:tada: init

app.py

@@ -0,0 +1,110 @@
+from diffusers import StableDiffusionPipeline, StableDiffusionImg2ImgPipeline, DPMSolverMultistepScheduler
+import gradio as gr
+import torch
+from PIL import Image
+from diffusers import OnnxStableDiffusionPipeline
+import pipeline_openvino_stable_diffusion
+
+model_id = 'OFA-Sys/small-stable-diffusion-v0'
+prefix = ''
+     
+scheduler = DPMSolverMultistepScheduler.from_pretrained(model_id, subfolder="scheduler")
+
+
+onnx_pipe = OnnxStableDiffusionPipeline.from_pretrained(
+    "OFA-Sys/small-stable-diffusion-v0",
+    revision="onnx",
+    provider="CPUExecutionProvider",
+)
+pipe = pipeline_openvino_stable_diffusion.OpenVINOStableDiffusionPipeline.from_onnx_pipeline(onnx_pipe)
+
+def error_str(error, title="Error"):
+    return f"""#### {title}
+            {error}"""  if error else ""
+
+def inference(prompt, guidance, steps, width=512, height=512, seed=0, neg_prompt="", auto_prefix=False):
+
+  generator = torch.Generator('cuda').manual_seed(seed) if seed != 0 else None
+  prompt = f"{prefix} {prompt}" if auto_prefix else prompt
+
+  try:
+    return txt_to_img(prompt, neg_prompt, guidance, steps, width, height, generator), None
+  except Exception as e:
+    return None, error_str(e)
+
+def txt_to_img(prompt, neg_prompt, guidance, steps, width, height, generator):
+
+    result = pipe(
+      prompt,
+      negative_prompt = neg_prompt,
+      num_inference_steps = int(steps),
+      guidance_scale = guidance,
+      width = width,
+      height = height,
+      generator = generator)
+    
+    return result.images[0]
+
+
+css = """.main-div div{display:inline-flex;align-items:center;gap:.8rem;font-size:1.75rem}.main-div div h1{font-weight:900;margin-bottom:7px}.main-div p{margin-bottom:10px;font-size:94%}a{text-decoration:underline}.tabs{margin-top:0;margin-bottom:0}#gallery{min-height:20rem}
+"""
+with gr.Blocks(css=css) as demo:
+    gr.HTML(
+        f"""
+            <div class="main-div">
+              <div>
+                <h1>Small Stable Diffusion V0</h1>
+              </div>
+              <p>
+               Demo for <a href="https://huggingface.co/OFA-Sys/small-stable-diffusion-v0">Small Stable Diffusion V0</a> Stable Diffusion model.<br>
+
+              </p>
+              Running on CPUs with <a href="https://github.com/OFA-Sys/diffusion-deploy">diffusion-deploy</a> to speedup the inference.
+             
+            </div>
+        """
+    )
+    with gr.Row():
+        
+        with gr.Column(scale=55):
+          with gr.Group():
+              with gr.Row():
+                prompt = gr.Textbox(label="Prompt", show_label=False, max_lines=2,placeholder=f"{prefix} [your prompt]").style(container=False)
+                generate = gr.Button(value="Generate").style(rounded=(False, True, True, False))
+
+              image_out = gr.Image(height=512)
+          error_output = gr.Markdown()
+
+        with gr.Column(scale=45):
+          with gr.Tab("Options"):
+            with gr.Group():
+              neg_prompt = gr.Textbox(label="Negative prompt", placeholder="What to exclude from the image")
+              
+
+              with gr.Row():
+                guidance = gr.Slider(label="Guidance scale", value=7.5, maximum=15)
+                steps = gr.Slider(label="Steps", value=15, minimum=2, maximum=75, step=1)
+
+              with gr.Row():
+                width = gr.Slider(label="Width", value=512, minimum=64, maximum=1024, step=8)
+                height = gr.Slider(label="Height", value=512, minimum=64, maximum=1024, step=8)
+
+              seed = gr.Slider(0, 2147483647, label='Seed (0 = random)', value=0, step=1)
+
+
+    
+
+    inputs = [prompt, guidance, steps, width, height, seed, neg_prompt, auto_prefix]
+    outputs = [image_out, error_output]
+    prompt.submit(inference, inputs=inputs, outputs=outputs)
+    generate.click(inference, inputs=inputs, outputs=outputs)
+
+    gr.HTML("""
+    <div style="border-top: 1px solid #303030;">
+      <br>
+      <p>This space was created using <a href="https://huggingface.co/spaces/anzorq/sd-space-creator">SD Space Creator</a>.</p>
+    </div>
+    """)
+
+demo.queue(concurrency_count=1)
+demo.launch()

pipeline_openvino_stable_diffusion.py

@@ -0,0 +1,405 @@
+# Copyright 2022 The OFA-Sys Team.
