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+/****************************************************************************
+**
+** 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 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 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 "qpixmapdata_p.h"
+#include <QtCore/qbuffer.h>
+#include <QtGui/qbitmap.h>
+#include <QtGui/qimagereader.h>
+#include <private/qgraphicssystem_p.h>
+#include <private/qapplication_p.h>
+#include <private/qimagepixmapcleanuphooks_p.h>
+
+QT_BEGIN_NAMESPACE
+
+const uchar qt_pixmap_bit_mask[] = { 0x01, 0x02, 0x04, 0x08,
+ 0x10, 0x20, 0x40, 0x80 };
+
+QPixmapData *QPixmapData::create(int w, int h, PixelType type)
+{
+ QPixmapData *data;
+ QGraphicsSystem* gs = QApplicationPrivate::graphicsSystem();
+ if (gs)
+ data = gs->createPixmapData(static_cast<QPixmapData::PixelType>(type));
+ else
+ data = QGraphicsSystem::createDefaultPixmapData(static_cast<QPixmapData::PixelType>(type));
+ data->resize(w, h);
+ return data;
+}
+
+
+QPixmapData::QPixmapData(PixelType pixelType, int objectId)
+ : w(0),
+ h(0),
+ d(0),
+ is_null(true),
+ ref(0),
+ detach_no(0),
+ type(pixelType),
+ id(objectId),
+ ser_no(0),
+ is_cached(false)
+{
+}
+
+QPixmapData::~QPixmapData()
+{
+ // Sometimes the pixmap cleanup hooks will be called from derrived classes, which will
+ // then set is_cached to false. For example, on X11 QtOpenGL needs to delete the GLXPixmap
+ // or EGL Pixmap Surface for a given pixmap _before_ the native X11 pixmap is deleted,
+ // otherwise some drivers will leak the GL surface. In this case, QX11PixmapData will
+ // call the cleanup hooks itself before deleting the native pixmap and set is_cached to
+ // false.
+ if (is_cached) {
+ QImagePixmapCleanupHooks::executePixmapDataDestructionHooks(this);
+ is_cached = false;
+ }
+}
+
+QPixmapData *QPixmapData::createCompatiblePixmapData() const
+{
+ QPixmapData *d;
+ QGraphicsSystem *gs = QApplicationPrivate::graphicsSystem();
+ if (gs)
+ d = gs->createPixmapData(pixelType());
+ else
+ d = QGraphicsSystem::createDefaultPixmapData(pixelType());
+ return d;
+}
+
+static QImage makeBitmapCompliantIfNeeded(QPixmapData *d, const QImage &image, Qt::ImageConversionFlags flags)
+{
+ if (d->pixelType() == QPixmapData::BitmapType) {
+ QImage img = image.convertToFormat(QImage::Format_MonoLSB, flags);
+
+ // make sure image.color(0) == Qt::color0 (white)
+ // and image.color(1) == Qt::color1 (black)
+ const QRgb c0 = QColor(Qt::black).rgb();
+ const QRgb c1 = QColor(Qt::white).rgb();
+ if (img.color(0) == c0 && img.color(1) == c1) {
+ img.invertPixels();
+ img.setColor(0, c1);
+ img.setColor(1, c0);
+ }
+ return img;
+ }
+
+ return image;
+}
+
+void QPixmapData::fromImageReader(QImageReader *imageReader,
+ Qt::ImageConversionFlags flags)
+{
+ const QImage image = imageReader->read();
+ fromImage(image, flags);
+}
+
+bool QPixmapData::fromFile(const QString &fileName, const char *format,
+ Qt::ImageConversionFlags flags)
+{
+ QImage image = QImageReader(fileName, format).read();
+ if (image.isNull())
+ return false;
+ fromImage(makeBitmapCompliantIfNeeded(this, image, flags), flags);
+ return !isNull();
+}
+
+bool QPixmapData::fromData(const uchar *buf, uint len, const char *format, Qt::ImageConversionFlags flags)
+{
+ QByteArray a = QByteArray::fromRawData(reinterpret_cast<const char *>(buf), len);
+ QBuffer b(&a);
