freetype2/src/sfnt/sfdriver.c

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/****************************************************************************
*
* sfdriver.c
*
* High-level SFNT driver interface (body).
*
2023-01-17 09:18:25 +01:00
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
2000-12-08 17:17:16 +01:00
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/sfnt.h>
#include <freetype/internal/ftobjs.h>
#include <freetype/ttnameid.h>
#include "sfdriver.h"
#include "ttload.h"
#include "sfobjs.h"
#include "sferrors.h"
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
#include "ttsbit.h"
#endif
[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-13 03:25:09 +02:00
#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
#include "ttcolr.h"
#include "ttcpal.h"
[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-13 03:25:09 +02:00
#endif
Add code to load OT-SVG glyph documents. * include/freetype/config/ftheader.h (FT_OTSVG_H): New macro. * include/freetype/freetype.h (FT_FACE_FLAG_SVG, FT_HAS_SVG): New macros. (FT_LOAD_SVG_ONLY): New internal macro. * include/freetype/ftimage.h (FT_Glyph_Format): New enumeration value `FT_GLYPH_FORMAT_SVG`. * include/freetype/internal/ftobjs.h (FT_GLYPH_OWN_GZIP_SVG): New macro. * include/freetype/internal/fttrace.h: Add `ttsvg` for `ttsvg.c`. * include/freetype/internal/sfnt.h(load_svg, free_svg, load_svg_doc): New functions. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `svg` for the SVG table. * include/freetype/otsvg.h (FT_SVG_DocumentRec): New structure to hold the SVG document and other necessary information of an OT-SVG glyph in a glyph slot. * include/freetype/tttags.h (TTAG_SVG): New macro. * src/base/ftobjs.c: Include `otsvg.h`. (ft_glyphslot_init): Allocate `FT_SVG_DocumentRec` in `slot->other` if the SVG table exists. (ft_glyphslot_clear): Free it upon clean-up if it is a GZIP compressed glyph. (ft_glyphslot_done): Free the document data if it is a GZIP compressed glyph. (FT_Load_Glyph): Don't auto-hint SVG documents. * src/cache/ftcbasic.c (ftc_basic_family_load_glyph): Add support for FT_GLYPH_FORMAT_SVG. * src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttsvg.c`. * src/sfnt/sfdriver.c: Include `ttsvg.h`. (sfnt_interface): Add `tt_face_load_svg`, `tt_face_free_svg` and `tt_face_load_svg_doc`. * src/sfnt/sfnt.c: Include `ttsvg.c`. * src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Add code to load and free data of the the SVG table. * src/sfnt/ttsvg.c: New file, implementing `tt_face_load_svg`, `tt_face_free_svg` and `tt_face_load_svg_doc`. * src/sfnt/ttsvg.h: Declarations of the SVG functions in `ttsvg.c`.
2021-12-26 04:20:44 +01:00
#ifdef FT_CONFIG_OPTION_SVG
#include "ttsvg.h"
#endif
#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
#include "ttpost.h"
#endif
#ifdef TT_CONFIG_OPTION_BDF
#include "ttbdf.h"
#include <freetype/internal/services/svbdf.h>
#endif
#include "ttcmap.h"
#include "ttkern.h"
#include "ttmtx.h"
#include <freetype/internal/services/svgldict.h>
#include <freetype/internal/services/svpostnm.h>
#include <freetype/internal/services/svsfnt.h>
#include <freetype/internal/services/svttcmap.h>
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
#include <freetype/ftmm.h>
#include <freetype/internal/services/svmm.h>
#endif
2012-08-24 13:41:24 +02:00
/**************************************************************************
*
* The macro FT_COMPONENT is used in trace mode. It is an implicit
* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
* messages during execution.
*/
#undef FT_COMPONENT
#define FT_COMPONENT sfdriver
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/*
* SFNT TABLE SERVICE
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*
*/
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FT_CALLBACK_DEF( FT_Error )
sfnt_load_table( FT_Face face, /* TT_Face */
FT_ULong tag,
FT_Long offset,
FT_Byte* buffer,
FT_ULong* length )
{
TT_Face ttface = (TT_Face)face;
return tt_face_load_any( ttface, tag, offset, buffer, length );
}
FT_CALLBACK_DEF( void* )
get_sfnt_table( FT_Face face, /* TT_Face */
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FT_Sfnt_Tag tag )
{
TT_Face ttface = (TT_Face)face;
void* table;
switch ( tag )
{
case FT_SFNT_HEAD:
table = &ttface->header;
break;
case FT_SFNT_HHEA:
table = &ttface->horizontal;
break;
case FT_SFNT_VHEA:
table = ttface->vertical_info ? &ttface->vertical : NULL;
break;
case FT_SFNT_OS2:
table = ( ttface->os2.version == 0xFFFFU ) ? NULL : &ttface->os2;
break;
case FT_SFNT_POST:
table = &ttface->postscript;
break;
case FT_SFNT_MAXP:
table = &ttface->max_profile;
break;
case FT_SFNT_PCLT:
table = ttface->pclt.Version ? &ttface->pclt : NULL;
break;
default:
table = NULL;
}
return table;
}
FT_CALLBACK_DEF( FT_Error )
sfnt_table_info( FT_Face face, /* TT_Face */
FT_UInt idx,
FT_ULong *tag,
FT_ULong *offset,
FT_ULong *length )
{
TT_Face ttface = (TT_Face)face;
if ( !offset || !length )
return FT_THROW( Invalid_Argument );
if ( !tag )
*length = ttface->num_tables;
else
{
if ( idx >= ttface->num_tables )
return FT_THROW( Table_Missing );
*tag = ttface->dir_tables[idx].Tag;
*offset = ttface->dir_tables[idx].Offset;
*length = ttface->dir_tables[idx].Length;
}
return FT_Err_Ok;
}
2012-08-24 13:41:24 +02:00
FT_DEFINE_SERVICE_SFNT_TABLEREC(
