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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 682 insertions, 0 deletions

diff --git a/src/3rdparty/freetype/src/cff/cffdrivr.c b/src/3rdparty/freetype/src/cff/cffdrivr.c
new file mode 100644
index 0000000000..3dd86f2aa8
--- /dev/null
+++ b/src/3rdparty/freetype/src/cff/cffdrivr.c
@@ -0,0 +1,682 @@
+/***************************************************************************/
+/*                                                                         */
+/*  cffdrivr.c                                                             */
+/*                                                                         */
+/*    OpenType font driver implementation (body).                          */
+/*                                                                         */
+/*  Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_SFNT_H
+#include FT_TRUETYPE_IDS_H
+#include FT_SERVICE_CID_H
+#include FT_SERVICE_POSTSCRIPT_CMAPS_H
+#include FT_SERVICE_POSTSCRIPT_INFO_H
+#include FT_SERVICE_POSTSCRIPT_NAME_H
+#include FT_SERVICE_TT_CMAP_H
+
+#include "cffdrivr.h"
+#include "cffgload.h"
+#include "cffload.h"
+#include "cffcmap.h"
+
+#include "cfferrs.h"
+
+#include FT_SERVICE_XFREE86_NAME_H
+#include FT_SERVICE_GLYPH_DICT_H
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_cffdriver
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****                                                                 ****/
+  /****                          F A C E S                              ****/
+  /****                                                                 ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+#undef  PAIR_TAG
+#define PAIR_TAG( left, right )  ( ( (FT_ULong)left << 16 ) | \
+                                     (FT_ULong)right        )
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    cff_get_kerning                                                    */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    A driver method used to return the kerning vector between two      */
+  /*    glyphs of the same face.                                           */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    face        :: A handle to the source face object.                 */
+  /*                                                                       */
+  /*    left_glyph  :: The index of the left glyph in the kern pair.       */
+  /*                                                                       */
+  /*    right_glyph :: The index of the right glyph in the kern pair.      */
+  /*                                                                       */
+  /* <Output>                                                              */
+  /*    kerning     :: The kerning vector.  This is in font units for      */
+  /*                   scalable formats, and in pixels for fixed-sizes     */
+  /*                   formats.                                            */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means success.                             */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    Only horizontal layouts (left-to-right & right-to-left) are        */
+  /*    supported by this function.  Other layouts, or more sophisticated  */
+  /*    kernings, are out of scope of this method (the basic driver        */
+  /*    interface is meant to be simple).                                  */
+  /*                                                                       */
+  /*    They can be implemented by format-specific interfaces.             */
+  /*                                                                       */
+  FT_CALLBACK_DEF( FT_Error )
+  cff_get_kerning( FT_Face     ttface,          /* TT_Face */
+                   FT_UInt     left_glyph,
+                   FT_UInt     right_glyph,
+                   FT_Vector*  kerning )
+  {
+    TT_Face       face = (TT_Face)ttface;
+    SFNT_Service  sfnt = (SFNT_Service)face->sfnt;
+
+
+    kerning->x = 0;
+    kerning->y = 0;
+
+    if ( sfnt )
+      kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph );
+
+    return CFF_Err_Ok;
+  }
+
+
+#undef PAIR_TAG
