28534d616b
include/freetype/config/ftheader.h, include/freetype/freetype.h,
src/base/Jamfile, src/base/rules.mk, src/cff/cffdrivr.c,
src/cff/cffgload.c, src/cff/cffgload.h, src/truetype/ttdriver.c,
src/truetype/ttgload.h, src/truetype/ttgload.c, src/type1/t1driver.c,
src/type1/t1gload.h, src/type1/t1gload.c:
Add a new header named FT_ADVANCES_H declaring some new APIs
to extract the advances of one or more glyphs without necessarily
loading their outlines. Also provide 'fast loaders' for the
TrueType, Type1 and CFF font drivers (more to come later)
* autogen.sh: add checks for minimum version of the 'autotools'
stuff.
314 lines
9.6 KiB
C
314 lines
9.6 KiB
C
/***************************************************************************/
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/* */
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/* t1driver.c */
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/* */
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/* Type 1 driver interface (body). */
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/* */
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/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#include <ft2build.h>
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#include "t1driver.h"
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#include "t1gload.h"
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#include "t1load.h"
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#include "t1errors.h"
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#ifndef T1_CONFIG_OPTION_NO_AFM
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#include "t1afm.h"
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#endif
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#include FT_INTERNAL_DEBUG_H
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#include FT_INTERNAL_STREAM_H
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#include FT_SERVICE_MULTIPLE_MASTERS_H
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#include FT_SERVICE_GLYPH_DICT_H
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#include FT_SERVICE_XFREE86_NAME_H
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#include FT_SERVICE_POSTSCRIPT_NAME_H
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#include FT_SERVICE_POSTSCRIPT_CMAPS_H
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#include FT_SERVICE_POSTSCRIPT_INFO_H
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#include FT_SERVICE_KERNING_H
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/*************************************************************************/
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/* */
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/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
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/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
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/* messages during execution. */
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/* */
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_t1driver
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/*
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* GLYPH DICT SERVICE
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*
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*/
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static FT_Error
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t1_get_glyph_name( T1_Face face,
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FT_UInt glyph_index,
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FT_Pointer buffer,
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FT_UInt buffer_max )
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{
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FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max );
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return T1_Err_Ok;
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}
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static FT_UInt
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t1_get_name_index( T1_Face face,
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FT_String* glyph_name )
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{
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FT_Int i;
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FT_String* gname;
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for ( i = 0; i < face->type1.num_glyphs; i++ )
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{
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gname = face->type1.glyph_names[i];
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if ( !ft_strcmp( glyph_name, gname ) )
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return (FT_UInt)i;
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}
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return 0;
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}
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static const FT_Service_GlyphDictRec t1_service_glyph_dict =
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{
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(FT_GlyphDict_GetNameFunc) t1_get_glyph_name,
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(FT_GlyphDict_NameIndexFunc)t1_get_name_index
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};
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/*
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* POSTSCRIPT NAME SERVICE
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*
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*/
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static const char*
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t1_get_ps_name( T1_Face face )
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{
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return (const char*) face->type1.font_name;
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}
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static const FT_Service_PsFontNameRec t1_service_ps_name =
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{
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(FT_PsName_GetFunc)t1_get_ps_name
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};
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/*
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* MULTIPLE MASTERS SERVICE
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*
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*/
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#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
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static const FT_Service_MultiMastersRec t1_service_multi_masters =
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{
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(FT_Get_MM_Func) T1_Get_Multi_Master,
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(FT_Set_MM_Design_Func) T1_Set_MM_Design,
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(FT_Set_MM_Blend_Func) T1_Set_MM_Blend,
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(FT_Get_MM_Var_Func) T1_Get_MM_Var,
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(FT_Set_Var_Design_Func)T1_Set_Var_Design
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};
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#endif
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/*
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* POSTSCRIPT INFO SERVICE
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*
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*/
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static FT_Error
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t1_ps_get_font_info( FT_Face face,
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PS_FontInfoRec* afont_info )
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{
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*afont_info = ((T1_Face)face)->type1.font_info;
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return 0;
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}
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static FT_Int
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t1_ps_has_glyph_names( FT_Face face )
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{
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FT_UNUSED( face );
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return 1;
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}
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static FT_Error
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t1_ps_get_font_private( FT_Face face,
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PS_PrivateRec* afont_private )
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{
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*afont_private = ((T1_Face)face)->type1.private_dict;
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return 0;
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}
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static const FT_Service_PsInfoRec t1_service_ps_info =
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{
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(PS_GetFontInfoFunc) t1_ps_get_font_info,
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(PS_HasGlyphNamesFunc) t1_ps_has_glyph_names,
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(PS_GetFontPrivateFunc)t1_ps_get_font_private,
