47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
#define HB_WASM_INTERFACE(ret_t, name) __attribute__((export_name(#name))) ret_t name
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#include <hb-wasm-api.h>
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extern "C" {
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void debugprint (const char *s);
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void debugprint1 (const char *s, int32_t);
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void debugprint2 (const char *s, int32_t, int32_t);
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}
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bool_t
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shape (font_t *font,
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buffer_t *buffer,
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const feature_t *features,
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uint32_t num_features)
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{
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face_t *face = font_get_face (font);
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blob_t blob = face_reference_table (face, TAG ('c','m','a','p'));
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debugprint1 ("cmap length", blob.length);
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blob_free (&blob);
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buffer_contents_t contents = buffer_copy_contents (buffer);
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debugprint1 ("buffer length", contents.length);
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for (unsigned i = 0; i < contents.length; i++)
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{
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char name[64];
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font_glyph_to_string (font, contents.info[i].codepoint, name, sizeof (name));
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debugprint (name);
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contents.info[i].codepoint = font_get_glyph (font, contents.info[i].codepoint, 0);
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contents.pos[i].x_advance = font_get_glyph_h_advance (font, contents.info[i].codepoint);
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}
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bool_t ret = buffer_set_contents (buffer, &contents);
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buffer_contents_free (&contents);
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return ret;
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}
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