Reland "Use skia.mojom.BitmapN32 in Detection mojoms"

This is a reland of c7326b7f

Canvases may have different color formats than N32, and when we pull
the content of them into a cpu bitmap through SkImage::toLegacyBitmap()
we need to convert that to N32 format if we're going to send the bitmap
over IPC due to security restrictions of the BitmapN32 mojom type.

This does that conversion in the blink ShapeDetector and adds a test with
a float16 color format canvas which would cause the IPC sending to be
dropped (and the renderer to crash).

TBR=dcheng

Original change's description:
> Use skia.mojom.BitmapN32 in Detection mojoms
>
> These bitmaps are safer for transport from untrustworthy sources since
> all bitmaps should be in N32 format and the browser can make bad
> assumptions as a result.
>
> R=dcheng@chromium.org, reillyg@chromium.org
>
> Bug: 1144462
> Change-Id: I7d02cb187c62be37259f445a182f8c971aa03661
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2580483
> Commit-Queue: danakj <danakj@chromium.org>
> Reviewed-by: Reilly Grant <reillyg@chromium.org>
> Reviewed-by: Daniel Cheng <dcheng@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#835685}

Bug: 1144462
Change-Id: I23ef3df85049a7111830c5d272c02b69f9d7cd38
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2593827
Commit-Queue: danakj <danakj@chromium.org>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#837241}

services/shape_detection/android/java/src/org/chromium/shape_detection/BarcodeDetectionImpl.java

@@ -75,8 +75,7 @@ public class BarcodeDetectionImpl implements BarcodeDetection {
     }
 
     @Override
-    public void detect(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp bitmapData, DetectResponse callback) {
+    public void detect(org.chromium.skia.mojom.BitmapN32 bitmapData, DetectResponse callback) {
         // The vision library will be downloaded the first time the API is used
         // on the device; this happens "fast", but it might have not completed,
         // bail in this case. Also, the API was disabled between and v.9.0 and

services/shape_detection/android/java/src/org/chromium/shape_detection/BitmapUtils.java

@@ -9,7 +9,6 @@ import android.graphics.Bitmap;
 import com.google.android.gms.vision.Frame;
 
 import org.chromium.mojo_base.BigBufferUtil;
-import org.chromium.skia.mojom.ColorType;
 
 import java.nio.ByteBuffer;
 
@@ -17,20 +16,19 @@ import java.nio.ByteBuffer;
  * Utility class to convert a Bitmap to a GMS core YUV Frame.
  */
 public class BitmapUtils {
-    public static Bitmap convertToBitmap(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp bitmapData) {
-        if (bitmapData.imageInfo == null) return null;
+    public static Bitmap convertToBitmap(org.chromium.skia.mojom.BitmapN32 bitmapData) {
+        // A null BitmapN32 has null pixelData. Otherwise, BitmapN32 always has
+        // a valid N32 (aka RGBA_8888 or BGRA_8888 depending on the build
+        // config) colorType.
+        if (bitmapData.pixelData == null) {
+            return null;
+        }
+
         int width = bitmapData.imageInfo.width;
         int height = bitmapData.imageInfo.height;
         final long numPixels = (long) width * height;
         // TODO(mcasas): https://crbug.com/670028 homogeneize overflow checking.
-        if (bitmapData.pixelData == null || width <= 0 || height <= 0
-                || numPixels > (Long.MAX_VALUE / 4)) {
-            return null;
-        }
-
-        if (bitmapData.imageInfo.colorType != ColorType.RGBA_8888
-                && bitmapData.imageInfo.colorType != ColorType.BGRA_8888) {
+        if (width <= 0 || height <= 0 || numPixels > (Long.MAX_VALUE / 4)) {
             return null;
         }
 
@@ -46,7 +44,7 @@ public class BitmapUtils {
         return bitmap;
     }
 
-    public static Frame convertToFrame(org.chromium.skia.mojom.BitmapWithArbitraryBpp bitmapData) {
+    public static Frame convertToFrame(org.chromium.skia.mojom.BitmapN32 bitmapData) {
         Bitmap bitmap = convertToBitmap(bitmapData);
         if (bitmap == null) {
             return null;

services/shape_detection/android/java/src/org/chromium/shape_detection/FaceDetectionImpl.java

