Nikolay Sivov : dwrite: Allow null arguments in opentype_get_font_table().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 34823028e17c3f34e1e7e23642ef4239841a1750
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=34823028e17c3f34e1e7e23642...

Author: Nikolay Sivov <nsivov(a)codeweavers.com>
Date:   Mon Oct 27 11:26:22 2014 +0300

dwrite: Allow null arguments in opentype_get_font_table().

---

 dlls/dwrite/opentype.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/dlls/dwrite/opentype.c b/dlls/dwrite/opentype.c
index c007b35..c6f7a52 100644
--- a/dlls/dwrite/opentype.c
+++ b/dlls/dwrite/opentype.c
@@ -322,7 +322,8 @@ HRESULT opentype_get_font_table(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_
     int table_count, table_offset = 0;
     int i;
 
-    *found = FALSE;
+    if (found) *found = FALSE;
+    if (table_size) *table_size = 0;
 
     if (type == DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION) {
         const TTC_Header_V1 *ttc_header;
@@ -363,8 +364,8 @@ HRESULT opentype_get_font_table(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_
         int length = GET_BE_DWORD(table_record->length);
         IDWriteFontFileStream_ReleaseFileFragment(stream, table_record_context);
 
-        *found = TRUE;
-        *table_size = length;
+        if (found) *found = TRUE;
+        if (table_size) *table_size = length;
         hr = IDWriteFontFileStream_ReadFileFragment(stream, table_data, offset, length, table_context);
     }