Fix native crash in Latin-1 typefaces

This is a fix for bug 15171911 Timely crashes (native crash in
libminikin) when I go to add a new alarm

This patch fixes an off-by-one error that caused typefaces with only one
page of Unicode coverage (ASCII or Latin-1) to have nPages = 0 instead
of the correct value of 1 in the corresponding FontCollection.

Change-Id: Id8be0c9e5713b8af22d863992921ee6382416a34

1 files changed, 1 insertions, 1 deletions

diff --git a/libs/minikin/FontCollection.cpp b/libs/minikin/FontCollection.cpp
index cd7b19e..8919dc1 100644
--- a/libs/minikin/FontCollection.cpp
+++ b/libs/minikin/FontCollection.cpp
@@ -66,7 +66,7 @@ FontCollection::FontCollection(const vector<FontFamily*>& typefaces) :
         mMaxChar = max(mMaxChar, instance->mCoverage->length());
         lastChar.push_back(instance->mCoverage->nextSetBit(0));
     }
-    size_t nPages = mMaxChar >> kLogCharsPerPage;
+    size_t nPages = (mMaxChar + kPageMask) >> kLogCharsPerPage;
     size_t offset = 0;
     for (size_t i = 0; i < nPages; i++) {
         Range dummy;