ftobjs.c File Reference

#include <ft2build.h>

Include dependency graph for ftobjs.c:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Macros
#define	GRID_FIT_METRICS
#define	FT_COMPONENT   trace_objs
#define	FREETYPE_VER_FIXED

Functions
static FT_Error	ft_open_face_internal (FT_Library library, const FT_Open_Args *args, FT_Long face_index, FT_Face *aface, FT_Bool test_mac_fonts)
	ft_service_list_lookup (FT_ServiceDesc service_descriptors, const char *service_id)
	ft_validator_init (FT_Validator valid, const FT_Byte *base, const FT_Byte *limit, FT_ValidationLevel level)
	ft_validator_run (FT_Validator valid)
	ft_validator_error (FT_Validator valid, FT_Error error)
	FT_Stream_New (FT_Library library, const FT_Open_Args *args, FT_Stream *astream)
	FT_Stream_Free (FT_Stream stream, FT_Int external)
static FT_Error	ft_glyphslot_init (FT_GlyphSlot slot)
	ft_glyphslot_free_bitmap (FT_GlyphSlot slot)
	ft_glyphslot_preset_bitmap (FT_GlyphSlot slot, FT_Render_Mode mode, const FT_Vector *origin)
	ft_glyphslot_set_bitmap (FT_GlyphSlot slot, FT_Byte *buffer)
	ft_glyphslot_alloc_bitmap (FT_GlyphSlot slot, FT_ULong size)
static void	ft_glyphslot_clear (FT_GlyphSlot slot)
static void	ft_glyphslot_done (FT_GlyphSlot slot)
	FT_New_GlyphSlot (FT_Face face, FT_GlyphSlot *aslot)
	FT_Done_GlyphSlot (FT_GlyphSlot slot)
	FT_Set_Transform (FT_Face face, FT_Matrix *matrix, FT_Vector *delta)
static FT_Renderer	ft_lookup_glyph_renderer (FT_GlyphSlot slot)
static void	ft_glyphslot_grid_fit_metrics (FT_GlyphSlot slot, FT_Bool vertical)
	FT_Load_Glyph (FT_Face face, FT_UInt glyph_index, FT_Int32 load_flags)
	FT_Load_Char (FT_Face face, FT_ULong char_code, FT_Int32 load_flags)
static void	destroy_size (FT_Memory memory, FT_Size size, FT_Driver driver)
static void	ft_cmap_done_internal (FT_CMap cmap)
static void	destroy_charmaps (FT_Face face, FT_Memory memory)
static void	destroy_face (FT_Memory memory, FT_Face face, FT_Driver driver)
static void	Destroy_Driver (FT_Driver driver)
static FT_Error	find_unicode_charmap (FT_Face face)
static FT_CharMap	find_variant_selector_charmap (FT_Face face)
static FT_Error	open_face (FT_Driver driver, FT_Stream *astream, FT_Bool external_stream, FT_Long face_index, FT_Int num_params, FT_Parameter *params, FT_Face *aface)
	FT_New_Face (FT_Library library, const char *pathname, FT_Long face_index, FT_Face *aface)
	FT_New_Memory_Face (FT_Library library, const FT_Byte *file_base, FT_Long file_size, FT_Long face_index, FT_Face *aface)
	FT_Open_Face (FT_Library library, const FT_Open_Args *args, FT_Long face_index, FT_Face *aface)
	FT_Attach_File (FT_Face face, const char *filepathname)
	FT_Attach_Stream (FT_Face face, FT_Open_Args *parameters)
	FT_Reference_Face (FT_Face face)
	FT_Done_Face (FT_Face face)
	FT_New_Size (FT_Face face, FT_Size *asize)
	FT_Done_Size (FT_Size size)
	FT_Match_Size (FT_Face face, FT_Size_Request req, FT_Bool ignore_width, FT_ULong *size_index)
	ft_synthesize_vertical_metrics (FT_Glyph_Metrics *metrics, FT_Pos advance)
static void	ft_recompute_scaled_metrics (FT_Face face, FT_Size_Metrics *metrics)
	FT_Select_Metrics (FT_Face face, FT_ULong strike_index)
	FT_Request_Metrics (FT_Face face, FT_Size_Request req)
	FT_Select_Size (FT_Face face, FT_Int strike_index)
	FT_Request_Size (FT_Face face, FT_Size_Request req)
	FT_Set_Char_Size (FT_Face face, FT_F26Dot6 char_width, FT_F26Dot6 char_height, FT_UInt horz_resolution, FT_UInt vert_resolution)
	FT_Set_Pixel_Sizes (FT_Face face, FT_UInt pixel_width, FT_UInt pixel_height)
	FT_Get_Kerning (FT_Face face, FT_UInt left_glyph, FT_UInt right_glyph, FT_UInt kern_mode, FT_Vector *akerning)
	FT_Get_Track_Kerning (FT_Face face, FT_Fixed point_size, FT_Int degree, FT_Fixed *akerning)
	FT_Select_Charmap (FT_Face face, FT_Encoding encoding)
	FT_Set_Charmap (FT_Face face, FT_CharMap charmap)
	FT_Get_Charmap_Index (FT_CharMap charmap)
	FT_CMap_Done (FT_CMap cmap)
	FT_CMap_New (FT_CMap_Class clazz, FT_Pointer init_data, FT_CharMap charmap, FT_CMap *acmap)
	FT_Get_Char_Index (FT_Face face, FT_ULong charcode)
	FT_Get_First_Char (FT_Face face, FT_UInt *agindex)
	FT_Get_Next_Char (FT_Face face, FT_ULong charcode, FT_UInt *agindex)
	FT_Face_Properties (FT_Face face, FT_UInt num_properties, FT_Parameter *properties)
	FT_Face_GetCharVariantIndex (FT_Face face, FT_ULong charcode, FT_ULong variantSelector)
	FT_Face_GetCharVariantIsDefault (FT_Face face, FT_ULong charcode, FT_ULong variantSelector)
	FT_Face_GetVariantSelectors (FT_Face face)
	FT_Face_GetVariantsOfChar (FT_Face face, FT_ULong charcode)
	FT_Face_GetCharsOfVariant (FT_Face face, FT_ULong variantSelector)
	FT_Get_Name_Index (FT_Face face, FT_String *glyph_name)
	FT_Get_Glyph_Name (FT_Face face, FT_UInt glyph_index, FT_Pointer buffer, FT_UInt buffer_max)
	FT_Get_Postscript_Name (FT_Face face)
	FT_Get_Sfnt_Table (FT_Face face, FT_Sfnt_Tag tag)
	FT_Load_Sfnt_Table (FT_Face face, FT_ULong tag, FT_Long offset, FT_Byte *buffer, FT_ULong *length)
	FT_Sfnt_Table_Info (FT_Face face, FT_UInt table_index, FT_ULong *tag, FT_ULong *length)
	FT_Get_CMap_Language_ID (FT_CharMap charmap)
	FT_Get_CMap_Format (FT_CharMap charmap)
	FT_Activate_Size (FT_Size size)
	FT_Lookup_Renderer (FT_Library library, FT_Glyph_Format format, FT_ListNode *node)
static void	ft_set_current_renderer (FT_Library library)
static FT_Error	ft_add_renderer (FT_Module module)
static void	ft_remove_renderer (FT_Module module)
	FT_Get_Renderer (FT_Library library, FT_Glyph_Format format)
	FT_Set_Renderer (FT_Library library, FT_Renderer renderer, FT_UInt num_params, FT_Parameter *parameters)
	FT_Render_Glyph_Internal (FT_Library library, FT_GlyphSlot slot, FT_Render_Mode render_mode)
	FT_Render_Glyph (FT_GlyphSlot slot, FT_Render_Mode render_mode)
static void	Destroy_Module (FT_Module module)
	FT_Add_Module (FT_Library library, const FT_Module_Class *clazz)
	FT_Get_Module (FT_Library library, const char *module_name)
	FT_Get_Module_Interface (FT_Library library, const char *mod_name)
	ft_module_get_service (FT_Module module, const char *service_id, FT_Bool global)
	FT_Remove_Module (FT_Library library, FT_Module module)
static FT_Error	ft_property_do (FT_Library library, const FT_String *module_name, const FT_String *property_name, void *value, FT_Bool set, FT_Bool value_is_string)
	FT_Property_Set (FT_Library library, const FT_String *module_name, const FT_String *property_name, const void *value)
	FT_Property_Get (FT_Library library, const FT_String *module_name, const FT_String *property_name, void *value)
	FT_Reference_Library (FT_Library library)
	FT_New_Library (FT_Memory memory, FT_Library *alibrary)
	FT_Library_Version (FT_Library library, FT_Int *amajor, FT_Int *aminor, FT_Int *apatch)
	FT_Done_Library (FT_Library library)
	FT_Set_Debug_Hook (FT_Library library, FT_UInt hook_index, FT_DebugHook_Func debug_hook)
	FT_Get_TrueType_Engine_Type (FT_Library library)
	FT_Get_SubGlyph_Info (FT_GlyphSlot glyph, FT_UInt sub_index, FT_Int *p_index, FT_UInt *p_flags, FT_Int *p_arg1, FT_Int *p_arg2, FT_Matrix *p_transform)

Macro Definition Documentation

FREETYPE_VER_FIXED

#define FREETYPE_VER_FIXED

Value:

( ( (FT_Long)FREETYPE_MAJOR << 16 ) | \
                                FREETYPE_MINOR                  )

FT_COMPONENT

#define FT_COMPONENT   trace_objs

Definition at line 269 of file ftobjs.c.

GRID_FIT_METRICS

#define GRID_FIT_METRICS

Definition at line 85 of file ftobjs.c.

Function Documentation

destroy_charmaps()

static void destroy_charmaps ( FT_Face  face, FT_Memory  memory  )

static

Definition at line 1079 of file ftobjs.c.

  {
    FT_Int  n;


    if ( !face )
      return;

    for ( n = 0; n < face->num_charmaps; n++ )
    {
      FT_CMap  cmap = FT_CMAP( face->charmaps[n] );


      ft_cmap_done_internal( cmap );

      face->charmaps[n] = NULL;
    }

    FT_FREE( face->charmaps );
    face->num_charmaps = 0;
  }

Referenced by destroy_face(), and open_face().

Destroy_Driver()

static void Destroy_Driver ( FT_Driver  driver )

static

Definition at line 1156 of file ftobjs.c.

  {
    FT_List_Finalize( &driver->faces_list,
                      (FT_List_Destructor)destroy_face,
                      driver->root.memory,
                      driver );
  }

Referenced by Destroy_Module().

destroy_face()

static void destroy_face ( FT_Memory  memory, FT_Face  face, FT_Driver  driver  )

static

Definition at line 1105 of file ftobjs.c.

  {
    FT_Driver_Class  clazz = driver->clazz;


    /* discard auto-hinting data */
    if ( face->autohint.finalizer )
      face->autohint.finalizer( face->autohint.data );

    /* Discard glyph slots for this face.                           */
    /* Beware!  FT_Done_GlyphSlot() changes the field `face->glyph' */
    while ( face->glyph )
      FT_Done_GlyphSlot( face->glyph );

    /* discard all sizes for this face */
    FT_List_Finalize( &face->sizes_list,
                      (FT_List_Destructor)destroy_size,
                      memory,
                      driver );
    face->size = NULL;

    /* now discard client data */
    if ( face->generic.finalizer )
      face->generic.finalizer( face );

    /* discard charmaps */
    destroy_charmaps( face, memory );

    /* finalize format-specific stuff */
    if ( clazz->done_face )
      clazz->done_face( face );

    /* close the stream for this face if needed */
    FT_Stream_Free(
      face->stream,
      ( face->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM ) != 0 );

    face->stream = NULL;

    /* get rid of it */
    if ( face->internal )
    {
      FT_FREE( face->internal );
    }
    FT_FREE( face );
  }

Referenced by Destroy_Driver(), FT_Done_Face(), and ft_open_face_internal().

Destroy_Module()

static void Destroy_Module ( FT_Module  module )

static

Definition at line 4694 of file ftobjs.c.

