24 lines
981 B
Python
24 lines
981 B
Python
"""CoCo 3 GIME 160x192, 16 colours from the 64-colour palette (flagship photo
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mode -- wide pixels but the most colour)."""
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from __future__ import annotations
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from ...convert.base import Conversion, perceptual_error
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from . import _common
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WIDTH, HEIGHT = 160, 192
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PIXEL_ASPECT = 2.0 # 160 wide on a 4:3 screen -> pixels twice as wide
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NCOL = 16
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CRES = 2
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def convert(img_rgb, palette_name="gime", dither_mode="floyd",
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intensive=False, base_color=None):
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pen, inks, idx, img_lab, plab, prgb = _common.render(img_rgb, NCOL, dither_mode)
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screen = _common.PACK[CRES](pen)
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return Conversion(
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mode="gr16", width=WIDTH, height=HEIGHT, pixel_aspect=PIXEL_ASPECT,
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index_image=idx, data=screen, data_addr=0x4000, viewer="coco3",
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preview_rgb=prgb[idx], error=perceptual_error(idx, img_lab, plab),
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meta={"palette": "gime", "dither": dither_mode, "cres": CRES,
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"inks": inks, "border": inks[0] if inks else 0},
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)
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