diff options
Diffstat (limited to 'src/freetype2/sfnt')
| -rw-r--r-- | src/freetype2/sfnt/sfdriver.c | 215 | ||||
| -rw-r--r-- | src/freetype2/sfnt/sfdriver.h | 2 | ||||
| -rw-r--r-- | src/freetype2/sfnt/sfnt.c | 1 | ||||
| -rw-r--r-- | src/freetype2/sfnt/sfntpic.c | 101 | ||||
| -rw-r--r-- | src/freetype2/sfnt/sfntpic.h | 88 | ||||
| -rw-r--r-- | src/freetype2/sfnt/sfobjs.c | 292 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttbdf.c | 16 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttcmap.c | 1437 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttcmap.h | 40 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttcmapc.h | 55 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttkern.c | 42 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttload.c | 197 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttmtx.c | 21 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttpost.c | 16 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttsbit.c | 30 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttsbit.h | 4 | ||||
| -rw-r--r-- | src/freetype2/sfnt/ttsbit0.c | 179 |
17 files changed, 2190 insertions, 546 deletions
diff --git a/src/freetype2/sfnt/sfdriver.c b/src/freetype2/sfnt/sfdriver.c index 5ba22a6..1d157b7 100644 --- a/src/freetype2/sfnt/sfdriver.c +++ b/src/freetype2/sfnt/sfdriver.c @@ -4,7 +4,7 @@ /* */ /* High-level SFNT driver interface (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -17,12 +17,14 @@ #include <ft2build.h> +#include FT_INTERNAL_DEBUG_H #include FT_INTERNAL_SFNT_H #include FT_INTERNAL_OBJECTS_H #include "sfdriver.h" #include "ttload.h" #include "sfobjs.h" +#include "sfntpic.h" #include "sferrors.h" @@ -48,6 +50,15 @@ #include FT_SERVICE_SFNT_H #include FT_SERVICE_TT_CMAP_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 trace_sfdriver + /* * SFNT TABLE SERVICE @@ -103,27 +114,28 @@ sfnt_table_info( TT_Face face, FT_UInt idx, FT_ULong *tag, + FT_ULong *offset, FT_ULong *length ) { - if ( !tag || !length ) + if ( !tag || !offset || !length ) return SFNT_Err_Invalid_Argument; if ( idx >= face->num_tables ) return SFNT_Err_Table_Missing; *tag = face->dir_tables[idx].Tag; + *offset = face->dir_tables[idx].Offset; *length = face->dir_tables[idx].Length; return SFNT_Err_Ok; } - static const FT_Service_SFNT_TableRec sfnt_service_sfnt_table = - { + FT_DEFINE_SERVICE_SFNT_TABLEREC(sfnt_service_sfnt_table, (FT_SFNT_TableLoadFunc)tt_face_load_any, (FT_SFNT_TableGetFunc) get_sfnt_table, (FT_SFNT_TableInfoFunc)sfnt_table_info - }; + ) #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES @@ -151,11 +163,43 @@ } - static const FT_Service_GlyphDictRec sfnt_service_glyph_dict = + static FT_UInt + sfnt_get_name_index( TT_Face face, + FT_String* glyph_name ) { + FT_Face root = &face->root; + FT_UInt i, max_gid = FT_UINT_MAX; + + + if ( root->num_glyphs < 0 ) + return 0; + else if ( ( FT_ULong ) root->num_glyphs < FT_UINT_MAX ) + max_gid = ( FT_UInt ) root->num_glyphs; + else + FT_TRACE0(( "Ignore glyph names for invalid GID 0x%08x - 0x%08x\n", + FT_UINT_MAX, root->num_glyphs )); + + for ( i = 0; i < max_gid; i++ ) + { + FT_String* gname; + FT_Error error = tt_face_get_ps_name( face, i, &gname ); + + + if ( error ) + continue; + + if ( !ft_strcmp( glyph_name, gname ) ) + return i; + } + + return 0; + } + + + FT_DEFINE_SERVICE_GLYPHDICTREC(sfnt_service_glyph_dict, (FT_GlyphDict_GetNameFunc) sfnt_get_glyph_name, - (FT_GlyphDict_NameIndexFunc)NULL - }; + (FT_GlyphDict_NameIndexFunc)sfnt_get_name_index + ) #endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */ @@ -275,19 +319,17 @@ return result; } - static const FT_Service_PsFontNameRec sfnt_service_ps_name = - { + FT_DEFINE_SERVICE_PSFONTNAMEREC(sfnt_service_ps_name, (FT_PsName_GetFunc)sfnt_get_ps_name - }; + ) /* * TT CMAP INFO */ - static const FT_Service_TTCMapsRec tt_service_get_cmap_info = - { + FT_DEFINE_SERVICE_TTCMAPSREC(tt_service_get_cmap_info, (TT_CMap_Info_GetFunc)tt_get_cmap_info - }; + ) #ifdef TT_CONFIG_OPTION_BDF @@ -328,11 +370,10 @@ } - static const FT_Service_BDFRec sfnt_service_bdf = - { + FT_DEFINE_SERVICE_BDFRec(sfnt_service_bdf, (FT_BDF_GetCharsetIdFunc) sfnt_get_charset_id, - (FT_BDF_GetPropertyFunc) tt_face_find_bdf_prop, - }; + (FT_BDF_GetPropertyFunc) tt_face_find_bdf_prop + ) #endif /* TT_CONFIG_OPTION_BDF */ @@ -341,29 +382,46 @@ * SERVICE LIST */ - static const FT_ServiceDescRec sfnt_services[] = - { - { FT_SERVICE_ID_SFNT_TABLE, &sfnt_service_sfnt_table }, - { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name }, -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES - { FT_SERVICE_ID_GLYPH_DICT, &sfnt_service_glyph_dict }, -#endif -#ifdef TT_CONFIG_OPTION_BDF - { FT_SERVICE_ID_BDF, &sfnt_service_bdf }, +#if defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES && defined TT_CONFIG_OPTION_BDF + FT_DEFINE_SERVICEDESCREC5(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &FT_SFNT_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_BDF, &FT_SFNT_SERVICE_BDF_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#elif defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_DEFINE_SERVICEDESCREC4(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &FT_SFNT_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#elif defined TT_CONFIG_OPTION_BDF + FT_DEFINE_SERVICEDESCREC4(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_BDF, &FT_SFNT_SERVICE_BDF_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#else + FT_DEFINE_SERVICEDESCREC3(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) #endif - { FT_SERVICE_ID_TT_CMAP, &tt_service_get_cmap_info }, - - { NULL, NULL } - }; FT_CALLBACK_DEF( FT_Module_Interface ) sfnt_get_interface( FT_Module module, const char* module_interface ) { + FT_Library library = module->library; + FT_UNUSED(library); FT_UNUSED( module ); - return ft_service_list_lookup( sfnt_services, module_interface ); + return ft_service_list_lookup( FT_SFNT_SERVICES_GET, module_interface ); } @@ -494,10 +552,18 @@ #endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#define PUT_EMBEDDED_BITMAPS(a) a +#else +#define PUT_EMBEDDED_BITMAPS(a) 0 +#endif +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES +#define PUT_PS_NAMES(a) a +#else +#define PUT_PS_NAMES(a) 0 +#endif - static - const SFNT_Interface sfnt_interface = - { + FT_DEFINE_SFNT_INTERFACE(sfnt_interface, tt_face_goto_table, sfnt_init_face, @@ -507,10 +573,8 @@ tt_face_load_any, -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_load_sfnt_header_stub, - tt_face_load_directory_stub, -#endif + tt_face_load_sfnt_header_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_load_directory_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ tt_face_load_head, tt_face_load_hhea, @@ -522,53 +586,32 @@ tt_face_load_name, tt_face_free_name, -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_load_hdmx_stub, - tt_face_free_hdmx_stub, -#endif + tt_face_load_hdmx_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_free_hdmx_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ tt_face_load_kern, tt_face_load_gasp, tt_face_load_pclt, -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS /* see `ttload.h' */ - tt_face_load_bhed, -#else - 0, -#endif + PUT_EMBEDDED_BITMAPS(tt_face_load_bhed), -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_set_sbit_strike_stub, - tt_face_load_sbit_stub, + tt_face_set_sbit_strike_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_load_sbit_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ - tt_find_sbit_image, - tt_load_sbit_metrics, -#endif + tt_find_sbit_image, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_load_sbit_metrics, /* FT_CONFIG_OPTION_OLD_INTERNALS */ -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - tt_face_load_sbit_image, -#else - 0, -#endif + PUT_EMBEDDED_BITMAPS(tt_face_load_sbit_image), -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_free_sbit_stub, -#endif + tt_face_free_sbit_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES /* see `ttpost.h' */ - tt_face_get_ps_name, - tt_face_free_ps_names, -#else - 0, - 0, -#endif + PUT_PS_NAMES(tt_face_get_ps_name), + PUT_PS_NAMES(tt_face_free_ps_names), -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_load_charmap_stub, - tt_face_free_charmap_stub, -#endif + tt_face_load_charmap_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_free_charmap_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ /* since version 2.1.8 */ @@ -579,27 +622,19 @@ tt_face_load_font_dir, tt_face_load_hmtx, -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS /* see `ttsbit.h' and `sfnt.h' */ - tt_face_load_eblc, - tt_face_free_eblc, + PUT_EMBEDDED_BITMAPS(tt_face_load_eblc), + PUT_EMBEDDED_BITMAPS(tt_face_free_eblc), - tt_face_set_sbit_strike, - tt_face_load_strike_metrics, -#else - 0, - 0, - 0, - 0, -#endif + PUT_EMBEDDED_BITMAPS(tt_face_set_sbit_strike), + PUT_EMBEDDED_BITMAPS(tt_face_load_strike_metrics), tt_face_get_metrics - }; + ) - FT_CALLBACK_TABLE_DEF - const FT_Module_Class sfnt_module_class = - { + FT_DEFINE_MODULE(sfnt_module_class, + 0, /* not a font driver or renderer */ sizeof( FT_ModuleRec ), @@ -607,12 +642,12 @@ 0x10000L, /* driver version 1.0 */ 0x20000L, /* driver requires FreeType 2.0 or higher */ - (const void*)&sfnt_interface, /* module specific interface */ + (const void*)&FT_SFNT_INTERFACE_GET, /* module specific interface */ (FT_Module_Constructor)0, (FT_Module_Destructor) 0, (FT_Module_Requester) sfnt_get_interface - }; + ) /* END */ diff --git a/src/freetype2/sfnt/sfdriver.h b/src/freetype2/sfnt/sfdriver.h index 92db796..5de25d5 100644 --- a/src/freetype2/sfnt/sfdriver.h +++ b/src/freetype2/sfnt/sfdriver.h @@ -27,7 +27,7 @@ FT_BEGIN_HEADER - FT_EXPORT_VAR( const FT_Module_Class ) sfnt_module_class; + FT_DECLARE_MODULE( sfnt_module_class ) FT_END_HEADER diff --git a/src/freetype2/sfnt/sfnt.c b/src/freetype2/sfnt/sfnt.c index 45a820b..fc507b4 100644 --- a/src/freetype2/sfnt/sfnt.c +++ b/src/freetype2/sfnt/sfnt.c @@ -19,6 +19,7 @@ #define FT_MAKE_OPTION_SINGLE_OBJECT #include <ft2build.h> +#include "sfntpic.c" #include "ttload.c" #include "ttmtx.c" #include "ttcmap.c" diff --git a/src/freetype2/sfnt/sfntpic.c b/src/freetype2/sfnt/sfntpic.c new file mode 100644 index 0000000..fd3cf4e --- /dev/null +++ b/src/freetype2/sfnt/sfntpic.c @@ -0,0 +1,101 @@ +/***************************************************************************/ +/* */ +/* sfntpic.c */ +/* */ +/* The FreeType position independent code services for sfnt module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* 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 <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "sfntpic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from sfdriver.c */ + FT_Error FT_Create_Class_sfnt_services( FT_Library, FT_ServiceDescRec**); + void FT_Destroy_Class_sfnt_services( FT_Library, FT_ServiceDescRec*); + void FT_Init_Class_sfnt_service_bdf( FT_Service_BDFRec*); + void FT_Init_Class_sfnt_interface( FT_Library, SFNT_Interface*); + void FT_Init_Class_sfnt_service_glyph_dict( FT_Library, FT_Service_GlyphDictRec*); + void FT_Init_Class_sfnt_service_ps_name( FT_Library, FT_Service_PsFontNameRec*); + void FT_Init_Class_tt_service_get_cmap_info( FT_Library, FT_Service_TTCMapsRec*); + void FT_Init_Class_sfnt_service_sfnt_table( FT_Service_SFNT_TableRec*); + + /* forward declaration of PIC init functions from ttcmap.c */ + FT_Error FT_Create_Class_tt_cmap_classes( FT_Library, TT_CMap_Class**); + void FT_Destroy_Class_tt_cmap_classes( FT_Library, TT_CMap_Class*); + + void + sfnt_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->sfnt ) + { + sfntModulePIC* container = (sfntModulePIC*)pic_container->sfnt; + if(container->sfnt_services) + FT_Destroy_Class_sfnt_services(library, container->sfnt_services); + container->sfnt_services = NULL; + if(container->tt_cmap_classes) + FT_Destroy_Class_tt_cmap_classes(library, container->tt_cmap_classes); + container->tt_cmap_classes = NULL; + FT_FREE( container ); + pic_container->sfnt = NULL; + } + } + + + FT_Error + sfnt_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = FT_Err_Ok; + sfntModulePIC* container; + FT_Memory memory = library->memory; + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof(*container) ); + pic_container->sfnt = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_sfnt_services(library, &container->sfnt_services); + if(error) + goto