ref: 6d29c5cbe3abe578430fcc5f90a943740d539f90
dir: /src/autofit/afmodule.c/
/***************************************************************************/
/* */
/* afmodule.c */
/* */
/* Auto-fitter module implementation (body). */
/* */
/* Copyright 2003-2006, 2009, 2011-2012 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 "afmodule.h"
#include "afloader.h"
#include "afpic.h"
#ifdef FT_DEBUG_AUTOFIT
int _af_debug_disable_horz_hints;
int _af_debug_disable_vert_hints;
int _af_debug_disable_blue_hints;
void* _af_debug_hints;
#endif
#include FT_INTERNAL_OBJECTS_H
#include FT_INTERNAL_DEBUG_H
#include FT_AUTOHINTER_H
#include FT_SERVICE_PROPERTIES_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_afmodule
FT_Error
af_property_set( FT_Library library,
const char* property_name,
const void* value )
{
FT_UNUSED( library );
FT_UNUSED( value );
FT_TRACE0(( "af_property_get: missing property `%s'\n",
property_name ));
return FT_Err_Missing_Property;
}
FT_Error
af_property_get( FT_Library library,
const char* property_name,
void* value )
{
FT_Error error = FT_Err_Ok;
FT_UNUSED( library );
if ( !ft_strcmp( property_name, "glyph-to-script-map" ) )
{
FT_Prop_GlyphToScriptMap* prop = (FT_Prop_GlyphToScriptMap*)value;
AF_FaceGlobals globals;
if ( !prop->face )
return FT_Err_Invalid_Argument;
globals = (AF_FaceGlobals)prop->face->autohint.data;
if ( !globals )
{
/* trigger computation of the global script data */
/* in case it hasn't been done yet */
error = af_face_globals_new( prop->face, &globals );
if ( !error )
{
prop->face->autohint.data =
(FT_Pointer)globals;
prop->face->autohint.finalizer =
(FT_Generic_Finalizer)af_face_globals_free;
}
}
if ( !error )
prop->map = globals->glyph_scripts;
return error;
}
FT_TRACE0(( "af_property_get: missing property `%s'\n",
property_name ));
return FT_Err_Missing_Property;
}
FT_DEFINE_SERVICE_PROPERTIESREC(
af_service_properties,
(FT_Properties_SetFunc)af_property_set,
(FT_Properties_GetFunc)af_property_get )
FT_DEFINE_SERVICEDESCREC1(
af_services,
FT_SERVICE_ID_PROPERTIES, &AF_SERVICE_PROPERTIES_GET )
FT_CALLBACK_DEF( FT_Module_Interface )
af_get_interface( FT_Module module,
const char* module_interface )
{
/* AF_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( AF_SERVICES_GET, module_interface );
}
/*
* This is the `extended' FT_Module structure which holds the
* autofitter's global data (in `loader'). Right before hinting a glyph,
* the data specific to the glyph's face (blue zones, stem widths, etc.)
* are `swapped in' in function `af_loader_reset'.
*/
typedef struct AF_ModuleRec_
{
FT_ModuleRec root;
AF_LoaderRec loader[1];
} AF_ModuleRec, *AF_Module;
FT_CALLBACK_DEF( FT_Error )
af_autofitter_init( AF_Module module )
{
return af_loader_init( module->loader, module->root.library->memory );
}
FT_CALLBACK_DEF( void )
af_autofitter_done( AF_Module module )
{
af_loader_done( module->loader );
}
FT_CALLBACK_DEF( FT_Error )
af_autofitter_load_glyph( AF_Module module,
FT_GlyphSlot slot,
FT_Size size,
FT_UInt glyph_index,
FT_Int32 load_flags )
{
FT_UNUSED( size );
return af_loader_load_glyph( module->loader, slot->face,
glyph_index, load_flags );
}
FT_DEFINE_AUTOHINTER_INTERFACE(
af_autofitter_interface,
NULL, /* reset_face */
NULL, /* get_global_hints */
NULL, /* done_global_hints */
(FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph ) /* load_glyph */
FT_DEFINE_MODULE(
autofit_module_class,
FT_MODULE_HINTER,
sizeof ( AF_ModuleRec ),
"autofitter",
0x10000L, /* version 1.0 of the autofitter */
0x20000L, /* requires FreeType 2.0 or above */
(const void*)&AF_INTERFACE_GET,
(FT_Module_Constructor)af_autofitter_init,
(FT_Module_Destructor) af_autofitter_done,
(FT_Module_Requester) af_get_interface )
/* END */