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pvr2image.py
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pvr2image.py
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'''
MIT License
Copyright (c) 2023-2024 VincentNL
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
'''
import os
import math
import io
import struct
import numpy as np
import zlib
class decode:
def __init__(self, files_lst=None, fmt=None, out_dir=None, args_str=None):
self.files_lst = files_lst
self.out_dir = out_dir
self.fmt = fmt
self.flip = "" # Default value for flip
self.log = False # Default value for log flag
self.silent = False # Default value for silent flag
self.debug = False # Default value for debug flag
if len(files_lst)==0 or files_lst == '':
print('No file specified!')
return
if fmt is None:
self.fmt = "png"
if out_dir is None:
self.out_dir = os.path.abspath(os.path.dirname(files_lst[0]))
else:
self.out_dir = out_dir
# Determine out_dir
if args_str:
args = args_str.split() # Split the string into individual arguments
# Iterate through the arguments to find flip, log, and debug options
for arg in args:
if arg.startswith('-flip'):
# If -flip is found, extract the flip value
self.flip = arg[len('-flip'):]
elif arg == '-log':
self.log = True
elif arg == '-dbg':
self.debug = True
elif arg == '-silent':
self.silent = True
self.px_modes = {
0: 'ARGB1555',
1: 'RGB565',
2: 'ARGB4444',
3: 'YUV422',
4: 'BUMP',
5: 'RGB555',
6: 'YUV420',
7: 'ARGB8888',
8: 'PAL-4',
9: 'PAL-8',
10: 'AUTO',
}
self.tex_modes = {
1: 'Twiddled',
2: 'Twiddled + Mips',
3: 'Twiddled VQ',
4: 'Twiddled VQ + Mips',
5: 'Twiddled Pal4 (16-col)',
6: 'Twiddled Pal4 + Mips (16-col)',
7: 'Twiddled Pal8 (256-col)',
8: 'Twiddled Pal8 + Mips (256-col)',
9: 'Rectangle',
10: 'Rectangle + Mips',
11: 'Stride',
12: 'Stride + Mips',
13: 'Twiddled Rectangle',
14: 'BMP',
15: 'BMP + Mips',
16: 'Twiddled SmallVQ',
17: 'Twiddled SmallVQ + Mips',
18: 'Twiddled Alias + Mips',
}
# remove companion .PVP/.PVR, filter the list
new_list = []
for item in files_lst:
key = item[:-4]
if not any(key == x[:-4] for x in new_list):
new_list.append(item)
files_lst = new_list
selected_files = len(files_lst)
current_file = 0
# create Extracted\ACT folders
if self.debug: print(out_dir + '\ACT')
# create log file
if self.log:
with open(f'{out_dir}/pvr_log.txt', 'w') as l:
l.write('')
while current_file < selected_files:
if not files_lst: # If no files are selected
break
cur_file = files_lst[current_file]
file_name = os.path.split(cur_file)[1]
filetype = cur_file[-4:]
PVR_file = cur_file[:-4] + '.pvr'
PVP_file = cur_file[:-4] + '.pvp'
# Check if PVP or PVR file exists
pvp_exists = os.path.exists(PVP_file)
pvr_exists = os.path.exists(PVR_file)
apply_palette = True if (filetype == ".pvp" and pvr_exists) or (
filetype == ".pvr" and pvp_exists) else False
act_buffer = bytearray()
if pvp_exists:
self.load_pvp(PVP_file, act_buffer, file_name)
if pvr_exists:
self.load_pvr(PVR_file, apply_palette, act_buffer, file_name)
current_file += 1
def read_col(self,px_format, color):
if px_format == 0: # ARGB1555
a = ((color >> 15) & 0x1) * 0xff
r = int(((color >> 10) & 0x1f) * 0xff / 0x1f)
g = int(((color >> 5) & 0x1f) * 0xff / 0x1f)
b = int((color & 0x1f) * 0xff / 0x1f)
return (r, g, b, a)
elif px_format == 1: # RGB565
a = 0xff
r = int(((color >> 11) & 0x1f) * 0xff / 0x1f)
g = int(((color >> 5) & 0x3f) * 0xff / 0x3f)
b = int((color & 0x1f) * 0xff / 0x1f)
