Repository: ponty/framebuffer-vncserver Branch: master Commit: 1963e57bebfd Files: 58 Total size: 115.8 KB Directory structure: gitextract_gwh7gede/ ├── .git/ │ ├── HEAD │ ├── config │ ├── description │ ├── hooks/ │ │ ├── applypatch-msg.sample │ │ ├── commit-msg.sample │ │ ├── fsmonitor-watchman.sample │ │ ├── post-update.sample │ │ ├── pre-applypatch.sample │ │ ├── pre-commit.sample │ │ ├── pre-merge-commit.sample │ │ ├── pre-push.sample │ │ ├── pre-rebase.sample │ │ ├── pre-receive.sample │ │ ├── prepare-commit-msg.sample │ │ ├── push-to-checkout.sample │ │ ├── sendemail-validate.sample │ │ └── update.sample │ ├── index │ ├── info/ │ │ └── exclude │ ├── logs/ │ │ ├── HEAD │ │ └── refs/ │ │ ├── heads/ │ │ │ └── master │ │ └── remotes/ │ │ └── origin/ │ │ └── HEAD │ ├── objects/ │ │ └── pack/ │ │ ├── pack-bef8852657c06b106e38622c43f30aebfe12ac48.idx │ │ ├── pack-bef8852657c06b106e38622c43f30aebfe12ac48.pack │ │ ├── pack-bef8852657c06b106e38622c43f30aebfe12ac48.promisor │ │ └── pack-bef8852657c06b106e38622c43f30aebfe12ac48.rev │ ├── packed-refs │ ├── refs/ │ │ ├── heads/ │ │ │ └── master │ │ └── remotes/ │ │ └── origin/ │ │ └── HEAD │ └── shallow ├── .github/ │ └── workflows/ │ └── main.yml ├── .gitignore ├── .travis.yml.bak ├── CMakeLists.txt ├── Dockerfile ├── LICENSE ├── README.md ├── Vagrantfile ├── Vagrantfile.20.04.rb ├── deployment.pri ├── fbvnc.service ├── format-code.sh ├── framebuffer-vncserver.pro ├── gradient.py ├── src/ │ ├── framebuffer-vncserver.c │ ├── keyboard.c │ ├── keyboard.h │ ├── logging.h │ ├── mouse.c │ ├── mouse.h │ ├── touch.c │ └── touch.h ├── tests/ │ └── vfb/ │ ├── Makefile │ ├── README │ └── ins.sh ├── vagrant.sh ├── vfb.py └── yocto/ └── framebuffer-vncserver_git.bb ================================================ FILE CONTENTS ================================================ ================================================ FILE: .git/HEAD ================================================ ref: refs/heads/master ================================================ FILE: .git/config ================================================ [core] repositoryformatversion = 1 filemode = true bare = false logallrefupdates = true [remote "origin"] url = https://github.com/ponty/framebuffer-vncserver tagOpt = --no-tags fetch = +refs/heads/master:refs/remotes/origin/master promisor = true partialclonefilter = blob:limit=1048576 [branch "master"] remote = origin merge = refs/heads/master ================================================ FILE: .git/description ================================================ Unnamed repository; edit this file 'description' to name the repository. ================================================ FILE: .git/hooks/applypatch-msg.sample ================================================ #!/bin/sh # # An example hook script to check the commit log message taken by # applypatch from an e-mail message. # # The hook should exit with non-zero status after issuing an # appropriate message if it wants to stop the commit. The hook is # allowed to edit the commit message file. # # To enable this hook, rename this file to "applypatch-msg". . git-sh-setup commitmsg="$(git rev-parse --git-path hooks/commit-msg)" test -x "$commitmsg" && exec "$commitmsg" ${1+"$@"} : ================================================ FILE: .git/hooks/commit-msg.sample ================================================ #!/bin/sh # # An example hook script to check the commit log message. # Called by "git commit" with one argument, the name of the file # that has the commit message. The hook should exit with non-zero # status after issuing an appropriate message if it wants to stop the # commit. The hook is allowed to edit the commit message file. # # To enable this hook, rename this file to "commit-msg". # Uncomment the below to add a Signed-off-by line to the message. # Doing this in a hook is a bad idea in general, but the prepare-commit-msg # hook is more suited to it. # # SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p') # grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1" # This example catches duplicate Signed-off-by lines. test "" = "$(grep '^Signed-off-by: ' "$1" | sort | uniq -c | sed -e '/^[ ]*1[ ]/d')" || { echo >&2 Duplicate Signed-off-by lines. exit 1 } ================================================ FILE: .git/hooks/fsmonitor-watchman.sample ================================================ #!/usr/bin/perl use strict; use warnings; use IPC::Open2; # An example hook script to integrate Watchman # (https://facebook.github.io/watchman/) with git to speed up detecting # new and modified files. # # The hook is passed a version (currently 2) and last update token # formatted as a string and outputs to stdout a new update token and # all files that have been modified since the update token. Paths must # be relative to the root of the working tree and separated by a single NUL. # # To enable this hook, rename this file to "query-watchman" and set # 'git config core.fsmonitor .git/hooks/query-watchman' # my ($version, $last_update_token) = @ARGV; # Uncomment for debugging # print STDERR "$0 $version $last_update_token\n"; # Check the hook interface version if ($version ne 2) { die "Unsupported query-fsmonitor hook version '$version'.\n" . "Falling back to scanning...\n"; } my $git_work_tree = get_working_dir(); my $retry = 1; my $json_pkg; eval { require JSON::XS; $json_pkg = "JSON::XS"; 1; } or do { require JSON::PP; $json_pkg = "JSON::PP"; }; launch_watchman(); sub launch_watchman { my $o = watchman_query(); if (is_work_tree_watched($o)) { output_result($o->{clock}, @{$o->{files}}); } } sub output_result { my ($clockid, @files) = @_; # Uncomment for debugging watchman output # open (my $fh, ">", ".git/watchman-output.out"); # binmode $fh, ":utf8"; # print $fh "$clockid\n@files\n"; # close $fh; binmode STDOUT, ":utf8"; print $clockid; print "\0"; local $, = "\0"; print @files; } sub watchman_clock { my $response = qx/watchman clock "$git_work_tree"/; die "Failed to get clock id on '$git_work_tree'.\n" . "Falling back to scanning...\n" if $? != 0; return $json_pkg->new->utf8->decode($response); } sub watchman_query { my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'watchman -j --no-pretty') or die "open2() failed: $!\n" . "Falling back to scanning...\n"; # In the query expression below we're asking for names of files that # changed since $last_update_token but not from the .git folder. # # To accomplish this, we're using the "since" generator to use the # recency index to select candidate nodes and "fields" to limit the # output to file names only. Then we're using the "expression" term to # further constrain the results. my $last_update_line = ""; if (substr($last_update_token, 0, 1) eq "c") { $last_update_token = "\"$last_update_token\""; $last_update_line = qq[\n"since": $last_update_token,]; } my $query = <<" END"; ["query", "$git_work_tree", {$last_update_line "fields": ["name"], "expression": ["not", ["dirname", ".git"]] }] END # Uncomment for debugging the watchman query # open (my $fh, ">", ".git/watchman-query.json"); # print $fh $query; # close $fh; print CHLD_IN $query; close CHLD_IN; my $response = do {local $/; }; # Uncomment for debugging the watch response # open ($fh, ">", ".git/watchman-response.json"); # print $fh $response; # close $fh; die "Watchman: command returned no output.\n" . "Falling back to scanning...\n" if $response eq ""; die "Watchman: command returned invalid output: $response\n" . "Falling back to scanning...\n" unless $response =~ /^\{/; return $json_pkg->new->utf8->decode($response); } sub is_work_tree_watched { my ($output) = @_; my $error = $output->{error}; if ($retry > 0 and $error and $error =~ m/unable to resolve root .* directory (.*) is not watched/) { $retry--; my $response = qx/watchman watch "$git_work_tree"/; die "Failed to make watchman watch '$git_work_tree'.\n" . "Falling back to scanning...\n" if $? != 0; $output = $json_pkg->new->utf8->decode($response); $error = $output->{error}; die "Watchman: $error.\n" . "Falling back to scanning...\n" if $error; # Uncomment for debugging watchman output # open (my $fh, ">", ".git/watchman-output.out"); # close $fh; # Watchman will always return all files on the first query so # return the fast "everything is dirty" flag to git and do the # Watchman query just to get it over with now so we won't pay # the cost in git to look up each individual file. my $o = watchman_clock(); $error = $output->{error}; die "Watchman: $error.\n" . "Falling back to scanning...\n" if $error; output_result($o->{clock}, ("/")); $last_update_token = $o->{clock}; eval { launch_watchman() }; return 0; } die "Watchman: $error.\n" . "Falling back to scanning...\n" if $error; return 1; } sub get_working_dir { my $working_dir; if ($^O =~ 'msys' || $^O =~ 'cygwin') { $working_dir = Win32::GetCwd(); $working_dir =~ tr/\\/\//; } else { require Cwd; $working_dir = Cwd::cwd(); } return $working_dir; } ================================================ FILE: .git/hooks/post-update.sample ================================================ #!/bin/sh # # An example hook script to prepare a packed repository for use over # dumb transports. # # To enable this hook, rename this file to "post-update". exec git update-server-info ================================================ FILE: .git/hooks/pre-applypatch.sample ================================================ #!/bin/sh # # An example hook script to verify what is about to be committed # by applypatch from an e-mail message. # # The hook should exit with non-zero status after issuing an # appropriate message if it wants to stop the commit. # # To enable this hook, rename this file to "pre-applypatch". . git-sh-setup precommit="$(git rev-parse --git-path hooks/pre-commit)" test -x "$precommit" && exec "$precommit" ${1+"$@"} : ================================================ FILE: .git/hooks/pre-commit.sample ================================================ #!/bin/sh # # An example hook script to verify what is about to be committed. # Called by "git commit" with no arguments. The hook should # exit with non-zero status after issuing an appropriate message if # it wants to stop the commit. # # To enable this hook, rename this file to "pre-commit". if git rev-parse --verify HEAD >/dev/null 2>&1 then against=HEAD else # Initial commit: diff against an empty tree object against=$(git hash-object -t tree /dev/null) fi # If you want to allow non-ASCII filenames set this variable to true. allownonascii=$(git config --type=bool hooks.allownonascii) # Redirect output to stderr. exec 1>&2 # Cross platform projects tend to avoid non-ASCII filenames; prevent # them from being added to the repository. We exploit the fact that the # printable range starts at the space character and ends with tilde. if [ "$allownonascii" != "true" ] && # Note that the use of brackets around a tr range is ok here, (it's # even required, for portability to Solaris 10's /usr/bin/tr), since # the square bracket bytes happen to fall in the designated range. test $(git diff-index --cached --name-only --diff-filter=A -z $against | LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0 then cat <<\EOF Error: Attempt to add a non-ASCII file name. This can cause problems if you want to work with people on other platforms. To be portable it is advisable to rename the file. If you know what you are doing you can disable this check using: git config hooks.allownonascii true EOF exit 1 fi # If there are whitespace errors, print the offending file names and fail. exec git diff-index --check --cached $against -- ================================================ FILE: .git/hooks/pre-merge-commit.sample ================================================ #!