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authorGunnar Sletta <gunnar@trolltech.com>2009-04-15 06:32:42 (GMT)
committerGunnar Sletta <gunnar@trolltech.com>2009-04-20 08:10:36 (GMT)
commitfee1423eba48746d46e13c02374249d1760219d7 (patch)
tree59b9aaeb0bd5c28c7c002d8aa95e65505b7d9472 /src/gui/painting/qpaintengine_raster.cpp
parent9d9889682c79bacb803ef5613502e7307c1d16bd (diff)
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Some ifdefs for debugging clipping performance
Diffstat (limited to 'src/gui/painting/qpaintengine_raster.cpp')
-rw-r--r--src/gui/painting/qpaintengine_raster.cpp36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index addd63d..e981f8d 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -1140,6 +1140,33 @@ void QRasterPaintEnginePrivate::updateMatrixData(QSpanData *spanData, const QBru
}
}
+// #define QT_CLIPPING_RATIOS
+
+#ifdef QT_CLIPPING_RATIOS
+int rectClips;
+int regionClips;
+int totalClips;
+
+static void checkClipRatios(QRasterPaintEnginePrivate *d)
+{
+ if (d->clip()->hasRectClip)
+ rectClips++;
+ if (d->clip()->hasRegionClip)
+ regionClips++;
+ totalClips++;
+
+ if ((totalClips % 5000) == 0) {
+ printf("Clipping ratio: rectangular=%f%%, region=%f%%, complex=%f%%\n",
+ rectClips * 100.0 / (qreal) totalClips,
+ regionClips * 100.0 / (qreal) totalClips,
+ (totalClips - rectClips - regionClips) * 100.0 / (qreal) totalClips);
+ totalClips = 0;
+ rectClips = 0;
+ regionClips = 0;
+ }
+
+}
+#endif
/*!
\internal
@@ -1241,6 +1268,10 @@ void QRasterPaintEngine::clip(const QVectorPath &path, Qt::ClipOperation op)
d->solid_color_filler.clip = d->clip();
d->solid_color_filler.adjustSpanMethods();
+
+#ifdef QT_CLIPPING_RATIOS
+ checkClipRatios(d);
+#endif
}
@@ -1315,6 +1346,11 @@ void QRasterPaintEngine::clip(const QRect &rect, Qt::ClipOperation op)
d->solid_color_filler.clip = d->clip();
d->solid_color_filler.adjustSpanMethods();
+
+
+#ifdef QT_CLIPPING_RATIOS
+ checkClipRatios(d);
+#endif
}
/*!