first commit

kernel/src/rt.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <stdint.h>
+
+typedef struct _rt_ctx {
+  // A pointer to the framebuffer.
+  void *framebuffer;
+
+  // The framebuffer width, in pixels.
+  uint32_t framebuffer_width;
+
+  // The framebuffer height, in pixels.
+  uint32_t framebuffer_height;
+
+  // Set this to 1 if you prefer using DOS line endings to UNIX line endings.
+  int use_crlf_ending;
+
+  // Do we need to show a cursor after printing text?
+  int show_cursor;
+
+  // The background color
+  uint32_t bg_color;
+
+  // The foreground color
+  uint32_t fg_color;
+
+  /*
+   * Do NOT modify everything below me!
+   */
+  // The terminal's width, in columns of 8 pixels.
+  int term_width;
+  // The terminal's height, in rows of 16 pixels.
+  int term_height;
+  // The X position of the cursor, in columns of 8 pixels.
+  int x;
+  // The Y position of the cursor, in rows of 16 pixels.
+  int y;
+} rt_context;
+
+void rt_init(rt_context ctx);
+void rt_print(char *str);