vulkan/shaders: manually indent bin2array

Looks much nicer with some semblance of code formatting

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1338>

diff --git a/ext/vulkan/shaders/bin2array.py b/ext/vulkan/shaders/bin2array.py
index 16462671b35ab5423724b7baf0aeb52fef466346..d47bbf5f940dd63b81a7f818026180a5c9604952 100755 (executable)
--- a/ext/vulkan/shaders/bin2array.py
+++ b/ext/vulkan/shaders/bin2array.py
@@ -9,16 +9,25 @@ autogenerated_notice = """/*
  */
 """
 
-def make_sublist_group(lst: list, grp: int) -> list:
+def make_sublist_group (lst: list, grp: int) -> list:
     """
     Group list elements into sublists.
     make_sublist_group([1, 2, 3, 4, 5, 6, 7], 3) = [[1, 2, 3], [4, 5, 6], 7]
     """
     return [lst[i:i+grp] for i in range(0, len(lst), grp)]
 
-def generate_c_array_data(bindata: bytes, element_prefix: str, element_size: int, element_suffix: str, newline_value: str, newline_after: int, element_separator: str):
+def generate_c_array_data (bindata: bytes,
+                           element_prefix: str,
+                           element_size: int,
+                           element_suffix: str,
+                           newline_value: str,
+                           newline_after: int,
+                           element_separator: str) -> str:
     """
-    Generate the contents of a C array
+    Generate the contents of a C array as a hex string
+    e.g:
+    0x10, 0x20, 0x30, 0x40,
+    0x50, 0x60, 0x70, 0x80,
     """
     hexstr = binascii.hexlify(bindata).decode("UTF-8")
     array = []
@@ -32,7 +41,13 @@ def generate_c_array_data(bindata: bytes, element_prefix: str, element_size: int
 
     return newline_value.join([element_separator.join(e) + element_separator for e in array])
 
-def decorate_c_array_data (hexdata: str, var_name: str, var_type: str, newline_value: str):
+def decorate_c_array_data (hexdata: str,
+                           var_name: str,
+                           var_type: str,
+                           newline_value: str):
+    """
+    Place @hexdata into a valid C array named @var_name of C type @var_type.
+    """
     ret = var_type + " " + var_name + "[] = {" + newline_value
     ret += hexdata + newline_value
     ret += "};" + newline_value
@@ -61,12 +76,26 @@ def main(args):
     assert len(file_content) % args.element_size == 0
 
     # get a relative path from the source file to the header to use in an #include
-    source_to_header = os.path.relpath (os.path.dirname(args.header_output), os.path.dirname (args.output))
+    source_to_header = os.path.relpath (os.path.dirname (args.header_output),
+                                        os.path.dirname (args.output))
 
     ret = autogenerated_notice
-    ret += "#include \"" + os.path.join (source_to_header, os.path.basename (args.header_output)) + "\"" + args.linebreak_value
+    ret += "#include \""
+    ret += os.path.join (source_to_header,
+                         os.path.basename (args.header_output))
+    ret += "\"" + args.linebreak_value
 
-    ret += decorate_c_array_data (generate_c_array_data (file_content, args.element_prefix, args.element_size, args.element_suffix, args.linebreak_value, args.linebreak, args.separator), args.array_name, args.element_type, args.linebreak_value)
+    arr_data = generate_c_array_data (file_content,
+                                      args.element_prefix,
+                                      args.element_size,
+                                      args.element_suffix,
+                                      args.linebreak_value,
+                                      args.linebreak,
+                                      args.separator)
+    ret += decorate_c_array_data (arr_data,
+                                  args.array_name,
+                                  args.element_type,
+                                  args.linebreak_value)
 
     with open (args.output, 'w') as f:
         f.write (ret)