diff options
Diffstat (limited to 'src/plugins/platforms/wasm/qwasmcompositor.cpp')
| -rw-r--r-- | src/plugins/platforms/wasm/qwasmcompositor.cpp | 778 |
1 files changed, 92 insertions, 686 deletions
diff --git a/src/plugins/platforms/wasm/qwasmcompositor.cpp b/src/plugins/platforms/wasm/qwasmcompositor.cpp index 72fccd4a2b..ef460f666f 100644 --- a/src/plugins/platforms/wasm/qwasmcompositor.cpp +++ b/src/plugins/platforms/wasm/qwasmcompositor.cpp @@ -1,96 +1,43 @@ -/**************************************************************************** -** -** Copyright (C) 2018 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the plugins of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:GPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3 or (at your option) any later version -** approved by the KDE Free Qt Foundation. The licenses are as published by -** the Free Software Foundation and appearing in the file LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2018 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only #include "qwasmcompositor.h" #include "qwasmwindow.h" -#include "qwasmstylepixmaps_p.h" -#include <QtOpenGL/qopengltexture.h> - -#include <QtGui/private/qwindow_p.h> -#include <QtGui/qopenglcontext.h> -#include <QtGui/qopenglfunctions.h> -#include <QtGui/qoffscreensurface.h> -#include <QtGui/qpainter.h> -#include <private/qpixmapcache_p.h> - -#include <private/qguiapplication_p.h> +#include <private/qeventdispatcher_wasm_p.h> #include <qpa/qwindowsysteminterface.h> -#include <QtCore/qcoreapplication.h> -#include <QtGui/qguiapplication.h> -Q_GUI_EXPORT int qt_defaultDpiX(); +#include <emscripten/html5.h> -QWasmCompositedWindow::QWasmCompositedWindow() - : window(nullptr) - , parentWindow(nullptr) - , flushPending(false) - , visible(false) -{ -} +using namespace emscripten; + +bool QWasmCompositor::m_requestUpdateHoldEnabled = true; -QWasmCompositor::QWasmCompositor(QWasmScreen *screen) - :QObject(screen) - , m_blitter(new QOpenGLTextureBlitter) - , m_needComposit(false) - , m_inFlush(false) - , m_inResize(false) - , m_isEnabled(true) - , m_targetDevicePixelRatio(1) +QWasmCompositor::QWasmCompositor(QWasmScreen *screen) : QObject(screen) { + QWindowSystemInterface::setSynchronousWindowSystemEvents(true); } QWasmCompositor::~QWasmCompositor() { - destroy(); + if (m_requestAnimationFrameId != -1) + emscripten_cancel_animation_frame(m_requestAnimationFrameId); + + // TODO(mikolaj.boc): Investigate if m_isEnabled is needed at all. It seems like a frame should + // not be generated after this instead. + m_isEnabled = false; // prevent frame() from creating a new m_context } -void QWasmCompositor::destroy() +void QWasmCompositor::onWindowTreeChanged(QWasmWindowTreeNodeChangeType changeType, + QWasmWindow *window) { - // Destroy OpenGL resources. This is done here in a separate function - // which can be called while screen() still returns a valid screen - // (which it might not, during destruction). A valid QScreen is - // a requirement for QOffscreenSurface on Wasm since the native - // context is tied to a single canvas. - if (m_context) { - QOffscreenSurface offScreenSurface(screen()->screen()); - offScreenSurface.setFormat(m_context->format()); - offScreenSurface.create(); - m_context->makeCurrent(&offScreenSurface); - for (QWasmWindow *window : m_windowStack) - window->destroy(); - m_blitter.reset(nullptr); - m_context.reset(nullptr); - } - - m_isEnabled = false; // prevent frame() from creating a new