| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SERVICES_SHAPE_DETECTION_DETECTION_UTILS_MAC_H_ |
| #define SERVICES_SHAPE_DETECTION_DETECTION_UTILS_MAC_H_ |
| |
| #import <CoreImage/CoreImage.h> |
| #include <memory> |
| |
| #include "base/callback.h" |
| #include "base/mac/availability.h" |
| #include "base/mac/scoped_nsobject.h" |
| #include "base/mac/sdk_forward_declarations.h" |
| #include "base/macros.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "ui/gfx/geometry/rect_f.h" |
| |
| namespace shape_detection { |
| |
| // Takes a ScopedSharedBufferHandle with dimensions and produces a new CIImage |
| // with the same contents, or a null scoped_nsobject is something goes wrong. |
| base::scoped_nsobject<CIImage> CreateCIImageFromSkBitmap( |
| const SkBitmap& bitmap); |
| |
| gfx::RectF ConvertCGToGfxCoordinates(CGRect bounds, int height); |
| |
| // This class submits an image analysis request for asynchronous execution on a |
| // dispatch queue with default priority. |
| class API_AVAILABLE(macos(10.13)) VisionAPIAsyncRequestMac { |
| public: |
| // A callback run when the asynchronous execution completes. The callback is |
| // repeating for the instance. |
| using Callback = |
| base::RepeatingCallback<void(VNRequest* request, NSError* error)>; |
| |
| ~VisionAPIAsyncRequestMac(); |
| |
| // Creates an VisionAPIAsyncRequestMac instance which sets |callback| to be |
| // called when the asynchronous action completes. |
| static std::unique_ptr<VisionAPIAsyncRequestMac> Create(Class request_class, |
| Callback callback); |
| |
| // Processes asynchronously an image analysis request and returns results with |
| // |callback_| when the asynchronous request completes, the callers should |
| // only enqueue one request at a timer. |
| bool PerformRequest(const SkBitmap& bitmap); |
| |
| private: |
| VisionAPIAsyncRequestMac(Callback callback, Class request_class); |
| |
| base::scoped_nsobject<VNRequest> request_; |
| const Callback callback_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VisionAPIAsyncRequestMac); |
| }; |
| |
| } // namespace shape_detection |
| |
| #endif // SERVICES_SHAPE_DETECTION_DETECTION_UTILS_MAC_H_ |