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authorTor Lillqvist <tml@collabora.com>2015-11-19 12:35:30 +0200
committerTor Lillqvist <tml@collabora.com>2015-11-19 12:57:00 +0200
commit04a65a85fee467477499276fd387c0c406ff7e98 (patch)
tree32ecd21cf6f4de34b533ca5a4bffb90e33555086
parentUse GLyphy for text on Windows (broken) (diff)
downloadcore-feature/glyphy.tar.gz
core-feature/glyphy.zip
Make using GLyphy optional at run-time feature/glyphy
Change-Id: I7053f16c25f5506d15ebc88f1b0465493dd35077
-rw-r--r--vcl/win/source/gdi/winlayout.cxx428
-rw-r--r--vcl/win/source/gdi/winlayout.hxx3
2 files changed, 409 insertions, 22 deletions
diff --git a/vcl/win/source/gdi/winlayout.cxx b/vcl/win/source/gdi/winlayout.cxx
index 5ae2ce4b4722..ec07be1ab889 100644
--- a/vcl/win/source/gdi/winlayout.cxx
+++ b/vcl/win/source/gdi/winlayout.cxx
@@ -66,6 +66,27 @@ const int GLYPH_SPACE_RATIO = 8;
const int GLYPH_OFFSET_RATIO = GLYPH_SPACE_RATIO * 2;
}
+struct OpenGLGlyphCacheChunk
+{
+ WORD mnFirstGlyph;
+ int mnGlyphCount;
+ std::vector<Rectangle> maLocation;
+ std::shared_ptr<OpenGLTexture> mpTexture;
+ int mnAscent;
+ int mnHeight;
+ bool mbVertical;
+
+ int getExtraSpace() const
+ {
+ return std::max(mnHeight / GLYPH_SPACE_RATIO, 4);
+ }
+
+ int getExtraOffset() const
+ {
+ return std::max(mnHeight / GLYPH_OFFSET_RATIO, 2);
+ }
+};
+
// win32 specific physical font instance
class ImplWinFontEntry : public ImplFontEntry
{
@@ -82,6 +103,7 @@ public:
{ return maScriptCache; }
private:
mutable SCRIPT_CACHE maScriptCache;
+ std::vector<OpenGLGlyphCacheChunk> maOpenGLGlyphCache;
public:
bool InitKashidaHandling( HDC );
@@ -92,6 +114,10 @@ public:
GLyphyDemo::demo_atlas_t* mpGLyphyAtlas;
GLyphyDemo::demo_font_t* mpGLyphyFont;
+ bool GlyphIsCached(int nGlyphIndex) const;
+ bool AddChunkOfGlyphs(int nGlyphIndex, const WinLayout& rLayout, SalGraphics& rGraphics);
+ const OpenGLGlyphCacheChunk& GetCachedGlyphChunkFor(int nGlyphIndex) const;
+
private:
mutable int mnMinKashidaWidth;
mutable int mnMinKashidaGlyph;
@@ -100,13 +126,128 @@ private:
GLuint ImplWinFontEntry::mnGLyphyProgram = 0;
-#if 0
+#ifdef SAL_LOG_INFO
-bool ImplWinFontEntry::AddGlyphToCache(WORD nGlyphIndex, const WinLayout& rLayout, SalGraphics& rGraphics)
+namespace {
+
+char ColorFor(COLORREF aColor)
+{
+ if (aColor == RGB(0xFF, 0xFF, 0xFF))
+ return ' ';
+ else if (aColor == RGB(0x00, 0x00, 0x00))
+ return 'X';
+
+ return '0' + (10*(GetRValue(aColor) + GetGValue(aColor) + GetBValue(aColor))) / (0xFF*3);
+}
+
+void DumpGlyphBitmap(HDC hDC)
+{
+ HBITMAP hBitmap = static_cast<HBITMAP>(GetCurrentObject(hDC, OBJ_BITMAP));
+ if (hBitmap == NULL)
+ {
+ SAL_WARN("vcl.gdi", "GetCurrentObject failed: " << WindowsErrorString(GetLastError()));
+ return;
+ }
+
+ BITMAP aBitmap;
+ if (!GetObjectW(hBitmap, sizeof(aBitmap), &aBitmap))