m_context + auto allWindows = screen()->allWindows(); + setEnabled(std::any_of(allWindows.begin(), allWindows.end(), [](QWasmWindow *element) { + return !element->context2d().isUndefined(); + })); + if (changeType == QWasmWindowTreeNodeChangeType::NodeRemoval) + m_requestUpdateWindows.remove(window); } void QWasmCompositor::setEnabled(bool enabled) @@ -98,656 +45,115 @@ void QWasmCompositor::setEnabled(bool enabled) m_isEnabled = enabled; } -void QWasmCompositor::addWindow(QWasmWindow *window, QWasmWindow *parentWindow) +// requestUpdate delivery is initially disabled at startup, while Qt completes +// startup tasks such as font loading. This function enables requestUpdate delivery +// again. +bool QWasmCompositor::releaseRequestUpdateHold() { - QWasmCompositedWindow compositedWindow; - compositedWindow.window = window; - compositedWindow.parentWindow = parentWindow; - m_compositedWindows.insert(window, compositedWindow); - - if (parentWindow == 0) - m_windowStack.append(window); - else - m_compositedWindows[parentWindow].childWindows.append(window); - - notifyTopWindowChanged(window); + const bool wasEnabled = m_requestUpdateHoldEnabled; + m_requestUpdateHoldEnabled = false; + return wasEnabled; } -void QWasmCompositor::removeWindow(QWasmWindow *window) +void QWasmCompositor::requestUpdateWindow(QWasmWindow *window, UpdateRequestDeliveryType updateType) { - QWasmWindow *platformWindow = m_compositedWindows[window].parentWindow; - - if (platformWindow) { - QWasmWindow *parentWindow = window; - m_compositedWindows[parentWindow].childWindows.removeAll(window); + auto it = m_requestUpdateWindows.find(window); + if (it == m_requestUpdateWindows.end()) { + m_requestUpdateWindows.insert(window, updateType); + } else { + // Already registered, but upgrade ExposeEventDeliveryType to UpdateRequestDeliveryType. + // if needed, to make sure QWindow::updateRequest's are matched. + if (it.value() == ExposeEventDelivery && updateType == UpdateRequestDelivery) + it.value() = UpdateRequestDelivery; } - m_windowStack.removeAll(window); - m_compositedWindows.remove(window); - - notifyTopWindowChanged(window); + requestUpdate(); } -void QWasmCompositor::setVisible(QWasmWindow *window, bool visible) +// Requests an update/new frame using RequestAnimationFrame +void QWasmCompositor::requestUpdate() { - QWasmCompositedWindow &compositedWindow = m_compositedWindows[window]; - if (compositedWindow.visible == visible) + if (m_requestAnimationFrameId != -1) return; - compositedWindow.visible = visible; - compositedWindow.flushPending = true; - if (visible) - compositedWindow.damage = compositedWindow.window->geometry(); - else - m_globalDamage = compositedWindow.window->geometry(); // repaint previosly covered area. - - requestRedraw(); -} - -void QWasmCompositor::raise(QWasmWindow *window) -{ - if (m_compositedWindows.size() <= 1) - return; - - QWasmCompositedWindow &compositedWindow = m_compositedWindows[window]; - compositedWindow.damage = compositedWindow.window->geometry(); - m_windowStack.removeAll(window); - m_windowStack.append(window); - - notifyTopWindowChanged(window); -} - -void QWasmCompositor::lower(QWasmWindow *window) -{ - if (m_compositedWindows.size() <= 1) + if (m_requestUpdateHoldEnabled) return; - m_windowStack.removeAll(window); - m_windowStack.prepend(window); - QWasmCompositedWindow &compositedWindow = m_compositedWindows[window]; - m_globalDamage = compositedWindow.window->geometry(); // repaint previosly covered