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* Correct lib name

git-svn-id: trunk@37866 -
michael 7 years ago
parent
commit
90679c0ce7
2 changed files with 553 additions and 0 deletions
  1. 1 0
      .gitattributes
  2. 552 0
      packages/fcl-image/src/libfreetype.inc

+ 1 - 0
.gitattributes

@@ -2511,6 +2511,7 @@ packages/fcl-image/src/fpwritexpm.pp svneol=native#text/plain
 packages/fcl-image/src/freetype.pp svneol=native#text/plain
 packages/fcl-image/src/freetypeh.pp svneol=native#text/plain
 packages/fcl-image/src/ftfont.pp svneol=native#text/plain
+packages/fcl-image/src/libfreetype.inc svneol=native#text/plain
 packages/fcl-image/src/pcxcomn.pas svneol=native#text/plain
 packages/fcl-image/src/pixtools.pp svneol=native#text/plain
 packages/fcl-image/src/pngcomn.pp svneol=native#text/plain

+ 552 - 0
packages/fcl-image/src/libfreetype.inc

@@ -0,0 +1,552 @@
+{%MainUnit freetypehdyn}
+
+Const
+
+{$packrecords c}
+
+// Windows
+{$ifdef windows}
+  FreeTypeDLL = 'freetype-6.dll';   // version 2.1.4
+  {$define ft_found_platform}
+{$endif}
+
+// Mac OS X
+{$ifdef darwin}
+  freetypedll = 'libfreetype.dylib'; // Doesn't seam to matter much.
+{$IFNDEF DYNAMIC}
+{$linklib freetype}  // This one is the important part,
+                     // but you also need to pass to fpc
+                     // the following command:
+                     // -k-L/usr/X11/lib
+                     // or another place where it can find
+                     // libfreetype.dylib
+{$ENDIF}
+{$define ft_found_platform}
+{$endif}
+
+// LINUX
+{$if defined(UNIX) and not defined(darwin)}
+  FreeTypeDLL = 'libfreetype.so';
+  {$define ft_found_platform}
+{$endif}
+// Other platforms
+{$ifndef ft_found_platform}
+  FreeTypeDLL = 'freetype';
+{$endif}
+
+type
+  FT_Encoding = array[0..3] of char;
+
+const
+  FT_FACE_FLAG_SCALABLE = 1 shl 0;
+  FT_FACE_FLAG_FIXED_SIZES = 1 shl 1;
+  FT_FACE_FLAG_FIXED_WIDTH = 1 shl 2;
+  FT_FACE_FLAG_SFNT = 1 shl 3;
+  FT_FACE_FLAG_HORIZONTAL = 1 shl 4;
+  FT_FACE_FLAG_VERTICAL = 1 shl 5;
+  FT_FACE_FLAG_KERNING = 1 shl 6;
+  FT_FACE_FLAG_FAST_GLYPHS = 1 shl 7;
+  FT_FACE_FLAG_MULTIPLE_MASTERS = 1 shl 8;
+  FT_FACE_FLAG_GLYPH_NAMES = 1 shl 9;
+  FT_FACE_FLAG_EXTERNAL_STREAM = 1 shl 10;
+
+  FT_STYLE_FLAG_ITALIC = 1 shl 0;
+  FT_STYLE_FLAG_BOLD = 1 shl 1;
+
+  FT_LOAD_DEFAULT =          $0000;
+  FT_LOAD_NO_SCALE =         $0001;
+  FT_LOAD_NO_HINTING =       $0002;
+  FT_LOAD_RENDER =           $0004;
+  FT_LOAD_NO_BITMAP =        $0008;
+  FT_LOAD_VERTICAL_LAYOUT =  $0010;
+  FT_LOAD_FORCE_AUTOHINT =   $0020;
+  FT_LOAD_CROP_BITMAP =      $0040;
+  FT_LOAD_PEDANTIC =         $0080;
+  FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH = $0200;
+  FT_LOAD_NO_RECURSE =       $0400;
+  FT_LOAD_IGNORE_TRANSFORM = $0800;
+  FT_LOAD_MONOCHROME =       $1000;
+  FT_LOAD_LINEAR_DESIGN =    $2000;
+
+  ft_glyph_format_none      = $00000000;
