Add compositingStrategy param for Modifier.liquidGlass

When using glass in a scrollable container #4, it's more efficient to use `Auto`. In most cases it's  more efficient to use `Offscreen`.

liquid-glass/src/main/java/com/kyant/liquidglass/GlassShapeElement.kt

@@ -2,6 +2,7 @@ package com.kyant.liquidglass
 
 import androidx.compose.foundation.shape.CornerBasedShape
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.CompositingStrategy
 import androidx.compose.ui.graphics.GraphicsLayerScope
 import androidx.compose.ui.layout.Measurable
 import androidx.compose.ui.layout.MeasureResult
@@ -15,20 +16,22 @@ import androidx.compose.ui.platform.InspectorInfo
 import androidx.compose.ui.unit.Constraints
 
 internal class GlassShapeElement(
-    val style: () -> GlassStyle
+    val style: () -> GlassStyle,
+    val compositingStrategy: CompositingStrategy
 ) : ModifierNodeElement<GlassShapeNode>() {
 
     override fun create(): GlassShapeNode {
-        return GlassShapeNode(style)
+        return GlassShapeNode(style, compositingStrategy)
     }
 
     override fun update(node: GlassShapeNode) {
-        node.update(style)
+        node.update(style, compositingStrategy)
     }
 
     override fun InspectorInfo.inspectableProperties() {
         name = "glassShape"
         properties["style"] = style
+        properties["compositingStrategy"] = compositingStrategy
     }
 
     override fun equals(other: Any?): Boolean {
@@ -36,17 +39,21 @@ internal class GlassShapeElement(
         if (other !is GlassShapeElement) return false
 
         if (style != other.style) return false
+        if (compositingStrategy != other.compositingStrategy) return false
 
         return true
     }
 
     override fun hashCode(): Int {
-        return style.hashCode()
+        var result = style.hashCode()
+        result = 31 * result + compositingStrategy.hashCode()
+        return result
     }
 }
 
 internal class GlassShapeNode(
-    var style: () -> GlassStyle
+    var style: () -> GlassStyle,
+    var compositingStrategy: CompositingStrategy
 ) : LayoutModifierNode, ObserverModifierNode, Modifier.Node() {
 
     override val shouldAutoInvalidate: Boolean = false
@@ -62,6 +69,7 @@ internal class GlassShapeNode(
     private val layerBlock: GraphicsLayerScope.() -> Unit = {
         clip = true
         shape = this@GlassShapeNode.shape
+        compositingStrategy = this@GlassShapeNode.compositingStrategy
     }
 
     override fun MeasureScope.measure(measurable: Measurable, constraints: Constraints): MeasureResult {
@@ -81,12 +89,17 @@ internal class GlassShapeNode(
     }
 
     fun update(
-        style: () -> GlassStyle
+        style: () -> GlassStyle,
+        compositingStrategy: CompositingStrategy
     ) {
         if (this.style != style) {
             this.style = style
             updateShape()
         }
+        if (this.compositingStrategy != compositingStrategy) {
+            this.compositingStrategy = compositingStrategy
+            invalidateLayer()
+        }
     }
 
     private fun updateShape() {

liquid-glass/src/main/java/com/kyant/liquidglass/LiquidGlassModifier.kt

@@ -15,6 +15,7 @@ import androidx.compose.ui.draw.CacheDrawModifierNode
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.geometry.Size
 import androidx.compose.ui.graphics.ColorFilter
+import androidx.compose.ui.graphics.CompositingStrategy
 import androidx.compose.ui.graphics.asAndroidColorFilter
 import androidx.compose.ui.graphics.asComposeRenderEffect
 import androidx.compose.ui.graphics.drawscope.translate
@@ -41,33 +42,39 @@ import kotlinx.coroutines.launch
 
 fun Modifier.liquidGlass(
     state: LiquidGlassProviderState,
-    style: () -> GlassStyle
-): Modifier =
-    this
-        .then(GlassShapeElement(style = style))
-        .then(
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-                LiquidGlassElement(
-                    state = state,
-                    style = style,
-                    luminanceSampler = null
-                ) then GlassBrushElement(
-                    style = style
-                ) then GlassHighlightElement(
-                    style = style
-                )
-            } else {
-                Modifier
-            }
-        )
-
-fun Modifier.liquidGlass(
-    state: LiquidGlassProviderState,
-    style: GlassStyle
+    style: GlassStyle,
+    compositingStrategy: CompositingStrategy = CompositingStrategy.Offscreen
 ): Modifier =
     this.liquidGlass(
         state = state,
         luminanceSampler = null,
+        compositingStrategy = compositingStrategy,
+        style = { style }
+    )
+
+fun Modifier.liquidGlass(
+    state: LiquidGlassProviderState,
+    compositingStrategy: CompositingStrategy = CompositingStrategy.Offscreen,
+    style: () -> GlassStyle
+): Modifier =
+    this.liquidGlass(
+        state = state,
+        luminanceSampler = null,
+        compositingStrategy = compositingStrategy,
+        style = style
+    )
+
+@ExperimentalLuminanceSamplerApi
+fun Modifier.liquidGlass(
+    state: LiquidGlassProviderState,
+    style: GlassStyle,
+    compositingStrategy: CompositingStrategy = CompositingStrategy.Offscreen,
+    luminanceSampler: LuminanceSampler? = null
+): Modifier =
+    this.liquidGlass(
+        state = state,
+        luminanceSampler = luminanceSampler,
+        compositingStrategy = compositingStrategy,
         style = { style }
     )
 
@@ -75,10 +82,16 @@ fun Modifier.liquidGlass(
 fun Modifier.liquidGlass(
     state: LiquidGlassProviderState,
     luminanceSampler: LuminanceSampler? = null,
+    compositingStrategy: CompositingStrategy = CompositingStrategy.Offscreen,
     style: () -> GlassStyle
 ): Modifier =
     this
-        .then(GlassShapeElement(style = style))
+        .then(
+            GlassShapeElement(
+                style = style,
+                compositingStrategy = compositingStrategy
+            )
+        )
         .then(
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
                 LiquidGlassElement(
@@ -95,18 +108,6 @@ fun Modifier.liquidGlass(
             }
         )
 
-@ExperimentalLuminanceSamplerApi
-fun Modifier.liquidGlass(
-    state: LiquidGlassProviderState,
-    style: GlassStyle,
-    luminanceSampler: LuminanceSampler? = null
-): Modifier =
-    this.liquidGlass(
-        state = state,
-        luminanceSampler = luminanceSampler,
-        style = { style }
-    )
-
 @RequiresApi(Build.VERSION_CODES.TIRAMISU)
 private class LiquidGlassElement(
     val state: LiquidGlassProviderState,