From cc3ccf0cdf8b72a8edd69b4a57893565d7ccd57f Mon Sep 17 00:00:00 2001
From: Natalie Chouinard <chouinard@google.com>
Date: Tue, 6 Oct 2026 15:44:24 -0400
Subject: [PATCH] Fix configure:invalid_usage for bgra8unorm storage

bgra8unorm with STORAGE_BINDING is a validation error unless
"bgra8unorm-storage" is enabled. Update the test to check this
condition.

Spec: https://gpuweb.github.io/gpuweb/#bgra8unorm-storage

Chrome bug: https://crbug.com/565366976
---
 src/webgpu/web_platform/canvas/configure.spec.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/webgpu/web_platform/canvas/configure.spec.ts b/src/webgpu/web_platform/canvas/configure.spec.ts
index 11a97ef7d689..3a80fd3f3f8d 100644
--- a/src/webgpu/web_platform/canvas/configure.spec.ts
+++ b/src/webgpu/web_platform/canvas/configure.spec.ts
@@ -7,7 +7,7 @@ TODO:
 `;
 
 import { makeTestGroup } from '../../../common/framework/test_group.js';
-import { assert } from '../../../common/util/util.js';
+import { assert, hasFeature } from '../../../common/util/util.js';
 import {
   isValidTextureUsageCombination,
   kCanvasTextureFormats,
@@ -377,7 +377,12 @@ g.test('invalid_usage')
       });
     } else {
       // Otherwise just the normal createTexture() usage validation applies.
-      const invalidUsage = !isValidTextureUsageCombination(usage);
+      const hasStorageUsage = (usage & GPUConst.TextureUsage.STORAGE_BINDING) !== 0;
+      const isUnsupportedBgra8unormStorage =
+        format === 'bgra8unorm' &&
+        hasStorageUsage &&
+        !hasFeature(t.device.features, 'bgra8unorm-storage');
+      const invalidUsage = !isValidTextureUsageCombination(usage) || isUnsupportedBgra8unormStorage;
       t.expectValidationError(() => {
         ctx.configure({ device: t.device, format, usage });
       }, invalidUsage);