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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 "SkTypes.h"
#include "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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