Merge branch 'feature/KASM-4489_watermark_time' into 'master'

Resolve KASM-4489 "Feature/ watermark time"

Closes KASM-4489

See merge request kasm-technologies/internal/KasmVNC!103
This commit is contained in:
Matthew McClaskey 2023-07-26 23:55:06 +00:00
commit b9e9a2d2a0
24 changed files with 3531 additions and 13 deletions

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@ -154,6 +154,9 @@ find_package(PNG REQUIRED)
# Check for libjpeg
find_package(JPEG REQUIRED)
find_package(Freetype REQUIRED)
include_directories(${FREETYPE_INCLUDE_DIRS})
# Staticly link libjpeg-turbo
set(JPEG_LIBRARIES "-Wl,-Bstatic -lturbojpeg -Wl,-Bdynamic")
# Warn if it doesn't seem to be the accelerated libjpeg that's found

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@ -58,7 +58,8 @@ RUN echo 'alias tv="./run-specs spec/vncserver_yaml_validation_spec.py"' >> ~/.b
RUN echo 'alias ty="./run-specs spec/vncserver_*spec.py"' >> ~/.bashrc
RUN echo 'alias ta="./run-specs"' >> ~/.bashrc
RUN echo 'alias vd="vncserver -dry-run"' >> ~/.bashrc
ENV SET_PASSWORD_FUNC 'sp() { echo -e "$VNC_PW\\n$VNC_PW\\n" | kasmvncpasswd -w -u $USER $HOME/.kasmpasswd; }'
RUN echo 'alias ss="sp; vncserver -select-de xfce"' >> ~/.bashrc
ENV SET_PASSWORD_FUNC 'sp() { echo -e "$VNC_PW\\n$VNC_PW\\n" | kasmvncpasswd -w -u $VNC_USER $HOME/.kasmpasswd; }'
RUN echo $SET_PASSWORD_FUNC >> ~/.bashrc
ENV LC_ALL=C.UTF-8

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@ -7,7 +7,7 @@ License: GPLv2+
URL: https://github.com/kasmtech/KasmVNC
BuildRequires: rsync
Requires: xorg-x11-xauth, xorg-x11-xkb-utils, xkeyboard-config, xorg-x11-server-utils, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny
Requires: xorg-x11-xauth, xorg-x11-xkb-utils, xkeyboard-config, xorg-x11-server-utils, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, perl-DateTime-TimeZone
Conflicts: tigervnc-server, tigervnc-server-minimal
%description

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@ -0,0 +1,17 @@
# - Find freetype
# Find the freetype libraries
#
# This module defines the following variables:
# FREETYPE_FOUND - True if freetype is found
# FREETYPE_INCLUDE_DIRS - include directories
#
find_package(PkgConfig)
pkg_check_modules(PC_FREETYPE freetype2)
find_path(FREETYPE_INCLUDE_DIRS NAMES ft2build.h HINTS ${PC_FREETYPE_INCLUDE_DIRS})
include(FindPackageHandleStandardArgs)
set(FPHSA_NAME_MISMATCHED 1)
find_package_handle_standard_args(freetype DEFAULT_MSG FREETYPE_INCLUDE_DIRS)
unset(FPHSA_NAME_MISMATCHED)
mark_as_advanced(FREETYPE_INCLUDE_DIRS)

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@ -189,6 +189,18 @@ rfb::IntParameter rfb::Server::DLP_WatermarkRepeatSpace
("DLP_WatermarkRepeatSpace",
"Number of pixels between repeats of the watermark",
0, 0, 4096);
rfb::IntParameter rfb::Server::DLP_WatermarkFontSize
("DLP_WatermarkFontSize",
"Font size for -DLP_WatermarkText",
48, 8, 256);
rfb::IntParameter rfb::Server::DLP_WatermarkTimeOffset
("DLP_WatermarkTimeOffset",
"Offset from UTC for -DLP_WatermarkText",
0, -24, 24);
rfb::IntParameter rfb::Server::DLP_WatermarkTimeOffsetMinutes
("DLP_WatermarkTimeOffsetMinutes",
"Offset from UTC for -DLP_WatermarkText, minutes",
0, -24 * 60, 24 * 60);
rfb::StringParameter rfb::Server::DLP_WatermarkImage
("DLP_WatermarkImage",
"PNG file to use as a watermark",
@ -201,6 +213,14 @@ rfb::StringParameter rfb::Server::DLP_WatermarkTint
("DLP_WatermarkTint",
"Tint the greyscale watermark by this color.",
"255,255,255,255");
rfb::StringParameter rfb::Server::DLP_WatermarkText
("DLP_WatermarkText",
"Use this text instead of an image for the watermark, with strftime time formatting",
"");
rfb::StringParameter rfb::Server::DLP_WatermarkFont
("DLP_WatermarkFont",
"Use this font for -DLP_WatermarkText instead of the bundled one",
"");
rfb::StringParameter rfb::Server::maxVideoResolution
("MaxVideoResolution",

