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* src/type1/t1gload.h, src/type1/t1gload.c: fixed incorrect

Browse Source 
parameter sign-ness in callback function

        * include/freetype/config/ftmodule.h,
          include/freetype/internal/fttrace.h,
          src/Jamfile, src/pfr/*:

          adding a PFR font driver to the FreeType sources. Not that it
          doesn't support embedded bitmaps or kerning tables for now..


        * include/freetype/internal/ftmemory.h: adding the FT_MEM_ZERO
          and FT_ZERO macros

        * include/freetype/internal/ftstream.h: adding the FT_NEXT_OFF3,
          FT_NEXT_UOFF3, FT_NEXT_OFF3_LE and FT_NEXT_UOFF3_LE to parse
          in-memory 24-bit integers.
This commit is contained in:
David Turner 2002-04-19 15:13:47 +00:00
parent b97e32c7ad
commit 596ba53283
25 changed files with 2604 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
ChangeLog
View File

@ -1,3 +1,24 @@
2002-04-19 David Turner <david@freetype.org>
* src/type1/t1gload.h, src/type1/t1gload.c: fixed incorrect
parameter sign-ness in callback function
* include/freetype/config/ftmodule.h,
include/freetype/internal/fttrace.h,
src/Jamfile, src/pfr/*:
adding a PFR font driver to the FreeType sources. Not that it
doesn't support embedded bitmaps or kerning tables for now..
* include/freetype/internal/ftmemory.h: adding the FT_MEM_ZERO
and FT_ZERO macros
* include/freetype/internal/ftstream.h: adding the FT_NEXT_OFF3,
FT_NEXT_UOFF3, FT_NEXT_OFF3_LE and FT_NEXT_UOFF3_LE to parse
in-memory 24-bit integers.
2002-04-18 David Turner <david@freetype.org>
* src/base/ftobjs.c, builds/win32/ftdebug.c,

1
include/freetype/config/ftmodule.h
View File

@ -10,5 +10,6 @@ FT_USE_MODULE(sfnt_module_class)
FT_USE_MODULE(ft_smooth_renderer_class)
FT_USE_MODULE(tt_driver_class)
FT_USE_MODULE(t1_driver_class)
FT_USE_MODULE(pfr_driver_class)
FT_USE_MODULE(winfnt_driver_class)

2
include/freetype/config/ftoption.h
View File

@ -375,7 +375,7 @@ FT_BEGIN_HEADER
/* By undefining this, you will only compile the code necessary to load */
/* TrueType glyphs without hinting. */
/* */
#undef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
#undef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
/*************************************************************************/

3
include/freetype/internal/ftmemory.h
View File

@ -178,6 +178,9 @@ FT_BEGIN_HEADER
#define FT_MEM_MOVE( dest, source, count ) ft_memmove( dest, source, count )
#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count )
#define FT_ZERO(p) FT_MEM_ZERO( p, sizeof(*(p)) )
/*************************************************************************/
/* */

4
include/freetype/internal/ftstream.h
View File

@ -120,6 +120,8 @@ FT_BEGIN_HEADER
#define FT_FRAME_ULONG( f ) FT_FRAME_FIELD( ft_frame_ulong_be, f )
#define FT_FRAME_SHORT( f ) FT_FRAME_FIELD( ft_frame_short_be, f )
#define FT_FRAME_USHORT( f ) FT_FRAME_FIELD( ft_frame_ushort_be, f )
#define FT_FRAME_OFF3( f ) FT_FRAME_FIELD( ft_frame_off3_be, f )
#define FT_FRAME_UOFF3( f ) FT_FRAME_FIELD( ft_frame_uoff3_be, f )
#define FT_FRAME_BYTE( f ) FT_FRAME_FIELD( ft_frame_byte, f )
#define FT_FRAME_CHAR( f ) FT_FRAME_FIELD( ft_frame_schar, f )
@ -127,6 +129,8 @@ FT_BEGIN_HEADER
#define FT_FRAME_ULONG_LE( f ) FT_FRAME_FIELD( ft_frame_ulong_le, f )
#define FT_FRAME_SHORT_LE( f ) FT_FRAME_FIELD( ft_frame_short_le, f )
#define FT_FRAME_USHORT_LE( f ) FT_FRAME_FIELD( ft_frame_ushort_le, f )
#define FT_FRAME_OFF3_LE( f ) FT_FRAME_FIELD( ft_frame_off3_le, f )
#define FT_FRAME_UOFF3_LE( f ) FT_FRAME_FIELD( ft_frame_uoff3_le, f )
#define FT_FRAME_SKIP_LONG { ft_frame_long_be, 0, 0 }
#define FT_FRAME_SKIP_SHORT { ft_frame_short_be, 0, 0 }

2
include/freetype/internal/fttrace.h
View File

@ -92,5 +92,7 @@ FT_TRACE_DEF( winfnt )
FT_TRACE_DEF( pcfdriver )
FT_TRACE_DEF( pcfread )
/* PFR fonts component */
FT_TRACE_DEF( pfr )
/* END */

1
src/Jamfile
View File

@ -21,6 +21,7 @@ SubInclude FT2_TOP src cache ;
SubInclude FT2_TOP src cff ;
SubInclude FT2_TOP src cid ;
SubInclude FT2_TOP src pcf ;
SubInclude FT2_TOP src pfr ;
SubInclude FT2_TOP src psaux ;
SubInclude FT2_TOP src psnames ;
SubInclude FT2_TOP src raster ;

23
src/pfr/Jamfile Normal file
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@ -0,0 +1,23 @@
# FreeType 2 src/pfr Jamfile (c) 2002 David Turner
#
SubDir FT2_TOP src pfr ;
SubDirHdrs [ FT2_SubDir src pfr ] ;
{
local _sources ;
if $(FT2_MULTI)
{
_sources = pfrdrivr pfrgload pfrload pfrobjs pfrcmap ;
}
else
{
_sources = pfr ;
}
Library $(FT2_LIB) : $(_sources).c ;
}
# end of src/pfr Jamfile

23
src/pfr/descrip.mms Normal file
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@ -0,0 +1,23 @@
#
# FreeType 2 PFR driver compilation rules for VMS
#
# Copyright 1996-2002 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.
CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.pfr])
OBJS=pfr.obj
all : $(OBJS)
library [--.lib]freetype.olb $(OBJS)
# EOF

22
src/pfr/module.mk Normal file
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@ -0,0 +1,22 @@
#
# FreeType 2 PFR module definition
#
# Copyright 1996-2002 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.
make_module_list: add_pfr_driver
add_pfr_driver:
$(OPEN_DRIVER)pfr_driver_class$(CLOSE_DRIVER)
$(ECHO_DRIVER)pfr $(ECHO_DRIVER_DESC)PFR/TrueDoc font files with extension *.pfr$(ECHO_DRIVER_DONE)
# EOF

28
src/pfr/pfr.c Normal file
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@ -0,0 +1,28 @@
/***************************************************************************/
/* */
/* pfr.c */
/* */
/* FreeType PFR driver component */
/* */
/* Copyright 1996-2002 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. */
/* */
/***************************************************************************/
#define FT_MAKE_OPTION_SINGLE_OBJECT
#include <ft2build.h>
#include "pfrload.c"
#include "pfrgload.c"
#include "pfrcmap.c"
#include "pfrobjs.c"
#include "pfrdrivr.c"
/* END */

129
src/pfr/pfrcmap.c Normal file
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@ -0,0 +1,129 @@
#include "pfrcmap.h"
#include "pfrobjs.h"
#include FT_INTERNAL_DEBUG_H
FT_CALLBACK_DEF( FT_Error )
pfr_cmap_init( PFR_CMap cmap )
{
PFR_Face face = (PFR_Face)FT_CMAP_FACE(cmap);
cmap->num_chars = face->phy_font.num_chars;
cmap->chars = face->phy_font.chars;
/* just for safety, check that the character entries are correctly */
/* sorted in increasing character code order.. */
{
FT_UInt n;
for ( n = 1; n < cmap->num_chars; n++ )
{
if ( cmap->chars[n-1].char_code >= cmap->chars[n].char_code )
FT_ASSERT(0);
}
}
return 0;
}
FT_CALLBACK_DEF( void )
pfr_cmap_done( PFR_CMap cmap )
{
cmap->chars = NULL;
cmap->num_chars = 0;
}
FT_CALLBACK_DEF( FT_UInt )
pfr_cmap_char_index( PFR_CMap cmap,
FT_UInt32 char_code )
{
FT_UInt min = 0;
FT_UInt max = cmap->num_chars;
FT_UInt mid;
PFR_Char gchar;
while ( min < max )
{
mid = min + ( max - min ) / 2;
gchar = cmap->chars + mid;
if ( gchar->char_code == char_code )
return mid;
if ( gchar->char_code < char_code )
min = mid + 1;
else
max = mid;
}
return 0;
}
FT_CALLBACK_DEF( FT_UInt )
pfr_cmap_char_next( PFR_CMap cmap,
FT_UInt32 *pchar_code )
{
FT_UInt result = 0;
FT_UInt32 char_code = *pchar_code + 1;
Restart:
{
FT_UInt min = 0;
FT_UInt max = cmap->num_chars;
FT_UInt mid;
PFR_Char gchar;
while ( min < max )
{
mid = min + ( ( max - min ) >> 1 );
gchar = cmap->chars + mid;
if ( gchar->char_code == char_code )
{
result = mid;
if ( result != 0 )
goto Exit;
char_code++;
goto Restart;
}
if ( gchar->char_code < char_code )
min = mid+1;
else
max = mid;
}
/* we didn't find it, but we have a pair just above it */
char_code = 0;
if ( min < cmap->num_chars )
{
gchar = cmap->chars + min;
result = min;
if ( result != 0 )
char_code = gchar->char_code;
}
}
Exit:
*pchar_code = char_code;
return result;
}
FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
pfr_cmap_class_rec =
{
sizeof ( PFR_CMapRec ),
(FT_CMap_InitFunc) pfr_cmap_init,
(FT_CMap_DoneFunc) pfr_cmap_done,
(FT_CMap_CharIndexFunc) pfr_cmap_char_index,
(FT_CMap_CharNextFunc) pfr_cmap_char_next
};

