bin to array

bin-to-array.py

@@ -0,0 +1,61 @@
+"""
+Use this script to write data files as c arrays. This is used to stay cross-platform for embedding.
+"""
+import argparse
+import os.path
+
+
+def format_hex_line(data):
+    hex_data = ', '.join(f'0x{byte:02x}' for byte in data)
+    return f'    {hex_data},\n'
+
+
+def hexdump_to_cpp_array(file_name: str, output_dir: str, variable_name: str):
+    path = os.path.join(output_dir, variable_name)
+    header_path, source_path = f"{path}.hpp", f"{path}.cpp"
+
+    # Header
+    with open(header_path, 'w') as file:
+        file.write("#pragma once\n\n")
+        file.write("#include <cstddef>\n\n")
+        file.write(f"extern const unsigned char {variable_name}[];\n")
+        file.write(f"extern const size_t {variable_name}_length;\n")
+
+    # Source
+    byte_count = 0
+    with open(file_name, 'rb') as bin_file, open(source_path, 'w') as source_file:
+        source_file.write(f"// This is the bytes of {file_name}\n")
+        source_file.write(f'#include "{variable_name}.hpp"\n\n')
+        source_file.write(f"const unsigned char {variable_name}[] = {{\n")
+        while True:
+            chunk = bin_file.read(16)
+            if not chunk:
+                break
+            byte_count += len(chunk)
+            source_file.write(format_hex_line(chunk))
+        source_file.write("};\n")
+        source_file.write(f"const size_t {variable_name}_length = {byte_count};\n")
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Hexdump a file to a cpp array.")
+    parser.add_argument("file", help="Path to the binary file to be dumped")
+    parser.add_argument("-d", "--dir", help="Output directory", metavar="OUTPUT")
+    parser.add_argument("-n", "--name", help="Name of the array and header/source files", default="data")
+    args = parser.parse_args()
+
+    if args.dir:
+        try:
+            hexdump_to_cpp_array(args.file, args.dir, args.name)
+            path = os.path.join(args.dir, args.name)
+            print(f"Hex dump written to {path}.hpp & {path}.cpp")
+        except FileNotFoundError:
+            print(f"File not found: {args.file}")
+        except IOError as e:
+            print(f"Error: {e}")
+    else:
+        print("No output dir specified. Exiting.")
+
+
+if __name__ == "__main__":
+    main()