1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* FTGL - OpenGL font library
*
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
* Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include "FTGL/ftgl.h"
#include "FTInternals.h"
static const FTPoint static_ftpoint;
static const FTBBox static_ftbbox;
FTGL_BEGIN_C_DECLS
#define C_TOR(cname, cargs, cxxname, cxxarg, cxxtype) \
FTGLglyph* cname cargs \
{ \
cxxname *g = new cxxname cxxarg; \
if(g->Error()) \
{ \
delete g; \
return NULL; \
} \
FTGLglyph *ftgl = (FTGLglyph *)malloc(sizeof(FTGLglyph)); \
ftgl->ptr = g; \
ftgl->type = cxxtype; \
return ftgl; \
}
// FTBitmapGlyph::FTBitmapGlyph();
C_TOR(ftglCreateBitmapGlyph, (FT_GlyphSlot glyph),
FTBitmapGlyph, (glyph), GLYPH_BITMAP);
// FTBufferGlyph::FTBufferGlyph();
// FIXME: not implemented
// FTExtrudeGlyph::FTExtrudeGlyph();
C_TOR(ftglCreateExtrudeGlyph, (FT_GlyphSlot glyph, float depth,
float frontOutset, float backOutset, int useDisplayList),
FTExtrudeGlyph, (glyph, depth, frontOutset, backOutset, (useDisplayList != 0)),
GLYPH_EXTRUDE);
// FTOutlineGlyph::FTOutlineGlyph();
C_TOR(ftglCreateOutlineGlyph, (FT_GlyphSlot glyph, float outset,
int useDisplayList),
FTOutlineGlyph, (glyph, outset, (useDisplayList != 0)), GLYPH_OUTLINE);
// FTPixmapGlyph::FTPixmapGlyph();
C_TOR(ftglCreatePixmapGlyph, (FT_GlyphSlot glyph),
FTPixmapGlyph, (glyph), GLYPH_PIXMAP);
// FTPolygonGlyph::FTPolygonGlyph();
C_TOR(ftglCreatePolygonGlyph, (FT_GlyphSlot glyph, float outset,
int useDisplayList),
FTPolygonGlyph, (glyph, outset, (useDisplayList != 0)), GLYPH_POLYGON);
// FTTextureGlyph::FTTextureGlyph();
C_TOR(ftglCreateTextureGlyph, (FT_GlyphSlot glyph, int id, int xOffset,
int yOffset, int width, int height),
FTTextureGlyph, (glyph, id, xOffset, yOffset, width, height),
GLYPH_TEXTURE);
// FTCustomGlyph::FTCustomGlyph();
class FTCustomGlyph : public FTGlyph
{
public:
FTCustomGlyph(FTGLglyph *base, void *p,
void (*render) (FTGLglyph *, void *, FTGL_DOUBLE, FTGL_DOUBLE,
int, FTGL_DOUBLE *, FTGL_DOUBLE *),
void (*destroy) (FTGLglyph *, void *))
: FTGlyph((FT_GlyphSlot)0),
baseGlyph(base),
data(p),
renderCallback(render),
destroyCallback(destroy)
{}
~FTCustomGlyph()
{
destroyCallback(baseGlyph, data);
}
float Advance() const { return baseGlyph->ptr->Advance(); }
const FTPoint& Render(const FTPoint& pen, int renderMode)
{
FTGL_DOUBLE advancex, advancey;
renderCallback(baseGlyph, data, pen.X(), pen.Y(), renderMode,
&advancex, &advancey);
advance = FTPoint(advancex, advancey);
return advance;
}
const FTBBox& BBox() const { return baseGlyph->ptr->BBox(); }
FT_Error Error() const { return baseGlyph->ptr->Error(); }
private:
FTPoint advance;
FTGLglyph *baseGlyph;
void *data;
void (*renderCallback) (FTGLglyph *, void *, FTGL_DOUBLE, FTGL_DOUBLE,
int, FTGL_DOUBLE *, FTGL_DOUBLE *);
void (*destroyCallback) (FTGLglyph *, void *);
};
C_TOR(ftglCreateCustomGlyph, (FTGLglyph *base, void *data,
void (*renderCallback) (FTGLglyph *, void *, FTGL_DOUBLE, FTGL_DOUBLE,
int, FTGL_DOUBLE *, FTGL_DOUBLE *),
void (*destroyCallback) (FTGLglyph *, void *)),
FTCustomGlyph, (base, data, renderCallback, destroyCallback),
GLYPH_CUSTOM);
#define C_FUN(cret, cname, cargs, cxxerr, cxxname, cxxarg) \
cret cname cargs \
{ \
if(!g || !g->ptr) \
{ \
fprintf(stderr, "FTGL warning: NULL pointer in %s\n", #cname); \
cxxerr; \
} \
return g->ptr->cxxname cxxarg; \
}
// FTGlyph::~FTGlyph();
void ftglDestroyGlyph(FTGLglyph *g)
{
if(!g || !g->ptr)
{
fprintf(stderr, "FTGL warning: NULL pointer in %s\n", __FUNCTION__);
return;
}
delete g->ptr;
free(g);
}
// const FTPoint& FTGlyph::Render(const FTPoint& pen, int renderMode);
extern "C++" {
C_FUN(static const FTPoint&, _ftglRenderGlyph, (FTGLglyph *g,
const FTPoint& pen, int renderMode),
return static_ftpoint, Render, (pen, renderMode));
}
void ftglRenderGlyph(FTGLglyph *g, FTGL_DOUBLE penx, FTGL_DOUBLE peny,
int renderMode, FTGL_DOUBLE *advancex,
FTGL_DOUBLE *advancey)
{
FTPoint pen(penx, peny);
FTPoint ret = _ftglRenderGlyph(g, pen, renderMode);
*advancex = ret.X();
*advancey = ret.Y();
}
// float FTGlyph::Advance() const;
C_FUN(float, ftglGetGlyphAdvance, (FTGLglyph *g), return 0.0, Advance, ());
// const FTBBox& FTGlyph::BBox() const;
extern "C++" {
C_FUN(static const FTBBox&, _ftglGetGlyphBBox, (FTGLglyph *g),
return static_ftbbox, BBox, ());
}
void ftglGetGlyphBBox(FTGLglyph *g, float bounds[6])
{
FTBBox ret = _ftglGetGlyphBBox(g);
FTPoint lower = ret.Lower(), upper = ret.Upper();
bounds[0] = lower.Xf(); bounds[1] = lower.Yf(); bounds[2] = lower.Zf();
bounds[3] = upper.Xf(); bounds[4] = upper.Yf(); bounds[5] = upper.Zf();
}
// FT_Error FTGlyph::Error() const;
C_FUN(FT_Error, ftglGetGlyphError, (FTGLglyph *g), return -1, Error, ());
FTGL_END_C_DECLS
|
