[Libreoffice-commits] core.git: Branch 'feature/commonsallayout' - 165 commits - accessibility/inc accessibility/source animations/source avmedia/inc avmedia/source basctl/source basegfx/source basic/inc basic/qa basic/source binaryurp/source bin/gbuild-to-ide bridges/source canvas/source chart2/inc chart2/source codemaker/source comphelper/qa comphelper/source compilerplugins/clang configmgr/qa configmgr/source configure.ac connectivity/source cppcanvas/qa cppcanvas/source cppuhelper/qa cppuhelper/source cppu/qa cppu/source cui/source cui/uiconfig dbaccess/source desktop/inc desktop/qa desktop/source download.lst drawinglayer/source dtrans/source editeng/source embeddedobj/source eventattacher/source extensions/source external/firebird external/harfbuzz external/more_fonts extras/source filter/qa filter/source forms/source formula/source fpicker/source framework/inc framework/source helpcontent2 hwpfilter/source i18nlangtag/qa i18npool/inc i18npool/source icon-themes/breeze icon-themes/breeze_da rk icon-themes/galaxy icon-themes/sifr icon-themes/tango idlc/inc idl/inc include/avmedia include/basegfx include/basic include/canvas include/codemaker include/comphelper include/connectivity include/cppuhelper include/dbaccess include/drawinglayer include/editeng include/filter include/formula include/framework include/i18nutil include/jvmaccess include/LibreOfficeKit include/linguistic include/oox include/registry include/salhelper include/sax include/sfx2 include/sot include/svl include/svtools include/svx include/test include/toolkit include/tools include/ucbhelper include/unoidl include/unotest include/unotools include/vbahelper include/vcl include/xmloff io/qa io/source jvmfwk/inc jvmfwk/plugins jvmfwk/source l10ntools/inc l10ntools/source libreofficekit/source lingucomponent/source linguistic/inc linguistic/source lotuswordpro/source Makefile.in o3tl/qa odk/settings officecfg/registry oox/inc oox/source package/inc package/source pyuno/source registry/tools remotebridges/sou rce reportdesign/inc reportdesign/source Repository.mk rsc/inc rsc/source salhelper/source sal/qa sal/workben sax/qa sax/source scaddins/source sccomp/source sc/inc sc/Module_sc.mk sc/qa scripting/source sc/source sdext/source sd/inc sd/qa sd/source sd/uiconfig setup_native/source sfx2/inc sfx2/qa sfx2/source sfx2/uiconfig shell/source slideshow/source solenv/gbuild sot/source starmath/inc starmath/source stoc/source store/source svgio/inc svgio/source svl/qa svl/source svtools/inc svtools/source svx/inc svx/README svx/source svx/workben sw/inc sw/Library_sw.mk sw/qa sw/source sw/uiconfig sw/UIConfig_swriter.mk test/source testtools/Library_bridgetest-common.mk testtools/Library_bridgetest.mk testtools/Library_cppobj.mk testtools/Module_testtools.mk testtools/source testtools/StaticLibrary_bridgetest.mk toolkit/source ucbhelper/source ucb/source UnoControls/inc UnoControls/source unoidl/source unotest/source unotools/source unoxml/inc unoxml/source uui/source vbahelper/source vcl/ba ckendtest vcl/glyphy vcl/headless vcl/inc vcl/Library_vcl.mk vcl/opengl vcl/osx vcl/qa vcl/quartz vcl/README.vars vcl/source vcl/unx vcl/win vcl/workben writerfilter/qa writerfilter/source writerperfect/inc writerperfect/source xmlhelp/source xmloff/inc xmloff/source xmlscript/source xmlsecurity/inc xmlsecurity/source

Khaled Hosny khaledhosny at eglug.org
Wed Sep 14 17:02:55 UTC 2016


Rebased ref, commits from common ancestor:
commit 1a7c54d75046d75d09f94d9105941b5adad8a040
Author: Khaled Hosny <khaledhosny at eglug.org>
Date:   Sun Sep 11 10:25:46 2016 +0200

    Override GetCharWidths and ApplyDXArray in CSL
    
    A much simpler and saner implementation. This also unbreaks Awami
    Nastaliq.
    
    Break kashida justification, will need to rewrite that one as well.
    
    Change-Id: I843679e937f2881e77df61f5cbd9516b6df1b3b6

diff --git a/vcl/inc/CommonSalLayout.hxx b/vcl/inc/CommonSalLayout.hxx
index 83de5c1..179eee88 100644
--- a/vcl/inc/CommonSalLayout.hxx
+++ b/vcl/inc/CommonSalLayout.hxx
@@ -65,4 +65,7 @@ public:
     virtual bool            LayoutText(ImplLayoutArgs&) override;
     virtual void            DrawText( SalGraphics& ) const override;
     std::shared_ptr<vcl::TextLayoutCache> CreateTextLayoutCache(OUString const&) const override;
+
+    virtual bool            GetCharWidths(DeviceCoordinate* pCharWidths) const;
+    virtual void            ApplyDXArray(ImplLayoutArgs&);
 };
diff --git a/vcl/inc/sallayout.hxx b/vcl/inc/sallayout.hxx
index cfb2930..1050943 100644
--- a/vcl/inc/sallayout.hxx
+++ b/vcl/inc/sallayout.hxx
@@ -326,7 +326,7 @@ public:
     void            AppendGlyph( const GlyphItem& );
     void            Reserve(int size) { m_GlyphItems.reserve(size + 1); }
     virtual void    AdjustLayout( ImplLayoutArgs& ) override;
-    void    ApplyDXArray( ImplLayoutArgs& );
+    virtual void    ApplyDXArray( ImplLayoutArgs& );
     void    Justify( DeviceCoordinate nNewWidth );
     void            KashidaJustify( long nIndex, int nWidth );
     void            ApplyAsianKerning(const OUString& rStr);
@@ -352,7 +352,7 @@ protected:
     virtual void    DropGlyph( int nStart ) override;
     virtual void    Simplify( bool bIsBase ) override;
 
-    bool            GetCharWidths( DeviceCoordinate* pCharWidths ) const;
+    virtual bool    GetCharWidths( DeviceCoordinate* pCharWidths ) const;
 
     std::vector<GlyphItem>     m_GlyphItems;
 
diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
index 509086d..f526f28 100644
--- a/vcl/source/gdi/CommonSalLayout.cxx
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -486,3 +486,53 @@ bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
 
     return true;
 }
+
+bool CommonSalLayout::GetCharWidths(DeviceCoordinate* pCharWidths) const
+{
+    int nCharCount = mnEndCharPos - mnMinCharPos;
+
+    for (int i = 0; i < nCharCount; ++i)
+        pCharWidths[i] = 0;
+
+    for (auto const& aGlyphItem : m_GlyphItems)
+        pCharWidths[aGlyphItem.mnCharPos - mnMinCharPos] += aGlyphItem.mnNewWidth;
+
+    return true;
+}
+
+void CommonSalLayout::ApplyDXArray(ImplLayoutArgs& rArgs)
+{
+    int nCharCount = mnEndCharPos - mnMinCharPos;
+    long pOldCharWidths[nCharCount];
+    long pNewCharWidths[nCharCount];
+
+    GetCharWidths(pOldCharWidths);
+
+    for (int i = 0; i < nCharCount; ++i)
+    {
+        if (i == 0)
+          pNewCharWidths[i] = rArgs.mpDXArray[i];
+        else
+          pNewCharWidths[i] = rArgs.mpDXArray[i] - rArgs.mpDXArray[i - 1];
+    }
+
+    long nDelta = 0;
+    size_t i = 0;
+    while (i < m_GlyphItems.size())
+    {
+        int nCharPos = m_GlyphItems[i].mnCharPos - mnMinCharPos;
+        long nDiff = pNewCharWidths[nCharPos] - pOldCharWidths[nCharPos];
+
+        m_GlyphItems[i].maLinearPos.X() += nDelta;
+        size_t j = i;
+        while (++j < m_GlyphItems.size())
+        {
+            if (m_GlyphItems[j].mnCharPos != m_GlyphItems[i].mnCharPos)
+              break;
+            m_GlyphItems[j].maLinearPos.X() += nDelta;
+        }
+
+        nDelta += nDiff;
+        i = j;
+    }
+}
commit 216b57abd086ed6c28c5836306d4f40791a8bb99
Author: Khaled Hosny <khaledhosny at eglug.org>
Date:   Wed Sep 7 23:26:14 2016 +0200

    Don’t check glyph class unnecessarily
    
    Don’t call hb_ot_layout_get_glyph_class() unless the glyph advance width
    is zero, as we really do not use its result otherwise.
    
    Change-Id: Id02238abef91b9343931f1886d54d966d7157f25

diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
index 88afecc..509086d 100644
--- a/vcl/source/gdi/CommonSalLayout.cxx
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -439,9 +439,8 @@ bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
                 if (hb_ot_layout_has_glyph_classes(pHbFace))
                 {
                     // the font has GDEF table
-                    bool bMark = hb_ot_layout_get_glyph_class(pHbFace, nGlyphIndex) == HB_OT_LAYOUT_GLYPH_CLASS_MARK;
-                    if (bMark && pHbPositions[i].x_advance == 0)
-                        bDiacritic = true;
+                    if (pHbPositions[i].x_advance == 0)
+                        bDiacritic = hb_ot_layout_get_glyph_class(pHbFace, nGlyphIndex) == HB_OT_LAYOUT_GLYPH_CLASS_MARK;
                 }
                 else
                 {
commit 56d26cba9ec38cbcef703a4b47067944b8a252b0
Author: Khaled Hosny <khaledhosny at eglug.org>
Date:   Wed Sep 7 19:40:11 2016 +0200

    Cache HarfBuzz font
    
    We now create it only once per physical font, saves us few percents from
    the all over time spent on layout.
    
    Change-Id: I8de582cb20a168c93d72921e539c2477fa97fb54

diff --git a/vcl/inc/CommonSalLayout.hxx b/vcl/inc/CommonSalLayout.hxx
index da75f0f..83de5c1 100644
--- a/vcl/inc/CommonSalLayout.hxx
+++ b/vcl/inc/CommonSalLayout.hxx
@@ -35,7 +35,7 @@
 
 class CommonSalLayout : public GenericSalLayout
 {
-    hb_face_t* mpHbFace;
+    hb_font_t* mpHbFont;
     FontSelectPattern maFontSelData;
     css::uno::Reference<css::i18n::XBreakIterator> mxBreak;
 #ifdef _WIN32
@@ -48,7 +48,6 @@ class CommonSalLayout : public GenericSalLayout
     ServerFont& mrServerFont;
 #endif
 
-    hb_font_t*              GetHbFont();
 public:
 #if defined(_WIN32)
     explicit                CommonSalLayout(WinSalGraphics*, WinFontInstance&, const WinFontFace&);
diff --git a/vcl/inc/quartz/salgdi.h b/vcl/inc/quartz/salgdi.h
index bc1a4e2..5313903 100644
--- a/vcl/inc/quartz/salgdi.h
+++ b/vcl/inc/quartz/salgdi.h
@@ -99,8 +99,8 @@ public:
     void       GetFontMetric( ImplFontMetricDataRef& ) const;
     bool       GetGlyphBoundRect( sal_GlyphId, Rectangle& ) const;
     bool       GetGlyphOutline( sal_GlyphId, basegfx::B2DPolyPolygon& ) const;
-    hb_face_t* GetHbFace() const { return mpHbFace; }
-    void       SetHbFace(hb_face_t* pHbFace) const { mpHbFace = pHbFace; }
+    hb_font_t* GetHbFont() const { return mpHbFont; }
+    void       SetHbFont(hb_font_t* pHbFont) const { mpHbFont = pHbFont; }
 
     const CoreTextFontFace*  mpFontData;
     /// <1.0: font is squeezed, >1.0 font is stretched, else 1.0
@@ -112,7 +112,7 @@ public:
 private:
     /// CoreText text style object
     CFMutableDictionaryRef  mpStyleDict;
-    mutable hb_face_t*      mpHbFace;
+    mutable hb_font_t*      mpHbFont;
 
     friend class CTLayout;
     friend class AquaSalGraphics;
diff --git a/vcl/inc/unx/glyphcache.hxx b/vcl/inc/unx/glyphcache.hxx
index 24c52cf..d625204 100644
--- a/vcl/inc/unx/glyphcache.hxx
+++ b/vcl/inc/unx/glyphcache.hxx
@@ -182,8 +182,8 @@ public:
     sal_GlyphId             FixupGlyphIndex( sal_GlyphId aGlyphId, sal_UCS4 ) const;
     bool                    GetGlyphOutline( sal_GlyphId aGlyphId, basegfx::B2DPolyPolygon& ) const;
     bool                    GetAntialiasAdvice() const;
-    hb_face_t*              GetHbFace() { return mpHbFace; }
-    void                    SetHbFace( hb_face_t* pHbFace ) { mpHbFace=pHbFace; }
+    hb_font_t*              GetHbFont() { return mpHbFont; }
+    void                    SetHbFont( hb_font_t* pHbFont ) { mpHbFont = pHbFont; }
 
 private:
     friend class GlyphCache;
@@ -243,7 +243,7 @@ private:
     GlyphSubstitution       maGlyphSubstitution;
 
     ServerFontLayoutEngine* mpLayoutEngine;
-    hb_face_t*              mpHbFace;
+    hb_font_t*              mpHbFont;
 };
 
 // a class for cache entries for physical font instances that are based on serverfonts
diff --git a/vcl/inc/win/salgdi.h b/vcl/inc/win/salgdi.h
index e1d64c5..cdb0967 100644
--- a/vcl/inc/win/salgdi.h
+++ b/vcl/inc/win/salgdi.h
@@ -142,12 +142,12 @@ private:
 
     mutable std::unordered_set<sal_UCS4>      maGsubTable;
     mutable bool            mbGsubRead;
-    mutable hb_face_t*      mpHbFace;
+    mutable hb_font_t*      mpHbFont;
 public:
     bool                    HasGSUBstitutions( HDC ) const;
     bool                    IsGSUBstituted( sal_UCS4 ) const;
-    hb_face_t*              GetHbFace() const { return mpHbFace; }
-    void                    SetHbFace( hb_face_t* pHbFace ) const { mpHbFace = pHbFace; }
+    hb_font_t*              GetHbFont() const { return mpHbFont; }
+    void                    SetHbFont( hb_font_t* pHbFont ) const { mpHbFont = pHbFont; }
 };
 
 /** Class that creates (and destroys) a compatible Device Context.
diff --git a/vcl/quartz/ctfonts.cxx b/vcl/quartz/ctfonts.cxx
index f183c10..ac17abc 100644
--- a/vcl/quartz/ctfonts.cxx
+++ b/vcl/quartz/ctfonts.cxx
@@ -50,7 +50,7 @@ CoreTextStyle::CoreTextStyle( const FontSelectPattern& rFSD )
     , mfFontRotation( 0.0 )
     , maFontSelData( rFSD )
     , mpStyleDict( nullptr )
-    , mpHbFace( nullptr )
+    , mpHbFont( nullptr )
 {
     const FontSelectPattern* const pReqFont = &rFSD;
 
@@ -117,8 +117,8 @@ CoreTextStyle::~CoreTextStyle()
 {
     if( mpStyleDict )
         CFRelease( mpStyleDict );
-    if( mpHbFace )
-        hb_face_destroy( mpHbFace );
+    if( mpHbFont )
+        hb_font_destroy( mpHbFont );
 }
 
 void CoreTextStyle::GetFontMetric( ImplFontMetricDataRef& rxFontMetric ) const
diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
index afdbdf8..88afecc 100644
--- a/vcl/source/gdi/CommonSalLayout.cxx
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -90,6 +90,32 @@ static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pU
     return pBlob;
 }
 
