AskaEth
d322404e5a
PIL draws full-width punctuation offset inside the advance box (e.g. left bracket '（' ink sits at x+42..x+61 while its advance is only 0.45em), so the next glyph overlapped it and a trailing bracket could clip. Shift the draw x by the ink offset for narrow punctuation and add right padding so line ends never clip. Verified: bracket gap restored, line end intact.
880 lines
36 KiB
Python
880 lines
36 KiB
Python
#!/usr/bin/env python3
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"""
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ppl2psd.py — Convert Photo Editor (dev.macgyver, com.iudesk.android.photo.editor)
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multi-layer project files (.ppl) to Adobe Photoshop PSD.
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.ppl is a ZIP archive containing:
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- layers.ini : INI-style description of every layer (bitmap/shape/text)
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- *.img : layer bitmaps as PNG (referenced via uri=@name.img)
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The converter rasterizes every layer (bitmaps, gradient rounded-rect shapes,
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text rendered with the original custom fonts when available), then writes a
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valid PSD with one independent layer per project layer, preserving order,
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position, opacity, visibility and blend mode.
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Usage:
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python ppl2psd.py input.ppl [-o output.psd] [--preview preview.png]
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"""
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import argparse
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import math
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import os
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import re
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import struct
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import sys
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import urllib.parse
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import zipfile
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from pathlib import Path
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from typing import List, Optional, Tuple
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from PIL import Image, ImageDraw, ImageFont
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from tqdm import tqdm
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try:
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import numpy as np
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except ImportError: # pragma: no cover
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np = None
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# Optional TypeLayer (editable text) support
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try:
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from psd_tools.psd.tagged_blocks import TypeToolObjectSetting
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from psd_tools.psd.engine_data import (String, Float, Integer, Bool,
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Dict, List)
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_TYSHA = True
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except ImportError: # pragma: no cover
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_TYSHA = False
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# --------------------------------------------------------------------------
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# Fonts
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# --------------------------------------------------------------------------
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FONT_ROOT = Path("/storage/emulated/0/Fonts")
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FALLBACK_FONT = "/system/fonts/NotoSansCJK-Regular.ttc"
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# Per-font rendering profiles, calibrated against a full-resolution export
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# from the app:
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# k - font size multiplier (app px = textSize * k)
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# coef - advance multiplier (full-width glyphs, half-width glyphs); the app
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# renders Source Han ExtraLight/Sans ~3% narrower than the font
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# advance, so we scale per character class
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# ls - letter spacing as a fraction of textSize
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FONT_PROFILES = [
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(("SourceHanSerifCN-ExtraLight",), dict(k=0.80, coef=(1.0, 1.05), ls=0.0, narrow=True)),
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(("SourceHanSansCN",), dict(k=1.00, coef=(1.0, 1.05), ls=0.0, narrow=True)),
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(("SourceHanSerifCN-Heavy",), dict(k=0.80, coef=(1.0, 1.0), ls=0.0)),
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(("SourceHanSerifCN",), dict(k=0.80, coef=(1.0, 1.0), ls=0.09)),
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(("汉仪花冠",), dict(k=0.80, coef=(1.0, 1.0), ls=0.09)),
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(("AaMaShangXingKai",), dict(k=0.84, coef=(1.0, 1.0), ls=0.0)),
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((), dict(k=0.80, coef=(1.0, 1.0), ls=0.09)), # fallback
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]
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def font_profile(font_path: str) -> dict:
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name = os.path.basename(font_path or "")
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for keys, prof in FONT_PROFILES:
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if any(k in name for k in keys):
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return prof
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return FONT_PROFILES[-1][1]
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def _is_fullwidth(ch: str) -> bool:
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"""CJK / full-width punctuation (advance ~1em)."""
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return ord(ch) > 0x2E80 or ch in "（）“”·—…"
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# Narrow full-width punctuation: PIL reports 1em advance but the app renders
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# these glyphs far narrower (e.g. brackets ~0.45em), verified against the app
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# export where '（' measures ~29px vs 65px em.
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NARROW_PUNCT = set("（）()“”‘’《》【】、，。！？：；·—…")
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def resolve_font(spec: str) -> str:
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"""Map a textFont= spec like '*思源宋体/SourceHanSerifCN-ExtraLight.otf'
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to a real font file under FONT_ROOT, falling back to the system CJK font."""
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spec = spec.lstrip("*")
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name = spec.split("/")[-1]
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if FONT_ROOT.is_dir():
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# 1) exact relative path under FONT_ROOT
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cand = FONT_ROOT / spec
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if cand.is_file():
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return str(cand)
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# 2) recursive filename match
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for hit in FONT_ROOT.rglob(name):
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if hit.is_file():
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return str(hit)
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if os.path.isfile(FALLBACK_FONT):
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return FALLBACK_FONT
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return None
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# --------------------------------------------------------------------------
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# Parsing
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# --------------------------------------------------------------------------
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def parse_layers(text: str) -> Tuple[List[dict], List[dict]]:
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"""Parse layers.ini -> (layers, groups), each ordered bottom -> top.
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Groups are [group] sections; layers carry a groupId field."""
