Upload sd_hijack.py

sd_hijack.py

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+import math
+import os
+import sys
+import traceback
+import torch
+import numpy as np
+from torch import einsum
+from torch.nn.functional import silu
+
+import modules.textual_inversion.textual_inversion
+from modules import prompt_parser, devices, sd_hijack_optimizations, shared, sd_hijack_checkpoint
+from modules.hypernetworks import hypernetwork
+from modules.shared import opts, device, cmd_opts
+from modules import sd_hijack_clip, sd_hijack_open_clip
+
+from modules.sd_hijack_optimizations import invokeAI_mps_available
+
+import ldm.modules.attention
+import ldm.modules.diffusionmodules.model
+import ldm.models.diffusion.ddim
+import ldm.models.diffusion.plms
+import ldm.modules.encoders.modules
+
+attention_CrossAttention_forward = ldm.modules.attention.CrossAttention.forward
+diffusionmodules_model_nonlinearity = ldm.modules.diffusionmodules.model.nonlinearity
+diffusionmodules_model_AttnBlock_forward = ldm.modules.diffusionmodules.model.AttnBlock.forward
+
+# new memory efficient cross attention blocks do not support hypernets and we already
+# have memory efficient cross attention anyway, so this disables SD2.0's memory efficient cross attention
+ldm.modules.attention.MemoryEfficientCrossAttention = ldm.modules.attention.CrossAttention
+ldm.modules.attention.BasicTransformerBlock.ATTENTION_MODES["softmax-xformers"] = ldm.modules.attention.CrossAttention
+
+# silence new console spam from SD2
+ldm.modules.attention.print = lambda *args: None
+ldm.modules.diffusionmodules.model.print = lambda *args: None
+
+def apply_optimizations():
+    undo_optimizations()
+
+    ldm.modules.diffusionmodules.model.nonlinearity = silu
+
+    if cmd_opts.force_enable_xformers or (cmd_opts.xformers and shared.xformers_available and torch.version.cuda and (6, 0) <= torch.cuda.get_device_capability(shared.device) <= (9, 0)):
+        print("Applying xformers cross attention optimization.")
+        ldm.modules.attention.CrossAttention.forward = sd_hijack_optimizations.xformers_attention_forward
+        ldm.modules.diffusionmodules.model.AttnBlock.forward = sd_hijack_optimizations.xformers_attnblock_forward
+    elif cmd_opts.opt_split_attention_v1:
+        print("Applying v1 cross attention optimization.")
+        ldm.modules.attention.CrossAttention.forward = sd_hijack_optimizations.split_cross_attention_forward_v1
+    elif not cmd_opts.disable_opt_split_attention and (cmd_opts.opt_split_attention_invokeai or not torch.cuda.is_available()):
+        if not invokeAI_mps_available and shared.device.type == 'mps':
+            print("The InvokeAI cross attention optimization for MPS requires the psutil package which is not installed.")
+            print("Applying v1 cross attention optimization.")
+            ldm.modules.attention.CrossAttention.forward = sd_hijack_optimizations.split_cross_attention_forward_v1
+        else:
+            print("Applying cross attention optimization (InvokeAI).")
+            ldm.modules.attention.CrossAttention.forward = sd_hijack_optimizations.split_cross_attention_forward_invokeAI
+    elif not cmd_opts.disable_opt_split_attention and (cmd_opts.opt_split_attention or torch.cuda.is_available()):
+        print("Applying cross attention optimization (Doggettx).")
+        ldm.modules.attention.CrossAttention.forward = sd_hijack_optimizations.split_cross_attention_forward
+        ldm.modules.diffusionmodules.model.AttnBlock.forward = sd_hijack_optimizations.cross_attention_attnblock_forward
+
+
+def undo_optimizations():
+    ldm.modules.attention.CrossAttention.forward = hypernetwork.attention_CrossAttention_forward
+    ldm.modules.diffusionmodules.model.nonlinearity = diffusionmodules_model_nonlinearity
+    ldm.modules.diffusionmodules.model.AttnBlock.forward = diffusionmodules_model_AttnBlock_forward
+
+
+def fix_checkpoint():
+    ldm.modules.attention.BasicTransformerBlock.forward = sd_hijack_checkpoint.BasicTransformerBlock_forward
+    ldm.modules.diffusionmodules.openaimodel.ResBlock.forward = sd_hijack_checkpoint.ResBlock_forward
+    ldm.modules.diffusionmodules.openaimodel.AttentionBlock.forward = sd_hijack_checkpoint.AttentionBlock_forward
+
+class StableDiffusionModelHijack:
+    fixes = None
+    comments = []
+    layers = None
+    circular_enabled = False
+    clip = None
+
+    embedding_db = modules.textual_inversion.textual_inversion.EmbeddingDatabase(cmd_opts.embeddings_dir)
+
+        def hijack(self, m, use_improved_clip=True):
+
+        if type(m.cond_stage_model) == ldm.modules.encoders.modules.FrozenCLIPEmbedder:
