1 files changed, 39 insertions, 0 deletions
diff --git a/src/lib/color.c b/src/lib/color.c
new file mode 100644
index 0000000..035a3e9
--- /dev/null
+++ b/src/lib/color.c
@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <lib/color.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) {
+  for (size_t idx = 0; idx < channels; idx++) {
+    if (idx == 3) {
+      break;
+    }
+    if (color1[idx] != 0) {
+      return FALSE;
+    }
+  }
+  return TRUE;
+}
+
+//-----------------------------------------------
+// Color Equality
+// Determine if two colors are identical
+bool_t color_equal(uint8_t* color1, uint8_t* color2, size_t channels) {
+  for (size_t idx = 0; idx < channels; idx++) {
+    if (color1[idx] != color2[idx]) {
+      return FALSE;
+    }
+  }
+  return TRUE;
+}
+
+//-----------------------------------------------
+// Print out the `channels` length color vector
+void print_color(uint8_t* color, size_t channels) {
+  for (size_t index = 0; index < channels; index++) {
+    printf("%hhu ", color[index]);
+  }
+  printf("\n");
+}