Long live Qt!

4 files changed, 573 insertions, 0 deletions

diff --git a/src/plugins/imageformats/tiff/main.cpp b/src/plugins/imageformats/tiff/main.cpp
new file mode 100644
index 0000000..f6590d4
--- /dev/null
+++ b/src/plugins/imageformats/tiff/main.cpp
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qimageiohandler.h>
+#include <qdebug.h>
+
+#ifndef QT_NO_IMAGEFORMATPLUGIN
+
+#ifdef QT_NO_IMAGEFORMAT_TIFF
+#undef QT_NO_IMAGEFORMAT_TIFF
+#endif
+#include "qtiffhandler.h"
+
+QT_BEGIN_NAMESPACE
+
+class QTiffPlugin : public QImageIOPlugin
+{
+public:
+    Capabilities capabilities(QIODevice * device, const QByteArray & format) const;
+    QImageIOHandler * create(QIODevice * device, const QByteArray & format = QByteArray()) const;
+    QStringList keys() const;
+};
+
+QImageIOPlugin::Capabilities QTiffPlugin::capabilities(QIODevice *device, const QByteArray &format) const
+{
+    if (format == "tiff" || format == "tif")
+        return Capabilities(CanRead | CanWrite);
+    if (!format.isEmpty())
+        return 0;
+    if (!device->isOpen())
+        return 0;
+
+    Capabilities cap;
+    if (device->isReadable() && QTiffHandler::canRead(device))
+        cap |= CanRead;
+    if (device->isWritable())
+        cap |= CanWrite;
+    return cap;
+}
+
+QImageIOHandler* QTiffPlugin::create(QIODevice *device, const QByteArray &format) const
+{
+    QImageIOHandler *tiffHandler = new QTiffHandler();
+    tiffHandler->setDevice(device);
+    tiffHandler->setFormat(format);
+    return tiffHandler;
+}
+
+QStringList QTiffPlugin::keys() const
+{
+    return QStringList() << QLatin1String("tiff") << QLatin1String("tif");
+}
+
+Q_EXPORT_STATIC_PLUGIN(QTiffPlugin)
+Q_EXPORT_PLUGIN2(qtiff, QTiffPlugin)
+
+QT_END_NAMESPACE
+
+#endif /* QT_NO_IMAGEFORMATPLUGIN */
diff --git a/src/plugins/imageformats/tiff/qtiffhandler.cpp b/src/plugins/imageformats/tiff/qtiffhandler.cpp
new file mode 100644
index 0000000..518e6d1
--- /dev/null
+++ b/src/plugins/imageformats/tiff/qtiffhandler.cpp
@@ -0,0 +1,328 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qtiffhandler.h"
+#include <qvariant.h>
+#include <qdebug.h>
+#include <qimage.h>
+#include <qglobal.h>
+extern "C" {
+#include "tiffio.h"
+}
+
+QT_BEGIN_NAMESPACE
+
+tsize_t qtiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
+{
+    QIODevice* device = static_cast<QTiffHandler*>(fd)->device();
+    return device->isReadable() ? device->read(static_cast<char *>(buf), size) : -1;
+}
+
+tsize_t qtiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
+{
+    return static_cast<QTiffHandler*>(fd)->device()->write(static_cast<char *>(buf), size);
+}
+
+toff_t qtiffSeekProc(thandle_t fd, toff_t off, int whence)
+{
+    QIODevice *device = static_cast<QTiffHandler*>(fd)->device();
+    switch (whence) {
+    case SEEK_SET:
+        device->seek(off);
+        break;
+    case SEEK_CUR:
+        device->seek(device->pos() + off);
+        break;
+    case SEEK_END:
+        device->seek(device->size() + off);
+        break;
+    }
+
+    return device->pos();
+}
+
+int qtiffCloseProc(thandle_t /*fd*/)
+{
+    return 0;
+}
+
+toff_t qtiffSizeProc(thandle_t fd)
+{
+    return static_cast<QTiffHandler*>(fd)->device()->size();
+}
+
+int qtiffMapProc(thandle_t /*fd*/, tdata_t* /*pbase*/, toff_t* /*psize*/)
+{
+    return 0;
+}
+
+void qtiffUnmapProc(thandle_t /*fd*/, tdata_t /*base*/, toff_t /*size*/)
+{
+}
+
+QTiffHandler::QTiffHandler() : QImageIOHandler()
+{
+    compression = NoCompression;
+}
+
+bool QTiffHandler::canRead() const
+{
+    if (canRead(device())) {
+        setFormat("tiff");
+        return true;
+    }
+    return false;
+}
+
+bool QTiffHandler::canRead(QIODevice *device)
+{
+    if (!device) {
+        qWarning("QTiffHandler::canRead() called with no device");
+        return false;
+    }
+
+    // current implementation uses TIFFClientOpen which needs to be
+    // able to seek, so sequential devices are not supported
