You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
922 lines
23 KiB
922 lines
23 KiB
/*
|
|
* Copyright 2008 - 2019 Chris Young <chris@unsatisfactorysoftware.co.uk>
|
|
*
|
|
* This file is part of NetSurf, http://www.netsurf-browser.org/
|
|
*
|
|
* NetSurf is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* NetSurf is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* Amiga font handling implementation
|
|
*/
|
|
|
|
#include "amiga/os3support.h"
|
|
|
|
#include <stdlib.h>
|
|
|
|
#ifndef __amigaos4__
|
|
#include <proto/bullet.h>
|
|
#endif
|
|
#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"
|
|
|
|
|
|
#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)
|
|
|
|
const uint16 sc_table[] = {
|
|
0x0061, 0x1D00, /* a */
|
|
0x0062, 0x0299, /* b */
|
|
0x0063, 0x1D04, /* c */
|
|
0x0064, 0x1D05, /* d */
|
|
0x0065, 0x1D07, /* e */
|
|
0x0066, 0xA730, /* f */
|
|
0x0067, 0x0262, /* g */
|
|
0x0068, 0x029C, /* h */
|
|
0x0069, 0x026A, /* i */
|
|
0x006A, 0x1D0A, /* j */
|
|
0x006B, 0x1D0B, /* k */
|
|
0x006C, 0x029F, /* l */
|
|
0x006D, 0x1D0D, /* m */
|
|
0x006E, 0x0274, /* n */
|
|
0x006F, 0x1D0F, /* o */
|
|
0x0070, 0x1D18, /* p */
|
|
0x0071, 0xA7AF, /* q */
|
|
0x0072, 0x0280, /* r */
|
|
0x0073, 0xA731, /* s */
|
|
0x0074, 0x1D1B, /* t */
|
|
0x0075, 0x1D1C, /* u */
|
|
0x0076, 0x1D20, /* v */
|
|
0x0077, 0x1D21, /* w */
|
|
0x0078, 0xA7EF, /* x (proposed) (Adobe codepoint 0xF778) */
|
|
0x0079, 0x028F, /* y */
|
|
0x007A, 0x1D22, /* z */
|
|
|
|
0x00C6, 0x1D01, /* ae */
|
|
0x0153, 0x0276, /* oe */
|
|
|
|
#if 0
|
|
/* TODO: fill in the non-small caps character ids for these */
|
|
0x0000, 0x1D03, /* barred b */
|
|
0x0000, 0x0281, /* inverted r */
|
|
0x0000, 0x1D19, /* reversed r */
|
|
0x0000, 0x1D1A, /* turned r */
|
|
0x0000, 0x029B, /* g with hook */
|
|
0x0000, 0x1D06, /* eth Ð */
|
|
0x0000, 0x1D0C, /* l with stroke */
|
|
0x0000, 0xA7FA, /* turned m */
|
|
0x0000, 0x1D0E, /* reversed n */
|
|
0x0000, 0x1D10, /* open o */
|
|
0x0000, 0x1D15, /* ou */
|
|
0x0000, 0x1D23, /* ezh */
|
|
0x0000, 0x1D26, /* gamma */
|
|
0x0000, 0x1D27, /* lamda */
|
|
0x0000, 0x1D28, /* pi */
|
|
0x0000, 0x1D29, /* rho */
|
|
0x0000, 0x1D2A, /* psi */
|
|
0x0000, 0x1D2B, /* el */
|
|
0x0000, 0xA776, /* rum */
|
|
|
|
0x0000, 0x1DDB, /* combining g */
|
|
0x0000, 0x1DDE, /* combining l */
|
|
0x0000, 0x1DDF, /* combining m */
|
|
0x0000, 0x1DE1, /* combining n */
|
|
0x0000, 0x1DE2, /* combining r */
|
|
|
|
0x0000, 0x1DA6, /* modifier i */
|
|
0x0000, 0x1DA7, /* modifier i with stroke */
|
|
0x0000, 0x1DAB, /* modifier l */
|
|
0x0000, 0x1DB0, /* modifier n */
|
|
0x0000, 0x1DB8, /* modifier u */
|
|
#endif
|
|
0, 0};
|
|
|
|
static lwc_string *glypharray[0xffff + 1];
|
|
|
|
static struct List ami_diskfontlib_list;
|
|
|
|
static inline 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 inline 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);
|
|
static inline ULONG ami_font_unicode_width(const char *string, ULONG length,
|
|
const plot_font_style_t *fstyle, ULONG x, ULONG y, bool aa);
|
|
|
|
static inline int amiga_nsfont_utf16_char_length(const uint16 *char1)
|
|
{
|
|
if (__builtin_expect(((*char1 < 0xD800) || (0xDBFF < *char1)), 1)) {
|
|
return 1;
|
|
} else {
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
static inline uint32 amiga_nsfont_decode_surrogate(const uint16 *char1)
|
|
{
|
|
if(__builtin_expect((amiga_nsfont_utf16_char_length(char1) == 2), 0)) {
|
|
return ((uint32)char1[0] << 10) + char1[1] - 0x35FDC00;
|
|
} else {
|
|
return (uint32)*char1;
|
|
}
|
|
}
|
|
|
|
static nserror amiga_nsfont_width(const plot_font_style_t *fstyle,
|
|
const char *string, size_t length,
|
|
int *width)
|
|
{
|
|
*width = ami_font_unicode_width(string, length, fstyle, 0, 0, false);
|
|
|
|
if(*width <= 0) {
|
|
*width = length; /* fudge */
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
/**
|
|
* Find the position in a string where an x coordinate falls.