Exit; + error = FT_Create_Class_tt_cmap_classes(library, &container->tt_cmap_classes); + if(error) + goto Exit; + FT_Init_Class_sfnt_service_glyph_dict(library, &container->sfnt_service_glyph_dict); + FT_Init_Class_sfnt_service_ps_name(library, &container->sfnt_service_ps_name); + FT_Init_Class_tt_service_get_cmap_info(library, &container->tt_service_get_cmap_info); + FT_Init_Class_sfnt_service_sfnt_table(&container->sfnt_service_sfnt_table); +#ifdef TT_CONFIG_OPTION_BDF + FT_Init_Class_sfnt_service_bdf(&container->sfnt_service_bdf); +#endif + FT_Init_Class_sfnt_interface(library, &container->sfnt_interface); + +Exit: + if(error) + sfnt_module_class_pic_free(library); + return error; + } + + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/freetype2/sfnt/sfntpic.h b/src/freetype2/sfnt/sfntpic.h new file mode 100644 index 0000000..6943b42 --- /dev/null +++ b/src/freetype2/sfnt/sfntpic.h @@ -0,0 +1,88 @@ +/***************************************************************************/ +/* */ +/* sfntpic.h */ +/* */ +/* The FreeType position independent code services for sfnt module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* 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 __SFNTPIC_H__ +#define __SFNTPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + + #ifndef FT_CONFIG_OPTION_PIC +#define FT_SFNT_SERVICES_GET sfnt_services +#define FT_SFNT_SERVICE_GLYPH_DICT_GET sfnt_service_glyph_dict +#define FT_SFNT_SERVICE_PS_NAME_GET sfnt_service_ps_name +#define FT_TT_SERVICE_GET_CMAP_INFO_GET tt_service_get_cmap_info +#define FT_SFNT_SERVICES_GET sfnt_services +#define FT_TT_CMAP_CLASSES_GET tt_cmap_classes +#define FT_SFNT_SERVICE_SFNT_TABLE_GET sfnt_service_sfnt_table +#define FT_SFNT_SERVICE_BDF_GET sfnt_service_bdf +#define FT_SFNT_INTERFACE_GET sfnt_interface + +#else /* FT_CONFIG_OPTION_PIC */ + +/* some include files required for members of sfntModulePIC */ +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_TT_CMAP_H +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.h" +#include FT_SERVICE_BDF_H +#endif +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include "ttcmap.h" + +typedef struct sfntModulePIC_ + { + FT_ServiceDescRec* sfnt_services; + FT_Service_GlyphDictRec sfnt_service_glyph_dict; + FT_Service_PsFontNameRec sfnt_service_ps_name; + FT_Service_TTCMapsRec tt_service_get_cmap_info; + TT_CMap_Class* tt_cmap_classes; + FT_Service_SFNT_TableRec sfnt_service_sfnt_table; +#ifdef TT_CONFIG_OPTION_BDF + FT_Service_BDFRec sfnt_service_bdf; +#endif + SFNT_Interface sfnt_interface; + } sfntModulePIC; + +#define GET_PIC(lib) ((sfntModulePIC*)((lib)->pic_container.sfnt)) +#define FT_SFNT_SERVICES_GET (GET_PIC(library)->sfnt_services) +#define FT_SFNT_SERVICE_GLYPH_DICT_GET (GET_PIC(library)->sfnt_service_glyph_dict) +#define FT_SFNT_SERVICE_PS_NAME_GET (GET_PIC(library)->sfnt_service_ps_name) +#define FT_TT_SERVICE_GET_CMAP_INFO_GET (GET_PIC(library)->tt_service_get_cmap_info) +#define FT_SFNT_SERVICES_GET (GET_PIC(library)->sfnt_services) +#define FT_TT_CMAP_CLASSES_GET (GET_PIC(library)->tt_cmap_classes) +#define FT_SFNT_SERVICE_SFNT_TABLE_GET (GET_PIC(library)->sfnt_service_sfnt_table) +#define FT_SFNT_SERVICE_BDF_GET (GET_PIC(library)->sfnt_service_bdf) +#define FT_SFNT_INTERFACE_GET (GET_PIC(library)->sfnt_interface) + +#endif /* FT_CONFIG_OPTION_PIC */ + +/* */ + +FT_END_HEADER + +#endif /* __SFNTPIC_H__ */ + + +/* END */ diff --git a/src/freetype2/sfnt/sfobjs.c b/src/freetype2/sfnt/sfobjs.c index cc90110..cef3cd9 100644 --- a/src/freetype2/sfnt/sfobjs.c +++ b/src/freetype2/sfnt/sfobjs.c @@ -4,7 +4,7 @@ /* */ /* SFNT object management (base). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -123,14 +123,20 @@ /* */ /* nameid :: The name id of the name record to return. */ /* */ + /* <InOut> */ + /* name :: The address of a string pointer. NULL if no name is */ + /* present. */ + /* */ /* <Return> */ - /* Character string. NULL if no name is present. */ + /* FreeType error code. 0 means success. */ /* */ - static FT_String* - tt_face_get_name( TT_Face face, - FT_UShort nameid ) + static FT_Error + tt_face_get_name( TT_Face face, + FT_UShort nameid, + FT_String** name ) { FT_Memory memory = face->root.memory; + FT_Error error = SFNT_Err_Ok; FT_String* result = NULL; FT_UShort n; TT_NameEntryRec* rec; @@ -145,6 +151,8 @@ TT_NameEntry_ConvertFunc convert; + FT_ASSERT( name ); + rec = face->name_table.names; for ( n = 0; n < face->num_names; n++, rec++ ) { @@ -256,11 +264,8 @@ { if ( rec->string == NULL ) { - FT_Error error = SFNT_Err_Ok; FT_Stream stream = face->name_table.stream; - FT_UNUSED( error ); - if ( FT_QNEW_ARRAY ( rec->string, rec->stringLength ) || FT_STREAM_SEEK( rec->stringOffset ) || @@ -277,7 +282,8 @@ } Exit: - return result; + *name = result; + return error; } @@ -285,7 +291,7 @@ sfnt_find_encoding( int platform_id, int encoding_id ) { - typedef struct TEncoding + typedef struct TEncoding_ { int platform_id; int encoding_id; @@ -363,11 +369,12 @@ if ( FT_READ_ULONG( tag ) ) return error; - if ( tag != 0x00010000UL && - tag != TTAG_ttcf && - tag != FT_MAKE_TAG( 'O', 'T', 'T', 'O' ) && - tag != TTAG_true && - tag != 0x00020000UL ) + if ( tag != 0x00010000UL && + tag != TTAG_ttcf && + tag != TTAG_OTTO && + tag != TTAG_true && + tag != TTAG_typ1 && + tag != 0x00020000UL ) return SFNT_Err_Unknown_File_Format; face->ttc_header.tag = TTAG_ttcf; @@ -401,7 +408,7 @@ face->ttc_header.version = 1 << 16; face->ttc_header.count = 1; - if ( FT_NEW( face->ttc_header.offsets) ) + if ( FT_NEW( face->ttc_header.offsets ) ) return error; face->ttc_header.offsets[0] = offset; @@ -451,7 +458,7 @@ face_index = 0; if ( face_index >= face->ttc_header.count ) - return SFNT_Err_Bad_Argument; + return SFNT_Err_Invalid_Argument; if ( FT_STREAM_SEEK( face->ttc_header.offsets[face_index] ) ) return error; @@ -461,7 +468,8 @@ if ( error ) return error; - face->root.num_faces = face->ttc_header.count; + face->root.num_faces = face->ttc_header.count; + face->root.face_index = face_index; return error; } @@ -498,6 +506,13 @@ FT_TRACE3(( "\n" )); \ } while ( 0 ) +#define GET_NAME( id, field ) \ + do { \ + error = tt_face_get_name( face, TT_NAME_ID_##id, field ); \ + if ( error ) \ + goto Exit; \ + } while ( 0 ) + FT_LOCAL_DEF( FT_Error ) sfnt_load_face( FT_Stream stream, @@ -506,7 +521,10 @@ FT_Int num_params, FT_Parameter* params ) { - FT_Error error, psnames_error; + FT_Error error; +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_Error psnames_error; +#endif FT_Bool has_outline; FT_Bool is_apple_sbit; @@ -581,7 +599,10 @@ /* don't check for errors */ LOAD_( name ); LOAD_( post ); + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES psnames_error = error; +#endif /* do not load the metrics headers and tables if this is an Apple */ /* sbit font file */ @@ -660,19 +681,20 @@ face->os2.version = 0xFFFFU; } - } /* the optional tables */ - /* embedded bitmap support. */ + /* embedded bitmap support */ if ( sfnt->load_eblc ) { LOAD_( eblc ); if ( error ) { - /* return an error if this font file has no outlines */ - if ( error == SFNT_Err_Table_Missing && has_outline ) + /* a font which contains neither bitmaps nor outlines is */ + /* still valid (although rather useless in most cases); */ + /* however, you can find such stripped fonts in PDFs */ + if ( error == SFNT_Err_Table_Missing ) error = SFNT_Err_Ok; else goto Exit; @@ -692,26 +714,43 @@ LOAD_( gasp ); LOAD_( kern ); - error = SFNT_Err_Ok; - face->root.num_glyphs = face->max_profile.numGlyphs; - face->root.family_name = tt_face_get_name( face, - TT_NAME_ID_PREFERRED_FAMILY ); - if ( !face->root.family_name ) - face->root.family_name = tt_face_get_name( face, - TT_NAME_ID_FONT_FAMILY ); + /* Bit 8 of the `fsSelection' field in the `OS/2' table denotes */ + /* a WWS-only font face. `WWS' stands for `weight', width', and */ + /* `slope', a term used by Microsoft's Windows Presentation */ + /* Foundation (WPF). This flag has been introduced in version */ + /* 1.5 of the OpenType specification (May 2008). */ - face->root.style_name = tt_face_get_name( face, - TT_NAME_ID_PREFERRED_SUBFAMILY ); - if ( !face->root.style_name ) - face->root.style_name = tt_face_get_name( face, - TT_NAME_ID_FONT_SUBFAMILY ); + if ( face->os2.version != 0xFFFFU && face->os2.fsSelection & 256 ) + { + GET_NAME( PREFERRED_FAMILY, &face->root.family_name ); + if ( !face->root.family_name ) + GET_NAME( FONT_FAMILY, &face->root.family_name ); + + GET_NAME( PREFERRED_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name ) + GET_NAME( FONT_SUBFAMILY, &face->root.style_name ); + } + else + { + GET_NAME( WWS_FAMILY, &face->root.family_name ); + if ( !face->root.family_name ) + GET_NAME( PREFERRED_FAMILY, &face->root.family_name ); + if ( !face->root.family_name ) + GET_NAME( FONT_FAMILY, &face->root.family_name ); + + GET_NAME( WWS_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name ) + GET_NAME( PREFERRED_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name ) + GET_NAME( FONT_SUBFAMILY, &face->root.style_name ); + } /* now set up root fields */ { - FT_Face root = &face->root; - FT_Int32 flags = root->face_flags; + FT_Face root = &face->root; + FT_Long flags = root->face_flags; /*********************************************************************/ @@ -727,7 +766,7 @@ FT_FACE_FLAG_HORIZONTAL; /* horizontal data */ #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES - if ( psnames_error == SFNT_Err_Ok && + if ( psnames_error == SFNT_Err_Ok && face->postscript.FormatType != 0x00030000L ) flags |= FT_FACE_FLAG_GLYPH_NAMES; #endif @@ -759,19 +798,26 @@ /* */ /* Compute style flags. */ /* */ + flags = 0; if ( has_outline == TRUE && face->os2.version != 0xFFFFU ) { - /* we have an OS/2 table; use the `fsSelection' field */ - if ( face->os2.fsSelection & 1 ) + /* We have an OS/2 table; use the `fsSelection' field. Bit 9 */ + /* indicates an oblique font face. This flag has been */ + /* introduced in version 1.5 of the OpenType specification. */ + + if ( face->os2.fsSelection & 512 ) /* bit 9 */ + flags |= FT_STYLE_FLAG_ITALIC; + else if ( face->os2.fsSelection & 1 ) /* bit 0 */ flags |= FT_STYLE_FLAG_ITALIC; - if ( face->os2.fsSelection & 32 ) + if ( face->os2.fsSelection & 32 ) /* bit 5 */ flags |= FT_STYLE_FLAG_BOLD; } else { /* this is an old Mac font, use the header field */ + if ( face->header.Mac_Style & 1 ) flags |= FT_STYLE_FLAG_BOLD; @@ -816,12 +862,78 @@ } } +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + /* + * Now allocate the root array of FT_Bitmap_Size records and + * populate them. Unfortunately, it isn't possible to indicate bit + * depths in the FT_Bitmap_Size record. This is a design error. + */ + { + FT_UInt i, count; + + +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + count = face->sbit_num_strikes; +#else + count = (FT_UInt)face->num_sbit_strikes; +#endif + + if ( count > 0 ) + { + FT_Memory memory = face->root.stream->memory; + FT_UShort em_size = face->header.Units_Per_EM; + FT_Short avgwidth = face->os2.xAvgCharWidth; + FT_Size_Metrics metrics; + + + if ( em_size == 0 || face->os2.version == 0xFFFFU ) + { + avgwidth = 0; + em_size = 1; + } + + if ( FT_NEW_ARRAY( root->available_sizes, count ) ) + goto Exit; + + for ( i = 0; i < count; i++ ) + { + FT_Bitmap_Size* bsize = root->available_sizes + i; + + + error = sfnt->load_strike_metrics( face, i, &metrics ); + if ( error ) + goto Exit; + + bsize->height = (FT_Short)( metrics.height >> 6 ); + bsize->width = (FT_Short)( + ( avgwidth * metrics.x_ppem + em_size / 2 ) / em_size ); + + bsize->x_ppem = metrics.x_ppem << 6; + bsize->y_ppem = metrics.y_ppem << 6; + + /* assume 72dpi */ + bsize->size = metrics.y_ppem << 6; + } + + root->face_flags |= FT_FACE_FLAG_FIXED_SIZES; + root->num_fixed_sizes = (FT_Int)count; + } + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + /* a font with no bitmaps and no outlines is scalable; */ + /* it has only empty glyphs then */ + if ( !FT_HAS_FIXED_SIZES( root ) && !FT_IS_SCALABLE( root ) ) + root->face_flags |= FT_FACE_FLAG_SCALABLE; + /*********************************************************************/ /* */ /* Set up metrics. */ /* */ - if ( has_outline == TRUE ) + if ( FT_IS_SCALABLE( root ) ) { /* XXX What about if outline header is missing */ /* (e.g. sfnt