+# This source code is licensed under the Apache 2.0 license
+# found in the LICENSE file in the root directory.
+# Copyright 2022 The HuggingFace Inc. team.
+# All rights reserved.
+# This source code is licensed under the Apache 2.0 license
+# found in the LICENSE file in the root directory.
+
+import inspect
+from typing import Callable, List, Optional, Union
+
+import numpy as np
+import torch
+import os
+
+from transformers import CLIPFeatureExtractor, CLIPTokenizer
+
+from diffusers.configuration_utils import FrozenDict
+from diffusers import DDIMScheduler, LMSDiscreteScheduler, PNDMScheduler
+from diffusers.utils import deprecate, logging
+from diffusers.onnx_utils import OnnxRuntimeModel
+
+from diffusers import OnnxStableDiffusionPipeline, DiffusionPipeline
+from diffusers.pipelines.stable_diffusion import StableDiffusionPipelineOutput
+from openvino.runtime import Core
+ORT_TO_NP_TYPE = {
+    "tensor(bool)": np.bool_,
+    "tensor(int8)": np.int8,
+    "tensor(uint8)": np.uint8,
+    "tensor(int16)": np.int16,
+    "tensor(uint16)": np.uint16,
+    "tensor(int32)": np.int32,
+    "tensor(uint32)": np.uint32,
+    "tensor(int64)": np.int64,
+    "tensor(uint64)": np.uint64,
+    "tensor(float16)": np.float16,
+    "tensor(float)": np.float32,
+    "tensor(double)": np.float64,
+}
+
+logger = logging.get_logger(__name__)
+
+
+class OpenVINOStableDiffusionPipeline(DiffusionPipeline):
+    vae_encoder: OnnxRuntimeModel
+    vae_decoder: OnnxRuntimeModel
+    text_encoder: OnnxRuntimeModel
+    tokenizer: CLIPTokenizer
+    unet: OnnxRuntimeModel
+    scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler]
+    safety_checker: OnnxRuntimeModel
+    feature_extractor: CLIPFeatureExtractor
+
+    _optional_components = ["safety_checker", "feature_extractor"]
+
+    def __init__(
+        self,
+        vae_encoder: OnnxRuntimeModel,
+        vae_decoder: OnnxRuntimeModel,
+        text_encoder: OnnxRuntimeModel,
+        tokenizer: CLIPTokenizer,
+        unet: OnnxRuntimeModel,
+        scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler],
+        safety_checker: OnnxRuntimeModel,
+        feature_extractor: CLIPFeatureExtractor,
+        requires_safety_checker: bool = True,
+    ):
+        super().__init__()
+
+        if hasattr(scheduler.config,
+                   "steps_offset") and scheduler.config.steps_offset != 1:
+            deprecation_message = (
+                f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`"
+                f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure "
+                "to update the config accordingly as leaving `steps_offset` might led to incorrect results"
+                " in future versions. If you have downloaded this checkpoint from the Hugging Face Hub,"
+                " it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`"
+                " file")
+            deprecate("steps_offset!=1",
+                      "1.0.0",
+                      deprecation_message,
+                      standard_warn=False)
+            new_config = dict(scheduler.config)
+            new_config["steps_offset"] = 1
+            scheduler._internal_dict = FrozenDict(new_config)
+
+        if hasattr(scheduler.config,
+                   "clip_sample") and scheduler.config.clip_sample is True:
+            deprecation_message = (
+                f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`."
