From 4531ffbd8aa2cc0ae656715e449caca1649c18b9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Samuel=20R=C3=B8dal?= Date: Thu, 29 Oct 2009 14:28:36 +0100 Subject: Added QImagePixmapCleanupHooks functions for enabling hooks. Better than having to befriend QPixmapData and setting is_cached manually. Reviewed-by: Tom Cooksey --- src/gui/image/qimagepixmapcleanuphooks.cpp | 18 +++++++++++++++++- src/gui/image/qimagepixmapcleanuphooks_p.h | 4 ++++ src/gui/image/qpixmapdata_p.h | 3 +-- src/opengl/qgl.cpp | 4 ++-- src/opengl/qgl_x11.cpp | 3 ++- src/opengl/qgl_x11egl.cpp | 3 ++- 6 files changed, 28 insertions(+), 7 deletions(-) diff --git a/src/gui/image/qimagepixmapcleanuphooks.cpp b/src/gui/image/qimagepixmapcleanuphooks.cpp index ac30646..35322e9 100644 --- a/src/gui/image/qimagepixmapcleanuphooks.cpp +++ b/src/gui/image/qimagepixmapcleanuphooks.cpp @@ -40,7 +40,8 @@ ****************************************************************************/ #include "qimagepixmapcleanuphooks_p.h" -#include "qpixmapdata_p.h" +#include "private/qpixmapdata_p.h" +#include "private/qimage_p.h" QT_BEGIN_NAMESPACE @@ -132,4 +133,19 @@ void QImagePixmapCleanupHooks::executeImageHooks(qint64 key) qt_image_cleanup_hook_64(key); } +void QImagePixmapCleanupHooks::enableCleanupHooks(const QPixmap &pixmap) +{ + enableCleanupHooks(const_cast(pixmap).data_ptr().data()); +} + +void QImagePixmapCleanupHooks::enableCleanupHooks(QPixmapData *pixmapData) +{ + pixmapData->is_cached = true; +} + +void QImagePixmapCleanupHooks::enableCleanupHooks(const QImage &image) +{ + const_cast(image).data_ptr()->is_cached = true; +} + QT_END_NAMESPACE diff --git a/src/gui/image/qimagepixmapcleanuphooks_p.h b/src/gui/image/qimagepixmapcleanuphooks_p.h index 16c8974..9e490d7 100644 --- a/src/gui/image/qimagepixmapcleanuphooks_p.h +++ b/src/gui/image/qimagepixmapcleanuphooks_p.h @@ -70,6 +70,10 @@ public: static QImagePixmapCleanupHooks *instance(); + static void enableCleanupHooks(const QImage &image); + static void enableCleanupHooks(const QPixmap &pixmap); + static void enableCleanupHooks(QPixmapData *pixmapData); + // Gets called when a pixmap is about to be modified: void addPixmapModificationHook(_qt_pixmap_cleanup_hook_pm); diff --git a/src/gui/image/qpixmapdata_p.h b/src/gui/image/qpixmapdata_p.h index 2f4f201..e99409c 100644 --- a/src/gui/image/qpixmapdata_p.h +++ b/src/gui/image/qpixmapdata_p.h @@ -131,12 +131,11 @@ protected: private: friend class QPixmap; - friend class QGLContextPrivate; friend class QX11PixmapData; friend class QS60PixmapData; + friend class QImagePixmapCleanupHooks; // Needs to set is_cached friend class QGLTextureCache; //Needs to check the reference count friend class QExplicitlySharedDataPointer; - friend bool qt_createEGLSurfaceForPixmap(QPixmapData*, bool); // Needs to set is_cached QAtomicInt ref; int detach_no; diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp index e80521b..3fec1f0 100644 --- a/src/opengl/qgl.cpp +++ b/src/opengl/qgl.cpp @@ -2137,7 +2137,7 @@ QGLTexture *QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G Q_ASSERT(texture); if (texture->id > 0) - const_cast(image).data_ptr()->is_cached = true; + QImagePixmapCleanupHooks::enableCleanupHooks(image); return texture; } @@ -2396,7 +2396,7 @@ QGLTexture *QGLContextPrivate::bindTexture(const QPixmap &pixmap, GLenum target, Q_ASSERT(texture); if (texture->id > 0) - const_cast(pixmap).data_ptr()->is_cached = true; + QImagePixmapCleanupHooks::enableCleanupHooks(pixmap); return texture; } diff --git a/src/opengl/qgl_x11.cpp b/src/opengl/qgl_x11.cpp index 86e593d..899047a 100644 --- a/src/opengl/qgl_x11.cpp +++ b/src/opengl/qgl_x11.cpp @@ -53,6 +53,7 @@ #include #include #include +#include #ifdef Q_OS_HPUX // for GLXPBuffer #include @@ -1704,7 +1705,7 @@ QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData *pmd, con pixmapData->gl_surface = (Qt::HANDLE)glxPixmap; // Make sure the cleanup hook gets called so we can delete the glx pixmap - pixmapData->is_cached = true; + QImagePixmapCleanupHooks::enableCleanupHooks(pixmapData); } GLuint textureId; diff --git a/src/opengl/qgl_x11egl.cpp b/src/opengl/qgl_x11egl.cpp index 7180682..9b20297 100644 --- a/src/opengl/qgl_x11egl.cpp +++ b/src/opengl/qgl_x11egl.cpp @@ -42,6 +42,7 @@ #include "qgl.h" #include #include +#include #include #include #include "qgl_egl_p.h" @@ -531,7 +532,7 @@ bool Q_OPENGL_EXPORT qt_createEGLSurfaceForPixmap(QPixmapData* pmd, bool readOnl Q_ASSERT(sizeof(Qt::HANDLE) >= sizeof(EGLSurface)); // Just to make totally sure! pixmapData->gl_surface = (Qt::HANDLE)pixmapSurface; - pixmapData->is_cached = true; // Make sure the cleanup hook gets called + QImagePixmapCleanupHooks::enableCleanupHooks(pixmapData); // Make