From 7619c210217c85ef6e8d3571cce5d1272b1cb437 Mon Sep 17 00:00:00 2001 From: Kim Motoyoshi Kalland Date: Wed, 16 Jun 2010 12:10:03 +0200 Subject: Fixed infinite recursion when drawing very large painter paths. Task-number: QTBUG-11291 Reviewed-by: Gunnar --- src/gui/painting/qoutlinemapper.cpp | 8 ++++++-- src/gui/painting/qoutlinemapper_p.h | 4 +++- src/gui/painting/qpaintengine_raster.cpp | 11 +++++------ 3 files changed, 14 insertions(+), 9 deletions(-) diff --git a/src/gui/painting/qoutlinemapper.cpp b/src/gui/painting/qoutlinemapper.cpp index 962f34c..bf03545 100644 --- a/src/gui/painting/qoutlinemapper.cpp +++ b/src/gui/painting/qoutlinemapper.cpp @@ -234,12 +234,12 @@ void QOutlineMapper::endOutline() // Check for out of dev bounds... - const bool do_clip = (controlPointRect.left() < -QT_RASTER_COORD_LIMIT + const bool do_clip = !m_in_clip_elements && ((controlPointRect.left() < -QT_RASTER_COORD_LIMIT || controlPointRect.right() > QT_RASTER_COORD_LIMIT || controlPointRect.top() < -QT_RASTER_COORD_LIMIT || controlPointRect.bottom() > QT_RASTER_COORD_LIMIT || controlPointRect.width() > QT_RASTER_COORD_LIMIT - || controlPointRect.height() > QT_RASTER_COORD_LIMIT); + || controlPointRect.height() > QT_RASTER_COORD_LIMIT)); if (do_clip) { clipElements(elements, elementTypes(), element_count); @@ -353,6 +353,8 @@ void QOutlineMapper::clipElements(const QPointF *elements, // instead of going through convenience functionallity, but since // this part of code hardly every used, it shouldn't matter. + m_in_clip_elements = true; + QPainterPath path; if (!(m_outline.flags & QT_FT_OUTLINE_EVEN_ODD_FILL)) @@ -393,6 +395,8 @@ void QOutlineMapper::clipElements(const QPointF *elements, else convertPath(clippedPath); m_txop = old_txop; + + m_in_clip_elements = false; } QT_END_NAMESPACE diff --git a/src/gui/painting/qoutlinemapper_p.h b/src/gui/painting/qoutlinemapper_p.h index 39b7593..f64d03b 100644 --- a/src/gui/painting/qoutlinemapper_p.h +++ b/src/gui/painting/qoutlinemapper_p.h @@ -95,7 +95,8 @@ public: m_tags(0), m_contours(0), m_polygon_dev(0), - m_round_coords(false) + m_round_coords(false), + m_in_clip_elements(false) { } @@ -235,6 +236,7 @@ public: qreal m_dy; bool m_valid; + bool m_in_clip_elements; private: bool m_round_coords; diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp index f10f12f..a212718 100644 --- a/src/gui/painting/qpaintengine_raster.cpp +++ b/src/gui/painting/qpaintengine_raster.cpp @@ -459,13 +459,12 @@ bool QRasterPaintEngine::begin(QPaintDevice *device) QRasterPaintEngineState *s = state(); ensureOutlineMapper(); - d->outlineMapper->m_clip_rect = d->deviceRect.adjusted(-10, -10, 10, 10); - - // This is the upp - QRect bounds(-QT_RASTER_COORD_LIMIT, -QT_RASTER_COORD_LIMIT, - QT_RASTER_COORD_LIMIT*2 - 1, QT_RASTER_COORD_LIMIT * 2 - 1); - d->outlineMapper->m_clip_rect = bounds.intersected(d->outlineMapper->m_clip_rect); + d->outlineMapper->m_clip_rect = d->deviceRect; + if (d->outlineMapper->m_clip_rect.width() > QT_RASTER_COORD_LIMIT) + d->outlineMapper->m_clip_rect.setWidth(QT_RASTER_COORD_LIMIT); + if (d->outlineMapper->m_clip_rect.height() > QT_RASTER_COORD_LIMIT) + d->outlineMapper->m_clip_rect.setHeight(QT_RASTER_COORD_LIMIT); d->rasterizer->setClipRect(d->deviceRect); -- cgit v0.12