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layers, groups = [], []
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for block in re.split(r"\n(?=\[)", text):
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if not block.startswith("["):
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continue
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m = re.match(r"\[(\w+)\]", block)
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if not m:
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continue
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ly = {"_type": m.group(1)}
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for kv in re.finditer(r"^(\w+)=(.*)$", block, re.M):
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ly[kv.group(1)] = kv.group(2)
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if m.group(1) == "group":
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groups.append(ly)
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else:
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layers.append(ly)
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return layers, groups
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def argb_to_rgba(v: int) -> Tuple[int, int, int, int]:
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"""Signed 32-bit ARGB int (as stored by the app) -> RGBA tuple."""
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v &= 0xFFFFFFFF
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return ((v >> 16) & 0xFF, (v >> 8) & 0xFF, v & 0xFF, (v >> 24) & 0xFF)
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def parse_gradient(spec: str) -> dict:
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"""Decode 'type=gd&gd=...&gm=...&angle=..&gs=..' style color spec.
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Returns {'type': 'solid'|'gradient', 'colors': [(pos, rgba), ...],
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'angle': float}. gd= holds color stops, gm= maps stop
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positions ('-1:0.0,...'), angle is the gradient direction in degrees."""
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q = urllib.parse.unquote(spec)
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fields = dict(kv.split("=", 1) for kv in q.split("&") if "=" in kv)
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colors = []
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for i, c in enumerate(fields.get("gd", "").split(",")):
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c = c.strip()
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if not c or not c.lstrip("-").isdigit():
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continue
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# optional alpha suffix tokens like 'A0'/'A1' are not colors - skip
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colors.append(argb_to_rgba(int(c)))
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angle = float(fields.get("angle", 180) or 180)
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if not colors:
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return {"type": "solid", "colors": [(0, (0, 0, 0, 255))], "angle": 0}
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if all(c == colors[0] for c in colors):
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return {"type": "solid", "colors": [(0, colors[0])], "angle": 0}
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# build (pos, color) stops: distribute evenly if no gm= info
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stops = [(i / max(1, len(colors) - 1), c) for i, c in enumerate(colors)]
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return {"type": "gradient", "colors": stops, "angle": angle}
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# --------------------------------------------------------------------------
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# Layer rendering
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# --------------------------------------------------------------------------
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def bounding_rect(ly: dict) -> Tuple[float, float, float, float]:
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"""boundingRect is (left, top, right, bottom), not (x, y, w, h)."""
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l, t, r, b = (float(v) for v in ly["boundingRect"].split(","))
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return l, t, r, b
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def crop_to_canvas(l: float, t: float, r: float, b: float, cw: int, ch: int
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) -> Optional[Tuple[int, int, int, int]]:
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"""Intersect a float (l, t, r, b) rect with the canvas; return int rect."""
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ix0, iy0 = math.floor(l), math.floor(t)
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ix1, iy1 = math.ceil(r), math.ceil(b)
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ix0, iy0 = max(0, ix0), max(0, iy0)
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ix1, iy1 = min(cw, ix1), min(ch, iy1)
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if ix1 <= ix0 or iy1 <= iy0:
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return None
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return ix0, iy0, ix1, iy1
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def make_linear_gradient(w: int, h: int, grad: dict) -> Image.Image:
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"""Build an RGBA image filled with the linear gradient."""
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stops = grad["colors"]
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angle = math.radians(grad["angle"])
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dx, dy = math.sin(angle), -math.cos(angle)
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yy, xx = np.mgrid[0:h, 0:w].astype(np.float64)
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proj = xx * dx + yy * dy
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pmin, pmax = proj.min(), proj.max()
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t = (proj - pmin) / (pmax - pmin) if pmax > pmin else np.zeros_like(proj)
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# sample colors per channel across stops
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chans = []
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for ci in range(4):
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vals = np.zeros(h * w, dtype=np.float64)
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ts = t.ravel()
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for k, ((p0, c0), (p1, c1)) in enumerate(zip(stops, stops[1:])):
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seg = (ts >= p0) & (ts <= p1)
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f = (ts[seg] - p0) / (p1 - p0) if p1 > p0 else 0.0
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vals[seg] = c0[ci] * (1 - f) + c1[ci] * f
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chans.append(vals.reshape(h, w))
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arr = np.stack(chans, axis=-1).astype(np.uint8)
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return Image.fromarray(arr, "RGBA")
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def render_bitmap(ly: dict, img_path: Path, cw: int, ch: int
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) -> Optional[Tuple[Image.Image, Tuple[int, int]]]:
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l, t, r, b = bounding_rect(ly)
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rect = crop_to_canvas(l, t, r, b, cw, ch)
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if rect is None:
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return None
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ix0, iy0, ix1, iy1 = rect
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w, h = r - l, b - t
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with Image.open(img_path) as src:
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src = src.convert("RGBA")
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# stretch the bitmap onto the layer rect, then crop to canvas
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layer = src.resize((max(1, int(round(w))), max(1, int(round(h)))),
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Image.LANCZOS)
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L, T = math.floor(l), math.floor(t)
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layer = layer.crop((ix0 - L, iy0 - T, ix1 - L, iy1 - T))
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apply_opacity(layer, ly.get("alpha", 255))
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return layer, (ix0, iy0)
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def render_shape(ly: dict, cw: int, ch: int) -> Optional[Tuple[Image.Image, Tuple[int, int]]]:
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l, t, r, b = bounding_rect(ly)
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rect = crop_to_canvas(l, t, r, b, cw, ch)
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if rect is None:
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return None
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ix0, iy0, ix1, iy1 = rect
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ww, hh = ix1 - ix0, iy1 - iy0
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img = Image.new("RGBA", (ww, hh), (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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shape_type = ly.get("shapeType", "Rect")