@@ -36,8 +36,8 @@ public class FaceDetectionImpl implements FaceDetection {
     }
 
     @Override
-    public void detect(org.chromium.skia.mojom.BitmapWithArbitraryBpp bitmapData,
-            final DetectResponse callback) {
+    public void detect(
+            org.chromium.skia.mojom.BitmapN32 bitmapData, final DetectResponse callback) {
         Bitmap bitmap = BitmapUtils.convertToBitmap(bitmapData);
         if (bitmap == null) {
             Log.e(TAG, "Error converting Mojom Bitmap to Android Bitmap");

services/shape_detection/android/java/src/org/chromium/shape_detection/FaceDetectionImplGmsCore.java

@@ -59,8 +59,7 @@ public class FaceDetectionImplGmsCore implements FaceDetection {
     }
 
     @Override
-    public void detect(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp bitmapData, DetectResponse callback) {
+    public void detect(org.chromium.skia.mojom.BitmapN32 bitmapData, DetectResponse callback) {
         // The vision library will be downloaded the first time the API is used
         // on the device; this happens "fast", but it might have not completed,
         // bail in this case.

services/shape_detection/android/java/src/org/chromium/shape_detection/TextDetectionImpl.java

@@ -34,8 +34,7 @@ public class TextDetectionImpl implements TextDetection {
     }
 
     @Override
-    public void detect(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp bitmapData, DetectResponse callback) {
+    public void detect(org.chromium.skia.mojom.BitmapN32 bitmapData, DetectResponse callback) {
         // The vision library will be downloaded the first time the API is used
         // on the device; this happens "fast", but it might have not completed,
         // bail in this case. Also, the API was disabled between and v.9.0 and

services/shape_detection/android/javatests/src/org/chromium/shape_detection/BarcodeDetectionImplTest.java

@@ -40,7 +40,7 @@ import java.util.concurrent.TimeUnit;
 @UseRunnerDelegate(BaseJUnit4RunnerDelegate.class)
 @DisableIf.Build(sdk_is_greater_than = Build.VERSION_CODES.N_MR1, message = "crbug.com/1153716")
 public class BarcodeDetectionImplTest {
-    private static final org.chromium.skia.mojom.BitmapWithArbitraryBpp QR_CODE_BITMAP =
+    private static final org.chromium.skia.mojom.BitmapN32 QR_CODE_BITMAP =
             TestUtils.mojoBitmapFromFile("qr_code.png");
 
     private static final int[] SUPPORTED_FORMATS = {BarcodeFormat.AZTEC, BarcodeFormat.CODE_128,
@@ -69,14 +69,13 @@ public class BarcodeDetectionImplTest {
         return toReturn;
     }
 
-    private static BarcodeDetectionResult[] detect(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmap) {
+    private static BarcodeDetectionResult[] detect(org.chromium.skia.mojom.BitmapN32 mojoBitmap) {
         BarcodeDetectorOptions options = new BarcodeDetectorOptions();
         return detectWithOptions(mojoBitmap, options);
     }
 
     private static BarcodeDetectionResult[] detectWithHint(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmap, int format) {
+            org.chromium.skia.mojom.BitmapN32 mojoBitmap, int format) {
         Assert.assertTrue(BarcodeFormat.isKnownValue(format));
         BarcodeDetectorOptions options = new BarcodeDetectorOptions();
         options.formats = new int[] {format};
@@ -84,8 +83,7 @@ public class BarcodeDetectionImplTest {
     }
 
     private static BarcodeDetectionResult[] detectWithOptions(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmap,
-            BarcodeDetectorOptions options) {
+            org.chromium.skia.mojom.BitmapN32 mojoBitmap, BarcodeDetectorOptions options) {
         BarcodeDetection detector = new BarcodeDetectionImpl(options);
 
