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-rw-r--r--src/opengl/qgl.cpp58
-rw-r--r--src/opengl/qgl.h15
-rw-r--r--src/opengl/qgl_qpa.cpp93
-rw-r--r--src/opengl/qglpixmapfilter.cpp2
-rw-r--r--src/opengl/qpixmapdata_gl.cpp30
-rw-r--r--src/opengl/qwindowsurface_gl.cpp32
-rw-r--r--src/opengl/qwindowsurface_gl_p.h4
7 files changed, 196 insertions, 38 deletions
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index cf45239..dc7a333 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -79,6 +79,10 @@
#include <private/qglwindowsurface_qws_p.h>
#endif
+#ifdef Q_WS_QPA
+#include <QtGui/QPlatformGLContext>
+#endif
+
#include <qglpixelbuffer.h>
#include <qglframebufferobject.h>
@@ -117,7 +121,9 @@ struct QGLThreadContext {
QGLContext *context;
};
+#ifndef Q_WS_QPA
static QThreadStorage<QGLThreadContext *> qgl_context_storage;
+#endif
Q_GLOBAL_STATIC(QGLFormat, qgl_default_format)
@@ -3298,11 +3304,16 @@ bool QGLContext::areSharing(const QGLContext *context1, const QGLContext *contex
bool QGLContext::create(const QGLContext* shareContext)
{
Q_D(QGLContext);
+#ifdef Q_WS_QPA
+ if (!d->paintDevice && !d->platformContext)
+#else
if (!d->paintDevice)
+#endif
return false;
+
reset();
d->valid = chooseContext(shareContext);
- if (d->valid && d->paintDevice->devType() == QInternal::Widget) {
+ if (d->valid && d->paintDevice && d->paintDevice->devType() == QInternal::Widget) {
QWidgetPrivate *wd = qt_widget_private(static_cast<QWidget *>(d->paintDevice));
wd->usesDoubleBufferedGLContext = d->glFormat.doubleBuffer();
}
@@ -3381,14 +3392,24 @@ void QGLContext::setInitialized(bool on)
const QGLContext* QGLContext::currentContext()
{
+#ifdef Q_WS_QPA
+ if (const QPlatformGLContext *threadContext = QPlatformGLContext::currentContext()) {
+ return QGLContext::fromPlatformGLContext(const_cast<QPlatformGLContext *>(threadContext));
+ }
+ return 0;
+#else
QGLThreadContext *threadContext = qgl_context_storage.localData();
if (threadContext)
return threadContext->context;
return 0;
+#endif //Q_WS_QPA
}
void QGLContextPrivate::setCurrentContext(QGLContext *context)
{
+#ifdef Q_WS_QPA
+ Q_UNUSED(context);
+#else
QGLThreadContext *threadContext = qgl_context_storage.localData();
if (!threadContext) {
if (!QThread::currentThread()) {
@@ -3401,6 +3422,7 @@ void QGLContextPrivate::setCurrentContext(QGLContext *context)
}
threadContext->context = context;
QGLContext::currentCtx = context; // XXX: backwards-compat, not thread-safe
+#endif
}
/*!