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@ -49,12 +49,17 @@ namespace rfb {
static IntParameter DLP_ClipDelay;
static IntParameter DLP_KeyRateLimit;
static IntParameter DLP_WatermarkRepeatSpace;
static IntParameter DLP_WatermarkFontSize;
static IntParameter DLP_WatermarkTimeOffset;
static IntParameter DLP_WatermarkTimeOffsetMinutes;
static StringParameter DLP_ClipLog;
static StringParameter DLP_Region;
static StringParameter DLP_Clip_Types;
static StringParameter DLP_WatermarkImage;
static StringParameter DLP_WatermarkLocation;
static StringParameter DLP_WatermarkTint;
static StringParameter DLP_WatermarkText;
static StringParameter DLP_WatermarkFont;
static BoolParameter DLP_RegionAllowClick;
static BoolParameter DLP_RegionAllowRelease;
static IntParameter jpegVideoQuality;

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@ -974,6 +974,11 @@ void VNCServerST::writeUpdate()
blackOut();
}
if (watermarkData && Server::DLP_WatermarkText[0] && watermarkTextNeedsUpdate(true)) {
// If using a text watermark, we have to mark everything as changed...
refreshClients();
}
comparer->getUpdateInfo(&ui, pb->getRect());
toCheck = ui.changed.union_(ui.copied);