+  ft_glyph_format_composite = $636F6D70; //comp 099 111 109 112
+  ft_glyph_format_bitmap    = $62697473; //bits 098 105 116 115
+  ft_glyph_format_outline   = $6F75746C; //outl 111 117 116 108
+  ft_glyph_format_plotter   = $706C6F74; //plot 112 108 111 116
+
+  FT_ENCODING_MS_SYMBOL : FT_Encoding = 'symb';
+  FT_ENCODING_UNICODE : FT_Encoding = 'unic';
+  FT_ENCODING_MS_SJIS : FT_Encoding = 'sjis';
+  FT_ENCODING_MS_GB2312 : FT_Encoding = 'gb  ';
+  FT_ENCODING_MS_BIG5 : FT_Encoding = 'big5';
+  FT_ENCODING_MS_WANSUNG : FT_Encoding = 'wans';
+  FT_ENCODING_MS_JOHAB : FT_Encoding = 'joha';
+  FT_ENCODING_ADOBE_STANDARD : FT_Encoding = 'ADOB';
+  FT_ENCODING_ADOBE_EXPERT : FT_Encoding = 'ADBE';
+  FT_ENCODING_ADOBE_CUSTOM : FT_Encoding = 'ADBC';
+  FT_ENCODING_ADOBE_LATIN_1 : FT_Encoding = 'lat1';
+  FT_ENCODING_OLD_LATIN_2 : FT_Encoding = 'lat2';
+  FT_ENCODING_APPLE_ROMAN : FT_Encoding = 'armn';
+
+  ft_glyph_bbox_unscaled  = 0; //* return unscaled font units           */
+  ft_glyph_bbox_subpixels = 0; //* return unfitted 26.6 coordinates     */
+  ft_glyph_bbox_gridfit   = 1; //* return grid-fitted 26.6 coordinates  */
+  ft_glyph_bbox_truncate  = 2; //* return coordinates in integer pixels */
+  ft_glyph_bbox_pixels    = 3; //* return grid-fitted pixel coordinates */
+
+  FT_KERNING_DEFAULT  = 0;
+  FT_KERNING_UNFITTED = 1;
+  FT_KERNING_UNSCALED = 2;
+
+
+type
+
+  FT_Bool = boolean;
+  FT_FWord = smallint;
+  FT_UFWord = word;
+  FT_Char = char;
+  FT_Byte = byte;
+  FT_String = char;
+  FT_Short = smallint;
+  FT_UShort = word;
+  FT_Int = longint;
+  FT_UInt = longword;
+  {$if defined(cpu64) and not(defined(win64) and defined(cpux86_64))}
+  FT_Long = int64;
+  FT_ULong = qword;
+  FT_Pos = int64;
+  {$ELSE}
+  FT_Long = longint;
+  FT_ULong = longword;
+  FT_Pos = longint;
+  {$ENDIF}
+  FT_F2Dot14 = smallint;
+  FT_F26Dot6 = longint;
+  FT_Fixed = FT_Long;
+  FT_Error = longint;
+  FT_Pointer = pointer;
+  //FT_Offset = size_t;
+  //FT_PtrDist = size_t;
+
+  FT_Render_Mode = (FT_RENDER_MODE_NORMAL, FT_RENDER_MODE_LIGHT,
+      FT_RENDER_MODE_MONO, FT_RENDER_MODE_LCD, FT_RENDER_MODE_LCD_V,
+      FT_RENDER_MODE_MAX);
+
+  FT_UnitVector_ = record
+      x : FT_F2Dot14;
+      y : FT_F2Dot14;
+   end;
+  FT_UnitVector = FT_UnitVector_;
+
+  FT_Matrix = record
+      xx : FT_Fixed;
+      xy : FT_Fixed;
+      yx : FT_Fixed;
+      yy : FT_Fixed;
+   end;
+  PFT_Matrix = ^FT_Matrix;
+
+  FT_Data = record
+      pointer : ^FT_Byte;
+      length : FT_Int;
+   end;
+
+  FT_Generic_Finalizer = procedure (AnObject:pointer);cdecl;
+
+  FT_Generic = record
+      data : pointer;
+      finalizer : FT_Generic_Finalizer;
+   end;
+
+  FT_Glyph_Metrics = record
+    width : FT_Pos;
+    height : FT_Pos;
+    horiBearingX : FT_Pos;
+    horiBearingY : FT_Pos;
+    horiAdvance : FT_Pos;
+    vertBearingX : FT_Pos;