sfnt_service_sfnt_table,
(FT_SFNT_TableLoadFunc)sfnt_load_table, /* load_table */
2015-10-30 08:07:56 +01:00
(FT_SFNT_TableGetFunc) get_sfnt_table, /* get_table */
(FT_SFNT_TableInfoFunc)sfnt_table_info /* table_info */
)
#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
2012-08-24 13:41:24 +02:00
/*
* GLYPH DICT SERVICE
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*
*/
FT_CALLBACK_DEF( FT_Error )
sfnt_get_glyph_name( FT_Face face,
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FT_UInt glyph_index,
FT_Pointer buffer,
FT_UInt buffer_max )
{
FT_String* gname;
FT_Error error;
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error = tt_face_get_ps_name( (TT_Face)face, glyph_index, &gname );
if ( !error )
FT_STRCPYN( buffer, gname, buffer_max );
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return error;
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}
FT_CALLBACK_DEF( FT_UInt )
sfnt_get_name_index( FT_Face face,
const FT_String* glyph_name )
{
TT_Face ttface = (TT_Face)face;
2012-08-24 13:41:24 +02:00
FT_UInt i, max_gid = FT_UINT_MAX;
if ( face->num_glyphs < 0 )
return 0;
else if ( (FT_ULong)face->num_glyphs < FT_UINT_MAX )
max_gid = (FT_UInt)face->num_glyphs;
else
FT_TRACE0(( "Ignore glyph names for invalid GID 0x%08x - 0x%08lx\n",
FT_UINT_MAX, face->num_glyphs ));
for ( i = 0; i < max_gid; i++ )
{
FT_String* gname;
FT_Error error = tt_face_get_ps_name( ttface, i, &gname );
if ( error )
continue;
if ( !ft_strcmp( glyph_name, gname ) )
return i;
}
return 0;
}
2012-08-24 13:41:24 +02:00
FT_DEFINE_SERVICE_GLYPHDICTREC(
sfnt_service_glyph_dict,
(FT_GlyphDict_GetNameFunc) sfnt_get_glyph_name, /* get_name */
(FT_GlyphDict_NameIndexFunc)sfnt_get_name_index /* name_index */
)
#endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */
2003-09-17 07:26:33 +02:00
2012-08-24 13:41:24 +02:00
/*
* POSTSCRIPT NAME SERVICE
2012-08-24 13:41:24 +02:00
*
*/
/* an array representing allowed ASCII characters in a PS string */
static const unsigned char sfnt_ps_map[16] =
{
/* 4 0 C 8 */
0x00, 0x00, /* 0x00: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 */
0x00, 0x00, /* 0x10: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 */
0xDE, 0x7C, /* 0x20: 1 1 0 1 1 1 1 0 0 1 1 1 1 1 0 0 */
0xFF, 0xAF, /* 0x30: 1 1 1 1 1 1 1 1 1 0 1 0 1 1 1 1 */
0xFF, 0xFF, /* 0x40: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 */
0xFF, 0xD7, /* 0x50: 1 1 1 1 1 1 1 1 1 1 0 1 0 1 1 1 */
0xFF, 0xFF, /* 0x60: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 */
0xFF, 0x57 /* 0x70: 1 1 1 1 1 1 1 1 0 1 0 1 0 1 1 1 */
};
static int
sfnt_is_postscript( int c )
{
unsigned int cc;
if ( c < 0 || c >= 0x80 )
return 0;
cc = (unsigned int)c;
return sfnt_ps_map[cc >> 3] & ( 1 << ( cc & 0x07 ) );
}
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
/* Only ASCII letters and digits are taken for a variation font */
/* instance's PostScript name. */
/* */
/* `ft_isalnum' is a macro, but we need a function here, thus */
/* this definition. */
static int
sfnt_is_alphanumeric( int c )
{
return ft_isalnum( c );
}
/* the implementation of MurmurHash3 is taken and adapted from */
/* https://github.com/aappleby/smhasher/blob/master/src/MurmurHash3.cpp */
#define ROTL32( x, r ) ( x << r ) | ( x >> ( 32 - r ) )
static FT_UInt32
fmix32( FT_UInt32 h )
{
h ^= h >> 16;
h *= 0x85ebca6b;
h ^= h >> 13;
h *= 0xc2b2ae35;
h ^= h >> 16;
return h;
}
static void
murmur_hash_3_128( const void* key,
const unsigned int len,
FT_UInt32 seed,
void* out )
{
const FT_Byte* data = (const FT_Byte*)key;
const int nblocks = (int)len / 16;
FT_UInt32 h1 = seed;
FT_UInt32 h2 = seed;
FT_UInt32 h3 = seed;
FT_UInt32 h4 = seed;
const FT_UInt32 c1 = 0x239b961b;
const FT_UInt32 c2 = 0xab0e9789;
const FT_UInt32 c3 = 0x38b34ae5;
const FT_UInt32 c4 = 0xa1e38b93;
const FT_UInt32* blocks = (const FT_UInt32*)( data + nblocks * 16 );
int i;
for( i = -nblocks; i; i++ )
{
FT_UInt32 k1 = blocks[i * 4 + 0];
FT_UInt32 k2 = blocks[i * 4 + 1];
FT_UInt32 k3 = blocks[i * 4 + 2];
FT_UInt32 k4 = blocks[i * 4 + 3];
k1 *= c1;
k1 = ROTL32( k1, 15 );
k1 *= c2;
h1 ^= k1;
h1 = ROTL32( h1, 19 );
h1 += h2;
h1 = h1 * 5 + 0x561ccd1b;
k2 *= c2;
k2 = ROTL32( k2, 16 );
k2 *= c3;
h2 ^= k2;
h2 = ROTL32( h2, 17 );
h2 += h3;
h2 = h2 * 5 + 0x0bcaa747;
k3 *= c3;
k3 = ROTL32( k3, 17 );
k3 *= c4;
h3 ^= k3;
h3 = ROTL32( h3, 15 );
h3 += h4;
h3 = h3 * 5 + 0x96cd1c35;
k4 *= c4;
k4 = ROTL32( k4, 18 );
k4 *= c1;
h4 ^= k4;
h4 = ROTL32( h4, 13 );
h4 += h1;
h4 = h4 * 5 + 0x32ac3b17;
}
{
const FT_Byte* tail = (const FT_Byte*)( data + nblocks * 16 );
FT_UInt32 k1 = 0;
FT_UInt32 k2 = 0;
FT_UInt32 k3 = 0;
FT_UInt32 k4 = 0;
switch ( len & 15 )
{
case 15:
k4 ^= (FT_UInt32)tail[14] << 16;
FALL_THROUGH;
case 14:
k4 ^= (FT_UInt32)tail[13] << 8;
FALL_THROUGH;
case 13:
k4 ^= (FT_UInt32)tail[12];
k4 *= c4;
k4 = ROTL32( k4, 18 );
k4 *= c1;
h4 ^= k4;
FALL_THROUGH;
case 12:
k3 ^= (FT_UInt32)tail[11] << 24;
FALL_THROUGH;
case 11:
k3 ^= (FT_UInt32)tail[10] << 16;
FALL_THROUGH;
case 10:
k3 ^= (FT_UInt32)tail[9] << 8;
FALL_THROUGH;
case 9:
k3 ^= (FT_UInt32)tail[8];
k3 *= c3;
k3 = ROTL32( k3, 17 );
k3 *= c4;
h3 ^= k3;
FALL_THROUGH;
case 8:
k2 ^= (FT_UInt32)tail[7] << 24;
FALL_THROUGH;
case 7:
k2 ^= (FT_UInt32)tail[6] << 16;
FALL_THROUGH;
case 6:
k2 ^= (FT_UInt32)tail[5] << 8;
FALL_THROUGH;
case 5:
k2 ^= (FT_UInt32)tail[4];
k2 *= c2;
k2 = ROTL32( k2, 16 );
k2 *= c3;
h2 ^= k2;
FALL_THROUGH;
case 4:
k1 ^= (FT_UInt32)tail[3] << 24;
FALL_THROUGH;
case 3:
k1 ^= (FT_UInt32)tail[2] << 16;
FALL_THROUGH;
case 2:
k1 ^= (FT_UInt32)tail[1] << 8;
FALL_THROUGH;
case 1:
k1 ^= (FT_UInt32)tail[0];
k1 *= c1;
k1 = ROTL32( k1, 15 );
k1 *= c2;
h1 ^= k1;
}
}
h1 ^= len;
h2 ^= len;
h3 ^= len;
h4 ^= len;
h1 += h2;
h1 += h3;
h1 += h4;
h2 += h1;
h3 += h1;
h4 += h1;
h1 = fmix32( h1 );
h2 = fmix32( h2 );
h3 = fmix32( h3 );
h4 = fmix32( h4 );
h1 += h2;
h1 += h3;
h1 += h4;
h2 += h1;
h3 += h1;
h4 += h1;
((FT_UInt32*)out)[0] = h1;
((FT_UInt32*)out)[1] = h2;
((FT_UInt32*)out)[2] = h3;
((FT_UInt32*)out)[3] = h4;
}
#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */
typedef int (*char_type_func)( int c );
2018-09-15 06:14:18 +02:00
/* Handling of PID/EID 3/0 and 3/1 is the same. */
#define IS_WIN( n ) ( (n)->platformID == 3 && \
( (n)->encodingID == 1 || (n)->encodingID == 0 ) )
#define IS_APPLE( n ) ( (n)->platformID == 1 && \
(n)->encodingID == 0 )
static char*
get_win_string( FT_Memory memory,
FT_Stream stream,
TT_Name entry,
char_type_func char_type,
FT_Bool report_invalid_characters )
{
FT_Error error;
char* result = NULL;
FT_String* r;
FT_Char* p;
FT_UInt len;
if ( FT_QALLOC( result, entry->stringLength / 2 + 1 ) )
return NULL;
if ( FT_STREAM_SEEK( entry->stringOffset ) ||
FT_FRAME_ENTER( entry->stringLength ) )
goto get_win_string_error;
r = (FT_String*)result;
p = (FT_Char*)stream->cursor;
for ( len = entry->stringLength / 2; len > 0; len--, p += 2 )
{
if ( p[0] == 0 && char_type( p[1] ) )
*r++ = p[1];
else
{
if ( report_invalid_characters )
FT_TRACE0(( "get_win_string:"
" Character 0x%X invalid in PS name string\n",
((unsigned)p[0])*256 + (unsigned)p[1] ));
continue;
}
}
*r = '\0';
FT_FRAME_EXIT();
if ( r != result )
return result;
get_win_string_error:
FT_FREE( result );
entry->stringLength = 0;
entry->stringOffset = 0;
FT_FREE( entry->string );
return NULL;
}
static char*
get_apple_string( FT_Memory memory,
FT_Stream stream,
TT_Name entry,
char_type_func char_type,
FT_Bool report_invalid_characters )
{
FT_Error error;
char* result = NULL;
FT_String* r;
FT_Char* p;
FT_UInt len;
if ( FT_QALLOC( result, entry->stringLength + 1 ) )
return NULL;
if ( FT_STREAM_SEEK( entry->stringOffset ) ||
FT_FRAME_ENTER( entry->stringLength ) )
goto get_apple_string_error;
r = (FT_String*)result;
p = (FT_Char*)stream->cursor;
for ( len = entry->stringLength; len > 0; len--, p++ )
{
if ( char_type( *p ) )
*r++ = *p;
else
{
if ( report_invalid_characters )
FT_TRACE0(( "get_apple_string:"
" Character `%c' (0x%X) invalid in PS name string\n",
*p, *p ));
continue;
}
}
*r = '\0';
FT_FRAME_EXIT();
if ( r != result )
return result;
get_apple_string_error:
FT_FREE( result );
entry->stringOffset = 0;
entry->stringLength = 0;
FT_FREE( entry->string );
return NULL;
}
FT_CALLBACK_DEF( FT_Bool )
sfnt_get_name_id( TT_Face face,
FT_UShort id,
FT_Int *win,
FT_Int *apple )
{
FT_Int n;
*win = -1;
*apple = -1;
for ( n = 0; n < face->num_names; n++ )
{
TT_Name name = face->name_table.names + n;
2002-03-26 03:38:39 +01:00
if ( name->nameID == id && name->stringLength > 0 )
{
if ( IS_WIN( name ) && ( name->languageID == 0x409 || *win == -1 ) )
*win = n;
if ( IS_APPLE( name ) && ( name->languageID == 0 || *apple == -1 ) )
*apple = n;
}
}
return ( *win >= 0 ) || ( *apple >= 0 );
}
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
/*
The maximum length of an axis value descriptor.
We need 65536 different values for the decimal fraction; this fits
nicely into five decimal places. Consequently, it consists of
. the minus sign if the number is negative,
. up to five characters for the digits before the decimal point,
. the decimal point if there is a fractional part, and
. up to five characters for the digits after the decimal point.
We also need one byte for the leading `_' character and up to four
bytes for the axis tag.
*/
#define MAX_VALUE_DESCRIPTOR_LEN ( 1 + 5 + 1 + 5 + 1 + 4 )
/* the maximum length of PostScript font names */
#define MAX_PS_NAME_LEN 127
/*
2022-06-21 17:08:04 +02:00
* Find the shortest decimal representation of a 16.16 fixed-point
* number. The function fills `buf' with the result, returning a pointer
* to the position after the representation's last byte.
*/
static char*
fixed2float( FT_Int fixed,
char* buf )
{
char* p;
char* q;
char tmp[5];
FT_Int int_part;
FT_Int frac_part;
FT_Int i;
p = buf;
if ( fixed == 0 )
{
*p++ = '0';
return p;
}
if ( fixed < 0 )
{
*p++ = '-';
fixed = NEG_INT( fixed );
}
int_part = ( fixed >> 16 ) & 0xFFFF;
frac_part = fixed & 0xFFFF;
/* get digits of integer part (in reverse order) */
q = tmp;
while ( int_part > 0 )
{
*q++ = '0' + int_part % 10;
int_part /= 10;
}
/* copy digits in correct order to buffer */
while ( q > tmp )
*p++ = *--q;
if ( !frac_part )
return p;
/* save position of point */
q = p;
*p++ = '.';
/* apply rounding */
frac_part = frac_part * 10 + 5;
/* get digits of fractional part */
for ( i = 0; i < 5; i++ )
{
*p++ = '0' + (char)( frac_part / 0x10000L );
frac_part %= 0x10000L;
if ( !frac_part )
break;
frac_part *= 10;
}
/*
If the remainder stored in `frac_part' (after the last FOR loop) is
smaller than 34480*10, the resulting decimal value minus 0.00001 is
an equivalent representation of `fixed'.