23
src/pfr/pfrcmap.h Normal file
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@ -0,0 +1,23 @@
#ifndef __PFR_CMAP_H__
#define __PFR_CMAP_H__
#include <ft2build.h>
#include FT_INTERNAL_OBJECTS_H
#include "pfrtypes.h"
FT_BEGIN_HEADER
typedef struct PFR_CMapRec_
{
FT_CMapRec cmap;
FT_UInt num_chars;
PFR_Char chars;
} PFR_CMapRec, *PFR_CMap;
FT_CALLBACK_TABLE const FT_CMap_ClassRec pfr_cmap_class_rec;
FT_END_HEADER
#endif /* __PFR_CMAP_H__ */

52
src/pfr/pfrdrivr.c Normal file
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@ -0,0 +1,52 @@
#include <ft2build.h>
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_STREAM_H
#include "pfrdrivr.h"
#include "pfrobjs.h"
FT_CALLBACK_TABLE_DEF
const FT_Driver_ClassRec pfr_driver_class =
{
{
ft_module_font_driver |
ft_module_driver_scalable,
sizeof( FT_DriverRec ),
"pfr",
0x10000L,
0x20000L,
0, /* format interface */
(FT_Module_Constructor) NULL,
(FT_Module_Destructor) NULL,
(FT_Module_Requester) NULL
},
sizeof( PFR_FaceRec ),
sizeof( PFR_SizeRec ),
sizeof( PFR_SlotRec ),
(FT_Face_InitFunc) pfr_face_init,
(FT_Face_DoneFunc) pfr_face_done,
(FT_Size_InitFunc) NULL,
(FT_Size_DoneFunc) NULL,
(FT_Slot_InitFunc) pfr_slot_init,
(FT_Slot_DoneFunc) pfr_slot_done,
(FT_Size_ResetPointsFunc) NULL,
(FT_Size_ResetPixelsFunc) NULL,
(FT_Slot_LoadFunc) pfr_slot_load,
(FT_CharMap_CharIndexFunc) NULL,
(FT_Face_GetKerningFunc) 0,
(FT_Face_AttachFunc) 0,
(FT_Face_GetAdvancesFunc) 0,
(FT_CharMap_CharNextFunc) NULL
};

38
src/pfr/pfrdrivr.h Normal file
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@ -0,0 +1,38 @@
/***************************************************************************/
/* */
/* pfrdrivr.h */
/* */
/* High-level Type PFR driver interface */
/* */
/* Copyright 1996-2002 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. */
/* */
/***************************************************************************/
#ifndef __PFR_DRIVER_H__
#define __PFR_DRIVER_H__
#include <ft2build.h>
#include FT_INTERNAL_DRIVER_H
FT_BEGIN_HEADER
FT_EXPORT_VAR( const FT_Driver_ClassRec ) pfr_driver_class;
FT_END_HEADER
#endif /* __PFR_DRIVER_H__ */
/* END */

