Amiga font handling implementation. More...

#include "amiga/os3support.h"
#include <stdlib.h>
#include <proto/bullet.h>
#include <proto/diskfont.h>
#include <proto/exec.h>
#include <proto/graphics.h>
#include <proto/utility.h>
#include <diskfont/diskfonttag.h>
#include <diskfont/oterrors.h>
#include "utils/log.h"
#include "utils/nsoption.h"
#include "utils/utf8.h"
#include "utils/utils.h"
#include "amiga/memory.h"
#include "amiga/misc.h"
#include "amiga/font.h"
#include "amiga/font_bullet.h"
#include "amiga/font_cache.h"
#include "amiga/font_scan.h"

Include dependency graph for font_bullet.c:

Macros
#define	NSA_UNICODE_FONT PLOT_FONT_FAMILY_COUNT

#define	NSA_NORMAL 0

#define	NSA_ITALIC 1

#define	NSA_BOLD 2

#define	NSA_BOLDITALIC 3

#define	NSA_OBLIQUE 4

#define	NSA_BOLDOBLIQUE 6

#define	NSA_VALUE_BOLDX (1 << 12)

#define	NSA_VALUE_BOLDY 0

#define	NSA_VALUE_SHEARSIN (1 << 14)

#define	NSA_VALUE_SHEARCOS (1 << 16)

#define	NSA_FONT_EMWIDTH(s) (s / PLOT_STYLE_SCALE) * (ami_font_dpi_get_xdpi() / 72.0)

Functions
static int32	ami_font_plot_glyph (struct OutlineFont ofont, struct RastPort rp, uint16 restrict char1, uint16 restrict char2, uint32 x, uint32 y, uint32 emwidth, bool aa)

static int32	ami_font_width_glyph (struct OutlineFont ofont, const uint16 restrict char1, const uint16 *restrict char2, uint32 emwidth)

static struct OutlineFont *	ami_open_outline_font (const plot_font_style_t fstyle, const uint16 codepoint)
	Open an outline font in the specified size and style. More...

static ULONG	ami_font_unicode_width (const char string, ULONG length, const plot_font_style_t fstyle, ULONG x, ULONG y, bool aa)

static int	amiga_nsfont_utf16_char_length (const uint16 *char1)

static uint32	amiga_nsfont_decode_surrogate (const uint16 *char1)

static nserror	amiga_nsfont_width (const plot_font_style_t fstyle, const char string, size_t length, int *width)

static nserror	amiga_nsfont_position_in_string (const plot_font_style_t fstyle, const char string, size_t length, int x, size_t char_offset, int actual_x)
	Find the position in a string where an x coordinate falls. More...

static nserror	amiga_nsfont_split (const plot_font_style_t fstyle, const char string, size_t length, int x, size_t char_offset, int actual_x)
	Find where to split a string to make it fit a width. More...

static struct ami_font_cache_node *	ami_font_open (const char *font, bool critical)
	Search for a font in the list and load from disk if not present. More...

static const uint16 *	ami_font_translate_smallcaps (uint16 *utf16char)

static ULONG	amiga_nsfont_text (struct RastPort rp, const char string, ULONG length, const plot_font_style_t *fstyle, ULONG dx, ULONG dy, bool aa)

void	ami_font_bullet_close (void *nso)

void	ami_font_bullet_init (void)

void	ami_font_bullet_fini (void)

void	ami_font_initscanner (bool force, bool save)

void	ami_font_finiscanner (void)

void	ami_font_savescanner (void)

Variables
const uint16	sc_table []

static lwc_string *	glypharray [0xffff+1]

static struct List	ami_diskfontlib_list

const struct ami_font_functions	ami_font_bullet_table

Detailed Description

Amiga font handling implementation.

Definition in file font_bullet.c.

Macro Definition Documentation

◆ NSA_BOLD

#define NSA_BOLD 2

Definition at line 56 of file font_bullet.c.

◆ NSA_BOLDITALIC

#define NSA_BOLDITALIC 3

Definition at line 57 of file font_bullet.c.

◆ NSA_BOLDOBLIQUE

#define NSA_BOLDOBLIQUE 6

Definition at line 59 of file font_bullet.c.

◆ NSA_FONT_EMWIDTH

#define NSA_FONT_EMWIDTH ( s ) (s / PLOT_STYLE_SCALE) * (ami_font_dpi_get_xdpi() / 72.0)

Definition at line 66 of file font_bullet.c.

◆ NSA_ITALIC

#define NSA_ITALIC 1

Definition at line 55 of file font_bullet.c.

