commit rights
|
||||
holders.
|
||||
|
||||
During review, the following matters should be checked:
|
||||
|
||||
- The commit message explains why the change is being made.
|
||||
|
||||
- The code fits the project's scope.
|
||||
|
||||
- The code license is the same MIT licence the project generally uses.
|
||||
|
||||
- Stable ABI or API is not broken.
|
||||
|
||||
- Stable ABI or API additions must be justified by actual use cases, not only
|
||||
by speculation. They must also be documented, and it is strongly recommended to
|
||||
include tests exercising the additions in the test suite.
|
||||
|
||||
- The code fits the existing software architecture, e.g. no layering
|
||||
violations.
|
||||
|
||||
- The code is correct and does not introduce new failures for existing users,
|
||||
does not add new corner-case bugs, and does not introduce new compiler
|
||||
warnings.
|
||||
|
||||
- The patch does what it says in the commit message and changes nothing else.
|
||||
|
||||
- The patch is a single logical change. If the commit message addresses
|
||||
multiple points, it is a hint that the commit might need splitting up.
|
||||
|
||||
- A bug fix should target the underlying root cause instead of hiding symptoms.
|
||||
If a complete fix is not practical, partial fixes are acceptable if they come
|
||||
with code comments and filed Gitlab issues for the remaining bugs.
|
||||
|
||||
- The bug root cause rule applies to external software components as well, e.g.
|
||||
do not work around kernel driver issues in userspace.
|
||||
|
||||
- The test suite passes.
|
||||
|
||||
- The code does not depend on API or ABI which has no working free open source
|
||||
implementation.
|
||||
|
||||
- The code is not dead or untestable. E.g. if there are no free open source
|
||||
software users for it then it is effectively dead code.
|
||||
|
||||
- The code is written to be easy to understand, or if code cannot be clear
|
||||
enough on its own there are code comments to explain it.
|
||||
|
||||
- The code is minimal, i.e. prefer refactor and re-use when possible unless
|
||||
clarity suffers.
|
||||
|
||||
- The code adheres to the style guidelines.
|
||||
|
||||
- In a patch series, every intermediate step adheres to the above guidelines.
|
||||
|
||||
|
||||
Commit rights
|
||||
=============
|
||||
|
||||
Commit rights will be granted to anyone who requests them and fulfills the
|
||||
below criteria:
|
||||
|
||||
- Submitted some (10 as a rule of thumb) non-trivial (not just simple
|
||||
spelling fixes and whitespace adjustment) patches that have been merged
|
||||
already.
|
||||
|
||||
- Are actively participating in public discussions about their work (on the
|
||||
mailing list or IRC). This should not be interpreted as a requirement to
|
||||
review other peoples patches but just make sure that patch submission isn't
|
||||
one-way communication. Cross-review is still highly encouraged.
|
||||
|
||||
- Will be regularly contributing further patches. This includes regular
|
||||
contributors to other parts of the open source graphics stack who only
|
||||
do the occasional development in this project.
|
||||
|
||||
- Agrees to use their commit rights in accordance with the documented merge
|
||||
criteria, tools, and processes.
|
||||
|
||||
To apply for commit rights, create a new issue in gitlab for the respective
|
||||
project and give it the "accounts" label.
|
||||
|
||||
Committers are encouraged to request their commit rights get removed when they
|
||||
no longer contribute to the project. Commit rights will be reinstated when they
|
||||
come back to the project.
|
||||
|
||||
Maintainers and committers should encourage contributors to request commit
|
||||
rights, especially junior contributors tend to underestimate their skills.
|
||||
|
||||
|
||||
Stabilising for releases
|
||||
========================
|
||||
|
||||
A release cycle ends with a stable release which also starts a new cycle and
|
||||
lifts any code freezes. Gradual code freezing towards a stable release starts
|
||||
with an alpha release. The release stages of a cycle are:
|
||||
|
||||
- **Alpha release**:
|
||||
Signified by version number #.#.91.
|
||||
Major features must have landed before this. Major features include
|
||||
invasive code motion and refactoring, high risk changes, and new stable
|
||||
library ABI.
|
||||
|
||||
- **Beta release**:
|
||||
Signified by version number #.#.92.
|
||||
Minor features must have landed before this. Minor features include all
|
||||
new features that are not major, low risk changes, clean-ups, and
|
||||
documentation. Stable ABI that was new in the alpha release can be removed
|
||||
before a beta release if necessary.
|
||||
|
||||
- **Release candidates (RC)**:
|
||||
Signified by version number #.#.93 and up to #.#.99.
|
||||
Bug fixes that are not release critical must have landed before this.
|
||||
Release critical bug fixes can still be landed after this, but they may
|
||||
call for another RC.
|
||||
|
||||
- **Stable release**:
|
||||
Signified by version number #.#.0.
|
||||
Ideally no changes since the last RC.
|
||||
|
||||
Mind that version #.#.90 is never released. It is used during development when
|
||||
no code freeze is in effect. Stable branches and point releases are not covered
|
||||
by the above.
|
||||
|
||||
|
||||
[git documentation]: http://git-scm.com/documentation
|
||||
[notes on commit messages]: http://who-t.blogspot.de/2009/12/on-commit-messages.html
|
||||
39
COPYING
39
COPYING
|
|
@ -3,27 +3,20 @@ Copyright © 2010-2012 Intel Corporation
|
|||
Copyright © 2011 Benjamin Franzke
|
||||
Copyright © 2012 Collabora, Ltd.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and associated documentation files (the "Software"),
|
||||
to deal in the Software without restriction, including without limitation
|
||||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||
and/or sell copies of the Software, and to permit persons to whom the
|
||||
Software is furnished to do so, subject to the following conditions:
|
||||
Permission to use, copy, modify, distribute, and sell this software and its
|
||||
documentation for any purpose is hereby granted without fee, provided that
|
||||
the above copyright notice appear in all copies and that both that copyright
|
||||
notice and this permission notice appear in supporting documentation, and
|
||||
that the name of the copyright holders not be used in advertising or
|
||||
publicity pertaining to distribution of the software without specific,
|
||||
written prior permission. The copyright holders make no representations
|
||||
about the suitability of this software for any purpose. It is provided "as
|
||||
is" without express or implied warranty.
|
||||
|
||||
The above copyright notice and this permission notice (including the next
|
||||
paragraph) shall be included in all copies or substantial portions of the
|
||||
Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.
|
||||
|
||||
---
|
||||
|
||||
The above is the version of the MIT "Expat" License used by X.org:
|
||||
|
||||
http://cgit.freedesktop.org/xorg/xserver/tree/COPYING
|
||||
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
OF THIS SOFTWARE.
|
||||
|
|
|
|||
198
Makefile.am
Normal file
198
Makefile.am
Normal file
|
|
@ -0,0 +1,198 @@
|
|||
if BUILD_DOCS
|
||||
SUBDIRS = doc
|
||||
endif
|
||||
|
||||
ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
|
||||
|
||||
aclocaldir = $(datadir)/aclocal
|
||||
dist_aclocal_DATA = wayland-scanner.m4
|
||||
|
||||
dist_pkgdata_DATA = \
|
||||
wayland-scanner.mk \
|
||||
protocol/wayland.xml \
|
||||
protocol/wayland.dtd
|
||||
|
||||
pkgconfigdir = $(libdir)/pkgconfig
|
||||
pkgconfig_DATA =
|
||||
|
||||
lib_LTLIBRARIES = libwayland-server.la libwayland-client.la
|
||||
noinst_LTLIBRARIES = libwayland-util.la
|
||||
|
||||
include_HEADERS = \
|
||||
src/wayland-util.h \
|
||||
src/wayland-server.h \
|
||||
src/wayland-client.h \
|
||||
src/wayland-egl.h \
|
||||
src/wayland-version.h
|
||||
|
||||
nodist_include_HEADERS = \
|
||||
protocol/wayland-server-protocol.h \
|
||||
protocol/wayland-client-protocol.h
|
||||
|
||||
libwayland_util_la_SOURCES = \
|
||||
src/connection.c \
|
||||
src/wayland-util.c \
|
||||
src/wayland-util.h \
|
||||
src/wayland-os.c \
|
||||
src/wayland-os.h \
|
||||
src/wayland-private.h
|
||||
|
||||
libwayland_server_la_CFLAGS = $(FFI_CFLAGS) $(GCC_CFLAGS) -pthread
|
||||
libwayland_server_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt -lm
|
||||
libwayland_server_la_LDFLAGS = -version-info 1:0:1
|
||||
libwayland_server_la_SOURCES = \
|
||||
src/wayland-server.c \
|
||||
src/wayland-shm.c \
|
||||
src/event-loop.c
|
||||
|
||||
nodist_libwayland_server_la_SOURCES = \
|
||||
protocol/wayland-server-protocol.h \
|
||||
protocol/wayland-protocol.c
|
||||
|
||||
libwayland_client_la_CFLAGS = $(FFI_CFLAGS) $(GCC_CFLAGS) -pthread
|
||||
libwayland_client_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt -lm
|
||||
libwayland_client_la_LDFLAGS = -version-info 3:0:3
|
||||
libwayland_client_la_SOURCES = \
|
||||
src/wayland-client.c
|
||||
|
||||
nodist_libwayland_client_la_SOURCES = \
|
||||
protocol/wayland-client-protocol.h \
|
||||
protocol/wayland-protocol.c
|
||||
|
||||
pkgconfig_DATA += src/wayland-client.pc src/wayland-server.pc
|
||||
|
||||
if ENABLE_SCANNER
|
||||
wayland_scanner = $(top_builddir)/wayland-scanner
|
||||
bin_PROGRAMS = wayland-scanner
|
||||
wayland_scanner_SOURCES = src/scanner.c
|
||||
wayland_scanner_LDADD = $(EXPAT_LIBS) libwayland-util.la
|
||||
$(BUILT_SOURCES) : wayland-scanner
|
||||
pkgconfig_DATA += src/wayland-scanner.pc
|
||||
else
|
||||
wayland_scanner = wayland-scanner
|
||||
endif
|
||||
|
||||
protocol/%-protocol.c : $(top_srcdir)/protocol/%.xml
|
||||
$(AM_V_GEN)$(MKDIR_P) $(dir $@) && $(wayland_scanner) code < $< > $@
|
||||
|
||||
protocol/%-server-protocol.h : $(top_srcdir)/protocol/%.xml
|
||||
$(AM_V_GEN)$(MKDIR_P) $(dir $@) && $(wayland_scanner) server-header < $< > $@
|
||||
|
||||
protocol/%-client-protocol.h : $(top_srcdir)/protocol/%.xml
|
||||
$(AM_V_GEN)$(MKDIR_P) $(dir $@) && $(wayland_scanner) client-header < $< > $@
|
||||
|
||||
BUILT_SOURCES = \
|
||||
$(nodist_libwayland_server_la_SOURCES) \
|
||||
$(nodist_libwayland_client_la_SOURCES)
|
||||
|
||||
CLEANFILES = $(BUILT_SOURCES)
|
||||
DISTCLEANFILES = src/wayland-version.h
|
||||
EXTRA_DIST = src/wayland-version.h.in
|
||||
|
||||
|
||||
|
||||
lib_LTLIBRARIES += libwayland-cursor.la
|
||||
|
||||
include_HEADERS += cursor/wayland-cursor.h
|
||||
|
||||
libwayland_cursor_la_SOURCES = \
|
||||
cursor/wayland-cursor.c \
|
||||
cursor/os-compatibility.c \
|
||||
cursor/os-compatibility.h \
|
||||
cursor/cursor-data.h \
|
||||
cursor/xcursor.c \
|
||||
cursor/xcursor.h
|
||||
libwayland_cursor_la_LIBADD = libwayland-client.la
|
||||
|
||||
pkgconfig_DATA += cursor/wayland-cursor.pc
|
||||
|
||||
libwayland_cursor_la_CFLAGS = \
|
||||
$(GCC_CFLAGS) \
|
||||
-I$(top_builddir)/src \
|
||||
-I$(top_srcdir)/src \
|
||||
-DICONDIR=\"$(ICONDIR)\"
|
||||
|
||||
|
||||
TESTS = \
|
||||
array-test \
|
||||
client-test \
|
||||
display-test \
|
||||
connection-test \
|
||||
event-loop-test \
|
||||
fixed-test \
|
||||
list-test \
|
||||
map-test \
|
||||
os-wrappers-test \
|
||||
sanity-test \
|
||||
socket-test \
|
||||
queue-test \
|
||||
signal-test \
|
||||
resources-test \
|
||||
message-test
|
||||
|
||||
check_PROGRAMS = \
|
||||
$(TESTS) \
|
||||
exec-fd-leak-checker
|
||||
|
||||
noinst_PROGRAMS = \
|
||||
fixed-benchmark
|
||||
|
||||
check_LTLIBRARIES = libtest-runner.la
|
||||
|
||||
libtest_runner_la_SOURCES = \
|
||||
tests/test-runner.c \
|
||||
tests/test-runner.h \
|
||||
tests/test-helpers.c \
|
||||
tests/test-compositor.h \
|
||||
tests/test-compositor.c
|
||||
libtest_runner_la_LIBADD = \
|
||||
libwayland-util.la \
|
||||
libwayland-client.la \
|
||||
libwayland-server.la \
|
||||
-lrt -ldl $(FFI_LIBS)
|
||||
|
||||
|
||||
array_test_SOURCES = tests/array-test.c
|
||||
array_test_LDADD = libtest-runner.la
|
||||
client_test_SOURCES = tests/client-test.c
|
||||
client_test_LDADD = libtest-runner.la
|
||||
display_test_SOURCES = tests/display-test.c
|
||||
display_test_LDADD = libtest-runner.la
|
||||
connection_test_SOURCES = tests/connection-test.c
|
||||
connection_test_LDADD = libtest-runner.la
|
||||
event_loop_test_SOURCES = tests/event-loop-test.c
|
||||
event_loop_test_LDADD = libtest-runner.la
|
||||
fixed_test_SOURCES = tests/fixed-test.c
|
||||
fixed_test_LDADD = libtest-runner.la
|
||||
list_test_SOURCES = tests/list-test.c
|
||||
list_test_LDADD = libtest-runner.la
|
||||
map_test_SOURCES = tests/map-test.c
|
||||
map_test_LDADD = libtest-runner.la
|
||||
sanity_test_SOURCES = tests/sanity-test.c
|
||||
sanity_test_LDADD = libtest-runner.la
|
||||
socket_test_SOURCES = tests/socket-test.c
|
||||
socket_test_LDADD = libtest-runner.la
|
||||
queue_test_SOURCES = tests/queue-test.c
|
||||
queue_test_LDADD = libtest-runner.la
|
||||
signal_test_SOURCES = tests/signal-test.c
|
||||
signal_test_LDADD = libtest-runner.la
|
||||
resources_test_SOURCES = tests/resources-test.c
|
||||
resources_test_LDADD = libtest-runner.la
|
||||
message_test_SOURCES = tests/message-test.c
|
||||
message_test_LDADD = libtest-runner.la
|
||||
|
||||
fixed_benchmark_SOURCES = tests/fixed-benchmark.c
|
||||
fixed_benchmark_LDADD = libtest-runner.la
|
||||
|
||||
os_wrappers_test_SOURCES = tests/os-wrappers-test.c
|
||||
os_wrappers_test_LDADD = libtest-runner.la
|
||||
|
||||
AM_CPPFLAGS = \
|
||||
-I$(top_builddir)/src \
|
||||
-I$(top_srcdir)/src \
|
||||
-I$(top_builddir)/protocol
|
||||
|
||||
AM_CFLAGS = $(GCC_CFLAGS) $(FFI_CFLAGS)
|
||||
|
||||
exec_fd_leak_checker_SOURCES = tests/exec-fd-leak-checker.c
|
||||
exec_fd_leak_checker_LDADD = libtest-runner.la
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
# Wayland
|
||||
What is Wayland
|
||||
|
||||
Wayland is a project to define a protocol for a compositor to talk to
|
||||
its clients as well as a library implementation of the protocol. The
|
||||
|
|
@ -17,14 +17,19 @@ protocol does not handle rendering, which is one of the features that
|
|||
makes wayland so simple. All clients are expected to handle rendering
|
||||
themselves, typically through cairo or OpenGL.
|
||||
|
||||
The weston compositor is a reference implementation of a wayland
|
||||
compositor and the weston repository also includes a few example
|
||||
clients.
|
||||
|
||||
Building the wayland libraries is fairly simple, aside from libffi,
|
||||
they don't have many dependencies:
|
||||
|
||||
$ git clone https://gitlab.freedesktop.org/wayland/wayland
|
||||
$ git clone git://anongit.freedesktop.org/wayland/wayland
|
||||
$ cd wayland
|
||||
$ meson build/ --prefix=PREFIX
|
||||
$ ninja -C build/ install
|
||||
$ ./autogen.sh --prefix=PREFIX
|
||||
$ make
|
||||
$ make install
|
||||
|
||||
where PREFIX is where you want to install the libraries.
|
||||
|
||||
See https://wayland.freedesktop.org for documentation.
|
||||
where PREFIX is where you want to install the libraries. See
|
||||
http://wayland.freedesktop.org for more complete build instructions
|
||||
for wayland, weston, xwayland and various toolkits.
|
||||
149
TODO
Normal file
149
TODO
Normal file
|
|
@ -0,0 +1,149 @@
|
|||
Core wayland protocol
|
||||
|
||||
- Maybe try to make remote wayland actually happen, to see if there
|
||||
is something in the protocol/architecture that makes it harder than
|
||||
it should be.
|
||||
|
||||
ICCCM
|
||||
|
||||
- mime-type guidelines for data_source (ie, both dnd and selection):
|
||||
recommended types for text or images, types that a clipboard
|
||||
manager must support, mime-types must be listed in preferred order
|
||||
|
||||
- we need a "no kb focus please" mechanism. Or should this be
|
||||
implicit in a specific surface type?
|
||||
|
||||
EWMH
|
||||
|
||||
- configure should provide dx_left, dx_right, dy_top, dy_bottom, or
|
||||
dx, dy, width and height.
|
||||
|
||||
- move to workspace, keep on top, on all workspaces, minimize etc
|
||||
requests for implementing client side window menu? or just make a
|
||||
"show window menu" request to let the compositor display and manage
|
||||
a popup window?
|
||||
|
||||
- window move and resize functionality for kb and touch.
|
||||
|
||||
- Protocol for specifying title bar rectangle (for moving
|
||||
unresponsive apps). Rectangle for close button, so we can popup
|
||||
force-close dialog if application doesn't respond to ping event
|
||||
when user clicks there. We could use the region mechanism here
|
||||
too.
|
||||
|
||||
- popup placement protocol logic.
|
||||
|
||||
- subsurface mechanism. we need this for cases where we would use an
|
||||
X subwindow for gl or video other different visual type.
|
||||
|
||||
EGL/gbm
|
||||
|
||||
- Land Robert Braggs EGL extensions: frame age, swap with damage
|
||||
|
||||
- Make it possible to share buffers from compositor to clients.
|
||||
Tricky part here is how to indicate to EGL on the server side that
|
||||
it should make an EGLImage available to a client. We'll need a
|
||||
"create a wl_buffer for this EGLImage for this client" kind of
|
||||
entry point.
|
||||
|
||||
- Protocol for arbitrating access to scanout buffers (physically
|
||||
contiguous memory). When a client goes fullscreen (or ideally as
|
||||
the compositor starts the animation that will make it fullscreen)
|
||||
we send a "give up your scanout buffer" to the current fullscreen
|
||||
client (if any) and when the client acks that we send a "try to
|
||||
allocate a scanout buffer now" event to the fullscreen-to-be
|
||||
client.
|
||||
|
||||
|
||||
Misc
|
||||
|
||||
- glyph cache
|
||||
|
||||
- Needs a mechanism to pass buffers to client.
|
||||
|
||||
buffer = drm.create_buffer(); /* buffer with stuff in it */
|
||||
|
||||
cache.upload(buffer, x, y, width, height, int hash)
|
||||
|
||||
drm.buffer: id, name, stride etc /* event to announce cache buffer */
|
||||
|
||||
cache.image: hash, buffer, x, y, stride /* event to announce
|
||||
* location in cache */
|
||||
|
||||
cache.reject: hash /* no upload for you! */
|
||||
|
||||
cache.retire: buffer /* cache has stopped using buffer, please
|
||||
* reupload whatever you had in that buffer */
|
||||
|
||||
- A "please suspend" event from the compositor, to indicate to an
|
||||
application that it's no longer visible/active. Or maybe discard
|
||||
buffer, as in "wayland discarded your buffer, it's no longer
|
||||
visible, you can stop updating it now.", reattach, as in "oh hey,
|
||||
I'm about to show your buffer that I threw away, what was it
|
||||
again?". for wayland system compositor vt switcing, for example,
|
||||
to be able to throw away the surfaces in the session we're
|
||||
switching away from. for minimized windows that we don't want live
|
||||
thumb nails for. etc.
|
||||
|
||||
|
||||
Clients and ports
|
||||
|
||||
- port gtk+
|
||||
|
||||
- draw window decorations in gtkwindow.c
|
||||
|
||||
- Details about pointer grabs. wayland doesn't have active grabs,
|
||||
menus will behave subtly different. Under X, clicking a menu
|
||||
open grabs the pointer and clicking outside the window pops down
|
||||
the menu and swallows the click. without active grabs we can't
|
||||
swallow the click. I'm sure there much more...
|
||||
|
||||
- dnd, copy-paste
|
||||
|
||||
- Investigate DirectFB on Wayland (or is that Wayland on DirectFB?)
|
||||
|
||||
- SDL port, bnf has work in progress here:
|
||||
http://cgit.freedesktop.org/~bnf/sdl-wayland/
|
||||
|
||||
|
||||
Ideas
|
||||
|
||||
- A wayland settings protocol to tell clients about themes (icons,
|
||||
cursors, widget themes), fonts details (family, hinting
|
||||
preferences) etc. Just send all settings at connect time, send
|
||||
updates when a setting change. Getting a little close to gconf
|
||||
here, but could be pretty simple:
|
||||
|
||||
interface "settings":
|
||||
event int_value(string name, int value)
|
||||
event string_value(string name, string value)
|
||||
|
||||
but maybe it's better to just require that clients get that from
|
||||
somewhere else (gconf/dbus).
|
||||
|
||||
|
||||
Crazy ideas
|
||||
|
||||
- AF_WAYLAND - A new socket type. Eliminate compositor context
|
||||
switch by making kernel understand enough of wayland that it can
|
||||
forward input events as wayland events and do page flipping in
|
||||
response to surface_attach requests:
|
||||
|
||||
- ioctl(wayland_fd, "surface_attach to object 5 should do a kms page
|
||||
flip on ctrc 2");
|
||||
|
||||
- what about multiple crtcs? what about frame event for other
|
||||
clients?
|
||||
|
||||
- forward these input devices to the client
|
||||
|
||||
- "scancode 124 pressed or released with scan codes 18,22 and 30
|
||||
held down gives control back to userspace wayland.
|
||||
|
||||
- what about maintaining cursor position? what about pointer
|
||||
acceleration? maybe this only works in "client cursor mode",
|
||||
where wayland hides the cursor and only sends relative events?
|
||||
Solves the composited cursor problem. How does X show its
|
||||
cursor then?
|
||||
|
||||
- Probably not worth it.
|
||||
9
autogen.sh
Executable file
9
autogen.sh
Executable file
|
|
@ -0,0 +1,9 @@
|
|||
#! /bin/sh
|
||||
|
||||
test -n "$srcdir" || srcdir=`dirname "$0"`
|
||||
test -n "$srcdir" || srcdir=.
|
||||
(
|
||||
cd "$srcdir" &&
|
||||
autoreconf --force -v --install
|
||||
) || exit
|
||||
test -n "$NOCONFIGURE" || "$srcdir/configure" "$@"
|
||||
143
configure.ac
Normal file
143
configure.ac
Normal file
|
|
@ -0,0 +1,143 @@
|
|||
AC_PREREQ([2.64])
|
||||
|
||||
m4_define([wayland_major_version], [1])
|
||||
m4_define([wayland_minor_version], [6])
|
||||
m4_define([wayland_micro_version], [0])
|
||||
m4_define([wayland_version],
|
||||
[wayland_major_version.wayland_minor_version.wayland_micro_version])
|
||||
|
||||
AC_INIT([wayland],
|
||||
[wayland_version],
|
||||
[https://bugs.freedesktop.org/enter_bug.cgi?product=Wayland&component=wayland&version=wayland_version],
|
||||
[wayland],
|
||||
[http://wayland.freedesktop.org/])
|
||||
|
||||
AC_SUBST([WAYLAND_VERSION_MAJOR], [wayland_major_version])
|
||||
AC_SUBST([WAYLAND_VERSION_MINOR], [wayland_minor_version])
|
||||
AC_SUBST([WAYLAND_VERSION_MICRO], [wayland_micro_version])
|
||||
AC_SUBST([WAYLAND_VERSION], [wayland_version])
|
||||
|
||||
AC_CONFIG_HEADERS([config.h])
|
||||
AC_CONFIG_MACRO_DIR([m4])
|
||||
|
||||
AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz subdir-objects])
|
||||
|
||||
AM_SILENT_RULES([yes])
|
||||
|
||||
# Check for programs
|
||||
AC_PROG_CC
|
||||
|
||||
# Initialize libtool
|
||||
LT_PREREQ([2.2])
|
||||
LT_INIT
|
||||
|
||||
PKG_PROG_PKG_CONFIG()
|
||||
PKG_CHECK_MODULES(FFI, [libffi])
|
||||
|
||||
if test "x$GCC" = "xyes"; then
|
||||
GCC_CFLAGS="-Wall -Wextra -Wno-unused-parameter -g -Wstrict-prototypes -Wmissing-prototypes -fvisibility=hidden"
|
||||
fi
|
||||
AC_SUBST(GCC_CFLAGS)
|
||||
|
||||
AC_CHECK_FUNCS([accept4 mkostemp posix_fallocate])
|
||||
|
||||
AC_CHECK_DECL(SFD_CLOEXEC,[],
|
||||
[AC_MSG_ERROR("SFD_CLOEXEC is needed to compile wayland")],
|
||||
[[#include <sys/signalfd.h>]])
|
||||
AC_CHECK_DECL(TFD_CLOEXEC,[],
|
||||
[AC_MSG_ERROR("TFD_CLOEXEC is needed to compile wayland")],
|
||||
[[#include <sys/timerfd.h>]])
|
||||
AC_CHECK_DECL(CLOCK_MONOTONIC,[],
|
||||
[AC_MSG_ERROR("CLOCK_MONOTONIC is needed to compile wayland")],
|
||||
[[#include <time.h>]])
|
||||
AC_CHECK_HEADERS([execinfo.h])
|
||||
|
||||
AC_ARG_ENABLE([scanner],
|
||||
[AC_HELP_STRING([--disable-scanner],
|
||||
[Disable compilation of wayland-scanner])],
|
||||
[],
|
||||
[enable_scanner=yes])
|
||||
|
||||
AC_ARG_ENABLE([documentation],
|
||||
[AC_HELP_STRING([--disable-documentation],
|
||||
[Disable building the documentation])],
|
||||
[],
|
||||
[enable_documentation=yes])
|
||||
|
||||
AM_CONDITIONAL(ENABLE_SCANNER, test "x$enable_scanner" = xyes)
|
||||
|
||||
AC_ARG_WITH(icondir, [ --with-icondir=<dir> Look for cursor icons here],
|
||||
[ ICONDIR=$withval],
|
||||
[ ICONDIR=${datadir}/icons])
|
||||
AC_SUBST([ICONDIR])
|
||||
|
||||
EXPAT_LIB=""
|
||||
AC_ARG_WITH(expat, [ --with-expat=<dir> Use expat from here],
|
||||
[ expat=$withval
|
||||
CPPFLAGS="$CPPFLAGS -I$withval/include"
|
||||
LDFLAGS="$LDFLAGS -L$withval/lib" ] )
|
||||
if test "x$enable_scanner" = "xyes"; then
|
||||
AC_CHECK_HEADERS(expat.h, [AC_DEFINE(HAVE_EXPAT_H)],
|
||||
[AC_MSG_ERROR([Can't find expat.h. Please install expat.])])