+ {
+ SAL_WARN("vcl.gdi", "GetObjectW failed: " << WindowsErrorString(GetLastError()));
+ return;
+ }
+
+ SAL_INFO("vcl.gdi.opengl", "Bitmap " << hBitmap << ": " << aBitmap.bmWidth << "x" << aBitmap.bmHeight << ":");
+
+ std::ostringstream sLine("\n");
+ for (long y = 0; y < aBitmap.bmHeight; y++)
+ {
+ for (long x = 0; x < std::min(75l, aBitmap.bmWidth); x++)
+ sLine << ColorFor(GetPixel(hDC, x, y));
+ if (y < aBitmap.bmHeight - 1)
+ sLine << "\n";
+ }
+ SAL_INFO("vcl.gdi.opengl", sLine.str());
+}
+
+} // anonymous namespace
+
+#endif // SAL_LOG_INFO
+
+template< typename charT, typename traits >
+inline std::basic_ostream<charT, traits> & operator <<(
+ std::basic_ostream<charT, traits> & stream, const std::vector<OpenGLGlyphCacheChunk>& rCache )
+{
+ stream << "{";
+ for (auto i = rCache.cbegin(); i != rCache.cend(); ++i)
+ {
+ stream << "[" << i->mnFirstGlyph;
+ if (i->mnGlyphCount > 1)
+ stream << ".." << (i->mnFirstGlyph + i->mnGlyphCount - 1);
+ stream << "]";
+ if (i+1 != rCache.cend())
+ {
+ stream << ",";
+ assert(i->mnFirstGlyph + i->mnGlyphCount <= (i+1)->mnFirstGlyph);
+ }
+ }
+
+ return stream << "}";
+}
+
+bool ImplWinFontEntry::GlyphIsCached(int nGlyphIndex) const
{
if (nGlyphIndex == DROPPED_OUTGLYPH)
return true;
+ for (size_t i = 0; i < maOpenGLGlyphCache.size(); i++)
+ if (nGlyphIndex >= maOpenGLGlyphCache[i].mnFirstGlyph &&
+ nGlyphIndex < maOpenGLGlyphCache[i].mnFirstGlyph + maOpenGLGlyphCache[i].mnGlyphCount)
+ return true;
+
+ return false;
+}
+
+bool ImplWinFontEntry::AddChunkOfGlyphs(int nGlyphIndex, const WinLayout& rLayout, SalGraphics& rGraphics)
+{
+ const int DEFAULT_CHUNK_SIZE = 20;
+
+ if (nGlyphIndex == DROPPED_OUTGLYPH)
+ return true;
+
+ SAL_INFO("vcl.gdi.opengl", "this=" << this << " " << nGlyphIndex << " old: " << maOpenGLGlyphCache);
+
+ auto n = maOpenGLGlyphCache.begin();
+ while (n != maOpenGLGlyphCache.end() &&
+ nGlyphIndex > n->mnFirstGlyph)
+ ++n;
+ assert(n == maOpenGLGlyphCache.end() || nGlyphIndex < n->mnFirstGlyph);
+
+ int nCount = DEFAULT_CHUNK_SIZE;
+ if (n != maOpenGLGlyphCache.end() && nGlyphIndex + nCount >= n->mnFirstGlyph)
+ nCount = n->mnFirstGlyph - nGlyphIndex;
+
+ if (nCount < DEFAULT_CHUNK_SIZE)
+ {
+ if (n == maOpenGLGlyphCache.begin())
+ {
+ nGlyphIndex = std::max(0, n->mnFirstGlyph - DEFAULT_CHUNK_SIZE);
+ }
+ else
+ {
+ nGlyphIndex = std::max(n[-1].mnFirstGlyph + n[-1].mnGlyphCount,
+ n->mnFirstGlyph - DEFAULT_CHUNK_SIZE);
+ }
+ nCount = n->mnFirstGlyph - nGlyphIndex;
+ }
+
+ OpenGLGlyphCacheChunk aChunk;
+ aChunk.mnFirstGlyph = nGlyphIndex;
+ aChunk.mnGlyphCount = nCount;
+
+ std::vector<WORD> aGlyphIndices(nCount);
+ for (int i = 0; i < nCount; i++)
+ aGlyphIndices[i] = nGlyphIndex + i;
+
HDC hDC = CreateCompatibleDC(rLayout.mhDC);
if (hDC == NULL)
{