◆ NSA_NORMAL

#define NSA_NORMAL 0

Definition at line 54 of file font_bullet.c.

◆ NSA_OBLIQUE

#define NSA_OBLIQUE 4

Definition at line 58 of file font_bullet.c.

◆ NSA_UNICODE_FONT

#define NSA_UNICODE_FONT PLOT_FONT_FAMILY_COUNT

Definition at line 52 of file font_bullet.c.

◆ NSA_VALUE_BOLDX

#define NSA_VALUE_BOLDX (1 << 12)

Definition at line 61 of file font_bullet.c.

◆ NSA_VALUE_BOLDY

#define NSA_VALUE_BOLDY 0

Definition at line 62 of file font_bullet.c.

◆ NSA_VALUE_SHEARCOS

#define NSA_VALUE_SHEARCOS (1 << 16)

Definition at line 64 of file font_bullet.c.

◆ NSA_VALUE_SHEARSIN

#define NSA_VALUE_SHEARSIN (1 << 14)

Definition at line 63 of file font_bullet.c.

Function Documentation

◆ ami_font_bullet_close()

void ami_font_bullet_close ( void * nso )

Definition at line 872 of file font_bullet.c.

References ami_diskfontlib_list, CloseOutlineFont(), and ami_font_cache_node::font.

Referenced by ami_font_cache_insert().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_bullet_fini()

void ami_font_bullet_fini ( void )

Definition at line 900 of file font_bullet.c.

References ami_font_cache_fini(), and ami_font_finiscanner().

Referenced by ami_font_fini().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_bullet_init()

void ami_font_bullet_init ( void )

Definition at line 885 of file font_bullet.c.

References ami_diskfontlib_list, ami_font_bullet_table, ami_font_cache_init(), ami_font_initscanner(), and ami_nsfont.

Referenced by ami_font_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_finiscanner()

void ami_font_finiscanner ( void )

Definition at line 912 of file font_bullet.c.

References ami_font_scan_fini(), and glypharray.

Referenced by ami_font_bullet_fini(), and ami_gui_opts_use().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_initscanner()

void ami_font_initscanner	(	bool	force,
		bool	save
	)

Definition at line 907 of file font_bullet.c.

References ami_font_scan_init(), glypharray, and nsoption_charp.

Referenced by ami_font_bullet_init(), and ami_gui_opts_use().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_open()

static struct ami_font_cache_node * ami_font_open	(	const char *	font,
		bool	critical
	)

static

Search for a font in the list and load from disk if not present.

Definition at line 350 of file font_bullet.c.

References ami_diskfontlib_list, ami_font_cache_alloc_entry(), ami_font_cache_insert(), ami_font_cache_locate(), amiga_warn_user(), ami_font_cache_node::bold, ami_font_cache_node::bolditalic, ami_font_cache_node::font, ami_font_cache_node::italic, NSLOG, OFF_OPEN, OutlineFont::olf_OTagList, and OpenOutlineFont().

Referenced by ami_open_outline_font().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_plot_glyph()

static int32 ami_font_plot_glyph	(	struct OutlineFont *	ofont,
		struct RastPort *	rp,
		uint16 *restrict	char1,
		uint16 *restrict	char2,
		uint32	x,
		uint32	y,
		uint32	emwidth,
		bool	aa
	)

inlinestatic

Todo:: use OT_GlyphCode_32 so we get an error for old font engines

Definition at line 547 of file font_bullet.c.

References ami_memory_chip_alloc, ami_memory_chip_free, AMI_OFONT_ENGINE, amiga_nsfont_decode_surrogate(), OutlineFont::BulletBase, EObtainInfo, EReleaseInfo, and ESetInfo.

Referenced by amiga_nsfont_text().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_savescanner()

void ami_font_savescanner ( void )

Definition at line 917 of file font_bullet.c.

References ami_font_scan_save(), glypharray, and nsoption_charp.

Referenced by ami_gui_opts_use().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_translate_smallcaps()

static const uint16 * ami_font_translate_smallcaps ( uint16 * utf16char )

static

Definition at line 731 of file font_bullet.c.

References sc_table.

Referenced by ami_font_unicode_width(), and amiga_nsfont_text().

Here is the caller graph for this function:

◆ ami_font_unicode_width()

static ULONG ami_font_unicode_width	(	const char *	string,
		ULONG	length,
		const plot_font_style_t *	fstyle,
		ULONG	x,
		ULONG	y,
		bool	aa
	)

inlinestatic

Definition at line 810 of file font_bullet.c.