The above FOR loop always finds the larger of the two values; I
2022-06-21 17:08:04 +02:00
verified this by iterating over all possible fixed-point numbers.
If the remainder is 17232*10, both values are equally good, and we
take the next even number (following IEEE 754's `round to nearest,
ties to even' rounding rule).
If the remainder is smaller than 17232*10, the lower of the two
numbers is nearer to the exact result (values 17232 and 34480 were
2022-06-21 17:08:04 +02:00
also found by testing all possible fixed-point values).
We use this to find a shorter decimal representation. If not ending
with digit zero, we take the representation with less error.
*/
p--;
if ( p - q == 5 ) /* five digits? */
{
/* take the representation that has zero as the last digit */
if ( frac_part < 34480 * 10 &&
*p == '1' )
*p = '0';
/* otherwise use the one with less error */
else if ( frac_part == 17232 * 10 &&
*p & 1 )
*p -= 1;
else if ( frac_part < 17232 * 10 &&
*p != '0' )
*p -= 1;
}
/* remove trailing zeros */
while ( *p == '0' )
*p-- = '\0';
return p + 1;
}
static const char hexdigits[16] =
{
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
static const char*
sfnt_get_var_ps_name( TT_Face face )
{
FT_Error error;
FT_Memory memory = face->root.memory;
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
FT_UInt num_coords;
FT_Fixed* coords;
FT_MM_Var* mm_var;
FT_Int found, win, apple;
FT_UInt i, j;
char* result = NULL;
char* p;
if ( !face->var_postscript_prefix )
{
FT_UInt len;
/* check whether we have a Variations PostScript Name Prefix */
found = sfnt_get_name_id( face,
TT_NAME_ID_VARIATIONS_PREFIX,
&win,
&apple );
if ( !found )
{
/* otherwise use the typographic family name */
found = sfnt_get_name_id( face,
TT_NAME_ID_TYPOGRAPHIC_FAMILY,
&win,
&apple );
}
if ( !found )
{
/* according to the 'name' documentation in the OpenType */
/* specification the font family name is to be used if the */
/* typographic family name is missing, so let's do that */
found = sfnt_get_name_id( face,
TT_NAME_ID_FONT_FAMILY,
&win,
&apple );
}
if ( !found )
{
FT_TRACE0(( "sfnt_get_var_ps_name:"
" Can't construct PS name prefix for font instances\n" ));
return NULL;
}
/* prefer Windows entries over Apple */
if ( win != -1 )
result = get_win_string( face->root.memory,
face->name_table.stream,
face->name_table.names + win,
sfnt_is_alphanumeric,
0 );
if ( !result && apple != -1 )
result = get_apple_string( face->root.memory,
face->name_table.stream,
face->name_table.names + apple,
sfnt_is_alphanumeric,
0 );
if ( !result )
{
FT_TRACE0(( "sfnt_get_var_ps_name:"
" No valid PS name prefix for font instances found\n" ));
/* XXX It probably makes sense to never let this fail */
/* since an arbitrary prefix should work, too. */
/* On the other hand, it is very unlikely that */
/* we ever reach this code at all. */
return NULL;
}
len = ft_strlen( result );
/* sanitize if necessary; we reserve space for 36 bytes (a 128bit */
/* checksum as a hex number, preceded by `-' and followed by three */
/* ASCII dots, to be used if the constructed PS name would be too */
/* long); this is also sufficient for a single instance */
if ( len > MAX_PS_NAME_LEN - ( 1 + 32 + 3 ) )
{
len = MAX_PS_NAME_LEN - ( 1 + 32 + 3 );
result[len] = '\0';
FT_TRACE0(( "sfnt_get_var_ps_name:"
" Shortening variation PS name prefix\n" ));
FT_TRACE0(( " "
" to %d characters\n", len ));
}
face->var_postscript_prefix = result;
face->var_postscript_prefix_len = len;
}
mm->get_var_blend( FT_FACE( face ),
&num_coords,
&coords,
NULL,
&mm_var );
if ( FT_IS_NAMED_INSTANCE( FT_FACE( face ) ) &&
!FT_IS_VARIATION( FT_FACE( face ) ) )
{
SFNT_Service sfnt = (SFNT_Service)face->sfnt;
FT_Long instance = ( ( face->root.face_index & 0x7FFF0000L ) >> 16 ) - 1;
FT_UInt psid = mm_var->namedstyle[instance].psid;
char* ps_name = NULL;
/* try first to load the name string with index `postScriptNameID' */
if ( psid == 6 ||
( psid > 255 && psid < 32768 ) )
(void)sfnt->get_name( face, (FT_UShort)psid, &ps_name );
if ( ps_name )
{
result = ps_name;
p = result + ft_strlen( result ) + 1;
goto check_length;
}
else
{
/* otherwise construct a name using `subfamilyNameID' */
FT_UInt strid = mm_var->namedstyle[instance].strid;
char* subfamily_name;
char* s;
(void)sfnt->get_name( face, (FT_UShort)strid, &subfamily_name );
if ( !subfamily_name )
{
FT_TRACE1(( "sfnt_get_var_ps_name:"
" can't construct named instance PS name;\n" ));
FT_TRACE1(( " "
" trying to construct normal instance PS name\n" ));
goto construct_instance_name;
}
/* after the prefix we have character `-' followed by the */
/* subfamily name (using only characters a-z, A-Z, and 0-9) */
if ( FT_QALLOC( result, face->var_postscript_prefix_len +
1 + ft_strlen( subfamily_name ) + 1 ) )
return NULL;
ft_strcpy( result, face->var_postscript_prefix );
p = result + face->var_postscript_prefix_len;
*p++ = '-';
s = subfamily_name;
while ( *s )
{
if ( ft_isalnum( *s ) )
*p++ = *s;
s++;
}
*p++ = '\0';
FT_FREE( subfamily_name );
}
}
else
{
FT_Var_Axis* axis;
construct_instance_name:
axis = mm_var->axis;
if ( FT_QALLOC( result,
face->var_postscript_prefix_len +
num_coords * MAX_VALUE_DESCRIPTOR_LEN + 1 ) )
return NULL;
p = result;
ft_strcpy( p, face->var_postscript_prefix );
p += face->var_postscript_prefix_len;
for ( i = 0; i < num_coords; i++, coords++, axis++ )
{
char t;
/* omit axis value descriptor if it is identical */
/* to the default axis value */
if ( *coords == axis->def )
continue;
*p++ = '_';
p = fixed2float( *coords, p );
t = (char)( axis->tag >> 24 );
if ( t != ' ' && ft_isalnum( t ) )
