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
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

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

2 files changed, 410 insertions, 0 deletions

diff --git a/tests/auto/qvolatileimage/qvolatileimage.pro b/tests/auto/qvolatileimage/qvolatileimage.pro
new file mode 100644
index 0000000000..5a0a613ffa
--- /dev/null
+++ b/tests/auto/qvolatileimage/qvolatileimage.pro
@@ -0,0 +1,7 @@
+load(qttest_p4)
+SOURCES  += tst_qvolatileimage.cpp
+
+symbian {
+   TARGET.EPOCHEAPSIZE = 0x200000 0x800000
+   LIBS += -lfbscli
+}
diff --git a/tests/auto/qvolatileimage/tst_qvolatileimage.cpp b/tests/auto/qvolatileimage/tst_qvolatileimage.cpp
new file mode 100644
index 0000000000..b91a150b1b
--- /dev/null
+++ b/tests/auto/qvolatileimage/tst_qvolatileimage.cpp
@@ -0,0 +1,403 @@
+/****************************************************************************
+**
+** 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 test suite 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 <QtTest/QtTest>
+#include <QtGui/qpainter.h>
+#include <QtGui/qpaintengine.h>
+#include <QtGui/private/qvolatileimage_p.h>
+#ifdef Q_OS_SYMBIAN
+#include <fbs.h>
+#endif
+
+class tst_QVolatileImage : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QVolatileImage() { }
+
+private slots:
+    void create();
+    void ensureFormat();
+    void dataAccess();
+    void sharing();
+    void paint();
+    void fill();
+    void copy();
+    void bitmap();
+};
+
+void tst_QVolatileImage::create()
+{
+    QVolatileImage nullImg;
+    QVERIFY(nullImg.isNull());
+
+    QVolatileImage img(100, 200, QImage::Format_ARGB32);
+    QVERIFY(!img.isNull());
+    QCOMPARE(img.width(), 100);
+    QCOMPARE(img.height(), 200);
+    QCOMPARE(img.format(), QImage::Format_ARGB32);
+    QCOMPARE(img.byteCount(), img.bytesPerLine() * img.height());
+    QCOMPARE(img.hasAlphaChannel(), true);
+    QCOMPARE(img.depth(), 32);
+
+    QImage source(12, 23, QImage::Format_ARGB32_Premultiplied);
+    img = QVolatileImage(source);
+    QVERIFY(!img.isNull());
+    QCOMPARE(img.width(), 12);
+    QCOMPARE(img.height(), 23);
+    QCOMPARE(img.format(), source.format());
+    QCOMPARE(img.byteCount(), img.bytesPerLine() * img.height());
+    QVERIFY(img.imageRef() == source);
+    QVERIFY(img.toImage() == source);
+    QCOMPARE(img.hasAlphaChannel(), true);
+    QCOMPARE(img.hasAlphaChannel(), img.imageRef().hasAlphaChannel());
+    QCOMPARE(img.hasAlphaChannel(), img.toImage().hasAlphaChannel());
+    QCOMPARE(img.depth(), 32);
+
+#ifdef Q_OS_SYMBIAN
+    CFbsBitmap *bmp = new CFbsBitmap;
+    QVERIFY(bmp->Create(TSize(100, 50), EColor16MAP) == KErrNone);
+    QVolatileImage bmpimg(bmp);
+    QVERIFY(!bmpimg.isNull());
+    QCOMPARE(bmpimg.width(), 100);
+    QCOMPARE(bmpimg.height(), 50);
+    // Verify that we only did handle duplication, not pixel data copying.
+    QCOMPARE(bmpimg.constBits(), (const uchar *) bmp->DataAddress());
+    delete bmp;
+    // Check if content is still valid.
