ftobjs.c File Reference

#include <freetype/ftlist.h>
#include <freetype/ftoutln.h>
#include <freetype/ftfntfmt.h>
#include <freetype/internal/ftvalid.h>
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftrfork.h>
#include <freetype/internal/ftstream.h>
#include <freetype/internal/sfnt.h>
#include <freetype/internal/psaux.h>
#include <freetype/tttables.h>
#include <freetype/tttags.h>
#include <freetype/ttnameid.h>
#include <freetype/internal/services/svprop.h>
#include <freetype/internal/services/svsfnt.h>
#include <freetype/internal/services/svpostnm.h>
#include <freetype/internal/services/svgldict.h>
#include <freetype/internal/services/svttcmap.h>
#include <freetype/internal/services/svkern.h>
#include <freetype/internal/services/svtteng.h>
#include <freetype/ftdriver.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   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, const 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)
	FT_Get_Color_Glyph_Layer (FT_Face face, FT_UInt base_glyph, FT_UInt *aglyph_index, FT_UInt *acolor_index, FT_LayerIterator *iterator)

Macro Definition Documentation

FREETYPE_VER_FIXED

#define FREETYPE_VER_FIXED

Value:

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

FT_COMPONENT

#define FT_COMPONENT   objs

Definition at line 280 of file ftobjs.c.

GRID_FIT_METRICS

#define GRID_FIT_METRICS

Definition at line 96 of file ftobjs.c.

Function Documentation

destroy_charmaps()

static void destroy_charmaps ( FT_Face  face, FT_Memory  memory  )

static

Definition at line 1141 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 1218 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 1167 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 4841 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 1119 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 1242 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 1330 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 4293 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 4871 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 4395 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 2703 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 2725 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 3631 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 3616 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 3677 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 2783 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 FT_Done_Library(), ft_open_face_internal(), ftc_face_node_done(), FtfdQueryFont(), FtfdUnloadFontFile(), SharedFace_Release(), and T42_Face_Done().

FT_Done_GlyphSlot()

FT_Done_GlyphSlot

(

FT_GlyphSlot

slot

)

Definition at line 648 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(), FT_Render_Glyph_Internal(), and T42_GlyphSlot_Done().

FT_Done_Library()

FT_Done_Library

(

FT_Library

library

)

Definition at line 5353 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
 
    FT_FREE( library );
 
  Exit:
    return FT_Err_Ok;
  }

Referenced by FreeFontSupport(), and FT_Done_FreeType().

FT_Done_Size()

FT_Done_Size

(

FT_Size

size

)

Definition at line 2891 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 4047 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%lx 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 3897 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%lx is truncated\n", charcode ));
        }
        if ( variantSelector > 0xFFFFFFFFUL )
        {
          FT_TRACE1(( "FT_Face_GetCharVariantIndex:"
                      " too large variantSelector" ));
          FT_TRACE1(( " 0x%lx 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 3943 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%lx is truncated\n", charcode ));
        }
        if ( variantSelector > 0xFFFFFFFFUL )
        {
          FT_TRACE1(( "FT_Face_GetCharVariantIsDefault:"
                      " too large variantSelector" ));
          FT_TRACE1(( " 0x%lx 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 3986 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 4013 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%lx 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 3818 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 3731 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%lx 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 3597 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 4269 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 4245 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_Color_Glyph_Layer()

FT_Get_Color_Glyph_Layer	(	FT_Face	face,
		FT_UInt	base_glyph,
		FT_UInt *	aglyph_index,
		FT_UInt *	acolor_index,
		FT_LayerIterator *	iterator
	)

Definition at line 5536 of file ftobjs.c.

  {
    TT_Face       ttface;
    SFNT_Service  sfnt;
 
 
    if ( !face                                   ||
         !aglyph_index                           ||
         !acolor_index                           ||
         !iterator                               ||
         base_glyph >= (FT_UInt)face->num_glyphs )
      return 0;
 
    if ( !FT_IS_SFNT( face ) )
      return 0;
 
    ttface = (TT_Face)face;
    sfnt   = (SFNT_Service)ttface->sfnt;
 
    if ( sfnt->get_colr_layer )
      return sfnt->get_colr_layer( ttface,
                                   base_glyph,
                                   aglyph_index,
                                   acolor_index,
                                   iterator );
    else
      return 0;
  }

Referenced by FT_Render_Glyph_Internal().

FT_Get_First_Char()

FT_Get_First_Char	(	FT_Face	face,
		FT_UInt *	agindex
	)

Definition at line 3760 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 4110 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 3411 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"
                            " (%ld, %ld) scaled down to (%ld, %ld) 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(), IntGetTextDisposition(), and TextIntGetTextExtentPoint().

FT_Get_Module()

FT_Get_Module	(	FT_Library	library,
		const char *	module_name
	)

Definition at line 4984 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 5012 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(), sfnt_init_face(), T1_Face_Init(), T42_Face_Init(), and tt_face_init().

FT_Get_Name_Index()

FT_Get_Name_Index	(	FT_Face	face,
		const FT_String *	glyph_name
	)

Definition at line 4082 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 3785 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 4147 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 4479 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 4176 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(), IntGetFontDefaultChar(), IntGetOutlineTextMetrics(), and IntRequestFontSize().

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 5501 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 3490 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 5470 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 514 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 532 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 564 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 325 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 743 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 297 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 347 of file ftobjs.c.

  {
    FT_Outline*  outline = &slot->outline;
    FT_Bitmap*   bitmap  = &slot->bitmap;
 
    FT_Pixel_Mode  pixel_mode;
 
    FT_BBox  cbox, pbox;
    FT_Pos   x_shift = 0;
    FT_Pos   y_shift = 0;
    FT_Pos   x_left, y_top;
    FT_Pos   width, height, pitch;
 
 
    if ( slot->format != FT_GLYPH_FORMAT_OUTLINE )
      return 1;
 
    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 );
 
    /* rough estimate of pixel box */
    pbox.xMin = ( cbox.xMin >> 6 ) + ( x_shift >> 6 );
    pbox.yMin = ( cbox.yMin >> 6 ) + ( y_shift >> 6 );
    pbox.xMax = ( cbox.xMax >> 6 ) + ( x_shift >> 6 );
    pbox.yMax = ( cbox.yMax >> 6 ) + ( y_shift >> 6 );
 
    /* tiny remainder box */
    cbox.xMin = ( cbox.xMin & 63 ) + ( x_shift & 63 );
    cbox.yMin = ( cbox.yMin & 63 ) + ( y_shift & 63 );
    cbox.xMax = ( cbox.xMax & 63 ) + ( x_shift & 63 );
    cbox.yMax = ( cbox.yMax & 63 ) + ( y_shift & 63 );
 
    switch ( mode )
    {
    case FT_RENDER_MODE_MONO:
      pixel_mode = FT_PIXEL_MODE_MONO;
#if 1
      /* x */
 
