add doxygen comments

draw_shapes.c

@@ -1,14 +1,13 @@
-/*******************************************************************
-  Program to draw simple shapes to frame buffer on MicroZed
-  based MZ_APO board designed by Petr Porazil at PiKRON
-
-  draw_shapes.c      - simple program to draw shapes
-
-  (C) Copyright 2021 by Lukas Nejezchleb
-      e-mail:   nejezluk@fel.cvut.cz
-      license:  any combination of GPL, LGPL, MPL or BSD licenses
-
- *******************************************************************/
+/**
+ * @file draw_shapes.c
+ * @author Lukas Nejezchleb (nejezluk@fel.cvut.cz)
+ * @brief Module with functions to draw shapes to the frame buffer
+ * @version 0.1
+ * @date 2021-05-04
+ * 
+ * @copyright Copyright (c) 2021
+ * 
+ */
 
 #include "draw_shapes.h"
 #include <stdlib.h>
@@ -64,9 +63,9 @@ void set_background(fb_data *frame, uint16_t color)
 
 void draw_ghost_shape(fb_data *frame, int x, int y, int scale, uint16_t color)
 {
-    //offset x and y so the ghost would be centered around
-    x = x - scale * 4; //4 is half of bitsize of uint8_t
-    y = y - scale * 4; //4 is half of height of ghost bitmap
+    // offset x and y so the ghost would be centered around
+    x = x - scale * 4; // 4 is half of bitsize of uint8_t
+    y = y - scale * 4; // 4 is half of height of ghost bitmap
     uint8_t ghost_bitmap[] = {0x3c, 0x7e, 0x7e, 0xdb, 0xff, 0xff, 0xff, 0xdb};
     /*
       xxxx   

draw_shapes.h

@@ -1,39 +1,69 @@
-/*******************************************************************
-  Program to draw simple shapes to frame buffer on MicroZed
-  based MZ_APO board designed by Petr Porazil at PiKRON
-
-  draw_shapes.h      - simple program to draw shapes
-
-  (C) Copyright 2021 by Lukas Nejezchleb
-      e-mail:   nejezluk@fel.cvut.cz
-      license:  any combination of GPL, LGPL, MPL or BSD licenses
-
- *******************************************************************/
+/**
+ * @file draw_shapes.h
+ * @author Lukas Nejezchleb (nejezluk@fel.cvut.cz)
+ * @brief Module with functions to draw shapes to the frame buffer
+ * @version 0.1
+ * @date 2021-05-04
+ * 
+ * @copyright Copyright (c) 2021
+ * 
+ */
 
 #ifndef DRAW_SHAPES_H
 #define DRAW_SHAPES_H
 #include "data_structures.h"
 
 /**
- * function to draw circle to fb_data frame at x,y with radius and color
+ * @brief Draws the circle with center at x,y with given radius
+ * 
+ * @param frame 
+ * @param x 
+ * @param y 
+ * @param radius 
+ * @param color 
  */
 void draw_circle(fb_data *frame, int x, int y, int radius, uint16_t color);
 
 /**
- * function to draw rectangle to fb_data frame at x,y with width and height and color
+ * @brief Draws rectangle with left upper corner at x,y
+ * 
+ * @param frame 
+ * @param x 
+ * @param y 
+ * @param width 
+ * @param height 
+ * @param color 
  */
 void draw_rectangle(fb_data *frame, int x, int y, int width, int height, uint16_t color);
 
 /**
- * sets background to certain color
+ * @brief Draws given colour across the whole frame buffer
+ * 
+ * @param frame 
+ * @param color 
  */
 void set_background(fb_data *frame, uint16_t color);
 
 /**
- * draws the ghost shape to fb 
+ * @brief Draws an ghost at x,y, bitmap of ghost is also in this function
+ * 
+ * @param frame 
+ * @param x 
+ * @param y 
+ * @param scale 
+ * @param color 
  */
 void draw_ghost_shape(fb_data *frame, int x, int y, int scale, uint16_t color);
 
-
+/**
+ * @brief Pacman facing given direction with his mouth
+ * 
+ * @param frame 
+ * @param x 
+ * @param y 
+ * @param radius 
+ * @param color 
+ * @param direction 
+ */
 void draw_pacman_dir(fb_data *frame, int x, int y, int radius, uint16_t color, int direction);
 #endif