  {
    FT_Memory         memory  = module->memory;
    FT_Module_Class*  clazz   = module->clazz;
    FT_Library        library = module->library;


    if ( library && library->auto_hinter == module )
      library->auto_hinter = NULL;

    /* if the module is a renderer */
    if ( FT_MODULE_IS_RENDERER( module ) )
      ft_remove_renderer( module );

    /* if the module is a font driver, add some steps */
    if ( FT_MODULE_IS_DRIVER( module ) )
      Destroy_Driver( FT_DRIVER( module ) );

    /* finalize the module object */
    if ( clazz->module_done )
      clazz->module_done( module );

    /* discard it */
    FT_FREE( module );
  }

Referenced by FT_Done_Library(), and FT_Remove_Module().

destroy_size()

static void destroy_size ( FT_Memory  memory, FT_Size  size, FT_Driver  driver  )

static

Definition at line 1057 of file ftobjs.c.

  {
    /* finalize client-specific data */
    if ( size->generic.finalizer )
      size->generic.finalizer( size );

    /* finalize format-specific stuff */
    if ( driver->clazz->done_size )
      driver->clazz->done_size( size );

    FT_FREE( size->internal );
    FT_FREE( size );
  }

Referenced by destroy_face(), and FT_Done_Size().

find_unicode_charmap()

static FT_Error find_unicode_charmap ( FT_Face  face )

static

Definition at line 1180 of file ftobjs.c.

  {
    FT_CharMap*  first;
    FT_CharMap*  cur;


    /* caller should have already checked that `face' is valid */
    FT_ASSERT( face );

    first = face->charmaps;

    if ( !first )
      return FT_THROW( Invalid_CharMap_Handle );

    /*
     *  The original TrueType specification(s) only specified charmap
     *  formats that are capable of mapping 8 or 16 bit character codes to
     *  glyph indices.
     *
     *  However, recent updates to the Apple and OpenType specifications
     *  introduced new formats that are capable of mapping 32-bit character
     *  codes as well.  And these are already used on some fonts, mainly to
     *  map non-BMP Asian ideographs as defined in Unicode.
     *
     *  For compatibility purposes, these fonts generally come with
     *  *several* Unicode charmaps:
     *
     *   - One of them in the "old" 16-bit format, that cannot access
     *     all glyphs in the font.
     *
     *   - Another one in the "new" 32-bit format, that can access all
     *     the glyphs.
     *
     *  This function has been written to always favor a 32-bit charmap
     *  when found.  Otherwise, a 16-bit one is returned when found.
     */

    /* Since the `interesting' table, with IDs (3,10), is normally the */
    /* last one, we loop backwards.  This loses with type1 fonts with  */
    /* non-BMP characters (<.0001%), this wins with .ttf with non-BMP  */
    /* chars (.01% ?), and this is the same about 99.99% of the time!  */

    cur = first + face->num_charmaps;  /* points after the last one */

    for ( ; --cur >= first; )
    {
      if ( cur[0]->encoding == FT_ENCODING_UNICODE )
      {
        /* XXX If some new encodings to represent UCS-4 are added, */
        /*     they should be added here.                          */
        if ( ( cur[0]->platform_id == TT_PLATFORM_MICROSOFT &&
               cur[0]->encoding_id == TT_MS_ID_UCS_4        )     ||
             ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE &&
               cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32    ) )
        {
          face->charmap = cur[0];
          return FT_Err_Ok;
        }
      }
    }

    /* We do not have any UCS-4 charmap.                */
    /* Do the loop again and search for UCS-2 charmaps. */
    cur = first + face->num_charmaps;

    for ( ; --cur >= first; )
    {
      if ( cur[0]->encoding == FT_ENCODING_UNICODE )
      {
        face->charmap = cur[0];
        return FT_Err_Ok;
      }
    }

    return FT_THROW( Invalid_CharMap_Handle );
  }

Referenced by FT_Select_Charmap(), and open_face().

find_variant_selector_charmap()

static FT_CharMap find_variant_selector_charmap ( FT_Face  face )

static

Definition at line 1268 of file ftobjs.c.

  {
    FT_CharMap*  first;
    FT_CharMap*  end;
    FT_CharMap*  cur;


    /* caller should have already checked that `face' is valid */
    FT_ASSERT( face );

    first = face->charmaps;

    if ( !first )
      return NULL;

    end = first + face->num_charmaps;  /* points after the last one */

    for ( cur = first; cur < end; cur++ )
    {
      if ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE    &&
           cur[0]->encoding_id == TT_APPLE_ID_VARIANT_SELECTOR &&
           FT_Get_CMap_Format( cur[0] ) == 14                  )
        return cur[0];
    }

    return NULL;
  }

Referenced by FT_Face_GetCharsOfVariant(), FT_Face_GetCharVariantIndex(), FT_Face_GetCharVariantIsDefault(), FT_Face_GetVariantSelectors(), and FT_Face_GetVariantsOfChar().

FT_Activate_Size()

FT_Activate_Size

(

FT_Size

size

)

Definition at line 4230 of file ftobjs.c.

  {
    FT_Face  face;


    if ( !size )
      return FT_THROW( Invalid_Size_Handle );

    face = size->face;
    if ( !face || !face->driver )
      return FT_THROW( Invalid_Face_Handle );

    /* we don't need anything more complex than that; all size objects */
    /* are already listed by the face                                  */
    face->size = size;

    return FT_Err_Ok;
  }

Referenced by ftc_scaler_lookup_size(), ftc_size_node_compare(), T42_Size_Init(), T42_Size_Request(), and T42_Size_Select().

FT_Add_Module()

FT_Add_Module	(	FT_Library	library,
		const FT_Module_Class *	clazz
	)

Definition at line 4724 of file ftobjs.c.

  {
    FT_Error   error;
    FT_Memory  memory;
    FT_Module  module = NULL;
    FT_UInt    nn;


#define FREETYPE_VER_FIXED  ( ( (FT_Long)FREETYPE_MAJOR << 16 ) | \
                                FREETYPE_MINOR                  )

    if ( !library )
      return FT_THROW( Invalid_Library_Handle );

    if ( !clazz )
      return FT_THROW( Invalid_Argument );

    /* check FreeType version */
    if ( clazz->module_requires > FREETYPE_VER_FIXED )
      return FT_THROW( Invalid_Version );

    /* look for a module with the same name in the library's table */
    for ( nn = 0; nn < library->num_modules; nn++ )
    {
      module = library->modules[nn];
      if ( ft_strcmp( module->clazz->module_name, clazz->module_name ) == 0 )
      {
        /* this installed module has the same name, compare their versions */
        if ( clazz->module_version <= module->clazz->module_version )
          return FT_THROW( Lower_Module_Version );

        /* remove the module from our list, then exit the loop to replace */
        /* it by our new version..                                        */
        FT_Remove_Module( library, module );
        break;
      }
    }

    memory = library->memory;
    error  = FT_Err_Ok;

    if ( library->num_modules >= FT_MAX_MODULES )
    {
      error = FT_THROW( Too_Many_Drivers );
      goto Exit;
    }

    /* allocate module object */
    if ( FT_ALLOC( module, clazz->module_size ) )
      goto Exit;

    /* base initialization */
    module->library = library;
    module->memory  = memory;
    module->clazz   = (FT_Module_Class*)clazz;

    /* check whether the module is a renderer - this must be performed */
    /* before the normal module initialization                         */
    if ( FT_MODULE_IS_RENDERER( module ) )
    {
      /* add to the renderers list */
      error = ft_add_renderer( module );
      if ( error )
        goto Fail;
    }

    /* is the module a auto-hinter? */
    if ( FT_MODULE_IS_HINTER( module ) )
      library->auto_hinter = module;

    /* if the module is a font driver */
    if ( FT_MODULE_IS_DRIVER( module ) )
    {
      FT_Driver  driver = FT_DRIVER( module );


      driver->clazz = (FT_Driver_Class)module->clazz;
    }

    if ( clazz->module_init )
    {
      error = clazz->module_init( module );
      if ( error )
        goto Fail;
    }

    /* add module to the library's table */
    library->modules[library->num_modules++] = module;

  Exit:
    return error;

  Fail:
    if ( FT_MODULE_IS_RENDERER( module ) )
    {
      FT_Renderer  renderer = FT_RENDERER( module );


      if ( renderer->clazz                                          &&
           renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
           renderer->raster                                         )
        renderer->clazz->raster_class->raster_done( renderer->raster );
    }

    FT_FREE( module );
    goto Exit;
  }

Referenced by FT_Add_Default_Modules().

ft_add_renderer()

static FT_Error ft_add_renderer ( FT_Module  module )

static

Definition at line 4332 of file ftobjs.c.

  {
    FT_Library   library = module->library;
    FT_Memory    memory  = library->memory;
    FT_Error     error;
    FT_ListNode  node    = NULL;


    if ( FT_NEW( node ) )
      goto Exit;

    {
      FT_Renderer         render = FT_RENDERER( module );
      FT_Renderer_Class*  clazz  = (FT_Renderer_Class*)module->clazz;


      render->clazz        = clazz;
      render->glyph_format = clazz->glyph_format;

      /* allocate raster object if needed */
      if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
           clazz->raster_class->raster_new                )
      {
        error = clazz->raster_class->raster_new( memory, &render->raster );
        if ( error )
          goto Fail;

        render->raster_render = clazz->raster_class->raster_render;
        render->render        = clazz->render_glyph;
      }

      /* add to list */
      node->data = module;
      FT_List_Add( &library->renderers, node );

      ft_set_current_renderer( library );
    }

  Fail:
    if ( error )
      FT_FREE( node );

  Exit:
    return error;
  }

Referenced by FT_Add_Module().

FT_Attach_File()

FT_Attach_File	(	FT_Face	face,
		const char *	filepathname
	)

Definition at line 2641 of file ftobjs.c.

  {
    FT_Open_Args  open;


    /* test for valid `face' delayed to `FT_Attach_Stream' */

    if ( !filepathname )
      return FT_THROW( Invalid_Argument );

    open.stream   = NULL;
    open.flags    = FT_OPEN_PATHNAME;
    open.pathname = (char*)filepathname;

    return FT_Attach_Stream( face, &open );
  }

FT_Attach_Stream()

FT_Attach_Stream	(	FT_Face	face,
		FT_Open_Args *	parameters
	)

Definition at line 2663 of file ftobjs.c.

  {
    FT_Stream  stream;
    FT_Error   error;
    FT_Driver  driver;

    FT_Driver_Class  clazz;


    /* test for valid `parameters' delayed to `FT_Stream_New' */

    if ( !face )
      return FT_THROW( Invalid_Face_Handle );

    driver = face->driver;
    if ( !driver )
      return FT_THROW( Invalid_Driver_Handle );

    error = FT_Stream_New( driver->root.library, parameters, &stream );
    if ( error )
      goto Exit;

    /* we implement FT_Attach_Stream in each driver through the */
    /* `attach_file' interface                                  */

    error = FT_ERR( Unimplemented_Feature );
    clazz = driver->clazz;
    if ( clazz->attach_file )
      error = clazz->attach_file( face, stream );

    /* close the attached stream */
    FT_Stream_Free( stream,
                    (FT_Bool)( parameters->stream &&
                               ( parameters->flags & FT_OPEN_STREAM ) ) );

  Exit:
    return error;
  }

Referenced by FT_Attach_File().

FT_CMap_Done()

FT_CMap_Done

(

FT_CMap

cmap

)

Definition at line 3568 of file ftobjs.c.