+    vertBearingY : FT_Pos;
+    vertAdvance : FT_Pos;
+  end;
+
+  FT_Bitmap_Size = record
+    height : FT_Short;
+    width : FT_Short;
+  end;
+  AFT_Bitmap_Size = array [0..1023] of FT_Bitmap_Size;
+  PFT_Bitmap_Size = ^AFT_Bitmap_Size;
+
+  FT_Vector = record
+    x : FT_Pos;
+    y : FT_Pos;
+  end;
+  PFT_Vector = ^FT_Vector;
+
+  FT_BBox = record
+    xMin, yMin : FT_Pos;
+    xMax, yMax : FT_Pos;
+  end;
+  PFT_BBox = ^FT_BBox;
+
+  FT_Bitmap = record
+    rows : integer;
+    width : integer;
+    pitch : integer;
+    buffer : pointer;
+    num_grays : shortint;
+    pixel_mode : char;
+    palette_mode : char;
+    palette : pointer;
+  end;
+
+  FT_Outline = record
+    n_contours,
+    n_points : smallint;
+    points : PFT_Vector;
+    tags : pchar;
+    contours : ^smallint;
+    flags : integer;
+  end;
+  PFT_Outline = ^FT_Outline;
+
+  FT_Outline_MoveToFunc = function(const to_: PFT_Vector; user: Pointer): integer;
+  FT_Outline_LineToFunc = function(const to_: PFT_Vector; user: Pointer): integer;
+  FT_Outline_ConicToFunc = function(const control, to_: PFT_Vector; user: Pointer): integer;
+  FT_Outline_CubicToFunc = function(const control1, control2, to_: PFT_Vector; user: Pointer): integer;
+
+  FT_Outline_Funcs = record
+    move_to: FT_Outline_MoveToFunc;
+    line_to: FT_Outline_LineToFunc;
+    conic_to: FT_Outline_ConicToFunc;
+    cubic_to: FT_Outline_CubicToFunc;
+    shift: integer;
+    delta: FT_Pos;
+  end;
+  PFT_Outline_Funcs = ^FT_Outline_Funcs;
+
+  FT_Size_Metrics = record
+    x_ppem : FT_UShort;
+    y_ppem : FT_UShort;
+    x_scale : FT_Fixed;
+    y_scale : FT_Fixed;
+    ascender : FT_Pos;
+    descender : FT_Pos;
+    height : FT_Pos;
+    max_advance : FT_Pos;
+  end;
+
+
+  PFT_Library = ^TFT_Library;
+  //PPFT_Library = ^PFT_Library;
+  PFT_Face = ^TFT_Face;
+  //PPFT_Face = ^PFT_Face;
+  PFT_Charmap = ^TFT_Charmap;
+  PPFT_Charmap = ^PFT_Charmap;
+  PFT_GlyphSlot = ^TFT_GlyphSlot;
+  PFT_Subglyph = ^TFT_Subglyph;
+  PFT_Size = ^TFT_Size;
+
+  PFT_Glyph = ^TFT_Glyph;
+  //PPFT_Glyph = ^PFT_Glyph;
+  PFT_BitmapGlyph = ^TFT_BitmapGlyph;
+  PFT_OutlineGlyph = ^TFT_OutlineGlyph;
+
+
+  TFT_Library = record
+  end;
+
+  TFT_Charmap = record
+    face : PFT_Face;
+    encoding : FT_Encoding;
+    platform_id, encoding_id : FT_UShort;
+  end;
+
+  TFT_Size = record
+    face : PFT_Face;
+    generic : FT_Generic;
+    metrics : FT_Size_Metrics;
+    //internal : FT_Size_Internal;
+  end;
+
+  TFT_Subglyph = record  // TODO
+  end;
+
+  TFT_GlyphSlot = record
+    alibrary : PFT_Library;
+    face : PFT_Face;
+    next : PFT_GlyphSlot;
+    flags : FT_UInt;
+    generic : FT_Generic;
+    metrics : FT_Glyph_Metrics;
+    linearHoriAdvance : FT_Fixed;
+    linearVertAdvance : FT_Fixed;
+    advance : FT_Vector;
+    format : longword;
+    bitmap : FT_Bitmap;
+    bitmap_left : FT_Int;
+    bitmap_top : FT_Int;
