Loader improvements (#1378)

* tfrag3 data for merc2

* dma hooks for merc2

* start designing merc2 opengl, seems like the simple approach will be the best here

* before bone packing experiment

* fix up bones.gc

* use uniform buffer

* speedup, fix faces and eyes

* final fixes

* first pass at loader updates, tie is still bad

* temp

* improved loader

* run iop less often

game/system/iop_thread.cpp

@@ -68,76 +68,20 @@ void IOP::wait_run_iop() {
 
 void IOP::kill_from_ee() {
   want_exit = true;
-  signal_run_iop();
+  signal_run_iop(true);
 }
 
-void IOP::signal_run_iop() {
+void IOP::signal_run_iop(bool force) {
   std::unique_lock<std::mutex> lk(iters_mutex);
-  iop_iters_des++;  // todo, tune this
-  if (iop_iters_des - iop_iters_act > 500) {
-    iop_iters_des = iop_iters_act + 500;
+  if (iop_iters_act == iop_iters_des || force) {
+    iop_iters_des++;  // todo, tune this
+    if (iop_iters_des - iop_iters_act > 500) {
+      iop_iters_des = iop_iters_act + 500;
+    }
+    iop_run_cv.notify_all();
   }
-  iop_run_cv.notify_all();
 }
 
 IOP::~IOP() {
   reset_allocator();
-}
-
-// void launch_iop(SystemThreadInterface& interface) {
-//  IOP iop;
-//
-//  printf("\n\n\n[IOP] Restart!\n");
-//  iop.reset_allocator();
-//
-////  dma_init_globals();
-////  iso_init_globals();
-////  fake_iso_init_globals();
-////  // iso_api
-////  iso_cd_init_globals();
-////  iso_queue_init_globals();
-////  // isocommon
-////  // overlord
-////  ramdisk_init_globals();
-////  // sbank
-////  // soundcommon
-////  srpc_init_globals();
-//  // ssound
-//  // stream
-//
-////  SCE_IOP::PS2_RegisterIOP(&iop);
-////  PS2_RegisterIOP_EE(&iop);
-//  interface.initialization_complete();
-//
-//  printf("[IOP] Wait for OVERLORD to be started...\n");
-//  iop.wait_for_overlord_start_cmd();
-//  if(iop.status == IOP_OVERLORD_INIT) {
-//    printf("[IOP] Run!\n");
-//  } else {
-//    printf("[IOP] shutdown!\n");
-//    return;
-//  }
-//
-//  iop.reset_allocator();
-//
-//  // init
-//#ifdef ENABLE_OVERLORD
-//  start(iop.overlord_argc, iop.overlord_argv);
-//#endif
-//
-//  // unblock the EE, the overlord is set up!
-//  iop.signal_overlord_init_finish();
-//
-//  // IOP Kernel loop
-//  while(!interface.get_want_exit() && !iop.want_exit) {
-//    // the IOP kernel just runs at full blast, so we only run the IOP when the EE is waiting on
-//    the IOP.
-//    // Each time the EE is waiting on the IOP, it will run an iteration of the IOP kernel.
-//    iop.wait_run_iop();
-//    iop.kernel.dispatchAll();
-//  }
-//
-//  // stop all threads in the iop kernel.
-//  // if the threads are not stopped nicely, we will deadlock on trying to destroy the kernel's
-//  condition variables. iop.kernel.shutdown();
-//}
+}