updated version

src/main.c

@@ -1,81 +1,65 @@
-#include "renderer.h"
+#include "String.h"
 #include "color.h"
 #include "font_pack.h"
 #include "io.h"
-#include "String.h"
+#include "renderer.h"
 
-static void delay_1s(void)
-{
-    volatile unsigned long count = 80000000; // Example for ~1 sec at ~80 MHz CPU
-    while (count--)
-    {
-        __asm__ volatile("nop");
-    }
+static void delay_1s(void) {
+  volatile unsigned long count = 80000000; // Example for ~1 sec at ~80 MHz CPU
+  while (count--) {
+    __asm__ volatile("nop");
+  }
 }
 
-void delay_seconds(unsigned int seconds)
-{
-    for (unsigned int i = 0; i < seconds; i++)
-    {
-        delay_1s();
-    }
+void delay_seconds(unsigned int seconds) {
+  for (unsigned int i = 0; i < seconds; i++) {
+    delay_1s();
+  }
 }
 
-int kernel_main(void)
-{
-    String str;
-    cs_init(&str);
-    cs_set(&str, "HELLO MARIO");
-    uart_io.puts("Initializing renderer...\n");
+int kernel_main(void) {
+  String str;
+  cs_init(&str);
+  cs_set(&str, "HELLO MARIO");
+  uart_io.puts("Initializing renderer...\n");
 
-    Renderer renderer;
-    if (!renderer_init(&renderer))
-    {
-        uart_io.puts("Failed to allocate framebuffer.\n");
-        while (1)
-            ;
+  Renderer renderer;
+  if (!renderer_init(&renderer)) {
+    uart_io.puts("Failed to allocate framebuffer.\n");
+    while (1)
+      ;
+  }
+
+  uart_io.puts("Framebuffer allocated.\n");
+
+  RenderObject background = {0, 0, renderer.width, renderer.height, COLOR_RED};
+
+  while (1) {
+    // Non-blocking UART input
+    char c = uart_getc_nonblocking();
+
+    if (c >= 32 && c <= 126) { // printable
+      cs_append_char(&str, c);
+    } else if (c == '\b' || c == 127) { // backspace
+      if (str.length > 0) {
+        str.length--;
+        str.buffer[str.length] = '\0';
+      }
     }
 
-    uart_io.puts("Framebuffer allocated.\n");
-    uart_io.puts("Width: ");
-    uart_io.print_int(renderer.width);
-    uart_io.puts("\nHeight: ");
-    uart_io.print_int(renderer.height);
-    uart_io.putc('\n');
-
-    RenderObject background = {0, 0, renderer.width, renderer.height, COLOR_RED};
+    // Create a fresh RenderText each loop
     RenderText text = {
-        .base = {
-            .x = 20,
-            .y = 30,
-            .color = 0xFFFFFFFF},
+        .base = {.x = 20, .y = 30, .color = 0xFFFFFFFF},
         .text = str.buffer,
         .font = &basic_font_pack,
     };
 
-    while (1)
-    {
-        renderer.clear_screen(&renderer, background.color);
-        renderer.draw_text(&renderer, &text);
+    renderer.clear_screen(&renderer, background.color);
+    renderer.draw_text(&renderer, &text);
 
-        char c = uart_getc();
+    // uart_puts(str.buffer);
 
-        if (c >= 32 && c <= 126) // Printable ASCII
-        {
-            cs_append_char(&str, c);
-        }
-        else if (c == '\b' || c == 127) // Backspace support
-        {
-            if (str.length > 0)
-            {
-                str.length--;
-                str.buffer[str.length] = '\0';
-            }
-        }
-
-        uart_puts(str.buffer);
-        renderer.draw_text(&renderer, &text);
-
-        delay_seconds(4);
-    }
+    // Short delay for smoother typingi
+    delay_seconds(1);
+  }
 }