--- a/misc/libfreetype/src/sfnt/sfdriver.c Thu Jul 25 23:16:06 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,656 +0,0 @@
-/***************************************************************************/
-/* */
-/* sfdriver.c */
-/* */
-/* High-level SFNT driver interface (body). */
-/* */
-/* Copyright 1996-2007, 2009-2011 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#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"
-
-#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
-#include "ttsbit.h"
-#endif
-
-#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
-#include "ttpost.h"
-#endif
-
-#ifdef TT_CONFIG_OPTION_BDF
-#include "ttbdf.h"
-#include FT_SERVICE_BDF_H
-#endif
-
-#include "ttcmap.h"
-#include "ttkern.h"
-#include "ttmtx.h"
-
-#include FT_SERVICE_GLYPH_DICT_H
-#include FT_SERVICE_POSTSCRIPT_NAME_H
-#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
- *
- */
-
- static void*
- get_sfnt_table( TT_Face face,
- FT_Sfnt_Tag tag )
- {
- void* table;
-
-
- switch ( tag )
- {
- case ft_sfnt_head:
- table = &face->header;
- break;
-
- case ft_sfnt_hhea:
- table = &face->horizontal;
- break;
-
- case ft_sfnt_vhea:
- table = face->vertical_info ? &face->vertical : 0;
- break;
-
- case ft_sfnt_os2:
- table = face->os2.version == 0xFFFFU ? 0 : &face->os2;
- break;
-
- case ft_sfnt_post:
- table = &face->postscript;
- break;
-
- case ft_sfnt_maxp:
- table = &face->max_profile;
- break;
-
- case ft_sfnt_pclt:
- table = face->pclt.Version ? &face->pclt : 0;
- break;
-
- default:
- table = 0;
- }
-
- return table;
- }
-
-
- static FT_Error
- sfnt_table_info( TT_Face face,
- FT_UInt idx,
- FT_ULong *tag,
- FT_ULong *offset,
- FT_ULong *length )
- {
- if ( !offset || !length )
- return SFNT_Err_Invalid_Argument;
-
- if ( !tag )
- *length = face->num_tables;
- else
- {
- 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;
- }
-
-
- 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
-
- /*
- * GLYPH DICT SERVICE
- *
- */
-
- static FT_Error
- sfnt_get_glyph_name( TT_Face face,
- FT_UInt glyph_index,
- FT_Pointer buffer,
- FT_UInt buffer_max )
- {
- FT_String* gname;
- FT_Error error;
-
-
- error = tt_face_get_ps_name( face, glyph_index, &gname );
- if ( !error )
- FT_STRCPYN( buffer, gname, buffer_max );
-
- return error;
- }
-
-
- 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)sfnt_get_name_index
- )
-
-#endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */
-
-
- /*
- * POSTSCRIPT NAME SERVICE
- *
- */
-
- static const char*
- sfnt_get_ps_name( TT_Face face )
- {
- FT_Int n, found_win, found_apple;
- const char* result = NULL;
-
-
- /* shouldn't happen, but just in case to avoid memory leaks */
- if ( face->postscript_name )
- return face->postscript_name;
-
- /* scan the name table to see whether we have a Postscript name here, */
- /* either in Macintosh or Windows platform encodings */
- found_win = -1;
- found_apple = -1;
-
- for ( n = 0; n < face->num_names; n++ )
- {
- TT_NameEntryRec* name = face->name_table.names + n;
-
-
- if ( name->nameID == 6 && name->stringLength > 0 )
- {
- if ( name->platformID == 3 &&
- name->encodingID == 1 &&
- name->languageID == 0x409 )
- found_win = n;
-
- if ( name->platformID == 1 &&
- name->encodingID == 0 &&
- name->languageID == 0 )
- found_apple = n;
- }
- }
-
- if ( found_win != -1 )
- {
- FT_Memory memory = face->root.memory;
- TT_NameEntryRec* name = face->name_table.names + found_win;
- FT_UInt len = name->stringLength / 2;
- FT_Error error = SFNT_Err_Ok;
-
- FT_UNUSED( error );
-
-
- if ( !FT_ALLOC( result, name->stringLength + 1 ) )
- {
- FT_Stream stream = face->name_table.stream;
- FT_String* r = (FT_String*)result;
- FT_Byte* p = (FT_Byte*)name->string;
-
-
- if ( FT_STREAM_SEEK( name->stringOffset ) ||
- FT_FRAME_ENTER( name->stringLength ) )