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    Load_Glyph                                                         */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    A driver method used to load a glyph within a given glyph slot.    */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    slot        :: A handle to the target slot object where the glyph  */
+  /*                   will be loaded.                                     */
+  /*                                                                       */
+  /*    size        :: A handle to the source face size at which the glyph */
+  /*                   must be scaled, loaded, etc.                        */
+  /*                                                                       */
+  /*    glyph_index :: The index of the glyph in the font file.            */
+  /*                                                                       */
+  /*    load_flags  :: A flag indicating what to load for this glyph.  The */
+  /*                   FT_LOAD_??? constants can be used to control the    */
+  /*                   glyph loading process (e.g., whether the outline    */
+  /*                   should be scaled, whether to load bitmaps or not,   */
+  /*                   whether to hint the outline, etc).                  */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means success.                             */
+  /*                                                                       */
+  FT_CALLBACK_DEF( FT_Error )
+  Load_Glyph( FT_GlyphSlot  cffslot,        /* CFF_GlyphSlot */
+              FT_Size       cffsize,        /* CFF_Size      */
+              FT_UInt       glyph_index,
+              FT_Int32      load_flags )
+  {
+    FT_Error       error;
+    CFF_GlyphSlot  slot = (CFF_GlyphSlot)cffslot;
+    CFF_Size       size = (CFF_Size)cffsize;
+
+
+    if ( !slot )
+      return CFF_Err_Invalid_Slot_Handle;
+
+    /* check whether we want a scaled outline or bitmap */
+    if ( !size )
+      load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
+
+    /* reset the size object if necessary */
+    if ( load_flags & FT_LOAD_NO_SCALE )
+      size = NULL;
+
+    if ( size )
+    {
+      /* these two objects must have the same parent */
+      if ( cffsize->face != cffslot->face )
+        return CFF_Err_Invalid_Face_Handle;
+    }
+
+    /* now load the glyph outline if necessary */
+    error = cff_slot_load( slot, size, glyph_index, load_flags );
+
+    /* force drop-out mode to 2 - irrelevant now */
+    /* slot->outline.dropout_mode = 2; */
+
+    return error;
+  }
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  cff_get_advances( FT_Face    face,
+                    FT_UInt    start,
+                    FT_UInt    count,
+                    FT_Int32   flags,
+                    FT_Fixed*  advances )
+  {
+    FT_UInt       nn;
+    FT_Error      error = CFF_Err_Ok;
+    FT_GlyphSlot  slot  = face->glyph;
+
+
+    flags |= FT_LOAD_ADVANCE_ONLY;
+
+    for ( nn = 0; nn < count; nn++ )
+    {
+      error = Load_Glyph( slot, face->size, start + nn, flags );
+      if ( error )
+        break;
+
+      advances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT )
+                     ? slot->linearVertAdvance
+                     : slot->linearHoriAdvance;
+    }
+
+    return error;
+  }
+
+
+  /*
+   *  GLYPH DICT SERVICE
+   *
+   */
+
+  static FT_Error
+  cff_get_glyph_name( CFF_Face    face,
+                      FT_UInt     glyph_index,
+                      FT_Pointer  buffer,
+                      FT_UInt     buffer_max )
+  {
+    CFF_Font            font   = (CFF_Font)face->extra.data;
+    FT_Memory           memory = FT_FACE_MEMORY( face );
+    FT_String*          gname;
+    FT_UShort           sid;
+    FT_Service_PsCMaps  psnames;
+    FT_Error            error;
+
+
+    FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
+    if ( !psnames )
+    {
+      FT_ERROR(( "cff_get_glyph_name:" ));
+      FT_ERROR(( " cannot get glyph name from CFF & CEF fonts\n" ));
+      FT_ERROR(( "                   " ));
+      FT_ERROR(( " without the `PSNames' module\n" ));
+      error = CFF_Err_Unknown_File_Format;
+      goto Exit;
+    }
+
+    /* first, locate the sid in the charset table */
+    sid = font->charset.sids[glyph_index];
+
+    /* now, lookup the name itself */
+    gname = cff_index_get_sid_string( &font->string_index, sid, psnames );
+
+    if ( gname )
+      FT_STRCPYN( buffer, gname, buffer_max );
+
+    FT_FREE( gname );
+    error = CFF_Err_Ok;
