Add flux1 demo for fill

app/flux.1/fill/assets/description.html

+<div style="display: flex; justify-content: center; align-items: center; text-align: center;">
+    <div>
+        <h1>
+            <img src="https://github.com/mit-han-lab/nunchaku/raw/refs/heads/main/assets/logo.svg"
+                 alt="logo"
+                 style="height: 40px; width: auto; display: block; margin: auto;"/>
+            INT4 FLUX.1-fill-dev Demo
+        </h1>
+        <h2>
+            SVDQuant: Absorbing Outliers by Low-Rank Components for 4-Bit Diffusion Models
+        </h2>
+        <h3>
+            <a href='https://lmxyy.me'>Muyang Li*</a>,
+            <a href='https://yujunlin.com'>Yujun Lin*</a>,
+            <a href='https://hanlab.mit.edu/team/zhekai-zhang'>Zhekai Zhang*</a>,
+            <a href='https://www.tianle.website/#/'>Tianle Cai</a>,
+            <a href='https://xiuyuli.com'>Xiuyu Li</a>,
+            <br>
+            <a href='https://github.com/JerryGJX'>Junxian Guo</a>,
+            <a href='https://xieenze.github.io'>Enze Xie</a>,
+            <a href='https://cs.stanford.edu/~chenlin/'>Chenlin Meng</a>,
+            <a href='https://www.cs.cmu.edu/~junyanz/'>Jun-Yan Zhu</a>,
+            and <a href='https://hanlab.mit.edu/songhan'>Song Han</a>
+        </h3>
+        <div style="display: flex; justify-content: center; align-items: center; text-align: center;">
+            <a href="https://arxiv.org/abs/2411.05007">[Paper]</a>
+            &nbsp;
+            <a href='https://github.com/mit-han-lab/nunchaku'>
+                [Code]
+            </a>
+            &nbsp;
+            <a href='https://hanlab.mit.edu/projects/svdquant'>
+                [Website]
+            </a>
+            &nbsp;
+            <a href='https://hanlab.mit.edu/blog/svdquant'>
+                [Blog]
+            </a>
+        </div>
+        <h4>Quantization Library:
+            <a href='https://github.com/mit-han-lab/deepcompressor'>DeepCompressor</a>&nbsp;
+            Inference Engine: <a href='https://github.com/mit-han-lab/nunchaku'>Nunchaku</a>&nbsp;
+            Image Control: <a href="https://github.com/GaParmar/img2img-turbo">img2img-turbo</a>
+        </h4>
+        <div style="display: flex; justify-content: center; align-items: center; text-align: center;">
+            {device_info}
+        </div>
+        <div style="display: flex; justify-content: center; align-items: center; text-align: center;">
+            {notice}
+        </div>
+        {count_info}
+    </div>
+</div>
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app/flux.1/fill/assets/style.css

+@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/all.min.css');
+
+.gradio-container{max-width: 1200px !important}
+h1{text-align:center}
+
+.wrap.svelte-p4aq0j.svelte-p4aq0j {
+    display: none;
+}
+
+#column_input, #column_output {
+    width: 500px;
+    display: flex;
+    align-items: center;
+}
+
+#input_header, #output_header {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    width: 400px;
+}
+
+#accessibility {
+    text-align: center; /* Center-aligns the text */
+    margin: auto;       /* Centers the element horizontally */
+}
+
+#random_seed {height: 71px;}
+#run_button {height: 87px;}
\ No newline at end of file