return (r, g, b, a)
elif px_format == 2: # ARGB4444
a = ((color >> 12) & 0xf)*0x11
r = ((color >> 8) & 0xf)*0x11
g = ((color >> 4) & 0xf)*0x11
b = (color & 0xf)*0x11
return (r, g, b, a)
elif px_format == 5: # RGB555
a = 0xFF
r = int(((color >> 10) & 0x1f) * 0xff / 0x1f)
g = int(((color >> 5) & 0x1f) * 0xff / 0x1f)
b = int((color & 0x1f) * 0xff / 0x1f)
return (r, g, b, a)
elif px_format in [7]: # ARGB8888
a = (color >> 24) & 0xFF
r = (color >> 16) & 0xFF
g = (color >> 8) & 0xFF
b = color & 0xFF
return (r, g, b, a)
elif px_format in [14]: # RGBA8888
r = (color >> 24) & 0xFF
g = (color >> 16) & 0xFF
b = (color >> 8) & 0xFF
a = color & 0xFF
return (r, g, b, a)
elif px_format == 3:
# YUV422
yuv0, yuv1 = color
y0 = (yuv0 >> 8) & 0xFF
u = yuv0 & 0xFF
y1 = (yuv1 >> 8) & 0xFF
v = yuv1 & 0xFF
# Perform YUV to RGB conversion
c0 = y0 - 16
c1 = y1 - 16
d = u - 128
e = v - 128
r0 = max(0, min(255, int((298 * c0 + 409 * e + 128) >> 8)))
g0 = max(0, min(255, int((298 * c0 - 100 * d - 208 * e + 128) >> 8)))
b0 = max(0, min(255, int((298 * c0 + 516 * d + 128) >> 8)))
r1 = max(0, min(255, int((298 * c1 + 409 * e + 128) >> 8)))
g1 = max(0, min(255, int((298 * c1 - 100 * d - 208 * e + 128) >> 8)))
b1 = max(0, min(255, int((298 * c1 + 516 * d + 128) >> 8)))
return r0, g0, b0, r1, g1, b1
def read_pal(self,mode, color, act_buffer):
if mode == 4444:
red = ((color >> 8) & 0xf) << 4
green = ((color >> 4) & 0xf) << 4
blue = (color & 0xf) << 4
alpha = '-'
if mode == 555:
red = ((color >> 10) & 0x1f) << 3
green = ((color >> 5) & 0x1f) << 3
blue = (color & 0x1f) << 3
alpha = '-'
elif mode == 565:
red = ((color >> 11) & 0x1f) << 3
green = ((color >> 5) & 0x3f) << 2
blue = (color & 0x1f) << 3
alpha = '-'
elif mode == 8888:
blue = (color >> 0) & 0xFF
green = (color >> 8) & 0xFF
red = (color >> 16) & 0xFF
alpha = (color >> 24) & 0xFF
act_buffer += bytes([red, green, blue])
return act_buffer
def read_pvp(self,f, act_buffer):
f.seek(0x08)
pixel_type = int.from_bytes(f.read(1), 'little')
if pixel_type == 1:
mode = 565
elif pixel_type == 2:
mode = 4444
elif pixel_type == 6:
mode = 8888
else:
mode = 555
f.seek(0x0e)
ttl_entries = int.from_bytes(f.read(2), 'little')
f.seek(0x10) # Start palette data
current_offset = 0x10
for counter in range(0, ttl_entries):
if mode != 8888:
color = int.from_bytes(f.read(2), 'little')
act_buffer = self.read_pal(mode, color, act_buffer)
current_offset += 0x2
else:
color = int.from_bytes(f.read(4), 'little')
act_buffer = self.read_pal(mode, color, act_buffer)
current_offset += 0x4
return act_buffer, mode, ttl_entries
def image_flip(self, data, w, h,cmode):
if cmode == 'RGB':
pixels_len = 3
elif cmode == 'RGBA':
pixels_len = 4
else:
pixels_len = 1
if self.flip and'v' in self.flip:
data = (np.flipud((np.array(data)).reshape(h, w, -1)).flatten()).reshape(-1, pixels_len).tolist()
if self.flip and 'h' in self.flip:
data = (np.fliplr((np.array(data)).reshape(h, w, -1)).flatten()).reshape(-1, pixels_len).tolist()
return data
def save_image(self,file_name,data,bits,w,h,cmode,palette):
if not os.path.exists(self.out_dir):
os.makedirs(self.out_dir)
if self.fmt == 'png':
self.save_png(file_name,data,bits,w,h,cmode,palette)
elif self.fmt == 'bmp':
self.save_bmp(file_name,data,bits,w,h,cmode,palette )
elif self.fmt == 'tga':
self.save_tga(file_name,data,bits,w,h,cmode,palette )
if not self.silent:print(fr"{self.out_dir}\{file_name[:-4]}.{self.fmt}")