         final ArrayBlockingQueue<BarcodeDetectionResult[]> queue = new ArrayBlockingQueue<>(1);
@@ -175,8 +173,7 @@ public class BarcodeDetectionImplTest {
         if (!TestUtils.IS_GMS_CORE_SUPPORTED) {
             return;
         }
-        org.chromium.skia.mojom.BitmapWithArbitraryBpp bitmap =
-                TestUtils.mojoBitmapFromFile(inputFile);
+        org.chromium.skia.mojom.BitmapN32 bitmap = TestUtils.mojoBitmapFromFile(inputFile);
         BarcodeDetectionResult[] results = detectWithHint(bitmap, format);
         Assert.assertEquals(1, results.length);
         Assert.assertEquals(value, results[0].rawValue);
@@ -196,8 +193,7 @@ public class BarcodeDetectionImplTest {
         if (!TestUtils.IS_GMS_CORE_SUPPORTED) {
             return;
         }
-        org.chromium.skia.mojom.BitmapWithArbitraryBpp bitmap =
-                TestUtils.mojoBitmapFromFile(inputFile);
+        org.chromium.skia.mojom.BitmapN32 bitmap = TestUtils.mojoBitmapFromFile(inputFile);
         BarcodeDetectionResult[] results = detect(bitmap);
         Assert.assertEquals(1, results.length);
         Assert.assertEquals(value, results[0].rawValue);

services/shape_detection/android/javatests/src/org/chromium/shape_detection/FaceDetectionImplTest.java

@@ -34,9 +34,9 @@ import java.util.concurrent.TimeUnit;
 @Batch(Batch.UNIT_TESTS)
 @DisableIf.Build(sdk_is_greater_than = Build.VERSION_CODES.N_MR1, message = "crbug.com/1153716")
 public class FaceDetectionImplTest {
-    private static final org.chromium.skia.mojom.BitmapWithArbitraryBpp MONA_LISA_BITMAP =
+    private static final org.chromium.skia.mojom.BitmapN32 MONA_LISA_BITMAP =
             TestUtils.mojoBitmapFromFile("mona_lisa.jpg");
-    private static final org.chromium.skia.mojom.BitmapWithArbitraryBpp FACE_POSE_BITMAP =
+    private static final org.chromium.skia.mojom.BitmapN32 FACE_POSE_BITMAP =
             TestUtils.mojoBitmapFromFile("face_pose.png");
     // Different versions of Android have different implementations of FaceDetector.findFaces(), so
     // we have to use a large error threshold.
@@ -47,9 +47,8 @@ public class FaceDetectionImplTest {
 
     public FaceDetectionImplTest() {}
 
-    private static FaceDetectionResult[] detect(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmap, boolean fastMode,
-            DetectionProviderType api) {
+    private static FaceDetectionResult[] detect(org.chromium.skia.mojom.BitmapN32 mojoBitmap,
+            boolean fastMode, DetectionProviderType api) {
         FaceDetectorOptions options = new FaceDetectorOptions();
         options.fastMode = fastMode;
         options.maxDetectedFaces = 32;
@@ -116,8 +115,7 @@ public class FaceDetectionImplTest {
                 MONA_LISA_BITMAP.imageInfo.height, Bitmap.Config.ARGB_8888);
         Canvas canvas = new Canvas(paddedBitmap);
         canvas.drawBitmap(BitmapUtils.convertToBitmap(MONA_LISA_BITMAP), 0, 0, null);
-        org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmap =
-                TestUtils.mojoBitmapFromBitmap(paddedBitmap);
+        org.chromium.skia.mojom.BitmapN32 mojoBitmap = TestUtils.mojoBitmapFromBitmap(paddedBitmap);
         Assert.assertEquals(1, mojoBitmap.imageInfo.width % 2);
 
         FaceDetectionResult[] results = detect(mojoBitmap, true, DetectionProviderType.ANDROID);

services/shape_detection/android/javatests/src/org/chromium/shape_detection/TestUtils.java