|
||||
AC_CHECK_LIB(expat, XML_ParserCreate, [EXPAT_LIBS="-lexpat"],
|
||||
[AC_MSG_ERROR([Can't find expat library. Please install expat.])])
|
||||
AC_SUBST(EXPAT_LIBS)
|
||||
fi
|
||||
|
||||
AC_PATH_PROG(XSLTPROC, xsltproc)
|
||||
AM_CONDITIONAL([HAVE_XSLTPROC], [test "x$XSLTPROC" != "x"])
|
||||
|
||||
AC_MSG_CHECKING([for docbook manpages stylesheet])
|
||||
MANPAGES_STYLESHEET=http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl
|
||||
AC_PATH_PROGS_FEATURE_CHECK([XSLTPROC_TMP], [xsltproc],
|
||||
AS_IF([`"$ac_path_XSLTPROC_TMP" --nonet "$MANPAGES_STYLESHEET" > /dev/null 2>&1`],
|
||||
[HAVE_MANPAGES_STYLESHEET=yes]))
|
||||
if test "x$HAVE_MANPAGES_STYLESHEET" = "xyes"; then
|
||||
AM_CONDITIONAL([HAVE_MANPAGES_STYLESHEET], true)
|
||||
AC_SUBST(MANPAGES_STYLESHEET)
|
||||
AC_MSG_RESULT([yes])
|
||||
else
|
||||
AM_CONDITIONAL([HAVE_MANPAGES_STYLESHEET], false)
|
||||
AC_MSG_RESULT([no])
|
||||
fi
|
||||
|
||||
AM_CONDITIONAL(BUILD_DOCS, [test x$enable_documentation = xyes])
|
||||
if test "x$enable_documentation" = "xyes"; then
|
||||
AC_PATH_PROG(DOXYGEN, doxygen)
|
||||
|
||||
if test "x$DOXYGEN" = "x"; then
|
||||
AC_MSG_ERROR([Documentation build requested but doxygen not found. Install doxygen or disable the documentation using --disable-documentation])
|
||||
fi
|
||||
|
||||
AC_PATH_PROG(PUBLICAN, publican)
|
||||
|
||||
if test "x$PUBLICAN" != "x"; then
|
||||
PUBLICAN_VERSION=[`$PUBLICAN -v | sed -e 's/version=v\?\([0-9]*\.[0-9]*\).*/\1/'`]
|
||||
|
||||
if test [ 1 -eq `echo "${PUBLICAN_VERSION} < 2.8" | bc` ]; then
|
||||
AC_MSG_ERROR([Publican version is not supported. Install publican >= 2.8 or disable the documentation using --disable-documentation])
|
||||
fi
|
||||
fi
|
||||
|
||||
AC_CONFIG_FILES([
|
||||
doc/doxygen/wayland.doxygen
|
||||
])
|
||||
|
||||
fi
|
||||
AM_CONDITIONAL([HAVE_PUBLICAN], [test "x$PUBLICAN" != "x"])
|
||||
|
||||
AC_CONFIG_FILES([Makefile
|
||||
cursor/wayland-cursor.pc
|
||||
cursor/wayland-cursor-uninstalled.pc
|
||||
doc/Makefile
|
||||
doc/publican/Makefile
|
||||
doc/doxygen/Makefile
|
||||
doc/man/Makefile
|
||||
src/wayland-server-uninstalled.pc
|
||||
src/wayland-client-uninstalled.pc
|
||||
src/wayland-scanner-uninstalled.pc
|
||||
src/wayland-server.pc
|
||||
src/wayland-client.pc
|
||||
src/wayland-scanner.pc
|
||||
src/wayland-version.h])
|
||||
AC_OUTPUT
|
||||
|
|
@ -1,26 +1,23 @@
|
|||
/*
|
||||
* Copyright © 2012 Philipp Brüschweiler
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that copyright
|
||||
* notice and this permission notice appear in supporting documentation, and
|
||||
* that the name of the copyright holders not be used in advertising or
|
||||
* publicity pertaining to distribution of the software without specific,
|
||||
* written prior permission. The copyright holders make no representations
|
||||
* about the suitability of this software for any purpose. It is provided "as
|
||||
* is" without express or implied warranty.
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial
|
||||
* portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
* OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
/*
|
||||
|
|
@ -29,6 +26,7 @@
|
|||
* http://fontforge.org/pcf-format.html
|
||||
*/
|
||||
|
||||
#include <assert.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
|
|
@ -332,38 +330,30 @@ reconstruct_glyph(struct glyph *cursor, struct glyph *mask, char *name,
|
|||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Originally from
|
||||
* http://cgit.freedesktop.org/xorg/lib/libXfont/tree/src/builtins/fonts.c
|
||||
* Changed to the MIT "Expat" style license for Wayland..
|
||||
*/
|
||||
/* From http://cgit.freedesktop.org/xorg/lib/libXfont/tree/src/builtins/fonts.c */
|
||||
static const char cursor_licence[] =
|
||||
"/*\n"
|
||||
"* Copyright 1999 SuSE, Inc.\n"
|
||||
"*\n"
|
||||
"* Permission is hereby granted, free of charge, to any person obtaining\n"
|
||||
"* a copy of this software and associated documentation files (the\n"
|
||||
"* \"Software\"), to deal in the Software without restriction, including\n"
|
||||
"* without limitation the rights to use, copy, modify, merge, publish,\n"
|
||||
"* distribute, sublicense, and/or sell copies of the Software, and to\n"
|
||||
"* permit persons to whom the Software is furnished to do so, subject to\n"
|
||||
"* the following conditions:\n"
|
||||
"*\n"
|
||||
"* The above copyright notice and this permission notice (including the\n"
|
||||
"* next paragraph) shall be included in all copies or substantial\n"
|
||||
"* portions of the Software.\n"
|
||||
"*\n"
|
||||
"* THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\n"
|
||||
"* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n"
|
||||
"* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\n"
|
||||
"* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS\n"
|
||||
"* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN\n"
|
||||
"* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\n"
|
||||
"* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n"
|
||||
"* SOFTWARE.\n"
|
||||
"*\n"
|
||||
"* Author: Keith Packard, SuSE, Inc.\n"
|
||||
"*/\n";
|
||||
"* Copyright 1999 SuSE, Inc.\n"
|
||||
"*\n"
|
||||
"* Permission to use, copy, modify, distribute, and sell this software and its\n"
|
||||
"* documentation for any purpose is hereby granted without fee, provided that\n"
|
||||
"* the above copyright notice appear in all copies and that both that\n"
|
||||
"* copyright notice and this permission notice appear in supporting\n"
|
||||
"* documentation, and that the name of SuSE not be used in advertising or\n"
|
||||
"* publicity pertaining to distribution of the software without specific,\n"
|
||||
"* written prior permission. SuSE makes no representations about the\n"
|
||||
"* suitability of this software for any purpose. It is provided \"as is\"\n"
|
||||
"* without express or implied warranty.\n"
|
||||
"*\n"
|
||||
"* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL\n"
|
||||
"* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE\n"
|
||||
"* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES\n"
|
||||
"* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION\n"
|
||||
"* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN\n"
|
||||
"* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.\n"
|
||||
"*\n"
|
||||
"* Author: Keith Packard, SuSE, Inc.\n"
|
||||
"*/\n";
|
||||
|
||||
static void
|
||||
write_output_file(struct reconstructed_glyph *glyphs, int n)
|
||||
|
|
@ -498,11 +488,6 @@ output_interesting_cursors()
|
|||
struct reconstructed_glyph *glyphs =
|
||||
malloc(n * sizeof(*glyphs));
|
||||
|
||||
if (!glyphs) {
|
||||
printf("reconstructed_glyph malloc failed\n");
|
||||
abort();
|
||||
}
|
||||
|
||||
for (i = 0; i < n; ++i) {
|
||||
struct glyph *cursor, *mask;
|
||||
find_cursor_and_mask(interesting_cursors[i].source_name,
|
||||
|
|
|
|||
1055
cursor/cursor-data.h
1055
cursor/cursor-data.h
File diff suppressed because it is too large
Load diff
|
|
@ -1,47 +0,0 @@
|
|||
icondir = get_option('icon_directory')
|
||||
if icondir == ''
|
||||
icondir = join_paths(get_option('prefix'), get_option('datadir'), 'icons')
|
||||
endif
|
||||
|
||||
if wayland_version[0] != '1'
|
||||
# The versioning used for the shared libraries assumes that the major
|
||||
# version of Wayland as a whole will increase to 2 if and only if there
|
||||
# is an ABI break, at which point we should probably bump the SONAME of
|
||||
# all libraries to .so.2. For more details see
|
||||
# https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/177
|
||||
error('We probably need to bump the SONAME of libwayland-cursor')
|
||||
endif
|
||||
|
||||
wayland_cursor = library(
|
||||
'wayland-cursor',
|
||||
sources: [
|
||||
'wayland-cursor.c',
|
||||
'os-compatibility.c',
|
||||
'xcursor.c',
|
||||
],
|
||||
# To avoid an unnecessary SONAME bump, wayland 1.x.y produces
|
||||
# libwayland-cursor.so.0.x.y.
|
||||
version: '.'.join(['0', wayland_version[1], wayland_version[2]]),
|
||||
dependencies: [ wayland_client_dep ],
|
||||
c_args: [ '-DICONDIR="@0@"'.format(icondir) ],
|
||||
install: true,
|
||||
)
|
||||
|
||||
install_headers('wayland-cursor.h')
|
||||
|
||||
pkgconfig.generate(
|
||||
name: 'Wayland Cursor',
|
||||
description: 'Wayland cursor helper library',
|
||||
version: meson.project_version(),
|
||||
libraries: wayland_cursor,
|
||||
filebase: 'wayland-cursor',
|
||||
)
|
||||
|
||||
wayland_cursor_dep = declare_dependency(
|
||||
link_with: wayland_cursor,
|
||||
include_directories: [ root_inc, include_directories('.') ],
|
||||
)
|
||||
|
||||
if meson.version().version_compare('>= 0.54.0')
|
||||
meson.override_dependency('wayland-cursor', wayland_cursor_dep)
|
||||
endif
|
||||
|
|
@ -1,50 +1,35 @@
|
|||
/*
|
||||
* Copyright © 2012 Collabora, Ltd.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that copyright
|
||||
* notice and this permission notice appear in supporting documentation, and
|
||||
* that the name of the copyright holders not be used in advertising or
|
||||
* publicity pertaining to distribution of the software without specific,
|
||||
* written prior permission. The copyright holders make no representations
|
||||
* about the suitability of this software for any purpose. It is provided "as
|
||||
* is" without express or implied warranty.
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial
|
||||
* portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
* OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#define _GNU_SOURCE
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
#include <fcntl.h>
|
||||
#include <errno.h>
|
||||
#include <signal.h>
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#ifdef HAVE_MEMFD_CREATE
|
||||
#include <sys/mman.h>
|
||||
#endif
|
||||
|
||||
/* Fallback to no flag when missing the definition */
|
||||
#ifndef MFD_NOEXEC_SEAL
|
||||
#define MFD_NOEXEC_SEAL 0
|
||||
#endif
|
||||
|
||||
#include "config.h"
|
||||
#include "os-compatibility.h"
|
||||
|
||||
#ifndef HAVE_MKOSTEMP
|
||||
|
|
@ -108,115 +93,53 @@ create_tmpfile_cloexec(char *tmpname)
|
|||
*
|
||||
* If the C library implements posix_fallocate(), it is used to
|
||||
* guarantee that disk space is available for the file at the
|
||||
* given size. If disk space is insufficient, errno is set to ENOSPC.
|
||||
* given size. If disk space is insufficent, errno is set to ENOSPC.
|
||||
* If posix_fallocate() is not supported, program may receive
|
||||
* SIGBUS on accessing mmap()'ed file contents instead.
|
||||
*
|
||||
* If the C library implements memfd_create(), it is used to create the
|
||||
* file purely in memory, without any backing file name on the file
|
||||
* system, and then sealing off the possibility of shrinking it. This
|
||||
* can then be checked before accessing mmap()'ed file contents, to
|
||||
* make sure SIGBUS can't happen. It also avoids requiring
|
||||
* XDG_RUNTIME_DIR.
|
||||
*/
|
||||
int
|
||||
os_create_anonymous_file(off_t size)
|
||||
{
|
||||
static const char template[] = "/wayland-cursor-shared-XXXXXX";
|
||||
static const char template[] = "/weston-shared-XXXXXX";
|
||||
const char *path;
|
||||
char *name;
|
||||
size_t name_size;
|
||||
int fd;
|
||||
int ret;
|
||||
|
||||
#ifdef HAVE_MEMFD_CREATE
|
||||
/*
|
||||
* Linux kernels older than 6.3 reject MFD_NOEXEC_SEAL with EINVAL.
|
||||
* Try first *with* it, and if that fails, try again *without* it.
|
||||
*/
|
||||
errno = 0;
|
||||
fd = memfd_create(
|
||||
"wayland-cursor",
|
||||
MFD_CLOEXEC | MFD_ALLOW_SEALING | MFD_NOEXEC_SEAL);
|
||||
|
||||
if (fd < 0 && errno == EINVAL && MFD_NOEXEC_SEAL != 0) {
|
||||
fd = memfd_create(
|
||||
"wayland-cursor",
|
||||
MFD_CLOEXEC | MFD_ALLOW_SEALING);
|
||||
path = getenv("XDG_RUNTIME_DIR");
|
||||
if (!path) {
|
||||
errno = ENOENT;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (fd >= 0) {
|
||||
/* We can add this seal before calling posix_fallocate(), as
|
||||
* the file is currently zero-sized anyway.
|
||||
*
|
||||
* There is also no need to check for the return value, we
|
||||
* couldn't do anything with it anyway.
|
||||
*/
|
||||
fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
path = getenv("XDG_RUNTIME_DIR");
|
||||
if (!path || path[0] != '/') {
|
||||
errno = ENOENT;
|
||||
return -1;
|
||||
}
|
||||
name = malloc(strlen(path) + sizeof(template));
|
||||
if (!name)
|
||||
return -1;
|
||||
|
||||
name_size = strlen(path) + sizeof(template);
|
||||
name = malloc(name_size);
|
||||
if (!name)
|
||||
return -1;
|
||||
strcpy(name, path);
|
||||
strcat(name, template);
|
||||
|
||||
snprintf(name, name_size, "%s%s", path, template);
|
||||
fd = create_tmpfile_cloexec(name);
|
||||
|
||||
fd = create_tmpfile_cloexec(name);
|
||||
free(name);
|
||||
|
||||
free(name);
|
||||
if (fd < 0)
|
||||
return -1;
|
||||
|
||||
if (fd < 0)
|
||||
return -1;
|
||||
#ifdef HAVE_POSIX_FALLOCATE
|
||||
ret = posix_fallocate(fd, 0, size);
|
||||
if (ret != 0) {
|
||||
close(fd);
|
||||
errno = ret;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (os_resize_anonymous_file(fd, size) < 0) {
|
||||
#else
|
||||
ret = ftruncate(fd, size);
|
||||
if (ret < 0) {
|
||||
close(fd);
|
||||
return -1;
|
||||
}
|
||||
#endif
|
||||
|
||||
return fd;
|
||||
}
|
||||
|
||||
int
|
||||
os_resize_anonymous_file(int fd, off_t size)
|
||||
{
|
||||
#ifdef HAVE_POSIX_FALLOCATE
|
||||
sigset_t mask;
|
||||
sigset_t old_mask;
|
||||
|
||||
/*
|
||||
* posix_fallocate() might be interrupted, so we need to check
|
||||
* for EINTR and retry in that case.
|
||||
* However, in the presence of an alarm, the interrupt may trigger
|
||||
* repeatedly and prevent a large posix_fallocate() to ever complete
|
||||
* successfully, so we need to first block SIGALRM to prevent
|
||||
* this.
|
||||
*/
|
||||
sigemptyset(&mask);
|
||||
sigaddset(&mask, SIGALRM);
|
||||
sigprocmask(SIG_BLOCK, &mask, &old_mask);
|
||||
/*
|
||||
* Filesystems that do not support fallocate will return EINVAL or
|
||||
* EOPNOTSUPP. In this case we need to fall back to ftruncate
|
||||
*/
|
||||
do {
|
||||
errno = posix_fallocate(fd, 0, size);
|
||||
} while (errno == EINTR);
|
||||
sigprocmask(SIG_SETMASK, &old_mask, NULL);
|
||||
if (errno == 0)
|
||||
return 0;
|
||||
else if (errno != EINVAL && errno != EOPNOTSUPP)
|
||||
return -1;
|
||||
#endif
|
||||
if (ftruncate(fd, size) < 0)
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,26 +1,23 @@
|
|||
/*
|
||||
* Copyright © 2012 Collabora, Ltd.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that copyright
|
||||
* notice and this permission notice appear in supporting documentation, and
|
||||
* that the name of the copyright holders not be used in advertising or
|
||||
* publicity pertaining to distribution of the software without specific,
|
||||
* written prior permission. The copyright holders make no representations
|
||||
* about the suitability of this software for any purpose. It is provided "as
|
||||
* is" without express or implied warranty.
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial
|
||||
* portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
* OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef OS_COMPATIBILITY_H
|
||||
|
|
@ -31,7 +28,4 @@
|
|||
int
|
||||
os_create_anonymous_file(off_t size);
|
||||
|
||||
int
|
||||
os_resize_anonymous_file(int fd, off_t size);
|
||||
|
||||
#endif /* OS_COMPATIBILITY_H */
|
||||
|
|
|
|||
8
cursor/wayland-cursor-uninstalled.pc.in
Normal file
8
cursor/wayland-cursor-uninstalled.pc.in
Normal file
|
|
@ -0,0 +1,8 @@
|
|||
libdir=@abs_builddir@/.libs
|
||||
includedir=@abs_srcdir@
|
||||
|
||||
Name: Wayland Cursor
|
||||
Description: Wayland cursor helper library (not installed)
|
||||
Version: @WAYLAND_VERSION@
|
||||
Cflags: -I${includedir}
|
||||
Libs: -L${libdir} -lwayland-cursor
|
||||
|
|
@ -1,36 +1,31 @@
|
|||
/*
|
||||
* Copyright © 2012 Intel Corporation
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that copyright
|
||||
* notice and this permission notice appear in supporting documentation, and
|
||||
* that the name of the copyright holders not be used in advertising or
|
||||
* publicity pertaining to distribution of the software without specific,
|
||||
* written prior permission. The copyright holders make no representations
|
||||
* about the suitability of this software for any purpose. It is provided "as
|
||||
* is" without express or implied warranty.
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial
|
||||
* portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
* OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
#include "xcursor.h"
|
||||
#include "wayland-cursor.h"
|
||||
#include "wayland-client.h"
|
||||
#include <limits.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/mman.h>
|
||||
|
|
@ -69,16 +64,11 @@ shm_pool_create(struct wl_shm *shm, int size)
|
|||
goto err_close;
|
||||
|
||||
pool->pool = wl_shm_create_pool(shm, pool->fd, size);
|
||||
if (!pool->pool)
|
||||
goto err_unmap;
|
||||
|
||||
pool->size = size;
|
||||
pool->used = 0;
|
||||
|
||||
return pool;
|
||||
|
||||
err_unmap:
|
||||
munmap(pool->data, size);
|
||||
err_close:
|
||||
close(pool->fd);
|
||||
err_free:
|
||||
|
|
@ -89,16 +79,22 @@ err_free:
|
|||
static int
|
||||
shm_pool_resize(struct shm_pool *pool, int size)
|
||||
{
|
||||
if (os_resize_anonymous_file(pool->fd, size) < 0)
|
||||
if (ftruncate(pool->fd, size) < 0)
|
||||
return 0;
|
||||
|
||||
#ifdef HAVE_POSIX_FALLOCATE
|
||||
errno = posix_fallocate(pool->fd, 0, size);
|
||||
if (errno != 0)
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
wl_shm_pool_resize(pool->pool, size);
|
||||
|
||||
munmap(pool->data, pool->size);
|
||||
|
||||
pool->data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED,
|
||||
pool->fd, 0);
|
||||
if (pool->data == MAP_FAILED)
|
||||
if (pool->data == (void *)-1)
|
||||
return 0;
|
||||
pool->size = size;
|
||||
|
||||
|
|
@ -135,6 +131,7 @@ struct wl_cursor_theme {
|
|||
struct wl_cursor **cursors;
|
||||
struct wl_shm *shm;
|
||||
struct shm_pool *pool;
|
||||
char *name;
|
||||
int size;
|
||||
};
|
||||
|
||||
|
|
@ -157,32 +154,32 @@ struct cursor {
|
|||
* the returned buffer.
|
||||
*/
|
||||
WL_EXPORT struct wl_buffer *
|
||||
wl_cursor_image_get_buffer(struct wl_cursor_image *image)
|
||||
wl_cursor_image_get_buffer(struct wl_cursor_image *_img)
|
||||
{
|
||||
struct cursor_image *img = (struct cursor_image *) image;
|
||||
struct wl_cursor_theme *theme = img->theme;
|
||||
struct cursor_image *image = (struct cursor_image *) _img;
|
||||
struct wl_cursor_theme *theme = image->theme;
|
||||
|
||||
if (!img->buffer) {
|
||||
img->buffer =
|
||||
if (!image->buffer) {
|
||||
image->buffer =
|
||||
wl_shm_pool_create_buffer(theme->pool->pool,
|
||||
img->offset,
|
||||
image->width, image->height,
|
||||
image->width * 4,
|
||||
image->offset,
|
||||
_img->width, _img->height,
|
||||
_img->width * 4,
|
||||
WL_SHM_FORMAT_ARGB8888);
|
||||
};
|
||||
|
||||
return img->buffer;
|
||||
return image->buffer;
|
||||
}
|
||||
|
||||
static void
|
||||
wl_cursor_image_destroy(struct wl_cursor_image *image)
|
||||
wl_cursor_image_destroy(struct wl_cursor_image *_img)
|
||||
{
|
||||
struct cursor_image *img = (struct cursor_image *) image;
|
||||
struct cursor_image *image = (struct cursor_image *) _img;
|
||||
|
||||
if (img->buffer)
|
||||
wl_buffer_destroy(img->buffer);
|
||||
if (image->buffer)
|
||||
wl_buffer_destroy(image->buffer);
|
||||
|
||||
free(img);
|
||||
free(image);
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -193,7 +190,6 @@ wl_cursor_destroy(struct wl_cursor *cursor)
|
|||
for (i = 0; i < cursor->image_count; i++)
|
||||
wl_cursor_image_destroy(cursor->images[i]);
|
||||
|
||||
free(cursor->images);
|
||||
free(cursor->name);
|
||||
free(cursor);
|
||||
}
|
||||
|
|
@ -257,10 +253,13 @@ err_free_cursor:
|
|||
}
|
||||
|
||||
static void
|
||||
load_fallback_theme(struct wl_cursor_theme *theme)
|
||||
load_default_theme(struct wl_cursor_theme *theme)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
free(theme->name);
|
||||
theme->name = strdup("default");
|
||||
|
||||
theme->cursor_count = ARRAY_LENGTH(cursor_metadata);
|
||||
theme->cursors = malloc(theme->cursor_count * sizeof(*theme->cursors));
|
||||
|
||||
|
|
@ -280,13 +279,12 @@ load_fallback_theme(struct wl_cursor_theme *theme)
|
|||
}
|
||||
|
||||
static struct wl_cursor *
|
||||
wl_cursor_create_from_xcursor_images(struct xcursor_images *images,
|
||||
wl_cursor_create_from_xcursor_images(XcursorImages *images,
|
||||
struct wl_cursor_theme *theme)
|
||||
{
|
||||
struct cursor *cursor;
|
||||
struct cursor_image *image;
|
||||
size_t size;
|
||||
int i;
|
||||
int i, size;
|
||||
|
||||
cursor = malloc(sizeof *cursor);
|
||||
if (!cursor)
|
||||
|
|
@ -316,12 +314,7 @@ wl_cursor_create_from_xcursor_images(struct xcursor_images *images,
|
|||
image->image.hotspot_y = images->images[i]->yhot;
|
||||
image->image.delay = images->images[i]->delay;
|
||||
|
||||
size = (size_t) image->image.width * image->image.height * 4;
|
||||
if (size > INT_MAX) {
|
||||
free(image);
|
||||
break;
|
||||
}
|
||||
|
||||
size = image->image.width * image->image.height * 4;
|
||||
image->offset = shm_pool_allocate(theme->pool, size);
|
||||
if (image->offset < 0) {
|
||||
free(image);
|
||||
|
|
@ -347,34 +340,33 @@ wl_cursor_create_from_xcursor_images(struct xcursor_images *images,
|
|||
}
|
||||
|
||||
static void
|
||||
load_callback(struct xcursor_images *images, void *data)
|
||||
load_callback(XcursorImages *images, void *data)
|
||||
{
|
||||
struct wl_cursor_theme *theme = data;
|
||||
struct wl_cursor *cursor;
|
||||
struct wl_cursor **p;
|
||||
size_t s;
|
||||
|
||||
if (wl_cursor_theme_get_cursor(theme, images->name)) {
|
||||
xcursor_images_destroy(images);
|
||||
XcursorImagesDestroy(images);
|
||||
return;
|
||||
}
|
||||
|
||||
cursor = wl_cursor_create_from_xcursor_images(images, theme);
|
||||
|
||||
if (cursor) {
|
||||
s = theme->cursor_count + 1;
|
||||
p = realloc(theme->cursors, s * sizeof theme->cursors[0]);
|
||||
theme->cursor_count++;
|
||||
theme->cursors =
|
||||
realloc(theme->cursors,
|
||||
theme->cursor_count * sizeof theme->cursors[0]);
|
||||
|
||||
if (p == NULL) {
|
||||
if (theme->cursors == NULL) {
|
||||
theme->cursor_count--;
|
||||
free(cursor);
|
||||
} else {
|
||||
theme->cursor_count = s;
|
||||
theme->cursors = p;
|
||||
theme->cursors[theme->cursor_count - 1] = cursor;
|
||||
}
|
||||
}
|
||||
|
||||
xcursor_images_destroy(images);
|
||||
XcursorImagesDestroy(images);
|
||||
}
|
||||
|
||||
/** Load a cursor theme to memory shared with the compositor
|
||||
|
|
@ -397,31 +389,30 @@ wl_cursor_theme_load(const char *name, int size, struct wl_shm *shm)
|
|||
if (!theme)
|
||||
return NULL;
|
||||
|
||||
if (size < 0 || (size > 0 && INT_MAX / size / 4 < size))
|
||||
goto err;
|
||||
|
||||
if (!name)
|
||||
name = "default";
|
||||
|
||||
theme->name = strdup(name);
|
||||
if (!theme->name)
|
||||
goto out_error_name;
|
||||
theme->size = size;
|
||||
theme->cursor_count = 0;
|
||||
theme->cursors = NULL;
|
||||
|
||||
theme->pool = shm_pool_create(shm, size * size * 4);
|
||||
if (!theme->pool)
|
||||
goto err;
|
||||
goto out_error_pool;
|
||||
|
||||
xcursor_load_theme(name, size, load_callback, theme);
|
||||
|
||||
if (theme->cursor_count == 0)
|
||||
xcursor_load_theme(NULL, size, load_callback, theme);
|
||||
|
||||
if (theme->cursor_count == 0)
|
||||
load_fallback_theme(theme);
|
||||
load_default_theme(theme);
|
||||
|
||||
return theme;
|
||||
|
||||
err:
|
||||
out_error_pool:
|
||||
free(theme->name);
|
||||
out_error_name:
|
||||
free(theme);
|
||||
return NULL;
|
||||
}
|
||||
|
|
@ -440,6 +431,7 @@ wl_cursor_theme_destroy(struct wl_cursor_theme *theme)
|
|||
|
||||
shm_pool_destroy(theme->pool);
|
||||
|
||||
free(theme->name);
|
||||
free(theme->cursors);
|
||||
free(theme);
|
||||
}
|
||||
|
|
@ -466,67 +458,28 @@ wl_cursor_theme_get_cursor(struct wl_cursor_theme *theme,
|
|||
}
|
||||
|
||||
/** Find the frame for a given elapsed time in a cursor animation
|
||||
* as well as the time left until next cursor change.
|
||||
*
|
||||
* \param cursor The cursor
|
||||
* \param time Elapsed time in ms since the beginning of the animation
|
||||
* \param duration pointer to uint32_t to store time left for this image or
|
||||
* zero if the cursor won't change.
|
||||
* \param time Elapsed time since the beginning of the animation
|
||||
*
|
||||
* \return The index of the image that should be displayed for the
|
||||
* given time in the cursor animation.
|
||||
*/
|
||||
WL_EXPORT int
|
||||
wl_cursor_frame_and_duration(struct wl_cursor *cursor, uint32_t time,
|
||||
uint32_t *duration)
|
||||
wl_cursor_frame(struct wl_cursor *_cursor, uint32_t time)
|
||||
{
|
||||
struct cursor *cur = (struct cursor *) cursor;
|
||||
struct cursor *cursor = (struct cursor *) _cursor;
|
||||
uint32_t t;
|
||||
int i;
|
||||
|
||||
if (cur->cursor.image_count == 1 || cur->total_delay == 0) {
|
||||
if (duration)
|
||||
*duration = 0;
|
||||
if (cursor->cursor.image_count == 1)
|
||||
return 0;
|
||||
}
|
||||
|
||||
i = 0;
|
||||
t = time % cur->total_delay;
|
||||
t = time % cursor->total_delay;
|
||||
|
||||
/* If there is a 0 delay in the image set then this
|
||||
* loop breaks on it and we display that cursor until
|
||||
* time % cursor->total_delay wraps again.
|
||||
* Since a 0 delay is silly, and we've never actually
|
||||
* seen one in a cursor file, we haven't bothered to
|
||||
* "fix" this.
|
||||
*/
|
||||
while (t - cur->cursor.images[i]->delay < t)
|
||||
t -= cur->cursor.images[i++]->delay;
|
||||
|
||||
if (!duration)
|
||||
return i;
|
||||
|
||||
/* Make sure we don't accidentally tell the caller this is
|
||||
* a static cursor image.
|
||||
*/
|
||||
if (t >= cur->cursor.images[i]->delay)
|
||||
*duration = 1;
|
||||
else
|
||||
*duration = cur->cursor.images[i]->delay - t;
|
||||
while (t - cursor->cursor.images[i]->delay < t)
|
||||
t -= cursor->cursor.images[i++]->delay;
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
/** Find the frame for a given elapsed time in a cursor animation
|
||||
*
|
||||
* \param cursor The cursor
|
||||
* \param time Elapsed time in ms since the beginning of the animation
|
||||
*
|
||||
* \return The index of the image that should be displayed for the
|
||||
* given time in the cursor animation.
|
||||
*/
|
||||
WL_EXPORT int
|
||||
wl_cursor_frame(struct wl_cursor *cursor, uint32_t time)
|
||||
{
|
||||
return wl_cursor_frame_and_duration(cursor, time, NULL);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,26 +1,23 @@
|
|||
/*
|
||||
* Copyright © 2012 Intel Corporation
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that copyright
|
||||
* notice and this permission notice appear in supporting documentation, and
|
||||
* that the name of the copyright holders not be used in advertising or
|
||||
* publicity pertaining to distribution of the software without specific,
|
||||
* written prior permission. The copyright holders make no representations
|
||||
* about the suitability of this software for any purpose. It is provided "as
|
||||
* is" without express or implied warranty.
