split out display code

stage2/include/colors.h

@@ -1,11 +0,0 @@
-#pragma once
-
-// Color definitions
-#define BLACK    0x0000
-#define BLUE     0x001F
-#define RED      0xF800
-#define GREEN    0x07E0
-#define CYAN     0x07FF
-#define MAGENTA  0xF81F
-#define YELLOW   0xFFE0 
-#define WHITE    0xFFFF

stage2/include/display.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <Adafruit_GFX.h>
+#include <Adafruit_ILI9341.h>
+#include <cstdint>
+
+namespace tft {
+
+    // Color definitions
+    constexpr uint16_t  BLACK = 0x0000;
+    constexpr uint16_t  BLUE = 0x001F;
+    constexpr uint16_t  RED = 0xF800;
+    constexpr uint16_t  GREEN = 0x07E0;
+    constexpr uint16_t  CYAN = 0x07FF;
+    constexpr uint16_t  MAGENTA = 0xF81F;
+    constexpr uint16_t  YELLOW = 0xFFE0 ;
+    constexpr uint16_t  WHITE = 0xFFFF;
+    constexpr uint16_t  LIGHT_GREY = 0xDEFB;
+    constexpr uint16_t  FOREGROUND = BLACK;
+    constexpr uint16_t  BACKGROUND = LIGHT_GREY;
+
+    void    Setup();
+    void    Clear();
+    void    SetCursor(int16_t x, int16_t y);
+    void    Println(const char *s);
+}