[Diffusion] Qwen image support (#82)

Signed-off-by: zjy0516 <riverclouds.zhu@qq.com>

examples/offline_inference/diffusion/qwen_image.py

@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import torch
+
+from vllm_omni.entrypoints.omni import Omni
+
+model_name = "Qwen/Qwen-Image"
+prompt = "a cup of coffee on the table"
+if __name__ == "__main__":
+    m = Omni(
+        model=model_name,
+    )
+    image = m.generate(
+        prompt,
+        height=1024,
+        width=1024,
+        generator=torch.Generator(device="cuda").manual_seed(42),
+    )
+    image[0].save("qwen_image_output.png")