Create ace_inference.py

ace_inference.py

@@ -0,0 +1,549 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) Alibaba, Inc. and its affiliates.
+import copy
+import math
+import random
+
+import numpy as np
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+import torchvision.transforms.functional as TF
+from PIL import Image
+import torchvision.transforms as T
+from scepter.modules.model.registry import DIFFUSIONS
+from scepter.modules.model.utils.basic_utils import check_list_of_list
+from scepter.modules.model.utils.basic_utils import \
+    pack_imagelist_into_tensor_v2 as pack_imagelist_into_tensor
+from scepter.modules.model.utils.basic_utils import (
+    to_device, unpack_tensor_into_imagelist)
+from scepter.modules.utils.distribute import we
+from scepter.modules.utils.logger import get_logger
+
+from scepter.modules.inference.diffusion_inference import DiffusionInference, get_model
+
+
+def process_edit_image(images,
+                       masks,
+                       tasks,
+                       max_seq_len=1024,
+                       max_aspect_ratio=4,
+                       d=16,
+                       **kwargs):
+
+    if not isinstance(images, list):
+        images = [images]
+    if not isinstance(masks, list):
+        masks = [masks]
+    if not isinstance(tasks, list):
+        tasks = [tasks]
+
+    img_tensors = []
+    mask_tensors = []
+    for img, mask, task in zip(images, masks, tasks):
+        if mask is None or mask == '':
+            mask = Image.new('L', img.size, 0)
+        W, H = img.size
+        if H / W > max_aspect_ratio:
+            img = TF.center_crop(img, [int(max_aspect_ratio * W), W])
+            mask = TF.center_crop(mask, [int(max_aspect_ratio * W), W])
+        elif W / H > max_aspect_ratio:
+            img = TF.center_crop(img, [H, int(max_aspect_ratio * H)])
+            mask = TF.center_crop(mask, [H, int(max_aspect_ratio * H)])
+
+        H, W = img.height, img.width
+        scale = min(1.0, math.sqrt(max_seq_len / ((H / d) * (W / d))))
+        rH = int(H * scale) // d * d  # ensure divisible by self.d
+        rW = int(W * scale) // d * d
+
+        img = TF.resize(img, (rH, rW),
+                        interpolation=TF.InterpolationMode.BICUBIC)
+        mask = TF.resize(mask, (rH, rW),
+                         interpolation=TF.InterpolationMode.NEAREST_EXACT)
+
+        mask = np.asarray(mask)
+        mask = np.where(mask > 128, 1, 0)
+        mask = mask.astype(
+            np.float32) if np.any(mask) else np.ones_like(mask).astype(
+                np.float32)
+
+        img_tensor = TF.to_tensor(img).to(we.device_id)
+        img_tensor = TF.normalize(img_tensor,
+                                  mean=[0.5, 0.5, 0.5],
+                                  std=[0.5, 0.5, 0.5])
+        mask_tensor = TF.to_tensor(mask).to(we.device_id)
+        if task in ['inpainting', 'Try On', 'Inpainting']:
+            mask_indicator = mask_tensor.repeat(3, 1, 1)
+            img_tensor[mask_indicator == 1] = -1.0
+        img_tensors.append(img_tensor)
+        mask_tensors.append(mask_tensor)
+    return img_tensors, mask_tensors
+
+
+class TextEmbedding(nn.Module):
+    def __init__(self, embedding_shape):
+        super().__init__()
+        self.pos = nn.Parameter(data=torch.zeros(embedding_shape))
+
+class RefinerInference(DiffusionInference):
+    def init_from_cfg(self, cfg):
+        super().init_from_cfg(cfg)
+        self.diffusion = DIFFUSIONS.build(cfg.MODEL.DIFFUSION, logger=self.logger) \
+            if cfg.MODEL.have('DIFFUSION') else None
+        self.max_seq_length = cfg.MODEL.get("MAX_SEQ_LENGTH", 4096)
+        assert self.diffusion is not None