+static hb_font_t* createHbFont(hb_face_t* pHbFace)
+{
+    hb_font_t* pHbFont = hb_font_create(pHbFace);
+    hb_ot_font_set_funcs(pHbFont);
+
+    return pHbFont;
+}
+
+static void scaleHbFont(hb_font_t* pHbFont, FontSelectPattern aFontSelData)
+{
+    uint64_t nXScale = aFontSelData.mnWidth << 6;
+    uint64_t nYScale = aFontSelData.mnHeight << 6;
+
+#if defined(_WIN32)
+    // HACK to get stretched/shrunken text. TODO: Get rid of HACK
+    if (nXScale)
+        nXScale = double(nXScale) * 1.812;
+#endif
+
+    if (!nXScale)
+      nXScale = nYScale;
+
+    hb_font_set_ppem(pHbFont, nXScale, nYScale);
+    hb_font_set_scale(pHbFont, nXScale, nYScale);
+}
+
 static hb_unicode_funcs_t* getUnicodeFuncs()
 {
     static hb_unicode_funcs_t* ufuncs = hb_unicode_funcs_create(hb_icu_get_unicode_funcs());
@@ -103,16 +129,15 @@ static hb_unicode_funcs_t* getUnicodeFuncs()
 CommonSalLayout::CommonSalLayout(WinSalGraphics* WSL, WinFontInstance& rWinFontInstance, const WinFontFace& rWinFontFace)
 :   mhFont((HFONT)GetCurrentObject(WSL->getHDC(), OBJ_FONT)),
     mhDC(WSL->getHDC()),
-    mpHbFace(nullptr),
     maFontSelData(rWinFontInstance.maFontSelData),
     mpD2DRenderer(nullptr)
 {
-    mpHbFace = rWinFontFace.GetHbFace();
-    if(!mpHbFace)
+    mpHbFont = rWinFontFace.GetHbFont();
+    if (!mpHbFont)
     {
         mpD2DRenderer = dynamic_cast<D2DWriteTextOutRenderer*>(&TextOutRenderer::get());
         WinSalGraphicsWithIDFace* pWSLWithIDFace = new WinSalGraphicsWithIDFace(WSL, mpD2DRenderer->GetDWriteFontFace(mhDC));
-        mpHbFace= hb_face_create_for_tables( getFontTable, pWSLWithIDFace,
+        hb_face_t* pHbFace= hb_face_create_for_tables( getFontTable, pWSLWithIDFace,
                   [](void* pUserData)
                   {
                       WinSalGraphicsWithIDFace* pUData = static_cast<WinSalGraphicsWithIDFace*>( pUserData );
@@ -121,8 +146,14 @@ CommonSalLayout::CommonSalLayout(WinSalGraphics* WSL, WinFontInstance& rWinFontI
                       delete pUData;
                   }
                  );
-        rWinFontFace.SetHbFace(mpHbFace);
+
+        mpHbFont = createHbFont(pHbFace);
+        rWinFontFace.SetHbFont(mpHbFont);
+
+        hb_face_destroy(pHbFace);
     }
+
+    scaleHbFont(mpHbFont, maFontSelData);
 }
 
 void CommonSalLayout::InitFont() const
@@ -132,54 +163,49 @@ void CommonSalLayout::InitFont() const
 
 #elif defined(MACOSX) || defined(IOS)
 CommonSalLayout::CommonSalLayout(const CoreTextStyle& rCoreTextStyle)
-:   mpHbFace(nullptr),
-    maFontSelData(rCoreTextStyle.maFontSelData),
+:   maFontSelData(rCoreTextStyle.maFontSelData),
     mrCoreTextStyle(rCoreTextStyle)
 {
-    mpHbFace = rCoreTextStyle.GetHbFace();
-    if(!mpHbFace)
+    mpHbFont = rCoreTextStyle.GetHbFont();
+    if (!mpHbFont)
     {
+        hb_face_t* pHbFace;
         CTFontRef pCTFont = static_cast<CTFontRef>(CFDictionaryGetValue(rCoreTextStyle.GetStyleDict(), kCTFontAttributeName));
         CGFontRef pCGFont = CTFontCopyGraphicsFont(pCTFont, NULL);
         if (pCGFont)
-            mpHbFace = hb_coretext_face_create(pCGFont);
+            pHbFace = hb_coretext_face_create(pCGFont);
         else
-            mpHbFace = hb_face_create_for_tables(getFontTable, const_cast<CoreTextFontFace*>(rCoreTextStyle.mpFontData), nullptr);
+            pHbFace = hb_face_create_for_tables(getFontTable, const_cast<CoreTextFontFace*>(rCoreTextStyle.mpFontData), nullptr);
         CGFontRelease(pCGFont);
-        rCoreTextStyle.SetHbFace(mpHbFace);
+
+        mpHbFont = createHbFont(pHbFace);
+        rCoreTextStyle.SetHbFont(mpHbFont);
+
+        hb_face_destroy(pHbFace);
     }
+
+    scaleHbFont(mpHbFont, maFontSelData);
 }
 
 #else
 CommonSalLayout::CommonSalLayout(ServerFont& rServerFont)
-:   mpHbFace(nullptr),
-    maFontSelData(rServerFont.GetFontSelData()),
+:   maFontSelData(rServerFont.GetFontSelData()),
     mrServerFont(rServerFont)
 {
-    mpHbFace = rServerFont.GetHbFace();
-    if(!mpHbFace)
+    mpHbFont = rServerFont.GetHbFont();
+    if (!mpHbFont)
     {
-        mpHbFace = hb_face_create_for_tables(getFontTable, &rServerFont, nullptr);
-        mrServerFont.SetHbFace(mpHbFace);
-    }
-}
-#endif
+        hb_face_t* pHbFace = hb_face_create_for_tables(getFontTable, &rServerFont, nullptr);
 
-hb_font_t* CommonSalLayout::GetHbFont()
-{
-    // HACK. TODO: Get rid of HACK
-#if defined(_WIN32)
-    if(maFontSelData.mnWidth)
-        maFontSelData.mnWidth = (double)maFontSelData.mnWidth*1.812;
-#endif
+        mpHbFont = createHbFont(pHbFace);
+        mrServerFont.SetHbFont(mpHbFont);
 
-    hb_font_t* pHbFont = hb_font_create(mpHbFace);
-    hb_font_set_ppem(pHbFont, maFontSelData.mnWidth? maFontSelData.mnWidth:maFontSelData.mnHeight , maFontSelData.mnHeight);
-    hb_font_set_scale(pHbFont, (uint64_t)(maFontSelData.mnWidth? maFontSelData.mnWidth:maFontSelData.mnHeight) << 6
-                             , (uint64_t)maFontSelData.mnHeight << 6);
-    hb_ot_font_set_funcs(pHbFont);
-    return pHbFont;
+        hb_face_destroy(pHbFace);
+    }
+
+    scaleHbFont(mpHbFont, maFontSelData);
 }
+#endif
 
 struct HbScriptRun
 {
@@ -267,18 +293,16 @@ void CommonSalLayout::AdjustLayout(ImplLayoutArgs& rArgs)
 
     if((rArgs.mnFlags & SalLayoutFlags::KashidaJustification) && rArgs.mpDXArray)
     {
-        hb_font_t* pHbFont = GetHbFont();
         hb_codepoint_t nKashidaCodePoint = 0x0640;
         hb_codepoint_t nKashidaGlyphIndex;
 
-        if(hb_font_get_glyph(pHbFont, nKashidaCodePoint, 0, &nKashidaGlyphIndex))
+        if(hb_font_get_glyph(mpHbFont, nKashidaCodePoint, 0, &nKashidaGlyphIndex))
         {
             if(nKashidaGlyphIndex)
             {
-                KashidaJustify(nKashidaGlyphIndex, hb_font_get_glyph_h_advance(pHbFont, nKashidaGlyphIndex) >> 6);
+                KashidaJustify(nKashidaGlyphIndex, hb_font_get_glyph_h_advance(mpHbFont, nKashidaGlyphIndex) >> 6);
             }
         }
-        hb_font_destroy(pHbFont);
     }
 }
 
@@ -290,7 +314,6 @@ void CommonSalLayout::DrawText( SalGraphics& rSalGraphics ) const
 
 bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
 {
-    hb_font_t* pHbFont = GetHbFont();
     hb_script_t aHbScript = HB_SCRIPT_INVALID;
 
     int nGlyphCapacity = 2 * (rArgs.mnEndCharPos - rArgs.mnMinCharPos);
@@ -379,7 +402,7 @@ bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
 #if HB_VERSION_ATLEAST(0, 9, 42)
             hb_buffer_set_cluster_level(pHbBuffer, HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS);
 #endif
-            hb_shape(pHbFont, pHbBuffer, nullptr, 0);
+            hb_shape(mpHbFont, pHbBuffer, nullptr, 0);
 
             int nRunGlyphCount = hb_buffer_get_length(pHbBuffer);
             hb_glyph_info_t *pHbGlyphInfos = hb_buffer_get_glyph_infos(pHbBuffer, nullptr);
@@ -412,10 +435,11 @@ bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
                     nGlyphFlags |= GlyphItem::IS_IN_CLUSTER;
 
                 bool bDiacritic = false;
-                if (hb_ot_layout_has_glyph_classes(mpHbFace))
+                hb_face_t* pHbFace = hb_font_get_face(mpHbFont);
+                if (hb_ot_layout_has_glyph_classes(pHbFace))
                 {
                     // the font has GDEF table
-                    bool bMark = hb_ot_layout_get_glyph_class(mpHbFace, nGlyphIndex) == HB_OT_LAYOUT_GLYPH_CLASS_MARK;
+                    bool bMark = hb_ot_layout_get_glyph_class(pHbFace, nGlyphIndex) == HB_OT_LAYOUT_GLYPH_CLASS_MARK;
                     if (bMark && pHbPositions[i].x_advance == 0)
                         bDiacritic = true;
                 }
@@ -451,8 +475,6 @@ bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
         }
     }
 
-    hb_font_destroy(pHbFont);
-
     // sort glyphs in visual order
     // and then in logical order (e.g. diacritics after cluster start)
     // XXX: why?
diff --git a/vcl/unx/generic/glyphs/freetype_glyphcache.cxx b/vcl/unx/generic/glyphs/freetype_glyphcache.cxx
index bed87d5..b4bf548 100644
--- a/vcl/unx/generic/glyphs/freetype_glyphcache.cxx
+++ b/vcl/unx/generic/glyphs/freetype_glyphcache.cxx
@@ -462,7 +462,7 @@ ServerFont::ServerFont( const FontSelectPattern& rFSD, FreetypeFontInfo* pFI )
     mbArtBold( false ),
     mbUseGamma( false ),
     mpLayoutEngine( nullptr ),
-    mpHbFace( nullptr )
+    mpHbFont( nullptr )
 {
     // TODO: move update of mpFontInstance into FontEntry class when
     // it becomes responsible for the ServerFont instantiation
@@ -611,8 +611,8 @@ ServerFont::~ServerFont()
 
     mpFontInfo->ReleaseFaceFT();
 
-    if( mpHbFace )
-        hb_face_destroy( mpHbFace );
+    if( mpHbFont )
+        hb_font_destroy( mpHbFont );
 
     ReleaseFromGarbageCollect();
 }
diff --git a/vcl/win/gdi/salfont.cxx b/vcl/win/gdi/salfont.cxx
index 1623f98..7e629e2 100644
--- a/vcl/win/gdi/salfont.cxx
+++ b/vcl/win/gdi/salfont.cxx
@@ -1009,7 +1009,7 @@ WinFontFace::WinFontFace( const FontAttributes& rDFS,
     mbAliasSymbolsHigh( false ),
     mbAliasSymbolsLow( false ),
     mbGsubRead( false ),
-    mpHbFace( nullptr )
+    mpHbFont( nullptr )
 {
     SetBitmapSize( 0, nHeight );
 
@@ -1051,8 +1051,8 @@ WinFontFace::~WinFontFace()
 #endif // ENABLE_GRAPHITE
     delete mpEncodingVector;
 
-    if( mpHbFace )
-        hb_face_destroy( mpHbFace );
+    if( mpHbFont )
+        hb_font_destroy( mpHbFont );
 }
 
 sal_IntPtr WinFontFace::GetFontId() const
diff --git a/vcl/win/gdi/winlayout.cxx b/vcl/win/gdi/winlayout.cxx
index 4aafa44..9ab4dbe 100644
--- a/vcl/win/gdi/winlayout.cxx
+++ b/vcl/win/gdi/winlayout.cxx
@@ -4065,8 +4065,8 @@ PhysicalFontFace* WinFontFace::Clone() const
     if ( mpGraphiteData )
         mpGraphiteData->AddReference();
 #endif
-    if( mpHbFace )
-        hb_face_reference( mpHbFace );
+    if( mpHbFont )
+        hb_font_reference( mpHbFont );
 
     PhysicalFontFace* pClone = new WinFontFace( *this );
     return pClone;
commit 7a082098bc20b02e68ed0cfc6237f2b844f4b05d
Author: Akash Jain <akash96j at gmail.com>
Date:   Wed Aug 17 21:31:22 2016 +0530

    GSoC: Speed up CommonSalLayout by caching hb_face
    
    Cache hb_face so it is not created again and again.
    Switch from GDI to DirectWrite on Windows to obtain SFNT table data.
    
    Change-Id: I9c532cd72e1f6b57313f3b7d42a6b9b0633eb0ef

diff --git a/vcl/inc/CommonSalLayout.hxx b/vcl/inc/CommonSalLayout.hxx
index ba93855..da75f0f 100644
--- a/vcl/inc/CommonSalLayout.hxx
+++ b/vcl/inc/CommonSalLayout.hxx
@@ -41,6 +41,7 @@ class CommonSalLayout : public GenericSalLayout
 #ifdef _WIN32
     HDC   mhDC;
     HFONT mhFont;
+    D2DWriteTextOutRenderer* mpD2DRenderer;
 #elif defined(MACOSX) || defined(IOS)
     const CoreTextStyle& mrCoreTextStyle;
 #else
@@ -50,7 +51,7 @@ class CommonSalLayout : public GenericSalLayout
     hb_font_t*              GetHbFont();
 public:
 #if defined(_WIN32)
-    explicit                CommonSalLayout(HDC, WinFontInstance&);
+    explicit                CommonSalLayout(WinSalGraphics*, WinFontInstance&, const WinFontFace&);
     virtual void            InitFont() const override;
 #elif defined(MACOSX) || defined(IOS)
     explicit                CommonSalLayout(const CoreTextStyle&);
@@ -60,7 +61,6 @@ public:
     const ServerFont&       getFontData() const { return mrServerFont; };
 #endif
 
-    virtual                 ~CommonSalLayout();
     void                    SetNeedFallback(ImplLayoutArgs&, sal_Int32, bool);
     void                    AdjustLayout(ImplLayoutArgs&) override;
     virtual bool            LayoutText(ImplLayoutArgs&) override;
diff --git a/vcl/inc/quartz/salgdi.h b/vcl/inc/quartz/salgdi.h
index f283ea9..bc1a4e2 100644
--- a/vcl/inc/quartz/salgdi.h
+++ b/vcl/inc/quartz/salgdi.h
@@ -45,6 +45,7 @@
 