      /* undocumented but confirmed: bbox values get rounded;    */
      /* we do asymmetric rounding so that the center of a pixel */
      /* gets always included                                    */
 
      pbox.xMin += ( cbox.xMin + 31 ) >> 6;
      pbox.xMax += ( cbox.xMax + 32 ) >> 6;
 
      /* if the bbox collapsed, we add a pixel based on the total */
      /* rounding remainder to cover most of the original cbox    */
 
      if ( pbox.xMin == pbox.xMax )
      {
        if ( ( ( cbox.xMin + 31 ) & 63 ) - 31 +
             ( ( cbox.xMax + 32 ) & 63 ) - 32 < 0 )
          pbox.xMin -= 1;
        else
          pbox.xMax += 1;
      }
 
      /* y */
 
      pbox.yMin += ( cbox.yMin + 31 ) >> 6;
      pbox.yMax += ( cbox.yMax + 32 ) >> 6;
 
      if ( pbox.yMin == pbox.yMax )
      {
        if ( ( ( cbox.yMin + 31 ) & 63 ) - 31 +
             ( ( cbox.yMax + 32 ) & 63 ) - 32 < 0 )
          pbox.yMin -= 1;
        else
          pbox.yMax += 1;
      }
 
      break;
#else
      goto Adjust;
#endif
 
    case FT_RENDER_MODE_LCD:
      pixel_mode = FT_PIXEL_MODE_LCD;
      ft_lcd_padding( &cbox, slot, mode );
      goto Adjust;
 
    case FT_RENDER_MODE_LCD_V:
      pixel_mode = FT_PIXEL_MODE_LCD_V;
      ft_lcd_padding( &cbox, slot, mode );
      goto Adjust;
 
    case FT_RENDER_MODE_NORMAL:
    case FT_RENDER_MODE_LIGHT:
    default:
      pixel_mode = FT_PIXEL_MODE_GRAY;
    Adjust:
      pbox.xMin += cbox.xMin >> 6;
      pbox.yMin += cbox.yMin >> 6;
      pbox.xMax += ( cbox.xMax + 63 ) >> 6;
      pbox.yMax += ( cbox.yMax + 63 ) >> 6;
    }
 
    x_left = pbox.xMin;
    y_top  = pbox.yMax;
 
    width  = pbox.xMax - pbox.xMin;
    height = pbox.yMax - pbox.yMin;
 
    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;
 
    if ( pbox.xMin < -0x8000 || pbox.xMax > 0x7FFF ||
         pbox.yMin < -0x8000 || pbox.yMax > 0x7FFF )
    {
      FT_TRACE3(( "ft_glyphslot_preset_bitmap: [%ld %ld %ld %ld]\n",
                  pbox.xMin, pbox.yMin, pbox.xMax, pbox.yMax ));
      return 1;
    }
 
    return 0;
  }

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

ft_glyphslot_set_bitmap()

ft_glyphslot_set_bitmap	(	FT_GlyphSlot	slot,
		FT_Byte *	buffer
	)

Definition at line 502 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 5322 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 1099 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 796 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,
     *   - 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_IS_SCALABLE( face )                           &&
         !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 );
      }
    }
 
    slot->glyph_index          = glyph_index;
    slot->internal->load_flags = load_flags;
 
    /* 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 );
    }
 
#ifdef FT_DEBUG_LEVEL_TRACE
    FT_TRACE5(( "FT_Load_Glyph: index %d, flags 0x%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(( "\n" ));
    FT_TRACE5(( "  bitmap %dx%d, %s (mode %d)\n",
                slot->bitmap.width,
                slot->bitmap.rows,
                pixel_modes[slot->bitmap.pixel_mode],
                slot->bitmap.pixel_mode ));
    FT_TRACE5(( "\n" ));
 
    {
      FT_Glyph_Metrics*  metrics = &slot->metrics;
 
 
      FT_TRACE5(( "  metrics:\n" ));
      FT_TRACE5(( "    width:  %f\n", metrics->width  / 64.0 ));
      FT_TRACE5(( "    height: %f\n", metrics->height / 64.0 ));
      FT_TRACE5(( "\n" ));
      FT_TRACE5(( "    horiBearingX: %f\n", metrics->horiBearingX / 64.0 ));
      FT_TRACE5(( "    horiBearingY: %f\n", metrics->horiBearingY / 64.0 ));
      FT_TRACE5(( "    horiAdvance:  %f\n", metrics->horiAdvance  / 64.0 ));
      FT_TRACE5(( "\n" ));
      FT_TRACE5(( "    vertBearingX: %f\n", metrics->vertBearingX / 64.0 ));
      FT_TRACE5(( "    vertBearingY: %f\n", metrics->vertBearingY / 64.0 ));
      FT_TRACE5(( "    vertAdvance:  %f\n", metrics->vertAdvance  / 64.0 ));
    }
#endif
 
  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(), FT_Render_Glyph_Internal(), ftc_basic_family_load_bitmap(), ftc_basic_family_load_glyph(), ftGdiGetGlyphOutline(), GreGetCharWidthW(), IntGetRealGlyph(), and NtGdiGetCharABCWidthsW().

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 4197 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(), and IntFontType().

ft_lookup_glyph_renderer()

static FT_Renderer ft_lookup_glyph_renderer ( FT_GlyphSlot  slot )

static

Definition at line 4369 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 4327 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_Renderer(), ft_lookup_glyph_renderer(), FT_New_Glyph(), 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 2939 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 5027 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 1468 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 );
  }

FT_New_GlyphSlot()

FT_New_GlyphSlot	(	FT_Face	face,
		FT_GlyphSlot *	aslot
	)

Definition at line 595 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(), FT_Render_Glyph_Internal(), and T42_GlyphSlot_Init().

FT_New_Library()

FT_New_Library	(	FT_Memory	memory,
		FT_Library *	alibrary
	)

Definition at line 5285 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;
 
    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;
  }

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 1493 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 IntGdiLoadFontByIndexFromMemory().