751
src/pfr/pfrgload.c Normal file
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@ -0,0 +1,751 @@
#include "pfrgload.h"
#include "pfrload.h" /* for macro definitions */
#include FT_INTERNAL_DEBUG_H
#undef FT_COMPONENT
#define FT_COMPONENT trace_pfr
/**************************************************************************/
/**************************************************************************/
/***** *****/
/***** PFR GLYPH BUILDER *****/
/***** *****/
/**************************************************************************/
/**************************************************************************/
FT_LOCAL_DEF( void )
pfr_glyph_init( PFR_Glyph glyph,
FT_GlyphLoader loader )
{
FT_ZERO( glyph );
glyph->loader = loader;
glyph->path_begun = 0;
FT_GlyphLoader_Rewind( loader );
}
FT_LOCAL_DEF( void )
pfr_glyph_done( PFR_Glyph glyph )
{
FT_Memory memory = glyph->loader->memory;
FT_FREE( glyph->x_control );
glyph->y_control = NULL;
glyph->max_xy_control = 0;
glyph->num_x_control = 0;
glyph->num_y_control = 0;
FT_FREE( glyph->subs );
glyph->max_subs = 0;
glyph->num_subs = 0;
glyph->loader = NULL;
glyph->path_begun = 0;
}
/* close current contour, if any */
static void
pfr_glyph_close_contour( PFR_Glyph glyph )
{
FT_GlyphLoader loader = glyph->loader;
FT_Outline* outline = &loader->current.outline;
FT_Int last, first;
if ( !glyph->path_begun )
return;
/* compute first and last point indices in current glyph outline */
last = outline->n_points - 1;
first = 0;
if ( outline->n_contours > 0 )
first = outline->contours[ outline->n_contours-1 ];
/* if the last point falls on the same location than the first one */
/* we need to delete it */
if ( last > first )
{
FT_Vector* p1 = outline->points + first;
FT_Vector* p2 = outline->points + last;
if ( p1->x == p2->x && p1->y == p2->y )
{
outline->n_points--;
last--;
}
}
/* don't add empty contours */
if ( last >= first )
outline->contours[ outline->n_contours++ ] = (short) last;
glyph->path_begun = 0;
}
/* reset glyph to start the loading of a new glyph */
static void
pfr_glyph_start( PFR_Glyph glyph )
{
glyph->path_begun = 0;
}
static FT_Error
pfr_glyph_line_to( PFR_Glyph glyph,
FT_Vector* to )
{
FT_GlyphLoader loader = glyph->loader;
FT_Outline* outline = &loader->current.outline;
FT_Error error;
/* check that we've begun a new path */
FT_ASSERT( glyph->path_begun != 0 );
error = FT_GlyphLoader_CheckPoints( loader, 1, 0 );
if ( !error )
{
FT_UInt n = outline->n_points;
outline->points[n] = *to;
outline->tags [n] = FT_Curve_Tag_On;
outline->n_points++;
}
return error;
}
static FT_Error
pfr_glyph_curve_to( PFR_Glyph glyph,
FT_Vector* control1,
FT_Vector* control2,
FT_Vector* to )
{
FT_GlyphLoader loader = glyph->loader;
FT_Outline* outline = &loader->current.outline;
FT_Error error;
/* check that we've begun a new path */
FT_ASSERT( glyph->path_begun != 0 );
error = FT_GlyphLoader_CheckPoints( loader, 3, 0 );
if ( !error )
{
FT_Vector* vec = outline->points + outline->n_points;
FT_Byte* tag = (FT_Byte*)outline->tags + outline->n_points;
vec[0] = *control1;
vec[1] = *control2;
vec[2] = *to;
tag[0] = FT_Curve_Tag_Cubic;
tag[1] = FT_Curve_Tag_Cubic;
tag[2] = FT_Curve_Tag_On;
outline->n_points = (FT_Short)( outline->n_points + 3 );
}
return error;
}
static FT_Error
pfr_glyph_move_to( PFR_Glyph glyph,
FT_Vector* to )
{
FT_GlyphLoader loader = glyph->loader;
FT_Error error;
/* close current contour if any */
pfr_glyph_close_contour( glyph );
/* indicate that a new contour has started */
glyph->path_begun = 1;
/* check that there is room for a new contour and a new point */
error = FT_GlyphLoader_CheckPoints( loader, 1, 1 );
if ( !error )
/* add new start point */
error = pfr_glyph_line_to( glyph, to );
return error;
}
static void
pfr_glyph_end( PFR_Glyph glyph )
{
/* close current contour if any */
pfr_glyph_close_contour( glyph );
/* merge the current glyph into the stack */
FT_GlyphLoader_Add( glyph->loader );
}
/**************************************************************************/
/**************************************************************************/
/***** *****/
/***** PFR GLYPH LOADER *****/
/***** *****/
/**************************************************************************/
/**************************************************************************/
/* Load a simple glyph */
static FT_Error
pfr_glyph_load_simple( PFR_Glyph glyph,
FT_Byte* p,
FT_Byte* limit )
{
FT_Error error = 0;
FT_Memory memory = glyph->loader->memory;
FT_UInt flags, x_count, y_count, i, count, mask;
FT_Int x;
PFR_CHECK(1);
flags = PFR_NEXT_BYTE(p);
/* test for composite glyphs */
FT_ASSERT( (flags & PFR_GLYPH_IS_COMPOUND) == 0 );
x_count = 0;
y_count = 0;
if ( flags & PFR_GLYPH_1BYTE_XYCOUNT )
{
PFR_CHECK(1);
count = PFR_NEXT_BYTE(p);
x_count = (count & 15);
y_count = (count >> 4);
}
else
{
if ( flags & PFR_GLYPH_XCOUNT )
{
PFR_CHECK(1);
x_count = PFR_NEXT_BYTE(p);
}
if ( flags & PFR_GLYPH_YCOUNT )
{
PFR_CHECK(1);
y_count = PFR_NEXT_BYTE(p);
}
}
count = x_count + y_count;
/* re-allocate array when necessary */
if ( count > glyph->max_xy_control )
{
FT_UInt new_max = (count+7) & -8;
if ( FT_RENEW_ARRAY( glyph->x_control, glyph->max_xy_control, new_max ) )
goto Exit;
glyph->max_xy_control = new_max;
}
glyph->y_control = glyph->x_control + x_count;
mask = 0;
x = 0;
for ( i = 0; i < count; i++ )
{
if ( (i & 7) == 0 )
{
PFR_CHECK(1);
mask = PFR_NEXT_BYTE(p);
}
if ( mask & 1 )
{
PFR_CHECK(2);
x = PFR_NEXT_SHORT(p);
}
else
{
PFR_CHECK(1);
x += PFR_NEXT_BYTE(p);
}
glyph->x_control[i] = x;
mask >>= 1;
}
/* XXXX: for now we ignore the secondary stroke and edge definitions */
/* since we don't want to support native PFR hinting.. */
/* */
if ( flags & PFR_GLYPH_EXTRA_ITEMS )
{
error = pfr_extra_items_skip( &p, limit );
if (error) goto Exit;
}
pfr_glyph_start( glyph );
/* now load a simple glyph */
{
FT_Vector pos[4];
FT_Vector* cur;
pos[0].x = pos[0].y = 0;
pos[3] = pos[0];
for (;;)
{
FT_Int format, args_format = 0, args_count, n;
/***************************************************************/
/* read instruction */
/* */
PFR_CHECK(1);
format = PFR_NEXT_BYTE(p);
switch (format >> 4)
{
case 0: /* end glyph */
FT_TRACE6(( "- end glyph" ));
args_count = 0;
break;
case 1: /* general line operation */
FT_TRACE6(( "- general line" ));
goto Line1;
case 4: /* move to inside contour */
FT_TRACE6(( "- move to inside" ));
goto Line1;
case 5: /* move to outside contour */
FT_TRACE6(( "- move to outside" ));
Line1:
args_format = format & 15;
args_count = 1;
break;
case 2: /* horizontal line to */
FT_TRACE6(( "- horizontal line to cx.%d", format & 15 ));
pos[0].y = pos[3].y;
pos[0].x = glyph->x_control[ format & 15 ];
pos[3] = pos[0];
args_count = 0;
break;
case 3: /* vertical line to */
FT_TRACE6(( "- vertical line to cy.%d", format & 15 ));
pos[0].x = pos[3].x;
pos[0].y = glyph->y_control[ format & 15 ];
pos[3] = pos[0];
args_count = 0;
break;
case 6: /* horizontal to vertical curve */
FT_TRACE6(( "- hv curve " ));
args_format = 0xB8E;
args_count = 3;
break;
case 7: /* vertical to horizontal curve */
FT_TRACE6(( "- vh curve" ));
args_format = 0xE2B;
args_count = 3;
break;
default: /* general curve to */
FT_TRACE6(( "- general curve" ));
args_count = 4;
args_format = (format & 15);
}
/***********************************************************/
/* now read arguments */
/* */
cur = pos;
for ( n = 0; n < args_count; n++ )
{
FT_Int index, delta;
/* read the X argument */
switch ( args_format & 3 )
{
case 0: /* 8-bit index */
PFR_CHECK(1);
index = PFR_NEXT_BYTE(p);
cur->x = glyph->x_control[index];
FT_TRACE7(( " cx#%d", index ));
break;
case 1: /* 16-bit value */
PFR_CHECK(2);
cur->x = PFR_NEXT_SHORT(p);
FT_TRACE7(( " x.%d", cur->x ));
break;
case 2: /* 8-bit delta */
PFR_CHECK(1);
delta = PFR_NEXT_INT8(p);
cur->x = pos[3].x + delta;
FT_TRACE7(( " dx.%d", delta ));
break;
default:
FT_TRACE7(( " |" ));
cur->x = pos[3].x;
}
/* read the Y argument */
switch ( (args_format >> 2) & 3 )
{
case 0: /* 8-bit index */
PFR_CHECK(1);
index = PFR_NEXT_BYTE(p);
cur->y = glyph->y_control[index];
FT_TRACE7(( " cy#%d", index ));
break;
case 1: /* 16-bit absolute value */
PFR_CHECK(2);
cur->y = PFR_NEXT_SHORT(p);
FT_TRACE7(( " y.%d", cur->y ));
break;
case 2: /* 8-bit delta */
PFR_CHECK(1);
delta = PFR_NEXT_INT8(p);
cur->y = pos[3].y + delta;
FT_TRACE7(( " dy.%d", delta ));
break;
default:
FT_TRACE7(( " -" ));
cur->y = pos[3].y;
}
/* read the additional format flag for the general curve */
if ( n == 0 && args_count == 4 )
{
PFR_CHECK(1);
args_format = PFR_NEXT_BYTE(p);
args_count--;
}
else
args_format >>= 4;
/* save the previous point */
pos[3] = cur[0];
cur++;
}
FT_TRACE7(( "\n" ));
/***********************************************************/
/* finally, execute instruction */
/* */
switch (format >> 4)
{
case 0: /* end glyph => EXIT */
pfr_glyph_end( glyph );
goto Exit;
case 1: /* line operations */
case 2:
case 3:
error = pfr_glyph_line_to( glyph, pos );
goto Test_Error;
case 4: /* move to inside contour */
case 5: /* move to outside contour */
error = pfr_glyph_move_to( glyph, pos );
goto Test_Error;
default: /* curve operations */
error = pfr_glyph_curve_to( glyph, pos, pos+1, pos+2 );
Test_Error: /* test error condition */
if (error)
goto Exit;
}
} /* for (;;) */
}
Exit:
return error;
Too_Short:
error = FT_Err_Invalid_Table;
FT_ERROR(( "pfr_glyph_load: invalid glyph data\n" ));
goto Exit;
}
/* load a composite/compound glyph */
static FT_Error
pfr_glyph_load_compound( PFR_Glyph glyph,
FT_Byte* p,
FT_Byte* limit )
{
FT_Error error = 0;
FT_GlyphLoader loader = glyph->loader;
FT_Memory memory = loader->memory;
PFR_SubGlyph subglyph;
FT_UInt flags, i, count, org_count;
FT_Int x_pos, y_pos;
PFR_CHECK(1);
flags = PFR_NEXT_BYTE(p);
/* test for composite glyphs */
FT_ASSERT( (flags & PFR_GLYPH_IS_COMPOUND) != 0 );
count = flags & 0x3F;
/* ignore extra items when present */
/* */
if ( flags & PFR_GLYPH_EXTRA_ITEMS )
{
error = pfr_extra_items_skip( &p, limit );
if (error) goto Exit;
}
/* we can't rely on the FT_GlyphLoader to load sub-glyphs, because */
/* the PFR format is so damn stupid that it uses direct file offsets */
/* to point to the sub-glyphs (instead of glyph indices).. */
/* */
/* for now, we'll load the list of sub-glyphs in a different array */
/* but this will prevent us from using the auto-hinter at its best */
/* quality.. */
/* */
org_count = glyph->num_subs;
if ( org_count + count > glyph->max_subs )
{
FT_UInt new_max = ( org_count + count + 3 ) & -4;
if ( FT_RENEW_ARRAY( glyph->subs, glyph->max_subs, new_max ) )
goto Exit;
glyph->max_subs = new_max;
}
subglyph = glyph->subs + org_count;
x_pos = 0;
y_pos = 0;
for ( i = 0; i < count; i++, subglyph++ )
{
FT_UInt format;
PFR_CHECK(1);
format = PFR_NEXT_BYTE(p);
/* read scale when available */
subglyph->x_scale = 0x10000L;
if ( format & PFR_SUBGLYPH_XSCALE )
{
PFR_CHECK(2);
subglyph->x_scale = PFR_NEXT_SHORT(p) << 4;
}
subglyph->y_scale = 0x10000L;
if ( format & PFR_SUBGLYPH_YSCALE )
{
PFR_CHECK(2);
subglyph->y_scale = PFR_NEXT_SHORT(p) << 4;
}
/* read offset */
switch ( format & 3 )
{
case 1:
PFR_CHECK(2);
x_pos = PFR_NEXT_SHORT(p);
break;
case 2:
PFR_CHECK(1);
x_pos += PFR_NEXT_INT8(p);
break;
default:
;
}
switch ( (format >> 2) & 3 )
{
case 1:
PFR_CHECK(2);
y_pos = PFR_NEXT_SHORT(p);
break;
case 2:
PFR_CHECK(1);
y_pos += PFR_NEXT_INT8(p);
break;
default:
;
}
subglyph->x_delta = x_pos;
subglyph->y_delta = y_pos;
/* read glyph position and size now */
if ( format & PFR_SUBGLYPH_2BYTE_SIZE )
{
PFR_CHECK(2);
subglyph->gps_size = PFR_NEXT_USHORT(p);
}
else
{
PFR_CHECK(1);
subglyph->gps_size = PFR_NEXT_BYTE(p);
}
if ( format & PFR_SUBGLYPH_3BYTE_OFFSET )
{
PFR_CHECK(3);
subglyph->gps_offset = PFR_NEXT_LONG(p);
}
else
{
PFR_CHECK(2);
subglyph->gps_offset = PFR_NEXT_USHORT(p);
}
glyph->num_subs++;
}
Exit:
return error;
Too_Short:
error = FT_Err_Invalid_Table;
FT_ERROR(( "pfr_glyph_load: invalid glyph data\n" ));
goto Exit;
}
static FT_Error
pfr_glyph_load_rec( PFR_Glyph glyph,
FT_Stream stream,
FT_ULong gps_offset,
FT_ULong offset,
FT_ULong size )
{
FT_Error error;
FT_Byte* p;
FT_Byte* limit;
if ( FT_STREAM_SEEK( gps_offset + offset ) ||
FT_FRAME_ENTER( size ) )
goto Exit;
p = (FT_Byte*) stream->cursor;
limit = p + size;
if ( size > 0 && *p & PFR_GLYPH_IS_COMPOUND )
{
FT_Int n, old_count, count;
FT_GlyphLoader loader = glyph->loader;
FT_Outline* base = &loader->base.outline;
old_count = glyph->num_subs;
/* this is a compound glyph - load it */
error = pfr_glyph_load_compound( glyph, p, limit );
FT_FRAME_EXIT();
if ( error ) goto Exit;
count = glyph->num_subs - old_count;
/* now, load each individual glyph */
for ( n = 0; n < count; n++ )
{
FT_Int i, old_points, num_points;
PFR_SubGlyph subglyph;
subglyph = glyph->subs + old_count + n;
old_points = base->n_points;
error = pfr_glyph_load_rec( glyph, stream, gps_offset,
subglyph->gps_offset, subglyph->gps_size );
if ( error )
goto Exit;
/* note that the 'glyph->subs' might have been re-allocated */
subglyph = glyph->subs + old_count + n;
num_points = base->n_points - old_points;
/* translate and eventually scale the new glyph points */
if ( subglyph->x_scale != 0x10000L || subglyph->y_scale != 0x10000L )
{
FT_Vector* vec = base->points + old_points;
for ( i = 0; i < num_points; i++, vec++ )
{
vec->x = FT_MulFix( vec->x, subglyph->x_scale ) + subglyph->x_delta;
vec->y = FT_MulFix( vec->y, subglyph->y_scale ) + subglyph->y_delta;
}
}
else
{
FT_Vector* vec = loader->base.outline.points + old_points;
for ( i = 0; i < num_points; i++, vec++ )
{
vec->x += subglyph->x_delta;
vec->y += subglyph->y_delta;
}
}
/* proceed to next sub-glyph */
}
}
else
{
/* load a simple glyph */
error = pfr_glyph_load_simple( glyph, p, limit );
FT_FRAME_EXIT();
}
Exit:
return error;
}
FT_LOCAL_DEF( FT_Error )
pfr_glyph_load( PFR_Glyph glyph,
FT_Stream stream,
FT_ULong gps_offset,
FT_ULong offset,
FT_ULong size )
{
/* initialize glyph loader */
FT_GlyphLoader_Rewind( glyph->loader );
/* load the glyph, recursively when needed */
return pfr_glyph_load_rec( glyph, stream, gps_offset, offset, size );
}

