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Unload burnin effect when not in use.

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This commit is contained in:
Filippo Scognamiglio 2018-11-08 18:21:33 +01:00
parent 92e82c203f
commit 2ec21f5eba
1 changed files with 89 additions and 79 deletions
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168
app/qml/BurnInEffect.qml
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@ -2,10 +2,10 @@ import QtQuick 2.0
import "utils.js" as Utils
Item {
Loader {
id: burnInEffect
readonly property alias source: burnInEffectSource
property ShaderEffectSource source: item ? item.source : null
property real lastUpdate: 0
property real prevLastUpdate: 0
@ -16,10 +16,12 @@ Item {
property real _minBurnInFadeTime: 160
property real _maxBurnInFadeTime: 1600
active: appSettings.burnIn !== 0
function completelyUpdate() {
prevLastUpdate = lastUpdate;
lastUpdate = timeManager.time;
burnInEffectSource.scheduleUpdate();
item.source.scheduleUpdate();
}
function restartBlurSource(){
@ -28,40 +30,8 @@ Item {
completelyUpdate()
}
ShaderEffectSource {
id: burnInEffectSource
sourceItem: burnInShaderEffect
live: false
recursive: true
hideSource: true
wrapMode: kterminalSource.wrapMode
format: ShaderEffectSource.RGBA
visible: false
Connections {
target: kterminal
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: burnInEffect.restartBlurSource()
}
}
ShaderEffect {
id: burnInShaderEffect
sourceComponent: Item {
property alias source: burnInEffectSource
property int burnInScaling: scaleTexture * appSettings.burnInQuality
@ -73,54 +43,94 @@ Item {
? kterminal.height * Math.max(1, burnInScaling)
: kterminal.height * scaleTexture * appSettings.burnInQuality
property variant txt_source: kterminalSource
property variant burnInSource: burnInEffectSource
property real burnInTime: burnInFadeTime
property alias lastUpdate: burnInEffect.lastUpdate
property alias prevLastUpdate: burnInEffect.prevLastUpdate
ShaderEffectSource {
id: burnInEffectSource
blending: false
anchors.fill: parent
fragmentShader:
"#ifdef GL_ES
precision mediump float;
#endif\n" +
sourceItem: burnInShaderEffect
live: false
recursive: true
hideSource: true
wrapMode: kterminalSource.wrapMode
"uniform lowp float qt_Opacity;" +
"uniform lowp sampler2D txt_source;" +
format: ShaderEffectSource.RGBA
"varying highp vec2 qt_TexCoord0;
visible: false
uniform lowp sampler2D burnInSource;
uniform highp float burnInTime;
uniform highp float lastUpdate;
uniform highp float prevLastUpdate;" +
"float max3(vec3 v) {
return max (max (v.x, v.y), v.z);
}" +
"void main() {
vec2 coords = qt_TexCoord0;
vec3 txtColor = texture2D(txt_source, coords).rgb * 0.70;
vec4 accColor = texture2D(burnInSource, coords);
float prevMask = accColor.a;
float currMask = 1.0 - max3(txtColor);
highp float blurDecay = prevMask * clamp((lastUpdate - prevLastUpdate) * burnInTime, 0.0, 1.0);
vec3 blurColor = accColor.rgb - vec3(blurDecay);
blurColor = clamp(blurColor, vec3(0.0), vec3(1.0));
vec3 color = max(blurColor, txtColor);
gl_FragColor = vec4(color, currMask);
Connections {
target: kterminal
onImagePainted: completelyUpdate()
}
// Restart blurred source settings change.
Connections{
target: appSettings
onBurnInChanged: burnInEffect.restartBlurSource();
onTerminalFontChanged: burnInEffect.restartBlurSource();
onRasterizationChanged: burnInEffect.restartBlurSource();
onBurnInQualityChanged: burnInEffect.restartBlurSource();
}
"
onStatusChanged: if (log) console.log(log) //Print warning messages
Connections {
target: kterminalScrollbar
onOpacityChanged: burnInEffect.restartBlurSource()
}
}
ShaderEffect {
id: burnInShaderEffect
property variant txt_source: kterminalSource
property variant burnInSource: burnInEffectSource
property real burnInTime: burnInFadeTime
property real lastUpdate: burnInEffect.lastUpdate
property real prevLastUpdate: burnInEffect.prevLastUpdate
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 burnInSource;
uniform highp float burnInTime;
uniform highp float lastUpdate;
uniform highp float prevLastUpdate;" +
"float max3(vec3 v) {
return max (max (v.x, v.y), v.z);
}" +
"void main() {
vec2 coords = qt_TexCoord0;
vec3 txtColor = texture2D(txt_source, coords).rgb * 0.5;
vec4 accColor = texture2D(burnInSource, coords);
float prevMask = accColor.a;
float currMask = 1.0 - max3(txtColor);
highp float blurDecay = prevMask * clamp((lastUpdate - prevLastUpdate) * burnInTime, 0.0, 1.0);
vec3 blurColor = accColor.rgb - vec3(blurDecay);
blurColor = clamp(blurColor, vec3(0.0), vec3(1.0));
vec3 color = max(blurColor, txtColor);
gl_FragColor = vec4(color, currMask);
}
"
onStatusChanged: if (log) console.log(log) //Print warning messages
}
}
}