+    QImage copyimg = bmpimg.toImage();
+    QCOMPARE(copyimg.format(), QImage::Format_ARGB32_Premultiplied);
+#endif
+}
+
+void tst_QVolatileImage::ensureFormat()
+{
+    QImage source(12, 23, QImage::Format_ARGB32_Premultiplied);
+    QVolatileImage img(source);
+    QVERIFY(!img.isNull());
+    QVERIFY(img.imageRef() == source);
+    QVERIFY(img.toImage() == source);
+
+    QVERIFY(img.ensureFormat(QImage::Format_ARGB32_Premultiplied)); // no-op
+    QVERIFY(img.imageRef() == source);
+    QVERIFY(img.toImage() == source);
+    QVERIFY(img.format() == QImage::Format_ARGB32_Premultiplied);
+
+    QVERIFY(img.ensureFormat(QImage::Format_RGB32)); // new data under-the-hood
+    QVERIFY(img.imageRef() != source);
+    QVERIFY(img.toImage() != source);
+    QVERIFY(img.format() == QImage::Format_RGB32);
+
+#ifdef Q_OS_SYMBIAN
+    CFbsBitmap *bmp = new CFbsBitmap;
+    QVERIFY(bmp->Create(TSize(100, 50), EColor16MAP) == KErrNone);
+    QVolatileImage bmpimg(bmp);
+    QVERIFY(bmpimg.ensureFormat(QImage::Format_ARGB32_Premultiplied)); // no-op
+    QCOMPARE(bmpimg.constBits(), (const uchar *) bmp->DataAddress());
+
+    // A different format should cause data copying.
+    QVERIFY(bmpimg.ensureFormat(QImage::Format_RGB32));
+    QVERIFY(bmpimg.constBits() != (const uchar *) bmp->DataAddress());
+    const uchar *prevBits = bmpimg.constBits();
+
+    QVERIFY(bmpimg.ensureFormat(QImage::Format_RGB16));
+    QVERIFY(bmpimg.constBits() != (const uchar *) bmp->DataAddress());
+    QVERIFY(bmpimg.constBits() != prevBits);
+    prevBits = bmpimg.constBits();
+
+    QVERIFY(bmpimg.ensureFormat(QImage::Format_MonoLSB));
+    QVERIFY(bmpimg.constBits() != (const uchar *) bmp->DataAddress());
+    QVERIFY(bmpimg.constBits() != prevBits);
+
+    delete bmp;
+#endif
+}
+
+void tst_QVolatileImage::dataAccess()
+{
+    QImage source(12, 23, QImage::Format_ARGB32_Premultiplied);
+    QVolatileImage img(source);
+    QVERIFY(!img.isNull());
+    img.beginDataAccess();
+    QVERIFY(img.constBits());
+    QVERIFY(img.imageRef().constBits());
+    QVERIFY(img.bits());
+    QVERIFY(img.imageRef().bits());
+    img.endDataAccess();
+
+    img = QVolatileImage(12, 23, QImage::Format_ARGB32);
+    img.beginDataAccess();
+    QVERIFY(img.constBits() && img.bits());
+    img.endDataAccess();
+}
+
+void tst_QVolatileImage::sharing()
+{
+    QVolatileImage img1(100, 100, QImage::Format_ARGB32);
+    QVolatileImage img2 = img1;
+    img1.beginDataAccess();
+    img2.beginDataAccess();
+    QVERIFY(img1.constBits() == img2.constBits());
+    img2.endDataAccess();
+    img1.endDataAccess();
+    img1.imageRef(); // non-const call, should detach
+    img1.beginDataAccess();
+    img2.beginDataAccess();
+    QVERIFY(img1.constBits() != img2.constBits());
+    img2.endDataAccess();
+    img1.endDataAccess();
+
+    // toImage() should return a copy of the internal QImage.
+    // imageRef() is a reference to the internal QImage.
+    QVERIFY(img1.imageRef().constBits() != img1.toImage().constBits());
+
+#ifdef Q_OS_SYMBIAN
+    CFbsBitmap *bmp = new CFbsBitmap;
+    QVERIFY(bmp->Create(TSize(100, 50), EColor16MAP) == KErrNone);
+    QVolatileImage bmpimg(bmp);
+    QVolatileImage bmpimg2;
+    bmpimg2 = bmpimg;
+    QCOMPARE(bmpimg.constBits(), (const uchar *) bmp->DataAddress());
+    QCOMPARE(bmpimg2.constBits(), (const uchar *) bmp->DataAddress());
+    // Now force a detach, which should copy the pixel data under-the-hood.
