Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
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writing, this wiki is located here:

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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

7 files changed, 569 insertions, 0 deletions

diff --git a/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxcontext.cpp b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxcontext.cpp
new file mode 100644
index 0000000000..08c5cf6c51
--- /dev/null
+++ b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxcontext.cpp
@@ -0,0 +1,163 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandreadbackglxcontext.h"
+
+#include "qwaylandshmsurface.h"
+#include "qwaylandreadbackglxwindow.h"
+
+#include <QtCore/QDebug>
+
+static inline void qgl_byteSwapImage(QImage &img, GLenum pixel_type)
+{
+    const int width = img.width();
+    const int height = img.height();
+
+    if (pixel_type == GL_UNSIGNED_INT_8_8_8_8_REV
+        || (pixel_type == GL_UNSIGNED_BYTE && QSysInfo::ByteOrder == QSysInfo::LittleEndian))
+    {
+        for (int i = 0; i < height; ++i) {
+            uint *p = (uint *) img.scanLine(i);
+            for (int x = 0; x < width; ++x)
+                p[x] = ((p[x] << 16) & 0xff0000) | ((p[x] >> 16) & 0xff) | (p[x] & 0xff00ff00);
+        }
+    } else {
+        for (int i = 0; i < height; ++i) {
+            uint *p = (uint *) img.scanLine(i);
+            for (int x = 0; x < width; ++x)
+                p[x] = (p[x] << 8) | ((p[x] >> 24) & 0xff);
+        }
+    }
+}
+
+QWaylandReadbackGlxContext::QWaylandReadbackGlxContext(QWaylandReadbackGlxIntegration *glxIntegration, QWaylandReadbackGlxWindow *window)
+    : QPlatformGLContext()
+    , mGlxIntegration(glxIntegration)
+    , mWindow(window)
+    , mBuffer(0)
+    , mPixmap(0)
+    , mConfig(qglx_findConfig(glxIntegration->xDisplay(),glxIntegration->screen(),window->widget()->platformWindowFormat(),GLX_PIXMAP_BIT))
+    , mGlxPixmap(0)
+{
+    XVisualInfo *visualInfo = glXGetVisualFromFBConfig(glxIntegration->xDisplay(),mConfig);
+    mContext = glXCreateContext(glxIntegration->xDisplay(),visualInfo,0,TRUE);
+
+    geometryChanged();
+}
+
+void QWaylandReadbackGlxContext::makeCurrent()
+{
+    QPlatformGLContext::makeCurrent();
+
+    glXMakeCurrent(mGlxIntegration->xDisplay(),mGlxPixmap,mContext);
+}
+
+void QWaylandReadbackGlxContext::doneCurrent()
+{
+    QPlatformGLContext::doneCurrent();
+}
+
+void QWaylandReadbackGlxContext::swapBuffers()
+{
+    if (QPlatformGLContext::currentContext() != this) {
+        makeCurrent();
+    }
+
+    QSize size = mWindow->geometry().size();
+
+    QImage img(size,QImage::Format_ARGB32);
+    const uchar *constBits = img.bits();
+    void *pixels = const_cast<uchar *>(constBits);
+
+    glReadPixels(0,0, size.width(), size.height(), GL_RGBA,GL_UNSIGNED_BYTE, pixels);
+
+    img = img.mirrored();
+    qgl_byteSwapImage(img,GL_UNSIGNED_INT_8_8_8_8_REV);
+    constBits = img.bits();
+
+    const uchar *constDstBits = mBuffer->image()->bits();
+    uchar *dstBits = const_cast<uchar *>(constDstBits);
+    memcpy(dstBits,constBits,(img.width()*4) * img.height());
+
+
+    mWindow->damage(QRegion(QRect(QPoint(0,0),size)));
+    mWindow->waitForFrameSync();
+
+}
+
+void * QWaylandReadbackGlxContext::getProcAddress(const QString &procName)
+{
+    return (void *) glXGetProcAddress(reinterpret_cast<GLubyte *>(procName.toLatin1().data()));
+}
+
+QPlatformWindowFormat QWaylandReadbackGlxContext::platformWindowFormat() const
+{
+    return qglx_platformWindowFromGLXFBConfig(mGlxIntegration->xDisplay(),mConfig,mContext);
+}
+
+void QWaylandReadbackGlxContext::geometryChanged()
+{
+    QSize size(mWindow->geometry().size());
+    if (size.isEmpty()) {
+        //QGLWidget wants a context for a window without geometry
+        size = QSize(1,1);
+    }
+
+    mWindow->waitForFrameSync();
+
