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    40 ****************************************************************************/

    41 #include <QtGui>

    42 #include <QtOpenGL>

    43 

    44 #include <qtest.h>

    45 

    46 #include <private/qpaintengine_opengl_p.h>

    47 

    48 class OpenGLBench : public QObject

    49 {

    50     Q_OBJECT

    51 

    52 private slots:

    53     void initTestCase();

    54     void cleanupTestCase();

    55 

    56     void imageDrawing_data();

    57     void imageDrawing();

    58 

    59     void pathDrawing_data();

    60     void pathDrawing();

    61 

    62     void painterOverhead();

    63 

    64     void startupCost_data();

    65     void startupCost();

    66 

    67     void lineDrawing();

    68 

    69     void textDrawing_data();

    70     void textDrawing();

    71 

    72     void clippedPainting_data();

    73     void clippedPainting();

    74 

    75     void gradients_data();

    76     void gradients();

    77 

    78 private:

    79     QGLPixelBuffer *pb;

    80 };

    81 

    82 void OpenGLBench::initTestCase()

    83 {

    84     pb = new QGLPixelBuffer(512, 512);

    85 

    86     QPainter p(pb);

    87     p.setRenderHint(QPainter::Antialiasing);

    88     p.setRenderHint(QPainter::HighQualityAntialiasing);

    89 

    90     p.drawImage(0, 0, QImage(256, 256, QImage::Format_ARGB32_Premultiplied));

    91 }

    92 

    93 void OpenGLBench::cleanupTestCase()

    94 {

    95     delete pb;

    96 }

    97 

    98 void OpenGLBench::imageDrawing_data()

    99 {

   100     QTest::addColumn<bool>("smoothPixmapTransform");

   101     QTest::addColumn<bool>("highQualityAntialiasing");

   102     QTest::addColumn<bool>("pixmap");

   103 

   104     for (int i = 0; i < (1 << 3); ++i) {

   105         bool smoothPixmapTransform = i & 1;

   106         bool highQualityAntialiasing = i & 2;

   107         bool pixmap = i & 4;

   108 

   109         QTest::newRow(QString("pixmap=%1 highQualityAntialiasing=%2 smoothPixmapTransform=%3")

   110                       .arg(pixmap).arg(highQualityAntialiasing).arg(smoothPixmapTransform).toAscii().data())

   111             << pixmap << highQualityAntialiasing << smoothPixmapTransform;

   112     }

   113 }

   114 

   115 void OpenGLBench::imageDrawing()

   116 {

   117     QFETCH(bool, smoothPixmapTransform);

   118     QFETCH(bool, highQualityAntialiasing);

   119     QFETCH(bool, pixmap);

   120 

   121     QImage img;

   122     QPixmap pm;

   123 

   124     if (pixmap)

   125         pm = QPixmap(800, 800);

   126     else

   127         img = QImage(800, 800, QImage::Format_ARGB32_Premultiplied);

   128 

   129     QPainter p(pb);

   130     p.setRenderHint(QPainter::SmoothPixmapTransform, smoothPixmapTransform);

   131     p.setRenderHint(QPainter::Antialiasing, highQualityAntialiasing);

   132     p.setRenderHint(QPainter::HighQualityAntialiasing, highQualityAntialiasing);

   133 

   134     QBENCHMARK {

   135         if (pixmap) {

   136             pm.detach();

   137             p.drawPixmap(0, 0, pm);

   138         } else {

   139             img.detach();

   140             p.drawImage(0, 0, img);

   141         }

   142     }

   143 }

   144 

   145 Q_DECLARE_METATYPE(QPainterPath)

   146 

   147 void OpenGLBench::pathDrawing_data()

   148 {

   149     QTest::addColumn<QPainterPath>("path");

   150     QTest::addColumn<bool>("highQualityAntialiasing");

   151 

   152     QList<QPair<QPainterPath, QLatin1String> > paths;

   153 

   154     {

   155         QPainterPath path;

   156         path.addRect(-100, -100, 200, 200);

   157         paths << qMakePair(path, QLatin1String("plain rect"));

