mirror of
https://github.com/pmret/papermario.git
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579 lines
19 KiB
Python
579 lines
19 KiB
Python
from dataclasses import dataclass
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from math import ceil
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import struct
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import json
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from pathlib import Path
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import png
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import n64img.image
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from common import iter_in_groups
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from sys import path
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path.append(str(Path(__file__).parent.parent / "build"))
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from img.build import Converter
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def decode_null_terminated_ascii(data):
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length = 0
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for byte in data:
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if byte == 0:
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break
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length += 1
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return data[:length].decode("ascii")
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def parse_palette(data):
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palette = []
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# RRRRRGGG GGBBBBBA
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def unpack_color(data):
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s = int.from_bytes(data[0:2], byteorder="big")
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r = (s >> 11) & 0x1F
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g = (s >> 6) & 0x1F
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b = (s >> 1) & 0x1F
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a = (s & 1) * 0xFF
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r = ceil(0xFF * (r / 31))
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g = ceil(0xFF * (g / 31))
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b = ceil(0xFF * (b / 31))
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return r, g, b, a
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for a, b in iter_in_groups(data, 2):
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palette.append(unpack_color([a, b]))
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return palette
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FMT_RGBA = 0
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FMT_CI = 2
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FMT_IA = 3
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FMT_I = 4
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DEPTH_4_BIT = 0
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DEPTH_8_BIT = 1
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DEPTH_16_BIT = 2
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DEPTH_32_BIT = 3
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# extra tile modes
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TILES_BASIC = 0
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TILES_MIPMAPS = 1
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TILES_SHARED_AUX = 2
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TILES_INDEPENDENT_AUX = 3
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AUX_COMBINE_MODES = {
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0x00: "None", # multiply main * prim, ignore aux
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0x08: "Multiply", # multiply main * aux * prim
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0x0D: "ModulateAlpha", # use prim color, but multiply alpha by the difference between main and aux red channels
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0x10: "LerpMainAux", # use prim alpha to lerp between main and aux color, use main alpha
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}
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AUX_COMBINE_MODES_INV = {v: k for k, v in AUX_COMBINE_MODES.items()}
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wrap_modes = {
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0: "Repeat",
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1: "Mirror",
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2: "Clamp",
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}
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wrap_modes_inv = {v: k for k, v in wrap_modes.items()}
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# correspond to modes provided to gSetTextureFilter, only 0 and 2 are ever used
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filter_modes = {
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0: "Nearest",
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2: "Bilerp",
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3: "Average",
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}
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filter_modes_inv = {v: k for k, v in filter_modes.items()}
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def get_format_name(fmt, depth):
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# get image from bytes for valid combinations of fmt and bit depth
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if fmt == FMT_RGBA:
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if depth == DEPTH_16_BIT:
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return "RGBA16"
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if depth == DEPTH_32_BIT:
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return "RGBA32"
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elif fmt == FMT_CI:
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if depth == DEPTH_4_BIT:
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return "CI4"
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elif depth == DEPTH_8_BIT:
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return "CI8"
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elif fmt == FMT_IA:
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if depth == DEPTH_4_BIT:
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return "IA4"
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elif depth == DEPTH_8_BIT:
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return "IA8"
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elif depth == DEPTH_16_BIT:
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return "IA16"
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elif fmt == FMT_I:
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if depth == DEPTH_4_BIT:
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return "I4"
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elif depth == DEPTH_8_BIT:
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return "I8"
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else:
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raise Exception(f"Invalid format/depth pair: {fmt} and {depth}")
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def get_format_code(name):
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# get image from bytes for valid combinations of fmt and bit depth
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if name == "RGBA16":
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return (FMT_RGBA, DEPTH_16_BIT)
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elif name == "RGBA32":
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return (FMT_RGBA, DEPTH_32_BIT)
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elif name == "CI4":
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return (FMT_CI, DEPTH_4_BIT)
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elif name == "CI8":
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return (FMT_CI, DEPTH_8_BIT)
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elif name == "IA4":
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return (FMT_IA, DEPTH_4_BIT)
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elif name == "IA8":
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return (FMT_IA, DEPTH_8_BIT)
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elif name == "IA16":