@@ -123,7 +264,7 @@ bool ImplWinFontEntry::AddGlyphToCache(WORD nGlyphIndex, const WinLayout& rLayou
SIZE aSize;
- if (!GetTextExtentExPointI(hDC, &nGlyphIndex, 1, 0, NULL, NULL, &aSize))
+ if (!GetTextExtentExPointI(hDC, aGlyphIndices.data(), nCount, 0, NULL, NULL, &aSize))
{
SAL_WARN("vcl.gdi", "GetTextExtentExPointI failed: " << WindowsErrorString(GetLastError()));
SelectObject(hDC, hOrigFont);
@@ -131,8 +272,8 @@ bool ImplWinFontEntry::AddGlyphToCache(WORD nGlyphIndex, const WinLayout& rLayou
return false;
}
- ABC aABC;
- if (!GetCharABCWidthsI(hDC, 0, 1, &nGlyphIndex, &aABC))
+ std::vector<ABC> aABC(nCount);
+ if (!GetCharABCWidthsI(hDC, 0, nCount, aGlyphIndices.data(), aABC.data()))
{
SAL_WARN("vcl.gdi", "GetCharABCWidthsI failed: " << WindowsErrorString(GetLastError()));
SelectObject(hDC, hOrigFont);
@@ -140,7 +281,10 @@ bool ImplWinFontEntry::AddGlyphToCache(WORD nGlyphIndex, const WinLayout& rLayou
return false;
}
- SAL_INFO("vcl.gdi.opengl", "ABC width: " << aABC.abcA << ":" << aABC.abcB << ":" << aABC.abcC);
+ std::ostringstream sLine;
+ for (int i = 0; i < nCount; i++)
+ sLine << aABC[i].abcA << ":" << aABC[i].abcB << ":" << aABC[i].abcC << " ";
+ SAL_INFO("vcl.gdi.opengl", "ABC widths: " << sLine.str());
TEXTMETRICW aTextMetric;
if (!GetTextMetricsW(hDC, &aTextMetric))
@@ -150,6 +294,25 @@ bool ImplWinFontEntry::AddGlyphToCache(WORD nGlyphIndex, const WinLayout& rLayou
DeleteDC(hDC);
return false;
}
+ aChunk.mnAscent = aTextMetric.tmAscent;
+ aChunk.mnHeight = aTextMetric.tmHeight;
+
+ // Try hard to avoid overlap as we want to be able to use
+ // individual rectangles for each glyph. The ABC widths don't
+ // take anti-aliasing into consideration. Let's hope that leaving
+ // "extra" space inbetween glyphs will help.
+ std::vector<int> aDX(nCount);
+ int totWidth = 0;
+ for (int i = 0; i < nCount; i++)
+ {
+ aDX[i] = aABC[i].abcB + std::abs(aABC[i].abcC);
+ if (i == 0)
+ aDX[0] += std::abs(aABC[0].abcA);
+ if (i < nCount-1)
+ aDX[i] += std::abs(aABC[i+1].abcA);
+ aDX[i] += aChunk.getExtraSpace();
+ totWidth += aDX[i];
+ }
LOGFONTW aLogfont;
if (!GetObjectW(rLayout.mhFont, sizeof(aLogfont), &aLogfont))
@@ -175,19 +338,121 @@ bool ImplWinFontEntry::AddGlyphToCache(WORD nGlyphIndex, const WinLayout& rLayou
" Orientation=" << aLogfont.lfOrientation <<
" Ascent=" << aTextMetric.tmAscent <<
" InternalLeading=" << aTextMetric.tmInternalLeading <<
- " Size=(" << aSize.cx << "," << aSize.cy << ")");
+ " Size=(" << aSize.cx << "," << aSize.cy << ") totWidth=" << totWidth);
if (SelectObject(hDC, hOrigFont) == NULL)
SAL_WARN("vcl.gdi", "SelectObject failed: " << WindowsErrorString(GetLastError()));
if (!DeleteDC(hDC))
SAL_WARN("vcl.gdi", "DeleteDC failed: " << WindowsErrorString(GetLastError()));
- // FIXME HERE, in case this code snipet actually is needed any more?
