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      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #ifndef SkOTTable_OS_2_DEFINED
      9 #define SkOTTable_OS_2_DEFINED
     10 
     11 #include "SkOTTable_OS_2_VA.h"
     12 #include "SkOTTable_OS_2_V0.h"
     13 #include "SkOTTable_OS_2_V1.h"
     14 #include "SkOTTable_OS_2_V2.h"
     15 #include "SkOTTable_OS_2_V3.h"
     16 #include "SkOTTable_OS_2_V4.h"
     17 
     18 #pragma pack(push, 1)
     19 
     20 struct SkOTTableOS2 {
     21     static constexpr SK_OT_CHAR TAG0 = 'O';
     22     static constexpr SK_OT_CHAR TAG1 = 'S';
     23     static constexpr SK_OT_CHAR TAG2 = '/';
     24     static constexpr SK_OT_CHAR TAG3 = '2';
     25     static constexpr SK_OT_ULONG TAG = SkOTTableTAG<SkOTTableOS2>::value;
     26 
     27     union Version {
     28         SK_OT_USHORT version;
     29 
     30         //original V0 TT
     31         struct VA : SkOTTableOS2_VA { } vA;
     32         struct V0 : SkOTTableOS2_V0 { } v0;
     33         struct V1 : SkOTTableOS2_V1 { } v1;
     34         struct V2 : SkOTTableOS2_V2 { } v2;
     35         //makes fsType 0-3 exclusive
     36         struct V3 : SkOTTableOS2_V3 { } v3;
     37         //defines fsSelection bits 7-9
     38         struct V4 : SkOTTableOS2_V4 { } v4;
     39     } version;
     40 };
     41 
     42 #pragma pack(pop)
     43 
     44 
     45 static_assert(sizeof(SkOTTableOS2::Version::VA) == 68, "sizeof_SkOTTableOS2__VA_not_68");
     46 static_assert(sizeof(SkOTTableOS2::Version::V0) == 78, "sizeof_SkOTTableOS2__V0_not_78");
     47 static_assert(sizeof(SkOTTableOS2::Version::V1) == 86, "sizeof_SkOTTableOS2__V1_not_86");
     48 static_assert(sizeof(SkOTTableOS2::Version::V2) == 96, "sizeof_SkOTTableOS2__V2_not_96");
     49 static_assert(sizeof(SkOTTableOS2::Version::V3) == 96, "sizeof_SkOTTableOS2__V3_not_96");
     50 static_assert(sizeof(SkOTTableOS2::Version::V4) == 96, "sizeof_SkOTTableOS2__V4_not_96");
     51 
     52 #endif
     53