File 0003-Support-autohint-and-lcdfilter-fontconfig-... of Package libqt5-qtbase

Overview Repositories Revisions Requests Users Attributes Meta

File 0003-Support-autohint-and-lcdfilter-fontconfig-configurat.patch of Package libqt5-qtbase (Revision 4b7345a3b21df76dc28b3bba2c6fbfc0)

Currently displaying revision 4b7345a3b21df76dc28b3bba2c6fbfc0 , Show latest

From e5d61b2531ce2000e7e230d4cfdb793fa2b686e8 Mon Sep 17 00:00:00 2001
From: Allan Sandfeld Jensen <allan.jensen@digia.com>
Date: Mon, 11 Aug 2014 14:03:35 +0200
Subject: [PATCH 3/4] Support autohint and lcdfilter fontconfig configuration

This patch adds support for reading autohint and lcdfilter settings
from fontconfig and pass them on to freetype.

Task-number: QTBUG-32254
Change-Id: Iaa69b70f7005ee7f21126a8d984c07b3a46a3e7f
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
(cherry picked from commit b35176f43a953d56380414f05834c7918762cb83)
---
 src/gui/text/qfontengine_ft.cpp                      |  4 ++++
 src/gui/text/qfontengine_ft_p.h                      |  1 +
 .../fontdatabases/fontconfig/qfontconfigdatabase.cpp | 20 ++++++++++++++++++++
 3 files changed, 25 insertions(+)

diff --git a/src/gui/text/qfontengine_ft.cpp b/src/gui/text/qfontengine_ft.cpp
index ad4276b..eef316b 100644
--- a/src/gui/text/qfontengine_ft.cpp
+++ b/src/gui/text/qfontengine_ft.cpp
@@ -678,6 +678,7 @@ QFontEngineFT::QFontEngineFT(const QFontDef &fd)
     const QByteArray env = qgetenv("QT_NO_FT_CACHE");
     cacheEnabled = env.isEmpty() || env.toInt() == 0;
     m_subPixelPositionCount = 4;
+    forceAutoHint = false;
 }
 
 QFontEngineFT::~QFontEngineFT()
@@ -832,6 +833,9 @@ int QFontEngineFT::loadFlags(QGlyphSet *set, GlyphFormat format, int flags,
     else
         load_flags |= load_target;
 
+    if (forceAutoHint)
+        load_flags |= FT_LOAD_FORCE_AUTOHINT;
+
     return load_flags;
 }
 
diff --git a/src/gui/text/qfontengine_ft_p.h b/src/gui/text/qfontengine_ft_p.h
index ba603b9..09c70c5 100644
--- a/src/gui/text/qfontengine_ft_p.h
+++ b/src/gui/text/qfontengine_ft_p.h
@@ -307,6 +307,7 @@ protected:
     int lcdFilterType;
     bool embeddedbitmap;
     bool cacheEnabled;
+    bool forceAutoHint;
 
 private:
     friend class QFontEngineFTRawFont;
diff --git a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
index d95bcb9..0bf119c 100644
--- a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
+++ b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
@@ -625,6 +625,16 @@ QFontEngine *QFontconfigDatabase::fontEngine(const QFontDef &f, void *usrPtr)
     if (match) {
         engine->setDefaultHintStyle(defaultHintStyleFromMatch((QFont::HintingPreference)f.hintingPreference, match));
 
+        FcBool fc_autohint;
+        if (FcPatternGetBool(match, FC_AUTOHINT,0, &fc_autohint) == FcResultMatch)
+            engine->forceAutoHint = fc_autohint;
+
+#if defined(FT_LCD_FILTER_H)
+        int lcdFilter;
+        if (FcPatternGetInteger(match, FC_LCD_FILTER, 0, &lcdFilter) == FcResultMatch)
+            engine->lcdFilterType = lcdFilter;
+#endif
+
         if (antialias) {
             // If antialiasing is not fully disabled, fontconfig may still disable it on a font match basis.
             FcBool fc_antialias;
@@ -686,6 +696,16 @@ QFontEngine *QFontconfigDatabase::fontEngine(const QByteArray &fontData, qreal p
     if (match) {
         engine->setDefaultHintStyle(defaultHintStyleFromMatch(hintingPreference, match));
 
+        FcBool fc_autohint;
+        if (FcPatternGetBool(match, FC_AUTOHINT,0, &fc_autohint) == FcResultMatch)
+            engine->forceAutoHint = fc_autohint;
+
+#if defined(FT_LCD_FILTER_H)
+        int lcdFilter;
+        if (FcPatternGetInteger(match, FC_LCD_FILTER, 0, &lcdFilter) == FcResultMatch)
+            engine->lcdFilterType = lcdFilter;
+#endif
+
         FcBool fc_antialias;
         if (FcPatternGetBool(match, FC_ANTIALIAS,0, &fc_antialias) != FcResultMatch)
             fc_antialias = true;
-- 
2.1.1

Places

File 0003-Support-autohint-and-lcdfilter-fontconfig-configurat.patch of Package libqt5-qtbase (Revision 4b7345a3b21df76dc28b3bba2c6fbfc0)

Places