+            if use_improved_clip:
+                from transformers import CLIPTextModel, CLIPTokenizer
+                device = "cuda" if torch.cuda.is_available() else "cpu"
+                m.cond_stage_model.transformer = CLIPTextModel.from_pretrained("openai/clip-vit-large-patch14-336").to(device)
+                m.cond_stage_model.tokenizer = CLIPTokenizer.from_pretrained("openai/clip-vit-large-patch14-336")
+            model_embeddings = m.cond_stage_model.transformer.text_model.embeddings
+            model_embeddings.token_embedding = EmbeddingsWithFixes(model_embeddings.token_embedding, self)
+            m.cond_stage_model = sd_hijack_clip.FrozenCLIPEmbedderWithCustomWords(m.cond_stage_model, self)
+        elif type(m.cond_stage_model) == ldm.modules.encoders.modules.FrozenOpenCLIPEmbedder:
+            m.cond_stage_model.model.token_embedding = EmbeddingsWithFixes(m.cond_stage_model.model.token_embedding, self)
+            m.cond_stage_model = sd_hijack_open_clip.FrozenOpenCLIPEmbedderWithCustomWords(m.cond_stage_model, self)
+        self.clip = m.cond_stage_model
+
+        apply_optimizations()
+        fix_checkpoint()
+
+        def flatten(el):
+            flattened = [flatten(children) for children in el.children()]
+            res = [el]
+            for c in flattened:
+                res += c
+            return res
+
+        self.layers = flatten(m)
+
+    def undo_hijack(self, m):
+        if type(m.cond_stage_model) == sd_hijack_clip.FrozenCLIPEmbedderWithCustomWords:
+            m.cond_stage_model = m.cond_stage_model.wrapped
+
+            model_embeddings = m.cond_stage_model.transformer.text_model.embeddings
+            if type(model_embeddings.token_embedding) == EmbeddingsWithFixes:
+                model_embeddings.token_embedding = model_embeddings.token_embedding.wrapped
+        elif type(m.cond_stage_model) == sd_hijack_open_clip.FrozenOpenCLIPEmbedderWithCustomWords:
+            m.cond_stage_model.wrapped.model.token_embedding = m.cond_stage_model.wrapped.model.token_embedding.wrapped
+            m.cond_stage_model = m.cond_stage_model.wrapped
+
+        self.apply_circular(False)
+        self.layers = None
+        self.clip = None
+
+    def apply_circular(self, enable):
+        if self.circular_enabled == enable:
+            return
+
+        self.circular_enabled = enable
+
+        for layer in [layer for layer in self.layers if type(layer) == torch.nn.Conv2d]:
+            layer.padding_mode = 'circular' if enable else 'zeros'
+
+    def clear_comments(self):
+        self.comments = []
+
+    def tokenize(self, text):
+        _, remade_batch_tokens, _, _, _, token_count = self.clip.process_text([text])
+        return remade_batch_tokens[0], token_count, sd_hijack_clip.get_target_prompt_token_count(token_count)
+
+
+
+class EmbeddingsWithFixes(torch.nn.Module):
+    def __init__(self, wrapped, embeddings):
+        super().__init__()
+        self.wrapped = wrapped
+        self.embeddings = embeddings
+
+    def forward(self, input_ids):
+        batch_fixes = self.embeddings.fixes
+        self.embeddings.fixes = None
+
+        inputs_embeds = self.wrapped(input_ids)
+
+        if batch_fixes is None or len(batch_fixes) == 0 or max([len(x) for x in batch_fixes]) == 0:
+            return inputs_embeds
+
+        vecs = []
+        for fixes, tensor in zip(batch_fixes, inputs_embeds):
+            for offset, embedding in fixes:
+                emb = embedding.vec
+                emb_len = min(tensor.shape[0] - offset - 1, emb.shape[0])
+                tensor = torch.cat([tensor[0:offset + 1], emb[0:emb_len], tensor[offset + 1 + emb_len:]])
+
+            vecs.append(tensor)
+
+        return torch.stack(vecs)
+
+
+def add_circular_option_to_conv_2d():
+    conv2d_constructor = torch.nn.Conv2d.__init__
+
+    def conv2d_constructor_circular(self, *args, **kwargs):
+        return conv2d_constructor(self, *args, padding_mode='circular', **kwargs)
+
+    torch.nn.Conv2d.__init__ = conv2d_constructor_circular
+
+
+model_hijack = StableDiffusionModelHijack()
+
+
+def register_buffer(self, name, attr):
+    """
+    Fix register buffer bug for Mac OS.
+    """
+
+    if type(attr) == torch.Tensor:
+        if attr.device != devices.device:
+
+            if devices.has_mps():
+                attr = attr.to(device="mps", dtype=torch.float32)
+            else:
+                attr = attr.to(devices.device)
+
+    setattr(self, name, attr)
+
+
+ldm.models.diffusion.ddim.DDIMSampler.register_buffer = register_buffer
+ldm.models.diffusion.plms.PLMSSampler.register_buffer = register_buffer