RF2_rfl_rfc/peg_read.py at master · FactionFiles/RF2_rfl_rfc · GitHub

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#!/usr/bin/python3

import sys
import re
from rf2 import xyz, read4u, read4S, read2u, read1u, read1S, readNstr, readFixNstr, readCstr, readflt, readXYZ, readMt33
from PIL import Image as pimg

class Texx:
	Name = ""
	width = 0
	height = 0
	fmt = 0
	fmt2 = 0
	flgs = 0
	frmCnt = 0
	animDelay = 0
	mipCount = 0
	unk1 = 0
	unk2 = 0
	offset = 0
	sz = 0
	img = None


class Peg:
	Texturies = None

	def __init__(self):
		self.Texturies = list()


def DecodeA1B5G5R5(tx, inp):
	img = pimg.new('RGBA', (tx.width, tx.height))
	pix = img.load()

	ipos = 0
	for y in range(tx.height):
		for x in range(tx.width):

			wrd = int.from_bytes(inp[ipos : ipos + 2], byteorder="little")

			a = 255 * (wrd >> 15)
			b = int(((wrd >> 10) & 0x1F) * 8.23)
			g = int(((wrd >> 5) & 0x1F) * 8.23)
			r = int((wrd & 0x1F) * 8.23)

			pix[ x , y ] = (r, g, b, a)
			ipos += 2
	return img

def DecodeA8B8G8R8(tx, inp):
	img = pimg.new('RGBA', (tx.width, tx.height))
	pix = img.load()

	ipos = 0
	for y in range(tx.height):
		for x in range(tx.width):

			bts = inp[ipos : ipos + 4]

			a = bts[3]
			b = bts[2]
			g = bts[1]
			r = bts[0]

			if (a != 0):
				a = 255
			pix[ x , y ] = (r, g, b, a)
			ipos += 4
	return img

def DecodeIndexed(tx, inp):
	img = pimg.new('RGBA', (tx.width, tx.height))
	pix = img.load()

	palette = []

	ipos = 0

	for p in range(256):
		if (tx.fmt2 == 1):
			wrd = int.from_bytes(inp[ipos : ipos + 2], byteorder="little")

			a = 255 * (wrd >> 15)
			b = int(((wrd >> 10) & 0x1F) * 8.23)
			g = int(((wrd >> 5) & 0x1F) * 8.23)
			r = int((wrd & 0x1F) * 8.23)

			palette.append( (r, g, b, a) )
			ipos += 2
		elif (tx.fmt2 == 2):
			bts = inp[ipos : ipos + 4]

			a = bts[3]
			b = bts[2]
			g = bts[1]
			r = bts[0]

			if (a != 0):
				a = 255

			palette.append( (r, g, b, a) )
			ipos += 4
		else:
			print("Fmt2:", tx.fmt2)

	for y in range(tx.height):
		for x in range(tx.width):

			idx = inp[ipos]

			## PS2 CLUT index Swizzle
			idx = idx & 0xE7 | (idx >> 1) & 8 | (idx << 1) & 0x10

			pix[ x , y ] = palette[idx]
			ipos += 1

	return img


def ReadPeg(filename):
	fl = open(filename, "rb")

	fl.seek(0, 2)
	SZ = fl.tell()
	fl.seek(0, 0)

	Sign = read4u(fl)
	if (Sign != 0x564B4547):
		return None

	Version = read4u(fl)
	if (Version != 6):
		return None

	pg = Peg()

	hdrSz = read4u(fl)
	datSz = read4u(fl)
	texCount = read4u(fl)
	unknown14 = read4u(fl)
	frameCount = read4u(fl)
	unknown1C = read4u(fl)

	## Pre allocate
	for i in range(texCount):
		pg.Texturies.append(Texx())

	## Read headers
	for i in range(texCount):
		tx = pg.Texturies[i]
		tx.width = read2u(fl)
		tx.height = read2u(fl)
		tx.fmt = read1u(fl)
		tx.fmt2 = read1u(fl)
		tx.flgs = read1u(fl)
		tx.frmCnt = read1u(fl)
		tx.animDelay = read1u(fl)
		tx.mipCount = read1u(fl)
		tx.unk1 = read1u(fl)
		tx.unk2 = read1u(fl)
		tx.Name = readFixNstr(fl, 48)
		tx.offset = read4u(fl)

		if (i > 0):
			pg.Texturies[i - 1].sz = tx.offset - pg.Texturies[i - 1].offset

		if (i == texCount - 1):
			tx.sz = SZ - tx.offset

	# Decode
	for tx in pg.Texturies:
		fl.seek(tx.offset, 0)
		pkd = fl.read(tx.sz)

		if (tx.fmt == 3):
			tx.img = DecodeA1B5G5R5(tx, pkd)
		elif (tx.fmt == 4):
			tx.img = DecodeIndexed(tx, pkd)
		elif (tx.fmt == 7):
			tx.img = DecodeA8B8G8R8(tx, pkd)
		else:
			print("Unknown format :", tx.fmt)

	return pg


def main():
	PEG = ReadPeg(sys.argv[1])

	for tx in PEG.Texturies:
		if (tx.img != None):
			tx.img.save(tx.Name + ".png")


if __name__ == '__main__':
	main()