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-rw-r--r--modules/freetype2/src/type42/module.mk23
-rw-r--r--modules/freetype2/src/type42/rules.mk73
-rw-r--r--modules/freetype2/src/type42/t42drivr.c237
-rw-r--r--modules/freetype2/src/type42/t42drivr.h36
-rw-r--r--modules/freetype2/src/type42/t42error.h41
-rw-r--r--modules/freetype2/src/type42/t42objs.c698
-rw-r--r--modules/freetype2/src/type42/t42objs.h123
-rw-r--r--modules/freetype2/src/type42/t42parse.c1347
-rw-r--r--modules/freetype2/src/type42/t42parse.h91
-rw-r--r--modules/freetype2/src/type42/t42types.h56
-rw-r--r--modules/freetype2/src/type42/type42.c26
11 files changed, 2751 insertions, 0 deletions
diff --git a/modules/freetype2/src/type42/module.mk b/modules/freetype2/src/type42/module.mk
new file mode 100644
index 0000000000..d98b123199
--- /dev/null
+++ b/modules/freetype2/src/type42/module.mk
@@ -0,0 +1,23 @@
+#
+# FreeType 2 Type42 module definition
+#
+
+
+# Copyright (C) 2002-2023 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.
+
+
+FTMODULE_H_COMMANDS += TYPE42_DRIVER
+
+define TYPE42_DRIVER
+$(OPEN_DRIVER) FT_Driver_ClassRec, t42_driver_class $(CLOSE_DRIVER)
+$(ECHO_DRIVER)type42 $(ECHO_DRIVER_DESC)Type 42 font files with no known extension$(ECHO_DRIVER_DONE)
+endef
+
+# EOF
diff --git a/modules/freetype2/src/type42/rules.mk b/modules/freetype2/src/type42/rules.mk
new file mode 100644
index 0000000000..41cb358d3e
--- /dev/null
+++ b/modules/freetype2/src/type42/rules.mk
@@ -0,0 +1,73 @@
+#
+# FreeType 2 Type42 driver configuration rules
+#
+
+
+# Copyright (C) 2002-2023 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.
+
+
+# Type42 driver directory
+#
+T42_DIR := $(SRC_DIR)/type42
+
+
+# compilation flags for the driver
+#
+T42_COMPILE := $(CC) $(ANSIFLAGS) \
+ $I$(subst /,$(COMPILER_SEP),$(T42_DIR)) \
+ $(INCLUDE_FLAGS) \
+ $(FT_CFLAGS)
+
+
+# Type42 driver source
+#
+T42_DRV_SRC := $(T42_DIR)/t42objs.c \
+ $(T42_DIR)/t42parse.c \
+ $(T42_DIR)/t42drivr.c
+
+# Type42 driver headers
+#
+T42_DRV_H := $(T42_DRV_SRC:%.c=%.h) \
+ $(T42_DIR)/t42error.h \
+ $(T42_DIR)/t42types.h
+
+
+# Type42 driver object(s)
+#
+# T42_DRV_OBJ_M is used during `multi' builds
+# T42_DRV_OBJ_S is used during `single' builds
+#
+T42_DRV_OBJ_M := $(T42_DRV_SRC:$(T42_DIR)/%.c=$(OBJ_DIR)/%.$O)
+T42_DRV_OBJ_S := $(OBJ_DIR)/type42.$O
+
+# Type42 driver source file for single build
+#
+T42_DRV_SRC_S := $(T42_DIR)/type42.c
+
+
+# Type42 driver - single object
+#
+$(T42_DRV_OBJ_S): $(T42_DRV_SRC_S) $(T42_DRV_SRC) $(FREETYPE_H) $(T42_DRV_H)
+ $(T42_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(T42_DRV_SRC_S))
+
+
+# Type42 driver - multiple objects
+#
+$(OBJ_DIR)/%.$O: $(T42_DIR)/%.c $(FREETYPE_H) $(T42_DRV_H)
+ $(T42_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
+
+
+# update main driver object lists
+#
+DRV_OBJS_S += $(T42_DRV_OBJ_S)
+DRV_OBJS_M += $(T42_DRV_OBJ_M)
+
+
+# EOF
diff --git a/modules/freetype2/src/type42/t42drivr.c b/modules/freetype2/src/type42/t42drivr.c
new file mode 100644
index 0000000000..ce1528e5db
--- /dev/null
+++ b/modules/freetype2/src/type42/t42drivr.c
@@ -0,0 +1,237 @@
+/****************************************************************************
+ *
+ * t42drivr.c
+ *
+ * High-level Type 42 driver interface (body).
+ *
+ * Copyright (C) 2002-2023 by
+ * Roberto Alameda.
+ *
+ * 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.
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * This driver implements Type42 fonts as described in the
+ * Technical Note #5012 from Adobe, with these limitations:
+ *
+ * 1) CID Fonts are not currently supported.
+ * 2) Incremental fonts making use of the GlyphDirectory keyword
+ * will be loaded, but the rendering will be using the TrueType
+ * tables.
+ * 3) As for Type1 fonts, CDevProc is not supported.
+ * 4) The Metrics dictionary is not supported.
+ * 5) AFM metrics are not supported.
+ *
+ * In other words, this driver supports Type42 fonts derived from
+ * TrueType fonts in a non-CID manner, as done by usual conversion
+ * programs.
+ *
+ */
+
+
+#include "t42drivr.h"
+#include "t42objs.h"
+#include "t42error.h"
+#include <freetype/internal/ftdebug.h>
+
+#include <freetype/internal/services/svfntfmt.h>
+#include <freetype/internal/services/svgldict.h>
+#include <freetype/internal/services/svpostnm.h>
+#include <freetype/internal/services/svpsinfo.h>
+
+#undef FT_COMPONENT
+#define FT_COMPONENT t42
+
+
+ /*
+ *
+ * GLYPH DICT SERVICE
+ *
+ */
+
+ static FT_Error
+ t42_get_glyph_name( T42_Face face,
+ FT_UInt glyph_index,
+ FT_Pointer buffer,
+ FT_UInt buffer_max )
+ {
+ FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max );
+
+ return FT_Err_Ok;
+ }
+
+
+ static FT_UInt
+ t42_get_name_index( T42_Face face,
+ const FT_String* glyph_name )
+ {
+ FT_Int i;
+
+
+ for ( i = 0; i < face->type1.num_glyphs; i++ )
+ {
+ FT_String* gname = face->type1.glyph_names[i];
+
+
+ if ( glyph_name[0] == gname[0] && !ft_strcmp( glyph_name, gname ) )
+ return (FT_UInt)ft_strtol( (const char *)face->type1.charstrings[i],
+ NULL, 10 );
+ }
+
+ return 0;
+ }
+
+
+ static const FT_Service_GlyphDictRec t42_service_glyph_dict =
+ {
+ (FT_GlyphDict_GetNameFunc) t42_get_glyph_name, /* get_name */
+ (FT_GlyphDict_NameIndexFunc)t42_get_name_index /* name_index */
+ };
+
+
+ /*
+ *
+ * POSTSCRIPT NAME SERVICE
+ *
+ */
+
+ static const char*
+ t42_get_ps_font_name( T42_Face face )
+ {
+ return (const char*)face->type1.font_name;
+ }
+
+
+ static const FT_Service_PsFontNameRec t42_service_ps_font_name =
+ {
+ (FT_PsName_GetFunc)t42_get_ps_font_name /* get_ps_font_name */
+ };
+
+
+ /*
+ *
+ * POSTSCRIPT INFO SERVICE
+ *
+ */
+
+ static FT_Error
+ t42_ps_get_font_info( FT_Face face,
+ PS_FontInfoRec* afont_info )
+ {
+ *afont_info = ((T42_Face)face)->type1.font_info;
+
+ return FT_Err_Ok;
+ }
+
+
+ static FT_Error
+ t42_ps_get_font_extra( FT_Face face,
+ PS_FontExtraRec* afont_extra )
+ {
+ *afont_extra = ((T42_Face)face)->type1.font_extra;
+
+ return FT_Err_Ok;
+ }
+
+
+ static FT_Int
+ t42_ps_has_glyph_names( FT_Face face )
+ {
+ FT_UNUSED( face );
+
+ return 1;
+ }
+
+
+ static const FT_Service_PsInfoRec t42_service_ps_info =
+ {
+ (PS_GetFontInfoFunc) t42_ps_get_font_info, /* ps_get_font_info */
+ (PS_GetFontExtraFunc) t42_ps_get_font_extra, /* ps_get_font_extra */
+ (PS_HasGlyphNamesFunc) t42_ps_has_glyph_names, /* ps_has_glyph_names */
+ /* Type42 fonts don't have a Private dict */
+ (PS_GetFontPrivateFunc)NULL, /* ps_get_font_private */
+ /* not implemented */
+ (PS_GetFontValueFunc) NULL /* ps_get_font_value */
+ };
+
+
+ /*
+ *
+ * SERVICE LIST
+ *
+ */
+
+ static const FT_ServiceDescRec t42_services[] =
+ {
+ { FT_SERVICE_ID_GLYPH_DICT, &t42_service_glyph_dict },
+ { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t42_service_ps_font_name },
+ { FT_SERVICE_ID_POSTSCRIPT_INFO, &t42_service_ps_info },
+ { FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_TYPE_42 },
+ { NULL, NULL }
+ };
+
+
+ FT_CALLBACK_DEF( FT_Module_Interface )
+ T42_Get_Interface( FT_Module module,
+ const FT_String* t42_interface )
+ {
+ FT_UNUSED( module );
+
+ return ft_service_list_lookup( t42_services, t42_interface );
+ }
+
+
+ const FT_Driver_ClassRec t42_driver_class =
+ {
+ {
+ FT_MODULE_FONT_DRIVER |
+ FT_MODULE_DRIVER_SCALABLE |
+#ifdef TT_USE_BYTECODE_INTERPRETER
+ FT_MODULE_DRIVER_HAS_HINTER,
+#else
+ 0,
+#endif
+
+ sizeof ( T42_DriverRec ),
+
+ "type42",
+ 0x10000L,
+ 0x20000L,
+
+ NULL, /* module-specific interface */
+
+ T42_Driver_Init, /* FT_Module_Constructor module_init */
+ T42_Driver_Done, /* FT_Module_Destructor module_done */
+ T42_Get_Interface, /* FT_Module_Requester get_interface */
+ },
+
+ sizeof ( T42_FaceRec ),
+ sizeof ( T42_SizeRec ),
+ sizeof ( T42_GlyphSlotRec ),
+
+ T42_Face_Init, /* FT_Face_InitFunc init_face */
+ T42_Face_Done, /* FT_Face_DoneFunc done_face */
+ T42_Size_Init, /* FT_Size_InitFunc init_size */
+ T42_Size_Done, /* FT_Size_DoneFunc done_size */
+ T42_GlyphSlot_Init, /* FT_Slot_InitFunc init_slot */
+ T42_GlyphSlot_Done, /* FT_Slot_DoneFunc done_slot */
+
+ T42_GlyphSlot_Load, /* FT_Slot_LoadFunc load_glyph */
+
+ NULL, /* FT_Face_GetKerningFunc get_kerning */
+ NULL, /* FT_Face_AttachFunc attach_file */
+ NULL, /* FT_Face_GetAdvancesFunc get_advances */
+
+ T42_Size_Request, /* FT_Size_RequestFunc request_size */
+ T42_Size_Select /* FT_Size_SelectFunc select_size */
+ };
+
+
+/* END */
diff --git a/modules/freetype2/src/type42/t42drivr.h b/modules/freetype2/src/type42/t42drivr.h
new file mode 100644
index 0000000000..ec7da18ccf
--- /dev/null
+++ b/modules/freetype2/src/type42/t42drivr.h
@@ -0,0 +1,36 @@
+/****************************************************************************
+ *
+ * t42drivr.h
+ *
+ * High-level Type 42 driver interface (specification).