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round_v = ly.get("round")
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radius = 0
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if shape_type == "Circle":
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radius = min(ww, hh) // 2
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elif round_v:
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# round is a percentage (0-100) of the smaller side
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radius = int(min(r - l, b - t) * float(round_v) / 100)
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r_ = max(0, min(radius, min(ww, hh) // 2))
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bbox = (0, 0, ww - 1, hh - 1)
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grad = parse_gradient(ly.get("shapeColor", ""))
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mask = Image.new("L", (ww, hh), 0)
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ImageDraw.Draw(mask).rounded_rectangle(bbox, radius=r_, fill=255)
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if grad["type"] == "solid":
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fill = grad["colors"][0][1]
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draw.rounded_rectangle(bbox, radius=r_, fill=fill)
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else:
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grad_img = make_linear_gradient(ww, hh, grad)
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img.paste(grad_img, (0, 0), mask)
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# stroke
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thickness = int(float(ly.get("shapeStrokeThickness", "0") or 0))
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if thickness > 0:
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stroke = parse_gradient(ly.get("shapeStrokeColor", ""))
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if stroke["type"] == "solid":
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draw.rounded_rectangle(bbox, radius=r_, outline=stroke["colors"][0][1],
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width=thickness)
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else:
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draw.rounded_rectangle(bbox, radius=r_, outline=(0, 0, 0, 255),
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width=thickness)
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apply_opacity(img, ly.get("alpha", 255))
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return img, (ix0, iy0)
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def _font_path_for(ly: dict) -> str:
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spec = ly.get("textFont", "")
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return resolve_font(spec)
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def render_text(ly: dict, cw: int, ch: int) -> Optional[Tuple[Image.Image, Tuple[int, int]]]:
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"""Render a text layer at its natural size, centered on the boundingRect.
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Photo Editor does not clip text to the layer box (text may overflow), so
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we render without cropping; only the part outside the canvas is removed.
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Calibration: the app renders glyphs at textSize * 0.80 (verified against a
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full-resolution app export: PIL glyphs were 1.24x the app's on both axes),
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and applies letter-spacing of textLetterSpacing% of textSize per glyph.
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"""
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l, t, r, b = bounding_rect(ly)
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text = ly.get("text", "") or ""
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text = urllib.parse.unquote(text) # e.g. '%0a' -> newline (vertical text)
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if not text:
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return None
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size_raw = float(ly.get("textSize", "12") or 12)
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font_path = _font_path_for(ly)
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prof = font_profile(font_path)
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size = size_raw * prof["k"]
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if font_path:
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font = ImageFont.truetype(font_path, int(size))
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else:
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font = ImageFont.load_default(size=int(size))
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ls = size_raw * prof["ls"]
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coef = prof["coef"]
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def char_advance(ch_: str, leading: bool = False) -> float:
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"""Width to advance after a character (app-scaled font advance)."""
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adv = probe.textlength(ch_, font=font)
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if prof.get("narrow"):
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if ch_ == " ":
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# app renders spaces ~1.29x the font advance (0.335em vs 0.26em)
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return adv * 1.29
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if ch_ in NARROW_PUNCT:
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# app renders full-width punctuation far narrower than 1em
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return adv * 0.45
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if ch_.isdigit():
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# app digits are not tabular: '0/3/5...' ~1.07em, '1' ~0.98em
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return adv * (0.98 if ch_ == "1" else 1.07)
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c = coef[0] if _is_fullwidth(ch_) else coef[1]
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return adv * c
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grad = parse_gradient(ly.get("textColor", ""))
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fill = grad["colors"][0][1] if grad["colors"] else (0, 0, 0, 255)
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# --- measure natural text size (multi-line aware, per-char spacing) ---
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lines = text.split("\n")
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# line height never below the font size, otherwise glyphs overlap and
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# the last line gets clipped at the image bottom (vertical text)
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line_h = max(size * float(ly.get("textLineHeight", "100") or 100) / 100.0,
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size)
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probe = ImageDraw.Draw(Image.new("RGBA", (1, 1)))
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widths = []
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for ln in lines:
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w = 0.0
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for ch_ in ln:
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w += char_advance(ch_) + ls
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widths.append(w)
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tw = max(widths) if widths else 0.0
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th = len(lines) * line_h + size * 0.25 # slack so the last line never clips
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# --- render at natural size, centered on the layer box ---
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# faux bold (textFontStyle=1) via stroke width
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stroke_w = max(1, int(size / 40)) if ly.get("textFontStyle") == "1" else 0
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pad = stroke_w # room for the stroke so glyphs don't clip
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tail = max(int(size * 0.3), 8) # right padding so the last glyph never clips
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raw_w, raw_h = max(1, int(round(tw)) + 2 * pad + tail), max(1, int(round(th)) + 2 * pad)
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img = Image.new("RGBA", (raw_w, raw_h), (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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for i, ln in enumerate(lines):
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x = pad
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for ch_ in ln:
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off = 0
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if ch_ in NARROW_PUNCT:
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# PIL draws full-width punctuation offset inside the advance
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# box (e.g. '（' ink sits at x+42..x+61). Shift the draw x so
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# the ink starts at the layout x; otherwise it overlaps the
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# next glyph or clips at line end.
