Make the burn-in look more like the real thing.

Exponential decay instead of linear.

.github/FUNDING.yml

@@ -0,0 +1,4 @@
+# These are supported funding model platforms
+
+patreon: swordfish90
+custom: ['https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=flscogna%40gmail.com&item_name=Support+CRT&currency_code=EUR&source=url']

.github/workflows/appimage.yml

@@ -0,0 +1,98 @@
+name: "ci"
+
+on:
+  push:
+    tags: "**"
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  appimage:
+    runs-on: ubuntu-18.04
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+      with:
+        submodules: true
+
+    - name: Install dependencies
+      run: |
+        sudo add-apt-repository -y ppa:beineri/opt-qt-5.15.2-bionic
+        sudo apt-get update -qq
+        sudo apt-get install -y \
+        build-essential make wget libgl1-mesa-dev \
+        qt515declarative qt515graphicaleffects \
+        qt515quickcontrols qt515quickcontrols2
+
+    - name: Download QT appimage builder
+      run: |
+        wget -c -O linuxdeployqt.AppImage \
+        https://github.com/probonopd/linuxdeployqt/releases/download/continuous/linuxdeployqt-continuous-x86_64.AppImage
+        chmod a+x linuxdeployqt.AppImage
+
+    - name: Build project
+      run: |
+        source /opt/qt*/bin/qt*-env.sh && \
+        qmake -v && \
+        qmake CONFIG+=release PREFIX=/usr && \
+        make -j$(nproc)
+
+    - name: Install to appdir
+      run: |
+        source /opt/qt*/bin/qt*-env.sh && \
+        make INSTALL_ROOT=appdir -j$(nproc) install
+
+    - name: Extract version number
+      run: |
+        # Extract version for linuxdeployqt to name the file. Use the tag as
+        # release name but remove prefix.
+        echo "VERSION=$(echo '${{ github.ref }}' | sed 's;.*/;;')" >> $GITHUB_ENV
+
+    - name: Build appimage directory
+      run: |
+        mkdir -p \
+        appdir/usr/bin \
+        appdir/usr/lib \
+        appdir/usr/share/applications \
+        appdir/usr/share/metainfo \
+        appdir/usr/share/icons/hicolor/128x128/apps
+
+        cp cool-retro-term appdir/usr/bin/
+        cp cool-retro-term.desktop appdir/usr/share/applications/
+        cp packaging/appdata/cool-retro-term.appdata.xml appdir/usr/share/metainfo/
+        cp app/icons/128x128/cool-retro-term.png appdir/usr/share/icons/hicolor/128x128/apps/
+        cp -r ./app/qml appdir/usr/
+        # Workaround for https://github.com/probonopd/linuxdeployqt/issues/78
+        cp -r ./qmltermwidget/QMLTermWidget appdir/usr/qml/
+
+        find appdir | sort
+
+    - name: Build appimage
+      run: |
+        source /opt/qt*/bin/qt*-env.sh && \
+        ./linuxdeployqt.AppImage appdir/usr/share/applications/cool-retro-term.desktop \
+        -verbose=1 -appimage \
+        -qmldir=./app/qml/ \
+        -qmldir=./qmltermwidget/
+      env:
+        # Unset environment variables
+        QTDIR:
+        QT_PLUGIN_PATH:
+        LD_LIBRARY_PATH:
+
+    - name: Upload release
+      uses: softprops/action-gh-release@v1
+      with:
+        body: appimage release
+        files: ./**/Cool_Retro_Term-*-x86_64.AppImage
+
+    - name: Clean up
+      if: always()
+      run: |
+        find appdir -executable -type f -exec ldd {} \; | grep " => /usr" | cut -d " " -f 2-3 | sort | uniq
+        make clean
+        rm -rf appdir

README.md

@@ -8,9 +8,9 @@
 cool-retro-term is a terminal emulator which mimics the look and feel of the old cathode tube screens.
 It has been designed to be eye-candy, customizable, and reasonably lightweight.
 
-It uses the QML port of qtermwidget (Konsole) developed by me: https://github.com/Swordfish90/qmltermwidget .
+It uses the QML port of qtermwidget (Konsole): https://github.com/Swordfish90/qmltermwidget.
 
-This terminal emulator works under Linux and macOS and requires Qt 5.2 or higher.
+This terminal emulator works under Linux and macOS and requires Qt5. It's suggested that you stick to the latest LTS version.
 
 Settings such as colors, fonts, and effects can be accessed via context menu.
 
@@ -20,192 +20,11 @@ Settings such as colors, fonts, and effects can be accessed via context menu.
 ![Image](<https://i.imgur.com/GYRDPzJ.jpg>)
 
 ## Install
-Walk the easy way and install cool-retro-term using one of these convenient packages:
 
-Just grab the latest AppImage from the release page and make it executable and run it:
+If you want to get a hold of the latest version, just go to the Releases page and grab the latest AppImage (Linux) or dmg (macOS).
 
-    wget https://github.com/Swordfish90/cool-retro-term/releases/download/1.1.1/Cool-Retro-Term-1.1.1-x86_64.AppImage
-    chmod a+x Cool-Retro-Term-1.1.1-x86_64.AppImage
-    ./Cool-Retro-Term-1.1.1-x86_64.AppImage
+Alternatively, most distributions such as Ubuntu, Fedora or Arch already package cool-retro-term in their official repositories.
 
-**Fedora** has the `cool-retro-term` in the official repositories. All you have to do is `sudo dnf install cool-retro-term`.
+## Building
 
