| // Copyright 2025 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_WEBAPPS_BROWSER_IMAGE_VISUAL_DIFF_H_ |
| #define COMPONENTS_WEBAPPS_BROWSER_IMAGE_VISUAL_DIFF_H_ |
| |
| #include "base/functional/callback_forward.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| |
| namespace web_app { |
| |
| // Returns true if the two bitmaps have more than a 10% difference, or false |
| // otherwise. A pixel is considered "different" if any of its RGBA values in the |
| // 'after' bitmap does not precisely match its corresponding pixel in the |
| // 'before' bitmap.For example, if a pixel changes from grey ([127, 127, 127, |
| // 255]) to white ([255, 255, 255, 255]), it counts as a difference. Returns |
| // false otherwise. |
| // |
| // This is always called in the threadpool as it is a computationally intensive |
| // task. |
| void CheckImageDiffMoreThanTenPercent(SkBitmap before, |
| SkBitmap after, |
| base::OnceCallback<void(bool)> callback); |
| |
| } // namespace web_app |
| |
| #endif // COMPONENTS_WEBAPPS_BROWSER_IMAGE_VISUAL_DIFF_H_ |