# Incomplete! Not supporting palettized images!
def save_tga(self, file_name,data,bits,w,h,cmode,palette=None):
# Define TGA header
tga_header = bytearray([0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, w & 255, (w >> 8) & 255,
h & 255, (h >> 8) & 255, 32, 0])
# TGA is not reversed by default
pixel_data = bytearray()
# Iterate over the flattened array and append the pixel data
for pixel in data:
# Assuming pixel is in BGRA format
pixel_data.extend([pixel[2], pixel[1], pixel[0], pixel[3]])
# Combine the header and pixel data
tga_data = tga_header + pixel_data
# Save the TGA file
with open(fr'{self.out_dir}\{file_name[:-4]}.tga', "wb") as tga_file:
tga_file.write(tga_data)
def save_bmp(self, file_name, data, bits, w, h, cmode, palette=None):
# Define BMP file header
file_header = bytearray([66, 77, 54, 0, 0, 0, 0, 0, 0, 0, 54, 0, 0, 0]) # BMP string
pixel_data = bytearray()
# Define DIB header
if cmode == 'RGB':
bpp_var = 24
elif cmode == 'RGBA':
bpp_var = 32
else:
bpp_var = bits
#print(len(palette))
if 'PAL' in cmode:
# Add palette to DIB header
palette_data = bytearray()
for color in palette:
palette_data.extend([color[2], color[1], color[0], 0]) # Assuming RGB format, add padding
else:
palette_data = bytes()
palette = bytes(0)
dib_header = bytearray([40, 0, 0, 0, # DIB header size
w & 255, (w >> 8) & 255, (w >> 16) & 255, (w >> 24) & 255, # Image width
h & 255, (h >> 8) & 255, (h >> 16) & 255, (h >> 24) & 255, # Image height
1, 0, # Color planes
bpp_var, 0, # Bits per pixel
0, 0, 0, 0, # Compression method (0 for uncompressed)
0, 0, 0, 0, # Image size (0 for uncompressed)
0, 0, 0, 0, # Horizontal resolution (pixels per meter)
0, 0, 0, 0, # Vertical resolution (pixels per meter)
len(palette) & 255, (len(palette) >> 8) & 255, 0, 0, # Number of colors in the palette
0, 0, 0, 0]) # Number of important colors
# Combine the header and DIB header
header = file_header + dib_header + palette_data
if 'PAL' in cmode:
data = [item for sublist in data for item in sublist]
# Calculate the length of each index sublist
if cmode == 'RGB-PAL16':
sublist_length = w//2
else:
sublist_length = w #'RGB-PAL256'
sublists = [data[i:i + sublist_length] for i in range(0, len(data), sublist_length)]
reversed_sublists = sublists[::-1]
pixel_data = bytes([item for sublist in reversed_sublists for item in sublist])
else:
# Bmp default order is left-right, bottom-top
for y in range(h - 1, -1, -1):
for x in range(w):
# Assuming pixel is in BGRA format
pixel = data[y * w + x]
if cmode == 'RGBA':
pixel_data.extend([pixel[2], pixel[1], pixel[0], pixel[3]])
elif cmode == 'RGB':
pixel_data.extend([pixel[2], pixel[1], pixel[0]])
# Combine the header, palette (if any), and pixel data
bmp_data = header + pixel_data
# Save the BMP file
with open(fr'{self.out_dir}\{file_name[:-4]}.bmp', "wb") as bmp_file:
bmp_file.write(bmp_data)