wrapped bitmap)? */ @@ -874,10 +986,9 @@ /* this computation is based on various versions of Times New Roman */ if ( face->horizontal.Line_Gap == 0 ) root->height = (FT_Short)( ( root->height * 115 + 50 ) / 100 ); -#endif +#endif /* 0 */ #if 0 - /* some fonts have the OS/2 "sTypoAscender", "sTypoDescender" & */ /* "sTypoLineGap" fields set to 0, like ARIALNB.TTF */ if ( face->os2.version != 0xFFFFU && root->ascender ) @@ -892,80 +1003,21 @@ if ( height > root->height ) root->height = height; } - #endif /* 0 */ - root->max_advance_width = face->horizontal.advance_Width_Max; - - root->max_advance_height = (FT_Short)( face->vertical_info - ? face->vertical.advance_Height_Max - : root->height ); + root->max_advance_width = face->horizontal.advance_Width_Max; + root->max_advance_height = (FT_Short)( face->vertical_info + ? face->vertical.advance_Height_Max + : root->height ); - root->underline_position = face->postscript.underlinePosition; + /* See http://www.microsoft.com/OpenType/OTSpec/post.htm -- */ + /* Adjust underline position from top edge to centre of */ + /* stroke to convert TrueType meaning to FreeType meaning. */ + root->underline_position = face->postscript.underlinePosition - + face->postscript.underlineThickness / 2; root->underline_thickness = face->postscript.underlineThickness; } -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - - /* - * Now allocate the root array of FT_Bitmap_Size records and - * populate them. Unfortunately, it isn't possible to indicate bit - * depths in the FT_Bitmap_Size record. This is a design error. - */ - { - FT_UInt i, count; - - -#if !defined FT_CONFIG_OPTION_OLD_INTERNALS - count = face->sbit_num_strikes; -#else - count = (FT_UInt)face->num_sbit_strikes; -#endif - - if ( count > 0 ) - { - FT_Memory memory = face->root.stream->memory; - FT_UShort em_size = face->header.Units_Per_EM; - FT_Short avgwidth = face->os2.xAvgCharWidth; - FT_Size_Metrics metrics; - - - if ( em_size == 0 || face->os2.version == 0xFFFFU ) - { - avgwidth = 0; - em_size = 1; - } - - if ( FT_NEW_ARRAY( root->available_sizes, count ) ) - goto Exit; - - for ( i = 0; i < count; i++ ) - { - FT_Bitmap_Size* bsize = root->available_sizes + i; - - - error = sfnt->load_strike_metrics( face, i, &metrics ); - if ( error ) - goto Exit; - - bsize->height = (FT_Short)( metrics.height >> 6 ); - bsize->width = (FT_Short)( - ( avgwidth * metrics.x_ppem + em_size / 2 ) / em_size ); - - bsize->x_ppem = metrics.x_ppem << 6; - bsize->y_ppem = metrics.y_ppem << 6; - - /* assume 72dpi */ - bsize->size = metrics.y_ppem << 6; - } - - root->face_flags |= FT_FACE_FLAG_FIXED_SIZES; - root->num_fixed_sizes = (FT_Int)count; - } - } - -#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ - } Exit: @@ -977,14 +1029,21 @@ #undef LOAD_ #undef LOADM_ +#undef GET_NAME FT_LOCAL_DEF( void ) sfnt_done_face( TT_Face face ) { - FT_Memory memory = face->root.memory; - SFNT_Service sfnt = (SFNT_Service)face->sfnt; + FT_Memory memory; + SFNT_Service sfnt; + + if ( !face ) + return; + + memory = face->root.memory; + sfnt = (SFNT_Service)face->sfnt; if ( sfnt ) { @@ -1023,7 +1082,7 @@ } /* freeing the horizontal metrics */ -#if !defined FT_CONFIG_OPTION_OLD_INTERNALS +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS { FT_Stream stream = FT_FACE_STREAM( face ); @@ -1051,7 +1110,8 @@ face->gasp.numRanges = 0; /* freeing the name table */ - sfnt->free_name( face ); + if ( sfnt ) + sfnt->free_name( face ); /* freeing family and style name */ FT_FREE( face->root.family_name ); diff --git a/src/freetype2/sfnt/ttbdf.c b/src/freetype2/sfnt/ttbdf.c index 6c95387..206cece 100644 --- a/src/freetype2/sfnt/ttbdf.c +++ b/src/freetype2/sfnt/ttbdf.c @@ -84,7 +84,7 @@ FT_Byte* p = bdf->table; FT_UInt version = FT_NEXT_USHORT( p ); FT_UInt num_strikes = FT_NEXT_USHORT( p ); - FT_UInt32 strings = FT_NEXT_ULONG ( p ); + FT_ULong strings = FT_NEXT_ULONG ( p ); FT_UInt count; FT_Byte* strike; @@ -141,13 +141,13 @@ const char* property_name, BDF_PropertyRec *aprop ) { - TT_BDF bdf = &face->bdf; - FT_Size size = FT_FACE(face)->size; - FT_Error error = 0; - FT_Byte* p; - FT_UInt count; - FT_Byte* strike; - FT_UInt property_len; + TT_BDF bdf = &face->bdf; + FT_Size size = FT_FACE(face)->size; + FT_Error error = 0; + FT_Byte* p; + FT_UInt count; + FT_Byte* strike; + FT_Offset property_len; aprop->type = BDF_PROPERTY_TYPE_NONE; diff --git a/src/freetype2/sfnt/ttcmap.c b/src/freetype2/sfnt/ttcmap.c index 854d567..26ea83c 100644 --- a/src/freetype2/sfnt/ttcmap.c +++ b/src/freetype2/sfnt/ttcmap.c @@ -4,7 +4,7 @@ /* */ /* TrueType character mapping table (cmap) support (body). */ /* */ -/* Copyright 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -25,6 +25,7 @@ #include FT_INTERNAL_STREAM_H #include "ttload.h" #include "ttcmap.h" +#include "sfntpic.h" /*************************************************************************/ @@ -39,11 +40,13 @@ #define TT_PEEK_SHORT FT_PEEK_SHORT #define TT_PEEK_USHORT FT_PEEK_USHORT +#define TT_PEEK_UINT24 FT_PEEK_UOFF3 #define TT_PEEK_LONG FT_PEEK_LONG #define TT_PEEK_ULONG FT_PEEK_ULONG #define TT_NEXT_SHORT FT_NEXT_SHORT #define TT_NEXT_USHORT FT_NEXT_USHORT +#define TT_NEXT_UINT24 FT_NEXT_UOFF3 #define TT_NEXT_LONG FT_NEXT_LONG #define TT_NEXT_ULONG FT_NEXT_ULONG @@ -122,7 +125,7 @@ } - FT_CALLBACK_DEF( FT_UInt ) + FT_CALLBACK_DEF( FT_UInt32 ) tt_cmap0_char_next( TT_CMap cmap, FT_UInt32 *pchar_code ) { @@ -132,7 +135,7 @@ FT_UInt gindex = 0; - table += 6; /* go to glyph ids */ + table += 6; /* go to glyph IDs */ while ( ++charcode < 256 ) { gindex = table[charcode]; @@ -155,28 +158,27 @@ FT_Byte* p = cmap->data + 4; - cmap_info->format = 0; + cmap_info->format = 0; cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); return SFNT_Err_Ok; } - FT_CALLBACK_TABLE_DEF - const TT_CMap_ClassRec tt_cmap0_class_rec = - { - { + FT_DEFINE_TT_CMAP(tt_cmap0_class_rec, sizeof ( TT_CMapRec ), (FT_CMap_InitFunc) tt_cmap_init, (FT_CMap_DoneFunc) NULL, (FT_CMap_CharIndexFunc)tt_cmap0_char_index, - (FT_CMap_CharNextFunc) tt_cmap0_char_next - }, + (FT_CMap_CharNextFunc) tt_cmap0_char_next, + + NULL, NULL, NULL, NULL, NULL + , 0, (TT_CMap_ValidateFunc) tt_cmap0_validate, (TT_CMap_Info_GetFunc) tt_cmap0_get_info - }; + ) #endif /* TT_CONFIG_CMAP_FORMAT_0 */ @@ -227,7 +229,7 @@ /* language 4 USHORT Mac language code */ /* keys 6 USHORT[256] sub-header keys */ /* subs 518 SUBHEAD[NSUBS] sub-headers array */ - /* glyph_ids 518+NSUB*8 USHORT[] glyph id array */ + /* glyph_ids 518+NSUB*8 USHORT[] glyph ID array */ /* */ /* The `keys' table is used to map charcode high-bytes to sub-headers. */ /* The value of `NSUBS' is the number of sub-headers defined in the */ @@ -256,14 +258,14 @@ /* */ /* * The value of `offset' is read. This is a _byte_ distance from the */ /* location of the `offset' field itself into a slice of the */ - /* `glyph_ids' table. Let's call it `slice' (it's a USHORT[] too). */ + /* `glyph_ids' table. Let's call it `slice' (it is a USHORT[] too). */ /* */ /* * The value `slice[char.lo - first]' is read. If it is 0, there is */ /* no glyph for the charcode. Otherwise, the value of `delta' is */ /* added to it (modulo 65536) to form a new glyph index. */ /* */ /* It is up to the validation routine to check that all offsets fall */ - /* within the glyph ids table (and not within the `subs' table itself or */ + /* within the glyph IDs table (and not within the `subs' table itself or */ /* outside of the CMap). */ /* */ @@ -278,7 +280,7 @@ FT_UInt n, max_subs; FT_Byte* keys; /* keys table */ FT_Byte* subs; /* sub-headers */ - FT_Byte* glyph_ids; /* glyph id array */ + FT_Byte* glyph_ids; /* glyph ID array */ if ( table + length > valid->limit || length < 6 + 512 ) @@ -324,6 +326,10 @@ delta = TT_NEXT_SHORT( p ); offset = TT_NEXT_USHORT( p ); + /* many Dynalab fonts have empty sub-headers */ + if ( code_count == 0 ) + continue; + /* check range within 0..255 */ if ( valid->level >= FT_VALIDATE_PARANOID ) { @@ -338,7 +344,7 @@ if ( ids < glyph_ids || ids + code_count*2 > table + length ) FT_INVALID_OFFSET; - /* check glyph ids */ + /* check glyph IDs */ if ( valid->level >= FT_VALIDATE_TIGHT ) { FT_Byte* limit = p + code_count * 2; @@ -389,7 +395,7 @@ sub = subs; /* jump to first sub-header */ /* check that the sub-header for this byte is 0, which */ - /* indicates that it's really a valid one-byte value */ + /* indicates that it is really a valid one-byte value */ /* Otherwise, return 0 */ /* */ p += char_lo * 2; @@ -454,7 +460,7 @@ } - FT_CALLBACK_DEF( FT_UInt ) + FT_CALLBACK_DEF( FT_UInt32 ) tt_cmap2_char_next( TT_CMap cmap, FT_UInt32 *pcharcode ) { @@ -528,28 +534,27 @@ FT_Byte* p = cmap->data + 4; - cmap_info->format = 2; + cmap_info->format = 2; cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); return SFNT_Err_Ok; } - FT_CALLBACK_TABLE_DEF - const TT_CMap_ClassRec tt_cmap2_class_rec = - { - { + FT_DEFINE_TT_CMAP(tt_cmap2_class_rec, sizeof ( TT_CMapRec ), (FT_CMap_InitFunc) tt_cmap_init, (FT_CMap_DoneFunc) NULL, (FT_CMap_CharIndexFunc)tt_cmap2_char_index, - (FT_CMap_CharNextFunc) tt_cmap2_char_next - }, + (FT_CMap_CharNextFunc) tt_cmap2_char_next, + + NULL, NULL, NULL, NULL, NULL + , 2, (TT_CMap_ValidateFunc) tt_cmap2_validate, (TT_CMap_Info_GetFunc) tt_cmap2_get_info - }; + ) #endif /* TT_CONFIG_CMAP_FORMAT_2 */ @@ -595,14 +600,14 @@ /* each segment; can be */ /* zero */ /* */ - /* glyphIds 16+NUM_SEGS*8 USHORT[] array of glyph id */ + /* glyphIds 16+NUM_SEGS*8 USHORT[] array of glyph ID */ /* ranges */ /* */ /* Character codes are modelled by a series of ordered (increasing) */ /* intervals called segments. Each segment has start and end codes, */ /* provided by the `startCount' and `endCount' arrays. Segments must */ - /* not be overlapping and the last segment should always contain the */ - /* `0xFFFF' endCount. */ + /* not overlap, and the last segment should always contain the value */ + /* 0xFFFF for `endCount'. */ /* */ /* The fields `searchRange', `entrySelector' and `rangeShift' are better */ /* ignored (they are traces of over-engineering in the TrueType */ @@ -615,14 +620,14 @@ /* charcode within the segment is obtained by adding the value of */ /* `idDelta' directly to the charcode, modulo 65536. */ /* */ - /* Otherwise, a glyph index is taken from the glyph ids sub-array for */ + /* Otherwise, a glyph index is taken from the glyph IDs sub-array for */ /* the segment, and the value of `idDelta' is added to it. */ /* */ /* */ - /* Finally, note that certain fonts contain invalid charmaps that */ - /* contain end=0xFFFF, start=0xFFFF, delta=0x0001, offset=0xFFFF at the */ - /* of their charmaps (e.g. opens___.ttf which comes with OpenOffice.org) */ - /* we need special code to deal with them correctly... */ + /* Finally, note that a lot of fonts contain an invalid last segment, */ + /* where `start' and `end' are correctly set to 0xFFFF but both `delta' */ + /* and `offset' are incorrect (e.g., `opens___.ttf' which comes with */ + /* OpenOffice.org). We need special code to deal with them correctly. */ /* */ #ifdef TT_CONFIG_CMAP_FORMAT_4 @@ -654,7 +659,7 @@ p = table + 6; cmap->num_ranges = FT_PEEK_USHORT( p ) >> 1; - cmap->cur_charcode = 0xFFFFFFFFUL; + cmap->cur_charcode = (FT_UInt32)0xFFFFFFFFUL; cmap->cur_gindex = 0; return SFNT_Err_Ok; @@ -687,6 +692,23 @@ p += num_ranges * 2; offset = FT_PEEK_USHORT( p ); + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( range_index >= num_ranges - 1 && + cmap->cur_start == 0xFFFFU && + cmap->cur_end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + cmap->cur_delta = 1; + offset = 0; + } + } + if ( offset != 0xFFFFU ) { cmap->cur_values = offset ? p + offset : NULL; @@ -715,7 +737,7 @@ if ( cmap->cur_charcode >= 0xFFFFUL ) goto Fail; - charcode = cmap->cur_charcode + 1; + charcode = (FT_UInt)cmap->cur_charcode + 1; if ( charcode < cmap->cur_start ) charcode = cmap->cur_start; @@ -777,7 +799,7 @@ } Fail: - cmap->cur_charcode = 0xFFFFFFFFUL; + cmap->cur_charcode = (FT_UInt32)0xFFFFFFFFUL; cmap->cur_gindex = 0; } @@ -825,7 +847,7 @@ /* */ if ( valid->level >= FT_VALIDATE_PARANOID ) { - /* check the values of 'searchRange', 'entrySelector', 'rangeShift' */ + /* check the values of `searchRange', `entrySelector', `rangeShift' */ FT_UInt search_range = TT_NEXT_USHORT( p ); FT_UInt entry_selector = TT_NEXT_USHORT( p ); FT_UInt range_shift = TT_NEXT_USHORT( p ); @@ -852,7 +874,7 @@ offsets = deltas + num_segs * 2; glyph_ids = offsets + num_segs * 2; - /* check last segment, its end count must be FFFF */ + /* check last segment; its end count value must be 0xFFFF */ if ( valid->level >= FT_VALIDATE_PARANOID ) { p = ends + ( num_segs - 1 ) * 2; @@ -861,9 +883,9 @@ } { - FT_UInt start, end, offset, n; - FT_UInt last_start = 0, last_end = 0; - FT_Int delta; + FT_UInt start, end, offset, n; + FT_UInt last_start = 0, last_end = 0; + FT_Int delta; FT_Byte* p_start = starts; FT_Byte* p_end = ends; FT_Byte* p_delta = deltas; @@ -881,10 +903,10 @@ if ( start > end ) FT_INVALID_DATA; - /* this test should be performed at default validation level; */ - /* unfortunately, some popular Asian fonts present overlapping */ - /* ranges in their charmaps */ - /* */ + /* this test should be performed at default validation level; */ + /* unfortunately, some popular Asian fonts have overlapping */ + /* ranges in their charmaps */ + /* */ if ( start <= last_end && n > 0 ) { if ( valid->level >= FT_VALIDATE_TIGHT ) @@ -892,7 +914,7 @@ else { /* allow overlapping segments, provided their start points */ - /* and end points, respectively, are in ascending order. */ + /* and end points, respectively, are in ascending order */ /* */ if ( last_start > start || last_end > end ) error |= TT_CMAP_FLAG_UNSORTED; @@ -903,16 +925,27 @@ if ( offset && offset != 0xFFFFU ) { - p += offset; /* start of glyph id array */ + p += offset; /* start of glyph ID array */ - /* check that we point within the glyph ids table only */ + /* check that we point within the glyph IDs table only */ if ( valid->level >= FT_VALIDATE_TIGHT ) { if ( p < glyph_ids || p + ( end - start + 1 ) * 2 > table + length ) FT_INVALID_DATA; } - else + /* Some fonts handle the last segment incorrectly. In */ + /* theory, 0xFFFF might point to an ordinary glyph -- */ + /* a cmap 4 is versatile and could be used for any */ + /* encoding, not only Unicode. However, reality shows */ + /* that far too many fonts are sloppy and incorrectly */ + /* set all fields but `start' and `end' for the last */ + /* segment if it contains only a single character. */ + /* */ + /* We thus omit the test here, delaying it to the */ + /* routines which actually access the cmap. */ + else if ( n != num_segs - 1 || + !( start == 0xFFFFU && end == 0xFFFFU ) ) { if ( p < glyph_ids || p + ( end - start + 1 ) * 2 > valid->limit ) @@ -940,12 +973,12 @@ } else if ( offset == 0xFFFFU ) { - /* Some fonts (erroneously?) use a range offset of 0xFFFF */ + /* some fonts (erroneously?) use a range offset of 0xFFFF */ /* to mean missing glyph in cmap table */ /* */ - if ( valid->level >= FT_VALIDATE_PARANOID || - n != num_segs - 1 || - !( start == 0xFFFFU && end == 0xFFFFU && delta == 0x1U ) ) + if ( valid->level >= FT_VALIDATE_PARANOID || + n != num_segs - 1 || + !( start == 0xFFFFU && end == 0xFFFFU ) ) FT_INVALID_DATA; } @@ -959,9 +992,9 @@ static FT_UInt - tt_cmap4_char_map_linear( TT_CMap cmap, - FT_UInt* pcharcode, - FT_Bool next ) + tt_cmap4_char_map_linear( TT_CMap cmap, + FT_UInt32* pcharcode, + FT_Bool next ) { FT_UInt num_segs2, start, end, offset; FT_Int delta; @@ -1003,6 +1036,22 @@ p += num_segs2; offset = TT_PEEK_USHORT( p ); + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( i >= num_segs - 1 && + start == 0xFFFFU && end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + delta = 1; + offset = 0; + } + } + if ( offset == 0xFFFFU ) continue; @@ -1032,14 +1081,14 @@ static FT_UInt - tt_cmap4_char_map_binary( TT_CMap cmap, - FT_UInt* pcharcode, - FT_Bool next ) + tt_cmap4_char_map_binary( TT_CMap cmap, + FT_UInt32* pcharcode, + FT_Bool next ) { FT_UInt num_segs2, start, end, offset; FT_Int delta; FT_UInt max, min, mid, num_segs; - FT_UInt charcode = *pcharcode; + FT_UInt charcode = (FT_UInt)*pcharcode; FT_UInt gindex = 0; FT_Byte* p; @@ -1082,6 +1131,22 @@ p += num_segs2; offset = TT_PEEK_USHORT( p ); + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( mid >= num_segs - 1 && + start == 0xFFFFU && end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + delta = 1; + offset = 0; + } + } + /* search the first segment containing `charcode' */ if ( cmap->flags & TT_CMAP_FLAG_OVERLAPPING ) { @@ -1265,7 +1330,7 @@ } - FT_CALLBACK_DEF( FT_UInt ) + FT_CALLBACK_DEF( FT_UInt32 ) tt_cmap4_char_next( TT_CMap cmap, FT_UInt32 *pchar_code ) { @@ -1305,27 +1370,26 @@ FT_Byte* p = cmap->data + 4; - cmap_info->format = 4; + cmap_info->format = 4; cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); return SFNT_Err_Ok; } - FT_CALLBACK_TABLE_DEF - const TT_CMap_ClassRec tt_cmap4_class_rec = - { - { + FT_DEFINE_TT_CMAP(tt_cmap4_class_rec, sizeof ( TT_CMap4Rec ), (FT_CMap_InitFunc) tt_cmap4_init, (FT_CMap_DoneFunc) NULL, (FT_CMap_CharIndexFunc)tt_cmap4_char_index, - (FT_CMap_CharNextFunc) tt_cmap4_char_next - }, + (FT_CMap_CharNextFunc) tt_cmap4_char_next, + + NULL, NULL, NULL, NULL, NULL + , 4, (TT_CMap_ValidateFunc) tt_cmap4_validate, (TT_CMap_Info_GetFunc) tt_cmap4_get_info - }; + ) #endif /* TT_CONFIG_CMAP_FORMAT_4 */ @@ -1351,7 +1415,7 @@ /* */ /* first 6 USHORT first segment code */ /* count 8 USHORT segment size in chars */ - /* glyphIds 10 USHORT[count] glyph ids */ + /* glyphIds 10 USHORT[count] glyph IDs */ /* */ /* A very simplified segment mapping. */ /* */ @@ -1417,7 +1481,7 @@ } - FT_CALLBACK_DEF( FT_UInt ) + FT_CALLBACK_DEF( FT_UInt32 ) tt_cmap6_char_next( TT_CMap cmap, FT_UInt32 *pchar_code ) { @@ -1465,28 +1529,27 @@ FT_Byte* p = cmap->data + 4; - cmap_info->format = 6; + cmap_info->format = 6; cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); return SFNT_Err_Ok; } - FT_CALLBACK_TABLE_DEF - const TT_CMap_ClassRec tt_cmap6_class_rec = - { - { + FT_DEFINE_TT_CMAP(tt_cmap6_class_rec, sizeof ( TT_CMapRec ), (FT_CMap_InitFunc) tt_cmap_init, (FT_CMap_DoneFunc) NULL, (FT_CMap_CharIndexFunc)tt_cmap6_char_index, - (FT_CMap_CharNextFunc) tt_cmap6_char_next - }, + (FT_CMap_CharNextFunc) tt_cmap6_char_next, + + NULL, NULL, NULL, NULL, NULL + , 6, (TT_CMap_ValidateFunc) tt_cmap6_validate, (TT_CMap_Info_GetFunc) tt_cmap6_get_info - }; + ) #endif /* TT_CONFIG_CMAP_FORMAT_6 */ @@ -1496,7 +1559,7 @@ /***** *****/ /***** FORMAT 8 *****/ /***** *****/ - /***** It's hard to completely understand what the OpenType spec *****/ + /***** It is hard to completely understand what the OpenType spec *****/ /***** says about this format, but here is my conclusion. *****/ /***** *****/ /***** The purpose of this format is to easily map UTF-16 text to *****/ @@ -1511,7 +1574,7 @@ /***** `char_hi' and `char_lo' must be in the Surrogates Area. *****/ /***** Area. *****/ /***** *****/ - /***** The 'is32' table embedded in the charmap indicates whether a *****/ + /***** The `is32' table embedded in the charmap indicates whether a *****/ /***** given 16-bit value is in the surrogates area or not. *****/ /***** *****/ /***** So, for any given `char_code', we can assert the following: *****/ @@ -1538,11 +1601,11 @@ /* is32 12 BYTE[8192] 32-bitness bitmap */ /* count 8204 ULONG number of groups */ /* */ - /* This header is followed by 'count' groups of the following format: */ + /* This header is followed by `count' groups of the following format: */ /* */ /* start 0 ULONG first charcode */ /* end 4 ULONG last charcode */ - /* startId 8 ULONG start glyph id for the group */ + /* startId 8 ULONG start glyph ID for the group */ /* */ #ifdef TT_CONFIG_CMAP_FORMAT_8 @@ -1561,7 +1624,7 @@ FT_INVALID_TOO_SHORT; length = TT_NEXT_ULONG( p ); - if ( table + length > valid->limit || length < 8208 ) + if ( length > (FT_UInt32)( valid->limit - table ) || length < 8192 + 16 ) FT_INVALID_TOO_SHORT; is32 = table + 12; @@ -1671,7 +1734,7 @@ } - FT_CALLBACK_DEF( FT_UInt ) + FT_CALLBACK_DEF( FT_UInt32 ) tt_cmap8_char_next( TT_CMap cmap, FT_UInt32 *pchar_code ) { @@ -1719,28 +1782,27 @@ FT_Byte* p = cmap->data + 8; - cmap_info->format = 8; + cmap_info->format = 8; cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); return SFNT_Err_Ok; } - FT_CALLBACK_TABLE_DEF - const TT_CMap_ClassRec tt_cmap8_class_rec = - { - { + FT_DEFINE_TT_CMAP(tt_cmap8_class_rec, sizeof ( TT_CMapRec ), (FT_CMap_InitFunc) tt_cmap_init, (FT_CMap_DoneFunc) NULL, (FT_CMap_CharIndexFunc)tt_cmap8_char_index, - (FT_CMap_CharNextFunc) tt_cmap8_char_next - }, + (FT_CMap_CharNextFunc) tt_cmap8_char_next, + + NULL, NULL, NULL, NULL, NULL + , 8, (TT_CMap_ValidateFunc) tt_cmap8_validate, (TT_CMap_Info_GetFunc) tt_cmap8_get_info - }; + ) #endif /* TT_CONFIG_CMAP_FORMAT_8 */ @@ -1787,7 +1849,8 @@ p = table + 16; count = TT_NEXT_ULONG( p ); - if ( table + length > valid->limit || length < 20 + count * 2 ) + if ( length > (FT_ULong)( valid->limit - table ) || + length < 20 + count * 2 ) FT_INVALID_TOO_SHORT; /* check glyph indices */ @@ -1829,7 +1892,7 @@ } - FT_CALLBACK_DEF( FT_UInt ) + FT_CALLBACK_DEF( FT_UInt32 ) tt_cmap10_char_next( TT_CMap cmap, FT_UInt32 *pchar_code ) { @@ -1868,28 +1931,27 @@ FT_Byte* p = cmap->data + 8; - cmap_info->format = 10; + cmap_info->format = 10; cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); return SFNT_Err_Ok; } - FT_CALLBACK_TABLE_DEF - const TT_CMap_ClassRec tt_cmap10_class_rec = - { - { + FT_DEFINE_TT_CMAP(tt_cmap10_class_rec, sizeof ( TT_CMapRec ), (FT_CMap_InitFunc) tt_cmap_init, (FT_CMap_DoneFunc) NULL, (FT_CMap_CharIndexFunc)tt_cmap10_char_index, - (FT_CMap_CharNextFunc) tt_cmap10_char_next - }, + (FT_CMap_CharNextFunc) tt_cmap10_char_next, + + NULL, NULL, NULL, NULL, NULL + , 10, (TT_CMap_ValidateFunc) tt_cmap10_validate, (TT_CMap_Info_GetFunc) tt_cmap10_get_info - }; + ) #endif /* TT_CONFIG_CMAP_FORMAT_10 */ @@ -1920,7 +1982,7 @@ /* */ /* start 0 ULONG first charcode */ /* end 4 ULONG last charcode */ - /* startId 8 ULONG start glyph id for the group */ + /* startId 8 ULONG start glyph ID for the group */ /* */ #ifdef TT_CONFIG_CMAP_FORMAT_12 @@ -1970,7 +2032,8 @@ p = table + 12; num_groups = TT_NEXT_ULONG( p ); - if ( table + length > valid->limit || length < 16 + 12 * num_groups ) + if ( length > (FT_ULong)( valid->limit - table ) || + length < 16 + 12 * num_groups ) FT_INVALID_TOO_SHORT; /* check groups, they must be in increasing order */ @@ -2147,7 +2210,7 @@ } - FT_CALLBACK_DEF( FT_UInt ) + FT_CALLBACK_DEF( FT_UInt32 ) tt_cmap12_char_next( TT_CMap cmap, FT_UInt32 *pchar_code ) { @@ -2165,8 +2228,10 @@ if ( cmap12->valid ) { gindex = cmap12->cur_gindex; + + /* XXX: check cur_charcode overflow is expected */ if ( gindex ) - *pchar_code = cmap12->cur_charcode; + *pchar_code = (FT_UInt32)cmap12->cur_charcode; } else gindex = 0; @@ -2174,7 +2239,8 @@ else gindex = tt_cmap12_char_map_binary( cmap, pchar_code, 1 ); - return gindex; + /* XXX: check gindex overflow is expected */ + return (FT_UInt32)gindex; } @@ -2185,66 +2251,1138 @@ FT_Byte* p = cmap->data + 8; - cmap_info->format = 12; + cmap_info->format = 12; cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); return SFNT_Err_Ok; } - FT_CALLBACK_TABLE_DEF - const TT_CMap_ClassRec tt_cmap12_class_rec = - { - { + FT_DEFINE_TT_CMAP(tt_cmap12_class_rec, sizeof ( TT_CMap12Rec ), (FT_CMap_InitFunc) tt_cmap12_init, (FT_CMap_DoneFunc) NULL, (FT_CMap_CharIndexFunc)tt_cmap12_char_index, - (FT_CMap_CharNextFunc) tt_cmap12_char_next - }, + (FT_CMap_CharNextFunc) tt_cmap12_char_next, + + NULL, NULL, NULL, NULL, NULL + , 12, (TT_CMap_ValidateFunc) tt_cmap12_validate, (TT_CMap_Info_GetFunc) tt_cmap12_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_12 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 13 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 13 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* count 12 ULONG number of groups */ + /* 16 */ + /* */ + /* This header is followed by `count' groups of the following format: */ + /* */ + /* start 0 ULONG first charcode */ + /* end 4 ULONG last charcode */ + /* glyphId 8 ULONG glyph ID for the whole group */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_13 + + typedef struct TT_CMap13Rec_ + { + TT_CMapRec cmap; + FT_Bool valid; + FT_ULong cur_charcode; + FT_UInt cur_gindex; + FT_ULong cur_group; + FT_ULong num_groups; + + } TT_CMap13Rec, *TT_CMap13; + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_init( TT_CMap13 cmap, + FT_Byte* table ) + { + cmap->cmap.data = table; + + table += 12; + cmap->num_groups = FT_PEEK_ULONG( table ); + + cmap->valid = 0; + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p; + FT_ULong length; + FT_ULong num_groups; + + + if ( table + 16 > valid->limit ) + FT_INVALID_TOO_SHORT; + + p = table + 4; + length = TT_NEXT_ULONG( p ); + + p = table + 12; + num_groups = TT_NEXT_ULONG( p ); + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 16 + 12 * num_groups ) + FT_INVALID_TOO_SHORT; + + /* check groups, they must be in increasing order */ + { + FT_ULong n, start, end, glyph_id, last = 0; + + + for ( n = 0; n < num_groups; n++ ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + glyph_id = TT_NEXT_ULONG( p ); + + if ( start > end ) + FT_INVALID_DATA; + + if ( n > 0 && start <= last ) + FT_INVALID_DATA; + + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( glyph_id >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + + last = end; + } + } + + return SFNT_Err_Ok; + } + + + /* search the index of the charcode next to cmap->cur_charcode */ + /* cmap->cur_group should be set up properly by caller */ + /* */ + static void + tt_cmap13_next( TT_CMap13 cmap ) + { + FT_Byte* p; + FT_ULong start, end, glyph_id, char_code; + FT_ULong n; + FT_UInt gindex; + + + if ( cmap->cur_charcode >= 0xFFFFFFFFUL ) + goto Fail; + + char_code = cmap->cur_charcode + 1; + + n = cmap->cur_group; + + for ( n = cmap->cur_group; n < cmap->num_groups; n++ ) + { + p = cmap->cmap.data + 16 + 12 * n; + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + glyph_id = TT_PEEK_ULONG( p ); + + if ( char_code < start ) + char_code = start; + + if ( char_code <= end ) + { + gindex = (FT_UInt)glyph_id; + + if ( gindex ) + { + cmap->cur_charcode = char_code;; + cmap->cur_gindex = gindex; + cmap->cur_group = n; + + return; + } + } + } + + Fail: + cmap->valid = 0; + } + + + static FT_UInt + tt_cmap13_char_map_binary( TT_CMap cmap, + FT_UInt32* pchar_code, + FT_Bool next ) + { + FT_UInt gindex = 0; + FT_Byte* p = cmap->data + 12; + FT_UInt32 num_groups = TT_PEEK_ULONG( p ); + FT_UInt32 char_code = *pchar_code; + FT_UInt32 start, end; + FT_UInt32 max, min, mid; + + + if ( !num_groups ) + return 0; + + /* make compiler happy */ + mid = num_groups; + end = 0xFFFFFFFFUL; + + if ( next ) + char_code++; + + min = 0; + max = num_groups; + + /* binary search */ + while ( min < max ) + { + mid = ( min + max ) >> 1; + p = cmap->data + 16 + 12 * mid; + + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + max = mid; + else if ( char_code > end ) + min = mid + 1; + else + { + gindex = (FT_UInt)TT_PEEK_ULONG( p ); + + break; + } + } + + if ( next ) + { + TT_CMap13 cmap13 = (TT_CMap13)cmap; + + + /* if `char_code' is not in any group, then `mid' is */ + /* the group nearest to `char_code' */ + /* */ + + if ( char_code > end ) + { + mid++; + if ( mid == num_groups ) + return 0; + } + + cmap13->valid = 1; + cmap13->cur_charcode = char_code; + cmap13->cur_group = mid; + + if ( !gindex ) + { + tt_cmap13_next( cmap13 ); + + if ( cmap13->valid ) + gindex = cmap13->cur_gindex; + } + else + cmap13->cur_gindex = gindex; + + if ( gindex ) + *pchar_code = cmap13->cur_charcode; + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap13_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + return tt_cmap13_char_map_binary( cmap, &char_code, 0 ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap13_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + TT_CMap13 cmap13 = (TT_CMap13)cmap; + FT_UInt gindex; + + + if ( cmap13->cur_charcode >= 0xFFFFFFFFUL ) + return 0; + + /* no need to search */ + if ( cmap13->valid && cmap13->cur_charcode == *pchar_code ) + { + tt_cmap13_next( cmap13 ); + if ( cmap13->valid ) + { + gindex = cmap13->cur_gindex; + if ( gindex ) + *pchar_code = cmap13->cur_charcode; + } + else + gindex = 0; + } + else + gindex = tt_cmap13_char_map_binary( cmap, pchar_code, 1 ); + + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 13; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_TABLE_DEF + const TT_CMap_ClassRec tt_cmap13_class_rec = + { + { + sizeof ( TT_CMap13Rec ), + + (FT_CMap_InitFunc) tt_cmap13_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap13_char_index, + (FT_CMap_CharNextFunc) tt_cmap13_char_next, + + NULL, NULL, NULL, NULL, NULL + }, + 13, + (TT_CMap_ValidateFunc) tt_cmap13_validate, + (TT_CMap_Info_GetFunc) tt_cmap13_get_info }; +#endif /* TT_CONFIG_CMAP_FORMAT_13 */ -#endif /* TT_CONFIG_CMAP_FORMAT_12 */ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 14 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ - static const TT_CMap_Class tt_cmap_classes[] = + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 14 */ + /* length 2 ULONG table length in bytes */ + /* numSelector 6 ULONG number of variation sel. records */ + /* */ + /* Followed by numSelector records, each of which looks like */ + /* */ + /* varSelector 0 UINT24 Unicode codepoint of sel. */ + /* defaultOff 3 ULONG offset to a default UVS table */ + /* describing any variants to be found in */ + /* the normal Unicode subtable. */ + /* nonDefOff 7 ULONG offset to a non-default UVS table */ + /* describing any variants not in the */ + /* standard cmap, with GIDs here */ + /* (either offset may be 0 NULL) */ + /* */ + /* Selectors are sorted by code point. */ + /* */ + /* A default Unicode Variation Selector (UVS) subtable is just a list of */ + /* ranges of code points which are to be found in the standard cmap. No */ + /* glyph IDs (GIDs) here. */ + /* */ + /* numRanges 0 ULONG number of ranges following */ + /* */ + /* A range looks like */ + /* */ + /* uniStart 0 UINT24 code point of the first character in */ + /* this range */ + /* additionalCnt 3 UBYTE count of additional characters in this */ + /* range (zero means a range of a single */ + /* character) */ + /* */ + /* Ranges are sorted by `uniStart'. */ + /* */ + /* A non-default Unicode Variation Selector (UVS) subtable is a list of */ + /* mappings from codepoint to GID. */ + /* */ + /* numMappings 0 ULONG number of mappings */ + /* */ + /* A range looks like */ + /* */ + /* uniStart 0 UINT24 code point of the first character in */ + /* this range */ + /* GID 3 USHORT and its GID */ + /* */ + /* Ranges are sorted by `uniStart'. */ + +#ifdef TT_CONFIG_CMAP_FORMAT_14 + + typedef struct TT_CMap14Rec_ { -#ifdef TT_CONFIG_CMAP_FORMAT_0 - &tt_cmap0_class_rec, -#endif + TT_CMapRec cmap; + FT_ULong num_selectors; -#ifdef TT_CONFIG_CMAP_FORMAT_2 - &tt_cmap2_class_rec, -#endif + /* This array is used to store the results of various + * cmap 14 query functions. The data is overwritten + * on each call to these functions. + */ + FT_UInt32 max_results; + FT_UInt32* results; + FT_Memory memory; -#ifdef TT_CONFIG_CMAP_FORMAT_4 - &tt_cmap4_class_rec, -#endif + } TT_CMap14Rec, *TT_CMap14; -#ifdef TT_CONFIG_CMAP_FORMAT_6 - &tt_cmap6_class_rec, -#endif -#ifdef TT_CONFIG_CMAP_FORMAT_8 - &tt_cmap8_class_rec, -#endif + FT_CALLBACK_DEF( void ) + tt_cmap14_done( TT_CMap14 cmap ) + { + FT_Memory memory = cmap->memory; -#ifdef TT_CONFIG_CMAP_FORMAT_10 - &tt_cmap10_class_rec, -#endif -#ifdef TT_CONFIG_CMAP_FORMAT_12 - &tt_cmap12_class_rec, -#endif + cmap->max_results = 0; + if ( memory != NULL && cmap->results != NULL ) + FT_FREE( cmap->results ); + } + + + static FT_Error + tt_cmap14_ensure( TT_CMap14 cmap, + FT_UInt32 num_results, + FT_Memory memory ) + { + FT_UInt32 old_max = cmap->max_results; + FT_Error error = 0; + + + if ( num_results > cmap->max_results ) + { + cmap->memory = memory; + + if ( FT_QRENEW_ARRAY( cmap->results, old_max, num_results ) ) + return error; + + cmap->max_results = num_results; + } + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_init( TT_CMap14 cmap, + FT_Byte* table ) + { + cmap->cmap.data = table; + + table += 6; + cmap->num_selectors = FT_PEEK_ULONG( table ); + cmap->max_results = 0; + cmap->results = NULL; + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; + FT_ULong length = TT_NEXT_ULONG( p ); + FT_ULong num_selectors = TT_NEXT_ULONG( p ); + + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 10 + 11 * num_selectors ) + FT_INVALID_TOO_SHORT; + + /* check selectors, they must be in increasing order */ + { + /* we start lastVarSel at 1 because a variant selector value of 0 + * isn't valid. + */ + FT_ULong n, lastVarSel = 1; + + + for ( n = 0; n < num_selectors; n++ ) + { + FT_ULong varSel = TT_NEXT_UINT24( p ); + FT_ULong defOff = TT_NEXT_ULONG( p ); + FT_ULong nondefOff = TT_NEXT_ULONG( p ); + + + if ( defOff >= length || nondefOff >= length ) + FT_INVALID_TOO_SHORT; + + if ( varSel < lastVarSel ) + FT_INVALID_DATA; + + lastVarSel = varSel + 1; + + /* check the default table (these glyphs should be reached */ + /* through the normal Unicode cmap, no GIDs, just check order) */ + if ( defOff != 0 ) + { + FT_Byte* defp = table + defOff; + FT_ULong numRanges = TT_NEXT_ULONG( defp ); + FT_ULong i; + FT_ULong lastBase = 0; + + + if ( defp + numRanges * 4 > valid->limit ) + FT_INVALID_TOO_SHORT; + + for ( i = 0; i < numRanges; ++i ) + { + FT_ULong base = TT_NEXT_UINT24( defp ); + FT_ULong cnt = FT_NEXT_BYTE( defp ); + + + if ( base + cnt >= 0x110000UL ) /* end of Unicode */ + FT_INVALID_DATA; + + if ( base < lastBase ) + FT_INVALID_DATA; + + lastBase = base + cnt + 1U; + } + } + + /* and the non-default table (these glyphs are specified here) */ + if ( nondefOff != 0 ) { + FT_Byte* ndp = table + nondefOff; + FT_ULong numMappings = TT_NEXT_ULONG( ndp ); + FT_ULong i, lastUni = 0; + + + if ( numMappings * 4 > (FT_ULong)( valid->limit - ndp ) ) + FT_INVALID_TOO_SHORT; + + for ( i = 0; i < numMappings; ++i ) + { + FT_ULong uni = TT_NEXT_UINT24( ndp ); + FT_ULong gid = TT_NEXT_USHORT( ndp ); + + + if ( uni >= 0x110000UL ) /* end of Unicode */ + FT_INVALID_DATA; + + if ( uni < lastUni ) + FT_INVALID_DATA; + + lastUni = uni + 1U; + + if ( valid->level >= FT_VALIDATE_TIGHT && + gid >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap14_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_UNUSED( cmap ); + FT_UNUSED( char_code ); + + /* This can't happen */ + return 0; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap14_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UNUSED( cmap ); + + /* This can't happen */ + *pchar_code = 0; + return 0; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_UNUSED( cmap ); + + cmap_info->format = 14; + /* subtable 14 does not define a language field */ + cmap_info->language = 0xFFFFFFFFUL; + + return SFNT_Err_Ok; + } + + + static FT_UInt + tt_cmap14_char_map_def_binary( FT_Byte *base, + FT_UInt32 char_code ) + { + FT_UInt32 numRanges = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numRanges; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 4 * mid; + FT_ULong start = TT_NEXT_UINT24( p ); + FT_UInt cnt = FT_NEXT_BYTE( p ); + + + if ( char_code < start ) + max = mid; + else if ( char_code > start+cnt ) + min = mid + 1; + else + return TRUE; + } + + return FALSE; + } + + + static FT_UInt + tt_cmap14_char_map_nondef_binary( FT_Byte *base, + FT_UInt32 char_code ) + { + FT_UInt32 numMappings = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numMappings; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 5 * mid; + FT_UInt32 uni = (FT_UInt32)TT_NEXT_UINT24( p ); + + + if ( char_code < uni ) + max = mid; + else if ( char_code > uni ) + min = mid + 1; + else + return TT_PEEK_USHORT( p ); + } + + return 0; + } + + + static FT_Byte* + tt_cmap14_find_variant( FT_Byte *base, + FT_UInt32 variantCode ) + { + FT_UInt32 numVar = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numVar; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 11 * mid; + FT_ULong varSel = TT_NEXT_UINT24( p ); + + + if ( variantCode < varSel ) + max = mid; + else if ( variantCode > varSel ) + min = mid + 1; + else + return p; + } + + return NULL; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap14_char_var_index( TT_CMap cmap, + TT_CMap ucmap, + FT_UInt32 charcode, + FT_UInt32 variantSelector) + { + FT_Byte* p = tt_cmap14_find_variant( cmap->data + 6, variantSelector ); + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return 0; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_PEEK_ULONG( p ); + + if ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, charcode ) ) + { + /* This is the default variant of this charcode. GID not stored */ + /* here; stored in the normal Unicode charmap instead. */ + return ucmap->cmap.clazz->char_index( &ucmap->cmap, charcode ); + } + + if ( nondefOff != 0 ) + return tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charcode ); + + return 0; + } + + + FT_CALLBACK_DEF( FT_Int ) + tt_cmap14_char_var_isdefault( TT_CMap cmap, + FT_UInt32 charcode, + FT_UInt32 variantSelector ) + { + FT_Byte* p = tt_cmap14_find_variant( cmap->data + 6, variantSelector ); + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return -1; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_NEXT_ULONG( p ); + + if ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, charcode ) ) + return 1; + + if ( nondefOff != 0 && + tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charcode ) != 0 ) + return 0; + + return -1; + } + + + FT_CALLBACK_DEF( FT_UInt32* ) + tt_cmap14_variants( TT_CMap cmap, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14)cmap; + FT_UInt32 count = cmap14->num_selectors; + FT_Byte* p = cmap->data + 10; + FT_UInt32* result; + FT_UInt32 i; + + + if ( tt_cmap14_ensure( cmap14, ( count + 1 ), memory ) ) + return NULL; + + result = cmap14->results; + for ( i = 0; i < count; ++i ) + { + result[i] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 8; + } + result[i] = 0; + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 * ) + tt_cmap14_char_variants( TT_CMap cmap, + FT_Memory memory, + FT_UInt32 charCode ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 count = cmap14->num_selectors; + FT_Byte* p = cmap->data + 10; + FT_UInt32* q; + + + if ( tt_cmap14_ensure( cmap14, ( count + 1 ), memory ) ) + return NULL; + + for ( q = cmap14->results; count > 0; --count ) + { + FT_UInt32 varSel = TT_NEXT_UINT24( p ); + FT_ULong defOff = TT_NEXT_ULONG( p ); + FT_ULong nondefOff = TT_NEXT_ULONG( p ); + + + if ( ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, + charCode ) ) || + ( nondefOff != 0 && + tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charCode ) != 0 ) ) + { + q[0] = varSel; + q++; + } + } + q[0] = 0; + + return cmap14->results; + } + + + static FT_UInt + tt_cmap14_def_char_count( FT_Byte *p ) + { + FT_UInt32 numRanges = (FT_UInt32)TT_NEXT_ULONG( p ); + FT_UInt tot = 0; + + + p += 3; /* point to the first `cnt' field */ + for ( ; numRanges > 0; numRanges-- ) + { + tot += 1 + p[0]; + p += 4; + } + + return tot; + } + + + static FT_UInt32* + tt_cmap14_get_def_chars( TT_CMap cmap, + FT_Byte* p, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numRanges; + FT_UInt cnt; + FT_UInt32* q; + + + cnt = tt_cmap14_def_char_count( p ); + numRanges = (FT_UInt32)TT_NEXT_ULONG( p ); + + if ( tt_cmap14_ensure( cmap14, ( cnt + 1 ), memory ) ) + return NULL; + + for ( q = cmap14->results; numRanges > 0; --numRanges ) + { + FT_UInt32 uni = (FT_UInt32)TT_NEXT_UINT24( p ); + + + cnt = FT_NEXT_BYTE( p ) + 1; + do + { + q[0] = uni; + uni += 1; + q += 1; + } while ( --cnt != 0 ); + } + q[0] = 0; + + return cmap14->results; + } + + static FT_UInt32* + tt_cmap14_get_nondef_chars( TT_CMap cmap, + FT_Byte *p, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numMappings; + FT_UInt i; + FT_UInt32 *ret; + + + numMappings = (FT_UInt32)TT_NEXT_ULONG( p ); + + if ( tt_cmap14_ensure( cmap14, ( numMappings + 1 ), memory ) ) + return NULL; + + ret = cmap14->results; + for ( i = 0; i < numMappings; ++i ) + { + ret[i] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + } + ret[i] = 0; + + return ret; + } + + + FT_CALLBACK_DEF( FT_UInt32 * ) + tt_cmap14_variant_chars( TT_CMap cmap, + FT_Memory memory, + FT_UInt32 variantSelector ) + { + FT_Byte *p = tt_cmap14_find_variant( cmap->data + 6, + variantSelector ); + FT_UInt32 *ret; + FT_Int i; + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return NULL; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_NEXT_ULONG( p ); + + if ( defOff == 0 && nondefOff == 0 ) + return NULL; + + if ( defOff == 0 ) + return tt_cmap14_get_nondef_chars( cmap, cmap->data + nondefOff, + memory ); + else if ( nondefOff == 0 ) + return tt_cmap14_get_def_chars( cmap, cmap->data + defOff, + memory ); + else + { + /* Both a default and a non-default glyph set? That's probably not */ + /* good font design, but the spec allows for it... */ + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numRanges; + FT_UInt32 numMappings; + FT_UInt32 duni; + FT_UInt32 dcnt; + FT_UInt32 nuni; + FT_Byte* dp; + FT_UInt di, ni, k; + + + p = cmap->data + nondefOff; + dp = cmap->data + defOff; + + numMappings = (FT_UInt32)TT_NEXT_ULONG( p ); + dcnt = tt_cmap14_def_char_count( dp ); + numRanges = (FT_UInt32)TT_NEXT_ULONG( dp ); + + if ( numMappings == 0 ) + return tt_cmap14_get_def_chars( cmap, cmap->data + defOff, + memory ); + if ( dcnt == 0 ) + return tt_cmap14_get_nondef_chars( cmap, cmap->data + nondefOff, + memory ); + + if ( tt_cmap14_ensure( cmap14, ( dcnt + numMappings + 1 ), memory ) ) + return NULL; + + ret = cmap14->results; + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + di = 1; + nuni = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + ni = 1; + i = 0; + + for ( ;; ) + { + if ( nuni > duni + dcnt ) + { + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + + ++di; + + if ( di > numRanges ) + break; + + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + } + else + { + if ( nuni < duni ) + ret[i++] = nuni; + /* If it is within the default range then ignore it -- */ + /* that should not have happened */ + ++ni; + if ( ni > numMappings ) + break; + + nuni = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + } + } + + if ( ni <= numMappings ) + { + /* If we get here then we have run out of all default ranges. */ + /* We have read one non-default mapping which we haven't stored */ + /* and there may be others that need to be read. */ + ret[i++] = nuni; + while ( ni < numMappings ) + { + ret[i++] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + ++ni; + } + } + else if ( di <= numRanges ) + { + /* If we get here then we have run out of all non-default */ + /* mappings. We have read one default range which we haven't */ + /* stored and there may be others that need to be read. */ + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + + while ( di < numRanges ) + { + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + ++di; + } + } + + ret[i] = 0; + + return ret; + } + } + + + FT_DEFINE_TT_CMAP(tt_cmap14_class_rec, + sizeof ( TT_CMap14Rec ), + + (FT_CMap_InitFunc) tt_cmap14_init, + (FT_CMap_DoneFunc) tt_cmap14_done, + (FT_CMap_CharIndexFunc)tt_cmap14_char_index, + (FT_CMap_CharNextFunc) tt_cmap14_char_next, + + /* Format 14 extension functions */ + (FT_CMap_CharVarIndexFunc) tt_cmap14_char_var_index, + (FT_CMap_CharVarIsDefaultFunc)tt_cmap14_char_var_isdefault, + (FT_CMap_VariantListFunc) tt_cmap14_variants, + (FT_CMap_CharVariantListFunc) tt_cmap14_char_variants, + (FT_CMap_VariantCharListFunc) tt_cmap14_variant_chars + , + 14, + (TT_CMap_ValidateFunc)tt_cmap14_validate, + (TT_CMap_Info_GetFunc)tt_cmap14_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_14 */ + + +#ifndef FT_CONFIG_OPTION_PIC + + static const TT_CMap_Class tt_cmap_classes[] = + { +#define TTCMAPCITEM(a) &a, +#include "ttcmapc.h" NULL, }; +#else /*FT_CONFIG_OPTION_PIC*/ + + void FT_Destroy_Class_tt_cmap_classes(FT_Library library, TT_CMap_Class* clazz) + { + FT_Memory memory = library->memory; + if ( clazz ) + FT_FREE( clazz ); + } + + FT_Error FT_Create_Class_tt_cmap_classes(FT_Library library, TT_CMap_Class** output_class) + { + TT_CMap_Class* clazz; + TT_CMap_ClassRec* recs; + FT_Error error; + FT_Memory memory = library->memory; + int i = 0; + +#define TTCMAPCITEM(a) i++; +#include "ttcmapc.h" + + /* allocate enough space for both the pointers +terminator and the class instances */ + if ( FT_ALLOC( clazz, sizeof(*clazz)*(i+1)+sizeof(TT_CMap_ClassRec)*i ) ) + return error; + + /* the location of the class instances follows the array of pointers */ + recs = (TT_CMap_ClassRec*) (((char*)clazz)+(sizeof(*clazz)*(i+1))); + i=0; + +#undef TTCMAPCITEM +#define TTCMAPCITEM(a) \ + FT_Init_Class_##a(&recs[i]); \ + clazz[i] = &recs[i]; \ + i++; +#include "ttcmapc.h" + + clazz[i] = NULL; + + *output_class = clazz; + return FT_Err_Ok; + } + +#endif /*FT_CONFIG_OPTION_PIC*/ + /* parse the `cmap' table and build the corresponding TT_CMap objects */ /* in the current face */ @@ -2256,6 +3394,8 @@ FT_Byte* limit = table + face->cmap_size; FT_UInt volatile num_cmaps; FT_Byte* volatile p = table; + FT_Library library = FT_FACE_LIBRARY(face); + FT_UNUSED(library); if ( p + 4 > limit ) @@ -2265,7 +3405,8 @@ if ( TT_NEXT_USHORT( p ) != 0 ) { p -= 2; - FT_ERROR(( "tt_face_build_cmaps: unsupported `cmap' table format = %d\n", + FT_ERROR(( "tt_face_build_cmaps:" + " unsupported `cmap' table format = %d\n", TT_PEEK_USHORT( p ) )); return SFNT_Err_Invalid_Table; } @@ -2288,7 +3429,7 @@ { FT_Byte* volatile cmap = table + offset; volatile FT_UInt format = TT_PEEK_USHORT( cmap ); - const TT_CMap_Class* volatile pclazz = tt_cmap_classes; + const TT_CMap_Class* volatile pclazz = FT_TT_CMAP_CLASSES_GET; TT_CMap_Class volatile clazz; @@ -2318,6 +3459,10 @@ FT_CMap ttcmap; + /* It might make sense to store the single variation selector */ + /* cmap somewhere special. But it would have to be in the */ + /* public FT_FaceRec, and we can't change that. */ + if ( !FT_CMap_New( (FT_CMap_Class)clazz, cmap, &charmap, &ttcmap ) ) { @@ -2328,12 +3473,18 @@ } else { - FT_ERROR(( "tt_face_build_cmaps:" )); - FT_ERROR(( " broken cmap sub-table ignored!\n" )); + FT_TRACE0(( "tt_face_build_cmaps:" + " broken cmap sub-table ignored\n" )); } break; } } + + if ( *pclazz == NULL ) + { + FT_TRACE0(( "tt_face_build_cmaps:" + " unsupported cmap sub-table ignored\n" )); + } } } diff --git a/src/freetype2/sfnt/ttcmap.h b/src/freetype2/sfnt/ttcmap.h index a10a3e2..15a4a21 100644 --- a/src/freetype2/sfnt/ttcmap.h +++ b/src/freetype2/sfnt/ttcmap.h @@ -55,6 +55,46 @@ FT_BEGIN_HEADER } TT_CMap_ClassRec; +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_,variantchar_list_, \ + format_, validate_, get_cmap_info_) \ + FT_CALLBACK_TABLE_DEF \ + const TT_CMap_ClassRec class_ = \ + { \ + {size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_, variantchar_list_}, \ + format_, validate_, get_cmap_info_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_,variantchar_list_, \ + format_, validate_, get_cmap_info_) \ + void \ + FT_Init_Class_##class_( TT_CMap_ClassRec* clazz ) \ + { \ + clazz->clazz.size = size_; \ + clazz->clazz.init = init_; \ + clazz->clazz.done = done_; \ + clazz->clazz.char_index = char_index_; \ + clazz->clazz.char_next = char_next_; \ + clazz->clazz.char_var_index = char_var_index_; \ + clazz->clazz.char_var_default = char_var_default_; \ + clazz->clazz.variant_list = variant_list_; \ + clazz->clazz.charvariant_list = charvariant_list_; \ + clazz->clazz.variantchar_list = variantchar_list_; \ + clazz->format = format_; \ + clazz->validate = validate_; \ + clazz->get_cmap_info = get_cmap_info_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ typedef struct TT_ValidatorRec_ { diff --git a/src/freetype2/sfnt/ttcmapc.h b/src/freetype2/sfnt/ttcmapc.h new file mode 100644 index 0000000..4c9c6a5 --- /dev/null +++ b/src/freetype2/sfnt/ttcmapc.