/bin/sh # # An example hook script to verify what is about to be committed. # Called by "git merge" with no arguments. The hook should # exit with non-zero status after issuing an appropriate message to # stderr if it wants to stop the merge commit. # # To enable this hook, rename this file to "pre-merge-commit". . git-sh-setup test -x "$GIT_DIR/hooks/pre-commit" && exec "$GIT_DIR/hooks/pre-commit" : ================================================ FILE: .git/hooks/pre-push.sample ================================================ #!/bin/sh # An example hook script to verify what is about to be pushed. Called by "git # push" after it has checked the remote status, but before anything has been # pushed. If this script exits with a non-zero status nothing will be pushed. # # This hook is called with the following parameters: # # $1 -- Name of the remote to which the push is being done # $2 -- URL to which the push is being done # # If pushing without using a named remote those arguments will be equal. # # Information about the commits which are being pushed is supplied as lines to # the standard input in the form: # # # # This sample shows how to prevent push of commits where the log message starts # with "WIP" (work in progress). remote="$1" url="$2" zero=$(git hash-object --stdin &2 "Found WIP commit in $local_ref, not pushing" exit 1 fi fi done exit 0 ================================================ FILE: .git/hooks/pre-rebase.sample ================================================ #!/bin/sh # # Copyright (c) 2006, 2008 Junio C Hamano # # The "pre-rebase" hook is run just before "git rebase" starts doing # its job, and can prevent the command from running by exiting with # non-zero status. # # The hook is called with the following parameters: # # $1 -- the upstream the series was forked from. # $2 -- the branch being rebased (or empty when rebasing the current branch). # # This sample shows how to prevent topic branches that are already # merged to 'next' branch from getting rebased, because allowing it # would result in rebasing already published history. publish=next basebranch="$1" if test "$#" = 2 then topic="refs/heads/$2" else topic=`git symbolic-ref HEAD` || exit 0 ;# we do not interrupt rebasing detached HEAD fi case "$topic" in refs/heads/??/*) ;; *) exit 0 ;# we do not interrupt others. ;; esac # Now we are dealing with a topic branch being rebased # on top of master. Is it OK to rebase it? # Does the topic really exist? git show-ref -q "$topic" || { echo >&2 "No such branch $topic" exit 1 } # Is topic fully merged to master? not_in_master=`git rev-list --pretty=oneline ^master "$topic"` if test -z "$not_in_master" then echo >&2 "$topic is fully merged to master; better remove it." exit 1 ;# we could allow it, but there is no point. fi # Is topic ever merged to next? If so you should not be rebasing it. only_next_1=`git rev-list ^master "^$topic" ${publish} | sort` only_next_2=`git rev-list ^master ${publish} | sort` if test "$only_next_1" = "$only_next_2" then not_in_topic=`git rev-list "^$topic" master` if test -z "$not_in_topic" then echo >&2 "$topic is already up to date with master" exit 1 ;# we could allow it, but there is no point. else exit 0 fi else not_in_next=`git rev-list --pretty=oneline ^${publish} "$topic"` /usr/bin/perl -e ' my $topic = $ARGV[0]; my $msg = "* $topic has commits already merged to public branch:\n"; my (%not_in_next) = map { /^([0-9a-f]+) /; ($1 => 1); } split(/\n/, $ARGV[1]); for my $elem (map { /^([0-9a-f]+) (.*)$/; [$1 => $2]; } split(/\n/, $ARGV[2])) { if (!exists $not_in_next{$elem->[0]}) { if ($msg) { print STDERR $msg; undef $msg; } print STDERR " $elem->[1]\n"; } } ' "$topic" "$not_in_next" "$not_in_master" exit 1 fi <<\DOC_END This sample hook safeguards topic branches that have been published from being rewound. The workflow assumed here is: * Once a topic branch forks from "master", "master" is never merged into it again (either directly or indirectly). * Once a topic branch is fully cooked and merged into "master", it is deleted. If you need to build on top of it to correct earlier mistakes, a new topic branch is created by forking at the tip of the "master". This is not strictly necessary, but it makes it easier to keep your history simple. * Whenever you need to test or publish your changes to topic branches, merge them into "next" branch. The script, being an example, hardcodes the publish branch name to be "next", but it is trivial to make it configurable via $GIT_DIR/config mechanism. With this workflow, you would want to know: (1) ... if a topic branch has ever been merged to "next". Young topic branches can have stupid mistakes you would rather clean up before publishing, and things that have not been merged into other branches can be easily rebased without affecting other people. But once it is published, you would not want to rewind it. (2) ... if a topic branch has been fully merged to "master". Then you can delete it. More importantly, you should not build on top of it -- other people may already want to change things related to the topic as patches against your "master", so if you need further changes, it is better to fork the topic (perhaps with the same name) afresh from the tip of "master". Let's look at this example: o---o---o---o---o---o---o---o---o---o "next" / / / / / a---a---b A / / / / / / / / c---c---c---c B / / / / \ / / / / b---b C \ / / / / / \ / ---o---o---o---o---o---o---o---o---o---o---o "master" A, B and C are topic branches. * A has one fix since it was merged up to "next". * B has finished. It has been fully merged up to "master" and "next", and is ready to be deleted. * C has not merged to "next" at all. We would want to allow C to be rebased, refuse A, and encourage B to be deleted. To compute (1): git rev-list ^master ^topic next git rev-list ^master next if these match, topic has not merged in next at all. To compute (2): git rev-list master..topic if this is empty, it is fully merged to "master". DOC_END ================================================ FILE: .git/hooks/pre-receive.sample ================================================ #!/bin/sh # # An example hook script to make use of push options. # The example simply echoes all push options that start with 'echoback=' # and rejects all pushes when the "reject" push option is used. # # To enable this hook, rename this file to "pre-receive". if test -n "$GIT_PUSH_OPTION_COUNT" then i=0 while test "$i" -lt "$GIT_PUSH_OPTION_COUNT" do eval "value=\$GIT_PUSH_OPTION_$i" case "$value" in echoback=*) echo "echo from the pre-receive-hook: ${value#*=}" >&2 ;; reject) exit 1 esac i=$((i + 1)) done fi ================================================ FILE: .git/hooks/prepare-commit-msg.sample ================================================ #!/bin/sh # # An example hook script to prepare the commit log message. # Called by "git commit" with the name of the file that has the # commit message, followed by the description of the commit # message's source. The hook's purpose is to edit the commit # message file. If the hook fails with a non-zero status, # the commit is aborted. # # To enable this hook, rename this file to "prepare-commit-msg". # This hook includes three examples. The first one removes the # "# Please enter the commit message..." help message. # # The second includes the output of "git diff --name-status -r" # into the message, just before the "git status" output. It is # commented because it doesn't cope with --amend or with squashed # commits. # # The third example adds a Signed-off-by line to the message, that can # still be edited. This is rarely a good idea. COMMIT_MSG_FILE=$1 COMMIT_SOURCE=$2 SHA1=$3 /usr/bin/perl -i.bak -ne 'print unless(m/^. Please enter the commit message/..m/^#$/)' "$COMMIT_MSG_FILE" # case "$COMMIT_SOURCE,$SHA1" in # ,|template,) # /usr/bin/perl -i.bak -pe ' # print "\n" . `git diff --cached --name-status -r` # if /^#/ && $first++ == 0' "$COMMIT_MSG_FILE" ;; # *) ;; # esac # SOB=$(git var GIT_COMMITTER_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p') # git interpret-trailers --in-place --trailer "$SOB" "$COMMIT_MSG_FILE" # if test -z "$COMMIT_SOURCE" # then # /usr/bin/perl -i.bak -pe 'print "\n" if !$first_line++' "$COMMIT_MSG_FILE" # fi ================================================ FILE: .git/hooks/push-to-checkout.sample ================================================ #!/bin/sh # An example hook script to update a checked-out tree on a git push. # # This hook is invoked by git-receive-pack(1) when it reacts to git # push and updates reference(s) in its repository, and when the push # tries to update the branch that is currently checked out and the # receive.denyCurrentBranch configuration variable is set to # updateInstead. # # By default, such a push is refused if the working tree and the index # of the remote repository has any difference from the currently # checked out commit; when both the working tree and the index match # the current commit, they are updated to match the newly pushed tip # of the branch. This hook is to be used to override the default # behaviour; however the code below reimplements the default behaviour # as a starting point for convenient modification. # # The hook receives the commit with which the tip of the current # branch is going to be updated: commit=$1 # It can exit with a non-zero status to refuse the push (when it does # so, it must not modify the index or the working tree). die () { echo >&2 "$*" exit 1 } # Or it can make any necessary changes to the working tree and to the # index to bring them to the desired state when the tip of the current # branch is updated to the new commit, and exit with a zero status. # # For example, the hook can simply run git read-tree -u -m HEAD "$1" # in order to emulate git fetch that is run in the reverse direction # with git push, as the two-tree form of git read-tree -u -m is # essentially the same as git switch or git checkout that switches # branches while keeping the local changes in the working tree that do # not interfere with the difference between the branches. # The below is a more-or-less exact translation to shell of the C code # for the default behaviour for git's push-to-checkout hook defined in # the push_to_deploy() function in builtin/receive-pack.c. # # Note that the hook will be executed from the repository directory, # not from the working tree, so if you want to perform operations on # the working tree, you will have to adapt your code accordingly, e.g. # by adding "cd .." or using relative paths. if ! git update-index -q --ignore-submodules --refresh then die "Up-to-date check failed" fi if ! git diff-files --quiet --ignore-submodules -- then die "Working directory has unstaged changes" fi # This is a rough translation of: # # head_has_history() ? "HEAD" : EMPTY_TREE_SHA1_HEX if git cat-file -e HEAD 2>/dev/null then head=HEAD else head=$(git hash-object -t tree --stdin &2 exit 1 } unset GIT_DIR GIT_WORK_TREE cd "$worktree" && if grep -q "^diff --git " "$1" then validate_patch "$1" else validate_cover_letter "$1" fi && if test "$GIT_SENDEMAIL_FILE_COUNTER" = "$GIT_SENDEMAIL_FILE_TOTAL" then git config --unset-all sendemail.validateWorktree && trap 'git worktree remove -ff "$worktree"' EXIT && validate_series fi ================================================ FILE: .git/hooks/update.sample ================================================ #!