33 lines
929 B
Python
33 lines
929 B
Python
"""Shared image serialization helpers for LayerForge backend boundaries."""
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import base64
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import io
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from PIL import Image
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def _bytes_to_data_url(data: bytes, mime_type: str) -> str:
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encoded = base64.b64encode(data).decode("ascii")
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return f"data:{mime_type};base64,{encoded}"
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def pil_to_data_url(
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image: Image.Image,
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*,
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image_format: str = "PNG",
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mime_type: str = "image/png",
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) -> str:
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"""Serialize a PIL image using the existing PNG data-URL contract."""
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buffer = io.BytesIO()
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image.save(buffer, format=image_format)
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return _bytes_to_data_url(buffer.getvalue(), mime_type)
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def file_to_data_url(path: str, *, mime_type: str = "image/png") -> str:
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"""Read an image file without transforming its bytes into a data URL."""
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with open(path, "rb") as image_file:
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return _bytes_to_data_url(image_file.read(), mime_type)
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__all__ = ["file_to_data_url", "pil_to_data_url"]
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