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