WebGPU surface creation / basic app lifecycle

core/build.gradle.kts

@@ -39,6 +39,26 @@ dependencies {
     implementation(libs.jogl)
     implementation(libs.gluegen)
 
+    val lwjglVersion = "3.3.6"
+    val lwjglNatives = when {
+        System.getProperty("os.name").lowercase().contains("mac") -> {
+            if (System.getProperty("os.arch").contains("aarch64")) {
+                "natives-macos-arm64"
+            } else {
+                "natives-macos"
+            }
+        }
+        System.getProperty("os.name").lowercase().contains("win") -> "natives-windows"
+        System.getProperty("os.name").lowercase().contains("linux") -> "natives-linux"
+        else -> "natives-linux"
+    }
+
+    implementation(platform("org.lwjgl:lwjgl-bom:$lwjglVersion"))
+    implementation("org.lwjgl", "lwjgl")
+    implementation("org.lwjgl", "lwjgl-glfw")
+    runtimeOnly("org.lwjgl", "lwjgl", classifier = lwjglNatives)
+    runtimeOnly("org.lwjgl", "lwjgl-glfw", classifier = lwjglNatives)
+
     testImplementation(libs.junit)
 }
 

core/src/processing/core/PApplet.java

@@ -9981,10 +9981,6 @@ static public void runSketch(final String[] args,
             }
             break;
 
-          case ARGS_DISABLE_AWT:
-            disableAWT = true;
-            break;
-
           case ARGS_WINDOW_COLOR:
             if (value.charAt(0) == '#' && value.length() == 7) {
               value = value.substring(1);
@@ -10036,6 +10032,10 @@ static public void runSketch(final String[] args,
             fullScreen = true;
             break;
 
+          case ARGS_DISABLE_AWT:
+            disableAWT = true;
+            break;
+
           default:
             name = args[argIndex];
             break label;  // because of break, argIndex won't increment again

core/src/processing/core/PConstants.java

@@ -72,6 +72,8 @@ public interface PConstants {
   // Experimental JavaFX renderer; even better 2D performance
   String FX2D = "processing.javafx.PGraphicsFX2D";
 
+  String WEBGPU = "processing.webgpu.PGraphicsWebGPU";
+
   String PDF = "processing.pdf.PGraphicsPDF";
   String SVG = "processing.svg.PGraphicsSVG";
   String DXF = "processing.dxf.RawDXF";

core/src/processing/webgpu/PGraphicsWebGPU.java

@@ -1,4 +1,41 @@
 package processing.webgpu;
 
-public class PGraphicsWebGPU {
+import processing.core.PGraphics;
+import processing.core.PSurface;
+
+public class PGraphicsWebGPU extends PGraphics {
+    private long windowId = 0;
+
+    @Override
+    public PSurface createSurface() {
+        return surface = new PSurfaceGLFW(this);
+    }
+
+    protected void initWebGPUSurface(long windowHandle, int width, int height, float scaleFactor) {
+        windowId = PWebGPU.createSurface(windowHandle, width, height, scaleFactor);
+        if (windowId == 0) {
+            System.err.println("Failed to create WebGPU surface");
+        }
+    }
+
+    @Override
+    public void setSize(int w, int h) {
+        super.setSize(w, h);
+        if (windowId != 0) {
+            PWebGPU.windowResized(windowId, pixelWidth, pixelHeight);
+        }
+    }
+
+    @Override
+    public void endDraw() {
+        super.endDraw();
+        PWebGPU.update();
+    }
+
+    @Override
+    public void dispose() {
+        super.dispose();
+
+        PWebGPU.exit();
+    }
 }