 #include "quartz/salgdicommon.hxx"
 #include <unordered_map>
+#include <hb-ot.h>
 
 class AquaSalFrame;
 class FontAttributes;
@@ -98,6 +99,8 @@ public:
     void       GetFontMetric( ImplFontMetricDataRef& ) const;
     bool       GetGlyphBoundRect( sal_GlyphId, Rectangle& ) const;
     bool       GetGlyphOutline( sal_GlyphId, basegfx::B2DPolyPolygon& ) const;
+    hb_face_t* GetHbFace() const { return mpHbFace; }
+    void       SetHbFace(hb_face_t* pHbFace) const { mpHbFace = pHbFace; }
 
     const CoreTextFontFace*  mpFontData;
     /// <1.0: font is squeezed, >1.0 font is stretched, else 1.0
@@ -109,6 +112,7 @@ public:
 private:
     /// CoreText text style object
     CFMutableDictionaryRef  mpStyleDict;
+    mutable hb_face_t*      mpHbFace;
 
     friend class CTLayout;
     friend class AquaSalGraphics;
diff --git a/vcl/inc/unx/glyphcache.hxx b/vcl/inc/unx/glyphcache.hxx
index 2f038ee..24c52cf 100644
--- a/vcl/inc/unx/glyphcache.hxx
+++ b/vcl/inc/unx/glyphcache.hxx
@@ -35,6 +35,7 @@
 #include <sallayout.hxx>
 #include "fontattributes.hxx"
 #include "impfontmetricdata.hxx"
+#include "hb-ot.h"
 
 #include <unordered_map>
 
@@ -181,6 +182,8 @@ public:
     sal_GlyphId             FixupGlyphIndex( sal_GlyphId aGlyphId, sal_UCS4 ) const;
     bool                    GetGlyphOutline( sal_GlyphId aGlyphId, basegfx::B2DPolyPolygon& ) const;
     bool                    GetAntialiasAdvice() const;
+    hb_face_t*              GetHbFace() { return mpHbFace; }
+    void                    SetHbFace( hb_face_t* pHbFace ) { mpHbFace=pHbFace; }
 
 private:
     friend class GlyphCache;
@@ -240,6 +243,7 @@ private:
     GlyphSubstitution       maGlyphSubstitution;
 
     ServerFontLayoutEngine* mpLayoutEngine;
+    hb_face_t*              mpHbFace;
 };
 
 // a class for cache entries for physical font instances that are based on serverfonts
diff --git a/vcl/inc/win/salgdi.h b/vcl/inc/win/salgdi.h
index 2defd7f..e1d64c5 100644
--- a/vcl/inc/win/salgdi.h
+++ b/vcl/inc/win/salgdi.h
@@ -44,6 +44,9 @@
 #  include "postwin.h"
 #endif
 
+#include <hb-ot.h>
+#include <dwrite.h>
+
 class FontSelectPattern;
 class WinFontInstance;
 class ImplFontAttrCache;
@@ -139,10 +142,12 @@ private:
 
     mutable std::unordered_set<sal_UCS4>      maGsubTable;
     mutable bool            mbGsubRead;
+    mutable hb_face_t*      mpHbFace;
 public:
     bool                    HasGSUBstitutions( HDC ) const;
     bool                    IsGSUBstituted( sal_UCS4 ) const;
-    static int              GetTable( const char pTagName[5], const unsigned char*&, HDC );
+    hb_face_t*              GetHbFace() const { return mpHbFace; }
+    void                    SetHbFace( hb_face_t* pHbFace ) const { mpHbFace = pHbFace; }
 };
 
 /** Class that creates (and destroys) a compatible Device Context.
@@ -354,6 +359,7 @@ private:
     sal_uLong               GetKernPairs();
 
 public:
+    sal_uLong               GetTable( const char pTagName[5], const unsigned char*&, void*&, IDWriteFontFace*& );
     // public SalGraphics methods, the interface to the independent vcl part
 
     // get device resolution
diff --git a/vcl/quartz/ctfonts.cxx b/vcl/quartz/ctfonts.cxx
index 28be80b..f183c10 100644
--- a/vcl/quartz/ctfonts.cxx
+++ b/vcl/quartz/ctfonts.cxx
@@ -50,6 +50,7 @@ CoreTextStyle::CoreTextStyle( const FontSelectPattern& rFSD )
     , mfFontRotation( 0.0 )
     , maFontSelData( rFSD )
     , mpStyleDict( nullptr )
+    , mpHbFace( nullptr )
 {
     const FontSelectPattern* const pReqFont = &rFSD;
 
@@ -116,6 +117,8 @@ CoreTextStyle::~CoreTextStyle()
 {
     if( mpStyleDict )
         CFRelease( mpStyleDict );
+    if( mpHbFace )
+        hb_face_destroy( mpHbFace );
 }
 
 void CoreTextStyle::GetFontMetric( ImplFontMetricDataRef& rxFontMetric ) const
diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
index eb5b6a2..afdbdf8 100644
--- a/vcl/source/gdi/CommonSalLayout.cxx
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -26,6 +26,21 @@
 #include <limits>
 #include <salgdi.hxx>
 
+#if defined(_WIN32)
+struct WinSalGraphicsWithIDFace
+{
+    WinSalGraphics*     mpWSL;
+    IDWriteFontFace*    mpIDFace;
+    void*               mpTableContext;
+
+    WinSalGraphicsWithIDFace( WinSalGraphics* pWSL, IDWriteFontFace* pIDFace )
+    : mpWSL( pWSL ),
+      mpIDFace( pIDFace ),
+      mpTableContext( nullptr )
+    {}
+};
+#endif
+
 static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pUserData)
 {
     char pTagName[5];
@@ -38,8 +53,8 @@ static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pU
     sal_uLong nLength=0;
 #if defined(_WIN32)
     const unsigned char* pBuffer = nullptr;
-    HDC* phDC = static_cast<HDC*>(pUserData);
-    nLength = WinFontFace::GetTable(pTagName, pBuffer, *phDC);
+    WinSalGraphicsWithIDFace* pWSLWithIDFace = static_cast<WinSalGraphicsWithIDFace*>(pUserData);
+    nLength = (pWSLWithIDFace->mpWSL)->GetTable(pTagName, pBuffer, pWSLWithIDFace->mpTableContext, pWSLWithIDFace->mpIDFace);
 #elif defined(MACOSX) || defined(IOS)
     unsigned char* pBuffer = nullptr;
     CoreTextFontFace* pFont = static_cast<CoreTextFontFace*>(pUserData);
@@ -57,7 +72,15 @@ static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pU
 
     hb_blob_t* pBlob = nullptr;
     if (pBuffer != nullptr)
-#if defined(_WIN32) || defined(MACOSX) || defined(IOS)
+#if defined(_WIN32)
+        pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY, pWSLWithIDFace,
+                               [](void* pUserData)
+                               {
+                                   WinSalGraphicsWithIDFace* pUData = static_cast<WinSalGraphicsWithIDFace*>(pUserData);
+                                   pUData->mpIDFace->ReleaseFontTable(pUData->mpTableContext);
+                               }
+                              );
+#elif defined(MACOSX) || defined(IOS)
         pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY,
                                const_cast<unsigned char*>(pBuffer), [](void* data){ delete[] reinterpret_cast<unsigned char*>(data); } );
 #else
@@ -77,13 +100,29 @@ static hb_unicode_funcs_t* getUnicodeFuncs()
 }
 
 #if defined(_WIN32)
-CommonSalLayout::CommonSalLayout(HDC hDC, WinFontInstance& rWinFontInstance)
-:   mhDC(hDC),
-    mhFont((HFONT)GetCurrentObject(hDC, OBJ_FONT)),
+CommonSalLayout::CommonSalLayout(WinSalGraphics* WSL, WinFontInstance& rWinFontInstance, const WinFontFace& rWinFontFace)
+:   mhFont((HFONT)GetCurrentObject(WSL->getHDC(), OBJ_FONT)),
+    mhDC(WSL->getHDC()),
     mpHbFace(nullptr),
-    maFontSelData(rWinFontInstance.maFontSelData)
+    maFontSelData(rWinFontInstance.maFontSelData),
+    mpD2DRenderer(nullptr)
 {
-    mpHbFace = hb_face_create_for_tables(getFontTable, &hDC, nullptr);
+    mpHbFace = rWinFontFace.GetHbFace();
+    if(!mpHbFace)
+    {
+        mpD2DRenderer = dynamic_cast<D2DWriteTextOutRenderer*>(&TextOutRenderer::get());
+        WinSalGraphicsWithIDFace* pWSLWithIDFace = new WinSalGraphicsWithIDFace(WSL, mpD2DRenderer->GetDWriteFontFace(mhDC));
+        mpHbFace= hb_face_create_for_tables( getFontTable, pWSLWithIDFace,
+                  [](void* pUserData)
+                  {
+                      WinSalGraphicsWithIDFace* pUData = static_cast<WinSalGraphicsWithIDFace*>( pUserData );
+                      if(pUData->mpIDFace)
+                          pUData->mpIDFace->Release();
+                      delete pUData;
+                  }
+                 );
+        rWinFontFace.SetHbFace(mpHbFace);
+    }
 }
 
 void CommonSalLayout::InitFont() const
@@ -97,13 +136,18 @@ CommonSalLayout::CommonSalLayout(const CoreTextStyle& rCoreTextStyle)
     maFontSelData(rCoreTextStyle.maFontSelData),
     mrCoreTextStyle(rCoreTextStyle)
 {
-    CTFontRef pCTFont = static_cast<CTFontRef>(CFDictionaryGetValue(rCoreTextStyle.GetStyleDict(), kCTFontAttributeName));
-    CGFontRef pCGFont = CTFontCopyGraphicsFont(pCTFont, NULL);
-    if (pCGFont)
-        mpHbFace = hb_coretext_face_create(pCGFont);
-    else
-        mpHbFace = hb_face_create_for_tables(getFontTable, const_cast<CoreTextFontFace*>(rCoreTextStyle.mpFontData), nullptr);
-    CGFontRelease(pCGFont);
+    mpHbFace = rCoreTextStyle.GetHbFace();
+    if(!mpHbFace)
+    {
+        CTFontRef pCTFont = static_cast<CTFontRef>(CFDictionaryGetValue(rCoreTextStyle.GetStyleDict(), kCTFontAttributeName));
+        CGFontRef pCGFont = CTFontCopyGraphicsFont(pCTFont, NULL);
+        if (pCGFont)
+            mpHbFace = hb_coretext_face_create(pCGFont);
+        else
+            mpHbFace = hb_face_create_for_tables(getFontTable, const_cast<CoreTextFontFace*>(rCoreTextStyle.mpFontData), nullptr);
+        CGFontRelease(pCGFont);
+        rCoreTextStyle.SetHbFace(mpHbFace);
+    }
 }
 
 #else
@@ -112,15 +156,15 @@ CommonSalLayout::CommonSalLayout(ServerFont& rServerFont)
     maFontSelData(rServerFont.GetFontSelData()),
     mrServerFont(rServerFont)
 {
-    mpHbFace = hb_face_create_for_tables(getFontTable, &rServerFont, nullptr);
+    mpHbFace = rServerFont.GetHbFace();
+    if(!mpHbFace)
+    {
+        mpHbFace = hb_face_create_for_tables(getFontTable, &rServerFont, nullptr);
+        mrServerFont.SetHbFace(mpHbFace);
+    }
 }
 #endif
 
-CommonSalLayout::~CommonSalLayout()
-{
-    hb_face_destroy(mpHbFace);
-}
-
 hb_font_t* CommonSalLayout::GetHbFont()
 {
     // HACK. TODO: Get rid of HACK
diff --git a/vcl/unx/generic/glyphs/freetype_glyphcache.cxx b/vcl/unx/generic/glyphs/freetype_glyphcache.cxx
index c7c59bb..bed87d5 100644
--- a/vcl/unx/generic/glyphs/freetype_glyphcache.cxx
+++ b/vcl/unx/generic/glyphs/freetype_glyphcache.cxx
@@ -461,7 +461,8 @@ ServerFont::ServerFont( const FontSelectPattern& rFSD, FreetypeFontInfo* pFI )
     mbArtItalic( false ),
     mbArtBold( false ),
     mbUseGamma( false ),
-    mpLayoutEngine( nullptr )
+    mpLayoutEngine( nullptr ),
+    mpHbFace( nullptr )
 {
     // TODO: move update of mpFontInstance into FontEntry class when
     // it becomes responsible for the ServerFont instantiation
@@ -610,6 +611,9 @@ ServerFont::~ServerFont()
 
     mpFontInfo->ReleaseFaceFT();
 
+    if( mpHbFace )
+        hb_face_destroy( mpHbFace );
+
     ReleaseFromGarbageCollect();
 }
 
diff --git a/vcl/win/gdi/salfont.cxx b/vcl/win/gdi/salfont.cxx
index 0ba1467..1623f98 100644
--- a/vcl/win/gdi/salfont.cxx
+++ b/vcl/win/gdi/salfont.cxx
@@ -1008,7 +1008,8 @@ WinFontFace::WinFontFace( const FontAttributes& rDFS,
     mnPitchAndFamily( nPitchAndFamily ),
     mbAliasSymbolsHigh( false ),
     mbAliasSymbolsLow( false ),
-    mbGsubRead( false )
+    mbGsubRead( false ),
+    mpHbFace( nullptr )
 {
     SetBitmapSize( 0, nHeight );
 
@@ -1049,6 +1050,9 @@ WinFontFace::~WinFontFace()
 #endif
 #endif // ENABLE_GRAPHITE
     delete mpEncodingVector;
+
+    if( mpHbFace )
+        hb_face_destroy( mpHbFace );
 }
 
 sal_IntPtr WinFontFace::GetFontId() const
@@ -1201,16 +1205,22 @@ void WinFontFace::ReadCmapTable( HDC hDC ) const
     }
 }
 
-int WinFontFace::GetTable(const char pTagName[5], const unsigned char*& pResBuffer, HDC hDC)
+sal_uLong WinSalGraphics::GetTable( const char pTagName[5], const unsigned char*& pResBuffer, void*& pTableContext, IDWriteFontFace*& pIDFace )
 {
-    const DWORD nTableTag = CalcTag( pTagName );
-    RawFontData aRawFontData( hDC, nTableTag );
-
-    if( !aRawFontData.get() )
+    if( !pIDFace )
         return 0;
-
-    pResBuffer = aRawFontData.steal();
-    return aRawFontData.size();
+    const void* pResBuf;
+    UINT32 nSize;
+    BOOL bExists;
+    HRESULT hr = S_OK;
+    const DWORD nTableTag = DWRITE_MAKE_OPENTYPE_TAG( pTagName[0], pTagName[1], pTagName[2], pTagName[3] );
+    hr = pIDFace->TryGetFontTable( nTableTag, &pResBuf, &nSize, &pTableContext, &bExists );
+    if( SUCCEEDED( hr ) && ( bExists ) )
+    {
+        pResBuffer = static_cast<const unsigned char*>(pResBuf);
+        return static_cast<sal_uLong>(nSize);
+    }
+    return 0;
 }
 
 void WinFontFace::GetFontCapabilities( HDC hDC ) const
diff --git a/vcl/win/gdi/winlayout.cxx b/vcl/win/gdi/winlayout.cxx
index 538f46a..4aafa44 100644
--- a/vcl/win/gdi/winlayout.cxx
+++ b/vcl/win/gdi/winlayout.cxx
@@ -3518,6 +3518,24 @@ bool D2DWriteTextOutRenderer::operator ()(SalLayout const &rLayout, HDC hDC,
     return (succeeded && nGlyphs >= 1 && pRectToErase);
 }
 