  {
    if ( cmap )
    {
      FT_Face    face   = cmap->charmap.face;
      FT_Memory  memory = FT_FACE_MEMORY( face );
      FT_Error   error;
      FT_Int     i, j;


      for ( i = 0; i < face->num_charmaps; i++ )
      {
        if ( (FT_CMap)face->charmaps[i] == cmap )
        {
          FT_CharMap  last_charmap = face->charmaps[face->num_charmaps - 1];


          if ( FT_RENEW_ARRAY( face->charmaps,
                               face->num_charmaps,
                               face->num_charmaps - 1 ) )
            return;

          /* remove it from our list of charmaps */
          for ( j = i + 1; j < face->num_charmaps; j++ )
          {
            if ( j == face->num_charmaps - 1 )
              face->charmaps[j - 1] = last_charmap;
            else
              face->charmaps[j - 1] = face->charmaps[j];
          }

          face->num_charmaps--;

          if ( (FT_CMap)face->charmap == cmap )
            face->charmap = NULL;

          ft_cmap_done_internal( cmap );

          break;
        }
      }
    }
  }

ft_cmap_done_internal()

static void ft_cmap_done_internal ( FT_CMap  cmap )

static

Definition at line 3553 of file ftobjs.c.

  {
    FT_CMap_Class  clazz  = cmap->clazz;
    FT_Face        face   = cmap->charmap.face;
    FT_Memory      memory = FT_FACE_MEMORY( face );


    if ( clazz->done )
      clazz->done( cmap );

    FT_FREE( cmap );
  }

Referenced by destroy_charmaps(), FT_CMap_Done(), and FT_CMap_New().

FT_CMap_New()

FT_CMap_New	(	FT_CMap_Class	clazz,
		FT_Pointer	init_data,
		FT_CharMap	charmap,
		FT_CMap *	acmap
	)

Definition at line 3614 of file ftobjs.c.

  {
    FT_Error   error = FT_Err_Ok;
    FT_Face    face;
    FT_Memory  memory;
    FT_CMap    cmap = NULL;


    if ( !clazz || !charmap || !charmap->face )
      return FT_THROW( Invalid_Argument );

    face   = charmap->face;
    memory = FT_FACE_MEMORY( face );

    if ( !FT_ALLOC( cmap, clazz->size ) )
    {
      cmap->charmap = *charmap;
      cmap->clazz   = clazz;

      if ( clazz->init )
      {
        error = clazz->init( cmap, init_data );
        if ( error )
          goto Fail;
      }

      /* add it to our list of charmaps */
      if ( FT_RENEW_ARRAY( face->charmaps,
                           face->num_charmaps,
                           face->num_charmaps + 1 ) )
        goto Fail;

      face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap;
    }

  Exit:
    if ( acmap )
      *acmap = cmap;

    return error;

  Fail:
    ft_cmap_done_internal( cmap );
    cmap = NULL;
    goto Exit;
  }

Referenced by BDF_Face_Init(), cff_face_init(), FNT_Face_Init(), PCF_Face_Init(), pfr_face_init(), sfnt_load_face(), T1_Face_Init(), T42_Face_Init(), and tt_face_build_cmaps().

FT_Done_Face()

FT_Done_Face

(

FT_Face

face

)

Definition at line 2721 of file ftobjs.c.

  {
    FT_Error     error;
    FT_Driver    driver;
    FT_Memory    memory;
    FT_ListNode  node;


    error = FT_ERR( Invalid_Face_Handle );
    if ( face && face->driver )
    {
      face->internal->refcount--;
      if ( face->internal->refcount > 0 )
        error = FT_Err_Ok;
      else
      {
        driver = face->driver;
        memory = driver->root.memory;

        /* find face in driver's list */
        node = FT_List_Find( &driver->faces_list, face );
        if ( node )
        {
          /* remove face object from the driver's list */
          FT_List_Remove( &driver->faces_list, node );
          FT_FREE( node );

          /* now destroy the object proper */
          destroy_face( memory, face, driver );
          error = FT_Err_Ok;
        }
      }
    }

    return error;
  }

Referenced by ExecuteTest(), FT_Done_Library(), ft_open_face_internal(), ftc_face_node_done(), FtfdQueryFont(), FtfdUnloadFontFile(), SharedFace_Release(), T42_Face_Done(), and TestFace().

FT_Done_GlyphSlot()

FT_Done_GlyphSlot

(

FT_GlyphSlot

slot

)

Definition at line 612 of file ftobjs.c.

  {
    if ( slot )
    {
      FT_Driver     driver = slot->face->driver;
      FT_Memory     memory = driver->root.memory;
      FT_GlyphSlot  prev;
      FT_GlyphSlot  cur;


      /* Remove slot from its parent face's list */
      prev = NULL;
      cur  = slot->face->glyph;

      while ( cur )
      {
        if ( cur == slot )
        {
          if ( !prev )
            slot->face->glyph = cur->next;
          else
            prev->next = cur->next;

          /* finalize client-specific data */
          if ( slot->generic.finalizer )
            slot->generic.finalizer( slot );

          ft_glyphslot_done( slot );
          FT_FREE( slot );
          break;
        }
        prev = cur;
        cur  = cur->next;
      }
    }
  }

Referenced by destroy_face(), and T42_GlyphSlot_Done().

FT_Done_Library()

FT_Done_Library

(

FT_Library

library

)

Definition at line 5220 of file ftobjs.c.

  {
    FT_Memory  memory;


    if ( !library )
      return FT_THROW( Invalid_Library_Handle );

    library->refcount--;
    if ( library->refcount > 0 )
      goto Exit;

    memory = library->memory;

    /*
     * Close all faces in the library.  If we don't do this, we can have
     * some subtle memory leaks.
     *
     * Example:
     *
     *  - the cff font driver uses the pshinter module in cff_size_done
     *  - if the pshinter module is destroyed before the cff font driver,
     *    opened FT_Face objects managed by the driver are not properly
     *    destroyed, resulting in a memory leak
     *
     * Some faces are dependent on other faces, like Type42 faces that
     * depend on TrueType faces synthesized internally.
     *
     * The order of drivers should be specified in driver_name[].
     */
    {
      FT_UInt      m, n;
      const char*  driver_name[] = { "type42", NULL };


      for ( m = 0;
            m < sizeof ( driver_name ) / sizeof ( driver_name[0] );
            m++ )
      {
        for ( n = 0; n < library->num_modules; n++ )
        {
          FT_Module    module      = library->modules[n];
          const char*  module_name = module->clazz->module_name;
          FT_List      faces;


          if ( driver_name[m]                                &&
               ft_strcmp( module_name, driver_name[m] ) != 0 )
            continue;

          if ( ( module->clazz->module_flags & FT_MODULE_FONT_DRIVER ) == 0 )
            continue;

          FT_TRACE7(( "FT_Done_Library: close faces for %s\n", module_name ));

          faces = &FT_DRIVER( module )->faces_list;
          while ( faces->head )
          {
            FT_Done_Face( FT_FACE( faces->head->data ) );
            if ( faces->head )
              FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" ));
          }
        }
      }
    }

    /* Close all other modules in the library */
#if 1
    /* XXX Modules are removed in the reversed order so that  */
    /* type42 module is removed before truetype module.  This */
    /* avoids double free in some occasions.  It is a hack.   */
    while ( library->num_modules > 0 )
      FT_Remove_Module( library,
                        library->modules[library->num_modules - 1] );
#else
    {
      FT_UInt  n;


      for ( n = 0; n < library->num_modules; n++ )
      {
        FT_Module  module = library->modules[n];


        if ( module )
        {
          Destroy_Module( module );
          library->modules[n] = NULL;
        }
      }
    }
#endif

#ifdef FT_CONFIG_OPTION_PIC
    /* Destroy pic container contents */
    ft_pic_container_destroy( library );
#endif

    FT_FREE( library );

  Exit:
    return FT_Err_Ok;
  }

Referenced by FT_Done_FreeType().

FT_Done_Size()

FT_Done_Size

(

FT_Size

size

)

Definition at line 2827 of file ftobjs.c.

  {
    FT_Error     error;
    FT_Driver    driver;
    FT_Memory    memory;
    FT_Face      face;
    FT_ListNode  node;


    if ( !size )
      return FT_THROW( Invalid_Size_Handle );

    face = size->face;
    if ( !face )
      return FT_THROW( Invalid_Face_Handle );

    driver = face->driver;
    if ( !driver )
      return FT_THROW( Invalid_Driver_Handle );

    memory = driver->root.memory;

    error = FT_Err_Ok;
    node  = FT_List_Find( &face->sizes_list, size );
    if ( node )
    {
      FT_List_Remove( &face->sizes_list, node );
      FT_FREE( node );

      if ( face->size == size )
      {
        face->size = NULL;
        if ( face->sizes_list.head )
          face->size = (FT_Size)(face->sizes_list.head->data);
      }

      destroy_size( memory, size, driver );
    }
    else
      error = FT_THROW( Invalid_Size_Handle );

    return error;
  }

Referenced by ftc_face_node_init(), ftc_scaler_lookup_size(), ftc_size_node_done(), ftc_size_node_reset(), T42_Face_Init(), and T42_Size_Done().

FT_Face_GetCharsOfVariant()

FT_Face_GetCharsOfVariant	(	FT_Face	face,
		FT_ULong	variantSelector
	)

Definition at line 3984 of file ftobjs.c.

  {
    FT_UInt32  *result = NULL;


    if ( face )
    {
      FT_CharMap  charmap = find_variant_selector_charmap( face );


      if ( charmap )
      {
        FT_CMap    vcmap  = FT_CMAP( charmap );
        FT_Memory  memory = FT_FACE_MEMORY( face );


        if ( variantSelector > 0xFFFFFFFFUL )
        {
          FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
          FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
        }

        result = vcmap->clazz->variantchar_list( vcmap, memory,
                                                 (FT_UInt32)variantSelector );
      }
    }

    return result;
  }

FT_Face_GetCharVariantIndex()

FT_Face_GetCharVariantIndex	(	FT_Face	face,
		FT_ULong	charcode,
		FT_ULong	variantSelector
	)

Definition at line 3834 of file ftobjs.c.

  {
    FT_UInt  result = 0;


    if ( face                                           &&
         face->charmap                                  &&
         face->charmap->encoding == FT_ENCODING_UNICODE )
    {
      FT_CharMap  charmap = find_variant_selector_charmap( face );
      FT_CMap     ucmap = FT_CMAP( face->charmap );


      if ( charmap )
      {
        FT_CMap  vcmap = FT_CMAP( charmap );


        if ( charcode > 0xFFFFFFFFUL )
        {
          FT_TRACE1(( "FT_Face_GetCharVariantIndex:"
                      " too large charcode" ));
          FT_TRACE1(( " 0x%x is truncated\n", charcode ));
        }
        if ( variantSelector > 0xFFFFFFFFUL )
        {
          FT_TRACE1(( "FT_Face_GetCharVariantIndex:"
                      " too large variantSelector" ));
          FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
        }

        result = vcmap->clazz->char_var_index( vcmap, ucmap,
                                               (FT_UInt32)charcode,
                                               (FT_UInt32)variantSelector );
      }
    }

    return result;
  }

FT_Face_GetCharVariantIsDefault()

FT_Face_GetCharVariantIsDefault	(	FT_Face	face,
		FT_ULong	charcode,
		FT_ULong	variantSelector
	)

Definition at line 3880 of file ftobjs.c.

  {
    FT_Int  result = -1;


    if ( face )
    {
      FT_CharMap  charmap = find_variant_selector_charmap( face );


      if ( charmap )
      {
        FT_CMap  vcmap = FT_CMAP( charmap );


        if ( charcode > 0xFFFFFFFFUL )
        {
          FT_TRACE1(( "FT_Face_GetCharVariantIsDefault:"
                      " too large charcode" ));
          FT_TRACE1(( " 0x%x is truncated\n", charcode ));
        }
        if ( variantSelector > 0xFFFFFFFFUL )
        {
          FT_TRACE1(( "FT_Face_GetCharVariantIsDefault:"
                      " too large variantSelector" ));
          FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
        }

        result = vcmap->clazz->char_var_default( vcmap,
                                                 (FT_UInt32)charcode,
                                                 (FT_UInt32)variantSelector );
      }
    }

    return result;
  }

FT_Face_GetVariantSelectors()

FT_Face_GetVariantSelectors

(

FT_Face

face

)

Definition at line 3923 of file ftobjs.c.