-Users of **openSUSE** can grab a package from [Open Build Service](http://software.opensuse.org/package/cool-retro-term).
-
-**Arch** users can install this [package](https://aur.archlinux.org/packages/cool-retro-term-git/) directly via the [AUR](https://aur.archlinux.org):
-
-    trizen -S aur/cool-retro-term-git
-
-or use:
-
-    pacman -S cool-retro-term
-
-to install precompiled from community repository.
-
-Users of **Ubuntu 14.04 LTS (Trusty) up to 15.10 (Wily)** can use [this PPA](https://launchpad.net/~bugs-launchpad-net-falkensweb).
-
-**Ubuntu 17.10** can use [this PPA](https://launchpad.net/%7Evantuz/+archive/ubuntu/cool-retro-term)
-
-**Solus** users can install using `eopg`:
-```
-eopkg it cool-retro-term
-```
-
-**macOS** users can grab the latest dmg from the [release page](https://github.com/Swordfish90/cool-retro-term/releases) or install via Homebrew:
-```
-brew cask install cool-retro-term
-```
-
-**FreeBSD** users can install cool-retro-term with `pkg`:
-
-    pkg install cool-retro-term
-    
-## Build instructions (FreeBSD)
-
-Grab a copy of [the FreeBSD Ports Collection](https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/ports-using.html), modify [`/usr/ports/x11/cool-retro-term/Makefile`](https://svnweb.freebsd.org/ports/head/x11/cool-retro-term/Makefile?view=markup) as you like, and then run `make install` to build and install the emulator:
-
-```
-cd /usr/ports/x11/cool-retro-term
-make install
-```
-
-## Build instructions (Linux)
-
-Build cool-retro-term yourself, you know, the retro way.
-
-## Dependencies
-Make sure to install these first.
-
----
-
-**Ubuntu 14.04**
-
-    sudo apt-get install build-essential qmlscene qt5-qmake qt5-default qtdeclarative5-dev qtdeclarative5-controls-plugin qtdeclarative5-qtquick2-plugin libqt5qml-graphicaleffects qtdeclarative5-dialogs-plugin qtdeclarative5-localstorage-plugin qtdeclarative5-window-plugin
-
----
-
-**Ubuntu 16.10**
-
-    sudo apt-get install build-essential qmlscene qt5-qmake qt5-default qtdeclarative5-dev qml-module-qtquick-controls qtdeclarative5-qtquick2-plugin libqt5qml-graphicaleffects qml-module-qtquick-dialogs qtdeclarative5-localstorage-plugin qtdeclarative5-window-plugin
-
----
-
-**Ubuntu 17.04**
-
-    sudo apt install build-essential libqt5qml-graphicaleffects qml-module-qt-labs-folderlistmodel qml-module-qt-labs-settings qml-module-qtquick-controls qml-module-qtquick-dialogs qmlscene qt5-default qt5-qmake qtdeclarative5-dev qtdeclarative5-localstorage-plugin qtdeclarative5-qtquick2-plugin qtdeclarative5-window-plugin
-
----
-
-**Ubuntu 17.10**
-
-    sudo apt-get install build-essential qml-module-qtgraphicaleffects qml-module-qt-labs-folderlistmodel qml-module-qt-labs-settings qml-module-qtquick-controls qml-module-qtquick-dialogs qmlscene qt5-default qt5-qmake qtdeclarative5-dev qtdeclarative5-localstorage-plugin qtdeclarative5-qtquick2-plugin qtdeclarative5-window-plugin
-
----
-
-**snapcraft (most of distros)**
-
-    sudo snap install cool-retro-term --classic
-
----
-
-**Debian Jessie and above**
-
-    sudo apt install build-essential qmlscene qt5-qmake qt5-default qtdeclarative5-dev qml-module-qtquick-controls qml-module-qtgraphicaleffects qml-module-qtquick-dialogs qml-module-qtquick-localstorage qml-module-qtquick-window2 qml-module-qt-labs-settings qml-module-qt-labs-folderlistmodel
-
----
-
-**Fedora**
-This command should install the known fedora dependencies:
-
-    sudo yum -y install qt5-qtbase qt5-qtbase-devel qt5-qtdeclarative qt5-qtdeclarative-devel qt5-qtgraphicaleffects qt5-qtquickcontrols redhat-rpm-config
-
-or:
-
-    sudo dnf -y install qt5-qtbase qt5-qtbase-devel qt5-qtdeclarative qt5-qtdeclarative-devel qt5-qtgraphicaleffects qt5-qtquickcontrols redhat-rpm-config
-
----
-
-**Arch Linux**
-
-    sudo pacman -S qt5-base qt5-declarative qt5-quickcontrols qt5-graphicaleffects
-    
----
-
-**openSUSE**
-
-Add repository with latest Qt 5 (this is only needed on openSUSE 13.1, Factory already has it):
-
-    sudo zypper ar http://download.opensuse.org/repositories/KDE:/Qt5/openSUSE_13.1/ KDE:Qt5
-
-Install dependencies:
-
-    sudo zypper install libqt5-qtbase-devel libqt5-qtdeclarative-devel libqt5-qtquickcontrols libqt5-qtgraphicaleffects
-
----
-
-**Anyone else**
-
-Install Qt directly from here http://qt-project.org/downloads . Once done export them in you path (replace "_/opt/Qt5.3.1/5.3/gcc_64/bin_" with your correct folder):
-    
-    export PATH=/opt/Qt5.3.1/5.3/gcc_64/bin/:$PATH
----
-
-### Compile
-Once you installed all dependencies (Qt is installed and in your path) you need to compile and run the application: 
-
-```bash
-# Get it from GitHub
-git clone --recursive https://github.com/Swordfish90/cool-retro-term.git
-
-# Build it
-cd cool-retro-term
-
-# Compile (Fedora and OpenSUSE user should use qmake-qt5 instead of qmake)
-qmake && make
-
-# Have fun!
-./cool-retro-term
-```
-
-## Build instructions (macOS)
-
-1. Install [Xcode](https://developer.apple.com/xcode/) and agree to the licence agreement
-2. Enter the following commands into the terminal:
-
-**Brew**
-
-```sh
-brew install qt5
-git clone --recursive https://github.com/Swordfish90/cool-retro-term.git
-export CPPFLAGS="-I/usr/local/opt/qt5/include"
-export LDFLAGS="-L/usr/local/opt/qt5/lib"
-export PATH=/usr/local/opt/qt5/bin:$PATH
-cd cool-retro-term
-qmake && make
-mkdir cool-retro-term.app/Contents/PlugIns
-cp -r qmltermwidget/QMLTermWidget cool-retro-term.app/Contents/PlugIns
-open cool-retro-term.app
-```
-
-**MacPorts**
-
-```sh
-sudo port install qt5
-git clone --recursive https://github.com/Swordfish90/cool-retro-term.git
-cd cool-retro-term
-/opt/local/libexec/qt5/bin/qmake && make
-mkdir cool-retro-term.app/Contents/PlugIns
-cp -r qmltermwidget/QMLTermWidget cool-retro-term.app/Contents/PlugIns
-open cool-retro-term.app
-```
-
-**Homebrew**
-
-```sh
-brew cask install cool-retro-term
-```
-
-## Donations
-I made this project in my spare time because I love what I'm doing. If you are enjoying it and you want to buy me a beer click [here](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=flscogna%40gmail%2ecom&lc=IT&item_name=Filippo%20Scognamiglio&currency_code=EUR&bn=PP%2dDonationsBF%3abtn_donate_LG%2egif%3aNonHosted).
-
-You can also add "bounties" on your favourite issues. More information on the [Bountysource](https://www.bountysource.com/teams/crt/issues) page.
+Check out the wiki and follow the instructions on how to build it on [Linux](https://github.com/Swordfish90/cool-retro-term/wiki/Build-Instructions-(Linux)) and [macOS](https://github.com/Swordfish90/cool-retro-term/wiki/Build-Instructions-(macOS)).

app/app.pro

@@ -1,4 +1,4 @@
-QT += qml quick widgets sql
+QT += qml quick widgets sql quickcontrols2
 TARGET = cool-retro-term 
 
 DESTDIR = $$OUT_PWD/../

app/main.cpp

@@ -6,11 +6,13 @@
 
 #include <QtWidgets/QApplication>
 #include <QIcon>
+#include <QQuickStyle>
 
 #include <QDebug>
 #include <stdlib.h>
 
 #include <QFontDatabase>
+#include <QLoggingCategory>
 
 #include <fileio.h>
 #include <monospacefontmanager.h>
@@ -33,6 +35,9 @@ int main(int argc, char *argv[])
     // This disables QT appmenu under Ubuntu, which is not working with QML apps.
     setenv("QT_QPA_PLATFORMTHEME", "", 1);
 
+    // Disable Connections slot warnings
+    QLoggingCategory::setFilterRules("qt.qml.connections.warning=false");
+
 #if defined (Q_OS_LINUX)
     setenv("QSG_RENDER_LOOP", "threaded", 0);
 #endif
@@ -56,18 +61,16 @@ int main(int argc, char *argv[])
         return 0;
     }
 
-    QString appVersion("1.1.1");
+    QString appVersion("1.2.0");
 
     if (argc>1 && (!strcmp(argv[1],"-v") || !strcmp(argv[1],"--version"))) {
         QTextStream cout(stdout, QIODevice::WriteOnly);
         cout << "cool-retro-term " << appVersion << endl;
-	return 0;
+        return 0;
     }
 
     QApplication app(argc, argv);
-    // set application attributes
-    // Has no effects, see https://bugreports.qt.io/browse/QTBUG-51293
-    // app.setAttribute(Qt::AA_MacDontSwapCtrlAndMeta, true);
+    app.setAttribute(Qt::AA_MacDontSwapCtrlAndMeta, true);
 
     QQmlApplicationEngine engine;
     FileIO fileIO;

app/qml/ApplicationSettings.qml

@@ -32,7 +32,9 @@ QtObject {
     readonly property real maximumFontScaling: 2.50
 
     readonly property real minBurnInFadeTime: 160
-    readonly property real maxBurnInFadeTime: 1600
+    readonly property real maxBurnInFadeTime: 160000
+
+    property bool isMacOS: Qt.platform.os === "osx"
 
     // GENERAL SETTINGS ///////////////////////////////////////////////////////
     property int x: 100
@@ -41,7 +43,7 @@ QtObject {
     property int height: 768
 
     property bool fullscreen: false
-    property bool showMenubar: Qt.platform.os === "osx" ? true : false
+    property bool showMenubar: false
 
     property string wintitle: "cool-retro-term"
 
@@ -52,9 +54,7 @@ QtObject {
     property bool verbose: false
 
     property real bloomQuality: 0.5
-
     property real burnInQuality: 0.5
-    property bool useFastBurnIn: Qt.platform.os === "osx" ? false : true
 
     property bool blinkingCursor: false
 
@@ -99,11 +99,17 @@ QtObject {
     property real rbgShift: 0.0
 
     property real _margin: 0.5
+    property real _frameMargin: 0.5
+
     property real margin: Utils.lint(1.0, 20.0, _margin)
+    property real frameMargin: Utils.lint(1.0, 50.0, _frameMargin)
+
+    property real totalMargin: frameMargin + margin
 
     readonly property int no_rasterization: 0
     readonly property int scanline_rasterization: 1
     readonly property int pixel_rasterization: 2
+    readonly property int subpixel_rasterization: 3
 
     property int rasterization: no_rasterization
 
@@ -145,6 +151,13 @@ QtObject {
                     target: fontManager
                     source: "FontPixels.qml"
                 }
+            },
+            State {
+                when: rasterization == subpixel_rasterization
+                PropertyChanges {
+                    target: fontManager
+                    source: "FontPixels.qml"
+                }
             }
         ]
 