+IDWriteFontFace* D2DWriteTextOutRenderer::GetDWriteFontFace(HDC hDC) const
+{
+    IDWriteFontFace* pFontFace;
+    bool succeeded = false;
+    try
+    {
+        succeeded = SUCCEEDED(mpGdiInterop->CreateFontFaceFromHdc(hDC, &pFontFace));
+    }
+    catch (const std::exception& e)
+    {
+        SAL_WARN("vcl.gdi.opengl", "Error in dwrite while creating font face: " << e.what());
+        return nullptr;
+    }
+    if(succeeded)
+    return pFontFace;
+    else return nullptr;
+}
+
 bool D2DWriteTextOutRenderer::BindFont(HDC hDC)
 {
     // A TextOutRender can only be bound to one font at a time, so the
@@ -3884,7 +3902,7 @@ SalLayout* WinSalGraphics::GetTextLayout( ImplLayoutArgs& rArgs, int nFallbackLe
 
     if( getenv("SAL_USE_COMMON_LAYOUT") )
     {
-        return new CommonSalLayout( getHDC(), rFontInstance );
+        return new CommonSalLayout( this, rFontInstance, rFontFace );
     }
     else
     {
@@ -4047,6 +4065,9 @@ PhysicalFontFace* WinFontFace::Clone() const
     if ( mpGraphiteData )
         mpGraphiteData->AddReference();
 #endif
+    if( mpHbFace )
+        hb_face_reference( mpHbFace );
+
     PhysicalFontFace* pClone = new WinFontFace( *this );
     return pClone;
 }
commit b938dc9a11f0017043852d415bdcfc902a081426
Author: Akash Jain <akash96j at gmail.com>
Date:   Thu Aug 18 20:51:25 2016 +0530

    GSoC: Move TextOutRenderer definition to winlayout.hxx
    
    Change-Id: I705f92d5ad55d7612c6413436c801de13f5352a6

diff --git a/vcl/inc/win/winlayout.hxx b/vcl/inc/win/winlayout.hxx
index 7905513..4c6874f 100755
--- a/vcl/inc/win/winlayout.hxx
+++ b/vcl/inc/win/winlayout.hxx
@@ -417,4 +417,105 @@ public:
 
 #endif
 
+class TextOutRenderer
+{
+protected:
+    explicit TextOutRenderer() = default;
+    TextOutRenderer(const TextOutRenderer &) = delete;
+    TextOutRenderer & operator = (const TextOutRenderer &) = delete;
+
+public:
+    static TextOutRenderer & get();
+
+    virtual ~TextOutRenderer() = default;
+
+    virtual bool operator ()(SalLayout const &rLayout, HDC hDC,
+        const Rectangle* pRectToErase,
+        Point* pPos, int* pGetNextGlypInfo) = 0;
+};
+
+class ExTextOutRenderer : public TextOutRenderer
+{
+    ExTextOutRenderer(const ExTextOutRenderer &) = delete;
+    ExTextOutRenderer & operator = (const ExTextOutRenderer &) = delete;
+
+public:
+    explicit ExTextOutRenderer() = default;
+    virtual ~ExTextOutRenderer() override = default;
+
+    bool operator ()(SalLayout const &rLayout, HDC hDC,
+        const Rectangle* pRectToErase,
+        Point* pPos, int* pGetNextGlypInfo) override;
+};
+
+#if ENABLE_GRAPHITE_DWRITE
+
+class D2DWriteTextOutRenderer : public TextOutRenderer
+{
+    typedef HRESULT(WINAPI *pD2D1CreateFactory_t)(D2D1_FACTORY_TYPE,
+        REFIID, const D2D1_FACTORY_OPTIONS *, void **);
+    typedef HRESULT(WINAPI *pDWriteCreateFactory_t)(DWRITE_FACTORY_TYPE,
+        REFIID, IUnknown **);
+
+    static HINSTANCE mmD2d1, mmDWrite;
+    static pD2D1CreateFactory_t     D2D1CreateFactory;
+    static pDWriteCreateFactory_t   DWriteCreateFactory;
+
+public:
+    static bool InitModules();
+
+    explicit D2DWriteTextOutRenderer();
+    virtual ~D2DWriteTextOutRenderer() override;
+
+    bool operator ()(SalLayout const &rLayout, HDC hDC,
+        const Rectangle* pRectToErase,
+        Point* pPos, int* pGetNextGlypInfo) override;
+
+    inline bool BindDC(HDC hDC, Rectangle const & rRect = Rectangle(0, 0, 0, 0)) {
+        RECT const rc = { rRect.Left(), rRect.Top(), rRect.Right(), rRect.Bottom() };
+        HRESULT ok= mpRT->BindDC(hDC, &rc);
+        return SUCCEEDED(ok);
+    }
+
+    bool BindFont(HDC hDC) /*override*/;
+    bool ReleaseFont() /*override*/;
+
+    std::vector<Rectangle>  GetGlyphInkBoxes(uint16_t * pGid, uint16_t * pGidEnd) const /*override*/;
+    ID2D1RenderTarget * GetRenderTarget() const { return mpRT; }
+    IDWriteFontFace*    GetDWriteFontFace(HDC) const;
+    IDWriteFontFace   * GetFontFace() const { return mpFontFace; }
+    float               GetEmHeight() const { return mlfEmHeight; }
+
+    inline HRESULT CreateRenderTarget() {
+        if (mpRT) mpRT->Release(); mpRT = nullptr;
+        return mpD2DFactory->CreateDCRenderTarget(&mRTProps, &mpRT);
+    }
+
+    inline bool Ready() const { return mpGdiInterop && mpRT; }
+
+private:
+    static void CleanupModules();
+
+    // This is a singleton object disable copy ctor and assignemnt operator
+    D2DWriteTextOutRenderer(const D2DWriteTextOutRenderer &) = delete;
+    D2DWriteTextOutRenderer & operator = (const D2DWriteTextOutRenderer &) = delete;
+
+    bool GetDWriteFaceFromHDC(HDC hDC, IDWriteFontFace ** ppFontFace, float * lfSize) const;
+    bool GetDWriteInkBox(IDWriteFontFace & rFontFace, SalLayout const &rLayout, float const lfEmHeight, Rectangle &) const;
+    bool DrawGlyphs(const Point & origin, uint16_t * pGid, uint16_t * pGidEnd,
+        float * pAdvances, Point * pOffsets) /*override*/;
+
+    ID2D1Factory        * mpD2DFactory;
+    IDWriteFactory      * mpDWriteFactory;
+    IDWriteGdiInterop   * mpGdiInterop;
+    ID2D1DCRenderTarget * mpRT;
+    const D2D1_RENDER_TARGET_PROPERTIES mRTProps;
+
+    IDWriteFontFace * mpFontFace;
+    float             mlfEmHeight;
+    HDC               mhDC;
+};
+
+#endif
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/win/gdi/winlayout.cxx b/vcl/win/gdi/winlayout.cxx
index 48c40af..538f46a 100644
--- a/vcl/win/gdi/winlayout.cxx
+++ b/vcl/win/gdi/winlayout.cxx
@@ -17,8 +17,6 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-#include "win/winlayout.hxx"
-
 #include "osl/module.h"
 #include "osl/file.h"
 
@@ -56,104 +54,8 @@
 std::unique_ptr<GlobalGlyphCache> GlyphCache::gGlobalGlyphCache(new GlobalGlyphCache);
 GLuint WinFontInstance::mnGLyphyProgram = 0;
 
-class TextOutRenderer
-{
-protected:
-    explicit TextOutRenderer() = default;
-    TextOutRenderer(const TextOutRenderer &) = delete;
-    TextOutRenderer & operator = (const TextOutRenderer &) = delete;
-
-public:
-    static TextOutRenderer & get();
-
-    virtual ~TextOutRenderer() = default;
-
-    virtual bool operator ()(SalLayout const &rLayout, HDC hDC,
-        const Rectangle* pRectToErase,
-        Point* pPos, int* pGetNextGlypInfo) = 0;
-};
-
-class ExTextOutRenderer : public TextOutRenderer
-{
-    ExTextOutRenderer(const ExTextOutRenderer &) = delete;
-    ExTextOutRenderer & operator = (const ExTextOutRenderer &) = delete;
-
-public:
-    explicit ExTextOutRenderer() = default;
-    virtual ~ExTextOutRenderer() override = default;
-
-    bool operator ()(SalLayout const &rLayout, HDC hDC,
-        const Rectangle* pRectToErase,
-        Point* pPos, int* pGetNextGlypInfo) override;
-};
-
 #if ENABLE_GRAPHITE_DWRITE
 
-class D2DWriteTextOutRenderer : public TextOutRenderer
-{
-    typedef HRESULT(WINAPI *pD2D1CreateFactory_t)(D2D1_FACTORY_TYPE,
-        REFIID, const D2D1_FACTORY_OPTIONS *, void **);
-
-    typedef HRESULT(WINAPI *pDWriteCreateFactory_t)(DWRITE_FACTORY_TYPE,
-        REFIID, IUnknown **);
-
-    static HINSTANCE mmD2d1, mmDWrite;
-    static pD2D1CreateFactory_t     D2D1CreateFactory;
-    static pDWriteCreateFactory_t   DWriteCreateFactory;
-
-public:
-    static bool InitModules();
-
-    explicit D2DWriteTextOutRenderer();
-    virtual ~D2DWriteTextOutRenderer() override;
-
-    bool operator ()(SalLayout const &rLayout, HDC hDC,
-        const Rectangle* pRectToErase,
-        Point* pPos, int* pGetNextGlypInfo) override;
-
-    inline bool BindDC(HDC hDC, Rectangle const & rRect = Rectangle(0, 0, 0, 0)) {
-        RECT const rc = { rRect.Left(), rRect.Top(), rRect.Right(), rRect.Bottom() };
-        return SUCCEEDED(mpRT->BindDC(hDC, &rc));
-    }
-
-    bool BindFont(HDC hDC) /*override*/;
-    bool ReleaseFont() /*override*/;
-
-    std::vector<Rectangle>  GetGlyphInkBoxes(uint16_t * pGid, uint16_t * pGidEnd) const /*override*/;
-    ID2D1RenderTarget * GetRenderTarget() const { return mpRT; }
-    IDWriteFontFace   * GetFontFace() const { return mpFontFace; }
-    float               GetEmHeight() const { return mlfEmHeight; }
-
-    inline HRESULT CreateRenderTarget() {
-        if (mpRT) mpRT->Release(); mpRT = nullptr;
-        return mpD2DFactory->CreateDCRenderTarget(&mRTProps, &mpRT);
-    }
-
-    inline bool Ready() const { return mpGdiInterop && mpRT; }
-
-private:
-    static void CleanupModules();
-
-    // This is a singleton object disable copy ctor and assignemnt operator
-    D2DWriteTextOutRenderer(const D2DWriteTextOutRenderer &) = delete;
-    D2DWriteTextOutRenderer & operator = (const D2DWriteTextOutRenderer &) = delete;
-
-    bool GetDWriteFaceFromHDC(HDC hDC, IDWriteFontFace ** ppFontFace, float * lfSize) const;
-    bool GetDWriteInkBox(IDWriteFontFace & rFontFace, SalLayout const &rLayout, float const lfEmHeight, Rectangle &) const;
-    bool DrawGlyphs(const Point & origin, uint16_t * pGid, uint16_t * pGidEnd,
-        float * pAdvances, Point * pOffsets) /*override*/;
-
-    ID2D1Factory        * mpD2DFactory;
-    IDWriteFactory      * mpDWriteFactory;
-    IDWriteGdiInterop   * mpGdiInterop;
-    ID2D1DCRenderTarget * mpRT;
-    const D2D1_RENDER_TARGET_PROPERTIES mRTProps;
-
-    IDWriteFontFace * mpFontFace;
-    float             mlfEmHeight;
-    HDC               mhDC;
-};
-
 inline void WinFontInstance::CacheGlyphWidth( int nCharCode, int nCharWidth )
 {
     maWidthMap[ nCharCode ] = nCharWidth;
commit db6ed6137d4c52e6491f691ff0b69ef6c5fc7cd2
Author: Akash Jain <akash96j at gmail.com>
Date:   Sat Jul 23 21:41:40 2016 +0530

    GSoC: Add Graphite support for CommonSalLayout
    
    Enable Graphite font rendering in CommonSalLayout through Harfbuzz
    
    Change-Id: Ia6a00a1bb6ea1a7bd705ed91d4f4f6cb9803e062

diff --git a/vcl/unx/generic/gdi/cairotextrender.cxx b/vcl/unx/generic/gdi/cairotextrender.cxx
index 6dabc15..d4bc0f7 100644
--- a/vcl/unx/generic/gdi/cairotextrender.cxx
+++ b/vcl/unx/generic/gdi/cairotextrender.cxx
@@ -532,23 +532,23 @@ SalLayout* CairoTextRender::GetTextLayout( ImplLayoutArgs& rArgs, int nFallbackL
     if( mpServerFont[ nFallbackLevel ]
     && !(rArgs.mnFlags & SalLayoutFlags::DisableGlyphProcessing) )
     {
-#if ENABLE_GRAPHITE
-        // Is this a Graphite font?
-        if (!bDisableGraphite_ &&
-            GraphiteServerFontLayout::IsGraphiteEnabledFont(*mpServerFont[nFallbackLevel]))
+        if(getenv("SAL_USE_COMMON_LAYOUT"))
         {
-            pLayout = new GraphiteServerFontLayout(*mpServerFont[nFallbackLevel]);
+            pLayout = new CommonSalLayout( *mpServerFont[ nFallbackLevel ] );
         }
         else
-#endif
-            if(getenv("SAL_USE_COMMON_LAYOUT"))
+        {
+#if ENABLE_GRAPHITE
+            // Is this a Graphite font?
+            if (!bDisableGraphite_ &&
+                GraphiteServerFontLayout::IsGraphiteEnabledFont(*mpServerFont[nFallbackLevel]))
             {
-                pLayout = new CommonSalLayout( *mpServerFont[ nFallbackLevel ] );
+                pLayout = new GraphiteServerFontLayout(*mpServerFont[nFallbackLevel]);
             }
             else
-            {
+#endif
                 pLayout = new ServerFontLayout( *mpServerFont[ nFallbackLevel ] );
-            }
+        }
     }
 
     return pLayout;
commit b839bd9019dbe503b7c23c025f20d62f9b52d36e
Author: Akash Jain <akash96j at gmail.com>
Date:   Sat Jul 23 21:21:46 2016 +0530

    GSoC: Enable building Harfbuzz with Graphite
    
    Harfbuzz will now need to be built with Graphite support. This allows
    Harfbuzz to handle Graphite fonts. In case we all building with
    system Harfbuzz, then it should be built with Graphite support else
    we error out.
    
