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++ // Copyright (C) 2022 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "qwasmscreencapture_p.h"
++
++ #include "qwasmmediacapturesession_p.h"
++ #include "qwasmcamera_p.h"
++ #include "qwasmvideosink_p.h"
++
++ #include <QtMultimedia/qmediacapturesession.h>
++
++ QT_BEGIN_NAMESPACE
++
++ Q_LOGGING_CATEGORY(qLcWasmsSreenCapture, "qt.multimedia.wasm.screencapture")
++
++ QWasmScreenCapture::QWasmScreenCapture(QScreenCapture *screenCap)
++ : QPlatformSurfaceCapture(ScreenSource{})
++ {
++ m_screenCapture = screenCap;
++ }
++
++ QWasmScreenCapture::~QWasmScreenCapture() = default;
++
++ QVideoFrameFormat QWasmScreenCapture::frameFormat() const
++ {
++ return {};
++ }
++
++ bool QWasmScreenCapture::setActiveInternal(bool active)
++ {
++ if (active)
++ m_captureSession->setVideoSource("monitor");
++ else
++ m_captureSession->setVideoSource("");
++ return true;
++ }
++
++ void QWasmScreenCapture::setCaptureSession(QPlatformMediaCaptureSession *session)
++ {
++ m_captureSession = static_cast<QWasmMediaCaptureSession *>(session);
++ }
++
++ void QWasmScreenCapture::setVideoStream(emscripten::val stream)
++ {
++ if (m_videoOutput) {
++ emscripten::val videoTracks = stream.call<emscripten::val>("getVideoTracks");
++ if (videoTracks.isNull() || videoTracks.isUndefined()) {
++ return;
++ }
++ emscripten::val videoSettings = videoTracks[0].call<emscripten::val>("getSettings");
++ float pixelRatio = emscripten::val::global("window")["devicePixelRatio"].as<float>();
++
++ if (!videoSettings.isNull() || !videoSettings.isUndefined()) {
++ // double fRate = videoSettings["frameRate"].as<double>(); TODO
++ int width = static_cast<int>(videoSettings["width"].as<int>() / pixelRatio);
++ int height = static_cast<int>(videoSettings["height"].as<int>() / pixelRatio);
++
++ QSize initialSize(width, height);
++ QRect initialRect(QPoint(0, 0),initialSize);
++
++ m_videoOutput->updateVideoElementGeometry(initialRect);
++ }
++
++ emscripten::val videoElement = m_videoOutput->currentVideoElement();
++ if (videoElement.isUndefined()) {
++ qWarning() << "Could not find video element";
++ return;
++ }
++ videoElement.set("srcObject", stream);
++ m_videoOutput->start();
++ }
++ }
++
++ void QWasmScreenCapture::setVideoOutput(QWasmVideoOutput *object)
++ {
++ if (object)
++ m_videoOutput = object;
++ }
++
++ QT_END_NAMESPACE