[orx-jumpflood] Make module multiplatform

orx-jumpflood/src/commonMain/kotlin/fx/Inpaint.kt

@@ -0,0 +1,72 @@
+package org.openrndr.extra.jumpfill.fx
+
+import org.openrndr.draw.*
+import org.openrndr.extra.jumpfill.EncodeSubpixel
+import org.openrndr.extra.jumpfill.JumpFlooder
+import org.openrndr.extra.jumpfill.PixelDirection
+import org.openrndr.extra.jumpflood.jf_inpaint
+import org.openrndr.extra.parameters.Description
+import org.openrndr.extra.parameters.DoubleParameter
+import org.openrndr.math.Vector2
+import org.openrndr.resourceUrl
+
+private class InpaintFilter : Filter(filterShaderFromCode(jf_inpaint, "inpaint")) {
+
+    var noise: Double by parameters
+    var imageOpacity: Double by parameters
+    var opacity: Double by parameters
+    var shape: Double by parameters
+    var width: Double by parameters
+
+    init {
+        noise = 0.0
+        imageOpacity = 1.0
+        opacity = 1.0
+        shape = 0.0
+        width = 0.5
+    }
+}
+
+@Description("Inpaint")
+class Inpaint : Filter() {
+    @DoubleParameter("width", 0.0, 1.0)
+    var width = 0.5
+
+    @DoubleParameter("noise", 0.0, 1.0)
+    var noise = 0.1
+
+    @DoubleParameter("opacity", 0.0, 1.0)
+    var opacity = 1.0
+
+    @DoubleParameter("image opacity", 0.0, 1.0)
+    var imageOpacity = 1.0
+
+    @DoubleParameter("shape", 0.0, 10.0)
+    var shape = 0.0
+
+    private var jumpFlooder: JumpFlooder? = null
+    private val decodeFilter = PixelDirection()
+    private val inpaintFilter = InpaintFilter()
+
+    private var distance: ColorBuffer? = null
+
+    override fun apply(source: Array<ColorBuffer>, target: Array<ColorBuffer>) {
+        if (jumpFlooder == null) {
+            jumpFlooder = JumpFlooder(target[0].width, target[0].height, encodePoints = EncodeSubpixel())
+        }
+        if (distance == null) {
+            distance = colorBuffer(target[0].width, target[0].height, type = ColorType.FLOAT32)
+        }
+        val result = jumpFlooder!!.jumpFlood(source[0])
+        decodeFilter.originalSize = Vector2(target[0].width * 1.0, target[0].height * 1.0)
+        decodeFilter.distanceScale = 1.0
+        decodeFilter.apply(result, result)
+        result.copyTo(distance!!)
+        inpaintFilter.noise = noise
+        inpaintFilter.imageOpacity = imageOpacity
+        inpaintFilter.opacity = opacity
+        inpaintFilter.shape = shape
+        inpaintFilter.width = width
+        inpaintFilter.apply(arrayOf(source[0], distance!!), target[0])
+    }
+}