    Change-Id: I156ec08b9e5ad7ce87cc15e4b5852d9c57c98f7f

diff --git a/configure.ac b/configure.ac
index fd133c9..6c035f0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9262,10 +9262,14 @@ if test $_os != Darwin -a $_os != Android -a $_os != iOS -a \( -z "$enable_graph
     AC_MSG_RESULT([yes])
     ENABLE_GRAPHITE="TRUE"
     AC_DEFINE(ENABLE_GRAPHITE)
-    libo_CHECK_SYSTEM_MODULE([graphite],[GRAPHITE],[graphite2 >= 0.9.3])
+    libo_CHECK_SYSTEM_MODULE([graphite],[GRAPHITE],[graphite2 >= 0.9.3],["-I${WORKDIR}/UnpackedTarball/graphite/include"],["-L${WORKDIR}/LinkTarget/StaticLibrary -lgraphite"])
     if test "$with_system_graphite" = "yes"; then
         libo_MINGW_CHECK_DLL([libgraphite2])
     fi
+    if test "$COM" = "MSC"; then # override the above
+        GRAPHITE_LIBS="${WORKDIR}/LinkTarget/StaticLibrary/graphite.lib"
+    fi
+
 else
     AC_MSG_RESULT([no])
 fi
@@ -9351,12 +9355,22 @@ if test "$with_harfbuzz" = "yes" -o \( $_os != WINNT -a $_os != Darwin -a $_os !
     AC_MSG_RESULT([yes])
     ENABLE_HARFBUZZ="TRUE"
     if $PKG_CONFIG --atleast-version 0.9.18 harfbuzz; then
-        libo_CHECK_SYSTEM_MODULE([harfbuzz],[HARFBUZZ],[harfbuzz-icu >= 0.9.18],["-I${WORKDIR}/UnpackedTarball/harfbuzz/src"],["-L${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs -lharfbuzz -lharfbuzz-icu"])
+        libo_CHECK_SYSTEM_MODULE([harfbuzz],[HARFBUZZ],[harfbuzz-icu >= 0.9.18],["-I${WORKDIR}/UnpackedTarball/harfbuzz/src"],["-L${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs -lharfbuzz"])
     else
-        libo_CHECK_SYSTEM_MODULE([harfbuzz],[HARFBUZZ],[harfbuzz >= 0.9.10],[-I${WORKDIR}/UnpackedTarball/harfbuzz/src],["-L${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs -lharfbuzz -lharfbuzz-icu"])
+        libo_CHECK_SYSTEM_MODULE([harfbuzz],[HARFBUZZ],[harfbuzz >= 0.9.10],[-I${WORKDIR}/UnpackedTarball/harfbuzz/src],["-L${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs -lharfbuzz"])
     fi
     if test "$COM" = "MSC"; then # override the above
-        HARFBUZZ_LIBS="${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs/libharfbuzz.lib ${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs/libharfbuzz-icu.lib"
+        HARFBUZZ_LIBS="${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs/libharfbuzz.lib"
+    fi
+    if test "$with_system_harfbuzz" = "yes"; then
+        AC_MSG_CHECKING([whether system Harfbuzz is built with Graphite support])
+        _save_libs="$LIBS"
+        _save_cflags="$CFLAGS"
+        LIBS="$LIBS $HARFBUZZ_LIBS"
+        CFLAGS="$CFLAGS $HARFBUZZ_CFLAGS"
+        AC_CHECK_FUNC(hb_graphite2_face_get_gr_face,,[AC_MSG_ERROR([Harfbuzz needs to be built with Graphite support.])])
+        LIBS="$_save_libs"
+        CFLAGS="$_save_cflags"
     fi
 else
     AC_MSG_RESULT([no])
diff --git a/external/harfbuzz/ExternalProject_harfbuzz.mk b/external/harfbuzz/ExternalProject_harfbuzz.mk
index 9e01833..f6a2d49 100644
--- a/external/harfbuzz/ExternalProject_harfbuzz.mk
+++ b/external/harfbuzz/ExternalProject_harfbuzz.mk
@@ -23,19 +23,22 @@ $(call gb_ExternalProject_get_state_target,harfbuzz,build) :
 	$(call gb_ExternalProject_run,build,\
 		$(if $(CROSS_COMPILING),ICU_CONFIG=$(SRCDIR)/external/icu/cross-bin/icu-config) \
 		$(if $(SYSTEM_ICU),,ICU_CONFIG=$(SRCDIR)/external/icu/cross-bin/icu-config) \
+		GRAPHITE2_CFLAGS="$(GRAPHITE_CFLAGS)" \
+		GRAPHITE2_LIBS="$(GRAPHITE_LIBS)" \
 		./configure \
 			--enable-static \
 			--disable-shared \
 			--disable-gtk-doc \
 			--with-pic \
-			--with-icu=yes \
+			--with-icu=builtin \
 			--with-freetype=no \
 			--with-cairo=no \
 			--with-glib=no \
+			--with-graphite2=yes \
 			$(if $(verbose),--disable-silent-rules,--enable-silent-rules) \
 			$(if $(CROSS_COMPILING),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \
 			$(if $(filter LINUX,$(OS)),CXXFLAGS="$(CXXFLAGS) -fvisibility=hidden") \
-		&& (cd $(EXTERNAL_WORKDIR)/src && $(MAKE)) \
+		&& (cd $(EXTERNAL_WORKDIR)/src && $(MAKE) lib) \
 	)
 
 # vim: set noet sw=4 ts=4:
commit 1705037116972affb0bade18bb9549bdc854bc2d
Author: Akash Jain <akash96j at gmail.com>
Date:   Wed Jul 20 23:51:56 2016 +0530

    GSoC: Integrate new CommonSalLayout in quartz/ code
    
    Change-Id: I07a9c956f09be5d43ee58ff0784ba0f81f52cd9a

diff --git a/vcl/inc/CommonSalLayout.hxx b/vcl/inc/CommonSalLayout.hxx
index 5a4c9a2..ba93855 100644
--- a/vcl/inc/CommonSalLayout.hxx
+++ b/vcl/inc/CommonSalLayout.hxx
@@ -23,6 +23,7 @@
 #elif defined(MACOSX) || defined(IOS)
 #include <com/sun/star/i18n/XBreakIterator.hpp>
 #include "quartz/ctfonts.hxx"
+#include <hb-coretext.h>
 
 #else
 #include "unx/freetype_glyphcache.hxx"
diff --git a/vcl/quartz/ctfonts.hxx b/vcl/inc/quartz/ctfonts.hxx
similarity index 100%
rename from vcl/quartz/ctfonts.hxx
rename to vcl/inc/quartz/ctfonts.hxx
diff --git a/vcl/inc/quartz/salgdi.h b/vcl/inc/quartz/salgdi.h
index 77a8f5a..f283ea9 100644
--- a/vcl/inc/quartz/salgdi.h
+++ b/vcl/inc/quartz/salgdi.h
@@ -111,6 +111,8 @@ private:
     CFMutableDictionaryRef  mpStyleDict;
 
     friend class CTLayout;
+    friend class AquaSalGraphics;
+    friend class CommonSalLayout;
     CFMutableDictionaryRef  GetStyleDict( void ) const { return mpStyleDict; }
 };
 
diff --git a/vcl/quartz/ctfonts.cxx b/vcl/quartz/ctfonts.cxx
index 36b155d..28be80b 100644
--- a/vcl/quartz/ctfonts.cxx
+++ b/vcl/quartz/ctfonts.cxx
@@ -25,7 +25,7 @@
 #include <vcl/settings.hxx>
 
 
-#include "ctfonts.hxx"
+#include "quartz/ctfonts.hxx"
 #include "impfont.hxx"
 #ifdef MACOSX
 #include "osx/saldata.hxx"
diff --git a/vcl/quartz/ctlayout.cxx b/vcl/quartz/ctlayout.cxx
index 35f7143..0e80020 100644
--- a/vcl/quartz/ctlayout.cxx
+++ b/vcl/quartz/ctlayout.cxx
@@ -25,9 +25,10 @@
 #include <sal/types.h>
 #include <tools/debug.hxx>
 
-#include "ctfonts.hxx"
+#include "quartz/ctfonts.hxx"
 #include "CTRunData.hxx"
 #include "quartz/utils.h"
+#include "CommonSalLayout.hxx"
 
 
 class CTLayout : public SalLayout
@@ -781,7 +782,14 @@ void CTLayout::Simplify( bool /*bIsBase*/ ) {}
 
 SalLayout* CoreTextStyle::GetTextLayout() const
 {
-    return new CTLayout( this);
+    if( getenv("SAL_USE_COMMON_LAYOUT") )
+    {
+        return new CommonSalLayout( *this );
+    }
+    else
+    {
+        return new CTLayout( this);
+    }
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/quartz/salgdi.cxx b/vcl/quartz/salgdi.cxx
index d0f73a8..8362696 100644
--- a/vcl/quartz/salgdi.cxx
+++ b/vcl/quartz/salgdi.cxx
@@ -36,7 +36,7 @@
 #include <vcl/svapp.hxx>
 #include <vcl/sysdata.hxx>
 
-#include "ctfonts.hxx"
+#include "quartz/ctfonts.hxx"
 #include "fontsubset.hxx"
 #include "impfont.hxx"
 #include "impfontcharmap.hxx"
@@ -414,8 +414,39 @@ bool AquaSalGraphics::GetGlyphBoundRect( sal_GlyphId aGlyphId, Rectangle& rRect
     return bRC;
 }
 
-void AquaSalGraphics::DrawSalLayout( const CommonSalLayout& )
-{
+void AquaSalGraphics::DrawSalLayout( const CommonSalLayout& rLayout )
+{
+    CGContextRef context = mrContext;
+    SAL_INFO( "vcl.ct", "CGContextSaveGState(" << context << ")" );
+    CGContextSaveGState( context );
+    SAL_INFO( "vcl.ct", "CGContextScaleCTM(" << context << ",1.0,-1.0)" );
+    const CoreTextStyle& rCTStyle = rLayout.getFontData();
+
+    CTFontRef pFont = static_cast<CTFontRef>(CFDictionaryGetValue( rCTStyle.GetStyleDict(), kCTFontAttributeName ));
+    CGContextScaleCTM(context, 1.0, -1.0);
+    CGContextSetShouldAntialias(context, !mbNonAntialiasedText);
+    // rotate the matrix
+    const CGFloat fRadians = rCTStyle.mfFontRotation;
+    CGContextRotateCTM( context, +fRadians );
+    const CGAffineTransform aInvMatrix = CGAffineTransformMakeRotation( -fRadians );
+    CGContextSetFillColor( context, maTextColor.AsArray() );
+
+    // draw the text
+    Point aPos;
+    sal_GlyphId aGlyphId;
+    std::vector<CGGlyph> aGlyphIds;
+    std::vector<CGPoint> aGlyphPos;
+    int nStart = 0;
+    for(; rLayout.GetNextGlyphs( 1, &aGlyphId, aPos, nStart ); )
+    {
+        aGlyphIds.push_back( aGlyphId & GF_IDXMASK );
+        aGlyphPos.push_back( CGPointApplyAffineTransform( CGPointMake( aPos.X(), -1*aPos.Y() ), aInvMatrix ) );
+    }
+    CTFontDrawGlyphs( pFont, aGlyphIds.data(), aGlyphPos.data(), nStart, context);
+
+    // restore the original graphic context transformations
+    SAL_INFO( "vcl.ct", "CGContextRestoreGState(" << context << ")" );
+    CGContextRestoreGState( context );
 }
 
 void AquaSalGraphics::SetFont( FontSelectPattern* pReqFont, int /*nFallbackLevel*/ )
diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
index f37a257..eb5b6a2 100644
--- a/vcl/source/gdi/CommonSalLayout.cxx
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -57,7 +57,7 @@ static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pU
 
     hb_blob_t* pBlob = nullptr;
     if (pBuffer != nullptr)
-#if defined(_WIN32)
+#if defined(_WIN32) || defined(MACOSX) || defined(IOS)
         pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY,
                                const_cast<unsigned char*>(pBuffer), [](void* data){ delete[] reinterpret_cast<unsigned char*>(data); } );
 #else
@@ -97,7 +97,13 @@ CommonSalLayout::CommonSalLayout(const CoreTextStyle& rCoreTextStyle)
     maFontSelData(rCoreTextStyle.maFontSelData),
     mrCoreTextStyle(rCoreTextStyle)
 {
-    mpHbFace = hb_face_create_for_tables(getFontTable, const_cast<CoreTextFontFace*>(rCoreTextStyle.mpFontData), nullptr);
+    CTFontRef pCTFont = static_cast<CTFontRef>(CFDictionaryGetValue(rCoreTextStyle.GetStyleDict(), kCTFontAttributeName));
+    CGFontRef pCGFont = CTFontCopyGraphicsFont(pCTFont, NULL);
+    if (pCGFont)
+        mpHbFace = hb_coretext_face_create(pCGFont);
+    else
+        mpHbFace = hb_face_create_for_tables(getFontTable, const_cast<CoreTextFontFace*>(rCoreTextStyle.mpFontData), nullptr);
+    CGFontRelease(pCGFont);
 }
 
 #else
commit 4bc23caefa786fb135a9b3de11ef5dfe563a421c
Author: Akash Jain <akash96j at gmail.com>
Date:   Wed Jul 6 17:56:15 2016 +0530

    GSoC: Integrate new CommonSalLayout in win/ code
    
    Change-Id: Ifeb2fa7ca9e2cd0da1c504d4e770aa0bb1b0b0de

diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
index f19bcdd..f37a257 100644
--- a/vcl/source/gdi/CommonSalLayout.cxx
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -57,7 +57,12 @@ static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pU
 
     hb_blob_t* pBlob = nullptr;
     if (pBuffer != nullptr)
+#if defined(_WIN32)
+        pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY,
+                               const_cast<unsigned char*>(pBuffer), [](void* data){ delete[] reinterpret_cast<unsigned char*>(data); } );
+#else
         pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY, nullptr, nullptr);
+#endif
 
     return pBlob;
 }
@@ -74,12 +79,18 @@ static hb_unicode_funcs_t* getUnicodeFuncs()
 #if defined(_WIN32)
 CommonSalLayout::CommonSalLayout(HDC hDC, WinFontInstance& rWinFontInstance)
 :   mhDC(hDC),
+    mhFont((HFONT)GetCurrentObject(hDC, OBJ_FONT)),
     mpHbFace(nullptr),
     maFontSelData(rWinFontInstance.maFontSelData)
 {
     mpHbFace = hb_face_create_for_tables(getFontTable, &hDC, nullptr);
 }
 
+void CommonSalLayout::InitFont() const
+{
+    SelectObject( mhDC, mhFont );
+}
+
 #elif defined(MACOSX) || defined(IOS)
 CommonSalLayout::CommonSalLayout(const CoreTextStyle& rCoreTextStyle)
 :   mpHbFace(nullptr),
diff --git a/vcl/win/gdi/salfont.cxx b/vcl/win/gdi/salfont.cxx
index 2eae16e..0ba1467 100644
--- a/vcl/win/gdi/salfont.cxx
+++ b/vcl/win/gdi/salfont.cxx
@@ -2612,7 +2612,4 @@ void WinSalGraphics::GetGlyphWidths( const PhysicalFontFace* pFont,
     }
 }
 
-void WinSalGraphics::DrawSalLayout( const CommonSalLayout& )
-{}
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/win/gdi/winlayout.cxx b/vcl/win/gdi/winlayout.cxx
index cbf0b58..48c40af 100644
--- a/vcl/win/gdi/winlayout.cxx
+++ b/vcl/win/gdi/winlayout.cxx
@@ -34,6 +34,7 @@
 
 #include "sft.hxx"
 #include "sallayout.hxx"
+#include "CommonSalLayout.hxx"
 
 #include <cstdio>
 #include <cstdlib>
@@ -67,7 +68,7 @@ public:
 
     virtual ~TextOutRenderer() = default;
 
-    virtual bool operator ()(WinLayout const &rLayout, HDC hDC,
+    virtual bool operator ()(SalLayout const &rLayout, HDC hDC,
         const Rectangle* pRectToErase,
         Point* pPos, int* pGetNextGlypInfo) = 0;
 };
@@ -81,7 +82,7 @@ public:
     explicit ExTextOutRenderer() = default;
     virtual ~ExTextOutRenderer() override = default;
 
-    bool operator ()(WinLayout const &rLayout, HDC hDC,
+    bool operator ()(SalLayout const &rLayout, HDC hDC,
         const Rectangle* pRectToErase,
         Point* pPos, int* pGetNextGlypInfo) override;
 };
@@ -106,7 +107,7 @@ public:
     explicit D2DWriteTextOutRenderer();
     virtual ~D2DWriteTextOutRenderer() override;
 
-    bool operator ()(WinLayout const &rLayout, HDC hDC,
+    bool operator ()(SalLayout const &rLayout, HDC hDC,
         const Rectangle* pRectToErase,
         Point* pPos, int* pGetNextGlypInfo) override;
 
