1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_CAMERA_CONTROLLER_H_ 6 #define CHROME_BROWSER_CHROMEOS_LOGIN_CAMERA_CONTROLLER_H_ 7 #pragma once 8 9 #include "base/memory/scoped_ptr.h" 10 #include "base/threading/thread.h" 11 #include "chrome/browser/chromeos/login/camera.h" 12 #include "third_party/skia/include/core/SkBitmap.h" 13 14 namespace chromeos { 15 16 class CameraController: public Camera::Delegate { 17 public: 18 class Delegate { 19 public: ~Delegate()20 virtual ~Delegate() {} 21 22 // Called when new frame was captured by camera. 23 virtual void OnCaptureSuccess() = 0; 24 25 // Called when camera failed to initialize or get the next frame. 26 virtual void OnCaptureFailure() = 0; 27 }; 28 29 explicit CameraController(Delegate* delegate); 30 virtual ~CameraController(); 31 set_frame_width(int width)32 void set_frame_width(int width) { frame_width_ = width; } frame_width()33 int frame_width() const { return frame_width_; } 34 set_frame_height(int height)35 void set_frame_height(int height) { frame_height_ = height; } frame_height()36 int frame_height() const { return frame_height_; } 37 38 // Initializes camera and starts video capturing. 39 void Start(); 40 41 // Stops video capturing and deinitializes camera. 42 void Stop(); 43 44 // Returns the last captured frame from the camera. 45 void GetFrame(SkBitmap* frame) const; 46 47 // Camera::Delegate implementation: 48 virtual void OnInitializeSuccess(); 49 virtual void OnInitializeFailure(); 50 virtual void OnStartCapturingSuccess(); 51 virtual void OnStartCapturingFailure(); 52 virtual void OnCaptureSuccess(); 53 virtual void OnCaptureFailure(); 54 55 private: 56 // Size of frame we want to receive. 57 int frame_width_; 58 int frame_height_; 59 60 // Object that handles video capturing. 61 scoped_refptr<Camera> camera_; 62 63 // Counts how many times in a row capture failed. 64 int capture_failure_counter_; 65 66 // Counts how many times camera initialization failed. 67 int camera_init_failure_counter_; 68 69 // Thread for camera to work on. 70 scoped_ptr<base::Thread> camera_thread_; 71 72 Delegate* delegate_; 73 74 DISALLOW_COPY_AND_ASSIGN(CameraController); 75 }; 76 77 } // namespace chromeos 78 79 #endif // CHROME_BROWSER_CHROMEOS_LOGIN_CAMERA_CONTROLLER_H_ 80 81