+    QByteArray header = device->peek(4);
+    return header == QByteArray::fromRawData("\x49\x49\x2A\x00", 4)
+           || header == QByteArray::fromRawData("\x4D\x4D\x00\x2A", 4);
+}
+
+bool QTiffHandler::read(QImage *image)
+{
+    if (!canRead())
+        return false;
+
+    TIFF *tiff = TIFFClientOpen("foo",
+                                "r",
+                                this,
+                                qtiffReadProc,
+                                qtiffWriteProc,
+                                qtiffSeekProc,
+                                qtiffCloseProc,
+                                qtiffSizeProc,
+                                qtiffMapProc,
+                                qtiffUnmapProc);
+
+    if (tiff) {
+        uint32 width = 0;
+        uint32 height = 0;
+        TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &width);
+        TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &height);
+        if (image->size() != QSize(width, height) || image->format() != QImage::Format_ARGB32)
+            *image = QImage(width, height, QImage::Format_ARGB32);
+        if (!image->isNull()) {
+            if (TIFFReadRGBAImageOriented(tiff, width, height, reinterpret_cast<uint32 *>(image->bits()), ORIENTATION_TOPLEFT, 0)) {
+                uint16 resUnit = RESUNIT_NONE;
+                float resX = 0;
+                float resY = 0;
+                TIFFGetField(tiff, TIFFTAG_RESOLUTIONUNIT, &resUnit);
+                TIFFGetField(tiff, TIFFTAG_XRESOLUTION, &resX);
+                TIFFGetField(tiff, TIFFTAG_YRESOLUTION, &resY);
+                switch(resUnit) {
+                    case RESUNIT_CENTIMETER:
+                        image->setDotsPerMeterX(qRound(resX * 100));
+                        image->setDotsPerMeterY(qRound(resY * 100));
+                        break;
+                    case RESUNIT_INCH:
+                        image->setDotsPerMeterX(qRound(resX * (100 / 2.54)));
+                        image->setDotsPerMeterY(qRound(resY * (100 / 2.54)));
+                        break;
+                    default:
+                        // do nothing as defaults have already
+						// been set within the QImage class
+                        break;
+                }
+                for (uint32 y=0; y<height; ++y)
+                    convert32BitOrder(image->scanLine(y), width);
+            } else {
+                *image = QImage();
+            }
+        }
+        TIFFClose(tiff);
+    }
+
+    if (image->isNull())
+        return false;
+
+    return true;
+}
+
+bool QTiffHandler::write(const QImage &image)
+{
+    if (!device()->isWritable())
+        return false;
+
+    TIFF *tiff = TIFFClientOpen("foo",
+                                "w",
+                                this,
+                                qtiffReadProc,
+                                qtiffWriteProc,
+                                qtiffSeekProc,
+                                qtiffCloseProc,
+                                qtiffSizeProc,
+                                qtiffMapProc,
+                                qtiffUnmapProc);
+
+    if (tiff) {
+        int width = image.width();
+        int height = image.height();
+        int depth = 32;
+
+        if (!TIFFSetField(tiff, TIFFTAG_IMAGEWIDTH, width)
+                || !TIFFSetField(tiff, TIFFTAG_IMAGELENGTH, height)
+                || !TIFFSetField(tiff, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB)
+                || !TIFFSetField(tiff, TIFFTAG_COMPRESSION, compression == NoCompression ? COMPRESSION_NONE : COMPRESSION_LZW)
+                || !TIFFSetField(tiff, TIFFTAG_SAMPLESPERPIXEL, depth/8)
+                || !TIFFSetField(tiff, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG)
+                || !TIFFSetField(tiff, TIFFTAG_BITSPERSAMPLE, 8)) {
+            TIFFClose(tiff);
+            return false;
+        }
+
