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#include <assert.h>
#include "emscripten_internal.h"
typedef struct set_cavas_size_t {
const char* target;
int width;
int height;
} set_cavas_size_t;
static void do_set_size(void* arg) {
set_cavas_size_t* args = (set_cavas_size_t*)arg;
_emscripten_set_offscreencanvas_size(args->target, args->width, args->height);
free(arg);
}
void _emscripten_set_offscreencanvas_size_on_thread(pthread_t t,
const char* target,
int width,
int height) {
set_cavas_size_t* arg = malloc(sizeof(set_cavas_size_t));
arg->target = target;
arg->width = width;
arg->height = height;
em_proxying_queue* q = emscripten_proxy_get_system_queue();
// Note: If we are also a pthread, the call below could theoretically be
// done synchronously. However if the target pthread is waiting for a
// mutex from us, then these two threads will deadlock. At the moment,
// we'd like to consider that this kind of deadlock would be an Emscripten
// runtime bug, although if emscripten_set_canvas_element_size() was
// documented to require running an event in the queue of thread that owns
// the OffscreenCanvas, then that might be ok. (safer this way however)
if (!emscripten_proxy_async(q, t, do_set_size, arg)) {
assert(false && "emscripten_proxy_async failed");
}
}
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