@@ -229,9 +242,7 @@ QtObject {
             "bloomQuality": bloomQuality,
             "burnInQuality": burnInQuality,
             "useCustomCommand": useCustomCommand,
-            "customCommand": customCommand,
-            "useFastBurnIn": useFastBurnIn,
-            "blinkingCursor": blinkingCursor
+            "customCommand": customCommand
         }
         return stringify(settings)
     }
@@ -258,7 +269,9 @@ QtObject {
             "windowOpacity": windowOpacity,
             "fontName": fontNames[rasterization],
             "fontWidth": fontWidth,
-            "margin": _margin
+            "margin": _margin,
+            "blinkingCursor": blinkingCursor,
+            "frameMargin": _frameMargin,
         }
         return settings
     }
@@ -324,12 +337,6 @@ QtObject {
                 !== undefined ? settings.useCustomCommand : useCustomCommand
         customCommand = settings.customCommand
                 !== undefined ? settings.customCommand : customCommand
-
-        useFastBurnIn = settings.useFastBurnIn
-                !== undefined ? settings.useFastBurnIn : useFastBurnIn
-
-        blinkingCursor = settings.blinkingCursor
-                !== undefined ? settings.blinkingCursor : blinkingCursor
     }
 
     function loadProfileString(profileString) {
@@ -371,6 +378,9 @@ QtObject {
         fontWidth = settings.fontWidth !== undefined ? settings.fontWidth : fontWidth
 
         _margin = settings.margin !== undefined ? settings.margin : _margin
+        _frameMargin = settings.frameMargin !== undefined ? settings.frameMargin : _frameMargin
+
+        blinkingCursor = settings.blinkingCursor !== undefined ? settings.blinkingCursor : blinkingCursor
 
         handleFontChanged()
     }
@@ -451,7 +461,9 @@ QtObject {
                 "screenCurvature": 0.3,
                 "staticNoise": 0.1198,
                 "windowOpacity": 1,
-                "margin": 0.5
+                "margin": 0.5,
+                "blinkingCursor": false,
+                "frameMargin": 0.1
             }'
             builtin: true
         }
@@ -478,7 +490,9 @@ QtObject {
                 "screenCurvature": 0.3,
                 "staticNoise": 0.1198,
                 "windowOpacity": 1,
-                "margin": 0.5
+                "margin": 0.5,
+                "blinkingCursor": false,
+                "frameMargin": 0.1
             }'
             builtin: true
         }
@@ -505,7 +519,9 @@ QtObject {
                 "screenCurvature": 0.3,
                 "staticNoise": 0.15,
                 "windowOpacity": 1,
-                "margin": 0.5
+                "margin": 0.5,
+                "blinkingCursor": false,
+                "frameMargin": 0.1
             }'
             builtin: true
         }
@@ -532,7 +548,9 @@ QtObject {
                 "screenCurvature": 0,
                 "staticNoise": 0.15,
                 "windowOpacity": 1,
-                "margin": 0.5
+                "margin": 0.5,
+                "blinkingCursor": false,
+                "frameMargin": 0.1
             }'
             builtin: true
         }
@@ -559,7 +577,9 @@ QtObject {
                 "screenCurvature": 0.5,
                 "staticNoise": 0.099,
                 "windowOpacity": 1,
-                "margin": 0.5
+                "margin": 0.5,
+                "blinkingCursor": false,
+                "frameMargin": 0.2
             }'
             builtin: true
         }
@@ -586,7 +606,9 @@ QtObject {
                 "screenCurvature": 0.5,
                 "staticNoise": 0.2969,
                 "windowOpacity": 1,
-                "margin": 0.5
+                "margin": 0.5,
+                "blinkingCursor": false,
+                "frameMargin": 0.5
             }'
             builtin: true
         }
@@ -613,7 +635,9 @@ QtObject {
                 "screenCurvature": 0.4,
                 "staticNoise": 0.0503,
                 "windowOpacity": 1,
-                "margin": 0.5
+                "margin": 0.5,
+                "blinkingCursor": false,
+                "frameMargin": 0.2
             }'
             builtin: true
         }
@@ -640,7 +664,9 @@ QtObject {
                 "screenCurvature": 0.2,
                 "staticNoise": 0,
                 "windowOpacity": 1,
-                "margin": 0.5
+                "margin": 0.5,
+                "blinkingCursor": false,
+                "frameMargin": 0.1
             }'
             builtin: true
         }
@@ -667,7 +693,9 @@ QtObject {
                 "screenCurvature": 0,
                 "staticNoise": 0.0955,
                 "windowOpacity": 0.7,
-                "margin": 0.1
+                "margin": 0.1,
+                "blinkingCursor": false,
+                "frameMargin": 0
             }'
             builtin: true
         }

app/qml/BurnInEffect.qml

@@ -29,26 +29,29 @@ Loader {
     property real lastUpdate: 0
     property real prevLastUpdate: 0
 
-    property real delay: (1.0 / appSettings.fps) * 1000
-    property real burnIn: appSettings.burnIn
-    property real burnInFadeTime: 1 / Utils.lint(_minBurnInFadeTime, _maxBurnInFadeTime, burnIn)
+    property real burnIn: appSettings.burnIn;
+    property real burnInFadeTime: (1 / Utils.lint(_minBurnInFadeTime, _maxBurnInFadeTime, burnIn))*64
     property real _minBurnInFadeTime: appSettings.minBurnInFadeTime
     property real _maxBurnInFadeTime: appSettings.maxBurnInFadeTime
 
-    active: appSettings.useFastBurnIn && appSettings.burnIn !== 0
+    active: appSettings.burnIn !== 0
 
     anchors.fill: parent
 
     function completelyUpdate() {
-        prevLastUpdate = lastUpdate;
-        lastUpdate = timeManager.time;
-        item.source.scheduleUpdate();
+        let newTime = timeManager.time
+        if (newTime > lastUpdate) {
+            prevLastUpdate = lastUpdate
+            lastUpdate = newTime
+        }
+
+        item.source.scheduleUpdate()
     }
 
-    function restartBlurSource(){
-        prevLastUpdate = timeManager.time;
-        lastUpdate = prevLastUpdate;
-        completelyUpdate();
+    function restartBlurSource() {
+        prevLastUpdate = timeManager.time
+        lastUpdate = prevLastUpdate
+        completelyUpdate()
     }
 
     sourceComponent: Item {
@@ -72,23 +75,37 @@ Loader {
 
             Connections {
                 target: kterminal
-                onImagePainted: completelyUpdate()
+
+                onImagePainted: {
+                    completelyUpdate()
+                }
             }
             // Restart blurred source settings change.
-            Connections{
-                target: appSettings
-                onBurnInChanged: burnInEffect.restartBlurSource();
-                onTerminalFontChanged: burnInEffect.restartBlurSource();
-                onRasterizationChanged: burnInEffect.restartBlurSource();
-                onBurnInQualityChanged: burnInEffect.restartBlurSource();
-            }
-
             Connections {
-                target: kterminalScrollbar
-                onOpacityChanged: completelyUpdate()
+                target: appSettings
+
+                onBurnInChanged: {
+                    burnInEffect.restartBlurSource()
+                }
+
+                onTerminalFontChanged: {
+                    burnInEffect.restartBlurSource()
+                }
+
+                onRasterizationChanged: {
+                    burnInEffect.restartBlurSource()
+                }
+
+                onBurnInQualityChanged: {
+                    burnInEffect.restartBlurSource()
+                }
             }
         }
 
+        ShaderLibrary {
+            id: shaderLibrary
+        }
+
         ShaderEffect {
             id: burnInShaderEffect
 
@@ -118,9 +135,7 @@ Loader {
 
                  uniform highp float prevLastUpdate;" +
 
-                "float rgb2grey(vec3 v){
-                    return dot(v, vec3(0.21, 0.72, 0.04));
-                }" +
+                shaderLibrary.rgb2grey +
 
                 "void main() {
                     vec2 coords = qt_TexCoord0;
@@ -131,9 +146,8 @@ Loader {
                     float prevMask = accColor.a;
                     float currMask = rgb2grey(txtColor);
 