+    outline : FT_Outline;
+    num_subglyphs : FT_UInt;
+    subglyphs : PFT_SubGlyph;
+    control_data : pointer;
+    control_len : longint;
+    other : pointer;
+  end;
+
+  TFT_Face = record
+    num_faces : FT_Long;
+    face_index : FT_Long;
+    face_flags : FT_Long;
+    style_flags : FT_Long;
+    num_glyphs : FT_Long;
+    family_name : pchar;
+    style_name : pchar;
+    num_fixed_sizes : FT_Int;
+    available_sizes : PFT_Bitmap_Size;     // is array
+    num_charmaps : FT_Int;
+    charmaps : PPFT_CharMap;               // is array
+    generic : FT_Generic;
+    bbox : FT_BBox;
+    units_per_EM : FT_UShort;
+    ascender : FT_Short;
+    descender : FT_Short;
+    height : FT_Short;
+    max_advance_width : FT_Short;
+    max_advance_height : FT_Short;
+    underline_position : FT_Short;
+    underline_thickness : FT_Short;
+    glyph : PFT_GlyphSlot;
+    size : PFT_Size;
+    charmap : PFT_CharMap;
+  end;
+
+  TFT_Glyph = record
+    FTlibrary : PFT_Library;
+    clazz : pointer;
+    aFormat : longword;
+    advance : FT_Vector;
+  end;
+
+  TFT_BitmapGlyph = record
+    root : TFT_Glyph;
+    left, top : FT_Int;
+    bitmap : FT_Bitmap;
+  end;
+
+  TFT_OutlineGlyph = record
+    root : TFT_Glyph;
+    outline : FT_Outline;
+  end;
+
+// Macro
+function FT_IS_SCALABLE(face: PFT_Face): boolean;
+
+{$IFNDEF DYNAMIC}
+
+//Base Interface
+function FT_Done_Face(face: PFT_Face): integer; cdecl; external FreeTypeDLL Name 'FT_Done_Face';
+function FT_Done_FreeType(alibrary: PFT_Library): integer; cdecl; external FreeTypeDLL Name 'FT_Done_FreeType';
+function FT_Get_Char_Index(face: PFT_Face; charcode: FT_ULong): FT_UInt; cdecl; external FreeTypeDLL Name 'FT_Get_Char_Index';
+function FT_Get_Kerning(face: PFT_Face; left_glyph, right_glyph, kern_mode: FT_UInt; out akerning: FT_Vector): integer; cdecl; external FreeTypeDLL Name 'FT_Get_Kerning';
+function FT_Init_FreeType(var alibrary: PFT_Library): integer; cdecl; external FreeTypeDLL Name 'FT_Init_FreeType';
+function FT_Load_Char(face: PFT_Face; charcode: FT_ULong; load_flags: longint): integer; cdecl; external FreeTypeDLL Name 'FT_Load_Char';
+function FT_Load_Glyph(face: PFT_Face; glyph_index: FT_UInt; load_flags: longint): integer; cdecl; external FreeTypeDLL Name 'FT_Load_Glyph';
+function FT_New_Face(alibrary: PFT_Library; filepathname: PChar; face_index: integer; var aface: PFT_Face): integer; cdecl; external FreeTypeDLL Name 'FT_New_Face';
+function FT_Set_Char_Size(face: PFT_Face; char_width, char_height: FT_F26dot6; horz_res, vert_res: FT_UInt): integer; cdecl; external FreeTypeDLL Name 'FT_Set_Char_Size';
+function FT_Set_Pixel_Sizes(face: PFT_Face; pixel_width, pixel_height: FT_UInt): integer; cdecl; external FreeTypeDLL Name 'FT_Set_Pixel_Sizes';
+procedure FT_Set_Transform(face: PFT_Face; matrix: PFT_Matrix; delta: PFT_Vector); cdecl; external FreeTypeDLL Name 'FT_Set_Transform';
