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1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef CORE_FXGE_FX_FREETYPE_H_
8 #define CORE_FXGE_FX_FREETYPE_H_
9 
10 #include <ft2build.h>
11 #include FT_FREETYPE_H
12 #include FT_GLYPH_H
13 #include FT_LCD_FILTER_H
14 #include FT_MULTIPLE_MASTERS_H
15 #include FT_OUTLINE_H
16 #include FT_TRUETYPE_TABLES_H
17 
18 using FXFT_Face = struct FT_FaceRec_*;
19 using FXFT_Library = void*;
20 
21 using FXFT_MM_Var = FT_MM_Var*;
22 using FXFT_Open_Args = FT_Open_Args;
23 using FXFT_StreamRec = FT_StreamRec;
24 using FXFT_Stream = FT_StreamRec*;
25 using FXFT_BBox = FT_BBox;
26 using FXFT_Glyph = FT_Glyph;
27 using FXFT_CharMap = FT_CharMap;
28 
29 using FXFT_Matrix = FT_Matrix;
30 using FXFT_Vector = FT_Vector;
31 using FXFT_Outline_Funcs = FT_Outline_Funcs;
32 
33 #define FXFT_ENCODING_UNICODE FT_ENCODING_UNICODE
34 #define FXFT_ENCODING_ADOBE_STANDARD FT_ENCODING_ADOBE_STANDARD
35 #define FXFT_ENCODING_ADOBE_EXPERT FT_ENCODING_ADOBE_EXPERT
36 #define FXFT_ENCODING_ADOBE_LATIN_1 FT_ENCODING_ADOBE_LATIN_1
37 #define FXFT_ENCODING_APPLE_ROMAN FT_ENCODING_APPLE_ROMAN
38 #define FXFT_ENCODING_ADOBE_CUSTOM FT_ENCODING_ADOBE_CUSTOM
39 #define FXFT_ENCODING_MS_SYMBOL FT_ENCODING_MS_SYMBOL
40 #define FXFT_ENCODING_GB2312 FT_ENCODING_GB2312
41 #define FXFT_ENCODING_BIG5 FT_ENCODING_BIG5
42 #define FXFT_ENCODING_SJIS FT_ENCODING_SJIS
43 #define FXFT_ENCODING_JOHAB FT_ENCODING_JOHAB
44 
45 #define FXFT_LOAD_NO_SCALE FT_LOAD_NO_SCALE
46 #define FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH \
47   FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH
48 #define FXFT_LOAD_NO_BITMAP FT_LOAD_NO_BITMAP
49 
50 #define FXFT_RENDER_MODE_LCD FT_RENDER_MODE_LCD
51 #define FXFT_RENDER_MODE_MONO FT_RENDER_MODE_MONO
52 #define FXFT_RENDER_MODE_NORMAL FT_RENDER_MODE_NORMAL
53 
54 #define FXFT_PIXEL_MODE_MONO FT_PIXEL_MODE_MONO
55 
56 #define FXFT_STYLE_FLAG_ITALIC FT_STYLE_FLAG_ITALIC
57 #define FXFT_STYLE_FLAG_BOLD FT_STYLE_FLAG_BOLD
58 
59 #define FXFT_FACE_FLAG_SFNT FT_FACE_FLAG_SFNT
60 #define FXFT_FACE_FLAG_TRICKY (1L << 13)
61 
62 #define FXFT_GLYPH_BBOX_PIXELS FT_GLYPH_BBOX_PIXELS
63 
64 #define FXFT_Open_Face(library, args, index, face)            \
65   FT_Open_Face(static_cast<FT_Library>(library), args, index, \
66                static_cast<FT_Face*>(face))
67 #define FXFT_Done_Face(face) FT_Done_Face(static_cast<FT_Face>(face))
68 #define FXFT_Done_FreeType(library) \
69   FT_Done_FreeType(static_cast<FT_Library>(library))
70 #define FXFT_Init_FreeType(library) \
71   FT_Init_FreeType(reinterpret_cast<FT_Library*>(library))
72 #define FXFT_Library_Version(library, amajor, aminor, apatch)               \
73   FT_Library_Version(reinterpret_cast<FT_Library>(library), amajor, aminor, \
74                      apatch)
75 #define FXFT_New_Memory_Face(library, base, size, index, face)            \
76   FT_New_Memory_Face(static_cast<FT_Library>(library), base, size, index, \
77                      static_cast<FT_Face*>(face))
78 #define FXFT_New_Face(library, filename, index, face)            \
79   FT_New_Face(static_cast<FT_Library>(library), filename, index, \
80               static_cast<FT_Face*>(face))
81 #define FXFT_Select_Charmap(face, encoding)     \
82   FT_Select_Charmap(static_cast<FT_Face>(face), \
83                     static_cast<FT_Encoding>(encoding))
84 #define FXFT_Set_Charmap(face, charmap) \
