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5ae9b260ff
Current implementation has mouse cursor as part of the screen itself which means that everytime a cursor changes location, we have to update whole screen content, which brings unnecessary load overhead. Using our own mouse cursor monitor implementation allows us to track only mouse cursor changes and update them separately for much better performance. Bug: webrtc:13429 Change-Id: I224e9145f0bc7e45eafe4490de160f2ad4c8b545 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/244507 Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Reviewed-by: Mark Foltz <mfoltz@chromium.org> Commit-Queue: Mark Foltz <mfoltz@chromium.org> Cr-Commit-Position: refs/heads/main@{#36011}
71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
/*
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* Copyright 2022 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_DESKTOP_CAPTURE_LINUX_WAYLAND_SHARED_SCREENCAST_STREAM_H_
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#define MODULES_DESKTOP_CAPTURE_LINUX_WAYLAND_SHARED_SCREENCAST_STREAM_H_
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#include <memory>
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#include "absl/types/optional.h"
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#include "api/ref_counted_base.h"
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#include "api/scoped_refptr.h"
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#include "modules/desktop_capture/desktop_frame.h"
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#include "modules/desktop_capture/mouse_cursor.h"
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#include "rtc_base/system/rtc_export.h"
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namespace webrtc {
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class SharedScreenCastStreamPrivate;
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class RTC_EXPORT SharedScreenCastStream
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: public rtc::RefCountedNonVirtual<SharedScreenCastStream> {
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public:
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static rtc::scoped_refptr<SharedScreenCastStream> CreateDefault();
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bool StartScreenCastStream(uint32_t stream_node_id, int fd);
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void StopScreenCastStream();
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// Below functions return the most recent information we get from a
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// PipeWire buffer on each Process() callback. This assumes that we
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// managed to successfuly connect to a PipeWire stream provided by the
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// compositor (based on stream parameters). The cursor data are obtained
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// from spa_meta_cursor stream metadata and therefore the cursor is not
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// part of actual screen/window frame.
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// Returns the most recent screen/window frame we obtained from PipeWire
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// buffer. Will return an empty frame in case we didn't manage to get a frame
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// from PipeWire buffer.
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std::unique_ptr<DesktopFrame> CaptureFrame();
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// Returns the most recent mouse cursor image. Will return an nullptr cursor
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// in case we didn't manage to get a cursor from PipeWire buffer. NOTE: the
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// cursor image might not be updated on every cursor location change, but
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// actually only when its shape changes.
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std::unique_ptr<MouseCursor> CaptureCursor();
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// Returns the most recent mouse cursor position. Will not return a value in
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// case we didn't manage to get it from PipeWire buffer.
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absl::optional<DesktopVector> CaptureCursorPosition();
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~SharedScreenCastStream();
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protected:
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SharedScreenCastStream();
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private:
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SharedScreenCastStream(const SharedScreenCastStream&) = delete;
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SharedScreenCastStream& operator=(const SharedScreenCastStream&) = delete;
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std::unique_ptr<SharedScreenCastStreamPrivate> private_;
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};
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} // namespace webrtc
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#endif // MODULES_DESKTOP_CAPTURE_LINUX_WAYLAND_SHARED_SCREENCAST_STREAM_H_
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