+    bmpimg.imageRef();
+    QVERIFY(bmpimg.constBits() != (const uchar *) bmp->DataAddress());
+    QCOMPARE(bmpimg2.constBits(), (const uchar *) bmp->DataAddress());
+    delete bmp;
+#endif
+}
+
+bool fuzzyCompareImages(const QImage &image1, const QImage &image2, int tolerance)
+{
+    if (image1.bytesPerLine() != image2.bytesPerLine()
+            || image1.width() != image2.width()
+            || image1.height() != image2.height()) {
+        return false;
+    }
+    for (int i = 0; i < image1.height(); i++) {
+        const uchar *line1 = image1.scanLine(i);
+        const uchar *line2 = image2.scanLine(i);
+        int bytes = image1.bytesPerLine();
+        for (int j = 0; j < bytes; j++) {
+            int delta = line1[j] - line2[j];
+            if (qAbs(delta) > tolerance)
+                return false;
+        }
+    }
+    return true;
+}
+
+void tst_QVolatileImage::paint()
+{
+#ifdef Q_OS_SYMBIAN
+    QVolatileImage img(100, 100, QImage::Format_ARGB32);
+    img.beginDataAccess();
+    img.imageRef().fill(QColor(Qt::green).rgba());
+    QPainter p(&img.imageRef());
+    p.drawRect(10, 10, 50, 50);
+    p.end();
+    img.endDataAccess();
+    QImage imgA = img.toImage();
+
+    // The following assumes that on openvg the pixmapdata is backed by QVolatileImage)
+    // (and that openvg is in use)
+    // It should pass with any engine nonetheless.
+    // See if painting into the underlying QImage succeeds.
+    QPixmap pm(100, 100);
+    if (pm.paintEngine()->type() == QPaintEngine::Raster) {
+        pm.fill(Qt::green);
+        QPainter pmp(&pm);
+        pmp.drawRect(10, 10, 50, 50);
+        pmp.end();
+        QImage imgB = pm.toImage();
+        QVERIFY(fuzzyCompareImages(imgA, imgB, 0));
+        // Exercise the accelerated QVolatileImagePaintEngine::drawPixmap() a bit.
+        QPixmap targetPm(pm.size());
+        targetPm.fill(Qt::black);
+        pmp.begin(&targetPm);
+        pmp.drawPixmap(QPointF(0, 0), pm);
+        pmp.end();
+        imgB = targetPm.toImage();
+        QVERIFY(fuzzyCompareImages(imgA, imgB, 0));
+        // Now the overload taking rects.
+        targetPm.fill(Qt::black);
+        pmp.begin(&targetPm);
+        QRectF rect(QPointF(0, 0), pm.size());
+        pmp.drawPixmap(rect, pm, rect);
+        pmp.end();
+        imgB = targetPm.toImage();
+        QVERIFY(fuzzyCompareImages(imgA, imgB, 0));
+    } else {
+        QSKIP("Pixmaps not painted via raster, skipping paint test", SkipSingle);
+    }
+#endif
+}
+
+void tst_QVolatileImage::fill()
+{
+    QVolatileImage img(100, 100, QImage::Format_ARGB32_Premultiplied);
+    QColor col = QColor(10, 20, 30);
+    img.fill(col.rgba());
+    QVERIFY(img.imageRef().pixel(1, 1) == col.rgba());
+    QVERIFY(img.toImage().pixel(1, 1) == col.rgba());
+
+#ifdef Q_OS_SYMBIAN
+    CFbsBitmap *bmp = static_cast<CFbsBitmap *>(img.duplicateNativeImage());
+    QVERIFY(bmp);
+    TRgb pix;
+    bmp->GetPixel(pix, TPoint(1, 1));
+    QCOMPARE(pix.Red(), col.red());
+    QCOMPARE(pix.Green(), col.green());
+    QCOMPARE(pix.Blue(), col.blue());
+    delete bmp;
+#endif
+}
+
+void tst_QVolatileImage::copy()
+{
+    QVolatileImage img(100, 100, QImage::Format_RGB32);
+    img.beginDataAccess();
+    img.imageRef().fill(QColor(Qt::green).rgba());
+    QPainter p(&img.imageRef());
+    p.drawRect(10, 10, 50, 50);
+    p.end();
+    img.endDataAccess();
+
+    QVolatileImage img2(100, 100, QImage::Format_RGB32);
+    img2.copyFrom(&img, QRect());
+    QImage imgA = img.toImage();
+    QImage imgB = img2.toImage();
+    QCOMPARE(imgA.size(), imgB.size());
+    QVERIFY(fuzzyCompareImages(imgA, imgB, 0));
+
+    img2 = QVolatileImage(20, 20, QImage::Format_RGB32);
+    img2.copyFrom(&img, QRect(5, 5, 20, 20));
+    imgA = img.toImage().copy(5, 5, 20, 20);
+    imgB = img2.toImage();
+    QCOMPARE(imgA.size(), imgB.size());
+    QVERIFY(fuzzyCompareImages(imgA, imgB, 0));
+}
+
+void tst_QVolatileImage::bitmap()
+{
+#ifdef Q_OS_SYMBIAN
+    CFbsBitmap *bmp = new CFbsBitmap;
+    QVERIFY(bmp->Create(TSize(100, 50), EColor64K) == KErrNone);
+    QVolatileImage bmpimg(bmp);
+    CFbsBitmap *dupbmp = static_cast<CFbsBitmap *>(bmpimg.duplicateNativeImage());
+    QVERIFY(dupbmp);
+    QVERIFY(dupbmp != bmp);
+    QCOMPARE(dupbmp->DataAddress(), bmp->DataAddress());
+    delete dupbmp;
+    delete bmp;
+    bmpimg.beginDataAccess();
+    qMemSet(bmpimg.bits(), 0, bmpimg.byteCount());
+    qMemSet(bmpimg.bits(), 1, bmpimg.bytesPerLine() * bmpimg.height());
+    bmpimg.endDataAccess();
+
+    // Test bgr->rgb conversion in case of EColor16M.