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return (FMT_IA, DEPTH_16_BIT)
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elif name == "I4":
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return (FMT_I, DEPTH_4_BIT)
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elif name == "I8":
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return (FMT_I, DEPTH_8_BIT)
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else:
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raise Exception(f"Invalid format: {name}")
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# class for reading a tex file buffer one chunk at a time
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@dataclass
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class TexBuffer:
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data: bytes
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pos: int = 0
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@property
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def capacity(self):
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return len(self.data)
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def get(self, count):
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amt = int(min(count, self.capacity - self.pos))
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ret = self.data[self.pos : self.pos + amt]
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self.pos += amt
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return ret
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def remaining(self):
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return self.capacity - self.pos
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class TexImage:
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# utility function for unpacking aux/main property pairs from a single byte
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def split_byte(self, byte):
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return (byte >> 4 & 0xF), (byte & 0xF)
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# utility function for unpacking aux/main property pairs from a single byte
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def pack_byte(self, aux, main):
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return ((aux & 0xF) << 4) | (main & 0xF)
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# get n64img object from the buffer
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def get_n64_img(self, texbuf: TexBuffer, fmt, depth, w, h):
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# calculate size for bit depth
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if depth == DEPTH_4_BIT:
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size = w * h // 2
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elif depth == DEPTH_8_BIT:
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size = w * h
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elif depth == DEPTH_16_BIT:
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size = w * h * 2
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elif depth == DEPTH_32_BIT:
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size = w * h * 4
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else:
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raise Exception(f"Invalid bit depth: {depth}")
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bytes = texbuf.get(size)
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# get image from bytes for valid combinations of fmt and bit depth
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fmt_name = get_format_name(fmt, depth)
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if fmt_name == "RGBA16":
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img = n64img.image.RGBA16(data=bytes, width=w, height=h)
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elif fmt_name == "RGBA32":
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img = n64img.image.RGBA32(data=bytes, width=w, height=h)
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elif fmt_name == "CI4":
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img = n64img.image.CI4(data=bytes, width=w, height=h)
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elif fmt_name == "CI8":
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img = n64img.image.CI8(data=bytes, width=w, height=h)
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elif fmt_name == "IA4":
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img = n64img.image.IA4(data=bytes, width=w, height=h)
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elif fmt_name == "IA8":
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img = n64img.image.IA8(data=bytes, width=w, height=h)
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elif fmt_name == "IA16":
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img = n64img.image.IA16(data=bytes, width=w, height=h)
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elif fmt_name == "I4":
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img = n64img.image.I4(data=bytes, width=w, height=h)
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elif fmt_name == "I8":
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img = n64img.image.I8(data=bytes, width=w, height=h)
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else:
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raise Exception(f"Invalid format: {fmt_name}")
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img.flip_v = True
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return img
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# get palette from the buffer
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def get_n64_pal(self, texbuf, fmt, depth):
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if fmt == FMT_CI:
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if depth == DEPTH_4_BIT:
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return parse_palette(texbuf.get(0x20))
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elif depth == DEPTH_8_BIT:
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return parse_palette(texbuf.get(0x200))
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# extract texture properties and rasters from buffer
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def from_bytes(self, texbuf: TexBuffer):
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# strip area prefix and original extension suffix
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self.img_name = decode_null_terminated_ascii(texbuf.get(32))
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(
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self.aux_width,
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self.main_width,
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self.aux_height,
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self.main_height,
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self.is_variant,
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self.extra_tiles,
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self.combine_mode,
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fmts,
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depths,
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hwraps,
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vwraps,
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self.filter_mode,
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) = struct.unpack(">HHHHBBBBBBBB", texbuf.get(16))
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# unpack upper/lower nibbles for aux/main
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(self.aux_fmt, self.main_fmt) = self.split_byte(fmts)
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(self.aux_depth, self.main_depth) = self.split_byte(depths)
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(self.aux_hwrap, self.main_hwrap) = self.split_byte(hwraps)
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(self.aux_vwrap, self.main_vwrap) = self.split_byte(vwraps)
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self.has_mipmaps = False
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self.has_aux = False
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# main img only
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if self.extra_tiles == TILES_BASIC:
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self.main_img = self.get_n64_img(