def save_png(self, file_name,data, bits, w, h, cmode, palette):
Pixel = None
#print(cmode)
if cmode == 'RGB':
Pixel = tuple[int, int, int]
elif cmode == 'RGBA':
Pixel = tuple[int, int, int, int]
image_data = list[list[Pixel]]
def encode_data(image_data: list[list[Pixel]]) -> list[int]:
ret = []
for row in image_data:
ret.extend([0] + [pixel for color in row for pixel in color])
return ret
def calculate_checksum(chunk_type: bytes, data: bytes) -> int:
checksum = zlib.crc32(chunk_type)
checksum = zlib.crc32(data, checksum)
return checksum
def palette_to_bytearray(palette):
# Ensure each RGB tuple has three components
palette = [tuple(rgb[:3]) for rgb in palette]
# Flatten the RGB tuples and pack them into a bytearray
byte_array = bytearray()
for rgb in palette:
byte_array.extend(struct.pack('BBB', *rgb))
return byte_array
color_type = 2 # truecolor by default
if cmode == 'RGB':
color_type = 2 # truecolor
elif cmode == 'RGBA':
color_type = 6 # truecolor with alpha
elif 'PAL' in cmode:
color_type = 3 # indexed color
# Convert palette to a bytearray
bytearray_palette = palette_to_bytearray(palette)
if 'PAL' in cmode:
# Create indexes
indexes = [item for sublist in data for item in sublist]
image_bytes = bytearray([0] + indexes) # Filter type 0 for the first scanline
png_array = []
if cmode == 'RGB-PAL16':
row_lenght = (w // 2)
else:
row_lenght = (w)
for y in range(h):
png_array.append(0) # Filter type 0 for each scanline
for x in range(row_lenght):
png_array.append(x + y * row_lenght + 1)
# Rearrange indexes based on png_array order
image_data = bytearray([image_bytes[i] for i in png_array])
else:
# Arrange image data into rows
image_data= bytearray(encode_data([data[i:i + w] for i in range(0, len(data), w)]))
# Compress image data using zlib with compression level 0
compressed_data = zlib.compress(image_data,level=1)
# Write PNG signature
signature = b'\x89PNG\r\n\x1a\n'
with open(fr'{self.out_dir}\{file_name[:-4]}.png', "wb") as out:
out.write(signature)
# Write IHDR chunk
ihdr_chunk = struct.pack('!I', w) + struct.pack('!I', h) + bytes([bits, color_type, 0, 0, 0])
checksum = calculate_checksum(b'IHDR', ihdr_chunk)
out.write(struct.pack('!I', len(ihdr_chunk)) + b'IHDR' + ihdr_chunk + struct.pack('!I', checksum))
if 'PAL' in cmode:
# Write PLTE chunk
checksum = calculate_checksum(b'PLTE', bytearray_palette)
out.write(
struct.pack('!I', len(bytearray_palette)) + b'PLTE' + bytearray_palette + struct.pack('!I',
checksum))
# Write IDAT chunk (compressed image data)
checksum = calculate_checksum(b'IDAT', compressed_data)
# print(struct.pack('!I', len(compressed_data)))
out.write(
struct.pack('!I', len(compressed_data)) + b'IDAT' + compressed_data + struct.pack('!I', checksum))
# Write IEND chunk
checksum = calculate_checksum(b'IEND', b'')
out.write(struct.pack('!I', 0) + b'IEND' + struct.pack('!I', checksum))