app/flux.1/fill/run_gradio.py

+# Changed from https://github.com/GaParmar/img2img-turbo/blob/main/gradio_sketch2image.py
+import logging
+import os
+import random
+import tempfile
+import time
+from datetime import datetime
+
+import GPUtil
+import numpy as np
+import torch
+from PIL import Image
+
+from diffusers import FluxFillPipeline
+from nunchaku.models.safety_checker import SafetyChecker
+from nunchaku.models.transformer_flux import NunchakuFluxTransformer2dModel
+from utils import get_args
+from vars import DEFAULT_GUIDANCE, DEFAULT_INFERENCE_STEP, DEFAULT_STYLE_NAME, MAX_SEED, STYLE_NAMES, STYLES
+
+# import gradio last to avoid conflicts with other imports
+import gradio as gr
+
+blank_image = Image.new("RGB", (1024, 1024), (255, 255, 255))
+
+args = get_args()
+
+if args.precision == "bf16":
+    pipeline = FluxFillPipeline.from_pretrained(f"black-forest-labs/FLUX.1-Fill-dev", torch_dtype=torch.bfloat16)
+    pipeline = pipeline.to("cuda")
+    pipeline.precision = "bf16"
+else:
+    assert args.precision == "int4"
+    pipeline_init_kwargs = {}
+    transformer = NunchakuFluxTransformer2dModel.from_pretrained(f"mit-han-lab/svdq-int4-flux.1-fill-dev")
+    pipeline_init_kwargs["transformer"] = transformer
+    if args.use_qencoder:
+        from nunchaku.models.text_encoder import NunchakuT5EncoderModel
+
+        text_encoder_2 = NunchakuT5EncoderModel.from_pretrained("mit-han-lab/svdq-flux.1-t5")
+        pipeline_init_kwargs["text_encoder_2"] = text_encoder_2
+
+    pipeline = FluxFillPipeline.from_pretrained(
+        f"black-forest-labs/FLUX.1-Fill-dev", torch_dtype=torch.bfloat16, **pipeline_init_kwargs
+    )
+    pipeline = pipeline.to("cuda")
+    pipeline.precision = "int4"
+safety_checker = SafetyChecker("cuda", disabled=args.no_safety_checker)
+
+
+def save_image(img):
+    if isinstance(img, dict):
+        img = img["composite"]
+    temp_file = tempfile.NamedTemporaryFile(suffix=".png", delete=False)
+    img.save(temp_file.name)
+    return temp_file.name
+
+
+def run(image, prompt: str, prompt_template: str, num_inference_steps: int, guidance_scale: float, seed: int) -> tuple[Image, str]:
+    print(f"Prompt: {prompt}")
+    image_numpy = np.array(image["composite"].convert("RGB"))
+
+    if prompt.strip() == "" and (np.sum(image_numpy == 255) >= 3145628 or np.sum(image_numpy == 0) >= 3145628):
+        return blank_image, "Please input the prompt or draw something."
+
+    is_unsafe_prompt = False
+    if not safety_checker(prompt):
+        is_unsafe_prompt = True
+        prompt = "A peaceful world."
+    prompt = prompt_template.format(prompt=prompt)
+    mask = image["layers"][0].getchannel(3) # Mask is stored in the last channel
+    pic = image["background"].convert("RGB") # This is the original photo
+
+    start_time = time.time()
+    result_image = pipeline(
+        prompt=prompt,
+        image=pic,
+        mask_image=mask,
+        guidance_scale=guidance_scale,
+        height=1024,
+        width=1024,
+        num_inference_steps=num_inference_steps,
+        max_sequence_length=512,
+        generator=torch.Generator().manual_seed(seed)
+    ).images[0]
+
+    latency = time.time() - start_time
+    if latency < 1:
+        latency = latency * 1000
+        latency_str = f"{latency:.2f}ms"
+    else:
+        latency_str = f"{latency:.2f}s"
+    if is_unsafe_prompt:
+        latency_str += " (Unsafe prompt detected)"
+    torch.cuda.empty_cache()
+    if args.count_use:
+        if os.path.exists("use_count.txt"):
+            with open("use_count.txt", "r") as f:
+                count = int(f.read())
+        else:
+            count = 0
+        count += 1
+        current_time = datetime.now()
+        print(f"{current_time}: {count}")
+        with open("use_count.txt", "w") as f:
+            f.write(str(count))
+        with open("use_record.txt", "a") as f:
+            f.write(f"{current_time}: {count}\n")
+    return result_image, latency_str
+
+
+with gr.Blocks(css_paths="assets/style.css", title=f"SVDQuant Flux.1-Fill-dev Sketch-to-Image Demo") as demo:
+    with open("assets/description.html", "r") as f:
+        DESCRIPTION = f.read()
+    gpus = GPUtil.getGPUs()
+    if len(gpus) > 0:
+        gpu = gpus[0]
+        memory = gpu.memoryTotal / 1024
+        device_info = f"Running on {gpu.name} with {memory:.0f} GiB memory."
+    else:
+        device_info = "Running on CPU 🥶 This demo does not work on CPU."
+    notice = f'<strong>Notice:</strong>&nbsp;We will replace unsafe prompts with a default prompt: "A peaceful world."'
+
+    def get_header_str():
+
+        if args.count_use:
+            if os.path.exists("use_count.txt"):
+                with open("use_count.txt", "r") as f:
+                    count = int(f.read())
+            else:
+                count = 0
+            count_info = (