@@ -3757,7 +3779,24 @@ QGLWidget::QGLWidget(QWidget *parent, const QGLWidget* shareWidget, Qt::WindowFl
setAttribute(Qt::WA_PaintOnScreen);
setAttribute(Qt::WA_NoSystemBackground);
setAutoFillBackground(true); // for compatibility
+#ifdef Q_WS_QPA
+ QPlatformWindowFormat platformFormat = QGLFormat::toPlatformWindowFormat(QGLFormat::defaultFormat());
+ platformFormat.setUseDefaultSharedContext(false);
+ if (shareWidget && shareWidget->d_func()->glcx) {
+ QPlatformGLContext *sharedPlatformContext = shareWidget->d_func()->glcx->d_func()->platformContext;
+ platformFormat.setSharedContext(sharedPlatformContext);
+ }
+ setPlatformWindowFormat(platformFormat);
+ winId(); // create window;
+ QGLContext *glContext = 0;
+ if (platformWindow())
+ glContext = QGLContext::fromPlatformGLContext(platformWindow()->glContext());
+ if (glContext){
+ d->init(glContext,shareWidget);
+ }
+#else
d->init(new QGLContext(QGLFormat::defaultFormat(), this), shareWidget);
+#endif
}
@@ -3797,7 +3836,24 @@ QGLWidget::QGLWidget(const QGLFormat &format, QWidget *parent, const QGLWidget*
setAttribute(Qt::WA_PaintOnScreen);
setAttribute(Qt::WA_NoSystemBackground);
setAutoFillBackground(true); // for compatibility
+#ifdef Q_WS_QPA
+ QPlatformWindowFormat platformFormat = QGLFormat::toPlatformWindowFormat(format);
+ platformFormat.setUseDefaultSharedContext(false);
+ if (shareWidget && shareWidget->d_func()->glcx) {
+ QPlatformGLContext *sharedPlatformContext = shareWidget->d_func()->glcx->d_func()->platformContext;
+ platformFormat.setSharedContext(sharedPlatformContext);
+ }
+ setPlatformWindowFormat(platformFormat);
+ winId(); // create window;
+ QGLContext *glContext = 0;
+ if (platformWindow())
+ glContext = QGLContext::fromPlatformGLContext(platformWindow()->glContext());
+ if (glContext){
+ d->init(glContext,shareWidget);
+ }
+#else
d->init(new QGLContext(format, this), shareWidget);
+#endif
}
/*!
diff --git a/src/opengl/qgl.h b/src/opengl/qgl.h
index 4f10e5c..ff135fa 100644
--- a/src/opengl/qgl.h
+++ b/src/opengl/qgl.h
@@ -48,6 +48,10 @@
#include <QtCore/qmap.h>
#include <QtCore/qscopedpointer.h>
+#ifdef Q_WS_QPA
+#include <QtGui/QPlatformWindowFormat>
+#endif
+
QT_BEGIN_HEADER
#if defined(Q_WS_WIN)
@@ -270,6 +274,10 @@ public:
static OpenGLVersionFlags openGLVersionFlags();
+#if defined(Q_WS_QPA)
+ static QGLFormat fromPlatformWindowFormat(const QPlatformWindowFormat &format);
+ static QPlatformWindowFormat toPlatformWindowFormat(const QGLFormat &format);
+#endif
private:
QGLFormatPrivate *d;
@@ -375,6 +383,9 @@ public:
static const QGLContext* currentContext();
+#ifdef Q_WS_QPA
+ static QGLContext *fromPlatformGLContext(QPlatformGLContext *platformContext);
+#endif
protected:
virtual bool chooseContext(const QGLContext* shareContext = 0);
@@ -404,6 +415,10 @@ protected:
static QGLContext* currentCtx;
private:
+#ifdef Q_WS_QPA
+ QGLContext(QPlatformGLContext *platformContext);
+#endif
+
QScopedPointer<QGLContextPrivate> d_ptr;
friend class QGLPixelBuffer;
diff --git a/src/opengl/qgl_qpa.cpp b/src/opengl/qgl_qpa.cpp
index 49c0860..415e915 100644
--- a/src/opengl/qgl_qpa.cpp
+++ b/src/opengl/qgl_qpa.cpp
@@ -52,7 +52,7 @@
QT_BEGIN_NAMESPACE
-static QGLFormat qt_platformwindowformat_to_glformat(const QPlatformWindowFormat &format)
+QGLFormat QGLFormat::fromPlatformWindowFormat(const QPlatformWindowFormat &format)
{
QGLFormat retFormat;
retFormat.setAccum(format.accum());
