https://emscripten.org/docs/porting/connecting_cpp_and_javascript/embind.html#memory-views talks about memory views but leaves much unsaid. Where can I find complete documentation? I’m looking for information about all the possible arguments to the constructor in usage such as
std::vector<uint8_t> bytes{};
bytes.resize(data["byteLength"].as<size_t>());
emscripten::val memory =
emscripten::val::module_property("HEAP8")["buffer"];
emscripten::val memoryView = data["constructor"].new_(memory,
reinterpret_cast<uintptr_t>(bytes.data()), data["length"].as<uint32_t>());
memoryView.call<void>("set", data);
(This usage isn’t even mentioned on the referenced page.)
In particular I want to know if there is a way to give an offset to either the
view constructor or the set method so that “data” gets copied into just part of
the bytes vector.
I also want to know how in usage such as
std::vector<uint8_t> cDst;
cDst.resize(bytes_per_slice);
/* Write data to cDst vector …. */
return val(typed_memory_view(cDst.size(), cDst.data());
the receiver in JS can delete the data when done with it.
Regards
-Mark
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