+ *
+ * Copyright (C) 2002-2023 by
+ * Roberto Alameda.
+ *
+ * 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 T42DRIVR_H_
+#define T42DRIVR_H_
+
+
+#include <freetype/internal/ftdrv.h>
+
+
+FT_BEGIN_HEADER
+
+ FT_EXPORT_VAR( const FT_Driver_ClassRec ) t42_driver_class;
+
+FT_END_HEADER
+
+
+#endif /* T42DRIVR_H_ */
+
+
+/* END */
diff --git a/modules/freetype2/src/type42/t42error.h b/modules/freetype2/src/type42/t42error.h
new file mode 100644
index 0000000000..dcea9c4f66
--- /dev/null
+++ b/modules/freetype2/src/type42/t42error.h
@@ -0,0 +1,41 @@
+/****************************************************************************
+ *
+ * t42error.h
+ *
+ * Type 42 error codes (specification only).
+ *
+ * Copyright (C) 2002-2023 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.
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * This file is used to define the Type 42 error enumeration constants.
+ *
+ */
+
+#ifndef T42ERROR_H_
+#define T42ERROR_H_
+
+#include <freetype/ftmoderr.h>
+
+#undef FTERRORS_H_
+
+#undef FT_ERR_PREFIX
+#define FT_ERR_PREFIX T42_Err_
+#define FT_ERR_BASE FT_Mod_Err_Type42
+
+#include <freetype/fterrors.h>
+
+#endif /* T42ERROR_H_ */
+
+
+/* END */
diff --git a/modules/freetype2/src/type42/t42objs.c b/modules/freetype2/src/type42/t42objs.c
new file mode 100644
index 0000000000..bf4028e751
--- /dev/null
+++ b/modules/freetype2/src/type42/t42objs.c
@@ -0,0 +1,698 @@
+/****************************************************************************
+ *
+ * t42objs.c
+ *
+ * Type 42 objects manager (body).
+ *
+ * Copyright (C) 2002-2023 by
+ * Roberto Alameda.
+ *
+ * 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.
+ *
+ */
+
+
+#include "t42objs.h"
+#include "t42parse.h"
+#include "t42error.h"
+#include <freetype/internal/ftdebug.h>
+#include <freetype/ftlist.h>
+#include <freetype/ttnameid.h>
+
+
+#undef FT_COMPONENT
+#define FT_COMPONENT t42
+
+
+ static FT_Error
+ T42_Open_Face( T42_Face face )
+ {
+ T42_LoaderRec loader;
+ T42_Parser parser;
+ T1_Font type1 = &face->type1;
+ FT_Memory memory = face->root.memory;
+ FT_Error error;
+
+ PSAux_Service psaux = (PSAux_Service)face->psaux;
+
+
+ t42_loader_init( &loader, face );
+
+ parser = &loader.parser;
+
+ face->ttf_data = NULL;
+ face->ttf_size = 0;
+
+ error = t42_parser_init( parser,
+ face->root.stream,
+ memory,
+ psaux);
+ if ( error )
+ goto Exit;
+
+ error = t42_parse_dict( face, &loader,
+ parser->base_dict, parser->base_len );
+ if ( error )
+ goto Exit;
+
+ if ( type1->font_type != 42 )
+ {
+ FT_ERROR(( "T42_Open_Face: cannot handle FontType %d\n",
+ type1->font_type ));
+ error = FT_THROW( Unknown_File_Format );
+ goto Exit;
+ }
+
+ /* now, propagate the charstrings and glyphnames tables */
+ /* to the Type1 data */
+ type1->num_glyphs = loader.num_glyphs;
+
+ if ( !loader.charstrings.init )
+ {
+ FT_ERROR(( "T42_Open_Face: no charstrings array in face\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ }
+
+ loader.charstrings.init = 0;
+ type1->charstrings_block = loader.charstrings.block;
+ type1->charstrings = loader.charstrings.elements;
+ type1->charstrings_len = loader.charstrings.lengths;
+
+ /* we copy the glyph names `block' and `elements' fields; */
+ /* the `lengths' field must be released later */
+ type1->glyph_names_block = loader.glyph_names.block;
+ type1->glyph_names = (FT_String**)loader.glyph_names.elements;
+ loader.glyph_names.block = NULL;
+ loader.glyph_names.elements = NULL;
+
+ /* we must now build type1.encoding when we have a custom array */
+ if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY )
+ {
+ FT_Int charcode, idx, min_char, max_char;
+
+
+ /* OK, we do the following: for each element in the encoding */
+ /* table, look up the index of the glyph having the same name */
+ /* as defined in the CharStrings array. */
+ /* The index is then stored in type1.encoding.char_index, and */
+ /* the name in type1.encoding.char_name */
+
+ min_char = 0;
+ max_char = 0;
+
+ charcode = 0;
+ for ( ; charcode < loader.encoding_table.max_elems; charcode++ )
+ {
+ const FT_String* char_name =
+ (const FT_String*)loader.encoding_table.elements[charcode];
+
+
+ type1->encoding.char_index[charcode] = 0;
+ type1->encoding.char_name [charcode] = ".notdef";
+
+ if ( char_name )
+ for ( idx = 0; idx < type1->num_glyphs; idx++ )
+ {
+ const FT_String* glyph_name = type1->glyph_names[idx];
+
+
+ if ( ft_strcmp( char_name, glyph_name ) == 0 )
+ {
+ type1->encoding.char_index[charcode] = (FT_UShort)idx;
+ type1->encoding.char_name [charcode] = glyph_name;
+
+ /* Change min/max encoded char only if glyph name is */
+ /* not /.notdef */
+ if ( ft_strcmp( ".notdef", glyph_name ) != 0 )
+ {
+ if ( charcode < min_char )
+ min_char = charcode;
+ if ( charcode >= max_char )
+ max_char = charcode + 1;
+ }
+ break;
+ }
+ }
+ }
+
+ type1->encoding.code_first = min_char;
+ type1->encoding.code_last = max_char;
+ type1->encoding.num_chars = loader.num_chars;
+ }
+
+ Exit:
+ t42_loader_done( &loader );
+ if ( error )
+ {
+ FT_FREE( face->ttf_data );
+ face->ttf_size = 0;
+ }
+ return error;
+ }
+
+
+ /***************** Driver Functions *************/
+
+
+ FT_LOCAL_DEF( FT_Error )
+ T42_Face_Init( FT_Stream stream,
+ FT_Face t42face, /* T42_Face */
+ FT_Int face_index,
+ FT_Int num_params,
+ FT_Parameter* params )
+ {
+ T42_Face face = (T42_Face)t42face;
+ FT_Error error;
+ FT_Service_PsCMaps psnames;
+ PSAux_Service psaux;
+ FT_Face root = (FT_Face)&face->root;
+ T1_Font type1 = &face->type1;
+ PS_FontInfo info = &type1->font_info;
+
+ FT_UNUSED( num_params );
+ FT_UNUSED( params );
+ FT_UNUSED( stream );
+
+
+ face->ttf_face = NULL;
+ face->root.num_faces = 1;
+
+ FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
+ face->psnames = psnames;
+
+ face->psaux = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ),
+ "psaux" );
+ psaux = (PSAux_Service)face->psaux;
+ if ( !psaux )
+ {
+ FT_ERROR(( "T42_Face_Init: cannot access `psaux' module\n" ));
+ error = FT_THROW( Missing_Module );
+ goto Exit;
+ }
+
+ FT_TRACE2(( "Type 42 driver\n" ));
+
+ /* open the tokenizer, this will also check the font format */
+ error = T42_Open_Face( face );
+ if ( error )
+ goto Exit;
+
+ /* if we just wanted to check the format, leave successfully now */
