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
  32 /* freetype library handle */
  33 extern FT_Library DIBDRV_ftLibrary;
  34
  35 /******************************************************************************************/
  36 /*                                     FREETYPE STUFFS                                    */
  37 /* grabbed from winex11.drv/freetype.c                                                    */
  38 /******************************************************************************************/
  39
  40 /* This is basically a copy of FT_Bitmap_Size with an extra element added */
  41 typedef struct {
  42     FT_Short height;
  43     FT_Short width;
  44     FT_Pos size;
  45     FT_Pos x_ppem;
  46     FT_Pos y_ppem;
  47     FT_Short internal_leading;
  48 } Bitmap_Size;
  49
  50 /* FT_Bitmap_Size gained 3 new elements between FreeType 2.1.4 and 2.1.5
  51    So to let this compile on older versions of FreeType we'll define the
  52    new structure here. */
  53 typedef struct {
  54     FT_Short height, width;
  55     FT_Pos size, x_ppem, y_ppem;
  56 } My_FT_Bitmap_Size;
  57
  58 struct enum_data
  59 {
  60     ENUMLOGFONTEXW elf;
  61     NEWTEXTMETRICEXW ntm;
  62     DWORD type;
  63 };
  64
  65 typedef struct tagFace {
  66     struct list entry;
  67     WCHAR *StyleName;
  68     char *file;
  69     void *font_data_ptr;
  70     DWORD font_data_size;
  71     FT_Long face_index;
  72     FONTSIGNATURE fs;
  73     FONTSIGNATURE fs_links;
  74     DWORD ntmFlags;
  75     FT_Fixed font_version;
  76     BOOL scalable;
  77     Bitmap_Size size;     /* set if face is a bitmap */
  78     BOOL external; /* TRUE if we should manually add this font to the registry */
  79     struct tagFamily *family;
  80     /* Cached data for Enum */
  81     struct enum_data *cached_enum_data;
  82 } Face;
  83
  84 typedef struct tagFamily {
  85     struct list entry;
  86     const WCHAR *FamilyName;
  87     struct list faces;
  88 } Family;
  89
  90 typedef struct {
  91     GLYPHMETRICS gm;
  92     INT adv; /* These three hold to widths of the unrotated chars */
  93     INT lsb;
  94     INT bbx;
  95     BOOL init;
  96 } GM;
  97
  98 typedef struct {
  99     FLOAT eM11, eM12;
 100     FLOAT eM21, eM22;
 101 } FMAT2;
 102
 103 typedef struct {
 104     DWORD hash;
 105     LOGFONTW lf;
 106     FMAT2 matrix;
 107     BOOL can_use_bitmap;
 108 } FONT_DESC;
 109
 110 typedef struct tagHFONTLIST {
 111     struct list entry;
 112     HFONT hfont;
 113 } HFONTLIST;
 114
 115 typedef struct {
 116     struct list entry;
 117     Face *face;
 118     struct tagGdiFont *font;
 119 } CHILD_FONT;
 120
 121 typedef struct tagGdiFont {
 122     struct list entry;
 123     GM **gm;
 124     DWORD gmsize;
 125     struct list hfontlist;
 126     OUTLINETEXTMETRICW *potm;
 127     DWORD total_kern_pairs;
 128     KERNINGPAIR *kern_pairs;
 129     struct list child_fonts;
 130
 131     /* the following members can be accessed without locking, they are never modified after creation */
 132     FT_Face ft_face;
 133     struct font_mapping *mapping;
 134     LPWSTR name;
 135     int charset;
 136     int codepage;
 137     BOOL fake_italic;
 138     BOOL fake_bold;
 139     BYTE underline;
 140     BYTE strikeout;
 141     INT orientation;
 142     FONT_DESC font_desc;
 143     LONG aveWidth, ppem;
 144     double scale_y;
 145     SHORT yMax;
 146     SHORT yMin;
 147     DWORD ntmFlags;
 148     FONTSIGNATURE fs;
 149     struct tagGdiFont *base_font;
 150     VOID *GSUB_Table;
 151     DWORD cache_num;
 152 } GdiFont;
 153
 154 /* initialize freetype library */
 155 BOOL _DIBDRV_FreeType_Init(void);
 156
 157 /* terminates freetype library */
 158 void _DIBDRV_FreeType_Terminate(void);
 159
 160 #define MAKE_FUNCPTR(f) extern typeof(f) * p##f;
 161 MAKE_FUNCPTR(FT_Done_Face)
 162 MAKE_FUNCPTR(FT_Done_FreeType)
 163 MAKE_FUNCPTR(FT_Get_Char_Index)
 164 MAKE_FUNCPTR(FT_Get_Glyph_Name)
 165 MAKE_FUNCPTR(FT_Get_Sfnt_Name)
 166 MAKE_FUNCPTR(FT_Get_Sfnt_Name_Count)
 167 MAKE_FUNCPTR(FT_Get_Sfnt_Table)
 168 MAKE_FUNCPTR(FT_Init_FreeType)
 169 MAKE_FUNCPTR(FT_Load_Glyph)
 170 MAKE_FUNCPTR(FT_Load_Char)
 171 MAKE_FUNCPTR(FT_Get_Glyph)
 172 MAKE_FUNCPTR(FT_Glyph_Copy)
 173 MAKE_FUNCPTR(FT_Glyph_To_Bitmap)
 174 MAKE_FUNCPTR(FT_Done_Glyph)
 175 MAKE_FUNCPTR(FT_New_Face)
 176 MAKE_FUNCPTR(FT_Set_Charmap)
 177 MAKE_FUNCPTR(FT_Set_Char_Size)
 178 MAKE_FUNCPTR(FT_Set_Pixel_Sizes)
 179 MAKE_FUNCPTR(FT_Get_First_Char)
 180 MAKE_FUNCPTR(FT_Render_Glyph)
 181 MAKE_FUNCPTR(FT_Glyph_Transform)
 182 #undef MAKE_FUNCPTR
 183
 184 #endif /* HAVE_FREETYPE */
 185
 186 #endif