diff options
Diffstat (limited to 'src/3rdparty/freetype/src/autofit/afmodule.c')
| -rw-r--r-- | src/3rdparty/freetype/src/autofit/afmodule.c | 271 |
1 files changed, 243 insertions, 28 deletions
diff --git a/src/3rdparty/freetype/src/autofit/afmodule.c b/src/3rdparty/freetype/src/autofit/afmodule.c index ec2d707c9f..641e03ea2b 100644 --- a/src/3rdparty/freetype/src/autofit/afmodule.c +++ b/src/3rdparty/freetype/src/autofit/afmodule.c @@ -4,7 +4,7 @@ /* */ /* Auto-fitter module implementation (body). */ /* */ -/* Copyright 2003, 2004, 2005, 2006 by */ +/* Copyright 2003-2006, 2009, 2011-2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -16,12 +16,13 @@ /***************************************************************************/ +#include "afglobal.h" #include "afmodule.h" #include "afloader.h" +#include "aferrors.h" #include "afpic.h" -#ifdef AF_DEBUG - int _af_debug; +#ifdef FT_DEBUG_AUTOFIT int _af_debug_disable_horz_hints; int _af_debug_disable_vert_hints; int _af_debug_disable_blue_hints; @@ -29,66 +30,280 @@ #endif #include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_AUTOHINTER_H +#include FT_SERVICE_PROPERTIES_H - typedef struct FT_AutofitterRec_ + /*************************************************************************/ + /* */ + /* 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 + + + static 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_Face_Handle ); + + globals = (AF_FaceGlobals)face->autohint.data; + if ( !globals ) + { + /* trigger computation of the global style 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; + } + + + static 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; + + FT_UInt ss; + + + /* We translate the fallback script to a fallback style that uses */ + /* `fallback-script' as its script and `AF_COVERAGE_NONE' as its */ + /* coverage value. */ + for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ ) + { + AF_StyleClass style_class = AF_STYLE_CLASSES_GET[ss]; + + + if ( (FT_UInt)style_class->script == *fallback_script && + style_class->coverage == AF_COVERAGE_DEFAULT ) + { + module->fallback_style = ss; + break; + } + } + + if ( !AF_STYLE_CLASSES_GET[ss] ) + { + FT_TRACE0(( "af_property_set: Invalid value %d for property `%s'\n", + fallback_script, property_name )); + return FT_THROW( Invalid_Argument ); + } + + return error; + } + else if ( !ft_strcmp( property_name, "default-script" ) ) + { + FT_UInt* default_script = (FT_UInt*)value; + + + module->default_script = *default_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 ); + } + + + static 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_style = module->fallback_style; + FT_UInt default_script = module->default_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_styles; + + return error; + } + else if ( !ft_strcmp( property_name, "fallback-script" ) ) + { + FT_UInt* val = (FT_UInt*)value; + + AF_StyleClass style_class = AF_STYLE_CLASSES_GET[fallback_style]; + + + *val = style_class->script; + + return error; + } + else if ( !ft_strcmp( property_name, "default-script" ) ) + { + FT_UInt* val = (FT_UInt*)value; + + + *val = default_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 ) { - FT_ModuleRec root; - AF_LoaderRec loader[1]; + /* AF_SERVICES_GET dereferences `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 - } FT_AutofitterRec, *FT_Autofitter; + return ft_service_list_lookup( AF_SERVICES_GET, module_interface ); + } FT_CALLBACK_DEF( FT_Error ) - af_autofitter_init( FT_Autofitter module ) + af_autofitter_init( FT_Module ft_module ) /* AF_Module */ { - return af_loader_init( module->loader, module->root.library->memory ); + AF_Module module = (AF_Module)ft_module; + + + module->fallback_style = AF_STYLE_FALLBACK; + module->default_script = AF_SCRIPT_DEFAULT; + + return af_loader_init( module ); } FT_CALLBACK_DEF( void ) - af_autofitter_done( FT_Autofitter module ) + af_autofitter_done( FT_Module ft_module ) /* AF_Module */ { - af_loader_done( module->loader ); + AF_Module module = (AF_Module)ft_module; + + + af_loader_done( module ); } FT_CALLBACK_DEF( FT_Error ) - af_autofitter_load_glyph( FT_Autofitter module, - FT_GlyphSlot slot, - FT_Size size, - FT_UInt glyph_index, - FT_Int32 load_flags ) + 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, + return af_loader_load_glyph( module, slot->face, glyph_index, load_flags ); } - FT_DEFINE_AUTOHINTER_SERVICE(af_autofitter_service, - NULL, - NULL, - NULL, - (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph - ) + 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_DEFINE_MODULE( + autofit_module_class, FT_MODULE_HINTER, - sizeof ( FT_AutofitterRec ), + sizeof ( AF_ModuleRec ), "autofitter", 0x10000L, /* version 1.0 of the autofitter */ 0x20000L, /* requires FreeType 2.0 or above */ - (const void*)&AF_AF_AUTOFITTER_SERVICE_GET, + (const void*)&AF_INTERFACE_GET, (FT_Module_Constructor)af_autofitter_init, (FT_Module_Destructor) af_autofitter_done, - (FT_Module_Requester) NULL - ) + (FT_Module_Requester) af_get_interface ) /* END */ |