VAL GETBIG(VM * vm, VAL x) {
idris_requireAlloc(IDRIS_MAXGMP);
if (ISINT(x)) {
mpz_t* bigint;
VAL cl = allocate(sizeof(Closure) + sizeof(mpz_t), 0);
idris_doneAlloc();
bigint = (mpz_t*)(((char*)cl) + sizeof(Closure));
mpz_init(*bigint);
mpz_set_si(*bigint, GETINT(x));
SETTY(cl, CT_BIGINT);
cl -> info.ptr = (void*)bigint;
return cl;
} else {
idris_doneAlloc();
switch(GETTY(x)) {
case CT_FWD:
return GETBIG(vm, x->info.ptr);
default:
return x;
}
}
}
void* processEvent(VM* vm, int r, SDL_Event * e) {
VAL idris_event;
SDL_Event event = *e;
idris_requireAlloc(128); // Conservative!
if (r==0) {
idris_constructor(idris_event, vm, 0, 0, 0); // Nothing
}
else {
VAL ievent = NULL;
switch(event.type) {
case SDL_KEYDOWN:
ievent = KEY(vm, 0, event.key.keysym.sym);
break;
case SDL_KEYUP:
ievent = KEY(vm, 1, event.key.keysym.sym);
break;
case SDL_MOUSEMOTION:
ievent = MOTION(vm, event.motion.x, event.motion.y,
event.motion.xrel, event.motion.yrel);
break;
case SDL_MOUSEBUTTONDOWN:
ievent = BUTTON(vm, 3, event.button.button, event.button.x, event.button.y);
break;
case SDL_MOUSEBUTTONUP:
ievent = BUTTON(vm, 4, event.button.button, event.button.x, event.button.y);
break;
case SDL_MOUSEWHEEL:
idris_constructor(ievent, vm, 5, 1, 0);
idris_setConArg(ievent, 0, MKINT((intptr_t) event.wheel.y));
break;
case SDL_WINDOWEVENT:
switch(event.window.event) {
case SDL_WINDOWEVENT_RESIZED:
ievent = RESIZE(vm, event.window.data1, event.window.data2);
break;
default:
// TODO: other window event
idris_constructor(ievent, vm, 8, 0, 0);
}
break;
case SDL_QUIT:
idris_constructor(ievent, vm, 7, 0, 0);
break;
default:
idris_constructor(idris_event, vm, 0, 0, 0); // Nothing
idris_doneAlloc(vm);
return idris_event;
}
idris_constructor(idris_event, vm, 1, 1, 0);
idris_setConArg(idris_event, 0, ievent); // Just ievent
}
idris_doneAlloc(vm);
return idris_event;
}
VAL bigAShiftRight(VM* vm, VAL x, VAL y) {
idris_requireAlloc(IDRIS_MAXGMP);
mpz_t* bigint;
VAL cl = allocate(sizeof(Closure) + sizeof(mpz_t), 0);
idris_doneAlloc();
bigint = (mpz_t*)(((char*)cl) + sizeof(Closure));
mpz_fdiv_q_2exp(*bigint, GETMPZ(GETBIG(vm,x)), GETINT(y));
SETTY(cl, CT_BIGINT);
cl -> info.ptr = (void*)bigint;
return cl;
}
VAL MKBIGSI(VM* vm, signed long val) {
idris_requireAlloc(IDRIS_MAXGMP);
mpz_t* bigint;
VAL cl = allocate(sizeof(Closure) + sizeof(mpz_t), 0);
idris_doneAlloc();
bigint = (mpz_t*)(((char*)cl) + sizeof(Closure));
mpz_init_set_si(*bigint, val);
SETTY(cl, CT_BIGINT);
cl -> info.ptr = (void*)bigint;
return cl;
}
VAL idr_lock_texture(SDL_Texture* texture, VM* vm) {
VAL m;
void *pixels;
int pitch;
SDL_LockTexture(texture, NULL, &pixels, &pitch);
idris_requireAlloc(128); // Conservative!
idris_constructor(m, vm, 0, 0, 0);
idris_setConArg(m, 0, MKPTR(vm, pixels));
idris_setConArg(m, 1, MKINT((intptr_t) pitch));
idris_doneAlloc(vm);
return m;
}
VAL MKBIGM(VM* vm, void* big) {
idris_requireAlloc(IDRIS_MAXGMP);
mpz_t* bigint;
VAL cl = allocate(sizeof(Closure) + sizeof(mpz_t), 0);
idris_doneAlloc();
bigint = (mpz_t*)(((char*)cl) + sizeof(Closure));
mpz_init(*bigint);
mpz_set(*bigint, *((mpz_t*)big));
SETTY(cl, CT_BIGINT);
cl -> info.ptr = (void*)bigint;
return cl;
}
VAL MKBIGC(VM* vm, char* val) {
if (*val == '\0') {
return MKBIGI(0);
}
else {
idris_requireAlloc(IDRIS_MAXGMP);
mpz_t* bigint;
VAL cl = allocate(sizeof(Closure) + sizeof(mpz_t), 0);
idris_doneAlloc();
bigint = (mpz_t*)(((char*)cl) + sizeof(Closure));
mpz_init(*bigint);
mpz_set_str(*bigint, val, 10);
SETTY(cl, CT_BIGINT);
cl -> info.ptr = (void*)bigint;
return cl;
}
}
