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Diffstat (limited to 'third_party/libwebrtc/modules/desktop_capture/mac/screen_capturer_mac.h')
-rw-r--r-- | third_party/libwebrtc/modules/desktop_capture/mac/screen_capturer_mac.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/desktop_capture/mac/screen_capturer_mac.h b/third_party/libwebrtc/modules/desktop_capture/mac/screen_capturer_mac.h new file mode 100644 index 0000000000..7be05cc639 --- /dev/null +++ b/third_party/libwebrtc/modules/desktop_capture/mac/screen_capturer_mac.h @@ -0,0 +1,128 @@ +/* + * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef MODULES_DESKTOP_CAPTURE_MAC_SCREEN_CAPTURER_MAC_H_ +#define MODULES_DESKTOP_CAPTURE_MAC_SCREEN_CAPTURER_MAC_H_ + +#include <CoreGraphics/CoreGraphics.h> + +#include <memory> +#include <vector> + +#include "api/sequence_checker.h" +#include "modules/desktop_capture/desktop_capture_options.h" +#include "modules/desktop_capture/desktop_capturer.h" +#include "modules/desktop_capture/desktop_frame.h" +#include "modules/desktop_capture/desktop_geometry.h" +#include "modules/desktop_capture/desktop_region.h" +#include "modules/desktop_capture/mac/desktop_configuration.h" +#include "modules/desktop_capture/mac/desktop_configuration_monitor.h" +#include "modules/desktop_capture/mac/desktop_frame_provider.h" +#include "modules/desktop_capture/screen_capture_frame_queue.h" +#include "modules/desktop_capture/screen_capturer_helper.h" +#include "modules/desktop_capture/shared_desktop_frame.h" + +namespace webrtc { + +class DisplayStreamManager; + +// A class to perform video frame capturing for mac. +class ScreenCapturerMac final : public DesktopCapturer { + public: + ScreenCapturerMac( + rtc::scoped_refptr<DesktopConfigurationMonitor> desktop_config_monitor, + bool detect_updated_region, + bool allow_iosurface); + ~ScreenCapturerMac() override; + + ScreenCapturerMac(const ScreenCapturerMac&) = delete; + ScreenCapturerMac& operator=(const ScreenCapturerMac&) = delete; + + // TODO(julien.isorce): Remove Init() or make it private. + bool Init(); + + // DesktopCapturer interface. + void Start(Callback* callback) override; + void CaptureFrame() override; + void SetExcludedWindow(WindowId window) override; + bool GetSourceList(SourceList* screens) override; + bool SelectSource(SourceId id) override; + + private: + // Returns false if the selected screen is no longer valid. + bool CgBlit(const DesktopFrame& frame, const DesktopRegion& region); + + // Called when the screen configuration is changed. + void ScreenConfigurationChanged(); + + bool RegisterRefreshAndMoveHandlers(); + void UnregisterRefreshAndMoveHandlers(); + + void ScreenRefresh(CGDirectDisplayID display_id, + CGRectCount count, + const CGRect* rect_array, + DesktopVector display_origin, + IOSurfaceRef io_surface); + void ReleaseBuffers(); + + std::unique_ptr<DesktopFrame> CreateFrame(); + + const bool detect_updated_region_; + + Callback* callback_ = nullptr; + + // Queue of the frames buffers. + ScreenCaptureFrameQueue<SharedDesktopFrame> queue_; + + // Current display configuration. + MacDesktopConfiguration desktop_config_; + + // Currently selected display, or 0 if the full desktop is selected. On OS X + // 10.6 and before, this is always 0. + CGDirectDisplayID current_display_ = 0; + + // The physical pixel bounds of the current screen. + DesktopRect screen_pixel_bounds_; + + // The dip to physical pixel scale of the current screen. + float dip_to_pixel_scale_ = 1.0f; + + // A thread-safe list of invalid rectangles, and the size of the most + // recently captured screen. + ScreenCapturerHelper helper_; + + // Contains an invalid region from the previous capture. + DesktopRegion last_invalid_region_; + + // Monitoring display reconfiguration. + rtc::scoped_refptr<DesktopConfigurationMonitor> desktop_config_monitor_; + + CGWindowID excluded_window_ = 0; + + // List of streams, one per screen. + std::vector<CGDisplayStreamRef> display_streams_; + + // Container holding latest state of the snapshot per displays. + DesktopFrameProvider desktop_frame_provider_; + + // Start, CaptureFrame and destructor have to called in the same thread. + SequenceChecker thread_checker_; + + // Used to force CaptureFrame to update it's screen configuration + // and reregister event handlers. This ensure that this + // occurs on the ScreenCapture thread. Read and written from + // both the VideoCapture thread and ScreenCapture thread. + // Protected by desktop_config_monitor_. + bool update_screen_configuration_ = false; +}; + +} // namespace webrtc + +#endif // MODULES_DESKTOP_CAPTURE_MAC_SCREEN_CAPTURER_MAC_H_ |