- {
- FT_FREE( result );
- name->stringLength = 0;
- name->stringOffset = 0;
- FT_FREE( name->string );
-
- goto Exit;
- }
-
- p = (FT_Byte*)stream->cursor;
-
- for ( ; len > 0; len--, p += 2 )
- {
- if ( p[0] == 0 && p[1] >= 32 && p[1] < 128 )
- *r++ = p[1];
- }
- *r = '\0';
-
- FT_FRAME_EXIT();
- }
- goto Exit;
- }
-
- if ( found_apple != -1 )
- {
- FT_Memory memory = face->root.memory;
- TT_NameEntryRec* name = face->name_table.names + found_apple;
- FT_UInt len = name->stringLength;
- FT_Error error = SFNT_Err_Ok;
-
- FT_UNUSED( error );
-
-
- if ( !FT_ALLOC( result, len + 1 ) )
- {
- FT_Stream stream = face->name_table.stream;
-
-
- if ( FT_STREAM_SEEK( name->stringOffset ) ||
- FT_STREAM_READ( result, len ) )
- {
- name->stringOffset = 0;
- name->stringLength = 0;
- FT_FREE( name->string );
- FT_FREE( result );
- goto Exit;
- }
- ((char*)result)[len] = '\0';
- }
- }
-
- Exit:
- face->postscript_name = result;
- return result;
- }
-
- FT_DEFINE_SERVICE_PSFONTNAMEREC(sfnt_service_ps_name,
- (FT_PsName_GetFunc)sfnt_get_ps_name
- )
-
-
- /*
- * TT CMAP INFO
- */
- FT_DEFINE_SERVICE_TTCMAPSREC(tt_service_get_cmap_info,
- (TT_CMap_Info_GetFunc)tt_get_cmap_info
- )
-
-
-#ifdef TT_CONFIG_OPTION_BDF
-
- static FT_Error
- sfnt_get_charset_id( TT_Face face,
- const char* *acharset_encoding,
- const char* *acharset_registry )
- {
- BDF_PropertyRec encoding, registry;
- FT_Error error;
-
-
- /* XXX: I don't know whether this is correct, since
- * tt_face_find_bdf_prop only returns something correct if we have
- * previously selected a size that is listed in the BDF table.
- * Should we change the BDF table format to include single offsets
- * for `CHARSET_REGISTRY' and `CHARSET_ENCODING'?
- */
- error = tt_face_find_bdf_prop( face, "CHARSET_REGISTRY", ®istry );
- if ( !error )
- {
- error = tt_face_find_bdf_prop( face, "CHARSET_ENCODING", &encoding );
- if ( !error )
- {
- if ( registry.type == BDF_PROPERTY_TYPE_ATOM &&
- encoding.type == BDF_PROPERTY_TYPE_ATOM )
- {
- *acharset_encoding = encoding.u.atom;
- *acharset_registry = registry.u.atom;
- }
- else
- error = SFNT_Err_Invalid_Argument;
- }
- }
-
- return error;
- }
-
-
- FT_DEFINE_SERVICE_BDFRec(sfnt_service_bdf,
- (FT_BDF_GetCharsetIdFunc) sfnt_get_charset_id,
- (FT_BDF_GetPropertyFunc) tt_face_find_bdf_prop
- )
-
-#endif /* TT_CONFIG_OPTION_BDF */
-
-
- /*
- * SERVICE LIST
- */
-
-#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_CALLBACK_DEF( FT_Module_Interface )
- sfnt_get_interface( FT_Module module,
- const char* module_interface )
- {
- FT_UNUSED( module );
-
- return ft_service_list_lookup( FT_SFNT_SERVICES_GET, module_interface );
- }
-
-
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- FT_CALLBACK_DEF( FT_Error )
- tt_face_load_sfnt_header_stub( TT_Face face,
- FT_Stream stream,
- FT_Long face_index,
- SFNT_Header header )
- {
- FT_UNUSED( face );
- FT_UNUSED( stream );
- FT_UNUSED( face_index );
- FT_UNUSED( header );
-
- return SFNT_Err_Unimplemented_Feature;
- }
-
-
- FT_CALLBACK_DEF( FT_Error )
- tt_face_load_directory_stub( TT_Face face,
- FT_Stream stream,
- SFNT_Header header )
- {
- FT_UNUSED( face );
- FT_UNUSED( stream );
- FT_UNUSED( header );
-
- return SFNT_Err_Unimplemented_Feature;
- }
-
-
- FT_CALLBACK_DEF( FT_Error )
- tt_face_load_hdmx_stub( TT_Face face,
- FT_Stream stream )
- {
- FT_UNUSED( face );
- FT_UNUSED( stream );
-
- return SFNT_Err_Unimplemented_Feature;
- }
-
-
- FT_CALLBACK_DEF( void )
- tt_face_free_hdmx_stub( TT_Face face )
- {
- FT_UNUSED( face );
- }
-
-
- FT_CALLBACK_DEF( FT_Error )
- tt_face_set_sbit_strike_stub( TT_Face face,
- FT_UInt x_ppem,
- FT_UInt y_ppem,
- FT_ULong* astrike_index )
- {
- /*
- * We simply forge a FT_Size_Request and call the real function
- * that does all the work.
