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dk_patch.py
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"""
ooooooooo oooo oooo o ooooooooooo ooooooooooo
888 88o 888 o88 888 888 888
888 888 888888 8 88 888ooo8 888ooo8
888 888 888 88o 8oooo88 888 888
o888ooo88 o888o o888o o88o o888o o888o o888ooo8888
by Jon Wilson (10yard)
Generate roms from .ips patch files
-----------------------------------
"""
import os
from ips_util import Patch
from glob import glob
from pathlib import Path
import shutil
import hashlib
import zipfile
from dk_config import ROM_DIR, PATCH_DIR, DKONG_ZIP, DKONGJR_ZIP, DKONG3_ZIP, DKONG_MD5, FIX_MD5, ARCH, DISPLAY
from dk_system import is_pi, copy
def validate_rom():
"""Validate MD5 matches the expected value"""
if os.path.exists(DKONG_ZIP):
buffer = open(DKONG_ZIP, 'rb').read()
md5 = hashlib.md5(buffer).hexdigest()
if md5 == DKONG_MD5:
# ZIP is verified
return True
elif md5 in FIX_MD5:
# ZIP has a recognised MD5 and can be converted using a "fix" patch file
alt_zip = os.path.join(ROM_DIR, f"dkong_{md5}.zip")
shutil.copy(DKONG_ZIP, alt_zip)
if os.path.exists(alt_zip):
# Read the alternative ZIP binary
with open(alt_zip, 'rb') as f_in:
alt_binary = f_in.read()
ips = os.path.join(PATCH_DIR, f"fix_{md5}.ips")
if os.path.exists(ips):
# Apply patch and write the fixed DKONG.ZIP to roms
patch = Patch.load(ips)
with open(DKONG_ZIP, 'w+b') as f_out:
f_out.write(patch.apply(alt_binary))
return True
return False
else:
# ZIP not recognised - a patch file was not found.
return False
# 09/06/2024 Removed last resort code. Trying to patch an unrecognisd ZIP is most likely going to fail
## Last resort. Check the ZIP contains all the required files
#z = zipfile.ZipFile(DKONG_ZIP)
#for filename in ROM_CONTENTS:
# if filename not in z.namelist():
# return False
#return True
else:
# No rom file so a verification error is not returned
return True
def apply_patches_and_addons():
applied_patches_list = []
addons = install_addons()
if is_pi():
# Look for DK roms on the /boot partition of Pi when not found in the roms folder
# User may not have provided them at install time
for rom in DKONG_ZIP, DKONGJR_ZIP, DKONG3_ZIP:
if not os.path.exists(rom) and os.path.exists(f'/boot/{os.path.basename(rom)}'):
copy(f'/boot/{os.path.basename(rom)}', ROM_DIR)
if not os.path.exists(rom) and os.path.exists(f'/boot/dkafe_bin/{os.path.basename(rom)}'):
copy(f'/boot/dkafe_bin/{os.path.basename(rom)}', ROM_DIR)
if os.path.exists(DKONG_ZIP):
# Proceed with the patching (ignoring the fix files)
ips_files = glob(os.path.join(PATCH_DIR, "[!fix_]*.ips"))
if ips_files:
# Read the original ZIP binary
with open(DKONG_ZIP, 'rb') as f_in:
dkong_binary = f_in.read()
# Apply patch and write the resulting hack to a subfolder
for ips in ips_files:
name = os.path.splitext(os.path.basename(ips))[0]
subfolder = os.path.join(ROM_DIR, name)
if not os.path.exists(subfolder):
if name.startswith("dkongjr"):
if os.path.exists(DKONGJR_ZIP):
# Copying DK Junior plugin hacks to subfolder. No patching - IPS is empty.
os.mkdir(subfolder)
shutil.copy(DKONGJR_ZIP, os.path.join(ROM_DIR, subfolder))
applied_patches_list.append(name)
else:
# Patching DK rom and writing to subfolder
os.mkdir(subfolder)
patch = Patch.load(ips)
romfile = "dkong" if name.startswith("dkong") else name.split("_")[0]
with open(os.path.join(subfolder, f"{romfile}.zip"), 'w+b') as f_out:
f_out.write(patch.apply(dkong_binary))
applied_patches_list.append(name)
return applied_patches_list, addons
def install_addons():
import dk_global as _g
import pygame
# Install addon files when found
if ARCH == "winxp":
# Add-on not supported on XP
return
for addon in reversed(glob("dkafe_*_addon_*.zip")):
# Installing message...
from launch import write_text, update_screen, dk_font, pl_font, RED, GREY, MAGENTA, PINK, get_image
write_text("EXTRACTING ADD-ON PACK", font=dk_font, y=0, fg=RED)
write_text("The console add-on pack is being extracted and installed.", font=pl_font, y=14, fg=RED)
_g.screen.blit(get_image("artwork/sprite/pauline.png"), (0, 215))
write_text("Please wait...", x=22, y=218, bg=MAGENTA, fg=PINK, bubble=True)
pygame.draw.rect(_g.screen, GREY, [0, 245, 224, 8], 0)
update_screen()
# Do Install
try:
with zipfile.ZipFile(addon) as zf:
file_list = zf.namelist()
for idx, file in enumerate(file_list):
if idx % 5 == 0:
_progress = round((idx / len(file_list)) * DISPLAY[0])
_percent = (idx / len(file_list)) * 100
_g.screen.blit(get_image("artwork/sprite/dkblank.png"), (167, 205))
if pygame.time.get_ticks() % 5000 < 2000:
_g.screen.blit(get_image("artwork/sprite/dk0.png"), (167, 205))
elif pygame.time.get_ticks() % 5000 < 3000:
_g.screen.blit(get_image("artwork/sprite/dk1.png"), (167, 205))
elif pygame.time.get_ticks() % 5000 < 4000:
_g.screen.blit(get_image("artwork/sprite/dk2.png"), (167, 205))
else:
_g.screen.blit(get_image("artwork/sprite/dk3.png"), (167, 205))
pygame.draw.rect(_g.screen, RED, [0, 245, _progress, 8], 0)
write_text(f'{_percent:.2f}' + "% installed", x=22, y=218, bg=MAGENTA, fg=PINK, bubble=True)
update_screen()
zf.extract(file)
update_screen()
zf.close()
except:
pass
if ARCH != "win64":
# load states are pregenerated for Windows 64 and Pi only.
# For other platforms, they will be generated on first load of a game, so it's instant on next launch
pathlist = Path(ROM_DIR).glob('**/*.state')
for path in pathlist:
os.remove(str(path))
os.remove(addon)
return addon # restrict to install of 1 add-on for now
if __name__ == "__main__":
apply_patches_and_addons()