+ if ( face_index < 0 )
+ goto Exit;
+
+ /* check the face index */
+ if ( ( face_index & 0xFFFF ) > 0 )
+ {
+ FT_ERROR(( "T42_Face_Init: invalid face index\n" ));
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* Now load the font program into the face object */
+
+ /* Init the face object fields */
+ /* Now set up root face fields */
+
+ root->num_glyphs = type1->num_glyphs;
+ root->num_charmaps = 0;
+ root->face_index = 0;
+
+ root->face_flags |= FT_FACE_FLAG_SCALABLE |
+ FT_FACE_FLAG_HORIZONTAL |
+ FT_FACE_FLAG_GLYPH_NAMES;
+
+ if ( info->is_fixed_pitch )
+ root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
+
+#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
+ root->face_flags |= FT_FACE_FLAG_HINTER;
+#endif
+
+ /* XXX: TODO -- add kerning with .afm support */
+
+ /* get style name -- be careful, some broken fonts only */
+ /* have a `/FontName' dictionary entry! */
+ root->family_name = info->family_name;
+ /* assume "Regular" style if we don't know better */
+ root->style_name = (char *)"Regular";
+ if ( root->family_name )
+ {
+ char* full = info->full_name;
+ char* family = root->family_name;
+
+
+ if ( full )
+ {
+ while ( *full )
+ {
+ if ( *full == *family )
+ {
+ family++;
+ full++;
+ }
+ else
+ {
+ if ( *full == ' ' || *full == '-' )
+ full++;
+ else if ( *family == ' ' || *family == '-' )
+ family++;
+ else
+ {
+ if ( !*family )
+ root->style_name = full;
+ break;
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ /* do we have a `/FontName'? */
+ if ( type1->font_name )
+ root->family_name = type1->font_name;
+ }
+
+ /* no embedded bitmap support */
+ root->num_fixed_sizes = 0;
+ root->available_sizes = NULL;
+
+ /* Load the TTF font embedded in the T42 font */
+ {
+ FT_Open_Args args;
+
+
+ args.flags = FT_OPEN_MEMORY | FT_OPEN_DRIVER;
+ args.driver = FT_Get_Module( FT_FACE_LIBRARY( face ),
+ "truetype" );
+ args.memory_base = face->ttf_data;
+ args.memory_size = face->ttf_size;
+
+ if ( num_params )
+ {
+ args.flags |= FT_OPEN_PARAMS;
+ args.num_params = num_params;
+ args.params = params;
+ }
+
+ error = FT_Open_Face( FT_FACE_LIBRARY( face ),
+ &args, 0, &face->ttf_face );
+ }
+
+ if ( error )
+ goto Exit;
+
+ FT_Done_Size( face->ttf_face->size );
+
+ /* Ignore info in FontInfo dictionary and use the info from the */
+ /* loaded TTF font. The PostScript interpreter also ignores it. */
+ root->bbox = face->ttf_face->bbox;
+ root->units_per_EM = face->ttf_face->units_per_EM;
+
+ root->ascender = face->ttf_face->ascender;
+ root->descender = face->ttf_face->descender;
+ root->height = face->ttf_face->height;
+
+ root->max_advance_width = face->ttf_face->max_advance_width;
+ root->max_advance_height = face->ttf_face->max_advance_height;
+
+ root->underline_position = (FT_Short)info->underline_position;
+ root->underline_thickness = (FT_Short)info->underline_thickness;
+
+ /* compute style flags */
+ root->style_flags = 0;
+ if ( info->italic_angle )
+ root->style_flags |= FT_STYLE_FLAG_ITALIC;
+
+ if ( face->ttf_face->style_flags & FT_STYLE_FLAG_BOLD )
+ root->style_flags |= FT_STYLE_FLAG_BOLD;
+
+ if ( face->ttf_face->face_flags & FT_FACE_FLAG_VERTICAL )
+ root->face_flags |= FT_FACE_FLAG_VERTICAL;
+
+ {
+ if ( psnames )
+ {
+ FT_CharMapRec charmap;
+ T1_CMap_Classes cmap_classes = psaux->t1_cmap_classes;
+ FT_CMap_Class clazz;
+
+
+ charmap.face = root;
+
+ /* first of all, try to synthesize a Unicode charmap */
+ charmap.platform_id = TT_PLATFORM_MICROSOFT;
+ charmap.encoding_id = TT_MS_ID_UNICODE_CS;
+ charmap.encoding = FT_ENCODING_UNICODE;
+
+ error = FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL );
+ if ( error &&
+ FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) &&
+ FT_ERR_NEQ( error, Unimplemented_Feature ) )
+ goto Exit;
+ error = FT_Err_Ok;
+
+ /* now, generate an Adobe Standard encoding when appropriate */
+ charmap.platform_id = TT_PLATFORM_ADOBE;
+ clazz = NULL;
+
+ switch ( type1->encoding_type )
+ {
+ case T1_ENCODING_TYPE_STANDARD:
+ charmap.encoding = FT_ENCODING_ADOBE_STANDARD;
+ charmap.encoding_id = TT_ADOBE_ID_STANDARD;
+ clazz = cmap_classes->standard;
+ break;
+
+ case T1_ENCODING_TYPE_EXPERT:
+ charmap.encoding = FT_ENCODING_ADOBE_EXPERT;
+ charmap.encoding_id = TT_ADOBE_ID_EXPERT;
+ clazz = cmap_classes->expert;
+ break;
+
+ case T1_ENCODING_TYPE_ARRAY:
+ charmap.encoding = FT_ENCODING_ADOBE_CUSTOM;
+ charmap.encoding_id = TT_ADOBE_ID_CUSTOM;
+ clazz = cmap_classes->custom;
+ break;
+
+ case T1_ENCODING_TYPE_ISOLATIN1:
+ charmap.encoding = FT_ENCODING_ADOBE_LATIN_1;
+ charmap.encoding_id = TT_ADOBE_ID_LATIN_1;
+ clazz = cmap_classes->unicode;
+ break;
+
+ default:
+ ;
+ }
+
+ if ( clazz )
+ error = FT_CMap_New( clazz, NULL, &charmap, NULL );
+ }
+ }
+ Exit:
+ return error;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ T42_Face_Done( FT_Face t42face )
+ {
+ T42_Face face = (T42_Face)t42face;
+ T1_Font type1;
+ PS_FontInfo info;
+ FT_Memory memory;
+
+
+ if ( !face )
+ return;
+
+ type1 = &face->type1;
+ info = &type1->font_info;
+ memory = face->root.memory;
+
+ /* delete internal ttf face prior to freeing face->ttf_data */
+ if ( face->ttf_face )
+ FT_Done_Face( face->ttf_face );
+
+ /* release font info strings */
+ FT_FREE( info->version );
+ FT_FREE( info->notice );
+ FT_FREE( info->full_name );
+ FT_FREE( info->family_name );
+ FT_FREE( info->weight );
+
+ /* release top dictionary */
+ FT_FREE( type1->charstrings_len );
+ FT_FREE( type1->charstrings );
+ FT_FREE( type1->glyph_names );
+
+ FT_FREE( type1->charstrings_block );
+ FT_FREE( type1->glyph_names_block );
+
+ FT_FREE( type1->encoding.char_index );
+ FT_FREE( type1->encoding.char_name );
+ FT_FREE( type1->font_name );
+
+ FT_FREE( face->ttf_data );
+
+#if 0
+ /* release afm data if present */
+ if ( face->afm_data )
+ T1_Done_AFM( memory, (T1_AFM*)face->afm_data );
+#endif
+
+ /* release unicode map, if any */
+ FT_FREE( face->unicode_map.maps );
+ face->unicode_map.num_maps = 0;
+
+ face->root.family_name = NULL;
+ face->root.style_name = NULL;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * T42_Driver_Init
+ *
+ * @Description:
+ * Initializes a given Type 42 driver object.
+ *
+ * @Input:
+ * driver ::
+ * A handle to the target driver object.
+ *
+ * @Return:
+ * FreeType error code. 0 means success.