+                " `clip_sample` should be set to False in the configuration file. Please make sure to update the"
+                " config accordingly as not setting `clip_sample` in the config might lead to incorrect results in"
+                " future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very"
+                " nice if you could open a Pull request for the `scheduler/scheduler_config.json` file"
+            )
+            deprecate("clip_sample not set",
+                      "1.0.0",
+                      deprecation_message,
+                      standard_warn=False)
+            new_config = dict(scheduler.config)
+            new_config["clip_sample"] = False
+            scheduler._internal_dict = FrozenDict(new_config)
+
+        if safety_checker is None and requires_safety_checker:
+            logger.warning(
+                f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure"
+                " that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered"
+                " results in services or applications open to the public. Both the diffusers team and Hugging Face"
+                " strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling"
+                " it only for use-cases that involve analyzing network behavior or auditing its results. For more"
+                " information, please have a look at https://github.com/huggingface/diffusers/pull/254 ."
+            )
+
+        if safety_checker is not None and feature_extractor is None:
+            raise ValueError(
+                "Make sure to define a feature extractor when loading {self.__class__} if you want to use the safety"
+                " checker. If you do not want to use the safety checker, you can pass `'safety_checker=None'` instead."
+            )
+
+        self.register_modules(
+            vae_encoder=vae_encoder,
+            vae_decoder=vae_decoder,
+            text_encoder=text_encoder,
+            tokenizer=tokenizer,
+            unet=unet,
+            scheduler=scheduler,
+            safety_checker=safety_checker,
+            feature_extractor=feature_extractor,
+        )
+        self.convert_to_openvino()
+        self.register_to_config(
+            requires_safety_checker=requires_safety_checker)
+
+    @classmethod
+    def from_onnx_pipeline(cls, onnx_pipe: OnnxStableDiffusionPipeline):
+        r"""
+        Create OpenVINOStableDiffusionPipeline from a onnx stable pipeline.
+        Parameters:
+            onnx_pipe (OnnxStableDiffusionPipeline)
+        """
+        return cls(onnx_pipe.vae_encoder, onnx_pipe.vae_decoder,
+                   onnx_pipe.text_encoder, onnx_pipe.tokenizer, onnx_pipe.unet,
+                   onnx_pipe.scheduler, onnx_pipe.safety_checker,
+                   onnx_pipe.feature_extractor, True)
+
+    def convert_to_openvino(self):
+        ie = Core()
+
+        # VAE decoder
+        vae_decoder_onnx = ie.read_model(
+            model=os.path.join(self.vae_decoder.model_save_dir, "model.onnx"))
+        vae_decoder = ie.compile_model(model=vae_decoder_onnx,
+                                       device_name="CPU")
+
+        # Text encoder
+        text_encoder_onnx = ie.read_model(
+            model=os.path.join(self.text_encoder.model_save_dir, "model.onnx"))
+        text_encoder = ie.compile_model(model=text_encoder_onnx,
+                                        device_name="CPU")
+
+        # Unet
+        unet_onnx = ie.read_model(
+            model=os.path.join(self.unet.model_save_dir, "model.onnx"))
+        unet = ie.compile_model(model=unet_onnx, device_name="CPU")
+
+        self.register_modules(vae_decoder=vae_decoder,
+                              text_encoder=text_encoder,
+                              unet=unet)
+
+    def _encode_prompt(self, prompt, num_images_per_prompt,
+                       do_classifier_free_guidance, negative_prompt):
+        r"""
+        Encodes the prompt into text encoder hidden states.
+        Args:
+            prompt (`str` or `List[str]`):
+                prompt to be encoded
+            num_images_per_prompt (`int`):
+                number of images that should be generated per prompt
+            do_classifier_free_guidance (`bool`):
+                whether to use classifier free guidance or not
+            negative_prompt (`str` or `List[str]`):
+                The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored
+                if `guidance_scale` is less than `1`).
