Implement onCountGlyphs and onGetUPEM on Windows.

src/ports/SkFontHost_win_dw.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"
 #undef GetGlyphIndices
 
@@ skipping 474 matching lines @@
     }
 
 protected:
     virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE;
     virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE;
     virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE;
     virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics(
                                 SkAdvancedTypefaceMetrics::PerGlyphInfo,
                                 const uint32_t*, uint32_t) const SK_OVERRIDE;
     virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE;
+    virtual int onCountGlyphs() const SK_OVERRIDE;
+    virtual int onGetUPEM() const SK_OVERRIDE;
 };
 
 class SkScalerContext_Windows : public SkScalerContext {
 public:
     SkScalerContext_Windows(DWriteFontTypeface*, const SkDescriptor* desc);
     virtual ~SkScalerContext_Windows();
 
 protected:
     virtual unsigned generateGlyphCount() SK_OVERRIDE;
     virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE;
@@ skipping 559 matching lines @@
     SkSMallocWCHAR dwFamilyNameChar(dwFamilyNamesLength+1);
     HRV(dwFamilyNames->GetString(0, dwFamilyNameChar.get(), dwFamilyNamesLength+1));
 
     SkString utf8FamilyName;
     HRV(wchar_to_skstring(dwFamilyNameChar.get(), &utf8FamilyName));
 
     desc->setFamilyName(utf8FamilyName.c_str());
     *isLocalStream = SkToBool(fDWriteFontFileLoader.get());
 }
 
+int DWriteFontTypeface::onCountGlyphs() const {
+    return fDWriteFontFace->GetGlyphCount();
+}
+
+int DWriteFontTypeface::onGetUPEM() const {
+    DWRITE_FONT_METRICS metrics;
+    fDWriteFontFace->GetMetrics(&metrics);
+    return metrics.designUnitsPerEm;
+}
+
 template <typename T> class SkAutoIDWriteUnregister {
 public:
     SkAutoIDWriteUnregister(IDWriteFactory* factory, T* unregister)
         : fFactory(factory), fUnregister(unregister)
     { }
 
     ~SkAutoIDWriteUnregister() {
         if (fUnregister) {
             unregister(fFactory, fUnregister);
         }
@@ skipping 664 matching lines @@
 
     WCHAR localeNameStorage[LOCALE_NAME_MAX_LENGTH];
     WCHAR* localeName = NULL;
     int localeNameLen = GetUserDefaultLocaleName(localeNameStorage, LOCALE_NAME_MAX_LENGTH);
     if (localeNameLen) {
         localeName = localeNameStorage;
     };
 
     return SkNEW_ARGS(SkFontMgr_DirectWrite, (sysFontCollection.get(), localeName, localeNameLen));
 }