area. - - notifyTopWindowChanged(window); -} - -void QWasmCompositor::setParent(QWasmWindow *window, QWasmWindow *parent) -{ - m_compositedWindows[window].parentWindow = parent; - - requestRedraw(); -} - -void QWasmCompositor::flush(QWasmWindow *window, const QRegion ®ion) -{ - QWasmCompositedWindow &compositedWindow = m_compositedWindows[window]; - compositedWindow.flushPending = true; - compositedWindow.damage = region; + static auto frame = [](double frameTime, void *context) -> int { + Q_UNUSED(frameTime); - requestRedraw(); -} + QWasmCompositor *compositor = reinterpret_cast<QWasmCompositor *>(context); -int QWasmCompositor::windowCount() const -{ - return m_windowStack.count(); -} + compositor->m_requestAnimationFrameId = -1; + compositor->deliverUpdateRequests(); - -void QWasmCompositor::redrawWindowContent() -{ - // Redraw window content by sending expose events. This redraw - // will cause a backing store flush, which will call requestRedraw() - // to composit. - for (QWasmWindow *platformWindow : m_windowStack) { - QWindow *window = platformWindow->window(); - QWindowSystemInterface::handleExposeEvent<QWindowSystemInterface::SynchronousDelivery>( - window, QRect(QPoint(0, 0), window->geometry().size())); - } -} - -void QWasmCompositor::requestRedraw() -{ - if (m_needComposit) - return; - - m_needComposit = true; - QCoreApplication::postEvent(this, new QEvent(QEvent::UpdateRequest)); -} - -QWindow *QWasmCompositor::windowAt(QPoint globalPoint, int padding) const -{ - int index = m_windowStack.count() - 1; - // qDebug() << "window at" << "point" << p << "window count" << index; - - while (index >= 0) { - const QWasmCompositedWindow &compositedWindow = m_compositedWindows[m_windowStack.at(index)]; - //qDebug() << "windwAt testing" << compositedWindow.window << - - QRect geometry = compositedWindow.window->windowFrameGeometry() - .adjusted(-padding, -padding, padding, padding); - - if (compositedWindow.visible && geometry.contains(globalPoint)) - return m_windowStack.at(index)->window(); - --index; - } - - return 0; -} - -QWindow *QWasmCompositor::keyWindow() const -{ - return m_windowStack.at(m_windowStack.count() - 1)->window(); -} - -bool QWasmCompositor::event(QEvent *ev) -{ - if (ev->type() == QEvent::UpdateRequest) { - if (m_isEnabled) - frame(); - return true; - } - - return QObject::event(ev); -} - -void QWasmCompositor::blit(QOpenGLTextureBlitter *blitter, QWasmScreen *screen, const QOpenGLTexture *texture, QRect targetGeometry) -{ - QMatrix4x4 m; - m.translate(-1.0f, -1.0f); - - m.scale(2.0f / (float)screen->geometry().width(), - 2.0f / (float)screen->geometry().height()); - - m.translate((float)targetGeometry.width() / 2.0f, - (float)-targetGeometry.height() / 2.0f); - - m.translate(targetGeometry.x(), screen->geometry().height() - targetGeometry.y()); - - m.scale(0.5f * (float)targetGeometry.width(), - 0.5f * (float)targetGeometry.height()); - - blitter->blit(texture->textureId(), m, QOpenGLTextureBlitter::OriginTopLeft); -} - -void QWasmCompositor::drawWindowContent(QOpenGLTextureBlitter *blitter, QWasmScreen *screen, QWasmWindow *window) -{ - QWasmBackingStore *backingStore = window->backingStore(); - if (!backingStore) - return; - - QOpenGLTexture const *texture = backingStore->getUpdatedTexture(); - QPoint windowCanvasPosition = window->geometry().topLeft() - screen->geometry().topLeft(); - QRect windowCanvasGeometry = QRect(windowCanvasPosition, window->geometry().size()); - blit(blitter, screen, texture, windowCanvasGeometry); -} - -QPalette