FT_New_Size()

FT_New_Size	(	FT_Face	face,
		FT_Size *	asize
	)

Definition at line 2824 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 );
      if ( size )
        FT_FREE( size->internal );
      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 2379 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 2389 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 5114 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;
#endif
 
    FT_Bool  missing_func;
 
 
    if ( !library )
      return FT_THROW( Invalid_Library_Handle );
 
    if ( !module_name || !property_name || !value )
      return FT_THROW( Invalid_Argument );
 
    cur   = library->modules;
    limit = cur + library->num_modules;
 
    /* search module */
    for ( ; cur < limit; cur++ )
      if ( !ft_strcmp( cur[0]->clazz->module_name, module_name ) )
        break;
 
    if ( cur == limit )
    {
      FT_ERROR(( "%s: can't find module `%s'\n",
                 func_name, module_name ));
      return FT_THROW( Missing_Module );
    }
 
    /* check whether we have a service interface */
    if ( !cur[0]->clazz->get_interface )
    {
      FT_ERROR(( "%s: module `%s' doesn't support properties\n",
                 func_name, module_name ));
      return FT_THROW( Unimplemented_Feature );
    }
 
    /* search property service */
    interface = cur[0]->clazz->get_interface( cur[0],
                                              FT_SERVICE_ID_PROPERTIES );
    if ( !interface )
    {
      FT_ERROR(( "%s: module `%s' doesn't support properties\n",
                 func_name, module_name ));
      return FT_THROW( Unimplemented_Feature );
    }
 
    service = (FT_Service_Properties)interface;
 
    if ( set )
      missing_func = FT_BOOL( !service->set_property );
    else
      missing_func = FT_BOOL( !service->get_property );
 
    if ( missing_func )
    {
      FT_ERROR(( "%s: property service of module `%s' is broken\n",
                 func_name, module_name ));
      return FT_THROW( Unimplemented_Feature );
    }
 
    return set ? service->set_property( cur[0],
                                        property_name,
                                        value,
                                        value_is_string )
               : service->get_property( cur[0],
                                        property_name,
                                        value );
  }

Referenced by FT_Property_Get(), and FT_Property_Set().

FT_Property_Get()

FT_Property_Get	(	FT_Library	library,
		const FT_String *	module_name,
		const FT_String *	property_name,
		void *	value
	)

Definition at line 5219 of file ftobjs.c.

  {
    return ft_property_do( library,
                           module_name,
                           property_name,
                           value,
                           FALSE,
                           FALSE );
  }

FT_Property_Set()

FT_Property_Set	(	FT_Library	library,
		const FT_String *	module_name,
		const FT_String *	property_name,
		const void *	value
	)

Definition at line 5202 of file ftobjs.c.

  {
    return ft_property_do( library,
                           module_name,
                           property_name,
                           (void*)value,
                           TRUE,
                           FALSE );
  }

ft_recompute_scaled_metrics()

static void ft_recompute_scaled_metrics ( FT_Face  face, FT_Size_Metrics *  metrics  )

static

Definition at line 3023 of file ftobjs.c.

  {
    /* Compute root ascender, descender, test height, and max_advance */
 
#ifdef GRID_FIT_METRICS
    metrics->ascender    = FT_PIX_CEIL( FT_MulFix( face->ascender,
                                                   metrics->y_scale ) );
 
    metrics->descender   = FT_PIX_FLOOR( FT_MulFix( face->descender,
                                                    metrics->y_scale ) );
 
    metrics->height      = FT_PIX_ROUND( FT_MulFix( face->height,
                                                    metrics->y_scale ) );
 
    metrics->max_advance = FT_PIX_ROUND( FT_MulFix( face->max_advance_width,
                                                    metrics->x_scale ) );
#else /* !GRID_FIT_METRICS */
    metrics->ascender    = FT_MulFix( face->ascender,
                                      metrics->y_scale );
 
    metrics->descender   = FT_MulFix( face->descender,
                                      metrics->y_scale );
 
    metrics->height      = FT_MulFix( face->height,
                                      metrics->y_scale );
 
    metrics->max_advance = FT_MulFix( face->max_advance_width,
                                      metrics->x_scale );
#endif /* !GRID_FIT_METRICS */
  }

Referenced by FT_Request_Metrics(), and FT_Select_Metrics().

FT_Reference_Face()

FT_Reference_Face

(

FT_Face

face

)

Definition at line 2769 of file ftobjs.c.

  {
    if ( !face )
      return FT_THROW( Invalid_Face_Handle );
 
    face->internal->refcount++;
 
    return FT_Err_Ok;
  }

FT_Reference_Library()

FT_Reference_Library

(

FT_Library

library

)

Definition at line 5271 of file ftobjs.c.

  {
    if ( !library )
      return FT_THROW( Invalid_Library_Handle );
 
    library->refcount++;
 
    return FT_Err_Ok;
  }

FT_Remove_Module()

FT_Remove_Module	(	FT_Library	library,
		FT_Module	module
	)

Definition at line 5074 of file ftobjs.c.

  {
    /* try to find the module from the table, then remove it from there */
 
    if ( !library )
      return FT_THROW( Invalid_Library_Handle );
 
    if ( module )
    {
      FT_Module*  cur   = library->modules;
      FT_Module*  limit = cur + library->num_modules;
 
 
      for ( ; cur < limit; cur++ )
      {
        if ( cur[0] == module )
        {
          /* remove it from the table */
          library->num_modules--;
          limit--;
          while ( cur < limit )
          {
            cur[0] = cur[1];
            cur++;
          }
          limit[0] = NULL;
 
          /* destroy the module */
          Destroy_Module( module );
 
          return FT_Err_Ok;
        }
      }
    }
    return FT_THROW( Invalid_Driver_Handle );
  }

Referenced by FT_Add_Module(), and FT_Done_Library().

ft_remove_renderer()

static void ft_remove_renderer ( FT_Module  module )

static

Definition at line 4443 of file ftobjs.c.

  {
    FT_Library   library;
    FT_Memory    memory;
    FT_ListNode  node;
 
 
    library = module->library;
    if ( !library )
      return;
 
    memory = library->memory;
 
    node = FT_List_Find( &library->renderers, module );
    if ( node )
    {
      FT_Renderer  render = FT_RENDERER( module );
 
 
      /* release raster object, if any */
      if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
           render->raster                                         )
        render->clazz->raster_class->raster_done( render->raster );
 
      /* remove from list */
      FT_List_Remove( &library->renderers, node );
      FT_FREE( node );
 
      ft_set_current_renderer( library );
    }
  }

Referenced by Destroy_Module().

FT_Render_Glyph()

FT_Render_Glyph	(	FT_GlyphSlot	slot,
		FT_Render_Mode	render_mode
	)

Definition at line 4796 of file ftobjs.c.

  {
    FT_Library  library;
 
 
    if ( !slot || !slot->face )
      return FT_THROW( Invalid_Argument );
 
    library = FT_FACE_LIBRARY( slot->face );
 
    return FT_Render_Glyph_Internal( library, slot, render_mode );
  }

Referenced by FT_Load_Glyph().

FT_Render_Glyph_Internal()

FT_Render_Glyph_Internal	(	FT_Library	library,
		FT_GlyphSlot	slot,
		FT_Render_Mode	render_mode
	)

Definition at line 4548 of file ftobjs.c.