sure the cleanup hook gets called return true; } -- cgit v0.12 From 2f9c37c4b48c4b5005c89f1c5a5fa036e1e22811 Mon Sep 17 00:00:00 2001 From: Eskil Abrahamsen Blomfeldt Date: Thu, 29 Oct 2009 17:14:47 +0100 Subject: Avoid infinite loop when laying out text with unconvertible chars When the stringToCMap() fails, it can be because it did not have enough space in the layout, or it can because of other errors. In order to implement "try-again" processing in a simple way, we had an infinite loop which assumed that stringToCMap() would always succeed in the second run (which would be the case if the only possible error was "not enough space".) Since there are other possible failures not related to the number of glyphs, you could easily get into an infinite loop here, e.g. when laying out text that contains the Byte Order Mark. The fix changes the implementation to explictly try stringToCMap() twice at max, and is also how it's implemented in the default qtextengine.cpp. Task-number: QTBUG-4680 Reviewed-by: Trond --- src/gui/text/qtextengine_mac.cpp | 73 ++++++++++++++---------------- tests/auto/qtextlayout/tst_qtextlayout.cpp | 13 ++++++ 2 files changed, 48 insertions(+), 38 deletions(-) diff --git a/src/gui/text/qtextengine_mac.cpp b/src/gui/text/qtextengine_mac.cpp index eeccc72..54be53b 100644 --- a/src/gui/text/qtextengine_mac.cpp +++ b/src/gui/text/qtextengine_mac.cpp @@ -594,53 +594,50 @@ void QTextEngine::shapeTextMac(int item) const str = reinterpret_cast(uc); } - while (true) { - ensureSpace(num_glyphs); - num_glyphs = layoutData->glyphLayout.numGlyphs - layoutData->used; - - QGlyphLayout g = availableGlyphs(&si); - g.numGlyphs = num_glyphs; - unsigned short *log_clusters = logClusters(&si); + ensureSpace(num_glyphs); + num_glyphs = layoutData->glyphLayout.numGlyphs - layoutData->used; - if (fe->stringToCMap(str, - len, - &g, - &num_glyphs, - flags, - log_clusters, - attributes())) { + QGlyphLayout g = availableGlyphs(&si); + g.numGlyphs = num_glyphs; + unsigned short *log_clusters = logClusters(&si); - heuristicSetGlyphAttributes(str, len, &g, log_clusters, num_glyphs); - break; - } + bool stringToCMapFailed = false; + if (!fe->stringToCMap(str, len, &g, &num_glyphs, flags, log_clusters, attributes())) { + ensureSpace(num_glyphs); + stringToCMapFailed = fe->stringToCMap(str, len, &g, &num_glyphs, flags, log_clusters, + attributes()); } - si.num_glyphs = num_glyphs; + if (!stringToCMapFailed) { + heuristicSetGlyphAttributes(str, len, &g, log_clusters, num_glyphs); - layoutData->used += si.num_glyphs; + si.num_glyphs = num_glyphs; - QGlyphLayout g = shapedGlyphs(&si); + layoutData->used += si.num_glyphs; - if (si.analysis.script == QUnicodeTables::Arabic) { - QVarLengthArray props(len + 2); - QArabicProperties *properties = props.data(); - int f = si.position; - int l = len; - if (f > 0) { - --f; - ++l; - ++properties; - } - if (f + l < layoutData->string.length()) { - ++l; - } - qt_getArabicProperties((const unsigned short *)(layoutData->string.unicode()+f), l, props.data()); + QGlyphLayout g = shapedGlyphs(&si); - unsigned short *log_clusters = logClusters(&si); + if (si.analysis.script == QUnicodeTables::Arabic) { + QVarLengthArray props(len + 2); + QArabicProperties *properties = props.data(); + int f = si.position; + int l = len; + if (f > 0) { + --f; + ++l; + ++properties; + } + if (f + l < layoutData->string.length()) { + ++l; + } + qt_getArabicProperties((const unsigned short *)(layoutData->string.unicode()+f), l, props.data()); - for (int i = 0; i < len; ++i) { - int gpos = log_clusters[i]; - g.attributes[gpos].justification = properties[i].justification; + unsigned short *log_clusters = logClusters(&si); + + for (int i = 0; i < len; ++i) { + int gpos = log_clusters[i]; + g.attributes[gpos].justification = properties[i].justification; + } } } diff --git a/tests/auto/qtextlayout/tst_qtextlayout.cpp b/tests/auto/qtextlayout/tst_qtextlayout.cpp index fe87dfb..7c3f4f2 100644 --- a/tests/auto/qtextlayout/tst_qtextlayout.cpp +++ b/tests/auto/qtextlayout/tst_qtextlayout.cpp @@ -118,6 +118,7 @@ private slots: void smallTextLengthWordWrap(); void smallTextLengthWrapAtWordBoundaryOrAnywhere(); void testLineBreakingAllSpaces(); + void lineWidthFromBOM(); private: @@ -1306,6 +1307,18 @@ void tst_QTextLayout::columnWrapWithTabs() } +void tst_QTextLayout::lineWidthFromBOM() +{ + const QString string(QChar(0xfeff)); // BYTE ORDER MARK + QTextLayout layout(string); + layout.beginLayout(); + QTextLine line = layout.createLine(); + line.setLineWidth(INT_MAX / 256); + layout.endLayout(); + + // Don't spin into an infinite loop + } + QTEST_MAIN(tst_QTextLayout) #include "tst_qtextlayout.moc" -- cgit v0.12