fteqw/engine/web/ftejslib.h

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//emscripten's download mechanism lacks usable progress indicators.
void emscriptenfte_async_wget_data2(const char *url, void *ctx, void (*onload)(void*ctx,void*buf,int sz), void (*onerror)(void*ctx,int code), void (*onprogress)(void*ctx,int prog,int total));
//filesystem buffers are implemented in javascript so that we are not bound by power-of-two heap limitations quite so much.
//also, we can't use emscripten's stdio because it reserves 16m file handles or something.
//these buffers do not track file offsets nor file access permissions.
int emscriptenfte_buf_create(void);
int emscriptenfte_buf_open(const char *name, int createifneeded); //open
int emscriptenfte_buf_rename(const char *oldname, const char *newname); //rename files (if it was open, the handle now refers to the new file instead)
int emscriptenfte_buf_delete(const char *fname); //delete the named file. there may be problems if its currently open
void emscriptenfte_buf_release(int handle); //close
void emscriptenfte_buf_pushtolocalstore(int handle); //make a copy in the browser's local storage, if possible.
unsigned int emscriptenfte_buf_getsize(int handle); //get the size of the file buffer
int emscriptenfte_buf_read(int handle, int offset, void *data, int len);//read data
int emscriptenfte_buf_write(int handle, int offset, const void *data, int len);//write data. no access checks.
//websocket is implemented in javascript because there is no usable C api (emscripten's javascript implementation is shite and has fatal errors).
int emscriptenfte_ws_connect(const char *url); //open a websocket connect to a specific host
void emscriptenfte_ws_close(int sockid); //close it again
int emscriptenfte_ws_cansend(int sockid, int extra, int maxpending); //returns false if we're blocking for some reason. avoids overflowing. everything is otherwise reliable.
int emscriptenfte_ws_send(int sockid, const void *data, int len); //send data to the peer. queues data. never dropped.
int emscriptenfte_ws_recv(int sockid, void *data, int len); //receive data from the peer.
//misc stuff for printf replacements
void emscriptenfte_alert(const char *msg);
void emscriptenfte_print(const char *msg);
void emscriptenfte_abortmainloop(const char *caller);
//avoid all of emscripten's sdl emulation.
//this resolves input etc issues.
unsigned long emscriptenfte_ticks_ms(void);
void emscriptenfte_polljoyevents(void);
void emscriptenfte_settitle(const char *text);
int emscriptenfte_setupcanvas(
int width,
int height,
void(*Resized)(int newwidth, int newheight),
void(*Mouse)(int devid,int abs,float x,float y,float z,float size),
void(*Button)(int devid, int down, int mbutton),
int(*Keyboard)(int devid, int down, int keycode, int unicode),
void(*LoadFile)(char *newhash, int filehandle),
void(*buttonevent)(int joydev, int button, int ispressed),
void(*axisevent)(int joydev, int axis, float value),
int (*ShouldSwitchToFullscreen)(void)
);