desktop_frame_cgimage.h (2036B)
1 /* 2 * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_FRAME_CGIMAGE_H_ 12 #define MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_FRAME_CGIMAGE_H_ 13 14 #include <CoreGraphics/CoreGraphics.h> 15 16 #include <memory> 17 18 #include "modules/desktop_capture/desktop_frame.h" 19 #include "sdk/objc/helpers/scoped_cftyperef.h" 20 21 namespace webrtc { 22 23 class RTC_EXPORT DesktopFrameCGImage final : public DesktopFrame { 24 public: 25 // Create an image containing a snapshot of the display at the time this is 26 // being called. 27 static std::unique_ptr<DesktopFrameCGImage> CreateForDisplay( 28 CGDirectDisplayID display_id); 29 30 // Create an image containing a snaphot of the given window at the time this 31 // is being called. This also works when the window is overlapped or in 32 // another workspace. 33 static std::unique_ptr<DesktopFrameCGImage> CreateForWindow( 34 CGWindowID window_id); 35 36 static std::unique_ptr<DesktopFrameCGImage> CreateFromCGImage( 37 ScopedCFTypeRef<CGImageRef> cg_image); 38 39 ~DesktopFrameCGImage() override; 40 41 DesktopFrameCGImage(const DesktopFrameCGImage&) = delete; 42 DesktopFrameCGImage& operator=(const DesktopFrameCGImage&) = delete; 43 44 private: 45 // This constructor expects `cg_image` to hold a non-null CGImageRef. 46 DesktopFrameCGImage(DesktopSize size, 47 int stride, 48 uint8_t* data, 49 ScopedCFTypeRef<CGImageRef> cg_image, 50 ScopedCFTypeRef<CFDataRef> cg_data); 51 52 const ScopedCFTypeRef<CGImageRef> cg_image_; 53 const ScopedCFTypeRef<CFDataRef> cg_data_; 54 }; 55 56 } // namespace webrtc 57 58 #endif // MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_FRAME_CGIMAGE_H_