Re-Enable ExternalTexturesTest (flutter#34118)

Use ImageFormat.PRIVATE since produced images are not read. Hint to downstream surface producers that the image will be sampled from on the GPU.

Author: ds84182

testing/scenario_app/android/app/src/androidTest/java/dev/flutter/scenariosui/ExternalTextureTests.java

@@ -14,14 +14,12 @@
 import androidx.test.runner.AndroidJUnit4;
 import dev.flutter.scenarios.ExternalTextureFlutterActivity;
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
 @RunWith(AndroidJUnit4.class)
 @LargeTest
-@Ignore("Test fails with java.lang.UnsupportedOperationException")
 public class ExternalTextureTests {
   private static final int SURFACE_WIDTH = 192;
   private static final int SURFACE_HEIGHT = 256;
@@ -42,7 +40,7 @@ public void setUp() {
 
   @Test
   public void testCanvasSurface() throws Exception {
-    intent.putExtra("scenario", "display_texture");
+    intent.putExtra("scenario_name", "display_texture");
     intent.putExtra("surface_renderer", "canvas");
     ScreenshotUtil.capture(
         activityRule.launchActivity(intent), "ExternalTextureTests_testCanvasSurface");
@@ -51,7 +49,7 @@ public void testCanvasSurface() throws Exception {
   @Test
   @SdkSuppress(minSdkVersion = VERSION_CODES.LOLLIPOP)
   public void testMediaSurface() throws Exception {
-    intent.putExtra("scenario", "display_texture");
+    intent.putExtra("scenario_name", "display_texture");
     intent.putExtra("surface_renderer", "media");
     ScreenshotUtil.capture(
         activityRule.launchActivity(intent), "ExternalTextureTests_testMediaSurface");
@@ -60,7 +58,7 @@ public void testMediaSurface() throws Exception {
   @Test
   @SdkSuppress(minSdkVersion = VERSION_CODES.LOLLIPOP)
   public void testRotatedMediaSurface_90() throws Exception {
-    intent.putExtra("scenario", "display_texture");
+    intent.putExtra("scenario_name", "display_texture");
     intent.putExtra("surface_renderer", "media");
     intent.putExtra("rotation", 90);
     ScreenshotUtil.capture(
@@ -70,7 +68,7 @@ public void testRotatedMediaSurface_90() throws Exception {
   @Test
   @SdkSuppress(minSdkVersion = VERSION_CODES.LOLLIPOP)
   public void testRotatedMediaSurface_180() throws Exception {
-    intent.putExtra("scenario", "display_texture");
+    intent.putExtra("scenario_name", "display_texture");
     intent.putExtra("surface_renderer", "media");
     intent.putExtra("rotation", 180);
     ScreenshotUtil.capture(
@@ -80,7 +78,7 @@ public void testRotatedMediaSurface_180() throws Exception {
   @Test
   @SdkSuppress(minSdkVersion = VERSION_CODES.LOLLIPOP)
   public void testRotatedMediaSurface_270() throws Exception {
-    intent.putExtra("scenario", "display_texture");
+    intent.putExtra("scenario_name", "display_texture");
     intent.putExtra("surface_renderer", "media");
     intent.putExtra("rotation", 270);
     ScreenshotUtil.capture(
@@ -90,7 +88,7 @@ public void testRotatedMediaSurface_270() throws Exception {
   @Test
   @SdkSuppress(minSdkVersion = VERSION_CODES.M)
   public void testCroppedMediaSurface_bottomLeft() throws Exception {
-    intent.putExtra("scenario", "display_texture");
+    intent.putExtra("scenario_name", "display_texture");
     intent.putExtra("surface_renderer", "image");
     intent.putExtra("crop", new Rect(0, 0, SURFACE_WIDTH / 2, SURFACE_HEIGHT / 2));
     ScreenshotUtil.capture(
@@ -101,7 +99,7 @@ public void testCroppedMediaSurface_bottomLeft() throws Exception {
   @Test
   @SdkSuppress(minSdkVersion = VERSION_CODES.M)
   public void testCroppedMediaSurface_topRight() throws Exception {
-    intent.putExtra("scenario", "display_texture");
+    intent.putExtra("scenario_name", "display_texture");
     intent.putExtra("surface_renderer", "image");
     intent.putExtra(
         "crop", new Rect(SURFACE_WIDTH / 2, SURFACE_HEIGHT / 2, SURFACE_WIDTH, SURFACE_HEIGHT));
@@ -113,7 +111,7 @@ public void testCroppedMediaSurface_topRight() throws Exception {
   @Test
   @SdkSuppress(minSdkVersion = VERSION_CODES.M)
   public void testCroppedRotatedMediaSurface_bottomLeft_90() throws Exception {
-    intent.putExtra("scenario", "display_texture");
+    intent.putExtra("scenario_name", "display_texture");
     intent.putExtra("surface_renderer", "image");
     intent.putExtra("crop", new Rect(0, 0, SURFACE_WIDTH / 2, SURFACE_HEIGHT / 2));
     intent.putExtra("rotation", 90);