  {
    FT_Error     error = FT_Err_Ok;
    FT_Face      face  = slot->face;
    FT_Renderer  renderer;
 
 
    switch ( slot->format )
    {
    case FT_GLYPH_FORMAT_BITMAP:   /* already a bitmap, don't do anything */
      break;
 
    default:
      if ( slot->internal->load_flags & FT_LOAD_COLOR )
      {
        FT_LayerIterator  iterator;
 
        FT_UInt  base_glyph = slot->glyph_index;
 
        FT_Bool  have_layers;
        FT_UInt  glyph_index;
        FT_UInt  color_index;
 
 
        /* check whether we have colored glyph layers */
        iterator.p  = NULL;
        have_layers = FT_Get_Color_Glyph_Layer( face,
                                                base_glyph,
                                                &glyph_index,
                                                &color_index,
                                                &iterator );
        if ( have_layers )
        {
          error = FT_New_GlyphSlot( face, NULL );
          if ( !error )
          {
            TT_Face       ttface = (TT_Face)face;
            SFNT_Service  sfnt   = (SFNT_Service)ttface->sfnt;
 
 
            do
            {
              FT_Int32  load_flags = slot->internal->load_flags;
 
 
              /* disable the `FT_LOAD_COLOR' flag to avoid recursion */
              /* right here in this function                         */
              load_flags &= ~FT_LOAD_COLOR;
 
              /* render into the new `face->glyph' glyph slot */
              load_flags |= FT_LOAD_RENDER;
 
              error = FT_Load_Glyph( face, glyph_index, load_flags );
              if ( error )
                break;
 
              /* blend new `face->glyph' into old `slot'; */
              /* at the first call, `slot' is still empty */
              error = sfnt->colr_blend( ttface,
                                        color_index,
                                        slot,
                                        face->glyph );
              if ( error )
                break;
 
            } while ( FT_Get_Color_Glyph_Layer( face,
                                                base_glyph,
                                                &glyph_index,
                                                &color_index,
                                                &iterator ) );
 
            if ( !error )
              slot->format = FT_GLYPH_FORMAT_BITMAP;
 
            /* this call also restores `slot' as the glyph slot */
            FT_Done_GlyphSlot( face->glyph );
          }
 
          if ( !error )
            return error;
 
          /* Failed to do the colored layer.  Draw outline instead. */
          slot->format = FT_GLYPH_FORMAT_OUTLINE;
        }
      }
 
      {
        FT_ListNode  node = NULL;
 
 
        /* small shortcut for the very common case */
        if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
        {
          renderer = library->cur_renderer;
          node     = library->renderers.head;
        }
        else
          renderer = FT_Lookup_Renderer( library, slot->format, &node );
 
        error = FT_ERR( Unimplemented_Feature );
        while ( renderer )
        {
          error = renderer->render( renderer, slot, render_mode, NULL );
          if ( !error                                   ||
               FT_ERR_NEQ( error, Cannot_Render_Glyph ) )
            break;
 
          /* FT_Err_Cannot_Render_Glyph is returned if the render mode   */
          /* is unsupported by the current renderer for this glyph image */
          /* format.                                                     */
 
          /* now, look for another renderer that supports the same */
          /* format.                                               */
          renderer = FT_Lookup_Renderer( library, slot->format, &node );
        }
      }
    }
 
#ifdef FT_DEBUG_LEVEL_TRACE
 
#undef  FT_COMPONENT
#define FT_COMPONENT  checksum
 
    /*
     * Computing the MD5 checksum is expensive, unnecessarily distorting a
     * possible profiling of FreeType if compiled with tracing support.  For
     * this reason, we execute the following code only if explicitly
     * requested.
     */
 
    /* we use FT_TRACE3 in this block */
    if ( !error                               &&
         ft_trace_levels[trace_checksum] >= 3 &&
         slot->bitmap.buffer                  )
    {
      FT_Bitmap  bitmap;
      FT_Error   err;
 
 
      FT_Bitmap_Init( &bitmap );
 
      /* we convert to a single bitmap format for computing the checksum */
      /* this also converts the bitmap flow to `down' (i.e., pitch > 0)  */
      err = FT_Bitmap_Convert( library, &slot->bitmap, &bitmap, 1 );
      if ( !err )
      {
        MD5_CTX        ctx;
        unsigned char  md5[16];
        unsigned long  coverage = 0;
        int            i, j;
        int            rows  = (int)bitmap.rows;
        int            pitch = bitmap.pitch;
 
 
        FT_TRACE3(( "FT_Render_Glyph: bitmap %dx%d, %s (mode %d)\n",
                    pitch,
                    rows,
                    pixel_modes[slot->bitmap.pixel_mode],
                    slot->bitmap.pixel_mode ));
 
        for ( i = 0; i < rows; i++ )
          for ( j = 0; j < pitch; j++ )
            coverage += bitmap.buffer[i * pitch + j];
 
        FT_TRACE3(( "  Total coverage: %lu\n", coverage ));
 
        MD5_Init( &ctx );
        if ( bitmap.buffer )
          MD5_Update( &ctx, bitmap.buffer,
                      (unsigned long)rows * (unsigned long)pitch );
        MD5_Final( md5, &ctx );
 
        FT_TRACE3(( "  MD5 checksum: " ));
        for ( i = 0; i < 16; i++ )
          FT_TRACE3(( "%02X", md5[i] ));
        FT_TRACE3(( "\n" ));
      }
 
      FT_Bitmap_Done( library, &bitmap );
    }
 
    /*
     * Dump bitmap in Netpbm format (PBM or PGM).
     */
 
    /* we use FT_TRACE7 in this block */
    if ( !error                               &&
         ft_trace_levels[trace_checksum] >= 7 )
    {
      if ( slot->bitmap.rows  < 128U &&
           slot->bitmap.width < 128U &&
           slot->bitmap.buffer       )
      {
        int  rows  = (int)slot->bitmap.rows;
        int  width = (int)slot->bitmap.width;
        int  pitch =      slot->bitmap.pitch;
        int  i, j, m;
 
        unsigned char*  topleft = slot->bitmap.buffer;
 
 
        if ( pitch < 0 )
          topleft -= pitch * ( rows - 1 );
 
        FT_TRACE7(( "Netpbm image: start\n" ));
        switch ( slot->bitmap.pixel_mode )
        {
        case FT_PIXEL_MODE_MONO:
          FT_TRACE7(( "P1 %d %d\n", width, rows ));
          for ( i = 0; i < rows; i++ )
          {
            for ( j = 0; j < width; )
              for ( m = 128; m > 0 && j < width; m >>= 1, j++ )
                FT_TRACE7(( " %d",
                            ( topleft[i * pitch + j / 8] & m ) != 0 ));
            FT_TRACE7(( "\n" ));
          }
          break;
 
        default:
          FT_TRACE7(( "P2 %d %d 255\n", width, rows ));
          for ( i = 0; i < rows; i++ )
          {
            for ( j = 0; j < width; j += 1 )
              FT_TRACE7(( " %3u", topleft[i * pitch + j] ));
            FT_TRACE7(( "\n" ));
          }
        }
        FT_TRACE7(( "Netpbm image: end\n" ));
      }
      else
        FT_TRACE7(( "Netpbm image: too large, omitted\n" ));
    }
 
#undef  FT_COMPONENT
#define FT_COMPONENT  objs
 
#endif /* FT_DEBUG_LEVEL_TRACE */
 
    return error;
  }

Referenced by FT_Glyph_To_Bitmap(), and FT_Render_Glyph().

