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Code Issues Releases Wiki Activity

Reduce minimum scaling value and fix aliasing issues with small fonts and rasterization.

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This commit is contained in:
Filippo Scognamiglio
2015-01-20 00:57:23 +01:00
parent 32f7923652
commit 2bc88768b6
4 changed files with 30 additions and 8 deletions
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11
app/qml/ApplicationSettings.qml
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@@ -26,7 +26,12 @@ import "utils.js" as Utils
QtObject{
property string version: "1.0.0 RC1"
// GENERAL SETTINGS ///////////////////////////////////////////////////
// STATIC CONSTANTS ////////////////////////////////////////////////////////
readonly property real minimumFontScaling: 0.25
readonly property real maximumFontScaling: 2.50
// GENERAL SETTINGS ///////////////////////////////////////////////////////
property bool fullscreen: false
property bool showMenubar: true
@@ -114,12 +119,12 @@ QtObject{
}
function incrementScaling(){
fontScaling = Math.min(fontScaling + 0.05, 2.50);
fontScaling = Math.min(fontScaling + 0.05, maximumFontScaling);
handleFontChanged();
}
function decrementScaling(){
fontScaling = Math.max(fontScaling - 0.05, 0.50);
fontScaling = Math.max(fontScaling - 0.05, minimumFontScaling);
handleFontChanged();
}

4
app/qml/SettingsTerminalTab.qml
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@@ -66,8 +66,8 @@ Tab{
stepSize: 0.05
enabled: false // Another trick to fix initial bad behavior.
Component.onCompleted: {
minimumValue = 0.5;
maximumValue = 2.5;
minimumValue = appSettings.minimumFontScaling;
maximumValue = appSettings.maximumFontScaling;
value = appSettings.fontScaling;
enabled = true;
}

15
app/qml/ShaderTerminal.qml
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@@ -21,6 +21,8 @@
import QtQuick 2.2
import QtGraphicalEffects 1.0
import "utils.js" as Utils
ShaderEffect {
property ShaderEffectSource source
property ShaderEffectSource blurredSource
@@ -56,6 +58,12 @@ ShaderEffect {
property real screen_brightness: appSettings.brightness * 1.5 + 0.5
// This is the average value of the abs(sin) function. Needed to avoid aliasing.
readonly property real absSinAvg: 0.63661828335466886
property size rasterizationSmooth: Qt.size(
Utils.clamp(2.0 * virtual_resolution.width / width, 0.0, 1.0),
Utils.clamp(2.0 * virtual_resolution.height / height, 0.0, 1.0))
property real dispX
property real dispY
property size virtual_resolution
@@ -153,6 +161,7 @@ ShaderEffect {
uniform lowp float screen_brightness;
uniform highp vec2 virtual_resolution;
uniform highp vec2 rasterizationSmooth;
uniform highp float dispX;
uniform highp float dispY;" +
@@ -198,9 +207,11 @@ ShaderEffect {
highp float result = 1.0;" +
(appSettings.rasterization != appSettings.no_rasterization ?
"result *= abs(sin(coords.y * virtual_resolution.y * "+Math.PI+"));" : "") +
"float val = abs(sin(coords.y * virtual_resolution.y * "+Math.PI+"));
result *= mix(val, " + absSinAvg + ", rasterizationSmooth.y);" : "") +
(appSettings.rasterization == appSettings.pixel_rasterization ?
"result *= abs(sin(coords.x * virtual_resolution.x * "+Math.PI+"));" : "") + "
"val = abs(sin(coords.x * virtual_resolution.x * "+Math.PI+"));
result *= mix(val, " + absSinAvg + ", rasterizationSmooth.x);" : "") + "
return result;
}

8
app/qml/utils.js
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@@ -1,5 +1,11 @@
.pragma library
function clamp(x, min, max) {
if (x <= min)
return min;
if (x >= max)
return max;
return x;
}
function lint(a, b, t) {
return (1 - t) * a + (t) * b;
}