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t_img = Image.new("RGBA", (int(size) + 16, int(size) + 16), (0, 0, 0, 0))
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ImageDraw.Draw(t_img).text((4, 4), ch_, font=font,
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fill=(255, 255, 255, 255))
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t_bb = t_img.getchannel("A").getbbox()
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off = t_bb[0] - 4 if t_bb else 0
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draw.text((x - off, pad + int(round(i * line_h))), ch_, font=font,
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fill=fill, stroke_width=stroke_w, stroke_fill=fill)
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x += char_advance(ch_) + ls
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# center on the boundingRect. Narrow-profile fonts (Source Han
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# ExtraLight/Sans) are centered on the full advance width like the app;
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# other fonts are centered on the glyph content (verified against the app
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# export for the title layers).
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cx, cy = (l + r) / 2, (t + b) / 2
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if prof.get("narrow"):
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# center on the advance width (excluding the clip-padding tail)
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left_full = int(round(cx - (tw + 2 * pad) / 2))
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top_full = int(round(cy - raw_h / 2))
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content = img.getchannel("A").getbbox()
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if content:
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img = img.crop(content)
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left = left_full + content[0]
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top = top_full + content[1]
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else:
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left, top = left_full, top_full
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else:
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# trim to glyph content first, then center the trimmed box
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content = img.getchannel("A").getbbox()
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if content:
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img = img.crop(content)
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left = int(round(cx - img.width / 2))
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top = int(round(cy - img.height / 2))
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# clip only to the canvas
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ix0, iy0 = max(0, left), max(0, top)
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ix1 = min(cw, left + img.width)
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iy1 = min(ch, top + img.height)
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if ix1 <= ix0 or iy1 <= iy0:
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return None
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img = img.crop((ix0 - left, iy0 - top, ix1 - left, iy1 - top))
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apply_opacity(img, ly.get("alpha", 255))
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return img, (ix0, iy0)
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def apply_opacity(img: Image.Image, alpha: str) -> None:
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"""Multiply the image alpha channel by the layer opacity (0-255)."""
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try:
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a = int(alpha)
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except (TypeError, ValueError):
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return
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if a >= 255:
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return
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alpha_ch = img.getchannel("A").point(lambda p: p * a // 255)
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img.putalpha(alpha_ch)
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# --------------------------------------------------------------------------
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# PSD writer
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# --------------------------------------------------------------------------
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def packbits(data: bytes) -> bytes:
|
||
"""PackBits (the PSD RLE flavour): literal runs up to 128 bytes,
|
||
repeated-byte runs up to 128 bytes, skip codes are not emitted."""
|
||
n = len(data)
|
||
out = bytearray()
|
||
i = 0
|
||
while i < n:
|
||
b = data[i]
|
||
j = i + 1
|
||
while j < n and j - i < 128 and data[j] == b:
|
||
j += 1
|
||
run = j - i
|
||
if run >= 2:
|
||
out.append((1 - run) & 0xFF) # signed negative count
|
||
out.append(b)
|
||
i = j
|
||
else:
|
||
start = i
|
||
j = i + 1
|
||
while j < n and j - start < 128 and data[j] != data[j - 1]:
|
||
j += 1
|
||
lit = j - start
|
||
out.append(lit - 1)
|
||
out += data[start:j]
|
||
i = j
|
||
return bytes(out)
|
||
|
||
|
||
def _pack_channel_worker(args):
|
||
plane, w = args
|
||
h = len(plane) // w
|
||
rows = []
|
||
for y in range(h):
|
||
rows.append(packbits(plane[y * w:(y + 1) * w]))
|
||
sizes = struct.pack(">%dH" % h, *[len(r) for r in rows])
|
||
return b"\x00\x01" + sizes + b"".join(rows) # compression=1 (RLE)
|
||
|
||
|
||
def channel_blocks(img: Image.Image, workers: int,
|
||
progress: Optional[tqdm] = None) -> List[Tuple[int, bytes]]:
|
||
"""RLE-encode the planes of a cropped RGB(A) layer (parallel).
|
||
|
||
RGBA layers yield channel ids [-1, 0, 1, 2], RGB images yield [0, 1, 2]."""