+
+  Exit:
+    return error;
+  }
+
+
+  static FT_UInt
+  cff_get_name_index( CFF_Face    face,
+                      FT_String*  glyph_name )
+  {
+    CFF_Font            cff;
+    CFF_Charset         charset;
+    FT_Service_PsCMaps  psnames;
+    FT_Memory           memory = FT_FACE_MEMORY( face );
+    FT_String*          name;
+    FT_UShort           sid;
+    FT_UInt             i;
+    FT_Int              result;
+
+
+    cff     = (CFF_FontRec *)face->extra.data;
+    charset = &cff->charset;
+
+    FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
+    if ( !psnames )
+      return 0;
+
+    for ( i = 0; i < cff->num_glyphs; i++ )
+    {
+      sid = charset->sids[i];
+
+      if ( sid > 390 )
+        name = cff_index_get_name( &cff->string_index, sid - 391 );
+      else
+        name = (FT_String *)psnames->adobe_std_strings( sid );
+
+      if ( !name )
+        continue;
+
+      result = ft_strcmp( glyph_name, name );
+
+      if ( sid > 390 )
+        FT_FREE( name );
+
+      if ( !result )
+        return i;
+    }
+
+    return 0;
+  }
+
+
+  static const FT_Service_GlyphDictRec  cff_service_glyph_dict =
+  {
+    (FT_GlyphDict_GetNameFunc)  cff_get_glyph_name,
+    (FT_GlyphDict_NameIndexFunc)cff_get_name_index,
+  };
+
+
+  /*
+   *  POSTSCRIPT INFO SERVICE
+   *
+   */
+
+  static FT_Int
+  cff_ps_has_glyph_names( FT_Face  face )
+  {
+    return ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) > 0;
+  }
+
+
+  static FT_Error
+  cff_ps_get_font_info( CFF_Face         face,
+                        PS_FontInfoRec*  afont_info )
+  {
+    CFF_Font  cff   = (CFF_Font)face->extra.data;
+    FT_Error  error = FT_Err_Ok;
+
+
+    if ( cff && cff->font_info == NULL )
+    {
+      CFF_FontRecDict     dict    = &cff->top_font.font_dict;
+      PS_FontInfoRec     *font_info;
+      FT_Memory           memory  = face->root.memory;
+      FT_Service_PsCMaps  psnames = (FT_Service_PsCMaps)cff->psnames;
+
+
+      if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) )
+        goto Fail;
+
+      font_info->version     = cff_index_get_sid_string( &cff->string_index,
+                                                         dict->version,
+                                                         psnames );
+      font_info->notice      = cff_index_get_sid_string( &cff->string_index,
+                                                         dict->notice,
+                                                         psnames );
+      font_info->full_name   = cff_index_get_sid_string( &cff->string_index,
+                                                         dict->full_name,
+                                                         psnames );
+      font_info->family_name = cff_index_get_sid_string( &cff->string_index,
+                                                         dict->family_name,
+                                                         psnames );
+      font_info->weight      = cff_index_get_sid_string( &cff->string_index,
+                                                         dict->weight,
+                                                         psnames );
+      font_info->italic_angle        = dict->italic_angle;
+      font_info->is_fixed_pitch      = dict->is_fixed_pitch;
+      font_info->underline_position  = (FT_Short)dict->underline_position;
+      font_info->underline_thickness = (FT_Short)dict->underline_thickness;
+
+      cff->font_info = font_info;
+    }
+
+    if ( cff )
+      *afont_info = *cff->font_info;
+
+  Fail:
+    return error;
+  }
+
+
+  static const FT_Service_PsInfoRec  cff_service_ps_info =
+  {
+    (PS_GetFontInfoFunc)   cff_ps_get_font_info,
+    (PS_GetFontExtraFunc)  NULL,
+    (PS_HasGlyphNamesFunc) cff_ps_has_glyph_names,
+    (PS_GetFontPrivateFunc)NULL         /* unsupported with CFF fonts */
+  };
+
+
+  /*
+   *  POSTSCRIPT NAME SERVICE
+   *
+   */
+
+  static const char*
+  cff_get_ps_name( CFF_Face  face )
+  {
+    CFF_Font  cff = (CFF_Font)face->extra.data;
+
+
+    return (const char*)cff->font_name;
+  }
+
+
+  static const FT_Service_PsFontNameRec  cff_service_ps_name =
+  {
+    (FT_PsName_GetFunc)cff_get_ps_name
+  };
+
+
+  /*
+   * TT CMAP INFO
+   *
+   * If the charmap is a synthetic Unicode encoding cmap or
+   * a Type 1 standard (or expert) encoding cmap, hide TT CMAP INFO
+   * service defined in SFNT module.