+        """
+        batch_size = len(prompt) if isinstance(prompt, list) else 1
+
+        # get prompt text embeddings
+        text_inputs = self.tokenizer(
+            prompt,
+            padding="max_length",
+            max_length=self.tokenizer.model_max_length,
+            truncation=True,
+            return_tensors="np",
+        )
+        text_input_ids = text_inputs.input_ids
+        untruncated_ids = self.tokenizer(prompt,
+                                         padding="max_length",
+                                         return_tensors="np").input_ids
+
+        if not np.array_equal(text_input_ids, untruncated_ids):
+            removed_text = self.tokenizer.batch_decode(
+                untruncated_ids[:, self.tokenizer.model_max_length - 1:-1])
+            logger.warning(
+                "The following part of your input was truncated because CLIP can only handle sequences up to"
+                f" {self.tokenizer.model_max_length} tokens: {removed_text}")
+
+        prompt_embeds = self.text_encoder(
+            {"input_ids":
+             text_input_ids.astype(np.int32)})[self.text_encoder.outputs[0]]
+        prompt_embeds = np.repeat(prompt_embeds, num_images_per_prompt, axis=0)
+
+        # get unconditional embeddings for classifier free guidance
+        if do_classifier_free_guidance:
+            uncond_tokens: List[str]
+            if negative_prompt is None:
+                uncond_tokens = [""] * batch_size
+            elif type(prompt) is not type(negative_prompt):
+                raise TypeError(
+                    f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !="
+                    f" {type(prompt)}.")
+            elif isinstance(negative_prompt, str):
+                uncond_tokens = [negative_prompt] * batch_size
+            elif batch_size != len(negative_prompt):
+                raise ValueError(
+                    f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:"
+                    f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches"
+                    " the batch size of `prompt`.")
+            else:
+                uncond_tokens = negative_prompt
+
+            max_length = text_input_ids.shape[-1]
+            uncond_input = self.tokenizer(
+                uncond_tokens,
+                padding="max_length",
+                max_length=max_length,
+                truncation=True,
+                return_tensors="np",
+            )
+            negative_prompt_embeds = self.text_encoder({
+                "input_ids":
+                uncond_input.input_ids.astype(np.int32)
+            })[self.text_encoder.outputs[0]]
+            negative_prompt_embeds = np.repeat(negative_prompt_embeds,
+                                               num_images_per_prompt,
+                                               axis=0)
+
+            # For classifier free guidance, we need to do two forward passes.
+            # Here we concatenate the unconditional and text embeddings into a single batch
+            # to avoid doing two forward passes
+            prompt_embeds = np.concatenate(
+                [negative_prompt_embeds, prompt_embeds])
+
+        return prompt_embeds
+
+    def __call__(
+        self,
+        prompt: Union[str, List[str]],
+        height: Optional[int] = 512,
+        width: Optional[int] = 512,
+        num_inference_steps: Optional[int] = 50,
+        guidance_scale: Optional[float] = 7.5,
+        negative_prompt: Optional[Union[str, List[str]]] = None,
+        num_images_per_prompt: Optional[int] = 1,
+        eta: Optional[float] = 0.0,
+        generator: Optional[np.random.RandomState] = None,
+        latents: Optional[np.ndarray] = None,
+        output_type: Optional[str] = "pil",
+        return_dict: bool = True,
+        callback: Optional[Callable[[int, int, np.ndarray], None]] = None,
+        callback_steps: Optional[int] = 1,
+    ):
+        if isinstance(prompt, str):
+            batch_size = 1
+        elif isinstance(prompt, list):
+            batch_size = len(prompt)
+        else:
+            raise ValueError(
+                f"`prompt` has to be of type `str` or `list` but is {type(prompt)}"
+            )
+
+        if height % 8 != 0 or width % 8 != 0:
+            raise ValueError(
+                f"`height` and `width` have to be divisible by 8 but are {height} and {width}."
+            )
+
+        if (callback_steps is None) or (callback_steps is not None and
+                                        (not isinstance(callback_steps, int)
+                                         or callback_steps <= 0)):
+            raise ValueError(
+                f"`callback_steps` has to be a positive integer but is {callback_steps} of type"
+                f" {type(callback_steps)}.")
+
+        if generator is None:
+            generator = np.random
+
+        # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2)
+        # of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1`
+        # corresponds to doing no classifier free guidance.