85   FT_Set_Charmap(static_cast<FT_Face>(face), static_cast<FT_CharMap>(charmap))
86 #define FXFT_Load_Glyph(face, glyph_index, flags) \
87   FT_Load_Glyph(static_cast<FT_Face>(face), glyph_index, flags)
88 #define FXFT_Get_Char_Index(face, code) \
89   FT_Get_Char_Index(static_cast<FT_Face>(face), code)
90 #define FXFT_Get_Glyph_Name(face, index, buffer, size) \
91   FT_Get_Glyph_Name(static_cast<FT_Face>(face), index, buffer, size)
92 #define FXFT_Get_Name_Index(face, name) \
93   FT_Get_Name_Index(static_cast<FT_Face>(face), name)
94 #define FXFT_Has_Glyph_Names(face) \
95   (static_cast<FT_Face>(face)->face_flags & FT_FACE_FLAG_GLYPH_NAMES)
96 #define FXFT_Get_Postscript_Name(face) \
97   FT_Get_Postscript_Name(static_cast<FT_Face>(face))
98 #define FXFT_Load_Sfnt_Table(face, tag, offset, buffer, length) \
99   FT_Load_Sfnt_Table(static_cast<FT_Face>(face), tag, offset, buffer, length)
100 #define FXFT_Get_First_Char(face, glyph_index) \
101   FT_Get_First_Char(static_cast<FT_Face>(face), glyph_index)
102 #define FXFT_Get_Next_Char(face, code, glyph_index) \
103   FT_Get_Next_Char(static_cast<FT_Face>(face), code, glyph_index)
104 #define FXFT_Clear_Face_External_Stream(face) \
105   (static_cast<FT_Face>(face)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM)
106 #define FXFT_Get_Face_External_Stream(face) \
107   (static_cast<FT_Face>(face)->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM)
108 #define FXFT_Is_Face_TT_OT(face) \
109   (static_cast<FT_Face>(face)->face_flags & FT_FACE_FLAG_SFNT)
110 #define FXFT_Is_Face_Tricky(face) \
111   (static_cast<FT_Face>(face)->face_flags & FXFT_FACE_FLAG_TRICKY)
112 #define FXFT_Is_Face_fixedwidth(face) \
113   (static_cast<FT_Face>(face)->face_flags & FT_FACE_FLAG_FIXED_WIDTH)
114 #define FXFT_Get_Face_Stream_Base(face) static_cast<FT_Face>(face)->stream->base
115 #define FXFT_Get_Face_Stream_Size(face) static_cast<FT_Face>(face)->stream->size
116 #define FXFT_Get_Face_Family_Name(face) static_cast<FT_Face>(face)->family_name
117 #define FXFT_Get_Face_Style_Name(face) static_cast<FT_Face>(face)->style_name
118 #define FXFT_Is_Face_Italic(face) \
119   (static_cast<FT_Face>(face)->style_flags & FT_STYLE_FLAG_ITALIC)
120 #define FXFT_Is_Face_Bold(face) \
121   (static_cast<FT_Face>(face)->style_flags & FT_STYLE_FLAG_BOLD)
122 #define FXFT_Get_Face_Charmaps(face) static_cast<FT_Face>(face)->charmaps
123 #define FXFT_Get_Glyph_HoriBearingX(face) \
124   static_cast<FT_Face>(face)->glyph->metrics.horiBearingX
125 #define FXFT_Get_Glyph_HoriBearingY(face) \
126   static_cast<FT_Face>(face)->glyph->metrics.horiBearingY
127 #define FXFT_Get_Glyph_Width(face) \
128   static_cast<FT_Face>(face)->glyph->metrics.width
129 #define FXFT_Get_Glyph_Height(face) \
130   static_cast<FT_Face>(face)->glyph->metrics.height
131 #define FXFT_Get_Face_CharmapCount(face) \
132   static_cast<FT_Face>(face)->num_charmaps
133 #define FXFT_Get_Charmap_Encoding(charmap) \
134   static_cast<FT_CharMap>(charmap)->encoding
135 #define FXFT_Get_Face_Charmap(face) static_cast<FT_Face>(face)->charmap
136 #define FXFT_Get_Charmap_PlatformID(charmap) \
137   static_cast<FT_CharMap>(charmap)->platform_id
138 #define FXFT_Get_Charmap_EncodingID(charmap) \
139   static_cast<FT_CharMap>(charmap)->encoding_id
140 #define FXFT_Get_Face_UnitsPerEM(face) static_cast<FT_Face>(face)->units_per_EM
141 #define FXFT_Get_Face_xMin(face) static_cast<FT_Face>(face)->bbox.xMin
142 #define FXFT_Get_Face_xMax(face) static_cast<FT_Face>(face)->bbox.xMax