def write_act(self,act_buffer, file_name):
#print(act_buffer)
if not os.path.exists(self.out_dir + '\ACT'):
os.makedirs(self.out_dir + '\ACT')
with open((fr"{self.out_dir}\ACT/{file_name[:-4]}.ACT"), 'w+b') as n:
# Pad file with 0x00 if 16-color palette
if len(act_buffer) < 768:
act_file = bytes(act_buffer) + bytes(b'\x00' * (768 - len(act_buffer)))
else:
act_file = bytes(act_buffer)
n.write(act_file)
def detwiddle(self,w, h):
# Initialize variables
index = 0
pat2, h_inc, arr, h_arr = [], [], [], []
# Build Twiddle index table
seq = [2, 6, 2, 22, 2, 6, 2]
pat = seq + [86] + seq + [342] + seq + [86] + seq
for i in range(4):
pat2 += [1366, 5462, 1366, 21846]
pat2 += [1366, 5462, 1366, 87382] if i % 2 == 0 else [1366, 5462, 1366, 349526]
for i in range(len(pat2)):
h_inc.extend(pat + [pat2[i]])
h_inc.extend(pat)
# Rectangle (horizontal)
if w > h:
ratio = int(w / h)
# print(f'width is {ratio} times height!')
if w % 32 == 0 and w & (w - 1) != 0 or h & (h - 1) != 0:
# print('h and w not power of 2. Using Stride format')
n = h * w
for i in range(n):
arr.append(i)
else:
# Single block h_inc length
cur_h_inc = {w: h_inc[0:h - 1] + [2]} # use height size to define repeating block h_inc
# define the first horizontal row of image pixel array:
for j in range(ratio):
if w in cur_h_inc:
for i in cur_h_inc[w]:
h_arr.append(index)
index += i
index = (len(h_arr) * h)
# define the vertical row of image pixel array of repeating block:
v_arr = [int(x / 2) for x in h_arr]
v_arr = v_arr[0:h]
for val in v_arr:
arr.extend([x + val for x in h_arr])
# Rectangle (vertical)
elif h > w:
ratio = int(h / w)
# print(f'height is {ratio} times width!')
# Set the size of pixel increase array
cur_h_inc = {w: h_inc[0:w - 1] + [2]}
# define the first horizontal row of image pixel array:
if w in cur_h_inc:
for i in cur_h_inc[w]:
h_arr.append(index)
index += i
# define the vertical row of image pixel array:
v_arr = [int(x / 2) for x in h_arr]
# Repeat vertical array block from the last value of array * h/w ratio
for i in range(ratio):
if i == 0:
last_val = 0
else:
last_val = arr[-1] + 1
for val in v_arr:
arr.extend([last_val + x + val for x in h_arr])
elif w == h: # Square
cur_h_inc = {w: h_inc[0:w - 1] + [2]}
# define the first horizontal row of image pixel array:
if w in cur_h_inc:
for i in cur_h_inc[w]:
h_arr.append(index)
index += i
# define the vertical row of image pixel array:
v_arr = [int(x / 2) for x in h_arr]
for val in v_arr:
arr.extend([x + val for x in h_arr])
return arr
def decode_pvr(self, f, file_name, w, h, offset=None, px_format=None, tex_format=None, apply_palette=None,
act_buffer=None):
f.seek(offset)
data = bytearray()
if tex_format not in [9, 10, 11, 12, 14, 15]:
arr = self.detwiddle(w, h)
if tex_format in [5, 6, 7, 8]:
cmode = None
if tex_format in [7, 8]: # 8bpp
palette_entries = 256
