diff options
| -rw-r--r-- | src/opengl/qgl.cpp | 5 | ||||
| -rw-r--r-- | src/opengl/qgl.h | 1 | ||||
| -rw-r--r-- | src/opengl/qgl_egl.cpp | 34 | ||||
| -rw-r--r-- | src/opengl/qgl_p.h | 1 |
4 files changed, 28 insertions, 13 deletions
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp index 2a3ce54..32534aa 100644 --- a/src/opengl/qgl.cpp +++ b/src/opengl/qgl.cpp @@ -3810,6 +3810,11 @@ bool QGLWidget::event(QEvent *e) } #if defined(QT_OPENGL_ES) + // A re-parent is likely to destroy the X11 window and re-create it. It is important + // that we free the EGL surface _before_ the winID changes - otherwise we can leak. + if (e->type() == QEvent::ParentAboutToChange) + d->glcx->d_func()->destroyEglSurfaceForDevice(); + if ((e->type() == QEvent::ParentChange) || (e->type() == QEvent::WindowStateChange)) { // The window may have been re-created during re-parent or state change - if so, the EGL // surface will need to be re-created. diff --git a/src/opengl/qgl.h b/src/opengl/qgl.h index 079953f..2076c46 100644 --- a/src/opengl/qgl.h +++ b/src/opengl/qgl.h @@ -546,6 +546,7 @@ private: friend class QGLPixelBuffer; friend class QGLPixelBufferPrivate; friend class QGLContext; + friend class QGLContextPrivate; friend class QGLOverlayWidget; friend class QOpenGLPaintEngine; friend class QGLPaintDevice; diff --git a/src/opengl/qgl_egl.cpp b/src/opengl/qgl_egl.cpp index fbf0349..839e8eb 100644 --- a/src/opengl/qgl_egl.cpp +++ b/src/opengl/qgl_egl.cpp @@ -142,19 +142,7 @@ void QGLContext::reset() d->cleanup(); doneCurrent(); if (d->eglContext) { - if (d->eglSurface != EGL_NO_SURFACE) { -#ifdef Q_WS_X11 - // Make sure we don't call eglDestroySurface on a surface which - // was created for a different winId: - if (d->paintDevice->devType() == QInternal::Widget) { - QGLWidget* w = static_cast<QGLWidget*>(d->paintDevice); - - if (w->d_func()->eglSurfaceWindowId == w->winId()) - eglDestroySurface(d->eglContext->display(), d->eglSurface); - } else -#endif - eglDestroySurface(d->eglContext->display(), d->eglSurface); - } + d->destroyEglSurfaceForDevice(); delete d->eglContext; } d->eglContext = 0; @@ -198,6 +186,26 @@ void QGLContext::swapBuffers() const d->eglContext->swapBuffers(d->eglSurface); } +void QGLContextPrivate::destroyEglSurfaceForDevice() +{ + if (eglSurface != EGL_NO_SURFACE) { +#ifdef Q_WS_X11 + // Make sure we don't call eglDestroySurface on a surface which + // was created for a different winId: + if (paintDevice->devType() == QInternal::Widget) { + QGLWidget* w = static_cast<QGLWidget*>(paintDevice); + + if (w->d_func()->eglSurfaceWindowId == w->winId()) + eglDestroySurface(eglContext->display(), eglSurface); + else + qWarning("WARNING: Potential EGL surface leak!"); + } else +#endif + eglDestroySurface(eglContext->display(), eglSurface); + eglSurface = EGL_NO_SURFACE; + } +} + void QGLWidget::setMouseTracking(bool enable) { QWidget::setMouseTracking(enable); diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h index 11770d3..99c0f33 100644 --- a/src/opengl/qgl_p.h +++ b/src/opengl/qgl_p.h @@ -288,6 +288,7 @@ public: #if defined(QT_OPENGL_ES) QEglContext *eglContext; EGLSurface eglSurface; + void destroyEglSurfaceForDevice(); #elif defined(Q_WS_X11) || defined(Q_WS_MAC) void* cx; #endif |