testing/scenario_app/android/app/src/main/java/dev/flutter/scenarios/ExternalTextureFlutterActivity.java

@@ -6,11 +6,13 @@
 
 import android.content.res.AssetFileDescriptor;
 import android.graphics.Canvas;
+import android.graphics.ImageFormat;
 import android.graphics.LinearGradient;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.Shader.TileMode;
 import android.graphics.SurfaceTexture;
+import android.hardware.HardwareBuffer;
 import android.media.Image;
 import android.media.ImageReader;
 import android.media.ImageWriter;
@@ -91,7 +93,7 @@ public void waitUntilFlutterRendered() {
     super.waitUntilFlutterRendered();
 
     try {
-      firstFrameLatch.await();
+      firstFrameLatch.await(10, java.util.concurrent.TimeUnit.SECONDS);
     } catch (InterruptedException e) {
       throw new RuntimeException(e);
     }
@@ -368,9 +370,23 @@ protected ImageSurfaceRenderer(SurfaceRenderer inner, Rect crop) {
     @Override
     public void attach(Surface surface, CountDownLatch onFirstFrame) {
       this.onFirstFrame = onFirstFrame;
-      writer = ImageWriter.newInstance(surface, 3);
-      reader = ImageReader.newInstance(SURFACE_WIDTH, SURFACE_HEIGHT, writer.getFormat(), 2);
-
+      if (VERSION.SDK_INT >= VERSION_CODES.Q) {
+        // On Android Q+, use PRIVATE image format.
+        // Also let the frame producer know the images will
+        // be sampled from by the GPU.
+        writer = ImageWriter.newInstance(surface, 3, ImageFormat.PRIVATE);
+        reader =
+            ImageReader.newInstance(
+                SURFACE_WIDTH,
+                SURFACE_HEIGHT,
+                ImageFormat.PRIVATE,
+                2,
+                HardwareBuffer.USAGE_GPU_SAMPLED_IMAGE);
+      } else {
+        // Before Android Q, this will change the format of the surface to match the images.
+        writer = ImageWriter.newInstance(surface, 3);
+        reader = ImageReader.newInstance(SURFACE_WIDTH, SURFACE_HEIGHT, writer.getFormat(), 2);
+      }
       inner.attach(reader.getSurface(), null);
 
       handlerThread = new HandlerThread("image reader/writer thread");
@@ -409,7 +425,8 @@ private void onImageAvailable(ImageReader reader) {
         // If the output surface disconnects, this method will be interrupted with an
         // IllegalStateException.
         // Simply log and return.
-        Log.i(TAG, "Surface disconnected from ImageWriter");
+        Log.i(TAG, "Surface disconnected from ImageWriter", e);
+        image.close();
         return;
       }