27
src/pfr/pfrgload.h Normal file
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@ -0,0 +1,27 @@
#ifndef __PFR_GLYPH_LOAD_H__
#define __PFR_GLYPH_LOAD_H__
#include "pfrtypes.h"
FT_BEGIN_HEADER
FT_LOCAL( void )
pfr_glyph_init( PFR_Glyph glyph,
FT_GlyphLoader loader );
FT_LOCAL( void )
pfr_glyph_done( PFR_Glyph glyph );
FT_LOCAL( FT_Error )
pfr_glyph_load( PFR_Glyph glyph,
FT_Stream stream,
FT_ULong gps_offset,
FT_ULong offset,
FT_ULong size );
FT_END_HEADER
#endif /* __PFR_GLYPH_LOAD_H__ */

657
src/pfr/pfrload.c Normal file
View File

@ -0,0 +1,657 @@
#include "pfrload.h"
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_STREAM_H
#undef FT_COMPONENT
#define FT_COMPONENT trace_pfr
/***********************************************************************/
/***********************************************************************/
/***** *****/
/***** EXTRA ITEMS *****/
/***** *****/
/***********************************************************************/
/***********************************************************************/
FT_LOCAL_DEF( FT_Error )
pfr_extra_items_skip( FT_Byte* *pp, FT_Byte* limit )
{
return pfr_extra_items_parse( pp, limit, NULL, NULL );
}
FT_LOCAL_DEF( FT_Error )
pfr_extra_items_parse( FT_Byte* *pp,
FT_Byte* limit,
PFR_ExtraItem item_list,
FT_Pointer item_data )
{
FT_Error error = 0;
FT_Byte* p = *pp;
FT_UInt num_items, item_type, item_size;
PFR_CHECK(1);
num_items = PFR_NEXT_BYTE(p);
for ( ; num_items > 0; num_items-- )
{
PFR_CHECK(2);
item_size = PFR_NEXT_BYTE(p);
item_type = PFR_NEXT_BYTE(p);
PFR_CHECK(item_size);
if ( item_list )
{
PFR_ExtraItem extra = item_list;
for ( extra = item_list; extra->parser != NULL; extra++ )
{
if ( extra->type == item_type )
{
error = extra->parser( p, p + item_size, item_data );
if ( error ) goto Exit;
break;
}
}
}
p += item_size;
}
Exit:
*pp = p;
return error;
Too_Short:
FT_ERROR(( "pfr.extra_items.skip: invalid extra items table\n" ));
error = FT_Err_Invalid_Table;
goto Exit;
}
/***********************************************************************/
/***********************************************************************/
/***** *****/
/***** PFR HEADER *****/
/***** *****/
/***********************************************************************/
/***********************************************************************/
static const FT_Frame_Field pfr_header_fields[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PFR_HeaderRec
FT_FRAME_START(58),
FT_FRAME_ULONG (signature),
FT_FRAME_USHORT(version),
FT_FRAME_USHORT(signature2),
FT_FRAME_USHORT(header_size),
FT_FRAME_USHORT(log_dir_size),
FT_FRAME_USHORT(log_dir_offset),
FT_FRAME_USHORT(log_font_max_size),
FT_FRAME_UOFF3 (log_font_section_size),
FT_FRAME_UOFF3 (log_font_section_offset),
FT_FRAME_USHORT(phy_font_max_size),
FT_FRAME_UOFF3 (phy_font_section_size),
FT_FRAME_UOFF3 (phy_font_section_offset),
FT_FRAME_USHORT(gps_max_size),
FT_FRAME_UOFF3 (gps_section_size),
FT_FRAME_UOFF3 (gps_section_offset),
FT_FRAME_BYTE (max_blue_values),
FT_FRAME_BYTE (max_x_orus),
FT_FRAME_BYTE (max_y_orus),
FT_FRAME_BYTE (phy_font_max_size_high),
FT_FRAME_BYTE (color_flags),
FT_FRAME_UOFF3 (bct_max_size),
FT_FRAME_UOFF3 (bct_set_max_size),
FT_FRAME_UOFF3 (phy_bct_set_max_size),
FT_FRAME_USHORT(num_phy_fonts),
FT_FRAME_BYTE (max_vert_stem_snap),
FT_FRAME_BYTE (max_horz_stem_snap),
FT_FRAME_USHORT(max_chars),
FT_FRAME_END
};
FT_LOCAL_DEF( FT_Error )
pfr_header_load( PFR_Header header,
FT_Stream stream )
{
FT_Error error;
/* read header directly */
if ( !FT_STREAM_SEEK( 0 ) &&
!FT_STREAM_READ_FIELDS( pfr_header_fields, header ) )
{
/* make a few adjustments to the header */
header->phy_font_max_size +=
(FT_UInt32)header->phy_font_max_size_high << 16;
}
return error;
}
FT_LOCAL_DEF( FT_Bool )
pfr_header_check( PFR_Header header )
{
FT_Bool result = 1;
/* check signature and header size */
if ( header->signature != 0x50465230 || /* "PFR0" */
header->version > 4 ||
header->header_size < 58 ||
header->signature2 != 0x0d0a ) /* CR/LF */
{
result = 0;
}
return result;
}
/***********************************************************************/
/***********************************************************************/
/***** *****/
/***** PFR LOGICAL FONTS *****/
/***** *****/
/***********************************************************************/
/***********************************************************************/
FT_LOCAL_DEF( FT_Error )
pfr_log_font_count( FT_Stream stream,
FT_UInt32 section_offset,
FT_UInt *acount )
{
FT_Error error;
FT_UInt count;
FT_UInt result = 0;
if ( FT_STREAM_SEEK( section_offset ) || FT_READ_USHORT(count) )
goto Exit;
result = count;
Exit:
*acount = result;
return error;
}
FT_LOCAL_DEF( FT_Error )
pfr_log_font_load( PFR_LogFont log_font,
FT_Stream stream,
FT_UInt index,
FT_UInt32 section_offset,
FT_Bool size_increment )
{
FT_UInt num_log_fonts;
FT_UInt flags;
FT_UInt32 offset;
FT_UInt32 size;
FT_Error error;
if ( FT_STREAM_SEEK( section_offset ) || FT_READ_USHORT(num_log_fonts) )
goto Exit;
if ( index >= num_log_fonts )
return FT_Err_Invalid_Argument;
if ( FT_STREAM_SKIP( index*5 ) ||
FT_READ_USHORT(size) ||
FT_READ_UOFF3 (offset) )
goto Exit;
/* save logical font size and offset */
log_font->size = size;
log_font->offset = offset;
/* now, check the rest of the table before loading it */
{
FT_Byte* p;
FT_Byte* limit;
FT_UInt local;
if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( size ) )
goto Exit;
p = stream->cursor;
limit = p + size;
PFR_CHECK(13);
log_font->matrix[0] = PFR_NEXT_LONG(p);
log_font->matrix[1] = PFR_NEXT_LONG(p);
log_font->matrix[2] = PFR_NEXT_LONG(p);
log_font->matrix[3] = PFR_NEXT_LONG(p);
flags = PFR_NEXT_BYTE(p);
local = 0;
if ( flags & PFR_LOG_STROKE )
{
local++;
if ( flags & PFR_LOG_2BYTE_STROKE )
local++;
if ( (flags & PFR_LINE_JOIN_MASK) == PFR_LINE_JOIN_MITER )
local += 3;
}
if ( flags & PFR_LOG_BOLD )
{
local++;
if ( flags & PFR_LOG_2BYTE_BOLD )
local++;
}
PFR_CHECK(local);
if ( flags & PFR_LOG_STROKE )
{
log_font->stroke_thickness = ( flags & PFR_LOG_2BYTE_STROKE )
? PFR_NEXT_SHORT(p)
: PFR_NEXT_BYTE(p);
if ( (flags & PFR_LINE_JOIN_MASK) == PFR_LINE_JOIN_MITER )
log_font->miter_limit = PFR_NEXT_LONG(p);
}
if ( flags & PFR_LOG_BOLD )
{
log_font->bold_thickness = ( flags & PFR_LOG_2BYTE_BOLD )
? PFR_NEXT_SHORT(p)
: PFR_NEXT_BYTE(p);
}
if ( flags & PFR_LOG_EXTRA_ITEMS )
{
error = pfr_extra_items_skip( &p, limit );
if (error) goto Fail;
}
PFR_CHECK(5);
log_font->phys_size = PFR_NEXT_USHORT(p);
log_font->phys_offset = PFR_NEXT_ULONG(p);
if ( size_increment )
{
PFR_CHECK(1);
log_font->phys_size += (FT_UInt32)PFR_NEXT_BYTE(p) << 16;
}
}
Fail:
FT_FRAME_EXIT();
Exit:
return error;
Too_Short:
FT_ERROR(( "pfr_log_font_load: invalid logical font table\n" ));
error = FT_Err_Invalid_Table;
goto Fail;
}
/***********************************************************************/
/***********************************************************************/
