Trying to export to HTML5 with custom c++-module from Ubuntu

Develop3D

Hi there, i have already made it to compile from the sources for a Ubuntu-Frontend and also export to X11 already works fine.

But setting up Emscripten for the export to HTML5 does not work properly yet. I have installed the EMSDK and tried to follow the explanations in the docs. anybody any idea?

scons platform=javascript tools=no target=release javascript_eval=no -j6
scons: Reading SConscript files ...
WebM SIMD optimizations are disabled. Check if your CPU architecture, CPU bits or platform are supported!
Checking for C header file mntent.h... (cached) yes
scons: done reading SConscript files.
scons: Building targets ...
[  4%] Compiling ==> platform/javascript/os_javascript.cpp
[  4%] cache:INFO: generating system asset: is_vanilla.txt... (this will be cached in "/home/peterk/.emscripten_cache/is_vanilla.txt" for subsequent builds)
cache:INFO:  - ok
[  7%] Linking Static Library ==> main/libmain.javascript.opt.bc
[  7%] Ranlib Library         ==> main/libmain.javascript.opt.bc
[  8%] Compiling ==> main/tests/test_math.cpp
[  8%] Compiling ==> main/tests/test_oa_hash_map.cpp
[  8%] Compiling ==> main/tests/test_ordered_hash_map.cpp
[  8%] Compiling ==> main/tests/test_physics.cpp
[  8%] Compiling ==> main/tests/test_physics_2d.cpp
[  8%] Compiling ==> main/tests/test_render.cpp
[  8%] Compiling ==> main/tests/test_shader_lang.cpp
[  8%] Compiling ==> main/tests/test_string.cpp
[  9%] Compiling ==> modules/register_module_types.gen.cpp
[  9%] Compiling ==> modules/bmp/image_loader_bmp.cpp
platform/javascript/os_javascript.cpp:316:28: error: no member named 'timestamp' in 'EmscriptenMouseEvent'
                uint64_t diff = p_event->timestamp - os->last_click_ms;
                                ~~~~~~~  ^
platform/javascript/os_javascript.cpp:950:2: warning: template argument uses unnamed type [-Wunnamed-type-template-args]
        EM_ASM_ARGS({
        ^~~~~~~~~~~~~
/home/peterk/emsdk-master/upstream/emscripten/system/include/emscripten/em_asm.h:240:63: note: expanded from macro 'EM_ASM_ARGS'
#define EM_ASM_ARGS(code, ...) emscripten_asm_const_int(#code _EM_ASM_PREP_ARGS(__VA_ARGS__))
                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/peterk/emsdk-master/upstream/emscripten/system/include/emscripten/em_asm.h:149:39: note: expanded from macro '_EM_ASM_PREP_ARGS'
    , __em_asm_sig_builder<__typeof__(__em_asm_make_type_tuple(__VA_ARGS__))>::buffer, ##__VA_ARGS__
                                      ^~~~~~~~~~~~~~~~~~~~~~~~
./core/os/main_loop.h:53:2: note: unnamed type used in template argument was declared here
        enum {
        ^
platform/javascript/os_javascript.cpp:950:2: warning: template argument uses unnamed type [-Wunnamed-type-template-args]
        EM_ASM_ARGS({
        ^~~~~~~~~~~~~
/home/peterk/emsdk-master/upstream/emscripten/system/include/emscripten/em_asm.h:240:63: note: expanded from macro 'EM_ASM_ARGS'
#define EM_ASM_ARGS(code, ...) emscripten_asm_const_int(#code _EM_ASM_PREP_ARGS(__VA_ARGS__))
                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/peterk/emsdk-master/upstream/emscripten/system/include/emscripten/em_asm.h:149:39: note: expanded from macro '_EM_ASM_PREP_ARGS'
    , __em_asm_sig_builder<__typeof__(__em_asm_make_type_tuple(__VA_ARGS__))>::buffer, ##__VA_ARGS__
                                      ^~~~~~~~~~~~~~~~~~~~~~~~
./core/os/main_loop.h:53:2: note: unnamed type used in template argument was declared here
        enum {
        ^
platform/javascript/os_javascript.cpp:950:2: warning: template argument uses unnamed type [-Wunnamed-type-template-args]
        EM_ASM_ARGS({
        ^~~~~~~~~~~~~
/home/peterk/emsdk-master/upstream/emscripten/system/include/emscripten/em_asm.h:240:63: note: expanded from macro 'EM_ASM_ARGS'
#define EM_ASM_ARGS(code, ...) emscripten_asm_const_int(#code _EM_ASM_PREP_ARGS(__VA_ARGS__))
                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/peterk/emsdk-master/upstream/emscripten/system/include/emscripten/em_asm.h:149:39: note: expanded from macro '_EM_ASM_PREP_ARGS'
    , __em_asm_sig_builder<__typeof__(__em_asm_make_type_tuple(__VA_ARGS__))>::buffer, ##__VA_ARGS__
                                      ^~~~~~~~~~~~~~~~~~~~~~~~
./core/os/main_loop.h:53:2: note: unnamed type used in template argument was declared here
        enum {
        ^
platform/javascript/os_javascript.cpp:950:2: warning: template argument uses unnamed type [-Wunnamed-type-template-args]
        EM_ASM_ARGS({
        ^~~~~~~~~~~~~
/home/peterk/emsdk-master/upstream/emscripten/system/include/emscripten/em_asm.h:240:63: note: expanded from macro 'EM_ASM_ARGS'
#define EM_ASM_ARGS(code, ...) emscripten_asm_const_int(#code _EM_ASM_PREP_ARGS(__VA_ARGS__))
                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/peterk/emsdk-master/upstream/emscripten/system/include/emscripten/em_asm.h:149:39: note: expanded from macro '_EM_ASM_PREP_ARGS'
    , __em_asm_sig_builder<__typeof__(__em_asm_make_type_tuple(__VA_ARGS__))>::buffer, ##__VA_ARGS__
                                      ^~~~~~~~~~~~~~~~~~~~~~~~
./core/os/main_loop.h:53:2: note: unnamed type used in template argument was declared here
        enum {
        ^
[  9%] Compiling ==> modules/bmp/register_types.cpp
4 warnings and 1 error generated.
shared:ERROR: '/home/peterk/emsdk-master/upstream/bin/clang++ -target wasm32-unknown-emscripten -D__EMSCRIPTEN_major__=1 -D__EMSCRIPTEN_minor__=39 -D__EMSCRIPTEN_tiny__=6 -D_LIBCPP_ABI_VERSION=2 -Dunix -D__unix -D__unix__ -Werror=implicit-function-declaration -Xclang -nostdsysteminc -Xclang -isystem/home/peterk/emsdk-master/upstream/emscripten/system/include/libcxx -Xclang -isystem/home/peterk/emsdk-master/upstream/emscripten/system/lib/libcxxabi/include -Xclang -isystem/home/peterk/emsdk-master/upstream/emscripten/system/include/compat -Xclang -isystem/home/peterk/emsdk-master/upstream/emscripten/system/include -Xclang -isystem/home/peterk/emsdk-master/upstream/emscripten/system/include/libc -Xclang -isystem/home/peterk/emsdk-master/upstream/emscripten/system/lib/libc/musl/arch/emscripten -Xclang -isystem/home/peterk/emsdk-master/upstream/emscripten/system/local/include -Xclang -isystem/home/peterk/.emscripten_cache/wasm-obj/include -c -Os -fno-exceptions -fno-rtti -Wall -Werror=return-type -DZSTD_STATIC_LINKING_ONLY -DFREETYPE_ENABLED -DSVG_ENABLED -DJAVASCRIPT_ENABLED -DUNIX_ENABLED -DNO_THREADS -DNO_SAFE_CAST -DNDEBUG -DPTRCALL_ENABLED -DGDSCRIPT_ENABLED -DMINIZIP_ENABLED -DHAVE_MNTENT -Ieditor -I. -Iplatform/javascript -Ithirdparty/zlib -Ithirdparty/zstd -Ithirdparty/libpng -Ithirdparty/freetype/include -Ithirdparty/nanosvg -std=c++03 -DEMSCRIPTEN platform/javascript/os_javascript.cpp -fno-inline-functions -Xclang -isystem/home/peterk/emsdk-master/upstream/emscripten/system/include/SDL -c -o platform/javascript/os_javascript.javascript.opt.bc -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr' failed (1)
scons: *** [platform/javascript/os_javascript.javascript.opt.bc] Error 1
scons: building terminated because of errors.

