add TTexture bindings with TextureFormat, PixelDataType and PixelDataFormat enums

thermion_dart/test/texture_tests.dart

@@ -0,0 +1,26 @@
+import 'dart:io';
+import 'package:test/test.dart';
+import 'package:thermion_dart/thermion_dart.dart';
+import 'helpers.dart';
+
+void main() async {
+  final testHelper = TestHelper("material");
+
+  group("image", () {
+    test('decode image', () async {
+      await testHelper.withViewer((viewer) async {
+        var imageData =
+            File("${testHelper.testDir}/assets/cube_texture_512x512.png")
+                .readAsBytesSync();
+        final image = await viewer.decodeImage(imageData);
+        expect(await image.getChannels(), 4);
+        expect(await image.getWidth(), 512);
+        expect(await image.getHeight(), 512);
+
+        final texture = await viewer.createTexture(
+            await image.getWidth(), await image.getHeight(), textureFormat: TextureFormat.RGBA32F);
+        await texture.setLinearImage(image, PixelDataFormat.RGBA, PixelDataType.FLOAT);
+      }, bg: kRed);
+    });
+  });
+}