*p++ = t;
t = (char)( axis->tag >> 16 );
if ( t != ' ' && ft_isalnum( t ) )
*p++ = t;
t = (char)( axis->tag >> 8 );
if ( t != ' ' && ft_isalnum( t ) )
*p++ = t;
t = (char)axis->tag;
if ( t != ' ' && ft_isalnum( t ) )
*p++ = t;
}
*p++ = '\0';
}
check_length:
if ( p - result > MAX_PS_NAME_LEN )
{
/* the PS name is too long; replace the part after the prefix with */
/* a checksum; we use MurmurHash 3 with a hash length of 128 bit */
FT_UInt32 seed = 123456789;
FT_UInt32 hash[4];
FT_UInt32* h;
murmur_hash_3_128( result, p - result, seed, hash );
p = result + face->var_postscript_prefix_len;
*p++ = '-';
/* we convert the hash value to hex digits from back to front */
p += 32 + 3;
h = hash + 3;
*p-- = '\0';
*p-- = '.';
*p-- = '.';
*p-- = '.';
for ( i = 0; i < 4; i++, h-- )
{
FT_UInt32 v = *h;
for ( j = 0; j < 8; j++ )
{
*p-- = hexdigits[v & 0xF];
v >>= 4;
}
}
}
return result;
}
#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */
FT_CALLBACK_DEF( const char* )
sfnt_get_ps_name( FT_Face face ) /* TT_Face */
{
TT_Face ttface = (TT_Face)face;
FT_Int found, win, apple;
const char* result = NULL;
if ( ttface->postscript_name )
return ttface->postscript_name;
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
if ( ttface->blend &&
( FT_IS_NAMED_INSTANCE( face ) ||
FT_IS_VARIATION( face ) ) )
{
ttface->postscript_name = sfnt_get_var_ps_name( ttface );
return ttface->postscript_name;
}
#endif
/* scan the name table to see whether we have a Postscript name here, */
/* either in Macintosh or Windows platform encodings */
found = sfnt_get_name_id( ttface, TT_NAME_ID_PS_NAME, &win, &apple );
if ( !found )
return NULL;
/* prefer Windows entries over Apple */
if ( win != -1 )
result = get_win_string( FT_FACE_MEMORY( face ),
ttface->name_table.stream,
ttface->name_table.names + win,
sfnt_is_postscript,
1 );
if ( !result && apple != -1 )
result = get_apple_string( FT_FACE_MEMORY( face ),
ttface->name_table.stream,
ttface->name_table.names + apple,
sfnt_is_postscript,
1 );
ttface->postscript_name = result;
return result;
}
2012-08-24 13:41:24 +02:00
FT_DEFINE_SERVICE_PSFONTNAMEREC(
sfnt_service_ps_name,
(FT_PsName_GetFunc)sfnt_get_ps_name /* get_ps_font_name */
)
2005-12-20 13:01:58 +01:00
/*
* TT CMAP INFO
2005-12-20 13:01:58 +01:00
*/
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FT_DEFINE_SERVICE_TTCMAPSREC(
tt_service_get_cmap_info,
(TT_CMap_Info_GetFunc)tt_get_cmap_info /* get_cmap_info */
)
2005-12-20 13:01:58 +01:00
#ifdef TT_CONFIG_OPTION_BDF
static FT_Error
sfnt_get_charset_id( FT_Face face,
const char* *acharset_encoding,
const char* *acharset_registry )
{
2005-12-20 13:01:58 +01:00
BDF_PropertyRec encoding, registry;
FT_Error error;
/* XXX: I don't know whether this is correct, since
* tt_face_find_bdf_prop only returns something correct if we have
* previously selected a size that is listed in the BDF table.
2005-12-20 13:01:58 +01:00
* Should we change the BDF table format to include single offsets
* for `CHARSET_REGISTRY' and `CHARSET_ENCODING'?
*/
error = tt_face_find_bdf_prop( face, "CHARSET_REGISTRY", &registry );
if ( !error )
{
error = tt_face_find_bdf_prop( face, "CHARSET_ENCODING", &encoding );
if ( !error )
{
if ( registry.type == BDF_PROPERTY_TYPE_ATOM &&
encoding.type == BDF_PROPERTY_TYPE_ATOM )
{
*acharset_encoding = encoding.u.atom;
*acharset_registry = registry.u.atom;
}
else
error = FT_THROW( Invalid_Argument );
}
}
return error;
}
2012-08-24 13:41:24 +02:00
FT_DEFINE_SERVICE_BDFRec(
sfnt_service_bdf,
2015-10-30 08:07:56 +01:00
(FT_BDF_GetCharsetIdFunc)sfnt_get_charset_id, /* get_charset_id */
(FT_BDF_GetPropertyFunc) tt_face_find_bdf_prop /* get_property */
)
2012-08-24 13:41:24 +02:00
#endif /* TT_CONFIG_OPTION_BDF */
2005-12-20 13:01:58 +01:00
/*
* SERVICE LIST
2005-12-20 13:01:58 +01:00
*/
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#if defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES && defined TT_CONFIG_OPTION_BDF
2012-08-24 13:41:24 +02:00
FT_DEFINE_SERVICEDESCREC5(
sfnt_services,
FT_SERVICE_ID_SFNT_TABLE, &sfnt_service_sfnt_table,
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name,
FT_SERVICE_ID_GLYPH_DICT, &sfnt_service_glyph_dict,
FT_SERVICE_ID_BDF, &sfnt_service_bdf,
FT_SERVICE_ID_TT_CMAP, &tt_service_get_cmap_info )
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#elif defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES
2012-08-24 13:41:24 +02:00
FT_DEFINE_SERVICEDESCREC4(
sfnt_services,
FT_SERVICE_ID_SFNT_TABLE, &sfnt_service_sfnt_table,
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name,
FT_SERVICE_ID_GLYPH_DICT, &sfnt_service_glyph_dict,
FT_SERVICE_ID_TT_CMAP, &tt_service_get_cmap_info )
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#elif defined TT_CONFIG_OPTION_BDF
2012-08-24 13:41:24 +02:00
FT_DEFINE_SERVICEDESCREC4(
sfnt_services,
FT_SERVICE_ID_SFNT_TABLE, &sfnt_service_sfnt_table,
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name,
FT_SERVICE_ID_BDF, &sfnt_service_bdf,
FT_SERVICE_ID_TT_CMAP, &tt_service_get_cmap_info )
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#else
2012-08-24 13:41:24 +02:00
FT_DEFINE_SERVICEDESCREC3(
sfnt_services,
FT_SERVICE_ID_SFNT_TABLE, &sfnt_service_sfnt_table,
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name,
FT_SERVICE_ID_TT_CMAP, &tt_service_get_cmap_info )
#endif
2001-06-28 01:25:46 +02:00
FT_CALLBACK_DEF( FT_Module_Interface )
sfnt_get_interface( FT_Module module,
const char* module_interface )
{
FT_UNUSED( module );
2012-08-24 13:41:24 +02:00
return ft_service_list_lookup( sfnt_services, module_interface );