+ // Leave extra space also at top and bottom
+ int nBitmapWidth, nBitmapHeight;
+ if (sFaceName[0] == '@')
+ {
+ nBitmapWidth = aSize.cy + aChunk.getExtraSpace();
+ nBitmapHeight = totWidth;
+ aChunk.mbVertical = true;
+ }
+ else
+ {
+ nBitmapWidth = totWidth;
+ nBitmapHeight = aSize.cy + aChunk.getExtraSpace();
+ aChunk.mbVertical = false;
+ }
+
+ if (aChunk.mbVertical && aLogfont.lfEscapement != 2700)
+ return false;
+
+ OpenGLCompatibleDC aDC(rGraphics, 0, 0, nBitmapWidth, nBitmapHeight);
+
+ HFONT hNonAntialiasedFont = NULL;
+
+#ifdef DBG_UTIL
+ static bool bNoAntialias = (std::getenv("VCL_GLYPH_CACHING_HACK_NO_ANTIALIAS") != NULL);
+ if (bNoAntialias)
+ {
+ aLogfont.lfQuality = NONANTIALIASED_QUALITY;
+ hNonAntialiasedFont = CreateFontIndirectW(&aLogfont);
+ if (hNonAntialiasedFont == NULL)
+ {
+ SAL_WARN("vcl.gdi", "CreateFontIndirect failed: " << WindowsErrorString(GetLastError()));
+ return false;
+ }
+ }
+#endif
+
+ hOrigFont = SelectFont(aDC.getCompatibleHDC(), hNonAntialiasedFont != NULL ? hNonAntialiasedFont : rLayout.mhFont);
+ if (hOrigFont == NULL)
+ {
+ SAL_WARN("vcl.gdi", "SelectObject failed: " << WindowsErrorString(GetLastError()));
+ return false;
+ }
+
+ SetTextColor(aDC.getCompatibleHDC(), RGB(0, 0, 0));
+ SetBkColor(aDC.getCompatibleHDC(), RGB(255, 255, 255));
+
+ aDC.fill(MAKE_SALCOLOR(0xff, 0xff, 0xff));
+
+ int nY = aChunk.getExtraOffset();
+ int nX = nY;
+ if (aChunk.mbVertical)
+ nX += aDX[0];
+ if (!ExtTextOutW(aDC.getCompatibleHDC(), nX, nY, ETO_GLYPH_INDEX, NULL, aGlyphIndices.data(), nCount, aDX.data()))
+ {
+ SAL_WARN("vcl.gdi", "ExtTextOutW failed: " << WindowsErrorString(GetLastError()));
+ SelectFont(aDC.getCompatibleHDC(), hOrigFont);
+ if (hNonAntialiasedFont != NULL)
+ DeleteObject(hNonAntialiasedFont);
+ return false;
+ }
+
+ aChunk.maLocation.resize(nCount);
+ UINT nPos = 0;
+ for (int i = 0; i < nCount; i++)
+ {
+ if (aChunk.mbVertical)
+ {
+ aChunk.maLocation[i].Left() = 0;
+ aChunk.maLocation[i].Right() = nBitmapWidth;
+ aChunk.maLocation[i].Top() = nPos;
+ aChunk.maLocation[i].Bottom() = nPos + aDX[i];
+ nPos = aChunk.maLocation[i].Bottom();
+ }
+ else
+ {
+ aChunk.maLocation[i].Left() = nPos;
+ aChunk.maLocation[i].Right() = nPos + aDX[i];
+ nPos = aChunk.maLocation[i].Right();
+ aChunk.maLocation[i].Top() = 0;
+ aChunk.maLocation[i].Bottom() = aSize.cy + aChunk.getExtraSpace();
+ }
+ }
+
+ aChunk.mpTexture = std::unique_ptr<OpenGLTexture>(aDC.getTexture());
+
+ maOpenGLGlyphCache.insert(n, aChunk);
+
+ SelectFont(aDC.getCompatibleHDC(), hOrigFont);
+ if (hNonAntialiasedFont != NULL)
+ DeleteObject(hNonAntialiasedFont);
+
+#ifdef SAL_LOG_INFO
+ SAL_INFO("vcl.gdi.opengl", "this=" << this << " now: " << maOpenGLGlyphCache);
+ DumpGlyphBitmap(aDC.getCompatibleHDC());
+#endif
return true;
}
-#endif
+const OpenGLGlyphCacheChunk& ImplWinFontEntry::GetCachedGlyphChunkFor(int nGlyphIndex) const
+{
+ auto i = maOpenGLGlyphCache.cbegin();
+ while (i != maOpenGLGlyphCache.cend() && nGlyphIndex >= i->mnFirstGlyph + i->mnGlyphCount)