-                    highp float blurDecay = clamp((lastUpdate - prevLastUpdate) * burnInTime, 0.0, 1.0);
-                    blurDecay = max(0.0, blurDecay - prevMask);
-                    vec3 blurColor = accColor.rgb - vec3(blurDecay);
+                    highp float blurDecay = clamp(pow(0.5, burnInTime * (lastUpdate - prevLastUpdate)), 0.0, 1.0);
+                    vec3 blurColor = accColor.rgb * vec3(blurDecay);
                     vec3 color = max(blurColor, txtColor);
 
                     gl_FragColor = vec4(color, currMask);

app/qml/ColorButton.qml

@@ -34,10 +34,8 @@ Item {
         visible: false
 
         //This is a workaround to a Qt 5.2 bug.
-        onColorChanged: if (Qt.platform.os !== "osx")
-                            colorSelected(color)
-        onAccepted: if (Qt.platform.os === "osx")
-                        colorSelected(color)
+        onColorChanged: if (!appSettings.isMacOS) colorSelected(color)
+        onAccepted: if (appSettings.isMacOS) colorSelected(color)
     }
     Rectangle {
         anchors.fill: parent

app/qml/Fonts.qml

@@ -213,7 +213,7 @@ QtObject {
         ListElement {
             name: "IBM_3278"
             text: "HD: IBM 3278 (1971)"
-            source: "fonts/1971-ibm-3278/3270Medium.ttf"
+            source: "fonts/1971-ibm-3278/3270-Regular.ttf"
             lineSpacing: 0.2
             pixelSize: 32
             fontWidth: 1.0

app/qml/PreprocessedTerminal.qml

@@ -34,7 +34,6 @@ Item{
 
     property ShaderEffectSource mainSource: kterminalSource
     property BurnInEffect burnInEffect: burnInEffect
-    property SlowBurnIn slowBurnInEffect: slowBurnInEffect
     property real fontWidth: 1.0
     property real screenScaling: 1.0
     property real scaleTexture: 1.0
@@ -45,35 +44,61 @@ Item{
     property size fontMetrics: kterminal.fontMetrics
 
     // Manage copy and paste
-    Connections{
+    Connections {
         target: copyAction
-        onTriggered: kterminal.copyClipboard();
+
+        onTriggered: {
+            kterminal.copyClipboard()
+        }
     }
-    Connections{
+    Connections {
         target: pasteAction
-        onTriggered: kterminal.pasteClipboard()
+
+        onTriggered: {
+            kterminal.pasteClipboard()
+        }
     }
 
     //When settings are updated sources need to be redrawn.
-    Connections{
+    Connections {
         target: appSettings
-        onFontScalingChanged: terminalContainer.updateSources();
-        onFontWidthChanged: terminalContainer.updateSources();
+
+        onFontScalingChanged: {
+            terminalContainer.updateSources()
+        }
+
+        onFontWidthChanged: {
+            terminalContainer.updateSources()
+        }
     }
-    Connections{
+    Connections {
         target: terminalContainer
-        onWidthChanged: terminalContainer.updateSources();
-        onHeightChanged: terminalContainer.updateSources();
+
+        onWidthChanged: {
+            terminalContainer.updateSources()
+        }
+
+        onHeightChanged: {
+            terminalContainer.updateSources()
+        }
     }
+    Connections {
+        target: terminalWindow
+
+        onActiveChanged: {
+            kterminal.forceActiveFocus()
+        }
+    }
+
     function updateSources() {
-        kterminal.update();
+        kterminal.update()
     }
 
     QMLTermWidget {
         id: kterminal
 
         property int textureResolutionScale: appSettings.lowResolutionFont ? devicePixelRatio : 1
-        property int margin: appSettings.margin / screenScaling
+        property int margin: appSettings.totalMargin / screenScaling
         property int totalWidth: Math.floor(parent.width / (screenScaling * fontWidth))
         property int totalHeight: Math.floor(parent.height / screenScaling)
 
@@ -143,7 +168,7 @@ Item{
                 var args = Utils.tokenizeCommandLine(appSettings.customCommand);
                 ksession.setShellProgram(args[0]);
                 ksession.setArgs(args.slice(1));
-            } else if (!defaultCmd && Qt.platform.os === "osx") {
+            } else if (!defaultCmd && appSettings.isMacOS) {
                 // OSX Requires the following default parameters for auto login.
                 ksession.setArgs(["-i", "-l"]);
             }
@@ -173,12 +198,12 @@ Item{
 
     Loader {
         id: menuLoader
-        sourceComponent: (Qt.platform.os === "osx" || appSettings.showMenubar ? shortContextMenu : fullContextMenu)
+        sourceComponent: (appSettings.isMacOS || appSettings.showMenubar ? shortContextMenu : fullContextMenu)
     }
     property alias contextmenu: menuLoader.item
 
-    MouseArea{
-        property real margin: appSettings.margin
+    MouseArea {
+        property real margin: appSettings.totalMargin
 
         acceptedButtons: Qt.LeftButton | Qt.MiddleButton | Qt.RightButton
         anchors.fill: parent
@@ -219,8 +244,8 @@ Item{
             var cc = Qt.size(0.5 - x, 0.5 - y);
             var distortion = (cc.height * cc.height + cc.width * cc.width) * appSettings.screenCurvature * appSettings.screenCurvatureSize;
 
-            return Qt.point((x - cc.width  * (1+distortion) * distortion) * kterminal.totalWidth,
-                           (y - cc.height * (1+distortion) * distortion) * kterminal.totalHeight)
+            return Qt.point((x - cc.width  * (1+distortion) * distortion) * (kterminal.totalWidth),
+                           (y - cc.height * (1+distortion) * distortion) * (kterminal.totalHeight))
         }
     }
     ShaderEffectSource{
@@ -250,9 +275,5 @@ Item{
         BurnInEffect {
             id: burnInEffect
         }
-
-        SlowBurnIn {
-            id: slowBurnInEffect
-        }
     }
 }

app/qml/SettingsAdvancedTab.qml

@@ -89,7 +89,7 @@ ColumnLayout {
                 }
             }
 
-            Label {
+            SizedLabel {
                 text: appSettings.fps !== 0 ? appSettings.fps : qsTr("Max")
             }
             Label {
@@ -109,7 +109,7 @@ ColumnLayout {
                     enabled = true
                 }
             }
-            Label {
+            SizedLabel {
                 text: Math.round(txtslider.value * 100) + "%"
             }
 
@@ -130,7 +130,7 @@ ColumnLayout {
                     enabled = true
                 }
             }
-            Label {
+            SizedLabel {
                 text: Math.round(bloomSlider.value * 100) + "%"
             }
 
@@ -151,15 +151,9 @@ ColumnLayout {
                     enabled = true
                 }
             }
-            Label {
+            SizedLabel {
                 text: Math.round(burnInSlider.value * 100) + "%"
             }
-            CheckBox {
-                Layout.columnSpan: 2
-                text: qsTr("Burnin optimization (Might display timing artifacts)")
-                checked: appSettings.useFastBurnIn
-                onCheckedChanged: appSettings.useFastBurnIn = checked
-            }
         }
     }
 }

app/qml/SettingsGeneralTab.qml

@@ -33,6 +33,7 @@ ColumnLayout {
                 Layout.fillWidth: true
                 Layout.fillHeight: true
                 model: appSettings.profilesList
+                clip: true
                 delegate: Rectangle {
                     width: label.width
                     height: label.height
@@ -206,12 +207,21 @@ ColumnLayout {
                 onValueChanged: appSettings._margin = value
                 value: appSettings._margin
             }
+            Label {
+                text: qsTr("Frame size")
+            }
+            SimpleSlider {
+                onValueChanged: appSettings._frameMargin = value
+                value: appSettings._frameMargin
+            }
             Label {
                 text: qsTr("Opacity")
+                visible: !appSettings.isMacOS
             }
             SimpleSlider {
                 onValueChanged: appSettings.windowOpacity = value
                 value: appSettings.windowOpacity
+                visible: !appSettings.isMacOS
             }
         }
     }

app/qml/SettingsTerminalTab.qml

@@ -41,7 +41,7 @@ ColumnLayout {
                 property string selectedElement: model[currentIndex]
 