|
|
*
|
|
* \param fstyle style for this text
|
|
* \param string UTF-8 string to measure
|
|
* \param length length of string
|
|
* \param x x coordinate to search for
|
|
* \param char_offset updated to offset in string of actual_x, [0..length]
|
|
* \param actual_x updated to x coordinate of character closest to x
|
|
* \return true on success, false on error and error reported
|
|
*/
|
|
|
|
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)
|
|
{
|
|
uint16 *utf16 = NULL, *outf16 = NULL;
|
|
uint16 *utf16next = NULL;
|
|
struct OutlineFont *ofont, *ufont = NULL;
|
|
int tx = 0;
|
|
uint32 utf8_pos = 0;
|
|
int utf16charlen;
|
|
ULONG emwidth = (ULONG)NSA_FONT_EMWIDTH(fstyle->size);
|
|
int32 tempx;
|
|
|
|
if(utf8_to_enc(string,"UTF-16",length,(char **)&utf16) != NSERROR_OK) return NSERROR_INVALID;
|
|
outf16 = utf16;
|
|
if(!(ofont = ami_open_outline_font(fstyle, 0))) return NSERROR_INVALID;
|
|
|
|
*char_offset = 0;
|
|
*actual_x = 0;
|
|
|
|
while (utf8_pos < length) {
|
|
utf16charlen = amiga_nsfont_utf16_char_length(utf16);
|
|
utf16next = &utf16[utf16charlen];
|
|
|
|
tempx = ami_font_width_glyph(ofont, utf16, utf16next, emwidth);
|
|
|
|
if (tempx == 0) {
|
|
if (ufont == NULL)
|
|
ufont = ami_open_outline_font(fstyle, utf16);
|
|
|
|
if (ufont)
|
|
tempx = ami_font_width_glyph(ufont, utf16,
|
|
utf16next, emwidth);
|
|
}
|
|
|
|
tx += tempx;
|
|
utf16 = utf16next;
|
|
utf8_pos = utf8_next(string, length, utf8_pos);
|
|
|
|
if(tx < x) {
|
|
*actual_x = tx;
|
|
*char_offset = utf8_pos;
|
|
} else {
|
|
if((x - *actual_x) > (tx - x)) {
|
|
*actual_x = tx;
|
|
*char_offset = utf8_pos;
|
|
}
|
|
free(outf16);
|
|
return NSERROR_OK;
|
|
}
|
|
}
|
|
|
|
*actual_x = tx;
|
|
*char_offset = length;
|
|
|
|
free(outf16);
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Find where to split a string to make it fit a width.
