dlls/winedib.drv/freetype.h

   1 /*
   2  * Truetype font functions
   3  *
   4  * Copyright 2008 Massimo Del Fedele
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19 #ifndef __WINE_DIBDRV_FREETYPE_H
  20 #define __WINE_DIBDRV__FREETYPE_H
  21
  22 /* freetype library for font support */
  23 #ifdef HAVE_FREETYPE
  24
  25 #include <ft2build.h>
  26 #include FT_FREETYPE_H
  27 #include FT_GLYPH_H
  28 #include FT_TRUETYPE_TABLES_H
  29 #include FT_SFNT_NAMES_H
  30 #include FT_TRUETYPE_IDS_H
  31 #include FT_BITMAP_H
  32
  33 /* freetype library handle */
  34 extern FT_Library DIBDRV_ftLibrary;
  35
  36 /******************************************************************************************/
  37 /*                                     FREETYPE STUFFS                                    */
  38 /* grabbed from winex11.drv/freetype.c                                                    */
  39 /******************************************************************************************/
  40
  41 /* This is basically a copy of FT_Bitmap_Size with an extra element added */
  42 typedef struct {
  43     FT_Short height;
  44     FT_Short width;
  45     FT_Pos size;
  46     FT_Pos x_ppem;
  47     FT_Pos y_ppem;
  48     FT_Short internal_leading;
  49 } Bitmap_Size;
  50
  51 /* FT_Bitmap_Size gained 3 new elements between FreeType 2.1.4 and 2.1.5
  52    So to let this compile on older versions of FreeType we'll define the
  53    new structure here. */
  54 typedef struct {
  55     FT_Short height, width;
  56     FT_Pos size, x_ppem, y_ppem;
  57 } My_FT_Bitmap_Size;
  58
  59 struct enum_data
  60 {
  61     ENUMLOGFONTEXW elf;
  62     NEWTEXTMETRICEXW ntm;
  63     DWORD type;
  64 };
  65
  66 typedef struct tagFace {
  67     struct list entry;
  68     WCHAR *StyleName;
  69     char *file;
  70     void *font_data_ptr;
  71     DWORD font_data_size;
  72     FT_Long face_index;
  73     FONTSIGNATURE fs;
  74     FONTSIGNATURE fs_links;
  75     DWORD ntmFlags;
  76     FT_Fixed font_version;
  77     BOOL scalable;
  78     Bitmap_Size size;     /* set if face is a bitmap */
  79     BOOL external; /* TRUE if we should manually add this font to the registry */
  80     struct tagFamily *family;
  81     /* Cached data for Enum */
  82     struct enum_data *cached_enum_data;
  83 } Face;
  84
  85 typedef struct tagFamily {
  86     struct list entry;
  87     const WCHAR *FamilyName;
  88     struct list faces;
  89 } Family;
  90
  91 typedef struct {
  92     GLYPHMETRICS gm;
  93     INT adv; /* These three hold to widths of the unrotated chars */
  94     INT lsb;
  95     INT bbx;
  96     BOOL init;
  97 } GM;
  98
  99 typedef struct {
 100     FLOAT eM11, eM12;
 101     FLOAT eM21, eM22;
 102 } FMAT2;
 103
 104 typedef struct {
 105     DWORD hash;
 106     LOGFONTW lf;
 107     FMAT2 matrix;
 108     BOOL can_use_bitmap;
 109 } FONT_DESC;
 110
 111 typedef struct tagHFONTLIST {
 112     struct list entry;
 113     HFONT hfont;
 114 } HFONTLIST;
 115
 116 typedef struct {
 117     struct list entry;
 118     Face *face;
 119     struct tagGdiFont *font;
 120 } CHILD_FONT;
 121
 122 typedef struct tagGdiFont {
 123     struct list entry;
 124     GM **gm;
 125     DWORD gmsize;
 126     struct list hfontlist;
 127     OUTLINETEXTMETRICW *potm;
 128     DWORD total_kern_pairs;
 129     KERNINGPAIR *kern_pairs;
 130     struct list child_fonts;
 131
 132     /* the following members can be accessed without locking, they are never modified after creation */
 133     FT_Face ft_face;
 134     struct font_mapping *mapping;
 135     LPWSTR name;
 136     int charset;
 137     int codepage;
 138     BOOL fake_italic;
 139     BOOL fake_bold;
 140     BYTE underline;
 141     BYTE strikeout;
 142     INT orientation;
 143     FONT_DESC font_desc;
 144     LONG aveWidth, ppem;
 145     double scale_y;
 146     SHORT yMax;
 147     SHORT yMin;
 148     DWORD ntmFlags;
 149     FONTSIGNATURE fs;
 150     struct tagGdiFont *base_font;
 151     VOID *GSUB_Table;
 152     DWORD cache_num;
 153 } GdiFont;
 154
 155 /* initialize freetype library */
 156 BOOL _DIBDRV_FreeType_Init(void);
 157
 158 /* terminates freetype library */
 159 void _DIBDRV_FreeType_Terminate(void);
 160
 161 #define MAKE_FUNCPTR(f) extern typeof(f) * p##f;
 162 MAKE_FUNCPTR(FT_Done_Face)
 163 MAKE_FUNCPTR(FT_Done_FreeType)
 164 MAKE_FUNCPTR(FT_Get_Char_Index)
 165 MAKE_FUNCPTR(FT_Get_Glyph_Name)
 166 MAKE_FUNCPTR(FT_Get_Sfnt_Name)
 167 MAKE_FUNCPTR(FT_Get_Sfnt_Name_Count)
 168 MAKE_FUNCPTR(FT_Get_Sfnt_Table)
 169 MAKE_FUNCPTR(FT_Init_FreeType)
 170 MAKE_FUNCPTR(FT_Load_Glyph)
 171 MAKE_FUNCPTR(FT_Load_Char)
 172 MAKE_FUNCPTR(FT_Get_Glyph)
 173 MAKE_FUNCPTR(FT_Glyph_Copy)
 174 MAKE_FUNCPTR(FT_Glyph_To_Bitmap)
 175 MAKE_FUNCPTR(FT_Done_Glyph)
 176 MAKE_FUNCPTR(FT_New_Face)
 177 MAKE_FUNCPTR(FT_Set_Charmap)
 178 MAKE_FUNCPTR(FT_Set_Char_Size)
 179 MAKE_FUNCPTR(FT_Set_Pixel_Sizes)
 180 MAKE_FUNCPTR(FT_Get_First_Char)
 181 MAKE_FUNCPTR(FT_Render_Glyph)
 182 MAKE_FUNCPTR(FT_Glyph_Transform)
 183 MAKE_FUNCPTR(FT_Bitmap_New)
 184 MAKE_FUNCPTR(FT_Bitmap_Done)
 185 MAKE_FUNCPTR(FT_Bitmap_Convert)
 186 #undef MAKE_FUNCPTR
 187
 188 #endif /* HAVE_FREETYPE */
 189
 190 #endif