                 Layout.fillWidth: true
-                model: [qsTr("Default"), qsTr("Scanlines"), qsTr("Pixels")]
+                model: [qsTr("Default"), qsTr("Scanlines"), qsTr("Pixels"), qsTr("Sub-Pixels")]
                 currentIndex: appSettings.rasterization
                 onCurrentIndexChanged: {
                     appSettings.rasterization = currentIndex
@@ -68,7 +68,10 @@ ColumnLayout {
                 }
                 Connections {
                     target: appSettings
-                    onTerminalFontChanged: fontChanger.updateIndex()
+
+                    onTerminalFontChanged: {
+                        fontChanger.updateIndex()
+                    }
                 }
                 Component.onCompleted: updateIndex()
             }

app/qml/SettingsWindow.qml

@@ -27,42 +27,49 @@ import QtQuick.Dialogs 1.1
 Window {
     id: settings_window
     title: qsTr("Settings")
-    width: 800
-    height: 600
+    width: 640
+    height: 640
 
     property int tabmargins: 15
 
-    TabBar {
-        id: bar
-        width: parent.width
-        TabButton {
-            text: qsTr("General")
-        }
-        TabButton {
-            text: qsTr("Terminal")
-        }
-        TabButton {
-            text: qsTr("Effects")
-        }
-        TabButton {
-            text: qsTr("Advanced")
-        }
-    }
+    Item {
+        anchors { fill: parent;  margins: tabmargins }
 
-    StackLayout {
-        anchors {
-            top: bar.bottom
-            left: parent.left
-            right: parent.right
-            bottom: parent.bottom
-            margins: tabmargins
+        TabBar {
+            id: bar
+            anchors { left: parent.left; right: parent.right; top: parent.top; }
+            TabButton {
+                text: qsTr("General")
+            }
+            TabButton {
+                text: qsTr("Terminal")
+            }
+            TabButton {
+                text: qsTr("Effects")
+            }
+            TabButton {
+                text: qsTr("Advanced")
+            }
         }
 
-        currentIndex: bar.currentIndex
+        Frame {
+            anchors {
+                top: bar.bottom
+                left: parent.left
+                right: parent.right
+                bottom: parent.bottom
+            }
 
-        SettingsGeneralTab { }
-        SettingsTerminalTab { }
-        SettingsEffectsTab { }
-        SettingsAdvancedTab { }
+            StackLayout {
+                anchors.fill: parent
+
+                currentIndex: bar.currentIndex
+
+                SettingsGeneralTab { }
+                SettingsTerminalTab { }
+                SettingsEffectsTab { }
+                SettingsAdvancedTab { }
+            }
+        }
     }
 }

app/qml/ShaderLibrary.qml

@@ -0,0 +1,91 @@
+import QtQuick 2.0
+
+QtObject {
+    property string rasterizationShader:
+        (appSettings.rasterization === appSettings.no_rasterization ? "
+            lowp vec3 applyRasterization(vec2 screenCoords, lowp vec3 texel, vec2 virtualResolution, float intensity) {
+                return texel;
+            }" : "") +
+
+        (appSettings.rasterization === appSettings.scanline_rasterization ? "
+            #define INTENSITY 0.30
+            #define BRIGHTBOOST 0.30
+
+            lowp vec3 applyRasterization(vec2 screenCoords, lowp vec3 texel, vec2 virtualResolution, float intensity) {
+                lowp vec3 pixelHigh = ((1.0 + BRIGHTBOOST) - (0.2 * texel)) * texel;
+                lowp vec3 pixelLow  = ((1.0 - INTENSITY) + (0.1 * texel)) * texel;
+
+                vec2 coords = fract(screenCoords * virtualResolution) * 2.0 - vec2(1.0);
+                lowp float mask = 1.0 - abs(coords.y);
+
+                lowp vec3 rasterizationColor = mix(pixelLow, pixelHigh, mask);
+                return mix(texel, rasterizationColor, intensity);
+            }" : "") +
+
+        (appSettings.rasterization === appSettings.pixel_rasterization ? "
+            #define INTENSITY 0.30
+            #define BRIGHTBOOST 0.30
+
+            lowp vec3 applyRasterization(vec2 screenCoords, lowp vec3 texel, vec2 virtualResolution, float intensity) {
+                lowp vec3 result = texel;
+
+                lowp vec3 pixelHigh = ((1.0 + BRIGHTBOOST) - (0.2 * texel)) * texel;
+                lowp vec3 pixelLow  = ((1.0 - INTENSITY) + (0.1 * texel)) * texel;
+
+                vec2 coords = fract(screenCoords * virtualResolution) * 2.0 - vec2(1.0);
+                coords = coords * coords;
+                lowp float mask = 1.0 - coords.x - coords.y;
+
+                lowp vec3 rasterizationColor = mix(pixelLow, pixelHigh, mask);
+                return mix(texel, rasterizationColor, intensity);
+            }" : "") +
+
+        (appSettings.rasterization === appSettings.subpixel_rasterization ? "
+            #define INTENSITY 0.30
+            #define BRIGHTBOOST 0.30
+            #define SUBPIXELS 3.0
+            const vec3 offsets = vec3(3.141592654) * vec3(1.0/2.0,1.0/2.0 - 2.0/3.0,1.0/2.0-4.0/3.0);
+
+            lowp vec3 applyRasterization(vec2 screenCoords, lowp vec3 texel, vec2 virtualResolution, float intensity) {
+                vec2 omega = vec2(3.141592654) * vec2(2.0) * virtualResolution;
+                vec2 angle = screenCoords * omega;
+                vec3 xfactors = (SUBPIXELS + sin(angle.x + offsets)) / (SUBPIXELS + 1.0);
+
+                lowp vec3 result = texel * xfactors;
+                lowp vec3 pixelHigh = ((1.0 + BRIGHTBOOST) - (0.2 * result)) * result;
+                lowp vec3 pixelLow  = ((1.0 - INTENSITY) + (0.1 * result)) * result;
+
+                vec2 coords = fract(screenCoords * virtualResolution) * 2.0 - vec2(1.0);
+                lowp float mask = 1.0 - abs(coords.y);
+
+                lowp vec3 rasterizationColor = mix(pixelLow, pixelHigh, mask);
+                return mix(texel, rasterizationColor, intensity);
+            }" : "") +
+
+        "\n\n"
+
+    property string min2: "
+        float min2(vec2 v) {
+            return min(v.x, v.y);
+        }\n\n"
+
+    property string rgb2grey: "
+        float rgb2grey(vec3 v) {
+            return dot(v, vec3(0.21, 0.72, 0.04));
+        }\n\n"
+
+    property string max2: "
+        float max2(vec2 v) {
+            return max(v.x, v.y);
+        }\n\n"
+
+    property string prod2: "
+        float prod2(vec2 v) {
+            return v.x * v.y;
+        }\n\n"
+
+    property string sum2: "
+        float sum2(vec2 v) {
+            return v.x + v.y;
+        }\n\n"
+}

app/qml/ShaderTerminal.qml

@@ -24,7 +24,6 @@ import QtGraphicalEffects 1.0
 import "utils.js" as Utils
 
 Item {
-    property SlowBurnIn slowBurnInEffect
     property ShaderEffectSource source
     property BurnInEffect burnInEffect
     property ShaderEffectSource bloomSource
@@ -38,11 +37,19 @@ Item {
 
     property real ambientLight: appSettings.ambientLight * 0.2
 
-    property size virtual_resolution
+    property size virtualResolution
+    property size screenResolution
+
+    property real _screenDensity: Math.min(
+        screenResolution.width / virtualResolution.width,
+        screenResolution.height / virtualResolution.height
+    )
 
      ShaderEffect {
          id: dynamicShader
 
+         property ShaderLibrary shaderLibrary: ShaderLibrary { }
+
          property ShaderEffectSource screenBuffer: frameBuffer
          property ShaderEffectSource burnInSource: burnInEffect.source
          property ShaderEffectSource frameSource: terminalFrameLoader.item
@@ -59,22 +66,24 @@ Item {
          property real glowingLine: appSettings.glowingLine * 0.2
 
          // Fast burnin properties
-         property real burnIn: appSettings.useFastBurnIn ? appSettings.burnIn : 0
+         property real burnIn: appSettings.burnIn
          property real burnInLastUpdate: burnInEffect.lastUpdate
          property real burnInTime: burnInEffect.burnInFadeTime
 
-         // Slow burnin properties
-         property real slowBurnIn: appSettings.useFastBurnIn ? 0 : appSettings.burnIn
-         property ShaderEffectSource slowBurnInSource: slowBurnInEffect.source
-
          property real jitter: appSettings.jitter
          property size jitterDisplacement: Qt.size(0.007 * jitter, 0.002 * jitter)
          property real shadowLength: 0.25 * screenCurvature * Utils.lint(0.50, 1.5, ambientLight)
          property real staticNoise: appSettings.staticNoise
-         property size scaleNoiseSize: Qt.size((width) / (noiseTexture.width * appSettings.windowScaling * appSettings.totalFontScaling),
-                                               (height) / (noiseTexture.height * appSettings.windowScaling * appSettings.totalFontScaling))
+         property size scaleNoiseSize: Qt.size((width * 0.75) / (noiseTexture.width * appSettings.windowScaling * appSettings.totalFontScaling),
+                                               (height * 0.75) / (noiseTexture.height * appSettings.windowScaling * appSettings.totalFontScaling))
 
