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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:24 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:24 -0800 |
commit | ed49a886544c69b375cd7bce63e9ace9bfbad0e5 (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /src/cff/cffdrivr.c | |
parent | b36db06baca4c030538565e01b8264971c9b69f8 (diff) | |
download | android_external_freetype-ed49a886544c69b375cd7bce63e9ace9bfbad0e5.tar.gz android_external_freetype-ed49a886544c69b375cd7bce63e9ace9bfbad0e5.tar.bz2 android_external_freetype-ed49a886544c69b375cd7bce63e9ace9bfbad0e5.zip |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'src/cff/cffdrivr.c')
-rw-r--r-- | src/cff/cffdrivr.c | 610 |
1 files changed, 0 insertions, 610 deletions
diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c deleted file mode 100644 index 68de8dc..0000000 --- a/src/cff/cffdrivr.c +++ /dev/null @@ -1,610 +0,0 @@ -/***************************************************************************/ -/* */ -/* cffdrivr.c */ -/* */ -/* OpenType font driver implementation (body). */ -/* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 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_FREETYPE_H -#include FT_INTERNAL_DEBUG_H -#include FT_INTERNAL_STREAM_H -#include FT_INTERNAL_SFNT_H -#include FT_TRUETYPE_IDS_H -#include FT_SERVICE_CID_H -#include FT_SERVICE_POSTSCRIPT_CMAPS_H -#include FT_SERVICE_POSTSCRIPT_INFO_H -#include FT_SERVICE_POSTSCRIPT_NAME_H -#include FT_SERVICE_TT_CMAP_H - -#include "cffdrivr.h" -#include "cffgload.h" -#include "cffload.h" -#include "cffcmap.h" - -#include "cfferrs.h" - -#include FT_SERVICE_XFREE86_NAME_H -#include FT_SERVICE_GLYPH_DICT_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_cffdriver - - - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /**** ****/ - /**** ****/ - /**** F A C E S ****/ - /**** ****/ - /**** ****/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - -#undef PAIR_TAG -#define PAIR_TAG( left, right ) ( ( (FT_ULong)left << 16 ) | \ - (FT_ULong)right ) - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* cff_get_kerning */ - /* */ - /* <Description> */ - /* A driver method used to return the kerning vector between two */ - /* glyphs of the same face. */ - /* */ - /* <Input> */ - /* face :: A handle to the source face object. */ - /* */ - /* left_glyph :: The index of the left glyph in the kern pair. */ - /* */ - /* right_glyph :: The index of the right glyph in the kern pair. */ - /* */ - /* <Output> */ - /* kerning :: The kerning vector. This is in font units for */ - /* scalable formats, and in pixels for fixed-sizes */ - /* formats. */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. */ - /* */ - /* <Note> */ - /* Only horizontal layouts (left-to-right & right-to-left) are */ - /* supported by this function. Other layouts, or more sophisticated */ - /* kernings, are out of scope of this method (the basic driver */ - /* interface is meant to be simple). */ - /* */ - /* They can be implemented by format-specific interfaces. */ - /* */ - FT_CALLBACK_DEF( FT_Error ) - cff_get_kerning( FT_Face ttface, /* TT_Face */ - FT_UInt left_glyph, - FT_UInt right_glyph, - FT_Vector* kerning ) - { - TT_Face face = (TT_Face)ttface; - SFNT_Service sfnt = (SFNT_Service)face->sfnt; - - - kerning->x = 0; - kerning->y = 0; - - if ( sfnt ) - kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph ); - - return CFF_Err_Ok; - } - - -#undef PAIR_TAG - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* Load_Glyph */ - /* */ - /* <Description> */ - /* A driver method used to load a glyph within a given glyph slot. */ - /* */ - /* <Input> */ - /* slot :: A handle to the target slot object where the glyph */ - /* will be loaded. */ - /* */ - /* size :: A handle to the source face size at which the glyph */ - /* must be scaled, loaded, etc. */ - /* */ - /* glyph_index :: The index of the glyph in the font file. */ - /* */ - /* load_flags :: A flag indicating what to load for this glyph. The */ - /* FT_LOAD_??? constants can be used to control the */ - /* glyph loading process (e.g., whether the outline */ - /* should be scaled, whether to load bitmaps or not, */ - /* whether to hint the outline, etc). */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. */ - /* */ - FT_CALLBACK_DEF( FT_Error ) - Load_Glyph( FT_GlyphSlot cffslot, /* CFF_GlyphSlot */ - FT_Size cffsize, /* CFF_Size */ - FT_UInt glyph_index, - FT_Int32 load_flags ) - { - FT_Error error; - CFF_GlyphSlot slot = (CFF_GlyphSlot)cffslot; - CFF_Size size = (CFF_Size)cffsize; - - - if ( !slot ) - return CFF_Err_Invalid_Slot_Handle; - - /* check whether we want a scaled outline or bitmap */ - if ( !size ) - load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; - - /* reset the size object if necessary */ - if ( load_flags & FT_LOAD_NO_SCALE ) - size = NULL; - - if ( size ) - { - /* these two objects must have the same parent */ - if ( cffsize->face != cffslot->face ) - return CFF_Err_Invalid_Face_Handle; - } - - /* now load the glyph outline if necessary */ - error = cff_slot_load( slot, size, glyph_index, load_flags ); - - /* force drop-out mode to 2 - irrelevant now */ - /* slot->outline.dropout_mode = 2; */ - - return error; - } - - - FT_CALLBACK_DEF(FT_Error) - cff_get_advances( FT_Face ftface, - FT_UInt start, - FT_UInt count, - FT_UInt flags, - FT_Fixed* advances ) - { - CFF_Face face = (CFF_Face) ftface; - FT_UInt nn; - FT_Error error = 0; - FT_GlyphSlot slot = face->root.glyph; - - flags |= FT_LOAD_ADVANCE_ONLY; - - for (nn = 0; nn < count; nn++) - { - error = Load_Glyph( slot, face->root.size, start+nn, flags ); - if (error) break; - - advances[nn] = (flags & FT_LOAD_VERTICAL_LAYOUT) - ? slot->advance.y - : slot->advance.x; - } - return error; - } - - /* - * GLYPH DICT SERVICE - * - */ - - static FT_Error - cff_get_glyph_name( CFF_Face face, - FT_UInt glyph_index, - FT_Pointer buffer, - FT_UInt buffer_max ) - { - CFF_Font font = (CFF_Font)face->extra.data; - FT_Memory memory = FT_FACE_MEMORY( face ); - FT_String* gname; - FT_UShort sid; - FT_Service_PsCMaps psnames; - FT_Error error; - - - FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); - if ( !psnames ) - { - FT_ERROR(( "cff_get_glyph_name:" )); - FT_ERROR(( " cannot get glyph name from CFF & CEF fonts\n" )); - FT_ERROR(( " " )); - FT_ERROR(( " without the `PSNames' module\n" )); - error = CFF_Err_Unknown_File_Format; - goto Exit; - } - - /* first, locate the sid in the charset table */ - sid = font->charset.sids[glyph_index]; - - /* now, lookup the name itself */ - gname = cff_index_get_sid_string( &font->string_index, sid, psnames ); - - if ( gname ) - FT_STRCPYN( buffer, gname, buffer_max ); - - FT_FREE( gname ); - error = CFF_Err_Ok; - - Exit: - return error; - } - - - static FT_UInt - cff_get_name_index( CFF_Face face, - FT_String* glyph_name ) - { - CFF_Font cff; - CFF_Charset charset; - FT_Service_PsCMaps psnames; - FT_Memory memory = FT_FACE_MEMORY( face ); - FT_String* name; - FT_UShort sid; - FT_UInt i; - FT_Int result; - - - cff = (CFF_FontRec *)face->extra.data; - charset = &cff->charset; - - FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); - if ( !psnames ) - return 0; - - for ( i = 0; i < cff->num_glyphs; i++ ) - { - sid = charset->sids[i]; - - if ( sid > 390 ) - name = cff_index_get_name( &cff->string_index, sid - 391 ); - else - name = (FT_String *)psnames->adobe_std_strings( sid ); - - if ( !name ) - continue; - - result = ft_strcmp( glyph_name, name ); - - if ( sid > 390 ) - FT_FREE( name ); - - if ( !result ) - return i; - } - - return 0; - } - - - static const FT_Service_GlyphDictRec cff_service_glyph_dict = - { - (FT_GlyphDict_GetNameFunc) cff_get_glyph_name, - (FT_GlyphDict_NameIndexFunc)cff_get_name_index, - }; - - - /* - * POSTSCRIPT INFO SERVICE - * - */ - - static FT_Int - cff_ps_has_glyph_names( FT_Face face ) - { - return ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) > 0; - } - - - static FT_Error - cff_ps_get_font_info( CFF_Face face, - PS_FontInfoRec* afont_info ) - { - CFF_Font cff = (CFF_Font)face->extra.data; - FT_Error error = FT_Err_Ok; - - - if ( cff && cff->font_info == NULL ) - { - CFF_FontRecDict dict = &cff->top_font.font_dict; - PS_FontInfoRec *font_info; - FT_Memory memory = face->root.memory; - FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; - - - if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) ) - goto Fail; - - font_info->version = cff_index_get_sid_string( &cff->string_index, - dict->version, - psnames ); - font_info->notice = cff_index_get_sid_string( &cff->string_index, - dict->notice, - psnames ); - font_info->full_name = cff_index_get_sid_string( &cff->string_index, - dict->full_name, - psnames ); - font_info->family_name = cff_index_get_sid_string( &cff->string_index, - dict->family_name, - psnames ); - font_info->weight = cff_index_get_sid_string( &cff->string_index, - dict->weight, - psnames ); - font_info->italic_angle = dict->italic_angle; - font_info->is_fixed_pitch = dict->is_fixed_pitch; - font_info->underline_position = (FT_Short)dict->underline_position; - font_info->underline_thickness = (FT_Short)dict->underline_thickness; - - cff->font_info = font_info; - } - - *afont_info = *cff->font_info; - - Fail: - return error; - } - - - static const FT_Service_PsInfoRec cff_service_ps_info = - { - (PS_GetFontInfoFunc) cff_ps_get_font_info, - (PS_HasGlyphNamesFunc) cff_ps_has_glyph_names, - (PS_GetFontPrivateFunc)NULL /* unsupported with CFF fonts */ - }; - - - /* - * POSTSCRIPT NAME SERVICE - * - */ - - static const char* - cff_get_ps_name( CFF_Face face ) - { - CFF_Font cff = (CFF_Font)face->extra.data; - - - return (const char*)cff->font_name; - } - - - static const FT_Service_PsFontNameRec cff_service_ps_name = - { - (FT_PsName_GetFunc)cff_get_ps_name - }; - - - /* - * TT CMAP INFO - * - * If the charmap is a synthetic Unicode encoding cmap or - * a Type 1 standard (or expert) encoding cmap, hide TT CMAP INFO - * service defined in SFNT module. - * - * Otherwise call the service function in the sfnt module. - * - */ - static FT_Error - cff_get_cmap_info( FT_CharMap charmap, - TT_CMapInfo *cmap_info ) - { - FT_CMap cmap = FT_CMAP( charmap ); - FT_Error error = CFF_Err_Ok; - - - cmap_info->language = 0; - - if ( cmap->clazz != &cff_cmap_encoding_class_rec && - cmap->clazz != &cff_cmap_unicode_class_rec ) - { - FT_Face face = FT_CMAP_FACE( cmap ); - FT_Library library = FT_FACE_LIBRARY( face ); - FT_Module sfnt = FT_Get_Module( library, "sfnt" ); - FT_Service_TTCMaps service = - (FT_Service_TTCMaps)ft_module_get_service( sfnt, - FT_SERVICE_ID_TT_CMAP ); - - - if ( service && service->get_cmap_info ) - error = service->get_cmap_info( charmap, cmap_info ); - } - - return error; - } - - - static const FT_Service_TTCMapsRec cff_service_get_cmap_info = - { - (TT_CMap_Info_GetFunc)cff_get_cmap_info - }; - - - /* - * CID INFO SERVICE - * - */ - static FT_Error - cff_get_ros( CFF_Face face, - const char* *registry, - const char* *ordering, - FT_Int *supplement ) - { - FT_Error error = CFF_Err_Ok; - CFF_Font cff = (CFF_Font)face->extra.data; - - - if ( cff ) - { - CFF_FontRecDict dict = &cff->top_font.font_dict; - FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; - - - if ( dict->cid_registry == 0xFFFFU ) - { - error = CFF_Err_Invalid_Argument; - goto Fail; - } - - if ( registry ) - { - if ( cff->registry == NULL ) - cff->registry = cff_index_get_sid_string( &cff->string_index, - dict->cid_registry, - psnames ); - *registry = cff->registry; - } - - if ( ordering ) - { - if ( cff->ordering == NULL ) - cff->ordering = cff_index_get_sid_string( &cff->string_index, - dict->cid_ordering, - psnames ); - *ordering = cff->ordering; - } - - if ( supplement ) - *supplement = dict->cid_supplement; - } - - Fail: - return error; - } - - - static const FT_Service_CIDRec cff_service_cid_info = - { - (FT_CID_GetRegistryOrderingSupplementFunc)cff_get_ros - }; - - - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /**** ****/ - /**** ****/ - /**** D R I V E R I N T E R F A C E ****/ - /**** ****/ - /**** ****/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - static const FT_ServiceDescRec cff_services[] = - { - { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF }, - { FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info }, - { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name }, -#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES - { FT_SERVICE_ID_GLYPH_DICT, &cff_service_glyph_dict }, -#endif - { FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info }, - { FT_SERVICE_ID_CID, &cff_service_cid_info }, - { NULL, NULL } - }; - - - FT_CALLBACK_DEF( FT_Module_Interface ) - cff_get_interface( FT_Module driver, /* CFF_Driver */ - const char* module_interface ) - { - FT_Module sfnt; - FT_Module_Interface result; - - - result = ft_service_list_lookup( cff_services, module_interface ); - if ( result != NULL ) - return result; - - /* we pass our request to the `sfnt' module */ - sfnt = FT_Get_Module( driver->library, "sfnt" ); - - return sfnt ? sfnt->clazz->get_interface( sfnt, module_interface ) : 0; - } - - - /* The FT_DriverInterface structure is defined in ftdriver.h. */ - - FT_CALLBACK_TABLE_DEF - const FT_Driver_ClassRec cff_driver_class = - { - /* begin with the FT_Module_Class fields */ - { - FT_MODULE_FONT_DRIVER | - FT_MODULE_DRIVER_SCALABLE | - FT_MODULE_DRIVER_HAS_HINTER, - - sizeof( CFF_DriverRec ), - "cff", - 0x10000L, - 0x20000L, - - 0, /* module-specific interface */ - - cff_driver_init, - cff_driver_done, - cff_get_interface, - }, - - /* now the specific driver fields */ - sizeof( TT_FaceRec ), - sizeof( CFF_SizeRec ), - sizeof( CFF_GlyphSlotRec ), - - cff_face_init, - cff_face_done, - cff_size_init, - cff_size_done, - cff_slot_init, - cff_slot_done, - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - ft_stub_set_char_sizes, - ft_stub_set_pixel_sizes, -#endif - - Load_Glyph, - - cff_get_kerning, - 0, /* FT_Face_AttachFunc */ - cff_get_advances, /* FT_Face_GetAdvancesFunc */ - - cff_size_request, - -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - cff_size_select -#else - 0 /* FT_Size_SelectFunc */ -#endif - }; - - -/* END */ |