[init] ...

src/main/kotlin/Main.kt

@@ -0,0 +1,143 @@
+package com.acitelight
+
+import org.jetbrains.skia.Bitmap
+import org.jetbrains.skia.BlendMode
+import org.jetbrains.skia.Canvas
+import org.jetbrains.skia.Color
+import org.jetbrains.skia.EncodedImageFormat
+import org.jetbrains.skia.FilterQuality
+import org.jetbrains.skia.Font
+import org.jetbrains.skia.Image
+import org.jetbrains.skia.Paint
+import org.jetbrains.skia.Rect
+import org.jetbrains.skia.Surface
+import org.jetbrains.skiko.SkiaLayer
+import org.jetbrains.skiko.SkiaLayerRenderDelegate
+import org.jetbrains.skiko.SkikoRenderDelegate
+
+import java.awt.Dimension
+import java.awt.Rectangle
+import java.io.File
+import java.nio.file.Files
+import java.nio.file.Paths
+import javax.swing.JFrame
+import javax.swing.SwingUtilities
+import javax.swing.WindowConstants
+
+val arch = java.io.File("/home/acite/IdeaProjects/skacite/res/logo.png").readBytes()
+val arch_image = Image.makeFromEncoded(arch)
+
+val waao = java.io.File("/home/acite/IdeaProjects/skacite/res/waao.png").readBytes()
+val waao_image = Image.makeFromEncoded(waao)
+
+fun renderer(canvas: Canvas, width: Int, height: Int, progress: Float)
+{
+
+    canvas.clear(Color.TRANSPARENT)
+
+    canvas.drawImageRect(
+        arch_image,
+        Rect(width / 2f - 325f, height / 2f - 35 - 112f, width / 2f + 325f, height / 2f - 35f)
+    )
+
+    canvas.drawRect(
+        Rect(width / 2f - 325f, height / 2f + 35f, width / 2f + 325f, height / 2f + 35f + 5f),
+        Paint().apply {
+            color = Color.makeRGB(50, 50, 50)
+        })
+    canvas.drawRect(
+        Rect(width / 2f - 325f, height / 2f + 35f, (width / 2f - 325f) + (650f * progress), height / 2f + 35f + 5f),
+        Paint().apply {
+        color = Color.makeRGB(50, 100, 250)
+    })
+
+    var fin = 1.0f;
+    if (progress > 0.9f) {
+        fin = (1.0f - progress) * 10f
+    }
+    val waao_size = 1200f * (1 - fin)
+
+    var alpha = 1f;
+    if( fin < 0.2f)
+    {
+        alpha -= ((1 - fin) - 0.8f) * 5f
+    }
+
+    canvas.drawImageRect(
+        waao_image,
+        Rect.makeXYWH(width / 2f - waao_size / 2f, height / 2f - waao_size / 2f, waao_size, waao_size),
+        Paint().apply {
+            color = Color.makeARGB((255 * alpha).toInt(), 50, 100, 250)
+        }
+    )
+
+}
+
+fun saveBitmapToPNG(bitmap: Bitmap, path: String) {
+    val image = Image.makeFromBitmap(bitmap)
+
+    val pngData = image.encodeToData(EncodedImageFormat.PNG)
+        ?: throw IllegalStateException("Failed to encode bitmap as PNG")
+
+    Files.write(File(path).toPath(), pngData.bytes)
+}
+
+fun genFrames()
+{
+    val width = 1920
+    val height = 1080
+    val outputDir = File("./pics")
+    if (!outputDir.exists()) outputDir.mkdirs()
+
+    val surface = Surface.makeRasterN32Premul(width, height)
+
+    val totalFrames = 160
+    for (i in 0 until totalFrames) {
+        val canvas = surface.canvas
+        val progress = i.toFloat() / (totalFrames - 1)
+
+        renderer(canvas, width, height, progress)
+
+        val snapshot = surface.makeImageSnapshot()
+        val bmp = Bitmap()
+        bmp.allocPixels(snapshot.imageInfo)
+        snapshot.readPixels(bmp)
+
+        val filename = if (i < 80) {
+            "progress-%02d.png".format(i)
+        } else {
+            "animation-%02d.png".format(i - 80)
+        }
+
+        val path = File(outputDir, filename).absolutePath
+        saveBitmapToPNG(bmp, path)
+        println("Saved: $filename")
+
+        // 清空画布避免上一帧残留
+        canvas.clear(Color.TRANSPARENT)
+    }
+
+    println("✅ All frames saved to ${outputDir.absolutePath}")
+}
+
+fun main() {
+    genFrames()
+    val skiaLayer = SkiaLayer()
+    skiaLayer.renderDelegate = SkiaLayerRenderDelegate(skiaLayer, object : SkikoRenderDelegate {
+        override fun onRender(canvas: Canvas, width: Int, height: Int, nanoTime: Long) {
+            val ts = nanoTime / 1_000_000
+            renderer(canvas, width, height, (ts % 5000) / 5000.0f)
+        }
+    })
+
+    SwingUtilities.invokeLater {
+        val window = JFrame("Skiko Plymouth").apply {
+            defaultCloseOperation = WindowConstants.EXIT_ON_CLOSE
+            preferredSize = Dimension(1920, 1080)
+        }
+        skiaLayer.attachTo(window.contentPane)
+        skiaLayer.needRedraw()
+        window.pack()
+        window.isVisible = true
+    }
+}