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* ttcmapc.h */ +/* */ +/* TT CMAP classes definitions (specification only). */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* 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. */ +/* */ +/***************************************************************************/ + + +#ifdef TT_CONFIG_CMAP_FORMAT_0 + TTCMAPCITEM(tt_cmap0_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_2 + TTCMAPCITEM(tt_cmap2_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_4 + TTCMAPCITEM(tt_cmap4_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_6 + TTCMAPCITEM(tt_cmap6_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_8 + TTCMAPCITEM(tt_cmap8_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_10 + TTCMAPCITEM(tt_cmap10_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_12 + TTCMAPCITEM(tt_cmap12_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_13 + TTCMAPCITEM(tt_cmap13_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_14 + TTCMAPCITEM(tt_cmap14_class_rec) +#endif + + /* END */ diff --git a/src/freetype2/sfnt/ttkern.c b/src/freetype2/sfnt/ttkern.c index 28e52c3..c154080 100644 --- a/src/freetype2/sfnt/ttkern.c +++ b/src/freetype2/sfnt/ttkern.c @@ -5,7 +5,7 @@ /* Load the basic TrueType kerning table. This doesn't handle */ /* kerning data within the GPOS table at the moment. */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -22,7 +22,6 @@ #include FT_INTERNAL_STREAM_H #include FT_TRUETYPE_TAGS_H #include "ttkern.h" -#include "ttload.h" #include "sferrors.h" @@ -60,14 +59,16 @@ if ( table_size < 4 ) /* the case of a malformed table */ { - FT_ERROR(( "kerning table is too small - ignored\n" )); + FT_ERROR(( "tt_face_load_kern:" + " kerning table is too small - ignored\n" )); error = SFNT_Err_Table_Missing; goto Exit; } if ( FT_FRAME_EXTRACT( table_size, face->kern_table ) ) { - FT_ERROR(( "could not extract kerning table\n" )); + FT_ERROR(( "tt_face_load_kern:" + " could not extract kerning table\n" )); goto Exit; } @@ -86,7 +87,7 @@ { FT_UInt num_pairs, length, coverage; FT_Byte* p_next; - FT_UInt32 mask = 1UL << nn; + FT_UInt32 mask = (FT_UInt32)1UL << nn; if ( p + 6 > p_limit ) @@ -103,6 +104,9 @@ p_next += length; + if ( p_next > p_limit ) /* handle broken table */ + p_next = p_limit; + /* only use horizontal kerning tables */ if ( ( coverage & ~8 ) != 0x0001 || p + 8 > p_limit ) @@ -111,8 +115,8 @@ num_pairs = FT_NEXT_USHORT( p ); p += 6; - if ( p + 6 * num_pairs > p_limit ) - goto NextTable; + if ( ( p_next - p ) / 6 < (int)num_pairs ) /* handle broken count */ + num_pairs = (FT_UInt)( ( p_next - p ) / 6 ); avail |= mask; @@ -122,8 +126,8 @@ */ if ( num_pairs > 0 ) { - FT_UInt count; - FT_UInt old_pair; + FT_ULong count; + FT_ULong old_pair; old_pair = FT_NEXT_ULONG( p ); @@ -181,18 +185,22 @@ FT_Int result = 0; FT_UInt count, mask = 1; FT_Byte* p = face->kern_table; + FT_Byte* p_limit = p + face->kern_table_size; p += 4; mask = 0x0001; - for ( count = face->num_kern_tables; count > 0; count--, mask <<= 1 ) + for ( count = face->num_kern_tables; + count > 0 && p + 6 <= p_limit; + count--, mask <<= 1 ) { FT_Byte* base = p; FT_Byte* next = base; FT_UInt version = FT_NEXT_USHORT( p ); FT_UInt length = FT_NEXT_USHORT( p ); FT_UInt coverage = FT_NEXT_USHORT( p ); + FT_UInt num_pairs; FT_Int value = 0; FT_UNUSED( version ); @@ -200,21 +208,27 @@ next = base + length; + if ( next > p_limit ) /* handle broken table */ + next = p_limit; + if ( ( face->kern_avail_bits & mask ) == 0 ) goto NextTable; if ( p + 8 > next ) goto NextTable; + num_pairs = FT_NEXT_USHORT( p ); + p += 6; + + if ( ( next - p ) / 6 < (int)num_pairs ) /* handle broken count */ + num_pairs = (FT_UInt)( ( next - p ) / 6 ); + switch ( coverage >> 8 ) { case 0: { - FT_UInt num_pairs = FT_NEXT_USHORT( p ); - FT_ULong key0 = TT_KERN_INDEX( left_glyph, right_glyph ); - + FT_ULong key0 = TT_KERN_INDEX( left_glyph, right_glyph ); - p += 6; if ( face->kern_order_bits & mask ) /* binary search */ { diff --git a/src/freetype2/sfnt/ttload.c b/src/freetype2/sfnt/ttload.c index abe0278..f08f640 100644 --- a/src/freetype2/sfnt/ttload.c +++ b/src/freetype2/sfnt/ttload.c @@ -5,7 +5,7 @@ /* Load the basic TrueType tables, i.e., tables that can be either in */ /* TTF or OTF fonts (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -58,6 +58,9 @@ { TT_Table entry; TT_Table limit; +#ifdef FT_DEBUG_LEVEL_TRACE + FT_Bool zero_length = FALSE; +#endif FT_TRACE4(( "tt_face_lookup_table: %08p, `%c%c%c%c' -- ", @@ -72,17 +75,28 @@ for ( ; entry < limit; entry++ ) { - /* For compatibility with Windows, we consider 0-length */ - /* tables the same as missing tables. */ - if ( entry->Tag == tag && entry->Length != 0 ) - { - FT_TRACE4(( "found table.\n" )); - return entry; + /* For compatibility with Windows, we consider */ + /* zero-length tables the same as missing tables. */ + if ( entry->Tag == tag ) { + if ( entry->Length != 0 ) + { + FT_TRACE4(( "found table.\n" )); + return entry; + } +#ifdef FT_DEBUG_LEVEL_TRACE + zero_length = TRUE; +#endif } } - FT_TRACE4(( "could not find table!\n" )); - return 0; +#ifdef FT_DEBUG_LEVEL_TRACE + if ( zero_length ) + FT_TRACE4(( "ignoring empty table\n" )); + else + FT_TRACE4(( "could not find table\n" )); +#endif + + return NULL; } @@ -124,7 +138,7 @@ *length = table->Length; if ( FT_STREAM_SEEK( table->Offset ) ) - goto Exit; + goto Exit; } else error = SFNT_Err_Table_Missing; @@ -134,27 +148,30 @@ } - /* Here, we */ - /* */ - /* - check that `num_tables' is valid */ - /* - look for a `head' table, check its size, and parse it to check */ - /* whether its `magic' field is correctly set */ - /* */ - /* When checking directory entries, ignore the tables `glyx' and `locx' */ - /* which are hacked-out versions of `glyf' and `loca' in some PostScript */ - /* Type 42 fonts, and which are generally invalid. */ - /* */ + /* Here, we */ + /* */ + /* - check that `num_tables' is valid (and adjust it if necessary) */ + /* */ + /* - look for a `head' table, check its size, and parse it to check */ + /* whether its `magic' field is correctly set */ + /* */ + /* - errors (except errors returned by stream handling) */ + /* */ + /* SFNT_Err_Unknown_File_Format: */ + /* no table is defined in directory, it is not sfnt-wrapped */ + /* data */ + /* SFNT_Err_Table_Missing: */ + /* table directory is valid, but essential tables */ + /* (head/bhed/SING) are missing */ + /* */ static FT_Error check_table_dir( SFNT_Header sfnt, FT_Stream stream ) { - FT_Error error; - FT_UInt nn; - FT_UInt has_head = 0, has_sing = 0, has_meta = 0; - FT_ULong offset = sfnt->offset + 12; - - const FT_ULong glyx_tag = FT_MAKE_TAG( 'g', 'l', 'y', 'x' ); - const FT_ULong locx_tag = FT_MAKE_TAG( 'l', 'o', 'c', 'x' ); + FT_Error error; + FT_UInt nn, valid_entries = 0; + FT_UInt has_head = 0, has_sing = 0, has_meta = 0; + FT_ULong offset = sfnt->offset + 12; static const FT_Frame_Field table_dir_entry_fields[] = { @@ -170,12 +187,8 @@ }; - if ( sfnt->num_tables == 0 || - offset + sfnt->num_tables * 16 > stream->size ) - return SFNT_Err_Unknown_File_Format; - if ( FT_STREAM_SEEK( offset ) ) - return error; + goto Exit; for ( nn = 0; nn < sfnt->num_tables; nn++ ) { @@ -183,12 +196,23 @@ if ( FT_STREAM_READ_FIELDS( table_dir_entry_fields, &table ) ) - return error; + { + nn--; + FT_TRACE2(( "check_table_dir:" + " can read only %d table%s in font (instead of %d)\n", + nn, nn == 1 ? "" : "s", sfnt->num_tables )); + sfnt->num_tables = nn; + break; + } - if ( table.Offset + table.Length > stream->size && - table.Tag != glyx_tag && - table.Tag != locx_tag ) - return SFNT_Err_Unknown_File_Format; + /* we ignore invalid tables */ + if ( table.Offset + table.Length > stream->size ) + { + FT_TRACE2(( "check_table_dir: table entry %d invalid\n", nn )); + continue; + } + else + valid_entries++; if ( table.Tag == TTAG_head || table.Tag == TTAG_bhed ) { @@ -210,17 +234,26 @@ * */ if ( table.Length < 0x36 ) - return SFNT_Err_Unknown_File_Format; + { + FT_TRACE2(( "check_table_dir: `head' table too small\n" )); + error = SFNT_Err_Table_Missing; + goto Exit; + } if ( FT_STREAM_SEEK( table.Offset + 12 ) || FT_READ_ULONG( magic ) ) - return error; + goto Exit; if ( magic != 0x5F0F3CF5UL ) - return SFNT_Err_Unknown_File_Format; + { + FT_TRACE2(( "check_table_dir:" + " no magic number found in `head' table\n")); + error = SFNT_Err_Table_Missing; + goto Exit; + } if ( FT_STREAM_SEEK( offset + ( nn + 1 ) * 16 ) ) - return error; + goto Exit; } else if ( table.Tag == TTAG_SING ) has_sing = 1; @@ -228,11 +261,34 @@ has_meta = 1; } + sfnt->num_tables = valid_entries; + + if ( sfnt->num_tables == 0 ) + { + FT_TRACE2(( "check_table_dir: no tables found\n" )); + error = SFNT_Err_Unknown_File_Format; + goto Exit; + } + /* if `sing' and `meta' tables are present, there is no `head' table */ if ( has_head || ( has_sing && has_meta ) ) - return SFNT_Err_Ok; + { + error = SFNT_Err_Ok; + goto Exit; + } else - return SFNT_Err_Unknown_File_Format; + { + FT_TRACE2(( "check_table_dir:" )); +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + FT_TRACE2(( " neither `head', `bhed', nor `sing' table found\n" )); +#else + FT_TRACE2(( " neither `head' nor `sing' table found\n" )); +#endif + error = SFNT_Err_Table_Missing; + } + + Exit: + return error; } @@ -266,7 +322,7 @@ FT_Error error; FT_Memory memory = stream->memory; TT_TableRec* entry; - TT_TableRec* limit; + FT_Int nn; static const FT_Frame_Field offset_table_fields[] = { @@ -290,7 +346,7 @@ if ( FT_READ_ULONG( sfnt.format_tag ) || FT_STREAM_READ_FIELDS( offset_table_fields, &sfnt ) ) - return error; + goto Exit; /* many fonts don't have these fields set correctly */ #if 0 @@ -301,51 +357,59 @@ /* load the table directory */ - FT_TRACE2(( "-- Tables count: %12u\n", sfnt.num_tables )); - FT_TRACE2(( "-- Format version: %08lx\n", sfnt.format_tag )); + FT_TRACE2(( "-- Number of tables: %10u\n", sfnt.num_tables )); + FT_TRACE2(( "-- Format version: 0x%08lx\n", sfnt.format_tag )); /* check first */ error = check_table_dir( &sfnt, stream ); if ( error ) { - FT_TRACE2(( "tt_face_load_font_dir: invalid table directory!\n" )); + FT_TRACE2(( "tt_face_load_font_dir:" + " invalid table directory for TrueType\n" )); - return error; + goto Exit; } face->num_tables = sfnt.num_tables; face->format_tag = sfnt.format_tag; if ( FT_QNEW_ARRAY( face->dir_tables, face->num_tables ) ) - return error; + goto Exit; if ( FT_STREAM_SEEK( sfnt.offset + 12 ) || FT_FRAME_ENTER( face->num_tables * 16L ) ) - return error; + goto Exit; entry = face->dir_tables; - limit = entry + face->num_tables; - for ( ; entry < limit; entry++ ) + for ( nn = 0; nn < sfnt.num_tables; nn++ ) { entry->Tag = FT_GET_TAG4(); entry->CheckSum = FT_GET_ULONG(); entry->Offset = FT_GET_LONG(); entry->Length = FT_GET_LONG(); - FT_TRACE2(( " %c%c%c%c - %08lx - %08lx\n", - (FT_Char)( entry->Tag >> 24 ), - (FT_Char)( entry->Tag >> 16 ), - (FT_Char)( entry->Tag >> 8 ), - (FT_Char)( entry->Tag ), - entry->Offset, - entry->Length )); + /* ignore invalid tables */ + if ( entry->Offset + entry->Length > stream->size ) + continue; + else + { + FT_TRACE2(( " %c%c%c%c - %08lx - %08lx\n", + (FT_Char)( entry->Tag >> 24 ), + (FT_Char)( entry->Tag >> 16 ), + (FT_Char)( entry->Tag >> 8 ), + (FT_Char)( entry->Tag ), + entry->Offset, + entry->Length )); + entry++; + } } FT_FRAME_EXIT(); FT_TRACE2(( "table directory loaded\n\n" )); + Exit: return error; } @@ -618,6 +682,17 @@ if ( maxProfile->maxFunctionDefs == 0 ) maxProfile->maxFunctionDefs = 64; + + /* we add 4 phantom points later */ + if ( maxProfile->maxTwilightPoints > ( 0xFFFFU - 4 ) ) + { + FT_TRACE0(( "tt_face_load_maxp:" + " too much twilight points in `maxp' table;\n" + " " + " some glyphs might be rendered incorrectly\n" )); + + maxProfile->maxTwilightPoints = 0xFFFFU - 4; + } } FT_TRACE3(( "numGlyphs: %u\n", maxProfile->numGlyphs )); @@ -707,7 +782,7 @@ if ( storage_start > storage_limit ) { - FT_ERROR(( "invalid `name' table\n" )); + FT_ERROR(( "tt_face_load_name: invalid `name' table\n" )); error = SFNT_Err_Name_Table_Missing; goto Exit; } diff --git a/src/freetype2/sfnt/ttmtx.c b/src/freetype2/sfnt/ttmtx.c index 286bd0c..53e6ac7 100644 --- a/src/freetype2/sfnt/ttmtx.c +++ b/src/freetype2/sfnt/ttmtx.c @@ -4,7 +4,7 @@ /* */ /* Load the metrics tables common to TTF and OTF fonts (body). */ /* */ -/* Copyright 2006, 2007 by */ +/* Copyright 2006, 2007, 2008, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -60,7 +60,7 @@ /* <Return> */ /* FreeType error code. 0 means success. */ /* */ -#if !defined FT_CONFIG_OPTION_OLD_INTERNALS +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS FT_LOCAL_DEF( FT_Error ) tt_face_load_hmtx( TT_Face face, @@ -97,7 +97,7 @@ return error; } -#else /* !OPTIMIZE_MEMORY || OLD_INTERNALS */ +#else /* !FT_CONFIG_OPTION_OLD_INTERNALS */ FT_LOCAL_DEF( FT_Error ) tt_face_load_hmtx( TT_Face face, @@ -161,7 +161,9 @@ if ( num_shorts < 0 ) { - FT_ERROR(( "%cmtx has more metrics than glyphs.\n" )); + FT_TRACE0(( "tt_face_load_hmtx:" + " %cmtx has more metrics than glyphs.