Hi,
I created a simple SDL2 application with the following pseudo code:
1. SDL_Init with SDL_INIT_VIDEO
2. SDL_CreateWindow
3. SDL_CreateRenderer
4. IMG_LoadTexture
5. SDL_QueryTexture
After this, I try to start up my own message loop in the following manner:
for (;;)
{
while ((1<=SDL_PeepEvents(&e, 1, SDL_GETEVENT, SDL_QUIT,
SDL_LASTEVENT)))
{
//If user closes the window
switch (e.type)
{
case SDL_QUIT:
{
cout << " SDL_QUIT received!!!";
quitApp();
return;
}
default:
break;
}
}
emscripten_sleep(10);
}
But when I click on the window, I get the following assert:
Uncaught abort(-12) at Error
at jsStackTrace
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:1325:13)
at stackTrace
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:1342:22)
at abort
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:33928:44)
at Array._Emscripten_HandleMouseFocus
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:22365:54)
at dynCall_iiii
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:31705:40)
at Object.Runtime.dynCall
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:426:39)
at Object.handlerFunc
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:1943:38)
at HTMLCanvasElement.jsEventHandler
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:1846:24)
This error happened during an emterpreter-async save or load of the stack.
Was there non-emterpreted code on the stack during save (which is
unallowed)? You may want to adjust EMTERPRETIFY_BLACKLIST,
EMTERPRETIFY_WHITELIST, or EMTERPRETIFY_YIELDLIST (to consider certain
functions ok to run during an emscripten_sleep_with_yield).
This is what the stack looked like when we tried to save it: 1,Error
at jsStackTrace
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:1325:13)
at stackTrace
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:1342:22)
at Object.EmterpreterAsync.handle
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:8744:40)
at _emscripten_sleep
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:8767:24)
at emterpret
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:13021:6)
at Object.emterpret
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:12504:4)
at resume
(file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:8737:17)
at
file:///C:/work/git/SDLPrototypes/EventHandling/src/build/EventHandling.js:8770:11
I find this strange because I am compiling with the following linker flags:
-s NO_EXIT_RUNTIME=1 -s EMTERPRETIFY=1 -s EMTERPRETIFY_ASYNC=1 -s
ASSERTIONS=1 --preload-file image.png -O3 -g3
These are my compiler flags:
-s USE_SDL=2 -s USE_SDL_IMAGE=2 -s ASSERTIONS=1 -O3 -g3 -D_DEBUG_ -D_DEBUG
Since I did not specify any whitelist, I presume that all the code in my
generated javascript should already be emterpreted. But somehow,
_Emscripten_HandleMouseFocus isn't able to handle async states properly as
this leads to a -12 abort.
Does this mean that I have to manually add all "handle mouse" functions
into the white or yield list? Or is there a better way around it? I am on
emsdk 1.30.0.
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