|
||
arr = np.asarray(img) if np is not None else None
|
||
if arr is not None and arr.ndim == 3:
|
||
nch = arr.shape[2]
|
||
if nch == 4:
|
||
# zero RGB where alpha==0 for better compression
|
||
arr = arr.copy()
|
||
arr[arr[..., 3] == 0] = 0
|
||
# PSD layer channel ids: -1=alpha mask, 0=R, 1=G, 2=B
|
||
planes = [arr[..., 3].tobytes()] + [arr[..., i].tobytes() for i in range(3)]
|
||
else:
|
||
planes = [arr[..., i].tobytes() for i in range(nch)]
|
||
else:
|
||
bands = img.getbands()
|
||
if bands == ("R", "G", "B", "A"):
|
||
planes = [img.getchannel("A").tobytes()] + \
|
||
[img.getchannel(c).tobytes() for c in "RGB"]
|
||
else:
|
||
planes = [img.getchannel(c).tobytes() for c in bands]
|
||
w = img.width
|
||
jobs = [(plane, w) for plane in planes]
|
||
if workers > 1 and len(jobs) > 1:
|
||
from multiprocessing import Pool
|
||
with Pool(workers) as pool:
|
||
enc = []
|
||
for res in pool.imap(_pack_channel_worker, jobs, chunksize=1):
|
||
enc.append(res)
|
||
if progress:
|
||
progress.update(1)
|
||
else:
|
||
enc = []
|
||
for j in jobs:
|
||
enc.append(_pack_channel_worker(j))
|
||
if progress:
|
||
progress.update(1)
|
||
ids = [-1, 0, 1, 2] if img.mode == "RGBA" else [0, 1, 2]
|
||
return list(zip(ids, enc))
|
||
|
||
|
||
def font_ps_name(font_path: str) -> str:
|
||
"""PostScript name of a font file (what Photoshop matches)."""
|
||
try:
|
||
from fontTools.ttLib import TTFont
|
||
f = TTFont(font_path)
|
||
ps = f["name"].getDebugName(6)
|
||
return ps or os.path.basename(font_path)
|
||
except Exception:
|
||
return os.path.basename(font_path)
|
||
|
||
|
||
def build_type_layer_tysh(ly: dict, font_ps: str) -> bytes:
|
||
"""Build a TySh (TypeTool object setting) block for an editable text layer
|
||
by mutating the reference template's engine data."""
|
||
tmpl = Path(__file__).parent / "tools_tysh_template.bin"
|
||
raw = tmpl.read_bytes()
|
||
tysh = TypeToolObjectSetting.frombytes(raw[12:]) # strip 8BIMTySh header
|
||
td = tysh.text_data
|
||
ed = td[b"EngineData"].value
|
||
eng = ed["EngineDict"]
|
||
res = ed["ResourceDict"]
|
||
editor = eng["Editor"]
|
||
|
||
text = urllib.parse.unquote(ly.get("text", "") or "")
|
||
editor["Text"] = String(text + "\r")
|
||
# Txt (legacy text) value mirrors the engine text so readers agree
|
||
td[b"Txt "].value = text + "\x00"
|
||
|
||
prof = font_profile(_font_path_for(ly))
|
||
size_px = float(ly.get("textSize", "12") or 12) * prof["k"]
|
||
ssd = eng["StyleRun"]["RunArray"][0]["StyleSheet"]["StyleSheetData"]
|
||
ssd["FontSize"] = Float(size_px)
|
||
|
||
grad = parse_gradient(ly.get("textColor", ""))
|
||
r, g, b, a = grad["colors"][0][1]
|
||
fc = Dict()
|
||
fc["Type"] = Integer(1)
|
||
fc["Values"] = List([Float(r / 255.0), Float(g / 255.0),
|
||
Float(b / 255.0), Float(a / 255.0)])
|
||
ssd["FillColor"] = fc
|
||
|
||
# bold / italic (textFontStyle: 1 = faux bold)
|
||
if ly.get("textFontStyle") == "1":
|
||
ssd["FauxBold"] = Bool(True)
|
||
|
||
res["FontSet"][0]["Name"] = String(font_ps)
|
||
|
||
l, t, rr, bb2 = bounding_rect(ly)
|
||
tysh.transform = [1.0, 0.0, 0.0, 1.0, float(l), float(t)]
|
||
tysh.left, tysh.top, tysh.right, tysh.bottom = int(l), int(t), int(rr), int(bb2)
|
||
# boundingBox is relative to the transform origin; PS shows the text at
|
||
# transform(boundingBox). Set it to (0,0)-(w,h) so the text lands on the
|
||
# ppl boundingRect (verified: l.psd display pos = transform x boundingBox).
|
||
bbd = td[b"boundingBox"]
|
||
bbd[b"Left"].value = 0.0
|
||
bbd[b"Top "].value = 0.0
|
||
bbd[b"Rght"].value = float(rr - l)
|
||
bbd[b"Btom"].value = float(bb2 - t)
|
||
return tysh.tobytes()
|
||
|
||
|
||
def _standard_blocks(layer_id: int) -> bytes:
|
||
"""Standard tagged blocks Photoshop writes for every layer. PS reads
|
||
tagged blocks until it hits a non-8BIM signature; with only 'luni' the
|
||
next bytes are channel data and PS mis-parses the record, so we write
|
||
the usual block set like PS itself does."""