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@ -20,10 +20,14 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <zlib.h>
#include <rfb/LogWriter.h>
#include <rfb/ServerCore.h>
#include <rfb/VNCServerST.h>
#include "font.h"
#include <ft2build.h>
#include FT_FREETYPE_H
#include "Watermark.h"
@ -36,6 +40,10 @@ watermarkInfo_t watermarkInfo;
uint8_t *watermarkData, *watermarkUnpacked, *watermarkTmp;
uint32_t watermarkDataLen;
static uint16_t rw, rh;
static time_t lastUpdate;
static FT_Library ft = NULL;
static FT_Face face;
#define MAXW 4096
#define MAXH 4096
@ -92,15 +100,151 @@ static bool loadimage(const char path[]) {
return true;
}
// Note: w and h are absolute
static void str(uint8_t *buf, const char *txt, const uint32_t x_, const uint32_t y_,
const uint32_t w, const uint32_t h,
const uint32_t stride) {
unsigned ucs[256], i, ucslen;
unsigned len = strlen(txt);
i = 0;
ucslen = 0;
while (len > 0 && txt[i]) {
size_t ret = rfb::utf8ToUCS4(&txt[i], len, &ucs[ucslen]);
i += ret;
len -= ret;
ucslen++;
}
uint32_t x, y;
x = x_;
y = y_;
for (i = 0; i < ucslen; i++) {
if (FT_Load_Char(face, ucs[i], FT_LOAD_RENDER))
continue;
const FT_Bitmap * const map = &(face->glyph->bitmap);
if (FT_HAS_KERNING(face) && i) {
FT_Vector delta;
FT_Get_Kerning(face, ucs[i - 1], ucs[i], ft_kerning_default, &delta);
x += delta.x >> 6;
}
uint32_t row, col;
for (row = 0; row < (uint32_t) map->rows; row++) {
int ny = row + y - face->glyph->bitmap_top;
if (ny < 0)
continue;
if ((unsigned) ny >= h)
continue;
uint8_t *dst = (uint8_t *) buf;
dst += ny * stride + x;
const uint8_t *src = map->buffer + map->pitch * row;
for (col = 0; col < (uint32_t) map->width; col++) {
if (col + x >= w)
continue;
const uint8_t out = (src[col] + 8) >> 4;
dst[col] = out < 16 ? out : 15;
}
}
x += face->glyph->advance.x >> 6;
}
}
static uint32_t drawnwidth(const char *txt) {
unsigned ucs[256], i, ucslen;
unsigned len = strlen(txt);
i = 0;
ucslen = 0;
while (len > 0 && txt[i]) {
size_t ret = rfb::utf8ToUCS4(&txt[i], len, &ucs[ucslen]);
i += ret;
len -= ret;
ucslen++;
}
uint32_t x;
x = 0;
for (i = 0; i < ucslen; i++) {
if (FT_Load_Char(face, ucs[i], FT_LOAD_DEFAULT))
continue;
if (FT_HAS_KERNING(face) && i) {
FT_Vector delta;
FT_Get_Kerning(face, ucs[i - 1], ucs[i], ft_kerning_default, &delta);
x += delta.x >> 6;
}
x += face->glyph->advance.x >> 6;
}
return x;
}
static bool drawtext(const char fmt[], const int16_t utcOff, const char fontpath[],
const uint8_t fontsize) {
char buf[PATH_MAX];
if (!ft) {
if (FT_Init_FreeType(&ft))
abort();
if (fontpath[0]) {
if (FT_New_Face(ft, fontpath, 0, &face))
abort();
} else {
if (FT_New_Memory_Face(ft, font_otf, sizeof(font_otf), 0, &face))
abort();
}
FT_Set_Pixel_Sizes(face, fontsize, fontsize);
}
time_t now = lastUpdate = time(NULL);
now += utcOff * 60;
struct tm *tm = gmtime(&now);
size_t len = strftime(buf, PATH_MAX, fmt, tm);
if (!len)
return false;
free(watermarkInfo.src);
const uint32_t h = fontsize + 4;
const uint32_t w = drawnwidth(buf);
watermarkInfo.w = w;
watermarkInfo.h = h;
watermarkInfo.src = (uint8_t *) calloc(w, h);
str(watermarkInfo.src, buf, 0, fontsize, w, h, w);
return true;
}
bool watermarkInit() {
memset(&watermarkInfo, 0, sizeof(watermarkInfo_t));
watermarkData = watermarkUnpacked = watermarkTmp = NULL;
rw = rh = 0;
if (!Server::DLP_WatermarkImage[0])
if (!Server::DLP_WatermarkImage[0] && !Server::DLP_WatermarkText[0])
return true;
if (!loadimage(Server::DLP_WatermarkImage))
if (Server::DLP_WatermarkImage[0] && Server::DLP_WatermarkText[0]) {
vlog.error("WatermarkImage and WatermarkText can't be used together");
return false;
}
if (Server::DLP_WatermarkImage[0] && !loadimage(Server::DLP_WatermarkImage))
return false;
if (Server::DLP_WatermarkText[0] &&
!drawtext(Server::DLP_WatermarkText,
Server::DLP_WatermarkTimeOffset * 60 + Server::DLP_WatermarkTimeOffsetMinutes,
Server::DLP_WatermarkFont, Server::DLP_WatermarkFontSize))
return false;
if (Server::DLP_WatermarkRepeatSpace && Server::DLP_WatermarkLocation[0]) {
@ -136,10 +280,22 @@ bool watermarkInit() {
}
// update the screen-size rendered watermark whenever the screen is resized
// or if using text, every frame
void VNCServerST::updateWatermark() {
if (rw == pb->width() &&
rh == pb->height())
return;
rh == pb->height()) {
if (Server::DLP_WatermarkImage[0])
return;
if (!watermarkTextNeedsUpdate(false))
return;
}
if (Server::DLP_WatermarkText[0] && watermarkTextNeedsUpdate(false)) {
drawtext(Server::DLP_WatermarkText,
Server::DLP_WatermarkTimeOffset * 60 + Server::DLP_WatermarkTimeOffsetMinutes,
Server::DLP_WatermarkFont, Server::DLP_WatermarkFontSize);
}
rw = pb->width();
rh = pb->height();
@ -246,3 +402,15 @@ void packWatermark(const Region &changed) {
watermarkDataLen = destLen;
}
// Limit changes to once per second
bool watermarkTextNeedsUpdate(const bool early) {
static time_t now;
// We're called a couple times per frame, only grab the
// time on the first time so it doesn't change inside a frame
if (early)
now = time(NULL);
return now != lastUpdate;
}

