+++ /dev/null
-/****************************************************************************
-**
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the Qt scene graph research project.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** 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 <QtCore>
-#include <QtGui>
-
-#include <private/qsgdistancefieldglyphcache_p.h>
-
-static void usage()
-{
- qWarning("Usage: distfieldgen [options] <font_filename>");
- qWarning(" ");
- qWarning("Distfieldgen generates distance-field renderings of the provided font file,");
- qWarning("one for each font family/style it contains.");
- qWarning("Unless the QT_QML_DISTFIELDDIR environment variable is set, the renderings are");
- qWarning("saved in the fonts/distancefields directory where the Qt libraries are located.");
- qWarning("You can also override the output directory with the -d option.");
- qWarning(" ");
- qWarning(" options:");
- qWarning(" -d <directory>................................ output directory");
- qWarning(" --no-multithread.............................. don't use multiple threads to render distance-fields");
- qWarning(" --force-all-styles............................ force rendering of styles Normal, Bold, Italic and Bold Italic");
- qWarning(" -styles \"style1,style2,..\".................... force rendering of specified styles");
-
- qWarning(" ");
- exit(1);
-}
-
-void printProgress(int p)
-{
- printf("\r [");
- for (int i = 0; i < 50; ++i)
- printf(i < p / 2 ? "=" : " ");
- printf("]");
- printf(" %d%%", p);
- fflush(stdout);
-}
-
-class DistFieldGenTask : public QRunnable
-{
-public:
- DistFieldGenTask(QSGDistanceFieldGlyphCache *atlas, int c, int nbGlyph, QMap<int, QImage> *outList)
- : QRunnable()
- , m_atlas(atlas)
- , m_char(c)
- , m_nbGlyph(nbGlyph)
- , m_outList(outList)
- { }
-
- void run()
- {
- QImage df = m_atlas->renderDistanceFieldGlyph(m_char);
- QMutexLocker lock(&m_mutex);
- m_outList->insert(m_char, df);
- printProgress(float(m_outList->count()) / m_nbGlyph * 100);
- }
-
- static QMutex m_mutex;
- QSGDistanceFieldGlyphCache *m_atlas;
- int m_char;
- int m_nbGlyph;
- QMap<int, QImage> *m_outList;
-};
-
-QMutex DistFieldGenTask::m_mutex;
-
-static void generateDistanceFieldForFont(const QFont &font, const QString &destinationDir, bool multithread)
-{
- QSGDistanceFieldGlyphCache *atlas = QSGDistanceFieldGlyphCache::get(QGLContext::currentContext(), font);
- QFontDatabase db;
- QString fontString = font.family() + QLatin1String(" ") + db.styleString(font);
- qWarning("> Generating distance-field for font '%s' (%d glyphs)", fontString.toLatin1().constData(), atlas->glyphCount());
-
- QMap<int, QImage> distfields;
- for (int i = 0; i < atlas->glyphCount(); ++i) {
- if (multithread) {
- DistFieldGenTask *task = new DistFieldGenTask(atlas, i, atlas->glyphCount(), &distfields);
- QThreadPool::globalInstance()->start(task);
- } else {
- QImage df = atlas->renderDistanceFieldGlyph(i);
- distfields.insert(i, df);
- printProgress(float(distfields.count()) / atlas->glyphCount() * 100);
- }
- }
-
- if (multithread)
- QThreadPool::globalInstance()->waitForDone();
-
- // Combine dist fields in one image
- int size = qCeil(qSqrt(qreal(atlas->glyphCount()))) * 64;
- QImage output(size, size, QImage::Format_ARGB32_Premultiplied);
- output.fill(Qt::transparent);
- QPainter p(&output);
- int x, y = 0;
- for (QMap<int, QImage>::const_iterator i = distfields.constBegin(); i != distfields.constEnd(); ++i) {