|
||
items = [
|
||
(b"lnsr", b"\x00\x00\x00\x00"), # name source
|
||
(b"lyid", struct.pack(">I", layer_id)), # layer id
|
||
(b"clbl", b"\x00\x00\x00\x00"), # blend clipping
|
||
(b"infx", b"\x00\x00\x00\x00"), # blend interior
|
||
(b"knko", b"\x00\x00\x00\x00"), # knockout
|
||
(b"lspf", b"\x00\x00\x00\x00"), # protected
|
||
(b"lclr", b"\x00" * 8), # sheet color
|
||
(b"fxrp", b"\x00" * 16), # reference point
|
||
]
|
||
out = bytearray()
|
||
for key, payload in items:
|
||
out += b"8BIM" + key + struct.pack(">I", len(payload)) + payload
|
||
return bytes(out)
|
||
|
||
|
||
def _layer_record(top, left, bottom, right, name, opacity, visible, channels,
|
||
layer_id=1, tysh: Optional[bytes] = None,
|
||
lsct: Optional[int] = None) -> bytes:
|
||
rec = bytearray()
|
||
rec += struct.pack(">4i", top, left, bottom, right)
|
||
rec += struct.pack(">H", len(channels))
|
||
for ch_id, payload in channels:
|
||
rec += struct.pack(">hI", ch_id, len(payload))
|
||
rec += b"8BIM" + b"norm"
|
||
rec += struct.pack(">B", opacity)
|
||
rec += struct.pack(">B", 0) # clipping
|
||
# flags: bit3 = 1 for Photoshop 5.0+ (tells PS the extra data contains
|
||
# tagged blocks); bit1 = hidden
|
||
rec += struct.pack(">B", 0x08 | (0 if visible else 0x02))
|
||
rec += struct.pack(">B", 0) # filler
|
||
# extra data
|
||
extra = bytearray()
|
||
extra += struct.pack(">I", 0) # layer mask data length
|
||
# blending ranges: composite + 4 channels, ALL full range (0..65535).
|
||
# PS writes these as 0x0000/0xffff; a zero composite range tells PS the
|
||
# layer does not participate in blending -> the canvas renders empty.
|
||
extra += struct.pack(">I", 40) + b"\x00\x00\xff\xff\x00\x00\xff\xff" * 5
|
||
nb = name.encode("utf-8")
|
||
extra += bytes([min(len(nb), 255)]) + nb[:255]
|
||
# pad pascal string to a multiple of 4 bytes
|
||
pad = (-len(extra)) % 4
|
||
if pad:
|
||
extra += b"\x00" * pad
|
||
# luni: unicode layer name. Data = 4-byte CHARACTER count + utf-16-be
|
||
# chars. (Writing raw utf-16 without the count shifts the extra-data
|
||
# parse and Photoshop reads every layer's pixels as empty.)
|
||
uni = name.encode("utf-16-be")
|
||
luni_data = struct.pack(">I", len(uni) // 2) + uni
|
||
extra += b"8BIMluni" + struct.pack(">I", len(luni_data)) + luni_data
|
||
# TySh: makes this an editable text layer in Photoshop
|
||
if tysh:
|
||
extra += b"8BIMTySh" + struct.pack(">I", len(tysh)) + tysh
|
||
# lsct: layer section divider (1=group open, 3=group close)
|
||
if lsct is not None:
|
||
from psd_tools.psd.tagged_blocks import SectionDividerSetting
|
||
from psd_tools.constants import SectionDivider, BlendMode
|
||
kind = (SectionDivider.OPEN_FOLDER if lsct == 1
|
||
else SectionDivider.BOUNDING_SECTION_DIVIDER)
|
||
sd = SectionDividerSetting(kind=kind, signature=b"8BIM",
|
||
blend_mode=BlendMode.NORMAL)
|
||
sd_data = sd.tobytes()
|
||
extra += b"8BIMlsct" + struct.pack(">I", len(sd_data)) + sd_data
|
||
# standard blocks Photoshop expects (see _standard_blocks)
|
||
extra += _standard_blocks(layer_id)
|
||
rec += struct.pack(">I", len(extra))
|
||
rec += extra
|
||
return bytes(rec)
|
||
|
||
|
||
def build_psd(layers, width: int, height: int, out_path: str, workers: int,
|
||
progress: Optional[tqdm] = None) -> None:
|
||
"""layers: list of (name, opacity, visible, offset, Image[, tysh[, lsct]])
|
||
bottom->top. img=None marks a group divider layer (lsct present); it gets
|
||
empty channels (2-byte compression markers only)."""
|
||
# encode all channels (parallel)
|
||
chan_data = []
|
||
for layer in layers:
|
||
img = layer[4]
|
||
if img is None:
|
||
chan_data.append(None)
|
||
else:
|
||
ch = channel_blocks(img, workers, progress)
|
||
chan_data.append(ch)
|
||
|
||
# layer records + channel payloads
|
||
records = bytearray()
|
||
payload = bytearray()
|
||
for li, layer in enumerate(layers):
|
||
name, opacity, visible, (lx, ly), img = layer[:5]
|
||
tysh = layer[5] if len(layer) > 5 else None
|
||
lsct = layer[6] if len(layer) > 6 else None
|
||
if img is None:
|
||
# group divider: 4 empty channels (RLE marker only, len 2)
|
||
ch = [(cid, b"\x00\x01") for cid in (-1, 0, 1, 2)]
|
||
l = t = r = b = 0
|
||
if lsct and lsct[1]:
|
||
cr = crop_to_canvas(*lsct[1], width, height)
|
||
if cr:
|
||
l, t, r, b = cr
|
||
records += _layer_record(t, l, b, r, name, opacity, visible, ch,
|
||
layer_id=li + 1,
|
||
lsct=lsct[0] if lsct else None)
|
||
for _, p in ch:
|
||
payload += p
|
||
continue
|
||
ch = chan_data[li]
|
||
l, t = lx, ly
|
||
r = l + img.width
|
||
b = t + img.height
|
||
records += _layer_record(t, l, b, r, name, opacity, visible, ch,
|
||
layer_id=li + 1, tysh=tysh, lsct=lsct)
|
||
for _, p in ch:
|
||
payload += p
|
||
|
||
# merged preview: composite visible layers over transparent
|
||
merged = Image.new("RGBA", (width, height), (0, 0, 0, 0))
|
||
for layer in layers:
|
||
name, opacity, visible, (lx, ly), img = layer[:5]
|
||
if img is not None and visible and opacity > 0:
|
||
merged.paste(img, (lx, ly), img)