References ami_font_translate_smallcaps(), ami_font_width_glyph(), ami_open_outline_font(), amiga_nsfont_utf16_char_length(), plot_font_style::flags, FONTF_SMALLCAPS, NSA_FONT_EMWIDTH, NSERROR_OK, plot_font_style::size, and utf8_to_enc().

Referenced by amiga_nsfont_width().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_font_width_glyph()

static int32 ami_font_width_glyph	(	struct OutlineFont *	ofont,
		const uint16 *restrict	char1,
		const uint16 *restrict	char2,
		uint32	emwidth
	)

inlinestatic

Todo:: use OT_GlyphCode_32 so we get an error for old font engines

Definition at line 658 of file font_bullet.c.

References AMI_OFONT_ENGINE, amiga_nsfont_decode_surrogate(), OutlineFont::BulletBase, EObtainInfo, EReleaseInfo, ESetInfo, and GetHead().

Referenced by ami_font_unicode_width(), amiga_nsfont_position_in_string(), and amiga_nsfont_split().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ ami_open_outline_font()

static struct OutlineFont * ami_open_outline_font	(	const plot_font_style_t *	fstyle,
		const uint16 *	codepoint
	)

static

Open an outline font in the specified size and style.

Parameters

fstyle	font style structure
codepoint	open a default font instead of the one specified by fstyle

Returns: outline font or NULL on error

Definition at line 413 of file font_bullet.c.

References ami_font_dpi_get_devicedpi(), ami_font_open(), ami_font_scan_lookup(), AMI_OFONT_ENGINE, amiga_nsfont_utf16_char_length(), ami_font_cache_node::bold, ami_font_cache_node::bolditalic, OutlineFont::BulletBase, ESetInfo, plot_font_style::family, plot_font_style::flags, ami_font_cache_node::font, FONTF_ITALIC, FONTF_OBLIQUE, glypharray, ami_font_cache_node::italic, NSA_BOLD, NSA_BOLDITALIC, NSA_BOLDOBLIQUE, NSA_ITALIC, NSA_OBLIQUE, NSA_UNICODE_FONT, NSA_VALUE_BOLDX, NSA_VALUE_BOLDY, NSA_VALUE_SHEARCOS, NSA_VALUE_SHEARSIN, nsoption_charp, PLOT_FONT_FAMILY_CURSIVE, PLOT_FONT_FAMILY_FANTASY, PLOT_FONT_FAMILY_MONOSPACE, PLOT_FONT_FAMILY_SANS_SERIF, PLOT_FONT_FAMILY_SERIF, PLOT_STYLE_SCALE, plot_font_style::size, and plot_font_style::weight.

Referenced by ami_font_unicode_width(), amiga_nsfont_position_in_string(), amiga_nsfont_split(), and amiga_nsfont_text().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ amiga_nsfont_decode_surrogate()

static uint32 amiga_nsfont_decode_surrogate ( const uint16 * char1 )

inlinestatic

Definition at line 157 of file font_bullet.c.

References amiga_nsfont_utf16_char_length().

Referenced by ami_font_plot_glyph(), and ami_font_width_glyph().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ amiga_nsfont_position_in_string()

static nserror amiga_nsfont_position_in_string	(	const plot_font_style_t *	fstyle,
		const char *	string,
		size_t	length,
		int	x,
		size_t *	char_offset,
		int *	actual_x
	)

static

Find the position in a string where an x coordinate falls.

Parameters

fstyle	style for this text
string	UTF-8 string to measure
length	length of string
x	x coordinate to search for
char_offset	updated to offset in string of actual_x, [0..length]
actual_x	updated to x coordinate of character closest to x

Returns: true on success, false on error and error reported

Definition at line 191 of file font_bullet.c.

References ami_font_width_glyph(), ami_open_outline_font(), amiga_nsfont_utf16_char_length(), NSA_FONT_EMWIDTH, NSERROR_INVALID, NSERROR_OK, plot_font_style::size, utf8_next(), and utf8_to_enc().

Here is the call graph for this function:

◆ amiga_nsfont_split()

static nserror amiga_nsfont_split	(	const plot_font_style_t *	fstyle,
		const char *	string,
		size_t	length,
		int	x,
		size_t *	char_offset,
		int *	actual_x
	)

static

Find where to split a string to make it fit a width.

Parameters

fstyle	style for this text
string	UTF-8 string to measure
length	length of string
x	width available
char_offset	updated to offset in string of actual_x, [1..length]
actual_x	updated to x coordinate of character closest to x

Returns: true on success, false on error and error reported

On exit, char_offset indicates first character after split point.