-         property size virtual_resolution: parent.virtual_resolution
+         property size virtualResolution: parent.virtualResolution
+
+         // Rasterization might display oversamping issues if virtual resolution is close to physical display resolution.
+         // We progressively disable rasterization from 4x up to 2x resolution.
+         property real rasterizationIntensity: Utils.smoothstep(2.0, 4.0, _screenDensity)
+
+         property real displayTerminalFrame: appSettings._frameMargin > 0 || appSettings.screenCurvature > 0
 
          property real time: timeManager.time
          property ShaderEffectSource noiseSource: noiseShaderSource
@@ -164,23 +173,22 @@ Item {
              uniform highp vec4 backgroundColor;
              uniform lowp float shadowLength;
 
-             uniform highp vec2 virtual_resolution;" +
+             uniform highp vec2 virtualResolution;
+             uniform lowp float rasterizationIntensity;\n" +
 
              (burnIn !== 0 ? "
                  uniform sampler2D burnInSource;
                  uniform highp float burnInLastUpdate;
                  uniform highp float burnInTime;" : "") +
-             (slowBurnIn !== 0 ? "
-                 uniform sampler2D slowBurnInSource;" : "") +
              (staticNoise !== 0 ? "
                  uniform highp float staticNoise;" : "") +
-             (((staticNoise !== 0 || jitter !== 0)
-               ||(fallBack && (flickering || horizontalSync))) ? "
+             (((staticNoise !== 0 || jitter !== 0) ||(fallBack && (flickering || horizontalSync))) ? "
                  uniform lowp sampler2D noiseSource;
                  uniform highp vec2 scaleNoiseSize;" : "") +
-             (screenCurvature !== 0 ? "
-                 uniform highp float screenCurvature;
+             (displayTerminalFrame ? "
                  uniform lowp sampler2D frameSource;" : "") +
+             (screenCurvature !== 0 ? "
+                 uniform highp float screenCurvature;" : "") +
              (glowingLine !== 0 ? "
                  uniform highp float glowingLine;" : "") +
              (chromaColor !== 0 ? "
@@ -203,17 +211,14 @@ Item {
 
              (glowingLine !== 0 ? "
                  float randomPass(vec2 coords){
-                     return fract(smoothstep(-120.0, 0.0, coords.y - (virtual_resolution.y + 120.0) * fract(time * 0.00015)));
+                     return fract(smoothstep(-120.0, 0.0, coords.y - (virtualResolution.y + 120.0) * fract(time * 0.00015)));
                  }" : "") +
 
-             "float min2(vec2 v) {
-                 return min(v.x, v.y);
-             }
-
-             float rgb2grey(vec3 v){
-                 return dot(v, vec3(0.21, 0.72, 0.04));
-             }
+             shaderLibrary.min2 +
+             shaderLibrary.rgb2grey +
+             shaderLibrary.rasterizationShader +
 
+             "
              float isInScreen(vec2 v) {
                  return min2(step(0.0, v) - step(1.0, v));
              }
@@ -291,24 +296,21 @@ Item {
                      color += noiseVal * noise * (1.0 - distance * 1.3);" : "") +
 
                  (glowingLine !== 0 ? "
-                     color += randomPass(coords * virtual_resolution) * glowingLine;" : "") +
+                     color += randomPass(coords * virtualResolution) * glowingLine;" : "") +
 
                  "vec3 txt_color = texture2D(screenBuffer, txt_coords).rgb;" +
 
                  (burnIn !== 0 ? "
                      vec4 txt_blur = texture2D(burnInSource, staticCoords);
-                     float blurDecay = clamp((time - burnInLastUpdate) * burnInTime, 0.0, 1.0);
-                     vec3 burnInColor = 0.65 * (txt_blur.rgb - vec3(blurDecay));
+                     float blurDecay = clamp(pow(0.5, burnInTime * (time - burnInLastUpdate)), 0.0, 1.0);
+                     vec3 burnInColor = txt_blur.rgb * vec3(blurDecay);
                      txt_color = max(txt_color, convertWithChroma(burnInColor));"
                  : "") +
 
-                 (slowBurnIn !== 0 ? "
-                     vec4 txt_blur = texture2D(slowBurnInSource, staticCoords);
-                     txt_color = max(txt_color, convertWithChroma(txt_blur.rgb * txt_blur.a));
-                 " : "") +
-
                   "txt_color += fontColor.rgb * vec3(color);" +
 
+                  "txt_color = applyRasterization(staticCoords, txt_color, virtualResolution, rasterizationIntensity);\n" +
+
                  "vec3 finalColor = txt_color;" +
 
                  (flickering !== 0 ? "
@@ -317,7 +319,7 @@ Item {
                  (ambientLight !== 0 ? "
                      finalColor += vec3(ambientLight) * (1.0 - distance) * (1.0 - distance);" : "") +
 
-                 (screenCurvature !== 0 ?
+                 (displayTerminalFrame ?
                     "vec4 frameColor = texture2D(frameSource, qt_TexCoord0);
                      finalColor = mix(finalColor, frameColor.rgb, frameColor.a);"
                  : "") +
@@ -340,7 +342,7 @@ Item {
      Loader {
          id: terminalFrameLoader
 
-         active: screenCurvature !== 0
+         active: dynamicShader.displayTerminalFrame
 
          width: staticShader.width
          height: staticShader.height
@@ -352,7 +354,7 @@ Item {
              visible: false
              format: ShaderEffectSource.RGBA
 
-             NewTerminalFrame {
+             TerminalFrame {
                  id: terminalFrame
                  blending: false
                  anchors.fill: parent
@@ -360,6 +362,10 @@ Item {
          }
      }
 
+     ShaderLibrary {
+         id: shaderLibrary
+     }
+
      ShaderEffect {
          id: staticShader
 
@@ -385,7 +391,7 @@ Item {
 
          property real ambientLight: parent.ambientLight
 
-         property size virtual_resolution: parent.virtual_resolution
+         property size virtualResolution: parent.virtualResolution
 
          blending: false
          visible: false
@@ -408,7 +414,7 @@ Item {
              uniform highp vec4 backgroundColor;
              uniform lowp float screen_brightness;
 
-             uniform highp vec2 virtual_resolution;" +
+             uniform highp vec2 virtualResolution;" +
 
              (bloom !== 0 ? "
                  uniform highp sampler2D bloomSource;
@@ -426,36 +432,9 @@ Item {
              (ambientLight !== 0 ? "
                  uniform lowp float ambientLight;" : "") +
 
-             "highp float getScanlineIntensity(vec2 coords) {
-                 float result = 1.0;" +
-
-                (appSettings.rasterization != appSettings.no_rasterization ?
-                    "float val = 0.0;
-                     vec2 rasterizationCoords = fract(coords * virtual_resolution);
-                     val += smoothstep(0.0, 0.5, rasterizationCoords.y);
-                     val -= smoothstep(0.5, 1.0, rasterizationCoords.y);
-                     result *= mix(0.5, 1.0, val);" : "") +
-
-                (appSettings.rasterization == appSettings.pixel_rasterization ?
-                    "val = 0.0;
-                     val += smoothstep(0.0, 0.5, rasterizationCoords.x);
-                     val -= smoothstep(0.5, 1.0, rasterizationCoords.x);
-                     result *= mix(0.5, 1.0, val);" : "") + "
-
-                return result;
-             }
-
-             float min2(vec2 v) {
-                 return min(v.x, v.y);
-             }
-
-             float sum2(vec2 v) {
-                 return v.x + v.y;
-             }
-
-             float rgb2grey(vec3 v){
-                 return dot(v, vec3(0.21, 0.72, 0.04));
-             }" +
+             shaderLibrary.min2 +
+             shaderLibrary.sum2 +
+             shaderLibrary.rgb2grey +
 
              "vec3 convertWithChroma(vec3 inColor) {
                 vec3 outColor = inColor;" +
@@ -468,6 +447,7 @@ Item {
              "  return outColor;
              }" +
 
+             shaderLibrary.rasterizationShader +
 
              "void main() {" +
                  "vec2 cc = vec2(0.5) - qt_TexCoord0;" +
@@ -490,8 +470,6 @@ Item {
                      txt_color.b = leftColor.b * 0.30 + rightColor.b * 0.10 + txt_color.b * 0.60;
                  " : "") +
 