  {
    FT_UInt32  *result = NULL;


    if ( face )
    {
      FT_CharMap  charmap = find_variant_selector_charmap( face );


      if ( charmap )
      {
        FT_CMap    vcmap  = FT_CMAP( charmap );
        FT_Memory  memory = FT_FACE_MEMORY( face );


        result = vcmap->clazz->variant_list( vcmap, memory );
      }
    }

    return result;
  }

FT_Face_GetVariantsOfChar()

FT_Face_GetVariantsOfChar	(	FT_Face	face,
		FT_ULong	charcode
	)

Definition at line 3950 of file ftobjs.c.

  {
    FT_UInt32  *result = NULL;


    if ( face )
    {
      FT_CharMap  charmap = find_variant_selector_charmap( face );


      if ( charmap )
      {
        FT_CMap    vcmap  = FT_CMAP( charmap );
        FT_Memory  memory = FT_FACE_MEMORY( face );


        if ( charcode > 0xFFFFFFFFUL )
        {
          FT_TRACE1(( "FT_Face_GetVariantsOfChar: too large charcode" ));
          FT_TRACE1(( " 0x%x is truncated\n", charcode ));
        }

        result = vcmap->clazz->charvariant_list( vcmap, memory,
                                                 (FT_UInt32)charcode );
      }
    }
    return result;
  }

FT_Face_Properties()

FT_Face_Properties	(	FT_Face	face,
		FT_UInt	num_properties,
		FT_Parameter *	properties
	)

Definition at line 3755 of file ftobjs.c.

  {
    FT_Error  error = FT_Err_Ok;


    if ( num_properties > 0 && !properties )
    {
      error = FT_THROW( Invalid_Argument );
      goto Exit;
    }

    for ( ; num_properties > 0; num_properties-- )
    {
      if ( properties->tag == FT_PARAM_TAG_STEM_DARKENING )
      {
        if ( properties->data )
        {
          if ( *( (FT_Bool*)properties->data ) == TRUE )
            face->internal->no_stem_darkening = FALSE;
          else
            face->internal->no_stem_darkening = TRUE;
        }
        else
        {
          /* use module default */
          face->internal->no_stem_darkening = -1;
        }
      }
      else if ( properties->tag == FT_PARAM_TAG_LCD_FILTER_WEIGHTS )
      {
#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
        if ( properties->data )
        {
          ft_memcpy( face->internal->lcd_weights,
                     properties->data,
                     FT_LCD_FILTER_FIVE_TAPS );
          face->internal->lcd_filter_func = ft_lcd_filter_fir;
        }
#else
        error = FT_THROW( Unimplemented_Feature );
        goto Exit;
#endif
      }
      else if ( properties->tag == FT_PARAM_TAG_RANDOM_SEED )
      {
        if ( properties->data )
        {
          face->internal->random_seed = *( (FT_Int32*)properties->data );
          if ( face->internal->random_seed < 0 )
            face->internal->random_seed = 0;
        }
        else
        {
          /* use module default */
          face->internal->random_seed = -1;
        }
      }
      else
      {
        error = FT_THROW( Invalid_Argument );
        goto Exit;
      }

      if ( error )
        break;

      properties++;
    }

  Exit:
    return error;
  }

FT_Get_Char_Index()

FT_Get_Char_Index	(	FT_Face	face,
		FT_ULong	charcode
	)

Definition at line 3668 of file ftobjs.c.

  {
    FT_UInt  result = 0;


    if ( face && face->charmap )
    {
      FT_CMap  cmap = FT_CMAP( face->charmap );


      if ( charcode > 0xFFFFFFFFUL )
      {
        FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
        FT_TRACE1(( " 0x%x is truncated\n", charcode ));
      }

      result = cmap->clazz->char_index( cmap, (FT_UInt32)charcode );
      if ( result >= (FT_UInt)face->num_glyphs )
        result = 0;
    }

    return result;
  }

Referenced by af_face_globals_compute_style_coverage(), af_shaper_get_cluster(), FT_Get_First_Char(), FT_Load_Char(), FTC_CMapCache_Lookup(), get_glyph_index(), get_glyph_index_symbol(), and T1_Read_PFM().

FT_Get_Charmap_Index()

FT_Get_Charmap_Index

(

FT_CharMap

charmap

)

Definition at line 3534 of file ftobjs.c.

  {
    FT_Int  i;


    if ( !charmap || !charmap->face )
      return -1;

    for ( i = 0; i < charmap->face->num_charmaps; i++ )
      if ( charmap->face->charmaps[i] == charmap )
        break;

    FT_ASSERT( i < charmap->face->num_charmaps );

    return i;
  }

FT_Get_CMap_Format()

FT_Get_CMap_Format

(

FT_CharMap

charmap

)

Definition at line 4206 of file ftobjs.c.

  {
    FT_Service_TTCMaps  service;
    FT_Face             face;
    TT_CMapInfo         cmap_info;


    if ( !charmap || !charmap->face )
      return -1;

    face = charmap->face;
    FT_FACE_FIND_SERVICE( face, service, TT_CMAP );
    if ( !service )
      return -1;
    if ( service->get_cmap_info( charmap, &cmap_info ))
      return -1;

    return cmap_info.format;
  }

Referenced by find_variant_selector_charmap(), and FT_Set_Charmap().

FT_Get_CMap_Language_ID()

FT_Get_CMap_Language_ID

(

FT_CharMap

charmap

)

Definition at line 4182 of file ftobjs.c.

  {
    FT_Service_TTCMaps  service;
    FT_Face             face;
    TT_CMapInfo         cmap_info;


    if ( !charmap || !charmap->face )
      return 0;

    face = charmap->face;
    FT_FACE_FIND_SERVICE( face, service, TT_CMAP );
    if ( !service )
      return 0;
    if ( service->get_cmap_info( charmap, &cmap_info ))
      return 0;

    return cmap_info.language;
  }

FT_Get_First_Char()

FT_Get_First_Char	(	FT_Face	face,
		FT_UInt *	agindex
	)

Definition at line 3697 of file ftobjs.c.

  {
    FT_ULong  result = 0;
    FT_UInt   gindex = 0;


    /* only do something if we have a charmap, and we have glyphs at all */
    if ( face && face->charmap && face->num_glyphs )
    {
      gindex = FT_Get_Char_Index( face, 0 );
      if ( gindex == 0 )
        result = FT_Get_Next_Char( face, 0, &gindex );
    }

    if ( agindex )
      *agindex = gindex;

    return result;
  }

Referenced by FontFamilyFillInfo(), FtfdQueryFontTree(), ftGdiGetKerningPairs(), ftGdiGetTextCharsetInfo(), and ftGetFontUnicodeRanges().

FT_Get_Glyph_Name()

FT_Get_Glyph_Name	(	FT_Face	face,
		FT_UInt	glyph_index,
		FT_Pointer	buffer,
		FT_UInt	buffer_max
	)

Definition at line 4047 of file ftobjs.c.

  {
    FT_Error              error;
    FT_Service_GlyphDict  service;


    if ( !face )
      return FT_THROW( Invalid_Face_Handle );

    if ( !buffer || buffer_max == 0 )
      return FT_THROW( Invalid_Argument );

    /* clean up buffer */
    ((FT_Byte*)buffer)[0] = '\0';

    if ( (FT_Long)glyph_index >= face->num_glyphs )
      return FT_THROW( Invalid_Glyph_Index );

    if ( !FT_HAS_GLYPH_NAMES( face ) )
      return FT_THROW( Invalid_Argument );

    FT_FACE_LOOKUP_SERVICE( face, service, GLYPH_DICT );
    if ( service && service->get_name )
      error = service->get_name( face, glyph_index, buffer, buffer_max );
    else
      error = FT_THROW( Invalid_Argument );

    return error;
  }

Referenced by tt_check_single_notdef().

FT_Get_Kerning()

FT_Get_Kerning	(	FT_Face	face,
		FT_UInt	left_glyph,
		FT_UInt	right_glyph,
		FT_UInt	kern_mode,
		FT_Vector *	akerning
	)

Definition at line 3347 of file ftobjs.c.

  {
    FT_Error   error = FT_Err_Ok;
    FT_Driver  driver;


    if ( !face )
      return FT_THROW( Invalid_Face_Handle );

    if ( !akerning )
      return FT_THROW( Invalid_Argument );

    driver = face->driver;

    akerning->x = 0;
    akerning->y = 0;

    if ( driver->clazz->get_kerning )
    {
      error = driver->clazz->get_kerning( face,
                                          left_glyph,
                                          right_glyph,
                                          akerning );
      if ( !error )
      {
        if ( kern_mode != FT_KERNING_UNSCALED )
        {
          akerning->x = FT_MulFix( akerning->x, face->size->metrics.x_scale );
          akerning->y = FT_MulFix( akerning->y, face->size->metrics.y_scale );

          if ( kern_mode != FT_KERNING_UNFITTED )
          {
            FT_Pos  orig_x = akerning->x;
            FT_Pos  orig_y = akerning->y;


            /* we scale down kerning values for small ppem values */
            /* to avoid that rounding makes them too big.         */
            /* `25' has been determined heuristically.            */
            if ( face->size->metrics.x_ppem < 25 )
              akerning->x = FT_MulDiv( orig_x,
                                       face->size->metrics.x_ppem, 25 );
            if ( face->size->metrics.y_ppem < 25 )
              akerning->y = FT_MulDiv( orig_y,
                                       face->size->metrics.y_ppem, 25 );

            akerning->x = FT_PIX_ROUND( akerning->x );
            akerning->y = FT_PIX_ROUND( akerning->y );

#ifdef FT_DEBUG_LEVEL_TRACE
            {
              FT_Pos  orig_x_rounded = FT_PIX_ROUND( orig_x );
              FT_Pos  orig_y_rounded = FT_PIX_ROUND( orig_y );


              if ( akerning->x != orig_x_rounded ||
                   akerning->y != orig_y_rounded )
                FT_TRACE5(( "FT_Get_Kerning: horizontal kerning"
                            " (%d, %d) scaled down to (%d, %d) pixels\n",
                            orig_x_rounded / 64, orig_y_rounded / 64,
                            akerning->x / 64, akerning->y / 64 ));
            }
#endif
          }
        }
      }
    }

    return error;
  }

Referenced by FT_Get_PFR_Kerning(), ftGdiGetKerningPairs(), IntExtTextOutW(), and TextIntGetTextExtentPoint().

FT_Get_Module()

FT_Get_Module	(	FT_Library	library,
		const char *	module_name
	)

Definition at line 4837 of file ftobjs.c.

  {
    FT_Module   result = NULL;
    FT_Module*  cur;
    FT_Module*  limit;


    if ( !library || !module_name )
      return result;

    cur   = library->modules;
    limit = cur + library->num_modules;

    for ( ; cur < limit; cur++ )
      if ( ft_strcmp( cur[0]->clazz->module_name, module_name ) == 0 )
      {
        result = cur[0];
        break;
      }

    return result;
  }

Referenced by cff_get_glyph_name(), cff_get_interface(), cff_get_name_index(), cff_size_get_globals_funcs(), cff_slot_init(), cid_size_get_globals_funcs(), cid_slot_init(), FT_DEFINE_SERVICE_PSINFOREC(), FT_Get_Module_Interface(), FT_Get_TrueType_Engine_Type(), if(), sfnt_init_face(), T1_GlyphSlot_Init(), T1_Size_Get_Globals_Funcs(), T42_Driver_Init(), T42_Face_Init(), and tt_get_interface().

FT_Get_Module_Interface()

FT_Get_Module_Interface	(	FT_Library	library,
		const char *	mod_name
	)

Definition at line 4865 of file ftobjs.c.

  {
    FT_Module  module;


    /* test for valid `library' delayed to FT_Get_Module() */

    module = FT_Get_Module( library, mod_name );

    return module ? module->clazz->module_interface : 0;
  }

Referenced by cff_face_init(), cff_parser_run(), cid_face_init(), parse_afm(), sfnt_init_face(), T1_Face_Init(), T42_Face_Init(), and tt_face_init().

