app.py

import gradio as gr
import sys
from starline import process

from utils import load_cn_model, load_cn_config, randomname
from convertor import pil2cv, cv2pil

from sd_model import get_cn_pipeline, generate, get_cn_detector
import cv2
import os
import numpy as np
from PIL import Image
import zipfile

path = os.getcwd()
output_dir = f"{path}/output"
input_dir = f"{path}/input"
cn_lineart_dir = f"{path}/controlnet/lineart"

load_cn_model(cn_lineart_dir)
load_cn_config(cn_lineart_dir)


def zip_png_files(folder_path):
    # Zipファイルの名前を設定（フォルダ名と同じにします）
    zip_path = os.path.join(folder_path, 'output.zip')
    
    # zipfileオブジェクトを作成し、書き込みモードで開く
    with zipfile.ZipFile(zip_path, 'w') as zipf:
        # フォルダ内のすべてのファイルをループ処理
        for foldername, subfolders, filenames in os.walk(folder_path):
            for filename in filenames:
                # PNGファイルのみを対象にする
                if filename.endswith('.png'):
                    # ファイルのフルパスを取得
                    file_path = os.path.join(foldername, filename)
                    # zipファイルに追加
                    zipf.write(file_path, arcname=os.path.relpath(file_path, folder_path))


class webui:
    def __init__(self):
        self.demo = gr.Blocks()

    def undercoat(self, input_image, pos_prompt, neg_prompt, alpha_th, thickness, reference_flg, reference_img):
        org_line_image = input_image
        image = pil2cv(input_image)
        image = cv2.cvtColor(image, cv2.COLOR_BGRA2RGBA)

        index = np.where(image[:, :, 3] == 0)
        image[index] = [255, 255, 255, 255]
        input_image = cv2pil(image)

        pipe = get_cn_pipeline(reference_flg)
        detectors = get_cn_detector(input_image.resize((1024, 1024), Image.ANTIALIAS))
        

        gen_image = generate(pipe, detectors, pos_prompt, neg_prompt, reference_flg, reference_img)
        color_img, unfinished = process(gen_image.resize((image.shape[1], image.shape[0]), Image.ANTIALIAS) , org_line_image, alpha_th, thickness)
        #color_img = color_img.resize((image.shape[1], image.shape[0]) , Image.ANTIALIAS)


        output_img = Image.alpha_composite(color_img, org_line_image)
        name = randomname(10)
        if not os.path.exists(f"{output_dir}"):
            os.makedirs(f"{output_dir}")
        os.makedirs(f"{output_dir}/{name}")
        output_img.save(f"{output_dir}/{name}/output_image.png")
        org_line_image.save(f"{output_dir}/{name}/line_image.png")
        color_img.save(f"{output_dir}/{name}/color_image.png")
        unfinished.save(f"{output_dir}/{name}/unfinished_image.png")

        outputs = [output_img, org_line_image, color_img, unfinished]
        zip_png_files(f"{output_dir}/{name}")
        filename = f"{output_dir}/{name}/output.zip"

        return outputs, filename



    def launch(self, share):
        with self.demo:
            with gr.Row():
                with gr.Column():
                    input_image = gr.Image(type="pil", image_mode="RGBA", label="lineart")
                    pos_prompt = gr.Textbox(value="1girl, blue hair, pink shirts, bestquality, 4K", max_lines=1000, label="positive prompt")                    
                    neg_prompt = gr.Textbox(value=" (worst quality, low quality:1.2), (lowres:1.2), (bad anatomy:1.2), (greyscale, monochrome:1.4)", max_lines=1000, label="negative prompt")

                    alpha_th = gr.Slider(maximum = 255, value=100, label = "alpha threshold")
                    thickness = gr.Number(value=5, label="Thickness of correction area (Odd numbers need to be entered)")
                
                    reference_image = gr.Image(type="pil", image_mode="RGB", label="reference_image")
                    reference_flg = gr.Checkbox(value=True, label="reference_flg")
                    #gr.Slider(maximum = 21, value=3, step=2, label = "Thickness of correction area")

                    submit = gr.Button(value="Start")
                with gr.Row():
                    with gr.Column():
                        with gr.Tab("output"):
                            output_0 = gr.Gallery(format="png")
                        output_file = gr.File()
            submit.click(
                self.undercoat, 
                inputs=[input_image, pos_prompt, neg_prompt, alpha_th, thickness, reference_image, reference_flg], 
                outputs=[output_0, output_file]
            )

        self.demo.queue()
        self.demo.launch(share=share)


if __name__ == "__main__":
    ui = webui()
    if len(sys.argv) > 1:
        if sys.argv[1] == "share":
            ui.launch(share=True)
        else:
            ui.launch(share=False)
    else:
        ui.launch(share=False)