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@ -36,6 +36,7 @@ extern watermarkInfo_t watermarkInfo;
bool watermarkInit();
void packWatermark(const rfb::Region &changed); // filter and pack the watermark for sending
bool watermarkTextNeedsUpdate(const bool early);
extern uint8_t *watermarkData;
extern uint32_t watermarkDataLen;

3107
common/rfb/font.h Normal file

File diff suppressed because it is too large Load Diff

2
debian/control vendored
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@ -14,7 +14,7 @@ Architecture: amd64 arm64
Depends: ${shlibs:Depends}, ${misc:Depends}, ${perl:Depends}, ssl-cert, xauth,
x11-xkb-utils, xkb-data, procps, libswitch-perl, libyaml-tiny-perl,
libhash-merge-simple-perl, libscalar-list-utils-perl, liblist-moreutils-perl,
libtry-tiny-perl, libgbm1
libtry-tiny-perl, libdatetime-timezone-perl, libgbm1
Provides: vnc-server
Description: KasmVNC provides remote web-based access to a Desktop or application.
While VNC is in the name, KasmVNC differs from other VNC variants such

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@ -7,7 +7,7 @@ License: GPLv2+
URL: https://github.com/kasmtech/KasmVNC
BuildRequires: rsync
Requires: xorg-x11-xauth, xkeyboard-config, xkbcomp, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, mesa-libgbm, libxshmfence
Requires: xorg-x11-xauth, xkeyboard-config, xkbcomp, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, perl-DateTime-TimeZone, mesa-libgbm, libxshmfence
Conflicts: tigervnc-server, tigervnc-server-minimal
%description

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@ -7,7 +7,7 @@ License: GPLv2+
URL: https://github.com/kasmtech/KasmVNC
BuildRequires: rsync
Requires: xauth, hostname, libxkbcommon-x11-0, xkeyboard-config, x11-tools, openssl, perl, libpixman-1-0, libjpeg8, libgomp1, libXfont2-2, libXdmcp6, libglvnd, xkbcomp, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, libgbm1, libxshmfence1
Requires: xauth, hostname, libxkbcommon-x11-0, xkeyboard-config, x11-tools, openssl, perl, libpixman-1-0, libjpeg8, libgomp1, libXfont2-2, libXdmcp6, libglvnd, xkbcomp, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, perl-DateTime-TimeZone, libgbm1, libxshmfence1
Conflicts: tigervnc, tigervnc-x11vnc
%description

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@ -7,7 +7,7 @@ License: GPLv2+
URL: https://github.com/kasmtech/KasmVNC
BuildRequires: rsync
Requires: xorg-x11-xauth, xorg-x11-xkb-utils, xkeyboard-config, xorg-x11-server-utils, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, hostname, mesa-libgbm, libxshmfence
Requires: xorg-x11-xauth, xorg-x11-xkb-utils, xkeyboard-config, xorg-x11-server-utils, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, perl-DateTime-TimeZone, hostname, mesa-libgbm, libxshmfence
Conflicts: tigervnc-server, tigervnc-server-minimal
%description

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@ -7,7 +7,7 @@ License: GPLv2+
URL: https://github.com/kasmtech/KasmVNC
BuildRequires: rsync
Requires: xorg-x11-xauth, xkeyboard-config, xorg-x11-server-utils, xkbcomp, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, hostname, mesa-libgbm, libxshmfence
Requires: xorg-x11-xauth, xkeyboard-config, xorg-x11-server-utils, xkbcomp, openssl, perl, perl-Switch, perl-YAML-Tiny, perl-Hash-Merge-Simple, perl-Scalar-List-Utils, perl-List-MoreUtils, perl-Try-Tiny, perl-DateTime-TimeZone, hostname, mesa-libgbm, libxshmfence
Conflicts: tigervnc-server, tigervnc-server-minimal
%description