+        do_classifier_free_guidance = guidance_scale > 1.0
+
+        prompt_embeds = self._encode_prompt(prompt, num_images_per_prompt,
+                                            do_classifier_free_guidance,
+                                            negative_prompt)
+
+        # get the initial random noise unless the user supplied it
+        latents_dtype = prompt_embeds.dtype
+        latents_shape = (batch_size * num_images_per_prompt, 4, height // 8,
+                         width // 8)
+        if latents is None:
+            latents = generator.randn(*latents_shape).astype(latents_dtype)
+        elif latents.shape != latents_shape:
+            raise ValueError(
+                f"Unexpected latents shape, got {latents.shape}, expected {latents_shape}"
+            )
+
+        # set timesteps
+        self.scheduler.set_timesteps(num_inference_steps)
+
+        latents = latents * np.float64(self.scheduler.init_noise_sigma)
+
+        # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature
+        # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers.
+        # eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502
+        # and should be between [0, 1]
+        accepts_eta = "eta" in set(
+            inspect.signature(self.scheduler.step).parameters.keys())
+        extra_step_kwargs = {}
+        if accepts_eta:
+            extra_step_kwargs["eta"] = eta
+
+        # timestep_dtype = next(
+        #     (input.type for input in self.unet.model.get_inputs() if input.name == "timestep"), "tensor(float)"
+        # )
+        timestep_dtype = 'tensor(int64)'
+        timestep_dtype = ORT_TO_NP_TYPE[timestep_dtype]
+
+        for i, t in enumerate(self.progress_bar(self.scheduler.timesteps)):
+            # expand the latents if we are doing classifier free guidance
+            latent_model_input = np.concatenate(
+                [latents] * 2) if do_classifier_free_guidance else latents
+            latent_model_input = self.scheduler.scale_model_input(
+                torch.from_numpy(latent_model_input), t)
+            latent_model_input = latent_model_input.cpu().numpy()
+
+            # predict the noise residual
+            timestep = np.array([t], dtype=timestep_dtype)
+            unet_input = {
+                "sample": latent_model_input,
+                "timestep": timestep,
+                "encoder_hidden_states": prompt_embeds
+            }
+            noise_pred = self.unet(unet_input)[self.unet.outputs[0]]
+            # noise_pred = noise_pred[0]
+
+            # perform guidance
+            if do_classifier_free_guidance:
+                noise_pred_uncond, noise_pred_text = np.split(noise_pred, 2)
+                noise_pred = noise_pred_uncond + guidance_scale * (
+                    noise_pred_text - noise_pred_uncond)
+
+            # compute the previous noisy sample x_t -> x_t-1
+            scheduler_output = self.scheduler.step(
+                torch.from_numpy(noise_pred), t, torch.from_numpy(latents),
+                **extra_step_kwargs)
+            latents = scheduler_output.prev_sample.numpy()
+
+            # call the callback, if provided
+            if callback is not None and i % callback_steps == 0:
+                callback(i, t, latents)
+
+        latents = 1 / 0.18215 * latents
+        image = self.vae_decoder({"latent_sample":
+                                   latents})[self.vae_decoder.outputs[0]]
+
+        image = np.clip(image / 2 + 0.5, 0, 1)
+        image = image.transpose((0, 2, 3, 1))
+
+        if self.safety_checker is not None:
+            safety_checker_input = self.feature_extractor(
+                self.numpy_to_pil(image),
+                return_tensors="np").pixel_values.astype(image.dtype)
+
+            image, has_nsfw_concepts = self.safety_checker(
+                clip_input=safety_checker_input, images=image)
+
+            # There will throw an error if use safety_checker batchsize>1
+            images, has_nsfw_concept = [], []
+            for i in range(image.shape[0]):
+                image_i, has_nsfw_concept_i = self.safety_checker(
+                    clip_input=safety_checker_input[i:i + 1],
+                    images=image[i:i + 1])
+                images.append(image_i)
+                has_nsfw_concept.append(has_nsfw_concept_i[0])
+            image = np.concatenate(images)
+        else:
+            has_nsfw_concept = None
+
+        if output_type == "pil":
+            image = self.numpy_to_pil(image)
+
+        if not return_dict:
+            return (image, has_nsfw_concept)
+
+        return StableDiffusionPipelineOutput(
+            images=image, nsfw_content_detected=has_nsfw_concept)

requirements.txt

@@ -0,0 +1,9 @@
+--extra-index-url https://download.pytorch.org/whl/cu113
+torch
+diffusers
+#transformers
+git+https://github.com/huggingface/transformers
+accelerate
+ftfy
+onnxruntime-openvino
+openvino