shape-fallback.cc - mozsearch

Enable keyboard shortcuts

#define HB_WASM_INTERFACE(ret_t, name) __attribute__((export_name(#name))) ret_t name

#include <hb-wasm-api.h>

extern "C" {

void debugprint (const char *s);

void debugprint1 (const char *s, int32_t);

void debugprint2 (const char *s, int32_t, int32_t);

bool_t

shape (void *shape_plan,

       font_t *font,

       buffer_t *buffer,

       const feature_t *features,

       uint32_t num_features)

  face_t *face = font_get_face (font);

  blob_t blob = BLOB_INIT;

  face_copy_table (face, TAG ('c','m','a','p'), &blob);

  debugprint1 ("cmap length", blob.length);

  blob_free (&blob);

  buffer_contents_t contents = BUFFER_CONTENTS_INIT;

  if (!buffer_copy_contents (buffer, &contents))

    return false;

  debugprint1 ("buffer length", contents.length);

  glyph_outline_t outline = GLYPH_OUTLINE_INIT;

  for (unsigned i = 0; i < contents.length; i++)

    char name[64];

    debugprint1 ("glyph at", i);

    font_glyph_to_string (font, contents.info[i].codepoint, name, sizeof (name));

    debugprint (name);

    contents.info[i].codepoint = font_get_glyph (font, contents.info[i].codepoint, 0);

    contents.pos[i].x_advance = font_get_glyph_h_advance (font, contents.info[i].codepoint);

    font_copy_glyph_outline (font, contents.info[i].codepoint, &outline);

    debugprint1 ("num outline points", outline.n_points);

    debugprint1 ("num outline contours", outline.n_contours);

  glyph_outline_free (&outline);

  bool_t ret = buffer_set_contents (buffer, &contents);

  buffer_contents_free (&contents);

  return ret;