/***** *****/
/***** PFR PHYSICAL FONTS *****/
/***** *****/
/***********************************************************************/
/***********************************************************************/
/* load bitmap strikes lists */
FT_CALLBACK_DEF( FT_Error )
pfr_extra_item_load_bitmap_info( FT_Byte* p,
FT_Byte* limit,
PFR_PhyFont phy_font )
{
FT_Memory memory = phy_font->memory;
PFR_Strike strike;
FT_UInt flags0;
FT_UInt n, count, size1;
FT_Error error = 0;
PFR_CHECK(5);
p += 3; /* skip bctSize */
flags0 = PFR_NEXT_BYTE(p);
count = PFR_NEXT_BYTE(p);
/* re-allocate when needed */
if ( phy_font->num_strikes + count > phy_font->max_strikes )
{
FT_UInt new_max = (phy_font->num_strikes + count + 3) & -4;
if ( FT_RENEW_ARRAY( phy_font->strikes, phy_font->num_strikes, new_max ) )
goto Exit;
phy_font->max_strikes = new_max;
}
size1 = 1 + 1 + 1 + 2 + 2 + 1;
if ( flags0 & PFR_STRIKE_2BYTE_XPPM )
size1++;
if ( flags0 & PFR_STRIKE_2BYTE_YPPM )
size1++;
if ( flags0 & PFR_STRIKE_3BYTE_SIZE )
size1++;
if ( flags0 & PFR_STRIKE_3BYTE_OFFSET )
size1++;
if ( flags0 & PFR_STRIKE_2BYTE_COUNT )
size1++;
strike = phy_font->strikes + phy_font->num_strikes;
PFR_CHECK( count*size1 );
for ( n = 0; n < count; n++, strike++ )
{
strike->x_ppm = ( flags0 & PFR_STRIKE_2BYTE_XPPM )
? PFR_NEXT_USHORT(p)
: PFR_NEXT_BYTE(p);
strike->y_ppm = ( flags0 & PFR_STRIKE_2BYTE_YPPM )
? PFR_NEXT_USHORT(p)
: PFR_NEXT_BYTE(p);
strike->flags = PFR_NEXT_BYTE(p);
strike->bct_size = ( flags0 & PFR_STRIKE_3BYTE_SIZE )
? PFR_NEXT_ULONG(p)
: PFR_NEXT_USHORT(p);
strike->bct_offset = ( flags0 & PFR_STRIKE_3BYTE_OFFSET )
? PFR_NEXT_ULONG(p)
: PFR_NEXT_USHORT(p);
strike->num_bitmaps = ( flags0 & PFR_STRIKE_2BYTE_COUNT )
? PFR_NEXT_USHORT(p)
: PFR_NEXT_BYTE(p);
}
phy_font->num_strikes += count;
Exit:
return error;
Too_Short:
error = FT_Err_Invalid_Table;
FT_ERROR(( "pfr.extra_item_load: invalid bitmap info table\n" ));
goto Exit;
}
/* load font ID, i.e. name */
FT_CALLBACK_DEF( FT_Error )
pfr_extra_item_load_font_id( FT_Byte* p,
FT_Byte* limit,
PFR_PhyFont phy_font )
{
FT_Error error = 0;
FT_Memory memory = phy_font->memory;
FT_UInt len = (FT_UInt)( limit - p );
if ( phy_font->font_id != NULL )
goto Exit;
if ( FT_ALLOC( phy_font->font_id, len+1 ) )
goto Exit;
/* copy font ID name, and terminate it for safety */
FT_MEM_COPY( phy_font->font_id, p, len );
phy_font->font_id[len] = 0;
Exit:
return error;
}
/* load stem snap tables */
FT_CALLBACK_DEF( FT_Error )
pfr_extra_item_load_stem_snaps( FT_Byte* p,
FT_Byte* limit,
PFR_PhyFont phy_font )
{
FT_UInt count, num_vert, num_horz;
FT_Int* snaps;
FT_Error error = 0;
FT_Memory memory = phy_font->memory;
if ( phy_font->vertical.stem_snaps != NULL )
goto Exit;
PFR_CHECK(1);
count = PFR_NEXT_BYTE(p);
num_vert = count & 15;
num_horz = count >> 4;
count = num_vert + num_horz;
PFR_CHECK( count*2 );
if ( FT_NEW_ARRAY( snaps, count ) )
goto Exit;
phy_font->vertical.stem_snaps = snaps;
phy_font->horizontal.stem_snaps = snaps + num_vert;
for ( ; count > 0; count--, snaps++ )
*snaps = FT_NEXT_SHORT(p);
Exit:
return error;
Too_Short:
error = FT_Err_Invalid_Table;
FT_ERROR(( "pfr.exta_item_load: invalid stem snaps table\n" ));
goto Exit;
}
static const PFR_ExtraItemRec pfr_phy_font_extra_items[] =
{
{ 1, (PFR_ExtraItem_ParseFunc) pfr_extra_item_load_bitmap_info },
{ 2, (PFR_ExtraItem_ParseFunc) pfr_extra_item_load_font_id },
{ 3, (PFR_ExtraItem_ParseFunc) pfr_extra_item_load_stem_snaps },
{ 0, NULL }
};
FT_LOCAL_DEF( void )
pfr_phy_font_done( PFR_PhyFont phy_font,
FT_Memory memory )
{
if ( phy_font->font_id )
FT_FREE( phy_font->font_id );
FT_FREE( phy_font->vertical.stem_snaps );
phy_font->vertical.num_stem_snaps = 0;
phy_font->horizontal.stem_snaps = NULL;
phy_font->horizontal.num_stem_snaps = 0;
FT_FREE( phy_font->strikes );
phy_font->num_strikes = 0;
phy_font->max_strikes = 0;
FT_FREE( phy_font->chars );
phy_font->num_chars = 0;
phy_font->chars_offset = 0;
}
FT_LOCAL_DEF( FT_Error )
pfr_phy_font_load( PFR_PhyFont phy_font,
FT_Stream stream,
FT_UInt32 offset,
FT_UInt32 size )
{
FT_Error error;
FT_Memory memory = stream->memory;
FT_UInt flags, num_aux;
FT_Byte* p;
FT_Byte* limit;
phy_font->memory = memory;
phy_font->offset = offset;
if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( size ) )
goto Exit;
p = stream->cursor;
limit = p + size;
PFR_CHECK( 15 );
phy_font->font_ref_number = PFR_NEXT_USHORT(p);
phy_font->outline_resolution = PFR_NEXT_USHORT(p);
phy_font->metrics_resolution = PFR_NEXT_USHORT(p);
phy_font->bbox.xMin = PFR_NEXT_SHORT(p);
phy_font->bbox.yMin = PFR_NEXT_SHORT(p);
phy_font->bbox.xMax = PFR_NEXT_SHORT(p);
phy_font->bbox.yMax = PFR_NEXT_SHORT(p);
phy_font->flags = flags = PFR_NEXT_BYTE(p);
/* get the standard advance for non-proprotional fonts */
if ( !(flags & PFR_PHY_PROPORTIONAL) )
{
PFR_CHECK(2);
phy_font->standard_advance = PFR_NEXT_SHORT(p);
}
/* load the extra items when present */
if ( flags & PFR_PHY_EXTRA_ITEMS )
{
error =
pfr_extra_items_parse( &p, limit, pfr_phy_font_extra_items, phy_font );
if ( error )
goto Fail;
}
/* skip the aux bytes */
PFR_CHECK(3);
num_aux = PFR_NEXT_ULONG(p);
PFR_CHECK(num_aux);
p += num_aux;
/* read the blue values */
{
FT_UInt n, count;
PFR_CHECK( 1 );
phy_font->num_blue_values = count = PFR_NEXT_BYTE(p);
PFR_CHECK( count*2 );
if ( FT_NEW_ARRAY( phy_font->blue_values, count ) )
goto Fail;
for ( n = 0; n < count; n++ )
phy_font->blue_values[n] = PFR_NEXT_SHORT(p);
}
PFR_CHECK(8);
phy_font->blue_fuzz = PFR_NEXT_BYTE(p);
phy_font->blue_scale = PFR_NEXT_BYTE(p);
phy_font->vertical.standard = PFR_NEXT_USHORT(p);
phy_font->horizontal.standard = PFR_NEXT_USHORT(p);
/* read the character descriptors */
{
FT_UInt n, count, size;
phy_font->num_chars = count = PFR_NEXT_USHORT(p);
phy_font->chars_offset = offset + (p - stream->cursor);
if ( FT_NEW_ARRAY( phy_font->chars, count ) )
goto Fail;
size = 1 + 1 + 2;
if ( flags & PFR_PHY_2BYTE_CHARCODE )
size += 1;
if ( flags & PFR_PHY_PROPORTIONAL )
size += 2;
if ( flags & PFR_PHY_ASCII_CODE )
size += 1;
if ( flags & PFR_PHY_2BYTE_GPS_SIZE )
size += 1;
if ( flags & PFR_PHY_3BYTE_GPS_OFFSET )
size += 1;
PFR_CHECK( count*size );
for ( n = 0; n < count; n++ )
{
PFR_Char cur = &phy_font->chars[n];
cur->char_code = ( flags & PFR_PHY_2BYTE_CHARCODE )
? PFR_NEXT_USHORT(p)
: PFR_NEXT_BYTE(p);
cur->advance = ( flags & PFR_PHY_PROPORTIONAL )
? PFR_NEXT_SHORT(p)
: phy_font->standard_advance;
#if 0
cur->ascii = ( flags & PFR_PHY_ASCII_CODE )
? PFR_NEXT_BYTE(p)
: 0;
#else
if ( flags & PFR_PHY_ASCII_CODE )
p += 1;
#endif
cur->gps_size = ( flags & PFR_PHY_2BYTE_GPS_SIZE )
? PFR_NEXT_USHORT(p)
: PFR_NEXT_BYTE(p);
cur->gps_offset = ( flags & PFR_PHY_3BYTE_GPS_OFFSET )
? PFR_NEXT_ULONG(p)
: PFR_NEXT_USHORT(p);
}
}
/* that's it !! */
Fail:
FT_FRAME_EXIT();
Exit:
return error;
Too_Short:
error = FT_Err_Invalid_Table;
FT_ERROR(( "pfr_phy_font_load: invalid physical font table\n" ));
goto Fail;
}

