Nikolay Sivov : dwrite: Always initialize context and font table pointers.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 7cac7bb99f962e268796fe5f7566d0eaffd09bb6
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=7cac7bb99f962e268796fe5f75...

Author: Nikolay Sivov 
Date:   Fri Apr  1 08:40:07 2016 +0300

dwrite: Always initialize context and font table pointers.

Signed-off-by: Nikolay Sivov 
Signed-off-by: Alexandre Julliard

---

dlls/dwrite/opentype.c   | 3 +++
 dlls/dwrite/tests/font.c | 9 +++++++++
 2 files changed, 12 insertions(+)

diff --git a/dlls/dwrite/opentype.c b/dlls/dwrite/opentype.c
index 7fb1749..97a786d 100644
--- a/dlls/dwrite/opentype.c
+++ b/dlls/dwrite/opentype.c
@@ -967,6 +967,9 @@ HRESULT opentype_get_font_table(IDWriteFontFileStream *stream, DWRITE_FONT_FACE_
     if (found) *found = FALSE;
     if (table_size) *table_size = 0;

+    *table_data = NULL;
+    *table_context = NULL;
+
     if (type == DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION) {
         const TTC_Header_V1 *ttc_header;
         void * ttc_context;
diff --git a/dlls/dwrite/tests/font.c b/dlls/dwrite/tests/font.c
index 9ba8b6d..ec631bd 100644
--- a/dlls/dwrite/tests/font.c
+++ b/dlls/dwrite/tests/font.c
@@ -2923,6 +2923,15 @@ static void test_TryGetFontTable(void)
     IDWriteFontFace_ReleaseFontTable(fontface, context2);
     IDWriteFontFace_ReleaseFontTable(fontface, context);

+    /* table does not exist */
+    exists = TRUE;
+    context = (void*)0xdeadbeef;
+    table = (void*)0xdeadbeef;
+    hr = IDWriteFontFace_TryGetFontTable(fontface, 0xabababab, &table, &size, &context, &exists);
+    ok(hr == S_OK, "got 0x%08x\n", hr);
+    ok(exists == FALSE, "got %d\n", exists);
+    ok(context == NULL && table == NULL, "got context %p, table pointer %p\n", context, table);
+
     IDWriteFontFace_Release(fontface);
     IDWriteFontFile_Release(file);
     IDWriteFactory_Release(factory);