/bin/sh # # An example hook script to block unannotated tags from entering. # Called by "git receive-pack" with arguments: refname sha1-old sha1-new # # To enable this hook, rename this file to "update". # # Config # ------ # hooks.allowunannotated # This boolean sets whether unannotated tags will be allowed into the # repository. By default they won't be. # hooks.allowdeletetag # This boolean sets whether deleting tags will be allowed in the # repository. By default they won't be. # hooks.allowmodifytag # This boolean sets whether a tag may be modified after creation. By default # it won't be. # hooks.allowdeletebranch # This boolean sets whether deleting branches will be allowed in the # repository. By default they won't be. # hooks.denycreatebranch # This boolean sets whether remotely creating branches will be denied # in the repository. By default this is allowed. # # --- Command line refname="$1" oldrev="$2" newrev="$3" # --- Safety check if [ -z "$GIT_DIR" ]; then echo "Don't run this script from the command line." >&2 echo " (if you want, you could supply GIT_DIR then run" >&2 echo " $0 )" >&2 exit 1 fi if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then echo "usage: $0 " >&2 exit 1 fi # --- Config allowunannotated=$(git config --type=bool hooks.allowunannotated) allowdeletebranch=$(git config --type=bool hooks.allowdeletebranch) denycreatebranch=$(git config --type=bool hooks.denycreatebranch) allowdeletetag=$(git config --type=bool hooks.allowdeletetag) allowmodifytag=$(git config --type=bool hooks.allowmodifytag) # check for no description projectdesc=$(sed -e '1q' "$GIT_DIR/description") case "$projectdesc" in "Unnamed repository"* | "") echo "*** Project description file hasn't been set" >&2 exit 1 ;; esac # --- Check types # if $newrev is 0000...0000, it's a commit to delete a ref. zero=$(git hash-object --stdin &2 echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2 exit 1 fi ;; refs/tags/*,delete) # delete tag if [ "$allowdeletetag" != "true" ]; then echo "*** Deleting a tag is not allowed in this repository" >&2 exit 1 fi ;; refs/tags/*,tag) # annotated tag if [ "$allowmodifytag" != "true" ] && git rev-parse $refname > /dev/null 2>&1 then echo "*** Tag '$refname' already exists." >&2 echo "*** Modifying a tag is not allowed in this repository." >&2 exit 1 fi ;; refs/heads/*,commit) # branch if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then echo "*** Creating a branch is not allowed in this repository" >&2 exit 1 fi ;; refs/heads/*,delete) # delete branch if [ "$allowdeletebranch" != "true" ]; then echo "*** Deleting a branch is not allowed in this repository" >&2 exit 1 fi ;; refs/remotes/*,commit) # tracking branch ;; refs/remotes/*,delete) # delete tracking branch if [ "$allowdeletebranch" != "true" ]; then echo "*** Deleting a tracking branch is not allowed in this repository" >&2 exit 1 fi ;; *) # Anything else (is there anything else?) echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2 exit 1 ;; esac # --- Finished exit 0 ================================================ FILE: .git/info/exclude ================================================ # git ls-files --others --exclude-from=.git/info/exclude # Lines that start with '#' are comments. # For a project mostly in C, the following would be a good set of # exclude patterns (uncomment them if you want to use them): # *.[oa] # *~ ================================================ FILE: .git/logs/HEAD ================================================ 0000000000000000000000000000000000000000 1963e57bebfde420baeecbb2c6848a2382488413 appuser 1778656786 +0000 clone: from https://github.com/ponty/framebuffer-vncserver ================================================ FILE: .git/logs/refs/heads/master ================================================ 0000000000000000000000000000000000000000 1963e57bebfde420baeecbb2c6848a2382488413 appuser 1778656786 +0000 clone: from https://github.com/ponty/framebuffer-vncserver ================================================ FILE: .git/logs/refs/remotes/origin/HEAD ================================================ 0000000000000000000000000000000000000000 1963e57bebfde420baeecbb2c6848a2382488413 appuser 1778656786 +0000 clone: from https://github.com/ponty/framebuffer-vncserver ================================================ FILE: .git/objects/pack/pack-bef8852657c06b106e38622c43f30aebfe12ac48.promisor ================================================ 1963e57bebfde420baeecbb2c6848a2382488413 refs/heads/master ================================================ FILE: .git/packed-refs ================================================ # pack-refs with: peeled fully-peeled sorted 1963e57bebfde420baeecbb2c6848a2382488413 refs/remotes/origin/master ================================================ FILE: .git/refs/heads/master ================================================ 1963e57bebfde420baeecbb2c6848a2382488413 ================================================ FILE: .git/refs/remotes/origin/HEAD ================================================ ref: refs/remotes/origin/master ================================================ FILE: .git/shallow ================================================ 1963e57bebfde420baeecbb2c6848a2382488413 ================================================ FILE: .github/workflows/main.yml ================================================ # For more information see: # https://docs.github.com/en/actions/automating-builds-and-tests/ name: build on: schedule: # * is a special character in YAML so you have to quote this string - cron: '30 5 1 */3 *' push: pull_request: jobs: build: runs-on: ${{ matrix.os }} strategy: fail-fast: false matrix: os: - "ubuntu-20.04" - "ubuntu-22.04" steps: - uses: actions/checkout@v3 - name: Install dependencies run: | sudo apt-get update sudo apt-get install -y libvncserver-dev cmake qt5-qmake qtbase5-dev - name: Test CMake build run: | mkdir -p build && cd build && cmake .. && make && cd .. - name: Test QT build run: | mkdir -p buildqt && cd buildqt && qmake ../framebuffer-vncserver.pro && make && cd .. ================================================ FILE: .gitignore ================================================ # C++ objects and libs *.slo *.lo *.o *.a *.la *.lai *.so *.dll *.dylib # Qt-es /.qmake.cache /.qmake.stash *.pro.user *.pro.user.* *.moc moc_*.cpp qrc_*.cpp ui_*.h #Makefile* *-build-* # QtCreator *.autosave #QtCtreator Qml *.qmlproject.user *.qmlproject.user.* .* !.git* !.travis* build/ *.log ================================================ FILE: .travis.yml.bak ================================================ language: c install: - sudo apt-get update -qq - sudo apt-get install -y libvncserver-dev cmake qt4-qmake script: - mkdir -p build1 && cd build1 && cmake .. && make && cd .. - mkdir -p build2 && cd build2 && qmake ../framebuffer-vncserver.pro && make && cd .. ================================================ FILE: CMakeLists.txt ================================================ PROJECT(framebuffer-vncserver) CMAKE_MINIMUM_REQUIRED(VERSION 2.6) FILE(GLOB SOURCES src/*.c) ADD_EXECUTABLE(framebuffer-vncserver ${SOURCES}) INSTALL(TARGETS framebuffer-vncserver RUNTIME DESTINATION bin) # LIBVNC find_library(LIBVNC NAMES libvncserver vncserver) target_link_libraries(framebuffer-vncserver ${LIBVNC}) MESSAGE( STATUS "LIBVNC: " ${LIBVNC} ) ================================================ FILE: Dockerfile ================================================ FROM alpine as builder LABEL maintainer="ek5.chimenti@gmail.com" ADD . /target/ WORKDIR /target RUN apk fetch RUN apk add libvncserver-dev RUN apk add gcc g++ cmake make linux-headers RUN mkdir -p build WORKDIR /target/build RUN cmake .. RUN make FROM alpine COPY --from=builder /target/build/framebuffer-vncserver /usr/bin RUN apk update && apk add libvncserver ENTRYPOINT [ "framebuffer-vncserver" ] ================================================ FILE: LICENSE ================================================ GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. 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You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. 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If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. {description} Copyright (C) {year} {fullname} This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. {signature of Ty Coon}, 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. ================================================ FILE: README.md ================================================ # framebuffer-vncserver VNC server for Linux framebuffer devices. ![workflow](https://github.com/ponty/framebuffer-vncserver/actions/workflows/main.yml/badge.svg) The goal is to access remote embedded Linux systems without X. Implemented features: remote display, touchscreen, keyboard, rotation Not implemented: file transfer, .. Working configurations: without rotation: - [x] 1 bit/pixel - [x] 8 bit/pixel - [x] 16 bit/pixel - [x] 24 bit/pixel - [x] 32 bit/pixel with rotation: - [ ] 1 bit/pixel - [ ] 8 bit/pixel - [x] 16 bit/pixel - [ ] 24 bit/pixel - [ ] 32 bit/pixel The code is based on a LibVNC example for Android: https://github.com/LibVNC/libvncserver/blob/master/examples/androidvncserver.c ### build Dependency: sudo apt-get install libvncserver-dev There are 2 options: CMake or qmake Using cmake: mkdir -p build && cd build cmake .. make Using qmake: mkdir -p buildqt && cd buildqt qmake ../framebuffer-vncserver.pro make ### command-line help ./framebuffer-vncserver [-f device] [-p port] [-t touchscreen] [-m mouse] [-k keyboard] [-r rotation] [-R touchscreen rotation] [-F FPS] [-v] [-h] -p port: VNC port, default is 5900 -f device: framebuffer device node, default is /dev/fb0 -k device: keyboard device node (example: /dev/input/event0) -t device: touchscreen device node (example:/dev/input/event2) -m device: mouse device node (example:/dev/input/event2) -r degrees: framebuffer rotation, default is 0 -R degrees: touchscreen rotation, default is same as framebuffer rotation -F FPS: Maximum