}
1999-12-17 00:11:37 +01:00
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
2012-08-24 13:41:24 +02:00
#define PUT_EMBEDDED_BITMAPS( a ) a
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#else
2012-08-24 13:41:24 +02:00
#define PUT_EMBEDDED_BITMAPS( a ) NULL
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#endif
2012-08-24 13:41:24 +02:00
[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-13 03:25:09 +02:00
#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
#define PUT_COLOR_LAYERS( a ) a
#else
#define PUT_COLOR_LAYERS( a ) NULL
#endif
Add code to load OT-SVG glyph documents. * include/freetype/config/ftheader.h (FT_OTSVG_H): New macro. * include/freetype/freetype.h (FT_FACE_FLAG_SVG, FT_HAS_SVG): New macros. (FT_LOAD_SVG_ONLY): New internal macro. * include/freetype/ftimage.h (FT_Glyph_Format): New enumeration value `FT_GLYPH_FORMAT_SVG`. * include/freetype/internal/ftobjs.h (FT_GLYPH_OWN_GZIP_SVG): New macro. * include/freetype/internal/fttrace.h: Add `ttsvg` for `ttsvg.c`. * include/freetype/internal/sfnt.h(load_svg, free_svg, load_svg_doc): New functions. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `svg` for the SVG table. * include/freetype/otsvg.h (FT_SVG_DocumentRec): New structure to hold the SVG document and other necessary information of an OT-SVG glyph in a glyph slot. * include/freetype/tttags.h (TTAG_SVG): New macro. * src/base/ftobjs.c: Include `otsvg.h`. (ft_glyphslot_init): Allocate `FT_SVG_DocumentRec` in `slot->other` if the SVG table exists. (ft_glyphslot_clear): Free it upon clean-up if it is a GZIP compressed glyph. (ft_glyphslot_done): Free the document data if it is a GZIP compressed glyph. (FT_Load_Glyph): Don't auto-hint SVG documents. * src/cache/ftcbasic.c (ftc_basic_family_load_glyph): Add support for FT_GLYPH_FORMAT_SVG. * src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttsvg.c`. * src/sfnt/sfdriver.c: Include `ttsvg.h`. (sfnt_interface): Add `tt_face_load_svg`, `tt_face_free_svg` and `tt_face_load_svg_doc`. * src/sfnt/sfnt.c: Include `ttsvg.c`. * src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Add code to load and free data of the the SVG table. * src/sfnt/ttsvg.c: New file, implementing `tt_face_load_svg`, `tt_face_free_svg` and `tt_face_load_svg_doc`. * src/sfnt/ttsvg.h: Declarations of the SVG functions in `ttsvg.c`.
2021-12-26 04:20:44 +01:00
#ifdef FT_CONFIG_OPTION_SVG
#define PUT_SVG_SUPPORT( a ) a
#else
#define PUT_SVG_SUPPORT( a ) NULL
#endif
#define PUT_COLOR_LAYERS_V1( a ) PUT_COLOR_LAYERS( a )
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
2012-08-24 13:41:24 +02:00
#define PUT_PS_NAMES( a ) a
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#else
2012-08-24 13:41:24 +02:00
#define PUT_PS_NAMES( a ) NULL
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
#endif
2012-08-24 13:41:24 +02:00
FT_DEFINE_SFNT_INTERFACE(
sfnt_interface,
2016-08-26 08:42:27 +02:00
tt_face_goto_table, /* TT_Loader_GotoTableFunc goto_table */
2000-05-17 01:44:38 +02:00
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sfnt_init_face, /* TT_Init_Face_Func init_face */
sfnt_load_face, /* TT_Load_Face_Func load_face */
sfnt_done_face, /* TT_Done_Face_Func done_face */
sfnt_get_interface, /* FT_Module_Requester get_interface */
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tt_face_load_any, /* TT_Load_Any_Func load_any */
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tt_face_load_head, /* TT_Load_Table_Func load_head */
tt_face_load_hhea, /* TT_Load_Metrics_Func load_hhea */
tt_face_load_cmap, /* TT_Load_Table_Func load_cmap */
tt_face_load_maxp, /* TT_Load_Table_Func load_maxp */
tt_face_load_os2, /* TT_Load_Table_Func load_os2 */
tt_face_load_post, /* TT_Load_Table_Func load_post */
1999-12-17 00:11:37 +01:00
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tt_face_load_name, /* TT_Load_Table_Func load_name */
tt_face_free_name, /* TT_Free_Table_Func free_name */
1999-12-17 00:11:37 +01:00
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tt_face_load_kern, /* TT_Load_Table_Func load_kern */
tt_face_load_gasp, /* TT_Load_Table_Func load_gasp */
tt_face_load_pclt, /* TT_Load_Table_Func load_init */
1999-12-17 00:11:37 +01:00
/* see `ttload.h' */
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PUT_EMBEDDED_BITMAPS( tt_face_load_bhed ),
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/* TT_Load_Table_Func load_bhed */
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PUT_EMBEDDED_BITMAPS( tt_face_load_sbit_image ),
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/* TT_Load_SBit_Image_Func load_sbit_image */
/* see `ttpost.h' */
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PUT_PS_NAMES( tt_face_get_ps_name ),
2016-08-26 08:42:27 +02:00
/* TT_Get_PS_Name_Func get_psname */
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PUT_PS_NAMES( tt_face_free_ps_names ),
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/* TT_Free_Table_Func free_psnames */
/* since version 2.1.8 */
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tt_face_get_kerning, /* TT_Face_GetKerningFunc get_kerning */
/* since version 2.2 */
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tt_face_load_font_dir, /* TT_Load_Table_Func load_font_dir */
tt_face_load_hmtx, /* TT_Load_Metrics_Func load_hmtx */
/* see `ttsbit.h' and `sfnt.h' */
PUT_EMBEDDED_BITMAPS( tt_face_load_sbit ),
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/* TT_Load_Table_Func load_eblc */
PUT_EMBEDDED_BITMAPS( tt_face_free_sbit ),
