feat(glsl2c.py): add xxd -i like program

glsl2c.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+import sys
+from pathlib import Path
+
+if len(sys.argv) != 3 or not sys.argv[1].endswith((".glsl", ".vert", ".frag")):
+    sys.exit(1)
+
+src = Path(sys.argv[1])
+dst = Path(sys.argv[2])
+
+# variable name
+varname = src.replace("/", "_").replace(".", "_")
+
+# read to binary mode
+content = src.read_bytes()
+
+line = 12
+
+with open(dst, "wb") as f:
+    # content array
+    f.write(f"unsigned char {varname}[] = {{\n")
+    
+    for i, byte in enumerate(content):
+        # tab
+        if i % line == 0:
+            f.write("\t")
+        # hexa
+        f.write(f"0x{byte:02x}, ")
+        
+        # LF/CRLF
+        if (i + 1) % line == 0:
+            f.write("\n")
+    
+    # content size
+    f.write(f"unsigned int {varname}_len = {len(content)};")