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/*
* 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.
*/
#include "modules/desktop_capture/mac/desktop_frame_provider.h"
#include <utility>
#include "modules/desktop_capture/mac/desktop_frame_cgimage.h"
#include "modules/desktop_capture/mac/desktop_frame_iosurface.h"
namespace webrtc {
DesktopFrameProvider::DesktopFrameProvider(bool allow_iosurface)
: allow_iosurface_(allow_iosurface) {
thread_checker_.Detach();
}
DesktopFrameProvider::~DesktopFrameProvider() {
RTC_DCHECK(thread_checker_.IsCurrent());
Release();
}
std::unique_ptr<DesktopFrame> DesktopFrameProvider::TakeLatestFrameForDisplay(
CGDirectDisplayID display_id) {
RTC_DCHECK(thread_checker_.IsCurrent());
if (!allow_iosurface_ || !io_surfaces_[display_id]) {
// Regenerate a snapshot. If iosurface is on it will be empty until the
// stream handler is called.
return DesktopFrameCGImage::CreateForDisplay(display_id);
}
return io_surfaces_[display_id]->Share();
}
void DesktopFrameProvider::InvalidateIOSurface(CGDirectDisplayID display_id,
rtc::ScopedCFTypeRef<IOSurfaceRef> io_surface) {
RTC_DCHECK(thread_checker_.IsCurrent());
if (!allow_iosurface_) {
return;
}
std::unique_ptr<DesktopFrameIOSurface> desktop_frame_iosurface =
DesktopFrameIOSurface::Wrap(io_surface);
io_surfaces_[display_id] = desktop_frame_iosurface ?
SharedDesktopFrame::Wrap(std::move(desktop_frame_iosurface)) :
nullptr;
}
void DesktopFrameProvider::Release() {
RTC_DCHECK(thread_checker_.IsCurrent());
if (!allow_iosurface_) {
return;
}
io_surfaces_.clear();
}
} // namespace webrtc
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