2 files changed, 16 insertions, 10 deletions

diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h
index e537c343bb..0e46962784 100644
--- a/src/gui/painting/qdrawhelper_p.h
+++ b/src/gui/painting/qdrawhelper_p.h
@@ -64,6 +64,8 @@
 #include "private/qrasterdefs_p.h"
 #include <private/qsimd_p.h>
 
+#include <QtCore/qsharedpointer.h>
+
 QT_BEGIN_NAMESPACE
 
 #if defined(Q_CC_GNU)
@@ -335,7 +337,11 @@ struct QSpanData
         QGradientData gradient;
         QTextureData texture;
     };
-    QExplicitlySharedDataPointer<const QSharedData> cachedGradient;
+    class Pinnable {
+    protected:
+        ~Pinnable() {}
+    }; // QSharedPointer<const void> is not supported
+    QSharedPointer<const Pinnable> cachedGradient;
 
 
     void init(QRasterBuffer *rb, const QRasterPaintEngine *pe);
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index df96a993e3..6d5eaf5aed 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -4150,7 +4150,7 @@ void QRasterBuffer::flushToARGBImage(QImage *target) const
 class QGradientCache
 {
 public:
-    struct CacheInfo : public QSharedData
+    struct CacheInfo : QSpanData::Pinnable
     {
         inline CacheInfo(QGradientStops s, int op, QGradient::InterpolationMode mode) :
             stops(qMove(s)), opacity(op), interpolationMode(mode) {}
@@ -4161,9 +4161,9 @@ public:
         QGradient::InterpolationMode interpolationMode;
     };
 
-    typedef QMultiHash<quint64, QExplicitlySharedDataPointer<const CacheInfo> > QGradientColorTableHash;
+    typedef QMultiHash<quint64, QSharedPointer<const CacheInfo>> QGradientColorTableHash;
 
-    inline QExplicitlySharedDataPointer<const CacheInfo> getBuffer(const QGradient &gradient, int opacity) {
+    inline QSharedPointer<const CacheInfo> getBuffer(const QGradient &gradient, int opacity) {
         quint64 hash_val = 0;
 
         const QGradientStops stops = gradient.stops();
@@ -4177,7 +4177,7 @@ public:
             return addCacheElement(hash_val, gradient, opacity);
         else {
             do {
-                const QExplicitlySharedDataPointer<const CacheInfo> &cache_info = it.value();
+                const auto &cache_info = it.value();
                 if (cache_info->stops == stops && cache_info->opacity == opacity && cache_info->interpolationMode == gradient.interpolationMode())
                     return cache_info;
                 ++it;
@@ -4193,12 +4193,12 @@ protected:
     inline void generateGradientColorTable(const QGradient& g,
                                            QRgba64 *colorTable,
                                            int size, int opacity) const;
-    QExplicitlySharedDataPointer<const CacheInfo> addCacheElement(quint64 hash_val, const QGradient &gradient, int opacity) {
+    QSharedPointer<const CacheInfo> addCacheElement(quint64 hash_val, const QGradient &gradient, int opacity) {
         if (cache.size() == maxCacheSize()) {
             // may remove more than 1, but OK
             cache.erase(cache.begin() + (qrand() % maxCacheSize()));
         }
-        QExplicitlySharedDataPointer<CacheInfo> cache_entry(new CacheInfo (gradient.stops(), opacity, gradient.interpolationMode()));
+        auto cache_entry = QSharedPointer<CacheInfo>::create(gradient.stops(), opacity, gradient.interpolationMode());
         generateGradientColorTable(gradient, cache_entry->buffer64, paletteSize(), opacity);
         for (int i = 0; i < GRADIENT_STOPTABLE_SIZE; ++i)
             cache_entry->buffer32[i] = cache_entry->buffer64[i].toArgb32();
@@ -4438,7 +4438,7 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
             const QLinearGradient *g = static_cast<const QLinearGradient *>(brush.gradient());
             gradient.alphaColor = !brush.isOpaque() || alpha != 256;
 
-            QExplicitlySharedDataPointer<const QGradientCache::CacheInfo> cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
+            auto cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
             cachedGradient = cacheInfo;
             gradient.colorTable32 = cacheInfo->buffer32;
             gradient.colorTable64 = cacheInfo->buffer64;
@@ -4460,7 +4460,7 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
             const QRadialGradient *g = static_cast<const QRadialGradient *>(brush.gradient());
             gradient.alphaColor = !brush.isOpaque() || alpha != 256;
 
-            QExplicitlySharedDataPointer<const QGradientCache::CacheInfo> cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
+            auto cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
             cachedGradient = cacheInfo;
             gradient.colorTable32 = cacheInfo->buffer32;
             gradient.colorTable64 = cacheInfo->buffer64;
@@ -4486,7 +4486,7 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
             const QConicalGradient *g = static_cast<const QConicalGradient *>(brush.gradient());
             gradient.alphaColor = !brush.isOpaque() || alpha != 256;
 
-            QExplicitlySharedDataPointer<const QGradientCache::CacheInfo> cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
+            auto cacheInfo = qt_gradient_cache()->getBuffer(*g, alpha);
             cachedGradient = cacheInfo;
             gradient.colorTable32 = cacheInfo->buffer32;
             gradient.colorTable64 = cacheInfo->buffer64;