30 #include "hb-shaper-impl.hh"
34 /* Compile wasm-micro-runtime with:
36  * $ cmake -DWAMR_BUILD_MULTI_MODULE=1 -DWAMR_BUILD_REF_TYPES=1 -DWAMR_BUILD_FAST_JIT=1
42  *   - Add -DWAMR_BUILD_MULTI_MODULE=1 to your cmake build for wasm-micro-runtime,
44  *   - Remove the #define HB_WASM_NO_MODULES line below,
46  *   - Install your shared module with name ending in .wasm in
49  *   - Build your font's wasm code importing the shared modules with the desired
50  *     name. This can be done eg.: __attribute__((import_module("graphite2")))
51  *     before each symbol in the shared-module's headers.
53  *   - Try shaping your font and hope for the best...
56  * requires support from the host that seems to be missing from wasm-micro-runtime?
59 #include "hb-wasm-api.hh"
60 #include "hb-wasm-api-list.hh"
73   strncat (path, module_name, sizeof (path) - sizeof (HB_WASM_MODULE_DIR) - 16);  in _hb_wasm_module_reader()
130    * Also, wasm-micro-runtime uses a singleton instance. So if  in _hb_wasm_init()
131    * another library or client uses it, all bets are off. :-(  in _hb_wasm_init()
195   data->wasm_blob = wasm_blob;  in _hb_wasm_shaper_face_data_create()
196   data->wasm_module = wasm_module;  in _hb_wasm_shaper_face_data_create()
215   hb_wasm_shape_plan_t *plan = face_data->plan.get_acquire ();  in acquire_shape_plan()
216   if (likely (plan && face_data->plan.cmpexch (plan, nullptr)))  in acquire_shape_plan()
227   module_inst = plan->module_inst = wasm_runtime_instantiate (face_data->wasm_module,  in acquire_shape_plan()
236   exec_env = plan->exec_env = wasm_runtime_create_exec_env (module_inst,  in acquire_shape_plan()
269     plan->wasm_shape_planptr = results[0].of.i32;  in acquire_shape_plan()
289   if (cache && face_data->plan.cmpexch (nullptr, plan))  in release_shape_plan()
292   auto *module_inst = plan->module_inst;  in release_shape_plan()
293   auto *exec_env = plan->exec_env;  in release_shape_plan()
297   if (plan->wasm_shape_planptr)  in release_shape_plan()
306       arguments[0].of.i32 = plan->wasm_shape_planptr;  in release_shape_plan()
327   if (data->plan.get_relaxed ())  in _hb_wasm_shaper_face_data_destroy()
328     release_shape_plan (data, data->plan);  in _hb_wasm_shaper_face_data_destroy()
329   wasm_runtime_unload (data->wasm_module);  in _hb_wasm_shaper_face_data_destroy()
330   hb_blob_destroy (data->wasm_blob);  in _hb_wasm_shaper_face_data_destroy()
364   if (unlikely (buffer->in_error ()))  in _hb_wasm_shape()
368   hb_face_t *face = font->face;  in _hb_wasm_shape()
369   const hb_wasm_face_data_t *face_data = face->data.wasm;  in _hb_wasm_shape()
383     DEBUG_MSG (WASM, face_data, "Acquiring shape-plan failed.");  in _hb_wasm_shape()
387   auto *module_inst = plan->module_inst;  in _hb_wasm_shape()
388   auto *exec_env = plan->exec_env;  in _hb_wasm_shape()
410   arguments[0].of.i32 = plan->wasm_shape_planptr;  in _hb_wasm_shape()
433     if (!buffer->ensure_unicode ())  in _hb_wasm_shape()
443     buffer->successful = true;  in _hb_wasm_shape()
463     buffer->clear_glyph_flags ();  in _hb_wasm_shape()
464     buffer->unsafe_to_break ();  in _hb_wasm_shape()