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texbuf,
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self.main_fmt,
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self.main_depth,
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self.main_width,
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self.main_height,
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)
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if self.main_fmt == FMT_CI:
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self.main_img.palette = self.get_n64_pal(texbuf, self.main_fmt, self.main_depth)
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# main img + mipmaps
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elif self.extra_tiles == TILES_MIPMAPS:
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self.has_mipmaps = True
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self.main_img = self.get_n64_img(
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texbuf,
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self.main_fmt,
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self.main_depth,
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self.main_width,
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self.main_height,
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)
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# read mipmaps
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self.mipmaps = []
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divisor = 2
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if self.main_width >= (32 >> self.main_depth):
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while True:
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if (self.main_width // divisor) <= 0:
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break
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mmw = self.main_width // divisor
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mmh = self.main_height // divisor
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mipmap = self.get_n64_img(texbuf, self.main_fmt, self.main_depth, mmw, mmh)
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self.mipmaps.append(mipmap)
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divisor = divisor * 2
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if (self.main_width // divisor) < (16 >> self.main_depth):
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break
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# read palette and assign to all images
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if self.main_fmt == FMT_CI:
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shared_pal = self.get_n64_pal(texbuf, self.main_fmt, self.main_depth)
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self.main_img.palette = shared_pal
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for mipmap in self.mipmaps:
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mipmap.palette = shared_pal
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# main + aux (shared attributes)
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elif self.extra_tiles == TILES_SHARED_AUX:
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self.has_aux = True
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self.main_img = self.get_n64_img(
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texbuf,
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self.main_fmt,
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self.main_depth,
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self.main_width,
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self.main_height // 2,
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)
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self.aux_img = self.get_n64_img(
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texbuf,
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self.main_fmt,
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self.main_depth,
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self.main_width,
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self.main_height // 2,
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)
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if self.main_fmt == FMT_CI:
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shared_pal = self.get_n64_pal(texbuf, self.main_fmt, self.main_depth)
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self.main_img.palette = shared_pal
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self.aux_img.palette = shared_pal
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# main + aux (independent attributes)
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elif self.extra_tiles == TILES_INDEPENDENT_AUX:
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self.has_aux = True
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# read main
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self.main_img = self.get_n64_img(
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texbuf,
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self.main_fmt,
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self.main_depth,
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self.main_width,
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self.main_height,
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)
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if self.main_fmt == FMT_CI:
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pal = self.get_n64_pal(texbuf, self.main_fmt, self.main_depth)
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self.main_img.palette = pal
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# read aux
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self.aux_img = self.get_n64_img(texbuf, self.aux_fmt, self.aux_depth, self.aux_width, self.aux_height)
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if self.aux_fmt == FMT_CI:
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self.aux_img.palette = self.get_n64_pal(texbuf, self.aux_fmt, self.aux_depth)
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# constructs a dictionary entry for the tex archive for this texture
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def get_json_entry(self):
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out = {}
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out["name"] = self.img_name
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out["main"] = {
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"format": get_format_name(self.main_fmt, self.main_depth),
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"hwrap": wrap_modes.get(self.main_hwrap),
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"vwrap": wrap_modes.get(self.main_vwrap),
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}
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if self.has_aux:
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if self.extra_tiles == TILES_SHARED_AUX:
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out["aux"] = {
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"format": "Shared",
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"hwrap": wrap_modes.get(self.aux_hwrap),
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"vwrap": wrap_modes.get(self.aux_vwrap),
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}
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else:
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out["aux"] = {
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"format": get_format_name(self.aux_fmt, self.aux_depth),
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"hwrap": wrap_modes.get(self.aux_hwrap),
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"vwrap": wrap_modes.get(self.aux_vwrap),
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}
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if self.has_mipmaps:
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out["hasMipmaps"] = True
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if self.filter_mode == 2:
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out["filter"] = True
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out["combine"] = AUX_COMBINE_MODES.get(self.combine_mode)
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if self.is_variant:
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out["variant"] = True
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return out