+                f"<div style='display: flex; justify-content: center; align-items: center; text-align: center;'>"
+                f"<span style='font-size: 18px; font-weight: bold;'>Total inference runs: </span>"
+                f"<span style='font-size: 18px; color:red; font-weight: bold;'>&nbsp;{count}</span></div>"
+            )
+        else:
+            count_info = ""
+        header_str = DESCRIPTION.format(device_info=device_info, notice=notice, count_info=count_info)
+        return header_str
+
+    header = gr.HTML(get_header_str())
+    demo.load(fn=get_header_str, outputs=header)
+
+    with gr.Row(elem_id="main_row"):
+        with gr.Column(elem_id="column_input"):
+            gr.Markdown("## INPUT", elem_id="input_header")
+            with gr.Group():
+                canvas = gr.ImageMask(
+                    value=blank_image,
+                    height=640,
+                    image_mode="RGBA",
+                    sources=["upload", "clipboard"],
+                    type="pil",
+                    label="Sketch",
+                    show_label=False,
+                    show_download_button=True,
+                    interactive=True,
+                    transforms=[],
+                    canvas_size=(1024, 1024),
+                    scale=1,
+                    format="png",
+                    layers=False,
+                )
+                with gr.Row():
+                    prompt = gr.Text(label="Prompt", placeholder="Enter your prompt", scale=6)
+                    run_button = gr.Button("Run", scale=1, elem_id="run_button")
+            download_sketch = gr.DownloadButton("Download Sketch", scale=1, elem_id="download_sketch")
+            with gr.Row():
+                style = gr.Dropdown(label="Style", choices=STYLE_NAMES, value=DEFAULT_STYLE_NAME, scale=1)
+                prompt_template = gr.Textbox(
+                    label="Prompt Style Template", value=STYLES[DEFAULT_STYLE_NAME], scale=2, max_lines=1
+                )
+
+            with gr.Row():
+                seed = gr.Slider(label="Seed", show_label=True, minimum=0, maximum=MAX_SEED, value=233, step=1, scale=4)
+                randomize_seed = gr.Button("Random Seed", scale=1, min_width=50, elem_id="random_seed")
+            with gr.Accordion("Advanced options", open=False):
+                with gr.Group():
+                    num_inference_steps = gr.Slider(label="Inference Steps", minimum=10, maximum=50, step=1, value=DEFAULT_INFERENCE_STEP)
+                    guidance_scale = gr.Slider(label="Guidance Scale", minimum=1, maximum=50, step=1, value=DEFAULT_GUIDANCE)
+
+        with gr.Column(elem_id="column_output"):
+            gr.Markdown("## OUTPUT", elem_id="output_header")
+            with gr.Group():
+                result = gr.Image(
+                    format="png",
+                    height=640,
+                    image_mode="RGB",
+                    type="pil",
+                    label="Result",
+                    show_label=False,
+                    show_download_button=True,
+                    interactive=False,
+                    elem_id="output_image",
+                )
+                latency_result = gr.Text(label="Inference Latency", show_label=True)
+
+            download_result = gr.DownloadButton("Download Result", elem_id="download_result")
+            gr.Markdown("### Instructions")
+            gr.Markdown("**1**. Enter a text prompt (e.g. a cat)")
+            gr.Markdown("**2**. Start sketching")
+            gr.Markdown("**3**. Change the image style using a style template")
+            gr.Markdown("**4**. Adjust the effect of sketch guidance using the slider (typically between 0.2 and 0.4)")
+            gr.Markdown("**5**. Try different seeds to generate different results")
+
+    run_inputs = [canvas, prompt, prompt_template, num_inference_steps, guidance_scale, seed]
+    run_outputs = [result, latency_result]
+
+    randomize_seed.click(
+        lambda: random.randint(0, MAX_SEED),
+        inputs=[],
+        outputs=seed,
+        api_name=False,
+        queue=False,
+    ).then(run, inputs=run_inputs, outputs=run_outputs, api_name=False)
+
+    style.change(
+        lambda x: STYLES[x],
+        inputs=[style],
+        outputs=[prompt_template],
+        api_name=False,
+        queue=False,
+    ).then(fn=run, inputs=run_inputs, outputs=run_outputs, api_name=False)
+    gr.on(
+        triggers=[prompt.submit, run_button.click, canvas.change],
+        fn=run,
+        inputs=run_inputs,
+        outputs=run_outputs,
+        api_name=False,
+    )
+
+    download_sketch.click(fn=save_image, inputs=canvas, outputs=download_sketch)
+    download_result.click(fn=save_image, inputs=result, outputs=download_result)
+    gr.Markdown("MIT Accessibility: https://accessibility.mit.edu/", elem_id="accessibility")
+
+
+if __name__ == "__main__":
+    demo.queue().launch(debug=True, share=True)