+        self.dynamic_load(self.cond_stage_model, 'cond_stage_model')
+        self.dynamic_load(self.diffusion_model, 'diffusion_model')
+        self.dynamic_load(self.first_stage_model, 'first_stage_model')
+
+    @torch.no_grad()
+    def encode_first_stage(self, x, **kwargs):
+        _, dtype = self.get_function_info(self.first_stage_model, 'encode')
+        with torch.autocast('cuda',
+                            enabled=dtype in ('float16', 'bfloat16'),
+                            dtype=getattr(torch, dtype)):
+            def run_one_image(u):
+                zu = get_model(self.first_stage_model).encode(u)
+                if isinstance(zu, (tuple, list)):
+                    zu = zu[0]
+                return zu
+            z = [run_one_image(u.unsqueeze(0) if u.dim == 3 else u) for u in x]
+            return z
+    def upscale_resize(self, image, interpolation=T.InterpolationMode.BILINEAR):
+        c, H, W = image.shape
+        scale = max(1.0, math.sqrt(self.max_seq_length / ((H / 16) * (W / 16))))
+        rH = int(H * scale) // 16 * 16  # ensure divisible by self.d
+        rW = int(W * scale) // 16 * 16
+        image = T.Resize((rH, rW), interpolation=interpolation, antialias=True)(image)
+        return image
+    @torch.no_grad()
+    def decode_first_stage(self, z):
+        _, dtype = self.get_function_info(self.first_stage_model, 'decode')
+        with torch.autocast('cuda',
+                            enabled=dtype in ('float16', 'bfloat16'),
+                            dtype=getattr(torch, dtype)):
+            return [get_model(self.first_stage_model).decode(zu) for zu in z]
+
+    def noise_sample(self, num_samples, h, w, seed, device = None, dtype = torch.bfloat16):
+        noise = torch.randn(
+            num_samples,
+            16,
+            # allow for packing
+            2 * math.ceil(h / 16),
+            2 * math.ceil(w / 16),
+            device=device,
+            dtype=dtype,
+            generator=torch.Generator(device=device).manual_seed(seed),
+        )
+        return noise
+    def refine(self,
+               x_samples=None,
+               prompt=None,
+               reverse_scale=-1.,
+               seed = 2024,
+               use_dynamic_model = False,
+               **kwargs
+               ):
+        print(prompt)
+        value_input = copy.deepcopy(self.input)
+        x_samples = [self.upscale_resize(x) for x in x_samples]
+
+        noise = []
+        for i, x in enumerate(x_samples):
+            noise_ = self.noise_sample(1, x.shape[1],
+                                       x.shape[2], seed,
+                                       device = x.device)
+            noise.append(noise_)
+        noise, x_shapes = pack_imagelist_into_tensor(noise)
+        if reverse_scale > 0:
+            if use_dynamic_model: self.dynamic_load(self.first_stage_model, 'first_stage_model')
+            x_samples = [x.unsqueeze(0) for x in x_samples]
+            x_start = self.encode_first_stage(x_samples, **kwargs)
+            if use_dynamic_model: self.dynamic_unload(self.first_stage_model,
+                                'first_stage_model',
+                                skip_loaded=True)
+            x_start, _ = pack_imagelist_into_tensor(x_start)
+        else:
+            x_start = None
+        # cond stage
+        if use_dynamic_model: self.dynamic_load(self.cond_stage_model, 'cond_stage_model')
+        function_name, dtype = self.get_function_info(self.cond_stage_model)
+        with torch.autocast('cuda',
+                            enabled=dtype == 'float16',
+                            dtype=getattr(torch, dtype)):