+ ++i;
+ assert(i != maOpenGLGlyphCache.cend());
+ assert(nGlyphIndex >= i->mnFirstGlyph && nGlyphIndex < i->mnFirstGlyph + i->mnGlyphCount);
+ return *i;
+}
void ImplWinFontEntry::setupGLyphy(HDC hDC)
{
@@ -463,8 +728,12 @@ UniscribeLayout::UniscribeLayout(HDC hDC, const ImplWinFontData& rWinFontData,
mpGlyphs2Chars( NULL ),
mnMinKashidaWidth( 0 ),
mnMinKashidaGlyph( 0 ),
- mbDisableGlyphInjection( false )
-{}
+ mbDisableGlyphInjection( false ),
+ mbUseGLyphy( false )
+{
+ static bool bUseGLyphy = std::getenv("SAL_USE_GLYPHY") != NULL;
+ mbUseGLyphy = bUseGLyphy;
+}
UniscribeLayout::~UniscribeLayout()
{
@@ -1544,32 +1813,46 @@ void UniscribeLayout::DrawTextImpl(HDC hDC) const
DeleteFont(SelectFont(hDC, hOrigFont));
}
-bool UniscribeLayout::CacheGlyphs(SalGraphics&) const
+bool UniscribeLayout::CacheGlyphs(SalGraphics& rGraphics) const
{
static bool bDoGlyphCaching = (std::getenv("SAL_DISABLE_GLYPH_CACHING") == NULL);
if (!bDoGlyphCaching)
return false;
- if (!mrWinFontEntry.maMetric.mbTrueTypeFont)
- return false;
+ if (mbUseGLyphy)
+ {
+ if (!mrWinFontEntry.maMetric.mbTrueTypeFont)
+ return false;
+
+ mrWinFontEntry.setupGLyphy(mhDC);
- mrWinFontEntry.setupGLyphy(mhDC);
+ for (int i = 0; i < mnGlyphCount; i++)
+ {
+ if (mpOutGlyphs[i] == DROPPED_OUTGLYPH)
+ continue;
- for (int i = 0; i < mnGlyphCount; i++)
+ GLyphyDemo::glyph_info_t aGI;
+ VCL_GL_INFO("vcl.opengl", "Calling demo_font_lookup_glyph");
+ GLyphyDemo::demo_font_lookup_glyph( mrWinFontEntry.mpGLyphyFont, mpOutGlyphs[i], &aGI );
+ }
+ }
+ else
{
- if (mpOutGlyphs[i] == DROPPED_OUTGLYPH)
- continue;
+ for (int i = 0; i < mnGlyphCount; i++)
+ {
+ if (mrWinFontEntry.GlyphIsCached(mpOutGlyphs[i]))
+ continue;
- GLyphyDemo::glyph_info_t aGI;
- VCL_GL_INFO("vcl.opengl", "Calling demo_font_lookup_glyph");
- GLyphyDemo::demo_font_lookup_glyph( mrWinFontEntry.mpGLyphyFont, mpOutGlyphs[i], &aGI );
+ if (!mrWinFontEntry.AddChunkOfGlyphs(mpOutGlyphs[i], *this, rGraphics))
+ return false;
+ }
}
return true;
}
-bool UniscribeLayout::DrawCachedGlyphs(SalGraphics& rGraphics) const
+bool UniscribeLayout::DrawCachedGlyphsUsingGLyphy(SalGraphics& rGraphics) const
{
WinSalGraphics& rWinGraphics = static_cast<WinSalGraphics&>(rGraphics);
@@ -1757,6 +2040,107 @@ bool UniscribeLayout::DrawCachedGlyphs(SalGraphics& rGraphics) const
return true;
}
+bool UniscribeLayout::DrawCachedGlyphsUsingTextures(SalGraphics& rGraphics) const
+{
+ WinSalGraphics& rWinGraphics = static_cast<WinSalGraphics&>(rGraphics);
+ HDC hDC = rWinGraphics.getHDC();
+
+ Rectangle aRect;
+ GetBoundRect(rGraphics, aRect);
+
+ COLORREF color = GetTextColor(hDC);
+ SalColor salColor = MAKE_SALCOLOR(GetRValue(color), GetGValue(color), GetBValue(color));
+
+ WinOpenGLSalGraphicsImpl *pImpl = dynamic_cast<WinOpenGLSalGraphicsImpl*>(rWinGraphics.mpImpl.get());
+ if (!pImpl)
+ return false;
+
+ pImpl->PreDraw();
+
+ // FIXME: This code snippet is mostly copied from the one in
+ // UniscribeLayout::DrawTextImpl. Should be factored out.
