o ٷiD@sPdZddlZddlZddlZdedeeeffddZdej j defdd Z dS) z Shared helper utilities for OpenAI-compatible image generation API. This module provides common helper functions for the image generation endpoint. All functions work with plain Python types to maintain separation from the FastAPI HTTP layer. Nsize_strreturncCs|rt|tstd||d}t|dkr!td|dzt|d}t|d}Wnty>td|dw|dksG|dkrRtd |d|d ||fS) zParse size string to width and height tuple. Args: size_str: Size in format "WIDTHxHEIGHT" (e.g., "1024x1024") Returns: Tuple of (width, height) Raises: ValueError: If size format is invalid zSSize must be a non-empty string in format 'WIDTHxHEIGHT' (e.g., '1024x1024'), got: xzInvalid size format: 'z]'. Expected format: 'WIDTHxHEIGHT' (e.g., '1024x1024'). Did you mean to use 'x' as separator?rz%'. Width and height must be integers.zInvalid size: z-. Width and height must be positive integers.) isinstancestr ValueErrorsplitlenint)rpartswidthheightr`/home/ubuntu/.local/lib/python3.10/site-packages/vllm_omni/entrypoints/openai/image_api_utils.py parse_sizes$      rimagecCs4t}|j|dd|dt|dS)zEncode PIL Image to base64 PNG string. Args: image: PIL Image object Returns: Base64-encoded PNG image as string PNG)formatrzutf-8)ioBytesIOsaveseekbase64 b64encodereaddecode)rbufferrrrencode_image_base645s  r) __doc__rr PIL.ImagePILrtupler rImagerrrrrs $