target FPS, default is 10 -v: verbose -h: print this help ## Run on startup as service To run at startup as a service using systemd, edit the file `fbvnc.service` make sure the path and command line arguments are correct and then run: ```shell sudo cp fbvnc.service /etc/systemd/system/ sudo systemctl enable fbvnc.service sudo systemctl start fbvnc.service ``` ## Vfb test Linux Virtual Frame Buffer kernel object (vfb.ko) is used for this test. https://cateee.net/lkddb/web-lkddb/FB_VIRTUAL.html Local computer: # install sudo apt install vagrant virtualbox xtightvncviewer # after framebuffer-vncserver start vncviewer localhost vagrant up vagrant ssh Inside vagrant box: sudo su cd /home/vagrant/build/ # build framebuffer-vncserver make # set resolution, color depth fbset -g 640 480 640 480 16 # restart framebuffer-vncserver killall framebuffer-vncserver;./framebuffer-vncserver -t /dev/input/ms -k /dev/input/kbd & # set test pattern or .. fb-test # draw random rectangles or .. rect # display a GUI or ... qmlscene -platform linuxfb -plugin evdevmouse:/dev/input/ms:abs -plugin evdevkeyboard:/dev/input/kbd:grab=1 ### Automatic test This generates patterns with different resolutions and color depths (on local computer): python3 -m pip install fabric vncdotool python-vagrant entrypoint2 python3 vfb.py | rotation | color | fbtest | qmlscene | gradient | | -------: | ----: | --------------------------------------- | ----------------------------------------- | ----------------------------------------- | | 0 | 1 | | ![](/img/qmlscene_160x120_c1_rot0.png) | | | 0 | 8 | ![](/img/fbtest_160x120_c8_rot0.png) | | ![](/img/gradient_160x120_c8_rot0.png) | | 0 | 16 | ![](/img/fbtest_160x120_c16_rot0.png) | ![](/img/qmlscene_160x120_c16_rot0.png) | ![](/img/gradient_160x120_c16_rot0.png) | | 0 | 24 | ![](/img/fbtest_160x120_c24_rot0.png) | ![](/img/qmlscene_160x120_c24_rot0.png) | ![](/img/gradient_160x120_c24_rot0.png) | | 0 | 32 | ![](/img/fbtest_160x120_c32_rot0.png) | ![](/img/qmlscene_160x120_c32_rot0.png) | ![](/img/gradient_160x120_c32_rot0.png) | | 90 | 16 | ![](/img/fbtest_160x120_c16_rot90.png) | ![](/img/qmlscene_160x120_c16_rot90.png) | ![](/img/gradient_160x120_c16_rot90.png) | | 180 | 16 | ![](/img/fbtest_160x120_c16_rot180.png) | ![](/img/qmlscene_160x120_c16_rot180.png) | ![](/img/gradient_160x120_c16_rot180.png) | | 270 | 16 | ![](/img/fbtest_160x120_c16_rot270.png) | ![](/img/qmlscene_160x120_c16_rot270.png) | ![](/img/gradient_160x120_c16_rot270.png) | ## Testing single-touch $ (evtest /dev/input/event0 &) ;./framebuffer-vncserver -t /dev/input/event0 -v ... Initializing touch device /dev/input/event0 ... x:(0 4095) y:(0 4095) ... Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 330 (BTN_TOUCH) Event type 3 (EV_ABS) Event code 0 (ABS_X) Value 1970 Min 0 Max 4095 Event code 1 (ABS_Y) Value 1745 Min 0 Max 4095 Event code 24 (ABS_PRESSURE) Value 0 Min 0 Max 255 ... Got ptrevent: 0001 (x=186, y=570) Event: time 1580221917.655639, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1 Event: time 1580221917.655639, type 3 (EV_ABS), code 0 (ABS_X), value 1586 Event: time 1580221917.655639, type 3 (EV_ABS), code 1 (ABS_Y), value 2733 Event: time 1580221917.655639, -------------- SYN_REPORT ------------ injectTouchEvent (screen(186,570) -> touch(1586,2733), mouse=1) ... Got ptrevent: 0000 (x=186, y=570) Event: time 1580221918.516897, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0 Event: time 1580221918.516897, -------------- SYN_REPORT ------------ injectTouchEvent (screen(186,570) -> touch(1586,2733), mouse=0) ## Testing multi-touch $ (evtest /dev/input/event2 &) ;./framebuffer-vncserver -t /dev/input/event2 -v ... Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 330 (BTN_TOUCH) Event type 3 (EV_ABS) Event code 0 (ABS_X) Value 245 Min 0 Max 480 Event code 1 (ABS_Y) Value 485 Min 0 Max 854 Event code 47 (ABS_MT_SLOT) Value 4 Min 0 Max 4 Event code 48 (ABS_MT_TOUCH_MAJOR) Value 0 Min 0 Max 255 Event code 50 (ABS_MT_WIDTH_MAJOR) Value 0 Min 0 Max 255 Event code 53 (ABS_MT_POSITION_X) Value 0 Min 0 Max 480 Event code 54 (ABS_MT_POSITION_Y) Value 0 Min 0 Max 854 Event code 57 (ABS_MT_TRACKING_ID) Value 0 Min 0 Max 65535 ... Initializing touch device /dev/input/event2 ... x:(0 480) y:(0 854) ... Got ptrevent: 0001 (x=237, y=528) Event: time 1580221680.870277, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 0 Event: time 1580221680.870277, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1 Event: time 1580221680.870277, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 237 Event: time 1580221680.870277, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 528 Event: time 1580221680.870277, type 3 (EV_ABS), code 0 (ABS_X), value 237 Event: time 1580221680.870277, type 3 (EV_ABS), code 1 (ABS_Y), value 528 Event: time 1580221680.870277, -------------- SYN_REPORT ------------ injectTouchEvent (screen(237,528) -> touch(237,528), mouse=1) ... Got ptrevent: 0000 (x=237, y=528) Event: time 1580221681.190716, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value -1 Event: time 1580221681.190716, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0 Event: time 1580221681.190716, -------------- SYN_REPORT ------------ injectTouchEvent (screen(237,528) -> touch(237,528), mouse=0) ================================================ FILE: Vagrantfile ================================================ Vagrant.configure(2) do |config| config.vm.box = "ubuntu/jammy64" config.vm.network "forwarded_port", guest: 5900, host: 5900 config.vm.provider "virtualbox" do |vb| vb.name = "framebuffer-vncserver.22.04" # vb.gui = true # vb.memory = "1024" # https://bugs.launchpad.net/cloud-images/+bug/1829625 # vb.customize ["modifyvm", :id, "--uart1", "0x3F8", "4"] # vb.customize ["modifyvm", :id, "--uartmode1", "file", "./ttyS0.log"] end # disable vbox fb config.vm.provision "shell", inline: "echo 'blacklist vboxvideo' >> /etc/modprobe.d/vbox.conf;sudo update-initramfs -u" # vagrant plugin install vagrant-reload config.vm.provision :reload config.vm.provision "shell", path: "vagrant.sh" config.ssh.extra_args = ["-t", "cd /vagrant;sudo su"] end ================================================ FILE: Vagrantfile.20.04.rb ================================================ Vagrant.configure(2) do |config| config.vm.box = "ubuntu/focal64" config.vm.network "forwarded_port", guest: 5900, host: 5900 config.vm.provider "virtualbox" do |vb| vb.name = "framebuffer-vncserver.20.04" # vb.gui = true # vb.memory = "1024" # https://bugs.launchpad.net/cloud-images/+bug/1829625 # vb.customize ["modifyvm", :id, "--uart1", "0x3F8", "4"] # vb.customize ["modifyvm", :id, "--uartmode1", "file", "./ttyS0.log"] end config.vm.provision "shell", path: "vagrant.sh" config.ssh.extra_args = ["-t", "cd /vagrant;sudo su"] end # export VAGRANT_VAGRANTFILE=Vagrantfile.20.04.rb;export VAGRANT_DOTFILE_PATH=.vagrant_${VAGRANT_VAGRANTFILE} ================================================ FILE: deployment.pri ================================================ # This file was generated by an application wizard of Qt Creator. # The code below handles deployment to Android and Maemo, aswell as copying # of the application data to shadow build directories on desktop. # It is recommended not to modify this file, since newer versions of Qt Creator # may offer an updated version of it. defineTest(qtcAddDeployment) { for(deploymentfolder, DEPLOYMENTFOLDERS) { item = item$${deploymentfolder} greaterThan(QT_MAJOR_VERSION, 4) { itemsources = $${item}.files } else { itemsources = $${item}.sources } $$itemsources = $$eval($${deploymentfolder}.source) itempath = $${item}.path $$itempath= $$eval($${deploymentfolder}.target) export($$itemsources) export($$itempath) DEPLOYMENT += $$item } MAINPROFILEPWD = $$PWD android-no-sdk { for(deploymentfolder, DEPLOYMENTFOLDERS) { item = item$${deploymentfolder} itemfiles = $${item}.files $$itemfiles = $$eval($${deploymentfolder}.source) itempath = $${item}.path $$itempath = /data/user/qt/$$eval($${deploymentfolder}.target) export($$itemfiles) export($$itempath) INSTALLS += $$item } target.path = /data/user/qt export(target.path) INSTALLS += target } else:android { for(deploymentfolder, DEPLOYMENTFOLDERS) { item = item$${deploymentfolder} itemfiles = $${item}.files $$itemfiles = $$eval($${deploymentfolder}.source) itempath = $${item}.path $$itempath = /assets/$$eval($${deploymentfolder}.target) export($$itemfiles) export($$itempath) INSTALLS += $$item } x86 { target.path = /libs/x86 } else: armeabi-v7a { target.path = /libs/armeabi-v7a } else { target.path = /libs/armeabi } export(target.path) INSTALLS += target } else:win32 { copyCommand = for(deploymentfolder, DEPLOYMENTFOLDERS) { source = $$MAINPROFILEPWD/$$eval($${deploymentfolder}.source) source = $$replace(source, /, \\) sourcePathSegments = $$split(source, \\) target = $$OUT_PWD/$$eval($${deploymentfolder}.target)/$$last(sourcePathSegments) target = $$replace(target, /, \\) target ~= s,\\\\\\.?\\\\,\\, !isEqual(source,$$target) { !isEmpty(copyCommand):copyCommand += && isEqual(QMAKE_DIR_SEP, \\) { copyCommand += $(COPY_DIR) \"$$source\" \"$$target\" } else { source = $$replace(source, \\\\, /) target = $$OUT_PWD/$$eval($${deploymentfolder}.target) target = $$replace(target, \\\\, /) copyCommand += test -d \"$$target\" || mkdir -p \"$$target\" && cp -r \"$$source\" \"$$target\" } } } !isEmpty(copyCommand) { copyCommand = @echo Copying application data... && $$copyCommand copydeploymentfolders.commands = $$copyCommand first.depends = $(first) copydeploymentfolders export(first.depends) export(copydeploymentfolders.commands) QMAKE_EXTRA_TARGETS += first copydeploymentfolders } } else:ios { copyCommand = for(deploymentfolder, DEPLOYMENTFOLDERS) { source = $$MAINPROFILEPWD/$$eval($${deploymentfolder}.source) source = $$replace(source, \\\\, /) target = $CODESIGNING_FOLDER_PATH/$$eval($${deploymentfolder}.target) target = $$replace(target, \\\\, /) sourcePathSegments = $$split(source, /) targetFullPath = $$target/$$last(sourcePathSegments) targetFullPath ~= s,/\\.?/,/, !isEqual(source,$$targetFullPath) { !isEmpty(copyCommand):copyCommand += && copyCommand += mkdir -p \"$$target\" copyCommand += && cp -r \"$$source\" \"$$target\" } } !isEmpty(copyCommand) { copyCommand = echo Copying application data... && $$copyCommand !isEmpty(QMAKE_POST_LINK): QMAKE_POST_LINK += ";" QMAKE_POST_LINK += "$$copyCommand" export(QMAKE_POST_LINK) } } else:unix { maemo5 { desktopfile.files = $${TARGET}.desktop desktopfile.path = /usr/share/applications/hildon icon.files = $${TARGET}64.png icon.path = /usr/share/icons/hicolor/64x64/apps } else:!isEmpty(MEEGO_VERSION_MAJOR) { desktopfile.files = $${TARGET}_harmattan.desktop desktopfile.path = /usr/share/applications icon.files = $${TARGET}80.png icon.path = /usr/share/icons/hicolor/80x80/apps } else { # Assumed to be a Desktop Unix copyCommand = for(deploymentfolder, DEPLOYMENTFOLDERS) { source = $$MAINPROFILEPWD/$$eval($${deploymentfolder}.source) source = $$replace(source, \\\\, /) macx { target = $$OUT_PWD/$${TARGET}.app/Contents/Resources/$$eval($${deploymentfolder}.target) } else { target = $$OUT_PWD/$$eval($${deploymentfolder}.target) } target = $$replace(target, \\\\, /) sourcePathSegments = $$split(source, /) targetFullPath = $$target/$$last(sourcePathSegments) targetFullPath ~= s,/\\.?