+ */
+ FT_LOCAL_DEF( FT_Error )
+ T42_Driver_Init( FT_Module module ) /* T42_Driver */
+ {
+ T42_Driver driver = (T42_Driver)module;
+ FT_Module ttmodule;
+
+
+ ttmodule = FT_Get_Module( module->library, "truetype" );
+ if ( !ttmodule )
+ {
+ FT_ERROR(( "T42_Driver_Init: cannot access `truetype' module\n" ));
+ return FT_THROW( Missing_Module );
+ }
+
+ driver->ttclazz = (FT_Driver_Class)ttmodule->clazz;
+
+ return FT_Err_Ok;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ T42_Driver_Done( FT_Module module )
+ {
+ FT_UNUSED( module );
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ T42_Size_Init( FT_Size size ) /* T42_Size */
+ {
+ T42_Size t42size = (T42_Size)size;
+ FT_Face face = size->face;
+ T42_Face t42face = (T42_Face)face;
+ FT_Size ttsize;
+ FT_Error error;
+
+
+ error = FT_New_Size( t42face->ttf_face, &ttsize );
+ if ( !error )
+ t42size->ttsize = ttsize;
+
+ FT_Activate_Size( ttsize );
+
+ return error;
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ T42_Size_Request( FT_Size t42size, /* T42_Size */
+ FT_Size_Request req )
+ {
+ T42_Size size = (T42_Size)t42size;
+ T42_Face face = (T42_Face)t42size->face;
+ FT_Error error;
+
+
+ FT_Activate_Size( size->ttsize );
+
+ error = FT_Request_Size( face->ttf_face, req );
+ if ( !error )
+ t42size->metrics = face->ttf_face->size->metrics;
+
+ return error;
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ T42_Size_Select( FT_Size t42size, /* T42_Size */
+ FT_ULong strike_index )
+ {
+ T42_Size size = (T42_Size)t42size;
+ T42_Face face = (T42_Face)t42size->face;
+ FT_Error error;
+
+
+ FT_Activate_Size( size->ttsize );
+
+ error = FT_Select_Size( face->ttf_face, (FT_Int)strike_index );
+ if ( !error )
+ t42size->metrics = face->ttf_face->size->metrics;
+
+ return error;
+
+ }
+
+
+ FT_LOCAL_DEF( void )
+ T42_Size_Done( FT_Size t42size ) /* T42_Size */
+ {
+ T42_Size size = (T42_Size)t42size;
+ FT_Face face = t42size->face;
+ T42_Face t42face = (T42_Face)face;
+ FT_ListNode node;
+
+
+ node = FT_List_Find( &t42face->ttf_face->sizes_list, size->ttsize );
+ if ( node )
+ {
+ FT_Done_Size( size->ttsize );
+ size->ttsize = NULL;
+ }
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ T42_GlyphSlot_Init( FT_GlyphSlot t42slot ) /* T42_GlyphSlot */
+ {
+ T42_GlyphSlot slot = (T42_GlyphSlot)t42slot;
+ FT_Face face = t42slot->face;
+ T42_Face t42face = (T42_Face)face;
+ FT_GlyphSlot ttslot;
+ FT_Memory memory = face->memory;
+ FT_Error error = FT_Err_Ok;
+
+
+ if ( !face->glyph )
+ {
+ /* First glyph slot for this face */
+ slot->ttslot = t42face->ttf_face->glyph;
+ }
+ else
+ {
+ error = FT_New_GlyphSlot( t42face->ttf_face, &ttslot );
+ if ( !error )
+ slot->ttslot = ttslot;
+ }
+
+ /* share the loader so that the autohinter can see it */
+ FT_GlyphLoader_Done( slot->ttslot->internal->loader );
+ FT_FREE( slot->ttslot->internal );
+ slot->ttslot->internal = t42slot->internal;
+
+ return error;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ T42_GlyphSlot_Done( FT_GlyphSlot t42slot ) /* T42_GlyphSlot */
+ {
+ T42_GlyphSlot slot = (T42_GlyphSlot)t42slot;
+
+
+ /* do not destroy the inherited internal structure just yet */
+ slot->ttslot->internal = NULL;
+ FT_Done_GlyphSlot( slot->ttslot );
+ }
+
+
+ static void
+ t42_glyphslot_clear( FT_GlyphSlot slot )
+ {
+ /* free bitmap if needed */
+ ft_glyphslot_free_bitmap( slot );
+
+ /* clear all public fields in the glyph slot */
+ FT_ZERO( &slot->metrics );
+ FT_ZERO( &slot->outline );
+ FT_ZERO( &slot->bitmap );
+
+ slot->bitmap_left = 0;
+ slot->bitmap_top = 0;
+ slot->num_subglyphs = 0;
+ slot->subglyphs = NULL;
+ slot->control_data = NULL;
+ slot->control_len = 0;
+ slot->other = NULL;
+ slot->format = FT_GLYPH_FORMAT_NONE;
+
+ slot->linearHoriAdvance = 0;
+ slot->linearVertAdvance = 0;
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ T42_GlyphSlot_Load( FT_GlyphSlot glyph,
+ FT_Size size,
+ FT_UInt glyph_index,
+ FT_Int32 load_flags )
+ {
+ FT_Error error;
+ T42_GlyphSlot t42slot = (T42_GlyphSlot)glyph;
+ T42_Size t42size = (T42_Size)size;
+ T42_Face t42face = (T42_Face)size->face;
+ FT_Driver_Class ttclazz = ((T42_Driver)glyph->face->driver)->ttclazz;
+
+
+ FT_TRACE1(( "T42_GlyphSlot_Load: glyph index %d\n", glyph_index ));
+
+ /* map T42 glyph index to embedded TTF's glyph index */
+ glyph_index = (FT_UInt)ft_strtol(
+ (const char *)t42face->type1.charstrings[glyph_index],
+ NULL, 10 );
+
+ t42_glyphslot_clear( t42slot->ttslot );
+ error = ttclazz->load_glyph( t42slot->ttslot,
+ t42size->ttsize,
+ glyph_index,
+ load_flags | FT_LOAD_NO_BITMAP );
+
+ if ( !error )
+ {
+ glyph->metrics = t42slot->ttslot->metrics;
+
+ glyph->linearHoriAdvance = t42slot->ttslot->linearHoriAdvance;
+ glyph->linearVertAdvance = t42slot->ttslot->linearVertAdvance;
+
+ glyph->format = t42slot->ttslot->format;
+ glyph->outline = t42slot->ttslot->outline;
+
+ glyph->bitmap = t42slot->ttslot->bitmap;
+ glyph->bitmap_left = t42slot->ttslot->bitmap_left;
+ glyph->bitmap_top = t42slot->ttslot->bitmap_top;
+
+ glyph->num_subglyphs = t42slot->ttslot->num_subglyphs;
+ glyph->subglyphs = t42slot->ttslot->subglyphs;
+
+ glyph->control_data = t42slot->ttslot->control_data;
+ glyph->control_len = t42slot->ttslot->control_len;
+ }
+
+ return error;
+ }
+
+
+/* END */
diff --git a/modules/freetype2/src/type42/t42objs.h b/modules/freetype2/src/type42/t42objs.h
new file mode 100644
index 0000000000..33e6215e10
--- /dev/null
+++ b/modules/freetype2/src/type42/t42objs.h
@@ -0,0 +1,123 @@
+/****************************************************************************
+ *
+ * t42objs.h
+ *
+ * Type 42 objects manager (specification).
+ *
+ * Copyright (C) 2002-2023 by
+ * Roberto Alameda.
+ *
+ * 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 T42OBJS_H_
+#define T42OBJS_H_
+
+#include <freetype/freetype.h>
+#include <freetype/t1tables.h>
+#include <freetype/internal/t1types.h>
+#include "t42types.h"
+#include <freetype/internal/ftobjs.h>
+#include <freetype/internal/ftdrv.h>
+#include <freetype/internal/services/svpscmap.h>
+#include <freetype/internal/pshints.h>
+
+
+FT_BEGIN_HEADER
+
+
+ /* Type42 size */
+ typedef struct T42_SizeRec_
+ {
+ FT_SizeRec root;
+ FT_Size ttsize;
+
+ } T42_SizeRec, *T42_Size;
+
+
+ /* Type42 slot */
+ typedef struct T42_GlyphSlotRec_
+ {
+ FT_GlyphSlotRec root;
+ FT_GlyphSlot ttslot;
+
+ } T42_GlyphSlotRec, *T42_GlyphSlot;
+
+
+ /* Type 42 driver */
+ typedef struct T42_DriverRec_
+ {
+ FT_DriverRec root;
+ FT_Driver_Class ttclazz;
+
+ } T42_DriverRec, *T42_Driver;
+
+
+ /* */
+
+
+ FT_LOCAL( FT_Error )
+ T42_Face_Init( FT_Stream stream,
+ FT_Face face,
+ FT_Int face_index,
+ FT_Int num_params,
+ FT_Parameter* params );
+
+
+ FT_LOCAL( void )
+ T42_Face_Done( FT_Face face );
+
+
+ FT_LOCAL( FT_Error )
+ T42_Size_Init( FT_Size size );
+
+
+ FT_LOCAL( FT_Error )
+ T42_Size_Request( FT_Size size,
+ FT_Size_Request req );
+
+
+ FT_LOCAL( FT_Error )
+ T42_Size_Select( FT_Size size,
+ FT_ULong strike_index );
+
+
+ FT_LOCAL( void )
+ T42_Size_Done( FT_Size size );
+
+
+ FT_LOCAL( FT_Error )
+ T42_GlyphSlot_Init( FT_GlyphSlot slot );
+
+
+ FT_LOCAL( FT_Error )
+ T42_GlyphSlot_Load( FT_GlyphSlot glyph,
+ FT_Size size,
+ FT_UInt glyph_index,
+ FT_Int32 load_flags );
+
+ FT_LOCAL( void )
+ T42_GlyphSlot_Done( FT_GlyphSlot slot );
+
+
+ FT_LOCAL( FT_Error )
+ T42_Driver_Init( FT_Module module );
+
+ FT_LOCAL( void )
+ T42_Driver_Done( FT_Module module );
+
+ /* */
+
+FT_END_HEADER
+
+
+#endif /* T42OBJS_H_ */
+
+
+/* END */
diff --git a/modules/freetype2/src/type42/t42parse.c b/modules/freetype2/src/type42/t42parse.c
new file mode 100644
index 0000000000..6d765c8c10
--- /dev/null
+++ b/modules/freetype2/src/type42/t42parse.c
@@ -0,0 +1,1347 @@
+/****************************************************************************
+ *
+ * t42parse.c
+ *
+ * Type 42 font parser (body).
+ *
+ * Copyright (C) 2002-2023 by
+ * Roberto Alameda.
+ *
+ * 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.