+ b.open(QIODevice::ReadOnly);
+ QImage image = QImageReader(&b, format).read();
+ fromImage(makeBitmapCompliantIfNeeded(this, image, flags), flags);
+ return !isNull();
+}
+
+void QPixmapData::copy(const QPixmapData *data, const QRect &rect)
+{
+ fromImage(data->toImage(rect), Qt::NoOpaqueDetection);
+}
+
+bool QPixmapData::scroll(int dx, int dy, const QRect &rect)
+{
+ Q_UNUSED(dx);
+ Q_UNUSED(dy);
+ Q_UNUSED(rect);
+ return false;
+}
+
+void QPixmapData::setMask(const QBitmap &mask)
+{
+ if (mask.size().isEmpty()) {
+ if (depth() != 1)
+ fromImage(toImage().convertToFormat(QImage::Format_RGB32),
+ Qt::AutoColor);
+ } else {
+ QImage image = toImage();
+ const int w = image.width();
+ const int h = image.height();
+
+ switch (image.depth()) {
+ case 1: {
+ const QImage imageMask = mask.toImage().convertToFormat(image.format());
+ for (int y = 0; y < h; ++y) {
+ const uchar *mscan = imageMask.scanLine(y);
+ uchar *tscan = image.scanLine(y);
+ int bytesPerLine = image.bytesPerLine();
+ for (int i = 0; i < bytesPerLine; ++i)
+ tscan[i] &= mscan[i];
+ }
+ break;
+ }
+ default: {
+ const QImage imageMask = mask.toImage().convertToFormat(QImage::Format_MonoLSB);
+ image = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
+ for (int y = 0; y < h; ++y) {
+ const uchar *mscan = imageMask.scanLine(y);
+ QRgb *tscan = (QRgb *)image.scanLine(y);
+ for (int x = 0; x < w; ++x) {
+ if (!(mscan[x>>3] & qt_pixmap_bit_mask[x&7]))
+ tscan[x] = 0;
+ }
+ }
+ break;
+ }
+ }
+ fromImage(image, Qt::AutoColor);
+ }
+}
+
+QBitmap QPixmapData::mask() const
+{
+ if (!hasAlphaChannel())
+ return QBitmap();
+
+ const QImage img = toImage();
+ const QImage image = (img.depth() < 32 ? img.convertToFormat(QImage::Format_ARGB32_Premultiplied) : img);
+ const int w = image.width();
+ const int h = image.height();
+
+ QImage mask(w, h, QImage::Format_MonoLSB);
+ if (mask.isNull()) // allocation failed
+ return QBitmap();
+
+ mask.setColorCount(2);
+ mask.setColor(0, QColor(Qt::color0).rgba());
+ mask.setColor(1, QColor(Qt::color1).rgba());
+
+ const int bpl = mask.bytesPerLine();
+
+ for (int y = 0; y < h; ++y) {
+ const QRgb *src = reinterpret_cast<const QRgb*>(image.scanLine(y));
+ uchar *dest = mask.scanLine(y);
+ memset(dest, 0, bpl);
+ for (int x = 0; x < w; ++x) {
+ if (qAlpha(*src) > 0)
+ dest[x >> 3] |= qt_pixmap_bit_mask[x & 7];
+ ++src;
+ }
+ }
+
+ return QBitmap::fromImage(mask);
+}
+
+QPixmap QPixmapData::transformed(const QTransform &matrix,
+ Qt::TransformationMode mode) const
+{
+ return QPixmap::fromImage(toImage().transformed(matrix, mode));
+}
+
+void QPixmapData::setAlphaChannel(const QPixmap &alphaChannel)
+{
+ QImage image = toImage();
+ image.setAlphaChannel(alphaChannel.toImage());
+ fromImage(image, Qt::AutoColor);
+}
+
+QPixmap QPixmapData::alphaChannel() const
+{
+ return QPixmap::fromImage(toImage().alphaChannel());
+}
+
+void QPixmapData::setSerialNumber(int serNo)
+{
+ ser_no = serNo;
+}
+
+QImage QPixmapData::toImage(const QRect &rect) const
+{
+ if (rect.contains(QRect(0, 0, w, h)))
+ return toImage();
+ else
+ return toImage().copy(rect);
+}
+
+QImage* QPixmapData::buffer()
+{
+ return 0;
+}
+
+#if defined(Q_OS_SYMBIAN)
+void* QPixmapData::toNativeType(NativeType /* type */)
+{
+ return 0;
+}
+
+void QPixmapData::fromNativeType(void* /* pixmap */, NativeType /* typre */)
+{
+ return;
+}
+#endif
+
+QT_END_NAMESPACE
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