test updates

thermion_dart/test/render_thread_tests.dart

@@ -0,0 +1,44 @@
+import 'dart:async';
+import 'dart:ffi';
+import 'package:test/test.dart';
+import 'package:thermion_dart/thermion_dart.dart';
+
+import 'helpers.dart';
+
+void main() async {
+  final testHelper = TestHelper("render_thread");
+  
+  await testHelper.setup();
+
+  group("render thread/capture", () {
+    test("request frame on render thread", () async {
+      await testHelper.withViewer((viewer) async {
+        var metalTexture = await testHelper.createTexture(500, 500);
+        var texture = await FilamentApp.instance!.createTexture(
+          500, 500,
+          importedTextureHandle: metalTexture.metalTextureAddress,
+          flags: {
+            TextureUsage.TEXTURE_USAGE_BLIT_DST,
+            TextureUsage.TEXTURE_USAGE_SAMPLEABLE,
+            TextureUsage.TEXTURE_USAGE_COLOR_ATTACHMENT  
+          });
+
+        var renderTarget = await FilamentApp.instance!
+            .createRenderTarget(500, 500, color: texture);
+
+        await viewer.view.setRenderTarget(renderTarget);
+
+        await viewer.render();
+
+        await Future.delayed(Duration(milliseconds: 1));
+
+        var data = metalTexture.getTextureBytes()!;
+        var pixels = data.bytes.cast<Uint8>().asTypedList(data.length);
+
+        savePixelBufferToBmp(
+            pixels, 500, 500, "${testHelper.testDir}/request_frame.bmp");
+        await viewer.dispose();
+      });
+    });
+  });
+}