|
|
*
|
|
* \param fstyle style for this text
|
|
* \param string UTF-8 string to measure
|
|
* \param length length of string
|
|
* \param x width available
|
|
* \param char_offset updated to offset in string of actual_x, [1..length]
|
|
* \param actual_x updated to x coordinate of character closest to x
|
|
* \return 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
|
|
*/
|
|
|
|
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)
|
|
{
|
|
uint16 *utf16_str = NULL;
|
|
const uint16 *utf16 = NULL;
|
|
const uint16 *utf16next = NULL;
|
|
struct OutlineFont *ofont, *ufont = NULL;
|
|
int tx = 0;
|
|
uint32 utf8_pos = 0;
|
|
int32 tempx = 0;
|
|
ULONG emwidth = (ULONG)NSA_FONT_EMWIDTH(fstyle->size);
|
|
|
|
/* Get utf16 conversion of string for glyph measuring routines */
|
|
if (utf8_to_enc(string, "UTF-16", length, (char **)&utf16_str) !=
|
|
NSERROR_OK)
|
|
return NSERROR_INVALID;
|
|
|
|
utf16 = utf16_str;
|
|
if (!(ofont = ami_open_outline_font(fstyle, 0)))
|
|
return NSERROR_INVALID;
|
|
|
|
*char_offset = 0;
|
|
*actual_x = 0;
|
|
|
|
if (*utf16 == 0xFEFF) utf16++;
|
|
|
|
while (utf8_pos < length) {
|
|
if ((*utf16 < 0xD800) || (0xDBFF < *utf16))
|
|
utf16next = utf16 + 1;
|
|
else
|
|
utf16next = utf16 + 2;
|
|
|
|
tempx = ami_font_width_glyph(ofont, utf16, utf16next, emwidth);
|
|
|
|
if (tempx == 0) {
|
|
if (ufont == NULL)
|
|
ufont = ami_open_outline_font(fstyle, utf16);
|
|
|
|
if (ufont)
|
|
tempx = ami_font_width_glyph(ufont, utf16,
|
|
utf16next, emwidth);
|
|
}
|
|
|
|
/* Check whether we have a space */
|
|
if (*(string + utf8_pos) == ' ') {
|
|
/* Got a space */
|
|
*actual_x = tx;
|
|
*char_offset = utf8_pos;
|
|
}
|
|
|
|
tx += tempx;
|
|
if ((x < tx) && (*char_offset != 0)) {
|
|
/* Reached available width, and a space was found;
|
|
* split there. */
|
|
free(utf16_str);
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
utf16 = utf16next;
|
|
utf8_pos = utf8_next(string, length, utf8_pos);
|
|
}
|
|
|
|
free(utf16_str);
|
|
|
|
/* No spaces to split at, or everything fits */
|
|
assert(*char_offset == 0 || x >= tx);
|
|
|
|
*char_offset = length;
|
|
*actual_x = tx;
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
/**
|
|
* Search for a font in the list and load from disk if not present
|
|
*/
|
|
static struct ami_font_cache_node *ami_font_open(const char *font, bool critical)
|
|
{
|
|
if(font == NULL) {
|
|
NSLOG(netsurf, INFO, "Requested NULL font");
|
|
return NULL;
|
|
}
|
|
|
|
struct ami_font_cache_node *nodedata = ami_font_cache_locate(font);
|
|
if(nodedata) return nodedata;
|
|
|
|
nodedata = ami_font_cache_alloc_entry(font);
|
|
|
|
if(nodedata == NULL) {
|
|
amiga_warn_user("NoMemory", "");
|
|
return NULL;
|
|
}
|
|
|
|
nodedata->font = OpenOutlineFont(font, &ami_diskfontlib_list, OFF_OPEN);
|
|
|
|
if(!nodedata->font)
|
|
{
|
|
NSLOG(netsurf, INFO, "Requested font not found: %s", font);
|
|
if(critical == true) amiga_warn_user("CompError", font);
