332 lines
9.4 KiB
QML
332 lines
9.4 KiB
QML
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2017 The Qt Company Ltd.
|
|
** Contact: https://www.qt.io/licensing/
|
|
**
|
|
** This file is part of the Qt Graphical Effects module.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
|
** Commercial License Usage
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
** and conditions see https://www.qt.io/terms-conditions. For further
|
|
** information use the contact form at https://www.qt.io/contact-us.
|
|
**
|
|
** GNU Lesser General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU Lesser
|
|
** General Public License version 3 as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.LGPL3 included in the
|
|
** packaging of this file. Please review the following information to
|
|
** ensure the GNU Lesser General Public License version 3 requirements
|
|
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
|
|
**
|
|
** GNU General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
** General Public License version 2.0 or (at your option) the GNU General
|
|
** Public license version 3 or any later version approved by the KDE Free
|
|
** Qt Foundation. The licenses are as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
|
|
** included in the packaging of this file. Please review the following
|
|
** information to ensure the GNU General Public License requirements will
|
|
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
|
|
** https://www.gnu.org/licenses/gpl-3.0.html.
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
import QtQuick 2.12
|
|
import QtGraphicalEffects.private 1.12
|
|
|
|
Item {
|
|
id: rootItem
|
|
property variant source
|
|
property real spread: 0.0
|
|
property real blur: 0.0
|
|
property color color: "white"
|
|
property bool transparentBorder: false
|
|
property bool cached: false
|
|
|
|
SourceProxy {
|
|
id: sourceProxy
|
|
input: rootItem.source
|
|
}
|
|
|
|
ShaderEffectSource {
|
|
id: cacheItem
|
|
anchors.fill: shaderItem
|
|
visible: rootItem.cached
|
|
smooth: true
|
|
sourceItem: shaderItem
|
|
live: true
|
|
hideSource: visible
|
|
}
|
|
|
|
property string __internalBlurVertexShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders/fastblur_internal.vert"
|
|
|
|
property string __internalBlurFragmentShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders/fastblur_internal.frag"
|
|
|
|
ShaderEffect {
|
|
id: level0
|
|
property variant source: sourceProxy.output
|
|
anchors.fill: parent
|
|
visible: false
|
|
smooth: true
|
|
}
|
|
|
|
ShaderEffectSource {
|
|
id: level1
|
|
width: Math.ceil(shaderItem.width / 32) * 32
|
|
height: Math.ceil(shaderItem.height / 32) * 32
|
|
sourceItem: level0
|
|
hideSource: rootItem.visible
|
|
sourceRect: transparentBorder ? Qt.rect(-64, -64, shaderItem.width, shaderItem.height) : Qt.rect(0,0,0,0)
|
|
smooth: true
|
|
visible: false
|
|
}
|
|
|
|
ShaderEffect {
|
|
id: effect1
|
|
property variant source: level1
|
|
property real yStep: 1/height
|
|
property real xStep: 1/width
|
|
anchors.fill: level2
|
|
visible: false
|
|
smooth: true
|
|
vertexShader: __internalBlurVertexShader
|
|
fragmentShader: __internalBlurFragmentShader
|
|
}
|
|
|
|
ShaderEffectSource {
|
|
id: level2
|
|
width: level1.width / 2
|
|
height: level1.height / 2
|
|
sourceItem: effect1
|
|
hideSource: rootItem.visible
|
|
visible: false
|
|
smooth: true
|
|
}
|
|
|
|
ShaderEffect {
|
|
id: effect2
|
|
property variant source: level2
|
|
property real yStep: 1/height
|
|
property real xStep: 1/width
|
|
anchors.fill: level3
|
|
visible: false
|
|
smooth: true
|
|
vertexShader: __internalBlurVertexShader
|
|
fragmentShader: __internalBlurFragmentShader
|
|
}
|
|
|
|
ShaderEffectSource {
|
|
id: level3
|
|
width: level2.width / 2
|
|
height: level2.height / 2
|
|
sourceItem: effect2
|
|
hideSource: rootItem.visible
|
|
visible: false
|
|
smooth: true
|
|
}
|
|
|
|
ShaderEffect {
|
|
id: effect3
|
|
property variant source: level3
|
|
property real yStep: 1/height
|
|
property real xStep: 1/width
|
|
anchors.fill: level4
|
|
visible: false
|
|
smooth: true
|
|
vertexShader: __internalBlurVertexShader