@@ -83,7 +83,7 @@ static QGLFormat qt_platformwindowformat_to_glformat(const QPlatformWindowFormat
return retFormat;
}
-static QPlatformWindowFormat qt_glformat_to_platformwindowformat(const QGLFormat &format)
+QPlatformWindowFormat QGLFormat::toPlatformWindowFormat(const QGLFormat &format)
{
QPlatformWindowFormat retFormat;
retFormat.setAccum(format.accum());
@@ -120,27 +120,49 @@ bool QGLFormat::hasOpenGL()
return QApplicationPrivate::platformIntegration()->hasOpenGL();
}
+void qDeleteQGLContext(void *handle)
+{
+ QGLContext *context = static_cast<QGLContext *>(handle);
+ delete context;
+}
+
bool QGLContext::chooseContext(const QGLContext* shareContext)
{
Q_D(QGLContext);
- if (!d->paintDevice || d->paintDevice->devType() != QInternal::Widget) {
+ if(!d->paintDevice || d->paintDevice->devType() != QInternal::Widget) {
d->valid = false;
}else {
QWidget *widget = static_cast<QWidget *>(d->paintDevice);
if (!widget->platformWindow()){
QGLFormat glformat = format();
- QPlatformWindowFormat winFormat = qt_glformat_to_platformwindowformat(glformat);
+ QPlatformWindowFormat winFormat = QGLFormat::toPlatformWindowFormat(glformat);
if (shareContext) {
winFormat.setSharedContext(shareContext->d_func()->platformContext);
}
winFormat.setWindowApi(QPlatformWindowFormat::OpenGL);
+ winFormat.setWindowSurface(false);
widget->setPlatformWindowFormat(winFormat);
widget->winId();//make window
}
d->platformContext = widget->platformWindow()->glContext();
Q_ASSERT(d->platformContext);
- d->glFormat = qt_platformwindowformat_to_glformat(d->platformContext->platformWindowFormat());
+ d->glFormat = QGLFormat::fromPlatformWindowFormat(d->platformContext->platformWindowFormat());
d->valid =(bool) d->platformContext;
+ if (d->valid) {
+ d->platformContext->setQGLContextHandle(this,qDeleteQGLContext);
+ }
+ }
+
+ if (d->valid) {
+ QPlatformGLContext *sharedPlatformGLContext = d->platformContext->platformWindowFormat().sharedGLContext();
+ if (sharedPlatformGLContext) {
+ QGLContext *actualSharedContext = QGLContext::fromPlatformGLContext(sharedPlatformGLContext);
+ if (actualSharedContext == shareContext) {
+ d->sharing = true;//Will add combination in QGLContext::create
+ }else {
+ QGLContextGroup::addShare(this,actualSharedContext);
+ }
+ }
}
return d->valid;
@@ -159,20 +181,30 @@ void QGLContext::reset()
d->transpColor = QColor();
d->initDone = false;
QGLContextGroup::removeShare(this);
+ if (d->platformContext) {
+ d->platformContext->setQGLContextHandle(0,0);
+ }
}
void QGLContext::makeCurrent()
{
Q_D(QGLContext);
d->platformContext->makeCurrent();
- QGLContextPrivate::setCurrentContext(this);
+
+ if (!d->workaroundsCached) {
+ d->workaroundsCached = true;
+ const char *renderer = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
+ if (renderer && strstr(renderer, "Mali")) {
+ d->workaround_brokenFBOReadBack = true;
+ }
+ }
+
}
void QGLContext::doneCurrent()
{
Q_D(QGLContext);
d->platformContext->doneCurrent();
- QGLContextPrivate::setCurrentContext(0);
}
void QGLContext::swapBuffers() const
@@ -196,10 +228,9 @@ void QGLWidget::setContext(QGLContext *context,
qWarning("QGLWidget::setContext: Cannot set null context");
return;
}
- if (!context->deviceIsPixmap() && context->device() != this) {
- qWarning("QGLWidget::setContext: Context must refer to this widget");
- return;
- }
+
+ if (context->device() == 0) // a context may refere to more than 1 window.
+ context->setDevice(this); //but its better to point to 1 of them than none of them.
