/*
* Komplex Wallpaper Engine
* Copyright (C) 2025 @DigitalArtifex | github.com/DigitalArtifex
*
* This was originally part of the KDE Shader Wallpaper Project, which was the inspiration for this project.
* It has been modified to use the new channel structure and is being used to support
* ShaderToy imports.
*
* --------------------------------------------------------------------------------------------------------
*
* This program 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 .
*
* This software uses some of the QML code from JaredTao/jared2020@163.com's ToyShader for Android.
* See: https://github.com/jaredtao/TaoShaderToy/
*/
pragma ComponentBehavior: Bound
import QtCore
import QtQuick
import QtQuick.Controls
import QtQuick.Dialogs as Dialogs
import org.kde.plasma.core as PlasmaCore
Item
{
property real pixelRatio: 1 //This will (hopefully) be set to PlasmaCore.Units.devicePixelRatio in onCompleted
property vector3d iResolution: Qt.vector3d(wallpaper.configuration.resolution_x,wallpaper.configuration.resolution_y,1)//width, height, pixel aspect ratio
property real iTime: 0 //used by most motion shaders
property real iTimeDelta: iTime
property var iChannelTime: [iTime, iTime, iTime, iTime] //individual channel time values
property real iSampleRate: 44100 //used by audio shaders
property int iFrame: 0
property real iFrameRate: wallpaper.configuration.framerate_limit // Default frame rate for the shader
property vector4d iMouse
property var iDate
property bool running: windowModel.runShader // Controls whether the wallpaper is running or paused
// Individual channel resolutions to customize performance and quality
property var iChannelResolution: [Qt.vector3d(wallpaper.configuration.iChannel0_resolution_x, wallpaper.configuration.iChannel0_resolution_y, pixelRatio),
Qt.vector3d(wallpaper.configuration.iChannel1_resolution_x, wallpaper.configuration.iChannel1_resolution_y, pixelRatio),
Qt.vector3d(wallpaper.configuration.iChannel2_resolution_x, wallpaper.configuration.iChannel2_resolution_y, pixelRatio),
Qt.vector3d(wallpaper.configuration.iChannel3_resolution_x, wallpaper.configuration.iChannel3_resolution_y, pixelRatio)]
id: mainItem
// The WindowModel is used to manage the interaction with the desktop environment
WindowModel
{
id: windowModel
screenGeometry: mainItem.parent.screenGeometry
}
Rectangle
{
anchors.fill: parent
color: "black"
Text
{
color: "white"
text: "" + wallpaper.configuration.selectedShaderPath + "
"
}
// Setup the shader channels (iChannel0, iChannel1, iChannel2, iChannel3)
// These channels are used to pass channel data to the shader sources and can
// be configured to use different types of media (Image, Video, Shader, Audio, CubeMap)
ShaderChannel
{
//Fallback to a channel if the output channel is not set or there was an error loading the shader
visible: wallpaper.configuration.iChannel0_flag && (channelOutput.source === "" || channelOutput.source === undefined)
iTime: mainItem.iTime
iMouse: mainItem.iMouse
iResolution: mainItem.iChannelResolution[0]
id: channel0
anchors.fill: parent
type: wallpaper.configuration.iChannel0_flag ? wallpaper.configuration.iChannel0_type : 0
source: wallpaper.configuration.iChannel0_flag ? Qt.resolvedUrl(wallpaper.configuration.iChannel0) : ""
// ShaderToy seems to start at bottom left for 0,0
invert: wallpaper.configuration.iChannel0_inverted
}
ShaderChannel
{
//Fallback to a channel if the output channel is not set or there was an error loading the shader
visible: wallpaper.configuration.iChannel1_flag && (channelOutput.source === "" || channelOutput.source === undefined)
iTime: mainItem.iTime
iResolution: mainItem.iChannelResolution[1]
id: channel1
anchors.fill: parent
type: wallpaper.configuration.iChannel1_flag ? wallpaper.configuration.iChannel1_type : 0
source: wallpaper.configuration.iChannel1_flag ? Qt.resolvedUrl(wallpaper.configuration.iChannel1) : ""
// ShaderToy seems to start at bottom left for 0,0