+   *
+   * Otherwise call the service function in the sfnt module.
+   *
+   */
+  static FT_Error
+  cff_get_cmap_info( FT_CharMap    charmap,
+                     TT_CMapInfo  *cmap_info )
+  {
+    FT_CMap   cmap  = FT_CMAP( charmap );
+    FT_Error  error = CFF_Err_Ok;
+
+
+    cmap_info->language = 0;
+    cmap_info->format   = 0;
+
+    if ( cmap->clazz != &cff_cmap_encoding_class_rec &&
+         cmap->clazz != &cff_cmap_unicode_class_rec  )
+    {
+      FT_Face             face    = FT_CMAP_FACE( cmap );
+      FT_Library          library = FT_FACE_LIBRARY( face );
+      FT_Module           sfnt    = FT_Get_Module( library, "sfnt" );
+      FT_Service_TTCMaps  service =
+        (FT_Service_TTCMaps)ft_module_get_service( sfnt,
+                                                   FT_SERVICE_ID_TT_CMAP );
+
+
+      if ( service && service->get_cmap_info )
+        error = service->get_cmap_info( charmap, cmap_info );
+    }
+
+    return error;
+  }
+
+
+  static const FT_Service_TTCMapsRec  cff_service_get_cmap_info =
+  {
+    (TT_CMap_Info_GetFunc)cff_get_cmap_info
+  };
+
+
+  /*
+   *  CID INFO SERVICE
+   *
+   */
+  static FT_Error
+  cff_get_ros( CFF_Face      face,
+               const char*  *registry,
+               const char*  *ordering,
+               FT_Int       *supplement )
+  {
+    FT_Error  error = CFF_Err_Ok;
+    CFF_Font  cff   = (CFF_Font)face->extra.data;
+
+
+    if ( cff )
+    {
+      CFF_FontRecDict     dict    = &cff->top_font.font_dict;
+      FT_Service_PsCMaps  psnames = (FT_Service_PsCMaps)cff->psnames;
+
+
+      if ( dict->cid_registry == 0xFFFFU )
+      {
+        error = CFF_Err_Invalid_Argument;
+        goto Fail;
+      }
+
+      if ( registry )
+      {
+        if ( cff->registry == NULL )
+          cff->registry = cff_index_get_sid_string( &cff->string_index,
+                                                    dict->cid_registry,
+                                                    psnames );
+        *registry = cff->registry;
+      }
+      
+      if ( ordering )
+      {
+        if ( cff->ordering == NULL )
+          cff->ordering = cff_index_get_sid_string( &cff->string_index,
+                                                    dict->cid_ordering,
+                                                    psnames );
+        *ordering = cff->ordering;
+      }
+
+      if ( supplement )
+        *supplement = dict->cid_supplement;
+    }
+      
+  Fail:
+    return error;
+  }
+
+
+  static FT_Error
+  cff_get_is_cid( CFF_Face  face,
+                  FT_Bool  *is_cid )
+  {
+    FT_Error  error = CFF_Err_Ok;
+    CFF_Font  cff   = (CFF_Font)face->extra.data;
+
+
+    *is_cid = 0;
+
+    if ( cff )
+    {
+      CFF_FontRecDict  dict = &cff->top_font.font_dict;
+
+
+      if ( dict->cid_registry != 0xFFFFU )
+        *is_cid = 1;
+    }
+
+    return error;
+  }
+
+
+  static FT_Error
+  cff_get_cid_from_glyph_index( CFF_Face  face,
+                                FT_UInt   glyph_index,
+                                FT_UInt  *cid )
+  {
+    FT_Error  error = CFF_Err_Ok;
+    CFF_Font  cff;
+
+
+    cff = (CFF_Font)face->extra.data;
+
+    if ( cff )
+    {
+      FT_UInt          c;
+      CFF_FontRecDict  dict = &cff->top_font.font_dict;
+
+
+      if ( dict->cid_registry == 0xFFFFU )