+
+//Outline Processing
+function FT_Outline_Decompose(outline: PFT_Outline; const func_interface: PFT_Outline_Funcs; user: Pointer): integer; cdecl; external FreeTypeDLL Name 'FT_Outline_Decompose';
+
+//FreeType Version
+procedure FT_Library_Version(alibrary: PFT_Library; var amajor, aminor, apatch: integer); cdecl; external FreeTypeDLL Name 'FT_Library_Version';
+
+//Glyph Management
+function FT_Get_Glyph(slot: PFT_GlyphSlot; out aglyph: PFT_Glyph): integer; cdecl; external FreeTypeDLL Name 'FT_Get_Glyph';
+function FT_Glyph_Copy(Source: PFT_Glyph; out target: PFT_Glyph): integer; cdecl; external FreeTypeDLL Name 'FT_Glyph_Copy';
+function FT_Glyph_To_Bitmap(var the_glyph: PFT_Glyph; render_mode: FT_Render_Mode; origin: PFT_Vector; Destroy: FT_Bool): integer; cdecl; external FreeTypeDLL Name 'FT_Glyph_To_Bitmap';
+function FT_Glyph_Transform(glyph: PFT_Glyph; matrix: PFT_Matrix; delta: PFT_Vector): integer; cdecl; external FreeTypeDLL Name 'FT_Glyph_Transform';
+procedure FT_Done_Glyph(glyph: PFT_Glyph); cdecl; external FreeTypeDLL Name 'FT_Done_Glyph';
+procedure FT_Glyph_Get_CBox(glyph: PFT_Glyph; bbox_mode: FT_UInt; var acbox: FT_BBox); cdecl; external FreeTypeDLL Name 'FT_Glyph_Get_CBox';
+
+{$ELSE}
+    //Base Interface
+Type
+  TFT_Done_Face = function(face: PFT_Face): integer; cdecl;
+  TFT_Done_FreeType = function(alibrary: PFT_Library): integer; cdecl;
+  TFT_Get_Char_Index = function(face: PFT_Face; charcode: FT_ULong): FT_UInt; cdecl;
+  TFT_Get_Kerning = function(face: PFT_Face; left_glyph, right_glyph, kern_mode: FT_UInt; out akerning: FT_Vector): integer; cdecl;
+  TFT_Init_FreeType = function(var alibrary: PFT_Library): integer; cdecl;
+  TFT_Load_Char = function(face: PFT_Face; charcode: FT_ULong; load_flags: longint): integer; cdecl;
+  TFT_Load_Glyph = function(face: PFT_Face; glyph_index: FT_UInt; load_flags: longint): integer; cdecl;
+  TFT_New_Face = function(alibrary: PFT_Library; filepathname: PChar; face_index: integer; var aface: PFT_Face): integer; cdecl;
+  TFT_Set_Char_Size = function(face: PFT_Face; char_width, char_height: FT_F26dot6; horz_res, vert_res: FT_UInt): integer; cdecl;
+  TFT_Set_Pixel_Sizes = function(face: PFT_Face; pixel_width, pixel_height: FT_UInt): integer; cdecl;
+  TFT_Set_Transform = procedure(face: PFT_Face; matrix: PFT_Matrix; delta: PFT_Vector); cdecl;
+    //Outline Processing
+  TFT_Outline_Decompose = function(outline: PFT_Outline; const func_interface: PFT_Outline_Funcs; user: Pointer): integer; cdecl;
+
+    //FreeType Version
+  TFT_Library_Version = procedure(alibrary: PFT_Library; var amajor, aminor, apatch: integer); cdecl;
+  //Glyph Management
+  TFT_Get_Glyph = function(slot: PFT_GlyphSlot; out aglyph: PFT_Glyph): integer; cdecl;
+  TFT_Glyph_Copy = function(Source: PFT_Glyph; out target: PFT_Glyph): integer; cdecl;