|
|
free(nodedata);
|
|
return NULL;
|
|
}
|
|
|
|
nodedata->bold = (char *)GetTagData(OT_BName, 0, nodedata->font->olf_OTagList);
|
|
if(nodedata->bold)
|
|
NSLOG(netsurf, INFO, "Bold font defined for %s is %s", font,
|
|
nodedata->bold);
|
|
else
|
|
NSLOG(netsurf, INFO,
|
|
"Warning: No designed bold font defined for %s", font);
|
|
|
|
nodedata->italic = (char *)GetTagData(OT_IName, 0, nodedata->font->olf_OTagList);
|
|
if(nodedata->italic)
|
|
NSLOG(netsurf, INFO, "Italic font defined for %s is %s",
|
|
font, nodedata->italic);
|
|
else
|
|
NSLOG(netsurf, INFO,
|
|
"Warning: No designed italic font defined for %s", font);
|
|
|
|
nodedata->bolditalic = (char *)GetTagData(OT_BIName, 0, nodedata->font->olf_OTagList);
|
|
if(nodedata->bolditalic)
|
|
NSLOG(netsurf, INFO, "Bold-italic font defined for %s is %s",
|
|
font, nodedata->bolditalic);
|
|
else
|
|
NSLOG(netsurf, INFO,
|
|
"Warning: No designed bold-italic font defined for %s",
|
|
font);
|
|
|
|
ami_font_cache_insert(nodedata, font);
|
|
return nodedata;
|
|
}
|
|
|
|
/**
|
|
* Open an outline font in the specified size and style
|
|
*
|
|
* \param fstyle font style structure
|
|
* \param codepoint open a default font instead of the one specified by fstyle
|
|
* \return outline font or NULL on error
|
|
*/
|
|
static struct OutlineFont *ami_open_outline_font(const plot_font_style_t *fstyle,
|
|
const uint16 *codepoint)
|
|
{
|
|
struct ami_font_cache_node *node;
|
|
struct ami_font_cache_node *designed_node = NULL;
|
|
struct OutlineFont *ofont;
|
|
char *fontname;
|
|
ULONG ysize;
|
|
int tstyle = 0;
|
|
plot_font_generic_family_t fontfamily;
|
|
ULONG emboldenx = 0;
|
|
ULONG emboldeny = 0;
|
|
ULONG shearsin = 0;
|
|
ULONG shearcos = (1 << 16);
|
|
|
|
if(codepoint) fontfamily = NSA_UNICODE_FONT;
|
|
else fontfamily = fstyle->family;
|
|
|
|
switch(fontfamily)
|
|
{
|
|
case PLOT_FONT_FAMILY_SANS_SERIF:
|
|
fontname = nsoption_charp(font_sans);
|
|
break;
|
|
case PLOT_FONT_FAMILY_SERIF:
|
|
fontname = nsoption_charp(font_serif);
|
|
break;
|
|
case PLOT_FONT_FAMILY_MONOSPACE:
|
|
fontname = nsoption_charp(font_mono);
|
|
break;
|
|
case PLOT_FONT_FAMILY_CURSIVE:
|
|
fontname = nsoption_charp(font_cursive);
|
|
break;
|
|
case PLOT_FONT_FAMILY_FANTASY:
|
|
fontname = nsoption_charp(font_fantasy);
|
|
break;
|
|
case NSA_UNICODE_FONT:
|
|
default:
|
|
if(__builtin_expect((amiga_nsfont_utf16_char_length(codepoint) == 2), 0)) {
|
|
/* Multi-byte character */
|
|
fontname = nsoption_charp(font_surrogate);
|
|
} else {
|
|
fontname = (char *)ami_font_scan_lookup(codepoint, glypharray);
|
|
}
|
|
if(fontname == NULL) return NULL;
|
|
break;
|
|
}
|
|
|
|
node = ami_font_open(fontname, true);
|
|
if(!node) return NULL;
|
|
|
|
if (fstyle->flags & FONTF_OBLIQUE)
|
|
tstyle = NSA_OBLIQUE;
|
|
|
|
if (fstyle->flags & FONTF_ITALIC)
|
|
tstyle = NSA_ITALIC;
|
|
|
|
if (fstyle->weight >= 700)
|
|