+      {
+        error = CFF_Err_Invalid_Argument;
+        goto Fail;
+      }
+
+      if ( glyph_index > cff->num_glyphs )
+      {
+        error = CFF_Err_Invalid_Argument;
+        goto Fail;
+      }
+
+      c = cff->charset.sids[glyph_index];
+
+      if ( cid )
+        *cid = c;
+    }
+
+  Fail:
+    return error;
+  }
+
+
+  static const FT_Service_CIDRec  cff_service_cid_info =
+  {
+    (FT_CID_GetRegistryOrderingSupplementFunc)cff_get_ros,
+    (FT_CID_GetIsInternallyCIDKeyedFunc)      cff_get_is_cid,
+    (FT_CID_GetCIDFromGlyphIndexFunc)         cff_get_cid_from_glyph_index
+  };
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****                                                                 ****/
+  /****                D R I V E R  I N T E R F A C E                   ****/
+  /****                                                                 ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  static const FT_ServiceDescRec  cff_services[] =
+  {
+    { FT_SERVICE_ID_XF86_NAME,            FT_XF86_FORMAT_CFF },
+    { FT_SERVICE_ID_POSTSCRIPT_INFO,      &cff_service_ps_info },
+    { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name },
+#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES
+    { FT_SERVICE_ID_GLYPH_DICT,           &cff_service_glyph_dict },
+#endif
+    { FT_SERVICE_ID_TT_CMAP,              &cff_service_get_cmap_info },
+    { FT_SERVICE_ID_CID,                  &cff_service_cid_info },
+    { NULL, NULL }
+  };
+
+
+  FT_CALLBACK_DEF( FT_Module_Interface )
+  cff_get_interface( FT_Module    driver,       /* CFF_Driver */
+                     const char*  module_interface )
+  {
+    FT_Module            sfnt;
+    FT_Module_Interface  result;
+
+
+    result = ft_service_list_lookup( cff_services, module_interface );
+    if ( result != NULL )
+      return  result;
+
+    /* we pass our request to the `sfnt' module */
+    sfnt = FT_Get_Module( driver->library, "sfnt" );
+
+    return sfnt ? sfnt->clazz->get_interface( sfnt, module_interface ) : 0;
+  }
+
+
+  /* The FT_DriverInterface structure is defined in ftdriver.h. */
+
+  FT_CALLBACK_TABLE_DEF
+  const FT_Driver_ClassRec  cff_driver_class =
+  {
+    /* begin with the FT_Module_Class fields */
+    {
+      FT_MODULE_FONT_DRIVER       |
+      FT_MODULE_DRIVER_SCALABLE   |
+      FT_MODULE_DRIVER_HAS_HINTER,
+
+      sizeof( CFF_DriverRec ),
+      "cff",
+      0x10000L,
+      0x20000L,
+
+      0,   /* module-specific interface */
+
+      cff_driver_init,
+      cff_driver_done,
+      cff_get_interface,
+    },
+
+    /* now the specific driver fields */
+    sizeof( TT_FaceRec ),
+    sizeof( CFF_SizeRec ),
+    sizeof( CFF_GlyphSlotRec ),
+
+    cff_face_init,
+    cff_face_done,
+    cff_size_init,
+    cff_size_done,
+    cff_slot_init,
+    cff_slot_done,
+
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+    ft_stub_set_char_sizes,
+    ft_stub_set_pixel_sizes,
+#endif
+
+    Load_Glyph,
+
+    cff_get_kerning,
+    0,                      /* FT_Face_AttachFunc      */
+    cff_get_advances,       /* FT_Face_GetAdvancesFunc */
+
+    cff_size_request,
+
+#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
+    cff_size_select
+#else
+    0                       /* FT_Size_SelectFunc      */
+#endif
+  };
+
+
+/* END */