2023-02-22 20:19:06 +01:00
|
|
|
/*
|
|
|
|
* Copyright © 2011 Google, Inc.
|
|
|
|
*
|
|
|
|
* This is part of HarfBuzz, a text shaping library.
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, without written agreement and without
|
|
|
|
* license or royalty fees, to use, copy, modify, and distribute this
|
|
|
|
* software and its documentation for any purpose, provided that the
|
|
|
|
* above copyright notice and the following two paragraphs appear in
|
|
|
|
* all copies of this software.
|
|
|
|
*
|
|
|
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
|
|
|
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
|
|
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
|
|
|
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
|
|
* DAMAGE.
|
|
|
|
*
|
|
|
|
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
|
|
|
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
|
|
|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
|
|
|
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
|
|
|
*
|
|
|
|
* Google Author(s): Behdad Esfahbod
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "hb-shaper-impl.hh"
|
|
|
|
|
|
|
|
#ifdef HAVE_WASM
|
|
|
|
|
2023-02-22 20:57:19 +01:00
|
|
|
#include <wasm_c_api.h>
|
|
|
|
|
|
|
|
#define own // wasm-micro-runtime wasm-c-api/hello.c example has this; no idea why :))
|
|
|
|
|
|
|
|
static wasm_store_t *
|
|
|
|
get_wasm_store ()
|
|
|
|
{
|
|
|
|
|
|
|
|
static wasm_store_t *store;
|
|
|
|
if (!store)
|
|
|
|
{
|
|
|
|
static wasm_engine_t *engine = wasm_engine_new();
|
|
|
|
store = wasm_store_new (engine);
|
|
|
|
}
|
|
|
|
|
|
|
|
return store;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2023-02-22 20:19:06 +01:00
|
|
|
/*
|
|
|
|
* shaper face data
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define HB_WASM_TAG_WASM HB_TAG('W','a','s','m')
|
|
|
|
|
|
|
|
struct hb_wasm_face_data_t {
|
|
|
|
hb_blob_t *blob;
|
2023-02-22 20:57:19 +01:00
|
|
|
wasm_module_t *mod;
|
2023-02-22 20:19:06 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
hb_wasm_face_data_t *
|
|
|
|
_hb_wasm_shaper_face_data_create (hb_face_t *face)
|
|
|
|
{
|
2023-02-22 20:57:19 +01:00
|
|
|
hb_blob_t *wasm_blob = nullptr;
|
|
|
|
own wasm_module_t *wasm_module = nullptr;
|
|
|
|
hb_wasm_face_data_t *data = nullptr;
|
|
|
|
|
|
|
|
wasm_blob = hb_face_reference_table (face, HB_WASM_TAG_WASM);
|
|
|
|
unsigned length = hb_blob_get_length (wasm_blob);
|
|
|
|
if (!length)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
wasm_byte_vec_t binary;
|
|
|
|
wasm_byte_vec_new_uninitialized (&binary, length);
|
|
|
|
memcpy (binary.data, hb_blob_get_data (wasm_blob, nullptr), length);
|
|
|
|
wasm_module = wasm_module_new (get_wasm_store (), &binary);
|
|
|
|
if (!wasm_module)
|
|
|
|
goto fail;
|
|
|
|
wasm_byte_vec_delete(&binary);
|
|
|
|
|
|
|
|
data = (hb_wasm_face_data_t *) hb_calloc (1, sizeof (hb_wasm_face_data_t));
|
2023-02-22 20:19:06 +01:00
|
|
|
if (unlikely (!data))
|
2023-02-22 20:57:19 +01:00
|
|
|
goto fail;
|
2023-02-22 20:19:06 +01:00
|
|
|
|
|
|
|
data->blob = wasm_blob;
|
2023-02-22 20:57:19 +01:00
|
|
|
data->mod = wasm_module;
|
2023-02-22 20:19:06 +01:00
|
|
|
|
|
|
|
return data;
|
2023-02-22 20:57:19 +01:00
|
|
|
|
|
|
|
fail:
|
|
|
|
if (wasm_module)
|
|
|
|
wasm_module_delete (wasm_module);
|
|
|
|
hb_blob_destroy (wasm_blob);
|
|
|
|
hb_free (data);
|
|
|
|
return nullptr;
|
2023-02-22 20:19:06 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
_hb_wasm_shaper_face_data_destroy (hb_wasm_face_data_t *data)
|
|
|
|
{
|
2023-02-22 20:57:19 +01:00
|
|
|
wasm_module_delete (data->mod);
|
2023-02-22 20:19:06 +01:00
|
|
|
hb_blob_destroy (data->blob);
|
|
|
|
hb_free (data);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* shaper font data
|
|
|
|
*/
|
|
|
|
|
|
|
|
struct hb_wasm_font_data_t {};
|
|
|
|
|
|
|
|
hb_wasm_font_data_t *
|
|
|
|
_hb_wasm_shaper_font_data_create (hb_font_t *font HB_UNUSED)
|
|
|
|
{
|
|
|
|
return (hb_wasm_font_data_t *) HB_SHAPER_DATA_SUCCEEDED;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
_hb_wasm_shaper_font_data_destroy (hb_wasm_font_data_t *data HB_UNUSED)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* shaper
|
|
|
|
*/
|
|
|
|
|
|
|
|
hb_bool_t
|
|
|
|
_hb_wasm_shape (hb_shape_plan_t *shape_plan,
|
|
|
|
hb_font_t *font,
|
|
|
|
hb_buffer_t *buffer,
|
|
|
|
const hb_feature_t *features,
|
|
|
|
unsigned int num_features)
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|