XPS ttc handling.

src/sfnt/SkTTCFHeader.h

+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkTTCFHeader_DEFINED
+#define SkTTCFHeader_DEFINED
+
+#include "SkOTTableTypes.h"
+
+#pragma pack(push, 1)
+
+struct SkTTCFHeader {
+    SK_SFNT_ULONG ttcTag;
+    static const SK_OT_CHAR TAG0 = 't';
+    static const SK_OT_CHAR TAG1 = 't';
+    static const SK_OT_CHAR TAG2 = 'c';
+    static const SK_OT_CHAR TAG3 = 'f';
+    static const SK_OT_ULONG TAG = SkOTTableTAG<SkTTCFHeader>::value;
+
+    SK_OT_Fixed version;
+    static const SK_OT_Fixed version_1 = SkTEndian_SwapBE32(1 << 16);
+    static const SK_OT_Fixed version_2 = SkTEndian_SwapBE32(2 << 16);
+    
+    SK_OT_ULONG numOffsets;
+    //SK_OT_ULONG offset[numOffsets]
+
+    struct Version2Ext {
+        SK_OT_ULONG dsigType;
+        struct dsigType_None {
+            static const SK_OT_CHAR TAG0 = 0;
+            static const SK_OT_CHAR TAG1 = 0;
+            static const SK_OT_CHAR TAG2 = 0;
+            static const SK_OT_CHAR TAG3 = 0;
+            static const SK_OT_ULONG TAG = SkOTTableTAG<dsigType_None>::value;
+        };
+        struct dsigType_Format1 {
+            static const SK_OT_CHAR TAG0 = 'D';
+            static const SK_OT_CHAR TAG1 = 'S';
+            static const SK_OT_CHAR TAG2 = 'I';
+            static const SK_OT_CHAR TAG3 = 'G';
+            static const SK_OT_ULONG TAG = SkOTTableTAG<dsigType_Format1>::value;
+        };
+        SK_OT_ULONG dsigLength; //Length of DSIG table (in bytes).
+        SK_OT_ULONG dsigOffset; //Offset of DSIG table from the beginning of file (in bytes).
+    };// version2ext (if version == version_2)
+};
+
+#pragma pack(pop)
+
+
+SK_COMPILE_ASSERT(sizeof(SkTTCFHeader) == 12, sizeof_SkTTCFHeader_not_12);
+
+#endif