+ *
+ */
+
+
+#include "t42parse.h"
+#include "t42error.h"
+#include <freetype/internal/ftdebug.h>
+#include <freetype/internal/ftstream.h>
+#include <freetype/internal/psaux.h>
+
+
+ /**************************************************************************
+ *
+ * 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 t42
+
+
+ static void
+ t42_parse_font_matrix( T42_Face face,
+ T42_Loader loader );
+ static void
+ t42_parse_encoding( T42_Face face,
+ T42_Loader loader );
+
+ static void
+ t42_parse_charstrings( T42_Face face,
+ T42_Loader loader );
+
+ static void
+ t42_parse_sfnts( T42_Face face,
+ T42_Loader loader );
+
+
+ /* as Type42 fonts have no Private dict, */
+ /* we set the last argument of T1_FIELD_XXX to 0 */
+ static const
+ T1_FieldRec t42_keywords[] =
+ {
+
+#undef FT_STRUCTURE
+#define FT_STRUCTURE T1_FontInfo
+#undef T1CODE
+#define T1CODE T1_FIELD_LOCATION_FONT_INFO
+
+ T1_FIELD_STRING( "version", version, 0 )
+ T1_FIELD_STRING( "Notice", notice, 0 )
+ T1_FIELD_STRING( "FullName", full_name, 0 )
+ T1_FIELD_STRING( "FamilyName", family_name, 0 )
+ T1_FIELD_STRING( "Weight", weight, 0 )
+ T1_FIELD_NUM ( "ItalicAngle", italic_angle, 0 )
+ T1_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch, 0 )
+ T1_FIELD_NUM ( "UnderlinePosition", underline_position, 0 )
+ T1_FIELD_NUM ( "UnderlineThickness", underline_thickness, 0 )
+
+#undef FT_STRUCTURE
+#define FT_STRUCTURE PS_FontExtraRec
+#undef T1CODE
+#define T1CODE T1_FIELD_LOCATION_FONT_EXTRA
+
+ T1_FIELD_NUM ( "FSType", fs_type, 0 )
+
+#undef FT_STRUCTURE
+#define FT_STRUCTURE T1_FontRec
+#undef T1CODE
+#define T1CODE T1_FIELD_LOCATION_FONT_DICT
+
+ T1_FIELD_KEY ( "FontName", font_name, 0 )
+ T1_FIELD_NUM ( "PaintType", paint_type, 0 )
+ T1_FIELD_NUM ( "FontType", font_type, 0 )
+ T1_FIELD_FIXED( "StrokeWidth", stroke_width, 0 )
+
+#undef FT_STRUCTURE
+#define FT_STRUCTURE FT_BBox
+#undef T1CODE
+#define T1CODE T1_FIELD_LOCATION_BBOX
+
+ T1_FIELD_BBOX( "FontBBox", xMin, 0 )
+
+ T1_FIELD_CALLBACK( "FontMatrix", t42_parse_font_matrix, 0 )
+ T1_FIELD_CALLBACK( "Encoding", t42_parse_encoding, 0 )
+ T1_FIELD_CALLBACK( "CharStrings", t42_parse_charstrings, 0 )
+ T1_FIELD_CALLBACK( "sfnts", t42_parse_sfnts, 0 )
+
+ { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 }
+ };
+
+
+#define T1_Add_Table( p, i, o, l ) (p)->funcs.add( (p), i, o, l )
+#define T1_Release_Table( p ) \
+ do \
+ { \
+ if ( (p)->funcs.release ) \
+ (p)->funcs.release( p ); \
+ } while ( 0 )
+
+#define T1_Skip_Spaces( p ) (p)->root.funcs.skip_spaces( &(p)->root )
+#define T1_Skip_PS_Token( p ) (p)->root.funcs.skip_PS_token( &(p)->root )
+
+#define T1_ToInt( p ) \
+ (p)->root.funcs.to_int( &(p)->root )
+#define T1_ToBytes( p, b, m, n, d ) \
+ (p)->root.funcs.to_bytes( &(p)->root, b, m, n, d )
+
+#define T1_ToFixedArray( p, m, f, t ) \
+ (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t )
+#define T1_ToToken( p, t ) \
+ (p)->root.funcs.to_token( &(p)->root, t )
+
+#define T1_Load_Field( p, f, o, m, pf ) \
+ (p)->root.funcs.load_field( &(p)->root, f, o, m, pf )
+#define T1_Load_Field_Table( p, f, o, m, pf ) \
+ (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf )
+
+
+ /********************* Parsing Functions ******************/
+
+ FT_LOCAL_DEF( FT_Error )
+ t42_parser_init( T42_Parser parser,
+ FT_Stream stream,
+ FT_Memory memory,
+ PSAux_Service psaux )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_Long size;
+
+
+ psaux->ps_parser_funcs->init( &parser->root, NULL, NULL, memory );
+
+ parser->stream = stream;
+ parser->base_len = 0;
+ parser->base_dict = NULL;
+ parser->in_memory = 0;
+
+ /********************************************************************
+ *
+ * Here a short summary of what is going on:
+ *
+ * When creating a new Type 42 parser, we try to locate and load
+ * the base dictionary, loading the whole font into memory.
+ *
+ * When `loading' the base dictionary, we only set up pointers
+ * in the case of a memory-based stream. Otherwise, we allocate
+ * and load the base dictionary in it.
+ *
+ * parser->in_memory is set if we have a memory stream.
+ */
+
+ if ( FT_STREAM_SEEK( 0L ) ||
+ FT_FRAME_ENTER( 17 ) )
+ goto Exit;
+
+ if ( ft_memcmp( stream->cursor, "%!PS-TrueTypeFont", 17 ) != 0 )
+ {
+ FT_TRACE2(( " not a Type42 font\n" ));
+ error = FT_THROW( Unknown_File_Format );
+ }
+
+ FT_FRAME_EXIT();
+
+ if ( error || FT_STREAM_SEEK( 0 ) )
+ goto Exit;
+
+ size = (FT_Long)stream->size;
+
+ /* now, try to load `size' bytes of the `base' dictionary we */
+ /* found previously */
+
+ /* if it is a memory-based resource, set up pointers */
+ if ( !stream->read )
+ {
+ parser->base_dict = (FT_Byte*)stream->base + stream->pos;
+ parser->base_len = size;
+ parser->in_memory = 1;
+
+ /* check that the `size' field is valid */
+ if ( FT_STREAM_SKIP( size ) )
+ goto Exit;
+ }
+ else
+ {
+ /* read segment in memory */
+ if ( FT_QALLOC( parser->base_dict, size ) ||
+ FT_STREAM_READ( parser->base_dict, size ) )
+ goto Exit;
+
+ parser->base_len = size;
+ }
+
+ parser->root.base = parser->base_dict;
+ parser->root.cursor = parser->base_dict;
+ parser->root.limit = parser->root.cursor + parser->base_len;
+
+ Exit:
+ if ( error && !parser->in_memory )
+ FT_FREE( parser->base_dict );
+
+ return error;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ t42_parser_done( T42_Parser parser )
+ {
+ FT_Memory memory = parser->root.memory;
+
+
+ /* free the base dictionary only when we have a disk stream */
+ if ( !parser->in_memory )
+ FT_FREE( parser->base_dict );
+
+ if ( parser->root.funcs.done )
+ parser->root.funcs.done( &parser->root );
+ }
+
+
+ static int
+ t42_is_space( FT_Byte c )
+ {
+ return ( c == ' ' || c == '\t' ||
+ c == '\r' || c == '\n' || c == '\f' ||
+ c == '\0' );
+ }
+
+
+ static void
+ t42_parse_font_matrix( T42_Face face,
+ T42_Loader loader )
+ {
+ T42_Parser parser = &loader->parser;
+ FT_Matrix* matrix = &face->type1.font_matrix;
+ FT_Vector* offset = &face->type1.font_offset;
+ FT_Fixed temp[6];
+ FT_Fixed temp_scale;
+ FT_Int result;
+
+
+ result = T1_ToFixedArray( parser, 6, temp, 0 );
+
+ if ( result < 6 )
+ {
+ parser->root.error = FT_THROW( Invalid_File_Format );
+ return;
+ }
+
+ temp_scale = FT_ABS( temp[3] );
+
+ if ( temp_scale == 0 )
+ {
+ FT_ERROR(( "t42_parse_font_matrix: invalid font matrix\n" ));
+ parser->root.error = FT_THROW( Invalid_File_Format );
+ return;
+ }
+
+ /* atypical case */
+ if ( temp_scale != 0x10000L )
+ {
+ temp[0] = FT_DivFix( temp[0], temp_scale );
+ temp[1] = FT_DivFix( temp[1], temp_scale );
+ temp[2] = FT_DivFix( temp[2], temp_scale );
+ temp[4] = FT_DivFix( temp[4], temp_scale );
+ temp[5] = FT_DivFix( temp[5], temp_scale );
+ temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L;
+ }
+
+ matrix->xx = temp[0];
+ matrix->yx = temp[1];
+ matrix->xy = temp[2];
+ matrix->yy = temp[3];
+
+ if ( !FT_Matrix_Check( matrix ) )
+ {
+ FT_ERROR(( "t42_parse_font_matrix: invalid font matrix\n" ));
+ parser->root.error = FT_THROW( Invalid_File_Format );
+ return;
+ }
+
+ /* note that the offsets must be expressed in integer font units */
+ offset->x = temp[4] >> 16;
+ offset->y = temp[5] >> 16;
+ }
+
+
+ static void
+ t42_parse_encoding( T42_Face face,
+ T42_Loader loader )
+ {
+ T42_Parser parser = &loader->parser;
+ FT_Byte* cur;
+ FT_Byte* limit = parser->root.limit;
+
+ PSAux_Service psaux = (PSAux_Service)face->psaux;
+
+
+ T1_Skip_Spaces( parser );
+ cur = parser->root.cursor;
+ if ( cur >= limit )
+ {
+ FT_ERROR(( "t42_parse_encoding: out of bounds\n" ));
+ parser->root.error = FT_THROW( Invalid_File_Format );
+ return;
+ }
+
+ /* if we have a number or `[', the encoding is an array, */
+ /* and we must load it now */
+ if ( ft_isdigit( *cur ) || *cur == '[' )
+ {
+ T1_Encoding encode = &face->type1.encoding;
+ FT_Int count, n;
+ PS_Table char_table = &loader->encoding_table;
+ FT_Memory memory = parser->root.memory;
+ FT_Error error;
+ FT_Bool only_immediates = 0;
+
+
+ /* read the number of entries in the encoding; should be 256 */
+ if ( *cur == '[' )
+ {
+ count = 256;
+ only_immediates = 1;
+ parser->root.cursor++;
+ }
+ else
+ count = (FT_Int)T1_ToInt( parser );
+
+ /* only composite fonts (which we don't support) */
+ /* can have larger values */
+ if ( count > 256 )
+ {