|
|
fragmentShader: __internalBlurFragmentShader
|
|
}
|
|
|
|
ShaderEffectSource {
|
|
id: level4
|
|
width: level3.width / 2
|
|
height: level3.height / 2
|
|
sourceItem: effect3
|
|
hideSource: rootItem.visible
|
|
visible: false
|
|
smooth: true
|
|
}
|
|
|
|
ShaderEffect {
|
|
id: effect4
|
|
property variant source: level4
|
|
property real yStep: 1/height
|
|
property real xStep: 1/width
|
|
anchors.fill: level5
|
|
visible: false
|
|
smooth: true
|
|
vertexShader: __internalBlurVertexShader
|
|
fragmentShader: __internalBlurFragmentShader
|
|
}
|
|
|
|
ShaderEffectSource {
|
|
id: level5
|
|
width: level4.width / 2
|
|
height: level4.height / 2
|
|
sourceItem: effect4
|
|
hideSource: rootItem.visible
|
|
visible: false
|
|
smooth: true
|
|
}
|
|
|
|
ShaderEffect {
|
|
id: effect5
|
|
property variant source: level5
|
|
property real yStep: 1/height
|
|
property real xStep: 1/width
|
|
anchors.fill: level6
|
|
visible: false
|
|
smooth: true
|
|
vertexShader: __internalBlurVertexShader
|
|
fragmentShader: __internalBlurFragmentShader
|
|
}
|
|
|
|
ShaderEffectSource {
|
|
id: level6
|
|
width: level5.width / 2
|
|
height: level5.height / 2
|
|
sourceItem: effect5
|
|
hideSource: rootItem.visible
|
|
visible: false
|
|
smooth: true
|
|
}
|
|
|
|
Item {
|
|
id: dummysource
|
|
width: 1
|
|
height: 1
|
|
visible: false
|
|
}
|
|
|
|
ShaderEffectSource {
|
|
id: dummy
|
|
width: 1
|
|
height: 1
|
|
sourceItem: dummysource
|
|
visible: false
|
|
smooth: false
|
|
live: false
|
|
}
|
|
|
|
ShaderEffect {
|
|
id: shaderItem
|
|
x: transparentBorder ? -64 : 0
|
|
y: transparentBorder ? -64 : 0
|
|
width: transparentBorder ? parent.width + 128 : parent.width
|
|
height: transparentBorder ? parent.height + 128 : parent.height
|
|
|
|
property variant source1: level1
|
|
property variant source2: level2
|
|
property variant source3: level3
|
|
property variant source4: level4
|
|
property variant source5: level5
|
|
property variant source6: level6
|
|
property real lod: rootItem.blur
|
|
|
|
property real weight1;
|
|
property real weight2;
|
|
property real weight3;
|
|
property real weight4;
|
|
property real weight5;
|
|
property real weight6;
|
|
|
|
property real spread: 1.0 - (rootItem.spread * 0.98)
|
|
property alias color: rootItem.color
|
|
|
|
function weight(v) {
|
|
if (v <= 0.0)
|
|
return 1
|
|
if (v >= 0.5)
|
|
return 0
|
|
|
|
return 1.0 - v / 0.5
|
|
}
|
|
|
|
function calculateWeights() {
|
|
|
|
var w1 = weight(Math.abs(lod - 0.100))
|
|
var w2 = weight(Math.abs(lod - 0.300))
|
|
var w3 = weight(Math.abs(lod - 0.500))
|
|
var w4 = weight(Math.abs(lod - 0.700))
|
|
var w5 = weight(Math.abs(lod - 0.900))
|
|
var w6 = weight(Math.abs(lod - 1.100))
|
|
|
|
var sum = w1 + w2 + w3 + w4 + w5 + w6;
|
|
weight1 = w1 / sum;
|
|
weight2 = w2 / sum;
|
|
weight3 = w3 / sum;
|
|
weight4 = w4 / sum;
|
|
weight5 = w5 / sum;
|
|
weight6 = w6 / sum;
|
|
|
|
upateSources()
|
|
}
|
|
|
|
function upateSources() {
|
|
var sources = new Array();
|
|
var weights = new Array();
|
|
|
|
if (weight1 > 0) {
|
|
sources.push(level1)
|
|
weights.push(weight1)
|
|
}
|
|
|
|
if (weight2 > 0) {
|
|
sources.push(level2)
|
|
weights.push(weight2)
|
|
}
|
|
|
|
if (weight3 > 0) {
|
|
sources.push(level3)
|
|
weights.push(weight3)
|
|
}
|
|
|
|
if (weight4 > 0) {
|
|
sources.push(level4)
|
|
weights.push(weight4)
|
|
}
|
|
|
|
if (weight5 > 0) {
|
|
sources.push(level5)
|
|
weights.push(weight5)
|
|
}
|
|
|
|
if (weight6 > 0) {
|
|
sources.push(level6)
|
|
weights.push(weight6)
|
|
}
|
|
|
|
for (var j = sources.length; j < 6; j++) {
|
|
sources.push(dummy)
|
|
weights.push(0.0)
|
|
}
|
|
|
|
source1 = sources[0]
|
|
source2 = sources[1]
|
|
source3 = sources[2]
|
|
source4 = sources[3]
|
|
source5 = sources[4]
|
|
source6 = sources[5]
|
|
|
|
weight1 = weights[0]
|
|
weight2 = weights[1]
|
|
weight3 = weights[2]
|
|
weight4 = weights[3]
|
|
weight5 = weights[4]
|
|
weight6 = weights[5]
|
|
}
|
|
|
|
Component.onCompleted: calculateWeights()
|
|
|
|
onLodChanged: calculateWeights()
|
|
|
|
fragmentShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders/fastglow.frag"
|
|
}
|
|
}
|