QWasmCompositor::makeWindowPalette() -{ - QPalette palette; - palette.setColor(QPalette::Active, QPalette::Highlight, - palette.color(QPalette::Active, QPalette::Highlight)); - palette.setColor(QPalette::Active, QPalette::Base, - palette.color(QPalette::Active, QPalette::Highlight)); - palette.setColor(QPalette::Inactive, QPalette::Highlight, - palette.color(QPalette::Inactive, QPalette::Dark)); - palette.setColor(QPalette::Inactive, QPalette::Base, - palette.color(QPalette::Inactive, QPalette::Dark)); - palette.setColor(QPalette::Inactive, QPalette::HighlightedText, - palette.color(QPalette::Inactive, QPalette::Window)); - - return palette; -} - -QRect QWasmCompositor::titlebarRect(QWasmTitleBarOptions tb, QWasmCompositor::SubControls subcontrol) -{ - QRect ret; - const int controlMargin = 2; - const int controlHeight = tb.rect.height() - controlMargin *2; - const int delta = controlHeight + controlMargin; - int offset = 0; - - bool isMinimized = tb.state & Qt::WindowMinimized; - bool isMaximized = tb.state & Qt::WindowMaximized; - - ret = tb.rect; - switch (subcontrol) { - case SC_TitleBarLabel: - if (tb.flags & Qt::WindowSystemMenuHint) - ret.adjust(delta, 0, -delta, 0); - break; - case SC_TitleBarCloseButton: - if (tb.flags & Qt::WindowSystemMenuHint) { - ret.adjust(0, 0, -delta, 0); - offset += delta; - } - break; - case SC_TitleBarMaxButton: - if (!isMaximized && tb.flags & Qt::WindowMaximizeButtonHint) { - ret.adjust(0, 0, -delta*2, 0); - offset += (delta +delta); - } - break; - case SC_TitleBarNormalButton: - if (isMinimized && (tb.flags & Qt::WindowMinimizeButtonHint)) { - offset += delta; - } else if (isMaximized && (tb.flags & Qt::WindowMaximizeButtonHint)) { - ret.adjust(0, 0, -delta*2, 0); - offset += (delta +delta); - } - break; - case SC_TitleBarSysMenu: - if (tb.flags & Qt::WindowSystemMenuHint) { - ret.setRect(tb.rect.left() + controlMargin, tb.rect.top() + controlMargin, - controlHeight, controlHeight); - } - break; - default: - break; + return 0; }; - - if (subcontrol != SC_TitleBarLabel && subcontrol != SC_TitleBarSysMenu) { - ret.setRect(tb.rect.right() - offset, tb.rect.top() + controlMargin, - controlHeight, controlHeight); - } - - if (qApp->layoutDirection() == Qt::LeftToRight) - return ret; - - QRect rect = ret; - rect.translate(2 * (tb.rect.right() - ret.right()) + - ret.width() - tb.rect.width(), 0); - - return rect; + m_requestAnimationFrameId = emscripten_request_animation_frame(frame, this); } -int dpiScaled(qreal value) +void QWasmCompositor::deliverUpdateRequests() { - return value * (qreal(qt_defaultDpiX()) / 96.0); -} - -QWasmCompositor::QWasmTitleBarOptions QWasmCompositor::makeTitleBarOptions(const QWasmWindow *window) -{ - int width = window->windowFrameGeometry().width(); - int border = window->borderWidth(); - - QWasmTitleBarOptions titleBarOptions; - - titleBarOptions.rect = QRect(border, border, width - 2 * border, window->titleHeight()); - titleBarOptions.flags = window->window()->flags(); - titleBarOptions.state = window->window()->windowState(); + // We may get new update requests during the window content update below: + // prepare for recording the new update set by setting aside the current + // update set. + auto requestUpdateWindows = m_requestUpdateWindows; + m_requestUpdateWindows.clear(); - bool isMaximized = titleBarOptions.state & Qt::WindowMaximized; // this gets reset when maximized - - if (titleBarOptions.flags & (Qt::WindowTitleHint)) - titleBarOptions.subControls |= SC_TitleBarLabel; - if (titleBarOptions.flags & Qt::WindowMaximizeButtonHint) { - if (isMaximized) - titleBarOptions.subControls |= SC_TitleBarNormalButton; - else - titleBarOptions.subControls |= SC_TitleBarMaxButton; - } - if (titleBarOptions.flags & Qt::WindowSystemMenuHint) { - titleBarOptions.subControls |= SC_TitleBarCloseButton; - titleBarOptions.subControls |= SC_TitleBarSysMenu; + // Update window content, either all windows or a spesific set of windows. Use the correct + // update type: QWindow subclasses expect that requested and delivered updateRequests matches + // exactly. + m_inDeliverUpdateRequest = true; + for (auto it = requestUpdateWindows.constBegin(); it != requestUpdateWindows.constEnd(); ++it) { + auto *window = it.key(); + UpdateRequestDeliveryType updateType = it.value(); + deliverUpdateRequest(window, updateType); } - - titleBarOptions.palette = QWasmCompositor::makeWindowPalette(); - - if (window->window()->isActive()) - titleBarOptions.palette.setCurrentColorGroup(QPalette::Active); - else - titleBarOptions.palette.setCurrentColorGroup(QPalette::Inactive); - - if (window->activeSubControl() != QWasmCompositor::SC_None) - titleBarOptions.subControls = window->activeSubControl(); - - if (!window->window()->title().isEmpty()) - titleBarOptions.titleBarOptionsString = window->window()->title(); - - return titleBarOptions; -} - -void QWasmCompositor::drawWindowDecorations(QOpenGLTextureBlitter *blitter, QWasmScreen *screen, QWasmWindow *window) -{ - int width = window->windowFrameGeometry().width(); - int height = window->windowFrameGeometry().height(); - qreal dpr = window->devicePixelRatio(); - - QImage image(QSize(width * dpr, height * dpr), QImage::Format_RGB32); - image.setDevicePixelRatio(dpr); - QPainter painter(&image); - painter.fillRect(QRect(0, 0, width, height), painter.background()); - - QWasmTitleBarOptions titleBarOptions = makeTitleBarOptions(window); - - drawTitlebarWindow(titleBarOptions, &painter); - - QWasmFrameOptions frameOptions; - frameOptions.rect = QRect(0, 0, width, height); - frameOptions.lineWidth = dpiScaled(4.); - - drawFrameWindow(frameOptions, &painter); - - painter.end(); - - QOpenGLTexture texture(QOpenGLTexture::Target2D); - texture.setMinificationFilter(QOpenGLTexture::Nearest); - texture.setMagnificationFilter(QOpenGLTexture::Nearest); - texture.setWrapMode(QOpenGLTexture::ClampToEdge); - texture.setData(image, QOpenGLTexture::DontGenerateMipMaps); - texture.create(); - texture.bind(); - - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, image.width(), image.height(), GL_RGBA, GL_UNSIGNED_BYTE, - image.constScanLine(0)); - - blit(blitter, screen, &texture, QRect(window->windowFrameGeometry().topLeft(), QSize(width, height))); -} - -void QWasmCompositor::drawFrameWindow(QWasmFrameOptions options, QPainter *painter) -{ - int x = options.rect.x(); - int y = options.rect.y(); - int w = options.rect.width(); - int h = options.rect.height(); - const QColor &c1 = options.palette.light().color(); - const QColor &c2 = options.palette.shadow().color(); - const QColor &c3 = options.palette.midlight().color(); - const QColor &c4 = options.palette.dark().color(); - const QBrush *fill = 0; - - const qreal devicePixelRatio = painter->device()->devicePixelRatio(); - if (!qFuzzyCompare(devicePixelRatio, qreal(1))) { - const qreal inverseScale = qreal(1) / devicePixelRatio; - painter->scale(inverseScale, inverseScale); - x = qRound(devicePixelRatio * x); - y = qRound(devicePixelRatio * y); - w = qRound(devicePixelRatio * w); - h = qRound(devicePixelRatio * h); - } - - QPen oldPen = painter->pen(); - QPoint a[3] = { QPoint(x, y+h-2), QPoint(x, y), QPoint(x+w-2, y) }; - painter->setPen(c1); - painter->drawPolyline(a, 3); - QPoint b[3] = { QPoint(x, y+h-1), QPoint(x+w-1, y+h-1), QPoint(x+w-1, y) }; - painter->setPen(c2); - painter->drawPolyline(b, 3); - if (w > 4 && h > 4) { - QPoint c[3] = { QPoint(x+1, y+h-3), QPoint(x+1, y+1), QPoint(x+w-3, y+1) }; - painter->setPen(c3); - painter->drawPolyline(c, 3); - QPoint d[3] = { QPoint(x+1, y+h-2), QPoint(x+w-2, y+h-2), QPoint(x+w-2, y+1) }; - painter->setPen(c4); - painter->drawPolyline(d, 3); - if (fill) - painter->fillRect(QRect(x+2, y+2, w-4, h-4), *fill); - } - painter->setPen(oldPen); -} - -//from commonstyle.cpp -static QPixmap cachedPixmapFromXPM(const char * const *xpm) -{ - QPixmap result; - const QString tag = QString::asprintf("xpm:0x%p", static_cast<const void*>(xpm)); - if (!QPixmapCache::find(tag, &result)) { - result = QPixmap(xpm); - QPixmapCache::insert(tag, result); - } - return result; -} - -void QWasmCompositor::drawItemPixmap(QPainter *painter, const QRect &rect, int alignment, - const QPixmap &pixmap) const -{ - qreal scale = pixmap.devicePixelRatio(); - QSize size = pixmap.size() / scale; - int x = rect.x(); - int y = rect.y(); - int w = size.width(); - int h = size.height(); - if ((alignment & Qt::AlignVCenter) == Qt::AlignVCenter) - y += rect.size().height()/2 - h/2; - else if ((alignment & Qt::AlignBottom) == Qt::AlignBottom) - y += rect.size().height() - h; - if ((alignment & Qt::AlignRight) == Qt::AlignRight) - x += rect.size().width() - w; - else if ((alignment & Qt::AlignHCenter) == Qt::AlignHCenter) - x += rect.size().width()/2 - w/2; - - QRect aligned = QRect(x, y, w, h); - QRect inter = aligned.intersected(rect); - - painter->drawPixmap(inter.x(), inter.y(), pixmap, inter.x() - aligned.x(), inter.y() - aligned.y(), inter.width() * scale, inter.height() *scale); -} - - -void QWasmCompositor::drawTitlebarWindow(QWasmTitleBarOptions tb, QPainter *painter) -{ - QRect ir; - if (tb.subControls.testFlag(SC_TitleBarLabel)) { - QColor left = tb.palette.highlight().color(); - QColor right = tb.palette.base().color(); - - QBrush fillBrush(left); - if (left != right) { - QPoint p1(tb.rect.x(), tb.rect.top() + tb.rect.height()/2); - QPoint p2(tb.rect.right(), tb.rect.top() + tb.rect.height()/2); - QLinearGradient lg(p1, p2); - lg.setColorAt(0, left); - lg.setColorAt(1, right); - fillBrush = lg; - } - - painter->fillRect(tb.rect, fillBrush); - ir = titlebarRect(tb, SC_TitleBarLabel); - painter->setPen(tb.palette.highlightedText().color()); - painter->drawText(ir.x() + 2, ir.y(), ir.width() - 2, ir.height(), - Qt::AlignLeft | Qt::AlignVCenter | Qt::TextSingleLine, tb.titleBarOptionsString); - } // SC_TitleBarLabel - - bool down = false; - QPixmap pixmap; - - if (tb.subControls.testFlag(SC_TitleBarCloseButton) - && tb.flags & Qt::WindowSystemMenuHint) { - ir = titlebarRect(tb, SC_TitleBarCloseButton); - down = tb.subControls & SC_TitleBarCloseButton && (tb.state & State_Sunken); - pixmap = cachedPixmapFromXPM(qt_close_xpm).scaled(QSize(10, 10)); - drawItemPixmap(painter, ir, Qt::AlignCenter, pixmap); - } //SC_TitleBarCloseButton - - if (tb.subControls.testFlag(SC_TitleBarMaxButton) - && tb.flags & Qt::WindowMaximizeButtonHint - && !