@@ -138,7 +139,7 @@ private:
     D2DWriteTextOutRenderer & operator = (const D2DWriteTextOutRenderer &) = delete;
 
     bool GetDWriteFaceFromHDC(HDC hDC, IDWriteFontFace ** ppFontFace, float * lfSize) const;
-    bool GetDWriteInkBox(IDWriteFontFace & rFontFace, WinLayout const &rLayout, float const lfEmHeight, Rectangle &) const;
+    bool GetDWriteInkBox(IDWriteFontFace & rFontFace, SalLayout const &rLayout, float const lfEmHeight, Rectangle &) const;
     bool DrawGlyphs(const Point & origin, uint16_t * pGid, uint16_t * pGidEnd,
         float * pAdvances, Point * pOffsets) /*override*/;
 
@@ -3485,7 +3486,7 @@ TextOutRenderer & TextOutRenderer::get()
 }
 
 
-bool ExTextOutRenderer::operator ()(WinLayout const &rLayout, HDC hDC,
+bool ExTextOutRenderer::operator ()(SalLayout const &rLayout, HDC hDC,
     const Rectangle* pRectToErase,
     Point* pPos, int* pGetNextGlypInfo)
 {
@@ -3544,7 +3545,7 @@ D2DWriteTextOutRenderer::~D2DWriteTextOutRenderer()
     CleanupModules();
 }
 
-bool D2DWriteTextOutRenderer::operator ()(WinLayout const &rLayout, HDC hDC,
+bool D2DWriteTextOutRenderer::operator ()(SalLayout const &rLayout, HDC hDC,
     const Rectangle* pRectToErase,
     Point* pPos, int* pGetNextGlypInfo)
 {
@@ -3784,7 +3785,7 @@ bool D2DWriteTextOutRenderer::GetDWriteFaceFromHDC(HDC hDC, IDWriteFontFace ** p
     return succeeded;
 }
 
-bool D2DWriteTextOutRenderer::GetDWriteInkBox(IDWriteFontFace & rFontFace, WinLayout const &rLayout, float const /*lfEmHeight*/, Rectangle & rOut) const
+bool D2DWriteTextOutRenderer::GetDWriteInkBox(IDWriteFontFace & rFontFace, SalLayout const &rLayout, float const /*lfEmHeight*/, Rectangle & rOut) const
 {
     rOut.SetEmpty();
 
@@ -3979,66 +3980,73 @@ SalLayout* WinSalGraphics::GetTextLayout( ImplLayoutArgs& rArgs, int nFallbackLe
     const WinFontFace& rFontFace = *mpWinFontData[ nFallbackLevel ];
     WinFontInstance& rFontInstance = *mpWinFontEntry[ nFallbackLevel ];
 
-    bool bUseOpenGL = OpenGLHelper::isVCLOpenGLEnabled() && !mbPrinter;
-
-    if (!bUspInited)
-        InitUSP();
-
-    if( !(rArgs.mnFlags & SalLayoutFlags::ComplexDisabled) )
+    if( getenv("SAL_USE_COMMON_LAYOUT") )
     {
-#if ENABLE_GRAPHITE
-        if (rFontFace.SupportsGraphite())
-        {
-            pWinLayout = new GraphiteWinLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
-        }
-        else
-#endif // ENABLE_GRAPHITE
-        {
-            // script complexity is determined in upper layers
-            pWinLayout = new UniscribeLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
-            // NOTE: it must be guaranteed that the WinSalGraphics lives longer than
-            // the created UniscribeLayout, otherwise the data passed into the
-            // constructor might become invalid too early
-        }
+        return new CommonSalLayout( getHDC(), rFontInstance );
     }
     else
     {
-#if ENABLE_GRAPHITE
-        if (rFontFace.SupportsGraphite())
-        {
-            pWinLayout = new GraphiteWinLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
-        }
-        else
-#endif // ENABLE_GRAPHITE
-        {
-            static bool bAvoidSimpleWinLayout = (std::getenv("VCL_NO_SIMPLEWINLAYOUT") != NULL);
+        bool bUseOpenGL = OpenGLHelper::isVCLOpenGLEnabled() && !mbPrinter;
 
-            if (!bAvoidSimpleWinLayout)
-            {
-                if( (rArgs.mnFlags & SalLayoutFlags::KerningPairs) && !rFontInstance.HasKernData() )
-                {
-                    // TODO: directly cache kerning info in the rFontInstance
-                    // TODO: get rid of kerning methods+data in WinSalGraphics object
-                    GetKernPairs();
-                    rFontInstance.SetKernData( mnFontKernPairCount, mpFontKernPairs );
-                }
+        if (!bUspInited)
+            InitUSP();
 
-                pWinLayout = new SimpleWinLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
+        if( !(rArgs.mnFlags & SalLayoutFlags::ComplexDisabled) )
+        {
+#if ENABLE_GRAPHITE
+            if (rFontFace.SupportsGraphite())
+            {
+                pWinLayout = new GraphiteWinLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
             }
             else
+#endif // ENABLE_GRAPHITE
             {
+                // script complexity is determined in upper layers
                 pWinLayout = new UniscribeLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
                 // NOTE: it must be guaranteed that the WinSalGraphics lives longer than
                 // the created UniscribeLayout, otherwise the data passed into the
                 // constructor might become invalid too early
             }
         }
-    }
+        else
+        {
+#if ENABLE_GRAPHITE
+            if (rFontFace.SupportsGraphite())
+            {
+                pWinLayout = new GraphiteWinLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
+            }
+            else
+#endif // ENABLE_GRAPHITE
+            {
+                static bool bAvoidSimpleWinLayout = (std::getenv("VCL_NO_SIMPLEWINLAYOUT") != NULL);
+
+                if (!bAvoidSimpleWinLayout)
+                {
+                    if( (rArgs.mnFlags & SalLayoutFlags::KerningPairs) && !rFontInstance.HasKernData() )
+                    {
+                        // TODO: directly cache kerning info in the rFontInstance
+                        // TODO: get rid of kerning methods+data in WinSalGraphics object
+                        GetKernPairs();
+                        rFontInstance.SetKernData( mnFontKernPairCount, mpFontKernPairs );
+                    }
+
+                    pWinLayout = new SimpleWinLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
+                }
+                else
+                {
+                    pWinLayout = new UniscribeLayout(getHDC(), rFontFace, rFontInstance, bUseOpenGL);
+                    // NOTE: it must be guaranteed that the WinSalGraphics lives longer than
+                    // the created UniscribeLayout, otherwise the data passed into the
+                    // constructor might become invalid too early
+                }
+            }
+        }
 
-    if( mfFontScale[nFallbackLevel] != 1.0 )
-        pWinLayout->SetFontScale( mfFontScale[nFallbackLevel] );
+        if( mfFontScale[nFallbackLevel] != 1.0 )
+            pWinLayout->SetFontScale( mfFontScale[nFallbackLevel] );
 
-    return pWinLayout;
+        return pWinLayout;
+    }
 }
 
 int    WinSalGraphics::GetMinKashidaWidth()
@@ -4147,4 +4155,32 @@ LogicalFontInstance* WinFontFace::CreateFontInstance( FontSelectPattern& rFSD )
     return pFontInstance;
 }
 
+void WinSalGraphics::DrawSalLayout( const CommonSalLayout& rLayout )
+{
+    HDC hDC = getHDC();
+
+    if((std::getenv("SAL_DWRITE_COMMON_LAYOUT")))
+    {
+        Point aPos(0, 0);
+        int nGlyphCount(0);
+        TextOutRenderer &render = TextOutRenderer::get();
+        bool result = render( rLayout, hDC, nullptr, &aPos, &nGlyphCount );
+        assert( !result );
+    }
+    else
+    {
+        Point aPos;
+        sal_GlyphId aGlyphId;
+        int nFetchedGlyphs = 0;
+        UINT oldTa = GetTextAlign( hDC );
+        SetTextAlign( hDC, ( oldTa & ~TA_NOUPDATECP ) );
+        while( rLayout.GetNextGlyphs( 1, &aGlyphId, aPos, nFetchedGlyphs ) )
+        {
+            ExtTextOutW( hDC, aPos.X(), aPos.Y(), ETO_GLYPH_INDEX, nullptr, reinterpret_cast<LPCWSTR>( &aGlyphId ),
+                         1, nullptr);
+        }
+        SetTextAlign(hDC, oldTa);
+    }
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
commit 8a8e797c746eb05aae2f4831fdf45ea7c639a439
Author: Akash Jain <akash96j at gmail.com>
Date:   Wed Jul 6 10:35:24 2016 +0530

    GSoC: Integrate new CommonSalLayout in unx/ code
    
    Change-Id: I991cb5cbd2adad4f4c9f62f807990b9fde2a5133

diff --git a/vcl/README.vars b/vcl/README.vars
index bf85485..b72d499 100644
--- a/vcl/README.vars
+++ b/vcl/README.vars
@@ -6,6 +6,7 @@ SAL_USE_VCLPLUGIN - use a VCL plugin
 SAL_NO_NWF - disable native widgets
 SAL_FORCEDPI - force a specific DPI (gtk & gtk3 plugins only)
 SAL_FORCE_HC - force high-contrast mode
+SAL_USE_COMMON_LAYOUT - use CommonSalLayout layout engine for text layout
 
 VCL_DOUBLEBUFFERING_AVOID_PAINT - don't paint the buffer, useful to see where we do direct painting
 VCL_DOUBLEBUFFERING_FORCE_ENABLE - enable double buffered painting
diff --git a/vcl/unx/generic/gdi/cairotextrender.cxx b/vcl/unx/generic/gdi/cairotextrender.cxx
index 372cd4d..6dabc15 100644
--- a/vcl/unx/generic/gdi/cairotextrender.cxx
+++ b/vcl/unx/generic/gdi/cairotextrender.cxx
@@ -42,6 +42,7 @@
 
 #include <cairo.h>
 #include <cairo-ft.h>
+#include "CommonSalLayout.hxx"
 
 namespace {
 
@@ -540,7 +541,14 @@ SalLayout* CairoTextRender::GetTextLayout( ImplLayoutArgs& rArgs, int nFallbackL
         }
         else
 #endif
-            pLayout = new ServerFontLayout( *mpServerFont[ nFallbackLevel ] );
+            if(getenv("SAL_USE_COMMON_LAYOUT"))
+            {
+                pLayout = new CommonSalLayout( *mpServerFont[ nFallbackLevel ] );
+            }
+            else
+            {
+                pLayout = new ServerFontLayout( *mpServerFont[ nFallbackLevel ] );
+            }
     }
 
     return pLayout;
commit 109552d6ff0e2b8c9169b5e8daacbff88f27ca40
Author: Akash Jain <akash96j at gmail.com>
Date:   Wed Jul 6 10:15:49 2016 +0530

    GSoC: Modify DrawServerFontLayout and add DrawSalLayout
    
    Modify the definiton of the DrawServerFontLayout method.
    Add new DrawSalLayout method which will be used for drawing text
    independent of the platform.
    
    Change-Id: Ie3eefb172b1781c685def1ef549db2538f672a62

diff --git a/vcl/headless/svptext.cxx b/vcl/headless/svptext.cxx
index 5202109..494cada 100644
--- a/vcl/headless/svptext.cxx
+++ b/vcl/headless/svptext.cxx
@@ -23,6 +23,7 @@
 #include "headless/svpgdi.hxx"
 #include <config_cairo_canvas.h>
 #include "impfontmetricdata.hxx"
+#include "CommonSalLayout.hxx"
 
 void SvpSalGraphics::SetFont( FontSelectPattern* pIFSD, int nFallbackLevel )
 {
@@ -116,9 +117,14 @@ SalLayout* SvpSalGraphics::GetTextLayout( ImplLayoutArgs& rArgs, int nFallbackLe
     return m_aTextRenderImpl.GetTextLayout(rArgs, nFallbackLevel);
 }
 
-void SvpSalGraphics::DrawServerFontLayout( const ServerFontLayout& rSalLayout )
+void SvpSalGraphics::DrawServerFontLayout( const GenericSalLayout& rSalLayout, const ServerFont& rServerFont )
 {
-    m_aTextRenderImpl.DrawServerFontLayout(rSalLayout );
+    m_aTextRenderImpl.DrawServerFontLayout( rSalLayout, rServerFont );
+}
+
+void SvpSalGraphics::DrawSalLayout( const CommonSalLayout& rSalLayout )
+{
+    DrawServerFontLayout( rSalLayout, rSalLayout.getFontData() );
 }
 
 void SvpSalGraphics::SetTextColor( SalColor nSalColor )
diff --git a/vcl/inc/headless/svpgdi.hxx b/vcl/inc/headless/svpgdi.hxx
index 7d11138..ef723da 100644
--- a/vcl/inc/headless/svpgdi.hxx
+++ b/vcl/inc/headless/svpgdi.hxx
@@ -166,7 +166,8 @@ public:
     virtual bool            GetGlyphBoundRect( sal_GlyphId nIndex, Rectangle& ) override;
     virtual bool            GetGlyphOutline( sal_GlyphId nIndex, basegfx::B2DPolyPolygon& ) override;
     virtual SalLayout*      GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) override;
-    virtual void            DrawServerFontLayout( const ServerFontLayout& ) override;
+    virtual void            DrawSalLayout( const CommonSalLayout& ) override;
+    virtual void            DrawServerFontLayout( const GenericSalLayout&, const ServerFont& ) override;
     virtual bool            supportsOperation( OutDevSupportType ) const override;
     virtual void            drawPixel( long nX, long nY ) override;
     virtual void            drawPixel( long nX, long nY, SalColor nSalColor ) override;
diff --git a/vcl/inc/quartz/salgdi.h b/vcl/inc/quartz/salgdi.h
index 0f5c9f5..77a8f5a 100644
--- a/vcl/inc/quartz/salgdi.h
+++ b/vcl/inc/quartz/salgdi.h
@@ -50,6 +50,7 @@ class AquaSalFrame;
 class FontAttributes;
 class CoreTextStyle;
 class XorEmulation;
+class CommonSalLayout;
 
 typedef sal_uInt32 sal_GlyphId;
 
@@ -402,7 +403,8 @@ public:
     virtual bool            GetGlyphOutline( sal_GlyphId, basegfx::B2DPolyPolygon& ) override;
 
     virtual SalLayout*      GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) override;
-    virtual void            DrawServerFontLayout( const ServerFontLayout& ) override;
+    virtual void            DrawSalLayout( const CommonSalLayout& ) override;
+    virtual void            DrawServerFontLayout( const GenericSalLayout&, const ServerFont& ) {};
     virtual bool            supportsOperation( OutDevSupportType ) const override;
 
 #ifdef MACOSX
diff --git a/vcl/inc/salgdi.hxx b/vcl/inc/salgdi.hxx
index 0a151d2..5bab4e8 100644
--- a/vcl/inc/salgdi.hxx
+++ b/vcl/inc/salgdi.hxx
@@ -43,7 +43,8 @@ class Rectangle;
 class FontSubsetInfo;
 class OpenGLContext;
 class OutputDevice;
-class ServerFontLayout;
+class ServerFont;
+class CommonSalLayout;
 struct SystemGraphicsData;
 
 #if ENABLE_CAIRO_CANVAS
@@ -216,7 +217,8 @@ public:
     virtual bool                GetGlyphOutline( sal_GlyphId, basegfx::B2DPolyPolygon& ) = 0;
 
     virtual SalLayout*          GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) = 0;
-    virtual void                DrawServerFontLayout( const ServerFontLayout& ) = 0;
+    virtual void                DrawSalLayout( const CommonSalLayout& ) = 0;
+    virtual void                DrawServerFontLayout( const GenericSalLayout&, const ServerFont& ) = 0;
 
     virtual bool                supportsOperation( OutDevSupportType ) const = 0;
 
diff --git a/vcl/inc/textrender.hxx b/vcl/inc/textrender.hxx
index 70fc9d2..5c4335e 100644
--- a/vcl/inc/textrender.hxx
+++ b/vcl/inc/textrender.hxx
@@ -26,7 +26,6 @@
 
 class ImplLayoutArgs;
 class ImplFontMetricData;
-class ServerFontLayout;
 class PhysicalFontCollection;
 class PhysicalFontFace;
 