/,/, !isEqual(source,$$targetFullPath) { !isEmpty(copyCommand):copyCommand += && copyCommand += $(MKDIR) \"$$target\" copyCommand += && $(COPY_DIR) \"$$source\" \"$$target\" } } !isEmpty(copyCommand) { copyCommand = @echo Copying application data... && $$copyCommand copydeploymentfolders.commands = $$copyCommand first.depends = $(first) copydeploymentfolders export(first.depends) export(copydeploymentfolders.commands) QMAKE_EXTRA_TARGETS += first copydeploymentfolders } } !isEmpty(target.path) { installPrefix = $${target.path} } else { installPrefix = /opt/$${TARGET} } for(deploymentfolder, DEPLOYMENTFOLDERS) { item = item$${deploymentfolder} itemfiles = $${item}.files $$itemfiles = $$eval($${deploymentfolder}.source) itempath = $${item}.path $$itempath = $${installPrefix}/$$eval($${deploymentfolder}.target) export($$itemfiles) export($$itempath) INSTALLS += $$item } !isEmpty(desktopfile.path) { export(icon.files) export(icon.path) export(desktopfile.files) export(desktopfile.path) INSTALLS += icon desktopfile } isEmpty(target.path) { target.path = $${installPrefix}/bin export(target.path) } INSTALLS += target } export (ICON) export (INSTALLS) export (DEPLOYMENT) export (LIBS) export (QMAKE_EXTRA_TARGETS) } ================================================ FILE: fbvnc.service ================================================ [Unit] Description=Framebuffer VNC Server for 3.5" TFT Display [Service] Type=simple PIDFile=/var/run/fbvnc.pid ExecStart=/home/pi/framebuffer-vncserver/build/framebuffer-vncserver -f /dev/fb1 -p 5901 -t /dev/input/touchscreen [Install] WantedBy=multi-user.target ================================================ FILE: format-code.sh ================================================ #!/bin/bash set -e autoflake -i -r --remove-all-unused-imports . autoflake -i -r --remove-unused-variables . isort . black . ================================================ FILE: framebuffer-vncserver.pro ================================================ TEMPLATE = app CONFIG += console CONFIG -= app_bundle CONFIG -= qt SOURCES += src/framebuffer-vncserver.c SOURCES += src/keyboard.c SOURCES += src/touch.c SOURCES += src/mouse.c include(deployment.pri) qtcAddDeployment() LIBS += -lvncserver DISTFILES += \ README.md ================================================ FILE: gradient.py ================================================ from entrypoint2 import entrypoint # last color channel chan = { 8: 0x07, 16: 0x1F, 24: 0xFF, 32: 0xFF, } @entrypoint def gradient(width=320, height=240, colorbit=32, fileout="/dev/fb0"): """colorbit: 8/16/24/32""" assert colorbit in chan with open(fileout, "wb") as f: for y in range(0, height): for x in range(0, width): c = int(chan[colorbit] * (x + y) / (width + height)) f.write((c).to_bytes(int(colorbit / 8), byteorder="little")) ================================================ FILE: src/framebuffer-vncserver.c ================================================ /* * $Id$ * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2, or (at your option) any * later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * This project is an adaptation of the original fbvncserver for the iPAQ * and Zaurus. */ #include #include #include #include #include #include #include #include /* For makedev() */ #include #include #include #include #include /* libvncserver */ #include "rfb/rfb.h" #include "rfb/keysym.h" #include "touch.h" #include "mouse.h" #include "keyboard.h" #include "logging.h" /*****************************************************************************/ #define LOG_FPS #define BITS_PER_SAMPLE 5 #define SAMPLES_PER_PIXEL 2 // #define CHANNELS_PER_PIXEL 4 static char fb_device[256] = "/dev/fb0"; static char touch_device[256] = ""; static char kbd_device[256] = ""; static char mouse_device[256] = ""; static struct fb_var_screeninfo var_scrinfo; static struct fb_fix_screeninfo fix_scrinfo; static int fbfd = -1; static unsigned short int *fbmmap = MAP_FAILED; static unsigned short int *vncbuf; static unsigned short int *fbbuf; static int vnc_port = 5900; static int vnc_rotate = 0; static int touch_rotate = -1; static int target_fps = 10; static rfbScreenInfoPtr server; static size_t bytespp; static unsigned int bits_per_pixel; static unsigned int frame_size; static unsigned int fb_xres; static unsigned int fb_yres; int verbose = 0; #define UNUSED(x) (void)(x) /* No idea, just copied from fbvncserver as part of the frame differerencing * algorithm. I will probably be later rewriting all of this. */ static struct varblock_t { int min_i; int min_j; int max_i; int max_j; int r_offset; int g_offset; int b_offset; int rfb_xres; int rfb_maxy; } varblock; /*****************************************************************************/ static void init_fb(void) { size_t pixels; if ((fbfd = open(fb_device, O_RDONLY)) == -1) { error_print("cannot open fb device %s\n", fb_device); exit(EXIT_FAILURE); } if (ioctl(fbfd, FBIOGET_VSCREENINFO, &var_scrinfo) != 0) { error_print("ioctl error\n"); exit(EXIT_FAILURE); } if (ioctl(fbfd, FBIOGET_FSCREENINFO, &fix_scrinfo) != 0) { error_print("ioctl error\n"); exit(EXIT_FAILURE); } /* * Get actual resolution of the framebufffer, which is not always the same as the screen resolution. * This prevents the screen from 'smearing' on 1366 x 768 displays */ fb_xres = fix_scrinfo.line_length / (var_scrinfo.bits_per_pixel / 8.0); fb_yres = var_scrinfo.yres; pixels = fb_xres * fb_yres; bytespp = var_scrinfo.bits_per_pixel / 8; bits_per_pixel = var_scrinfo.bits_per_pixel; frame_size = pixels * bits_per_pixel / 8; info_print(" xres=%d, yres=%d, xresv=%d, yresv=%d, xoffs=%d, yoffs=%d, bpp=%d\n", (int)fb_xres, (int)fb_yres, (int)var_scrinfo.xres_virtual, (int)var_scrinfo.yres_virtual, (int)var_scrinfo.xoffset, (int)var_scrinfo.yoffset, (int)var_scrinfo.bits_per_pixel); info_print(" offset:length red=%d:%d green=%d:%d blue=%d:%d \n", (int)var_scrinfo.red.offset, (int)var_scrinfo.red.length, (int)var_scrinfo.green.offset, (int)var_scrinfo.green.length, (int)var_scrinfo.blue.offset, (int)var_scrinfo.blue.length); fbmmap = mmap(NULL, frame_size, PROT_READ, MAP_SHARED, fbfd, 0); if (fbmmap == MAP_FAILED) { error_print("mmap failed\n"); exit(EXIT_FAILURE); } } static void cleanup_fb(void) { if (fbfd != -1) { close(fbfd); fbfd = -1; } } static void keyevent(rfbBool down, rfbKeySym key, rfbClientPtr cl) { int scancode; debug_print("Got keysym: %04x (down=%d)\n", (unsigned int)key, (int)down); if ((scancode = keysym2scancode(key, cl))) { injectKeyEvent(scancode, down); } } static void ptrevent_touch(int buttonMask, int x, int y, rfbClientPtr cl) { UNUSED(cl); /* Indicates either pointer movement or a pointer button press or release. The pointer is now at (x-position, y-position), and the current state of buttons 1 to 8 are represented by bits 0 to 7 of button-mask respectively, 0 meaning up, 1 meaning down (pressed). On a conventional mouse, buttons 1, 2 and 3 correspond to the left, middle and right buttons on the mouse. On a wheel mouse, each step of the wheel upwards is represented by a press and release of button 4, and each step downwards is represented by a press and release of button 5. From: http://www.vislab.usyd.edu.au/blogs/index.php/2009/05/22/an-headerless-indexed-protocol-for-input-1?blog=61 */ debug_print("Got ptrevent: %04x (x=%d, y=%d)\n", buttonMask, x, y); // Simulate left mouse event as touch event static int pressed = 0; if (buttonMask & 1) { if (pressed == 1) { injectTouchEvent(MouseDrag, x, y, &var_scrinfo); } else { pressed = 1; injectTouchEvent(MousePress, x, y, &var_scrinfo); } } if (buttonMask == 0) { if (pressed == 1) { pressed = 0; injectTouchEvent(MouseRelease, x, y, &var_scrinfo); } } } static void ptrevent_mouse(int buttonMask, int x, int y, rfbClientPtr cl) { UNUSED(cl); /* Indicates either pointer movement or a pointer button press or release. The pointer is now at (x-position, y-position), and the current state of buttons 1 to 8 are represented by bits 0 to 7 of button-mask respectively, 0 meaning up, 1 meaning down (pressed). On a conventional mouse, buttons 1, 2 and 3 correspond to the left, middle and right buttons on the mouse. On a wheel mouse, each step of the wheel upwards is represented by a press and release of button 4, and each step downwards is represented by a press and release of button 5. From: http://www.vislab.usyd.edu.au/blogs/index.php/2009/05/22/an-headerless-indexed-protocol-for-input-1?blog=61 */ debug_print("Got mouse: %04x (x=%d, y=%d)\n", buttonMask, x, y); // Simulate left mouse event as touch event injectMouseEvent(&var_scrinfo, buttonMask, x, y); } /*****************************************************************************/ static void init_fb_server(int argc, char **argv, rfbBool enable_touch, rfbBool enable_mouse) { info_print("Initializing server...\n"); int rbytespp = bits_per_pixel == 1 ? 1 : bytespp; int rframe_size = bits_per_pixel == 1 ? frame_size * 8 : frame_size; /* Allocate the VNC server buffer to be managed (not manipulated) by * libvncserver. */ vncbuf = malloc(rframe_size); assert(vncbuf != NULL); memset(vncbuf, bits_per_pixel == 1 ? 0xFF : 0x00, rframe_size); /* Allocate the comparison buffer for detecting drawing updates from frame * to frame. */ fbbuf = calloc(frame_size, 1); assert(fbbuf != NULL); /* TODO: This assumes var_scrinfo.bits_per_pixel is 16. */ server = rfbGetScreen(&argc, argv, fb_xres, fb_yres, BITS_PER_SAMPLE, SAMPLES_PER_PIXEL, rbytespp); assert(server != NULL); server->desktopName = "framebuffer"; server->frameBuffer = (char *)vncbuf; server->alwaysShared = TRUE; server->httpDir = NULL; server->port = vnc_port; server->kbdAddEvent = keyevent; if (enable_touch) { server->ptrAddEvent = ptrevent_touch; } if (enable_mouse) { server->ptrAddEvent = ptrevent_mouse; } rfbInitServer(server); /* Mark as dirty since we haven't sent any updates at all yet. */ rfbMarkRectAsModified(server, 0, 0, fb_xres, fb_yres); /* No idea. */ varblock.r_offset = var_scrinfo.red.offset + var_scrinfo.red.length - BITS_PER_SAMPLE; varblock.g_offset = var_scrinfo.green.offset + var_scrinfo.green.length - BITS_PER_SAMPLE; varblock.b_offset = var_scrinfo.blue.offset + var_scrinfo.blue.length - BITS_PER_SAMPLE; varblock.rfb_xres = fb_yres; varblock.rfb_maxy = fb_xres - 1; } // sec #define LOG_TIME 5 int timeToLogFPS() { static struct timeval now = {0, 0}, then = {0, 0}; double elapsed, dnow, dthen; gettimeofday(&now, NULL); dnow = now.tv_sec + (now.tv_usec / 1000000.0); dthen = then.tv_sec + (then.tv_usec / 1000000.0); elapsed = dnow - dthen; if (elapsed > LOG_TIME) memcpy((char *)&then, (char *)&now, sizeof(struct timeval)); return elapsed > LOG_TIME; } /*****************************************************************************/ //#define COLOR_MASK 0x1f001f #define COLOR_MASK (((1 << BITS_PER_SAMPLE) << 1) - 1) #define