papermario/tools/splat_ext/pm_charset.py

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from splat.segtypes.n64.segment import N64Segment
from splat.util import options
import png # type: ignore
def parse_ci4(data, width, height):
raster = bytearray()
for i in range(width * height // 2):
raster.append(data[i] >> 4)
raster.append(data[i] & 0xF)
return raster
def get_palette_idx(charset_name, char_id):
pal_id = 0
if charset_name == "standard":
if char_id == 0x98:
pal_id = 0x10
elif char_id == 0x99:
pal_id = 0x11
elif char_id == 0x9A:
pal_id = 0x15
elif char_id == 0x9B:
pal_id = 0x15
elif char_id == 0x9C:
pal_id = 0x15
elif char_id == 0x9D:
pal_id = 0x13
elif char_id == 0x9E:
pal_id = 0x13
elif char_id == 0x9F:
pal_id = 0x13
elif char_id == 0xA0:
pal_id = 0x13
elif char_id == 0xA1:
pal_id = 0x12
elif charset_name == "buttons":
if char_id == 0x00:
pal_id = 0x10
elif char_id == 0x01:
pal_id = 0x11
elif char_id == 0x02:
pal_id = 0x12
elif char_id == 0x03:
pal_id = 0x13
elif char_id == 0x04:
pal_id = 0x13
elif char_id == 0x05:
pal_id = 0x13
elif char_id == 0x06:
pal_id = 0x13
elif char_id == 0x07:
pal_id = 0x14
elif char_id == 0x08:
pal_id = 0x14
elif char_id == 0x09:
pal_id = 0x14
return pal_id
class N64SegPm_charset(N64Segment):
def scan(self, rom_bytes):
data = rom_bytes[self.rom_start : self.rom_end]
# start, type, name, WIDTH, HEIGHT, NUM_RASTERS, palette
self.width = self.yaml[3]
self.height = self.yaml[4]
if len(self.yaml) > 6:
self.palette = self.yaml[6]
else:
self.palette = self.name
# pm_charset_palettes sibling
self.sibling = next(
filter(
lambda s: s.type == "pm_charset_palettes" and s.name == self.palette,
self.parent.subsegments,
)
)
self.rasters = []
step = self.width * self.height // 2
# align step to 8
step = (step + 7) & ~7
for i in range(0, self.size, step):
raster = parse_ci4(data[i:], self.width, self.height)
self.rasters.append(raster)
def split(self, rom_bytes):
fs_dir = options.opts.asset_path / self.dir / self.name
fs_dir.mkdir(parents=True, exist_ok=True)
for i, raster in enumerate(self.rasters):
pal_idx = get_palette_idx(self.name, i)
palette = self.sibling.palettes[pal_idx]
w = png.Writer(self.width, self.height, palette=palette)
with open(fs_dir / f"{i:02X}.png", "wb") as f:
w.write_array(f, raster)
def get_linker_entries(self):
from splat.segtypes.linker_entry import LinkerEntry
# start, type, name, WIDTH, HEIGHT
self.width = self.yaml[3]
self.height = self.yaml[4]
fs_dir = options.opts.asset_path / self.dir / self.name
return [
LinkerEntry(
self,
[fs_dir / f"{i:02X}.png" for i in range(self.yaml[5])],
fs_dir.with_suffix(".dat"),
".data",
".data",
),
]