+            ctx = getattr(get_model(self.cond_stage_model),
+                          function_name)(prompt)
+            ctx["x_shapes"] = x_shapes
+        if use_dynamic_model: self.dynamic_unload(self.cond_stage_model,
+                            'cond_stage_model',
+                            skip_loaded=True)
+
+
+        if use_dynamic_model: self.dynamic_load(self.diffusion_model, 'diffusion_model')
+        # UNet use input n_prompt
+        function_name, dtype = self.get_function_info(
+            self.diffusion_model)
+        with torch.autocast('cuda',
+                            enabled=dtype in ('float16', 'bfloat16'),
+                            dtype=getattr(torch, dtype)):
+            solver_sample = value_input.get('sample', 'flow_euler')
+            sample_steps = value_input.get('sample_steps', 20)
+            guide_scale = value_input.get('guide_scale', 3.5)
+            if guide_scale is not None:
+                guide_scale = torch.full((noise.shape[0],), guide_scale, device=noise.device,
+                                         dtype=noise.dtype)
+            else:
+                guide_scale = None
+            latent = self.diffusion.sample(
+                noise=noise,
+                sampler=solver_sample,
+                model=get_model(self.diffusion_model),
+                model_kwargs={"cond": ctx, "guidance": guide_scale},
+                steps=sample_steps,
+                show_progress=True,
+                guide_scale=guide_scale,
+                return_intermediate=None,
+                reverse_scale=reverse_scale,
+                x=x_start,
+                **kwargs).float()
+        latent = unpack_tensor_into_imagelist(latent, x_shapes)
+        if use_dynamic_model: self.dynamic_unload(self.diffusion_model,
+                            'diffusion_model',
+                            skip_loaded=True)
+        if use_dynamic_model: self.dynamic_load(self.first_stage_model, 'first_stage_model')
+        x_samples = self.decode_first_stage(latent)
+        if use_dynamic_model: self.dynamic_unload(self.first_stage_model,
+                            'first_stage_model',
+                            skip_loaded=True)
+        return x_samples
+
+
+class ACEInference(DiffusionInference):
+    def __init__(self, logger=None):
+        if logger is None:
+            logger = get_logger(name='scepter')
+        self.logger = logger
+        self.loaded_model = {}
+        self.loaded_model_name = [
+            'diffusion_model', 'first_stage_model', 'cond_stage_model'
+        ]
+
+    def init_from_cfg(self, cfg):
+        self.name = cfg.NAME
+        self.is_default = cfg.get('IS_DEFAULT', False)
+        self.use_dynamic_model = cfg.get('USE_DYNAMIC_MODEL', True)
+        module_paras = self.load_default(cfg.get('DEFAULT_PARAS', None))
+        assert cfg.have('MODEL')
+
+        self.diffusion_model = self.infer_model(
+            cfg.MODEL.DIFFUSION_MODEL, module_paras.get(
+                'DIFFUSION_MODEL',
+                None)) if cfg.MODEL.have('DIFFUSION_MODEL') else None
+        self.first_stage_model = self.infer_model(
+            cfg.MODEL.FIRST_STAGE_MODEL,
+            module_paras.get(
+                'FIRST_STAGE_MODEL',
+                None)) if cfg.MODEL.have('FIRST_STAGE_MODEL') else None
+        self.cond_stage_model = self.infer_model(
+            cfg.MODEL.COND_STAGE_MODEL,
+            module_paras.get(
+                'COND_STAGE_MODEL',
+                None)) if cfg.MODEL.have('COND_STAGE_MODEL') else None
+
+        self.refiner_model_cfg = cfg.get('REFINER_MODEL', None)
+        # self.refiner_scale = cfg.get('REFINER_SCALE', 0.)