89
src/pfr/pfrload.h Normal file
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#ifndef __PFR_LOAD_H__
#define __PFR_LOAD_H__
#include "pfrobjs.h"
#include FT_INTERNAL_STREAM_H
FT_BEGIN_HEADER
#ifdef PFR_CONFIG_NO_CHECKS
# define PFR_CHECK(x) do { } while (0)
#else
# define PFR_CHECK(x) do { if ( p + (x) > limit ) goto Too_Short; } while (0)
#endif
#define PFR_NEXT_BYTE(p) FT_NEXT_BYTE(p)
#define PFR_NEXT_INT8(p) FT_NEXT_CHAR(p)
#define PFR_NEXT_SHORT(p) FT_NEXT_SHORT(p)
#define PFR_NEXT_USHORT(p) FT_NEXT_USHORT(p)
#define PFR_NEXT_LONG(p) FT_NEXT_OFF3(p)
#define PFR_NEXT_ULONG(p) FT_NEXT_UOFF3(p)
/* handling extra items */
typedef FT_Error (*PFR_ExtraItem_ParseFunc)( FT_Byte* p,
FT_Byte* limit,
FT_Pointer data );
typedef struct PFR_ExtraItemRec_
{
FT_UInt type;
PFR_ExtraItem_ParseFunc parser;
} PFR_ExtraItemRec;
typedef const struct PFR_ExtraItemRec_* PFR_ExtraItem;
FT_LOCAL( FT_Error )
pfr_extra_items_skip( FT_Byte* *pp, FT_Byte* limit );
FT_LOCAL( FT_Error )
pfr_extra_items_parse( FT_Byte* *pp,
FT_Byte* limit,
PFR_ExtraItem item_list,
FT_Pointer item_data );
/* load a PFR header */
FT_LOCAL( FT_Error )
pfr_header_load( PFR_Header header,
FT_Stream stream );
/* check a PFR header */
FT_LOCAL( FT_Bool )
pfr_header_check( PFR_Header header );
/* return number of logical fonts in this file */
FT_LOCAL( FT_Error )
pfr_log_font_count( FT_Stream stream,
FT_UInt32 log_section_offset,
FT_UInt *acount );
/* load a pfr logical font entry */
FT_LOCAL( FT_Error )
pfr_log_font_load( PFR_LogFont log_font,
FT_Stream stream,
FT_UInt face_index,
FT_UInt32 section_offset,
FT_Bool size_increment );
/* load a physical font entry */
FT_LOCAL( FT_Error )
pfr_phy_font_load( PFR_PhyFont phy_font,
FT_Stream stream,
FT_UInt32 offset,
FT_UInt32 size );
/* finalize a physical font */
FT_LOCAL( void )
pfr_phy_font_done( PFR_PhyFont phy_font,
FT_Memory memory );
/* */
FT_END_HEADER
#endif /* __PFR_LOAD_H__ */

