117 lines
2.7 KiB
C++
117 lines
2.7 KiB
C++
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#include <stdint.h>
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/*
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*
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* The OpenType Font File
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*
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*/
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/*
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* Data Types:
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*/
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/* "All OpenType fonts use Motorola-style byte ordering (Big Endian)"
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* So we define the following hb_be_* types as structs/unions, to
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* disallow accidental access to them as an integer. */
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typedef union {
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uint8_t u8;
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uint8_t v;
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} hb_be_uint8_t;
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typedef union {
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int8_t i8;
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int8_t v;
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} hb_be_int8_t;
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typedef union {
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uint8_t u8x2[2];
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uint16_t u16;
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uint16_t v;
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} hb_be_uint16_t;
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typedef union {
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uint8_t u8x2[2];
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int16_t i16;
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int16_t v;
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} hb_be_int16_t;
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typedef union {
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uint8_t u8x4[4];
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uint16_t u16x2[2];
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uint32_t u32;
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uint32_t v;
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inline operator int () { return (u8x4[0]<<24)+(u8x4[1]<<16)+(u8x4[2]<<8)+u8x4[3]; }
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} hb_be_uint32_t;
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typedef union {
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uint8_t u8x4[4];
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uint16_t u16x2[2];
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int32_t i32;
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int32_t v;
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} hb_be_int32_t;
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typedef union {
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uint8_t u8x8[8];
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uint16_t u16x4[4];
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uint32_t u32x2[2];
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uint64_t u64;
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uint64_t v;
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} hb_be_uint64_t;
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typedef union {
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uint8_t u8x8[8];
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uint16_t u16x4[4];
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uint32_t u32x2[2];
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int64_t i64;
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int64_t v;
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} hb_be_int64_t;
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/* "The following data types are used in the OpenType font file." */
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typedef hb_be_uint8_t HB_BYTE; /* 8-bit unsigned integer. */
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typedef hb_be_int8_t HB_CHAR; /* 8-bit signed integer. */
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typedef hb_be_uint16_t HB_USHORT; /* 16-bit unsigned integer. */
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typedef hb_be_int16_t HB_SHORT; /* 16-bit signed integer. */
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typedef hb_be_uint32_t HB_ULONG; /* 32-bit unsigned integer. */
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typedef hb_be_int32_t HB_LONG; /* 32-bit signed integer. */
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typedef hb_be_int32_t HB_Fixed; /* 32-bit signed fixed-point number
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* (16.16) */
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typedef struct _FUNIT HB_FUNIT; /* Smallest measurable distance
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* in the em space. */
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typedef HB_SHORT HB_FWORD; /* 16-bit signed integer (SHORT) that
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* describes a quantity in FUnits. */
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typedef HB_USHORT HB_UFWORD; /* 16-bit unsigned integer (USHORT)
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* that describes a quantity in
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* FUnits. */
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typedef hb_be_int16_t HB_F2DOT14; /* 16-bit signed fixed number with the
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* low 14 bits of fraction (2.14). */
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typedef hb_be_int64_t HB_LONGDATETIME;/* Date represented in number of
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* seconds since 12:00 midnight,
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* January 1, 1904. The value is
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* represented as a signed 64-bit
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* integer. */
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typedef hb_be_uint32_t HB_Tag; /* Array of four uint8s (length = 32
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* bits) used to identify a script,
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* language system, feature, or
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* baseline */
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typedef hb_be_uint16_t HB_GlyphID; /* Glyph index number, same as
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* uint16(length = 16 bits) */
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typedef hb_be_uint16_t HB_Offset; /* Offset to a table, same as uint16
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* (length = 16 bits), NULL offset =
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* 0x0000 */
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#include <stdio.h>
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int
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main (void)
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{
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HB_Tag x = {{'a', 'b', 'c', 'd'}};
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HB_ULONG y = x;
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printf ("%d\n", x+0);
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return 0;
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}
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