FT_Get_Name_Index()

FT_Get_Name_Index	(	FT_Face	face,
		FT_String *	glyph_name
	)

Definition at line 4019 of file ftobjs.c.

  {
    FT_UInt  result = 0;


    if ( face                       &&
         FT_HAS_GLYPH_NAMES( face ) &&
         glyph_name                 )
    {
      FT_Service_GlyphDict  service;


      FT_FACE_LOOKUP_SERVICE( face,
                              service,
                              GLYPH_DICT );

      if ( service && service->name_index )
        result = service->name_index( face, glyph_name );
    }

    return result;
  }

FT_Get_Next_Char()

FT_Get_Next_Char	(	FT_Face	face,
		FT_ULong	charcode,
		FT_UInt *	agindex
	)

Definition at line 3722 of file ftobjs.c.

  {
    FT_ULong  result = 0;
    FT_UInt   gindex = 0;


    if ( face && face->charmap && face->num_glyphs )
    {
      FT_UInt32  code = (FT_UInt32)charcode;
      FT_CMap    cmap = FT_CMAP( face->charmap );


      do
      {
        gindex = cmap->clazz->char_next( cmap, &code );

      } while ( gindex >= (FT_UInt)face->num_glyphs );

      result = ( gindex == 0 ) ? 0 : code;
    }

    if ( agindex )
      *agindex = gindex;

    return result;
  }

Referenced by af_face_globals_compute_style_coverage(), FT_Get_First_Char(), FtfdQueryFontTree(), ftGdiGetKerningPairs(), and ftGetFontUnicodeRanges().

FT_Get_Postscript_Name()

FT_Get_Postscript_Name

(

FT_Face

face

)

Definition at line 4084 of file ftobjs.c.

  {
    const char*  result = NULL;


    if ( !face )
      goto Exit;

    if ( !result )
    {
      FT_Service_PsFontName  service;


      FT_FACE_LOOKUP_SERVICE( face,
                              service,
                              POSTSCRIPT_FONT_NAME );

      if ( service && service->get_ps_font_name )
        result = service->get_ps_font_name( face );
    }

  Exit:
    return result;
  }

FT_Get_Renderer()

FT_Get_Renderer	(	FT_Library	library,
		FT_Glyph_Format	format
	)

Definition at line 4416 of file ftobjs.c.

  {
    /* test for valid `library' delayed to `FT_Lookup_Renderer' */

    return FT_Lookup_Renderer( library, format, 0 );
  }

FT_Get_Sfnt_Table()

FT_Get_Sfnt_Table	(	FT_Face	face,
		FT_Sfnt_Tag	tag
	)

Definition at line 4113 of file ftobjs.c.

  {
    void*                  table = NULL;
    FT_Service_SFNT_Table  service;


    if ( face && FT_IS_SFNT( face ) )
    {
      FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
      if ( service )
        table = service->get_table( face, tag );
    }

    return table;
  }

Referenced by FontFamilyFillInfo(), FT_Get_FSType_Flags(), ftGdiGetTextCharsetInfo(), ftGdiGetTextMetricsW(), IntFontType(), IntGdiLoadFontsFromMemory(), IntGetOutlineTextMetrics(), IntRequestFontSize(), IntWidthMatrix(), and NtGdiGetGlyphIndicesW().

FT_Get_SubGlyph_Info()

FT_Get_SubGlyph_Info	(	FT_GlyphSlot	glyph,
		FT_UInt	sub_index,
		FT_Int *	p_index,
		FT_UInt *	p_flags,
		FT_Int *	p_arg1,
		FT_Int *	p_arg2,
		FT_Matrix *	p_transform
	)

Definition at line 5373 of file ftobjs.c.

  {
    FT_Error  error = FT_ERR( Invalid_Argument );


    if ( glyph                                      &&
         glyph->subglyphs                           &&
         glyph->format == FT_GLYPH_FORMAT_COMPOSITE &&
         sub_index < glyph->num_subglyphs           )
    {
      FT_SubGlyph  subg = glyph->subglyphs + sub_index;


      *p_index     = subg->index;
      *p_flags     = subg->flags;
      *p_arg1      = subg->arg1;
      *p_arg2      = subg->arg2;
      *p_transform = subg->transform;

      error = FT_Err_Ok;
    }

    return error;
  }

FT_Get_Track_Kerning()

FT_Get_Track_Kerning	(	FT_Face	face,
		FT_Fixed	point_size,
		FT_Int	degree,
		FT_Fixed *	akerning
	)

Definition at line 3426 of file ftobjs.c.

  {
    FT_Service_Kerning  service;
    FT_Error            error = FT_Err_Ok;


    if ( !face )
      return FT_THROW( Invalid_Face_Handle );

    if ( !akerning )
      return FT_THROW( Invalid_Argument );

    FT_FACE_FIND_SERVICE( face, service, KERNING );
    if ( !service )
      return FT_THROW( Unimplemented_Feature );

    error = service->get_track( face,
                                point_size,
                                degree,
                                akerning );

    return error;
  }

FT_Get_TrueType_Engine_Type()

FT_Get_TrueType_Engine_Type

(

FT_Library

library

)

Definition at line 5342 of file ftobjs.c.

  {
    FT_TrueTypeEngineType  result = FT_TRUETYPE_ENGINE_TYPE_NONE;


    if ( library )
    {
      FT_Module  module = FT_Get_Module( library, "truetype" );


      if ( module )
      {
        FT_Service_TrueTypeEngine  service;


        service = (FT_Service_TrueTypeEngine)
                    ft_module_get_service( module,
                                           FT_SERVICE_ID_TRUETYPE_ENGINE,
                                           0 );
        if ( service )
          result = service->engine_type;
      }
    }

    return result;
  }

ft_glyphslot_alloc_bitmap()

ft_glyphslot_alloc_bitmap	(	FT_GlyphSlot	slot,
		FT_ULong	size
	)

Definition at line 478 of file ftobjs.c.

  {
    FT_Memory  memory = FT_FACE_MEMORY( slot->face );
    FT_Error   error;


    if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
      FT_FREE( slot->bitmap.buffer );
    else
      slot->internal->flags |= FT_GLYPH_OWN_BITMAP;

    (void)FT_ALLOC( slot->bitmap.buffer, size );
    return error;
  }

Referenced by PCF_Glyph_Load().

ft_glyphslot_clear()

static void ft_glyphslot_clear ( FT_GlyphSlot  slot )

static

Definition at line 496 of file ftobjs.c.

  {
    /* free bitmap if needed */
    ft_glyphslot_free_bitmap( slot );

    /* clear all public fields in the glyph slot */
    FT_ZERO( &slot->metrics );
    FT_ZERO( &slot->outline );

    slot->bitmap.width      = 0;
    slot->bitmap.rows       = 0;
    slot->bitmap.pitch      = 0;
    slot->bitmap.pixel_mode = 0;
    /* `slot->bitmap.buffer' has been handled by ft_glyphslot_free_bitmap */

    slot->bitmap_left   = 0;
    slot->bitmap_top    = 0;
    slot->num_subglyphs = 0;
    slot->subglyphs     = NULL;
    slot->control_data  = NULL;
    slot->control_len   = 0;
    slot->other         = NULL;
    slot->format        = FT_GLYPH_FORMAT_NONE;

    slot->linearHoriAdvance = 0;
    slot->linearVertAdvance = 0;
    slot->lsb_delta         = 0;
    slot->rsb_delta         = 0;
  }

Referenced by FT_Load_Glyph().

ft_glyphslot_done()

static void ft_glyphslot_done ( FT_GlyphSlot  slot )

static

Definition at line 528 of file ftobjs.c.

  {
    FT_Driver        driver = slot->face->driver;
    FT_Driver_Class  clazz  = driver->clazz;
    FT_Memory        memory = driver->root.memory;


    if ( clazz->done_slot )
      clazz->done_slot( slot );

    /* free bitmap buffer if needed */
    ft_glyphslot_free_bitmap( slot );

    /* slot->internal might be NULL in out-of-memory situations */
    if ( slot->internal )
    {
      /* free glyph loader */
      if ( FT_DRIVER_USES_OUTLINES( driver ) )
      {
        FT_GlyphLoader_Done( slot->internal->loader );
        slot->internal->loader = NULL;
      }

      FT_FREE( slot->internal );
    }
  }

Referenced by FT_Done_GlyphSlot(), and FT_New_GlyphSlot().

ft_glyphslot_free_bitmap()

ft_glyphslot_free_bitmap

(

FT_GlyphSlot

slot

)

Definition at line 314 of file ftobjs.c.

  {
    if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) )
    {
      FT_Memory  memory = FT_FACE_MEMORY( slot->face );


      FT_FREE( slot->bitmap.buffer );
      slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
    }
    else
    {
      /* assume that the bitmap buffer was stolen or not */
      /* allocated from the heap                         */
      slot->bitmap.buffer = NULL;
    }
  }

Referenced by ft_glyphslot_clear(), ft_glyphslot_done(), ft_glyphslot_set_bitmap(), and t42_glyphslot_clear().

ft_glyphslot_grid_fit_metrics()

static void ft_glyphslot_grid_fit_metrics ( FT_GlyphSlot  slot, FT_Bool  vertical  )

static

Definition at line 707 of file ftobjs.c.

  {
    FT_Glyph_Metrics*  metrics = &slot->metrics;
    FT_Pos             right, bottom;


    if ( vertical )
    {
      metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX );
      metrics->horiBearingY = FT_PIX_CEIL_LONG( metrics->horiBearingY );

      right  = FT_PIX_CEIL_LONG( ADD_LONG( metrics->vertBearingX,
                                           metrics->width ) );
      bottom = FT_PIX_CEIL_LONG( ADD_LONG( metrics->vertBearingY,
                                           metrics->height ) );

      metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX );
      metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY );

      metrics->width  = SUB_LONG( right,
                                  metrics->vertBearingX );
      metrics->height = SUB_LONG( bottom,
                                  metrics->vertBearingY );
    }
    else
    {
      metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX );
      metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY );

      right  = FT_PIX_CEIL_LONG( ADD_LONG( metrics->horiBearingX,
                                           metrics->width ) );
      bottom = FT_PIX_FLOOR( SUB_LONG( metrics->horiBearingY,
                                       metrics->height ) );

      metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX );
      metrics->horiBearingY = FT_PIX_CEIL_LONG( metrics->horiBearingY );

      metrics->width  = SUB_LONG( right,
                                  metrics->horiBearingX );
      metrics->height = SUB_LONG( metrics->horiBearingY,
                                  bottom );
    }

    metrics->horiAdvance = FT_PIX_ROUND_LONG( metrics->horiAdvance );
    metrics->vertAdvance = FT_PIX_ROUND_LONG( metrics->vertAdvance );
  }

Referenced by FT_Load_Glyph().

ft_glyphslot_init()

static FT_Error ft_glyphslot_init ( FT_GlyphSlot  slot )

static

Definition at line 286 of file ftobjs.c.

  {
    FT_Driver         driver   = slot->face->driver;
    FT_Driver_Class   clazz    = driver->clazz;
    FT_Memory         memory   = driver->root.memory;
    FT_Error          error    = FT_Err_Ok;
    FT_Slot_Internal  internal = NULL;


    slot->library = driver->root.library;

    if ( FT_NEW( internal ) )
      goto Exit;

    slot->internal = internal;

    if ( FT_DRIVER_USES_OUTLINES( driver ) )
      error = FT_GlyphLoader_New( memory, &internal->loader );

    if ( !error && clazz->init_slot )
      error = clazz->init_slot( slot );

  Exit:
    return error;
  }

Referenced by FT_New_GlyphSlot().

ft_glyphslot_preset_bitmap()

ft_glyphslot_preset_bitmap	(	FT_GlyphSlot	slot,
		FT_Render_Mode	mode,
		const FT_Vector *	origin
	)

Definition at line 334 of file ftobjs.c.