@@ -13,8 +13,7 @@ import android.graphics.Paint;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.test.util.UrlUtils;
 import org.chromium.gms.ChromiumPlayServicesAvailability;
-import org.chromium.skia.mojom.ColorType;
-import org.chromium.skia.mojom.ImageInfo;
+import org.chromium.skia.mojom.BitmapN32ImageInfo;
 
 import java.nio.ByteBuffer;
 
@@ -31,31 +30,26 @@ public class TestUtils {
                 ContextUtils.getApplicationContext());
     }
 
-    public static org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmapFromBitmap(
-            Bitmap bitmap) {
+    public static org.chromium.skia.mojom.BitmapN32 mojoBitmapFromBitmap(Bitmap bitmap) {
         ByteBuffer buffer = ByteBuffer.allocate(bitmap.getByteCount());
         bitmap.copyPixelsToBuffer(buffer);
 
-        org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmap =
-                new org.chromium.skia.mojom.BitmapWithArbitraryBpp();
-        mojoBitmap.imageInfo = new ImageInfo();
+        org.chromium.skia.mojom.BitmapN32 mojoBitmap = new org.chromium.skia.mojom.BitmapN32();
+        mojoBitmap.imageInfo = new BitmapN32ImageInfo();
         mojoBitmap.imageInfo.width = bitmap.getWidth();
         mojoBitmap.imageInfo.height = bitmap.getHeight();
-        mojoBitmap.imageInfo.colorType = ColorType.RGBA_8888;
         mojoBitmap.pixelData = new org.chromium.mojo_base.mojom.BigBuffer();
         mojoBitmap.pixelData.setBytes(buffer.array());
         return mojoBitmap;
     }
 
-    public static org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmapFromFile(
-            String relPath) {
+    public static org.chromium.skia.mojom.BitmapN32 mojoBitmapFromFile(String relPath) {
         String path = UrlUtils.getIsolatedTestFilePath("services/test/data/" + relPath);
         Bitmap bitmap = BitmapFactory.decodeFile(path);
         return mojoBitmapFromBitmap(bitmap);
     }
 
-    public static org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmapFromText(
-            String[] texts) {
+    public static org.chromium.skia.mojom.BitmapN32 mojoBitmapFromText(String[] texts) {
         final int x = 10;
         final int baseline = 100;
 

services/shape_detection/android/javatests/src/org/chromium/shape_detection/TextDetectionImplTest.java

@@ -34,11 +34,10 @@ public class TextDetectionImplTest {
             "The quick brown fox jumped over the lazy dog.", "Helvetica Neue 36."};
     private static final float[][] TEXT_BOUNDING_BOX = {
             {0.0f, 71.0f, 753.0f, 36.0f}, {4.0f, 173.0f, 307.0f, 28.0f}};
-    private static final org.chromium.skia.mojom.BitmapWithArbitraryBpp TEXT_DETECTION_BITMAP =
+    private static final org.chromium.skia.mojom.BitmapN32 TEXT_DETECTION_BITMAP =
             TestUtils.mojoBitmapFromText(DETECTION_EXPECTED_TEXT);
 
-    private static TextDetectionResult[] detect(
-            org.chromium.skia.mojom.BitmapWithArbitraryBpp mojoBitmap) {
+    private static TextDetectionResult[] detect(org.chromium.skia.mojom.BitmapN32 mojoBitmap) {
         TextDetection detector = new TextDetectionImpl();
 
         final ArrayBlockingQueue<TextDetectionResult[]> queue = new ArrayBlockingQueue<>(1);

services/shape_detection/android/junit/src/org/chromium/shape_detection/BitmapUtilsTest.java

@@ -16,9 +16,8 @@ import org.robolectric.shadows.ShadowLog;
 import org.chromium.base.test.BaseRobolectricTestRunner;
 import org.chromium.base.test.util.Feature;
 import org.chromium.mojo_base.BigBufferUtil;
-import org.chromium.skia.mojom.BitmapWithArbitraryBpp;
-import org.chromium.skia.mojom.ColorType;
-import org.chromium.skia.mojom.ImageInfo;
+import org.chromium.skia.mojom.BitmapN32;
+import org.chromium.skia.mojom.BitmapN32ImageInfo;
 