+  TFT_Glyph_To_Bitmap = function(var the_glyph: PFT_Glyph; render_mode: FT_Render_Mode; origin: PFT_Vector; Destroy: FT_Bool): integer; cdecl;
+  TFT_Glyph_Transform = function(glyph: PFT_Glyph; matrix: PFT_Matrix; delta: PFT_Vector): integer; cdecl;
+  TFT_Done_Glyph = procedure(glyph: PFT_Glyph); cdecl;
+  TFT_Glyph_Get_CBox = procedure(glyph: PFT_Glyph; bbox_mode: FT_UInt; var acbox: FT_BBox); cdecl;
+
+Var
+  FT_Done_Face : TFT_Done_Face;
+  FT_Done_FreeType : TFT_Done_FreeType;
+  FT_Get_Char_Index : TFT_Get_Char_Index;
+  FT_Get_Kerning : TFT_Get_Kerning;
+  FT_Init_FreeType : TFT_Init_FreeType;
+  FT_Load_Char : TFT_Load_Char;
+  FT_Load_Glyph : TFT_Load_Glyph;
+  FT_New_Face : TFT_New_Face;
+  FT_Set_Char_Size : TFT_Set_Char_Size;
+  FT_Set_Pixel_Sizes : TFT_Set_Pixel_Sizes;
+  FT_Set_Transform : TFT_Set_Transform;
+
+  //Outline Processing
+  FT_Outline_Decompose : TFT_Outline_Decompose;
+
+  //FreeType Version
+  FT_Library_Version : TFT_Library_Version;
+
+  //Glyph Management
+  FT_Get_Glyph : TFT_Get_Glyph;
+  FT_Glyph_Copy : TFT_Glyph_Copy;
+  FT_Glyph_To_Bitmap : TFT_Glyph_To_Bitmap;
+  FT_Glyph_Transform : TFT_Glyph_Transform;
+  FT_Done_Glyph : TFT_Done_Glyph;
+  FT_Glyph_Get_CBox : TFT_Glyph_Get_CBox;
+
+function InitializeFreetype(const LibraryName: UnicodeString = ''): Integer;
+function  InitializeFreetype(const LibraryName: AnsiString):integer;
+function TryInitializeFreetype(const LibraryName: Unicodestring = ''): Integer;
+function ReleaseFreetype: Integer;
+{$ENDIF}
+
+implementation
+
+function FT_IS_SCALABLE(face: PFT_Face): boolean;
+
+begin
+  Result := (face^.face_flags and FT_FACE_FLAG_SCALABLE) = 1;
+end;
+
+{$IFDEF DYNAMIC}
+var
+  FreetypeLibraryHandle: TLibHandle = NilHandle;
+  FreetypeDefaultLibrary: String = FreeTypeDLL;
+  FreetypeLoadedLibrary: UnicodeString = '';
+  RefCount: Integer = 0;
+
+resourcestring
+  SErrLoadFailed     = 'Can not load Freetype library "%s". Check your installation.';
+  SErrAlreadyLoaded  = 'Freetype interface already initialized from library %s.';
+
+procedure LoadAddresses(LibHandle: TLibHandle);
+
+begin
+  pointer(FT_Done_FreeType) := GetProcedureAddress(LibHandle,'FT_Done_FreeType');
+  pointer(FT_Get_Char_Index) := GetProcedureAddress(LibHandle,'FT_Get_Char_Index');
+  pointer(FT_Get_Kerning) := GetProcedureAddress(LibHandle,'FT_Get_Kerning');
+  pointer(FT_Init_FreeType) := GetProcedureAddress(LibHandle,'FT_Init_FreeType');
+  pointer(FT_Load_Char) := GetProcedureAddress(LibHandle,'FT_Load_Char');
+  pointer(FT_Load_Glyph) := GetProcedureAddress(LibHandle,'FT_Load_Glyph');
+  pointer(FT_New_Face) := GetProcedureAddress(LibHandle,'FT_New_Face');
+  pointer(FT_Set_Char_Size) := GetProcedureAddress(LibHandle,'FT_Set_Char_Size');
+  pointer(FT_Set_Pixel_Sizes) := GetProcedureAddress(LibHandle,'FT_Set_Pixel_Sizes');
+  pointer(FT_Set_Transform) := GetProcedureAddress(LibHandle,'FT_Set_Transform');
