qeglfswindow.cpp 8.27 KiB
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#include "qeglfswindow.h"
#include "qeglfshooks.h"
#include <qpa/qwindowsysteminterface.h>
#include <qpa/qplatformintegration.h>
#include <private/qguiapplication_p.h>
#include <QtGui/QOpenGLContext>
#include <QtPlatformSupport/private/qeglplatformcursor_p.h>
#include <QtPlatformSupport/private/qeglconvenience_p.h>
#include <QtDebug>
QT_BEGIN_NAMESPACE
QEglFSWindow::QEglFSWindow(QWindow *w)
    : QEGLPlatformWindow(w)
    , m_surface(0)
    , m_window(0)
    , m_flags(0)
QEglFSWindow::~QEglFSWindow()
    destroy();
void QEglFSWindow::create()
    if (m_flags.testFlag(Created))
        return;
    QEGLPlatformWindow::create();
    m_flags = Created;
    if (window()->type() == Qt::Desktop)
        return;
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// Stop if there is already a window backed by a native window and surface. Additional // raster windows will not have their own native window, surface and context. Instead, // they will be composited onto the root window's surface. QEglFSScreen *screen = this->screen(); if (screen->primarySurface() != EGL_NO_SURFACE) { if (isRaster() && screen->compositingWindow()) { m_format = screen->compositingWindow()->format(); return; } #if !defined(Q_OS_ANDROID) || defined(Q_OS_ANDROID_NO_SDK) // We can have either a single OpenGL window or multiple raster windows. // Other combinations cannot work. qFatal("EGLFS: OpenGL windows cannot be mixed with others."); #endif return; } m_flags |= HasNativeWindow; setGeometry(QRect()); // will become fullscreen QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(0, 0), geometry().size())); EGLDisplay display = static_cast<QEglFSScreen *>(screen)->display(); QSurfaceFormat platformFormat = QEglFSHooks::hooks()->surfaceFormatFor(window()->requestedFormat()); m_config = QEglFSIntegration::chooseConfig(display, platformFormat); m_format = q_glFormatFromConfig(display, m_config, platformFormat); resetSurface(); screen->setPrimarySurface(m_surface); if (isRaster()) { QOpenGLContext *context = new QOpenGLContext(QGuiApplication::instance()); context->setFormat(m_format); context->setScreen(window()->screen()); if (!context->create()) qFatal("EGLFS: Failed to create compositing context"); screen->setRootContext(context); screen->setRootWindow(this); } } void QEglFSWindow::destroy() { QEglFSScreen *screen = this->screen(); if (m_flags.testFlag(HasNativeWindow)) { QEGLPlatformCursor *cursor = static_cast<QEGLPlatformCursor *>(screen->cursor()); if (cursor) cursor->resetResources(); if (screen->primarySurface() == m_surface) screen->setPrimarySurface(EGL_NO_SURFACE); invalidateSurface(); } m_flags = 0; screen->removeWindow(this); } // The virtual functions resetSurface and invalidateSurface may get overridden // in derived classes, for example in the Android port, to perform the native // window and surface creation differently. void QEglFSWindow::invalidateSurface() { if (m_surface != EGL_NO_SURFACE) { EGLDisplay display = static_cast<QEglFSScreen *>(screen())->display();
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eglDestroySurface(display, m_surface); m_surface = EGL_NO_SURFACE; } QEglFSHooks::hooks()->destroyNativeWindow(m_window); m_window = 0; } void QEglFSWindow::resetSurface() { EGLDisplay display = static_cast<QEglFSScreen *>(screen())->display(); m_window = QEglFSHooks::hooks()->createNativeWindow(this, QEglFSHooks::hooks()->screenSize(), m_format); m_surface = eglCreateWindowSurface(display, m_config, m_window, NULL); if (m_surface == EGL_NO_SURFACE) { EGLint error = eglGetError(); eglTerminate(display); qFatal("EGL Error : Could not create the egl surface: error = 0x%x\n", error); } } void QEglFSWindow::setVisible(bool visible) { QList<QEGLPlatformWindow *> windows = screen()->windows(); QWindow *wnd = window(); if (wnd->type() != Qt::Desktop) { if (visible) { screen()->addWindow(this); } else { screen()->removeWindow(this); windows = screen()->windows(); if (windows.size()) windows.last()->requestActivateWindow(); } } QWindowSystemInterface::handleExposeEvent(wnd, QRect(QPoint(0, 0), wnd->geometry().size())); if (visible) QWindowSystemInterface::flushWindowSystemEvents(); } void QEglFSWindow::setGeometry(const QRect &r) { QRect rect; bool forceFullscreen = m_flags.testFlag(HasNativeWindow); if (forceFullscreen) rect = screen()->availableGeometry(); else rect = r; QPlatformWindow::setGeometry(rect); // if we corrected the size, trigger a resize event if (rect != r) QWindowSystemInterface::handleGeometryChange(window(), rect, r); } QRect QEglFSWindow::geometry() const { // For yet-to-become-fullscreen windows report the geometry covering the entire // screen. This is particularly important for Quick where the root object may get // sized to some geometry queried before calling create(). if (!m_flags.testFlag(Created) && screen()->primarySurface() == EGL_NO_SURFACE) return screen()->availableGeometry(); return QPlatformWindow::geometry(); } void QEglFSWindow::requestActivateWindow() {
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if (window()->type() != Qt::Desktop) screen()->moveToTop(this); QWindow *wnd = window(); QWindowSystemInterface::handleWindowActivated(wnd); QWindowSystemInterface::handleExposeEvent(wnd, QRect(QPoint(0, 0), wnd->geometry().size())); } void QEglFSWindow::raise() { QWindow *wnd = window(); if (wnd->type() != Qt::Desktop) { screen()->moveToTop(this); QWindowSystemInterface::handleExposeEvent(wnd, QRect(QPoint(0, 0), wnd->geometry().size())); } } void QEglFSWindow::lower() { QList<QEGLPlatformWindow *> windows = screen()->windows(); if (window()->type() != Qt::Desktop && windows.count() > 1) { int idx = windows.indexOf(this); if (idx > 0) { screen()->changeWindowIndex(this, idx - 1); QWindowSystemInterface::handleExposeEvent(windows.last()->window(), QRect(QPoint(0, 0), windows.last()->geometry().size())); } } } EGLSurface QEglFSWindow::surface() const { return m_surface != EGL_NO_SURFACE ? m_surface : screen()->primarySurface(); } QSurfaceFormat QEglFSWindow::format() const { return m_format; } EGLNativeWindowType QEglFSWindow::eglWindow() const { return m_window; } QEglFSScreen *QEglFSWindow::screen() const { return static_cast<QEglFSScreen *>(QPlatformWindow::screen()); } QT_END_NAMESPACE