tstyle += NSA_BOLD;
|
|
|
|
switch(tstyle)
|
|
{
|
|
case NSA_ITALIC:
|
|
if(node->italic) designed_node = ami_font_open(node->italic, false);
|
|
|
|
if(designed_node == NULL) {
|
|
shearsin = NSA_VALUE_SHEARSIN;
|
|
shearcos = NSA_VALUE_SHEARCOS;
|
|
}
|
|
break;
|
|
|
|
case NSA_OBLIQUE:
|
|
shearsin = NSA_VALUE_SHEARSIN;
|
|
shearcos = NSA_VALUE_SHEARCOS;
|
|
break;
|
|
|
|
case NSA_BOLD:
|
|
if(node->bold) designed_node = ami_font_open(node->bold, false);
|
|
|
|
if(designed_node == NULL) {
|
|
emboldenx = NSA_VALUE_BOLDX;
|
|
emboldeny = NSA_VALUE_BOLDY;
|
|
}
|
|
break;
|
|
|
|
case NSA_BOLDOBLIQUE:
|
|
shearsin = NSA_VALUE_SHEARSIN;
|
|
shearcos = NSA_VALUE_SHEARCOS;
|
|
|
|
if(node->bold) designed_node = ami_font_open(node->bold, false);
|
|
|
|
if(designed_node == NULL) {
|
|
emboldenx = NSA_VALUE_BOLDX;
|
|
emboldeny = NSA_VALUE_BOLDY;
|
|
}
|
|
break;
|
|
|
|
case NSA_BOLDITALIC:
|
|
if(node->bolditalic) designed_node = ami_font_open(node->bolditalic, false);
|
|
|
|
if(designed_node == NULL) {
|
|
emboldenx = NSA_VALUE_BOLDX;
|
|
emboldeny = NSA_VALUE_BOLDY;
|
|
shearsin = NSA_VALUE_SHEARSIN;
|
|
shearcos = NSA_VALUE_SHEARCOS;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* Scale to 16.16 fixed point */
|
|
ysize = fstyle->size * ((1 << 16) / PLOT_STYLE_SCALE);
|
|
|
|
if(designed_node == NULL) {
|
|
ofont = node->font;
|
|
} else {
|
|
ofont = designed_node->font;
|
|
}
|
|
|
|
#ifndef __amigaos4__
|
|
struct BulletBase *BulletBase = ofont->BulletBase;
|
|
#endif
|
|
|
|
if(ESetInfo(AMI_OFONT_ENGINE,
|
|
OT_DeviceDPI, ami_font_dpi_get_devicedpi(),
|
|
OT_PointHeight, ysize,
|
|
OT_EmboldenX, emboldenx,
|
|
OT_EmboldenY, emboldeny,
|
|
OT_ShearSin, shearsin,
|
|
OT_ShearCos, shearcos,
|
|
TAG_END) == OTERR_Success)
|
|
return ofont;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline 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)
|
|
{
|
|
struct GlyphMap *glyph;
|
|
UBYTE *glyphbm;
|
|
int32 char_advance = 0;
|
|
FIXED kern = 0;
|
|
ULONG glyphmaptag;
|
|
ULONG template_type;
|
|
bool skip_c2 = false;
|
|
uint32 long_char_1 = 0, long_char_2 = 0;
|
|
#ifndef __amigaos4__
|
|
struct BulletBase *BulletBase = ofont->BulletBase;
|
|
#endif
|
|
|
|
#ifndef __amigaos4__
|
|
if (__builtin_expect(((*char1 >= 0xD800) && (*char1 <= 0xDBFF)), 0)) {
|
|
/* We don't support UTF-16 surrogates yet, so just return. */
|
|
return 0;
|
|
}
|
|
|
|
if (__builtin_expect(((*char2 >= 0xD800) && (*char2 <= 0xDBFF)), 0)) {
|
|
/* Don't attempt to kern a UTF-16 surrogate */
|
|
*char2 = 0;
|
|
}
|
|
#endif
|
|
|
|
if (*char2 < 0x0020) skip_c2 = true;
|
|
|
|
#ifdef __amigaos4__
|
|
if(__builtin_expect(aa == true, 1)) {
|
|
glyphmaptag = OT_GlyphMap8Bit;
|
|
template_type = BLITT_ALPHATEMPLATE;
|
|
} else {
|
|
#endif
|
|
glyphmaptag = OT_GlyphMap;
|
|
#ifdef __amigaos4__
|
|
template_type = BLITT_TEMPLATE;
|
|
}
|
|
#endif
|
|
|
|
long_char_1 = amiga_nsfont_decode_surrogate(char1);