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};
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#ifndef T1_CONFIG_OPTION_NO_AFM
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static const FT_Service_KerningRec t1_service_kerning =
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{
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T1_Get_Track_Kerning,
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};
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#endif
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/*
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* SERVICE LIST
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*
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*/
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static const FT_ServiceDescRec t1_services[] =
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{
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{ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t1_service_ps_name },
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{ FT_SERVICE_ID_GLYPH_DICT, &t1_service_glyph_dict },
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{ FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TYPE_1 },
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{ FT_SERVICE_ID_POSTSCRIPT_INFO, &t1_service_ps_info },
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#ifndef T1_CONFIG_OPTION_NO_AFM
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{ FT_SERVICE_ID_KERNING, &t1_service_kerning },
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#endif
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#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
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{ FT_SERVICE_ID_MULTI_MASTERS, &t1_service_multi_masters },
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#endif
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{ NULL, NULL }
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};
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static FT_Module_Interface
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Get_Interface( FT_Driver driver,
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const FT_String* t1_interface )
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{
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FT_UNUSED( driver );
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return ft_service_list_lookup( t1_services, t1_interface );
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}
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#ifndef T1_CONFIG_OPTION_NO_AFM
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/*************************************************************************/
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/* */
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/* <Function> */
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/* Get_Kerning */
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/* */
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/* <Description> */
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/* A driver method used to return the kerning vector between two */
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/* glyphs of the same face. */
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/* */
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/* <Input> */
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/* face :: A handle to the source face object. */
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/* */
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/* left_glyph :: The index of the left glyph in the kern pair. */
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/* */
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/* right_glyph :: The index of the right glyph in the kern pair. */
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/* */
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/* <Output> */
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/* kerning :: The kerning vector. This is in font units for */
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/* scalable formats, and in pixels for fixed-sizes */
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/* formats. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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/* <Note> */
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/* Only horizontal layouts (left-to-right & right-to-left) are */
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/* supported by this function. Other layouts, or more sophisticated */
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/* kernings are out of scope of this method (the basic driver */
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/* interface is meant to be simple). */
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/* */
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/* They can be implemented by format-specific interfaces. */
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/* */
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static FT_Error
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Get_Kerning( T1_Face face,
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FT_UInt left_glyph,
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FT_UInt right_glyph,
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FT_Vector* kerning )
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{
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kerning->x = 0;
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kerning->y = 0;
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if ( face->afm_data )
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T1_Get_Kerning( (AFM_FontInfo)face->afm_data,
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left_glyph,
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right_glyph,
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kerning );
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return T1_Err_Ok;
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}
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#endif /* T1_CONFIG_OPTION_NO_AFM */
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FT_CALLBACK_TABLE_DEF
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const FT_Driver_ClassRec t1_driver_class =
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{
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{
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FT_MODULE_FONT_DRIVER |
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FT_MODULE_DRIVER_SCALABLE |
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FT_MODULE_DRIVER_HAS_HINTER,
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sizeof( FT_DriverRec ),
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"type1",
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0x10000L,
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0x20000L,
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0, /* format interface */
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(FT_Module_Constructor)T1_Driver_Init,
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(FT_Module_Destructor) T1_Driver_Done,
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(FT_Module_Requester) Get_Interface,
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},
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sizeof( T1_FaceRec ),
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sizeof( T1_SizeRec ),
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sizeof( T1_GlyphSlotRec ),
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(FT_Face_InitFunc) T1_Face_Init,
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(FT_Face_DoneFunc) T1_Face_Done,
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(FT_Size_InitFunc) T1_Size_Init,
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(FT_Size_DoneFunc) T1_Size_Done,
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(FT_Slot_InitFunc) T1_GlyphSlot_Init,
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(FT_Slot_DoneFunc) T1_GlyphSlot_Done,
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#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
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ft_stub_set_char_sizes,
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ft_stub_set_pixel_sizes,
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#endif
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(FT_Slot_LoadFunc) T1_Load_Glyph,
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#ifdef T1_CONFIG_OPTION_NO_AFM
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(FT_Face_GetKerningFunc) 0,
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(FT_Face_AttachFunc) 0,
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#else
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(FT_Face_GetKerningFunc) Get_Kerning,
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(FT_Face_AttachFunc) T1_Read_Metrics,
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#endif
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(FT_Face_GetAdvancesFunc) T1_Get_Advances,
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(FT_Size_RequestFunc) T1_Size_Request,
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(FT_Size_SelectFunc) 0
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};
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/* END */
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