+ FT_ERROR(( "t42_parse_encoding: invalid encoding array size\n" ));
+ parser->root.error = FT_THROW( Invalid_File_Format );
+ return;
+ }
+
+ T1_Skip_Spaces( parser );
+ if ( parser->root.cursor >= limit )
+ return;
+
+ /* PostScript happily allows overwriting of encoding arrays */
+ if ( encode->char_index )
+ {
+ FT_FREE( encode->char_index );
+ FT_FREE( encode->char_name );
+ T1_Release_Table( char_table );
+ }
+
+ /* we use a T1_Table to store our charnames */
+ loader->num_chars = encode->num_chars = count;
+ if ( FT_QNEW_ARRAY( encode->char_index, count ) ||
+ FT_QNEW_ARRAY( encode->char_name, count ) ||
+ FT_SET_ERROR( psaux->ps_table_funcs->init(
+ char_table, count, memory ) ) )
+ {
+ parser->root.error = error;
+ return;
+ }
+
+ /* We need to `zero' out encoding_table.elements */
+ for ( n = 0; n < count; n++ )
+ (void)T1_Add_Table( char_table, n, ".notdef", 8 );
+
+ /* Now we need to read records of the form */
+ /* */
+ /* ... charcode /charname ... */
+ /* */
+ /* for each entry in our table. */
+ /* */
+ /* We simply look for a number followed by an immediate */
+ /* name. Note that this ignores correctly the sequence */
+ /* that is often seen in type42 fonts: */
+ /* */
+ /* 0 1 255 { 1 index exch /.notdef put } for dup */
+ /* */
+ /* used to clean the encoding array before anything else. */
+ /* */
+ /* Alternatively, if the array is directly given as */
+ /* */
+ /* /Encoding [ ... ] */
+ /* */
+ /* we only read immediates. */
+
+ n = 0;
+ T1_Skip_Spaces( parser );
+
+ while ( parser->root.cursor < limit )
+ {
+ cur = parser->root.cursor;
+
+ /* we stop when we encounter `def' or `]' */
+ if ( *cur == 'd' && cur + 3 < limit )
+ {
+ if ( cur[1] == 'e' &&
+ cur[2] == 'f' &&
+ t42_is_space( cur[3] ) )
+ {
+ FT_TRACE6(( "encoding end\n" ));
+ cur += 3;
+ break;
+ }
+ }
+ if ( *cur == ']' )
+ {
+ FT_TRACE6(( "encoding end\n" ));
+ cur++;
+ break;
+ }
+
+ /* check whether we have found an entry */
+ if ( ft_isdigit( *cur ) || only_immediates )
+ {
+ FT_Int charcode;
+
+
+ if ( only_immediates )
+ charcode = n;
+ else
+ {
+ charcode = (FT_Int)T1_ToInt( parser );
+ T1_Skip_Spaces( parser );
+
+ /* protect against invalid charcode */
+ if ( cur == parser->root.cursor )
+ {
+ parser->root.error = FT_THROW( Unknown_File_Format );
+ return;
+ }
+ }
+
+ cur = parser->root.cursor;
+
+ if ( cur + 2 < limit && *cur == '/' && n < count )
+ {
+ FT_UInt len;
+
+
+ cur++;
+
+ parser->root.cursor = cur;
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.cursor >= limit )
+ return;
+ if ( parser->root.error )
+ return;
+
+ len = (FT_UInt)( parser->root.cursor - cur );
+
+ parser->root.error = T1_Add_Table( char_table, charcode,
+ cur, len + 1 );
+ if ( parser->root.error )
+ return;
+ char_table->elements[charcode][len] = '\0';
+
+ n++;
+ }
+ else if ( only_immediates )
+ {
+ /* Since the current position is not updated for */
+ /* immediates-only mode we would get an infinite loop if */
+ /* we don't do anything here. */
+ /* */
+ /* This encoding array is not valid according to the */
+ /* type42 specification (it might be an encoding for a CID */
+ /* type42 font, however), so we conclude that this font is */
+ /* NOT a type42 font. */
+ parser->root.error = FT_THROW( Unknown_File_Format );
+ return;
+ }
+ }
+ else
+ {
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.error )
+ return;
+ }
+
+ T1_Skip_Spaces( parser );
+ }
+
+ face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY;
+ parser->root.cursor = cur;
+ }
+
+ /* Otherwise, we should have either `StandardEncoding', */
+ /* `ExpertEncoding', or `ISOLatin1Encoding' */
+ else
+ {
+ if ( cur + 17 < limit &&
+ ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 )
+ face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD;
+
+ else if ( cur + 15 < limit &&
+ ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 )
+ face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT;
+
+ else if ( cur + 18 < limit &&
+ ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 )
+ face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1;
+
+ else
+ parser->root.error = FT_ERR( Ignore );
+ }
+ }
+
+
+ typedef enum T42_Load_Status_
+ {
+ BEFORE_START,
+ BEFORE_TABLE_DIR,
+ OTHER_TABLES
+
+ } T42_Load_Status;
+
+
+ static void
+ t42_parse_sfnts( T42_Face face,
+ T42_Loader loader )
+ {
+ T42_Parser parser = &loader->parser;
+ FT_Memory memory = parser->root.memory;
+ FT_Byte* cur;
+ FT_Byte* limit = parser->root.limit;
+ FT_Error error;
+ FT_Int num_tables = 0;
+ FT_Long ttf_count;
+ FT_Long ttf_reserved;
+
+ FT_ULong n, string_size, old_string_size, real_size;
+ FT_Byte* string_buf = NULL;
+ FT_Bool allocated = 0;
+
+ T42_Load_Status status;
+
+ /** There should only be one sfnts array, but free any previous. */
+ FT_FREE( face->ttf_data );
+ face->ttf_size = 0;
+
+ /* The format is */
+ /* */
+ /* /sfnts [ <hexstring> <hexstring> ... ] def */
+ /* */
+ /* or */
+ /* */
+ /* /sfnts [ */
+ /* <num_bin_bytes> RD <binary data> */
+ /* <num_bin_bytes> RD <binary data> */
+ /* ... */
+ /* ] def */
+ /* */
+ /* with exactly one space after the `RD' token. */
+
+ T1_Skip_Spaces( parser );
+
+ if ( parser->root.cursor >= limit || *parser->root.cursor++ != '[' )
+ {
+ FT_ERROR(( "t42_parse_sfnts: can't find begin of sfnts vector\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ T1_Skip_Spaces( parser );
+ status = BEFORE_START;
+ string_size = 0;
+ old_string_size = 0;
+ ttf_count = 0;
+ ttf_reserved = 12;
+ if ( FT_QALLOC( face->ttf_data, ttf_reserved ) )
+ goto Fail;
+
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( "t42_parse_sfnts:\n" ));
+
+ while ( parser->root.cursor < limit )
+ {
+ FT_ULong size;
+
+
+ cur = parser->root.cursor;
+
+ if ( *cur == ']' )
+ {
+ parser->root.cursor++;
+ face->ttf_size = ttf_count;
+ goto Exit;
+ }
+
+ else if ( *cur == '<' )
+ {
+ if ( string_buf && !allocated )
+ {
+ FT_ERROR(( "t42_parse_sfnts: "
+ "can't handle mixed binary and hex strings\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.error )
+ goto Exit;
+
+ /* don't include delimiters */
+ string_size = (FT_ULong)( ( parser->root.cursor - cur - 2 + 1 ) / 2 );
+ if ( !string_size )
+ {
+ FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+ if ( FT_QREALLOC( string_buf, old_string_size, string_size ) )
+ goto Fail;
+
+ allocated = 1;
+
+ parser->root.cursor = cur;
+ (void)T1_ToBytes( parser, string_buf, string_size, &real_size, 1 );
+ old_string_size = string_size;
+ string_size = real_size;
+ }
+
+ else if ( ft_isdigit( *cur ) )
+ {
+ FT_Long tmp;
+
+
+ if ( allocated )
+ {
+ FT_ERROR(( "t42_parse_sfnts: "
+ "can't handle mixed binary and hex strings\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ tmp = T1_ToInt( parser );
+ if ( tmp < 0 )
+ {
+ FT_ERROR(( "t42_parse_sfnts: invalid string size\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+ else
+ string_size = (FT_ULong)tmp;
+
+ T1_Skip_PS_Token( parser ); /* `RD' */
+ if ( parser->root.error )
+ return;
+
+ string_buf = parser->root.cursor + 1; /* one space after `RD' */
+
+ if ( (FT_ULong)( limit - parser->root.cursor ) <= string_size )
+ {
+ FT_ERROR(( "t42_parse_sfnts: too much binary data\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+ else
+ parser->root.cursor += string_size + 1;
+ }
+
+ if ( !string_buf )
+ {
+ FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ /* A string can have a trailing zero (odd) byte for padding. */
+ /* Ignore it. */
+ if ( ( string_size & 1 ) && string_buf[string_size - 1] == 0 )
+ string_size--;
+
+ if ( !string_size )
+ {
+ FT_ERROR(( "t42_parse_sfnts: invalid string\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ FT_TRACE2(( " PS string size %5lu bytes, offset 0x%08lx (%lu)\n",
+ string_size, ttf_count, ttf_count ));
+
+ /* The whole TTF is now loaded into `string_buf'. We are */
+ /* checking its contents while copying it to `ttf_data'. */
+
+ size = (FT_ULong)( limit - parser->root.cursor );
+
+ for ( n = 0; n < string_size; n++ )
+ {
+ switch ( status )
+ {
+ case BEFORE_START:
+ /* load offset table, 12 bytes */
+ if ( ttf_count < 12 )
+ {
+ face->ttf_data[ttf_count++] = string_buf[n];
+ continue;
+ }
+ else
+ {
+ FT_Long ttf_reserved_prev = ttf_reserved;
+
+
+ num_tables = 16 * face->ttf_data[4] + face->ttf_data[5];
+ status = BEFORE_TABLE_DIR;
+ ttf_reserved = 12 + 16 * num_tables;