FT_Request_Metrics()

FT_Request_Metrics	(	FT_Face	face,
		FT_Size_Request	req
	)

Definition at line 3092 of file ftobjs.c.

  {
    FT_Size_Metrics*  metrics;
 
 
    metrics = &face->size->metrics;
 
    if ( FT_IS_SCALABLE( face ) )
    {
      FT_Long  w = 0, h = 0, scaled_w = 0, scaled_h = 0;
 
 
      switch ( req->type )
      {
      case FT_SIZE_REQUEST_TYPE_NOMINAL:
        w = h = face->units_per_EM;
        break;
 
      case FT_SIZE_REQUEST_TYPE_REAL_DIM:
        w = h = face->ascender - face->descender;
        break;
 
      case FT_SIZE_REQUEST_TYPE_BBOX:
        w = face->bbox.xMax - face->bbox.xMin;
        h = face->bbox.yMax - face->bbox.yMin;
        break;
 
      case FT_SIZE_REQUEST_TYPE_CELL:
        w = face->max_advance_width;
        h = face->ascender - face->descender;
        break;
 
      case FT_SIZE_REQUEST_TYPE_SCALES:
        metrics->x_scale = (FT_Fixed)req->width;
        metrics->y_scale = (FT_Fixed)req->height;
        if ( !metrics->x_scale )
          metrics->x_scale = metrics->y_scale;
        else if ( !metrics->y_scale )
          metrics->y_scale = metrics->x_scale;
        goto Calculate_Ppem;
 
      case FT_SIZE_REQUEST_TYPE_MAX:
        break;
      }
 
      /* to be on the safe side */
      if ( w < 0 )
        w = -w;
 
      if ( h < 0 )
        h = -h;
 
      scaled_w = FT_REQUEST_WIDTH ( req );
      scaled_h = FT_REQUEST_HEIGHT( req );
 
      /* determine scales */
      if ( req->width )
      {
        metrics->x_scale = FT_DivFix( scaled_w, w );
 
        if ( req->height )
        {
          metrics->y_scale = FT_DivFix( scaled_h, h );
 
          if ( req->type == FT_SIZE_REQUEST_TYPE_CELL )
          {
            if ( metrics->y_scale > metrics->x_scale )
              metrics->y_scale = metrics->x_scale;
            else
              metrics->x_scale = metrics->y_scale;
          }
        }
        else
        {
          metrics->y_scale = metrics->x_scale;
          scaled_h = FT_MulDiv( scaled_w, h, w );
        }
      }
      else
      {
        metrics->x_scale = metrics->y_scale = FT_DivFix( scaled_h, h );
        scaled_w = FT_MulDiv( scaled_h, w, h );
      }
 
  Calculate_Ppem:
      /* calculate the ppems */
      if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL )
      {
        scaled_w = FT_MulFix( face->units_per_EM, metrics->x_scale );
        scaled_h = FT_MulFix( face->units_per_EM, metrics->y_scale );
      }
 
      metrics->x_ppem = (FT_UShort)( ( scaled_w + 32 ) >> 6 );
      metrics->y_ppem = (FT_UShort)( ( scaled_h + 32 ) >> 6 );
 
      ft_recompute_scaled_metrics( face, metrics );
    }
    else
    {
      FT_ZERO( metrics );
      metrics->x_scale = 1L << 16;
      metrics->y_scale = 1L << 16;
    }
  }

Referenced by cff_size_request(), cid_size_request(), FT_Request_Size(), T1_Size_Request(), and tt_size_request().

FT_Request_Size()

FT_Request_Size	(	FT_Face	face,
		FT_Size_Request	req
	)

Definition at line 3256 of file ftobjs.c.

  {
    FT_Error         error = FT_Err_Ok;
    FT_Driver_Class  clazz;
    FT_ULong         strike_index;
 
 
    if ( !face )
      return FT_THROW( Invalid_Face_Handle );
 
    if ( !req || req->width < 0 || req->height < 0 ||
         req->type >= FT_SIZE_REQUEST_TYPE_MAX )
      return FT_THROW( Invalid_Argument );
 
    /* signal the auto-hinter to recompute its size metrics */
    /* (if requested)                                       */
    face->size->internal->autohint_metrics.x_scale = 0;
 
    clazz = face->driver->clazz;
 
    if ( clazz->request_size )
    {
      error = clazz->request_size( face->size, req );
 
      FT_TRACE5(( "FT_Request_Size (%s driver):\n",
                  face->driver->root.clazz->module_name ));
    }
    else if ( !FT_IS_SCALABLE( face ) && FT_HAS_FIXED_SIZES( face ) )
    {
      /*
       * The reason that a driver doesn't have `request_size' defined is
       * either that the scaling here suffices or that the supported formats
       * are bitmap-only and size matching is not implemented.
       *
       * In the latter case, a simple size matching is done.
       */
      error = FT_Match_Size( face, req, 0, &strike_index );
      if ( error )
        return error;
 
      return FT_Select_Size( face, (FT_Int)strike_index );
    }
    else
    {
      FT_Request_Metrics( face, req );
 
      FT_TRACE5(( "FT_Request_Size:\n" ));
    }
 
#ifdef FT_DEBUG_LEVEL_TRACE
    {
      FT_Size_Metrics*  metrics = &face->size->metrics;
 
 
      FT_TRACE5(( "  x scale: %ld (%f)\n",
                  metrics->x_scale, metrics->x_scale / 65536.0 ));
      FT_TRACE5(( "  y scale: %ld (%f)\n",
                  metrics->y_scale, metrics->y_scale / 65536.0 ));
      FT_TRACE5(( "  ascender: %f\n",    metrics->ascender / 64.0 ));
      FT_TRACE5(( "  descender: %f\n",   metrics->descender / 64.0 ));
      FT_TRACE5(( "  height: %f\n",      metrics->height / 64.0 ));
      FT_TRACE5(( "  max advance: %f\n", metrics->max_advance / 64.0 ));
      FT_TRACE5(( "  x ppem: %d\n",      metrics->x_ppem ));
      FT_TRACE5(( "  y ppem: %d\n",      metrics->y_ppem ));
    }
#endif
 
    return error;
  }

Referenced by FT_Set_Char_Size(), FT_Set_Pixel_Sizes(), IntRequestFontSize(), and T42_Size_Request().