 /**
  * Test suite for conversion-to-Frame utils.
@@ -46,9 +45,9 @@ public class BitmapUtilsTest {
     @Test
     @Feature({"ShapeDetection"})
     public void testConversionFailsWithInvalidBitmap() {
-        BitmapWithArbitraryBpp bitmap = new BitmapWithArbitraryBpp();
+        BitmapN32 bitmap = new BitmapN32();
         bitmap.pixelData = null;
-        bitmap.imageInfo = new ImageInfo();
+        bitmap.imageInfo = new BitmapN32ImageInfo();
 
         assertNull(BitmapUtils.convertToFrame(bitmap));
     }
@@ -59,8 +58,8 @@ public class BitmapUtilsTest {
     @Test
     @Feature({"ShapeDetection"})
     public void testConversionFailsWithInvalidDimensions() {
-        BitmapWithArbitraryBpp bitmap = new BitmapWithArbitraryBpp();
-        bitmap.imageInfo = new ImageInfo();
+        BitmapN32 bitmap = new BitmapN32();
+        bitmap.imageInfo = new BitmapN32ImageInfo();
         bitmap.pixelData = BigBufferUtil.createBigBufferFromBytes(EMPTY_DATA);
         bitmap.imageInfo.width = INVALID_WIDTH;
         bitmap.imageInfo.height = VALID_HEIGHT;
@@ -74,12 +73,11 @@ public class BitmapUtilsTest {
     @Test
     @Feature({"ShapeDetection"})
     public void testConversionFailsWithWronglyWrappedData() {
-        BitmapWithArbitraryBpp bitmap = new BitmapWithArbitraryBpp();
-        bitmap.imageInfo = new ImageInfo();
+        BitmapN32 bitmap = new BitmapN32();
+        bitmap.imageInfo = new BitmapN32ImageInfo();
         bitmap.pixelData = BigBufferUtil.createBigBufferFromBytes(EMPTY_DATA);
         bitmap.imageInfo.width = VALID_WIDTH;
         bitmap.imageInfo.height = VALID_HEIGHT;
-        bitmap.imageInfo.colorType = ColorType.RGBA_8888;
 
         assertNull(BitmapUtils.convertToFrame(bitmap));
     }

services/shape_detection/detection_utils_win.cc

@@ -20,17 +20,11 @@ ComPtr<ISoftwareBitmap> CreateWinBitmapFromSkBitmap(
     const SkBitmap& bitmap,
     ISoftwareBitmapStatics* bitmap_factory) {
   DCHECK(bitmap_factory);
+  DCHECK_EQ(bitmap.colorType(), kN32_SkColorType);
   if (!base::CheckedNumeric<uint32_t>(bitmap.computeByteSize()).IsValid()) {
     DLOG(ERROR) << "Data overflow.";
     return nullptr;
   }
-  // CreateCopyFromBuffer() assumes the pixels we pass in are 32bits each and
-  // are tightly packed. Receiving a bitmap of a different bits-per-pixel would
-  // create a buffer overflow. The `pixel_format` we use below assumes the
-  // format of the bitmap is N32.
-  CHECK_EQ(bitmap.colorType(), kN32_SkColorType);
-  CHECK_EQ(4, bitmap.info().bytesPerPixel());
-  CHECK_EQ(bitmap.rowBytes(), bitmap.width() * static_cast<size_t>(4));
 
