harfbuzz/src/hb-wasm-api.hh

80 lines
2.3 KiB
C++

/*
* Copyright © 2023 Behdad Esfahbod
*
* 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.
*/
#ifndef HB_WASM_API_HH
#define HB_WASM_API_HH
#include "hb.hh"
#include <wasm_export.h>
#define HB_WASM_API(x) HB_INTERNAL x
#define HB_WASM_BEGIN_DECLS namespace hb { namespace wasm {
#define HB_WASM_END_DECLS }}
#define HB_WASM_EXEC_ENV wasm_exec_env_t exec_env,
#include "hb-wasm-api.h"
#undef HB_WASM_API
#undef HB_WASM_BEGIN_DECLS
#undef HB_WASM_END_DECLS
#define module_inst wasm_runtime_get_module_inst (exec_env)
#include "hb-wasm-font.hh"
#undef module_inst
static void debugprint(wasm_exec_env_t exec_env, char *the_string, uint8_t len) {
printf("%.*s", len, the_string);
}
/* Define an array of NativeSymbol for the APIs to be exported.
* Note: the array must be static defined since runtime will keep it after registration
* For the function signature specifications, goto the link:
* https://github.com/bytecodealliance/wasm-micro-runtime/blob/main/doc/export_native_api.md
*/
#define NATIVE_SYMBOL(signature, name) {#name, (void *) hb::wasm::name, signature, NULL}
static NativeSymbol _hb_wasm_native_symbols[] =
{
NATIVE_SYMBOL ("(i)i", font_get_face),
#ifdef HB_DEBUG_WASM
{
"debugprint",
(void *) debugprint,
"($i)",
NULL
}
#endif
};
#undef NATIVE_SYMBOL
#endif /* HB_WASM_API_HH */