hb_buffer_t *hb_buffer_create(void)
{
hb_buffer_t *buffer = calloc(1, sizeof(*buffer));
if (!buffer)
return hb_buffer_get_empty();
hb_atomic_int32_set(&buffer->ref_cnt, 1);
buffer->unicode = hb_unicode_funcs_get_empty();
hb_buffer_reset(buffer);
return buffer;
}
void hb_buffer_destroy(hb_buffer_t * buffer)
{
if (!buffer)
return;
if (hb_atomic_int32_get(&buffer->ref_cnt) == REF_CNT_INVALID_VAL)
return;
hb_atomic_int32_add(&buffer->ref_cnt, -1);
if (hb_atomic_int32_get(&buffer->ref_cnt) > 0)
return;
hb_atomic_int32_set(&buffer->ref_cnt, REF_CNT_INVALID_VAL);
hb_unicode_funcs_destroy(buffer->unicode);
free(buffer->info);
free(buffer->pos);
free(buffer);
}
void
hb_font_destroy(hb_font_t *font)
{
if (!font)
return;
if (hb_atomic_int32_get(&font->ref_cnt) == REF_CNT_INVALID_VAL)
return;
hb_atomic_int32_add(&font->ref_cnt, -1);
if (hb_atomic_int32_get(&font->ref_cnt) > 0)
return;
hb_atomic_int32_set(&font->ref_cnt, REF_CNT_INVALID_VAL);
#ifdef HAVE_GRAPHITE2
if (font->shaper_data.graphite2
&& font->shaper_data.graphite2 != HB_SHAPER_DATA_INVALID
&& font->shaper_data.graphite2 != HB_SHAPER_DATA_SUCCEEDED)
hb_graphite2_shaper_font_data_destroy(font->shaper_data.graphite2);
#endif
#ifdef HAVE_OT
if (font->shaper_data.ot
&& font->shaper_data.ot != HB_SHAPER_DATA_INVALID
&& font->shaper_data.ot != HB_SHAPER_DATA_SUCCEEDED)
hb_ot_shaper_font_data_destroy(font->shaper_data.ot);
#endif
if (font->shaper_data.fallback
&& font->shaper_data.fallback != HB_SHAPER_DATA_INVALID
&& font->shaper_data.fallback != HB_SHAPER_DATA_SUCCEEDED)
hb_fallback_shaper_font_data_destroy(font->shaper_data.fallback);
if (font->destroy)
font->destroy(font->user_data);
hb_font_destroy(font->parent);
hb_face_destroy(font->face);
hb_font_funcs_destroy(font->klass);
free(font);
}