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def save_images(self, tex_path):
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self.main_img.write(tex_path / f"{self.img_name}.png")
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if self.has_aux:
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self.aux_img.write(tex_path / f"{self.img_name}_AUX.png")
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if self.has_mipmaps:
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for idx, mipmap in enumerate(self.mipmaps):
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mipmap.write(tex_path / f"{self.img_name}_MM{idx + 1}.png")
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def read_json_img(self, img_data, tile_name, img_name):
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fmt_str = img_data.get("format")
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if fmt_str == None:
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raise Exception(f"Texture {img_name} is missing 'format' for '{tile_name}'")
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hwrap_str = img_data.get("hwrap", "Missing")
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hwrap = wrap_modes_inv.get(hwrap_str)
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if hwrap == None:
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raise Exception(f"Texture {img_name} has invalid 'hwrap' for '{tile_name}'")
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vwrap_str = img_data.get("vwrap", "Missing")
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vwrap = wrap_modes_inv.get(vwrap_str)
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if vwrap == None:
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raise Exception(f"Texture {img_name} has invalid 'vwrap' for '{tile_name}'")
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return fmt_str, hwrap, vwrap
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def get_img_file(self, fmt_str, img_file: str):
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def pack_color(r, g, b, a):
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r = r >> 3
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g = g >> 3
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b = b >> 3
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a = a >> 7
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return (r << 11) | (g << 6) | (b << 1) | a
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(out_img, out_w, out_h) = Converter(mode=fmt_str.lower(), infile=img_file, flip_y=True).convert()
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out_pal = bytearray()
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if fmt_str == "CI4" or fmt_str == "CI8":
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img = png.Reader(img_file)
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img.preamble(True)
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palette = img.palette(alpha="force")
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# load_texture_by_name assumes palettes have a particular length
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palette_count = (0x20 if fmt_str == "CI4" else 0x200) // 2
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if len(palette) > palette_count:
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palette = palette[:palette_count]
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print(f"warning: {self.img_name} has more than {palette_count} colors, truncating")
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elif len(palette) < palette_count:
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palette += [(0, 0, 0, 0)] * (palette_count - len(palette))
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for rgba in palette:
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if rgba[3] not in (0, 0xFF):
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print(f"warning: alpha mask mode but {self.img_name} has translucent pixels")
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color = pack_color(*rgba)
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out_pal += color.to_bytes(2, byteorder="big")
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return (out_img, out_pal, out_w, out_h)
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# write texture header and image raster/palettes to byte array
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def add_bytes(self, tex_name: str, bytes: bytearray):
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pos = len(bytes)
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# write name to header
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name_bytes = self.img_name.encode("ascii")
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bytes += name_bytes
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# pad name out to 32 bytes
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pad_len = 32 - len(name_bytes)
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assert pad_len > 0
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bytes += b"\0" * pad_len
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# write header fields
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bytes += struct.pack(
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">HHHHBBBBBBBB",
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self.aux_width,
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self.main_width,
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self.aux_height,
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self.main_height,
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self.is_variant,
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self.extra_tiles,
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self.combine,
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self.pack_byte(self.aux_fmt, self.main_fmt),
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self.pack_byte(self.aux_depth, self.main_depth),
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self.pack_byte(self.aux_hwrap, self.main_hwrap),
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self.pack_byte(self.aux_vwrap, self.main_vwrap),
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self.filter_mode,
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)
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# write rasters and palettes
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if self.extra_tiles == TILES_BASIC:
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bytes += self.main_img
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if self.main_fmt == FMT_CI:
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bytes += self.main_pal
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elif self.extra_tiles == TILES_MIPMAPS:
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bytes += self.main_img
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for mipmap in self.mipmaps:
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bytes += mipmap
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if self.main_fmt == FMT_CI:
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bytes += self.main_pal
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elif self.extra_tiles == TILES_SHARED_AUX:
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bytes += self.main_img
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bytes += self.aux_img
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if self.main_fmt == FMT_CI:
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bytes += self.main_pal
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elif self.extra_tiles == TILES_INDEPENDENT_AUX:
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bytes += self.main_img
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if self.main_fmt == FMT_CI:
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bytes += self.main_pal
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bytes += self.aux_img
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if self.aux_fmt == FMT_CI:
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bytes += self.aux_pal
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size = len(bytes) - pos
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assert size == self.expected_size(), f"{self.img_name}: size mismatch: {size} != {self.expected_size()}"
|
|
|
|
def expected_size(self) -> int:
|
|
"""
|
|
Uses logic from load_texture_by_name to calculate the expected size.