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial
|
||||
* portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
* OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef WAYLAND_CURSOR_H
|
||||
|
|
@ -33,42 +30,23 @@ extern "C" {
|
|||
#endif
|
||||
|
||||
struct wl_cursor_theme;
|
||||
struct wl_buffer;
|
||||
struct wl_shm;
|
||||
|
||||
/** A still image part of a cursor
|
||||
*
|
||||
* Use `wl_cursor_image_get_buffer()` to get the corresponding `struct
|
||||
* wl_buffer` to attach to your `struct wl_surface`. */
|
||||
struct wl_cursor_image {
|
||||
/** Actual width */
|
||||
uint32_t width;
|
||||
|
||||
/** Actual height */
|
||||
uint32_t height;
|
||||
|
||||
/** Hot spot x (must be inside image) */
|
||||
uint32_t hotspot_x;
|
||||
|
||||
/** Hot spot y (must be inside image) */
|
||||
uint32_t hotspot_y;
|
||||
|
||||
/** Animation delay to next frame (ms) */
|
||||
uint32_t delay;
|
||||
uint32_t width; /* actual width */
|
||||
uint32_t height; /* actual height */
|
||||
uint32_t hotspot_x; /* hot spot x (must be inside image) */
|
||||
uint32_t hotspot_y; /* hot spot y (must be inside image) */
|
||||
uint32_t delay; /* animation delay to next frame (ms) */
|
||||
};
|
||||
|
||||
/** A cursor, as returned by `wl_cursor_theme_get_cursor()` */
|
||||
struct wl_cursor {
|
||||
/** How many images there are in this cursor’s animation */
|
||||
unsigned int image_count;
|
||||
|
||||
/** The array of still images composing this animation */
|
||||
struct wl_cursor_image **images;
|
||||
|
||||
/** The name of this cursor */
|
||||
char *name;
|
||||
};
|
||||
|
||||
struct wl_shm;
|
||||
|
||||
struct wl_cursor_theme *
|
||||
wl_cursor_theme_load(const char *name, int size, struct wl_shm *shm);
|
||||
|
||||
|
|
@ -85,10 +63,6 @@ wl_cursor_image_get_buffer(struct wl_cursor_image *image);
|
|||
int
|
||||
wl_cursor_frame(struct wl_cursor *cursor, uint32_t time);
|
||||
|
||||
int
|
||||
wl_cursor_frame_and_duration(struct wl_cursor *cursor, uint32_t time,
|
||||
uint32_t *duration);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
|
|
|||
10
cursor/wayland-cursor.pc.in
Normal file
10
cursor/wayland-cursor.pc.in
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
prefix=@prefix@
|
||||
exec_prefix=@exec_prefix@
|
||||
libdir=@libdir@
|
||||
includedir=@includedir@
|
||||
|
||||
Name: Wayland Cursor
|
||||
Description: Wayland cursor helper library
|
||||
Version: @WAYLAND_VERSION@
|
||||
Cflags: -I${includedir}
|
||||
Libs: -L${libdir} -lwayland-cursor
|
||||
1314
cursor/xcursor.c
1314
cursor/xcursor.c
File diff suppressed because it is too large
Load diff
|
|
@ -1,58 +1,62 @@
|
|||
/*
|
||||
* Copyright © 2002 Keith Packard
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining
|
||||
* a copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sublicense, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that
|
||||
* copyright notice and this permission notice appear in supporting
|
||||
* documentation, and that the name of Keith Packard not be used in
|
||||
* advertising or publicity pertaining to distribution of the software without
|
||||
* specific, written prior permission. Keith Packard makes no
|
||||
* representations about the suitability of this software for any purpose. It
|
||||
* is provided "as is" without express or implied warranty.
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial
|
||||
* portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
||||
* PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef XCURSOR_H
|
||||
#define XCURSOR_H
|
||||
|
||||
#include <stdint.h>
|
||||
typedef int XcursorBool;
|
||||
typedef unsigned int XcursorUInt;
|
||||
|
||||
struct xcursor_image {
|
||||
uint32_t version; /* version of the image data */
|
||||
uint32_t size; /* nominal size for matching */
|
||||
uint32_t width; /* actual width */
|
||||
uint32_t height; /* actual height */
|
||||
uint32_t xhot; /* hot spot x (must be inside image) */
|
||||
uint32_t yhot; /* hot spot y (must be inside image) */
|
||||
uint32_t delay; /* animation delay to next frame (ms) */
|
||||
uint32_t *pixels; /* pointer to pixels */
|
||||
};
|
||||
typedef XcursorUInt XcursorDim;
|
||||
typedef XcursorUInt XcursorPixel;
|
||||
|
||||
typedef struct _XcursorImage {
|
||||
XcursorUInt version; /* version of the image data */
|
||||
XcursorDim size; /* nominal size for matching */
|
||||
XcursorDim width; /* actual width */
|
||||
XcursorDim height; /* actual height */
|
||||
XcursorDim xhot; /* hot spot x (must be inside image) */
|
||||
XcursorDim yhot; /* hot spot y (must be inside image) */
|
||||
XcursorUInt delay; /* animation delay to next frame (ms) */
|
||||
XcursorPixel *pixels; /* pointer to pixels */
|
||||
} XcursorImage;
|
||||
|
||||
/*
|
||||
* Other data structures exposed by the library API
|
||||
*/
|
||||
struct xcursor_images {
|
||||
int nimage; /* number of images */
|
||||
struct xcursor_image **images; /* array of XcursorImage pointers */
|
||||
char *name; /* name used to load images */
|
||||
};
|
||||
typedef struct _XcursorImages {
|
||||
int nimage; /* number of images */
|
||||
XcursorImage **images; /* array of XcursorImage pointers */
|
||||
char *name; /* name used to load images */
|
||||
} XcursorImages;
|
||||
|
||||
XcursorImages *
|
||||
XcursorLibraryLoadImages (const char *file, const char *theme, int size);
|
||||
|
||||
void
|
||||
xcursor_images_destroy(struct xcursor_images *images);
|
||||
XcursorImagesDestroy (XcursorImages *images);
|
||||
|
||||
void
|
||||
xcursor_load_theme(const char *theme, int size,
|
||||
void (*load_callback)(struct xcursor_images *, void *),
|
||||
void *user_data);
|
||||
void (*load_callback)(XcursorImages *, void *),
|
||||
void *user_data);
|
||||
#endif
|
||||
|
|
|
|||
83
doc/Contributing
Normal file
83
doc/Contributing
Normal file
|
|
@ -0,0 +1,83 @@
|
|||
= Contributing to Wayland =
|
||||
|
||||
== Sending patches ==
|
||||
|
||||
Patches should be sent to wayland-devel@lists.freedesktop.org, using
|
||||
git send-email. See git's documentation for help [1].
|
||||
|
||||
The first line of a commit message should contain a prefix indicating
|
||||
what part is affected by the patch followed by one sentence that
|
||||
describes the change. For examples:
|
||||
|
||||
protocol: Support scaled outputs and surfaces
|
||||
|
||||
and
|
||||
|
||||
doc: generate server documentation from XML too
|
||||
|
||||
If in doubt what prefix to use, look at other commits that change the
|
||||
same file(s) as the patch being sent.
|
||||
|
||||
The body of the commit message should describe what the patch changes
|
||||
and why, and also note any particular side effects. This shouldn't be
|
||||
empty on most of the cases. It shouldn't take a lot of effort to write
|
||||
a commit message for an obvious change, so an empty commit message
|
||||
body is only acceptable if the questions "What?" and "Why" are already
|
||||
answered on the one-line summary.
|
||||
|
||||
The lines of the commit message should have at most 76 characters, to
|
||||
cope with the way git log presents them.
|
||||
|
||||
See [2] for a recommend reading on writing commit messages.
|
||||
|
||||
== Coding style ==
|
||||
|
||||
You should follow the style of the file you're editing. In general, we
|
||||
try to follow the rules below.
|
||||
|
||||
- indent with tabs, and a tab is always 8 characters wide
|
||||
- opening braces are on the same line as the if statement;
|
||||
- no braces in an if-body with just one statement;
|
||||
- if one of the branches of an if-else codition has braces, than the
|
||||
other branch should also have braces;
|
||||
- there is always an empty line between variable declarations and the
|
||||
code;
|
||||
|
||||
static int
|
||||
my_function(void)
|
||||
{
|
||||
int a = 0;
|
||||
|
||||
if (a)
|
||||
b();
|
||||
else
|
||||
c();
|
||||
|
||||
if (a) {
|
||||
b();
|
||||
c();
|
||||
} else {
|
||||
d();
|
||||
}
|
||||
}
|
||||
|
||||
- lines should be less than 80 characters wide;
|
||||
- when breaking lines with functions calls, the parameters are aligned
|
||||
with the opening parenthesis;
|
||||
- when assigning a variable with the result of a function call, if the
|
||||
line would be longer we break it around the equal '=' sign if it makes
|
||||
sense;
|
||||
|
||||
long_variable_name =
|
||||
function_with_a_really_long_name(parameter1, parameter2,
|
||||
parameter3, parameter4);
|
||||
|
||||
x = function_with_a_really_long_name(parameter1, parameter2,
|
||||
parameter3, parameter4);
|
||||
|
||||
== References ==
|
||||
|
||||
[1] http://git-scm.com/documentation
|
||||
|
||||
[2] http://who-t.blogspot.de/2009/12/on-commit-messages.html
|
||||
|
||||
3
doc/Makefile.am
Normal file
3
doc/Makefile.am
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
SUBDIRS = doxygen publican man
|
||||
|
||||
EXTRA_DIST = Contributing
|
||||
1
doc/book/.gitignore
vendored
1
doc/book/.gitignore
vendored
|
|
@ -1 +0,0 @@
|
|||
/book
|
||||
|
|
@ -1,9 +0,0 @@
|
|||
[book]
|
||||
title = "Wayland"
|
||||
authors = ["Kristian Høgsberg"]
|
||||
language = "en"
|
||||
|
||||
[output.html]
|
||||
git-repository-url = "https://gitlab.freedesktop.org/wayland/wayland"
|
||||
edit-url-template = "https://gitlab.freedesktop.org/wayland/wayland/-/edit/main/doc/book/{path}"
|
||||
site-url = "/docs/book/"
|
||||
File diff suppressed because it is too large
Load diff
|
|
@ -1,198 +0,0 @@
|
|||
<mxfile host="Electron" agent="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) draw.io/29.0.3 Chrome/140.0.7339.249 Electron/38.7.0 Safari/537.36" version="29.0.3" pages="6">
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||||
<diagram name="state 1" id="9R2pyHIIQvV-60tET7sh">
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<root>
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<mxCell id="0" />
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<mxCell id="1" parent="0" />
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</mxCell>
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||||
<mxGeometry y="20" width="40" height="40" as="geometry" />
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||||
</mxCell>
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||||
<mxCell id="Vljyf9wL_jF0PBdsZ3ZJ-58" value="" style="whiteSpace=wrap;html=1;aspect=fixed;labelBackgroundColor=none;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
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||||
<mxGeometry x="45" y="25" width="30" height="30" as="geometry" />
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||||
</mxCell>
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||||
<mxCell id="Vljyf9wL_jF0PBdsZ3ZJ-59" value="" style="whiteSpace=wrap;html=1;aspect=fixed;labelBackgroundColor=none;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
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||||
<mxGeometry x="45" y="105" width="30" height="30" as="geometry" />
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||||
</mxCell>
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||||
<mxCell id="Vljyf9wL_jF0PBdsZ3ZJ-60" value="SS1" style="text;html=1;strokeColor=none;fillColor=none;align=center;verticalAlign=middle;whiteSpace=wrap;overflow=hidden;fontSize=14;fontStyle=1;fontFamily=Courier New;" vertex="1" parent="1">
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<mxGeometry y="100" width="40" height="40" as="geometry" />
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||||
</mxCell>
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||||
<mxCell id="Vljyf9wL_jF0PBdsZ3ZJ-61" value="" style="whiteSpace=wrap;html=1;aspect=fixed;labelBackgroundColor=none;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
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||||
<mxGeometry x="45" y="185" width="30" height="30" as="geometry" />
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||||
</mxCell>
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||||
<mxCell id="Vljyf9wL_jF0PBdsZ3ZJ-62" value="T1" style="text;html=1;strokeColor=none;fillColor=none;align=center;verticalAlign=middle;whiteSpace=wrap;overflow=hidden;fontSize=14;fontStyle=1;fontFamily=Courier New;" vertex="1" parent="1">
|
||||
<mxGeometry y="180" width="40" height="40" as="geometry" />
|
||||
</mxCell>
|
||||
</root>
|
||||
</mxGraphModel>
|
||||
</diagram>
|
||||
<diagram id="J0DvB8TbWnCMMz7TEYbc" name="state 2">
|
||||
<mxGraphModel dx="446" dy="299" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="450" pageHeight="250" math="0" shadow="0">
|
||||
<root>
|
||||
<mxCell id="0" />
|
||||
<mxCell id="1" parent="0" />
|
||||
<mxCell id="NNa_h0o6fpdAX9mVI6Ni-1" value="" style="verticalLabelPosition=bottom;verticalAlign=top;html=1;shape=mxgraph.basic.polygon;polyCoords=[[0.45,0],[0.75,0],[1,0],[1,1],[0.62,1],[0,1],[0,1],[0,1],[0,0.2],[0,0],[0.24,0]];polyline=0;fillColor=none;dashed=1;strokeColor=#CC00CC;strokeWidth=2;perimeterSpacing=0;shadow=1;sketch=1;curveFitting=1;jiggle=2;fixDash=0;container=0;dropTarget=0;" vertex="1" parent="1">
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||||
<mxGeometry x="110" y="20" width="50" height="40" as="geometry" />
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||||
</mxCell>
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||||
<mxGeometry x="119" y="25" width="30" height="30" as="geometry" />
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||||
</mxCell>
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<mxCell id="NNa_h0o6fpdAX9mVI6Ni-3" value="SS2" style="text;html=1;strokeColor=none;fillColor=none;align=center;verticalAlign=middle;whiteSpace=wrap;overflow=hidden;fontSize=14;fontStyle=1;fontFamily=Courier New;" vertex="1" parent="1">
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<mxGeometry y="20" width="40" height="40" as="geometry" />
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||||
</mxCell>
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||||
<mxCell id="NNa_h0o6fpdAX9mVI6Ni-4" value="" style="whiteSpace=wrap;html=1;aspect=fixed;labelBackgroundColor=none;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
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<mxGeometry x="45" y="25" width="30" height="30" as="geometry" />
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</mxCell>
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<mxCell id="NNa_h0o6fpdAX9mVI6Ni-5" value="" style="whiteSpace=wrap;html=1;aspect=fixed;labelBackgroundColor=none;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
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<mxGeometry x="45" y="105" width="30" height="30" as="geometry" />
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</mxCell>
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<mxCell id="NNa_h0o6fpdAX9mVI6Ni-6" value="SS1" style="text;html=1;strokeColor=none;fillColor=none;align=center;verticalAlign=middle;whiteSpace=wrap;overflow=hidden;fontSize=14;fontStyle=1;fontFamily=Courier New;" vertex="1" parent="1">
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<mxGeometry y="100" width="40" height="40" as="geometry" />
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</mxCell>
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<mxCell id="NNa_h0o6fpdAX9mVI6Ni-7" value="" style="whiteSpace=wrap;html=1;aspect=fixed;labelBackgroundColor=none;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
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</mxCell>
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<mxCell id="NNa_h0o6fpdAX9mVI6Ni-8" value="T1" style="text;html=1;strokeColor=none;fillColor=none;align=center;verticalAlign=middle;whiteSpace=wrap;overflow=hidden;fontSize=14;fontStyle=1;fontFamily=Courier New;" vertex="1" parent="1">
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<mxGeometry y="180" width="40" height="40" as="geometry" />
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</mxCell>
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||||
</mxGraphModel>
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<diagram id="ySO0QrqtFkECLiZt7iPp" name="state 3">
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<mxGraphModel dx="701" dy="470" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="450" pageHeight="250" math="0" shadow="0">
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<root>
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<mxCell id="0" />
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<mxCell id="1" parent="0" />
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<mxGeometry y="100" width="40" height="40" as="geometry" />
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</mxCell>
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<mxCell id="pI76myQ_i7gC2-BWcum8-5" value="" style="whiteSpace=wrap;html=1;aspect=fixed;labelBackgroundColor=none;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="1">
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<mxGeometry x="45" y="185" width="30" height="30" as="geometry" />
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</mxCell>
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<mxCell id="pI76myQ_i7gC2-BWcum8-6" value="T1" style="text;html=1;strokeColor=none;fillColor=none;align=center;verticalAlign=middle;whiteSpace=wrap;overflow=hidden;fontSize=14;fontStyle=1;fontFamily=Courier New;" vertex="1" parent="1">
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<mxGeometry y="180" width="40" height="40" as="geometry" />
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</mxCell>
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</root>
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</mxGraphModel>
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<diagram id="Kx24UVXuaWmlcUcIS4GM" name="state 4">
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<mxGraphModel dx="446" dy="299" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="450" pageHeight="250" math="0" shadow="0">
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<root>
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<mxCell id="0" />
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<mxCell id="1" parent="0" />
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<mxCell id="v1jzpavZj8JK8wO-OO9X-1" value="SS2" style="text;html=1;strokeColor=none;fillColor=none;align=center;verticalAlign=middle;whiteSpace=wrap;overflow=hidden;fontSize=14;fontStyle=1;fontFamily=Courier New;" vertex="1" parent="1">
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<mxGeometry x="101" width="70" height="140" as="geometry" />
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</mxCell>
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<mxCell id="OwjlZwffn-Y4nYBfrumN-13" value="B" style="verticalLabelPosition=middle;verticalAlign=middle;html=1;strokeWidth=1;shape=mxgraph.flowchart.on-page_reference;strokeColor=#b85450;fillColor=#f8cecc;labelPosition=center;align=center;dashed=1;fontStyle=1;spacing=0;spacingBottom=2;" vertex="1" parent="OwjlZwffn-Y4nYBfrumN-16">
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<mxGeometry x="121" y="90" width="14" height="14" as="geometry" />
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</mxCell>
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</mxCell>
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<mxCell id="OwjlZwffn-Y4nYBfrumN-15" value="" style="endArrow=open;html=1;rounded=0;strokeWidth=3;curved=0;endFill=0;" edge="1" parent="OwjlZwffn-Y4nYBfrumN-16" source="OwjlZwffn-Y4nYBfrumN-14" target="OwjlZwffn-Y4nYBfrumN-10">
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<Array as="points" />
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</mxGeometry>
|
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</mxCell>
|
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</root>
|
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</mxGraphModel>
|
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</diagram>
|
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<diagram id="9Yl-pgUNl23KlRTR3j43" name="state 3">
|
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<mxGraphModel dx="1070" dy="774" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="450" pageHeight="250" math="0" shadow="0">
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<root>
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<mxCell id="0" />
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<mxCell id="1" parent="0" />
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<mxCell id="3Z5IVvEdUQoImQymVIXm-16" value="" style="group" vertex="1" connectable="0" parent="1">
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</mxCell>
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<mxGeometry y="10" width="40" height="40" as="geometry" />
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</mxCell>
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<mxCell id="3Z5IVvEdUQoImQymVIXm-3" value="" style="whiteSpace=wrap;html=1;aspect=fixed;labelBackgroundColor=none;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex="1" parent="3Z5IVvEdUQoImQymVIXm-16">
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</mxCell>
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<mxCell id="3Z5IVvEdUQoImQymVIXm-4" value="1" style="verticalLabelPosition=middle;verticalAlign=middle;strokeWidth=4;shape=mxgraph.flowchart.on-page_reference;fillColor=#d5e8d4;strokeColor=#000000;labelPosition=center;align=center;html=1;fontSize=18;fontStyle=1;spacingBottom=3;" vertex="1" parent="3Z5IVvEdUQoImQymVIXm-16">
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</mxCell>
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</mxCell>
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</mxCell>
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<mxCell id="3Z5IVvEdUQoImQymVIXm-15" value="" style="endArrow=open;html=1;rounded=0;strokeWidth=3;curved=0;endFill=0;exitX=0;exitY=0.5;exitDx=0;exitDy=0;exitPerimeter=0;" edge="1" parent="3Z5IVvEdUQoImQymVIXm-16" source="3Z5IVvEdUQoImQymVIXm-14" target="3Z5IVvEdUQoImQymVIXm-11">
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<Array as="points" />
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</mxGeometry>
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</mxCell>
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</root>
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</mxGraphModel>
|
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</diagram>
|
||||
</mxfile>
|
||||
|
|
@ -1,36 +0,0 @@
|
|||
digraph arch_wayland {
|
||||
edge[
|
||||
fontname="DejaVu Sans",
|
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dir="both",
|
||||
arrowtail="dot",
|
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arrowsize=.5,
|
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fontname="DejaVu Sans",
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fontsize="18",
|
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]
|
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|
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node[
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color=none,
|
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margin=0,
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fontname="DejaVu Sans",
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fontsize="18",
|
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]
|
||||
|
||||
c1 [label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD>Wayland Client</TD></TR></TABLE>>, URL="#c1"]
|
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c2 [label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD>Wayland Client</TD></TR></TABLE>>, URL="#c2"]
|
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|
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comp [tooltip="Wayland Compositor", label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD><BR/>Wayland<BR/>Compositor<BR/><BR/></TD></TR></TABLE>>, URL="#comp"]
|
||||
|
||||
impl [tooltip="KMS evdev Kernel", label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD>KMS</TD><TD>evdev</TD></TR><TR><TD COLSPAN="2">Kernel</TD></TR></TABLE>>, URL="#impl"]
|
||||
|
||||
c1 -> comp [taillabel="③", labeldistance=2.5, URL="#step_3"];
|
||||
c2 -> comp;
|
||||
|
||||
comp -> c1 [label="②", URL="#step_2"];
|
||||
comp -> c2;
|
||||
|
||||
comp -> impl [xlabel = "④", URL="#step_4"];
|
||||
comp -> impl [style = invis, label=" "];
|
||||
impl -> comp [xlabel = "①", URL="#step_1"];
|
||||
|
||||
c1 -> c2 [style=invis];
|
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}
|
||||
|
|
@ -1,53 +0,0 @@
|
|||
digraph arch_x {
|
||||
edge[
|
||||
fontname="DejaVu Sans",
|
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dir="both",
|
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arrowtail="dot",
|
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arrowsize=.5,
|
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fontname="DejaVu Sans",
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fontsize="18",
|
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]
|
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|
||||
node[
|
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shape="none",
|
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color=none,
|
||||
margin=0,
|
||||
fontname="DejaVu Sans",
|
||||
fontsize="18",
|
||||
]
|
||||
|
||||
{
|
||||
rank=same;
|
||||
c1 [label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD>X Client</TD></TR></TABLE>>, URL="#c1"]
|
||||
c3 [label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD>X Client</TD></TR></TABLE>>, URL="#c3"]
|
||||
}
|
||||
c2 [label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD>X Client</TD></TR></TABLE>>, URL="#c2"]
|
||||
|
||||
{
|
||||
rank=same;
|
||||
xserver [tooltip="X Server", label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD><BR/>X Server<BR/><BR/></TD></TR></TABLE>>, URL="#xserver"]
|
||||
comp [tooltip="Compositor", label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD><BR/>Compositor<BR/><BR/></TD></TR></TABLE>>, URL="#comp"]
|
||||
}
|
||||
|
||||
impl [tooltip="KMS evdev Kernel", label=<<TABLE STYLE="rounded" BGCOLOR="#ffbc00"><TR><TD>KMS</TD><TD>evdev</TD></TR><TR><TD COLSPAN="2">Kernel</TD></TR></TABLE>>, URL="#impl"]
|
||||
|
||||
c1 -> xserver [taillabel="③", labeldistance=2, URL="#step_3"];
|
||||
c2 -> xserver;
|
||||
c3 -> xserver;
|
||||
|
||||
xserver -> c1 [taillabel="②", labeldistance=2, URL="#step_2"];
|
||||
xserver -> c2;
|
||||
xserver -> c3;
|
||||
|
||||
xserver -> impl [taillabel="⑥", labeldistance=1.75, URL="#step_6"];
|
||||
xserver -> impl [style=invis, label=" "];
|
||||
impl -> xserver [taillabel="①", labeldistance=1.75, URL="#step_1"];
|
||||
|
||||
xserver -> comp [style=invis];
|
||||
xserver -> comp [taillabel="④", labeldistance=1.75, labelangle=-45, URL="#step_4"];
|
||||
comp -> xserver [taillabel="⑤", URL="#step_5"];
|
||||
comp -> xserver [style=invis]
|
||||
|
||||
c1 -> c2 [style=invis];
|
||||
c3 -> c2 [style=invis];
|
||||
}
|
||||
|
|
@ -1,58 +0,0 @@
|
|||
srcs = files(
|
||||
'src/Protocol.md',
|
||||
'src/Foreword.md',
|
||||
'src/Xwayland.md',
|
||||
'src/SUMMARY.md',
|
||||
'src/Content_Updates.md',
|
||||
'src/Color.md',
|
||||
'src/Message_XML.md',
|
||||
'src/Architecture.md',
|
||||
'src/Introduction.md',
|
||||
'src/images/content-updates/sync-to-desync-subsurf-3.png',
|
||||
'src/images/content-updates/sync-subsurf-case2-2.png',
|
||||
'src/images/content-updates/simple-synchronized-state-4.png',
|
||||
'src/images/content-updates/sync-subsurf-case2-3.png',
|
||||
'src/images/content-updates/sync-to-desync-transition-2.png',
|
||||
'src/images/content-updates/simple-desynchronized-state-4.png',
|
||||
'src/images/content-updates/simple-synchronized-state-3.png',
|
||||
'src/images/content-updates/simple-synchronized-state-1.png',
|
||||
'src/images/content-updates/sync-subsurf-case1-4.png',
|
||||
'src/images/content-updates/sync-to-desync-subsurf-1.png',
|
||||
'src/images/content-updates/simple-desynchronized-state-1.png',
|
||||
'src/images/content-updates/simple-desynchronized-state-3.png',
|
||||
'src/images/content-updates/simple-desynchronized-state-6.png',
|
||||
'src/images/content-updates/sync-subsurf-case1-2.png',
|
||||
'src/images/content-updates/sync-subsurf-case1-1.png',
|
||||
'src/images/content-updates/simple-synchronized-state-5.png',
|
||||
'src/images/content-updates/simple-synchronized-state-2.png',
|
||||
'src/images/content-updates/simple-desynchronized-state-2.png',
|
||||
'src/images/content-updates/content-update-legend.png',
|
||||
'src/images/content-updates/sync-to-desync-subsurf-2.png',
|
||||
'src/images/content-updates/sync-to-desync-transition-3.png',
|
||||
'src/images/content-updates/sync-subsurf-case2-1.png',
|
||||
'src/images/content-updates/sync-subsurf-case1-5.png',
|
||||
'src/images/content-updates/sync-subsurf-case1-3.png',
|
||||
'src/images/content-updates/simple-desynchronized-state-5.png',
|
||||
'src/images/content-updates/sync-to-desync-transition-1.png',
|
||||
'src/images/icon.svg',
|
||||
'src/images/x-architecture.png',
|
||||
'src/images/wayland.png',
|
||||
'src/images/wayland-architecture.png',
|
||||
'src/images/xwayland-architecture.png',
|
||||
'src/Compositors.md',
|
||||
)
|
||||
|
||||
custom_target(
|
||||
'Wayland-book',
|
||||
command: [
|
||||
mdbook,
|
||||
'build',
|
||||
'-d', meson.current_build_dir() / 'book',
|
||||
meson.current_source_dir(),
|
||||
],
|
||||
depend_files: srcs,
|
||||
output: 'book',
|
||||
build_by_default: true,
|
||||
install: true,
|
||||
install_dir: publican_install_prefix,
|
||||
)
|
||||
|
|
@ -1,215 +0,0 @@
|
|||
# Wayland Architecture
|
||||
|
||||
## X vs. Wayland Architecture
|
||||
|
||||
A good way to understand the Wayland architecture and how it is different from X
|
||||
is to follow an event from the input device to the point where the change it
|
||||
affects appears on screen.