@@ -71,7 +70,7 @@ public:
     virtual bool                    GetGlyphBoundRect( sal_GlyphId nIndex, Rectangle& ) = 0;
     virtual bool                    GetGlyphOutline( sal_GlyphId nIndex, basegfx::B2DPolyPolygon& ) = 0;
     virtual SalLayout*              GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) = 0;
-    virtual void                    DrawServerFontLayout( const ServerFontLayout& ) = 0;
+    virtual void                    DrawServerFontLayout( const GenericSalLayout&, const ServerFont& ) = 0;
 #if ENABLE_CAIRO_CANVAS
     virtual SystemFontData          GetSysFontData( int nFallbackLevel ) const = 0;
 #endif // ENABLE_CAIRO_CANVAS
diff --git a/vcl/inc/unx/cairotextrender.hxx b/vcl/inc/unx/cairotextrender.hxx
index 5cb39d3..2eb87df 100644
--- a/vcl/inc/unx/cairotextrender.hxx
+++ b/vcl/inc/unx/cairotextrender.hxx
@@ -88,7 +88,7 @@ public:
     virtual bool                GetGlyphBoundRect( sal_GlyphId nIndex, Rectangle& ) override;
     virtual bool                GetGlyphOutline( sal_GlyphId nIndex, basegfx::B2DPolyPolygon& ) override;
     virtual SalLayout*          GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) override;
-    virtual void                DrawServerFontLayout( const ServerFontLayout& ) override;
+    virtual void                DrawServerFontLayout( const GenericSalLayout&, const ServerFont& ) override;
 #if ENABLE_CAIRO_CANVAS
     virtual SystemFontData      GetSysFontData( int nFallbackLevel ) const override;
 #endif
diff --git a/vcl/inc/unx/genpspgraphics.h b/vcl/inc/unx/genpspgraphics.h
index 9810d5d..90da3d3 100644
--- a/vcl/inc/unx/genpspgraphics.h
+++ b/vcl/inc/unx/genpspgraphics.h
@@ -34,6 +34,7 @@ class PhysicalFontCollection;
 namespace psp { struct JobData; class PrinterGfx; }
 
 class ServerFont;
+class ServerFontLayout;
 class FontAttributes;
 class SalInfoPrinter;
 class GlyphCache;
@@ -131,7 +132,8 @@ public:
     virtual bool            GetGlyphBoundRect( sal_GlyphId, Rectangle& ) override;
     virtual bool            GetGlyphOutline( sal_GlyphId, basegfx::B2DPolyPolygon& ) override;
     virtual SalLayout*      GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) override;
-    virtual void            DrawServerFontLayout( const ServerFontLayout& ) override;
+    virtual void            DrawSalLayout( const CommonSalLayout& ) {};
+    virtual void            DrawServerFontLayout( const GenericSalLayout&, const ServerFont& );
     virtual bool            supportsOperation( OutDevSupportType ) const override;
     virtual void            drawPixel( long nX, long nY ) override;
     virtual void            drawPixel( long nX, long nY, SalColor nSalColor ) override;
diff --git a/vcl/inc/unx/salgdi.h b/vcl/inc/unx/salgdi.h
index 803c75a..e464eca 100644
--- a/vcl/inc/unx/salgdi.h
+++ b/vcl/inc/unx/salgdi.h
@@ -154,7 +154,8 @@ public:
     virtual bool                    GetGlyphBoundRect( sal_GlyphId nIndex, Rectangle& ) override;
     virtual bool                    GetGlyphOutline( sal_GlyphId nIndex, basegfx::B2DPolyPolygon& ) override;
     virtual SalLayout*              GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) override;
-    virtual void                    DrawServerFontLayout( const ServerFontLayout& ) override;
+    virtual void                    DrawSalLayout( const CommonSalLayout& ) override;
+    virtual void                    DrawServerFontLayout( const GenericSalLayout&, const ServerFont& ) override;
 
     virtual bool                    supportsOperation( OutDevSupportType ) const override;
     virtual void                    drawPixel( long nX, long nY ) override;
diff --git a/vcl/inc/win/salgdi.h b/vcl/inc/win/salgdi.h
index 291dc08..2defd7f 100644
--- a/vcl/inc/win/salgdi.h
+++ b/vcl/inc/win/salgdi.h
@@ -52,6 +52,7 @@ class PhysicalFontCollection;
 class SalGraphicsImpl;
 class WinOpenGLSalGraphicsImpl;
 class ImplFontMetricData;
+class CommonSalLayout;
 
 #define RGB_TO_PALRGB(nRGB)         ((nRGB)|0x02000000)
 #define PALRGB_TO_RGB(nPalRGB)      ((nPalRGB)&0x00ffffff)
@@ -450,7 +451,8 @@ public:
     virtual bool            GetGlyphOutline( sal_GlyphId, basegfx::B2DPolyPolygon& ) override;
 
     virtual SalLayout*      GetTextLayout( ImplLayoutArgs&, int nFallbackLevel ) override;
-    virtual void            DrawServerFontLayout( const ServerFontLayout& ) override;
+    virtual void            DrawSalLayout( const CommonSalLayout& ) override;
+    virtual void            DrawServerFontLayout( const GenericSalLayout&, const ServerFont& ) {};
 
     virtual bool            supportsOperation( OutDevSupportType ) const override;
     // Query the platform layer for control support
diff --git a/vcl/quartz/salgdi.cxx b/vcl/quartz/salgdi.cxx
index 0d39e96..d0f73a8 100644
--- a/vcl/quartz/salgdi.cxx
+++ b/vcl/quartz/salgdi.cxx
@@ -41,6 +41,7 @@
 #include "impfont.hxx"
 #include "impfontcharmap.hxx"
 #include "impfontmetricdata.hxx"
+#include "CommonSalLayout.hxx"
 
 #ifdef MACOSX
 #include "osx/salframe.h"
@@ -413,7 +414,7 @@ bool AquaSalGraphics::GetGlyphBoundRect( sal_GlyphId aGlyphId, Rectangle& rRect
     return bRC;
 }
 
-void AquaSalGraphics::DrawServerFontLayout( const ServerFontLayout& )
+void AquaSalGraphics::DrawSalLayout( const CommonSalLayout& )
 {
 }
 
diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
index f7fd257..f19bcdd 100644
--- a/vcl/source/gdi/CommonSalLayout.cxx
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -221,9 +221,10 @@ void CommonSalLayout::AdjustLayout(ImplLayoutArgs& rArgs)
     }
 }
 
-void CommonSalLayout::DrawText( SalGraphics& ) const
+void CommonSalLayout::DrawText( SalGraphics& rSalGraphics ) const
 {
     //call platform dependent DrawText functions
+    rSalGraphics.DrawSalLayout( *this );
 }
 
 bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
diff --git a/vcl/unx/generic/gdi/cairotextrender.cxx b/vcl/unx/generic/gdi/cairotextrender.cxx
index f697a0c..372cd4d 100644
--- a/vcl/unx/generic/gdi/cairotextrender.cxx
+++ b/vcl/unx/generic/gdi/cairotextrender.cxx
@@ -186,7 +186,7 @@ namespace
     }
 }
 
-void CairoTextRender::DrawServerFontLayout( const ServerFontLayout& rLayout )
+void CairoTextRender::DrawServerFontLayout( const GenericSalLayout& rLayout, const ServerFont& rFont )
 {
     std::vector<cairo_glyph_t> cairo_glyphs;
     std::vector<int> glyph_extrarotation;
@@ -219,7 +219,6 @@ void CairoTextRender::DrawServerFontLayout( const ServerFontLayout& rLayout )
     if (cairo_glyphs.empty())
         return;
 
-    ServerFont& rFont = rLayout.GetServerFont();
     const FontSelectPattern& rFSD = rFont.GetFontSelData();
     int nHeight = rFSD.mnHeight;
     int nWidth = rFSD.mnWidth ? rFSD.mnWidth : nHeight;
diff --git a/vcl/unx/generic/gdi/font.cxx b/vcl/unx/generic/gdi/font.cxx
index 36c7ecb..7353e24 100644
--- a/vcl/unx/generic/gdi/font.cxx
+++ b/vcl/unx/generic/gdi/font.cxx
@@ -24,6 +24,7 @@
 #include "unx/salgdi.h"
 #include "unx/salvd.h"
 #include "textrender.hxx"
+#include "CommonSalLayout.hxx"
 
 GC
 X11SalGraphics::GetFontGC()
@@ -52,9 +53,14 @@ X11SalGraphics::GetFontGC()
     return pFontGC_;
 }
 
-void X11SalGraphics::DrawServerFontLayout( const ServerFontLayout& rLayout )
+void X11SalGraphics::DrawServerFontLayout( const GenericSalLayout& rLayout, const ServerFont& rServerFont )
 {
-    mxTextRenderImpl->DrawServerFontLayout(rLayout);
+    mxTextRenderImpl->DrawServerFontLayout(rLayout, rServerFont);
+}
+
+void X11SalGraphics::DrawSalLayout( const CommonSalLayout& rLayout )
+{
+    DrawServerFontLayout( rLayout, rLayout.getFontData() );
 }
 
 const FontCharMapRef X11SalGraphics::GetFontCharMap() const
diff --git a/vcl/unx/generic/glyphs/gcach_layout.cxx b/vcl/unx/generic/glyphs/gcach_layout.cxx
index 38d7e84..3e326cf 100644
--- a/vcl/unx/generic/glyphs/gcach_layout.cxx
+++ b/vcl/unx/generic/glyphs/gcach_layout.cxx
@@ -22,6 +22,7 @@
 #include <salgdi.hxx>
 #include <scrptrun.h>
 #include <limits>
+#include <unx/genpspgraphics.h>
 
 #include <i18nlangtag/mslangid.hxx>
 
@@ -47,7 +48,7 @@ ServerFontLayout::ServerFontLayout( ServerFont& rFont )
 
 void ServerFontLayout::DrawText( SalGraphics& rSalGraphics ) const
 {
-    rSalGraphics.DrawServerFontLayout( *this );
+    rSalGraphics.DrawServerFontLayout( *this, mrServerFont );
 }
 
 bool ServerFontLayout::LayoutText( ImplLayoutArgs& rArgs )
diff --git a/vcl/unx/generic/print/genpspgraphics.cxx b/vcl/unx/generic/print/genpspgraphics.cxx
index 9695e97..9e65be6 100644
--- a/vcl/unx/generic/print/genpspgraphics.cxx
+++ b/vcl/unx/generic/print/genpspgraphics.cxx
@@ -761,7 +761,7 @@ void PspFontLayout::DrawText( SalGraphics& ) const
     DrawPrinterLayout( *this, mrPrinterGfx, false );
 }
 
-void GenPspGraphics::DrawServerFontLayout( const ServerFontLayout& rLayout )
+void GenPspGraphics::DrawServerFontLayout( const GenericSalLayout& rLayout, const ServerFont& /*unused*/ )
 {
     // print complex text
     DrawPrinterLayout( rLayout, *m_pPrinterGfx, true );
diff --git a/vcl/win/gdi/salfont.cxx b/vcl/win/gdi/salfont.cxx
index ad059c1..2eae16e 100644
--- a/vcl/win/gdi/salfont.cxx
+++ b/vcl/win/gdi/salfont.cxx
@@ -2612,7 +2612,7 @@ void WinSalGraphics::GetGlyphWidths( const PhysicalFontFace* pFont,
     }
 }
 
-void WinSalGraphics::DrawServerFontLayout( const ServerFontLayout& )
+void WinSalGraphics::DrawSalLayout( const CommonSalLayout& )
 {}
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
commit 0a5fa51582adc93a7a4a6d7907b8346c2ab76ae7
Author: Akash Jain <akash96j at gmail.com>
Date:   Tue Jun 14 14:52:16 2016 +0530

    GSoC: Modify HARFBUZZ_LIBS flag if compiling with MSVC
    
    MSVC has a different format for specifying libs to be linked.
    Therefore, modify libs flag accordingly.
    
    Change-Id: Ib919c4b6b0cdac47a8a6ad6730d20e19bc05b0d4

diff --git a/configure.ac b/configure.ac
index a940661..fd133c9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9355,6 +9355,9 @@ if test "$with_harfbuzz" = "yes" -o \( $_os != WINNT -a $_os != Darwin -a $_os !
     else
         libo_CHECK_SYSTEM_MODULE([harfbuzz],[HARFBUZZ],[harfbuzz >= 0.9.10],[-I${WORKDIR}/UnpackedTarball/harfbuzz/src],["-L${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs -lharfbuzz -lharfbuzz-icu"])
     fi
+    if test "$COM" = "MSC"; then # override the above
+        HARFBUZZ_LIBS="${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs/libharfbuzz.lib ${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs/libharfbuzz-icu.lib"
+    fi
 else
     AC_MSG_RESULT([no])
 fi
commit 83d5e7eb78592ec65208204315b21930a7f5a291
Author: Akash Jain <akash96j at gmail.com>
Date:   Tue Jun 14 14:38:12 2016 +0530

    GSoC: Add new CommonSalLayout class
    
    Change-Id: Ic11e573da2f5fd6ef931f53ab674f8894815c3b4

diff --git a/vcl/Library_vcl.mk b/vcl/Library_vcl.mk
index a0dfee3..67bcbe5 100644
--- a/vcl/Library_vcl.mk
+++ b/vcl/Library_vcl.mk
@@ -303,6 +303,7 @@ $(eval $(call gb_Library_add_exception_objects,vcl,\
     vcl/source/gdi/virdev \
     vcl/source/gdi/wall \
     vcl/source/gdi/scrptrun \
+    vcl/source/gdi/CommonSalLayout \
     vcl/source/bitmap/bitmapfilter \
     vcl/source/bitmap/bitmapscalesuper \
     vcl/source/bitmap/BitmapScaleConvolution \
diff --git a/vcl/inc/CommonSalLayout.hxx b/vcl/inc/CommonSalLayout.hxx
new file mode 100644
index 0000000..5a4c9a2
--- /dev/null
+++ b/vcl/inc/CommonSalLayout.hxx
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifdef _WIN32
+#include "win/winlayout.hxx"
+
+#elif defined(MACOSX) || defined(IOS)
+#include <com/sun/star/i18n/XBreakIterator.hpp>
+#include "quartz/ctfonts.hxx"
+
+#else
+#include "unx/freetype_glyphcache.hxx"
+#endif
+
+#include <sallayout.hxx>
+#include <hb-icu.h>
+#include <hb-ot.h>
+
+class CommonSalLayout : public GenericSalLayout
+{
+    hb_face_t* mpHbFace;
+    FontSelectPattern maFontSelData;
+    css::uno::Reference<css::i18n::XBreakIterator> mxBreak;
+#ifdef _WIN32
+    HDC   mhDC;
+    HFONT mhFont;
+#elif defined(MACOSX) || defined(IOS)
+    const CoreTextStyle& mrCoreTextStyle;
+#else
+    ServerFont& mrServerFont;
+#endif
+
+    hb_font_t*              GetHbFont();
+public:
+#if defined(_WIN32)
+    explicit                CommonSalLayout(HDC, WinFontInstance&);
+    virtual void            InitFont() const override;
+#elif defined(MACOSX) || defined(IOS)
+    explicit                CommonSalLayout(const CoreTextStyle&);
+    const CoreTextStyle&    getFontData() const { return mrCoreTextStyle; };
+#else
+    explicit                CommonSalLayout(ServerFont&);
+    const ServerFont&       getFontData() const { return mrServerFont; };
+#endif
+
+    virtual                 ~CommonSalLayout();
+    void                    SetNeedFallback(ImplLayoutArgs&, sal_Int32, bool);
+    void                    AdjustLayout(ImplLayoutArgs&) override;
+    virtual bool            LayoutText(ImplLayoutArgs&) override;
+    virtual void            DrawText( SalGraphics& ) const override;
+    std::shared_ptr<vcl::TextLayoutCache> CreateTextLayoutCache(OUString const&) const override;
+};
diff --git a/vcl/inc/quartz/salgdi.h b/vcl/inc/quartz/salgdi.h
index 7589641..0f5c9f5 100644
--- a/vcl/inc/quartz/salgdi.h
+++ b/vcl/inc/quartz/salgdi.h
@@ -103,6 +103,7 @@ public:
     float               mfFontStretch;
     /// text rotation in radian
     float               mfFontRotation;
+    FontSelectPattern   maFontSelData;
 