(tb.state & Qt::WindowMaximized)) { - ir = titlebarRect(tb, SC_TitleBarMaxButton); - down = tb.subControls & SC_TitleBarMaxButton && (tb.state & State_Sunken); - pixmap = cachedPixmapFromXPM(qt_maximize_xpm).scaled(QSize(10, 10)); - drawItemPixmap(painter, ir, Qt::AlignCenter, pixmap); - } //SC_TitleBarMaxButton - - bool drawNormalButton = (tb.subControls & SC_TitleBarNormalButton) - && (((tb.flags & Qt::WindowMinimizeButtonHint) - && (tb.flags & Qt::WindowMinimized)) - || ((tb.flags & Qt::WindowMaximizeButtonHint) - && (tb.flags & Qt::WindowMaximized))); - - if (drawNormalButton) { - ir = titlebarRect(tb, SC_TitleBarNormalButton); - down = tb.subControls & SC_TitleBarNormalButton && (tb.state & State_Sunken); - pixmap = cachedPixmapFromXPM(qt_normalizeup_xpm).scaled( QSize(10, 10)); - - drawItemPixmap(painter, ir, Qt::AlignCenter, pixmap); - } // SC_TitleBarNormalButton - - if (tb.subControls & SC_TitleBarSysMenu && tb.flags & Qt::WindowSystemMenuHint) { - ir = titlebarRect(tb, SC_TitleBarSysMenu); - pixmap = cachedPixmapFromXPM(qt_menu_xpm).scaled(QSize(10, 10)); - drawItemPixmap(painter, ir, Qt::AlignCenter, pixmap); - } + m_inDeliverUpdateRequest = false; + frame(requestUpdateWindows.keys()); } -void QWasmCompositor::drawShadePanel(QWasmTitleBarOptions options, QPainter *painter) +void QWasmCompositor::deliverUpdateRequest(QWasmWindow *window, UpdateRequestDeliveryType updateType) { - int lineWidth = 1; - QPalette palette = options.palette; - const QBrush *fill = &options.palette.brush(QPalette::Button); - - int x = options.rect.x(); - int y = options.rect.y(); - int w = options.rect.width(); - int h = options.rect.height(); - - const qreal devicePixelRatio = painter->device()->devicePixelRatio(); - if (!qFuzzyCompare(devicePixelRatio, qreal(1))) { - const qreal inverseScale = qreal(1) / devicePixelRatio; - painter->scale(inverseScale, inverseScale); - - x = qRound(devicePixelRatio * x); - y = qRound(devicePixelRatio * y); - w = qRound(devicePixelRatio * w); - h = qRound(devicePixelRatio * h); - lineWidth = qRound(devicePixelRatio * lineWidth); - } - - QColor shade = palette.dark().color(); - QColor light = palette.light().color(); - - if (fill) { - if (fill->color() == shade) - shade = palette.shadow().color(); - if (fill->color() == light) - light = palette.midlight().color(); - } - QPen oldPen = painter->pen(); - QList<QLineF> lines; - lines.reserve(2*lineWidth); - - painter->setPen(light); - int x1, y1, x2, y2; - int i; - x1 = x; - y1 = y2 = y; - x2 = x + w - 2; - for (i = 0; i < lineWidth; i++) // top shadow - lines << QLineF(x1, y1++, x2--, y2++); + QWindow *qwindow = window->window(); - x2 = x1; - y1 = y + h - 2; - for (i = 0; i < lineWidth; i++) // left shado - lines << QLineF(x1++, y1, x2++, y2--); + // Make sure the DPR value for the window is up to date on expose/repaint. + // FIXME: listen to native DPR change events instead, if/when available. + QWindowSystemInterface::handleWindowDevicePixelRatioChanged(qwindow); - painter->drawLines(lines); - lines.clear(); - painter->setPen(shade); - x1 = x; - y1 = y2 = y+h-1; - x2 = x+w-1; - for (i=0; i<lineWidth; i++) { // bottom shadow - lines << QLineF(x1++, y1--, x2, y2--); + // Update by deliverUpdateRequest and expose event according to requested update + // type. If the window has not yet been exposed then we must expose it first regardless + // of update type. The deliverUpdateRequest must still be sent in this case in order + // to maintain correct window update state. + QRect updateRect(QPoint(0, 0), qwindow->geometry().size()); + if (updateType == UpdateRequestDelivery) { + if (qwindow->isExposed() == false) + QWindowSystemInterface::handleExposeEvent(qwindow, updateRect); + window->deliverUpdateRequest(); + } else { + QWindowSystemInterface::handleExposeEvent(qwindow, updateRect); } - x1 = x2; - y1 = y; - y2 = y + h - lineWidth - 1; - for (i = 0; i < lineWidth; i++) // right shadow - lines << QLineF(x1--, y1++, x2--, y2); - - painter->drawLines(lines); - if (fill) // fill with fill color - painter->fillRect(x+lineWidth, y+lineWidth, w-lineWidth*2, h-lineWidth*2, *fill); - painter->setPen(oldPen); // restore pen - } -void QWasmCompositor::drawWindow(QOpenGLTextureBlitter *blitter, QWasmScreen *screen, QWasmWindow *window) +void QWasmCompositor::handleBackingStoreFlush(QWindow *window) { - if (window->window()->type() != Qt::Popup && !(window->m_windowState & Qt::WindowFullScreen)) - drawWindowDecorations(blitter, screen, window); - drawWindowContent(blitter, screen, window); + // Request update to flush the updated backing store content, unless we are currently + // processing an update, in which case the new content will flushed as a part of that update. + if (!m_inDeliverUpdateRequest) + requestUpdateWindow(static_cast<QWasmWindow *>(window->handle())); } -void QWasmCompositor::frame() +void QWasmCompositor::frame(const QList<QWasmWindow *> &windows) { - if (!m_needComposit) - return; - - m_needComposit = false; - - if (!m_isEnabled || m_windowStack.empty() || !screen()) + if (!m_isEnabled || !screen()) return; - QWasmWindow *someWindow = nullptr; - - for (QWasmWindow *window : qAsConst(m_windowStack)) { - if (window->window()->surfaceClass() == QSurface::Window - && qt_window_private(static_cast<QWindow *>(window->window()))->receivedExpose) { - someWindow = window; - break; - } - } - - if (!someWindow) - return; - - if (m_context.isNull()) { - m_context.reset(new QOpenGLContext()); - m_context->setFormat(someWindow->window()->requestedFormat()); - m_context->setScreen(screen()->screen()); - m_context->create(); - } - - bool ok = m_context->makeCurrent(someWindow->window()); - if (!ok) - return; - - if (!m_blitter->isCreated()) - m_blitter->create(); - - qreal dpr = screen()->devicePixelRatio(); - glViewport(0, 0, screen()->geometry().width() * dpr, screen()->geometry().height() * dpr); - - m_context->functions()->glClearColor(0.2, 0.2, 0.2, 1.0); - m_context->functions()->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); - - m_blitter->bind(); - m_blitter->setRedBlueSwizzle(true); - - for (QWasmWindow *window : qAsConst(m_windowStack)) { - QWasmCompositedWindow &compositedWindow = m_compositedWindows[window]; - - if (!compositedWindow.visible) - continue; - - drawWindow(m_blitter.data(), screen(), window); - } - - m_blitter->release(); - - if (someWindow && someWindow->window()->surfaceType() == QSurface::OpenGLSurface) - m_context->swapBuffers(someWindow->window()); -} - -void QWasmCompositor::notifyTopWindowChanged(QWasmWindow *window) -{ - QWindow *modalWindow; - bool blocked = QGuiApplicationPrivate::instance()->isWindowBlocked(window->window(), &modalWindow); - - if (blocked) { - raise(static_cast<QWasmWindow*>(modalWindow->handle())); - return; - } - - requestRedraw(); - QWindowSystemInterface::handleWindowActivated(window->window()); + for (QWasmWindow *window : windows) + window->paint(); } QWasmScreen *QWasmCompositor::screen() { return static_cast<QWasmScreen *>(parent()); } - -QOpenGLContext *QWasmCompositor::context() -{ - return m_context.data(); -} |