+        // try to do the ARGB32 conversion in chunks no greater than 16 MB
+        int chunks = (width * height * 4 / (1024 * 1024 * 16)) + 1;
+        int chunkHeight = qMax(height / chunks, 1);
+
+        int y = 0;
+        while (y < height) {
+            QImage chunk = image.copy(0, y, width, qMin(chunkHeight, height - y)).convertToFormat(QImage::Format_ARGB32);
+
+            int chunkStart = y;
+            int chunkEnd = y + chunk.height();
+            while (y < chunkEnd) {
+                if (QSysInfo::ByteOrder == QSysInfo::LittleEndian)
+                    convert32BitOrder(chunk.scanLine(y - chunkStart), width);
+                else
+                    convert32BitOrderBigEndian(chunk.scanLine(y - chunkStart), width);
+
+                if (TIFFWriteScanline(tiff, reinterpret_cast<uint32 *>(chunk.scanLine(y - chunkStart)), y) != 1) {
+                    TIFFClose(tiff);
+                    return false;
+                }
+                ++y;
+            }
+        }
+        TIFFClose(tiff);
+    } else {
+        return false;
+    }
+    return true;
+}
+
+QByteArray QTiffHandler::name() const
+{
+    return "tiff";
+}
+
+QVariant QTiffHandler::option(ImageOption option) const
+{
+    if (option == Size && canRead()) {
+        QSize imageSize;
+        qint64 pos = device()->pos();
+        TIFF *tiff = TIFFClientOpen("foo",
+                                    "r",
+                                    const_cast<QTiffHandler*>(this),
+                                    qtiffReadProc,
+                                    qtiffWriteProc,
+                                    qtiffSeekProc,
+                                    qtiffCloseProc,
+                                    qtiffSizeProc,
+                                    qtiffMapProc,
+                                    qtiffUnmapProc);
+
+        if (tiff) {
+            uint32 width = 0;
+            uint32 height = 0;
+            TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &width);
+            TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &height);
+            imageSize = QSize(width, height);
+        }
+        device()->seek(pos);
+        if (imageSize.isValid())
+            return imageSize;
+    } else if (option == CompressionRatio) {
+        return compression;
+    } else if (option == ImageFormat) {
+        return QImage::Format_ARGB32;
+    }
+    return QVariant();
+}
+
+void QTiffHandler::setOption(ImageOption option, const QVariant &value)
+{
+    if (option == CompressionRatio && value.type() == QVariant::Int)
+        compression = value.toInt();
+}
+
+bool QTiffHandler::supportsOption(ImageOption option) const
+{
+    return option == CompressionRatio
+            || option == Size
+            || option == ImageFormat;
+}
+
+void QTiffHandler::convert32BitOrder(void *buffer, int width)
+{
+    uint32 *target = reinterpret_cast<uint32 *>(buffer);
+    for (int32 x=0; x<width; ++x) {
+        uint32 p = target[x];
+        // convert between ARGB and ABGR
+        target[x] = (p & 0xff000000)
+                    | ((p & 0x00ff0000) >> 16)
+                    | (p & 0x0000ff00)
+                    | ((p & 0x000000ff) << 16);
+    }
+}
+
+void QTiffHandler::convert32BitOrderBigEndian(void *buffer, int width)
+{
+    uint32 *target = reinterpret_cast<uint32 *>(buffer);
+    for (int32 x=0; x<width; ++x) {
+        uint32 p = target[x];
+        target[x] = (p & 0xff000000) >> 24
+                    | (p & 0x00ff0000) << 8
+                    | (p & 0x0000ff00) << 8
+                    | (p & 0x000000ff) << 8;
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/plugins/imageformats/tiff/qtiffhandler.h b/src/plugins/imageformats/tiff/qtiffhandler.h
new file mode 100644
index 0000000..0c0d9ef
--- /dev/null
+++ b/src/plugins/imageformats/tiff/qtiffhandler.h
@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QTIFFHANDLER_H
+#define QTIFFHANDLER_H
+