+    delete mBuffer;
+    //XFreePixmap deletes the glxPixmap as well
+    if (mPixmap) {
+        XFreePixmap(mGlxIntegration->xDisplay(),mPixmap);
+    }
+
+    mBuffer = new QWaylandShmBuffer(mGlxIntegration->waylandDisplay(),size,QImage::Format_ARGB32);
+    mWindow->attach(mBuffer);
+    int depth = XDefaultDepth(mGlxIntegration->xDisplay(),mGlxIntegration->screen());
+    mPixmap = XCreatePixmap(mGlxIntegration->xDisplay(),mGlxIntegration->rootWindow(),size.width(),size.height(),depth);
+    XSync(mGlxIntegration->xDisplay(),False);
+
+    mGlxPixmap = glXCreatePixmap(mGlxIntegration->xDisplay(),mConfig,mPixmap,0);
+
+    if (!mGlxPixmap) {
+        qDebug() << "Could not make egl surface out of pixmap :(";
+    }
+}
diff --git a/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxcontext.h b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxcontext.h
new file mode 100644
index 0000000000..5fafcf03bf
--- /dev/null
+++ b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxcontext.h
@@ -0,0 +1,79 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDREADBACKGLXCONTEXT_H
+#define QWAYLANDREADBACKGLXCONTEXT_H
+
+#include <QPlatformGLContext>
+
+#include "qwaylandreadbackglxintegration.h"
+
+#include "qglxconvenience.h"
+
+class QWaylandReadbackGlxWindow;
+class QWaylandShmBuffer;
+
+class QWaylandReadbackGlxContext : public QPlatformGLContext
+{
+public:
+    QWaylandReadbackGlxContext(QWaylandReadbackGlxIntegration *glxIntegration, QWaylandReadbackGlxWindow *window);
+
+    void makeCurrent();
+    void doneCurrent();
+    void swapBuffers();
+    void* getProcAddress(const QString& procName);
+
+    QPlatformWindowFormat platformWindowFormat() const;
+
+    void geometryChanged();
+
+private:
+    QWaylandReadbackGlxIntegration *mGlxIntegration;
+    QWaylandReadbackGlxWindow *mWindow;
+    QWaylandShmBuffer *mBuffer;
+
+    Pixmap mPixmap;
+    GLXFBConfig mConfig;
+    GLXContext mContext;
+    GLXPixmap mGlxPixmap;
+};
+
+#endif // QWAYLANDREADBACKGLXCONTEXT_H
diff --git a/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxintegration.cpp b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxintegration.cpp
new file mode 100644
index 0000000000..4651f0c30e
--- /dev/null
+++ b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxintegration.cpp
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandreadbackglxintegration.h"
+
+#include "qwaylandreadbackglxwindow.h"
+
+#include <QtCore/QDebug>
+
+QWaylandReadbackGlxIntegration::QWaylandReadbackGlxIntegration(QWaylandDisplay * waylandDispaly)
+    : QWaylandGLIntegration()
+    , mWaylandDisplay(waylandDispaly)
+{
+    qDebug() << "Using Readback-GLX";
+    char *display_name = getenv("DISPLAY");
+    mDisplay = XOpenDisplay(display_name);
+    mScreen = XDefaultScreen(mDisplay);
+    mRootWindow = XDefaultRootWindow(mDisplay);
+    XSync(mDisplay, False);
+}
+
+QWaylandReadbackGlxIntegration::~QWaylandReadbackGlxIntegration()
+{
+    XCloseDisplay(mDisplay);
+}
+
+void QWaylandReadbackGlxIntegration::initialize()
+{
+}
+
+QWaylandWindow * QWaylandReadbackGlxIntegration::createEglWindow(QWidget *widget)
+{
+    return new QWaylandReadbackGlxWindow(widget,this);
+}
+
+QWaylandGLIntegration * QWaylandGLIntegration::createGLIntegration(QWaylandDisplay *waylandDisplay)
+{
+    return new QWaylandReadbackGlxIntegration(waylandDisplay);
+}
+
+Display * QWaylandReadbackGlxIntegration::xDisplay() const
+{
+    return mDisplay;
+}
+
+int QWaylandReadbackGlxIntegration::screen() const
+{
+    return mScreen;
+}
+
+Window QWaylandReadbackGlxIntegration::rootWindow() const
+{
+    return mRootWindow;
+}
+
+QWaylandDisplay * QWaylandReadbackGlxIntegration::waylandDisplay() const
+{
+    return mWaylandDisplay;
+}
diff --git a/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxintegration.h b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxintegration.h
new file mode 100644
index 0000000000..9056393905