   // Create IBuffer from bitmap data.
   ComPtr<ABI::Windows::Storage::Streams::IBuffer> buffer;

services/shape_detection/public/mojom/barcodedetection.mojom

@@ -37,7 +37,6 @@ struct BarcodeDetectionResult {
 };
 
 interface BarcodeDetection {
-  // |bitmap_data| contains tightly packed image pixels in row-major order.
-  Detect(skia.mojom.BitmapWithArbitraryBpp bitmap_data)
+  Detect(skia.mojom.BitmapN32 bitmap_data)
     => (array<BarcodeDetectionResult> results);
 };

services/shape_detection/public/mojom/facedetection.mojom

@@ -32,7 +32,6 @@ struct FaceDetectorOptions {
 };
 
 interface FaceDetection {
-  // |bitmap_data| contains tightly packed image pixels in row-major order.
-  Detect(skia.mojom.BitmapWithArbitraryBpp bitmap_data)
+  Detect(skia.mojom.BitmapN32 bitmap_data)
     => (array<FaceDetectionResult> results);
 };

services/shape_detection/public/mojom/textdetection.mojom

@@ -16,7 +16,6 @@ struct TextDetectionResult {
 };
 
 interface TextDetection {
-  // |bitmap_data| contains tightly packed image pixels in row-major order.
-  Detect(skia.mojom.BitmapWithArbitraryBpp bitmap_data)
+  Detect(skia.mojom.BitmapN32 bitmap_data)
     => (array<TextDetectionResult> results);
 };

third_party/blink/renderer/modules/DEPS

@@ -8,6 +8,7 @@ include_rules = [
     "+services/device/public/mojom",
     "+services/network/public/cpp/shared_url_loader_factory.h",
     "+services/viz/public/mojom/hit_test/hit_test_region_list.mojom-blink.h",
+    "+skia/ext/skia_utils_base.h",
     "+third_party/blink/public/common",
     "+third_party/blink/public/web",
     "+third_party/blink/renderer/bindings",

third_party/blink/renderer/modules/shapedetection/shape_detector.cc

@@ -7,6 +7,7 @@
 #include <utility>
 
 #include "base/numerics/checked_math.h"
+#include "skia/ext/skia_utils_base.h"
 #include "third_party/blink/renderer/core/dom/document.h"
 #include "third_party/blink/renderer/core/dom/dom_exception.h"
 #include "third_party/blink/renderer/core/execution_context/execution_context.h"
@@ -90,7 +91,9 @@ ScriptPromise ShapeDetector::detect(
       image->PaintImageForCurrentFrame().GetSwSkImage();
 
   SkBitmap sk_bitmap;
-  if (!sk_image->asLegacyBitmap(&sk_bitmap)) {
+  SkBitmap n32_bitmap;
+  if (!sk_image->asLegacyBitmap(&sk_bitmap) ||
+      !skia::SkBitmapToN32OpaqueOrPremul(sk_bitmap, &n32_bitmap)) {
     // TODO(mcasas): retrieve the pixels from elsewhere.
     NOTREACHED();
     resolver->Reject(MakeGarbageCollected<DOMException>(
@@ -99,7 +102,7 @@ ScriptPromise ShapeDetector::detect(
     return promise;
   }
 
-  return DoDetect(resolver, std::move(sk_bitmap));
+  return DoDetect(resolver, std::move(n32_bitmap));
 }
 
 ScriptPromise ShapeDetector::DetectShapesOnImageData(
@@ -121,7 +124,8 @@ ScriptPromise ShapeDetector::DetectShapesOnImageData(
 
   SkPixmap image_data_pixmap = image_data->GetSkPixmap();
   SkBitmap sk_bitmap;
-  if (!sk_bitmap.tryAllocPixels(image_data_pixmap.info(),
+  if (!sk_bitmap.tryAllocPixels(
+          image_data_pixmap.info().makeColorType(kN32_SkColorType),
           image_data_pixmap.rowBytes())) {
     resolver->Reject(MakeGarbageCollected<DOMException>(
         DOMExceptionCode::kInvalidStateError,
@@ -173,7 +177,6 @@ ScriptPromise ShapeDetector::DetectShapesOnImageElement(
   DCHECK_EQ(img->naturalHeight(), static_cast<unsigned>(sk_image->height()));
 
   SkBitmap sk_bitmap;
-
   if (!sk_image || !sk_image->asLegacyBitmap(&sk_bitmap)) {
     resolver->Reject(MakeGarbageCollected<DOMException>(
         DOMExceptionCode::kInvalidStateError,

third_party/blink/web_tests/external/wpt/shape-detection/detection-HTMLCanvasElement.https.html