PIXEL_FB_TO_RFB(p, r_offset, g_offset, b_offset) \ ((p >> r_offset) & COLOR_MASK) | (((p >> g_offset) & COLOR_MASK) << BITS_PER_SAMPLE) | (((p >> b_offset) & COLOR_MASK) << (2 * BITS_PER_SAMPLE)) static void update_screen(void) { #ifdef LOG_FPS if (verbose) { static int frames = 0; frames++; if (timeToLogFPS()) { double fps = frames / LOG_TIME; info_print(" fps: %f\n", fps); frames = 0; } } #endif varblock.min_i = varblock.min_j = 9999; varblock.max_i = varblock.max_j = -1; if (vnc_rotate == 0 && bits_per_pixel == 24) { uint8_t *f = (uint8_t *)fbmmap; /* -> framebuffer */ uint8_t *c = (uint8_t *)fbbuf; /* -> compare framebuffer */ uint8_t *r = (uint8_t *)vncbuf; /* -> remote framebuffer */ if (memcmp(fbmmap, fbbuf, frame_size) != 0) { int y; for (y = 0; y < (int)fb_yres; y++) { int x; for (x = 0; x < (int)fb_xres; x++) { uint32_t pixel = *(uint32_t *)f & 0x00FFFFFF; uint32_t comp = *(uint32_t *)c & 0x00FFFFFF; if (pixel != comp) { *(c + 0) = *(f + 0); *(c + 1) = *(f + 1); *(c + 2) = *(f + 2); uint32_t rem = PIXEL_FB_TO_RFB(pixel, varblock.r_offset, varblock.g_offset, varblock.b_offset); *(r + 0) = (uint8_t)((rem >> 0) & 0xFF); *(r + 1) = (uint8_t)((rem >> 8) & 0xFF); *(r + 2) = (uint8_t)((rem >> 16) & 0xFF); if (x < varblock.min_i) varblock.min_i = x; else if (x > varblock.max_i) varblock.max_i = x; if (y > varblock.max_j) varblock.max_j = y; else if (y < varblock.min_j) varblock.min_j = y; } f += bytespp; c += bytespp; r += bytespp; } } } } else if (vnc_rotate == 0 && bits_per_pixel == 1) { uint8_t *f = (uint8_t *)fbmmap; /* -> framebuffer */ uint8_t *c = (uint8_t *)fbbuf; /* -> compare framebuffer */ uint8_t *r = (uint8_t *)vncbuf; /* -> remote framebuffer */ int xstep = 8; if (memcmp(fbmmap, fbbuf, frame_size) != 0) { int y; for (y = 0; y < (int)fb_yres; y++) { int x; for (x = 0; x < (int)fb_xres; x += xstep) { uint8_t pixels = *f; if (pixels != *c) { *c = pixels; for (int bit = 0; bit < 8; bit++) { // *(r+bit) = ((pixels >> (7-bit)) & 0x1) ? 0xFF : 0x00; *(r + bit) = ((pixels >> (7 - bit)) & 0x1) ? 0x00 : 0xFF; } int x2 = x + xstep - 1; if (x < varblock.min_i) varblock.min_i = x; else if (x2 > varblock.max_i) varblock.max_i = x2; if (y > varblock.max_j) varblock.max_j = y; else if (y < varblock.min_j) varblock.min_j = y; } f += 1; c += 1; r += 8; } } } } else if (vnc_rotate == 0) { uint32_t *f = (uint32_t *)fbmmap; /* -> framebuffer */ uint32_t *c = (uint32_t *)fbbuf; /* -> compare framebuffer */ uint32_t *r = (uint32_t *)vncbuf; /* -> remote framebuffer */ if (memcmp(fbmmap, fbbuf, frame_size) != 0) { // memcpy(fbbuf, fbmmap, size); int xstep = 4 / bytespp; int y; for (y = 0; y < (int)fb_yres; y++) { /* Compare every 1/2/4 pixels at a time */ int x; for (x = 0; x < (int)fb_xres; x += xstep) { uint32_t pixel = *f; if (pixel != *c) { *c = pixel; #if 0 /* XXX: Undo the checkered pattern to test the efficiency * gain using hextile encoding. */ if (pixel == 0x18e320e4 || pixel == 0x20e418e3) pixel = 0x18e318e3; #endif if (bytespp == 4) { *r = PIXEL_FB_TO_RFB(pixel, varblock.r_offset, varblock.g_offset, varblock.b_offset); } else if (bytespp == 2) { *r = PIXEL_FB_TO_RFB(pixel, varblock.r_offset, varblock.g_offset, varblock.b_offset); uint32_t high_pixel = (0xffff0000 & pixel) >> 16; uint32_t high_r = PIXEL_FB_TO_RFB(high_pixel, varblock.r_offset, varblock.g_offset, varblock.b_offset); *r |= (0xffff & high_r) << 16; } else if (bytespp == 1) { *r = pixel; } else { // TODO } int x2 = x + xstep - 1; if (x < varblock.min_i) varblock.min_i = x; else if (x2 > varblock.max_i) varblock.max_i = x2; if (y > varblock.max_j) varblock.max_j = y; else if (y < varblock.min_j) varblock.min_j = y; } f++; c++; r++; } } } } else if (bits_per_pixel == 16) { uint16_t *f = (uint16_t *)fbmmap; /* -> framebuffer */ uint16_t *c = (uint16_t *)fbbuf; /* -> compare framebuffer */ uint16_t *r = (uint16_t *)vncbuf; /* -> remote framebuffer */ switch (vnc_rotate) { case 0: case 180: server->width = fb_xres; server->height = fb_yres; server->paddedWidthInBytes = fb_xres * bytespp; break; case 90: case 270: server->width = fb_yres; server->height = fb_xres; server->paddedWidthInBytes = fb_yres * bytespp; break; } if (memcmp(fbmmap, fbbuf, frame_size) != 0) { int y; for (y = 0; y < (int)fb_yres; y++) { /* Compare every pixels at a time */ int x; for (x = 0; x < (int)fb_xres; x++) { uint16_t pixel = *f; if (pixel != *c) { int x2, y2; *c = pixel; switch (vnc_rotate) { case 0: x2 = x; y2 = y; break; case 90: x2 = fb_yres - 1 - y; y2 = x; break; case 180: x2 = fb_xres - 1 - x; y2 = fb_yres - 1 - y; break; case 270: x2 = y; y2 = fb_xres - 1 - x; break; default: error_print("rotation is invalid\n"); exit(EXIT_FAILURE); } r[y2 * server->width + x2] = PIXEL_FB_TO_RFB(pixel, varblock.r_offset, varblock.g_offset, varblock.b_offset); if (x2 < varblock.min_i) varblock.min_i = x2; else { if (x2 > varblock.max_i) varblock.max_i = x2; if (y2 > varblock.max_j) varblock.max_j = y2; else if (y2 < varblock.min_j) varblock.min_j = y2; } } f++; c++; } } } } else { error_print("not supported color depth or rotation\n"); exit(EXIT_FAILURE); } if (varblock.min_i < 9999) { if (varblock.max_i < 0) varblock.max_i = varblock.min_i; if (varblock.max_j < 0) varblock.max_j = varblock.min_j; debug_print("Dirty page: %dx%d+%d+%d...\n", (varblock.max_i + 2) - varblock.min_i, (varblock.max_j + 1) - varblock.min_j, varblock.min_i, varblock.min_j); rfbMarkRectAsModified(server, varblock.min_i, varblock.min_j, varblock.max_i + 2, varblock.max_j + 1); } } /*****************************************************************************/ void print_usage(char **argv) { info_print("%s [-f device] [-p port] [-t touchscreen] [-m mouse] [-k keyboard] [-r rotation] [-R touchscreen rotation] [-F FPS] [-v] [-h]\n" "-p port: VNC port, default is 5900\n" "-f device: framebuffer device node, default is /dev/fb0\n" "-k device: keyboard device node (example: /dev/input/event0)\n" "-t device: touchscreen device node (example:/dev/input/event2)\n" "-m device: mouse device node (example:/dev/input/event2)\n" "-r degrees: framebuffer rotation, default is 0\n" "-R degrees: touchscreen rotation, default is same as framebuffer rotation\n" "-F FPS: Maximum target FPS, default is 10\n" "-v: verbose\n" "-h: print this help\n", *argv); } int main(int argc, char **argv) { if (argc > 1) { int i = 1; while (i < argc) { if (*argv[i] == '-') { switch (*(argv[i] + 1)) { case 'h': print_usage(argv); exit(0); break; case 'f': i++; if (argv[i]) strcpy(fb_device, argv[i]); break; case 't': i++; if (argv[i]) strcpy(touch_device, argv[i]); break; case 'm': i++; if (argv[i]) strcpy(mouse_device, argv[i]); break; case 'k': i++; strcpy(kbd_device, argv[i]); break; case 'p': i++; if (argv[i]) vnc_port = atoi(argv[i]); break; case 'r': i++; if (argv[i]) vnc_rotate = atoi(argv[i]); break; case 'R': i++; if (argv[i]) touch_rotate = atoi(argv[i]); break; case 'F': i++; if (argv[i]) target_fps = atoi(argv[i]); break; case 'v': verbose = 1; break; } } i++; } } if (touch_rotate < 0) touch_rotate = vnc_rotate; info_print("Initializing framebuffer device %s...\n", fb_device); init_fb(); if (strlen(kbd_device) > 0) { int ret = init_kbd(kbd_device); if (!ret) info_print("Keyboard device %s not available.\n", kbd_device); } else { info_print("No keyboard device\n"); } rfbBool enable_touch = FALSE; rfbBool enable_mouse = FALSE; if(strlen(touch_device) > 0 && strlen(mouse_device) > 0) { error_print("It can't using both mouse and touch device.\n"); exit(EXIT_FAILURE); } else if (strlen(touch_device) > 0) { // init touch only if there is a touch device defined int ret = init_touch(touch_device, touch_rotate); enable_touch = (ret > 0); } else if(strlen(mouse_device) > 0) { // init touch only if there is a mouse device defined int ret = init_mouse(mouse_device, touch_rotate); enable_mouse = (ret > 0); } else { info_print("No touch or mouse device\n"); } info_print("Initializing VNC server:\n"); info_print(" width: %d\n", (int)fb_xres); info_print(" height: %d\n", (int)fb_yres); info_print(" bpp: %d\n", (int)var_scrinfo.bits_per_pixel); info_print(" port: %d\n", (int)vnc_port); info_print(" rotate: %d\n", (int)vnc_rotate); info_print(" mouse/touch rotate: %d\n", (int)touch_rotate); info_print(" target FPS: %d\n", (int)target_fps); init_fb_server(argc, argv, enable_touch, enable_mouse); /* Implement our own event loop to detect changes in the framebuffer. */ while (1) { rfbRunEventLoop(server, 100 * 1000, TRUE); while (rfbIsActive(server)) { if (server->clientHead != NULL) update_screen(); if (target_fps > 0) usleep(1000 * 1000 / target_fps); else if (server->clientHead == NULL) usleep(100 * 1000); } } info_print("Cleaning up...\n"); cleanup_fb(); cleanup_kbd(); cleanup_touch(); } ================================================ FILE: src/keyboard.c ================================================ #include #include #include #include #include #include #include #include /* For makedev() */ #include #include #include #include #include /* libvncserver */ #include "rfb/rfb.h" #include "rfb/keysym.h" #include "keyboard.h" #include "logging.h" #ifndef input_event_sec #define input_event_sec time.tv_sec #define input_event_usec time.tv_usec #endif //static char KBD_DEVICE[256] = "/dev/input/event1"; static int kbdfd = -1; int init_kbd(const char *kbd_device) { info_print("Initializing keyboard device %s ...\n", kbd_device); if ((kbdfd = open(kbd_device, O_RDWR)) == -1) { error_print("cannot open kbd device %s\n", kbd_device); return 0; } else { return 1; } } void cleanup_kbd() { if (kbdfd != -1) { close(kbdfd); } } void injectKeyEvent(uint16_t code, uint16_t value) { struct input_event ev; memset(&ev, 0, sizeof(ev)); struct timeval time; gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_KEY; ev.code = code; ev.value = value; if (write(kbdfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } // Finally send the SYN gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_SYN; ev.code = 0; ev.value = 0; if (write(kbdfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } debug_print("injectKey (%d, %d)\n", code, value); } int keysym2scancode(rfbKeySym key, rfbClientPtr cl) { int scancode = 0; int code = (int)key; if (code >= '0' && code <= '9') { scancode = (code & 0xF) - 1; if (scancode < 0) scancode += 10; scancode += KEY_1; } else if ((code >= 'A' && code <= 'Z') || (code >= 'a' && code <= 'z')) { static const uint16_t map[] = { KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z}; scancode = map[(code & 0x5F) - 'A']; } else { switch (code) { case XK_space: scancode = KEY_SPACE; break; //20 case XK_exclam: scancode = KEY_1; break; //21 case XK_quotedbl: scancode = KEY_APOSTROPHE; break; //22 case XK_numbersign: scancode = KEY_3; break; //23 case XK_dollar: scancode = KEY_4; break; //24 case XK_percent: scancode = KEY_5; break; //25 case XK_ampersand: scancode = KEY_7; break; //26 case XK_apostrophe: scancode = KEY_APOSTROPHE; break; //27 case XK_parenleft: scancode = KEY_9; break; //28 case XK_parenright: scancode = KEY_0; break; //29 case XK_asterisk: scancode = KEY_8; break; //2a case XK_plus: scancode = KEY_MINUS; break; //2b case XK_comma: scancode = KEY_EQUAL; break; //2c case XK_minus: scancode = KEY_MINUS; break; //2d case XK_period: scancode = KEY_DOT; break; //2e case XK_slash: scancode = KEY_SLASH; break; //2f // XK_0 .. XK_9 // 30 .. 