app/flux.1/fill/utils.py

+import argparse
+
+
+def get_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "-p", "--precision", type=str, default="int4", choices=["int4", "bf16"], help="Which precisions to use"
+    )
+    parser.add_argument("--use-qencoder", action="store_true", help="Whether to use 4-bit text encoder")
+    parser.add_argument("--no-safety-checker", action="store_true", help="Disable safety checker")
+    parser.add_argument("--count-use", action="store_true", help="Whether to count the number of uses")
+    args = parser.parse_args()
+    return args

app/flux.1/fill/vars.py

+STYLES = {
+    "None": "{prompt}",
+    "Cinematic": "cinematic still {prompt}. emotional, harmonious, vignette, highly detailed, high budget, bokeh, cinemascope, moody, epic, gorgeous, film grain, grainy",
+    "3D Model": "professional 3d model {prompt}. octane render, highly detailed, volumetric, dramatic lighting",
+    "Anime": "anime artwork {prompt}. anime style, key visual, vibrant, studio anime,  highly detailed",
+    "Digital Art": "concept art {prompt}. digital artwork, illustrative, painterly, matte painting, highly detailed",
+    "Photographic": "cinematic photo {prompt}. 35mm photograph, film, bokeh, professional, 4k, highly detailed",
+    "Pixel art": "pixel-art {prompt}. low-res, blocky, pixel art style, 8-bit graphics",
+    "Fantasy art": "ethereal fantasy concept art of  {prompt}. magnificent, celestial, ethereal, painterly, epic, majestic, magical, fantasy art, cover art, dreamy",
+    "Neonpunk": "neonpunk style {prompt}. cyberpunk, vaporwave, neon, vibes, vibrant, stunningly beautiful, crisp, detailed, sleek, ultramodern, magenta highlights, dark purple shadows, high contrast, cinematic, ultra detailed, intricate, professional",
+    "Manga": "manga style {prompt}. vibrant, high-energy, detailed, iconic, Japanese comic style",
+}
+DEFAULT_STYLE_NAME = "3D Model"
+STYLE_NAMES = list(STYLES.keys())
+
+MAX_SEED = 1000000000
+DEFAULT_GUIDANCE = 30
+DEFAULT_INFERENCE_STEP = 50