hex2otf - Convert GNU Unifont .hex file to OpenType font More...

#include <assert.h>
#include <ctype.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "hex2otf.h"

Include dependency graph for hex2otf.c:

Go to the source code of this file.

Data Structures
struct	Buffer
	Generic data structure for a linked list of buffer elements. More...

struct	Glyph
	Data structure to hold data for one bitmap glyph. More...

struct	Font
	Data structure to hold information for one font. More...

struct	Table
	Data structure for an OpenType table. More...

struct	TableRecord
	Data structure for data associated with one OpenType table. More...

struct	Options
	Data structure to hold options for OpenType font output. More...

Macros
#define	VERSION "1.0.1"
	Program version, for "--version" option.

#define	U16MAX 0xffff
	Maximum UTF-16 code point value.

#define	U32MAX 0xffffffff
	Maximum UTF-32 code point value.

#define	PRI_CP "U+%.4"PRIXFAST32
	Format string to print Unicode code point.

#define	static_assert(a, b) (assert(a))
	If "a" is true, return string "b".

#define	BX(shift, x) ((uintmax_t)(!!(x)) << (shift))
	Truncate & shift word.

#define	B0(shift) BX((shift), 0)
	Clear a given bit in a word.

#define	B1(shift) BX((shift), 1)
	Set a given bit in a word.

#define	GLYPH_MAX_WIDTH 16
	Maximum glyph width, in pixels.

#define	GLYPH_HEIGHT 16
	Maximum glyph height, in pixels.

#define	GLYPH_MAX_BYTE_COUNT (GLYPH_HEIGHT * GLYPH_MAX_WIDTH / 8)
	Number of bytes to represent one bitmap glyph as a binary array.

#define	DESCENDER 2
	Count of pixels below baseline.

#define	ASCENDER (GLYPH_HEIGHT - DESCENDER)
	Count of pixels above baseline.

#define	FUPEM 64
	Font units per em.

#define	MAX_GLYPHS 65536
	An OpenType font has at most 65536 glyphs.

#define	MAX_NAME_IDS 256
	Name IDs 0-255 are used for standard names.

#define	FU(x) ((x) * FUPEM / GLYPH_HEIGHT)
	Convert pixels to font units.

#define	PW(x) ((x) / (GLYPH_HEIGHT / 8))
	Convert glyph byte count to pixel width.

#define	defineStore(name, type)
	Temporary define to look up an element in an array of given type. More...

#define	addByte(shift)

#define	getRowBit(rows, x, y) ((rows)[(y)] & x0 >> (x))

#define	flipRowBit(rows, x, y) ((rows)[(y)] ^= x0 >> (x))

#define	stringCount (sizeof strings / sizeof *strings)

#define	cacheCFF32(buf, x) (cacheU8 ((buf), 29), cacheU32 ((buf), (x)))

Typedefs
typedef unsigned char	byte
	Definition of "byte" type as an unsigned char.

typedef int_least8_t	pixels_t
	This type must be able to represent max(GLYPH_MAX_WIDTH, GLYPH_HEIGHT).

typedef struct Buffer	Buffer
	Generic data structure for a linked list of buffer elements. More...

typedef const char *	NameStrings[MAX_NAME_IDS]
	Array of OpenType names indexed directly by Name IDs.

typedef struct Glyph	Glyph
	Data structure to hold data for one bitmap glyph. More...

typedef struct Font	Font
	Data structure to hold information for one font.

typedef struct Table	Table
	Data structure for an OpenType table. More...

typedef struct Options	Options
	Data structure to hold options for OpenType font output. More...

Enumerations
enum	LocaFormat { LOCA_OFFSET16 = 0 , LOCA_OFFSET32 = 1 }
	Index to Location ("loca") offset information. More...

enum	ContourOp { OP_CLOSE , OP_POINT }
	Specify the current contour drawing operation. More...

enum	FillSide { FILL_LEFT , FILL_RIGHT }
	Fill to the left side (CFF) or right side (TrueType) of a contour. More...

Functions
void	fail (const char *reason,...)
	Print an error message on stderr, then exit. More...

void	initBuffers (size_t count)
	Initialize an array of buffer pointers to all zeroes. More...

void	cleanBuffers ()
	Free all allocated buffer pointers. More...

Buffer *	newBuffer (size_t initialCapacity)
	Create a new buffer. More...

void	ensureBuffer (Buffer *buf, size_t needed)
	Ensure that the buffer has at least the specified minimum size. More...

void	freeBuffer (Buffer *buf)
	Free the memory previously allocated for a buffer. More...

	defineStore (storeU8, uint_least8_t)

void	cacheU8 (Buffer *buf, uint_fast8_t value)
	Append one unsigned byte to the end of a byte array. More...

void	cacheU16 (Buffer *buf, uint_fast16_t value)
	Append two unsigned bytes to the end of a byte array. More...

void	cacheU32 (Buffer *buf, uint_fast32_t value)
	Append four unsigned bytes to the end of a byte array. More...

void	cacheCFFOperand (Buffer *buf, int_fast32_t value)
	Cache charstring number encoding in a CFF buffer. More...

void	cacheZeros (Buffer *buf, size_t count)
	Append 1 to 4 bytes of zeroes to a buffer, for padding. More...

void	cacheBytes (Buffer restrict buf, const void restrict src, size_t count)
	Append a string of bytes to a buffer. More...

void	cacheBuffer (Buffer restrict bufDest, const Buffer restrict bufSrc)
	Append bytes of a table to a byte buffer. More...

Data Structures

Macros

Typedefs

Enumerations

Functions