--- /dev/null
+++ b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxintegration.h
@@ -0,0 +1,80 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDREADBACKGLXINTEGRATION_H
+#define QWAYLANDREADBACKGLXINTEGRATION_H
+
+#include "gl_integration/qwaylandglintegration.h"
+
+#include <QtCore/QTextStream>
+#include <QtCore/QDataStream>
+#include <QtCore/QMetaType>
+#include <QtCore/QVariant>
+#include <QtGui/QWidget>
+
+#include <X11/Xlib.h>
+
+class QWaylandReadbackGlxIntegration : public QWaylandGLIntegration
+{
+public:
+    QWaylandReadbackGlxIntegration(QWaylandDisplay * waylandDispaly);
+    ~QWaylandReadbackGlxIntegration();
+
+    void initialize();
+
+    QWaylandWindow *createEglWindow(QWidget *widget);
+
+    QWaylandDisplay *waylandDisplay() const;
+
+    Display *xDisplay() const;
+    int screen() const;
+    Window rootWindow() const;
+
+private:
+    QWaylandDisplay *mWaylandDisplay;
+
+    Display *mDisplay;
+    int mScreen;
+    Window mRootWindow;
+
+};
+
+#endif // QWAYLANDREADBACKGLXINTEGRATION_H
diff --git a/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxwindow.cpp b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxwindow.cpp
new file mode 100644
index 0000000000..ca1603c649
--- /dev/null
+++ b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxwindow.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandreadbackglxwindow.h"
+
+QWaylandReadbackGlxWindow::QWaylandReadbackGlxWindow(QWidget *window, QWaylandReadbackGlxIntegration *glxIntegration)
+    : QWaylandShmWindow(window)
+    , mGlxIntegration(glxIntegration)
+    , mContext(0)
+{
+}
+
+QWaylandWindow::WindowType QWaylandReadbackGlxWindow::windowType() const
+{
+    //yeah. this type needs a new name
+    return QWaylandWindow::Egl;
+}
+
+QPlatformGLContext * QWaylandReadbackGlxWindow::glContext() const
+{
+    if (!mContext) {
+        QWaylandReadbackGlxWindow *that = const_cast<QWaylandReadbackGlxWindow *>(this);
+        that->mContext = new QWaylandReadbackGlxContext(mGlxIntegration,that);
+    }
+    return mContext;
+}
+
+void QWaylandReadbackGlxWindow::setGeometry(const QRect &rect)
+{
+    QWaylandShmWindow::setGeometry(rect);
+
+    if (mContext) {
+        mContext->geometryChanged();
+    }
+}
diff --git a/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxwindow.h b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxwindow.h
new file mode 100644
index 0000000000..4d7bb3ee74
--- /dev/null
+++ b/src/plugins/platforms/wayland/gl_integration/readback_glx/qwaylandreadbackglxwindow.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDREADBACKGLXWINDOW_H
+#define QWAYLANDREADBACKGLXWINDOW_H
+
+#include "qwaylandshmwindow.h"
+#include "qwaylandreadbackglxintegration.h"
+#include "qwaylandreadbackglxcontext.h"
+
+class QWaylandReadbackGlxWindow : public QWaylandShmWindow
+{
+public:
+    QWaylandReadbackGlxWindow(QWidget *window, QWaylandReadbackGlxIntegration *glxIntegration);
+    WindowType windowType() const;
+
+    QPlatformGLContext *glContext() const;
+
+    void setGeometry(const QRect &rect);
+
+private:
+    QWaylandReadbackGlxIntegration *mGlxIntegration;
+    QWaylandReadbackGlxContext *mContext;
+
+};
+
+#endif // QWAYLANDREADBACKGLXWINDOW_H
diff --git a/src/plugins/platforms/wayland/gl_integration/readback_glx/readback_glx.pri b/src/plugins/platforms/wayland/gl_integration/readback_glx/readback_glx.pri
new file mode 100644
index 0000000000..f8ea005937
--- /dev/null
+++ b/src/plugins/platforms/wayland/gl_integration/readback_glx/readback_glx.pri
@@ -0,0 +1,12 @@
+include (../../../glxconvenience/glxconvenience.pri)
+HEADERS += \
+    $$PWD/qwaylandreadbackglxintegration.h \
+    $$PWD/qwaylandreadbackglxwindow.h \
+    $$PWD/qwaylandreadbackglxcontext.h
+
+SOURCES += \
+    $$PWD/qwaylandreadbackglxintegration.cpp \
+    $$PWD/qwaylandreadbackglxwindow.cpp \
+    $$PWD/qwaylandreadbackglxcontext.cpp
+
+LIBS += -lX11