freetype2/src/autofit/afmodule.c

208 lines
6.1 KiB
C
Raw Normal View History

/***************************************************************************/
/* */
/* afmodule.c */
/* */
/* Auto-fitter module implementation (body). */
/* */
2012-08-23 13:34:26 +02:00
/* 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. */
/* */
/***************************************************************************/
2004-01-16 10:51:00 +01:00
#include "afmodule.h"
#include "afloader.h"
Position Independent Code (PIC) support in autofit module. * include/freetype/internal/autohint.h add macros to init instances of FT_AutoHinter_ServiceRec. * src/autofit/afmodule.h declare autofit_module_class using macros from ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy functions will be declared. * src/autofit/afmodule.c when FT_CONFIG_OPTION_PIC is defined af_autofitter_service and autofit_module_class structs will have functions to init or create and destroy them instead of being allocated in the global scope. And macros will be used from afpic.h in order to access them. * src/autofit/aftypes.h add macros to init and declare instances of AF_ScriptClassRec. * src/autofit/afcjk.h declare af_cjk_script_class using macros from aftypes.h, when FT_CONFIG_OPTION_PIC is defined init function will be declared. * src/autofit/afcjk.c when FT_CONFIG_OPTION_PIC is defined af_cjk_script_class struct will have function to init it instead of being allocated in the global scope. * src/autofit/afdummy.h declare af_dummy_script_class using macros from aftypes.h, when FT_CONFIG_OPTION_PIC is defined init function will be declared. * src/autofit/afdummy.c when FT_CONFIG_OPTION_PIC is defined af_dummy_script_class struct will have function to init it instead of being allocated in the global scope. * src/autofit/afindic.h declare af_indic_script_class using macros from aftypes.h, when FT_CONFIG_OPTION_PIC is defined init function will be declared. * src/autofit/afindic.c when FT_CONFIG_OPTION_PIC is defined af_indic_script_class struct will have function to init it instead of being allocated in the global scope. * src/autofit/aflatin.h declare af_latin_script_class using macros from aftypes.h, when FT_CONFIG_OPTION_PIC is defined init function will be declared. * src/autofit/aflatin.c when FT_CONFIG_OPTION_PIC is defined af_latin_script_class struct will have function to init it instead of being allocated in the global scope. Change af_latin_blue_chars to be PIC-compatible by being a two dimentional array rather than array of pointers. * src/autofit/aflatin2.h declare af_latin2_script_class using macros from aftypes.h, when FT_CONFIG_OPTION_PIC is defined init function will be declared. * src/autofit/aflatin2.c when FT_CONFIG_OPTION_PIC is defined af_latin2_script_class struct will have function to init it instead of being allocated in the global scope. Change af_latin2_blue_chars to be PIC-compatible by being a two dimentional array rather than array of pointers. * src/autofit/afglobal.c when FT_CONFIG_OPTION_PIC is defined af_script_classes array initialization was moved to afpic.c and is later refered using macros defeined in afpic.h. New Files: * src/autofit/afpic.h declare struct to hold PIC globals for autofit module and macros to access them. * src/autofit/afpic.c implement functions to allocate, destroy and initialize PIC globals for autofit module. * src/autofit/autofit.c add new file to build: afpic.c. * src/autofit/jamfile add new files to FT2_MULTI build: afpic.c.
2009-04-05 17:23:38 +02:00
#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 );
}
2004-01-16 10:51:00 +01:00
2012-09-11 19:45:36 +02:00
/*
* 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_
2004-01-16 10:51:00 +01:00
{
FT_ModuleRec root;
AF_LoaderRec loader[1];
2004-01-16 10:51:00 +01:00
} AF_ModuleRec, *AF_Module;
2004-01-16 10:51:00 +01:00
FT_CALLBACK_DEF( FT_Error )
af_autofitter_init( AF_Module module )
{
return af_loader_init( module->loader, module->root.library->memory );
2004-01-16 10:51:00 +01:00
}
FT_CALLBACK_DEF( void )
af_autofitter_done( AF_Module module )
2004-01-16 10:51:00 +01:00
{
af_loader_done( module->loader );
}
2004-01-16 10:51:00 +01:00
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 )
{
2004-04-22 00:27:11 +02:00
FT_UNUSED( size );
return af_loader_load_glyph( module->loader, slot->face,
glyph_index, load_flags );
}
2004-01-16 10:51:00 +01:00
FT_DEFINE_AUTOHINTER_INTERFACE(
af_autofitter_interface,
2012-08-23 13:34:26 +02:00
NULL, /* reset_face */
NULL, /* get_global_hints */
NULL, /* done_global_hints */
(FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph ) /* load_glyph */
2004-01-16 10:51:00 +01:00
2011-02-26 17:32:38 +01:00
FT_DEFINE_MODULE(
autofit_module_class,
2004-01-16 10:51:00 +01:00
FT_MODULE_HINTER,
sizeof ( AF_ModuleRec ),
2004-01-16 10:51:00 +01:00
"autofitter",
0x10000L, /* version 1.0 of the autofitter */
0x20000L, /* requires FreeType 2.0 or above */
2004-01-16 10:51:00 +01:00
(const void*)&AF_INTERFACE_GET,
2004-01-16 10:51:00 +01:00
(FT_Module_Constructor)af_autofitter_init,
(FT_Module_Destructor) af_autofitter_done,
(FT_Module_Requester) af_get_interface )
2004-01-16 10:51:00 +01:00
/* END */