|
||
merged_rgb = None # keep the RGBA merged image for the 4-channel output
|
||
# Merged image data is written RAW with a single compression field and
|
||
# all planes in planar order (R G B A). 4 channels because the document
|
||
# has transparency (negative layer count references the merged alpha).
|
||
if np is not None:
|
||
arr = np.asarray(merged)
|
||
merged_block = b"\x00\x00" + b"".join(
|
||
arr[..., i].tobytes() for i in range(4))
|
||
else:
|
||
merged_block = b"\x00\x00" + b"".join(
|
||
merged.getchannel(c).tobytes() for c in "RGBA")
|
||
|
||
# assemble file. Header channels = 4 (document has transparency, like PS
|
||
# writes when layers have alpha).
|
||
fh = open(out_path, "wb")
|
||
fh.write(struct.pack(">4sH6sHIIHH", b"8BPS", 1, b"\x00" * 6, 4, height, width, 8, 3))
|
||
fh.write(struct.pack(">I", 0)) # color mode data
|
||
fh.write(struct.pack(">I", 0)) # image resources
|
||
|
||
# Layer info section: [Length(4)] + [layer count(2) + records + channel data]
|
||
# Negative layer count: abs = layer count, first alpha channel of the
|
||
# merged image holds the merged transparency (PS writes this when the
|
||
# document has transparent layers).
|
||
layer_info_body = struct.pack(">h", -len(layers)) + bytes(records) + bytes(payload)
|
||
layer_info = struct.pack(">I", len(layer_info_body)) + layer_info_body
|
||
# layer & mask section: length = layer info + global layer mask info
|
||
# (the outer length does NOT include its own 4-byte length field)
|
||
lam = layer_info + struct.pack(">I", 0) # global layer mask info
|
||
fh.write(struct.pack(">I", len(lam)) + lam)
|
||
|
||
# merged image data (RGB, RAW)
|
||
fh.write(merged_block)
|
||
fh.close()
|
||
|
||
|
||
# --------------------------------------------------------------------------
|
||
# Main
|
||
# --------------------------------------------------------------------------
|
||
def convert(ppl_path: str, out_path: str, preview_path: Optional[str] = None,
|
||
workers: int = 4, type_layer: bool = False) -> None:
|
||
import tempfile
|
||
with tempfile.TemporaryDirectory() as tmp:
|
||
with zipfile.ZipFile(ppl_path) as zf:
|
||
zf.extractall(tmp)
|
||
ini = Path(tmp) / "layers.ini"
|
||
text = ini.read_text(encoding="utf-8", errors="replace")
|
||
layers, groups = parse_layers(text)
|
||
mw = re.search(r"^width=(\d+)", text, re.M)
|
||
mh = re.search(r"^height=(\d+)", text, re.M)
|
||
width = int(mw.group(1)) if mw else 0
|
||
height = int(mh.group(1)) if mh else 0
|
||
|
||
# --- group mapping ---
|
||
group_map = {}
|
||
for g in groups:
|
||
gid = g.get("objectId")
|
||
if gid:
|
||
group_map[gid] = g
|
||
group_ranges = {}
|
||
for i, ly in enumerate(layers):
|
||
gid = ly.get("groupId")
|
||
if gid:
|
||
if gid not in group_ranges:
|
||
group_ranges[gid] = [i, i]
|
||
else:
|
||
group_ranges[gid][1] = i
|
||
# The app renders group children offset by the group bbox movement
|
||
# (moving a group updates the group bbox but not the child layer
|
||
# bboxes). Apply that offset so children land where the app shows them.
|
||
group_offset = {}
|
||
for gid, (first, last) in group_ranges.items():
|
||
g = group_map.get(gid)
|
||
if not g or "boundingRect" not in g:
|
||
continue
|
||
gl, gt, gr, gb = bounding_rect(g)
|
||
# only this group's OWN layers (nested groups' layers excluded)
|
||
own = [i for i in range(first, last + 1)
|
||
if layers[i].get("groupId") == gid]
|
||
if not own:
|
||
continue
|
||
rects = [bounding_rect(layers[i]) for i in own]
|
||
inner_l = min(r[0] for r in rects)
|
||
inner_t = min(r[1] for r in rects)
|
||
inner_r = max(r[2] for r in rects)
|
||
inner_b = max(r[3] for r in rects)