280
src/pfr/pfrobjs.c Normal file
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@ -0,0 +1,280 @@
#include "pfrobjs.h"
#include "pfrload.h"
#include "pfrgload.h"
#include "pfrcmap.h"
#include FT_OUTLINE_H
#include FT_INTERNAL_DEBUG_H
#undef FT_COMPONENT
#define FT_COMPONENT trace_pfr
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** FACE OBJECT METHODS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL_DEF( void )
pfr_face_done( PFR_Face face )
{
/* finalize the physical font record */
pfr_phy_font_done( &face->phy_font, FT_FACE_MEMORY(face) );
/* no need to finalize the logical font or the header */
}
FT_LOCAL_DEF( FT_Error )
pfr_face_init( FT_Stream stream,
PFR_Face face,
FT_Int face_index )
{
FT_Error error;
/* load the header and check it */
error = pfr_header_load( &face->header, stream );
if ( error ) goto Exit;
if ( !pfr_header_check( &face->header ) )
{
FT_TRACE4(( "PFR.Face.Init: not a valid PFR font\n" ));
error = FT_Err_Invalid_Argument;
goto Exit;
}
/* check face index */
{
FT_UInt num_faces;
error = pfr_log_font_count( stream,
face->header.log_dir_offset,
&num_faces );
if ( error ) goto Exit;
face->root.num_faces = num_faces;
}
if ( face_index < 0 )
goto Exit;
if ( face_index >= face->root.num_faces )
{
FT_ERROR(( "PFR.Face.Init: invalid face index\n" ));
error = FT_Err_Invalid_Argument;
goto Exit;
}
/* load the face */
error = pfr_log_font_load(
&face->log_font, stream, face_index,
face->header.log_dir_offset,
FT_BOOL( face->header.phy_font_max_size_high != 0 ) );
if ( error )
goto Exit;
/* now load the physical font descriptor */
error = pfr_phy_font_load( &face->phy_font, stream,
face->log_font.phys_offset,
face->log_font.phys_size );
if ( error )
goto Exit;
/* now, set-up all root face fields */
{
FT_Face root = FT_FACE(face);
PFR_PhyFont phy_font = &face->phy_font;
root->face_index = face_index;
root->num_glyphs = phy_font->num_chars;
root->face_flags = FT_FACE_FLAG_SCALABLE;
if ( (phy_font->flags & PFR_PHY_PROPORTIONAL) == 0 )
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
if ( phy_font->flags & PFR_PHY_VERTICAL )
root->face_flags |= FT_FACE_FLAG_HORIZONTAL;
else
root->face_flags |= FT_FACE_FLAG_VERTICAL;
/* XXXX: kerning and embedded bitmap support isn't there yet */
root->family_name = phy_font->font_id;
root->style_name = NULL; /* no style name in font file */
root->num_fixed_sizes = 0;
root->available_sizes = 0;
root->bbox = phy_font->bbox;
root->units_per_EM = (FT_UShort) phy_font->outline_resolution;
root->ascender = (FT_Short) phy_font->bbox.yMax;
root->descender = (FT_Short) phy_font->bbox.yMin;
root->height = (FT_Short)( ((root->ascender - root->descender)*12) / 10 );
/* now compute maximum advance width */
if ( (phy_font->flags & PFR_PHY_PROPORTIONAL) == 0 )
root->max_advance_width = (FT_Short) phy_font->standard_advance;
else
{
FT_Int max = 0;
FT_UInt count = phy_font->num_chars;
PFR_Char gchar = phy_font->chars;
for ( ; count > 0; count--, gchar++ )
{
if ( max < gchar->advance )
max = gchar->advance;
}
root->max_advance_width = (FT_Short) max;
}
root->max_advance_height = root->height;
root->underline_position = (FT_Short)( - root->units_per_EM/10 );
root->underline_thickness = (FT_Short)( root->units_per_EM/30 );
/* create charmap */
{
FT_CharMapRec charmap;
charmap.face = root;
charmap.platform_id = 3;
charmap.encoding_id = 1;
charmap.encoding = ft_encoding_unicode;
FT_CMap_New( &pfr_cmap_class_rec, NULL, &charmap, NULL );
}
}
Exit:
return error;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** SLOT OBJECT METHOD *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_LOCAL_DEF( FT_Error )
pfr_slot_init( PFR_Slot slot )
{
FT_GlyphLoader loader = slot->root.internal->loader;
pfr_glyph_init( &slot->glyph, loader );
return 0;
}
FT_LOCAL_DEF( void )
pfr_slot_done( PFR_Slot slot )
{
pfr_glyph_done( &slot->glyph );
}
FT_LOCAL_DEF( FT_Error )
pfr_slot_load( PFR_Slot slot,
PFR_Size size,
FT_UInt gindex,
FT_Int load_flags )
{
FT_Error error;
PFR_Face face = (PFR_Face) slot->root.face;
PFR_Char gchar = face->phy_font.chars + gindex;
FT_Outline* outline = &slot->root.outline;
FT_ULong gps_offset;
/* check that the glyph index is correct */
FT_ASSERT( gindex < face->phy_font.num_chars );
slot->root.format = ft_glyph_format_outline;
outline->n_points = 0;
outline->n_contours = 0;
gps_offset = face->header.gps_section_offset;
/* load the glyph outline ( FT_LOAD_NO_RECURSE isn't supported ) */
error = pfr_glyph_load( &slot->glyph, face->root.stream,
gps_offset, gchar->gps_offset, gchar->gps_size );
if (!error)
{
FT_BBox cbox;
FT_Outline* outline = &slot->root.outline;
FT_Glyph_Metrics* metrics = &slot->root.metrics;
FT_Pos advance;
FT_Int em_metrics, em_outline;
FT_Bool scaling;
scaling = FT_BOOL( (load_flags & FT_LOAD_NO_SCALE) == 0 );
/* copy outline data */
*outline = slot->glyph.loader->base.outline;
outline->flags &= ~ft_outline_owner;
outline->flags |= ft_outline_reverse_fill;
if ( size && size->root.metrics.y_ppem < 24 )
outline->flags |= ft_outline_high_precision;
/* compute the advance vector */
metrics->horiAdvance = 0;
metrics->vertAdvance = 0;
advance = gchar->advance;
em_metrics = face->phy_font.metrics_resolution;
em_outline = face->phy_font.outline_resolution;
if ( em_metrics != em_outline )
advance = FT_MulDiv( advance, em_outline, em_metrics );
if ( face->phy_font.flags & PFR_PHY_VERTICAL )
metrics->vertAdvance = gchar->advance;
else
metrics->horiAdvance = gchar->advance;
slot->root.linearHoriAdvance = metrics->horiAdvance;
slot->root.linearVertAdvance = metrics->vertAdvance;
/* make-up vertical metrics (?) */
metrics->vertBearingX = 0;
metrics->vertBearingY = 0;
/* scale when needed */
if ( scaling )
{
FT_Int n;
FT_Fixed x_scale = size->root.metrics.x_scale;
FT_Fixed y_scale = size->root.metrics.y_scale;
FT_Vector* vec = outline->points;
/* scale outline points */
for ( n = 0; n < outline->n_points; n++, vec++ )
{
vec->x = FT_MulFix( vec->x, x_scale );
vec->y = FT_MulFix( vec->y, y_scale );
}
/* scale the advance */
metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale );
metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale );
}
/* compute the rest of the metrics */
FT_Outline_Get_CBox( outline, &cbox );
metrics->width = cbox.xMax - cbox.xMin;
metrics->height = cbox.yMax - cbox.yMin;
metrics->horiBearingX = cbox.xMin;
metrics->horiBearingY = cbox.yMax - metrics->height;
}
return error;
}

68
src/pfr/pfrobjs.h Normal file
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@ -0,0 +1,68 @@
#ifndef __PFR_OBJS_H__
#define __PFR_OBJS_H__
#include "pfrtypes.h"
FT_BEGIN_HEADER
typedef struct PFR_FaceRec_* PFR_Face;
typedef struct PFR_SizeRec_* PFR_Size;
typedef struct PFR_SlotRec_* PFR_Slot;
typedef struct PFR_FaceRec_
{
FT_FaceRec root;
PFR_HeaderRec header;
PFR_LogFontRec log_font;
PFR_PhyFontRec phy_font;
} PFR_FaceRec;
typedef struct PFR_SizeRec_
{
FT_SizeRec root;
} PFR_SizeRec;
typedef struct PFR_SlotRec_
{
FT_GlyphSlotRec root;
PFR_GlyphRec glyph;
} PFR_SlotRec;
FT_LOCAL( FT_Error )
pfr_face_init( FT_Stream stream,
PFR_Face face,
FT_Int face_index );
FT_LOCAL( void )
pfr_face_done( PFR_Face face );
FT_LOCAL( FT_Error )
pfr_slot_init( PFR_Slot slot );
FT_LOCAL( void )
pfr_slot_done( PFR_Slot slot );
FT_LOCAL( FT_Error )
pfr_slot_load( PFR_Slot slot,
PFR_Size size,
FT_UInt gindex,
FT_Int load_flags );
FT_END_HEADER
#endif /* __PFR_OBJS_H__ */