   158     }

   159 

   160     {

   161         QPainterPath path;

   162         path.addRoundedRect(-100, -100, 200, 200, 50, 50);

   163         paths << qMakePair(path, QLatin1String("rounded rect"));

   164     }

   165 

   166     {

   167         QPainterPath path;

   168         path.addEllipse(-100, -100, 200, 200);

   169         paths << qMakePair(path, QLatin1String("ellipse"));

   170     }

   171 

   172     for (int j = 0; j < (1 << 1); ++j) {

   173         bool highQualityAntialiasing = j & 1;

   174 

   175         for (int i = 0; i < paths.size(); ++i) {

   176             QTest::newRow(QString("path=%1 highQualityAntialiasing=%2")

   177                     .arg(paths[i].second).arg(highQualityAntialiasing).toAscii().data())

   178                 << paths[i].first << highQualityAntialiasing;

   179         }

   180     }

   181 }

   182 

   183 void OpenGLBench::pathDrawing()

   184 {

   185     QFETCH(QPainterPath, path);

   186     QFETCH(bool, highQualityAntialiasing);

   187 

   188     // warm-up

   189     {

   190         QPainterPath dummy;

   191         dummy.addRect(-1, -1, 2, 2);

   192         QPainter p(pb);

   193         p.setRenderHint(QPainter::Antialiasing, highQualityAntialiasing);

   194         p.setRenderHint(QPainter::HighQualityAntialiasing, highQualityAntialiasing);

   195         p.translate(pb->width() / 2, pb->height() / 2);

   196         p.rotate(30);

   197         p.drawPath(dummy);

   198         p.end();

   199     }

   200 

   201     QPainter p(pb);

   202     p.setPen(Qt::NoPen);

   203     p.setBrush(Qt::black);

   204     p.translate(pb->width() / 2, pb->height() / 2);

   205 

   206     QBENCHMARK {

   207         p.setRenderHint(QPainter::Antialiasing, highQualityAntialiasing);

   208         p.setRenderHint(QPainter::HighQualityAntialiasing, highQualityAntialiasing);

   209 

   210         p.rotate(0.01);

   211         p.drawPath(path);

   212     }

   213 }

   214 

   215 void OpenGLBench::painterOverhead()

   216 {

   217     QBENCHMARK {

   218         QPainter p(pb);

   219     }

   220 }

   221 

   222 void OpenGLBench::startupCost_data()

   223 {

   224     QTest::addColumn<bool>("highQualityAntialiasing");

   225 

   226     QTest::newRow("highQualityAntialiasing=0") << false;

   227     QTest::newRow("highQualityAntialiasing=1") << true;

   228 }

   229 

   230 void OpenGLBench::startupCost()

   231 {

   232     QFETCH(bool, highQualityAntialiasing);

   233     QPainterPath path;

   234     path.addRoundedRect(-100, -100, 200, 200, 20, 20);

   235     QBENCHMARK {

   236         QGLPixelBuffer buffer(512, 512);

   237         QPainter p(&buffer);

   238         p.setRenderHint(QPainter::Antialiasing, highQualityAntialiasing);

   239         p.setRenderHint(QPainter::HighQualityAntialiasing, highQualityAntialiasing);

   240 

   241         p.translate(buffer.width() / 2, buffer.height() / 2);

   242         p.drawPath(path);

   243     }

   244 }

   245 

   246 void OpenGLBench::lineDrawing()

   247 {

   248     QPainter p(pb);

   249 

   250     QBENCHMARK {

   251         p.drawLine(10, 10, 500, 500);

   252     }

   253 }

   254 

   255 void OpenGLBench::textDrawing_data()

   256 {

   257     QTest::addColumn<int>("lines");

   258 

   259     int lines[] = { 1, 2, 4, 8, 16, 32, 64, 128 };

   260 

   261     QTest::newRow("text lines=1 (warmup run)") << 1;

   262     for (unsigned int i = 0; i < sizeof(lines) / sizeof(int); ++i)

   263         QTest::newRow(QString("text lines=%0").arg(lines[i]).toAscii().data()) << lines[i];

   264 }

   265 

   266 void OpenGLBench::textDrawing()