+ int nBaseClusterOffset = 0;
+ int nBaseGlyphPos = -1;
+ for( int nItem = 0; nItem < mnItemCount; ++nItem )
+ {
+ const VisualItem& rVisualItem = mpVisualItems[ nItem ];
+
+ // skip if there is nothing to display
+ int nMinGlyphPos, nEndGlyphPos;
+ if( !GetItemSubrange( rVisualItem, nMinGlyphPos, nEndGlyphPos ) )
+ continue;
+
+ if( nBaseGlyphPos < 0 )
+ {
+ // adjust draw position relative to cluster start
+ if( rVisualItem.IsRTL() )
+ nBaseGlyphPos = nEndGlyphPos - 1;
+ else
+ nBaseGlyphPos = nMinGlyphPos;
+
+ int i = mnMinCharPos;
+ while( (--i >= rVisualItem.mnMinCharPos)
+ && (nBaseGlyphPos == mpLogClusters[i]) )
+ nBaseClusterOffset += mpCharWidths[i];
+
+ if( !rVisualItem.IsRTL() )
+ nBaseClusterOffset = -nBaseClusterOffset;
+ }
+
+ // now draw the matching glyphs in this item
+ Point aRelPos( rVisualItem.mnXOffset + nBaseClusterOffset, 0 );
+ Point aPos = GetDrawPosition( aRelPos );
+
+ int nAdvance = 0;
+
+ // This has to be in sync with UniscribeLayout::FillDXArray(), so that
+ // actual and reported glyph positions (used for e.g. cursor caret
+ // positioning) match.
+ const int* pGlyphWidths = mpJustifications ? mpJustifications : mpGlyphAdvances;
+
+ for (int i = nMinGlyphPos; i < nEndGlyphPos; i++)
+ {
+ // Ignore dropped glyphs.
+ if (mpOutGlyphs[i] == DROPPED_OUTGLYPH)
+ continue;
+
+ assert(mrWinFontEntry.GlyphIsCached(mpOutGlyphs[i]));
+
+ const OpenGLGlyphCacheChunk& rChunk = mrWinFontEntry.GetCachedGlyphChunkFor(mpOutGlyphs[i]);
+ const int n = mpOutGlyphs[i] - rChunk.mnFirstGlyph;
+
+ if (rChunk.mbVertical)
+ {
+ SalTwoRect a2Rects(rChunk.maLocation[n].Left(), rChunk.maLocation[n].Top(),
+ rChunk.maLocation[n].getWidth(), rChunk.maLocation[n].getHeight(),
+ aPos.X(), nAdvance + aPos.Y(),
+ rChunk.maLocation[n].getWidth(), rChunk.maLocation[n].getHeight()); // ???
+ pImpl->DrawMask(*rChunk.mpTexture, salColor, a2Rects);
+ }
+ else
+ {
+ SalTwoRect a2Rects(rChunk.maLocation[n].Left(), rChunk.maLocation[n].Top(),
+ rChunk.maLocation[n].getWidth(), rChunk.maLocation[n].getHeight(),
+ nAdvance + aPos.X() + mpGlyphOffsets[i].du - rChunk.getExtraOffset(), aPos.Y() + mpGlyphOffsets[i].dv - rChunk.mnAscent - rChunk.getExtraOffset(),
+ rChunk.maLocation[n].getWidth(), rChunk.maLocation[n].getHeight()); // ???
+ pImpl->DrawMask(*rChunk.mpTexture, salColor, a2Rects);
+ }
+ nAdvance += pGlyphWidths[i];
+ }
+ }
+ pImpl->PostDraw();
+
+ return true;
+}
+
+bool UniscribeLayout::DrawCachedGlyphs(SalGraphics& rGraphics) const
+{
+ if (mbUseGLyphy)
+ return DrawCachedGlyphsUsingGLyphy(rGraphics);
+ else
+ return DrawCachedGlyphsUsingTextures( rGraphics );
+}
+
DeviceCoordinate UniscribeLayout::FillDXArray( DeviceCoordinate* pDXArray ) const
{
// calculate width of the complete layout
diff --git a/vcl/win/source/gdi/winlayout.hxx b/vcl/win/source/gdi/winlayout.hxx
index 72b09211a743..664915be8d95 100644
--- a/vcl/win/source/gdi/winlayout.hxx
+++ b/vcl/win/source/gdi/winlayout.hxx
@@ -134,6 +134,9 @@ private:
int mnMinKashidaWidth;
int mnMinKashidaGlyph;
bool mbDisableGlyphInjection;
+ bool mbUseGLyphy;
+ bool DrawCachedGlyphsUsingGLyphy(SalGraphics& rGraphics) const;
+ bool DrawCachedGlyphsUsingTextures(SalGraphics& rGraphics) const;
};
#if ENABLE_GRAPHITE