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/* TT_Free_Table_Func free_eblc */
2012-08-24 13:41:24 +02:00
PUT_EMBEDDED_BITMAPS( tt_face_set_sbit_strike ),
/* TT_Set_SBit_Strike_Func set_sbit_strike */
2012-08-24 13:41:24 +02:00
PUT_EMBEDDED_BITMAPS( tt_face_load_strike_metrics ),
/* TT_Load_Strike_Metrics_Func load_strike_metrics */
[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-13 03:25:09 +02:00
PUT_COLOR_LAYERS( tt_face_load_cpal ),
/* TT_Load_Table_Func load_cpal */
[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-13 03:25:09 +02:00
PUT_COLOR_LAYERS( tt_face_load_colr ),
/* TT_Load_Table_Func load_colr */
PUT_COLOR_LAYERS( tt_face_free_cpal ),
/* TT_Free_Table_Func free_cpal */
[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-13 03:25:09 +02:00
PUT_COLOR_LAYERS( tt_face_free_colr ),
/* TT_Free_Table_Func free_colr */
PUT_COLOR_LAYERS( tt_face_palette_set ),
/* TT_Set_Palette_Func set_palette */
PUT_COLOR_LAYERS( tt_face_get_colr_layer ),
/* TT_Get_Colr_Layer_Func get_colr_layer */
PUT_COLOR_LAYERS_V1( tt_face_get_colr_glyph_paint ),
/* TT_Get_Color_Glyph_Paint_Func get_colr_glyph_paint */
PUT_COLOR_LAYERS_V1( tt_face_get_color_glyph_clipbox ),
/* TT_Get_Color_Glyph_ClipBox_Func get_clipbox */
PUT_COLOR_LAYERS_V1( tt_face_get_paint_layers ),
/* TT_Get_Paint_Layers_Func get_paint_layers */
PUT_COLOR_LAYERS_V1( tt_face_get_colorline_stops ),
/* TT_Get_Paint get_paint */
PUT_COLOR_LAYERS_V1( tt_face_get_paint ),
/* TT_Get_Colorline_Stops_Func get_colorline_stops */
[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-13 03:25:09 +02:00
PUT_COLOR_LAYERS( tt_face_colr_blend_layer ),
/* TT_Blend_Colr_Func colr_blend */
1999-12-17 00:11:37 +01:00
2016-08-26 08:42:27 +02:00
tt_face_get_metrics, /* TT_Get_Metrics_Func get_metrics */
tt_face_get_name, /* TT_Get_Name_Func get_name */
Add code to load OT-SVG glyph documents. * include/freetype/config/ftheader.h (FT_OTSVG_H): New macro. * include/freetype/freetype.h (FT_FACE_FLAG_SVG, FT_HAS_SVG): New macros. (FT_LOAD_SVG_ONLY): New internal macro. * include/freetype/ftimage.h (FT_Glyph_Format): New enumeration value `FT_GLYPH_FORMAT_SVG`. * include/freetype/internal/ftobjs.h (FT_GLYPH_OWN_GZIP_SVG): New macro. * include/freetype/internal/fttrace.h: Add `ttsvg` for `ttsvg.c`. * include/freetype/internal/sfnt.h(load_svg, free_svg, load_svg_doc): New functions. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `svg` for the SVG table. * include/freetype/otsvg.h (FT_SVG_DocumentRec): New structure to hold the SVG document and other necessary information of an OT-SVG glyph in a glyph slot. * include/freetype/tttags.h (TTAG_SVG): New macro. * src/base/ftobjs.c: Include `otsvg.h`. (ft_glyphslot_init): Allocate `FT_SVG_DocumentRec` in `slot->other` if the SVG table exists. (ft_glyphslot_clear): Free it upon clean-up if it is a GZIP compressed glyph. (ft_glyphslot_done): Free the document data if it is a GZIP compressed glyph. (FT_Load_Glyph): Don't auto-hint SVG documents. * src/cache/ftcbasic.c (ftc_basic_family_load_glyph): Add support for FT_GLYPH_FORMAT_SVG. * src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttsvg.c`. * src/sfnt/sfdriver.c: Include `ttsvg.h`. (sfnt_interface): Add `tt_face_load_svg`, `tt_face_free_svg` and `tt_face_load_svg_doc`. * src/sfnt/sfnt.c: Include `ttsvg.c`. * src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Add code to load and free data of the the SVG table. * src/sfnt/ttsvg.c: New file, implementing `tt_face_load_svg`, `tt_face_free_svg` and `tt_face_load_svg_doc`. * src/sfnt/ttsvg.h: Declarations of the SVG functions in `ttsvg.c`.
2021-12-26 04:20:44 +01:00
sfnt_get_name_id, /* TT_Get_Name_ID_Func get_name_id */
PUT_SVG_SUPPORT( tt_face_load_svg ),
/* TT_Load_Table_Func load_svg */
PUT_SVG_SUPPORT( tt_face_free_svg ),
/* TT_Free_Table_Func free_svg */
PUT_SVG_SUPPORT( tt_face_load_svg_doc )
/* TT_Load_Svg_Doc_Func load_svg_doc */
Position Independent Code (PIC) support in sfnt driver. * include/freetype/internal/services/svbdf.h add macros to init instances of FT_Service_BDFRec. * include/freetype/internal/services/svgldict.h add macros to init instances of FT_Service_GlyphDictRec. * include/freetype/internal/services/svpostnm.h add macros to init instances of FT_Service_PsFontNameRec. * include/freetype/internal/services/svsfnt.h add macros to init instances of FT_Service_SFNT_TableRec. * include/freetype/internal/services/svttcmap.h add macros to init instances of FT_Service_TTCMapsRec. * include/freetype/internal/sfnt.h add macros to init instances of SFNT_Interface. * src/sfnt/sfdriver.h declare sfnt_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined the following structs: sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, sfnt_module_class, and sfnt_services array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. * src/sfnt/ttcmap.h add macros to init instances of TT_CMap_ClassRec. * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined the following structs: tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from sfntpic.h in order to access them from the pic_container. The content of tt_cmap_classes is now described in the new file 'ttcmapc.h'. New Files: * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt driver and macros to access them. * src/sfnt/sfntpic.c implement functions to allocate, destroy and initialize PIC globals for sfnt driver. * src/sfnt/ttcmapc.h describing the content of tt_cmap_classes allocated in ttcmap.c * src/sfnt/sfnt.c add new file to build: sfntpic.c. * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c.