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@ -2,7 +2,7 @@ import os
import re
import shutil
from os.path import expanduser
from mamba import description, context, fcontext, it, fit, before, after
from mamba import description, context, fcontext, it, fit, _it, before, after
from expects import expect, equal, contain, match
from helper.spec_helper import start_xvnc, kill_xvnc, run_cmd, clean_env, \
@ -268,6 +268,18 @@ with description('YAML to CLI') as self:
completed_process.stdout)
expect(cli_option).to(equal("-geometry '1024x768'"))
with it("allows wide utf characters"):
write_config('''
data_loss_prevention:
watermark:
text:
template: "星街すいせい"
''')
completed_process = run_vncserver()
cli_option = pick_cli_option('DLP_WatermarkText',
completed_process.stdout)
expect(cli_option).to(equal("-DLP_WatermarkText '星街すいせい'"))
with it("ignores empty section override"):
write_config('''
security:

9
t Normal file
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@ -0,0 +1,9 @@
use DateTime::TimeZone;
my $timezone = $ARGV[0];
if (DateTime::TimeZone->is_valid_name($timezone)) {
print "Valid timezone\n";
} else {
print "Invalid timezone\n";
}

11
t2 Normal file
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@ -0,0 +1,11 @@
use DateTime;
use DateTime::TimeZone;
#my $timezone_name = 'America/New_York';
my $timezone_name = 'UTC';
my $dt = DateTime->now(time_zone => $timezone_name);
my $offset = $dt->offset();
print "Timezone: $timezone_name\n";
print "Offset: $offset seconds\n";

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@ -0,0 +1,37 @@
package KasmVNC::CallbackValidator;
use strict;
use warnings;
use v5.10;
use Data::Dumper;
use KasmVNC::Utils;
sub new {
my ($class, $args) = @_;
my $self = bless {
isValidCallback => $args->{isValidCallback},
errorMessage => $args->{errorMessage}
}, $class;
}
sub validate {
my $self = shift;
$self->{configKey} = shift;
my @values = @{ listify($self->{configKey}->value()) };
foreach my $value (@values) {
$self->validateValue($value);
}
}
sub validateValue {
my $self = shift;
my $value = shift;
unless ($self->{isValidCallback}($value)) {
$self->{configKey}->addErrorMessage($self->{errorMessage});
}
}
1;

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@ -45,6 +45,8 @@ sub isPresent {
sub deriveBoolean {
my $value = shift;
return $value if containsWideSymbols($value);
switch($value) {
case 'true' {
return 1;
@ -63,4 +65,12 @@ sub printStackTrace {
print { *STDERR } $trace->as_string;
}
sub containsWideSymbols {
my $string = shift;
return 1 unless defined($string);
$string =~ /[^\x00-\xFF]/;
}
1;

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@ -92,6 +92,11 @@ data_loss_prevention:
# location: 10,10
# tint: 255,20,20,128
# repeat_spacing: 10
text:
template: "${USER} %H:%M"
font: auto
font_size: 48
timezone_name: Australia/Adelaide
logging:
# "verbose" SETTING LOGS YOUR PRIVATE INFORMATION. Keypresses and clipboard content
level: off

