Dropping elemental-forms and swapping out with imgui.

Too much code for such little use. This should simplify porting.

src/xenia/ui/loop.cc

@@ -9,34 +9,15 @@
 
 #include "xenia/ui/loop.h"
 
-#include "el/message_handler.h"
-#include "el/util/metrics.h"
-#include "el/util/timer.h"
 #include "xenia/base/assert.h"
 #include "xenia/base/threading.h"
 
 namespace xe {
 namespace ui {
 
-// The loop designated as being the main loop elemental-forms will use for all
-// activity.
-// TODO(benvanik): refactor elemental-forms to now need a global.
-Loop* elemental_loop_ = nullptr;
-
-Loop* Loop::elemental_loop() { return elemental_loop_; }
-
-void Loop::set_elemental_loop(Loop* loop) {
-  assert_null(elemental_loop_);
-  elemental_loop_ = loop;
-}
-
 Loop::Loop() = default;
 
-Loop::~Loop() {
-  if (this == elemental_loop_) {
-    elemental_loop_ = nullptr;
-  }
-}
+Loop::~Loop() = default;
 
 void Loop::PostSynchronous(std::function<void()> fn) {
   if (is_on_loop_thread()) {
@@ -54,36 +35,3 @@ void Loop::PostSynchronous(std::function<void()> fn) {
 
 }  // namespace ui
 }  // namespace xe
-
-void el::util::RescheduleTimer(uint64_t fire_time) {
-  assert_not_null(xe::ui::elemental_loop_);
-  if (fire_time == el::MessageHandler::kNotSoon) {
-    return;
-  }
-
-  uint64_t now = el::util::GetTimeMS();
-  uint64_t delay_millis = fire_time >= now ? fire_time - now : 0;
-  xe::ui::elemental_loop_->PostDelayed(
-      []() {
-        uint64_t next_fire_time = el::MessageHandler::GetNextMessageFireTime();
-        uint64_t now = el::util::GetTimeMS();
-        if (now < next_fire_time) {
-          // We timed out *before* we were supposed to (the OS is not playing
-          // nice).
-          // Calling ProcessMessages now won't achieve a thing so force a
-          // reschedule
-          // of the platform timer again with the same time.
-          // ReschedulePlatformTimer(next_fire_time, true);
-          return;
-        }
-
-        el::MessageHandler::ProcessMessages();
-
-        // If we still have things to do (because we didn't process all
-        // messages,
-        // or because there are new messages), we need to rescedule, so call
-        // RescheduleTimer.
-        el::util::RescheduleTimer(el::MessageHandler::GetNextMessageFireTime());
-      },
-      delay_millis);
-}