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authorBo Xu <bo_xu@foxitsoftware.com>2014-12-19 14:29:17 -0800
committerBo Xu <bo_xu@foxitsoftware.com>2014-12-19 15:03:12 -0800
commit4c764f391a4cfb82c81117cf9f249a8598be1cc5 (patch)
tree7d0cc6e2db4182a12ecab5f528c9bfccb4b7df6e /third_party/freetype/src/sfnt/sfdriver.c
parentd44e39279b08c0954f07283b4fb3e7f3e292e4de (diff)
downloadpdfium-4c764f391a4cfb82c81117cf9f249a8598be1cc5.tar.xz
XFA: merge patch from CL 815103002
Update freetype to 2.5.4. Put freetype into third_party directory, cleaning up header files. Previously freetype header files are in core/src/fxge/freetype and core/include/thirdparties. There were also multiple fx_freetype.h. This patch removes the additional Foxit wrapper to make further update easier. Notice, for original freetype source code, the following files are modified and need to be updated accordingly in future update: third_party/freetype/include/config/ftmodule.h third_party/freetype/include/config/ftoption.h BUG=407341 R=thestig@chromium.org Review URL: https://codereview.chromium.org/815103002
Diffstat (limited to 'third_party/freetype/src/sfnt/sfdriver.c')
-rw-r--r--third_party/freetype/src/sfnt/sfdriver.c529
1 files changed, 529 insertions, 0 deletions
diff --git a/third_party/freetype/src/sfnt/sfdriver.c b/third_party/freetype/src/sfnt/sfdriver.c
new file mode 100644
index 0000000000..bd8dd2e571
--- /dev/null
+++ b/third_party/freetype/src/sfnt/sfdriver.c
@@ -0,0 +1,529 @@
+/***************************************************************************/
+/* */
+/* sfdriver.c */
+/* */
+/* High-level SFNT driver interface (body). */
+/* */
+/* Copyright 1996-2007, 2009-2014 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 : NULL;
+ break;
+
+ case FT_SFNT_OS2:
+ table = face->os2.version == 0xFFFFU ? NULL : &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 : NULL;
+ break;
+
+ default:
+ table = NULL;
+ }
+
+ 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 FT_THROW( Invalid_Argument );
+
+ if ( !tag )
+ *length = face->num_tables;
+ else
+ {
+ if ( idx >= face->num_tables )
+ return FT_THROW( Table_Missing );
+
+ *tag = face->dir_tables[idx].Tag;
+ *offset = face->dir_tables[idx].Offset;
+ *length = face->dir_tables[idx].Length;
+ }
+
+ return FT_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 = FT_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;
+
+
+ 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 = FT_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", &registry );
+ 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 = FT_THROW( 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, &SFNT_SERVICE_SFNT_TABLE_GET,
+ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
+ FT_SERVICE_ID_GLYPH_DICT, &SFNT_SERVICE_GLYPH_DICT_GET,
+ FT_SERVICE_ID_BDF, &SFNT_SERVICE_BDF_GET,
+ FT_SERVICE_ID_TT_CMAP, &TT_SERVICE_CMAP_INFO_GET )
+#elif defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES
+ FT_DEFINE_SERVICEDESCREC4(
+ sfnt_services,
+ FT_SERVICE_ID_SFNT_TABLE, &SFNT_SERVICE_SFNT_TABLE_GET,
+ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
+ FT_SERVICE_ID_GLYPH_DICT, &SFNT_SERVICE_GLYPH_DICT_GET,
+ FT_SERVICE_ID_TT_CMAP, &TT_SERVICE_CMAP_INFO_GET )
+#elif defined TT_CONFIG_OPTION_BDF
+ FT_DEFINE_SERVICEDESCREC4(
+ sfnt_services,
+ FT_SERVICE_ID_SFNT_TABLE, &SFNT_SERVICE_SFNT_TABLE_GET,
+ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
+ FT_SERVICE_ID_BDF, &SFNT_SERVICE_BDF_GET,
+ FT_SERVICE_ID_TT_CMAP, &TT_SERVICE_CMAP_INFO_GET )
+#else
+ FT_DEFINE_SERVICEDESCREC3(
+ sfnt_services,
+ FT_SERVICE_ID_SFNT_TABLE, &SFNT_SERVICE_SFNT_TABLE_GET,
+ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
+ FT_SERVICE_ID_TT_CMAP, &TT_SERVICE_CMAP_INFO_GET )
+#endif
+
+
+ FT_CALLBACK_DEF( FT_Module_Interface )
+ sfnt_get_interface( FT_Module module,
+ const char* module_interface )
+ {
+ /* SFNT_SERVICES_GET derefers `library' in PIC mode */
+#ifdef FT_CONFIG_OPTION_PIC
+ FT_Library library;
+
+
+ if ( !module )
+ return NULL;
+ library = module->library;
+ if ( !library )
+ return NULL;
+#else
+ FT_UNUSED( module );
+#endif
+
+ return ft_service_list_lookup( SFNT_SERVICES_GET, module_interface );
+ }
+
+
+#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
+#define PUT_EMBEDDED_BITMAPS( a ) a
+#else
+#define PUT_EMBEDDED_BITMAPS( a ) NULL
+#endif
+
+#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
+#define PUT_PS_NAMES( a ) a
+#else
+#define PUT_PS_NAMES( a ) NULL
+#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_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_kern,
+ tt_face_load_gasp,
+ tt_face_load_pclt,
+
+ /* see `ttload.h' */
+ PUT_EMBEDDED_BITMAPS( tt_face_load_bhed ),
+
+ PUT_EMBEDDED_BITMAPS( tt_face_load_sbit_image ),
+
+ /* see `ttpost.h' */
+ PUT_PS_NAMES( tt_face_get_ps_name ),
+ PUT_PS_NAMES( tt_face_free_ps_names ),
+
+ /* 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_sbit ),
+ PUT_EMBEDDED_BITMAPS( tt_face_free_sbit ),
+
+ 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*)&SFNT_INTERFACE_GET, /* module specific interface */
+
+ (FT_Module_Constructor)0,
+ (FT_Module_Destructor) 0,
+ (FT_Module_Requester) sfnt_get_interface )
+
+
+/* END */