+  pointer(FT_Outline_Decompose) := GetProcedureAddress(LibHandle,'FT_Outline_Decompose');
+  pointer(FT_Library_Version) := GetProcedureAddress(LibHandle,'FT_Library_Version');
+  pointer(FT_Get_Glyph) := GetProcedureAddress(LibHandle,'FT_Get_Glyph');
+  pointer(FT_Glyph_Copy) := GetProcedureAddress(LibHandle,'FT_Glyph_Copy');
+  pointer(FT_Glyph_To_Bitmap) := GetProcedureAddress(LibHandle,'FT_Glyph_To_Bitmap');
+  pointer(FT_Glyph_Transform) := GetProcedureAddress(LibHandle,'FT_Glyph_Transform');
+  pointer(FT_Done_Glyph) := GetProcedureAddress(LibHandle,'FT_Done_Glyph');
+  pointer(FT_Glyph_Get_CBox) := GetProcedureAddress(LibHandle,'FT_Glyph_Get_CBox');
+end;
+
+procedure NilAllAddresses;
+
+begin
+  pointer(FT_Done_FreeType) := Nil;
+  pointer(FT_Get_Char_Index) := Nil;
+  pointer(FT_Get_Kerning) := Nil;
+  pointer(FT_Init_FreeType) := Nil;
+  pointer(FT_Load_Char) := Nil;
+  pointer(FT_Load_Glyph) := Nil;
+  pointer(FT_New_Face) := Nil;
+  pointer(FT_Set_Char_Size) := Nil;
+  pointer(FT_Set_Pixel_Sizes) := Nil;
+  pointer(FT_Set_Transform) := Nil;
+  pointer(FT_Outline_Decompose) := Nil;
+  pointer(FT_Library_Version) := Nil;
+  pointer(FT_Get_Glyph) := Nil;
+  pointer(FT_Glyph_Copy) := Nil;
+  pointer(FT_Glyph_To_Bitmap) := Nil;
+  pointer(FT_Glyph_Transform) := Nil;
+  pointer(FT_Done_Glyph) := Nil;
+  pointer(FT_Glyph_Get_CBox) := Nil;
+end;
+
+
+function TryInitializeFreetype(const LibraryName: UnicodeString): Integer;
+
+Var
+  N  : UnicodeString;
+begin
+  N:=LibraryName;
+  if (N='') then
+    N:=FreetypeDefaultLibrary;
+  result:=InterlockedIncrement(RefCount);
+  if result=1 then
+    begin
+    FreetypeLibraryHandle := LoadLibrary(N);
+    if (FreetypeLibraryHandle = NilHandle) then
+      begin
+      RefCount:=0;
+      Result:=0;
+      end;
+    FreetypeLoadedLibrary := N;
+    LoadAddresses(FreetypeLibraryHandle);
+    end;
+end;
+
+function  InitializeFreetype(const LibraryName: UnicodeString) :integer;
+
+begin
+  if (LibraryName<>'') and (FreetypeLoadedLibrary <> '') and (FreetypeLoadedLibrary <> LibraryName) then
+    Raise EInoutError.CreateFmt(SErrAlreadyLoaded,[FreetypeLoadedLibrary]);
+  Result:=TryInitializeFreetype(LibraryName);
+  if result=0 then
+    if LibraryName='' then
+      Raise EInOutError.CreateFmt(SErrLoadFailed,[FreetypeDefaultLibrary])
+    else
+      Raise EInOutError.CreateFmt(SErrLoadFailed,[LibraryName]);
+end;
+
+function InitializeFreetype(const LibraryName: AnsiString):integer;
+begin
+  result:=InitializeFreetype(UnicodeString(LibraryName));
+end;
+
+function ReleaseFreetype:integer;
+begin
+  if InterlockedDecrement(RefCount) <= 0 then
+    begin
+    if FreetypeLibraryHandle <> NilHandle then
+      UnloadLibrary(FreetypeLibraryHandle);
+    NilAllAddresses;
+    FreetypeLibraryHandle := NilHandle;
+    FreetypeLoadedLibrary := '';
+    RefCount := 0;
+    end;
+end;
+{$ENDIF}
+