|
||||
|
||||
This is where we are now with X:
|
||||
|
||||
**X architecture diagram**
|
||||
|
||||
|
||||
|
||||
1. The kernel gets an event from an input device and sends it to X through the
|
||||
evdev input driver. The kernel does all the hard work here by driving the
|
||||
device and translating the different device specific event protocols to the
|
||||
linux evdev input event standard.
|
||||
|
||||
2. The X server determines which window the event affects and sends it to the
|
||||
clients that have selected for the event in question on that window. The X
|
||||
server doesn't actually know how to do this right, since the window location
|
||||
on screen is controlled by the compositor and may be transformed in a number
|
||||
of ways that the X server doesn't understand (scaled down, rotated, wobbling,
|
||||
etc).
|
||||
|
||||
3. The client looks at the event and decides what to do. Often the UI will have
|
||||
to change in response to the event - perhaps a check box was clicked or the
|
||||
pointer entered a button that must be highlighted. Thus the client sends a
|
||||
rendering request back to the X server.
|
||||
|
||||
4. When the X server receives the rendering request, it sends it to the driver
|
||||
to let it program the hardware to do the rendering. The X server also
|
||||
calculates the bounding region of the rendering, and sends that to the
|
||||
compositor as a damage event.
|
||||
|
||||
5. The damage event tells the compositor that something changed in the window
|
||||
and that it has to recomposite the part of the screen where that window is
|
||||
visible. The compositor is responsible for rendering the entire screen
|
||||
contents based on its scenegraph and the contents of the X windows. Yet, it
|
||||
has to go through the X server to render this.
|
||||
|
||||
6. The X server receives the rendering requests from the compositor and either
|
||||
copies the compositor back buffer to the front buffer or does a pageflip. In
|
||||
the general case, the X server has to do this step so it can account for
|
||||
overlapping windows, which may require clipping and determine whether or not
|
||||
it can page flip. However, for a compositor, which is always fullscreen, this
|
||||
is another unnecessary context switch.
|
||||
|
||||
As suggested above, there are a few problems with this approach. The X server
|
||||
doesn't have the information to decide which window should receive the event,
|
||||
nor can it transform the screen coordinates to window-local coordinates. And
|
||||
even though X has handed responsibility for the final painting of the screen to
|
||||
the compositing manager, X still controls the front buffer and modesetting. Most
|
||||
of the complexity that the X server used to handle is now available in the
|
||||
kernel or self contained libraries (KMS, evdev, mesa, fontconfig, freetype,
|
||||
cairo, Qt etc). In general, the X server is now just a middle man that
|
||||
introduces an extra step between applications and the compositor and an extra
|
||||
step between the compositor and the hardware.
|
||||
|
||||
In Wayland the compositor is the display server. We transfer the control of KMS
|
||||
and evdev to the compositor. The Wayland protocol lets the compositor send the
|
||||
input events directly to the clients and lets the client send the damage event
|
||||
directly to the compositor:
|
||||
|
||||
**Wayland architecture diagram**
|
||||
|
||||
|
||||
|
||||
1. The kernel gets an event and sends it to the compositor. This is similar to
|
||||
the X case, which is great, since we get to reuse all the input drivers in
|
||||
the kernel.
|
||||
|
||||
2. The compositor looks through its scenegraph to determine which window should
|
||||
receive the event. The scenegraph corresponds to what's on screen and the
|
||||
compositor understands the transformations that it may have applied to the
|
||||
elements in the scenegraph. Thus, the compositor can pick the right window
|
||||
and transform the screen coordinates to window-local coordinates, by applying
|
||||
the inverse transformations. The types of transformation that can be applied
|
||||
to a window is only restricted to what the compositor can do, as long as it
|
||||
can compute the inverse transformation for the input events.
|
||||
|
||||
3. As in the X case, when the client receives the event, it updates the UI in
|
||||
response. But in the Wayland case, the rendering happens in the client, and
|
||||
the client just sends a request to the compositor to indicate the region that
|
||||
was updated.
|
||||
|
||||
4. The compositor collects damage requests from its clients and then
|
||||
recomposites the screen. The compositor can then directly issue an ioctl to
|
||||
schedule a pageflip with KMS.
|
||||
|
||||
## Wayland Rendering
|
||||
|
||||
One of the details I left out in the above overview is how clients actually
|
||||
render under Wayland. By removing the X server from the picture we also removed
|
||||
the mechanism by which X clients typically render. But there's another mechanism
|
||||
that we're already using with DRI2 under X: direct rendering. With direct
|
||||
rendering, the client and the server share a video memory buffer. The client
|
||||
links to a rendering library such as OpenGL that knows how to program the
|
||||
hardware and renders directly into the buffer. The compositor in turn can take
|
||||
the buffer and use it as a texture when it composites the desktop. After the
|
||||
initial setup, the client only needs to tell the compositor which buffer to use
|
||||
and when and where it has rendered new content into it.
|
||||
|
||||
This leaves an application with two ways to update its window contents:
|
||||
|
||||
1. Render the new content into a new buffer and tell the compositor to use that
|
||||
instead of the old buffer. The application can allocate a new buffer every
|
||||
time it needs to update the window contents or it can keep two (or more)
|
||||
buffers around and cycle between them. The buffer management is entirely
|
||||
under application control.
|
||||
|
||||
2. Render the new content into the buffer that it previously told the compositor
|
||||
to to use. While it's possible to just render directly into the buffer shared
|
||||
with the compositor, this might race with the compositor. What can happen is
|
||||
that repainting the window contents could be interrupted by the compositor
|
||||
repainting the desktop. If the application gets interrupted just after
|
||||
clearing the window but before rendering the contents, the compositor will
|
||||
texture from a blank buffer. The result is that the application window will
|
||||
flicker between a blank window or half-rendered content. The traditional way
|
||||
to avoid this is to render the new content into a back buffer and then copy
|
||||
from there into the compositor surface. The back buffer can be allocated on
|
||||
the fly and just big enough to hold the new content, or the application can
|
||||
keep a buffer around. Again, this is under application control.
|
||||
|
||||
In either case, the application must tell the compositor which area of the
|
||||
surface holds new contents. When the application renders directly to the shared
|
||||
buffer, the compositor needs to be noticed that there is new content. But also
|
||||
when exchanging buffers, the compositor doesn't assume anything changed, and
|
||||
needs a request from the application before it will repaint the desktop. The
|
||||
idea that even if an application passes a new buffer to the compositor, only a
|
||||
small part of the buffer may be different, like a blinking cursor or a spinner.
|
||||
|
||||
## Accelerated GPU Buffer Exchange
|
||||
|
||||
Clients
|
||||
[exchange](https://docs.kernel.org/userspace-api/dma-buf-alloc-exchange.html)
|
||||
GPU buffers with the compositor as dma-buf file descriptors, which are universal
|
||||
handles that are independent of any particular rendering API or memory
|
||||
allocator. The
|
||||
[linux-dmabuf-v1](https://gitlab.freedesktop.org/wayland/wayland-protocols/-/blob/main/stable/linux-dmabuf/linux-dmabuf-v1.xml)
|
||||
protocol is used to turn one or more dma-buf FDs into a
|
||||
[wl_buffer](https://wayland.app/protocols/wayland#wl_buffer).
|
||||
|
||||
If the client uses the
|
||||
[Vulkan](https://docs.vulkan.org/spec/latest/chapters/VK_KHR_surface/wsi.html)
|
||||
or
|
||||
[EGL](https://registry.khronos.org/EGL/extensions/EXT/EGL_EXT_platform_wayland.txt)
|
||||
(via
|
||||
[wayland-egl](https://gitlab.freedesktop.org/wayland/wayland/-/tree/main/egl))
|
||||
window-system integration (WSI), this is done transparently by the WSI.
|
||||
|
||||
Clients can alternatively allocate and import dma-bufs themselves using the GBM
|
||||
library, Vulkan, udmabuf, or dma-buf heaps.
|
||||
|
||||
- Using GBM, the client can allocate a gbm_bo and export one or more dma-buf FDs
|
||||
from it.
|
||||
|
||||
- Using Vulkan, the client can create a VkDeviceMemory object and use
|
||||
[VK_EXT_external_memory_dma_buf](https://docs.vulkan.org/refpages/latest/refpages/source/VK_EXT_external_memory_dma_buf.html)
|
||||
and
|
||||
[VK_EXT_image_drm_format_modifier](https://docs.vulkan.org/refpages/latest/refpages/source/VK_EXT_image_drm_format_modifier.html)
|
||||
to export a dma-buf FD from it.
|
||||
|
||||
- [udmabuf](https://lwn.net/Articles/749206/) can be used to create dma-buf FDs
|
||||
from linear host memory.
|
||||
|
||||
- [Dma-buf heaps](https://docs.kernel.org/userspace-api/dma-buf-heaps.html) can
|
||||
be used by privileged applications to create dma-buf FDs on embedded devices.
|
||||
|
||||
Compositors use
|
||||
[VK_EXT_external_memory_dma_buf](https://docs.vulkan.org/refpages/latest/refpages/source/VK_EXT_external_memory_dma_buf.html)
|
||||
and
|
||||
[VK_EXT_image_drm_format_modifier](https://docs.vulkan.org/refpages/latest/refpages/source/VK_EXT_image_drm_format_modifier.html)
|
||||
or
|
||||
[EGL_EXT_image_dma_buf_import](https://registry.khronos.org/EGL/extensions/EXT/EGL_EXT_image_dma_buf_import.txt)
|
||||
and
|
||||
[EGL_EXT_image_dma_buf_import_modifiers](https://registry.khronos.org/EGL/extensions/EXT/EGL_EXT_image_dma_buf_import_modifiers.txt)
|
||||
to import the dma-bufs provided by the client into their own Vulkan or EGL
|
||||
renderers.
|
||||
|
||||
Clients do not need to wait for the GPU to finish rendering before submitting
|
||||
dma-bufs to the compositor. Clients can use the
|
||||
[linux-drm-syncobj-v1](https://gitlab.freedesktop.org/wayland/wayland-protocols/-/blob/main/staging/linux-drm-syncobj/linux-drm-syncobj-v1.xml)
|
||||
protocol to exchange DRM synchronization objects with the compositor. These
|
||||
objects are used to asynchronously signal ownership transfer of buffers from
|
||||
clients to the compositor and vice versa. The WSIs do this transparently.
|
||||
|
||||
If the linux-drm-syncobj-v1 protocol is not supported by the compositor, clients
|
||||
and compositors can use the
|
||||
[DMA_BUF_IOCTL_EXPORT_SYNC_FILE](https://docs.kernel.org/driver-api/dma-buf.html#c.dma_buf_export_sync_file)
|
||||
and
|
||||
[DMA_BUF_IOCTL_IMPORT_SYNC_FILE](https://docs.kernel.org/driver-api/dma-buf.html#c.dma_buf_import_sync_file)
|
||||
ioctls to access and create implicit synchronization barriers.
|
||||
|
||||
## Display Programming
|
||||
|
||||
Compositors enumerate DRM KMS devices using
|
||||
[udev](https://en.wikipedia.org/wiki/Udev). Udev also notifies compositors of
|
||||
KMS device and display hotplug events.
|
||||
|
||||
Access to DRM KMS device ioctls is privileged. Since compositors usually run as
|
||||
unprivileged applications, they typically gain access to a privileged file
|
||||
descriptor using the
|
||||
[TakeDevice](https://www.freedesktop.org/software/systemd/man/latest/org.freedesktop.login1.html#Session%20Objects)
|
||||
method provided by logind.
|
||||
|
||||
Using the file descriptor, compositors use KMS
|
||||
[ioctls](https://docs.kernel.org/gpu/drm-kms.html) to enumerate the available
|
||||
displays.
|
||||
|
||||
Compositors use [atomic mode
|
||||
setting](https://docs.kernel.org/gpu/drm-kms.html#atomic-mode-setting) to change
|
||||
the buffer shown by the display, to change the display's resolution, to enable
|
||||
or disable HDR, and so on.
|
||||
|
|
@ -1,100 +0,0 @@
|
|||
# Color management
|
||||
|
||||
## Overview
|
||||
|
||||
Color management in Wayland considers only displays. All pictures in Wayland are
|
||||
always display-referred, meaning that the pixel values are intended as-is for
|
||||
some specific display where they would produce the light emissions
|
||||
([stimuli](https://cie.co.at/eilvterm/17-23-002)) the picture's author desired.
|
||||
Wayland does not support displaying "raw" camera or scanner images as they are
|
||||
not display-referred, nor are they even pictures without complex and subjective
|
||||
processing.
|
||||
|
||||
Stimuli — the picture itself — are only half of the picture reproduction. The
|
||||
other half is the environment where a display is viewed. A striking example is
|
||||
comparing a brightly lit office to a dark movie theater, the stimuli required to
|
||||
produce a good reading of the picture is greatly different. Therefore
|
||||
display-referred does not include only the display but the viewing environment
|
||||
as well.
|
||||
|
||||
Window systems have been very well capable of operating without any explicit
|
||||
consideration to color management. This is because there used to be the implicit
|
||||
assumption of the standard display, the sRGB display, which all computer
|
||||
monitors implemented, more or less. The viewing environment was and still is
|
||||
accounted by adjusting the display and/or the room to produce a workable
|
||||
experience. Pictures are authored on a computer system by drawing, painting and
|
||||
adjusting the picture until it looks right on the author's monitor. This
|
||||
implicitly builds the standard display and environment assumption into the
|
||||
picture data. Deviations from the sRGB specification were minor enough that they
|
||||
often did not matter if not in a professional context like the printing
|
||||
industry. Displaying video material required some more attention to the details,
|
||||
because video and television standards differ enough from the sRGB display. What
|
||||
really made explicit color management a hard requirement for entertainment is
|
||||
the coming of wide color gamut (WCG) and high dynamic range (HDR) materials and
|
||||
displays.
|
||||
|
||||
The color management design in Wayland follows the general Wayland design
|
||||
principles: compositors tell clients what would be the optimal thing to do,
|
||||
clients tell the compositors what kind of pictures they are actually producing,
|
||||
and then compositors display those pictures the best they can.
|
||||
|
||||
## Protocol Interfaces
|
||||
|
||||
Color management interfaces in Wayland and divided into two protocols:
|
||||
[color-management](https://gitlab.freedesktop.org/wayland/wayland-protocols/-/tree/main/staging/color-management?ref_type=heads)
|
||||
and
|
||||
[color-representation](https://gitlab.freedesktop.org/wayland/wayland-protocols/-/tree/main/staging/color-representation?ref_type=heads).
|
||||
They are designed to work together, but they can also be used independently when
|
||||
the other one is not needed.
|
||||
|
||||
### Color-management
|
||||
|
||||
Color management protocol has two main purposes. First, it puts the
|
||||
responsibility of color management on the compositor. This means that clients do
|
||||
not necessarily need to care about color management at all, and can display just
|
||||
fine by using the traditional standard display assumption even when the actual
|
||||
display is wildly different. Clients can also choose to target some other
|
||||
assumed display and let the compositor handle it, or they can explicitly render
|
||||
for the actual display at hand. Second, when the window system has multiple
|
||||
different monitors, and a wl_surface happens to span more than one monitor, the
|
||||
compositor can display the surface content correctly on all spanned monitors
|
||||
simultaneously, as much as physically possible.
|
||||
|
||||
Color-management protocol concentrates on colorimetry: when you have a pixel
|
||||
with RGB values, what stimulus do those values represent. The stimulus
|
||||
definition follows the CIE 1931 two-degree observer model. Some core concepts
|
||||
here are color primaries, white point, transfer function, and dynamic range. The
|
||||
viewing environment is represented in an extremely simplified way as the
|
||||
reference white luminance. The connection between pixel RGB values and stimulus
|
||||
plus viewing environment is recorded in an _image description_ object. Clients
|
||||
can create image description objects and tag `wl_surface`s with them, to
|
||||
indicate what kind of surface content there will be. Clients can also ask what
|
||||
image description the compositor would prefer to have on the `wl_surface`, and
|
||||
that preference can change over time, e.g. when the `wl_surface` is moved from
|
||||
one `wl_output` to another. Following the compositor's preference may provide
|
||||
advantages in image quality and power consumption.
|
||||
|
||||
Image description objects can come in two flavors: parametric and ICC-based. The
|
||||
above was written with parametric image descriptions in mind, and they have
|
||||
first-class support for HDR. ICC-based image descriptions are wrapping an ICC
|
||||
profile and have no other data. ICC profiles are the standard tool for standard
|
||||
dynamic range (SDR) display color management. This means the capabilities
|
||||
between the two flavors differ, and one cannot always be replaced by the other.
|
||||
Compositor support for each flavor is optional.
|
||||
|
||||
### Color-representation
|
||||
|
||||
Color-representation protocol deals with (potentially sub-sampled) YCbCr-RGB
|
||||
conversion, quantization range, and the inclusion of alpha in the RGB color
|
||||
channels, a.k.a. pre-multiplication. There are several different specifications
|
||||
on how an YCbCr-like (including ICtCp) signal, with chroma sub-sampling or not,
|
||||
is created from a full-resolution RGB image. Again, a client can tag a
|
||||
`wl_surface` with color-representation metadata to tell the compositor what kind
|
||||
of pixel data will be displayed through the wl_surface.
|
||||
|
||||
The main purpose of color-representation is to correctly off-load the YCbCr-RGB
|
||||
conversion to the compositor, which can then opportunistically off-load it
|
||||
further to very power-efficient fixed-function circuitry in a display
|
||||
controller. This can significantly reduce power consumption when watching videos
|
||||
compared to using a GPU for the same, and on some embedded hardware platforms it
|
||||
is a hard requirement for processing high resolution video.
|
||||
|
|
@ -1,76 +0,0 @@
|
|||
# Types of Compositors
|
||||
|
||||
Compositors come in different types, depending on which role they play in the
|
||||
overall architecture of the OS. For instance, a [system
|
||||
compositor](#system-compositor) can be used for booting the system, handling
|
||||
multiple user switching, a possible console terminal emulator and so forth. A
|
||||
different compositor, a [session compositor](#session-compositor) would provide
|
||||
the actual desktop environment. There are many ways for different types of
|
||||
compositors to co-exist.
|
||||
|
||||
In this section, we introduce three types of Wayland compositors relying on
|
||||
[libwayland-server](https://gitlab.freedesktop.org/wayland/wayland).
|
||||
|
||||
## System Compositor
|
||||
|
||||
A system compositor can run from early boot until shutdown. It effectively
|
||||
replaces the kernel vt system, and can tie in with the systems graphical boot
|
||||
setup and multiseat support.
|
||||
|
||||
A system compositor can host different types of session compositors, and let us
|
||||
switch between multiple sessions (fast user switching, or secure/personal
|
||||
desktop switching).
|
||||
|
||||
A linux implementation of a system compositor will typically use libudev, egl,
|
||||
kms, evdev and cairo.
|
||||
|
||||
For fullscreen clients, the system compositor can reprogram the video scanout
|
||||
address to read directly from the client provided buffer.
|
||||
|
||||
## Session Compositor
|
||||
|
||||
A session compositor is responsible for a single user session. If a system
|
||||
compositor is present, the session compositor will run nested under the system
|
||||
compositor. Nesting is feasible because the protocol is asynchronous; roundtrips
|
||||
would be too expensive when nesting is involved. If no system compositor is
|
||||
present, a session compositor can run directly on the hardware.
|
||||
|
||||
X applications can continue working under a session compositor by means of a
|
||||
root-less X server that is activated on demand.
|
||||
|
||||
Possible examples for session compositors include
|
||||
|
||||
- gnome-shell
|
||||
|
||||
- moblin
|
||||
|
||||
- kwin
|
||||
|
||||
- kmscon
|
||||
|
||||
- rdp session
|
||||
|
||||
- Weston with X11 or Wayland backend is a session compositor nested in another
|
||||
session compositor.
|
||||
|
||||
- fullscreen X session under Wayland
|
||||
|
||||
## Embedding Compositor
|
||||
|
||||
X11 lets clients embed windows from other clients, or lets clients copy pixmap
|
||||
contents rendered by another client into their window. This is often used for
|
||||
applets in a panel, browser plugins and similar. Wayland doesn't directly allow
|
||||
this, but clients can communicate GEM buffer names out-of-band, for example,
|
||||
using D-Bus, or command line arguments when the panel launches the applet.
|
||||
Another option is to use a nested Wayland instance. For this, the Wayland server
|
||||
will have to be a library that the host application links to. The host
|
||||
application will then pass the Wayland server socket name to the embedded
|
||||
application, and will need to implement the Wayland compositor interface. The
|
||||
host application composites the client surfaces as part of its window, that is,
|
||||
in the web page or in the panel. The benefit of nesting the Wayland server is
|
||||
that it provides the requests the embedded client needs to inform the host about
|
||||
buffer updates and a mechanism for forwarding input events from the host
|
||||
application.
|
||||
|
||||
An example for this kind of setup is firefox embedding the flash player as a
|
||||
kind of special-purpose compositor.
|
||||
|
|
@ -1,214 +0,0 @@
|
|||
# Content Updates
|
||||
|
||||
## Overview
|
||||
|
||||
In the Wayland protocol, requests are asynchronous but take effect immediately
|
||||
when the compositor receives them. However, some requests on surfaces are not
|
||||
applied immediately but are instead double-buffered to allow atomic changes.
|
||||
These double-buffered changes are committed through the wl_surface.commit
|
||||
request, which creates a Content Update.
|
||||
|
||||
Content Updates encapsulate all double-buffered state changes and can be applied
|
||||
by the compositor. The complexity arises when considering subsurfaces, which can
|
||||
operate in synchronized mode. When a subsurface is synchronized, its Content
|
||||
Updates must be applied atomically together with the parent surface's state.
|
||||
This synchronization can extend through an entire tree of subsurfaces, where
|
||||
child subsurfaces inherit the synchronized behavior from their parents.
|
||||
|
||||
Historically, Content Updates from synchronized subsurfaces were merged into the
|
||||
pending state of the parent surface on commit. However, the introduction of
|
||||
constraints—which can defer the application of Content Updates—necessitated a
|
||||
more sophisticated model. This led to the implementation of per-surface queues
|
||||
of Content Updates, with dependencies between Content Updates across different
|
||||
queues. This queuing model maintains backwards compatibility with the earlier
|
||||
approach of merging Content Updates into the parent's pending state on commit.
|
||||
|
||||
The core protocol defines the semantics of Content Updates using per-surface
|
||||
queues, but compositors that do not need to support constraints may implement
|
||||
the simpler legacy model where synchronized subsurface states are merged
|
||||
directly into the parent's pending state.
|
||||
|
||||
## Rules
|
||||
|
||||
The core protocol specifies the behavior in wl_subsurface and wl_surface.commit.
|
||||
The behavior can be summarized by the following rules:
|
||||
|
||||
1. Content Updates (CU) contain all double-buffered state of the surface and
|
||||
selected state from their direct children.
|
||||
|
||||
2. Surfaces which are effectively synchronized create Synchronized Content
|
||||
Updates (SCU), otherwise they create Desync Content Updates (DCU).
|
||||
|
||||
3. When a CU is created, it gets a dependency on the previous CU of the same
|
||||
queues (if it exists).