|
||
# If the group bbox fully contains its content, the children sit
|
||
# at their ppl coordinates (the bbox is just a bigger frame, e.g.
|
||
# group_64). Only offset when the group was moved away from its
|
||
# content (bbox disjoint, e.g. groups 169/181).
|
||
if gl <= inner_l and gt <= inner_t and gr >= inner_r and gb >= inner_b:
|
||
group_offset[gid] = (0, 0)
|
||
else:
|
||
group_offset[gid] = (gl - inner_l, gt - inner_t)
|
||
|
||
rendered = []
|
||
skipped = 0
|
||
rp = tqdm(total=len(layers), desc="渲染图层", unit="层", file=sys.stderr)
|
||
for i, ly in enumerate(layers):
|
||
gid = ly.get("groupId")
|
||
gname = gvis = gb = None
|
||
if gid and gid in group_ranges:
|
||
g = group_map.get(gid, {})
|
||
gname = g.get("name", "") or f"group_{gid}"
|
||
gvis = g.get("visible", "1") != "0"
|
||
gb = bounding_rect(g) if g else None
|
||
# psd_tools: kind 3 (bounding) opens a group (bottom marker),
|
||
# kind 1 (open folder) closes it (top marker, gives the name)
|
||
if group_ranges[gid][0] == i:
|
||
rendered.append((gname, 255, gvis, (0, 0), None, None,
|
||
(3, gb)))
|
||
img_path = None
|
||
if ly["_type"] == "bitmap":
|
||
uri = ly.get("uri", "")
|
||
if uri.startswith("@"):
|
||
img_path = Path(tmp) / uri[1:]
|
||
if not img_path or not img_path.is_file():
|
||
rp.update(1)
|
||
skipped += 1
|
||
continue
|
||
res = render_bitmap(ly, img_path, width, height)
|
||
elif ly["_type"] == "shape":
|
||
res = render_shape(ly, width, height)
|
||
elif ly["_type"] == "text":
|
||
res = render_text(ly, width, height)
|
||
else:
|
||
res = None
|
||
if res is None:
|
||
rp.update(1)
|
||
skipped += 1
|
||
continue
|
||
img, (lx, ly_) = res
|
||
if gid and gid in group_offset:
|
||
lx = int(lx + group_offset[gid][0])
|
||
ly_ = int(ly_ + group_offset[gid][1])
|
||
visible = ly.get("visible", "1") != "0"
|
||
opacity = int(ly.get("alpha", "255") or 255)
|
||
name = f"{ly['_type']}_{ly.get('objectId', i)}"
|
||
tysh = None
|
||
if type_layer and ly["_type"] == "text" and _TYSHA:
|
||
try:
|
||
fp = _font_path_for(ly)
|
||
tysh = build_type_layer_tysh(ly, font_ps_name(fp))
|
||
except Exception as exc:
|
||
print(f" warning: text layer {name} -> TySh failed: {exc}",
|
||
file=sys.stderr)
|
||
rendered.append((name, opacity, visible, (lx, ly_), img, tysh))
|
||
rp.update(1)
|
||
if gid and gid in group_ranges and group_ranges[gid][1] == i:
|
||
rendered.append((gname, 255, gvis, (0, 0), None, None,
|
||
(1, None)))
|
||
rp.close()
|
||
|
||
print(f"渲染完成: {len(rendered)}/{len(layers)} 层 (跳过 {skipped}), "
|
||
f"画布 {width}x{height}")
|
||
ep = tqdm(total=len(rendered) * 4 + 3, desc="编码通道", unit="通道",
|
||
file=sys.stderr)
|
||
build_psd(rendered, width, height, out_path, workers, ep)
|
||
ep.close()
|
||
print(f"PSD 已写出: {out_path}")
|
||
|
||
if preview_path:
|
||
canvas = Image.new("RGBA", (width, height), (0, 0, 0, 0))
|
||
for layer in rendered:
|
||
name, opacity, visible, (lx, ly), img = layer[:5]
|
||
if img is not None and visible and opacity > 0:
|
||
canvas.paste(img, (lx, ly), img)
|
||
# downscale for easy viewing
|
||
preview = canvas.convert("RGB")
|
||
if preview.width > 2000:
|
||
scale = 2000 / preview.width
|
||
preview = preview.resize(
|
||
(int(preview.width * scale), int(preview.height * scale)),
|
||
Image.LANCZOS)
|
||
preview.save(preview_path)
|
||
print(f"预览图已写出: {preview_path}")
|
||
|
||
|
||
def main():
|
||
ap = argparse.ArgumentParser(description="Convert Photo Editor .ppl to PSD")
|
||
ap.add_argument("input", help="input .ppl file")
|
||
ap.add_argument("-o", "--output", help="output .psd path")
|
||
ap.add_argument("--preview", help="also write a downscaled composite PNG")
|
||
ap.add_argument("-j", "--workers", type=int, default=4,
|
||
help="parallel workers for RLE encoding (default 4)")
|
||
ap.add_argument("--type-layer", action="store_true",
|
||
help="convert text layers to editable TypeLayers (TySh) "
|
||
"instead of rasterized pixels")
|
||
args = ap.parse_args()
|
||
|
||
out = args.output
|
||
if not out:
|
||
out = str(Path(args.input).with_suffix(".psd"))
|
||
convert(args.input, out, args.preview, args.workers, args.type_layer)
|
||
|
||
|
||
if __name__ == "__main__":
|
||
main()
|