289
src/pfr/pfrtypes.h Normal file
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@ -0,0 +1,289 @@
#ifndef __PFR_TYPES_H__
#define __PFR_TYPES_H__
#include <ft2build.h>
#include FT_INTERNAL_OBJECTS_H
FT_BEGIN_HEADER
/************************************************************************/
/* the PFR Header structure */
typedef struct PFR_HeaderRec_
{
FT_UInt32 signature;
FT_UInt version;
FT_UInt signature2;
FT_UInt header_size;
FT_UInt log_dir_size;
FT_UInt log_dir_offset;
FT_UInt log_font_max_size;
FT_UInt32 log_font_section_size;
FT_UInt32 log_font_section_offset;
FT_UInt32 phy_font_max_size;
FT_UInt32 phy_font_section_size;
FT_UInt32 phy_font_section_offset;
FT_UInt gps_max_size;
FT_UInt32 gps_section_size;
FT_UInt32 gps_section_offset;
FT_UInt max_blue_values;
FT_UInt max_x_orus;
FT_UInt max_y_orus;
FT_UInt phy_font_max_size_high;
FT_UInt color_flags;
FT_UInt32 bct_max_size;
FT_UInt32 bct_set_max_size;
FT_UInt32 phy_bct_set_max_size;
FT_UInt num_phy_fonts;
FT_UInt max_vert_stem_snap;
FT_UInt max_horz_stem_snap;
FT_UInt max_chars;
} PFR_HeaderRec, *PFR_Header;
/* used in 'color_flags' field of the PFR_Header */
typedef enum PFR_HeaderFlags_
{
PFR_FLAG_BLACK_PIXEL = 1,
PFR_FLAG_INVERT_BITMAP = 2
} PFR_HeaderFlags;
/************************************************************************/
typedef struct PFR_LogFontRec_
{
FT_UInt32 size;
FT_UInt32 offset;
FT_Int32 matrix[4];
FT_UInt stroke_flags;
FT_Int stroke_thickness;
FT_Int bold_thickness;
FT_Int32 miter_limit;
FT_UInt32 phys_size;
FT_UInt32 phys_offset;
} PFR_LogFontRec, *PFR_LogFont;
typedef enum PFR_LogFlags_
{
PFR_LOG_EXTRA_ITEMS = 0x40,
PFR_LOG_2BYTE_BOLD = 0x20,
PFR_LOG_BOLD = 0x10,
PFR_LOG_2BYTE_STROKE = 8,
PFR_LOG_STROKE = 4,
PFR_LINE_JOIN_MASK = 3
} PFR_LogFlags;
typedef enum PFR_LineJoinFlags_
{
PFR_LINE_JOIN_MITER = 0,
PFR_LINE_JOIN_ROUND = 1,
PFR_LINE_JOIN_BEVEL = 2
} PFR_LineJoinFlags;
/************************************************************************/
typedef enum PFR_BitmapFlags_
{
PFR_BITMAP_3BYTE_OFFSET = 4,
PFR_BITMAP_2BYTE_SIZE = 2,
PFR_BITMAP_2BYTE_CHARCODE = 1
} PFR_BitmapFlags;
typedef struct PFR_BitmapCharRec_
{
FT_UInt char_code;
FT_UInt gps_size;
FT_UInt32 gps_offset;
} PFR_BitmapCharRec, *PFR_BitmapChar;
typedef enum PFR_StrikeFlags_
{
PFR_STRIKE_2BYTE_COUNT = 0x10,
PFR_STRIKE_3BYTE_OFFSET = 0x08,
PFR_STRIKE_3BYTE_SIZE = 0x04,
PFR_STRIKE_2BYTE_YPPM = 0x02,
PFR_STRIKE_2BYTE_XPPM = 0x01
} PFR_StrikeFlags;
typedef struct PFR_StrikeRec_
{
FT_UInt x_ppm;
FT_UInt y_ppm;
FT_UInt flags;
FT_UInt32 gps_size;
FT_UInt32 gps_offset;
FT_UInt32 bct_size;
FT_UInt32 bct_offset;
/* optional */
FT_UInt num_bitmaps;
PFR_BitmapChar bitmaps;
} PFR_StrikeRec, *PFR_Strike;
/************************************************************************/
typedef struct PFR_CharRec_
{
FT_UInt char_code;
FT_Int advance;
FT_UInt gps_size;
FT_UInt32 gps_offset;
} PFR_CharRec, *PFR_Char;
/************************************************************************/
typedef struct PFR_DimensionRec_
{
FT_UInt standard;
FT_UInt num_stem_snaps;
FT_Int* stem_snaps;
} PFR_DimensionRec, *PFR_Dimension;
/************************************************************************/
typedef struct PFR_PhyFontRec_
{
FT_Memory memory;
FT_UInt32 offset;
FT_UInt font_ref_number;
FT_UInt outline_resolution;
FT_UInt metrics_resolution;
FT_BBox bbox;
FT_UInt flags;
FT_UInt standard_advance;
PFR_DimensionRec horizontal;
PFR_DimensionRec vertical;
FT_String* font_id;
FT_UInt num_strikes;
FT_UInt max_strikes;
PFR_StrikeRec* strikes;
FT_UInt num_blue_values;
FT_Int *blue_values;
FT_UInt blue_fuzz;
FT_UInt blue_scale;
FT_UInt num_chars;
FT_UInt32 chars_offset;
PFR_Char chars;
} PFR_PhyFontRec, *PFR_PhyFont;
typedef enum PFR_PhyFlags_
{
PFR_PHY_EXTRA_ITEMS = 0x80,
PFR_PHY_3BYTE_GPS_OFFSET = 0x20,
PFR_PHY_2BYTE_GPS_SIZE = 0x10,
PFR_PHY_ASCII_CODE = 0x08,
PFR_PHY_PROPORTIONAL = 0x04,
PFR_PHY_2BYTE_CHARCODE = 0x02,
PFR_PHY_VERTICAL = 0x01
} PFR_PhyFlags;
/************************************************************************/
typedef enum PFR_GlyphFlags_
{
PFR_GLYPH_IS_COMPOUND = 0x80,
PFR_GLYPH_EXTRA_ITEMS = 0x08,
PFR_GLYPH_1BYTE_XYCOUNT = 0x04,
PFR_GLYPH_XCOUNT = 0x02,
PFR_GLYPH_YCOUNT = 0x01
} PFR_GlyphFlags;
/* controlled coordinate */
typedef struct PFR_CoordRec_
{
FT_UInt org;
FT_UInt cur;
} PFR_CoordRec, *PFR_Coord;
typedef struct PFR_SubGlyphRec_
{
FT_Fixed x_scale;
FT_Fixed y_scale;
FT_Int x_delta;
FT_Int y_delta;
FT_UInt32 gps_offset;
FT_UInt gps_size;
} PFR_SubGlyphRec, *PFR_SubGlyph;
typedef enum PFR_SubgGlyphFlags_
{
PFR_SUBGLYPH_3BYTE_OFFSET = 0x80,
PFR_SUBGLYPH_2BYTE_SIZE = 0x40,
PFR_SUBGLYPH_YSCALE = 0x20,
PFR_SUBGLYPH_XSCALE = 0x10
} PFR_SubGlyphFlags;
typedef struct PFR_GlyphRec_
{
FT_Byte format;
FT_UInt num_x_control;
FT_UInt num_y_control;
FT_UInt max_xy_control;
FT_Pos* x_control;
FT_Pos* y_control;
FT_UInt num_subs;
FT_UInt max_subs;
PFR_SubGlyphRec* subs;
FT_GlyphLoader loader;
FT_Bool path_begun;
} PFR_GlyphRec, *PFR_Glyph;
FT_END_HEADER
#endif /* __PFR_TYPES_H__ */

70
src/pfr/rules.mk Normal file
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@ -0,0 +1,70 @@
#
# FreeType 2 PFR driver configuration rules
#
# Copyright 1996-2002 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.
# Pfr driver directory
#
PFR_DIR := $(SRC_)pfr
PFR_DIR_ := $(PFR_DIR)$(SEP)
# compilation flags for the driver
#
PFR_COMPILE := $(FT_COMPILE) $I$(PFR_DIR)
# Pfr driver sources (i.e., C files)
#
PFR_DRV_SRC := $(PFR_DIR_)pfrload.c \
$(PFR_DIR_)pfrgload.c \
$(PFR_DIR_)pfrcmap.c \
$(PFR_DIR_)pfrdrivr.c \
$(PFR_DIR_)pfrobjs.c
# Pfr driver headers
#
PFR_DRV_H := $(PFR_DRV_SRC:%.c=%.h)
# Pfr driver object(s)
#
# PFR_DRV_OBJ_M is used during `multi' builds
# PFR_DRV_OBJ_S is used during `single' builds
#
PFR_DRV_OBJ_M := $(PFR_DRV_SRC:$(PFR_DIR_)%.c=$(OBJ_)%.$O)
PFR_DRV_OBJ_S := $(OBJ_)pfr.$O
# Pfr driver source file for single build
#
PFR_DRV_SRC_S := $(PFR_DIR_)pfr.c
# Pfr driver - single object
#
$(PFR_DRV_OBJ_S): $(PFR_DRV_SRC_S) $(PFR_DRV_SRC) $(FREETYPE_H) $(PFR_DRV_H)
$(PFR_COMPILE) $T$@ $(PFR_DRV_SRC_S)
# Pfr driver - multiple objects
#
$(OBJ_)%.$O: $(PFR_DIR_)%.c $(FREETYPE_H) $(PFR_DRV_H)
$(PFR_COMPILE) $T$@ $<
# update main driver object lists
#
DRV_OBJS_S += $(PFR_DRV_OBJ_S)
DRV_OBJS_M += $(PFR_DRV_OBJ_M)
# EOF

2
src/type1/t1gload.c
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@ -141,7 +141,7 @@
FT_LOCAL_DEF( FT_Error )
T1_Load_Glyph( T1_GlyphSlot glyph,
T1_Size size,
FT_Int glyph_index,
FT_UInt glyph_index,
FT_Int load_flags )
{
FT_Error error;

2
src/type1/t1gload.h
View File

@ -34,7 +34,7 @@ FT_BEGIN_HEADER
FT_LOCAL( FT_Error )
T1_Load_Glyph( T1_GlyphSlot glyph,
T1_Size size,
FT_Int glyph_index,
FT_UInt glyph_index,
FT_Int load_flags );