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- /*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef SkOTTableTypes_DEFINED
- #define SkOTTableTypes_DEFINED
- #include "include/core/SkTypes.h"
- #include "src/core/SkEndian.h"
- //All SK_OT_ prefixed types should be considered as big endian.
- typedef uint8_t SK_OT_BYTE;
- #if CHAR_BIT == 8
- typedef signed char SK_OT_CHAR; //easier to debug
- #else
- typedef int8_t SK_OT_CHAR;
- #endif
- typedef uint16_t SK_OT_SHORT;
- typedef uint16_t SK_OT_USHORT;
- typedef uint32_t SK_OT_ULONG;
- typedef uint32_t SK_OT_LONG;
- //16.16 Signed fixed point representation.
- typedef int32_t SK_OT_Fixed;
- //2.14 Signed fixed point representation.
- typedef uint16_t SK_OT_F2DOT14;
- //F units are the units of measurement in em space.
- typedef uint16_t SK_OT_FWORD;
- typedef uint16_t SK_OT_UFWORD;
- //Number of seconds since 12:00 midnight, January 1, 1904.
- typedef uint64_t SK_OT_LONGDATETIME;
- #define SK_OT_BYTE_BITFIELD SK_UINT8_BITFIELD
- template<typename T> class SkOTTableTAG {
- public:
- /**
- * SkOTTableTAG<T>::value is the big endian value of an OpenType table tag.
- * It may be directly compared with raw big endian table data.
- */
- static const SK_OT_ULONG value = SkTEndian_SwapBE32(
- SkSetFourByteTag(T::TAG0, T::TAG1, T::TAG2, T::TAG3)
- );
- };
- /** SkOTSetUSHORTBit<N>::value is an SK_OT_USHORT with the Nth BE bit set. */
- template <unsigned N> struct SkOTSetUSHORTBit {
- static_assert(N < 16, "NTooBig");
- static const uint16_t bit = 1u << N;
- static const SK_OT_USHORT value = SkTEndian_SwapBE16(bit);
- };
- /** SkOTSetULONGBit<N>::value is an SK_OT_ULONG with the Nth BE bit set. */
- template <unsigned N> struct SkOTSetULONGBit {
- static_assert(N < 32, "NTooBig");
- static const uint32_t bit = 1u << N;
- static const SK_OT_ULONG value = SkTEndian_SwapBE32(bit);
- };
- #endif
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