+#include <QtGui/qimageiohandler.h>
+
+QT_BEGIN_NAMESPACE
+
+class QTiffHandler : public QImageIOHandler
+{
+public:
+    QTiffHandler();
+
+    bool canRead() const;
+    bool read(QImage *image);
+    bool write(const QImage &image);
+
+    QByteArray name() const;
+
+    static bool canRead(QIODevice *device);
+
+    QVariant option(ImageOption option) const;
+    void setOption(ImageOption option, const QVariant &value);
+    bool supportsOption(ImageOption option) const;
+
+    enum Compression {
+        NoCompression = 0,
+        LzwCompression = 1
+    };
+private:
+    void convert32BitOrder(void *buffer, int width);
+    void convert32BitOrderBigEndian(void *buffer, int width);
+    int compression;
+};
+
+QT_END_NAMESPACE
+
+#endif // QTIFFHANDLER_H
diff --git a/src/plugins/imageformats/tiff/tiff.pro b/src/plugins/imageformats/tiff/tiff.pro
new file mode 100644
index 0000000..8930cf3
--- /dev/null
+++ b/src/plugins/imageformats/tiff/tiff.pro
@@ -0,0 +1,70 @@
+TARGET  = qtiff
+include(../../qpluginbase.pri)
+
+QTDIR_build:REQUIRES = "!contains(QT_CONFIG, no-tiff)"
+
+HEADERS += qtiffhandler.h
+SOURCES += main.cpp \
+           qtiffhandler.cpp
+
+contains(QT_CONFIG, system-tiff) {
+        unix:LIBS += -ltiff
+        win32:LIBS += libtiff.lib
+}
+!contains(QT_CONFIG, system-tiff) {
+	INCLUDEPATH += ../../../3rdparty/libtiff/libtiff
+	SOURCES  += \
+	    ../../../3rdparty/libtiff/libtiff/tif_aux.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_close.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_codec.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_color.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_compress.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_dir.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_dirinfo.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_dirread.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_dirwrite.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_dumpmode.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_error.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_extension.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_fax3.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_fax3sm.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_flush.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_getimage.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_luv.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_lzw.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_next.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_open.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_packbits.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_pixarlog.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_predict.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_print.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_read.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_strip.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_swab.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_thunder.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_tile.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_version.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_warning.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_write.c \
+	    ../../../3rdparty/libtiff/libtiff/tif_zip.c
+	    win32 {
+	       SOURCES += ../../../3rdparty/libtiff/libtiff/tif_win32.c
+	    }
+            unix: {
+	       SOURCES += ../../../3rdparty/libtiff/libtiff/tif_unix.c
+            }
+            wince*: {
+               SOURCES += ../../../corelib/kernel/qfunctions_wince.cpp
+            }
+}
+
+contains(QT_CONFIG, system-zlib) {
+        LIBS += -lz
+}
+!contains(QT_CONFIG, system-zlib) {
+        INCLUDEPATH +=  ../../../3rdparty/zlib
+}
+
+QTDIR_build:DESTDIR = $$QT_BUILD_TREE/plugins/imageformats
+target.path += $$[QT_INSTALL_PLUGINS]/imageformats
+INSTALLS += target