|
|
long_char_2 = amiga_nsfont_decode_surrogate(char2);
|
|
/**\todo use OT_GlyphCode_32 so we get an error for old font engines */
|
|
|
|
if(ESetInfo(AMI_OFONT_ENGINE,
|
|
OT_GlyphCode, long_char_1,
|
|
OT_GlyphCode2, long_char_2,
|
|
TAG_END) == OTERR_Success)
|
|
{
|
|
if(EObtainInfo(AMI_OFONT_ENGINE,
|
|
glyphmaptag, &glyph,
|
|
TAG_END) == 0)
|
|
{
|
|
glyphbm = glyph->glm_BitMap;
|
|
if(!glyphbm) return 0;
|
|
|
|
if(rp) {
|
|
#ifdef __amigaos4__
|
|
BltBitMapTags(BLITA_SrcX, glyph->glm_BlackLeft,
|
|
BLITA_SrcY, glyph->glm_BlackTop,
|
|
BLITA_DestX, x - glyph->glm_X0 + glyph->glm_BlackLeft,
|
|
BLITA_DestY, y - glyph->glm_Y0 + glyph->glm_BlackTop,
|
|
BLITA_Width, glyph->glm_BlackWidth,
|
|
BLITA_Height, glyph->glm_BlackHeight,
|
|
BLITA_Source, glyphbm,
|
|
BLITA_SrcType, template_type,
|
|
BLITA_Dest, rp,
|
|
BLITA_DestType, BLITT_RASTPORT,
|
|
BLITA_SrcBytesPerRow, glyph->glm_BMModulo,
|
|
TAG_DONE);
|
|
#else
|
|
/* On OS3 the glyph needs to be in chip RAM */
|
|
void *chip_glyph = ami_memory_chip_alloc(glyph->glm_BMModulo * glyph->glm_BMRows);
|
|
if(chip_glyph != NULL) {
|
|
CopyMem(glyphbm, chip_glyph, glyph->glm_BMModulo * glyph->glm_BMRows);
|
|
|
|
BltTemplate(chip_glyph + (glyph->glm_BMModulo * glyph->glm_BlackTop) +
|
|
((glyph->glm_BlackLeft >> 4) << 1),
|
|
glyph->glm_BlackLeft & 0xF, glyph->glm_BMModulo, rp,
|
|
x - glyph->glm_X0 + glyph->glm_BlackLeft,
|
|
y - glyph->glm_Y0 + glyph->glm_BlackTop,
|
|
glyph->glm_BlackWidth, glyph->glm_BlackHeight);
|
|
|
|
ami_memory_chip_free(chip_glyph);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
kern = 0;
|
|
|
|
if((*char2) && (!skip_c2)) EObtainInfo(AMI_OFONT_ENGINE,
|
|
OT_TextKernPair, &kern,
|
|
TAG_END);
|
|
|
|
char_advance = (ULONG)(((glyph->glm_Width - kern) * emwidth) / 65536);
|
|
|
|
EReleaseInfo(AMI_OFONT_ENGINE,
|
|
glyphmaptag, glyph,
|
|
TAG_END);
|
|
|
|
if((*char2) && (!skip_c2)) EReleaseInfo(AMI_OFONT_ENGINE,
|
|
OT_TextKernPair, kern,
|
|
TAG_END);
|
|
}
|
|
}
|
|
|
|
return char_advance;
|
|
}
|
|
|
|
static inline int32 ami_font_width_glyph(struct OutlineFont *ofont,
|
|
const uint16 *restrict char1, const uint16 *restrict char2, uint32 emwidth)
|
|
{
|
|
int32 char_advance = 0;
|
|
FIXED kern = 0;
|
|
struct MinList *gwlist = NULL;
|
|
struct GlyphWidthEntry *gwnode;
|
|
bool skip_c2 = false;
|
|
uint32 long_char_1 = 0;
|
|
uint32 long_char_2;
|
|
#ifndef __amigaos4__
|
|
struct BulletBase *BulletBase = ofont->BulletBase;
|
|
#endif
|
|
|
|
#ifndef __amigaos4__
|
|
if (__builtin_expect(((*char1 >= 0xD800) && (*char1 <= 0xDBFF)), 0)) {
|
|
/* We don't support UTF-16 surrogates yet, so just return. */
|
|
return 0;
|
|
}
|
|
|
|
if (__builtin_expect(((*char2 >= 0xD800) && (*char2 <= 0xDBFF)), 0)) {
|
|
/* Don't attempt to kern a UTF-16 surrogate */
|
|
skip_c2 = true;
|
|
}
|
|
#endif
|
|
|
|
if (*char2 < 0x0020) skip_c2 = true;
|
|
|
|
long_char_1 = amiga_nsfont_decode_surrogate(char1);
