Update PDF backend to support fallback fonts on Android.
R=edisonn@google.com, reed@google.com, vandebo@chromium.org
Review URL: https://codereview.chromium.org/24364008
git-svn-id: http://skia.googlecode.com/svn/trunk/include@11586 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/ports/SkTypeface_android.h b/ports/SkTypeface_android.h
index 1ee923c..2166e08 100644
--- a/ports/SkTypeface_android.h
+++ b/ports/SkTypeface_android.h
@@ -68,6 +68,22 @@
SkTypeface* SkAndroidNextLogicalTypeface(SkFontID currFontID, SkFontID origFontID,
const SkPaintOptionsAndroid& options);
+/**
+ * Given a glyphID (built using fallback font chaining) and its origin typeface
+ * return the actual typeface within the fallback chain that this glyphID
+ * resolves to. If no suitable typeface is found then NULL is returned. However,
+ * if returned typeface is not NULL it is assumed to be globally cached so the
+ * caller need not ref it.
+ *
+ * Optionally, if lower/upper bound params are provided and the returned
+ * typeface is not NULL, then these params are populated with the range of
+ * glyphIDs that this typeface is capable of resolving. The lower bound is
+ * inclusive while the upper bound is exclusive.
+ */
+SkTypeface* SkGetTypefaceForGlyphID(uint16_t glyphID, const SkTypeface* origTypeface,
+ const SkPaintOptionsAndroid& options,
+ int* lowerBounds = NULL, int* upperBounds = NULL);
+
#endif // #ifdef SK_BUILD_FOR_ANDROID
#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
