Added 16-bit welcome screen bitmap functionality.

src/draw.c

@@ -0,0 +1,22 @@
+#include<stdlib.c>
+#include<stdint.c>
+
+#define BYTES_PER_PIXEL 2
+
+uint16_t bitmap_draw(   unsigned int width, unsigned int height,
+                        unsigned int bytes_per_pixel,
+                        unsigned char *pixel_data){
+    
+    if(bytes_per_pixel != BYTES_PER_PIXEL){
+        return -1
+    }
+
+    SSD1963_SetArea(0, 0, width - 1, height - 1);
+    SSD1963_WriteCommand(CMD_WR_MEMSTART);
+
+    for(int i = 0; i < width * height; i++){
+        SSD193_WriteData(((uint16_t*)pixel_data)[i]);
+    }
+
+    return 0;
+}

src/draw.h

@@ -0,0 +1,17 @@
+#ifndef DRAW_H
+#define DRAW_H
+
+/**
+ * @brief       Draw bitmap
+ *
+ * @param       width               Bitmap width
+ * @param       height              Bitmap height
+ * @param       bytes_per_pixel     Bytes per pixel
+ * @param       color               16-Bit color bitmap
+ * @param       *pixel_data         uint16_t Bitmap data array 
+ * @return      -1 if error 0 else
+ *
+ */
+uint16_t bitmap_draw(   unsigned int width, unsigned int height, unsigned int bytes_per_pixel, unsigned char *pixel_data);
+
+#endif /* DRAW_H */