1 files changed, 0 insertions, 58 deletions
diff --git a/source/l/qt5/patches/qt5.qtbug-49452.patch b/source/l/qt5/patches/qt5.qtbug-49452.patch
deleted file mode 100644
index 4549ff16..00000000
--- a/source/l/qt5/patches/qt5.qtbug-49452.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From 6f423555eba55ccdf7287071e10576bc1b687fd2 Mon Sep 17 00:00:00 2001
-From: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
-Date: Mon, 1 Aug 2016 13:39:53 +0200
-Subject: [PATCH] REG: Fix unwanted cache flush in Freetype engine
-
-The Freetype cache was almost completely disabled by
-134c6db8587a8ce156d4fa31ffa62605821851b2 because after that
-change, the lockedAlphaMapForGlyph() function would no longer
-cut off early for empty glyphs like spaces, but rather go
-through all alpha map functions before it realized that there
-was nothing to render. This would in turn invalidate the cache
-for every empty glyph, causing all glyphs to be rerendered for
-every isolated word.
-
-This change adds back a cut off. This is only needed in the
-lockedAlphaMapForGlyph() function, since the superclass implementation
-of the other alpha map functions already contains a cut off for
-width/height == 0.
-
-[ChangeLog][Qt Gui][Text] Fixed a performance regression in Freetype
-engine that was introduced in Qt 5.5.
-
-Change-Id: I381285939909e99cc5fb5f3497fecf9fa871f29a
-Task-number: QTBUG-49452
-Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
----
- src/gui/text/qfontengine_ft.cpp | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
-diff --git a/src/gui/text/qfontengine_ft.cpp b/src/gui/text/qfontengine_ft.cpp
-index 4de41df..7c878da 100644
---- a/src/gui/text/qfontengine_ft.cpp
-+++ b/src/gui/text/qfontengine_ft.cpp
-@@ -1716,7 +1716,7 @@ glyph_metrics_t QFontEngineFT::alphaMapBoundingBox(glyph_t glyph, QFixed subPixe
- 
- static inline QImage alphaMapFromGlyphData(QFontEngineFT::Glyph *glyph, QFontEngine::GlyphFormat glyphFormat)
- {
--    if (glyph == Q_NULLPTR)
-+    if (glyph == Q_NULLPTR || glyph->height == 0 || glyph->width == 0)
-         return QImage();
- 
-     QImage::Format format = QImage::Format_Invalid;
-@@ -1764,11 +1764,15 @@ QImage *QFontEngineFT::lockedAlphaMapForGlyph(glyph_t glyphIndex, QFixed subPixe
- 
-     currentlyLockedAlphaMap = alphaMapFromGlyphData(glyph, neededFormat);
- 
-+    const bool glyphHasGeometry = glyph != Q_NULLPTR && glyph->height != 0 && glyph->width != 0;
-     if (!cacheEnabled && glyph != &emptyGlyph) {
-         currentlyLockedAlphaMap = currentlyLockedAlphaMap.copy();
-         delete glyph;
-     }
- 
-+    if (!glyphHasGeometry)
-+        return Q_NULLPTR;
-+
-     if (currentlyLockedAlphaMap.isNull())
-         return QFontEngine::lockedAlphaMapForGlyph(glyphIndex, subPixelPosition, neededFormat, t, offset);
-