FT_Select_Charmap()

FT_Select_Charmap	(	FT_Face	face,
		FT_Encoding	encoding
	)

Definition at line 3521 of file ftobjs.c.

  {
    FT_CharMap*  cur;
    FT_CharMap*  limit;
 
 
    if ( !face )
      return FT_THROW( Invalid_Face_Handle );
 
    /* FT_ENCODING_NONE is a valid encoding for BDF, PCF, and Windows FNT */
    if ( encoding == FT_ENCODING_NONE && !face->num_charmaps )
      return FT_THROW( Invalid_Argument );
 
    /* FT_ENCODING_UNICODE is special.  We try to find the `best' Unicode */
    /* charmap available, i.e., one with UCS-4 characters, if possible.   */
    /*                                                                    */
    /* This is done by find_unicode_charmap() above, to share code.       */
    if ( encoding == FT_ENCODING_UNICODE )
      return find_unicode_charmap( face );
 
    cur = face->charmaps;
    if ( !cur )
      return FT_THROW( Invalid_CharMap_Handle );
 
    limit = cur + face->num_charmaps;
 
    for ( ; cur < limit; cur++ )
    {
      if ( cur[0]->encoding == encoding )
      {
        face->charmap = cur[0];
        return FT_Err_Ok;
      }
    }
 
    return FT_THROW( Invalid_Argument );
  }

Referenced by af_face_globals_compute_style_coverage(), af_latin_metrics_init(), and FtfdLoadFontFile().

FT_Select_Metrics()

FT_Select_Metrics	(	FT_Face	face,
		FT_ULong	strike_index
	)

Definition at line 3057 of file ftobjs.c.

  {
    FT_Size_Metrics*  metrics;
    FT_Bitmap_Size*   bsize;
 
 
    metrics = &face->size->metrics;
    bsize   = face->available_sizes + strike_index;
 
    metrics->x_ppem = (FT_UShort)( ( bsize->x_ppem + 32 ) >> 6 );
    metrics->y_ppem = (FT_UShort)( ( bsize->y_ppem + 32 ) >> 6 );
 
    if ( FT_IS_SCALABLE( face ) )
    {
      metrics->x_scale = FT_DivFix( bsize->x_ppem,
                                    face->units_per_EM );
      metrics->y_scale = FT_DivFix( bsize->y_ppem,
                                    face->units_per_EM );
 
      ft_recompute_scaled_metrics( face, metrics );
    }
    else
    {
      metrics->x_scale     = 1L << 16;
      metrics->y_scale     = 1L << 16;
      metrics->ascender    = bsize->y_ppem;
      metrics->descender   = 0;
      metrics->height      = bsize->height << 6;
      metrics->max_advance = bsize->x_ppem;
    }
  }

Referenced by BDF_Size_Select(), FNT_Size_Select(), FT_Select_Size(), and PCF_Size_Select().

FT_Select_Size()

FT_Select_Size	(	FT_Face	face,
		FT_Int	strike_index
	)

Definition at line 3202 of file ftobjs.c.

  {
    FT_Error         error = FT_Err_Ok;
    FT_Driver_Class  clazz;
 
 
    if ( !face || !FT_HAS_FIXED_SIZES( face ) )
      return FT_THROW( Invalid_Face_Handle );
 
    if ( strike_index < 0 || strike_index >= face->num_fixed_sizes )
      return FT_THROW( Invalid_Argument );
 
    clazz = face->driver->clazz;
 
    if ( clazz->select_size )
    {
      error = clazz->select_size( face->size, (FT_ULong)strike_index );
 
      FT_TRACE5(( "FT_Select_Size (%s driver):\n",
                  face->driver->root.clazz->module_name ));
    }
    else
    {
      FT_Select_Metrics( face, (FT_ULong)strike_index );
 
      FT_TRACE5(( "FT_Select_Size:\n" ));
    }
 
#ifdef FT_DEBUG_LEVEL_TRACE
    {
      FT_Size_Metrics*  metrics = &face->size->metrics;
 
 
      FT_TRACE5(( "  x scale: %ld (%f)\n",
                  metrics->x_scale, metrics->x_scale / 65536.0 ));
      FT_TRACE5(( "  y scale: %ld (%f)\n",
                  metrics->y_scale, metrics->y_scale / 65536.0 ));
      FT_TRACE5(( "  ascender: %f\n",    metrics->ascender / 64.0 ));
      FT_TRACE5(( "  descender: %f\n",   metrics->descender / 64.0 ));
      FT_TRACE5(( "  height: %f\n",      metrics->height / 64.0 ));
      FT_TRACE5(( "  max advance: %f\n", metrics->max_advance / 64.0 ));
      FT_TRACE5(( "  x ppem: %d\n",      metrics->x_ppem ));
      FT_TRACE5(( "  y ppem: %d\n",      metrics->y_ppem ));
    }
#endif
 
    return error;
  }

Referenced by FT_Request_Size(), and T42_Size_Select().

ft_service_list_lookup()

ft_service_list_lookup	(	FT_ServiceDesc	service_descriptors,
		const char *	service_id
	)

Definition at line 109 of file ftobjs.c.

  {
    FT_Pointer      result = NULL;
    FT_ServiceDesc  desc   = service_descriptors;
 
 
    if ( desc && service_id )
    {
      for ( ; desc->serv_id != NULL; desc++ )
      {
        if ( ft_strcmp( desc->serv_id, service_id ) == 0 )
        {
          result = (FT_Pointer)desc->serv_data;
          break;
        }
      }
    }
 
    return result;
  }

Referenced by af_get_interface(), bdf_driver_requester(), cff_get_interface(), cid_get_interface(), Get_Interface(), pcf_driver_requester(), pfr_get_service(), T42_Get_Interface(), tt_get_interface(), and winfnt_get_service().

FT_Set_Char_Size()

FT_Set_Char_Size	(	FT_Face	face,
		FT_F26Dot6	char_width,
		FT_F26Dot6	char_height,
		FT_UInt	horz_resolution,
		FT_UInt	vert_resolution
	)

Definition at line 3331 of file ftobjs.c.

  {
    FT_Size_RequestRec  req;
 
 
    /* check of `face' delayed to `FT_Request_Size' */
 
    if ( !char_width )
      char_width = char_height;
    else if ( !char_height )
      char_height = char_width;
 
    if ( !horz_resolution )
      horz_resolution = vert_resolution;
    else if ( !vert_resolution )
      vert_resolution = horz_resolution;
 
    if ( char_width  < 1 * 64 )
      char_width  = 1 * 64;
    if ( char_height < 1 * 64 )
      char_height = 1 * 64;
 
    if ( !horz_resolution )
      horz_resolution = vert_resolution = 72;
 
    req.type           = FT_SIZE_REQUEST_TYPE_NOMINAL;
    req.width          = char_width;
    req.height         = char_height;
    req.horiResolution = horz_resolution;
    req.vertResolution = vert_resolution;
 
    return FT_Request_Size( face, &req );
  }

Referenced by ftc_scaler_lookup_size().