|
|
/**\todo use OT_GlyphCode_32 so we get an error for old font engines */
|
|
|
|
if(ESetInfo(AMI_OFONT_ENGINE,
|
|
OT_GlyphCode, long_char_1,
|
|
OT_GlyphCode2, long_char_1,
|
|
TAG_END) == OTERR_Success)
|
|
{
|
|
if(EObtainInfo(AMI_OFONT_ENGINE,
|
|
OT_WidthList, &gwlist,
|
|
TAG_END) == 0)
|
|
{
|
|
FIXED char1w = 0;
|
|
gwnode = (struct GlyphWidthEntry *)GetHead((struct List *)gwlist);
|
|
if(gwnode) char1w = gwnode->gwe_Width;
|
|
|
|
kern = 0;
|
|
|
|
if(!skip_c2) {
|
|
long_char_2 = amiga_nsfont_decode_surrogate(char2);
|
|
if(ESetInfo(AMI_OFONT_ENGINE,
|
|
OT_GlyphCode, long_char_1,
|
|
OT_GlyphCode2, long_char_2,
|
|
TAG_END) == OTERR_Success)
|
|
{
|
|
EObtainInfo(AMI_OFONT_ENGINE,
|
|
OT_TextKernPair, &kern,
|
|
TAG_END);
|
|
}
|
|
}
|
|
char_advance = (ULONG)(((char1w - kern) * emwidth) / 65536);
|
|
|
|
if(!skip_c2) EReleaseInfo(AMI_OFONT_ENGINE,
|
|
OT_TextKernPair, kern,
|
|
TAG_END);
|
|
|
|
EReleaseInfo(AMI_OFONT_ENGINE,
|
|
OT_WidthList, gwlist,
|
|
TAG_END);
|
|
}
|
|
}
|
|
|
|
return char_advance;
|
|
}
|
|
|
|
static const uint16 *ami_font_translate_smallcaps(uint16 *utf16char)
|
|
{
|
|
const uint16 *p;
|
|
p = &sc_table[0];
|
|
|
|
while (*p != 0)
|
|
{
|
|
if(*p == *utf16char) return &p[1];
|
|
p++;
|
|
}
|
|
|
|
return 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)
|
|
{
|
|
uint16 *restrict utf16 = NULL, *restrict outf16 = NULL;
|
|
uint16 *restrict utf16charsc = 0, *restrict utf16nextsc = 0;
|
|
uint16 *restrict utf16next = 0;
|
|
int utf16charlen;
|
|
struct OutlineFont *restrict ofont, *restrict ufont = NULL;
|
|
uint32 x=0;
|
|
int32 tempx = 0;
|
|
ULONG emwidth = (ULONG)NSA_FONT_EMWIDTH(fstyle->size);
|
|
uint16 utf16_a = 0x41;
|
|
|
|
if(!string || string[0]=='\0') return 0;
|
|
if(!length) return 0;
|
|
if(rp == NULL) return 0;
|
|
|
|
if(utf8_to_enc(string,"UTF-16",length,(char **)&utf16) != NSERROR_OK) return 0;
|
|
outf16 = utf16;
|
|
if(!(ofont = ami_open_outline_font(fstyle, 0))) {
|
|
if(!(ofont = ami_open_outline_font(fstyle, &utf16_a))) return 0;
|
|
}
|
|
|
|
while(*utf16 != 0)
|
|
{
|
|
utf16charlen = amiga_nsfont_utf16_char_length(utf16);
|
|
utf16next = &utf16[utf16charlen];
|
|
|
|
if(fstyle->flags & FONTF_SMALLCAPS)
|
|
{
|
|
utf16charsc = (uint16 *)ami_font_translate_smallcaps(utf16);
|
|
utf16nextsc = (uint16 *)ami_font_translate_smallcaps(utf16next);
|
|
|
|
tempx = ami_font_plot_glyph(ofont, rp, utf16charsc, utf16nextsc,
|
|
dx + x, dy, emwidth, aa);
|
|
}
|
|
else tempx = 0;
|
|
|
|
if(tempx == 0) {
|
|
tempx = ami_font_plot_glyph(ofont, rp, utf16, utf16next,
|
|
dx + x, dy, emwidth, aa);
|
|
}
|
|
|
|
if(tempx == 0)
|
|
{
|
|
if(ufont == NULL)
|
|
{
|
|
ufont = ami_open_outline_font(fstyle, utf16);
|
|
}
|
|
|
|
if(ufont) {
|
|
tempx = ami_font_plot_glyph(ufont, rp, utf16, utf16next,
|
|
dx + x, dy, emwidth, aa);
|
|
}
|
|
}
|
|
|
|
x += tempx;
|
|
|
|
utf16 += utf16charlen;
|
|
}
|
|
|
|