@@ -11,13 +11,23 @@ const canvasElementTests =
       {
         createDetector: () => { return new FaceDetector(); },
         createCanvas: () => { return document.createElement("canvas"); },
+        pixelFormat: "uint8",
         mockTestName: "FaceDetectionTest",
         detectionResultTest: FaceDetectorDetectionResultTest,
         name: "Face - detect(HTMLCanvasElement)"
       },
+      {
+        createDetector: () => { return new FaceDetector(); },
+        createCanvas: () => { return document.createElement("canvas"); },
+        pixelFormat: "float16",
+        mockTestName: "FaceDetectionTest",
+        detectionResultTest: FaceDetectorDetectionResultTest,
+        name: "Face - detect(HTMLCanvasElementF16Format)"
+      },
       {
         createDetector: () => { return new FaceDetector(); },
         createCanvas: () => { return new OffscreenCanvas(300, 150); },
+        pixelFormat: "uint8",
         mockTestName: "FaceDetectionTest",
         detectionResultTest: FaceDetectorDetectionResultTest,
         name: "Face - detect(OffscreenCanvas)"
@@ -25,13 +35,23 @@ const canvasElementTests =
       {
         createDetector: () => { return new BarcodeDetector(); },
         createCanvas: () => { return document.createElement("canvas"); },
+        pixelFormat: "uint8",
         mockTestName: "BarcodeDetectionTest",
         detectionResultTest: BarcodeDetectorDetectionResultTest,
         name: "Barcode - detect(HTMLCanvasElement)"
       },
+      {
+        createDetector: () => { return new BarcodeDetector(); },
+        createCanvas: () => { return document.createElement("canvas"); },
+        pixelFormat: "float16",
+        mockTestName: "BarcodeDetectionTest",
+        detectionResultTest: BarcodeDetectorDetectionResultTest,
+        name: "Barcode - detect(HTMLCanvasElementF16Format)"
+      },
       {
         createDetector: () => { return new BarcodeDetector(); },
         createCanvas: () => { return new OffscreenCanvas(300, 150); },
+        pixelFormat: "uint8",
         mockTestName: "BarcodeDetectionTest",
         detectionResultTest: BarcodeDetectorDetectionResultTest,
         name: "Barcode - detect(OffscreenCanvas)"
@@ -39,13 +59,23 @@ const canvasElementTests =
       {
         createDetector: () => { return new TextDetector(); },
         createCanvas: () => { return document.createElement("canvas"); },
+        pixelFormat: "uint8",
         mockTestName: "TextDetectionTest",
         detectionResultTest: TextDetectorDetectionResultTest,
         name: "Text - detect(HTMLCanvasElement)"
       },
+      {
+        createDetector: () => { return new TextDetector(); },
+        createCanvas: () => { return document.createElement("canvas"); },
+        pixelFormat: "float16",
+        mockTestName: "TextDetectionTest",
+        detectionResultTest: TextDetectorDetectionResultTest,
+        name: "Text - detect(HTMLCanvasElementF16Format)"
+      },
       {
         createDetector: () => { return new TextDetector(); },
         createCanvas: () => { return new OffscreenCanvas(300, 150); },
+        pixelFormat: "uint8",
         mockTestName: "TextDetectionTest",
         detectionResultTest: TextDetectorDetectionResultTest,
         name: "Text - detect(OffscreenCanvas)"
@@ -59,7 +89,9 @@ for (let canvasElementTest of canvasElementTests) {
     img.src = "/images/green-16x16.png";
     await imgWatcher.wait_for("load");
     const canvas = canvasElementTest.createCanvas();
-    canvas.getContext("2d").drawImage(img, 0, 0);
+    canvas.getContext(
+      "2d", { pixelFormat: canvasElementTest.pixelFormat }).drawImage(
+        img, 0, 0);
 
     const detector = canvasElementTest.createDetector();
     const detectionResult = await detector.detect(canvas);