FT_Set_Charmap()

FT_Set_Charmap	(	FT_Face	face,
		FT_CharMap	charmap
	)

Definition at line 3564 of file ftobjs.c.

  {
    FT_CharMap*  cur;
    FT_CharMap*  limit;
 
 
    if ( !face )
      return FT_THROW( Invalid_Face_Handle );
 
    cur = face->charmaps;
    if ( !cur || !charmap )
      return FT_THROW( Invalid_CharMap_Handle );
 
    limit = cur + face->num_charmaps;
 
    for ( ; cur < limit; cur++ )
    {
      if ( cur[0] == charmap                    &&
           FT_Get_CMap_Format ( charmap ) != 14 )
      {
        face->charmap = cur[0];
        return FT_Err_Ok;
      }
    }
 
    return FT_THROW( Invalid_Argument );
  }

Referenced by af_face_globals_compute_style_coverage(), af_latin_metrics_init(), FTC_CMapCache_Lookup(), GreGetCharWidthW(), NtGdiGetCharABCWidthsW(), T1_Read_PFM(), and TextIntUpdateSize().

ft_set_current_renderer()

static void ft_set_current_renderer ( FT_Library  library )

static

Definition at line 4384 of file ftobjs.c.

  {
    FT_Renderer  renderer;
 
 
    renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, 0 );
    library->cur_renderer = renderer;
  }

Referenced by ft_add_renderer(), and ft_remove_renderer().

FT_Set_Debug_Hook()

FT_Set_Debug_Hook	(	FT_Library	library,
		FT_UInt	hook_index,
		FT_DebugHook_Func	debug_hook
	)

Definition at line 5456 of file ftobjs.c.

  {
    if ( library && debug_hook &&
         hook_index <
           ( sizeof ( library->debug_hooks ) / sizeof ( void* ) ) )
      library->debug_hooks[hook_index] = debug_hook;
  }

FT_Set_Pixel_Sizes()

FT_Set_Pixel_Sizes	(	FT_Face	face,
		FT_UInt	pixel_width,
		FT_UInt	pixel_height
	)

Definition at line 3373 of file ftobjs.c.

  {
    FT_Size_RequestRec  req;
 
 
    /* check of `face' delayed to `FT_Request_Size' */
 
    if ( pixel_width == 0 )
      pixel_width = pixel_height;
    else if ( pixel_height == 0 )
      pixel_height = pixel_width;
 
    if ( pixel_width  < 1 )
      pixel_width  = 1;
    if ( pixel_height < 1 )
      pixel_height = 1;
 
    /* use `>=' to avoid potential compiler warning on 16bit platforms */
    if ( pixel_width >= 0xFFFFU )
      pixel_width = 0xFFFFU;
    if ( pixel_height >= 0xFFFFU )
      pixel_height = 0xFFFFU;
 
    req.type           = FT_SIZE_REQUEST_TYPE_NOMINAL;
    req.width          = (FT_Long)( pixel_width << 6 );
    req.height         = (FT_Long)( pixel_height << 6 );
    req.horiResolution = 0;
    req.vertResolution = 0;
 
    return FT_Request_Size( face, &req );
  }

Referenced by ftc_scaler_lookup_size().

FT_Set_Renderer()

FT_Set_Renderer	(	FT_Library	library,
		FT_Renderer	renderer,
		FT_UInt	num_params,
		FT_Parameter *	parameters
	)

Definition at line 4491 of file ftobjs.c.

  {
    FT_ListNode  node;
    FT_Error     error = FT_Err_Ok;
 
    FT_Renderer_SetModeFunc  set_mode;
 
 
    if ( !library )
    {
      error = FT_THROW( Invalid_Library_Handle );
      goto Exit;
    }
 
    if ( !renderer )
    {
      error = FT_THROW( Invalid_Argument );
      goto Exit;
    }
 
    if ( num_params > 0 && !parameters )
    {
      error = FT_THROW( Invalid_Argument );
      goto Exit;
    }
 
    node = FT_List_Find( &library->renderers, renderer );
    if ( !node )
    {
      error = FT_THROW( Invalid_Argument );
      goto Exit;
    }
 
    FT_List_Up( &library->renderers, node );
 
    if ( renderer->glyph_format == FT_GLYPH_FORMAT_OUTLINE )
      library->cur_renderer = renderer;
 
    set_mode = renderer->clazz->set_mode;
 
    for ( ; num_params > 0; num_params-- )
    {
      error = set_mode( renderer, parameters->tag, parameters->data );
      if ( error )
        break;
      parameters++;
    }
 
  Exit:
    return error;
  }

FT_Set_Transform()

FT_Set_Transform	(	FT_Face	face,
		FT_Matrix *	matrix,
		FT_Vector *	delta
	)

Definition at line 689 of file ftobjs.c.

  {
    FT_Face_Internal  internal;
 
 
    if ( !face )
      return;
 
    internal = face->internal;
 
    internal->transform_flags = 0;
 
    if ( !matrix )
    {
      internal->transform_matrix.xx = 0x10000L;
      internal->transform_matrix.xy = 0;
      internal->transform_matrix.yx = 0;
      internal->transform_matrix.yy = 0x10000L;
 
      matrix = &internal->transform_matrix;
    }
    else
      internal->transform_matrix = *matrix;
 
    /* set transform_flags bit flag 0 if `matrix' isn't the identity */
    if ( ( matrix->xy | matrix->yx ) ||
         matrix->xx != 0x10000L      ||
         matrix->yy != 0x10000L      )
      internal->transform_flags |= 1;
 
    if ( !delta )
    {
      internal->transform_delta.x = 0;
      internal->transform_delta.y = 0;
 
      delta = &internal->transform_delta;
    }
    else
      internal->transform_delta = *delta;
 
    /* set transform_flags bit flag 1 if `delta' isn't the null vector */
    if ( delta->x | delta->y )
      internal->transform_flags |= 2;
  }

Referenced by FontLink_Chain_FindGlyph(), ftGdiGetGlyphOutline(), ftGdiGetTextMetricsW(), GreGetCharWidthW(), IntExtTextOutW(), NtGdiGetCharABCWidthsW(), and TextIntGetTextExtentPoint().

FT_Sfnt_Table_Info()

FT_Sfnt_Table_Info	(	FT_Face	face,
		FT_UInt	table_index,
		FT_ULong *	tag,
		FT_ULong *	length
	)

Definition at line 4220 of file ftobjs.c.

