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kc3-lang/freetype/src/autofit/afmodule.c
Werner Lemberg
- src/autofit/afmodule.c
-
/***************************************************************************/ /* */ /* afmodule.c */ /* */ /* Auto-fitter module implementation (body). */ /* */ /* Copyright 2003-2006, 2009, 2011-2013 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 "afglobal.h" #include "afmodule.h" #include "afloader.h" #include "aferrors.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_get_face_globals( FT_Face face, AF_FaceGlobals* aglobals, AF_Module module ) { FT_Error error = FT_Err_Ok; AF_FaceGlobals globals; if ( !face ) return FT_THROW( Invalid_Argument ); globals = (AF_FaceGlobals)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( face, &globals, module ); if ( !error ) { face->autohint.data = (FT_Pointer)globals; face->autohint.finalizer = (FT_Generic_Finalizer)af_face_globals_free; } } if ( !error ) *aglobals = globals; return error; } FT_Error af_property_set( FT_Module ft_module, const char* property_name, const void* value ) { FT_Error error = FT_Err_Ok; AF_Module module = (AF_Module)ft_module; if ( !ft_strcmp( property_name, "fallback-script" ) ) { FT_UInt* fallback_script = (FT_UInt*)value; module->fallback_script = *fallback_script; return error; } else if ( !ft_strcmp( property_name, "increase-x-height" ) ) { FT_Prop_IncreaseXHeight* prop = (FT_Prop_IncreaseXHeight*)value; AF_FaceGlobals globals; error = af_property_get_face_globals( prop->face, &globals, module ); if ( !error ) globals->increase_x_height = prop->limit; return error; } FT_TRACE0(( "af_property_set: missing property `%s'\n", property_name )); return FT_THROW( Missing_Property ); } FT_Error af_property_get( FT_Module ft_module, const char* property_name, void* value ) { FT_Error error = FT_Err_Ok; AF_Module module = (AF_Module)ft_module; FT_UInt fallback_script = module->fallback_script; if ( !ft_strcmp( property_name, "glyph-to-script-map" ) ) { FT_Prop_GlyphToScriptMap* prop = (FT_Prop_GlyphToScriptMap*)value; AF_FaceGlobals globals; error = af_property_get_face_globals( prop->face, &globals, module ); if ( !error ) prop->map = globals->glyph_scripts; return error; } else if ( !ft_strcmp( property_name, "fallback-script" ) ) { FT_UInt* val = (FT_UInt*)value; *val = fallback_script; return error; } else if ( !ft_strcmp( property_name, "increase-x-height" ) ) { FT_Prop_IncreaseXHeight* prop = (FT_Prop_IncreaseXHeight*)value; AF_FaceGlobals globals; error = af_property_get_face_globals( prop->face, &globals, module ); if ( !error ) prop->limit = globals->increase_x_height; return error; } FT_TRACE0(( "af_property_get: missing property `%s'\n", property_name )); return FT_THROW( 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 ); } FT_CALLBACK_DEF( FT_Error ) af_autofitter_init( FT_Module ft_module ) /* AF_Module */ { AF_Module module = (AF_Module)ft_module; module->fallback_script = AF_SCRIPT_FALLBACK; return af_loader_init( module ); } FT_CALLBACK_DEF( void ) af_autofitter_done( FT_Module ft_module ) /* AF_Module */ { AF_Module module = (AF_Module)ft_module; af_loader_done( module ); } 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, 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 */