+
+ FT_TRACE2(( " SFNT directory contains %d tables\n",
+ num_tables ));
+
+ if ( (FT_Long)size < ttf_reserved )
+ {
+ FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ if ( FT_QREALLOC( face->ttf_data, ttf_reserved_prev,
+ ttf_reserved ) )
+ goto Fail;
+ }
+ FALL_THROUGH;
+
+ case BEFORE_TABLE_DIR:
+ /* the offset table is read; read the table directory */
+ if ( ttf_count < ttf_reserved )
+ {
+ face->ttf_data[ttf_count++] = string_buf[n];
+ continue;
+ }
+ else
+ {
+ int i;
+ FT_ULong len;
+ FT_Long ttf_reserved_prev = ttf_reserved;
+
+
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( " table length\n" ));
+ FT_TRACE2(( " ------------------------------\n" ));
+
+ for ( i = 0; i < num_tables; i++ )
+ {
+ FT_Byte* p = face->ttf_data + 12 + 16 * i + 12;
+
+
+ len = FT_PEEK_ULONG( p );
+ FT_TRACE2(( " %4i 0x%08lx (%lu)\n", i, len, len ));
+
+ if ( len > size ||
+ ttf_reserved > (FT_Long)( size - len ) )
+ {
+ FT_ERROR(( "t42_parse_sfnts:"
+ " invalid data in sfnts array\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ /* Pad to a 4-byte boundary length */
+ ttf_reserved += (FT_Long)( ( len + 3 ) & ~3U );
+ }
+ ttf_reserved += 1;
+
+ status = OTHER_TABLES;
+
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( " allocating %ld bytes\n", ttf_reserved ));
+ FT_TRACE2(( "\n" ));
+
+ if ( FT_QREALLOC( face->ttf_data, ttf_reserved_prev,
+ ttf_reserved ) )
+ goto Fail;
+ }
+ FALL_THROUGH;
+
+ case OTHER_TABLES:
+ /* all other tables are just copied */
+ if ( ttf_count >= ttf_reserved )
+ {
+ FT_ERROR(( "t42_parse_sfnts: too much binary data\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+ face->ttf_data[ttf_count++] = string_buf[n];
+ }
+ }
+
+ T1_Skip_Spaces( parser );
+ }
+
+ /* if control reaches this point, the format was not valid */
+ error = FT_THROW( Invalid_File_Format );
+
+ Fail:
+ parser->root.error = error;
+
+ Exit:
+ if ( parser->root.error )
+ {
+ FT_FREE( face->ttf_data );
+ face->ttf_size = 0;
+ }
+ if ( allocated )
+ FT_FREE( string_buf );
+ }
+
+
+ static void
+ t42_parse_charstrings( T42_Face face,
+ T42_Loader loader )
+ {
+ T42_Parser parser = &loader->parser;
+ PS_Table code_table = &loader->charstrings;
+ PS_Table name_table = &loader->glyph_names;
+ PS_Table swap_table = &loader->swap_table;
+ FT_Memory memory = parser->root.memory;
+ FT_Error error;
+
+ PSAux_Service psaux = (PSAux_Service)face->psaux;
+
+ FT_Byte* cur;
+ FT_Byte* limit = parser->root.limit;
+ FT_Int n;
+ FT_Int notdef_index = 0;
+ FT_Byte notdef_found = 0;
+
+
+ T1_Skip_Spaces( parser );
+
+ if ( parser->root.cursor >= limit )
+ {
+ FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ if ( ft_isdigit( *parser->root.cursor ) )
+ {
+ loader->num_glyphs = T1_ToInt( parser );
+ if ( parser->root.error )
+ return;
+ if ( loader->num_glyphs < 0 )
+ {
+ FT_ERROR(( "t42_parse_encoding: invalid number of glyphs\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ /* we certainly need more than 4 bytes per glyph */
+ if ( loader->num_glyphs > ( limit - parser->root.cursor ) >> 2 )
+ {
+ FT_TRACE0(( "t42_parse_charstrings: adjusting number of glyphs"
+ " (from %d to %ld)\n",
+ loader->num_glyphs,
+ ( limit - parser->root.cursor ) >> 2 ));
+ loader->num_glyphs = ( limit - parser->root.cursor ) >> 2;
+ }
+
+ }
+ else if ( *parser->root.cursor == '<' )
+ {
+ /* We have `<< ... >>'. Count the number of `/' in the dictionary */
+ /* to get its size. */
+ FT_Int count = 0;
+
+
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.error )
+ return;
+ T1_Skip_Spaces( parser );
+ cur = parser->root.cursor;
+
+ while ( parser->root.cursor < limit )
+ {
+ if ( *parser->root.cursor == '/' )
+ count++;
+ else if ( *parser->root.cursor == '>' )
+ {
+ loader->num_glyphs = count;
+ parser->root.cursor = cur; /* rewind */
+ break;
+ }
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.error )
+ return;
+ T1_Skip_Spaces( parser );
+ }
+ }
+ else
+ {
+ FT_ERROR(( "t42_parse_charstrings: invalid token\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ if ( parser->root.cursor >= limit )
+ {
+ FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ /* initialize tables */
+
+ /* contrary to Type1, we disallow multiple CharStrings arrays */
+ if ( swap_table->init )
+ {
+ FT_ERROR(( "t42_parse_charstrings:"
+ " only one CharStrings array allowed\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ error = psaux->ps_table_funcs->init( code_table,
+ loader->num_glyphs,
+ memory );
+ if ( error )
+ goto Fail;
+
+ error = psaux->ps_table_funcs->init( name_table,
+ loader->num_glyphs,
+ memory );
+ if ( error )
+ goto Fail;
+
+ /* Initialize table for swapping index notdef_index and */
+ /* index 0 names and codes (if necessary). */
+
+ error = psaux->ps_table_funcs->init( swap_table, 4, memory );
+ if ( error )
+ goto Fail;
+
+ n = 0;
+
+ for (;;)
+ {
+ /* We support two formats. */
+ /* */
+ /* `/glyphname' + index [+ `def'] */
+ /* `(glyphname)' [+ `cvn'] + index [+ `def'] */
+ /* */
+ /* The latter format gets created by the */
+ /* LilyPond typesetting program. */
+
+ T1_Skip_Spaces( parser );
+
+ cur = parser->root.cursor;
+ if ( cur >= limit )
+ break;
+
+ /* We stop when we find an `end' keyword or '>' */
+ if ( *cur == 'e' &&
+ cur + 3 < limit &&
+ cur[1] == 'n' &&
+ cur[2] == 'd' &&
+ t42_is_space( cur[3] ) )
+ break;
+ if ( *cur == '>' )
+ break;
+
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.cursor >= limit )
+ {
+ FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+ if ( parser->root.error )
+ return;
+
+ if ( *cur == '/' || *cur == '(' )
+ {
+ FT_UInt len;
+ FT_Bool have_literal = FT_BOOL( *cur == '(' );
+
+
+ if ( cur + ( have_literal ? 3 : 2 ) >= limit )
+ {
+ FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ cur++; /* skip `/' */
+ len = (FT_UInt)( parser->root.cursor - cur );
+ if ( have_literal )
+ len--;
+
+ error = T1_Add_Table( name_table, n, cur, len + 1 );
+ if ( error )
+ goto Fail;
+
+ /* add a trailing zero to the name table */
+ name_table->elements[n][len] = '\0';
+
+ /* record index of /.notdef */
+ if ( *cur == '.' &&
+ ft_strcmp( ".notdef",
+ (const char*)( name_table->elements[n] ) ) == 0 )
+ {
+ notdef_index = n;
+ notdef_found = 1;
+ }
+
+ T1_Skip_Spaces( parser );
+
+ if ( have_literal )
+ T1_Skip_PS_Token( parser );
+
+ cur = parser->root.cursor;
+
+ (void)T1_ToInt( parser );
+ if ( parser->root.cursor >= limit )
+ {
+ FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ len = (FT_UInt)( parser->root.cursor - cur );
+
+ error = T1_Add_Table( code_table, n, cur, len + 1 );
+ if ( error )
+ goto Fail;
+
+ code_table->elements[n][len] = '\0';
+
+ n++;
+ if ( n >= loader->num_glyphs )
+ break;
+ }
+ }
+
+ loader->num_glyphs = n;
+
+ if ( !notdef_found )
+ {
+ FT_ERROR(( "t42_parse_charstrings: no /.notdef glyph\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
+ }
+
+ /* if /.notdef does not occupy index 0, do our magic. */
+ if ( ft_strcmp( ".notdef", (const char*)name_table->elements[0] ) )
+ {
+ /* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */
+ /* name and code entries to swap_table. Then place notdef_index */
+ /* name and code entries into swap_table. Then swap name and code */
+ /* entries at indices notdef_index and 0 using values stored in */
+ /* swap_table. */
+
+ /* Index 0 name */
+ error = T1_Add_Table( swap_table, 0,
+ name_table->elements[0],
+ name_table->lengths [0] );
+ if ( error )
+ goto Fail;
+
+ /* Index 0 code */
+ error = T1_Add_Table( swap_table, 1,
+ code_table->elements[0],
+ code_table->lengths [0] );
+ if ( error )
+ goto Fail;
+
+ /* Index notdef_index name */
+ error = T1_Add_Table( swap_table, 2,
+ name_table->elements[notdef_index],
+ name_table->lengths [notdef_index] );
+ if ( error )
+ goto Fail;
+
+ /* Index notdef_index code */
+ error = T1_Add_Table( swap_table, 3,
+ code_table->elements[notdef_index],
+ code_table->lengths [notdef_index] );
+ if ( error )
+ goto Fail;
+
+ error = T1_Add_Table( name_table, notdef_index,
+ swap_table->elements[0],
+ swap_table->lengths [0] );
+ if ( error )
+ goto Fail;
+
+ error = T1_Add_Table( code_table, notdef_index,
+ swap_table->elements[1],
+ swap_table->lengths [1] );
+ if ( error )
+ goto Fail;
+
+ error = T1_Add_Table( name_table, 0,
+ swap_table->elements[2],
+ swap_table->lengths [2] );