  {
    FT_Service_SFNT_Table  service;
    FT_ULong               offset;
 
 
    /* test for valid `length' delayed to `service->table_info' */
 
    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->table_info( face, table_index, tag, &offset, length );
  }

FT_Stream_Free()

FT_Stream_Free	(	FT_Stream	stream,
		FT_Int	external
	)

Definition at line 257 of file ftobjs.c.

  {
    if ( stream )
    {
      FT_Memory  memory = stream->memory;
 
 
      FT_Stream_Close( stream );
 
      if ( !external )
        FT_FREE( stream );
    }
  }

Referenced by destroy_face(), FT_Attach_Stream(), ft_open_face_internal(), woff2_open_font(), and woff_open_font().

FT_Stream_New()

FT_Stream_New	(	FT_Library	library,
		const FT_Open_Args *	args,
		FT_Stream *	astream
	)

Definition at line 189 of file ftobjs.c.

  {
    FT_Error   error;
    FT_Memory  memory;
    FT_Stream  stream = NULL;
 
 
    *astream = NULL;
 
    if ( !library )
      return FT_THROW( Invalid_Library_Handle );
 
    if ( !args )
      return FT_THROW( Invalid_Argument );
 
    memory = library->memory;
 
    if ( FT_NEW( stream ) )
      goto Exit;
 
    stream->memory = memory;
 
    if ( args->flags & FT_OPEN_MEMORY )
    {
      /* create a memory-based stream */
      FT_Stream_OpenMemory( stream,
                            (const FT_Byte*)args->memory_base,
                            (FT_ULong)args->memory_size );
    }
 
#ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT
 
    else if ( args->flags & FT_OPEN_PATHNAME )
    {
      /* create a normal system stream */
      error = FT_Stream_Open( stream, args->pathname );
      stream->pathname.pointer = args->pathname;
    }
    else if ( ( args->flags & FT_OPEN_STREAM ) && args->stream )
    {
      /* use an existing, user-provided stream */
 
      /* in this case, we do not need to allocate a new stream object */
      /* since the caller is responsible for closing it himself       */
      FT_FREE( stream );
      stream = args->stream;
    }
 
#endif
 
    else
      error = FT_THROW( Invalid_Argument );
 
    if ( error )
      FT_FREE( stream );
    else
      stream->memory = memory;  /* just to be certain */
 
    *astream = stream;
 
  Exit:
    return error;
  }

Referenced by FT_Attach_Stream(), and ft_open_face_internal().

ft_synthesize_vertical_metrics()

ft_synthesize_vertical_metrics	(	FT_Glyph_Metrics *	metrics,
		FT_Pos	advance
	)

Definition at line 2997 of file ftobjs.c.

  {
    FT_Pos  height = metrics->height;
 
 
    /* compensate for glyph with bbox above/below the baseline */
    if ( metrics->horiBearingY < 0 )
    {
      if ( height < metrics->horiBearingY )
        height = metrics->horiBearingY;
    }
    else if ( metrics->horiBearingY > 0 )
      height -= metrics->horiBearingY;
 
    /* the factor 1.2 is a heuristical value */
    if ( !advance )
      advance = height * 12 / 10;
 
    metrics->vertBearingX = metrics->horiBearingX - metrics->horiAdvance / 2;
    metrics->vertBearingY = ( advance - height ) / 2;
    metrics->vertAdvance  = advance;
  }

Referenced by BDF_Glyph_Load(), cff_slot_load(), cid_slot_load_glyph(), FNT_Load_Glyph(), PCF_Glyph_Load(), and T1_Load_Glyph().

ft_validator_error()

ft_validator_error	(	FT_Validator	valid,
		FT_Error	error
	)

Definition at line 156 of file ftobjs.c.

  {
    /* since the cast below also disables the compiler's */
    /* type check, we introduce a dummy variable, which  */
    /* will be optimized away                            */
    volatile ft_jmp_buf* jump_buffer = &valid->jump_buffer;
 
 
    valid->error = error;
 
    /* throw away volatileness; use `jump_buffer' or the  */
    /* compiler may warn about an unused local variable   */
    ft_longjmp( *(ft_jmp_buf*) jump_buffer, 1 );
  }

ft_validator_init()

ft_validator_init	(	FT_Validator	valid,
		const FT_Byte *	base,
		const FT_Byte *	limit,
		FT_ValidationLevel	level
	)

Definition at line 133 of file ftobjs.c.

  {
    valid->base  = base;
    valid->limit = limit;
    valid->level = level;
    valid->error = FT_Err_Ok;
  }

Referenced by tt_face_build_cmaps().

ft_validator_run()

ft_validator_run

(

FT_Validator

valid

)

Definition at line 146 of file ftobjs.c.

  {
    /* This function doesn't work!  None should call it. */
    FT_UNUSED( valid );
 
    return -1;
  }

open_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  )

static

Definition at line 1368 of file ftobjs.c.

  {
    FT_Memory         memory;
    FT_Driver_Class   clazz;
    FT_Face           face     = NULL;
    FT_Face_Internal  internal = NULL;
 
    FT_Error          error, error2;
 
 
    clazz  = driver->clazz;
    memory = driver->root.memory;
 
    /* allocate the face object and perform basic initialization */
    if ( FT_ALLOC( face, clazz->face_object_size ) )
      goto Fail;
 
    face->driver = driver;
    face->memory = memory;
    face->stream = *astream;
 
    /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */
    if ( external_stream )
      face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM;
 
    if ( FT_NEW( internal ) )
      goto Fail;
 
    face->internal = internal;
 
#ifdef FT_CONFIG_OPTION_INCREMENTAL
    {
      int  i;
 
 
      face->internal->incremental_interface = NULL;
      for ( i = 0; i < num_params && !face->internal->incremental_interface;
            i++ )
        if ( params[i].tag == FT_PARAM_TAG_INCREMENTAL )
          face->internal->incremental_interface =
            (FT_Incremental_Interface)params[i].data;
    }
#endif
 
    face->internal->random_seed = -1;
 
    if ( clazz->init_face )
      error = clazz->init_face( *astream,
                                face,
                                (FT_Int)face_index,
                                num_params,
                                params );
    *astream = face->stream; /* Stream may have been changed. */
    if ( error )
      goto Fail;
 
    /* select Unicode charmap by default */
    error2 = find_unicode_charmap( face );
 
    /* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle */
    /* is returned.                                                      */
 
    /* no error should happen, but we want to play safe */
    if ( error2 && FT_ERR_NEQ( error2, Invalid_CharMap_Handle ) )
    {
      error = error2;
      goto Fail;
    }
 
    *aface = face;
 
  Fail:
    if ( error )
    {
      destroy_charmaps( face, memory );
      if ( clazz->done_face )
        clazz->done_face( face );
      FT_FREE( internal );
      FT_FREE( face );
      *aface = NULL;
    }
 
    return error;
  }

Referenced by ft_open_face_internal().