+    bmp = new CFbsBitmap;
+    QVERIFY(bmp->Create(TSize(101, 89), EColor16M) == KErrNone);
+    bmp->BeginDataAccess();
+    TUint32 *addr = bmp->DataAddress();
+    uint rgb = QColor(10, 20, 30).rgb();
+    qMemCopy(bmp->DataAddress(), &rgb, 3);
+    bmp->EndDataAccess();
+    TRgb symrgb;
+    bmp->GetPixel(symrgb, TPoint(0, 0));
+    QVERIFY(symrgb.Red() == 10 && symrgb.Green() == 20 && symrgb.Blue() == 30);
+    bmpimg = QVolatileImage(bmp);
+    QVERIFY(bmpimg.toImage().pixel(0, 0) == rgb);
+    // check if there really was a conversion
+    bmp->BeginDataAccess();
+    bmpimg.beginDataAccess();
+    qMemCopy(&rgb, bmpimg.constBits(), 3);
+    uint rgb2 = rgb;
+    qMemCopy(&rgb2, bmp->DataAddress(), 3);
+    QVERIFY(rgb != rgb2);
+    bmpimg.endDataAccess(true);
+    bmp->EndDataAccess(true);
+    delete bmp;
+
+    bmp = new CFbsBitmap;
+    QVERIFY(bmp->Create(TSize(101, 89), EGray2) == KErrNone);
+    bmpimg = QVolatileImage(bmp); // inverts pixels, but should do it in place
+    QCOMPARE(bmpimg.constBits(), (const uchar *) bmp->DataAddress());
+    QCOMPARE(bmpimg.format(), QImage::Format_MonoLSB);
+    bmpimg.ensureFormat(QImage::Format_ARGB32_Premultiplied);
+    QVERIFY(bmpimg.constBits() != (const uchar *) bmp->DataAddress());
+    QCOMPARE(bmpimg.format(), QImage::Format_ARGB32_Premultiplied);
+    delete bmp;
+
+    // The following two formats must be optimal always.
+    bmp = new CFbsBitmap;
+    QVERIFY(bmp->Create(TSize(101, 89), EColor16MAP) == KErrNone);
+    bmpimg = QVolatileImage(bmp);
+    QCOMPARE(bmpimg.format(), QImage::Format_ARGB32_Premultiplied);
+    QCOMPARE(bmpimg.constBits(), (const uchar *) bmp->DataAddress());
+    bmpimg.ensureFormat(QImage::Format_ARGB32_Premultiplied);
+    QCOMPARE(bmpimg.constBits(), (const uchar *) bmp->DataAddress());
+    delete bmp;
+    bmp = new CFbsBitmap;
+    QVERIFY(bmp->Create(TSize(101, 89), EColor16MU) == KErrNone);
+    bmpimg = QVolatileImage(bmp);
+    QCOMPARE(bmpimg.format(), QImage::Format_RGB32);
+    QCOMPARE(bmpimg.constBits(), (const uchar *) bmp->DataAddress());
+    bmpimg.ensureFormat(QImage::Format_RGB32);
+    QCOMPARE(bmpimg.constBits(), (const uchar *) bmp->DataAddress());
+    delete bmp;
+
+#else
+    QSKIP("CFbsBitmap is only available on Symbian, skipping bitmap test", SkipSingle);
+#endif
+}
+
+int main(int argc, char *argv[])
+{
+    QApplication::setGraphicsSystem("openvg");
+    QApplication app(argc, argv);
+    tst_QVolatileImage tc;
+    return QTest::qExec(&tc, argc, argv);
+}
+
+#include "tst_qvolatileimage.moc"