39 case XK_colon: scancode = KEY_SEMICOLON; break; //3a case XK_semicolon: scancode = KEY_SEMICOLON; break; //3b case XK_less: scancode = KEY_COMMA; break; //3c case XK_equal: scancode = KEY_EQUAL; break; //3d case XK_greater: scancode = KEY_DOT; break; //3e case XK_question: scancode = KEY_SLASH; break; //3f case XK_at: scancode = KEY_2; break; //40 // XK_A .. XK_Z // 41 .. 5a case XK_bracketleft: scancode = KEY_LEFTBRACE; break; //5b case XK_backslash: scancode = KEY_BACKSLASH; break; //5c case XK_bracketright: scancode = KEY_RIGHTBRACE; break; //5d case XK_asciicircum: scancode = KEY_6; break; //5e case XK_underscore: scancode = KEY_MINUS; break; //5f case XK_grave: scancode = KEY_GRAVE; break; //60 // XK_a .. XK_z // 61 .. 7a case XK_braceleft: scancode = KEY_LEFTBRACE; break; //7b case XK_bar: scancode = KEY_BACKSLASH; break; //7c case XK_braceright: scancode = KEY_RIGHTBRACE; break; //7d case XK_asciitilde: scancode = KEY_GRAVE; break; //7e case XK_BackSpace: scancode = KEY_BACKSPACE; break; //ff08 case XK_Escape: scancode = KEY_ESC; break; //ff1b case XK_Tab: scancode = KEY_TAB; break; //ff09 case XK_Return: scancode = KEY_ENTER; break; //ff0d case XK_F1: scancode = KEY_F1; break; //ffbe case XK_F2: scancode = KEY_F2; break; //ffbf case XK_F3: scancode = KEY_F3; break; //ffc0 case XK_F4: scancode = KEY_F4; break; //ffc1 case XK_F5: scancode = KEY_F5; break; //ffc2 case XK_F6: scancode = KEY_F6; break; //ffc3 case XK_F7: scancode = KEY_F7; break; //ffc4 case XK_F8: scancode = KEY_F8; break; //ffc5 case XK_F9: scancode = KEY_F9; break; //ffc6 case XK_F10: scancode = KEY_F10; break; //ffc7 //case XK_F11: scancode = KEY_F11; break; //ffc8 case XK_F12: scancode = KEY_F12; break; //ffc9 case XK_F11: rfbShutdownServer(cl->screen, TRUE); break; //ffc8 case XK_Home: scancode = KEY_HOME; break; //ff50 case XK_Left: scancode = KEY_LEFT; break; //ff51 case XK_Up: scancode = KEY_UP; break; //ff52 case XK_Right: scancode = KEY_RIGHT; break; //ff53 case XK_Down: scancode = KEY_DOWN; break; //ff54 case XK_Page_Up: scancode = KEY_PAGEUP; break; //ff55 case XK_Page_Down: scancode = KEY_PAGEDOWN; break; //ff56 case XK_End: scancode = KEY_END; break; //ff57 case XK_Begin: scancode = KEY_HOME; break; //ff58 case XK_Shift_L: scancode = KEY_LEFTSHIFT; break; //ffe1 case XK_Shift_R: scancode = KEY_RIGHTSHIFT; break; //ffe2 case XK_Control_L: scancode = KEY_LEFTCTRL; break; //ffe3 case XK_Control_R: scancode = KEY_RIGHTCTRL; break; //ffe4 case XK_Alt_L: scancode = KEY_LEFTALT; break; //ffe9 case XK_Alt_R: scancode = KEY_RIGHTALT; break; //ffea } } return scancode; } ================================================ FILE: src/keyboard.h ================================================ #pragma once int init_kbd(const char *); void cleanup_kbd(); void injectKeyEvent(uint16_t, uint16_t); int keysym2scancode(rfbKeySym key, rfbClientPtr cl); ================================================ FILE: src/logging.h ================================================ #pragma once #define error_print(...) \ do \ { \ fprintf(stderr, __VA_ARGS__); \ } while (0) #define info_print(...) \ do \ { \ fprintf(stderr, __VA_ARGS__); \ } while (0) extern int verbose; #define debug_print(...) \ do \ { \ if (verbose) \ fprintf(stderr, __VA_ARGS__); \ } while (0) ================================================ FILE: src/mouse.c ================================================ #include #include #include #include #include #include #include #include #include /* For makedev() */ #include #include #include #include #include /* libvncserver */ #include "rfb/rfb.h" #include "mouse.h" #include "logging.h" static int mousefd = -1; static int xmin, xmax; static int ymin, ymax; static int rotate; static int trkg_id = -1; static bool is_wheel_hires = false; #ifndef input_event_sec #define input_event_sec time.tv_sec #define input_event_usec time.tv_usec #endif typedef struct { const char *name; const int value; } map_t; #define CHECK_BIT(var,pos) ((var) & (1<<(pos))) #define MAP(x) { #x,x } #define WHEEL_UP 3 #define WHEEL_DOWN 4 int init_mouse(const char *touch_device, int vnc_rotate) { int size = (REL_CNT/32) + 1; unsigned int evtype_bitmask[size]; /* Clean evtype_bitmask structure */ memset(evtype_bitmask, 0, sizeof(evtype_bitmask)); info_print("Initializing mouse device %s ...\n", touch_device); struct input_absinfo info; if ((mousefd = open(touch_device, O_RDWR)) == -1) { error_print("cannot open mouse device %s\n", touch_device); return 0; } //REL_WHEEL_HI_RES if (ioctl(mousefd, EVIOCGBIT(EV_REL, sizeof(evtype_bitmask)), evtype_bitmask) < 0) { error_print("%s can't get evdev features: %s",touch_device, strerror(errno)); return 0; } #ifdef REL_WHEEL_HI_RES int index = REL_WHEEL_HI_RES/32; int offset = REL_WHEEL_HI_RES - (index*32); if(CHECK_BIT(evtype_bitmask[index],offset)) { info_print("%s has hi res wheel.\n",touch_device); is_wheel_hires = true; } #endif // Get the Range of X and Y if (ioctl(mousefd, EVIOCGABS(ABS_X), &info)) { error_print("cannot get ABS_X info, %s\n", strerror(errno)); return 0; } xmin = info.minimum; xmax = info.maximum; if (ioctl(mousefd, EVIOCGABS(ABS_Y), &info)) { error_print("cannot get ABS_Y, %s\n", strerror(errno)); return 0; } ymin = info.minimum; ymax = info.maximum; rotate = vnc_rotate; info_print(" x:(%d %d) y:(%d %d) \n", xmin, xmax, ymin, ymax); return 1; } void cleanup_mouse() { if (mousefd != -1) { close(mousefd); } } void injectMouseEvent(struct fb_var_screeninfo *scrinfo, int buttonMask, int x, int y) { /* Indicates either pointer movement or a pointer button press or release. The pointer is now at (x-position, y-position), and the current state of buttons 1 to 8 are represented by bits 0 to 7 of button-mask respectively, 0 meaning up, 1 meaning down (pressed). On a conventional mouse, buttons 1, 2 and 3 correspond to the left, middle and right buttons on the mouse. On a wheel mouse, each step of the wheel upwards is represented by a press and release of button 4, and each step downwards is represented by a press and release of button 5. From: http://www.vislab.usyd.edu.au/blogs/index.php/2009/05/22/an-headerless-indexed-protocol-for-input-1?blog=61 */ static map_t mouseButtonMap[] = { MAP(BTN_LEFT), MAP(BTN_MIDDLE), MAP(BTN_RIGHT), }; static int buttonsNumber = sizeof(mouseButtonMap) / sizeof(mouseButtonMap[0]); static int last_buttonMask; static int last_x; static int last_y; static int wheel_tick; int last_wheel_tick = 0; struct input_event ev; int xin = x; int yin = y; switch (rotate) { case 90: x = yin; y = scrinfo->yres - 1 - xin; break; case 180: x = scrinfo->xres - 1 - xin; y = scrinfo->yres - 1 - yin; break; case 270: x = scrinfo->xres - 1 - yin; y = xin; break; } // Calculate the final x and y /* Fake touch screen always reports zero */ //???//if (xmin != 0 && xmax != 0 && ymin != 0 && ymax != 0) { x = xmin + (x * (xmax - xmin)) / (scrinfo->xres); y = ymin + (y * (ymax - ymin)) / (scrinfo->yres); } memset(&ev, 0, sizeof(ev)); struct timeval time; // Send buttons state int buttonsChanged = last_buttonMask ^ buttonMask; if (buttonsChanged) { for (int bi = 0; bi < buttonsNumber; bi++) { int isChanged = CHECK_BIT(buttonsChanged,bi); int isPressed = CHECK_BIT(buttonMask,bi); if(isChanged) { // Then send a BTN_* gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_KEY; ev.code = mouseButtonMap[bi].value; ev.value = isPressed; if (write(mousefd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } info_print("Button %s=%04X\n",mouseButtonMap[bi].name, mouseButtonMap[bi].value); } } if(CHECK_BIT(buttonMask,WHEEL_UP)) { wheel_tick++; } else if(CHECK_BIT(buttonMask,WHEEL_DOWN)) { wheel_tick--; } if(wheel_tick) { // Then send the WHEEL gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_REL; if(is_wheel_hires) { #ifdef REL_WHEEL_HI_RES info_print("HI RES WHEEL %d\n", wheel_tick); ev.code = REL_WHEEL_HI_RES; ev.value = wheel_tick*120; #endif } else { info_print("WHEEL %d\n", wheel_tick); ev.code = REL_WHEEL; ev.value = wheel_tick; } if (write(mousefd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } last_wheel_tick = wheel_tick; wheel_tick = 0; } last_buttonMask = buttonMask; } int dx = x - last_x; int dy = y - last_y; if (dx) { // Then send the X gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_ABS; ev.code = ABS_X; ev.value = x; if (write(mousefd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } last_x = x; } if(dy) { // Then send the Y gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_ABS; ev.code = ABS_Y; ev.value = y; if (write(mousefd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } last_y = y; } // Finally send the SYN gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_SYN; ev.code = 0; ev.value = 0; if (write(mousefd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } debug_print("injectMouseEvent (screen(%d,%d) -> mouse(%d,%d), button=%d, wheel tick=%d)\n", xin, yin, x, y, buttonMask, last_wheel_tick); } ================================================ FILE: src/mouse.h ================================================ #pragma once int init_mouse(const char *touch_device, int vnc_rotate); void cleanup_mouse(); void injectMouseEvent(struct fb_var_screeninfo *scrinfo, int buttonMask, int x, int y); ================================================ FILE: src/touch.c ================================================ #include #include #include #include #include #include #include #include #include /* For makedev() */ #include #include #include #include #include /* libvncserver */ #include "rfb/rfb.h" #include "touch.h" #include "logging.h" //static char TOUCH_DEVICE[256] = "/dev/input/event2"; static int touchfd = -1; static int xmin, xmax; static int ymin, ymax; static int rotate; static int trkg_id = -1; #ifndef input_event_sec #define input_event_sec time.tv_sec #define input_event_usec time.tv_usec #endif int init_touch(const char *touch_device, int vnc_rotate) { info_print("Initializing touch device %s ...\n", touch_device); struct input_absinfo info; if ((touchfd = open(touch_device, O_RDWR)) == -1) { error_print("cannot open touch device %s\n", touch_device); return 0; } // Get the Range of X and Y if (ioctl(touchfd, EVIOCGABS(ABS_X), &info)) { error_print("cannot get ABS_X info, %s\n", strerror(errno)); return 0; } xmin = info.minimum; xmax = info.maximum; if (ioctl(touchfd, EVIOCGABS(ABS_Y), &info)) { error_print("cannot get ABS_Y, %s\n", strerror(errno)); return 0; } ymin = info.minimum; ymax = info.maximum; rotate = vnc_rotate; info_print(" x:(%d %d) y:(%d %d) \n", xmin, xmax, ymin, ymax); return 1; } void cleanup_touch() { if (touchfd != -1) { close(touchfd); } } void injectTouchEvent(enum MouseAction mouseAction, int x, int y, struct fb_var_screeninfo *scrinfo) { struct input_event ev; int xin = x; int yin = y; switch (rotate) { case 90: x = yin; y = scrinfo->yres - 1 - xin; break; case 180: x = scrinfo->xres - 1 - xin; y = scrinfo->yres - 1 - yin; break; case 270: x = scrinfo->xres - 1 - yin; y = xin; break; } // Calculate the final x and y /* Fake touch screen always reports zero */ //???