FPS logging etc

ThomasFarstrike · ThomasFarstrike · commit ae7627a0ab0d · 2026-03-09T21:25:49.000+01:00
diff --git a/c_mpos/mpong/mpong.c b/c_mpos/mpong/mpong.c
@@ -15,6 +15,9 @@ int g_ball_y;
 int g_ball_vx;
 int g_ball_vy;
 
+uint32_t g_fps_last_ms;
+uint32_t g_fps_frames;
+
 #define BRICK_ROWS 4
 #define BRICK_COLS 8
 uint8_t g_bricks[BRICK_ROWS][BRICK_COLS];
@@ -37,6 +40,13 @@ static mp_obj_t readfile(mp_obj_t filename_obj) {
 }
 static MP_DEFINE_CONST_FUN_OBJ_1(readfile_obj, readfile);
 
+static uint32_t ticks_ms(void) {
+    mp_obj_t time_mod = mp_import_name(MP_QSTR_time, mp_const_none, MP_OBJ_NEW_SMALL_INT(0));
+    mp_obj_t ticks_fun = mp_load_attr(time_mod, MP_QSTR_ticks_ms);
+    mp_obj_t ticks_val = mp_call_function_n_kw(ticks_fun, 0, 0, NULL);
+    return (uint32_t)mp_obj_get_int(ticks_val);
+}
+
 static inline int clamp_int(int value, int min_value, int max_value) {
     if (value < min_value) {
         return min_value;
@@ -111,6 +121,9 @@ static mp_obj_t init(mp_obj_t framebuffer_obj, mp_obj_t width_obj, mp_obj_t heig
     reset_ball();
     reset_bricks();
 
+    g_fps_last_ms = ticks_ms();
+    g_fps_frames = 0;
+
     return mp_const_none;
 }
 static MP_DEFINE_CONST_FUN_OBJ_3(init_obj, init);
@@ -128,6 +141,16 @@ static mp_obj_t render(void) {
     // Clear to black.
     for (size_t i = 0; i < fill_pixels; i++) { g_framebuffer[i] = 0x0000; } // RGB565 black
 
+    g_fps_frames++;
+    const uint32_t now_ms = ticks_ms();
+    const uint32_t elapsed_ms = now_ms - g_fps_last_ms;
+    if (elapsed_ms >= 1000) {
+        const uint32_t fps = (g_fps_frames * 1000) / elapsed_ms;
+        mp_printf(&mp_plat_print, "mpong fps: %lu\n", (unsigned long)fps);
+        g_fps_last_ms = now_ms;
+        g_fps_frames = 0;
+    }
+
     // Update ball position.
     g_ball_x += g_ball_vx;
     g_ball_y += g_ball_vy;
diff --git a/internal_filesystem/apps/com.micropythonos.mpong/assets/mpong.py b/internal_filesystem/apps/com.micropythonos.mpong/assets/mpong.py
@@ -1,11 +1,6 @@
 import lvgl as lv
 from mpos import Activity, DisplayMetrics, InputManager
 
-indev_error_x = 160
-indev_error_y = 120
-
-DARKPINK = lv.color_hex(0xEC048C)
-
 import sys
 if sys.platform == "esp32":
     import mpong_xtensawin as mpong
@@ -70,7 +65,7 @@ def onCreate(self):
     def onResume(self, screen):
         lv.log_register_print_cb(self.log_callback)
         mpong.init(self.buffer, self.hor_res, self.ver_res)
-        self.refresh_timer = lv.timer_create(self.run_mpong, 1, None)
+        self.refresh_timer = lv.timer_create(self.run_mpong, 15, None)
 
     def onPause(self, screen):
         if self.refresh_timer:
@@ -91,18 +86,21 @@ def move_right_unfocus(self):
         self.unfocus()
         mpong.move_paddle(self.paddle_move_step)
 
+    # This only works with the PREV/pageup and NEXT/pagedown buttons,
+    # because the focus_direction handling of the arrow keys uses a trick to move focus (focus_next)
+    # which conflicts with the focus_next below...
     def unfocus(self):
         focusgroup = lv.group_get_default()
         if not focusgroup:
             print("WARNING: imageview.py could not get default focus group")
             return
         focused = focusgroup.get_focused()
         if focused:
-            print(f"got focus button: {focused}")
+            #print(f"got focus button: {focused}")
             label = focused.get_child(0)
-            print(f"got label for button: {label.get_text()}")
+            #print(f"got label for button: {label.get_text()}")
             #focused.remove_state(lv.STATE.FOCUSED) # this doesn't seem to work to remove focus
-            print("checking which button is focused")
+            #print("checking which button is focused")
             if focused == self.rightbutton:
                 #print("next is focused")
                 focusgroup.focus_prev()
