[PDF] Fix font embedding restrictions.

src/pdf/SkPDFDocument.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 "SkPDFCatalog.h"
@@ skipping 240 matching lines @@
 bool SkPDFDocument::appendPage(SkPDFDevice* pdfDevice) {
     if (!fPageTree.isEmpty()) {
         return false;
     }
 
     SkPDFPage* page = new SkPDFPage(pdfDevice);
     fPages.push(page);  // Reference from new passed to fPages.
     return true;
 }
 
+// Deprecated.
 void SkPDFDocument::getCountOfFontTypes(
-        int counts[SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1]) const {
+        int counts[SkAdvancedTypefaceMetrics::kOther_Font + 2]) const {
     sk_bzero(counts, sizeof(int) *
-                     (SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1));
+                     (SkAdvancedTypefaceMetrics::kOther_Font + 2));
     SkTDArray<SkFontID> seenFonts;
+    int notEmbeddable = 0;
 
     for (int pageNumber = 0; pageNumber < fPages.count(); pageNumber++) {
         const SkTDArray<SkPDFFont*>& fontResources =
                 fPages[pageNumber]->getFontResources();
         for (int font = 0; font < fontResources.count(); font++) {
             SkFontID fontID = fontResources[font]->typeface()->uniqueID();
             if (seenFonts.find(fontID) == -1) {
                 counts[fontResources[font]->getType()]++;
                 seenFonts.push(fontID);
+                if (!fontResources[font]->canEmbed()) {
+                    notEmbeddable++;
+                }
             }
         }
     }
+    counts[SkAdvancedTypefaceMetrics::kOther_Font + 1] = notEmbeddable;
+}
+
+void SkPDFDocument::getCountOfFontTypes(
+        int counts[SkAdvancedTypefaceMetrics::kOther_Font + 1],
+        int* notSubsettableCount,
+        int* notEmbeddableCount) const {
+    sk_bzero(counts, sizeof(int) *
+                     (SkAdvancedTypefaceMetrics::kOther_Font + 1));
+    SkTDArray<SkFontID> seenFonts;
+    int notSubsettable = 0;
+    int notEmbeddable = 0;
+
+    for (int pageNumber = 0; pageNumber < fPages.count(); pageNumber++) {
+        const SkTDArray<SkPDFFont*>& fontResources =
+                fPages[pageNumber]->getFontResources();
+        for (int font = 0; font < fontResources.count(); font++) {
+            SkFontID fontID = fontResources[font]->typeface()->uniqueID();
+            if (seenFonts.find(fontID) == -1) {
+                counts[fontResources[font]->getType()]++;
+                seenFonts.push(fontID);
+                if (!fontResources[font]->canSubset()) {
+                    notSubsettable++;
+                }
+                if (!fontResources[font]->canEmbed()) {
+                    notEmbeddable++;
+                }
+            }
+        }
+    }
+    if (notSubsettableCount) {
+        *notSubsettableCount = notSubsettable;
+
+    }
+    if (notEmbeddableCount) {
+        *notEmbeddableCount = notEmbeddable;
+    }
 }
 
 void SkPDFDocument::emitHeader(SkWStream* stream) {
     stream->writeText("%PDF-1.4\n%");
     // The PDF spec recommends including a comment with four bytes, all
     // with their high bits set.  This is "Skia" with the high bits set.
     stream->write32(0xD3EBE9E1);
     stream->writeText("\n");
 }
 
@@ skipping 12 matching lines @@
         fTrailerDict->insertInt("Size", int(objCount));
         fTrailerDict->insert("Root", new SkPDFObjRef(fDocCatalog))->unref();
     }
 
     stream->writeText("trailer\n");
     fTrailerDict->emitObject(stream, fCatalog.get(), false);
     stream->writeText("\nstartxref\n");
     stream->writeBigDecAsText(fXRefFileOffset);
     stream->writeText("\n%%EOF");
 }