2009-04-05 17:08:32 +02:00
)
2000-05-17 01:44:38 +02:00
1999-12-17 00:11:37 +01:00
2012-08-24 13:41:24 +02:00
FT_DEFINE_MODULE(
sfnt_module_class,
2012-01-16 18:00:24 +01:00
- MAJOR INTERNAL REDESIGN: A lot of internal modifications have been performed lately on the source in order to provide the following enhancements: - more generic module support: The FT_Module type is now defined to represent a handle to a given module. The file <freetype/ftmodule.h> contains the FT_Module_Class definition, as well as the module-loading public API The FT_Driver type is still defined, and still represents a pointer to a font driver. Note that FT_Add_Driver is replaced by FT_Add_Module, FT_Get_Driver by FT_Get_Module, etc.. - support for generic glyph image types: The FT_Renderer type is a pointer to a module used to perform various operations on glyph image. Each renderer is capable of handling images in a single format (e.g. ft_glyph_format_outline). Its functions are used to: - transform an glyph image - render a glyph image into a bitmap - return the control box (dimensions) of a given glyph image The scan converters "ftraster.c" and "ftgrays.c" have been moved to the new directory "src/renderer", and are used to provide two default renderer modules. One corresponds to the "standard" scan-converter, the other to the "smooth" one. The current renderer can be set through the new function FT_Set_Renderer. The old raster-related function FT_Set_Raster, FT_Get_Raster and FT_Set_Raster_Mode have now disappeared, in favor of the new: FT_Get_Renderer FT_Set_Renderer see the file <freetype/ftrender.h> for more details.. These changes were necessary to properly support different scalable formats in the future, like bi-color glyphs, etc.. - glyph loader object: A new internal object, called a 'glyph loader' has been introduced in the base layer. It is used by all scalable format font drivers to load glyphs and composites. This object has been created to reduce the code size of each driver, as each one of them basically re-implemented its functionality. See <freetype/internal/ftobjs.h> and the FT_GlyphLoader type for more information.. - FT_GlyphSlot had new fields: In order to support extended features (see below), the FT_GlyphSlot structure has a few new fields: linearHoriAdvance: this field gives the linearly scaled (i.e. scaled but unhinted) advance width for the glyph, expressed as a 16.16 fixed pixel value. This is useful to perform WYSIWYG text. linearVertAdvance: this field gives the linearly scaled advance height for the glyph (relevant in vertical glyph layouts only). This is useful to perform WYSIWYG text. Note that the two above field replace the removed "metrics2" field in the glyph slot. advance: this field is a vector that gives the transformed advance for the glyph. By default, it corresponds to the advance width, unless FT_LOAD_VERTICAL_LAYOUT was specified when calling FT_Load_Glyph or FT_Load_Char bitmap_left: this field gives the distance in integer pixels from the current pen position to the left-most pixel of a glyph image WHEN IT IS A BITMAP. It is only valid when the "format" field is set to "ft_glyph_format_bitmap", for example, after calling the new function FT_Render_Glyph. bitmap_top: this field gives the distance in integer pixels from the current pen position (located on the baseline) to the top-most pixel of the glyph image WHEN IT IS A BITMAP. Positive values correspond to upwards Y. loader: this is a new private field for the glyph slot. Client applications should not touch it.. - support for transforms and direct rendering in FT_Load_Glyph: Most of the functionality found in <freetype/ftglyph.h> has been moved to the core library. Hence, the following: - a transform can be specified for a face through FT_Set_Transform. this transform is applied by FT_Load_Glyph to scalable glyph images (i.e. NOT TO BITMAPS) before the function returns, unless the bit flag FT_LOAD_IGNORE_TRANSFORM was set in the load flags.. - once a glyph image has been loaded, it can be directly converted to a bitmap by using the new FT_Render_Glyph function. Note that this function takes the glyph image from the glyph slot, and converts it to a bitmap whose properties are returned in "face.glyph.bitmap", "face.glyph.bitmap_left" and "face.glyph.bitmap_top". The original native image might be lost after the conversion. - when using the new bit flag FT_LOAD_RENDER, the FT_Load_Glyph and FT_Load_Char functions will call FT_Render_Glyph automatically when needed.
2000-06-22 02:17:42 +02:00
0, /* not a font driver or renderer */
2011-11-30 10:46:53 +01:00
sizeof ( FT_ModuleRec ),
- MAJOR INTERNAL REDESIGN: A lot of internal modifications have been performed lately on the source in order to provide the following enhancements: - more generic module support: The FT_Module type is now defined to represent a handle to a given module. The file <freetype/ftmodule.h> contains the FT_Module_Class definition, as well as the module-loading public API The FT_Driver type is still defined, and still represents a pointer to a font driver. Note that FT_Add_Driver is replaced by FT_Add_Module, FT_Get_Driver by FT_Get_Module, etc.. - support for generic glyph image types: The FT_Renderer type is a pointer to a module used to perform various operations on glyph image. Each renderer is capable of handling images in a single format (e.g. ft_glyph_format_outline). Its functions are used to: - transform an glyph image - render a glyph image into a bitmap - return the control box (dimensions) of a given glyph image The scan converters "ftraster.c" and "ftgrays.c" have been moved to the new directory "src/renderer", and are used to provide two default renderer modules. One corresponds to the "standard" scan-converter, the other to the "smooth" one. The current renderer can be set through the new function FT_Set_Renderer. The old raster-related function FT_Set_Raster, FT_Get_Raster and FT_Set_Raster_Mode have now disappeared, in favor of the new: FT_Get_Renderer FT_Set_Renderer see the file <freetype/ftrender.h> for more details.. These changes were necessary to properly support different scalable formats in the future, like bi-color glyphs, etc.. - glyph loader object: A new internal object, called a 'glyph loader' has been introduced in the base layer. It is used by all scalable format font drivers to load glyphs and composites. This object has been created to reduce the code size of each driver, as each one of them basically re-implemented its functionality. See <freetype/internal/ftobjs.h> and the FT_GlyphLoader type for more information.. - FT_GlyphSlot had new fields: In order to support extended features (see below), the FT_GlyphSlot structure has a few new fields: linearHoriAdvance: this field gives the linearly scaled (i.e. scaled but unhinted) advance width for the glyph, expressed as a 16.16 fixed pixel value. This is useful to perform WYSIWYG text. linearVertAdvance: this field gives the linearly scaled advance height for the glyph (relevant in vertical glyph layouts only). This is useful to perform WYSIWYG text. Note that the two above field replace the removed "metrics2" field in the glyph slot. advance: this field is a vector that gives the transformed advance for the glyph. By default, it corresponds to the advance width, unless FT_LOAD_VERTICAL_LAYOUT was specified when calling FT_Load_Glyph or FT_Load_Char bitmap_left: this field gives the distance in integer pixels from the current pen position to the left-most pixel of a glyph image WHEN IT IS A BITMAP. It is only valid when the "format" field is set to "ft_glyph_format_bitmap", for example, after calling the new function FT_Render_Glyph. bitmap_top: this field gives the distance in integer pixels from the current pen position (located on the baseline) to the top-most pixel of the glyph image WHEN IT IS A BITMAP. Positive values correspond to upwards Y. loader: this is a new private field for the glyph slot. Client applications should not touch it.. - support for transforms and direct rendering in FT_Load_Glyph: Most of the functionality found in <freetype/ftglyph.h> has been moved to the core library. Hence, the following: - a transform can be specified for a face through FT_Set_Transform. this transform is applied by FT_Load_Glyph to scalable glyph images (i.e. NOT TO BITMAPS) before the function returns, unless the bit flag FT_LOAD_IGNORE_TRANSFORM was set in the load flags.. - once a glyph image has been loaded, it can be directly converted to a bitmap by using the new FT_Render_Glyph function. Note that this function takes the glyph image from the glyph slot, and converts it to a bitmap whose properties are returned in "face.glyph.bitmap", "face.glyph.bitmap_left" and "face.glyph.bitmap_top". The original native image might be lost after the conversion. - when using the new bit flag FT_LOAD_RENDER, the FT_Load_Glyph and FT_Load_Char functions will call FT_Render_Glyph automatically when needed.
2000-06-22 02:17:42 +02:00
"sfnt", /* driver name */
2000-06-25 08:47:11 +02:00
0x10000L, /* driver version 1.0 */
0x20000L, /* driver requires FreeType 2.0 or higher */
(const void*)&sfnt_interface, /* module specific interface */
(FT_Module_Constructor)NULL, /* module_init */
(FT_Module_Destructor) NULL, /* module_done */
(FT_Module_Requester) sfnt_get_interface /* get_interface */
)
1999-12-17 00:11:37 +01:00
/* END */