QGLContext* oldcx = d->glcx;
d->glcx = context;
@@ -244,22 +275,23 @@ class QGLTemporaryContextPrivate
{
public:
QWidget *widget;
- QGLContext *context;
+ QPlatformGLContext *context;
};
QGLTemporaryContext::QGLTemporaryContext(bool, QWidget *)
: d(new QGLTemporaryContextPrivate)
{
- d->context = const_cast<QGLContext *>(QGLContext::currentContext());
+ d->context = const_cast<QPlatformGLContext *>(QPlatformGLContext::currentContext());
if (d->context)
d->context->doneCurrent();
d->widget = new QWidget;
d->widget->setGeometry(0,0,3,3);
QPlatformWindowFormat format = d->widget->platformWindowFormat();
format.setWindowApi(QPlatformWindowFormat::OpenGL);
+ format.setWindowSurface(false);
+ d->widget->setPlatformWindowFormat(format);
d->widget->winId();
-
d->widget->platformWindow()->glContext()->makeCurrent();
}
@@ -294,11 +326,8 @@ bool QGLWidget::event(QEvent *e)
{
Q_D(QGLWidget);
if (e->type() == QEvent::WinIdChange) {
- if (d->glcx->isValid()) {
- if (QGLContext::currentContext() == d->glcx)
- QGLContextPrivate::setCurrentContext(0); //Its not valid anymore
- setContext(new QGLContext(d->glcx->requestedFormat(), this));
-
+ if (platformWindow()) {
+ d->glcx = QGLContext::fromPlatformGLContext(platformWindow()->glContext());
}
}
return QWidget::event(e);
@@ -342,4 +371,30 @@ void QGLWidget::setColormap(const QGLColormap & c)
Q_UNUSED(c);
}
+QGLContext::QGLContext(QPlatformGLContext *platformContext)
+ : d_ptr(new QGLContextPrivate(this))
+{
+ Q_D(QGLContext);
+ d->init(0,QGLFormat::fromPlatformWindowFormat(platformContext->platformWindowFormat()));
+ d->platformContext = platformContext;
+}
+
+QGLContext *QGLContext::fromPlatformGLContext(QPlatformGLContext *platformContext)
+{
+ if (!platformContext)
+ return 0;
+ if (platformContext->qGLContextHandle()) {
+ return reinterpret_cast<QGLContext *>(platformContext->qGLContextHandle());
+ }
+ QGLContext *glContext = new QGLContext(platformContext);
+ //Dont call create on context. This can cause the platformFormat to be set on the widget, which
+ //will cause the platformWindow to be recreated.
+ glContext->d_func()->platformContext->setQGLContextHandle(glContext,qDeleteQGLContext);
+ QGLFormat format = QGLFormat::fromPlatformWindowFormat(platformContext->platformWindowFormat());
+ glContext->d_func()->glFormat = format;
+ glContext->d_func()->valid = true;
+
+ return glContext;
+}
+
QT_END_NAMESPACE
diff --git a/src/opengl/qglpixmapfilter.cpp b/src/opengl/qglpixmapfilter.cpp
index 73d698c..6c20aae 100644
--- a/src/opengl/qglpixmapfilter.cpp
+++ b/src/opengl/qglpixmapfilter.cpp
@@ -125,7 +125,7 @@ protected:
bool processGL(QPainter *painter, const QPointF &pos, const QPixmap &src, const QRectF &srcRect) const;
};
-extern QGLWidget *qt_gl_share_widget();
+extern const QGLContext *qt_gl_share_context();
QPixmapFilter *QGL2PaintEngineEx::pixmapFilter(int type, const QPixmapFilter *prototype)
{
diff --git a/src/opengl/qpixmapdata_gl.cpp b/src/opengl/qpixmapdata_gl.cpp
index cd7f0c2..1cf5bd7 100644
--- a/src/opengl/qpixmapdata_gl.cpp
+++ b/src/opengl/qpixmapdata_gl.cpp
@@ -58,7 +58,7 @@
QT_BEGIN_NAMESPACE
-extern QGLWidget* qt_gl_share_widget();
+extern const QGLContext* qt_gl_share_context();
/*!
\class QGLFramebufferObjectPool
@@ -261,14 +261,14 @@ QGLPixmapData::QGLPixmapData(PixelType type)
QGLPixmapData::~QGLPixmapData()
{
- QGLWidget *shareWidget = qt_gl_share_widget();
- if (!shareWidget)
+ const QGLContext *shareContext = qt_gl_share_context();
+ if (!shareContext)
return;
delete m_engine;
if (m_texture.id) {
- QGLShareContextScope ctx(shareWidget->context());
+ QGLShareContextScope ctx(shareContext);
glDeleteTextures(1, &m_texture.id);
}
}
@@ -288,7 +288,7 @@ bool QGLPixmapData::isValidContext(const QGLContext *ctx) const
if (ctx == m_ctx)
return true;
- const QGLContext *share_ctx = qt_gl_share_widget()->context();
+ const QGLContext *share_ctx = qt_gl_share_context();
return ctx == share_ctx || QGLContext::areSharing(ctx, share_ctx);
}
@@ -308,7 +308,7 @@ void QGLPixmapData::resize(int width, int height)
d = pixelType() == QPixmapData::PixmapType ? 32 : 1;
if (m_texture.id) {
- QGLShareContextScope ctx(qt_gl_share_widget()->context());
+ QGLShareContextScope ctx(qt_gl_share_context());
glDeleteTextures(1, &m_texture.id);
m_texture.id = 0;
}
@@ -325,7 +325,7 @@ void QGLPixmapData::ensureCreated() const
m_dirty = false;
- QGLShareContextScope ctx(qt_gl_share_widget()->context());
+ QGLShareContextScope ctx(qt_gl_share_context());
m_ctx = ctx;
const GLenum internal_format = m_hasAlpha ? GL_RGBA : GL_RGB;
@@ -399,7 +399,7 @@ void QGLPixmapData::fromImage(const QImage &image,
d = m_source.depth();
if (m_texture.id) {
- QGLShareContextScope ctx(qt_gl_share_widget()->context());
+ QGLShareContextScope ctx(qt_gl_share_context());
glDeleteTextures(1, &m_texture.id);
m_texture.id = 0;
}
@@ -420,7 +420,7 @@ bool QGLPixmapData::fromFile(const QString &filename, const char *format,
resize(0, 0);
data = file.readAll();
file.close();
- QGLShareContextScope ctx(qt_gl_share_widget()->context());
+ QGLShareContextScope ctx(qt_gl_share_context());
QSize size = m_texture.bindCompressedTexture
(data.constData(), data.size(), format);
if (!size.isEmpty()) {
@@ -446,7 +446,7 @@ bool QGLPixmapData::fromData(const uchar *buffer, uint len, const char *format,
const char *buf = reinterpret_cast<const char *>(buffer);
if (m_texture.canBindCompressedTexture(buf, int(len), format, &alpha)) {
resize(0, 0);
- QGLShareContextScope ctx(qt_gl_share_widget()->context());
+ QGLShareContextScope ctx(qt_gl_share_context());
QSize size = m_texture.bindCompressedTexture(buf, int(len), format);
if (!size.isEmpty()) {
w = size.width();
@@ -479,7 +479,7 @@ void QGLPixmapData::copy(const QPixmapData *data, const QRect &rect)
const QGLPixmapData *other = static_cast<const QGLPixmapData *>(data);
if (other->m_renderFbo) {
- QGLShareContextScope ctx(qt_gl_share_widget()->context());
+ QGLShareContextScope ctx(qt_gl_share_context());
resize(rect.width(), rect.height());
m_hasAlpha = other->m_hasAlpha;
@@ -593,7 +593,7 @@ QImage QGLPixmapData::toImage() const
ensureCreated();
}
- QGLShareContextScope ctx(qt_gl_share_widget()->context());
+ QGLShareContextScope ctx(qt_gl_share_context());
glBindTexture(GL_TEXTURE_2D, m_texture.id);
return qt_gl_read_texture(QSize(w, h), true, true);
}
@@ -617,7 +617,7 @@ void QGLPixmapData::copyBackFromRenderFbo(bool keepCurrentFboBound) const
m_hasFillColor = false;
- const QGLContext *share_ctx = qt_gl_share_widget()->context();
+ const QGLContext *share_ctx = qt_gl_share_context();
QGLShareContextScope ctx(share_ctx);
ensureCreated();
@@ -672,8 +672,8 @@ QPaintEngine* QGLPixmapData::paintEngine() const
extern QGLWidget* qt_gl_share_widget();
if (!QGLContext::currentContext())
- qt_gl_share_widget()->makeCurrent();
- QGLShareContextScope ctx(qt_gl_share_widget()->context());
+ const_cast<QGLContext *>(qt_gl_share_context())->makeCurrent();
+ QGLShareContextScope ctx(qt_gl_share_context());
QGLFramebufferObjectFormat format;
format.setAttachment(QGLFramebufferObject::CombinedDepthStencil);
diff --git a/src/opengl/qwindowsurface_gl.cpp b/src/opengl/qwindowsurface_gl.cpp
index 47f36dd..cd7558c 100644
--- a/src/opengl/qwindowsurface_gl.cpp
+++ b/src/opengl/qwindowsurface_gl.cpp
@@ -182,6 +182,7 @@ QGLGraphicsSystem::QGLGraphicsSystem(bool useX11GL)
// QGLWindowSurface
//
+#ifndef Q_WS_QPA
class QGLGlobalShareWidget
{
public:
@@ -255,6 +256,23 @@ void qt_destroy_gl_share_widget()
{
_qt_gl_share_widget()->destroy();
}
+#endif//Q_WS_QPA
+
+const QGLContext *qt_gl_share_context()
+{
+#ifdef Q_WS_QPA
+ //make it possible to have an assesor to defaultSharedGLContext.
+ const QPlatformGLContext *platformContext = QPlatformGLContext::defaultSharedContext();
+ if (!platformContext)
+ qDebug() << "Please implement a defaultSharedContext for your platformplugin";
+ return QGLContext::fromPlatformGLContext(const_cast<QPlatformGLContext *>(platformContext));
+#else
+ QGLWidget *widget = qt_gl_share_widget();
+ if (widget)
+ return widget->context();
+ return 0;
+#endif
+}
struct QGLWindowSurfacePrivate
{
@@ -336,10 +354,12 @@ QGLWindowSurface::~QGLWindowSurface()
{
if (d_ptr->ctx)
glDeleteTextures(1, &d_ptr->tex_id);
+#ifndef Q_WS_QPA // Dont delete the contexts. Destroying the window does that for us
foreach(QGLContext **ctx, d_ptr->contexts) {
delete *ctx;
*ctx = 0;
}
+#endif
delete d_ptr->pb;
delete d_ptr->fbo;
@@ -356,6 +376,7 @@ void QGLWindowSurface::deleted(QObject *object)
d_ptr->fbo = 0;
}
+#ifndef Q_WS_QPA //no need to specifically delete the QGLContext as it will be deleted by QWidget
QWidgetPrivate *widgetPrivate = widget->d_func();
if (widgetPrivate->extraData()) {
union { QGLContext **ctxPtrPtr; void **voidPtrPtr; };
@@ -367,6 +388,7 @@ void QGLWindowSurface::deleted(QObject *object)
d_ptr->contexts.removeAt(index);
}
}
+#endif
}
}
@@ -377,8 +399,14 @@ void QGLWindowSurface::hijackWindow(QWidget *widget)
if (widgetPrivate->extraData()->glContext)
return;
+#ifdef Q_WS_QPA
+ QGLContext *ctx = QGLContext::fromPlatformGLContext(widget->platformWindow()->glContext());
+ if (!d_ptr->fbo && d_ptr->tried_fbo)
+ d_ptr->ctx = ctx;
+#else
QGLContext *ctx = new QGLContext(surfaceFormat, widget);
ctx->create(qt_gl_share_widget()->context());
+#endif
#ifndef QT_NO_EGL
static bool checkedForNOKSwapRegion = false;
@@ -816,7 +844,7 @@ void QGLWindowSurface::updateGeometry() {
}
}
-#if !defined(QT_OPENGL_ES_2)
+#if !defined(QT_OPENGL_ES_2) && !defined(Q_WS_QPA) //QPA doesn't support pixelbuffers
if (d_ptr->destructive_swap_buffers && (d_ptr->pb || !d_ptr->tried_pb)) {
d_ptr->tried_pb = true;
@@ -855,7 +883,7 @@ void QGLWindowSurface::updateGeometry() {
d_ptr->pb = 0;
}
}
-#endif // !defined(QT_OPENGL_ES_2)
+#endif // !defined(QT_OPENGL_ES_2) !defined(Q_WS_QPA)
ctx->makeCurrent();
diff --git a/src/opengl/qwindowsurface_gl_p.h b/src/opengl/qwindowsurface_gl_p.h
index 4f4ec92..22bd5f0 100644
--- a/src/opengl/qwindowsurface_gl_p.h
+++ b/src/opengl/qwindowsurface_gl_p.h
@@ -66,8 +66,12 @@ class QRegion;
class QWidget;
struct QGLWindowSurfacePrivate;
+#ifdef Q_WS_QPA
+Q_OPENGL_EXPORT const QGLContext* qt_gl_share_context();
+#else
Q_OPENGL_EXPORT QGLWidget* qt_gl_share_widget();
Q_OPENGL_EXPORT void qt_destroy_gl_share_widget();
+#endif
class QGLWindowSurfaceGLPaintDevice : public QGLPaintDevice
{