143 #define FXFT_Get_Face_yMin(face) static_cast<FT_Face>(face)->bbox.yMin
144 #define FXFT_Get_Face_yMax(face) static_cast<FT_Face>(face)->bbox.yMax
145 #define FXFT_Get_Face_Height(face) static_cast<FT_Face>(face)->height
146 #define FXFT_Get_Face_Ascender(face) static_cast<FT_Face>(face)->ascender
147 #define FXFT_Get_Face_Descender(face) static_cast<FT_Face>(face)->descender
148 #define FXFT_Get_Glyph_HoriAdvance(face) \
149   static_cast<FT_Face>(face)->glyph->metrics.horiAdvance
150 #define FXFT_Get_MM_Axis(var, index) &static_cast<FT_MM_Var*>(var)->axis[index]
151 #define FXFT_Get_MM_Axis_Min(axis) static_cast<FT_Var_Axis*>(axis)->minimum
152 #define FXFT_Get_MM_Axis_Max(axis) static_cast<FT_Var_Axis*>(axis)->maximum
153 #define FXFT_Get_MM_Axis_Def(axis) static_cast<FT_Var_Axis*>(axis)->def
154 #define FXFT_Free(face, p)                                                     \
155   static_cast<FT_Face>(face)->memory->free(static_cast<FT_Face>(face)->memory, \
156                                            p)
157 #define FXFT_Get_Glyph_Outline(face) &static_cast<FT_Face>(face)->glyph->outline
158 #define FXFT_Render_Glyph(face, mode)                \
159   FT_Render_Glyph(static_cast<FT_Face>(face)->glyph, \
160                   static_cast<enum FT_Render_Mode_>(mode))
161 #define FXFT_Get_MM_Var(face, p) FT_Get_MM_Var(static_cast<FT_Face>(face), p)
162 #define FXFT_Set_MM_Design_Coordinates(face, n, p) \
163   FT_Set_MM_Design_Coordinates(static_cast<FT_Face>(face), n, p)
164 #define FXFT_Set_Pixel_Sizes(face, w, h) \
165   FT_Set_Pixel_Sizes(static_cast<FT_Face>(face), w, h)
166 #define FXFT_Set_Transform(face, m, d) \
167   FT_Set_Transform(static_cast<FT_Face>(face), m, d)
168 #define FXFT_Outline_Embolden(outline, s) FT_Outline_Embolden(outline, s)
169 #define FXFT_Get_Glyph_Bitmap(face) &static_cast<FT_Face>(face)->glyph->bitmap
170 #define FXFT_Get_Bitmap_Width(bitmap) static_cast<FT_Bitmap*>(bitmap)->width
171 #define FXFT_Get_Bitmap_Rows(bitmap) static_cast<FT_Bitmap*>(bitmap)->rows
172 #define FXFT_Get_Bitmap_PixelMode(bitmap) \
173   static_cast<FT_Bitmap*>(bitmap)->pixel_mode
174 #define FXFT_Get_Bitmap_Pitch(bitmap) static_cast<FT_Bitmap*>(bitmap)->pitch
175 #define FXFT_Get_Bitmap_Buffer(bitmap) static_cast<FT_Bitmap*>(bitmap)->buffer
176 #define FXFT_Get_Glyph_BitmapLeft(face) \
177   static_cast<FT_Face>(face)->glyph->bitmap_left
178 #define FXFT_Get_Glyph_BitmapTop(face) \
179   static_cast<FT_Face>(face)->glyph->bitmap_top
180 #define FXFT_Outline_Decompose(outline, funcs, params) \
181   FT_Outline_Decompose(outline, funcs, params)
182 #define FXFT_Set_Char_Size(face, char_width, char_height, horz_resolution, \
183                            vert_resolution)                                \
184   FT_Set_Char_Size(face, char_width, char_height, horz_resolution,         \
185                    vert_resolution)
186 #define FXFT_Get_Glyph(slot, aglyph) FT_Get_Glyph(slot, aglyph)
187 #define FXFT_Glyph_Get_CBox(glyph, bbox_mode, acbox) \
188   FT_Glyph_Get_CBox(glyph, bbox_mode, acbox)
189 #define FXFT_Done_Glyph(glyph) FT_Done_Glyph(glyph)
190 #define FXFT_Library_SetLcdFilter(library, filter) \
191   FT_Library_SetLcdFilter(static_cast<FT_Library>(library), filter)
192 
193 int FXFT_unicode_from_adobe_name(const char* glyph_name);
194 void FXFT_adobe_name_from_unicode(char* name, wchar_t unicode);
195 
196 #endif  // CORE_FXGE_FX_FREETYPE_H_
197