Make the upscale button update the gallery with the new image rather than replace it.

modules/txt2img.py

@@ -7,36 +7,15 @@ from modules.infotext_utils import create_override_settings_dict
 from modules.shared import opts
 import modules.shared as shared
 from modules.ui import plaintext_to_html
+from PIL import Image
 import gradio as gr
 
 
-def txt2img_upscale(id_task: str, request: gr.Request, gallery, gallery_index, generation_info, *args):
-    assert len(gallery) > 0, 'No image to upscale'
-    assert 0 <= gallery_index < len(gallery), f'Bad image index: {gallery_index}'
-
-    geninfo = json.loads(generation_info)
-    all_seeds = geninfo["all_seeds"]
-
-    image_info = gallery[gallery_index] if 0 <= gallery_index < len(gallery) else gallery[0]
-    image = infotext_utils.image_from_url_text(image_info)
-
-    gallery_index_from_end = len(gallery) - gallery_index
-    image.seed = all_seeds[-gallery_index_from_end if gallery_index_from_end < len(all_seeds) + 1 else 0]
-
-    return txt2img(id_task, request, *args, firstpass_image=image)
-
-
-def txt2img(id_task: str, request: gr.Request, prompt: str, negative_prompt: str, prompt_styles, steps: int, sampler_name: str, n_iter: int, batch_size: int, cfg_scale: float, height: int, width: int, enable_hr: bool, denoising_strength: float, hr_scale: float, hr_upscaler: str, hr_second_pass_steps: int, hr_resize_x: int, hr_resize_y: int, hr_checkpoint_name: str, hr_sampler_name: str, hr_prompt: str, hr_negative_prompt, override_settings_texts, *args, firstpass_image=None):
+def txt2img_create_processing(id_task: str, request: gr.Request, prompt: str, negative_prompt: str, prompt_styles, steps: int, sampler_name: str, n_iter: int, batch_size: int, cfg_scale: float, height: int, width: int, enable_hr: bool, denoising_strength: float, hr_scale: float, hr_upscaler: str, hr_second_pass_steps: int, hr_resize_x: int, hr_resize_y: int, hr_checkpoint_name: str, hr_sampler_name: str, hr_prompt: str, hr_negative_prompt, override_settings_texts, *args, force_enable_hr=False):
     override_settings = create_override_settings_dict(override_settings_texts)
 
-    if firstpass_image is not None:
-        seed = getattr(firstpass_image, 'seed', None)
-        if seed:
-            args = modules.scripts.scripts_txt2img.set_named_arg(args, 'ScriptSeed', 'seed', seed)
-
+    if force_enable_hr:
         enable_hr = True
-        batch_size = 1
-        n_iter = 1
 
     p = processing.StableDiffusionProcessingTxt2Img(
         sd_model=shared.sd_model,
@@ -53,7 +32,7 @@ def txt2img(id_task: str, request: gr.Request, prompt: str, negative_prompt: str
         width=width,
         height=height,
         enable_hr=enable_hr,
-        denoising_strength=denoising_strength if enable_hr else None,
+        denoising_strength=denoising_strength,
         hr_scale=hr_scale,
         hr_upscaler=hr_upscaler,
         hr_second_pass_steps=hr_second_pass_steps,
@@ -64,7 +43,6 @@ def txt2img(id_task: str, request: gr.Request, prompt: str, negative_prompt: str
         hr_prompt=hr_prompt,
         hr_negative_prompt=hr_negative_prompt,
         override_settings=override_settings,
-        firstpass_image=firstpass_image,
     )
 
     p.scripts = modules.scripts.scripts_txt2img
@@ -75,8 +53,61 @@ def txt2img(id_task: str, request: gr.Request, prompt: str, negative_prompt: str
     if shared.opts.enable_console_prompts:
         print(f"\ntxt2img: {prompt}", file=shared.progress_print_out)
 
+    return p
+
+
+def txt2img_upscale(id_task: str, request: gr.Request, gallery, gallery_index, generation_info, *args):
+    assert len(gallery) > 0, 'No image to upscale'
+    assert 0 <= gallery_index < len(gallery), f'Bad image index: {gallery_index}'
+
+    p = txt2img_create_processing(id_task, request, *args)
+    p.enable_hr = True
+    p.batch_size = 1
+    p.n_iter = 1
+
+    geninfo = json.loads(generation_info)
+    all_seeds = geninfo["all_seeds"]
+
+    image_info = gallery[gallery_index] if 0 <= gallery_index < len(gallery) else gallery[0]
+    p.firstpass_image = infotext_utils.image_from_url_text(image_info)
+
+    gallery_index_from_end = len(gallery) - gallery_index
+    seed = all_seeds[-gallery_index_from_end if gallery_index_from_end < len(all_seeds) + 1 else 0]
+    p.script_args = modules.scripts.scripts_txt2img.set_named_arg(p.script_args, 'ScriptSeed', 'seed', seed)
+
     with closing(p):
-        processed = modules.scripts.scripts_txt2img.run(p, *args)
+        processed = modules.scripts.scripts_txt2img.run(p, *p.script_args)
+
+        if processed is None:
+            processed = processing.process_images(p)
+
+    shared.total_tqdm.clear()
+
+    new_gallery = []
+    for i, image in enumerate(gallery):
+        fake_image = Image.new(mode="RGB", size=(1, 1))
+
+        if i == gallery_index:
+            already_saved_as = getattr(processed.images[0], 'already_saved_as', None)
+            if already_saved_as is not None:
+                fake_image.already_saved_as = already_saved_as
+            else:
+                fake_image = processed.images[0]
+        else:
+            fake_image.already_saved_as = image["name"]
+
+        new_gallery.append(fake_image)
+
+    geninfo["infotexts"][gallery_index] = processed.info
+
+    return new_gallery, json.dumps(geninfo), plaintext_to_html(processed.info), plaintext_to_html(processed.comments, classname="comments")
+
+
+def txt2img(id_task: str, request: gr.Request, *args):
+    p = txt2img_create_processing(id_task, request, *args)
+
+    with closing(p):
+        processed = modules.scripts.scripts_txt2img.run(p, *p.script_args)
 
         if processed is None:
             processed = processing.process_images(p)