|
||||
|
||||
4. When a CU is created, it gets a dependency on the last SCU of direct child
|
||||
surfaces that are not reachable (if they exists).
|
||||
|
||||
5. The CUs and their dependencies form a DAG, where CUs are nodes and
|
||||
dependencies are edges.
|
||||
|
||||
6. All DCUs starting from the front of the queues until the first SCU or the
|
||||
back of the queue is reached are candidates.
|
||||
|
||||
7. If the maximal DAG that's reachable from a candidate (candidate DAG) does not
|
||||
have any constraints, then this DAG can be applied.
|
||||
|
||||
8. A DAG is applied atomically by recursively applying a content update without
|
||||
dependencies and removing it from the DAG.
|
||||
|
||||
9. Surfaces transition from effectively sync to effectively desync after their
|
||||
parents.
|
||||
|
||||
10. When a surface transitions to effectively desync, all SCUs in its queue
|
||||
which are not reachable by a DCU become DCUs.
|
||||
|
||||
## Examples
|
||||
|
||||
These examples should help to build an intuition for how content updates
|
||||
actually behave. They cover the interesting edge cases, such as subsurfaces with
|
||||
constraints, and transitioning from a sync subsurface to a desync one.
|
||||
|
||||
In all the examples below, the surface T1 refers to a toplevel surface, SS1
|
||||
refers to a sub-surface which is a child of T1, and SS2 refers to a sub-surface
|
||||
which is a child of SS1.
|
||||
|
||||
### Legend
|
||||
|
||||
|
||||
|
||||
### Simple Desynchronized Case
|
||||
|
||||
1. SS2 is effectively desynchronized and commits. This results in the
|
||||
desynchronized content update (DCU) _1_.
|
||||
|
||||
|
||||
|
||||
2. DCU _1_ is a candidate, and the candidate DAG reachable from DCU _1_ is only DCU
|
||||
_1_ itself. DCU _1_ and thus the candidate DAG does not have any constraints and
|
||||
can be applied.
|
||||
|
||||
|
||||
|
||||
3. The content updates of the candidate DAG get applied to the surface atomically.
|
||||
|
||||
|
||||
|
||||
4. T1 commits a DCU with a _buffer-sync_ constraint. It is a candidate but its DAG
|
||||
can't be applied because it contains a constraint.
|
||||
|
||||
|
||||
|
||||
5. T1 commits another CU (DCU _3_) which is added at the end of the queue, with a
|
||||
dependency to the previous CU (DCU _2_). Both DCU _2_ and DCU _3_ are
|
||||
candidates, but both DAGs contain DCU _2_ with a constraint, and can't be
|
||||
applied.
|
||||
|
||||
|
||||
|
||||
6. When the constraint gets cleared, both DAGs can be applied to the surface
|
||||
atomitcally (either only _2_, or _2_ and _3_).
|
||||
|
||||
|
||||
|
||||
### Simple Synchronized Case
|
||||
|
||||
1. SS1 and SS2 are effectively synchronized. SS2 commits SCU _1_.
|
||||
|
||||
|
||||
|
||||
2. SS1 commits SCU _2_. The direct child surfaces SS2 has the last SCU _1_ in its
|
||||
queue, which is not reachable. This creates a dependency from SCU _2_ to SCU
|
||||
_1_.
|
||||
|
||||
|
||||
|
||||
3. SS1 commits SCU _3_. The direct child surfaces SS2 has the last SCU _1_ in its
|
||||
queue, which is already reachable by SCU _2_. No dependency to SCU _1_ is
|
||||
created. A dependency to the previous CU of the same queue (SCU _2_) is created.
|
||||
|
||||
|
||||
|
||||
4. T1 commit DCU _4_. It is a candidate, its DAG does not contain any constraint
|
||||
and it can be applied.
|
||||
|
||||
|
||||
|
||||
5. The DAG gets applied to the surfaces atomically.
|
||||
|
||||
|
||||
|
||||
### Complex Synchronized Subsurface Case 1
|
||||
|
||||
1. Every DCU (_1_ and _6_) contain CUs with constraints in their candidate DAG
|
||||
|
||||
|
||||
|
||||
2. Waiting until the _buffer-sync_ constrain on CU _1_ is cleared, the candidate
|
||||
DAG of CU _1_ does not contain constraints and can be applied
|
||||
|
||||
|
||||
|
||||
3. That leaves the candidate DAG of CU _6_ which still contains another CU with a
|
||||
_buffer-sync_ constrain
|
||||
|
||||
|
||||
|
||||
4. Waiting until the _buffer-sync_ constrain on CU _6_ is cleared, the candidate
|
||||
DAG of _6_ does not contain CUs with constraints and can be applied.
|
||||
|
||||
|
||||
|
||||
5. There is no DCU left and no constraint remaining. Nothing more can be applied
|
||||
without a new CU.
|
||||
|
||||
|
||||
|
||||
### Complex Synchronized Subsurface Case 2
|
||||
|
||||
1. Both DCUs (_1_ and _6_) have a reachable DAG containing CU _1_ with a constraint
|
||||
|
||||
|
||||
|
||||
2. Waiting until the _buffer-sync_ constrain on _1_ is cleared, both DAGs contain
|
||||
no CU with constraints and can be applied in any order
|
||||
|
||||
|
||||
|
||||
3. That leaves the same state as in the previous case
|
||||
|
||||
|
||||
|
||||
### Synchronized to Desynchronized Subsurface
|
||||
|
||||
1. There is one DCU (_4_) with its reachable DAG that cannot be applied because CU
|
||||
_4_ contains a constraint
|
||||
|
||||
|
||||
|
||||
2. Surface _SS1_ transitions from effectively synchronized to effectively
|
||||
desynchronized. SCU _2_ is reachable by DCU _4_ so nothing changes.
|
||||
|
||||
|
||||
|
||||
3. Surface _SS1_ provides a new DCU (_5_) but because the CU before (_2_) is a
|
||||
Synchronized CU, it is not a candidate
|
||||
|
||||
|
||||
|
||||
### Synchronized to Desynchronized Transition
|
||||
|
||||
1. There are four SCUs and all surfaces are effectively synchronized.
|
||||
|
||||
|
||||
|
||||
2. Surface _SS1_ transitions to effectively desynchronized and SCU _2_ becomes a
|
||||
DCU because it is not reachable from a DCU
|
||||
|
||||
|
||||
|
||||
3. Surface _SS2_ transitions to effectively desynchronized. SCUs _3_ and _4_ become
|
||||
DCUs because they are not reachable from a DCU. SCU _1_ does not change because
|
||||
it is reachable by DCU _2_.
|
||||
|
||||
|
||||
|
|
@ -1,86 +0,0 @@
|
|||
<img style="display: block; margin: auto;" src="images/wayland.png">
|
||||
|
||||
# Preface
|
||||
|
||||
This document describes the Wayland architecture and Wayland model of operation.
|
||||
This document is aimed primarily at Wayland developers and those looking to
|
||||
program with it; it does not cover application development.
|
||||
|
||||
There have been many contributors to this document and since this is only the
|
||||
first edition many errors are expected to be found. We appreciate corrections.
|
||||
|
||||
Yours, the Wayland open-source community November 2012
|
||||
|
||||
## Protocol Documentation
|
||||
|
||||
This document does not describe the semantics of individual messages sent
|
||||
between compositors and clients. Consult the following documents to learn about
|
||||
concrete Wayland interfaces, requests, and events.
|
||||
|
||||
- [wayland.xml] - The official documentation of the core protocol.
|
||||
- [wayland-protocols] - Standardized Wayland extension protocols.
|
||||
- [wayland.app] - A community-maintained website that renders these protocols,
|
||||
and many more, as easily accessible HTML pages.
|
||||
|
||||
[wayland.xml]: https://gitlab.freedesktop.org/wayland/wayland/-/blob/main/protocol/wayland.xml
|
||||
[wayland-protocols]: https://gitlab.freedesktop.org/wayland/wayland-protocols
|
||||
[wayland.app]: https://wayland.app
|
||||
|
||||
## About the Book
|
||||
|
||||
This book is written in markdown and converted to HTML using
|
||||
[mdbook](https://rust-lang.github.io/mdBook).
|
||||
|
||||
It supports the [CommonMark](https://commonmark.org/) dialect of markdown plus a number of
|
||||
widely supported extensions:
|
||||
|
||||
- `~~strikethrough~~`
|
||||
- ```markdown
|
||||
footnotes[^note]
|
||||
|
||||
[^note]: text
|
||||
```
|
||||
- ```markdown
|
||||
| Tables | Header2 |
|
||||
|--------|---------|
|
||||
| abc | def |
|
||||
```
|
||||
- ```markdown
|
||||
- [x] Task lists
|
||||
- [ ] Incomplete task
|
||||
```
|
||||
- ```markdown
|
||||
definition lists
|
||||
: This is the definition of a
|
||||
definition list
|
||||
```
|
||||
- ```markdown
|
||||
> [!NOTE]
|
||||
> Admonitions
|
||||
```
|
||||
|
||||
The full list of extensions is documented
|
||||
[here](https://rust-lang.github.io/mdBook/format/markdown.html#extensions).
|
||||
|
||||
## Copyright
|
||||
|
||||
Copyright © 2012 Kristian Høgsberg
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and associated documentation files (the "Software"),
|
||||
to deal in the Software without restriction, including without limitation
|
||||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||
and/or sell copies of the Software, and to permit persons to whom the
|
||||
Software is furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice (including the next
|
||||
paragraph) shall be included in all copies or substantial portions of the
|
||||
Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.
|
||||
|
|
@ -1,73 +0,0 @@
|
|||
# Introduction
|
||||
|
||||
## Motivation
|
||||
|
||||
Most Linux and Unix-based systems rely on the X Window System (or simply _X_) as
|
||||
the low-level protocol for building bitmap graphics interfaces. On these
|
||||
systems, the X stack has grown to encompass functionality arguably belonging in
|
||||
client libraries, helper libraries, or the host operating system kernel. Support
|
||||
for things like PCI resource management, display configuration management,
|
||||
direct rendering, and memory management has been integrated into the X stack,
|
||||
imposing limitations like limited support for standalone applications,
|
||||
duplication in other projects (e.g. the Linux fb layer or the DirectFB project),
|
||||
and high levels of complexity for systems combining multiple elements (for
|
||||
example radeon memory map handling between the fb driver and X driver, or VT
|
||||
switching).
|
||||
|
||||
Moreover, X has grown to incorporate modern features like offscreen rendering
|
||||
and scene composition, but subject to the limitations of the X architecture. For
|
||||
example, the X implementation of composition adds additional context switches
|
||||
and makes things like input redirection difficult.
|
||||
|
||||
|
||||
|
||||
The diagram above illustrates the central role of the X server and compositor in
|
||||
operations, and the steps required to get contents on to the screen.
|
||||
|
||||
Over time, X developers came to understand the shortcomings of this approach and
|
||||
worked to split things up. Over the past several years, a lot of functionality
|
||||
has moved out of the X server and into client-side libraries or kernel drivers.
|
||||
One of the first components to move out was font rendering, with freetype and
|
||||
fontconfig providing an alternative to the core X fonts. Direct rendering OpenGL
|
||||
as a graphics driver in a client side library went through some iterations,
|
||||
ending up as DRI2, which abstracted most of the direct rendering buffer
|
||||
management from client code. Then cairo came along and provided a modern 2D
|
||||
rendering library independent of X, and compositing managers took over control
|
||||
of the rendering of the desktop as toolkits like GTK+ and Qt moved away from
|
||||
using X APIs for rendering. Recently, memory and display management have moved
|
||||
to the Linux kernel, further reducing the scope of X and its driver stack. The
|
||||
end result is a highly modular graphics stack.
|
||||
|
||||
## The compositing manager as the display server
|
||||
|
||||
Wayland is a new display server and compositing protocol, and Weston is the
|
||||
implementation of this protocol which builds on top of all the components above.
|
||||
We are trying to distill out the functionality in the X server that is still
|
||||
used by the modern Linux desktop. This turns out to be not a whole lot.
|
||||
Applications can allocate their own off-screen buffers and render their window
|
||||
contents directly, using hardware accelerated libraries like libGL, or high
|
||||
quality software implementations like those found in Cairo. In the end, what’s
|
||||
needed is a way to present the resulting window surface for display, and a way
|
||||
to receive and arbitrate input among multiple clients. This is what Wayland
|
||||
provides, by piecing together the components already in the eco-system in a
|
||||
slightly different way.
|
||||
|
||||
X will always be relevant, in the same way Fortran compilers and VRML browsers
|
||||
are, but it’s time that we think about moving it out of the critical path and
|
||||
provide it as an optional component for legacy applications.
|
||||
|
||||
Overall, the philosophy of Wayland is to provide clients with a way to manage
|
||||
windows and how their contents are displayed. Rendering is left to clients, and
|
||||
system wide memory management interfaces are used to pass buffer handles between
|
||||
clients and the compositing manager.
|
||||
|
||||
|
||||
|
||||
The figure above illustrates how Wayland clients interact with a Wayland server.
|
||||
Note that window management and composition are handled entirely in the server,
|
||||
significantly reducing complexity while marginally improving performance through
|
||||
reduced context switching. The resulting system is easier to build and extend
|
||||
than a similar X system, because often changes need only be made in one place.
|
||||
Or in the case of protocol extensions, two (rather than 3 or 4 in the X case
|
||||
where window management and/or composition handling may also need to be
|
||||
updated).
|
||||
|
|
@ -1,515 +0,0 @@
|
|||
# Message Definition Language
|
||||
|
||||
## Overview
|
||||
|
||||
The fundamentals of the Wayland protocol are explained in [Wayland Protocol and
|
||||
Model of Operation](Protocol.md). This chapter formally defines the language
|
||||
used to define Wayland protocols.
|
||||
|
||||
Wayland is an object-oriented protocol. Each object follows exactly one
|
||||
interface. An interface is a collection of message and enumeration definitions.
|
||||
A message can be either a request (sent by a client) or an event (sent by a
|
||||
server). A message can have arguments. All arguments are typed.
|
||||
|
||||
## XML Elements
|
||||
|
||||
### protocol
|
||||
|
||||
```
|
||||
protocol ::= (copyright?, description? interface+)
|
||||
```
|
||||
|
||||
`protocol` is the root element in a Wayland protocol XML file. Code generation
|
||||
tools may optionally use the protocol `name` in API symbol names. The XML file
|
||||
name should be similar to the protocol name.
|
||||
|
||||
The description element should be used to document the intended purpose of the
|
||||
protocol, give an overview, and give any development stage notices if
|
||||
applicable.
|
||||
|
||||
The copyright element should be used to indicate the copyrights and the license
|
||||
of the XML file.
|
||||
|
||||
**Required attributes**
|
||||
|
||||
`name`="`cname`"
|
||||
: The name of the protocol (a.k.a protocol extension). The name must start
|
||||
with one of the ASCII characters a-z, A-Z, or underscore, and the following
|
||||
characters may additionally include numbers 0-9.
|
||||
|
||||
The name should be globally unique. Protocols to be included in
|
||||
[wayland-protocols](https://gitlab.freedesktop.org/wayland/wayland-protocols)
|
||||
must follow the naming rules set there. Other protocols should use a unique
|
||||
prefix for the name, e.g. referring to the owning project's name.
|
||||
|
||||
### copyright
|
||||
|
||||
Parent elements: protocol
|
||||
|
||||
```
|
||||
copyright ::= #PCDATA
|
||||
```
|
||||
|
||||
Contains free-form, pre-formatted text for copyright and license notices.
|
||||
|
||||
### description
|
||||
|
||||
Parent elements: protocol, interface, request, event, arg, enum, entry
|
||||
|
||||
```
|
||||
description ::= #PCDATA
|
||||
```
|
||||
|
||||
Contains human-readable documentation for its parent element. May contain
|
||||
formatted text, including paragraphs and bulleted lists.
|
||||
|
||||
**Optional attributes**
|
||||
|
||||
`summary`="`summary`"
|
||||
: A short (half a line at most) description of the documented element.
|
||||
|
||||
When a description element is used, it is recommended to not use the
|
||||
`summary` attribute of the parent element.
|
||||
|
||||
### interface
|
||||
|
||||
Parent elements: protocol
|
||||
|
||||
```
|
||||
interface ::= (description?, (request|event|enum)+)
|
||||
```
|
||||
|
||||
An interface element contains the requests and events that form the interface.
|
||||
Enumerations can also be defined with enum elements. These all belong into the
|
||||
namespace of the interface. Code generation tools may use the interface `name`
|
||||
in API symbol names.
|
||||
|
||||
Interfaces form an ancestry tree. Aside from
|
||||
[wl_display](https://wayland.app/protocols/wayland#wl_display), new protocol
|
||||
objects are always created through an existing protocol object that may be
|
||||
referred to as _the factory object_. This can happen in one of two ways: the
|
||||
factory object's interface either defines or does not define the new object's
|
||||
interface.
|
||||
|
||||
When the factory interface defines the new object's interface, the new object
|
||||
also inherits the factory object's interface version number. This number defines
|
||||
the interface version of the new object. The factory object is referred to as
|
||||
_the parent object_ and the factory interface is referred to as _the parent
|
||||
interface_. This forms the ancestry tree of interfaces.
|
||||
|
||||
When the factory interface does not define the new object's interface, both the
|
||||
interface name and the version must be communicated explicitly. The foremost
|
||||
example of this is
|
||||
[wl_registry.bind](https://wayland.app/protocols/wayland#wl_registry:request:bind).
|
||||
In this case the terms "parent" or "ancestor" are not used. Interfaces that are
|
||||
advertised through
|
||||
[wl_registry](https://wayland.app/protocols/wayland#wl_registry) are called
|
||||
_global interfaces_, or globals for short.
|
||||
|
||||
If objects having the interface can cause protocol errors, the protocol error
|
||||
codes must be defined within the interface with an enum element with its `name`
|
||||
set to `"error"`. Protocol error codes are always specific to the interface of
|
||||
the object referred to in
|
||||
[wl_display.error](https://wayland.app/protocols/wayland#wl_display:event:error).
|
||||
|
||||
The description element should be used to describe the purpose and the general
|
||||
usage of the interface.
|
||||
|
||||
**Required attributes**
|
||||
|
||||
`name`="`cname`"
|
||||
: The name of the interface. The name must start with one of the ASCII
|
||||
characters a-z, A-Z, or underscore, and the following characters may
|
||||
additionally include numbers 0-9. The name must be unique in the
|
||||
protocol, and preferably it should also be globally unique to avoid API
|
||||
conflicts in language bindings of multiple protocols.
|
||||
|
||||
Protocols to be included in
|
||||
[wayland-protocols](https://gitlab.freedesktop.org/wayland/wayland-protocols)
|
||||
must follow the interface naming rules set there. Other protocols should use
|
||||
a unique prefix for the name, e.g. referring to the owning project's name.
|
||||
|
||||
`version`="`V`"
|
||||
: The interface's latest version number `V` must be an integer greater than
|
||||
zero. An interface element defines all versions of the interface from 1 to
|
||||
`V` inclusive. The contents of each interface version are defined in each of
|
||||
the request, event, enum and entry elements using the attributes `since` and
|
||||
`deprecated-since`, and in the specification text.
|
||||
|
||||
When an interface is extended, the version number must be incremented on all
|
||||
the interfaces part of the same interface ancestry tree. The exception to
|
||||
this rule are interfaces which are forever stuck to version 1, which is
|
||||
usually caused by having multiple parent interfaces with independent
|
||||
ancestor global interfaces. In this case, the `frozen="true"` attribute
|
||||
described below should be used.
|
||||
|
||||
A protocol object may have any defined version of the interface. The version
|
||||
of the object is determined at runtime either by inheritance from another
|
||||
protocol object or explicitly.
|
||||
|
||||
It is possible for a protocol object to have a version higher than defined
|
||||
by its interface. This may happen when the interface is stuck at version 1
|
||||
as per above. It may also happen when a protocol XML file has not been
|
||||
thoroughly updated as required. In such cases the object shall function as
|
||||
with the highest defined interface version.
|
||||
|
||||
**Optional attributes**
|
||||
|
||||
`frozen`="`true`"
|
||||
: The interface is frozen and forever stuck at version 1.
|
||||
|
||||
This attribute should be applied to interfaces that have multiple parent
|
||||
interfaces with independent ancestor global interfaces, for example
|
||||
`wl_buffer` and `wl_callback`.
|
||||
|
||||
### request
|
||||
|
||||
Parent elements: interface
|
||||
|
||||
```
|
||||
request ::= (description?, arg*)
|
||||
```
|
||||
|
||||
Defines a request, a message from a client to a server. Requests are always
|
||||
associated with a specific protocol object.
|
||||
|
||||
Requests are automatically assigned opcodes in the order they appear inside the
|
||||
interface element. Therefore the only backwards-compatible way to add requests
|
||||
to an interface is to add them to the end. Any event elements do not interfere
|
||||
with request opcode assignments.
|
||||
|
||||
The arg elements declare the request's arguments. There can be 0 to 20 arguments
|
||||
for a request. The order of arg inside the request element defines the order of
|
||||
the arguments on the wire. All declared arguments are mandatory, and extra
|
||||
arguments are not allowed on the wire.
|
||||
|
||||
The description element should be used to document the request.
|
||||
|
||||
**Required attributes**
|
||||
|
||||
`name`="`cname`"
|
||||
: The name of the request. The name must start with one of the ASCII
|
||||
characters a-z, A-Z, or underscore, and the following characters may
|
||||
additionally include numbers 0-9. The name must be unique within
|
||||
all requests and events in the containing interface.
|
||||
|
||||
Code and language binding generators may use the name in the API they
|
||||
create. The `name` of the containing interface provides the namespace for
|
||||
requests.
|
||||
|
||||
**Optional attributes**
|
||||
|
||||
`type`="`destructor`"
|
||||
: When this attribute is present, the request is a destructor: it shall
|
||||
destroy the protocol object it is sent on. Protocol IPC libraries may use
|
||||
this for bookkeeping protocol object lifetimes.
|
||||
|
||||
Libwayland-client uses this information to ignore incoming events for
|
||||
destroyed protocol objects. Such events may occur due to a natural race
|
||||
condition between the client destroying a protocol object and the server
|
||||
sending events before processing the destroy request.
|
||||
|
||||
`since`="`S`"
|
||||
: `S` must be an integer greater than zero. If `since` is not specified,
|
||||
`since="1"` is assumed.
|
||||
|
||||
This request was added in interface `version` `S`. The request does not
|
||||
exist if the protocol object has a bound version smaller than `S`. Attempts
|
||||
to use it in such a case shall raise the protocol error
|
||||
`wl_display.error.invalid_method`.
|
||||
|
||||
`deprecated-since`="`D`"
|
||||
: `D` must be an integer greater than the value of `since`. If
|
||||
`deprecated-since` is not specified, then the request is not deprecated in
|
||||
any version of the containing interface.
|
||||
|
||||
This request was deprecated in interface `version` `D` and above, and should
|
||||
not be sent on protocol objects of such version. This is informational.
|
||||
Compositors must still be prepared to handle the request unless specified
|
||||
otherwise.
|
||||
|
||||
### event
|
||||
|
||||
Parent elements: interface
|
||||
|
||||
```
|
||||
event ::= (description?, arg*)
|
||||
```
|
||||
|
||||
Defines an event, a message from a server to a client. Events are always
|
||||
associated with a specific protocol object.
|
||||
|
||||
Events are automatically assigned opcodes in the order they appear inside the
|
||||
interface element. Therefore the only backwards-compatible way to add events to
|
||||
an interface is to add them to the end. Any request elements do not interfere
|
||||
with event opcode assignments.
|
||||
|
||||
The arg elements declare the event's arguments. There can be 0 to 20 arguments
|
||||
for an event. The order of arg inside the event element defines the order of the
|
||||
arguments on the wire. All declared arguments are mandatory, and extra arguments
|
||||
are not allowed on the wire.
|
||||
|
||||
The description element should be used to document the event.
|
||||
|
||||
**Required attributes**
|
||||
|
||||
`name`="`cname`"
|
||||
: The name of the event. The name must start with one of the ASCII characters
|
||||
a-z, A-Z, or underscore, and the following characters may additionally
|
||||
include numbers 0-9. The name must be unique within all requests and events
|
||||
in the containing interface.
|
||||
|
||||
Code and language binding generators may use the name in the API they
|
||||
create. The `name` of the containing interface provides the namespace for
|
||||
events.
|
||||
|
||||
**Optional attributes**
|
||||
|
||||
`type`="`destructor`"
|
||||
: When this attribute is present, the event is a destructor: it shall destroy
|
||||
the protocol object it is sent on. Protocol IPC libraries may use this for
|
||||
bookkeeping protocol object lifetimes.
|
||||
|
||||
> [!WARNING]
|
||||
> Destructor events are an underdeveloped feature in Wayland. They can be
|
||||
> used only on client-created protocol objects, and it is the protocol
|
||||
> designer's responsibility to design such a message exchange that race
|
||||
> conditions cannot occur. The main problem would be a client sending a
|
||||
> request at the same time as the server is sending a destructor event. The
|
||||
> server will consider the protocol object to be already invalid or even
|
||||
> recycled when it proceeds to process the request. This often results in
|
||||
> protocol errors, but under specific conditions it might also result in
|
||||
> silently incorrect behavior.
|
||||
>
|
||||
> Destructor events should not be used in new protocols. If a destructor
|
||||
> event is necessary, the simplest way to avoid these problems is to have
|
||||
> the interface not contain any requests.
|
||||
|
||||
`since`="`S`"
|
||||
: `S` must be an integer greater than zero. If `since` is not specified,
|
||||
`since="1"` is assumed.
|
||||
|
||||
This event was added in interface `version` `S`. The event does not exist if
|
||||
the protocol object has a bound version smaller than `S`.
|
||||
|
||||
`deprecated-since`="`D`"
|
||||
: `D` must be an integer greater than the value of `since`. If
|
||||
`deprecated-since` is not specified, then the event is not deprecated in any
|
||||
version of the containing interface.
|
||||
|
||||
This event was deprecated in interface `version` `D` and above, and should
|
||||
not be sent on protocol objects of such version. This is informational.
|
||||
Clients must still be prepared to receive this event unless otherwise
|
||||
specified.
|
||||
|
||||
### arg
|
||||
|
||||
Parent elements: request, event
|
||||
|
||||
```
|
||||
arg ::= description?
|
||||
```
|
||||
|
||||
This element declares one argument for the request or the event.
|
||||
|
||||
**Required attributes**
|
||||
|
||||
`name`="`cname`"
|
||||
: The name of the argument. The name must start with one of the ASCII
|
||||
characters a-z, A-Z, or underscore, and the following characters may
|
||||
additionally include numbers 0-9. The name must be unique within
|
||||
all the arguments of the parent element.
|
||||
|
||||
`type`="`T`"
|
||||
: The type `T` of the argument datum must be one of:
|
||||
|
||||
`int`
|
||||
: 32-bit signed integer.
|
||||
|
||||
`uint`
|
||||
: 32-bit unsigned integer.
|
||||
|
||||
`fixed`
|
||||
: Signed 24.8-bit fixed-point value.
|
||||
|
||||
`string`
|
||||
: UTF-8 encoded string value, NUL byte terminated. Interior NUL bytes are
|
||||
not allowed.
|
||||
|
||||
`array`
|
||||
: A byte array of arbitrary data.
|
||||
|
||||
`fd`
|
||||
: A file descriptor.
|
||||
|
||||
The file descriptor must be open and valid on send. It is not possible
|
||||
to pass a null value.
|
||||
|
||||
`new_id`
|
||||
: Creates a new protocol object. A request or an event may have at most
|
||||
one `new_id` argument.
|
||||
|
||||
If `interface` is specified, the new protocol object shall have the
|
||||
specified interface, and the new object's (interface) version shall be
|
||||
the version of the object on which the request or event is being sent.