 private:
     /// CoreText text style object
diff --git a/vcl/quartz/ctfonts.cxx b/vcl/quartz/ctfonts.cxx
index bd2ab4f..36b155d 100644
--- a/vcl/quartz/ctfonts.cxx
+++ b/vcl/quartz/ctfonts.cxx
@@ -48,6 +48,7 @@ CoreTextStyle::CoreTextStyle( const FontSelectPattern& rFSD )
     : mpFontData( static_cast<CoreTextFontFace const *>(rFSD.mpFontData) )
     , mfFontStretch( 1.0 )
     , mfFontRotation( 0.0 )
+    , maFontSelData( rFSD )
     , mpStyleDict( nullptr )
 {
     const FontSelectPattern* const pReqFont = &rFSD;
diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
new file mode 100644
index 0000000..f7fd257
--- /dev/null
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -0,0 +1,405 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "CommonSalLayout.hxx"
+
+#include <vcl/unohelp.hxx>
+#include <scrptrun.h>
+#include <com/sun/star/i18n/CharacterIteratorMode.hpp>
+#include <i18nlangtag/mslangid.hxx>
+#include <limits>
+#include <salgdi.hxx>
+
+static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pUserData)
+{
+    char pTagName[5];
+    pTagName[0] = (char)(nTableTag >> 24);
+    pTagName[1] = (char)(nTableTag >> 16);
+    pTagName[2] = (char)(nTableTag >>  8);
+    pTagName[3] = (char)(nTableTag);
+    pTagName[4] = 0;
+
+    sal_uLong nLength=0;
+#if defined(_WIN32)
+    const unsigned char* pBuffer = nullptr;
+    HDC* phDC = static_cast<HDC*>(pUserData);
+    nLength = WinFontFace::GetTable(pTagName, pBuffer, *phDC);
+#elif defined(MACOSX) || defined(IOS)
+    unsigned char* pBuffer = nullptr;
+    CoreTextFontFace* pFont = static_cast<CoreTextFontFace*>(pUserData);
+    nLength = pFont->GetFontTable(pTagName, nullptr);
+    if( nLength>0 )
+    {
+        pBuffer = new unsigned char[nLength];
+    }
+    pFont->GetFontTable(pTagName, pBuffer);
+#else
+    const unsigned char* pBuffer = nullptr;
+    ServerFont* pFont = static_cast<ServerFont*>(pUserData);
+    pBuffer = pFont->GetTable(pTagName, &nLength);
+#endif
+
+    hb_blob_t* pBlob = nullptr;
+    if (pBuffer != nullptr)
+        pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY, nullptr, nullptr);
+
+    return pBlob;
+}
+
+static hb_unicode_funcs_t* getUnicodeFuncs()
+{
+    static hb_unicode_funcs_t* ufuncs = hb_unicode_funcs_create(hb_icu_get_unicode_funcs());
+#if !HB_VERSION_ATLEAST(1, 1, 0)
+    hb_unicode_funcs_set_decompose_compatibility_func(ufuncs, unicodeDecomposeCompatibility, nullptr, nullptr);
+#endif
+    return ufuncs;
+}
+
+#if defined(_WIN32)
+CommonSalLayout::CommonSalLayout(HDC hDC, WinFontInstance& rWinFontInstance)
+:   mhDC(hDC),
+    mpHbFace(nullptr),
+    maFontSelData(rWinFontInstance.maFontSelData)
+{
+    mpHbFace = hb_face_create_for_tables(getFontTable, &hDC, nullptr);
+}
+
+#elif defined(MACOSX) || defined(IOS)
+CommonSalLayout::CommonSalLayout(const CoreTextStyle& rCoreTextStyle)
+:   mpHbFace(nullptr),
+    maFontSelData(rCoreTextStyle.maFontSelData),
+    mrCoreTextStyle(rCoreTextStyle)
+{
+    mpHbFace = hb_face_create_for_tables(getFontTable, const_cast<CoreTextFontFace*>(rCoreTextStyle.mpFontData), nullptr);
+}
+
+#else
+CommonSalLayout::CommonSalLayout(ServerFont& rServerFont)
+:   mpHbFace(nullptr),
+    maFontSelData(rServerFont.GetFontSelData()),
+    mrServerFont(rServerFont)
+{
+    mpHbFace = hb_face_create_for_tables(getFontTable, &rServerFont, nullptr);
+}
+#endif
+
+CommonSalLayout::~CommonSalLayout()
+{
+    hb_face_destroy(mpHbFace);
+}
+
+hb_font_t* CommonSalLayout::GetHbFont()
+{
+    // HACK. TODO: Get rid of HACK
+#if defined(_WIN32)
+    if(maFontSelData.mnWidth)
+        maFontSelData.mnWidth = (double)maFontSelData.mnWidth*1.812;
+#endif
+
+    hb_font_t* pHbFont = hb_font_create(mpHbFace);
+    hb_font_set_ppem(pHbFont, maFontSelData.mnWidth? maFontSelData.mnWidth:maFontSelData.mnHeight , maFontSelData.mnHeight);
+    hb_font_set_scale(pHbFont, (uint64_t)(maFontSelData.mnWidth? maFontSelData.mnWidth:maFontSelData.mnHeight) << 6
+                             , (uint64_t)maFontSelData.mnHeight << 6);
+    hb_ot_font_set_funcs(pHbFont);
+    return pHbFont;
+}
+
+struct HbScriptRun
+{
+    int32_t mnMin;
+    int32_t mnEnd;
+    hb_script_t maScript;
+
+    HbScriptRun(int32_t nMin, int32_t nEnd, UScriptCode aScript)
+    : mnMin(nMin), mnEnd(nEnd),
+      maScript(hb_icu_script_to_script(aScript))
+    {}
+};
+
+typedef std::vector<HbScriptRun> HbScriptRuns;
+
+namespace vcl {
+    struct Run
+    {
+        int32_t nStart;
+        int32_t nEnd;
+        UScriptCode nCode;
+        Run(int32_t nStart_, int32_t nEnd_, UScriptCode nCode_)
+            : nStart(nStart_), nEnd(nEnd_), nCode(nCode_)
+        {}
+    };
+
+    class TextLayoutCache
+    {
+    public:
+        std::vector<vcl::Run> runs;
+        TextLayoutCache(sal_Unicode const* pStr, sal_Int32 const nEnd)
+        {
+            vcl::ScriptRun aScriptRun(
+                reinterpret_cast<const UChar *>(pStr),
+                nEnd);
+            while (aScriptRun.next())
+            {
+                runs.push_back(Run(aScriptRun.getScriptStart(),
+                    aScriptRun.getScriptEnd(), aScriptRun.getScriptCode()));
+            }
+        }
+    };
+}
+
+std::shared_ptr<vcl::TextLayoutCache> CommonSalLayout::CreateTextLayoutCache(OUString const& rString) const
+{
+    return std::make_shared<vcl::TextLayoutCache>(rString.getStr(), rString.getLength());
+}
+
+void CommonSalLayout::SetNeedFallback(ImplLayoutArgs& rArgs, sal_Int32 nCharPos, bool bRightToLeft)
+{
+    if (nCharPos < 0)
+        return;
+
+    using namespace ::com::sun::star;
+
+    if (!mxBreak.is())
+        mxBreak = vcl::unohelper::CreateBreakIterator();
+
+    lang::Locale aLocale(rArgs.maLanguageTag.getLocale());
+
+    //if position nCharPos is missing in the font, grab the entire grapheme and
+    //mark all glyphs as missing so the whole thing is rendered with the same
+    //font
+    sal_Int32 nDone;
+    sal_Int32 nGraphemeStartPos =
+        mxBreak->previousCharacters(rArgs.mrStr, nCharPos+1, aLocale,
+            i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
+    sal_Int32 nGraphemeEndPos =
+        mxBreak->nextCharacters(rArgs.mrStr, nCharPos, aLocale,
+            i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
+
+    rArgs.NeedFallback(nGraphemeStartPos, nGraphemeEndPos, bRightToLeft);
+}
+
+void CommonSalLayout::AdjustLayout(ImplLayoutArgs& rArgs)
+{
+    GenericSalLayout::AdjustLayout(rArgs);
+
+    // apply asian kerning if the glyphs are not already formatted
+    if( (rArgs.mnFlags & SalLayoutFlags::KerningAsian)
+    && !(rArgs.mnFlags & SalLayoutFlags::Vertical) )
+        if( (rArgs.mpDXArray != nullptr) || (rArgs.mnLayoutWidth != 0) )
+            ApplyAsianKerning(rArgs.mrStr);
+
+    if((rArgs.mnFlags & SalLayoutFlags::KashidaJustification) && rArgs.mpDXArray)
+    {
+        hb_font_t* pHbFont = GetHbFont();
+        hb_codepoint_t nKashidaCodePoint = 0x0640;
+        hb_codepoint_t nKashidaGlyphIndex;
+
+        if(hb_font_get_glyph(pHbFont, nKashidaCodePoint, 0, &nKashidaGlyphIndex))
+        {
+            if(nKashidaGlyphIndex)
+            {
+                KashidaJustify(nKashidaGlyphIndex, hb_font_get_glyph_h_advance(pHbFont, nKashidaGlyphIndex) >> 6);
+            }
+        }
+        hb_font_destroy(pHbFont);
+    }
+}
+
+void CommonSalLayout::DrawText( SalGraphics& ) const
+{
+    //call platform dependent DrawText functions
+}
+
+bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
+{
+    hb_font_t* pHbFont = GetHbFont();
+    hb_script_t aHbScript = HB_SCRIPT_INVALID;
+
+    int nGlyphCapacity = 2 * (rArgs.mnEndCharPos - rArgs.mnMinCharPos);
+    Reserve(nGlyphCapacity);
+
+    const int nLength = rArgs.mrStr.getLength();
+    const sal_Unicode *pStr = rArgs.mrStr.getStr();
+
+    std::unique_ptr<vcl::TextLayoutCache> pNewScriptRun;
+    vcl::TextLayoutCache const* pTextLayout;
+    if (rArgs.m_pTextLayoutCache)
+    {
+        pTextLayout = rArgs.m_pTextLayoutCache; // use cache!
+    }
+    else
+    {
+        pNewScriptRun.reset(new vcl::TextLayoutCache(pStr, rArgs.mnEndCharPos));
+        pTextLayout = pNewScriptRun.get();
+    }
+
+    Point aCurrPos(0, 0);
+    while (true)
+    {
+        int nBidiMinRunPos, nBidiEndRunPos;
+        bool bRightToLeft;
+        if (!rArgs.GetNextRun(&nBidiMinRunPos, &nBidiEndRunPos, &bRightToLeft))
+            break;
+
+        // Find script subruns.
+        int nCurrentPos = nBidiMinRunPos;
+        HbScriptRuns aScriptSubRuns;
+        size_t k = 0;
+        for (; k < pTextLayout->runs.size(); ++k)
+        {
+            vcl::Run const& rRun(pTextLayout->runs[k]);
+            if (rRun.nStart <= nCurrentPos && nCurrentPos < rRun.nEnd)
+            {
+                break;
+            }
+        }
+
+        while (nCurrentPos < nBidiEndRunPos && k < pTextLayout->runs.size())
+        {
+            int32_t nMinRunPos = nCurrentPos;
+            int32_t nEndRunPos = std::min(pTextLayout->runs[k].nEnd, nBidiEndRunPos);
+            HbScriptRun aRun(nMinRunPos, nEndRunPos, pTextLayout->runs[k].nCode);
+            aScriptSubRuns.push_back(aRun);
+
+            nCurrentPos = nEndRunPos;
+            ++k;
+        }
+
+        // RTL subruns should be reversed to ensure that final glyph order is
+        // correct.
+        if (bRightToLeft)
+            std::reverse(aScriptSubRuns.begin(), aScriptSubRuns.end());
+
+        for (HbScriptRuns::iterator it = aScriptSubRuns.begin(); it != aScriptSubRuns.end(); ++it)
+        {
+            int nMinRunPos = it->mnMin;
+            int nEndRunPos = it->mnEnd;
+            int nRunLen = nEndRunPos - nMinRunPos;
+            aHbScript = it->maScript;
+            // hb_language_from_string() accept ISO639-3 language tag except for Chinese.
+            LanguageTag &rTag = rArgs.maLanguageTag;
+            OString sLanguage = OUStringToOString( MsLangId::isChinese(rTag.getLanguageType()) ? rTag.getBcp47():rTag.getLanguage() , RTL_TEXTENCODING_UTF8 );
+
+            int nHbFlags = HB_BUFFER_FLAGS_DEFAULT;
+            if (nMinRunPos == 0)
+                nHbFlags |= HB_BUFFER_FLAG_BOT; /* Beginning-of-text */
+            if (nEndRunPos == nLength)
+                nHbFlags |= HB_BUFFER_FLAG_EOT; /* End-of-text */
+
+            hb_buffer_t *pHbBuffer = hb_buffer_create();
+            static hb_unicode_funcs_t* pHbUnicodeFuncs = getUnicodeFuncs();
+#if !HB_VERSION_ATLEAST(1, 1, 0)
+            hb_buffer_set_unicode_funcs(pHbBuffer, pHbUnicodeFuncs);
+#endif
+            hb_buffer_set_direction(pHbBuffer, bRightToLeft ? HB_DIRECTION_RTL: HB_DIRECTION_LTR);
+            hb_buffer_set_script(pHbBuffer, aHbScript);
+            hb_buffer_set_language(pHbBuffer, hb_language_from_string(sLanguage.getStr(), -1));
+            hb_buffer_set_flags(pHbBuffer, (hb_buffer_flags_t) nHbFlags);
+            hb_buffer_add_utf16(
+                pHbBuffer, reinterpret_cast<uint16_t const *>(pStr), nLength,
+                nMinRunPos, nRunLen);
+#if HB_VERSION_ATLEAST(0, 9, 42)
+            hb_buffer_set_cluster_level(pHbBuffer, HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS);
+#endif
+            hb_shape(pHbFont, pHbBuffer, nullptr, 0);
+
+            int nRunGlyphCount = hb_buffer_get_length(pHbBuffer);
+            hb_glyph_info_t *pHbGlyphInfos = hb_buffer_get_glyph_infos(pHbBuffer, nullptr);
+            hb_glyph_position_t *pHbPositions = hb_buffer_get_glyph_positions(pHbBuffer, nullptr);
+
+            for (int i = 0; i < nRunGlyphCount; ++i) {
+                int32_t nGlyphIndex = pHbGlyphInfos[i].codepoint;
+                int32_t nCharPos = pHbGlyphInfos[i].cluster;
+
+                // if needed request glyph fallback by updating LayoutArgs
+                if (!nGlyphIndex)
+                {
+                    SetNeedFallback(rArgs, nCharPos, bRightToLeft);
+                    if (SalLayoutFlags::ForFallback & rArgs.mnFlags)
+                        continue;
+                }
+

... etc. - the rest is truncated


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