+ if ( error )
+ goto Fail;
+
+ error = T1_Add_Table( code_table, 0,
+ swap_table->elements[3],
+ swap_table->lengths [3] );
+ if ( error )
+ goto Fail;
+
+ }
+
+ return;
+
+ Fail:
+ parser->root.error = error;
+ }
+
+
+ static FT_Error
+ t42_load_keyword( T42_Face face,
+ T42_Loader loader,
+ T1_Field field )
+ {
+ FT_Error error;
+ void* dummy_object;
+ void** objects;
+ FT_UInt max_objects = 0;
+
+
+ /* if the keyword has a dedicated callback, call it */
+ if ( field->type == T1_FIELD_TYPE_CALLBACK )
+ {
+ field->reader( (FT_Face)face, loader );
+ error = loader->parser.root.error;
+ goto Exit;
+ }
+
+ /* now the keyword is either a simple field or a table of fields; */
+ /* we are now going to take care of it */
+
+ switch ( field->location )
+ {
+ case T1_FIELD_LOCATION_FONT_INFO:
+ dummy_object = &face->type1.font_info;
+ break;
+
+ case T1_FIELD_LOCATION_FONT_EXTRA:
+ dummy_object = &face->type1.font_extra;
+ break;
+
+ case T1_FIELD_LOCATION_BBOX:
+ dummy_object = &face->type1.font_bbox;
+ break;
+
+ default:
+ dummy_object = &face->type1;
+ }
+
+ objects = &dummy_object;
+
+ if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY ||
+ field->type == T1_FIELD_TYPE_FIXED_ARRAY )
+ error = T1_Load_Field_Table( &loader->parser, field,
+ objects, max_objects, 0 );
+ else
+ error = T1_Load_Field( &loader->parser, field,
+ objects, max_objects, 0 );
+
+ Exit:
+ return error;
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ t42_parse_dict( T42_Face face,
+ T42_Loader loader,
+ FT_Byte* base,
+ FT_Long size )
+ {
+ T42_Parser parser = &loader->parser;
+ FT_Byte* limit;
+ FT_Int n_keywords = (FT_Int)( sizeof ( t42_keywords ) /
+ sizeof ( t42_keywords[0] ) );
+
+
+ parser->root.cursor = base;
+ parser->root.limit = base + size;
+ parser->root.error = FT_Err_Ok;
+
+ limit = parser->root.limit;
+
+ T1_Skip_Spaces( parser );
+
+ while ( parser->root.cursor < limit )
+ {
+ FT_Byte* cur;
+
+
+ cur = parser->root.cursor;
+
+ /* look for `FontDirectory' which causes problems for some fonts */
+ if ( *cur == 'F' && cur + 25 < limit &&
+ ft_strncmp( (char*)cur, "FontDirectory", 13 ) == 0 )
+ {
+ FT_Byte* cur2;
+
+
+ /* skip the `FontDirectory' keyword */
+ T1_Skip_PS_Token( parser );
+ T1_Skip_Spaces ( parser );
+ cur = cur2 = parser->root.cursor;
+
+ /* look up the `known' keyword */
+ while ( cur < limit )
+ {
+ if ( *cur == 'k' && cur + 5 < limit &&
+ ft_strncmp( (char*)cur, "known", 5 ) == 0 )
+ break;
+
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.error )
+ goto Exit;
+ T1_Skip_Spaces ( parser );
+ cur = parser->root.cursor;
+ }
+
+ if ( cur < limit )
+ {
+ T1_TokenRec token;
+
+
+ /* skip the `known' keyword and the token following it */
+ T1_Skip_PS_Token( parser );
+ T1_ToToken( parser, &token );
+
+ /* if the last token was an array, skip it! */
+ if ( token.type == T1_TOKEN_TYPE_ARRAY )
+ cur2 = parser->root.cursor;
+ }
+ parser->root.cursor = cur2;
+ }
+
+ /* look for immediates */
+ else if ( *cur == '/' && cur + 2 < limit )
+ {
+ FT_UInt len;
+
+
+ cur++;
+
+ parser->root.cursor = cur;
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.error )
+ goto Exit;
+
+ len = (FT_UInt)( parser->root.cursor - cur );
+
+ if ( len > 0 && len < 22 && parser->root.cursor < limit )
+ {
+ int i;
+
+
+ /* now compare the immediate name to the keyword table */
+
+ /* loop through all known keywords */
+ for ( i = 0; i < n_keywords; i++ )
+ {
+ T1_Field keyword = (T1_Field)&t42_keywords[i];
+ FT_Byte *name = (FT_Byte*)keyword->ident;
+
+
+ if ( !name )
+ continue;
+
+ if ( cur[0] == name[0] &&
+ len == ft_strlen( (const char *)name ) &&
+ ft_memcmp( cur, name, len ) == 0 )
+ {
+ /* we found it -- run the parsing callback! */
+ parser->root.error = t42_load_keyword( face,
+ loader,
+ keyword );
+ if ( parser->root.error )
+ return parser->root.error;
+ break;
+ }
+ }
+ }
+ }
+ else
+ {
+ T1_Skip_PS_Token( parser );
+ if ( parser->root.error )
+ goto Exit;
+ }
+
+ T1_Skip_Spaces( parser );
+ }
+
+ Exit:
+ return parser->root.error;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ t42_loader_init( T42_Loader loader,
+ T42_Face face )
+ {
+ FT_UNUSED( face );
+
+ FT_ZERO( loader );
+ loader->num_glyphs = 0;
+ loader->num_chars = 0;
+
+ /* initialize the tables -- simply set their `init' field to 0 */
+ loader->encoding_table.init = 0;
+ loader->charstrings.init = 0;
+ loader->glyph_names.init = 0;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ t42_loader_done( T42_Loader loader )
+ {
+ T42_Parser parser = &loader->parser;
+
+
+ /* finalize tables */
+ T1_Release_Table( &loader->encoding_table );
+ T1_Release_Table( &loader->charstrings );
+ T1_Release_Table( &loader->glyph_names );
+ T1_Release_Table( &loader->swap_table );
+
+ /* finalize parser */
+ t42_parser_done( parser );
+ }
+
+
+/* END */
diff --git a/modules/freetype2/src/type42/t42parse.h b/modules/freetype2/src/type42/t42parse.h
new file mode 100644
index 0000000000..5741c54137
--- /dev/null
+++ b/modules/freetype2/src/type42/t42parse.h
@@ -0,0 +1,91 @@
+/****************************************************************************
+ *
+ * t42parse.h
+ *
+ * Type 42 font parser (specification).
+ *
+ * Copyright (C) 2002-2023 by
+ * Roberto Alameda.
+ *
+ * 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 T42PARSE_H_
+#define T42PARSE_H_
+
+
+#include "t42objs.h"
+#include <freetype/internal/psaux.h>
+
+
+FT_BEGIN_HEADER
+
+ typedef struct T42_ParserRec_
+ {
+ PS_ParserRec root;
+ FT_Stream stream;
+
+ FT_Byte* base_dict;
+ FT_Long base_len;
+
+ FT_Bool in_memory;
+
+ } T42_ParserRec, *T42_Parser;
+
+
+ typedef struct T42_Loader_
+ {
+ T42_ParserRec parser; /* parser used to read the stream */
+
+ FT_Int num_chars; /* number of characters in encoding */
+ PS_TableRec encoding_table; /* PS_Table used to store the */
+ /* encoding character names */
+
+ FT_Int num_glyphs;
+ PS_TableRec glyph_names;
+ PS_TableRec charstrings;
+ PS_TableRec swap_table; /* For moving .notdef glyph to index 0. */
+
+ } T42_LoaderRec, *T42_Loader;
+
+
+ FT_LOCAL( FT_Error )
+ t42_parser_init( T42_Parser parser,
+ FT_Stream stream,
+ FT_Memory memory,
+ PSAux_Service psaux );
+
+ FT_LOCAL( void )
+ t42_parser_done( T42_Parser parser );
+
+
+ FT_LOCAL( FT_Error )
+ t42_parse_dict( T42_Face face,
+ T42_Loader loader,
+ FT_Byte* base,
+ FT_Long size );
+
+
+ FT_LOCAL( void )
+ t42_loader_init( T42_Loader loader,
+ T42_Face face );
+
+ FT_LOCAL( void )
+ t42_loader_done( T42_Loader loader );
+
+
+ /* */
+
+FT_END_HEADER
+
+
+#endif /* T42PARSE_H_ */
+
+
+/* END */
diff --git a/modules/freetype2/src/type42/t42types.h b/modules/freetype2/src/type42/t42types.h
new file mode 100644
index 0000000000..0bfe14ee4d
--- /dev/null
+++ b/modules/freetype2/src/type42/t42types.h
@@ -0,0 +1,56 @@
+/****************************************************************************
+ *
+ * t42types.h
+ *
+ * Type 42 font data types (specification only).
+ *
+ * Copyright (C) 2002-2023 by
+ * Roberto Alameda.
+ *
+ * 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 T42TYPES_H_
+#define T42TYPES_H_
+
+
+#include <freetype/freetype.h>
+#include <freetype/t1tables.h>
+#include <freetype/internal/t1types.h>
+#include <freetype/internal/pshints.h>
+
+
+FT_BEGIN_HEADER
+
+
+ typedef struct T42_FaceRec_
+ {
+ FT_FaceRec root;
+ T1_FontRec type1;
+ const void* psnames;
+ const void* psaux;
+#if 0
+ const void* afm_data;
+#endif
+ FT_Byte* ttf_data;
+ FT_Long ttf_size;
+ FT_Face ttf_face;
+ FT_CharMapRec charmaprecs[2];
+ FT_CharMap charmaps[2];
+ PS_UnicodesRec unicode_map;
+
+ } T42_FaceRec, *T42_Face;
+
+
+FT_END_HEADER
+
+#endif /* T42TYPES_H_ */
+
+
+/* END */
diff --git a/modules/freetype2/src/type42/type42.c b/modules/freetype2/src/type42/type42.c
new file mode 100644
index 0000000000..8d2302c8e6
--- /dev/null
+++ b/modules/freetype2/src/type42/type42.c
@@ -0,0 +1,26 @@
+/****************************************************************************
+ *
+ * type42.c
+ *
+ * FreeType Type 42 driver component.
+ *
+ * Copyright (C) 2002-2023 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.
+ *
+ */
+
+
+#define FT_MAKE_OPTION_SINGLE_OBJECT
+
+#include "t42drivr.c"
+#include "t42objs.c"
+#include "t42parse.c"
+
+
+/* END */
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-11 21:46:53 +0000