|
||||
|
||||
If `interface` is not specified, the request shall implicitly have two
|
||||
additional arguments: A `string` for an interface name, and a `uint` for
|
||||
the new object's version. Leaving the interface unspecified is reserved
|
||||
for special use,
|
||||
[wl_registry.bind](https://wayland.app/protocols/wayland#wl_registry:request:bind)
|
||||
for example.
|
||||
|
||||
> [!NOTE]
|
||||
> An event argument must always specify the `new_id` `interface`.
|
||||
|
||||
`object`
|
||||
: Reference to an existing protocol object.
|
||||
|
||||
The attribute `interface` should be specified. Otherwise IPC libraries
|
||||
cannot enforce the interface, and checking the interface falls on user
|
||||
code and specification text.
|
||||
|
||||
**Optional attributes**
|
||||
|
||||
`summary`="`summary`"
|
||||
: A short (half a line at most) description. This attribute should not be used
|
||||
if a description is used.
|
||||
|
||||
`interface`="`iface`"
|
||||
: If given, `iface` must be the `name` of some interface, and `type` of this
|
||||
argument must be either `"object"` or `"new_id"`. This indicates that the
|
||||
existing or new object must have the interface `iface`. Use for other
|
||||
argument types is forbidden.
|
||||
|
||||
> [!NOTE]
|
||||
> If an interface from another protocol is used, then this creates a
|
||||
> dependency between the protocols. If an application generates code for one
|
||||
> protocol, then it must also generate code for all dependencies. Therefore
|
||||
> this would not be a backwards compatible change.
|
||||
|
||||
`allow-null`="`true`" | "`false`"
|
||||
: Whether the argument value can be null on send. Defaults to `"false"`,
|
||||
meaning it is illegal to send a null value. Can be used only when `type` is
|
||||
`"string"` or `"object"`.
|
||||
|
||||
> [!NOTE]
|
||||
> Even though this attribute can be used to forbid a compositor from sending
|
||||
> a null object as an event argument, an IPC library implementation may not
|
||||
> protect the client from receiving a null object. This can happen with
|
||||
> libwayland-client when the client has destroyed the protocol object before
|
||||
> dispatching an event that referred to it in an argument.
|
||||
|
||||
`enum`="`enum-cname-suffix`"
|
||||
: If specified, indicates that the argument value should come from the enum
|
||||
named `enum-cname-suffix`. If the enumeration is a bitfield, then `type`
|
||||
must be `"uint"`. Otherwise `type` must be either `"uint"` or `"int"`.
|
||||
|
||||
The name `enum-cname-suffix` refers to an enum in the same interface by
|
||||
default. If it is necessary to refer to an enumeration from another
|
||||
interface, the interface name can be given with a period:
|
||||
|
||||
```
|
||||
`enum`="`iface`.`enum-cname-suffix`"
|
||||
```
|
||||
|
||||
> [!NOTE]
|
||||
> This attribute alone does not automatically restrict the legal values for
|
||||
> this argument. If values from outside of the enumeration need to be
|
||||
> forbidden, that must be specified explicitly in the documentation.
|
||||
>
|
||||
> A common design pattern is to have the server advertise the supported
|
||||
> enumeration or bit values with events and explicitly forbid clients from
|
||||
> using any other values in requests. This also requires a protocol error
|
||||
> code to be specified with the error enum to be raised if a client uses an
|
||||
> illegal value, see [interface](#interface).
|
||||
|
||||
### enum
|
||||
|
||||
Parent elements: protocol
|
||||
|
||||
```
|
||||
enum ::= (description?, entry*)
|
||||
```
|
||||
|
||||
This tag defines an enumeration of integer values. Enumerations are merely a
|
||||
syntactic construct to give names to arbitrary integer constants. Each constant
|
||||
is listed as an entry with its name. There are two types of enumerations:
|
||||
regular enumerations and bitfields.
|
||||
|
||||
Regular enumerations do not use `bitfield` attribute, or they set it to
|
||||
`"false"`. The set of pre-defined values that belong to a regular enumeration is
|
||||
exactly the set of values listed as entry elements after the protocol object
|
||||
version is taken into account. See the entry attributes `since` and
|
||||
`deprecated-since`.
|
||||
|
||||
Bitfields set `bitfield` to `"true"`. The set of values that belong to a
|
||||
bitfield enumeration are all the values that can be formed by the bitwise-or
|
||||
operator from the set of values listed as entry elements like in the regular
|
||||
enumeration. Usually also zero is implicitly included.
|
||||
|
||||
All the values in a regular enumeration must be either signed or unsigned 32-bit
|
||||
integers. All the values in a bitfield enumeration must be unsigned 32-bit
|
||||
integers.
|
||||
|
||||
**Required attributes**
|
||||
|
||||
`name`="`cname-suffix`"
|
||||
: The name of the enumeration. The name must contain only the ASCII characters
|
||||
a-z, A-Z, 0-9, or underscore. The name cannot be empty. The name must be
|
||||
unique within all enumerations in the containing interface. The name is used
|
||||
as the namespace for all the contained entry elements.
|
||||
|
||||
**Optional attributes**
|
||||
|
||||
`since`="`S`"
|
||||
: `S` must be an integer greater than zero. If `since` is not specified,
|
||||
`since="1"` is assumed.
|
||||
|
||||
This enumeration was added in interface `version` `S`. The enumeration does
|
||||
not exist if the protocol object has a bound version smaller than `S`.
|
||||
|
||||
`bitfield`="`true`" | "`false`"
|
||||
: Specifies if this enumeration is a bitfield. Defaults to `"false"`.
|
||||
|
||||
### entry
|
||||
|
||||
Parent elements: enum
|
||||
|
||||
```
|
||||
entry ::= description?
|
||||
```
|
||||
|
||||
Defines a name for an integer constant and makes it part of the set of values of
|
||||
the containing enumeration.
|
||||
|
||||
**Required attributes**
|
||||
|
||||
`name`="`cname-suffix`"
|
||||
: The name of a value in an enumeration. The name must contain only the ASCII
|
||||
characters a-z, A-Z, 0-9, or underscore. The name cannot be empty. The name
|
||||
must be unique within all entry elements in the containing enum.
|
||||
|
||||
`value`="`V`"
|
||||
: An integer value. The value can be given in decimal, hexadecimal, or octal
|
||||
representation.
|
||||
|
||||
**Optional attributes**
|
||||
|
||||
`summary`="`summary`"
|
||||
: A short (half a line at most) description. This attribute should not be used
|
||||
if a description is used.
|
||||
|
||||
`since`="`S`"
|
||||
: `S` must be an integer greater than zero. If `since` is not specified,
|
||||
`since="1"` is assumed.
|
||||
|
||||
This value was added in interface `version` `S`.
|
||||
|
||||
`deprecated-since`="`D`"
|
||||
: `D` must be an integer greater than the value of `since`. If
|
||||
`deprecated-since` is not specified, then the value is not deprecated in any
|
||||
version of the containing interface.
|
||||
|
||||
This value was removed in interface `version` `D`. This does not make the
|
||||
value automatically illegal to use, see [arg](#arg) attribute `enum`.
|
||||
|
|
@ -1,371 +0,0 @@
|
|||
# Wayland Protocol and Model of Operation
|
||||
|
||||
## Basic Principles
|
||||
|
||||
The Wayland protocol is an asynchronous object oriented protocol. All requests
|
||||
are method invocations on some object. The requests include an object ID that
|
||||
uniquely identifies an object on the server. Each object implements an interface
|
||||
and the requests include an opcode that identifies which method in the interface
|
||||
to invoke.
|
||||
|
||||
The protocol is message-based. A message sent by a client to the server is
|
||||
called request. A message from the server to a client is called event. A message
|
||||
has a number of arguments, each of which has a certain type (see [Wire
|
||||
Format](#wire-format) for a list of argument types).
|
||||
|
||||
Additionally, the protocol can specify `enum`s which associate names to specific
|
||||
numeric enumeration values. These are primarily just descriptive in nature: at
|
||||
the wire format level enums are just integers. But they also serve a secondary
|
||||
purpose to enhance type safety or otherwise add context for use in language
|
||||
bindings or other such code. This latter usage is only supported so long as code
|
||||
written before these attributes were introduced still works after; in other
|
||||
words, adding an enum should not break API, otherwise it puts backwards
|
||||
compatibility at risk.
|
||||
|
||||
`enum`s can be defined as just a set of integers, or as bitfields. This is
|
||||
specified via the `bitfield` boolean attribute in the `enum` definition. If this
|
||||
attribute is true, the enum is intended to be accessed primarily using bitwise
|
||||
operations, for example when arbitrarily many choices of the enum can be ORed
|
||||
together; if it is false, or the attribute is omitted, then the enum arguments
|
||||
are a just a sequence of numerical values.
|
||||
|
||||
The `enum` attribute can be used on either `uint` or `int` arguments, however if
|
||||
the `enum` is defined as a `bitfield`, it can only be used on `uint` args.
|
||||
|
||||
The server sends back events to the client, each event is emitted from an
|
||||
object. Events can be error conditions. The event includes the object ID and the
|
||||
event opcode, from which the client can determine the type of event. Events are
|
||||
generated both in response to requests (in which case the request and the event
|
||||
constitutes a round trip) or spontaneously when the server state changes.
|
||||
|
||||
- State is broadcast on connect, events are sent out when state changes. Clients
|
||||
must listen for these changes and cache the state. There is no need (or
|
||||
mechanism) to query server state.
|
||||
|
||||
- The server will broadcast the presence of a number of global objects, which in
|
||||
turn will broadcast their current state.
|
||||
|
||||
## Code Generation
|
||||
|
||||
The interfaces, requests and events are defined in
|
||||
[protocol/wayland.xml](https://gitlab.freedesktop.org/wayland/wayland/-/blob/main/protocol/wayland.xml).
|
||||
This xml is used to generate the function prototypes that can be used by clients
|
||||
and compositors.
|
||||
|
||||
The protocol entry points are generated as inline functions which just wrap the
|
||||
`wl_proxy_*` functions. The inline functions aren't part of the library ABI and
|
||||
language bindings should generate their own stubs for the protocol entry points
|
||||
from the xml.
|
||||
|
||||
## Wire Format
|
||||
|
||||
The protocol is sent over a UNIX domain stream socket, where the endpoint
|
||||
usually is named `wayland-0` (although it can be changed via _WAYLAND_DISPLAY_
|
||||
in the environment). Beginning in Wayland 1.15, implementations can optionally
|
||||
support server socket endpoints located at arbitrary locations in the filesystem
|
||||
by setting _WAYLAND_DISPLAY_ to the absolute path at which the server endpoint
|
||||
listens. The socket may also be provided through file descriptor inheritance, in
|
||||
which case _WAYLAND_SOCKET_ is set.
|
||||
|
||||
Every message is structured as 32-bit words; values are represented in the
|
||||
host's byte-order. The message header has 2 words in it:
|
||||
|
||||
- The first word is the sender's object ID (32-bit).
|
||||
|
||||
- The second has 2 parts of 16-bit. The upper 16-bits are the message size in
|
||||
bytes, starting at the header (i.e. it has a minimum value of 8).The lower is
|
||||
the request/event opcode.
|
||||
|
||||
The payload describes the request/event arguments. Every argument is always
|
||||
aligned to 32-bits. Where padding is required, the value of padding bytes is
|
||||
undefined. There is no prefix that describes the type, but it is inferred
|
||||
implicitly from the xml specification.
|
||||
|
||||
The representation of argument types are as follows:
|
||||
|
||||
int
|
||||
uint
|
||||
: The value is the 32-bit value of the signed/unsigned int.
|
||||
|
||||
fixed
|
||||
: Signed 24.8 decimal numbers. It is a signed decimal type which offers a sign
|
||||
bit, 23 bits of integer precision and 8 bits of decimal precision. This is
|
||||
exposed as an opaque struct with conversion helpers to and from double and
|
||||
int on the C API side.
|
||||
|
||||
string
|
||||
: Starts with an unsigned 32-bit length (including null terminator), followed
|
||||
by the UTF-8 encoded string contents, including terminating null byte, then
|
||||
padding to a 32-bit boundary. A null value is represented with a length of
|
||||
0. Interior null bytes are not permitted.
|
||||
|
||||
object
|
||||
: 32-bit object ID. A null value is represented with an ID of 0.
|
||||
|
||||
new_id
|
||||
: The 32-bit object ID. Generally, the interface used for the new object is
|
||||
inferred from the xml, but in the case where it's not specified, a new_id is
|
||||
preceded by a `string` specifying the interface name, and a `uint`
|
||||
specifying the version.
|
||||
|
||||
array
|
||||
: Starts with 32-bit array size in bytes, followed by the array contents
|
||||
verbatim, and finally padding to a 32-bit boundary.
|
||||
|
||||
fd
|
||||
: The file descriptor is not stored in the message buffer, but in the
|
||||
ancillary data of the UNIX domain socket message (msg_control).
|
||||
|
||||
The protocol does not specify the exact position of the ancillary data in the
|
||||
stream, except that the order of file descriptors is the same as the order of
|
||||
messages and `fd` arguments within messages on the wire.
|
||||
|
||||
In particular, it means that any byte of the stream, even the message header,
|
||||
may carry the ancillary data with file descriptors.
|
||||
|
||||
Clients and compositors should queue incoming data until they have whole
|
||||
messages to process, as file descriptors may arrive earlier or later than the
|
||||
corresponding data bytes.
|
||||
|
||||
## Versioning
|
||||
|
||||
Every interface is versioned and every protocol object implements a particular
|
||||
version of its interface. For global objects, the maximum version supported by
|
||||
the server is advertised with the global and the actual version of the created
|
||||
protocol object is determined by the version argument passed to
|
||||
wl_registry.bind(). For objects that are not globals, their version is inferred
|
||||
from the object that created them.
|
||||
|
||||
In order to keep things sane, this has a few implications for interface
|
||||
versions:
|
||||
|
||||
- The object creation hierarchy must be a tree. Otherwise, inferring object
|
||||
versions from the parent object becomes a much more difficult to properly
|
||||
track.
|
||||
|
||||
- When the version of an interface increases, so does the version of its parent
|
||||
(recursively until you get to a global interface)
|
||||
|
||||
- A global interface's version number acts like a counter for all of its child
|
||||
interfaces. Whenever a child interface gets modified, the global parent's
|
||||
interface version number also increases (see above). The child interface then
|
||||
takes on the same version number as the new version of its parent global
|
||||
interface.
|
||||
|
||||
To illustrate the above, consider the wl_compositor interface. It has two
|
||||
children, wl_surface and wl_region. As of wayland version 1.2, wl_surface and
|
||||
wl_compositor are both at version 3. If something is added to the wl_region
|
||||
interface, both wl_region and wl_compositor will get bumpped to version 4. If,
|
||||
afterwards, wl_surface is changed, both wl_compositor and wl_surface will be at
|
||||
version 5. In this way the global interface version is used as a sort of
|
||||
"counter" for all of its child interfaces. This makes it very simple to know the
|
||||
version of the child given the version of its parent. The child is at the
|
||||
highest possible interface version that is less than or equal to its parent's
|
||||
version.
|
||||
|
||||
It is worth noting a particular exception to the above versioning scheme. The
|
||||
wl_display (and, by extension, wl_registry) interface cannot change because it
|
||||
is the core protocol object and its version is never advertised nor is there a
|
||||
mechanism to request a different version.
|
||||
|
||||
## Connect Time
|
||||
|
||||
There is no fixed connection setup information, the server emits multiple events
|
||||
at connect time, to indicate the presence and properties of global objects:
|
||||
outputs, compositor, input devices.
|
||||
|
||||
## Security and Authentication
|
||||
|
||||
- mostly about access to underlying buffers, need new drm auth mechanism (the
|
||||
grant-to ioctl idea), need to check the cmd stream?
|
||||
|
||||
- getting the server socket depends on the compositor type, could be a system
|
||||
wide name, through fd passing on the session dbus. or the client is forked by
|
||||
the compositor and the fd is already opened.
|
||||
|
||||
## Creating Objects
|
||||
|
||||
Each object has a unique ID. The IDs are allocated by the entity creating the
|
||||
object (either client or server). IDs allocated by the client are in the range
|
||||
[1, 0xfeffffff] while IDs allocated by the server are in the range [0xff000000,
|
||||
0xffffffff]. The 0 ID is reserved to represent a null or non-existent object.
|
||||
For efficiency purposes, the IDs are densely packed in the sense that the ID N
|
||||
will not be used until N-1 has been used. This ordering is not merely a
|
||||
guideline, but a strict requirement, and there are implementations of the
|
||||
protocol that rigorously enforce this rule, including the ubiquitous libwayland.
|
||||
|
||||
## Compositor
|
||||
|
||||
The compositor is a global object, advertised at connect time.
|
||||
|
||||
See [wl_compositor](https://wayland.app/protocols/wayland#wl_compositor) for the
|
||||
protocol description.
|
||||
|
||||
## Surfaces
|
||||
|
||||
A surface manages a rectangular grid of pixels that clients create for
|
||||
displaying their content to the screen. Clients don't know the global position
|
||||
of their surfaces, and cannot access other clients' surfaces.
|
||||
|
||||
Once the client has finished writing pixels, it 'commits' the buffer; this
|
||||
permits the compositor to access the buffer and read the pixels. When the
|
||||
compositor is finished, it releases the buffer back to the client.
|
||||
|
||||
See [wl_surface](https://wayland.app/protocols/wayland#wl_surface) for the
|
||||
protocol description.
|
||||
|
||||
## Input
|
||||
|
||||
A seat represents a group of input devices including mice, keyboards and
|
||||
touchscreens. It has a keyboard and pointer focus. Seats are global objects.
|
||||
Pointer events are delivered in surface-local coordinates.
|
||||
|
||||
The compositor maintains an implicit grab when a button is pressed, to ensure
|
||||
that the corresponding button release event gets delivered to the same surface.
|
||||
But there is no way for clients to take an explicit grab. Instead, surfaces can
|
||||
be mapped as 'popup', which combines transient window semantics with a pointer
|
||||
grab.
|
||||
|
||||
To avoid race conditions, input events that are likely to trigger further
|
||||
requests (such as button presses, key events, pointer motions) carry serial
|
||||
numbers, and requests such as wl_surface.set_popup require that the serial
|
||||
number of the triggering event is specified. The server maintains a
|
||||
monotonically increasing counter for these serial numbers.
|
||||
|
||||
Input events also carry timestamps with millisecond granularity. Their base is
|
||||
undefined, so they can't be compared against system time (as obtained with
|
||||
clock_gettime or gettimeofday). They can be compared with each other though, and
|
||||
for instance be used to identify sequences of button presses as double or triple
|
||||
clicks.
|
||||
|
||||
See [wl_seat](https://wayland.app/protocols/wayland#wl_seat) for the protocol
|
||||
description.
|
||||
|
||||
Talk about:
|
||||
|
||||
- keyboard map, change events
|
||||
|
||||
- xkb on Wayland
|
||||
|
||||
- multi pointer Wayland
|
||||
|
||||
A surface can change the pointer image when the surface is the pointer focus of
|
||||
the input device. Wayland doesn't automatically change the pointer image when a
|
||||
pointer enters a surface, but expects the application to set the cursor it wants
|
||||
in response to the pointer focus and motion events. The rationale is that a
|
||||
client has to manage changing pointer images for UI elements within the surface
|
||||
in response to motion events anyway, so we'll make that the only mechanism for
|
||||
setting or changing the pointer image. If the server receives a request to set
|
||||
the pointer image after the surface loses pointer focus, the request is ignored.
|
||||
To the client this will look like it successfully set the pointer image.
|
||||
|
||||
Setting the pointer image to NULL causes the cursor to be hidden.
|
||||
|
||||
The compositor will revert the pointer image back to a default image when no
|
||||
surface has the pointer focus for that device.
|
||||
|
||||
What if the pointer moves from one window which has set a special pointer image
|
||||
to a surface that doesn't set an image in response to the motion event? The new
|
||||
surface will be stuck with the special pointer image. We can't just revert the
|
||||
pointer image on leaving a surface, since if we immediately enter a surface that
|
||||
sets a different image, the image will flicker. If a client does not set a
|
||||
pointer image when the pointer enters a surface, the pointer stays with the
|
||||
image set by the last surface that changed it, possibly even hidden. Such a
|
||||
client is likely just broken.
|
||||
|
||||
## Output
|
||||
|
||||
An output is a global object, advertised at connect time or as it comes and
|
||||
goes.
|
||||
|
||||
See [wl_output](https://wayland.app/protocols/wayland#wl_output) for the
|
||||
protocol description.
|
||||
|
||||
- laid out in a big (compositor) coordinate system
|
||||
|
||||
- basically xrandr over Wayland
|
||||
|
||||
- geometry needs position in compositor coordinate system
|
||||
|
||||
- events to advertise available modes, requests to move and change modes
|
||||
|
||||
## Data sharing between clients
|
||||
|
||||
The Wayland protocol provides clients a mechanism for sharing data that allows
|
||||
the implementation of copy-paste and drag-and-drop. The client providing the
|
||||
data creates a `wl_data_source` object and the clients obtaining the data will
|
||||
see it as `wl_data_offer` object. This interface allows the clients to agree on
|
||||
a mutually supported mime type and transfer the data via a file descriptor that
|
||||
is passed through the protocol.
|
||||
|
||||
The next section explains the negotiation between data source and data offer
|
||||
objects. [Data devices](#data-devices) explains how these objects are created
|
||||
and passed to different clients using the `wl_data_device` interface that
|
||||
implements copy-paste and drag-and-drop support.
|
||||
|
||||
See [wl_data_offer](https://wayland.app/protocols/wayland#wl_data_offer),
|
||||
[wl_data_source](https://wayland.app/protocols/wayland#wl_data_source),
|
||||
[wl_data_device](https://wayland.app/protocols/wayland#wl_data_device) and
|
||||
[wl_data_device_manager](https://wayland.app/protocols/wayland#wl_data_device_manager)
|
||||
for protocol descriptions.
|
||||
|
||||
MIME is defined in RFC's 2045-2049. A [registry of MIME
|
||||
types](https://www.iana.org/assignments/media-types/media-types.xhtml) is
|
||||
maintained by the Internet Assigned Numbers Authority (IANA).
|
||||
|
||||
### Data negotiation
|
||||
|
||||
A client providing data to other clients will create a `wl_data_source` object
|
||||
and advertise the mime types for the formats it supports for that data through
|
||||
the `wl_data_source.offer` request. On the receiving end, the data offer object
|
||||
will generate one `wl_data_offer.offer` event for each supported mime type.
|
||||
|
||||
The actual data transfer happens when the receiving client sends a
|
||||
`wl_data_offer.receive` request. This request takes a mime type and a file
|
||||
descriptor as arguments. This request will generate a `wl_data_source.send`
|
||||
event on the sending client with the same arguments, and the latter client is
|
||||
expected to write its data to the given file descriptor using the chosen mime
|
||||
type.
|
||||
|
||||
### Data devices
|
||||
|
||||
Data devices glue data sources and offers together. A data device is associated
|
||||
with a `wl_seat` and is obtained by the clients using the
|
||||
`wl_data_device_manager` factory object, which is also responsible for creating
|
||||
data sources.
|
||||
|
||||
Clients are informed of new data offers through the `wl_data_device.data_offer`
|
||||
event. After this event is generated the data offer will advertise the available
|
||||
mime types. New data offers are introduced prior to their use for copy-paste or
|
||||
drag-and-drop.
|
||||
|
||||
#### Selection
|
||||
|
||||
Each data device has a selection data source. Clients create a data source
|
||||
object using the device manager and may set it as the current selection for a
|
||||
given data device. Whenever the current selection changes, the client with
|
||||
keyboard focus receives a `wl_data_device.selection` event. This event is also
|
||||
generated on a client immediately before it receives keyboard focus.
|
||||
|
||||
The data offer is introduced with `wl_data_device.data_offer` event before the
|
||||
selection event.
|
||||
|
||||
#### Drag and Drop
|
||||
|
||||
A drag-and-drop operation is started using the `wl_data_device.start_drag`
|
||||
request. This requests causes a pointer grab that will generate enter, motion
|
||||
and leave events on the data device. A data source is supplied as argument to
|
||||
start_drag, and data offers associated with it are supplied to clients surfaces
|
||||
under the pointer in the `wl_data_device.enter` event. The data offer is
|
||||
introduced to the client prior to the enter event with the
|
||||
`wl_data_device.data_offer` event.
|
||||
|
||||
Clients are expected to provide feedback to the data sending client by calling
|
||||
the `wl_data_offer.accept` request with a mime type it accepts. If none of the
|
||||
advertised mime types is supported by the receiving client, it should supply
|
||||
NULL to the accept request. The accept request causes the sending client to
|
||||
receive a `wl_data_source.target` event with the chosen mime type.
|
||||
|
||||
When the drag ends, the receiving client receives a `wl_data_device.drop` event
|
||||
at which it is expected to transfer the data using the `wl_data_offer.receive`
|
||||
request.
|
||||
|
|
@ -1,12 +0,0 @@
|
|||
# Summary
|
||||
|
||||
[Foreword](Foreword.md)
|
||||
|
||||
- [Introduction](./Introduction.md)
|
||||
- [Types of Compositors](./Compositors.md)
|
||||
- [Wayland Architecture](./Architecture.md)
|
||||
- [Wayland Protocol and Model of Operation](./Protocol.md)
|
||||
- [Message Definition Language](./Message_XML.md)
|
||||
- [X11 Application Support](./Xwayland.md)
|
||||
- [Content Updates](./Content_Updates.md)
|
||||
- [Color management](./Color.md)
|
||||
|
|
@ -1,120 +0,0 @@
|
|||
# X11 Application Support
|
||||
|
||||
## Introduction
|
||||
|
||||
Being able to run existing X11 applications is crucial for the adoption of
|
||||
Wayland, especially on desktops, as there will always be X11 applications that
|
||||
have not been or cannot be converted into Wayland applications, and throwing
|
||||
them all away would be prohibitive. Therefore a Wayland compositor often needs
|
||||
to support running X11 applications.
|
||||
|
||||
X11 and Wayland are different enough that there is no "simple" way to translate
|
||||
between them. Most of X11 is uninteresting to a Wayland compositor. That,
|
||||
combined with the gigantic implementation effort needed to support X11, makes it
|
||||
intractable to just write X11 support directly in a Wayland compositor. The
|
||||
implementation would be nothing short of a real X11 server.
|
||||
|
||||
Therefore, Wayland compositors should use Xwayland, the X11 server that lives in
|
||||
the Xorg server source code repository and shares most of the implementation
|
||||
with the Xorg server. Xwayland is a complete X11 server, just like Xorg is, but
|
||||
instead of driving the displays and opening input devices, it acts as a Wayland
|
||||
client. The rest of this chapter talks about how Xwayland works.
|
||||
|
||||
For integration and architecture reasons, while Xwayland is a Wayland client of
|
||||
the Wayland compositor, the Wayland compositor is an X11 client of Xwayland.
|
||||
This circular dependency requires special care from the Wayland compositor.
|
||||
|
||||
## Two Modes for Foreign Windows
|
||||
|
||||
In general, windows from a foreign window system can be presented in one of two
|
||||
ways: rootless and rootful (not rootless).
|
||||
|
||||
In rootful mode, the foreign window system as a whole is represented as a window
|
||||
(or more) of its own. You have a native window, inside which all the foreign
|
||||
windows are. The advantage of this approach in Xwayland's case is that you can
|
||||
run your favourite X11 window manager to manage your X11 applications. The
|
||||
disadvantage is that the foreign windows do not integrate with the native
|
||||
desktop. Therefore this mode is not usually used.
