QSGAdaptationLayer: Remove QLinkedList usage

This is O(n), which hurts with a large number of consumers.

Change-Id: I970da3ddee40cf4e47d2c278e9a480db1cf90cd3
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 4 insertions, 8 deletions

diff --git a/src/quick/scenegraph/qsgadaptationlayer.cpp b/src/quick/scenegraph/qsgadaptationlayer.cpp
index c64360f955..46af0f28f0 100644
--- a/src/quick/scenegraph/qsgadaptationlayer.cpp
+++ b/src/quick/scenegraph/qsgadaptationlayer.cpp
@@ -234,10 +234,8 @@ void QSGDistanceFieldGlyphCache::setGlyphsPosition(const QList<GlyphPosition> &g
     }
 
     if (!invalidatedGlyphs.isEmpty()) {
-        QLinkedList<QSGDistanceFieldGlyphConsumer *>::iterator it = m_registeredNodes.begin();
-        while (it != m_registeredNodes.end()) {
-            (*it)->invalidateGlyphs(invalidatedGlyphs);
-            ++it;
+        for (QSGDistanceFieldGlyphConsumerList::iterator iter = m_registeredNodes.begin(); iter != m_registeredNodes.end(); ++iter) {
+            iter->invalidateGlyphs(invalidatedGlyphs);
         }
     }
 }
@@ -280,10 +278,8 @@ void QSGDistanceFieldGlyphCache::setGlyphsTexture(const QVector<glyph_t> &glyphs
     }
 
     if (!invalidatedGlyphs.isEmpty()) {
-        QLinkedList<QSGDistanceFieldGlyphConsumer*>::iterator it = m_registeredNodes.begin();
-        while (it != m_registeredNodes.end()) {
-            (*it)->invalidateGlyphs(invalidatedGlyphs);
-            ++it;
+        for (QSGDistanceFieldGlyphConsumerList::iterator iter = m_registeredNodes.begin(); iter != m_registeredNodes.end(); ++iter) {
+            iter->invalidateGlyphs(invalidatedGlyphs);
         }
     }
 }