bits = 8
pixels = list(f.read(w * h))
data = [pixels[i] for i in arr]
if self.flip != '':
data = self.image_flip(data, w, h, cmode)
# Flatten the nested list and convert each value to an integer
data = [int(value) for sublist in data for value in sublist]
# 4bpp, convert to 8bpp
else:
palette_entries = 16
bits = 4
pixels = bytearray(f.read(w * h // 2)) # read only required amount of bytes
# Read 4bpp to 8bpp indexes
data = []
for i in range(len(pixels)):
data.append(((pixels[i]) & 0x0f) * 0x11) # last 4 bits
data.append((((pixels[i]) & 0xf0) >> 4) * 0x11) # first 4 bits
# Assuming 'data' contains the 8bpp indexes
new_pixels = bytearray(data)
# Detwiddle 8bpp indexes
data = []
for num in arr:
data.append(new_pixels[num])
if self.flip != '':
data = self.image_flip(data, w, h, cmode)
# Flatten the nested list and convert each value to an integer
data = [int(value) for sublist in data for value in sublist]
data = bytearray(data) # 8bpp "twiddled data" back into "pixels" variable
# Convert back to 4bpp indexes with swapped upper and lower bits
converted_data = bytearray()
for i in range(0, len(data), 2):
# Swap the position of upper and lower bits
index1 = (data[i] // 0x11) << 4 | (data[i + 1] // 0x11)
# Append the modified index to the converted data
converted_data.append(index1)
data = converted_data
data = [data]
if palette_entries == 16:
if apply_palette == True:
palette = [tuple(act_buffer[i:i + 3]) for i in range(0, len(act_buffer), 3)]
else:palette = [(i * 17, i * 17, i * 17) for i in range(16)]
cmode = 'RGB-PAL16'
elif palette_entries == 256:
if apply_palette == True:
palette = [tuple(act_buffer[i:i + 3]) for i in range(0, len(act_buffer), 3)]
else:palette = [(i, i, i) for i in range(256)]
cmode = 'RGB-PAL256'
self.save_image(file_name, data, bits, w, h, cmode, palette)
# VQ
elif tex_format in [3, 4, 16, 17]:
codebook_size = 256
# SmallVQ - Thanks Kion! :)
if tex_format == 16:
if w <= 16:
codebook_size = 16
elif w == 32:
codebook_size = 32
elif w == 64:
codebook_size = 128
else:
codebook_size = 256
# SmallVQ + Mips
elif tex_format == 17:
if w <= 16:
codebook_size = 16
elif w == 32:
codebook_size = 64
else:
codebook_size = 256
# print(codebook_size)
codebook = []
if px_format not in [3]:
cmode = 'RGBA'
for l in range(codebook_size):
block = []
for i in range(4):
pixel = (int.from_bytes(f.read(2), 'little'))
pix_col = self.read_col(px_format, pixel)
block.append(pix_col)
codebook.append(block)
# YUV422
else:
cmode = 'RGB'
yuv_codebook = []
for l in range(codebook_size):
block = []
for i in range(4):
pixel = (int.from_bytes(f.read(2), 'little'))
block.append(pixel)
r0, g0, b0, r1, g1, b1 = self.read_col(px_format, (block[0], block[3]))
r2, g2, b2, r3, g3, b3 = self.read_col(px_format, (block[1], block[2]))
yuv_codebook.append([(r0, g0, b0), (r2, g2, b2), (r3, g3, b3), (r1, g1, b1)])