- *
- * This stub might be called by libXfont in the X.Org Xserver,
- * compiled against version 2.1.8 or newer.
- */
-
- FT_Size_RequestRec req;
-
-
- req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
- req.width = (FT_F26Dot6)x_ppem;
- req.height = (FT_F26Dot6)y_ppem;
- req.horiResolution = 0;
- req.vertResolution = 0;
-
- *astrike_index = 0x7FFFFFFFUL;
-
- return tt_face_set_sbit_strike( face, &req, astrike_index );
- }
-
-
- FT_CALLBACK_DEF( FT_Error )
- tt_face_load_sbit_stub( TT_Face face,
- FT_Stream stream )
- {
- FT_UNUSED( face );
- FT_UNUSED( stream );
-
- /*
- * This function was originally implemented to load the sbit table.
- * However, it has been replaced by `tt_face_load_eblc', and this stub
- * is only there for some rogue clients which would want to call it
- * directly (which doesn't make much sense).
- */
- return SFNT_Err_Unimplemented_Feature;
- }
-
-
- FT_CALLBACK_DEF( void )
- tt_face_free_sbit_stub( TT_Face face )
- {
- /* nothing to do in this stub */
- FT_UNUSED( face );
- }
-
-
- FT_CALLBACK_DEF( FT_Error )
- tt_face_load_charmap_stub( TT_Face face,
- void* cmap,
- FT_Stream input )
- {
- FT_UNUSED( face );
- FT_UNUSED( cmap );
- FT_UNUSED( input );
-
- return SFNT_Err_Unimplemented_Feature;
- }
-
-
- FT_CALLBACK_DEF( FT_Error )
- tt_face_free_charmap_stub( TT_Face face,
- void* cmap )
- {
- FT_UNUSED( face );
- FT_UNUSED( cmap );
-
- return SFNT_Err_Ok;
- }
-
-#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
-
- FT_DEFINE_SFNT_INTERFACE(sfnt_interface,
- tt_face_goto_table,
-
- sfnt_init_face,
- sfnt_load_face,
- sfnt_done_face,
- sfnt_get_interface,
-
- tt_face_load_any,
-
- 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,
- tt_face_load_cmap,
- tt_face_load_maxp,
- tt_face_load_os2,
- tt_face_load_post,
-
- tt_face_load_name,
- tt_face_free_name,
-
- 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,
-
- /* see `ttload.h' */
- PUT_EMBEDDED_BITMAPS(tt_face_load_bhed),
-
- 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, /* FT_CONFIG_OPTION_OLD_INTERNALS */
- tt_load_sbit_metrics, /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
- PUT_EMBEDDED_BITMAPS(tt_face_load_sbit_image),
-
- tt_face_free_sbit_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
- /* see `ttpost.h' */
- PUT_PS_NAMES(tt_face_get_ps_name),
- PUT_PS_NAMES(tt_face_free_ps_names),
-
- 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 */
-
- tt_face_get_kerning,
-
- /* since version 2.2 */
-
- tt_face_load_font_dir,
- tt_face_load_hmtx,
-
- /* see `ttsbit.h' and `sfnt.h' */
- PUT_EMBEDDED_BITMAPS(tt_face_load_eblc),
- PUT_EMBEDDED_BITMAPS(tt_face_free_eblc),
-
- PUT_EMBEDDED_BITMAPS(tt_face_set_sbit_strike),
- PUT_EMBEDDED_BITMAPS(tt_face_load_strike_metrics),
-
- tt_face_get_metrics
- )
-
-
- FT_DEFINE_MODULE(sfnt_module_class,
-
- 0, /* not a font driver or renderer */
- sizeof( FT_ModuleRec ),
-
- "sfnt", /* driver name */
- 0x10000L, /* driver version 1.0 */
- 0x20000L, /* driver requires FreeType 2.0 or higher */
-
- (const void*)&FT_SFNT_INTERFACE_GET, /* module specific interface */
-
- (FT_Module_Constructor)0,
- (FT_Module_Destructor) 0,
- (FT_Module_Requester) sfnt_get_interface
- )
-
-
-/* END */