Note: char_offset of 0 should never be returned.

Returns: char_offset giving split point closest to x, where actual_x <= x else char_offset giving split point closest to x, where actual_x > x

Returning char_offset == length means no split possible

Definition at line 274 of file font_bullet.c.

References ami_font_width_glyph(), ami_open_outline_font(), NSA_FONT_EMWIDTH, NSERROR_INVALID, NSERROR_OK, plot_font_style::size, utf8_next(), and utf8_to_enc().

Here is the call graph for this function:

◆ amiga_nsfont_text()

static ULONG amiga_nsfont_text	(	struct RastPort *	rp,
		const char *	string,
		ULONG	length,
		const plot_font_style_t *	fstyle,
		ULONG	dx,
		ULONG	dy,
		bool	aa
	)

static

Definition at line 745 of file font_bullet.c.

References ami_font_plot_glyph(), ami_font_translate_smallcaps(), ami_open_outline_font(), amiga_nsfont_utf16_char_length(), plot_font_style::flags, FONTF_SMALLCAPS, NSA_FONT_EMWIDTH, NSERROR_OK, plot_font_style::size, and utf8_to_enc().

Here is the call graph for this function:

◆ amiga_nsfont_utf16_char_length()

static int amiga_nsfont_utf16_char_length ( const uint16 * char1 )

inlinestatic

Definition at line 148 of file font_bullet.c.

Referenced by ami_font_unicode_width(), ami_open_outline_font(), amiga_nsfont_decode_surrogate(), amiga_nsfont_position_in_string(), and amiga_nsfont_text().

Here is the caller graph for this function:

◆ amiga_nsfont_width()

static nserror amiga_nsfont_width	(	const plot_font_style_t *	fstyle,
		const char *	string,
		size_t	length,
		int *	width
	)

static

Definition at line 166 of file font_bullet.c.

References ami_font_unicode_width(), NSERROR_OK, and width.

Here is the call graph for this function:

Variable Documentation

◆ ami_diskfontlib_list

struct List ami_diskfontlib_list

static

Definition at line 137 of file font_bullet.c.

Referenced by ami_font_bullet_close(), ami_font_bullet_init(), and ami_font_open().

◆ ami_font_bullet_table

const struct ami_font_functions ami_font_bullet_table

Initial value:

= {
        amiga_nsfont_width,
        amiga_nsfont_position_in_string,
        amiga_nsfont_split,
        amiga_nsfont_text
}

Definition at line 878 of file font_bullet.c.

Referenced by ami_font_bullet_init().

◆ glypharray

lwc_string* glypharray[0xffff+1]

static

Definition at line 135 of file font_bullet.c.

Referenced by ami_font_finiscanner(), ami_font_initscanner(), ami_font_savescanner(), ami_font_scan_fini(), ami_font_scan_font(), ami_font_scan_fonts(), ami_font_scan_init(), ami_font_scan_load(), ami_font_scan_lookup(), ami_font_scan_save(), and ami_open_outline_font().

◆ sc_table

const uint16 sc_table[]

Definition at line 68 of file font_bullet.c.

Referenced by ami_font_translate_smallcaps().

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ NSA_BOLD

◆ NSA_BOLDITALIC

◆ NSA_BOLDOBLIQUE

◆ NSA_FONT_EMWIDTH

◆ NSA_ITALIC

◆ NSA_NORMAL

◆ NSA_OBLIQUE

◆ NSA_UNICODE_FONT

◆ NSA_VALUE_BOLDX

◆ NSA_VALUE_BOLDY

◆ NSA_VALUE_SHEARCOS

◆ NSA_VALUE_SHEARSIN

Function Documentation

◆ ami_font_bullet_close()

◆ ami_font_bullet_fini()

◆ ami_font_bullet_init()

◆ ami_font_finiscanner()

◆ ami_font_initscanner()

◆ ami_font_open()

◆ ami_font_plot_glyph()

◆ ami_font_savescanner()

◆ ami_font_translate_smallcaps()

◆ ami_font_unicode_width()

◆ ami_font_width_glyph()

◆ ami_open_outline_font()

◆ amiga_nsfont_decode_surrogate()

◆ amiga_nsfont_position_in_string()

◆ amiga_nsfont_split()

◆ amiga_nsfont_text()

◆ amiga_nsfont_utf16_char_length()

◆ amiga_nsfont_width()

Variable Documentation

◆ ami_diskfontlib_list

◆ ami_font_bullet_table

◆ glypharray

◆ sc_table