codebook = yuv_codebook
# VQ Mips!
if tex_format in [4, 17]:
pvr_dim = [4, 8, 16, 32, 64, 128, 256, 512, 1024]
mip_size = [0x10, 0x40, 0x100, 0x400, 0x1000, 0x4000, 0x10000, 0x40000]
size_adjust = {4: 1, 17: 1} # 8bpp size is 4bpp *2
extra_mip = {4: 0x6, 17: 0x6, } # smallest mips fixed size
for i in range(len(pvr_dim)):
if pvr_dim[i] == w:
mip_index = i - 1
break
# Skip mips for image data offset
mip_sum = (sum(mip_size[:mip_index]) * size_adjust[tex_format]) + (extra_mip[tex_format])
f.seek(f.tell() + mip_sum)
# print(hex(f.tell()))
# Read pixel_index:
pixel_list = []
bytes_to_read = int((w * h) / 4)
# Each index stores 4 pixels
for i in range(bytes_to_read):
pixel_index = (int.from_bytes(f.read(1), 'little'))
pixel_list.append(int(pixel_index))
# Detwiddle image data indices, put them into arr list
arr = self.detwiddle(int(w / 2), int(h / 2))
# Create an empty 2D array to store pixel data
image_array = [[(0, 0, 0, 0) for _ in range(w)] for _ in range(h)]
# Iterate over the blocks and update the pixel values in the array
i = 0
for y in range(h//2):
for x in range(w//2):
image_array[y * 2][x * 2] = codebook[pixel_list[arr[i]]][0]
image_array[y * 2 + 1][x * 2] = codebook[pixel_list[arr[i]]][1]
image_array[y * 2][x * 2 + 1] = codebook[pixel_list[arr[i]]][2]
image_array[y * 2 + 1][x * 2 + 1] = codebook[pixel_list[arr[i]]][3]
i += 1
# Flatten the 2D array to a 1D list for putdata
data = [pixel for row in image_array for pixel in row]
if self.flip != '':
data = self.image_flip(data, w, h, cmode)
palette = ''
# save the image
self.save_image(file_name,data,8,w,h,cmode,palette)
# BMP ABGR8888
elif tex_format in [14, 15]:
pixels = [int.from_bytes(f.read(4), 'little') for _ in range(w * h)]
data = [(self.read_col(14, p)) for p in pixels]
palette = ''
cmode = 'RGBA'
if self.flip != '':
data = self.image_flip(data, w, h, cmode)
# save the image
self.save_image(file_name,data,8,w,h,cmode,palette)
# BUMP loop
elif px_format == 4:
pixels = [int.from_bytes(f.read(2), 'little') for _ in range(w * h)]
data = [self.cart_to_rgb(self.process_SR(p)) for p in (pixels[i] for i in arr)]
palette = ''
cmode = 'RGB'
if self.flip != '':
data = self.image_flip(data, w, h, cmode)
# save the image
self.save_image(file_name,data,8,w,h,cmode,palette)
# ARGB modes
elif px_format in [0, 1, 2, 5, 7, 18]:
pixels = [int.from_bytes(f.read(2), 'little') for _ in range(w * h)]
if tex_format not in [9, 10, 11, 12, 14, 15]: # If Twiddled
data = [(self.read_col(px_format, p)) for p in (pixels[i] for i in arr)]
else:
data = [(self.read_col(px_format, p)) for p in pixels]
palette = ''
cmode = 'RGBA'
if self.flip != '':
data = self.image_flip(data, w, h, cmode)
# save the image
self.save_image(file_name,data,8,w,h,cmode,palette)
# YUV420 modes
elif px_format in [6]:
data = []
self.yuv420_to_rgb(f, w, h, data)
palette = ''
cmode = 'RGB'
if self.flip != '':
data = self.image_flip(data, w, h, cmode)
# save the image
self.save_image(file_name, data, 8,w, h, cmode, palette)
# YUV422 modes
elif px_format in [3]:
data = []
# Twiddled
if tex_format not in [9, 10, 11, 12, 14, 15]:
i = 0
offset = f.tell()
for y in range(h):
for x in range(0, w, 2):
f.seek(offset + (arr[i] * 2))
yuv0 = int.from_bytes(f.read(2), 'little')
i += 1
f.seek(offset + (arr[i] * 2))