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@ -27,6 +27,7 @@
use v5.10;
use warnings;
use utf8;
sub DEVENV() { $ENV{KASMVNC_DEVELOPMENT} };
use if DEVENV, Devel::StackTrace;
@ -38,11 +39,14 @@ use List::Util qw(first);
use List::MoreUtils qw(any uniq);
use Data::Dumper;
use Try::Tiny;
use DateTime;
use DateTime::TimeZone;
use KasmVNC::CliOption;
use KasmVNC::ConfigKey;
use KasmVNC::PatternValidator;
use KasmVNC::EnumValidator;
use KasmVNC::CallbackValidator;
use KasmVNC::Config;
use KasmVNC::Users;
use KasmVNC::TextOption;
@ -56,6 +60,7 @@ use constant {
OPTIONAL_ARG_VALUE => 2
};
UseUtfStdio();
InitLogger();
CheckWeCanRunInThisEnvironment();
@ -1765,6 +1770,79 @@ sub DefineConfigToCLIConversion {
})
]
}),
KasmVNC::CliOption->new({
name => 'DLP_WatermarkText',
configKeys => [
KasmVNC::ConfigKey->new({
name => "data_loss_prevention.watermark.text.template",
validator => KasmVNC::CallbackValidator->new({
isValidCallback => sub {
my $value = shift;
isBlank(ConfigValue("data_loss_prevention.watermark.image"));
},
errorMessage => "Watermark image and text can't be used at the same time"
}),
})
]
}),
KasmVNC::CliOption->new({
name => 'DLP_WatermarkFont',
configKeys => [
KasmVNC::ConfigKey->new({
name => "data_loss_prevention.watermark.text.font",
type => KasmVNC::ConfigKey::ANY
})
],
isActiveSub => sub {
$self = shift;
my $value = $self->configValue();
isPresent($value) && $value ne "auto";
}
}),
KasmVNC::CliOption->new({
name => 'DLP_WatermarkFontSize',
configKeys => [
KasmVNC::ConfigKey->new({
name => "data_loss_prevention.watermark.text.font_size",
validator => KasmVNC::CallbackValidator->new({
isValidCallback => sub {
my $value = shift;
return 0 unless $value =~ /^\d+$/;
$value >= 8 && $value <= 256;
},
errorMessage => "must be in range 8..256"
}),
})
]
}),
KasmVNC::CliOption->new({
name => 'DLP_WatermarkTimeOffsetMinutes',
configKeys => [
KasmVNC::ConfigKey->new({
name => "data_loss_prevention.watermark.text.timezone_name",
validator => KasmVNC::CallbackValidator->new({
isValidCallback => sub {
my $timezone_name = shift;
DateTime::TimeZone->is_valid_name($timezone_name);
},
errorMessage => "must be a valid timezone name like Australia/Adelaide"
})
})
],
deriveValueSub => sub {
my $self = shift;
my $timezone_name = $self->configValue();
my $dt = DateTime->now(time_zone => $timezone_name);
my $offset_in_seconds = $dt->offset();
$offset_in_seconds/60;
}
}),
KasmVNC::CliOption->new({
name => 'DLP_Log',
configKeys => [
@ -2835,3 +2913,7 @@ sub InitLogger {
my $debugEnabled = any { $_ eq "-debug" } @ARGV;
$logger = KasmVNC::Logger->new({ level => $debugEnabled ? "debug" : "warn" });
}
sub UseUtfStdio {
use open qw( :std :encoding(UTF-8) );
}

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@ -52,7 +52,8 @@ Xvnc_CPPFLAGS = $(XVNC_CPPFLAGS) -DKASMVNC -DNO_MODULE_EXTS \
-I$(top_srcdir)/dri3 @LIBDRM_CFLAGS@
Xvnc_LDADD = $(XVNC_LIBS) libvnccommon.la $(COMMON_LIBS) \
$(XSERVER_LIBS) $(XSERVER_SYS_LIBS) $(XVNC_SYS_LIBS) -lX11 -lwebp -lssl -lcrypto -lcrypt
$(XSERVER_LIBS) $(XSERVER_SYS_LIBS) $(XVNC_SYS_LIBS) -lX11 -lwebp -lssl -lcrypto -lcrypt \
-lfreetype
Xvnc_LDFLAGS = $(LD_EXPORT_SYMBOLS_FLAG) -fopenmp

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@ -243,6 +243,8 @@ Default \fB-1\fP.
.B \-WebpVideoQuality \fInum\fP
The WEBP quality to use when in video mode.
Default \fB-1\fP.
.
.TP
.B \-MaxVideoResolution \fI1920x1080\fP
When in video mode, downscale the screen to max this size. Keeps aspect ratio.
Default \fB1920x1080\fP.
@ -372,6 +374,28 @@ The color components can be used to colorize the greyscale watermark, and the al
can be used to make it fainter.
.
.TP
.B \-DLP_WatermarkText \fI"foo %H:%M"\fP
Instead of an image, render this text as the watermark. Takes time formatting options
for \fBstrftime\fP.
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.TP
.B \-DLP_WatermarkFont \fI/path/to/font.ttf\fP
Use a different font for -DLP_WatermarkText than the bundled one. TTF and OTF fonts
are accepted.
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.TP
.B \-DLP_WatermarkFontSize \fI48\fP
Font size for -DLP_WatermarkText. Default \fI48\fP.
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.TP
.B \-DLP_WatermarkTimeOffset \fI0\fP
Time offset from UTC, hours. Default \fI0\fP.
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.TP
.B \-DLP_WatermarkTimeOffsetMinutes \fI0\fP
Time offset from UTC, minutes. Default \fI0\fP.
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.TP
.B \-selfBench
Run a set of self-benchmarks and exit.
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