//if (xmin != 0 && xmax != 0 && ymin != 0 && ymax != 0) { x = xmin + (x * (xmax - xmin)) / (scrinfo->xres); y = ymin + (y * (ymax - ymin)) / (scrinfo->yres); } memset(&ev, 0, sizeof(ev)); bool sendPos; bool sendTouch; int trkIdValue; int touchValue; struct timeval time; switch (mouseAction) { case MousePress: sendPos = true; sendTouch = true; trkIdValue = ++trkg_id; touchValue = 1; break; case MouseRelease: sendPos = false; sendTouch = true; trkIdValue = -1; touchValue = 0; break; case MouseDrag: sendPos = true; sendTouch = false; break; default: error_print("invalid mouse action\n"); exit(EXIT_FAILURE); } if (sendTouch) { // Then send a ABS_MT_TRACKING_ID gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.type = EV_ABS; ev.code = ABS_MT_TRACKING_ID; ev.value = trkIdValue; if (write(touchfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } // Then send a BTN_TOUCH gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_KEY; ev.code = BTN_TOUCH; ev.value = touchValue; if (write(touchfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } } if (sendPos) { // Then send a ABS_MT_POSITION_X gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_ABS; ev.code = ABS_MT_POSITION_X; ev.value = x; if (write(touchfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } // Then send a ABS_MT_POSITION_Y gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_ABS; ev.code = ABS_MT_POSITION_Y; ev.value = y; if (write(touchfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } // Then send the X gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_ABS; ev.code = ABS_X; ev.value = x; if (write(touchfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } // Then send the Y gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_ABS; ev.code = ABS_Y; ev.value = y; if (write(touchfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } } // Finally send the SYN gettimeofday(&time, 0); ev.input_event_sec = time.tv_sec; ev.input_event_usec = time.tv_usec; ev.type = EV_SYN; ev.code = 0; ev.value = 0; if (write(touchfd, &ev, sizeof(ev)) < 0) { error_print("write event failed, %s\n", strerror(errno)); } debug_print("injectTouchEvent (screen(%d,%d) -> touch(%d,%d), mouse=%d)\n", xin, yin, x, y, mouseAction); } ================================================ FILE: src/touch.h ================================================ #pragma once enum MouseAction { MouseDrag = -1, MouseRelease, MousePress }; int init_touch(const char *touch_device, int vnc_rotate); void cleanup_touch(); void injectTouchEvent(enum MouseAction mouseAction, int x, int y, struct fb_var_screeninfo *scrinfo); ================================================ FILE: tests/vfb/Makefile ================================================ ifneq ($(KERNELRELEASE),) obj-m := vfb.o else KDIR := /lib/modules/$(shell uname -r)/build PWD := $(shell pwd) all: $(MAKE) -C $(KDIR) M=$(shell pwd) modules install: $(MAKE) -C $(KDIR) M=$(shell pwd) modules_install %: $(MAKE) -C $(KDIR) M=$(shell pwd) $@ endif ================================================ FILE: tests/vfb/README ================================================ https://github.com/torvalds/linux/blob/v4.15/drivers/video/fbdev/vfb.c This is a `virtual' frame buffer device. It operates on a chunk of unswappable kernel memory instead of on the memory of a graphics board. This means you cannot see any output sent to this frame buffer device, while it does consume precious memory. The main use of this frame buffer device is testing and debugging the frame buffer subsystem. Do NOT enable it for normal systems! To protect the innocent, it has to be enabled explicitly at boot time using the kernel option `video=vfb:'. ================================================ FILE: tests/vfb/ins.sh ================================================ #!/bin/sh modinfo vfb.ko sudo modprobe fb_sys_fops sudo modprobe sysfillrect sudo modprobe syscopyarea sudo modprobe sysimgblt sudo insmod vfb.ko vfb_enable=1 videomemorysize=32000000 ================================================ FILE: vagrant.sh ================================================ #!/bin/bash export DEBIAN_FRONTEND=noninteractive sudo update-locale LANG=en_US.UTF-8 LANGUAGE=en.UTF-8 # tools sudo apt-get update sudo apt-get install -y mc htop sudo apt-get install -y evtest sudo apt-get install -y xvfb sudo apt-get install -y python3-pip sudo apt-get install -y libvncserver-dev sudo apt-get install -y build-essential flex bison sudo apt-get install -y cmake sudo apt-get install -y qt5-qmake sudo apt-get install -y qt5-qmake-bin sudo apt-get install -y qtbase5-dev sudo apt-get install -y linux-source libssl-dev libelf-dev sudo apt-get install -y fbset fbcat fbterm fbi sudo apt-get install -y qmlscene sudo apt-get install -y x11vnc sudo pip3 install entrypoint2 # fb-test cd /home/vagrant git clone https://github.com/ponty/fb-test-app.git cd fb-test-app make cp perf /usr/local/bin cp rect /usr/local/bin cp fb-test /usr/local/bin cp fb-string /usr/local/bin # vfb cd /home/vagrant tar xaf /usr/src/linux-source-*.tar.* #cd linux-source-*/ mkdir -p vfb && cd vfb ln -s /home/vagrant/linux-source-*/drivers/video/fbdev/vfb.c vfb.c ln -s /vagrant/tests/vfb/ins.sh ins.sh ln -s /vagrant/tests/vfb/Makefile Makefile make #./ins.sh echo '#!/bin/bash modinfo /home/vagrant/vfb/vfb.ko modprobe fb_sys_fops modprobe sysfillrect modprobe syscopyarea modprobe sysimgblt insmod /home/vagrant/vfb/vfb.ko vfb_enable=1 videomemorysize=32000000 ' >/usr/local/bin/vfbload.sh chmod +x /usr/local/bin/vfbload.sh /usr/local/bin/vfbload.sh >/tmp/vfbload.log 2>&1 echo 'ENV{ID_INPUT_MOUSE}=="?*",ENV{ID_PATH}=="pci-0000:00:04.0", SYMLINK+="input/ms"' >/etc/udev/rules.d/98-input.rules echo 'ENV{ID_INPUT_KEYBOARD}=="?*", SYMLINK+="input/kbd"' >>/etc/udev/rules.d/98-input.rules udevadm control --reload-rules udevadm trigger echo 'SHELL=/bin/sh PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin @reboot root vfbload.sh;sleep 0.1;fbset -g 640 480 640 480 16;/home/vagrant/build/framebuffer-vncserver -t /dev/input/ms -k /dev/input/kbd > /tmp/framebuffer-vncserver.log 2>&1 ' >/etc/cron.d/framebuffer-vncserver # https://askubuntu.com/questions/168279/how-do-i-build-a-single-in-tree-kernel-module # https://askubuntu.com/questions/515407/how-recipe-to-build-only-one-kernel-module #cd /usr/src/ #tar xaf linux-source-*.tar.* #cd linux-source-*/ #make oldconfig # it copies .config to ./ #echo 'CONFIG_FB_VIRTUAL=m' >> .config #make scripts #make drivers/video/fbdev/vfb.ko # cmake build cd /home/vagrant mkdir -p build && cd build cmake /vagrant make # qmake build cd /home/vagrant mkdir -p buildqt && cd buildqt qmake /vagrant make fbset -g 640 480 640 480 16 /home/vagrant/build/framebuffer-vncserver -t /dev/input/ms -k /dev/input/kbd >/tmp/framebuffer-vncserver.log 2>&1 & ================================================ FILE: vfb.py ================================================ import os import sys import threading import time from pathlib import Path from tempfile import TemporaryDirectory from time import sleep import fabric import vagrant from entrypoint2 import entrypoint from PIL import Image, ImageChops from vncdotool import api # pip3 install fabric vncdotool python-vagrant entrypoint2 print(sys.version) def build(conn): # with c.cd("/home/vagrant/build"): # bug in invoke: https://github.com/pyinvoke/invoke/issues/459 conn.sudo('sh -c "cd /home/vagrant/build;cmake /vagrant"') conn.sudo('sh -c "cd /home/vagrant/build;make"') def set_resolution(conn, *res): (w, h, depth) = res conn.sudo("fbset -g %s %s %s %s %s" % (w, h, w, h, depth)) def run_in_background(conn, cmd): # https://docs.fabfile.org/en/1.3.8/faq.html#why-can-t-i-run-programs-in-the-background-with-it-makes-fabric-hang def thread_function(a): conn.sudo(cmd, pty=False, warn=True) x = threading.Thread(target=thread_function, args=(1,)) x.start() def start_server(conn, rotation, res): conn.sudo("killall framebuffer-vncserver", warn=True) command = f"/home/vagrant/build/framebuffer-vncserver -r {rotation}" print(f"command: {command}") run_in_background(conn, command) def start_server_x11vnc(conn, rotation, res): (w, h, depth) = res conn.sudo("killall framebuffer-vncserver", warn=True) conn.sudo("killall x11vnc", warn=True) command = f"/usr/bin/x11vnc -shared -forever -rawfb map:/dev/fb0@{w}x{h}x{depth}" print(f"command: {command}") run_in_background(conn, command) def cls(conn): conn.sudo("dd if=/dev/zero of=/dev/fb0", warn=True) def grab(): with TemporaryDirectory() as tmpdirname: f = Path(tmpdirname) / "grab.png" with api.connect("localhost:0") as client: client.timeout = 5 client.captureScreen(f) im = Image.open(f) return im def _grab_and_sleep(blink_time): start = time.time() im = grab() dt = time.time() - start t = blink_time / 4.0 - dt if t > 0: sleep(t) return im def img_list_min(ls): immin = ls[0] for im in ls[1:]: # ImageChops.subtract= max((a-b),0) diff = ImageChops.subtract(immin, im) immin = ImageChops.subtract(immin, diff) return immin def grab_no_blink(blink_time=1.2): lsim = [_grab_and_sleep(blink_time) for _ in range(4)] im = img_list_min(lsim) return im def shot(conn, directory, png, rotation, *res): (w, h, depth) = res set_resolution(conn, *res) start_server(conn, rotation, res) if depth != 8: cls(conn) run_in_background(conn, "qmlscene -platform linuxfb") sleep(0.5) grab_no_blink().save(directory + "qmlscene_" + png) conn.sudo("killall qmlscene") if depth > 1: cls(conn) conn.sudo("fb-test") grab().save(directory + "fbtest_" + png) cls(conn) conn.sudo( f"python3 /vagrant/gradient.py --width {w} --height {h} --colorbit {depth}" ) grab().save(directory + "gradient_" + png) IMGDIR = "img/" def tshot(conn, rotation, *res): (w, h, depth) = res fname = f"{w}x{h}_c{depth}_rot{rotation}.png" shot(conn, IMGDIR, fname, rotation, *res) w, h = 160, 120 @entrypoint def main(): v = vagrant.Vagrant() v.up() with fabric.Connection( v.user_hostname_port(), connect_kwargs={ "key_filename": v.keyfile(), }, ) as conn: build(conn) os.makedirs(IMGDIR, exist_ok=True) for f in Path(IMGDIR).glob("*.png"): f.unlink() conn.sudo("killall qmlscene", warn=True) for rot in [0]: tshot(conn, rot, w, h, 1) tshot(conn, rot, w, h, 8) tshot(conn, rot, w, h, 16) tshot(conn, rot, w, h, 24) tshot(conn, rot, w, h, 32) for rot in [90, 180, 270]: tshot(conn, rot, w, h, 16) ================================================ FILE: yocto/framebuffer-vncserver_git.bb ================================================ DESCRIPTION = "VNC server running on top of framebuffer" HOMEPAGE = "https://github.com/ponty/framebuffer-vncserver" LICENSE = "GPLv2" DEPENDS = "libvncserver" RDEPENDS_${PN} = "libvncserver" SRC_URI = "git://github.com/ponty/framebuffer-vncserver.git" LIC_FILES_CHKSUM = "file://LICENSE;md5=8264535c0c4e9c6c335635c4026a8022" PR = "r1" PR_append = "+gitr${SRCPV}" S = "${WORKDIR}/git" inherit cmake SRCREV = "d3450b1a5ba7ebd7c3b6bcf5affda0975441cee2"