add autopipeline infer (PaddlePaddle#241)

ppdiffusers/examples/inference/text_to_image_generation-auto.py

@@ -0,0 +1,31 @@
+# Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import paddle
+
+from ppdiffusers import AutoPipelineForText2Image
+
+pipe_t2i = AutoPipelineForText2Image.from_pretrained(
+    "runwayml/stable-diffusion-v1-5", requires_safety_checker=False, paddle_dtype=paddle.float16
+)
+prompt = "photo a majestic sunrise in the mountains, best quality, 4k"
+image = pipe_t2i(prompt).images[0]
+image.save("text_to_image_generation-auto-result1.png")
+
+
+from ppdiffusers import AutoPipelineForImage2Image
+
+pipe_i2i = AutoPipelineForImage2Image.from_pipe(pipe_t2i)
+image = pipe_i2i("sunrise in snowy mountains, best quality", image).images[0]
+image.save("text_to_image_generation-auto-result2.png")