-                  "txt_color *= getScanlineIntensity(txt_coords);" +
-
                   "txt_color += vec3(0.0001);" +
                   "float greyscale_color = rgb2grey(txt_color);" +
 

app/qml/SlowBurnIn.qml

@@ -1,140 +0,0 @@
-/*******************************************************************************
-* Copyright (c) 2013-2021 "Filippo Scognamiglio"
-* https://github.com/Swordfish90/cool-retro-term
-*
-* This file is part of cool-retro-term.
-*
-* cool-retro-term 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 3 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, see <http://www.gnu.org/licenses/>.
-*******************************************************************************/
-
-import QtQuick 2.0
-
-import "utils.js" as Utils
-
-Loader {
-    property ShaderEffectSource source: item ? item.source : null
-
-    active: !appSettings.useFastBurnIn && appSettings.burnIn !== 0
-    anchors.fill: parent
-
-    sourceComponent: Item {
-        property alias source: burnInSourceEffect
-        property int burnInScaling: scaleTexture * appSettings.burnInQuality
-
-        ShaderEffectSource {
-            property bool updateBurnIn: false
-            property real burnIn: appSettings.burnIn
-            property real fps: appSettings.fps !== 0 ? appSettings.fps : 60
-            property real burnInFadeTime: Utils.lint(minBurnInFadeTime, maxBurnInFadeTime, burnIn)
-            property real burnInCoefficient: 1000 / (fps * burnInFadeTime)
-            property real minBurnInFadeTime: appSettings.minBurnInFadeTime
-            property real maxBurnInFadeTime: appSettings.maxBurnInFadeTime
-
-            id: burnInSourceEffect
-
-            anchors.fill: parent
-
-            sourceItem: burnInEffect
-            recursive: true
-            live: false
-            hideSource: true
-            wrapMode: kterminalSource.wrapMode
-
-            visible: false
-
-            function restartBlurSource(){
-                livetimer.restart();
-            }
-
-            // This updates the burnin synched with the timer.
-            Connections {
-                target: burnInSourceEffect.updateBurnIn ? timeManager : null
-                ignoreUnknownSignals: false
-                onTimeChanged: {
-                    burnInSourceEffect.scheduleUpdate();
-                }
-            }
-
-            Timer {
-                id: livetimer
-
-                // The interval assumes 60 fps. This is the time needed burnout a white pixel.
-                // We multiply 1.1 to have a little bit of margin over the theoretical value.
-                // This solution is not extremely clean, but it's probably the best to avoid measuring fps.
-
-                interval: burnInSourceEffect.burnInFadeTime * 1.1
-                running: true
-                onTriggered: burnInSourceEffect.updateBurnIn = false;
-            }
-            Connections {
-                target: kterminal
-                onImagePainted:{
-                    burnInSourceEffect.scheduleUpdate();
-                    burnInSourceEffect.updateBurnIn = true;
-                    livetimer.restart();
-                }
-            }
-            // Restart blurred source settings change.
-            Connections {
-                target: appSettings
-                onBurnInChanged: burnInSourceEffect.restartBlurSource();
-                onTerminalFontChanged: burnInSourceEffect.restartBlurSource();
-                onRasterizationChanged: burnInSourceEffect.restartBlurSource();
-                onBurnInQualityChanged: burnInSourceEffect.restartBlurSource();
-            }
-            Connections {
-                target: kterminalScrollbar
-                onOpacityChanged: burnInSourceEffect.restartBlurSource();
-            }
-
-            ShaderEffect {
-                id: burnInEffect
-
-                property variant txt_source: kterminalSource
-                property variant blurredSource: burnInSourceEffect
-                property real burnInCoefficient: burnInSourceEffect.burnInCoefficient
-
-                anchors.fill: parent
-                blending: false
-
-                fragmentShader:
-                    "#ifdef GL_ES
-                        precision mediump float;
-                    #endif\n" +
-
-                    "uniform lowp float qt_Opacity;" +
-                    "uniform lowp sampler2D txt_source;" +
-
-                    "varying highp vec2 qt_TexCoord0;
-                     uniform lowp sampler2D blurredSource;
-                     uniform highp float burnInCoefficient;" +
-
-                    "float max3(vec3 v) {
-                         return max (max (v.x, v.y), v.z);
-                    }" +
-
-                    "void main() {" +
-                        "vec2 coords = qt_TexCoord0;" +
-                        "vec3 origColor = texture2D(txt_source, coords).rgb;" +
-                        "vec3 blur_color = texture2D(blurredSource, coords).rgb - vec3(burnInCoefficient);" +
-                        "vec3 color = min(origColor + blur_color, max(origColor, blur_color));" +
-
-                        "gl_FragColor = vec4(color, max3(color - origColor));" +
-                    "}"
-
-                onStatusChanged: if (log) console.log(log) //Print warning messages
-            }
-        }
-    }
-}

app/qml/TerminalContainer.qml

@@ -26,13 +26,18 @@ ShaderTerminal {
     property alias title: terminal.title
     property alias terminalSize: terminal.terminalSize
 
+    property real devicePixelRatio: terminalWindow.screen.devicePixelRatio
+
     id: mainShader
     opacity: appSettings.windowOpacity * 0.3 + 0.7
 
     source: terminal.mainSource
     burnInEffect: terminal.burnInEffect
-    slowBurnInEffect: terminal.slowBurnInEffect
-    virtual_resolution: terminal.virtualResolution
+    virtualResolution: terminal.virtualResolution
+    screenResolution: Qt.size(
+        terminalWindow.width * devicePixelRatio * appSettings.windowScaling,
+        terminalWindow.height * devicePixelRatio * appSettings.windowScaling
+    )
 
     TimeManager {
         id: timeManager

app/qml/TerminalFrame.qml

@@ -22,7 +22,7 @@ import QtQuick 2.0
 import "utils.js" as Utils
 
 ShaderEffect {
-    property color _staticFrameColor: "#ffffff"
+    property color _staticFrameColor: "#fff"
     property color _backgroundColor: appSettings.backgroundColor
     property color _fontColor: appSettings.fontColor
     property color _lightColor: Utils.mix(_fontColor, _backgroundColor, 0.2)
@@ -30,9 +30,19 @@ ShaderEffect {
 
     property color frameColor: Utils.mix(_staticFrameColor, _lightColor, _ambientLight)
     property real screenCurvature: appSettings.screenCurvature * appSettings.screenCurvatureSize
-    property real shadowLength: 0.5 * screenCurvature * Utils.lint(0.50, 1.5, _ambientLight)
 
-    property size aadelta: Qt.size(1.0 / width, 1.0 / height)
+    // Coefficient of the log curve used to approximate shadowing
+    property real screenShadowCoeff: Utils.lint(20.0, 10.0, _ambientLight)
+    property real frameShadowCoeff: Utils.lint(20.0, 10.0, _ambientLight)
+
+    property size margin: Qt.size(
+        appSettings.frameMargin / width * appSettings.windowScaling,
+        appSettings.frameMargin / height * appSettings.windowScaling
+    )
+
+    ShaderLibrary {
+        id: shaderLibrary
+    }
 
     fragmentShader: "
         #ifdef GL_ES
@@ -40,10 +50,11 @@ ShaderEffect {
         #endif
 
         uniform lowp float screenCurvature;
-        uniform lowp float shadowLength;
+        uniform lowp float screenShadowCoeff;
+        uniform lowp float frameShadowCoeff;
         uniform highp float qt_Opacity;
         uniform lowp vec4 frameColor;
-        uniform mediump vec2 aadelta;
+        uniform mediump vec2 margin;
 
         varying highp vec2 qt_TexCoord0;
 
@@ -52,42 +63,38 @@ ShaderEffect {
             float dist = dot(cc, cc) * screenCurvature;
             return (coords + cc * (1.0 + dist) * dist);
         }
+        " +
 
-        float max2(vec2 v) {
-            return max(v.x, v.y);
+        shaderLibrary.max2 +
+        shaderLibrary.min2 +
+        shaderLibrary.prod2 +
+        shaderLibrary.sum2 +
+
+        "
+
+        vec2 positiveLog(vec2 x) {
+            return clamp(log(x), vec2(0.0), vec2(100.0));
         }
 
-        float min2(vec2 v) {
-            return min(v.x, v.y);
-        }
-
-        float prod2(vec2 v) {
-            return v.x * v.y;
-        }
-
-        float sum2(vec2 v) {
-            return v.x + v.y;
-        }
-
-        void main(){
+        void main() {
             vec2 staticCoords = qt_TexCoord0;
-            vec2 coords = distortCoordinates(staticCoords);
+            vec2 coords = distortCoordinates(staticCoords) * (vec2(1.0) + margin * 2.0) - margin;
 