- p.drawImage(x, y, i.value());
- x += 64;
- if (x >= size) {
- x = 0;
- y += 64;
- }
- }
- p.end();
- printProgress(100);
- printf("\n");
-
- // Save output
- QFileInfo dfi(destinationDir);
- if (!dfi.isDir()) {
- qWarning("Error: '%s' is not a directory.", destinationDir.toLatin1().constData());
- qWarning(" ");
- exit(1);
- }
-
- QString filename = font.family();
- filename.remove(QLatin1String(" "));
- QString italic = font.italic() ? QLatin1String("i") : QLatin1String("");
- QString bold = font.weight() > QFont::Normal ? QLatin1String("b") : QLatin1String("");
- filename = filename + bold + italic;
- QString out = QString(QLatin1String("%1/%2.png")).arg(destinationDir).arg(filename);
- output.save(out);
- qWarning(" Distance-field saved to '%s'\n", out.toLatin1().constData());
-}
-
-class MyWidget : public QGLWidget
-{
- Q_OBJECT
-public:
- MyWidget()
- : QGLWidget()
- { }
-
- ~MyWidget() { }
-
- void showEvent(QShowEvent *e)
- {
- QStringList args = QApplication::arguments();
-
- bool noMultithread = args.contains(QLatin1String("--no-multithread"));
- bool forceAllStyles = args.contains(QLatin1String("--force-all-styles"));
-
- QString fontFile;
- QString destDir;
- for (int i = 0; i < args.count(); ++i) {
- QString a = args.at(i);
- if (!a.startsWith('-') && QFileInfo(a).exists())
- fontFile = a;
- if (a == QLatin1String("-d"))
- destDir = args.at(++i);
- }
- if (destDir.isEmpty()) {
- destDir = QFileInfo(fontFile).canonicalPath();
- }
-
- QStringList customStyles;
- if (args.contains(QLatin1String("-styles"))) {
- int index = args.indexOf(QLatin1String("-styles"));
- QString styles = args.at(index + 1);
- customStyles = styles.split(QLatin1String(","));
- }
-
- // Load the font
- int fontID = QFontDatabase::addApplicationFont(fontFile);
- if (fontID == -1) {
- qWarning("Error: Invalid font file.");
- qWarning(" ");
- exit(1);
- }
-
- QStringList allStyles = QStringList() << QLatin1String("Normal")
- << QLatin1String("Bold")
- << QLatin1String("Italic")
- << QLatin1String("Bold Italic");
-
- // Generate distance-fields for all families and all styles provided by the font file
- QFontDatabase fontDatabase;
- QStringList families = QFontDatabase::applicationFontFamilies(fontID);
- int famCount = families.count();
- for (int i = 0; i < famCount; ++i) {
- QStringList styles;
- if (forceAllStyles)
- styles = allStyles;
- else if (customStyles.count() > 0)
- styles = customStyles;
- else
- styles = fontDatabase.styles(families.at(i));
-
- int styleCount = styles.count();
- for (int j = 0; j < styleCount; ++j) {
- QFont font;
- if (forceAllStyles || customStyles.count() > 0) {
- int weight = styles.at(j).contains(QLatin1String("Bold")) ? QFont::Bold : QFont::Normal;
- font = QFont(families.at(i), 10, weight, styles.at(j).contains(QLatin1String("Italic")));
- } else {
- font = fontDatabase.font(families.at(i), styles.at(j), 10); // point size is ignored
- }
- generateDistanceFieldForFont(font, destDir, !noMultithread);
- }
- }
-
- exit(0);
- }
-};
-
-int main(int argc, char *argv[])
-{
- QApplication app(argc, argv);
- QStringList args = QApplication::arguments();
-
- if (argc < 2
- || args.contains(QLatin1String("--help"))
- || args.contains(QLatin1String("-help"))
- || args.contains(QLatin1String("--h"))
- || args.contains(QLatin1String("-h")))
- usage();
-
-
- MyWidget w;
- w.show();
-
- return app.exec();
-}
-
-#include "main.moc"
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