Modularization

6 files changed, 82 insertions, 2 deletions

diff --git a/include/lib/algo/flood_fill.h b/include/lib/algo/flood_fill.h
new file mode 100644
index 0000000..a48f4a1
--- /dev/null
+++ b/include/lib/algo/flood_fill.h
@@ -0,0 +1,20 @@
+#ifndef INC_LIB_ALGO_FLOOD_FILL_H
+#define INC_LIB_ALGO_FLOOD_FILL_H
+
+#include <lib/bool.h>
+#include <lib/color.h>
+#include <stddef.h>
+#include <stdint.h>
+
+//-----------------------------------------------
+// Flood
+// Floods a mask from a given set of image to determine the contiguous regions
+//  1. Check that the (x,y) is within the picture
+//  2. Check if the (x,y) coordinate in the mask is unused
+//  3. Check if the (x,y) coordinate in the image is non-background
+//  4. Check if the (x,y) coordinate in the image is the same color as the fill color
+//  5. If all hold, set the label for the pixel, and check each neighbor
+//     Otherwise, stop flooding
+bool_t flood(uint8_t* image, uint16_t* mask, size_t width, size_t height, size_t channels, size_t x, size_t y, uint8_t* fill_color, uint16_t label);
+
+#endif
diff --git a/include/lib/bool.h b/include/lib/bool.h
new file mode 100644
index 0000000..6bf4c40
--- /dev/null
+++ b/include/lib/bool.h
@@ -0,0 +1,8 @@
+#ifndef INC_LIB_BOOL_H
+#define INC_LIB_BOOL_H
+
+#define bool_t uint8_t
+#define FALSE 0
+#define TRUE 1
+
+#endif
diff --git a/include/lib/color.h b/include/lib/color.h
new file mode 100644
index 0000000..b999510
--- /dev/null
+++ b/include/lib/color.h
@@ -0,0 +1,22 @@
+#ifndef INC_LIB_COLOR_H
+#define INC_LIB_COLOR_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <lib/bool.h>
+
+//-----------------------------------------------
+// Color Equal to Background
+// Background: zeros in RGB, alpha can be whatever
+bool_t color_zero(uint8_t* color1, size_t channels);
+
+//-----------------------------------------------
+// Color Equality
+// Determine if two colors are identical
+bool_t color_equal(uint8_t* color1, uint8_t* color2, size_t channels);
+
+//-----------------------------------------------
+// Print out the `channels` length color vector
+void print_color(uint8_t* color, size_t channels);
+
+#endif
diff --git a/include/lib/dir.h b/include/lib/dir.h
new file mode 100644
index 0000000..6177735
--- /dev/null
+++ b/include/lib/dir.h
@@ -0,0 +1,15 @@
+#ifndef INC_LIB_DIR_H
+#define INC_LIB_DIR_H
+
+#include <lib/lib.h>
+#include <lib/bool.h>
+
+//-----------------------------------------------
+// Is directory
+bool_t is_directory(char* dirname);
+
+//-----------------------------------------------
+// List directory
+char** lsdir(char* dirname);
+
+#endif
diff --git a/include/lib/lib.h b/include/lib/lib.h
index b8db686..8ca17f8 100644
--- a/include/lib/lib.h
+++ b/include/lib/lib.h
@@ -1,8 +1,8 @@
-#include <stdint.h>
-
 #ifndef INC_LIB_LIB_H
 #define INC_LIB_LIB_H
 
+#include <stdint.h>
+
 extern const uint32_t SCREEN_WIDTH;
 extern const uint32_t SCREEN_HEIGHT;
 
diff --git a/include/lib/time.h b/include/lib/time.h
new file mode 100644
index 0000000..aebc6ed
--- /dev/null
+++ b/include/lib/time.h
@@ -0,0 +1,15 @@
+#ifndef INC_LIB_TIME_H
+#define INC_LIB_TIME_H
+
+#include <time.h>
+
+//-----------------------------------------------
+// Difference in Time
+// Compute the difference between timespec structs
+double diff_time(struct timespec *time1, struct timespec *time0);
+
+//-----------------------------------------------
+// Get Current Time
+void get_time(struct timespec *ts);
+
+#endif