+        # self.refiner_prompt = cfg.get('REFINER_PROMPT', "")
+        self.ace_prompt = cfg.get("ACE_PROMPT", [])
+        if self.refiner_model_cfg:
+            self.refiner_module = RefinerInference(self.logger)
+            self.refiner_module.init_from_cfg(self.refiner_model_cfg)
+        else:
+            self.refiner_module = None
+
+        self.diffusion = DIFFUSIONS.build(cfg.MODEL.DIFFUSION,
+                                          logger=self.logger)
+
+
+        self.interpolate_func = lambda x: (F.interpolate(
+            x.unsqueeze(0),
+            scale_factor=1 / self.size_factor,
+            mode='nearest-exact') if x is not None else None)
+        self.text_indentifers = cfg.MODEL.get('TEXT_IDENTIFIER', [])
+        self.use_text_pos_embeddings = cfg.MODEL.get('USE_TEXT_POS_EMBEDDINGS',
+                                                     False)
+        if self.use_text_pos_embeddings:
+            self.text_position_embeddings = TextEmbedding(
+                (10, 4096)).eval().requires_grad_(False).to(we.device_id)
+        else:
+            self.text_position_embeddings = None
+
+        self.max_seq_len = cfg.MODEL.DIFFUSION_MODEL.MAX_SEQ_LEN
+        self.scale_factor = cfg.get('SCALE_FACTOR', 0.18215)
+        self.size_factor = cfg.get('SIZE_FACTOR', 8)
+        self.decoder_bias = cfg.get('DECODER_BIAS', 0)
+        self.default_n_prompt = cfg.get('DEFAULT_N_PROMPT', '')
+        self.dynamic_load(self.cond_stage_model, 'cond_stage_model')
+        self.dynamic_load(self.diffusion_model, 'diffusion_model')
+        self.dynamic_load(self.first_stage_model, 'first_stage_model')
+
+    @torch.no_grad()
+    def encode_first_stage(self, x, **kwargs):
+        _, dtype = self.get_function_info(self.first_stage_model, 'encode')
+        with torch.autocast('cuda',
+                            enabled=(dtype != 'float32'),
+                            dtype=getattr(torch, dtype)):
+            z = [
+                self.scale_factor * get_model(self.first_stage_model)._encode(
+                    i.unsqueeze(0).to(getattr(torch, dtype))) for i in x
+            ]
+        return z
+
+    @torch.no_grad()
+    def decode_first_stage(self, z):
+        _, dtype = self.get_function_info(self.first_stage_model, 'decode')
+        with torch.autocast('cuda',
+                            enabled=(dtype != 'float32'),
+                            dtype=getattr(torch, dtype)):
+            x = [
+                get_model(self.first_stage_model)._decode(
+                    1. / self.scale_factor * i.to(getattr(torch, dtype)))
+                for i in z
+            ]
+        return x
+
+
+
+    @torch.no_grad()
+    def __call__(self,
+                 image=None,
+                 mask=None,
+                 prompt='',
+                 task=None,
+                 negative_prompt='',
+                 output_height=512,
+                 output_width=512,
+                 sampler='ddim',
+                 sample_steps=20,
+                 guide_scale=4.5,
+                 guide_rescale=0.5,
+                 seed=-1,
+                 history_io=None,
+                 tar_index=0,
+                 **kwargs):
+        input_image, input_mask = image, mask
+        g = torch.Generator(device=we.device_id)
+        seed = seed if seed >= 0 else random.randint(0, 2**32 - 1)
+        g.manual_seed(int(seed))
+        if input_image is not None:
+            # assert isinstance(input_image, list) and isinstance(input_mask, list)
+            if task is None:
+                task = [''] * len(input_image)
+            if not isinstance(prompt, list):
+                prompt = [prompt] * len(input_image)
+            if history_io is not None and len(history_io) > 0:
+                his_image, his_maks, his_prompt, his_task = history_io[
+                    'image'], history_io['mask'], history_io[
+                        'prompt'], history_io['task']
+                assert len(his_image) == len(his_maks) == len(
+                    his_prompt) == len(his_task)
+                input_image = his_image + input_image
+                input_mask = his_maks + input_mask
+                task = his_task + task
+                prompt = his_prompt + [prompt[-1]]
+                prompt = [
+                    pp.replace('{image}', f'{{image{i}}}') if i > 0 else pp
+                    for i, pp in enumerate(prompt)
+                ]
+
+            edit_image, edit_image_mask = process_edit_image(
+                input_image, input_mask, task, max_seq_len=self.max_seq_len)
+
+            image, image_mask = edit_image[tar_index], edit_image_mask[
+                tar_index]
+            edit_image, edit_image_mask = [edit_image], [edit_image_mask]
+
+        else:
+            edit_image = edit_image_mask = [[]]
+            image = torch.zeros(
+                size=[3, int(output_height),
+                      int(output_width)])
+            image_mask = torch.ones(
+                size=[1, int(output_height),
+                      int(output_width)])
+            if not isinstance(prompt, list):
+                prompt = [prompt]
+
+        image, image_mask, prompt = [image], [image_mask], [prompt]
+        assert check_list_of_list(prompt) and check_list_of_list(
+            edit_image) and check_list_of_list(edit_image_mask)
+        # Assign Negative Prompt
+        if isinstance(negative_prompt, list):
+            negative_prompt = negative_prompt[0]
+        assert isinstance(negative_prompt, str)
+
+        n_prompt = copy.deepcopy(prompt)
+        for nn_p_id, nn_p in enumerate(n_prompt):
+            assert isinstance(nn_p, list)
+            n_prompt[nn_p_id][-1] = negative_prompt
+
+        is_txt_image = sum([len(e_i) for e_i in edit_image]) < 1
+        image = to_device(image)
+
+        refiner_scale = kwargs.pop("refiner_scale", 0.0)
+        refiner_prompt = kwargs.pop("refiner_prompt", "")
+        use_ace = kwargs.pop("use_ace", True)
+        # <= 0 use ace as the txt2img generator.