yuv1 = int.from_bytes(f.read(2), 'little')
r0, g0, b0, r1, g1, b1 = self.read_col(px_format, (yuv0, yuv1))
data.append((r0, g0, b0))
data.append((r1, g1, b1))
i += 1
else:
for y in range(h):
for x in range(0, w, 2):
# Read yuv0 and yuv1 separately
yuv0 = int.from_bytes(f.read(2), 'little')
yuv1 = int.from_bytes(f.read(2), 'little')
r0, g0, b0, r1, g1, b1 = self.read_col(px_format, (yuv0, yuv1))
data.append((r0, g0, b0))
data.append((r1, g1, b1))
palette = ''
cmode = 'RGB'
if self.flip != '':
data = self.image_flip(data, w, h, cmode)
# save the image
self.save_image(file_name,data,8,w,h,cmode,palette)
def load_pvr(self, PVR_file, apply_palette, act_buffer, file_name):
px_modes = self.px_modes
tex_modes = self.tex_modes
with open(PVR_file, 'rb') as f:
# Wrap file content in a BytesIO object
f_buffer = io.BytesIO(f.read())
header_data = f_buffer.getvalue()
gbix_offset = header_data.find(b"GBIX")
if gbix_offset != -1:
f_buffer.seek(gbix_offset + 0x4)
gbix_size = int.from_bytes(f_buffer.read(4), byteorder='little')
if gbix_size == 0x8:
gbix_val1 = int.from_bytes(f_buffer.read(4), byteorder='little')
gbix_val2 = int.from_bytes(f_buffer.read(4), byteorder='little')
if self.debug:
print(hex(gbix_val1), hex(gbix_val2))
elif gbix_size == 0x4:
gbix_val1 = int.from_bytes(f_buffer.read(4), byteorder='little')
gbix_val2 = ''
else:
print('invalid or unsupported GBIX size:', gbix_size, file_name)
else:
if self.debug:
print('GBIX found at:', hex(gbix_offset))
gbix_val1 = ''
gbix_val2 = ''
offset = header_data.find(b"PVRT")
if offset != -1 or len(header_data) < 0x10:
f_buffer.seek(offset + 0x8)
# Pixel format
px_format = int.from_bytes(f_buffer.read(1), byteorder='little')
tex_format = int.from_bytes(f_buffer.read(1), byteorder='little')
f_buffer.seek(f_buffer.tell() + 2)
# Image size
w = int.from_bytes(f_buffer.read(2), byteorder='little')
h = int.from_bytes(f_buffer.read(2), byteorder='little')
offset = f_buffer.tell()
if self.debug:
print(PVR_file.split('/')[-1], 'size:', w, 'x', h, 'format:',
f'[{tex_format}] {tex_modes[tex_format]}', f'[{px_format}] {px_modes[px_format]}')
if tex_format in [2, 4, 6, 8, 10, 12, 15, 17, 18]:
if tex_format in [2, 6, 8, 10, 15, 18]:
# Mips skip
pvr_dim = [4, 8, 16, 32, 64, 128, 256, 512, 1024]
mip_size = [0x20, 0x80, 0x200, 0x800, 0x2000, 0x8000, 0x20000, 0x80000]
size_adjust = {2: 4, 6: 1, 8: 2, 10: 4, 15: 8, 18: 4} # 8bpp size is 4bpp *2
extra_mip = {2: 0x2c, 6: 0xc, 8: 0x18, 10: 0x2c, 15: 0x54,
18: 0x30} # smallest mips fixed size
for i in range(len(pvr_dim)):
if pvr_dim[i] == w:
mip_index = i - 1
break
mip_sum = (sum(mip_size[:mip_index]) * size_adjust[tex_format]) + (extra_mip[tex_format])
offset += mip_sum
self.decode_pvr(f_buffer, file_name, w, h, offset, px_format, tex_format, apply_palette, act_buffer)
if self.log:
log_content = (
f"Filename: {PVR_file}, size: {w}x{h}, format: {tex_modes[tex_format]}, "
f"mode: {px_modes[px_format]}"
f"{f', GBIX: {gbix_val1}' if gbix_val1 != '' else ', GBIX1: ---'}"
f"{f', GBIX2: {gbix_val2}' if gbix_val2 != '' else ', GBIX2: ---'}\n"
)
with open(f'{self.out_dir}/pvr_log.txt', 'a') as l:
l.write(log_content)
else:
print("'PVRT' header not found!")
def load_pvp(self,PVP_file, act_buffer, file_name):
try:
with open(PVP_file, 'rb') as f:
file_size = len(f.read())
f.seek(0x0)