|
|
"""
|
|
|
|
raster_size = self.main_width * self.main_height
|
|
|
|
# compute mipmaps size
|
|
if self.main_depth == DEPTH_4_BIT:
|
|
if self.has_mipmaps:
|
|
divisor = 2
|
|
while self.main_width // divisor >= 16 and self.main_height // divisor > 0:
|
|
raster_size += self.main_width // divisor * self.main_height // divisor
|
|
divisor *= 2
|
|
raster_size //= 2
|
|
elif self.main_depth == DEPTH_8_BIT:
|
|
if self.has_mipmaps:
|
|
divisor = 2
|
|
while self.main_width // divisor >= 8 and self.main_height // divisor > 0:
|
|
raster_size += self.main_width // divisor * self.main_height // divisor
|
|
divisor *= 2
|
|
elif self.main_depth == DEPTH_16_BIT:
|
|
if self.has_mipmaps:
|
|
divisor = 2
|
|
while self.main_width // divisor >= 4 and self.main_height // divisor > 0:
|
|
raster_size += self.main_width // divisor * self.main_height // divisor
|
|
divisor *= 2
|
|
raster_size *= 2
|
|
elif self.main_depth == DEPTH_32_BIT:
|
|
if self.has_mipmaps:
|
|
divisor = 2
|
|
while self.main_width // divisor >= 2 and self.main_height // divisor > 0:
|
|
raster_size += self.main_width // divisor * self.main_height // divisor
|
|
divisor *= 2
|
|
raster_size *= 4
|
|
|
|
# compute palette size
|
|
if self.main_fmt == FMT_CI:
|
|
palette_size = 0x20
|
|
if self.main_depth == DEPTH_8_BIT:
|
|
palette_size = 0x200
|
|
else:
|
|
palette_size = 0
|
|
|
|
# compute aux tile size
|
|
if self.extra_tiles == TILES_INDEPENDENT_AUX:
|
|
aux_raster_size = self.aux_width * self.aux_height
|
|
if self.aux_depth == DEPTH_4_BIT:
|
|
aux_raster_size //= 2
|
|
elif self.aux_depth == DEPTH_16_BIT:
|
|
aux_raster_size *= 2
|
|
elif self.aux_depth == DEPTH_32_BIT:
|
|
aux_raster_size *= 4
|
|
|
|
if self.aux_fmt == FMT_CI:
|
|
aux_palette_size = 0x20
|
|
if self.aux_depth == DEPTH_8_BIT:
|
|
aux_palette_size = 0x200
|
|
else:
|
|
aux_palette_size = 0
|
|
else:
|
|
aux_palette_size = 0
|
|
aux_raster_size = 0
|
|
|
|
return raster_size + palette_size + 48 + aux_raster_size + aux_palette_size
|
|
|
|
|
|
class TexArchive:
|
|
@staticmethod
|
|
def extract(bytes, tex_path: Path):
|
|
textures = []
|
|
texbuf = TexBuffer(bytes)
|
|
|
|
while texbuf.remaining() > 0:
|
|
img = TexImage()
|
|
img.from_bytes(texbuf)
|
|
textures.append(img)
|
|
|
|
tex_path.mkdir(parents=True, exist_ok=True)
|
|
|
|
out = []
|
|
for texture in textures:
|
|
texture.save_images(tex_path)
|
|
out.append(texture.get_json_entry())
|
|
|
|
json_out = json.dumps(out, sort_keys=False, indent=4)
|
|
|
|
json_fn = str(tex_path) + ".json"
|
|
with open(json_fn, "w") as f:
|
|
f.write(json_out)
|