\n", + vertical ? "v" : "h" )); /* Adobe simply ignores this problem. So we shall do the same. */ #if 0 @@ -229,7 +231,7 @@ return error; } -#endif /* !OPTIMIZE_MEMORY || OLD_INTERNALS */ +#endif /* !FT_CONFIG_OPTION_OLD_INTERNALS */ /*************************************************************************/ @@ -341,7 +343,7 @@ /* */ /* advance :: The advance width resp. advance height. */ /* */ -#if !defined FT_CONFIG_OPTION_OLD_INTERNALS +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS FT_LOCAL_DEF( FT_Error ) tt_face_get_metrics( TT_Face face, @@ -420,7 +422,7 @@ return SFNT_Err_Ok; } -#else /* OLD_INTERNALS */ +#else /* !FT_CONFIG_OPTION_OLD_INTERNALS */ FT_LOCAL_DEF( FT_Error ) tt_face_get_metrics( TT_Face face, @@ -431,7 +433,8 @@ { void* v = &face->vertical; void* h = &face->horizontal; - TT_HoriHeader* header = vertical ? (TT_HoriHeader*)v : h; + TT_HoriHeader* header = vertical ? (TT_HoriHeader*)v + : (TT_HoriHeader*)h; TT_LongMetrics longs_m; FT_UShort k = header->number_Of_HMetrics; @@ -459,7 +462,7 @@ return SFNT_Err_Ok; } -#endif /* !OPTIMIZE_MEMORY || OLD_INTERNALS */ +#endif /* !FT_CONFIG_OPTION_OLD_INTERNALS */ /* END */ diff --git a/src/freetype2/sfnt/ttpost.c b/src/freetype2/sfnt/ttpost.c index 1e61636..aa0bf1e 100644 --- a/src/freetype2/sfnt/ttpost.c +++ b/src/freetype2/sfnt/ttpost.c @@ -5,7 +5,7 @@ /* Postcript name table processing for TrueType and OpenType fonts */ /* (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2007, 2008, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -29,7 +29,6 @@ #include FT_INTERNAL_STREAM_H #include FT_TRUETYPE_TAGS_H #include "ttpost.h" -#include "ttload.h" #include "sferrors.h" @@ -62,11 +61,11 @@ /* table of Mac names. Thus, it is possible to build a version of */ /* FreeType without the Type 1 driver & PSNames module. */ -#define MAC_NAME( x ) tt_post_default_names[x] +#define MAC_NAME( x ) ( (FT_String*)tt_post_default_names[x] ) /* the 258 default Mac PS glyph names */ - static const FT_String* tt_post_default_names[258] = + static const FT_String* const tt_post_default_names[258] = { /* 0 */ ".notdef", ".null", "CR", "space", "exclam", @@ -416,13 +415,14 @@ /* tt_face_get_ps_name */ /* */ /* <Description> */ - /* Gets the PostScript glyph name of a glyph. */ + /* Get the PostScript glyph name of a glyph. */ /* */ /* <Input> */ /* face :: A handle to the parent face. */ /* */ /* idx :: The glyph index. */ /* */ + /* <InOut> */ /* PSname :: The address of a string pointer. Will be NULL in case */ /* of error, otherwise it is a pointer to the glyph name. */ /* */ @@ -436,9 +436,9 @@ FT_UInt idx, FT_String** PSname ) { - FT_Error error; - TT_Post_Names names; - FT_Fixed format; + FT_Error error; + TT_Post_Names names; + FT_Fixed format; #ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES FT_Service_PsCMaps psnames; diff --git a/src/freetype2/sfnt/ttsbit.c b/src/freetype2/sfnt/ttsbit.c index eff49da..833bb2a 100644 --- a/src/freetype2/sfnt/ttsbit.c +++ b/src/freetype2/sfnt/ttsbit.c @@ -4,7 +4,7 @@ /* */ /* TrueType and OpenType embedded bitmap support (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -24,11 +24,11 @@ * Alas, the memory-optimized sbit loader can't be used when implementing * the `old internals' hack */ -#if !defined FT_CONFIG_OPTION_OLD_INTERNALS +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS #include "ttsbit0.c" -#else /* !FT_CONFIG_OPTION_OLD_INTERNALS */ +#else /* FT_CONFIG_OPTION_OLD_INTERNALS */ #include <ft2build.h> #include FT_INTERNAL_DEBUG_H @@ -83,7 +83,8 @@ FT_Int line_bits, FT_Bool byte_padded, FT_Int x_offset, - FT_Int y_offset ) + FT_Int y_offset, + FT_Int source_height ) { FT_Byte* line_buff; FT_Int line_incr; @@ -116,7 +117,7 @@ acc = 0; /* clear accumulator */ loaded = 0; /* no bits were loaded */ - for ( height = target->rows; height > 0; height-- ) + for ( height = source_height; height > 0; height-- ) { FT_Byte* cur = line_buff; /* current write cursor */ FT_Int count = line_bits; /* # of bits to extract per line */ @@ -382,8 +383,9 @@ break; case 5: - error = Load_SBit_Const_Metrics( range, stream ) || - Load_SBit_Range_Codes( range, stream, 0 ); + error = Load_SBit_Const_Metrics( range, stream ); + if ( !error ) + error = Load_SBit_Range_Codes( range, stream, 0 ); break; default: @@ -492,7 +494,7 @@ if ( version != 0x00020000L || num_strikes >= 0x10000L ) { - FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version!\n" )); + FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version\n" )); error = SFNT_Err_Invalid_File_Format; goto Exit; @@ -771,7 +773,7 @@ Found: /* return successfully! */ *arange = range; - return 0; + return SFNT_Err_Ok; } } @@ -1229,7 +1231,7 @@ /* the sbit blitter doesn't make a difference between pixmap */ /* depths. */ blit_sbit( map, (FT_Byte*)stream->cursor, line_bits, pad_bytes, - x_offset * pix_bits, y_offset ); + x_offset * pix_bits, y_offset, metrics->height ); FT_FRAME_EXIT(); } @@ -1323,7 +1325,11 @@ range->image_format, metrics, stream ); case 8: /* compound format */ - FT_Stream_Skip( stream, 1L ); + if ( FT_STREAM_SKIP( 1L ) ) + { + error = SFNT_Err_Invalid_Stream_Skip; + goto Exit; + } /* fallthrough */ case 9: @@ -1495,7 +1501,7 @@ return error; } -#endif /* !FT_CONFIG_OPTION_OLD_INTERNALS */ +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ /* END */ diff --git a/src/freetype2/sfnt/ttsbit.h b/src/freetype2/sfnt/ttsbit.h index c6067c0..7ea2af1 100644 --- a/src/freetype2/sfnt/ttsbit.h +++ b/src/freetype2/sfnt/ttsbit.h @@ -4,7 +4,7 @@ /* */ /* TrueType and OpenType embedded bitmap support (specification). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -45,7 +45,7 @@ FT_BEGIN_HEADER FT_ULong strike_index, FT_Size_Metrics* metrics ); -#if defined FT_CONFIG_OPTION_OLD_INTERNALS +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS FT_LOCAL( FT_Error ) tt_find_sbit_image( TT_Face face, FT_UInt glyph_index, diff --git a/src/freetype2/sfnt/ttsbit0.c b/src/freetype2/sfnt/ttsbit0.c index f8adc64..38bcf21 100644 --- a/src/freetype2/sfnt/ttsbit0.c +++ b/src/freetype2/sfnt/ttsbit0.c @@ -5,7 +5,7 @@ /* TrueType and OpenType embedded bitmap support (body). */ /* This is a heap-optimized version. */ /* */ -/* Copyright 2005, 2006, 2007 by */ +/* Copyright 2005, 2006, 2007, 2008, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -39,65 +39,16 @@ #define FT_COMPONENT trace_ttsbit - static const FT_Frame_Field tt_sbit_line_metrics_fields[] = - { -#undef FT_STRUCTURE -#define FT_STRUCTURE TT_SBit_LineMetricsRec - - /* no FT_FRAME_START */ - FT_FRAME_CHAR( ascender ), - FT_FRAME_CHAR( descender ), - FT_FRAME_BYTE( max_width ), - - FT_FRAME_CHAR( caret_slope_numerator ), - FT_FRAME_CHAR( caret_slope_denominator ), - FT_FRAME_CHAR( caret_offset ), - - FT_FRAME_CHAR( min_origin_SB ), - FT_FRAME_CHAR( min_advance_SB ), - FT_FRAME_CHAR( max_before_BL ), - FT_FRAME_CHAR( min_after_BL ), - FT_FRAME_CHAR( pads[0] ), - FT_FRAME_CHAR( pads[1] ), - FT_FRAME_END - }; - - static const FT_Frame_Field tt_strike_start_fields[] = - { -#undef FT_STRUCTURE -#define FT_STRUCTURE TT_SBit_StrikeRec - - /* no FT_FRAME_START */ - FT_FRAME_ULONG( ranges_offset ), - FT_FRAME_SKIP_LONG, - FT_FRAME_ULONG( num_ranges ), - FT_FRAME_ULONG( color_ref ), - FT_FRAME_END - }; - - static const FT_Frame_Field tt_strike_end_fields[] = - { - /* no FT_FRAME_START */ - FT_FRAME_USHORT( start_glyph ), - FT_FRAME_USHORT( end_glyph ), - FT_FRAME_BYTE ( x_ppem ), - FT_FRAME_BYTE ( y_ppem ), - FT_FRAME_BYTE ( bit_depth ), - FT_FRAME_CHAR ( flags ), - FT_FRAME_END - }; - - FT_LOCAL_DEF( FT_Error ) tt_face_load_eblc( TT_Face face, FT_Stream stream ) { - FT_Error error = SFNT_Err_Ok; - FT_Fixed version; - FT_ULong num_strikes, table_size; - FT_Byte* p; - FT_Byte* p_limit; - FT_UInt count; + FT_Error error = SFNT_Err_Ok; + FT_Fixed version; + FT_ULong num_strikes, table_size; + FT_Byte* p; + FT_Byte* p_limit; + FT_UInt count; face->sbit_num_strikes = 0; @@ -111,7 +62,7 @@ if ( table_size < 8 ) { - FT_ERROR(( "%s: table too short!\n", "tt_face_load_sbit_strikes" )); + FT_ERROR(( "tt_face_load_sbit_strikes: table too short\n" )); error = SFNT_Err_Invalid_File_Format; goto Exit; } @@ -129,8 +80,7 @@ if ( version != 0x00020000UL || num_strikes >= 0x10000UL ) { - FT_ERROR(( "%s: invalid table version!\n", - "tt_face_load_sbit_strikes" )); + FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version\n" )); error = SFNT_Err_Invalid_File_Format; goto Fail; } @@ -182,7 +132,7 @@ FT_ULong strike_index, FT_Size_Metrics* metrics ) { - FT_Byte* strike; + FT_Byte* strike; if ( strike_index >= (FT_ULong)face->sbit_num_strikes ) @@ -207,7 +157,7 @@ } - typedef struct + typedef struct TT_SBitDecoderRec_ { TT_Face face; FT_Stream stream; @@ -374,14 +324,11 @@ if ( p + 5 > limit ) goto Fail; - if ( !decoder->metrics_loaded ) - { - metrics->height = p[0]; - metrics->width = p[1]; - metrics->horiBearingX = (FT_Char)p[2]; - metrics->horiBearingY = (FT_Char)p[3]; - metrics->horiAdvance = p[4]; - } + metrics->height = p[0]; + metrics->width = p[1]; + metrics->horiBearingX = (FT_Char)p[2]; + metrics->horiBearingY = (FT_Char)p[3]; + metrics->horiAdvance = p[4]; p += 5; if ( big ) @@ -389,19 +336,16 @@ if ( p + 3 > limit ) goto Fail; - if ( !decoder->metrics_loaded ) - { - metrics->vertBearingX = (FT_Char)p[0]; - metrics->vertBearingY = (FT_Char)p[1]; - metrics->vertAdvance = p[2]; - } + metrics->vertBearingX = (FT_Char)p[0]; + metrics->vertBearingY = (FT_Char)p[1]; + metrics->vertAdvance = p[2]; p += 3; } decoder->metrics_loaded = 1; *pp = p; - return 0; + return SFNT_Err_Ok; Fail: return SFNT_Err_Invalid_Argument; @@ -507,7 +451,7 @@ if ( w > 0 ) wval = (FT_UInt)( wval | ( *p++ & ( 0xFF00U >> w ) ) ); - /* all bits read and there are ( x_pos + w ) bits to be written */ + /* all bits read and there are `x_pos + w' bits to be written */ write[0] = (FT_Byte)( write[0] | ( wval >> x_pos ) ); @@ -525,6 +469,41 @@ } + /* + * Load a bit-aligned bitmap (with pointer `p') into a line-aligned bitmap + * (with pointer `write'). In the example below, the width is 3 pixel, + * and `x_pos' is 1 pixel. + * + * p p+1 + * | | | + * | 7 6 5 4 3 2 1 0 | 7 6 5 4 3 2 1 0 |... + * | | | + * +-------+ +-------+ +-------+ ... + * . . . + * . . . + * v . . + * +-------+ . . + * | | . + * | 7 6 5 4 3 2 1 0 | . + * | | . + * write . . + * . . + * v . + * +-------+ . + * | | + * | 7 6 5 4 3 2 1 0 | + * | | + * write+1 . + * . + * v + * +-------+ + * | | + * | 7 6 5 4 3 2 1 0 | + * | | + * write+2 + * + */ + static FT_Error tt_sbit_decoder_load_bit_aligned( TT_SBitDecoder decoder, FT_Byte* p, @@ -570,6 +549,8 @@ } /* now do the blit */ + + /* adjust `line' to point to the first byte of the bitmap */ line += y_pos * pitch + ( x_pos >> 3 ); x_pos &= 7; @@ -580,16 +561,23 @@ for ( h = height; h > 0; h--, line += pitch ) { FT_Byte* write = line; - FT_Int w = width; + FT_Int w = width; + /* handle initial byte (in target bitmap) specially if necessary */ if ( x_pos ) { w = ( width < 8 - x_pos ) ? width : 8 - x_pos; - if ( nbits < w ) + if ( h == height ) { - rval |= *p++; + rval = *p++; + nbits = x_pos; + } + else if ( nbits < w ) + { + if ( p < limit ) + rval |= *p++; nbits += 8 - w; } else @@ -598,12 +586,14 @@ nbits -= w; } - *write++ |= ( ( rval >> nbits ) & 0xFF ) & ~( 0xFF << w ); + *write++ |= ( ( rval >> nbits ) & 0xFF ) & + ( ~( 0xFF << w ) << ( 8 - w - x_pos ) ); rval <<= 8; w = width - w; } + /* handle medial bytes */ for ( ; w >= 8; w -= 8 ) { rval |= *p++; @@ -612,11 +602,13 @@ rval <<= 8; } + /* handle final byte if necessary */ if ( w > 0 ) { if ( nbits < w ) { - rval |= *p++; + if ( p < limit ) + rval |= *p++; *write |= ( ( rval >> nbits ) & 0xFF ) & ( 0xFF00U >> w ); nbits += 8 - w; @@ -645,6 +637,13 @@ FT_Error error = SFNT_Err_Ok; FT_UInt num_components, nn; + FT_Char horiBearingX = decoder->metrics->horiBearingX; + FT_Char horiBearingY = decoder->metrics->horiBearingY; + FT_Byte horiAdvance = decoder->metrics->horiAdvance; + FT_Char vertBearingX = decoder->metrics->vertBearingX; + FT_Char vertBearingY = decoder->metrics->vertBearingY; + FT_Byte vertAdvance = decoder->metrics->vertAdvance; + if ( p + 2 > limit ) goto Fail; @@ -653,6 +652,13 @@ if ( p + 4 * num_components > limit ) goto Fail; + if ( !decoder->bitmap_allocated ) + { + error = tt_sbit_decoder_alloc_bitmap( decoder ); + if ( error ) + goto Exit; + } + for ( nn = 0; nn < num_components; nn++ ) { FT_UInt gindex = FT_NEXT_USHORT( p ); @@ -667,6 +673,15 @@ break; } + decoder->metrics->horiBearingX = horiBearingX; + decoder->metrics->horiBearingY = horiBearingY; + decoder->metrics->horiAdvance = horiAdvance; + decoder->metrics->vertBearingX = vertBearingX; + decoder->metrics->vertBearingY = vertBearingY; + decoder->metrics->vertAdvance = vertAdvance; + decoder->metrics->width = (FT_UInt)decoder->bitmap->width; + decoder->metrics->height = (FT_UInt)decoder->bitmap->rows; + Exit: return error; |