free(outf16);
|
|
return x;
|
|
}
|
|
|
|
static inline ULONG ami_font_unicode_width(const char *string, ULONG length,
|
|
const plot_font_style_t *fstyle, ULONG dx, ULONG dy, bool aa)
|
|
{
|
|
uint16 *restrict utf16 = NULL, *restrict outf16 = NULL;
|
|
uint16 *restrict utf16charsc = 0, *restrict utf16nextsc = 0;
|
|
uint16 *restrict utf16next = 0;
|
|
int utf16charlen;
|
|
struct OutlineFont *restrict ofont, *restrict ufont = NULL;
|
|
uint32 x=0;
|
|
int32 tempx = 0;
|
|
ULONG emwidth = (ULONG)NSA_FONT_EMWIDTH(fstyle->size);
|
|
uint16 utf16_a = 0x41;
|
|
|
|
if(!string || string[0]=='\0') return 0;
|
|
if(!length) return 0;
|
|
|
|
if(utf8_to_enc(string,"UTF-16",length,(char **)&utf16) != NSERROR_OK) return 0;
|
|
outf16 = utf16;
|
|
if(!(ofont = ami_open_outline_font(fstyle, 0))) {
|
|
if(!(ofont = ami_open_outline_font(fstyle, &utf16_a))) return 0;
|
|
}
|
|
|
|
while(*utf16 != 0)
|
|
{
|
|
utf16charlen = amiga_nsfont_utf16_char_length(utf16);
|
|
utf16next = &utf16[utf16charlen];
|
|
|
|
if(fstyle->flags & FONTF_SMALLCAPS)
|
|
{
|
|
utf16charsc = (uint16 *)ami_font_translate_smallcaps(utf16);
|
|
utf16nextsc = (uint16 *)ami_font_translate_smallcaps(utf16next);
|
|
|
|
tempx = ami_font_width_glyph(ofont, utf16charsc, utf16nextsc, emwidth);
|
|
}
|
|
else tempx = 0;
|
|
|
|
if(tempx == 0) {
|
|
tempx = ami_font_width_glyph(ofont, utf16, utf16next, emwidth);
|
|
}
|
|
|
|
if(tempx == 0)
|
|
{
|
|
if(ufont == NULL)
|
|
{
|
|
ufont = ami_open_outline_font(fstyle, utf16);
|
|
}
|
|
|
|
if(ufont)
|
|
{
|
|
tempx = ami_font_width_glyph(ufont, utf16, utf16next, emwidth);
|
|
}
|
|
}
|
|
|
|
x += tempx;
|
|
|
|
utf16 += utf16charlen;
|
|
}
|
|
|
|
free(outf16);
|
|
return x;
|
|
}
|
|
|
|
void ami_font_bullet_close(void *nso)
|
|
{
|
|
struct ami_font_cache_node *node = (struct ami_font_cache_node *)nso;
|
|
CloseOutlineFont(node->font, &ami_diskfontlib_list);
|
|
}
|
|
|
|
const struct ami_font_functions ami_font_bullet_table = {
|
|
amiga_nsfont_width,
|
|
amiga_nsfont_position_in_string,
|
|
amiga_nsfont_split,
|
|
amiga_nsfont_text
|
|
};
|
|
|
|
void ami_font_bullet_init(void)
|
|
{
|
|
/* Initialise Unicode font scanner */
|
|
ami_font_initscanner(false, true);
|
|
|
|
/* Initialise font caching etc lists */
|
|
ami_font_cache_init();
|
|
|
|
/* List for diskfont internal cache */
|
|
NewList(&ami_diskfontlib_list);
|
|
|
|
/* Set up table */
|
|
ami_nsfont = &ami_font_bullet_table;
|
|
}
|
|
|
|
void ami_font_bullet_fini(void)
|
|
{
|
|
ami_font_cache_fini();
|
|
ami_font_finiscanner();
|
|
}
|
|
|
|
/* Font scanner */
|
|
void ami_font_initscanner(bool force, bool save)
|
|
{
|
|
ami_font_scan_init(nsoption_charp(font_unicode_file), force, save, glypharray);
|
|
}
|
|
|
|
void ami_font_finiscanner(void)
|
|
{
|
|
ami_font_scan_fini(glypharray);
|
|
}
|
|
|
|
void ami_font_savescanner(void)
|
|
{
|
|
ami_font_scan_save(nsoption_charp(font_unicode_file), glypharray);
|
|
}
|
|
|