From 31fbcb41a5bdc6688432fd6692a24cd98103ecac Mon Sep 17 00:00:00 2001
From: Ryzee119 <wendland@live.com.au>
Date: Sun, 29 Oct 2023 13:41:05 +1030
Subject: [PATCH] debug: Create debug info box

---
 Makefile.nxdk    |  1 +
 src/dash_debug.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/dash_debug.h | 20 +++++++++++
 src/lithiumx.h   |  1 +
 4 files changed, 114 insertions(+)
 create mode 100644 src/dash_debug.c
 create mode 100644 src/dash_debug.h

diff --git a/Makefile.nxdk b/Makefile.nxdk
index db443f3..c2516dc 100644
--- a/Makefile.nxdk
+++ b/Makefile.nxdk
@@ -20,6 +20,7 @@ SRCS += \
     $(CURDIR)/src/dash_synop.c \
     $(CURDIR)/src/dash_browser.c \
     $(CURDIR)/src/dash_launcher.c \
+    $(CURDIR)/src/dash_debug.c \
     $(CURDIR)/src/main.c \
     $(CURDIR)/src/lvgl_widgets/confirmbox.c \
     $(CURDIR)/src/lvgl_widgets/generic_container.c \
diff --git a/src/dash_debug.c b/src/dash_debug.c
new file mode 100644
index 0000000..373d250
--- /dev/null
+++ b/src/dash_debug.c
@@ -0,0 +1,92 @@
+#include <lithiumx.h>
+
+static bool debug_info_visible = false;
+static SDL_Thread *debug_info_thread;
+
+#ifdef NXDK
+static void get_ram_usage(uint32_t *mem_size, uint32_t *mem_used)
+{
+    MM_STATISTICS MemoryStatistics;
+    MemoryStatistics.Length = sizeof(MM_STATISTICS);
+    MmQueryStatistics(&MemoryStatistics);
+    *mem_size = (MemoryStatistics.TotalPhysicalPages * PAGE_SIZE) / 1024U / 1024U;
+    *mem_used = *mem_size - ((MemoryStatistics.AvailablePages * PAGE_SIZE) / 1024U / 1024U);
+    return;
+}
+#else
+static void get_ram_usage(uint32_t *mem_size, uint32_t *mem_used)
+{
+    *mem_size = 0;
+    *mem_used = 0;
+}
+#endif
+
+static void frame_count_incrememt(lv_timer_t *t)
+{
+    uint32_t *frame_count = t->user_data;
+    *frame_count = *frame_count + 1;
+}
+
+static int debug_info_thread_f(void *param)
+{
+    lvgl_getlock();
+    lv_obj_t *mem_usage_label = lv_label_create(lv_layer_sys());
+    lv_obj_set_style_bg_opa(mem_usage_label, LV_OPA_50, 0);
+    lv_obj_set_align(mem_usage_label, LV_ALIGN_BOTTOM_RIGHT);
+    lv_obj_set_style_text_font(mem_usage_label, &lv_font_montserrat_16, LV_PART_MAIN);
+    lvgl_removelock();
+
+    uint32_t frame_count = 0, used, capacity, fps = 0, start = lv_tick_get(), ram_used, ram_total;
+    lv_timer_t *frame_counter = lv_timer_create(frame_count_incrememt, 0, &frame_count);
+
+    while (1)
+    {
+        if (debug_info_visible == false)
+        {
+            break;
+        }
+        if (frame_count > 100)
+        {
+
+            fps = 1000 * frame_count / lv_tick_elaps(start);
+            if (1000 / fps < LV_DISP_DEF_REFR_PERIOD)
+                fps = 1000 / LV_DISP_DEF_REFR_PERIOD;
+            start = lv_tick_get();
+            frame_count = 0;
+        }
+        lx_mem_usage(&used, &capacity);
+        get_ram_usage(&ram_total, &ram_used);
+        lvgl_getlock();
+        lv_label_set_text_fmt(mem_usage_label, "GUI:%d/%dkB\n"
+                                               "CPU: %d%%\n"
+                                               "RAM:%d/%d MB\n"
+                                               "FPS: %d",
+                              used / 1024, capacity / 1024, 100 - lv_timer_get_idle(), ram_used, ram_total, fps);
+
+        lv_obj_update_layout(mem_usage_label);
+        lv_obj_set_size(mem_usage_label, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
+        lvgl_removelock();
+        for (int i = 0; i < 50; i++)
+        {
+            SDL_Delay(10);
+            if (debug_info_visible == false)
+                break;
+        }
+    }
+
+    lv_timer_del(frame_counter);
+    lv_obj_del(mem_usage_label);
+    return 0;
+}
+
+void dash_debug_open()
+{
+    debug_info_visible = true;
+    debug_info_thread = SDL_CreateThread(debug_info_thread_f, "update_mem_usage", NULL);
+}
+
+void dash_debug_close()
+{
+    debug_info_visible = false;
+    SDL_WaitThread(debug_info_thread, NULL);
+}
diff --git a/src/dash_debug.h b/src/dash_debug.h
new file mode 100644
index 0000000..435484f
--- /dev/null
+++ b/src/dash_debug.h
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: MIT
+// SPDX-FileCopyrightText: 2022 Ryzee119
+
+#ifndef _DASH_DEBUG_H
+#define _DASH_DEBUG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "lithiumx.h"
+
+void dash_debug_open();
+void dash_debug_close();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
\ No newline at end of file
diff --git a/src/lithiumx.h b/src/lithiumx.h
index a12e75b..d14db2b 100644
--- a/src/lithiumx.h
+++ b/src/lithiumx.h
@@ -31,6 +31,7 @@ int strcasecmp(const char *s1, const char *s2);
 #include "dash_synop.h"
 #include "dash_browser.h"
 #include "dash_launcher.h"
+#include "dash_debug.h"
 
 #include "lvgl_drivers/lv_port_disp.h"
 #include "lvgl_drivers/lv_port_indev.h"