  {
    FT_Outline*  outline = &slot->outline;
    FT_Bitmap*   bitmap  = &slot->bitmap;

    FT_Pixel_Mode  pixel_mode;

    FT_BBox  cbox;
    FT_Pos   x_shift = 0;
    FT_Pos   y_shift = 0;
    FT_Pos   x_left, y_top;
    FT_Pos   width, height, pitch;


    if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) )
      return;

    if ( origin )
    {
      x_shift = origin->x;
      y_shift = origin->y;
    }

    /* compute the control box, and grid-fit it, */
    /* taking into account the origin shift      */
    FT_Outline_Get_CBox( outline, &cbox );

    cbox.xMin += x_shift;
    cbox.yMin += y_shift;
    cbox.xMax += x_shift;
    cbox.yMax += y_shift;

    switch ( mode )
    {
    case FT_RENDER_MODE_MONO:
      pixel_mode = FT_PIXEL_MODE_MONO;
#if 1
      /* undocumented but confirmed: bbox values get rounded    */
      /* unless the rounded box can collapse for a narrow glyph */
      if ( cbox.xMax - cbox.xMin < 64 )
      {
        cbox.xMin = FT_PIX_FLOOR( cbox.xMin );
        cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax );
      }
      else
      {
        cbox.xMin = FT_PIX_ROUND_LONG( cbox.xMin );
        cbox.xMax = FT_PIX_ROUND_LONG( cbox.xMax );
      }

      if ( cbox.yMax - cbox.yMin < 64 )
      {
        cbox.yMin = FT_PIX_FLOOR( cbox.yMin );
        cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax );
      }
      else
      {
        cbox.yMin = FT_PIX_ROUND_LONG( cbox.yMin );
        cbox.yMax = FT_PIX_ROUND_LONG( cbox.yMax );
      }
#else
      cbox.xMin = FT_PIX_FLOOR( cbox.xMin );
      cbox.yMin = FT_PIX_FLOOR( cbox.yMin );
      cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax );
      cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax );
#endif
      break;

    case FT_RENDER_MODE_LCD:
      pixel_mode = FT_PIXEL_MODE_LCD;
      ft_lcd_padding( &cbox.xMin, &cbox.xMax, slot );
      goto Round;

    case FT_RENDER_MODE_LCD_V:
      pixel_mode = FT_PIXEL_MODE_LCD_V;
      ft_lcd_padding( &cbox.yMin, &cbox.yMax, slot );
      goto Round;

    case FT_RENDER_MODE_NORMAL:
    case FT_RENDER_MODE_LIGHT:
    default:
      pixel_mode = FT_PIXEL_MODE_GRAY;
    Round:
      cbox.xMin = FT_PIX_FLOOR( cbox.xMin );
      cbox.yMin = FT_PIX_FLOOR( cbox.yMin );
      cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax );
      cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax );
    }

    x_shift = SUB_LONG( x_shift, cbox.xMin );
    y_shift = SUB_LONG( y_shift, cbox.yMin );

    x_left = cbox.xMin >> 6;
    y_top  = cbox.yMax >> 6;

    width  = ( (FT_ULong)cbox.xMax - (FT_ULong)cbox.xMin ) >> 6;
    height = ( (FT_ULong)cbox.yMax - (FT_ULong)cbox.yMin ) >> 6;

    switch ( pixel_mode )
    {
    case FT_PIXEL_MODE_MONO:
      pitch = ( ( width + 15 ) >> 4 ) << 1;
      break;

    case FT_PIXEL_MODE_LCD:
      width *= 3;
      pitch  = FT_PAD_CEIL( width, 4 );
      break;

    case FT_PIXEL_MODE_LCD_V:
      height *= 3;
      /* fall through */

    case FT_PIXEL_MODE_GRAY:
    default:
      pitch = width;
    }

    slot->bitmap_left = (FT_Int)x_left;
    slot->bitmap_top  = (FT_Int)y_top;

    bitmap->pixel_mode = (unsigned char)pixel_mode;
    bitmap->num_grays  = 256;
    bitmap->width      = (unsigned int)width;
    bitmap->rows       = (unsigned int)height;
    bitmap->pitch      = pitch;
  }

Referenced by FT_Load_Glyph(), ft_raster1_render(), and ft_smooth_render_generic().

ft_glyphslot_set_bitmap()

ft_glyphslot_set_bitmap	(	FT_GlyphSlot	slot,
		FT_Byte *	buffer
	)

Definition at line 466 of file ftobjs.c.

  {
    ft_glyphslot_free_bitmap( slot );

    slot->bitmap.buffer = buffer;

    FT_ASSERT( (slot->internal->flags & FT_GLYPH_OWN_BITMAP) == 0 );
  }

Referenced by BDF_Glyph_Load().

FT_Library_Version()

FT_Library_Version	(	FT_Library	library,
		FT_Int *	amajor,
		FT_Int *	aminor,
		FT_Int *	apatch
	)

Definition at line 5189 of file ftobjs.c.

  {
    FT_Int  major = 0;
    FT_Int  minor = 0;
    FT_Int  patch = 0;


    if ( library )
    {
      major = library->version_major;
      minor = library->version_minor;
      patch = library->version_patch;
    }

    if ( amajor )
      *amajor = major;

    if ( aminor )
      *aminor = minor;

    if ( apatch )
      *apatch = patch;
  }

FT_Load_Char()

FT_Load_Char	(	FT_Face	face,
		FT_ULong	char_code,
		FT_Int32	load_flags
	)

Definition at line 1037 of file ftobjs.c.

  {
    FT_UInt  glyph_index;


    if ( !face )
      return FT_THROW( Invalid_Face_Handle );

    glyph_index = (FT_UInt)char_code;
    if ( face->charmap )
      glyph_index = FT_Get_Char_Index( face, char_code );

    return FT_Load_Glyph( face, glyph_index, load_flags );
  }

FT_Load_Glyph()

FT_Load_Glyph	(	FT_Face	face,
		FT_UInt	glyph_index,
		FT_Int32	load_flags
	)

Definition at line 760 of file ftobjs.c.

  {
    FT_Error      error;
    FT_Driver     driver;
    FT_GlyphSlot  slot;
    FT_Library    library;
    FT_Bool       autohint = FALSE;
    FT_Module     hinter;
    TT_Face       ttface = (TT_Face)face;


    if ( !face || !face->size || !face->glyph )
      return FT_THROW( Invalid_Face_Handle );

    /* The validity test for `glyph_index' is performed by the */
    /* font drivers.                                           */

    slot = face->glyph;
    ft_glyphslot_clear( slot );

    driver  = face->driver;
    library = driver->root.library;
    hinter  = library->auto_hinter;

    /* resolve load flags dependencies */

    if ( load_flags & FT_LOAD_NO_RECURSE )
      load_flags |= FT_LOAD_NO_SCALE         |
                    FT_LOAD_IGNORE_TRANSFORM;

    if ( load_flags & FT_LOAD_NO_SCALE )
    {
      load_flags |= FT_LOAD_NO_HINTING |
                    FT_LOAD_NO_BITMAP;

      load_flags &= ~FT_LOAD_RENDER;
    }

    if ( load_flags & FT_LOAD_BITMAP_METRICS_ONLY )
      load_flags &= ~FT_LOAD_RENDER;

    /*
     * Determine whether we need to auto-hint or not.
     * The general rules are:
     *
     * - Do only auto-hinting if we have
     *
     *   - a hinter module,
     *   - a scalable font format dealing with outlines,
     *   - not a tricky font, and
     *   - no transforms except simple slants and/or rotations by
     *     integer multiples of 90 degrees.
     *
     * - Then, auto-hint if FT_LOAD_FORCE_AUTOHINT is set or if we don't
     *   have a native font hinter.
     *
     * - Otherwise, auto-hint for LIGHT hinting mode or if there isn't
     *   any hinting bytecode in the TrueType/OpenType font.
     *
     * - Exception: The font is `tricky' and requires the native hinter to
     *   load properly.
     */

    if ( hinter                                           &&
         !( load_flags & FT_LOAD_NO_HINTING )             &&
         !( load_flags & FT_LOAD_NO_AUTOHINT )            &&
         FT_DRIVER_IS_SCALABLE( driver )                  &&
         FT_DRIVER_USES_OUTLINES( driver )                &&
         !FT_IS_TRICKY( face )                            &&
         ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM )    ||
           ( face->internal->transform_matrix.yx == 0 &&
             face->internal->transform_matrix.xx != 0 ) ||
           ( face->internal->transform_matrix.xx == 0 &&
             face->internal->transform_matrix.yx != 0 ) ) )
    {
      if ( ( load_flags & FT_LOAD_FORCE_AUTOHINT ) ||
           !FT_DRIVER_HAS_HINTER( driver )         )
        autohint = TRUE;
      else
      {
        FT_Render_Mode  mode = FT_LOAD_TARGET_MODE( load_flags );
        FT_Bool         is_light_type1;


        /* only the new Adobe engine (for both CFF and Type 1) is `light'; */
        /* we use `strstr' to catch both `Type 1' and `CID Type 1'         */
        is_light_type1 =
          ft_strstr( FT_Get_Font_Format( face ), "Type 1" ) != NULL   &&
          ((PS_Driver)driver)->hinting_engine == FT_HINTING_ADOBE;

        /* the check for `num_locations' assures that we actually    */
        /* test for instructions in a TTF and not in a CFF-based OTF */
        /*                                                           */
        /* since `maxSizeOfInstructions' might be unreliable, we     */
        /* check the size of the `fpgm' and `prep' tables, too --    */
        /* the assumption is that there don't exist real TTFs where  */
        /* both `fpgm' and `prep' tables are missing                 */
        if ( ( mode == FT_RENDER_MODE_LIGHT           &&
               ( !FT_DRIVER_HINTS_LIGHTLY( driver ) &&
                 !is_light_type1                    ) )         ||
             ( FT_IS_SFNT( face )                             &&
               ttface->num_locations                          &&
               ttface->max_profile.maxSizeOfInstructions == 0 &&
               ttface->font_program_size == 0                 &&
               ttface->cvt_program_size == 0                  ) )
          autohint = TRUE;
      }
    }

    if ( autohint )
    {
      FT_AutoHinter_Interface  hinting;


      /* try to load embedded bitmaps first if available            */
      /*                                                            */
      /* XXX: This is really a temporary hack that should disappear */
      /*      promptly with FreeType 2.1!                           */
      /*                                                            */
      if ( FT_HAS_FIXED_SIZES( face )              &&
           ( load_flags & FT_LOAD_NO_BITMAP ) == 0 )
      {
        error = driver->clazz->load_glyph( slot, face->size,
                                           glyph_index,
                                           load_flags | FT_LOAD_SBITS_ONLY );

        if ( !error && slot->format == FT_GLYPH_FORMAT_BITMAP )
          goto Load_Ok;
      }

      {
        FT_Face_Internal  internal        = face->internal;
        FT_Int            transform_flags = internal->transform_flags;


        /* since the auto-hinter calls FT_Load_Glyph by itself, */
        /* make sure that glyphs aren't transformed             */
        internal->transform_flags = 0;

        /* load auto-hinted outline */
        hinting = (FT_AutoHinter_Interface)hinter->clazz->module_interface;

        error   = hinting->load_glyph( (FT_AutoHinter)hinter,
                                       slot, face->size,
                                       glyph_index, load_flags );

        internal->transform_flags = transform_flags;
      }
    }
    else
    {
      error = driver->clazz->load_glyph( slot,
                                         face->size,
                                         glyph_index,
                                         load_flags );
      if ( error )
        goto Exit;

      if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
      {
        /* check that the loaded outline is correct */
        error = FT_Outline_Check( &slot->outline );
        if ( error )
          goto Exit;

#ifdef GRID_FIT_METRICS
        if ( !( load_flags & FT_LOAD_NO_HINTING ) )
          ft_glyphslot_grid_fit_metrics( slot,
              FT_BOOL( load_flags & FT_LOAD_VERTICAL_LAYOUT ) );
#endif
      }
    }

  Load_Ok:
    /* compute the advance */
    if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
    {
      slot->advance.x = 0;
      slot->advance.y = slot->metrics.vertAdvance;
    }
    else
    {
      slot->advance.x = slot->metrics.horiAdvance;
      slot->advance.y = 0;
    }

