Added setting to invert channel buffer data

package/contents/config/main.xml

@@ -61,6 +61,10 @@
       <label>iChannel0 on/off flag</label>
       <default>true</default>
     </entry>
+    <entry name="iChannel0_inverted" type="Bool">
+      <label>Invert iChannel0's data for the shader</label>
+      <default>true</default>
+    </entry>
     <entry name="iChannel0_timeScale" type="Double">
       <label>iChannel0 time scale</label>
       <default>1.0</default>
@@ -89,6 +93,10 @@
       <label>iChannel1 on/off flag</label>
       <default>true</default>
     </entry>
+    <entry name="iChannel1_inverted" type="Bool">
+      <label>Invert iChannel1's data for the shader</label>
+      <default>true</default>
+    </entry>
     <entry name="iChannel1_timeScale" type="Double">
       <label>iChannel1 time scale</label>
       <default>1.0</default>
@@ -117,6 +125,10 @@
       <label>iChannel2 on/off flag</label>
       <default>true</default>
     </entry>
+    <entry name="iChannel2_inverted" type="Bool">
+      <label>Invert iChannel2's data for the shader</label>
+      <default>true</default>
+    </entry>
     <entry name="iChannel2_timeScale" type="Double">
       <label>iChannel2 time scale</label>
       <default>1.0</default>
@@ -145,6 +157,10 @@
       <label>iChannel3 on/off flag</label>
       <default>false</default>
     </entry>
+    <entry name="iChannel3_inverted" type="Bool">
+      <label>Invert iChannel3's data for the shader</label>
+      <default>true</default>
+    </entry>
     <entry name="iChannel3_timeScale" type="Double">
       <label>iChannel3 time scale</label>
       <default>1.0</default>

package/contents/ui/KomplexModel.qml

@@ -119,18 +119,6 @@ Item
         }
     }
 
-    // Setup the connection to shader pack model for updates
-    Connections
-    {
-        target: shaderPackModel
-
-        function onJsonChanged()
-        {
-            // Parse the JSON configuration and set the properties of the ShaderChannel
-            // mainItem.parsePack(shaderPackModel.json);
-        }
-    }
-
     // Load the default shader pack configuration on component completion
     Component.onCompleted:
     {
@@ -175,6 +163,7 @@ Item
         var result = Qt.createQmlObject(`ShaderChannel
         {
             z: 0
+            invert: ${channel.invert || true}
             iTimeScale: ${channel.time_scale || 1.0}
             iResolutionScale: ${channel.resolution_scale || 1.0}
             visible: false

package/contents/ui/ShaderChannel.qml

@@ -69,6 +69,8 @@ Item
     property var iDate
     property real iTimeScale: 1 // This is used to scale the time for the shader, allowing for slow motion or fast forward effects per channel
 
+    property bool invert
+
     property var iChannelResolution: [Qt.vector3d(channel.width * iResolutionScale, channel.height * iResolutionScale, 1), Qt.vector3d(channel.width * iResolutionScale, channel.height * iResolutionScale, 1), Qt.vector3d(channel.width * iResolutionScale, channel.height * iResolutionScale, 1)]
 
     QtObject
@@ -78,6 +80,7 @@ Item
         property vector4d iMouse: Qt.vector4d(channel.iMouse.x * channel.mouseBias, channel.iMouse.y * channel.mouseBias, channel.iMouse.z, channel.iMouse.w)
         property real iTime: 0
         property real lastITime: 0
+        property real angle: channel.invert ? 180 : 0
     }
 
     onITimeChanged: 
@@ -140,6 +143,23 @@ Item
             //     }
             // }
         ]
+
+        transform: Rotation
+        {
+            id: channelRotation
+            origin.x: channel.width / 2
+            origin.y: channel.height / 2
+
+            // For vertical flipping, we need to transform the x axis
+            axis
+            {
+                x: 1
+                y: 0
+                z: 0
+            }
+
+            angle: data.angle
+        }
     }
 
     //The image channel will be the default channel type for backwards compatability
@@ -149,6 +169,7 @@ Item
 
         Image
         {
+            id: image
             anchors.fill: parent
             source: Qt.resolvedUrl(channel.source)
             fillMode: channel.fillMode

package/contents/ui/ShaderChannelConfiguration.qml

@@ -62,6 +62,7 @@ Item
     property alias tmp_resolution_scale: resolutionScaleSlider.value
     property alias tmp_resolution_x: resolutionXEdit.value
     property alias tmp_resolution_y: resolutionYEdit.value
+    property alias tmp_invert: channelInvertedCheckBox.checked
     property bool tmp_enabled: tmp_source !== ""
     property Palette palette
 
@@ -72,6 +73,7 @@ Item
     property int resolution_x
     property int resolution_y
     property bool enabled
+    property bool invert
 
     id: window
 
@@ -304,6 +306,12 @@ Item
             }
         }
 
+        CheckBox 
+        {
+            id: channelInvertedCheckBox
+            text: i18n("Invert Channel Data")
+        }
+
         RowLayout 
         {
             Layout.alignment: Qt.AlignTop
@@ -567,6 +575,7 @@ Item
         resolution_x = tmp_resolution_x
         resolution_y = tmp_resolution_y
         enabled = tmp_enabled
+        invert = tmp_invert
 
         // Emit the accepted signal and reset the selection
         window.accepted()
@@ -616,6 +625,7 @@ Item
         tmp_resolution_scale = resolution_scale
         tmp_resolution_x = resolution_x
         tmp_resolution_y = resolution_y
+        tmp_invert = invert
 
         tmp_type = type
         updateCurrentSelection()

package/contents/ui/ShaderToyModel.qml

@@ -89,6 +89,9 @@ Item
             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
@@ -103,6 +106,9 @@ Item
             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
@@ -117,6 +123,9 @@ Item
             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
@@ -133,6 +142,9 @@ Item
             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

package/contents/ui/config.qml

@@ -71,6 +71,10 @@ Kirigami.FormLayout
     property alias cfg_iChannel2_resolution_y: shaderChannelConfig2.resolution_y
     property alias cfg_iChannel3_resolution_x: shaderChannelConfig3.resolution_x
     property alias cfg_iChannel3_resolution_y: shaderChannelConfig3.resolution_y
+    property alias cfg_iChannel0_inverted: shaderChannelConfig0.invert
+    property alias cfg_iChannel1_inverted: shaderChannelConfig1.invert
+    property alias cfg_iChannel2_inverted: shaderChannelConfig2.invert
+    property alias cfg_iChannel3_inverted: shaderChannelConfig3.invert
     property alias cfg_shaderSpeed: speedSlider.value
     property alias cfg_mouseSpeedBias: mouseBiasSlider.value
     property alias cfg_mouseAllowed: mouseEnableButton.checked
@@ -773,7 +777,7 @@ Kirigami.FormLayout
             }
 
             textRole: "fileBaseName"
-            currentIndex: root.cfg_shader_package
+            currentIndex: root.cfg_shader_package_index
             displayText: currentIndex === -1 ? "Custom File" : currentText.replace("_", " ").charAt(0).toUpperCase() + currentText.replace("_", " ").slice(1)
 
             onCurrentTextChanged: