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-rw-r--r--src/gui/egl/qegl.cpp11
-rw-r--r--src/gui/egl/qegl_p.h3
-rw-r--r--src/gui/image/image.pri6
-rw-r--r--src/gui/image/qimage.cpp17
-rw-r--r--src/gui/image/qimagepixmapcleanuphooks.cpp110
-rw-r--r--src/gui/image/qimagepixmapcleanuphooks_p.h89
-rw-r--r--src/gui/image/qpixmap.cpp24
-rw-r--r--src/gui/image/qpixmap_x11.cpp23
-rw-r--r--src/gui/image/qpixmap_x11_p.h12
-rw-r--r--src/gui/image/qpixmapdata_p.h1
-rw-r--r--src/gui/painting/qwindowsurface_x11.cpp4
11 files changed, 254 insertions, 46 deletions
diff --git a/src/gui/egl/qegl.cpp b/src/gui/egl/qegl.cpp
index 89d9d1b..ebdac9a 100644
--- a/src/gui/egl/qegl.cpp
+++ b/src/gui/egl/qegl.cpp
@@ -400,4 +400,15 @@ void QEglContext::dumpAllConfigs()
delete [] configs;
}
+QString QEglContext::extensions()
+{
+ const char* exts = eglQueryString(dpy, EGL_EXTENSIONS);
+ return QString(QLatin1String(exts));
+}
+
+bool QEglContext::hasExtension(const char* extensionName)
+{
+ return extensions().contains(QLatin1String(extensionName));
+}
+
QT_END_NAMESPACE
diff --git a/src/gui/egl/qegl_p.h b/src/gui/egl/qegl_p.h
index ddf7d27..3ae1489 100644
--- a/src/gui/egl/qegl_p.h
+++ b/src/gui/egl/qegl_p.h
@@ -122,6 +122,9 @@ public:
void dumpAllConfigs();
+ QString extensions();
+ bool hasExtension(const char* extensionName);
+
private:
QEgl::API apiType;
EGLDisplay dpy;
diff --git a/src/gui/image/image.pri b/src/gui/image/image.pri
index bf348af..b9c36dc 100644
--- a/src/gui/image/image.pri
+++ b/src/gui/image/image.pri
@@ -25,7 +25,9 @@ HEADERS += \
image/qpixmapcache_p.h \
image/qpixmapdata_p.h \
image/qpixmapdatafactory_p.h \
- image/qpixmapfilter_p.h
+ image/qpixmapfilter_p.h \
+ image/qimagepixmapcleanuphooks_p.h \
+
SOURCES += \
image/qbitmap.cpp \
@@ -47,6 +49,8 @@ SOURCES += \
image/qmovie.cpp \
image/qpixmap_raster.cpp \
image/qnativeimage.cpp \
+ image/qimagepixmapcleanuphooks.cpp \
+
win32 {
SOURCES += image/qpixmap_win.cpp
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index e8ca7a9..bb77fb5 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -49,6 +49,7 @@
#include "qimagewriter.h"
#include "qstringlist.h"
#include "qvariant.h"
+#include "qimagepixmapcleanuphooks_p.h"
#include <ctype.h>
#include <stdlib.h>
#include <limits.h>
@@ -106,14 +107,6 @@ static inline bool checkPixelSize(const QImage::Format format)
}
-// ### Qt 5: remove
-typedef void (*_qt_image_cleanup_hook)(int);
-Q_GUI_EXPORT _qt_image_cleanup_hook qt_image_cleanup_hook = 0;
-
-// ### Qt 5: rename
-typedef void (*_qt_image_cleanup_hook_64)(qint64);
-Q_GUI_EXPORT _qt_image_cleanup_hook_64 qt_image_cleanup_hook_64 = 0;
-
static QImage rotated90(const QImage &src);
static QImage rotated180(const QImage &src);
static QImage rotated270(const QImage &src);
@@ -257,8 +250,8 @@ QImageData * QImageData::create(const QSize &size, QImage::Format format, int nu
QImageData::~QImageData()
{
- if (is_cached && qt_image_cleanup_hook_64)
- qt_image_cleanup_hook_64((((qint64) ser_no) << 32) | ((qint64) detach_no));
+ if (is_cached)
+ QImagePixmapCleanupHooks::executeImageHooks((((qint64) ser_no) << 32) | ((qint64) detach_no));
delete paintEngine;
if (data && own_data)
free(data);
@@ -1342,8 +1335,8 @@ QImage::operator QVariant() const
void QImage::detach()
{
if (d) {
- if (d->is_cached && qt_image_cleanup_hook_64 && d->ref == 1)
- qt_image_cleanup_hook_64(cacheKey());
+ if (d->is_cached && d->ref == 1)
+ QImagePixmapCleanupHooks::executeImageHooks(cacheKey());
if (d->ref != 1 || d->ro_data)
*this = copy();
diff --git a/src/gui/image/qimagepixmapcleanuphooks.cpp b/src/gui/image/qimagepixmapcleanuphooks.cpp
new file mode 100644
index 0000000..7d1c5fb
--- /dev/null
+++ b/src/gui/image/qimagepixmapcleanuphooks.cpp
@@ -0,0 +1,110 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qimagepixmapcleanuphooks_p.h"
+#include "qpixmapdata_p.h"
+
+
+// Legacy, single instance hooks: ### Qt 5: remove
+typedef void (*_qt_pixmap_cleanup_hook)(int);
+typedef void (*_qt_pixmap_cleanup_hook_64)(qint64);
+typedef void (*_qt_image_cleanup_hook)(int);
+Q_GUI_EXPORT _qt_pixmap_cleanup_hook qt_pixmap_cleanup_hook = 0;
+Q_GUI_EXPORT _qt_pixmap_cleanup_hook_64 qt_pixmap_cleanup_hook_64 = 0;
+Q_GUI_EXPORT _qt_image_cleanup_hook qt_image_cleanup_hook = 0;
+Q_GUI_EXPORT _qt_image_cleanup_hook_64 qt_image_cleanup_hook_64 = 0;
+
+
+QImagePixmapCleanupHooks* qt_image_and_pixmap_cleanup_hooks = 0;
+
+
+QImagePixmapCleanupHooks::QImagePixmapCleanupHooks()
+{
+ qt_image_and_pixmap_cleanup_hooks = this;
+}
+
+QImagePixmapCleanupHooks *QImagePixmapCleanupHooks::instance()
+{
+ if (!qt_image_and_pixmap_cleanup_hooks)
+ qt_image_and_pixmap_cleanup_hooks = new QImagePixmapCleanupHooks;
+ return qt_image_and_pixmap_cleanup_hooks;
+}
+
+void QImagePixmapCleanupHooks::addPixmapHook(_qt_pixmap_cleanup_hook_pm hook)
+{
+ pixmapHooks.append(hook);
+}
+
+void QImagePixmapCleanupHooks::addImageHook(_qt_image_cleanup_hook_64 hook)
+{
+ imageHooks.append(hook);
+}
+
+void QImagePixmapCleanupHooks::removePixmapHook(_qt_pixmap_cleanup_hook_pm hook)
+{
+ pixmapHooks.removeAll(hook);
+}
+
+void QImagePixmapCleanupHooks::removeImageHook(_qt_image_cleanup_hook_64 hook)
+{
+ imageHooks.removeAll(hook);
+}
+
+
+void QImagePixmapCleanupHooks::executePixmapHooks(QPixmap* pm)
+{
+ for (int i = 0; i < qt_image_and_pixmap_cleanup_hooks->pixmapHooks.count(); ++i)
+ qt_image_and_pixmap_cleanup_hooks->pixmapHooks[i](pm);
+
+ if (qt_pixmap_cleanup_hook_64)
+ qt_pixmap_cleanup_hook_64(pm->cacheKey());
+}
+
+
+void QImagePixmapCleanupHooks::executeImageHooks(qint64 key)
+{
+ for (int i = 0; i < qt_image_and_pixmap_cleanup_hooks->imageHooks.count(); ++i)
+ qt_image_and_pixmap_cleanup_hooks->imageHooks[i](key);
+
+ if (qt_image_cleanup_hook_64)
+ qt_image_cleanup_hook_64(key);
+}
+
diff --git a/src/gui/image/qimagepixmapcleanuphooks_p.h b/src/gui/image/qimagepixmapcleanuphooks_p.h
new file mode 100644
index 0000000..e765e69
--- /dev/null
+++ b/src/gui/image/qimagepixmapcleanuphooks_p.h
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QIMAGEPIXMAP_CLEANUPHOOKS_P_H
+#define QIMAGEPIXMAP_CLEANUPHOOKS_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qpixmap.h>
+
+QT_BEGIN_NAMESPACE
+
+typedef void (*_qt_image_cleanup_hook_64)(qint64);
+typedef void (*_qt_pixmap_cleanup_hook_pm)(QPixmap*);
+
+class QImagePixmapCleanupHooks;
+extern QImagePixmapCleanupHooks* qt_image_and_pixmap_cleanup_hooks;
+
+class Q_GUI_EXPORT QImagePixmapCleanupHooks
+{
+public:
+ QImagePixmapCleanupHooks();
+
+ static QImagePixmapCleanupHooks *instance();
+
+ void addPixmapHook(_qt_pixmap_cleanup_hook_pm);
+ void addImageHook(_qt_image_cleanup_hook_64);
+
+ void removePixmapHook(_qt_pixmap_cleanup_hook_pm);
+ void removeImageHook(_qt_image_cleanup_hook_64);
+
+ static void executePixmapHooks(QPixmap*);
+ static void executeImageHooks(qint64 key);
+
+private:
+ QList<_qt_image_cleanup_hook_64> imageHooks;
+ QList<_qt_pixmap_cleanup_hook_pm> pixmapHooks;
+};
+
+QT_END_NAMESPACE
+
+#endif // QIMAGEPIXMAP_CLEANUPHOOKS_P_H
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 18829f4..82835d5 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -43,6 +43,7 @@
#include "qpixmap.h"
#include "qpixmapdata_p.h"
+#include "qimagepixmapcleanuphooks_p.h"
#include "qbitmap.h"
#include "qcolormap.h"
@@ -81,14 +82,6 @@
QT_BEGIN_NAMESPACE
// ### Qt 5: remove
-typedef void (*_qt_pixmap_cleanup_hook)(int);
-Q_GUI_EXPORT _qt_pixmap_cleanup_hook qt_pixmap_cleanup_hook = 0;
-
-// ### Qt 5: rename
-typedef void (*_qt_pixmap_cleanup_hook_64)(qint64);
-Q_GUI_EXPORT _qt_pixmap_cleanup_hook_64 qt_pixmap_cleanup_hook_64 = 0;
-
-// ### Qt 5: remove
Q_GUI_EXPORT qint64 qt_pixmap_id(const QPixmap &pixmap)
{
return pixmap.cacheKey();
@@ -656,7 +649,7 @@ void QPixmap::resize_helper(const QSize &s)
QX11PixmapData *x11Data = data->classId() == QPixmapData::X11Class ? static_cast<QX11PixmapData*>(data) : 0;
if (x11Data) {
pm.x11SetScreen(x11Data->xinfo.screen());
- uninit = x11Data->uninit;
+ uninit = x11Data->flags & QX11PixmapData::Uninitialized;
}
#elif defined(Q_WS_MAC)
QMacPixmapData *macData = data->classId() == QPixmapData::MacClass ? static_cast<QMacPixmapData*>(data) : 0;
@@ -1357,8 +1350,8 @@ bool QPixmap::isDetached() const
void QPixmap::deref()
{
if (data && !data->ref.deref()) { // Destroy image if last ref
- if (data->is_cached && qt_pixmap_cleanup_hook_64)
- qt_pixmap_cleanup_hook_64(cacheKey());
+ if (data->is_cached)
+ QImagePixmapCleanupHooks::executePixmapHooks(this);
delete data;
data = 0;
}
@@ -1897,9 +1890,6 @@ int QPixmap::defaultDepth()
#endif
}
-typedef void (*_qt_pixmap_cleanup_hook_64)(qint64);
-extern _qt_pixmap_cleanup_hook_64 qt_pixmap_cleanup_hook_64;
-
/*!
Detaches the pixmap from shared pixmap data.
@@ -1925,8 +1915,8 @@ void QPixmap::detach()
rasterData->image.detach();
}
- if (data->is_cached && qt_pixmap_cleanup_hook_64 && data->ref == 1)
- qt_pixmap_cleanup_hook_64(cacheKey());
+ if (data->is_cached && data->ref == 1)
+ QImagePixmapCleanupHooks::executePixmapHooks(this);
#if defined(Q_WS_MAC)
QMacPixmapData *macData = id == QPixmapData::MacClass ? static_cast<QMacPixmapData*>(data) : 0;
@@ -1946,7 +1936,7 @@ void QPixmap::detach()
#if defined(Q_WS_X11)
if (data->classId() == QPixmapData::X11Class) {
QX11PixmapData *d = static_cast<QX11PixmapData*>(data);
- d->uninit = false;
+ d->flags &= ~QX11PixmapData::Uninitialized;
// reset the cache data
if (d->hd2) {
diff --git a/src/gui/image/qpixmap_x11.cpp b/src/gui/image/qpixmap_x11.cpp
index 86cf515..be3d070 100644
--- a/src/gui/image/qpixmap_x11.cpp
+++ b/src/gui/image/qpixmap_x11.cpp
@@ -313,7 +313,7 @@ int Q_GUI_EXPORT qt_x11_preferred_pixmap_depth = 0;
QX11PixmapData::QX11PixmapData(PixelType type)
: QPixmapData(type, X11Class), hd(0),
- uninit(true), read_only(false), x11_mask(0), picture(0), mask_picture(0), hd2(0),
+ flags(Uninitialized), x11_mask(0), picture(0), mask_picture(0), hd2(0), gl_surface(0),
share_mode(QPixmap::ImplicitlyShared), pengine(0)
{
}
@@ -1217,7 +1217,7 @@ void QX11PixmapData::release()
XFreePixmap(xinfo.display(), hd2);
hd2 = 0;
}
- if (!read_only)
+ if (!(flags & Readonly))
XFreePixmap(xinfo.display(), hd);
hd = 0;
}
@@ -1876,7 +1876,7 @@ QPixmap QX11PixmapData::transformed(const QTransform &transform,
} else { // color pixmap
QPixmap pm;
QX11PixmapData *x11Data = static_cast<QX11PixmapData*>(pm.data);
- x11Data->uninit = false;
+ x11Data->flags &= ~QX11PixmapData::Uninitialized;
x11Data->xinfo = xinfo;
x11Data->d = d;
x11Data->w = w;
@@ -2018,7 +2018,7 @@ QPixmap QPixmap::grabWindow(WId window, int x, int y, int w, int h)
QPixmap pm(data);
- data->uninit = false;
+ data->flags &= ~QX11PixmapData::Uninitialized;
pm.x11SetScreen(scr);
GC gc = XCreateGC(dpy, pm.handle(), 0, 0);
@@ -2060,7 +2060,7 @@ QPaintEngine* QX11PixmapData::paintEngine() const
{
QX11PixmapData *that = const_cast<QX11PixmapData*>(this);
- if (read_only && share_mode == QPixmap::ImplicitlyShared) {
+ if ((flags & Readonly) && share_mode == QPixmap::ImplicitlyShared) {
// if someone wants to draw onto us, copy the shared contents
// and turn it into a fully fledged QPixmap
::Pixmap hd_copy = XCreatePixmap(X11->display, RootWindow(X11->display, xinfo.screen()),
@@ -2082,7 +2082,7 @@ QPaintEngine* QX11PixmapData::paintEngine() const
XFreeGC(X11->display, gc);
}
that->hd = hd_copy;
- that->read_only = false;
+ that->flags &= ~QX11PixmapData::Readonly;
}
if (!that->pengine)
@@ -2133,7 +2133,7 @@ void QX11PixmapData::copy(const QPixmapData *data, const QRect &rect)
setSerialNumber(++qt_pixmap_serial);
- uninit = false;
+ flags &= ~Uninitialized;
xinfo = x11Data->xinfo;
d = x11Data->d;
w = rect.width();
@@ -2201,7 +2201,7 @@ void QX11PixmapData::convertToARGB32(bool preserveContents)
return;
// Q_ASSERT(count == 1);
- if (read_only && share_mode == QPixmap::ExplicitlyShared)
+ if ((flags & Readonly) && share_mode == QPixmap::ExplicitlyShared)
return;
Pixmap pm = XCreatePixmap(X11->display, RootWindow(X11->display, xinfo.screen()),
@@ -2211,10 +2211,10 @@ void QX11PixmapData::convertToARGB32(bool preserveContents)
if (picture) {
if (preserveContents)
XRenderComposite(X11->display, PictOpSrc, picture, 0, p, 0, 0, 0, 0, 0, 0, w, h);
- if (!read_only)
+ if (!(flags & Readonly))
XRenderFreePicture(X11->display, picture);
}
- if (hd && !read_only)
+ if (hd && !(flags & Readonly))
XFreePixmap(X11->display, hd);
if (x11_mask) {
XFreePixmap(X11->display, x11_mask);
@@ -2252,9 +2252,8 @@ QPixmap QPixmap::fromX11Pixmap(Qt::HANDLE pixmap, QPixmap::ShareMode mode)
QX11PixmapData *data = new QX11PixmapData(depth == 1 ? QPixmapData::BitmapType : QPixmapData::PixmapType);
data->setSerialNumber(++qt_pixmap_serial);
- data->read_only = true;
+ data->flags = QX11PixmapData::Readonly;
data->share_mode = mode;
- data->uninit = false;
data->w = width;
data->h = height;
data->is_null = (width <= 0 || height <= 0);
diff --git a/src/gui/image/qpixmap_x11_p.h b/src/gui/image/qpixmap_x11_p.h
index 3de9a0f..835fea4 100644
--- a/src/gui/image/qpixmap_x11_p.h
+++ b/src/gui/image/qpixmap_x11_p.h
@@ -99,6 +99,7 @@ private:
friend class QX11PaintEngine;
friend class QX11WindowSurface;
friend class QRasterWindowSurface;
+ friend class QGLContextPrivate; // Needs to access xinfo, gl_surface & flags
void release();
@@ -108,14 +109,21 @@ private:
Qt::HANDLE hd;
- uint uninit : 1;
- uint read_only : 1;
+ enum Flag {
+ NoFlags = 0x0,
+ Uninitialized = 0x1,
+ Readonly = 0x2,
+ InvertedWhenBoundToTexture = 0x4,
+ GlSurfaceCreatedWithAlpha = 0x8
+ };
+ uint flags;
QX11Info xinfo;
Qt::HANDLE x11_mask;
Qt::HANDLE picture;
Qt::HANDLE mask_picture;
Qt::HANDLE hd2; // sorted in the default display depth
+ Qt::HANDLE gl_surface;
#ifndef QT_NO_XRENDER
void convertToARGB32(bool preserveContents = true);
#endif
diff --git a/src/gui/image/qpixmapdata_p.h b/src/gui/image/qpixmapdata_p.h
index 29dafaf..32b419e 100644
--- a/src/gui/image/qpixmapdata_p.h
+++ b/src/gui/image/qpixmapdata_p.h
@@ -116,6 +116,7 @@ private:
friend class QPixmap;
friend class QGLContextPrivate;
friend class QX11PixmapData;
+ friend class QGLTextureCache; //Needs to check the reference count
QAtomicInt ref;
int detach_no;
diff --git a/src/gui/painting/qwindowsurface_x11.cpp b/src/gui/painting/qwindowsurface_x11.cpp
index d8b0d9e..95f6ce3 100644
--- a/src/gui/painting/qwindowsurface_x11.cpp
+++ b/src/gui/painting/qwindowsurface_x11.cpp
@@ -154,7 +154,7 @@ void QX11WindowSurface::setGeometry(const QRect &rect)
QX11PixmapData *oldData = static_cast<QX11PixmapData *>(d_ptr->device.pixmapData());
Q_ASSERT(oldData);
- if (!oldData->uninit && hasStaticContents()) {
+ if (!(oldData->flags & QX11PixmapData::Uninitialized) && hasStaticContents()) {
// Copy the content of the old pixmap into the new one.
QX11PixmapData *newData = new QX11PixmapData(QPixmapData::PixmapType);
newData->resize(size.width(), size.height());
@@ -175,7 +175,7 @@ void QX11WindowSurface::setGeometry(const QRect &rect)
dx, dy, qMin(boundingRect.width(), size.width()),
qMin(boundingRect.height(), size.height()), dx, dy);
XFreeGC(X11->display, tmpGc);
- newData->uninit = false;
+ newData->flags &= ~QX11PixmapData::Uninitialized;
d_ptr->device = QPixmap(newData);
} else {
generated by cgit v0.12 at 2024-12-26 08:16:10 (GMT)