1 #define HB_WASM_INTERFACE(ret_t, name) __attribute__((export_name(#name))) ret_t name
2
3 #include <hb-wasm-api.h>
4
5 extern "C" {
6 void debugprint (const char *s);
7 void debugprint1 (const char *s, int32_t);
8 void debugprint2 (const char *s, int32_t, int32_t);
9 }
10
11 bool_t
shape(void * shape_plan,font_t * font,buffer_t * buffer,const feature_t * features,uint32_t num_features)12 shape (void *shape_plan,
13 font_t *font,
14 buffer_t *buffer,
15 const feature_t *features,
16 uint32_t num_features)
17 {
18 face_t *face = font_get_face (font);
19
20 blob_t blob = BLOB_INIT;
21 face_copy_table (face, TAG ('c','m','a','p'), &blob);
22
23 debugprint1 ("cmap length", blob.length);
24
25 blob_free (&blob);
26
27 buffer_contents_t contents = BUFFER_CONTENTS_INIT;
28 if (!buffer_copy_contents (buffer, &contents))
29 return false;
30
31 debugprint1 ("buffer length", contents.length);
32
33 glyph_outline_t outline = GLYPH_OUTLINE_INIT;
34
35 for (unsigned i = 0; i < contents.length; i++)
36 {
37 char name[64];
38
39 debugprint1 ("glyph at", i);
40
41 font_glyph_to_string (font, contents.info[i].codepoint, name, sizeof (name));
42
43 debugprint (name);
44
45 contents.info[i].codepoint = font_get_glyph (font, contents.info[i].codepoint, 0);
46 contents.pos[i].x_advance = font_get_glyph_h_advance (font, contents.info[i].codepoint);
47
48 font_copy_glyph_outline (font, contents.info[i].codepoint, &outline);
49 debugprint1 ("num outline points", outline.n_points);
50 debugprint1 ("num outline contours", outline.n_contours);
51 }
52
53 glyph_outline_free (&outline);
54
55 bool_t ret = buffer_set_contents (buffer, &contents);
56
57 buffer_contents_free (&contents);
58
59 return ret;
60 }
61