mirror of https://github.com/encounter/SDL.git
143 lines
4.8 KiB
Python
Executable File
143 lines
4.8 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Script to sort the game controller database entries in SDL_gamecontroller.c
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import re
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filename = "SDL_gamecontrollerdb.h"
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input = open(filename)
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output = open(f"{filename}.new", "w")
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parsing_controllers = False
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controllers = []
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controller_guids = {}
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conditionals = []
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split_pattern = re.compile(r'([^"]*")([^,]*,)([^,]*,)([^"]*)(".*)')
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# BUS (1) CRC (3,2) VID (5,4) (6) PID (8,7) (9) VERSION (11,10) MISC (12)
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standard_guid_pattern = re.compile(r'^([0-9a-fA-F]{4})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})(0000)([0-9a-fA-F]{2})([0-9a-fA-F]{2})(0000)([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{4},)$')
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# These chipsets are used in multiple controllers with different mappings,
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# without enough unique information to differentiate them. e.g.
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# https://github.com/gabomdq/SDL_GameControllerDB/issues/202
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invalid_controllers = (
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('0079', '0006', '0000'), # DragonRise Inc. Generic USB Joystick
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('0079', '0006', '6120'), # DragonRise Inc. Generic USB Joystick
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)
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def find_element(prefix, bindings):
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i=0
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for element in bindings:
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if element.startswith(prefix):
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return i
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i=(i + 1)
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return -1
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def save_controller(line):
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global controllers
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match = split_pattern.match(line)
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entry = [ match.group(1), match.group(2), match.group(3) ]
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bindings = sorted(match.group(4).split(","))
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if (bindings[0] == ""):
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bindings.pop(0)
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name = entry[2].rstrip(',')
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crc = ""
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pos = find_element("crc:", bindings)
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if pos >= 0:
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crc = bindings[pos] + ","
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bindings.pop(pos)
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guid_match = standard_guid_pattern.match(entry[1])
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if guid_match:
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groups = guid_match.groups()
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crc_value = groups[2] + groups[1]
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vid_value = groups[4] + groups[3]
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pid_value = groups[7] + groups[6]
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version_value = groups[10] + groups[9]
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#print("CRC: %s, VID: %s, PID: %s, VERSION: %s" % (crc_value, vid_value, pid_value, version_value))
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if crc_value == "0000":
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if crc != "":
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crc_value = crc[4:-1]
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else:
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print("Extracting CRC from GUID of " + name)
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entry[1] = groups[0] + "0000" + "".join(groups[3:])
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crc = "crc:" + crc_value + ","
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if (vid_value, pid_value, crc_value) in invalid_controllers:
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print("Controller '%s' not unique, skipping" % name)
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return
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pos = find_element("sdk", bindings)
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if pos >= 0:
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bindings.append(bindings.pop(pos))
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pos = find_element("hint:", bindings)
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if pos >= 0:
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bindings.append(bindings.pop(pos))
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entry.extend(crc)
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entry.extend(",".join(bindings) + ",")
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entry.append(match.group(5))
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controllers.append(entry)
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entry_id = entry[1] + entry[3]
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if ',sdk' in line or ',hint:' in line:
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conditionals.append(entry_id)
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def write_controllers():
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global controllers
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global controller_guids
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# Check for duplicates
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for entry in controllers:
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entry_id = entry[1] + entry[3]
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if (entry_id in controller_guids and entry_id not in conditionals):
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current_name = entry[2]
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existing_name = controller_guids[entry_id][2]
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print("Warning: entry '%s' is duplicate of entry '%s'" % (current_name, existing_name))
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if (not current_name.startswith("(DUPE)")):
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entry[2] = f"(DUPE) {current_name}"
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if (not existing_name.startswith("(DUPE)")):
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controller_guids[entry_id][2] = f"(DUPE) {existing_name}"
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controller_guids[entry_id] = entry
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for entry in sorted(controllers, key=lambda entry: f"{entry[2]}-{entry[1]}"):
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line = "".join(entry) + "\n"
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line = line.replace("\t", " ")
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if not line.endswith(",\n") and not line.endswith("*/\n") and not line.endswith(",\r\n") and not line.endswith("*/\r\n"):
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print("Warning: '%s' is missing a comma at the end of the line" % (line))
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output.write(line)
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controllers = []
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controller_guids = {}
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for line in input:
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if parsing_controllers:
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if (line.startswith("{")):
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output.write(line)
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elif (line.startswith(" NULL")):
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parsing_controllers = False
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write_controllers()
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output.write(line)
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elif (line.startswith("#if")):
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print(f"Parsing {line.strip()}")
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output.write(line)
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elif (line.startswith("#endif")):
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write_controllers()
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output.write(line)
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else:
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save_controller(line)
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else:
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if (line.startswith("static const char *")):
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parsing_controllers = True
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output.write(line)
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output.close()
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print(f"Finished writing {filename}.new")
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