invert: wallpaper.configuration.iChannel1_inverted ? wallpaper.configuration.iChannel1_inverted : true
}
ShaderChannel
{
//Fallback to a channel if the output channel is not set or there was an error loading the shader
visible: wallpaper.configuration.iChannel2_flag && (channelOutput.source === "" || channelOutput.source === undefined)
iTime: mainItem.iTime
iResolution: mainItem.iChannelResolution[2]
id: channel2
anchors.fill: parent
type: wallpaper.configuration.iChannel2_flag ? wallpaper.configuration.iChannel2_type : 0
source: wallpaper.configuration.iChannel2_flag ? Qt.resolvedUrl(wallpaper.configuration.iChannel2) : ""
// ShaderToy seems to start at bottom left for 0,0
invert: wallpaper.configuration.iChannel2_inverted ? wallpaper.configuration.iChannel2_inverted : true
}
ShaderChannel
{
//Fallback to a channel if the output channel is not set or there was an error loading the shader
visible: wallpaper.configuration.iChannel3_flag && (channelOutput.source === "" || channelOutput.source === undefined)
iTime: mainItem.iTime
iChannelTime: [mainItem.iTime, mainItem.iTime, mainItem.iTime, mainItem.iTime]
iResolution: mainItem.iChannelResolution[3]
iDate: mainItem.iDate
id: channel3
anchors.fill: parent
type: wallpaper.configuration.iChannel3_flag ? wallpaper.configuration.iChannel3_type : 0
source: wallpaper.configuration.iChannel3_flag ? Qt.resolvedUrl(wallpaper.configuration.iChannel3) : ""
// ShaderToy seems to start at bottom left for 0,0
invert: wallpaper.configuration.iChannel3_inverted ? wallpaper.configuration.iChannel3_inverted : true
}
// The output channel that combines all the input channels and displays the final shader output
// This channel must be set to a shader source file that has been pre-compiled to a QSB Fragment Shader
ShaderChannel
{
iTime: mainItem.iTime
iMouse: mainItem.iMouse
iResolution: mainItem.iResolution
id: channelOutput
anchors.fill: parent
type: ShaderChannel.Type.ShaderChannel
source: wallpaper.configuration.selectedShaderPath ? wallpaper.configuration.selectedShaderPath : ""
iChannel0: channel0
iChannel1: channel1
iChannel2: channel2
iChannel3: channel3
visible: true // Set to true to display the output
}
// To save on performance, just use one timer for all channels
Timer
{
id: channelTimer
//Not entirely sure if this will actually limit the frame rate
interval: (1 / mainItem.iFrameRate) * 1000 //fps to ms cycles :: fps = 60 = 1 / 60 = 0.01666 * 1000 = 16
repeat: true
running: mainItem.running
triggeredOnStart: true
onTriggered:
{
var date = new Date();
var startOfDay = new Date(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0);
var secondsSinceMidnight = (date - startOfDay) / 1000;
mainItem.iTime += (interval / 1000) * (wallpaper.configuration.shaderSpeed ? wallpaper.configuration.shaderSpeed : 1.0)
mainItem.iDate = Qt.vector4d(date.getFullYear(), date.getMonth() + 1, date.getDate(), secondsSinceMidnight)
}
}
}
Component.onCompleted:
{
Qt.createQmlObject(`import QtQuick
MouseArea
{
id: mouseTrackingArea
propagateComposedEvents: true
preventStealing: false
enabled: wallpaper.configuration.mouseAllowed
anchors.fill: parent
hoverEnabled: true
onPositionChanged: (mouse) => {
mouse.accepted = false
mainItem.iMouse.x = mouse.x * wallpaper.configuration.mouseSpeedBias
mainItem.iMouse.y = -mouse.y * wallpaper.configuration.mouseSpeedBias
}
onClicked:(mouse) => {
mouse.accepted = false
mainItem.iMouse.z = mouse.x
mainItem.iMouse.w = mouse.y
}
// this still doesnt work... guess a C++ wrapper is all that can be done?
onPressed:(mouse) => {
mouse.accepted = false
}
onPressAndHold:(mouse) => {
mouse.accepted = false
}
onDoubleClicked:(mouse) => {
mouse.accepted = false
}
//cancelled, entered, and exited do not pass mouse events, so we can remove them
onReleased:(mouse) => {
mouse.accepted = false
}
onWheel: (mouse) => {
mouse.accepted = false
}
}`, parent.parent, "mouseTrackerArea");
// Initialize pixelRatio for shader use
pixelRatio = 1 //PlasmaCore.Units.devicePixelRatio was removed in Plasma6
}
}