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use native js for idle (timers next)

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This commit is contained in:
Eric House 2021-02-10 13:21:28 -08:00
parent 40e72f8b29
commit 1813552b5e
2 changed files with 42 additions and 4 deletions
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2
xwords4/wasm/Makefile
View file

@ -48,7 +48,7 @@ main.html: ${INPUTS} $(MAKEFILE) shell_minimal.html
--preload-file assets_dir --shell-file shell_minimal.html \
-s USE_SDL_TTF=2 -s USE_SDL_IMAGE=2 -s SDL2_IMAGE_FORMATS='["png"]' \
-s "EXTRA_EXPORTED_RUNTIME_METHODS=['ccall']" \
-s EXPORTED_FUNCTIONS='["_main", "_button", "_newgame", "_gotMQTTMsg"]' -s WASM=0 \
-s EXPORTED_FUNCTIONS='["_main", "_button", "_newgame", "_gotMQTTMsg", "_jscallback"]' \
-s WASM=1 \
${INPUTS} -o $@

44
xwords4/wasm/main.c
View file

@ -69,6 +69,15 @@ EM_JS(bool, call_mqttSend, (const char* topic, const uint8_t* ptr, int len), {
return mqttSend(topStr, buffer);
});
typedef void (*JSCallback)(void* closure);
EM_JS(void, jscallback_set, (JSCallback proc, void* closure, int inMS), {
let timerproc = function(closure) {
ccall('jscallback', null, ['number', 'number'], [proc, closure]);
};
setTimeout( timerproc, inMS, closure );
});
static void updateScreen( Globals* globals, bool doSave );
static Globals* sGlobals;
@ -388,12 +397,34 @@ main_alert( Globals* globals, const XP_UCHAR* msg )
call_alert( msg );
}
typedef struct _IdleClosure {
Globals* globals;
IdleProc proc;
void* closure;
} IdleClosure;
static void
onIdleFired( void* closure )
{
LOG_FUNC();
IdleClosure* ic = (IdleClosure*)closure;
XP_Bool draw = (*ic->proc)(ic->closure);
if ( draw ) {
updateScreen( ic->globals, true );
}
XP_FREE( ic->globals->mpool, ic );
}
void
main_set_idle( Globals* globals, IdleProc proc, void* closure )
{
XP_ASSERT( !globals->idleProc || globals->idleProc == proc );
globals->idleProc = proc;
globals->idleClosure = closure;
LOG_FUNC();
IdleClosure* ic = XP_MALLOC( globals->mpool, sizeof(*ic) );
ic->globals = globals;
ic->proc = proc;
ic->closure = closure;
jscallback_set( onIdleFired, ic, 0 );
}
static XP_Bool
@ -615,6 +646,13 @@ gotMQTTMsg( void* closure, int len, const uint8_t* msg )
dvc_parseMQTTPacket( globals->dutil, NULL, msg, len );
}
void
jscallback( JSCallback proc, void* closure )
{
LOG_FUNC();
(*proc)(closure);
}
int
main( int argc, const char** argv )
{