   267 {

   268     QPainter p(pb);

   269 

   270     QFETCH(int, lines);

   271 

   272     p.translate(0, 16);

   273     QBENCHMARK {

   274         for (int i = 0; i < lines; ++i)

   275             p.drawText(0, i, "Hello World!");

   276     }

   277 }

   278 

   279 void OpenGLBench::clippedPainting_data()

   280 {

   281     QTest::addColumn<QPainterPath>("path");

   282 

   283     QRectF rect = QRectF(0, 0, pb->width(), pb->height()).adjusted(5, 5, -5, -5);

   284 

   285     {

   286         QPainterPath path;

   287         path.addRect(rect);

   288         QTest::newRow("rect path") << path;

   289     }

   290 

   291     {

   292         QPainterPath path;

   293         path.addRoundedRect(rect, 5, 5);

   294         QTest::newRow("rounded rect path") << path;

   295     }

   296 

   297     {

   298         QPainterPath path;

   299         path.addEllipse(rect);

   300         QTest::newRow("ellipse path") << path;

   301     }

   302 }

   303 

   304 void OpenGLBench::clippedPainting()

   305 {

   306     QFETCH(QPainterPath, path);

   307 

   308     QBENCHMARK {

   309         QPainter p(pb);

   310         p.setPen(Qt::NoPen);

   311         p.setBrush(Qt::black);

   312 

   313         p.setClipPath(path);

   314         p.drawRect(0, 0, pb->width(), pb->height());

   315     }

   316 }

   317 

   318 Q_DECLARE_METATYPE(QGradient::Type)

   319 

   320 void OpenGLBench::gradients_data()

   321 {

   322     QTest::addColumn<QGradient::Type>("gradientType");

   323     QTest::addColumn<bool>("objectBoundingMode");

   324 

   325     QTest::newRow("warmup run") << QGradient::LinearGradient << false;

   326 

   327     QTest::newRow("linear gradient") << QGradient::LinearGradient << false;

   328     QTest::newRow("radial gradient") << QGradient::RadialGradient << false;

   329     QTest::newRow("conical gradient") << QGradient::ConicalGradient << false;

   330 

   331     QTest::newRow("linear gradient, object bounding mode") << QGradient::LinearGradient << true;

   332     QTest::newRow("radial gradient, object bounding mode") << QGradient::RadialGradient << true;

   333     QTest::newRow("conical gradient, object bounding mode") << QGradient::ConicalGradient << true;

   334 }

   335 

   336 void OpenGLBench::gradients()

   337 {

   338     QFETCH(QGradient::Type, gradientType);

   339     QFETCH(bool, objectBoundingMode);

   340 

   341     QPointF a;

   342     QPointF b = objectBoundingMode ? QPointF(1, 1) : QPointF(pb->width(), pb->height());

   343 

   344     QGradient gradient;

   345     switch (gradientType) {

   346     case QGradient::LinearGradient:

   347         gradient = QLinearGradient(a, b);

   348         break;

   349     case QGradient::RadialGradient:

   350         gradient = QRadialGradient(a, b.x() / 2, b);

   351         break;

   352     case QGradient::ConicalGradient:

   353         gradient = QConicalGradient((a + b)/2, 0);

   354         break;

   355     default:

   356         break;

   357     }

   358 

   359     if (objectBoundingMode)

   360         gradient.setCoordinateMode(QGradient::ObjectBoundingMode);

   361 

   362     gradient.setColorAt(0, Qt::red);

   363     gradient.setColorAt(0.2, Qt::blue);

   364     gradient.setColorAt(0.4, Qt::transparent);

   365     gradient.setColorAt(0.6, Qt::green);

   366     gradient.setColorAt(0.8, Qt::black);

   367     gradient.setColorAt(1, Qt::white);

   368 

   369     QPainter p(pb);

   370 

   371     QBENCHMARK {

   372         p.fillRect(0, 0, pb->width(), pb->height(), gradient);

   373         glFinish();

   374     }

   375 }

   376 

   377 QTEST_MAIN(OpenGLBench)

   378 

   379 #include "main.moc"