rebuild base modules

diffsynth/prompters/sdxl_prompter.py

@@ -0,0 +1,61 @@
+from .base_prompter import BasePrompter, tokenize_long_prompt
+from ..models.model_manager import ModelManager
+from ..models import SDXLTextEncoder, SDXLTextEncoder2
+from transformers import CLIPTokenizer
+import torch, os
+
+
+
+class SDXLPrompter(BasePrompter):
+    def __init__(
+        self,
+        tokenizer_path=None,
+        tokenizer_2_path=None
+    ):
+        if tokenizer_path is None:
+            base_path = os.path.dirname(os.path.dirname(__file__))
+            tokenizer_path = os.path.join(base_path, "tokenizer_configs/stable_diffusion/tokenizer")
+        if tokenizer_2_path is None:
+            base_path = os.path.dirname(os.path.dirname(__file__))
+            tokenizer_2_path = os.path.join(base_path, "tokenizer_configs/stable_diffusion_xl/tokenizer_2")
+        super().__init__()
+        self.tokenizer = CLIPTokenizer.from_pretrained(tokenizer_path)
+        self.tokenizer_2 = CLIPTokenizer.from_pretrained(tokenizer_2_path)
+        self.text_encoder: SDXLTextEncoder = None
+        self.text_encoder_2: SDXLTextEncoder2 = None
+
+    
+    def fetch_models(self, text_encoder: SDXLTextEncoder = None, text_encoder_2: SDXLTextEncoder2 = None):
+        self.text_encoder = text_encoder
+        self.text_encoder_2 = text_encoder_2
+    
+    
+    def encode_prompt(
+        self,
+        prompt,
+        clip_skip=1,
+        clip_skip_2=2,
+        positive=True,
+        device="cuda"
+    ):
+        prompt = self.process_prompt(prompt, positive=positive)
+        
+        # 1
+        input_ids = tokenize_long_prompt(self.tokenizer, prompt).to(device)
+        prompt_emb_1 = self.text_encoder(input_ids, clip_skip=clip_skip)
+
+        # 2
+        input_ids_2 = tokenize_long_prompt(self.tokenizer_2, prompt).to(device)
+        add_text_embeds, prompt_emb_2 = self.text_encoder_2(input_ids_2, clip_skip=clip_skip_2)
+
+        # Merge
+        if prompt_emb_1.shape[0] != prompt_emb_2.shape[0]:
+            max_batch_size = min(prompt_emb_1.shape[0], prompt_emb_2.shape[0])
+            prompt_emb_1 = prompt_emb_1[: max_batch_size]
+            prompt_emb_2 = prompt_emb_2[: max_batch_size]
+        prompt_emb = torch.concatenate([prompt_emb_1, prompt_emb_2], dim=-1)
+
+        # For very long prompt, we only use the first 77 tokens to compute `add_text_embeds`.
+        add_text_embeds = add_text_embeds[0:1]
+        prompt_emb = prompt_emb.reshape((1, prompt_emb.shape[0]*prompt_emb.shape[1], -1))
+        return add_text_embeds, prompt_emb