fix

core.cm

@@ -13,6 +13,7 @@
 var video = use('sdl3/video')
 var events = use('sdl3/input')
 var time_mod = use('time')
+var debug_imgui = use('debug_imgui')
 
 var core = {}
 
@@ -48,7 +49,7 @@ core.start = function(config) {
   
   _window = _backend.get_window()
   
-  if (config.imgui && imgui.init) {
+  if ((config.imgui || config.editor) && imgui.init) {
     imgui.init(_window, _backend.get_device())
   }
   
@@ -75,12 +76,19 @@ core.window_size = function() {
 core.backend = function() {
   return _backend
 }
+// FPS tracking
+var _fps_samples = []
+var _fps_sample_count = 60
+var _current_fps = 0
+var _frame_time_ms = 0
 
 // Main loop
 function _main_loop() {
+  var frame_start = time_mod.number()
+  
   if (!_running) return
   
-  var now = time_mod.number()
+  var now = frame_start
   var dt = now - _last_time
   _last_time = now
   
@@ -90,7 +98,7 @@ function _main_loop() {
   var win_size = _backend.get_window_size()
   
   for (var ev of evts) {
-    if (_config.imgui) {
+    if (_config.imgui || _config.editor) {
       imgui.process_event(ev)
     }
 
@@ -117,9 +125,12 @@ function _main_loop() {
     _config.update(dt)
   }
 
+  var imgui_mod = use('imgui')
+  var debug_imgui = use('debug_imgui')
+  
   // ImGui Frame
-  if (_config.imgui) {
-    imgui.newframe()
+  if (_config.imgui || _config.editor) {
+    imgui_mod.newframe()
   }
 
   // Render
@@ -133,12 +144,24 @@ function _main_loop() {
       }
       var dbg = _config.debug == 'cmd'
       
+      // Build stats for debug_imgui
+      var stats = {
+        fps: _current_fps,
+        frame_time_ms: _frame_time_ms
+      }
+      
       // Handle both compositor result ({commands: [...]}) and fx_graph (graph object)
       if (render_result.commands) {
-        if (_config.imgui) {
+        if (_config.imgui || _config.editor) {
           render_result.commands.push({
             cmd: 'imgui',
-            draw: _config.imgui,
+            draw: function(ui) {
+              if (_config.imgui) _config.imgui(ui)
+              if (_config.editor) {
+                debug_imgui.render(ui, null, render_result.plan, stats)
+                _config.editor(ui)
+              }
+            },
             target: 'screen'
           })
         }
@@ -156,9 +179,26 @@ function _main_loop() {
     }
   }
   
+  // Measure actual frame work time (excluding delay)
+  var frame_end = time_mod.number()
+  var actual_frame_time = frame_end - frame_start
+  
+  // Track FPS based on actual work time
+  _frame_time_ms = actual_frame_time * 1000
+  _fps_samples.push(actual_frame_time)
+  if (_fps_samples.length > _fps_sample_count) {
+    _fps_samples.shift()
+  }
+  var avg_frame_time = 0
+  for (var i = 0; i < _fps_samples.length; i++) {
+    avg_frame_time += _fps_samples[i]
+  }
+  avg_frame_time = avg_frame_time / _fps_samples.length
+  _current_fps = avg_frame_time > 0 ? 1 / avg_frame_time : 0
+  
   // Schedule next frame
   var frame_time = 1 / _framerate
-  var elapsed = time_mod.number() - now
+  var elapsed = frame_end - frame_start
   var delay = frame_time - elapsed
   if (delay < 0) delay = 0