-            vec3 color = vec3(0.0);
+            vec2 vignetteCoords = staticCoords * (1.0 - staticCoords.yx);
+            float vignette = pow(prod2(vignetteCoords) * 15.0, 0.25);
+
+            vec3 color = frameColor.rgb * vec3(1.0 - vignette);
             float alpha = 0.0;
 
-            float outShadowLength = shadowLength;
-            float inShadowLength = shadowLength * 0.5;
+            float frameShadow = max2(positiveLog(-coords * frameShadowCoeff + vec2(1.0)) + positiveLog(coords * frameShadowCoeff - (vec2(frameShadowCoeff) - vec2(1.0))));
+            frameShadow = max(sqrt(frameShadow), 0.0);
+            color *= frameShadow;
+            alpha = sum2(1.0 - step(vec2(0.0), coords) + step(vec2(1.0), coords));
+            alpha = clamp(alpha, 0.0, 1.0);
+            alpha *= mix(1.0, 0.9, frameShadow);
 
-            float outShadow = max2(1.0 - smoothstep(vec2(-outShadowLength), vec2(0.0), coords) + smoothstep(vec2(1.0), vec2(1.0 + outShadowLength), coords));
-            outShadow = clamp(sqrt(outShadow), 0.0, 1.0);
-            color += frameColor.rgb * outShadow;
-            alpha = sum2(1.0 - smoothstep(vec2(0.0), aadelta, coords) + smoothstep(vec2(1.0) - aadelta, vec2(1.0), coords));
-            alpha = clamp(alpha, 0.0, 1.0) * mix(1.0, 0.9, outShadow);
-
-            float inShadow = 1.0 - prod2(smoothstep(0.0, inShadowLength, coords) - smoothstep(1.0 - inShadowLength, 1.0, coords));
-            inShadow = 0.5 * inShadow * inShadow;
-            alpha = max(alpha, inShadow);
+            float screenShadow = 1.0 - prod2(positiveLog(coords * screenShadowCoeff + vec2(1.0)) * positiveLog(-coords * screenShadowCoeff + vec2(screenShadowCoeff + 1.0)));
+            alpha = max(0.8 * screenShadow, alpha);
 
             gl_FragColor = vec4(color * alpha, alpha);
         }

app/qml/main.qml

@@ -53,20 +53,30 @@ ApplicationWindow {
     property bool fullscreen: appSettings.fullscreen
     onFullscreenChanged: visibility = (fullscreen ? Window.FullScreen : Window.Windowed)
 
-    menuBar: WindowMenu {
-        id: mainMenu
-        visible: (Qt.platform.os === "osx" || appSettings.showMenubar)
+    menuBar: qtquickMenuLoader.item
+
+    Loader {
+        id: qtquickMenuLoader
+        active: !appSettings.isMacOS && appSettings.showMenubar
+        sourceComponent: WindowMenu { }
+    }
+
+    Loader {
+        id: globalMenuLoader
+        active: appSettings.isMacOS
+        sourceComponent: OSXMenu { }
     }
 
     property string wintitle: appSettings.wintitle
 
     color: "#00000000"
+
     title: terminalContainer.title || qsTr(appSettings.wintitle)
 
     Action {
         id: showMenubarAction
         text: qsTr("Show Menubar")
-        enabled: Qt.platform.os !== "osx"
+        enabled: !appSettings.isMacOS
         shortcut: "Ctrl+Shift+M"
         checkable: true
         checked: appSettings.showMenubar
@@ -75,7 +85,7 @@ ApplicationWindow {
     Action {
         id: fullscreenAction
         text: qsTr("Fullscreen")
-        enabled: Qt.platform.os !== "osx"
+        enabled: !appSettings.isMacOS
         shortcut: "Alt+F11"
         onTriggered: appSettings.fullscreen = !appSettings.fullscreen
         checkable: true
@@ -154,7 +164,7 @@ ApplicationWindow {
     onClosing: {
         // OSX Since we are currently supporting only one window
         // quit the application when it is closed.
-        if (Qt.platform.os === "osx")
+        if (appSettings.isMacOS)
             Qt.quit()
     }
 }

app/qml/menus/OSXMenu.qml

@@ -0,0 +1,89 @@
+/*******************************************************************************
+* Copyright (c) 2013-2021 "Filippo Scognamiglio"
+* https://github.com/Swordfish90/cool-retro-term
+*
+* This file is part of cool-retro-term.
+*
+* cool-retro-term 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 3 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, see <http://www.gnu.org/licenses/>.
+*******************************************************************************/
+
+import QtQuick 2.3
+import Qt.labs.platform 1.1
+
+MenuBar {
+    id: defaultMenuBar
+
+    Menu {
+        title: qsTr("File")
+        MenuItem {
+            text: quitAction.text
+            onTriggered: quitAction.trigger()
+        }
+    }
+    Menu {
+        title: qsTr("Edit")
+        MenuItem {
+            text: copyAction.text
+            shortcut: "Meta+C"
+            onTriggered: copyAction.trigger()
+        }
+        MenuItem {
+            text: pasteAction.text
+            shortcut: "Meta+V"
+            onTriggered: pasteAction.trigger()
+        }
+        MenuSeparator {}
+        MenuItem {
+            text: showsettingsAction.text
+            shortcut: showsettingsAction.shortcut
+            onTriggered: showsettingsAction.trigger()
+        }
+    }
+    Menu {
+        title: qsTr("View")
+        MenuItem {
+            text: zoomIn.text
+            shortcut: "Meta++"
+            onTriggered: zoomIn.trigger()
+        }
+        MenuItem {
+            text: zoomOut.text
+            shortcut: "Meta+-"
+            onTriggered: zoomOut.trigger()
+        }
+    }
+    Menu {
+        id: profilesMenu
+        title: qsTr("Profiles")
+        Instantiator {
+            model: appSettings.profilesList
+            delegate: MenuItem {
+                text: model.text
+                onTriggered: {
+                    appSettings.loadProfileString(obj_string)
+                    appSettings.handleFontChanged()
+                }
+            }
+            onObjectAdded: profilesMenu.insertItem(index, object)
+            onObjectRemoved: profilesMenu.removeItem(object)
+        }
+    }
+    Menu {
+        title: qsTr("Help")
+        MenuItem {
+            text: showAboutAction.text
+            onTriggered: showAboutAction.trigger()
+        }
+    }
+}

app/qml/resources.qrc

@@ -19,7 +19,7 @@
         <file>SettingsTerminalTab.qml</file>
         <file>FontScanlines.qml</file>
         <file>fonts/1977-apple2/PrintChar21.ttf</file>
-        <file>fonts/1971-ibm-3278/3270Medium.ttf</file>
+        <file>fonts/1971-ibm-3278/3270-Regular.ttf</file>
         <file>Storage.qml</file>
         <file>SettingsAdvancedTab.qml</file>
         <file>TerminalContainer.qml</file>
@@ -40,10 +40,11 @@
         <file>fonts/1977-commodore-pet/PetMe.ttf</file>
         <file>BurnInEffect.qml</file>
         <file>fonts/modern-terminus/TerminusTTF-4.46.0.ttf</file>
-        <file>NewTerminalFrame.qml</file>
-        <file>SlowBurnIn.qml</file>
+        <file>TerminalFrame.qml</file>
         <file>menus/WindowMenu.qml</file>
         <file>menus/FullContextMenu.qml</file>
         <file>menus/ShortContextMenu.qml</file>
+        <file>ShaderLibrary.qml</file>
+        <file>menus/OSXMenu.qml</file>
     </qresource>
 </RCC>

app/qml/utils.js

@@ -31,13 +31,18 @@ function lint(a, b, t) {
     return (1 - t) * a + (t) * b;
 }
 
-function mix(c1, c2, alpha){
+function mix(c1, c2, alpha) {
     return Qt.rgba(c1.r * alpha + c2.r * (1-alpha),
                    c1.g * alpha + c2.g * (1-alpha),
                    c1.b * alpha + c2.b * (1-alpha),
                    c1.a * alpha + c2.a * (1-alpha))
 }
 
+function smoothstep(min, max, value) {
+    let x = Math.max(0, Math.min(1, (value - min) / (max - min)));
+    return x * x * (3 - 2 * x);
+}
+
 function strToColor(s){
     var r = parseInt(s.substring(1,3), 16) / 256;
     var g = parseInt(s.substring(3,5), 16) / 256;