    /* compute the linear advance in 16.16 pixels */
    if ( ( load_flags & FT_LOAD_LINEAR_DESIGN ) == 0 &&
         FT_IS_SCALABLE( face )                      )
    {
      FT_Size_Metrics*  metrics = &face->size->metrics;


      /* it's tricky! */
      slot->linearHoriAdvance = FT_MulDiv( slot->linearHoriAdvance,
                                           metrics->x_scale, 64 );

      slot->linearVertAdvance = FT_MulDiv( slot->linearVertAdvance,
                                           metrics->y_scale, 64 );
    }

    if ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM ) == 0 )
    {
      FT_Face_Internal  internal = face->internal;


      /* now, transform the glyph image if needed */
      if ( internal->transform_flags )
      {
        /* get renderer */
        FT_Renderer  renderer = ft_lookup_glyph_renderer( slot );


        if ( renderer )
          error = renderer->clazz->transform_glyph(
                                     renderer, slot,
                                     &internal->transform_matrix,
                                     &internal->transform_delta );
        else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
        {
          /* apply `standard' transformation if no renderer is available */
          if ( internal->transform_flags & 1 )
            FT_Outline_Transform( &slot->outline,
                                  &internal->transform_matrix );

          if ( internal->transform_flags & 2 )
            FT_Outline_Translate( &slot->outline,
                                  internal->transform_delta.x,
                                  internal->transform_delta.y );
        }

        /* transform advance */
        FT_Vector_Transform( &slot->advance, &internal->transform_matrix );
      }
    }

    /* do we need to render the image or preset the bitmap now? */
    if ( !error                                    &&
         ( load_flags & FT_LOAD_NO_SCALE ) == 0    &&
         slot->format != FT_GLYPH_FORMAT_BITMAP    &&
         slot->format != FT_GLYPH_FORMAT_COMPOSITE )
    {
      FT_Render_Mode  mode = FT_LOAD_TARGET_MODE( load_flags );


      if ( mode == FT_RENDER_MODE_NORMAL   &&
           load_flags & FT_LOAD_MONOCHROME )
        mode = FT_RENDER_MODE_MONO;

      if ( load_flags & FT_LOAD_RENDER )
        error = FT_Render_Glyph( slot, mode );
      else
        ft_glyphslot_preset_bitmap( slot, mode, NULL );
    }

    FT_TRACE5(( "FT_Load_Glyph: index %d, flags %x\n",
                glyph_index, load_flags               ));
    FT_TRACE5(( "  x advance: %f\n", slot->advance.x / 64.0 ));
    FT_TRACE5(( "  y advance: %f\n", slot->advance.y / 64.0 ));
    FT_TRACE5(( "  linear x advance: %f\n",
                slot->linearHoriAdvance / 65536.0 ));
    FT_TRACE5(( "  linear y advance: %f\n",
                slot->linearVertAdvance / 65536.0 ));
    FT_TRACE5(( "  bitmap %dx%d, mode %d\n",
                slot->bitmap.width, slot->bitmap.rows,
                slot->bitmap.pixel_mode               ));

  Exit:
    return error;
  }

Referenced by af_latin_metrics_init_blues(), af_latin_metrics_init_widths(), af_loader_load_glyph(), FT_Get_Advances(), FT_Load_Char(), ftc_basic_family_load_bitmap(), ftc_basic_family_load_glyph(), ftGdiGetGlyphOutline(), gxv_ctlPoint_validate(), gxv_prop_zero_advance_validate(), IntExtTextOutW(), NtGdiGetCharABCWidthsW(), NtGdiGetCharWidthW(), TestFace(), and TextIntGetTextExtentPoint().

FT_Load_Sfnt_Table()

FT_Load_Sfnt_Table	(	FT_Face	face,
		FT_ULong	tag,
		FT_Long	offset,
		FT_Byte *	buffer,
		FT_ULong *	length
	)

Definition at line 4134 of file ftobjs.c.

  {
    FT_Service_SFNT_Table  service;


    if ( !face || !FT_IS_SFNT( face ) )
      return FT_THROW( Invalid_Face_Handle );

    FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
    if ( !service )
      return FT_THROW( Unimplemented_Feature );

    return service->load_table( face, tag, offset, buffer, length );
  }

Referenced by ftGdiGetFontData(), gxv_load_table(), IntFontType(), and otv_load_table().

ft_lookup_glyph_renderer()

static FT_Renderer ft_lookup_glyph_renderer ( FT_GlyphSlot  slot )

static

Definition at line 4306 of file ftobjs.c.

  {
    FT_Face      face    = slot->face;
    FT_Library   library = FT_FACE_LIBRARY( face );
    FT_Renderer  result  = library->cur_renderer;


    if ( !result || result->glyph_format != slot->format )
      result = FT_Lookup_Renderer( library, slot->format, 0 );

    return result;
  }

Referenced by FT_Load_Glyph().

FT_Lookup_Renderer()

FT_Lookup_Renderer	(	FT_Library	library,
		FT_Glyph_Format	format,
		FT_ListNode *	node
	)

Definition at line 4264 of file ftobjs.c.

  {
    FT_ListNode  cur;
    FT_Renderer  result = NULL;


    if ( !library )
      goto Exit;

    cur = library->renderers.head;

    if ( node )
    {
      if ( *node )
        cur = (*node)->next;
      *node = NULL;
    }

    while ( cur )
    {
      FT_Renderer  renderer = FT_RENDERER( cur->data );


      if ( renderer->glyph_format == format )
      {
        if ( node )
          *node = cur;

        result = renderer;
        break;
      }
      cur = cur->next;
    }

  Exit:
    return result;
  }

Referenced by FT_Get_Glyph(), FT_Get_Renderer(), ft_lookup_glyph_renderer(), FT_Outline_Render(), FT_Render_Glyph_Internal(), and ft_set_current_renderer().

FT_Match_Size()

FT_Match_Size	(	FT_Face	face,
		FT_Size_Request	req,
		FT_Bool	ignore_width,
		FT_ULong *	size_index
	)

Definition at line 2875 of file ftobjs.c.

  {
    FT_Int   i;
    FT_Long  w, h;


    if ( !FT_HAS_FIXED_SIZES( face ) )
      return FT_THROW( Invalid_Face_Handle );

    /* FT_Bitmap_Size doesn't provide enough info... */
    if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL )
      return FT_THROW( Unimplemented_Feature );

    w = FT_REQUEST_WIDTH ( req );
    h = FT_REQUEST_HEIGHT( req );

    if ( req->width && !req->height )
      h = w;
    else if ( !req->width && req->height )
      w = h;

    w = FT_PIX_ROUND( w );
    h = FT_PIX_ROUND( h );

    if ( !w || !h )
      return FT_THROW( Invalid_Pixel_Size );

    for ( i = 0; i < face->num_fixed_sizes; i++ )
    {
      FT_Bitmap_Size*  bsize = face->available_sizes + i;


      if ( h != FT_PIX_ROUND( bsize->y_ppem ) )
        continue;

      if ( w == FT_PIX_ROUND( bsize->x_ppem ) || ignore_width )
      {
        FT_TRACE3(( "FT_Match_Size: bitmap strike %d matches\n", i ));

        if ( size_index )
          *size_index = (FT_ULong)i;

        return FT_Err_Ok;
      }
    }

    FT_TRACE3(( "FT_Match_Size: no matching bitmap strike\n" ));

    return FT_THROW( Invalid_Pixel_Size );
  }

Referenced by FT_Request_Size().

ft_module_get_service()

ft_module_get_service	(	FT_Module	module,
		const char *	service_id,
		FT_Bool	global
	)

Definition at line 4880 of file ftobjs.c.

  {
    FT_Pointer  result = NULL;


    if ( module )
    {
      FT_ASSERT( module->clazz && module->clazz->get_interface );

      /* first, look for the service in the module */
      if ( module->clazz->get_interface )
        result = module->clazz->get_interface( module, service_id );

      if ( global && !result )
      {
        /* we didn't find it, look in all other modules then */
        FT_Library  library = module->library;
        FT_Module*  cur     = library->modules;
        FT_Module*  limit   = cur + library->num_modules;


        for ( ; cur < limit; cur++ )
        {
          if ( cur[0] != module )
          {
            FT_ASSERT( cur[0]->clazz );

            if ( cur[0]->clazz->get_interface )
            {
              result = cur[0]->clazz->get_interface( cur[0], service_id );
              if ( result )
                break;
            }
          }
        }
      }
    }

    return result;
  }

Referenced by cff_get_glyph_name(), cff_get_name_index(), FT_DEFINE_SERVICE_PSINFOREC(), FT_Get_TrueType_Engine_Type(), if(), and sfnt_init_face().

FT_New_Face()

FT_New_Face	(	FT_Library	library,
		const char *	pathname,
		FT_Long	face_index,
		FT_Face *	aface
	)

Definition at line 1406 of file ftobjs.c.

  {
    FT_Open_Args  args;


    /* test for valid `library' and `aface' delayed to `FT_Open_Face' */
    if ( !pathname )
      return FT_THROW( Invalid_Argument );

    args.flags    = FT_OPEN_PATHNAME;
    args.pathname = (char*)pathname;
    args.stream   = NULL;

    return ft_open_face_internal( library, &args, face_index, aface, 1 );
  }

Referenced by ExecuteTest().

FT_New_GlyphSlot()

FT_New_GlyphSlot	(	FT_Face	face,
		FT_GlyphSlot *	aslot
	)

Definition at line 559 of file ftobjs.c.

  {
    FT_Error         error;
    FT_Driver        driver;
    FT_Driver_Class  clazz;
    FT_Memory        memory;
    FT_GlyphSlot     slot = NULL;


    if ( !face )
      return FT_THROW( Invalid_Face_Handle );

    if ( !face->driver )
      return FT_THROW( Invalid_Argument );

    driver = face->driver;
    clazz  = driver->clazz;
    memory = driver->root.memory;

    FT_TRACE4(( "FT_New_GlyphSlot: Creating new slot object\n" ));
    if ( !FT_ALLOC( slot, clazz->slot_object_size ) )
    {
      slot->face = face;

      error = ft_glyphslot_init( slot );
      if ( error )
      {
        ft_glyphslot_done( slot );
        FT_FREE( slot );
        goto Exit;
      }

      slot->next  = face->glyph;
      face->glyph = slot;

      if ( aslot )
        *aslot = slot;
    }
    else if ( aslot )
      *aslot = NULL;


  Exit:
    FT_TRACE4(( "FT_New_GlyphSlot: Return 0x%x\n", error ));

    return error;
  }

Referenced by ft_open_face_internal(), and T42_GlyphSlot_Init().

FT_New_Library()

FT_New_Library	(	FT_Memory	memory,
		FT_Library *	alibrary
	)

Definition at line 5138 of file ftobjs.c.

  {
    FT_Library  library = NULL;
    FT_Error    error;


    if ( !memory || !alibrary )
      return FT_THROW( Invalid_Argument );

#ifdef FT_DEBUG_LEVEL_ERROR
    /* init debugging support */
    ft_debug_init();
#endif

    /* first of all, allocate the library object */
    if ( FT_NEW( library ) )
      return error;

    library->memory = memory;

#ifdef FT_CONFIG_OPTION_PIC
    /* initialize position independent code containers */
    error = ft_pic_container_init( library );
    if ( error )
      goto Fail;
#endif

    library->version_major = FREETYPE_MAJOR;
    library->version_minor = FREETYPE_MINOR;
    library->version_patch = FREETYPE_PATCH;

    library->refcount = 1;

    /* That's ok now */
    *alibrary = library;

    return FT_Err_Ok;

#ifdef FT_CONFIG_OPTION_PIC
  Fail:
    ft_pic_container_destroy( library );
    FT_FREE( library );
    return error;
#endif
  }

Referenced by FT_Init_FreeType().

FT_New_Memory_Face()

FT_New_Memory_Face	(	FT_Library	library,
		const FT_Byte *	file_base,
		FT_Long	file_size,
		FT_Long	face_index,
		FT_Face *	aface
	)

Definition at line 1431 of file ftobjs.c.