TwistedTwigleg

I edited the post slightly so the output log is in a code block, so the output is not rendered in markdown.

Unfortunately, I have no idea on what could be causing the issue. The only thing I might suggest is posting this question on other Godot communities as well (like Godot Facebook/Reddit/Discord). Hopefully someone with experience compiling HTML can help deduce what is going on

(Side note: welcome to the forums)

Develop3D

At least i made it with a workaround on the error in platform/javascript/os_javascript.cpp

The problem was in this method

EM_BOOL OS_JavaScript::mouse_button_callback(int p_event_type, const EmscriptenMouseEvent p_event, void p_user_data) {

OS_JavaScript *os = get_singleton();

Ref<InputEventMouseButton> ev;
ev.instance();
ev->set_pressed(p_event_type == EMSCRIPTEN_EVENT_MOUSEDOWN);
ev->set_position(correct_canvas_position(p_event->canvasX, p_event->canvasY));
ev->set_global_position(ev->get_position());
dom2godot_mod(p_event, ev);
switch (p_event->button) {
	case DOM_BUTTON_LEFT: ev->set_button_index(BUTTON_LEFT); break;
	case DOM_BUTTON_MIDDLE: ev->set_button_index(BUTTON_MIDDLE); break;
	case DOM_BUTTON_RIGHT: ev->set_button_index(BUTTON_RIGHT); break;
	case DOM_BUTTON_XBUTTON1: ev->set_button_index(BUTTON_XBUTTON1); break;
	case DOM_BUTTON_XBUTTON2: ev->set_button_index(BUTTON_XBUTTON2); break;
	default: return false;
}

if (ev->is_pressed()) {

// uint64_t diff = p_event->timestamp - os->last_click_ms; //HACK!!!

uint64_t diff = 500;

so with hacking out timestamp i could completely compile the export-template. So everything worked since then including exporting a project to HTML5 The only thing not working yet is including my custom module which only spits out errors in the browser

SCRIPT ERROR: Parse Error: Identifier 'CalculatorRef' is not declared in the current scope. 2D in 3D.js:7:32612 At: built-in:6:GDScript::reload() - Parse Error: Identifier 'CalculatorRef' is not declared in the current scope. 2D in 3D.js:7:32612 ERROR: Method/Function Failed, returning: ERR_PARSE_ERROR 2D in 3D.js:7:32612 At: modules/gdscript/gdscript.cpp:580:reload() - Method/Function Failed, returning: ERR_PARSE_ERROR 2D in 3D.js:7:32612

Any idea?