|
||||
|
||||
In rootless mode, each foreign window is a first-class resident among the native
|
||||
windows. Foreign windows are not confined inside a native window but act as if
|
||||
they were native windows. The advantage is that one can freely stack and mix
|
||||
native and foreign windows, which is not possible in rootful mode. The
|
||||
disadvantage is that this mode is harder to implement and fundamental
|
||||
differences in window systems may prevent some things from working. With
|
||||
rootless Xwayland, the Wayland compositor must take the role as the X11 window
|
||||
manager, and one cannot use any other X11 window manager in its place.
|
||||
|
||||
This chapter concentrates on the rootless mode, and ignores the rootful mode.
|
||||
|
||||
## Architecture
|
||||
|
||||
A Wayland compositor usually takes care of launching Xwayland. Xwayland works in
|
||||
cooperation with a Wayland compositor as follows:
|
||||
|
||||
**Xwayland architecture diagram**
|
||||
|
||||
|
||||
|
||||
An X11 application connects to Xwayland just like it would connect to any X
|
||||
server. Xwayland processes all the X11 requests. On the other end, Xwayland is a
|
||||
Wayland client that connects to the Wayland compositor.
|
||||
|
||||
The X11 window manager (XWM) is an integral part of the Wayland compositor. XWM
|
||||
uses the usual X11 window management protocol to manage all X11 windows in
|
||||
Xwayland. Most importantly, XWM acts as a bridge between Xwayland window state
|
||||
and the Wayland compositor's window manager (WWM). This way WWM can manage all
|
||||
windows, both native Wayland and X11 (Xwayland) windows. This is very important
|
||||
for a coherent user experience.
|
||||
|
||||
Since Xwayland uses Wayland for input and output, it does not have any use for
|
||||
the device drivers that Xorg uses. None of the xf86-video-* or xf86-input-*
|
||||
modules are used. There also is no configuration file for the Xwayland server.
|
||||
For optional hardware accelerated rendering, Xwayland uses GLAMOR.
|
||||
|
||||
A Wayland compositor usually spawns only one Xwayland instance. This is because
|
||||
many X11 applications assume they can communicate with other X11 applications
|
||||
through the X server, and this requires a shared X server instance. This also
|
||||
means that Xwayland does not protect nor isolate X11 clients from each other,
|
||||
unless the Wayland compositor specifically chooses to break the X11 client
|
||||
intercommunications by spawning application specific Xwayland instances. X11
|
||||
clients are naturally isolated from Wayland clients.
|
||||
|
||||
Xwayland compatibility compared to a native X server will probably never reach
|
||||
100%. Desktop environment (DE) components, specifically X11 window managers, are
|
||||
practically never supported. An X11 window manager would not know about native
|
||||
Wayland windows, so it could manage only X11 windows. On the other hand, there
|
||||
must be an XWM that reserves the exclusive window manager role so that the
|
||||
Wayland compositor could show the X11 windows appropriately. For other DE
|
||||
components, like pagers and panels, adding the necessary interfaces to support
|
||||
them in WWM through XWM is often considered not worthwhile.
|
||||
|
||||
## X Window Manager (XWM)
|
||||
|
||||
From the X11 point of view, the X window manager (XWM) living inside a Wayland
|
||||
compositor is just like any other window manager. The difference is mostly in
|
||||
which process it resides in, and the few extra conventions in the X11 protocol
|
||||
to support Wayland window management (WWM) specifically.
|
||||
|
||||
There are two separate asynchronous communication channels between Xwayland and
|
||||
a Wayland compositor: one uses the Wayland protocol, and the other one, solely
|
||||
for XWM, uses X11 protocol. This setting demands great care from the XWM
|
||||
implementation to avoid (random) deadlocks with Xwayland. It is often nearly
|
||||
impossible to prove that synchronous or blocking X11 calls from XWM cannot cause
|
||||
a deadlock, and therefore it is strongly recommended to make all X11
|
||||
communications asynchronous. All Wayland communications are already asynchronous
|
||||
by design.
|
||||
|
||||
### Window identification
|
||||
|
||||
In Xwayland, an X11 window may have a corresponding wl_surface object in
|
||||
Wayland. The wl_surface object is used for input and output: it is referenced by
|
||||
input events and used to provide the X11 window content to the Wayland
|
||||
compositor. The X11 window and the wl_surface live in different protocol
|
||||
streams, and they need to be matched for XWM to do its job.
|
||||
|
||||
When Xwayland creates a wl_surface on Wayland, it will also send an X11
|
||||
ClientMessage of type atom "WL_SURFACE_ID" to the X11 window carrying the
|
||||
wl_surface Wayland object ID as the first 32-bit data element. This is how XWM
|
||||
can associate a wl_surface with an X11 window. Note that the request to create a
|
||||
wl_surface and the ID message may arrive in any order in the Wayland compositor.
|
||||
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|
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|
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3
doc/doxygen/.gitignore
vendored
3
doc/doxygen/.gitignore
vendored
|
|
@ -1,3 +1,2 @@
|
|||
doxygen_sqlite3.db
|
||||
html/
|
||||
wayland.doxygen
|
||||
xml/
|
||||
|
|
|
|||
53
doc/doxygen/Makefile.am
Normal file
53
doc/doxygen/Makefile.am
Normal file
|
|
@ -0,0 +1,53 @@
|
|||
|
||||
noinst_DATA = xml/client/index.xml xml/server/index.xml
|
||||
dist_noinst_DATA = wayland.doxygen.in
|
||||
|
||||
scanned_src_files_shared = \
|
||||
$(top_srcdir)/src/wayland-util.c \
|
||||
$(top_srcdir)/src/wayland-util.h
|
||||
|
||||
scanned_src_files_client = \
|
||||
$(scanned_src_files_shared) \
|
||||
$(top_srcdir)/src/wayland-client.c \
|
||||
$(top_srcdir)/src/wayland-client.h
|
||||
|
||||
scanned_src_files_server = \
|
||||
$(scanned_src_files_shared) \
|
||||
$(top_srcdir)/src/wayland-server.c \
|
||||
$(top_srcdir)/src/wayland-server.h \
|
||||
$(top_srcdir)/src/wayland-shm.c
|
||||
|
||||
# find all man/man3/wl_foo.3 pages
|
||||
# for this to work, we need to create them before the man target (hence
|
||||
# all-local below)
|
||||
dist_man3_MANS = $(shell test -d man && find man/man3 -name "wl_*.3" -printf "man/man3/%P\n")
|
||||
|
||||
xml/client/index.xml: $(scanned_src_files_client) wayland.doxygen
|
||||
$(AM_V_GEN)$(MKDIR_P) xml/client && \
|
||||
(cat wayland.doxygen; \
|
||||
echo "GENERATE_XML=YES"; \
|
||||
echo "XML_OUTPUT=xml/client"; \
|
||||
echo "INPUT= $(scanned_src_files_client)"; \
|
||||
) | doxygen -
|
||||
xml/server/index.xml: $(scanned_src_files_server) wayland.doxygen
|
||||
$(AM_V_GEN)$(MKDIR_P) xml/server && \
|
||||
(cat wayland.doxygen; \
|
||||
echo "GENERATE_XML=YES"; \
|
||||
echo "XML_OUTPUT=xml/server"; \
|
||||
echo "INPUT= $(scanned_src_files_server)"; \
|
||||
) | doxygen -
|
||||
|
||||
man/man3/wl_display.3: $(scanned_src_files_client) $(scanned_src_files_server)
|
||||
$(AM_V_GEN)(cat wayland.doxygen; \
|
||||
echo "GENERATE_MAN=YES"; \
|
||||
echo "MAN_OUTPUT=man"; \
|
||||
echo "JAVADOC_AUTOBRIEF=NO"; \
|
||||
echo "INPUT= $^"; \
|
||||
) | doxygen -
|
||||
|
||||
# there is no man-local
|
||||
all-local: man/man3/wl_display.3
|
||||
|
||||
clean-local:
|
||||
rm -rf xml/
|
||||
rm -rf man/
|
||||
|
|
@ -1,105 +0,0 @@
|
|||
#!/usr/bin/env python3
|
||||
|
||||
import argparse
|
||||
import datetime
|
||||
import errno
|
||||
import os
|
||||
import subprocess
|
||||
import sys
|
||||
|
||||
# Custom configuration for each documentation format
|
||||
doxygen_templates = {
|
||||
'xml': [
|
||||
'GENERATE_XML=YES\n',
|
||||
'XML_OUTPUT={format}/{section}\n',
|
||||
'INPUT= {files}\n',
|
||||
],
|
||||
'html': [
|
||||
'GENERATE_HTML=YES\n',
|
||||
'HTML_OUTPUT={format}/{section}\n',
|
||||
'PROJECT_NAME=\"Wayland {section} API\"\n',
|
||||
'INPUT= {files}\n',
|
||||
],
|
||||
'man': [
|
||||
'GENERATE_MAN=YES\n',
|
||||
'MAN_OUTPUT={format}\n',
|
||||
'MAN_SUBDIR=.\n',
|
||||
'JAVADOC_AUTOBRIEF=NO\n',
|
||||
'INPUT= {files}\n',
|
||||
],
|
||||
}
|
||||
|
||||
def load_doxygen_file(doxyfile):
|
||||
with open(doxyfile, 'r') as f:
|
||||
res = f.readlines()
|
||||
return res
|
||||
|
||||
def get_template(outformat):
|
||||
for (k,v) in doxygen_templates.items():
|
||||
if outformat.startswith(k):
|
||||
return v
|
||||
|
||||
def gen_doxygen_file(data, outformat, section, files):
|
||||
for l in get_template(outformat):
|
||||
data.append(l.format(format=outformat, section=section, files=' '.join(files)))
|
||||
return data
|
||||
|
||||
parser = argparse.ArgumentParser(description='Generate docs with Doxygen')
|
||||
parser.add_argument('doxygen_file',
|
||||
help='The doxygen file to use')
|
||||
parser.add_argument('files',
|
||||
help='The list of files to parse',
|
||||
metavar='FILES',
|
||||
nargs='+')
|
||||
parser.add_argument('--builddir',
|
||||
help='The build directory',
|
||||
metavar='DIR',
|
||||
default='.')
|
||||
parser.add_argument('--section',
|
||||
help='The section to build',
|
||||
metavar='NAME',
|
||||
default='Client')
|
||||
parser.add_argument('--output-format',
|
||||
help='The output format: xml, html, man',
|
||||
metavar='FORMAT',
|
||||
default='xml')
|
||||
parser.add_argument('--stamp',
|
||||
help='Stamp file to output',
|
||||
metavar='STAMP_FILE',
|
||||
nargs='?',
|
||||
type=argparse.FileType('w'))
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
# Merge the doxyfile with our custom templates
|
||||
conf = load_doxygen_file(args.doxygen_file)
|
||||
conf = gen_doxygen_file(conf, args.output_format, args.section, args.files)
|
||||
|
||||
# Doxygen is not clever enough to create the directories it
|
||||
# needs beforehand
|
||||
try:
|
||||
os.makedirs(os.path.join(args.builddir, args.output_format))
|
||||
except OSError as e:
|
||||
if e.errno != errno.EEXIST:
|
||||
raise e
|
||||
|
||||
# Run Doxygen with the generated doxyfile
|
||||
cmd = subprocess.Popen(['doxygen', '-'], stdin=subprocess.PIPE)
|
||||
cmd.stdin.write(''.join(conf).encode('utf-8'))
|
||||
cmd.stdin.close()
|
||||
if cmd.wait() != 0:
|
||||
sys.exit(1)
|
||||
|
||||
# This is a bit of a hack; Doxygen will generate way more files than we
|
||||
# want to install, but there's no way to know how many at configuration
|
||||
# time. Since we want to install only the wl_* man pages anyway, we can
|
||||
# delete the other files and let Meson install the whole man3 subdirectory
|
||||
if args.output_format.startswith('man'):
|
||||
manpath = os.path.join(args.builddir, args.output_format)
|
||||
for filename in os.listdir(manpath):
|
||||
full_path = os.path.join(manpath, filename)
|
||||
if not filename.startswith('wl_'):
|
||||
os.remove(full_path)
|
||||
|
||||
if args.stamp:
|
||||
args.stamp.write(str(datetime.datetime.now()))
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
/**
|
||||
* @mainpage
|
||||
* Wayland protocol API documentation.
|
||||
*
|
||||
* This documentation is available for the Server- and the Client-side APIs.
|
||||
*
|
||||
* - <a href="../Server/index.html">Server-side API</a>
|
||||
* - <a href="../Client/index.html">Client-side API</a>
|
||||
* - <a href="../Cursor/index.html">Cursor helper library API</a>
|
||||
*
|
||||
* Further documentation about the architecture and principles of Wayland is
|
||||
* available on the
|
||||
* <a href="https://wayland.freedesktop.org">website</a>.
|
||||
*
|
||||
* @section ifaces Interfaces
|
||||
* For the list of available interfaces, please see the
|
||||
* <a href="modules.html">modules</a> list.
|
||||
*
|
||||
* @section protocols Protocols
|
||||
* For the list of protocols, please see the
|
||||
* <a href="pages.html">Related Pages</a>.
|
||||
*
|
||||
*/
|
||||
|
|
@ -1,105 +0,0 @@
|
|||
# Here be dragons
|
||||
|
||||
doxygen_conf = configuration_data()
|
||||
doxygen_conf.set('VERSION', meson.project_version())
|
||||
doxygen_conf.set('top_builddir', meson.project_build_root())
|
||||
wayland_doxygen = configure_file(
|
||||
input: 'wayland.doxygen.in',
|
||||
output: 'wayland.doxygen',
|
||||
configuration: doxygen_conf,
|
||||
)
|
||||
|
||||
shared_files = files([
|
||||
'../../src/wayland-util.h',
|
||||
])
|
||||
|
||||
client_files = files([
|
||||
'../../src/wayland-client.c',
|
||||
'../../src/wayland-client.h',
|
||||
'../../src/wayland-client-core.h',
|
||||
])
|
||||
|
||||
server_files = files([
|
||||
'../../src/event-loop.c',
|
||||
'../../src/wayland-server.c',
|
||||
'../../src/wayland-server.h',
|
||||
'../../src/wayland-server-core.h',
|
||||
'../../src/wayland-shm.c',
|
||||
])
|
||||
|
||||
cursor_files = files([
|
||||
'../../cursor/wayland-cursor.c',
|
||||
'../../cursor/wayland-cursor.h',
|
||||
])
|
||||
|
||||
extra_client_files = [
|
||||
'mainpage.dox',
|
||||
wayland_client_protocol_h,
|
||||
]
|
||||
|
||||
extra_server_files = [
|
||||
'mainpage.dox',
|
||||
wayland_server_protocol_h,
|
||||
]
|
||||
|
||||
extra_cursor_files = [
|
||||
'mainpage.dox',
|
||||
]
|
||||
|
||||
gen_doxygen = find_program('gen-doxygen.py')
|
||||
|
||||
subdir('xml')
|
||||
|
||||
formats = {
|
||||
'html': {
|
||||
'Client': shared_files + client_files + extra_client_files,
|
||||
'Server': shared_files + server_files + extra_server_files,
|
||||
'Cursor': shared_files + cursor_files + extra_cursor_files,
|
||||
},
|
||||
}
|
||||
|
||||
foreach f_name, sections: formats
|
||||
foreach s_name, s_files: sections
|
||||
t_name = '@0@-@1@-doc'.format(f_name, s_name)
|
||||
|
||||
# We do not really need an output file, but Meson
|
||||
# will complain if one is not set, so we use a
|
||||
# dummy 'stamp' file
|
||||
stamp = join_paths(meson.current_build_dir(), '@0@.stamp'.format(t_name))
|
||||
custom_target(
|
||||
t_name,
|
||||
command: [
|
||||
gen_doxygen,
|
||||
# XXX pass doxygen path as argument
|
||||
'--builddir=@OUTDIR@',
|
||||
'--section=@0@'.format(s_name),
|
||||
'--output-format=@0@'.format(f_name),
|
||||
'--stamp=@0@'.format(stamp),
|
||||
wayland_doxygen,
|
||||
'@INPUT@',
|
||||
],
|
||||
input: s_files,
|
||||
output: '@0@.stamp'.format(t_name),
|
||||
build_by_default: true,
|
||||
)
|
||||
endforeach
|
||||
endforeach
|
||||
|
||||
man_files = shared_files + server_files + client_files + cursor_files
|
||||
stamp = join_paths(meson.current_build_dir(), 'man3.stamp')
|
||||
custom_target(
|
||||
'man-pages-3',
|
||||
command: [
|
||||
gen_doxygen,
|
||||
'--builddir=@OUTDIR@',
|
||||
'--output-format=man3',
|
||||
'--stamp=@0@'.format(stamp),
|
||||
wayland_doxygen,
|
||||
'@INPUT@',
|
||||
],
|
||||
input: man_files,
|
||||
output: 'man3',
|
||||
build_by_default: true,
|
||||
install: true,
|
||||
install_dir: join_paths(get_option('prefix'), get_option('mandir')),
|
||||
)
|
||||
File diff suppressed because it is too large
Load diff
|
|
@ -1,17 +0,0 @@
|
|||
tgt = custom_target(
|
||||
'xml-Client-doc',
|
||||
command: [
|
||||
gen_doxygen,
|
||||
# XXX pass doxygen path as argument
|
||||
'--builddir=@OUTDIR@',
|
||||
'--section=Client',
|
||||
'--output-format=xml',
|
||||
wayland_doxygen,
|
||||
'@INPUT@',
|
||||
],
|
||||
input: [ shared_files, client_files ],
|
||||
output: [ 'combine.xslt', 'index.xml' ],
|
||||
)
|
||||
|
||||
doxygen_Client_combine_xslt = tgt[0]
|
||||
doxygen_Client_index_xml = tgt[1]
|
||||
|
|
@ -1,17 +0,0 @@
|
|||
tgt = custom_target(
|
||||
'xml-Server-doc',
|
||||
command: [
|
||||
gen_doxygen,
|
||||
# XXX pass doxygen path as argument
|
||||
'--builddir=@OUTDIR@',
|
||||
'--section=Server',
|
||||
'--output-format=xml',
|
||||
wayland_doxygen,
|
||||
'@INPUT@',
|
||||
],
|
||||
input: [ shared_files, server_files ],
|
||||
output: [ 'combine.xslt', 'index.xml' ],
|
||||
)
|
||||
|
||||
doxygen_Server_combine_xslt = tgt[0]
|
||||
doxygen_Server_index_xml = tgt[1]
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
subdir('Client')
|
||||
subdir('Server')
|
||||
51
doc/man/Makefile.am
Normal file
51
doc/man/Makefile.am
Normal file
|
|
@ -0,0 +1,51 @@
|
|||
#
|
||||
# This generates man-pages out of the Docbook XML files. Simply add your files
|
||||
# to the $MANPAGES array. If aliases are created, please add them to the
|
||||
# MANPAGES_ALIASES array so they get installed correctly.
|
||||
#
|
||||
|
||||
MANPAGES = \
|
||||
wl_display_connect.3
|
||||
MANPAGES_ALIASES = \
|
||||
wl_display_connect_to_fd.3
|
||||
|
||||
XML_FILES = \
|
||||
${patsubst %.1,%.xml,${patsubst %.3,%.xml,${patsubst %.5,%.xml,${patsubst %.7,%.xml,$(MANPAGES)}}}}
|
||||
CLEANFILES =
|
||||
EXTRA_DIST = $(XML_FILES)
|
||||
|
||||
if HAVE_XSLTPROC
|
||||
if HAVE_MANPAGES_STYLESHEET
|
||||
|
||||
CLEANFILES += $(MANPAGES) $(MANPAGES_ALIASES)
|
||||
EXTRA_DIST += $(MANPAGES) $(MANPAGES_ALIASES)
|
||||
dist_man_MANS = $(MANPAGES) $(MANPAGES_ALIASES)
|
||||
|
||||
XSLTPROC_FLAGS = \
|
||||
--stringparam man.authors.section.enabled 0 \
|
||||
--stringparam man.copyright.section.enabled 0 \
|
||||
--stringparam funcsynopsis.style ansi \
|
||||
--stringparam man.output.quietly 1 \
|
||||
--nonet
|
||||
|
||||
XSLTPROC_PROCESS_MAN = \
|
||||
$(AM_V_GEN)$(MKDIR_P) $(dir $@) && \
|
||||
$(XSLTPROC) -o $@ $(XSLTPROC_FLAGS) $(MANPAGES_STYLESHEET) $< && \
|
||||
$(SED) -i -e 's/^\.so \(.*\)\.\(.\)$$/\.so man\2\/\1\.\2/' $(MANPAGES_ALIASES)
|
||||
|
||||
%.1: %.xml
|
||||
$(XSLTPROC_PROCESS_MAN)
|
||||
|
||||
%.3: %.xml
|
||||
$(XSLTPROC_PROCESS_MAN)
|
||||
|
||||
%.5: %.xml
|
||||
$(XSLTPROC_PROCESS_MAN)
|
||||
|
||||
%.7: %.xml
|
||||
$(XSLTPROC_PROCESS_MAN)
|
||||
|
||||
wl_display_connect_to_fd.3: wl_display_connect.3
|
||||
|
||||
endif # HAVE_MANPAGES_STYLESHEET
|
||||
endif # HAVE_XSLTPROC
|
||||
88
doc/man/wl_display_connect.xml
Normal file
88
doc/man/wl_display_connect.xml
Normal file
|
|
@ -0,0 +1,88 @@
|
|||
<?xml version='1.0'?> <!--*-nxml-*-->
|
||||
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
||||
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
||||
|
||||
<!--
|
||||
Written 2012 by David Herrmann <dh.herrmann@googlemail.com>
|
||||
Dedicated to the Public Domain
|
||||
-->
|
||||
|
||||
<refentry id="wl_display_connect">
|
||||
<refentryinfo>
|
||||
<title>wl_display_connect</title>
|
||||
<productname>wayland-client</productname>
|
||||
<date>September 2012</date>
|
||||
<authorgroup>
|
||||
<author>
|
||||
<contrib>Developer</contrib>
|
||||
<firstname>David</firstname>
|
||||
<surname>Herrmann</surname>
|
||||
<email>dh.herrmann@googlemail.com</email>
|
||||
</author>
|
||||
</authorgroup>
|
||||
</refentryinfo>
|
||||
|
||||
<refmeta>
|
||||
<refentrytitle>wl_display_connect</refentrytitle>
|
||||
<manvolnum>3</manvolnum>
|
||||
</refmeta>
|
||||
|
||||
<refnamediv>
|
||||
<refname>wl_display_connect</refname>
|
||||
<refname>wl_display_connect_to_fd</refname>
|
||||
<refpurpose>Connect to a Wayland socket</refpurpose>
|
||||
</refnamediv>
|
||||
|
||||
<refsynopsisdiv>
|
||||
<funcsynopsis>
|
||||
|
||||
<funcsynopsisinfo>#include <wayland-client.h></funcsynopsisinfo>
|
||||
|
||||
<funcprototype>
|
||||
<funcdef>struct wl_display *<function>wl_display_connect</function></funcdef>
|
||||
<paramdef>const char *<parameter>name</parameter></paramdef>
|
||||
</funcprototype>
|
||||
|
||||
<funcprototype>
|
||||
<funcdef>struct wl_display *<function>wl_display_connect_to_fd</function></funcdef>
|
||||
<paramdef>int <parameter>fd</parameter></paramdef>
|
||||
</funcprototype>
|
||||
|
||||
</funcsynopsis>
|
||||
</refsynopsisdiv>
|
||||
|
||||
<refsect1>
|
||||
<title>Description</title>
|
||||
<para><function>wl_display_connect</function> connects to a Wayland socket
|
||||
that was previously opened by a Wayland server. The server socket must
|
||||
be placed in <envar>XDG_RUNTIME_DIR</envar> for this function to
|
||||
find it. The <varname>name</varname> argument specifies the name of
|
||||
the socket or <constant>NULL</constant> to use the default (which is
|
||||
<constant>"wayland-0"</constant>). The environment variable
|
||||
<envar>WAYLAND_DISPLAY</envar> replaces the default value. If
|
||||
<envar>WAYLAND_SOCKET</envar> is set, this function behaves like
|
||||
<function>wl_display_connect_to_fd</function> with the file-descriptor
|
||||
number taken from the environment variable.</para>
|
||||
|
||||
<para><function>wl_display_connect_to_fd</function> connects to a Wayland
|
||||
socket with an explicit file-descriptor. The file-descriptor is passed
|
||||
as argument <varname>fd</varname>.</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
<title>Return Value</title>
|
||||
<para><function>wl_display_connect</function> and
|
||||
<function>wl_display_connect_to_fd</function> return a new display
|
||||
context object or NULL on failure. <varname>errno</varname> is set
|
||||
correspondingly.</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
<title>See Also</title>
|
||||
<para>
|
||||
<citerefentry><refentrytitle>wayland-client</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>wl_display_disconnect</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
||||
<citerefentry><refentrytitle>wl_display_iterate</refentrytitle><manvolnum>3</manvolnum></citerefentry>
|
||||
</para>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
|
@ -1,43 +0,0 @@
|
|||
if not get_option('libraries')
|
||||
error('-Ddocumentation=true requires -Dlibraries=true')
|
||||
endif
|
||||
|
||||
dot = find_program('dot')
|
||||
doxygen = find_program('doxygen')
|
||||
xsltproc = find_program('xsltproc')
|
||||
xmlto = find_program('xmlto')
|
||||
mdbook = find_program('mdbook')
|
||||
|
||||
cmd = run_command(doxygen, '--version', check: true)
|
||||
message('doxygen: ' + cmd.stdout().strip())
|
||||
vers = cmd.stdout().strip()
|
||||
if vers.version_compare('< 1.6.0')
|
||||
error('Doxygen 1.6 or later is required for building documentation, found @0@.'.format(vers))
|
||||
endif
|
||||
|
||||
cmd = run_command(dot, '-V', check: true)
|
||||
message('dot: ' + cmd.stderr().strip())
|
||||
vers = cmd.stderr().split('version')[1].strip().split(' ')[0]
|
||||
if vers.version_compare('< 2.26.0')
|
||||
error('Dot (Graphviz) 2.26 or later is required for building documentation, found @0@.'.format(vers))
|
||||
endif
|
||||
|
||||
manpage_xsl = 'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl'
|
||||
cmd = run_command(xsltproc, '--nonet', manpage_xsl, check: false)
|
||||
if cmd.returncode() != 0
|
||||
error('The style sheet for man pages providing "@0@" was not found.'.format(manpage_xsl))
|
||||
endif
|
||||
|
||||
publican_install_prefix = join_paths(
|
||||
get_option('prefix'),
|
||||
get_option('datadir'),
|
||||
'doc',
|
||||
meson.project_name(),
|
||||
'Wayland', 'en-US'
|
||||
)
|
||||
|
||||
publican_html_dir = 'html'
|
||||
|
||||
subdir('doxygen')
|
||||
subdir('publican')
|
||||
subdir('book')
|
||||
|
|
@ -1,92 +0,0 @@
|
|||
<?xml version='1.0' encoding='utf-8' ?>
|
||||
<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
|
||||
<!ENTITY % BOOK_ENTITIES SYSTEM "Wayland.ent">
|
||||
<!ENTITY doxygen SYSTEM "ClientAPI.xml">
|
||||
%BOOK_ENTITIES;
|
||||
]>
|
||||
<appendix id="sect-Library-Client">
|
||||
<title>Client API</title>
|
||||
<section><title>Introduction</title>
|
||||
<para>
|
||||
The open-source reference implementation of Wayland protocol is
|
||||
split in two C libraries, libwayland-client and <link
|
||||
linkend="sect-Library-Server">libwayland-server</link>. Their main
|
||||
responsibility is to handle the Inter-process communication
|
||||
(<emphasis>IPC</emphasis>) with each other, therefore guaranteeing
|
||||
the protocol objects marshaling and messages synchronization.