  {
    FT_Open_Args  args;


    /* test for valid `library' and `face' delayed to `FT_Open_Face' */
    if ( !file_base )
      return FT_THROW( Invalid_Argument );

    args.flags       = FT_OPEN_MEMORY;
    args.memory_base = file_base;
    args.memory_size = file_size;
    args.stream      = NULL;

    return ft_open_face_internal( library, &args, face_index, aface, 1 );
  }

Referenced by FtfdLoadFontFile(), FtfdQueryFont(), FtfdQueryFontTree(), and IntGdiLoadFontsFromMemory().

FT_New_Size()

FT_New_Size	(	FT_Face	face,
		FT_Size *	asize
	)

Definition at line 2762 of file ftobjs.c.

  {
    FT_Error         error;
    FT_Memory        memory;
    FT_Driver        driver;
    FT_Driver_Class  clazz;

    FT_Size          size = NULL;
    FT_ListNode      node = NULL;

    FT_Size_Internal  internal = NULL;


    if ( !face )
      return FT_THROW( Invalid_Face_Handle );

    if ( !asize )
      return FT_THROW( Invalid_Argument );

    if ( !face->driver )
      return FT_THROW( Invalid_Driver_Handle );

    *asize = NULL;

    driver = face->driver;
    clazz  = driver->clazz;
    memory = face->memory;

    /* Allocate new size object and perform basic initialisation */
    if ( FT_ALLOC( size, clazz->size_object_size ) || FT_NEW( node ) )
      goto Exit;

    size->face = face;

    if ( FT_NEW( internal ) )
      goto Exit;

    size->internal = internal;

    if ( clazz->init_size )
      error = clazz->init_size( size );

    /* in case of success, add to the face's list */
    if ( !error )
    {
      *asize     = size;
      node->data = size;
      FT_List_Add( &face->sizes_list, node );
    }

  Exit:
    if ( error )
    {
      FT_FREE( node );
      FT_FREE( size );
    }

    return error;
  }

Referenced by ft_open_face_internal(), ftc_scaler_lookup_size(), and T42_Size_Init().

FT_Open_Face()

FT_Open_Face	(	FT_Library	library,
		const FT_Open_Args *	args,
		FT_Long	face_index,
		FT_Face *	aface
	)

Definition at line 2317 of file ftobjs.c.

  {
    return ft_open_face_internal( library, args, face_index, aface, 1 );
  }

Referenced by T42_Face_Init().

ft_open_face_internal()

static FT_Error ft_open_face_internal ( FT_Library  library, const FT_Open_Args *  args, FT_Long  face_index, FT_Face *  aface, FT_Bool  test_mac_fonts  )

static

Definition at line 2327 of file ftobjs.c.

  {
    FT_Error     error;
    FT_Driver    driver = NULL;
    FT_Memory    memory = NULL;
    FT_Stream    stream = NULL;
    FT_Face      face   = NULL;
    FT_ListNode  node   = NULL;
    FT_Bool      external_stream;
    FT_Module*   cur;
    FT_Module*   limit;

#ifndef FT_CONFIG_OPTION_MAC_FONTS
    FT_UNUSED( test_mac_fonts );
#endif


#ifdef FT_DEBUG_LEVEL_TRACE
    FT_TRACE3(( "FT_Open_Face: " ));
    if ( face_index < 0 )
      FT_TRACE3(( "Requesting number of faces and named instances\n"));
    else
    {
      FT_TRACE3(( "Requesting face %ld", face_index & 0xFFFFL ));
      if ( face_index & 0x7FFF0000L )
        FT_TRACE3(( ", named instance %ld", face_index >> 16 ));
      FT_TRACE3(( "\n" ));
    }
#endif

    /* test for valid `library' delayed to `FT_Stream_New' */

    if ( ( !aface && face_index >= 0 ) || !args )
      return FT_THROW( Invalid_Argument );

    external_stream = FT_BOOL( ( args->flags & FT_OPEN_STREAM ) &&
                               args->stream                     );

    /* create input stream */
    error = FT_Stream_New( library, args, &stream );
    if ( error )
      goto Fail3;

    memory = library->memory;

    /* If the font driver is specified in the `args' structure, use */
    /* it.  Otherwise, we scan the list of registered drivers.      */
    if ( ( args->flags & FT_OPEN_DRIVER ) && args->driver )
    {
      driver = FT_DRIVER( args->driver );

      /* not all modules are drivers, so check... */
      if ( FT_MODULE_IS_DRIVER( driver ) )
      {
        FT_Int         num_params = 0;
        FT_Parameter*  params     = NULL;


        if ( args->flags & FT_OPEN_PARAMS )
        {
          num_params = args->num_params;
          params     = args->params;
        }

        error = open_face( driver, &stream, external_stream, face_index,
                           num_params, params, &face );
        if ( !error )
          goto Success;
      }
      else
        error = FT_THROW( Invalid_Handle );

      FT_Stream_Free( stream, external_stream );
      goto Fail;
    }
    else
    {
      error = FT_ERR( Missing_Module );

      /* check each font driver for an appropriate format */
      cur   = library->modules;
      limit = cur + library->num_modules;

      for ( ; cur < limit; cur++ )
      {
        /* not all modules are font drivers, so check... */
        if ( FT_MODULE_IS_DRIVER( cur[0] ) )
        {
          FT_Int         num_params = 0;
          FT_Parameter*  params     = NULL;


          driver = FT_DRIVER( cur[0] );

          if ( args->flags & FT_OPEN_PARAMS )
          {
            num_params = args->num_params;
            params     = args->params;
          }

          error = open_face( driver, &stream, external_stream, face_index,
                             num_params, params, &face );
          if ( !error )
            goto Success;

#ifdef FT_CONFIG_OPTION_MAC_FONTS
          if ( test_mac_fonts                                           &&
               ft_strcmp( cur[0]->clazz->module_name, "truetype" ) == 0 &&
               FT_ERR_EQ( error, Table_Missing )                        )
          {
            /* TrueType but essential tables are missing */
            error = FT_Stream_Seek( stream, 0 );
            if ( error )
              break;

            error = open_face_PS_from_sfnt_stream( library,
                                                   stream,
                                                   face_index,
                                                   num_params,
                                                   params,
                                                   aface );
            if ( !error )
            {
              FT_Stream_Free( stream, external_stream );
              return error;
            }
          }
#endif

          if ( FT_ERR_NEQ( error, Unknown_File_Format ) )
            goto Fail3;
        }
      }

    Fail3:
      /* If we are on the mac, and we get an                          */
      /* FT_Err_Invalid_Stream_Operation it may be because we have an */
      /* empty data fork, so we need to check the resource fork.      */
      if ( FT_ERR_NEQ( error, Cannot_Open_Stream )       &&
           FT_ERR_NEQ( error, Unknown_File_Format )      &&
           FT_ERR_NEQ( error, Invalid_Stream_Operation ) )
        goto Fail2;

#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS )
      if ( test_mac_fonts )
      {
        error = load_mac_face( library, stream, face_index, aface, args );
        if ( !error )
        {
          /* We don't want to go to Success here.  We've already done   */
          /* that.  On the other hand, if we succeeded we still need to */
          /* close this stream (we opened a different stream which      */
          /* extracted the interesting information out of this stream   */
          /* here.  That stream will still be open and the face will    */
          /* point to it).                                              */
          FT_Stream_Free( stream, external_stream );
          return error;
        }
      }

      if ( FT_ERR_NEQ( error, Unknown_File_Format ) )
        goto Fail2;
#endif  /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */

      /* no driver is able to handle this format */
      error = FT_THROW( Unknown_File_Format );

  Fail2:
      FT_Stream_Free( stream, external_stream );
      goto Fail;
    }

  Success:
    FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" ));

    /* add the face object to its driver's list */
    if ( FT_NEW( node ) )
      goto Fail;

    node->data = face;
    /* don't assume driver is the same as face->driver, so use */
    /* face->driver instead.                                   */
    FT_List_Add( &face->driver->faces_list, node );

    /* now allocate a glyph slot object for the face */
    FT_TRACE4(( "FT_Open_Face: Creating glyph slot\n" ));

    if ( face_index >= 0 )
    {
      error = FT_New_GlyphSlot( face, NULL );
      if ( error )
        goto Fail;

      /* finally, allocate a size object for the face */
      {
        FT_Size  size;


        FT_TRACE4(( "FT_Open_Face: Creating size object\n" ));

        error = FT_New_Size( face, &size );
        if ( error )
          goto Fail;

        face->size = size;
      }
    }

    /* some checks */

    if ( FT_IS_SCALABLE( face ) )
    {
      if ( face->height < 0 )
        face->height = (FT_Short)-face->height;

      if ( !FT_HAS_VERTICAL( face ) )
        face->max_advance_height = (FT_Short)face->height;
    }

    if ( FT_HAS_FIXED_SIZES( face ) )
    {
      FT_Int  i;


      for ( i = 0; i < face->num_fixed_sizes; i++ )
      {
        FT_Bitmap_Size*  bsize = face->available_sizes + i;


        if ( bsize->height < 0 )
          bsize->height = -bsize->height;
        if ( bsize->x_ppem < 0 )
          bsize->x_ppem = -bsize->x_ppem;
        if ( bsize->y_ppem < 0 )
          bsize->y_ppem = -bsize->y_ppem;

        /* check whether negation actually has worked */
        if ( bsize->height < 0 || bsize->x_ppem < 0 || bsize->y_ppem < 0 )
        {
          FT_TRACE0(( "FT_Open_Face:"
                      " Invalid bitmap dimensions for strike %d,"
                      " now disabled\n", i ));
          bsize->width  = 0;
          bsize->height = 0;
          bsize->size   = 0;
          bsize->x_ppem = 0;
          bsize->y_ppem = 0;
        }
      }
    }

    /* initialize internal face data */
    {
      FT_Face_Internal  internal = face->internal;


      internal->transform_matrix.xx = 0x10000L;
      internal->transform_matrix.xy = 0;
      internal->transform_matrix.yx = 0;
      internal->transform_matrix.yy = 0x10000L;

      internal->transform_delta.x = 0;
      internal->transform_delta.y = 0;

      internal->refcount = 1;

      internal->no_stem_darkening = -1;

#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
      /* Per-face filtering can only be set up by FT_Face_Properties */
      internal->lcd_filter_func = NULL;
#endif
    }

    if ( aface )
      *aface = face;
    else
      FT_Done_Face( face );

    goto Exit;

  Fail:
    if ( node )
      FT_Done_Face( face );    /* face must be in the driver's list */
    else if ( face )
      destroy_face( memory, face, driver );

  Exit:
#ifdef FT_DEBUG_LEVEL_TRACE
    if ( !error && face_index < 0 )
    {
      FT_TRACE3(( "FT_Open_Face: The font has %ld face%s\n"
                  "              and %ld named instance%s for face %ld\n",
                  face->num_faces,
                  face->num_faces == 1 ? "" : "s",
                  face->style_flags >> 16,
                  ( face->style_flags >> 16 ) == 1 ? "" : "s",
                  -face_index - 1 ));
    }
#endif

    FT_TRACE4(( "FT_Open_Face: Return 0x%x\n", error ));

    return error;
  }

Referenced by FT_New_Face(), FT_New_Memory_Face(), and FT_Open_Face().

ft_property_do()

static FT_Error ft_property_do ( FT_Library  library, const FT_String *  module_name, const FT_String *  property_name, void *  value, FT_Bool  set, FT_Bool  value_is_string  )

static

Definition at line 4967 of file ftobjs.c.

  {
    FT_Module*           cur;
    FT_Module*           limit;
    FT_Module_Interface  interface;

    FT_Service_Properties  service;

#ifdef FT_DEBUG_LEVEL_ERROR
    const FT_String*  set_name  = "FT_Property_Set";
    const FT_String*  get_name  = "FT_Property_Get";
    const FT_String*  func_name = set ? set_name : get_name;