|
||||
</para>
|
||||
<para>
|
||||
A client uses libwayland-client to communicate with one or more
|
||||
wayland servers. A <link
|
||||
linkend="Client-classwl__display">wl_display</link> object is
|
||||
created and manages each open connection to a server. At least one
|
||||
<link linkend="Client-classwl__event__queue">wl_event_queue</link>
|
||||
object is created for each wl_display, this holds events as they
|
||||
are received from the server until they can be
|
||||
processed. Multi-threading is supported by creating an additional
|
||||
wl_event_queue for each additional thread, each object can have
|
||||
its events placed in a particular queue, so potentially a
|
||||
different thread could be made to handle the events for each
|
||||
object created.
|
||||
</para>
|
||||
<para>
|
||||
Though some convenience functions are provided, libwayland-client
|
||||
is designed to allow the calling code to wait for events, so that
|
||||
different polling mechanisms can be used. A file descriptor is
|
||||
provided, when it becomes ready for reading the calling code can
|
||||
ask libwayland-client to read the available events from it into
|
||||
the wl_event_queue objects.
|
||||
</para>
|
||||
<para>
|
||||
The library only provides low-level access to the wayland objects.
|
||||
Each object created by the client is represented by a <link
|
||||
linkend="Client-classwl__proxy">wl_proxy</link> object that this
|
||||
library creates. This includes the id that is actually
|
||||
communicated over the socket to the server, a void* data pointer
|
||||
that is intended to point at a client's representation of the
|
||||
object, and a pointer to a static <link
|
||||
linkend="Client-structwl__interface">wl_interface</link> object,
|
||||
which is generated from the xml and identifies the object's class
|
||||
and can be used for introspection into the messages and events.
|
||||
</para>
|
||||
<para>
|
||||
Messages are sent by calling wl_proxy_marshal. This will write a
|
||||
message to the socket, by using the message id and the
|
||||
wl_interface to identify the types of each argument and convert
|
||||
them into stream format. Most software will call type-safe
|
||||
wrappers generated from the xml description of the <link
|
||||
linkend="appe-Wayland-Protocol">Wayland protocols</link>. For
|
||||
instance the C header file generated from the xml defines the
|
||||
following inline function to transmit the <link
|
||||
linkend="protocol-spec-wl_surface-request-attach">wl_surface::attach</link>
|
||||
message:
|
||||
</para>
|
||||
<programlisting>static inline void
|
||||
wl_surface_attach(struct wl_surface *wl_surface, struct wl_buffer *buffer, int32_t x, int32_t y)
|
||||
{
|
||||
wl_proxy_marshal((struct wl_proxy *) wl_surface, WL_SURFACE_ATTACH, buffer, x, y);
|
||||
}</programlisting>
|
||||
<para>
|
||||
Events (messages from the server) are handled by calling a
|
||||
"dispatcher" callback the client stores in the wl_proxy for each
|
||||
event. A language binding for a string-based interpreter, such as
|
||||
CPython, might have a dispatcher that uses the event name from the
|
||||
wl_interface to identify the function to call. The default
|
||||
dispatcher uses the message id number to index an array of
|
||||
functions pointers, called a wl_listener, and the wl_interface to
|
||||
convert data from the stream into arguments to the function. The
|
||||
C header file generated from the xml defines a per-class structure
|
||||
that forces the function pointers to be of the correct type, for
|
||||
instance the <link
|
||||
linkend="protocol-spec-wl_surface-event-enter">wl_surface::enter</link>
|
||||
event defines this pointer in the wl_surface_listener object:
|
||||
</para>
|
||||
<programlisting>struct wl_surface_listener {
|
||||
void (*enter)(void *data, struct wl_surface *, struct wl_output *);
|
||||
...
|
||||
}</programlisting>
|
||||
<para>
|
||||
</para>
|
||||
</section>
|
||||
&doxygen;
|
||||
</appendix>
|
||||
135
doc/publican/Makefile.am
Normal file
135
doc/publican/Makefile.am
Normal file
|
|
@ -0,0 +1,135 @@
|
|||
# Documentation is built with publican
|
||||
# https://fedorahosted.org/publican/
|
||||
# Publican takes docbook-style input files and compiles them to various
|
||||
# output formats.
|
||||
#
|
||||
# How this build works:
|
||||
# * the main target is Wayland, documentation ends up in $(builddir)/Wayland/
|
||||
# * hand-written chapters are located in sources
|
||||
# Publican does not take a source path, so to support out-of-tree builds
|
||||
# these are copied to $(builddir)/en-US which is the actual directory
|
||||
# Publican uses.
|
||||
# * ProtocolSpec.xml is generated from $(top_srcdir)/protocol/wayland.xml,
|
||||
# changed into docbook via XSLT and saved in $(builddir)/en-US/
|
||||
# * ProtocolInterfaces.xml, same as above, uses a different XSLT
|
||||
# * WaylandClientAPI.xml is generated from the doxygen output and saved in
|
||||
# $(builddir)/en-US
|
||||
# * WaylandServerAPI.xml is generated from the doxygen output and saved in
|
||||
# $(builddir)/en-US
|
||||
# * run Publican on en-US
|
||||
publican_sources = \
|
||||
$(srcdir)/sources/Wayland.ent \
|
||||
$(srcdir)/sources/Wayland.xml \
|
||||
$(srcdir)/sources/Book_Info.xml \
|
||||
$(srcdir)/sources/Author_Group.xml \
|
||||
$(srcdir)/sources/Foreword.xml \
|
||||
$(srcdir)/sources/Preface.xml \
|
||||
$(srcdir)/sources/Revision_History.xml \
|
||||
$(srcdir)/sources/Introduction.xml \
|
||||
$(srcdir)/sources/Architecture.xml \
|
||||
$(srcdir)/sources/Protocol.xml \
|
||||
$(srcdir)/sources/Library.xml \
|
||||
$(srcdir)/sources/Compositors.xml \
|
||||
$(srcdir)/sources/images/icon.svg \
|
||||
$(srcdir)/sources/images/wayland-architecture.png \
|
||||
$(srcdir)/sources/images/wayland.png \
|
||||
$(srcdir)/sources/images/x-architecture.png
|
||||
|
||||
if HAVE_PUBLICAN
|
||||
if HAVE_XSLTPROC
|
||||
noinst_DATA = Wayland $(publican_targets)
|
||||
pubdir = $(docdir)/Wayland/en-US
|
||||
|
||||
publican_targets = $(publican_sources:$(srcdir)/sources%=$(builddir)/en-US%) \
|
||||
en-US/ProtocolSpec.xml en-US/ProtocolInterfaces.xml \
|
||||
en-US/WaylandClientAPI.xml en-US/WaylandServerAPI.xml
|
||||
|
||||
# The Protocol.xml is purely generated and required before running publican
|
||||
en-US/ProtocolSpec.xml: $(top_srcdir)/protocol/wayland.xml $(srcdir)/protocol-to-docbook.xsl
|
||||
$(AM_V_GEN)$(MKDIR_P) en-US/images
|
||||
$(AM_V_GEN)$(XSLTPROC) $(srcdir)/protocol-to-docbook.xsl \
|
||||
$(top_srcdir)/protocol/wayland.xml > en-US/ProtocolSpec.xml
|
||||
|
||||
en-US/ProtocolInterfaces.xml: $(top_srcdir)/protocol/wayland.xml $(srcdir)/protocol-interfaces-to-docbook.xsl
|
||||
$(AM_V_GEN)$(MKDIR_P) en-US/images
|
||||
$(AM_V_GEN)$(XSLTPROC) $(srcdir)/protocol-interfaces-to-docbook.xsl \
|
||||
$(top_srcdir)/protocol/wayland.xml > en-US/ProtocolInterfaces.xml
|
||||
|
||||
# * we don't want wayland-{server|client}_8h.xml to avoid duplicating output methods,
|
||||
# move it out of the way first.
|
||||
# * use doxygen's combine.xslt to merge the xml files into one single file
|
||||
# * move wayland-<foo>_8h.xml back to its original location
|
||||
en-US/%API.xml.tmp:
|
||||
$(AM_V_GEN)mv $(top_builddir)/doc/doxygen/xml/$*/wayland-$*_8h.xml \
|
||||
$(top_builddir)/doc/doxygen/xml/
|
||||
$(AM_V_GEN)$(XSLTPROC) $(top_builddir)/doc/doxygen/xml/$*/combine.xslt \
|
||||
$(top_builddir)/doc/doxygen/xml/$*/index.xml > $@
|
||||
$(AM_V_GEN)mv $(top_builddir)/doc/doxygen/xml/wayland-$*_8h.xml \
|
||||
$(top_builddir)/doc/doxygen/xml/$*
|
||||
|
||||
# WaylandClientAPI.xml:
|
||||
# merge doxygen xml files into one single file, then transform the combined XML file into docbook format
|
||||
en-US/WaylandClientAPI.xml: en-US/clientAPI.xml.tmp $(top_builddir)/doc/doxygen/xml/client/index.xml $(srcdir)/doxygen-to-publican.xsl
|
||||
$(AM_V_GEN)$(XSLTPROC) --stringparam which Client $(srcdir)/doxygen-to-publican.xsl \
|
||||
$(builddir)/en-US/clientAPI.xml.tmp > en-US/WaylandClientAPI.xml
|
||||
|
||||
# WaylandServerAPI.xml: see WaylandClientAPI.xml
|
||||
en-US/WaylandServerAPI.xml: en-US/serverAPI.xml.tmp $(top_builddir)/doc/doxygen/xml/client/index.xml $(srcdir)/doxygen-to-publican.xsl
|
||||
$(AM_V_GEN)$(XSLTPROC) --stringparam which Server $(srcdir)/doxygen-to-publican.xsl \
|
||||
$(builddir)/en-US/serverAPI.xml.tmp > en-US/WaylandServerAPI.xml
|
||||
|
||||
# Copy the sources source files into en-US destination
|
||||
# This is required for out-of-source-tree build as publican does not allow us
|
||||
# to specify the location of the source code.
|
||||
$(builddir)/en-US/%: $(srcdir)/sources/% en-US/ProtocolSpec.xml en-US/ProtocolInterfaces.xml en-US/WaylandClientAPI.xml $(publican_sources)
|
||||
$(AM_V_GEN)cp -f $< $@
|
||||
$(AM_V_GEN)chmod a+w $@
|
||||
|
||||
# Run publican for the builddir on the generated (or copied) source
|
||||
# The output formats are generated in the Wayland sub directory. Also, we need
|
||||
# to use a tmp publican.cfg cause 'publican rename' modifies the original.
|
||||
Wayland: $(publican_targets)
|
||||
$(AM_V_GEN)cp -f $(srcdir)/publican.cfg $(builddir)/publican-copy.cfg
|
||||
$(AM_V_GEN)$(PUBLICAN) rename --name Wayland \
|
||||
--version "$(WAYLAND_VERSION_MAJOR).$(WAYLAND_VERSION_MINOR)" \
|
||||
--config $(builddir)/publican-copy.cfg
|
||||
$(AM_V_GEN)$(PUBLICAN) build --quiet --langs en-US --pdftool fop --formats html,pdf \
|
||||
--config $(builddir)/publican-copy.cfg
|
||||
@touch Wayland
|
||||
|
||||
CLEANFILES = en-US/ProtocolSpec.xml en-US/ProtocolInterfaces.xml en-US/WaylandClientAPI.xml $(publican_targets)
|
||||
|
||||
clean-local:
|
||||
$(AM_V_at)rm -fr $(builddir)/en-US
|
||||
$(AM_V_at)rm -fr $(builddir)/Wayland
|
||||
$(AM_V_at)rm -fr $(builddir)/publican-copy.cfg
|
||||
|
||||
install-data-local:
|
||||
test -z "$(pubdir)/html/Common_Content/css" || $(mkdir_p) "$(DESTDIR)$(pubdir)/html/Common_Content/css"
|
||||
test -z "$(pubdir)/html/Common_Content/images" || $(mkdir_p) "$(DESTDIR)$(pubdir)/html/Common_Content/images"
|
||||
test -z "$(pubdir)/html/images" || $(mkdir_p) "$(DESTDIR)$(pubdir)/html/images"
|
||||
test -z "$(pubdir)/html-pdf/Common_Content/css" || $(mkdir_p) "$(DESTDIR)$(pubdir)/html-pdf/Common_Content/css"
|
||||
test -z "$(pubdir)/html-pdf/Common_Content/images" || $(mkdir_p) "$(DESTDIR)$(pubdir)/html-pdf/Common_Content/images"
|
||||
test -z "$(pubdir)/html-pdf/images" || $(mkdir_p) "$(DESTDIR)$(pubdir)/html-pdf/images"
|
||||
test -z "$(pubdir)/pdf" || $(mkdir_p) "$(DESTDIR)$(pubdir)/pdf"
|
||||
test -z "$(pubdir)/xml/Common_Content/css" || $(mkdir_p) "$(DESTDIR)$(pubdir)/xml/Common_Content/css"
|
||||
test -z "$(pubdir)/xml/Common_Content/images" || $(mkdir_p) "$(DESTDIR)$(pubdir)/xml/Common_Content/images"
|
||||
test -z "$(pubdir)/xml/images" || $(mkdir_p) "$(DESTDIR)$(pubdir)/xml/images"
|
||||
list=`find $(builddir)/Wayland/en-US -type f -not -path '$(builddir)/Wayland/en-US/xml_tmp*'`; \
|
||||
for p in $$list; do \
|
||||
echo " $(INSTALL_DATA) '$$p' '$(DESTDIR)$(docdir)/$$p'"; \
|
||||
$(INSTALL_DATA) "$$p" "$(DESTDIR)$(docdir)/$$p"; \
|
||||
done;
|
||||
|
||||
uninstall-local:
|
||||
@if test -n $(DESTDIR)$(docdir); then \
|
||||
if test -d $(DESTDIR)$(docdir); then \
|
||||
echo " rm -fr $(DESTDIR)$(docdir)/Wayland;"; \
|
||||
rm -fr $(DESTDIR)$(docdir)/Wayland; \
|
||||
fi; \
|
||||
fi;
|
||||
|
||||
endif
|
||||
endif
|
||||
|
||||
EXTRA_DIST = $(publican_sources) publican.cfg protocol-to-docbook.xsl protocol-interfaces-to-docbook.xsl doxygen-to-publican.xsl
|
||||
|
|
@ -1,49 +0,0 @@
|
|||
<?xml version='1.0' encoding='utf-8' ?>
|
||||
<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
|
||||
<!ENTITY % BOOK_ENTITIES SYSTEM "Wayland.ent">
|
||||
<!ENTITY doxygen SYSTEM "ServerAPI.xml">
|
||||
%BOOK_ENTITIES;
|
||||
]>
|
||||
<appendix id="sect-Library-Server">
|
||||
<title>Server API</title>
|
||||
<section><title>Introduction</title>
|
||||
<para>
|
||||
The open-source reference implementation of Wayland protocol is
|
||||
split in two C libraries, <link
|
||||
linkend="sect-Library-Client">libwayland-client</link> and
|
||||
libwayland-server. Their main responsibility is to handle the
|
||||
Inter-process communication (<emphasis>IPC</emphasis>) with each
|
||||
other, therefore guaranteeing the protocol objects marshaling and
|
||||
messages synchronization.
|
||||
</para>
|
||||
<para>
|
||||
The server library is designed to work much like libwayland-client,
|
||||
although it is considerably complicated due to the server needing
|
||||
to support multiple versions of the protocol. It is best to learn
|
||||
libwayland-client first.
|
||||
</para>
|
||||
<para>
|
||||
Each open socket to a client is represented by a <link
|
||||
linkend="Server-structwl__client">wl_client</link>. The equivalent
|
||||
of the <link linkend="Client-classwl__proxy">wl_proxy</link> that
|
||||
libwayland-client uses to represent an object is <link
|
||||
linkend="Server-structwl__resource">wl_resource</link> for
|
||||
client-created objects, and <link
|
||||
linkend="Server-structwl__global">wl_global</link> for objects
|
||||
created by the server.
|
||||
</para>
|
||||
<para>
|
||||
Often a server is also a client for another Wayland server, and
|
||||
thus must link with both libwayland-client and libwayland-server.
|
||||
This produces some type name conflicts (such as the <link
|
||||
linkend="Client-classwl__display">client wl_display</link> and
|
||||
<link linkend="Server-structwl__display">server wl_display</link>,
|
||||
but the duplicate-but-not-the-same types are opaque, and accessed
|
||||
only inside the correct library where it came from. Naturally that
|
||||
means that the program writer needs to always know if a pointer to
|
||||
a wl_display is for the server or client side and use the
|
||||
corresponding functions.
|
||||
</para>
|
||||
</section>
|
||||
&doxygen;
|
||||
</appendix>
|
||||
|
|
@ -1,12 +0,0 @@
|
|||
<?xml version='1.0' encoding='utf-8' ?>
|
||||
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
|
||||
<!ENTITY % BOOK_ENTITIES SYSTEM "Wayland.ent">
|
||||
%BOOK_ENTITIES;
|
||||
]>
|
||||
<book>
|
||||
<xi:include href="Book_Info.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
|
||||
<xi:include href="Foreword.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
|
||||
<xi:include href="ProtocolSpec.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
|
||||
<xi:include href="Client.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
|
||||
<xi:include href="Server.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
|
||||
</book>
|
||||
166
doc/publican/doxygen-to-publican.xsl
Normal file
166
doc/publican/doxygen-to-publican.xsl
Normal file
|
|
@ -0,0 +1,166 @@
|
|||
<?xml version="1.0" ?>
|
||||
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
|
||||
<xsl:output method="xml" encoding="UTF-8" indent="yes" />
|
||||
<xsl:param name="which" />
|
||||
|
||||
<xsl:template match="/">
|
||||
<!-- insert docbook's DOCTYPE blurb -->
|
||||
<xsl:text disable-output-escaping = "yes"><![CDATA[
|
||||
<!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
|
||||
<!ENTITY % BOOK_ENTITIES SYSTEM "Wayland.ent">
|
||||
%BOOK_ENTITIES;
|
||||
]>
|
||||
]]></xsl:text>
|
||||
|
||||
<section id="sect-Library-$which">
|
||||
<xsl:attribute name="id">sect-Library-<xsl:value-of select="$which"/></xsl:attribute>
|
||||
<title><xsl:value-of select="$which"/> API</title>
|
||||
<para>Following is the Wayland library classes for the <xsl:value-of select="$which"/>
|
||||
(<emphasis>libwayland-<xsl:value-of select="translate($which, 'SC', 'sc')"/></emphasis>).
|
||||
Note that most of the procedures are related with IPC, which is the main responsibility of
|
||||
the library.
|
||||
</para>
|
||||
|
||||
<xsl:if test="/doxygen/compounddef[@kind='class']">
|
||||
<para>
|
||||
<variablelist>
|
||||
<xsl:apply-templates select="/doxygen/compounddef" />
|
||||
</variablelist>
|
||||
</para>
|
||||
</xsl:if>
|
||||
|
||||
<para>Methods for the respective classes.</para>
|
||||
|
||||
<para>
|
||||
<variablelist>
|
||||
<xsl:apply-templates select="/doxygen/compounddef/sectiondef/memberdef" />
|
||||
</variablelist>
|
||||
</para>
|
||||
</section>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="parameteritem">
|
||||
<varlistentry>
|
||||
<term>
|
||||
<xsl:value-of select="parameternamelist/parametername"/>
|
||||
</term>
|
||||
<listitem>
|
||||
<para>
|
||||
<xsl:value-of select="parameterdescription/para"/>
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="parameterlist">
|
||||
<xsl:if test="parameteritem">
|
||||
<variablelist>
|
||||
<xsl:apply-templates select="parameteritem" />
|
||||
</variablelist>
|
||||
</xsl:if>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="ref">
|
||||
<emphasis><xsl:value-of select="." /></emphasis>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="simplesect[@kind='return']">
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term>Returns:</term>
|
||||
<listitem>
|
||||
<para>
|
||||
<xsl:value-of select="." />
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="simplesect[@kind='see']">
|
||||
<itemizedlist>
|
||||
<listitem>
|
||||
<para>
|
||||
See also:
|
||||
<xsl:for-each select="para/ref">
|
||||
<emphasis><xsl:value-of select="."/><xsl:text> </xsl:text></emphasis>
|
||||
</xsl:for-each>
|
||||
</para>
|
||||
</listitem>
|
||||
</itemizedlist>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="simplesect[@kind='since']">
|
||||
<itemizedlist>
|
||||
<listitem>
|
||||
<para>
|
||||
Since: <xsl:value-of select="para"/>
|
||||
</para>
|
||||
</listitem>
|
||||
</itemizedlist>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="simplesect[@kind='note']">
|
||||
<emphasis>Note: <xsl:value-of select="."/></emphasis>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="programlisting">
|
||||
<programlisting><xsl:value-of select="."/></programlisting>
|
||||
</xsl:template>
|
||||
|
||||
<!-- this opens a para for each detaileddescription/para. I could not find a
|
||||
way to extract the right text for the description from the
|
||||
source otherwise. Downside: we can't use para for return value, "see
|
||||
also", etc. because they're already inside a para. So they're lists.
|
||||
|
||||
It also means we don't control the order of when something is added to
|
||||
the output, it matches the input file
|
||||
-->
|
||||
<xsl:template match="detaileddescription/para">
|
||||
<para><xsl:apply-templates /></para>
|
||||
</xsl:template>
|
||||
|
||||
<xsl:template match="detaileddescription">
|
||||
<xsl:apply-templates select="para" />
|
||||
</xsl:template>
|
||||
|
||||
<!-- methods -->
|
||||
<xsl:template match="memberdef" >
|
||||
<xsl:if test="@kind = 'function' and @static = 'no'">
|
||||
<varlistentry>
|
||||
<term>
|
||||
<xsl:value-of select="name"/>
|
||||
- <xsl:value-of select="briefdescription" />
|
||||
</term>
|
||||
<listitem>
|
||||
<para>
|
||||
<synopsis>
|
||||
<xsl:value-of select="definition"/><xsl:value-of select="argsstring"/>
|
||||
</synopsis>
|
||||
</para>
|
||||
<xsl:apply-templates select="detaileddescription" />
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</xsl:if>
|
||||
</xsl:template>
|
||||
|
||||
<!-- classes -->
|
||||
<xsl:template match="compounddef" >
|
||||
<xsl:if test="@kind = 'class' ">
|
||||
<varlistentry>
|
||||
<term>
|
||||
<xsl:value-of select="compoundname" />
|
||||
<xsl:if test="briefdescription">
|
||||
- <xsl:value-of select="briefdescription" />
|
||||
</xsl:if>
|
||||
</term>
|
||||
|
||||
<listitem>
|
||||
<xsl:for-each select="detaileddescription/para">
|
||||
<para><xsl:value-of select="." /></para>
|
||||
</xsl:for-each>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</xsl:if>
|
||||
</xsl:template>
|
||||
</xsl:stylesheet>
|
||||
File diff suppressed because it is too large
Load diff
|
|
@ -1,3 +0,0 @@
|
|||
@import url("common.css");
|
||||
@import url("overrides.css");
|
||||
@import url("lang.css");
|
||||
|
|
@ -1,11 +0,0 @@
|
|||
foreach src : files([
|
||||
'common.css',
|
||||
'default.css',
|
||||
])
|
||||
name = fs.name(src)
|
||||
publican_inputs += fs.copyfile(
|
||||
name,
|
||||
install: true,
|
||||
install_dir: publican_install_prefix + '/html/css',
|
||||
)
|
||||
endforeach
|
||||
|
|
@ -1,19 +0,0 @@
|
|||
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
||||
<svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.0" width="32" height="32" id="svg3017">
|
||||
<defs id="defs3019">
|
||||
<linearGradient id="linearGradient2381">
|
||||
<stop id="stop2383" style="stop-color:#ffffff;stop-opacity:1" offset="0"/>
|
||||
<stop id="stop2385" style="stop-color:#ffffff;stop-opacity:0" offset="1"/>
|
||||
</linearGradient>
|
||||
<linearGradient x1="296.4996" y1="188.81061" x2="317.32471" y2="209.69398" id="linearGradient2371" xlink:href="#linearGradient2381" gradientUnits="userSpaceOnUse" gradientTransform="matrix(0.90776,0,0,0.90776,24.35648,49.24131)"/>
|
||||
</defs>
|
||||
<g transform="matrix(0.437808,-0.437808,0.437808,0.437808,-220.8237,43.55311)" id="g5089">
|
||||
<path d="m 8.4382985,-6.28125 c -0.6073916,0 -4.3132985,5.94886271 -4.3132985,8.25 l 0,26.71875 c 0,0.846384 0.5818159,1.125 1.15625,1.125 l 25.5625,0 c 0.632342,0 1.125001,-0.492658 1.125,-1.125 l 0,-5.21875 0.28125,0 c 0.49684,0 0.906249,-0.409411 0.90625,-0.90625 l 0,-27.9375 c 0,-0.4968398 -0.40941,-0.90625 -0.90625,-0.90625 l -23.8117015,0 z" transform="translate(282.8327,227.1903)" id="path5091" style="fill:#5c5c4f;stroke:#000000;stroke-width:3.23021388;stroke-miterlimit:4;stroke-dasharray:none"/>
|
||||
<rect width="27.85074" height="29.369793" rx="1.1414107" ry="1.1414107" x="286.96509" y="227.63805" id="rect5093" style="fill:#032c87"/>
|
||||
<path d="m 288.43262,225.43675 25.2418,0 0,29.3698 -26.37615,0.0241 1.13435,-29.39394 z" id="rect5095" style="fill:#ffffff"/>
|
||||
<path d="m 302.44536,251.73726 c 1.38691,7.85917 -0.69311,11.28365 -0.69311,11.28365 2.24384,-1.60762 3.96426,-3.47694 4.90522,-5.736 0.96708,2.19264 1.83294,4.42866 4.27443,5.98941 0,0 -1.59504,-7.2004 -1.71143,-11.53706 l -6.77511,0 z" id="path5097" style="fill:#a70000;fill-opacity:1;stroke-width:2"/>
|
||||
<rect width="25.241802" height="29.736675" rx="0.89682275" ry="0.89682275" x="290.73544" y="220.92249" id="rect5099" style="fill:#809cc9"/>
|
||||
<path d="m 576.47347,725.93939 6.37084,0.41502 0.4069,29.51809 c -1.89202,-1.31785 -6.85427,-3.7608 -8.26232,-1.68101 l 0,-26.76752 c 0,-0.82246 0.66212,-1.48458 1.48458,-1.48458 z" transform="matrix(0.499065,-0.866565,0,1,0,0)" id="rect5101" style="fill:#4573b3;fill-opacity:1"/>
|
||||
<path d="m 293.2599,221.89363 20.73918,0 c 0.45101,0 0.8141,0.3631 0.8141,0.81411 0.21547,6.32836 -19.36824,21.7635 -22.36739,17.59717 l 0,-17.59717 c 0,-0.45101 0.3631,-0.81411 0.81411,-0.81411 z" id="path5103" style="opacity:0.65536726;fill:url(#linearGradient2371);fill-opacity:1"/>
|
||||
</g>
|
||||
</svg>
|
||||
|
Before Width: | Height: | Size: 2.6 KiB |
|
|
@ -1,11 +0,0 @@
|
|||
foreach src : files([
|
||||
'icon.svg',
|
||||
'wayland.png',
|
||||
])
|
||||
name = fs.name(src)
|
||||
publican_inputs += fs.copyfile(
|
||||
name,
|
||||
install: true,
|
||||
install_dir: publican_install_prefix + '/html/images',
|
||||
)
|
||||
endforeach
|
||||
Some files were not shown because too many files have changed in this diff Show more
Loading…
Add table
Add a link
Reference in a new issue