+        if use_ace and (not is_txt_image or refiner_scale <= 0):
+            ctx, null_ctx = {}, {}
+            # Get Noise Shape
+            self.dynamic_load(self.first_stage_model, 'first_stage_model')
+            x = self.encode_first_stage(image)
+            self.dynamic_unload(self.first_stage_model,
+                                'first_stage_model',
+                                skip_loaded=True)
+            noise = [
+                torch.empty(*i.shape, device=we.device_id).normal_(generator=g)
+                for i in x
+            ]
+            noise, x_shapes = pack_imagelist_into_tensor(noise)
+            ctx['x_shapes'] = null_ctx['x_shapes'] = x_shapes
+
+            image_mask = to_device(image_mask, strict=False)
+            cond_mask = [self.interpolate_func(i) for i in image_mask
+                         ] if image_mask is not None else [None] * len(image)
+            ctx['x_mask'] = null_ctx['x_mask'] = cond_mask
+
+            # Encode Prompt
+            self.dynamic_load(self.cond_stage_model, 'cond_stage_model')
+            function_name, dtype = self.get_function_info(self.cond_stage_model)
+            cont, cont_mask = getattr(get_model(self.cond_stage_model),
+                                      function_name)(prompt)
+            cont, cont_mask = self.cond_stage_embeddings(prompt, edit_image, cont,
+                                                         cont_mask)
+            null_cont, null_cont_mask = getattr(get_model(self.cond_stage_model),
+                                                function_name)(n_prompt)
+            null_cont, null_cont_mask = self.cond_stage_embeddings(
+                prompt, edit_image, null_cont, null_cont_mask)
+            self.dynamic_unload(self.cond_stage_model,
+                                'cond_stage_model',
+                                skip_loaded=False)
+            ctx['crossattn'] = cont
+            null_ctx['crossattn'] = null_cont
+
+            # Encode Edit Images
+            self.dynamic_load(self.first_stage_model, 'first_stage_model')
+            edit_image = [to_device(i, strict=False) for i in edit_image]
+            edit_image_mask = [to_device(i, strict=False) for i in edit_image_mask]
+            e_img, e_mask = [], []
+            for u, m in zip(edit_image, edit_image_mask):
+                if u is None:
+                    continue
+                if m is None:
+                    m = [None] * len(u)
+                e_img.append(self.encode_first_stage(u, **kwargs))
+                e_mask.append([self.interpolate_func(i) for i in m])
+            self.dynamic_unload(self.first_stage_model,
+                                'first_stage_model',
+                                skip_loaded=True)
+            null_ctx['edit'] = ctx['edit'] = e_img
+            null_ctx['edit_mask'] = ctx['edit_mask'] = e_mask
+
+            # Diffusion Process
+            self.dynamic_load(self.diffusion_model, 'diffusion_model')
+            function_name, dtype = self.get_function_info(self.diffusion_model)
+            with torch.autocast('cuda',
+                                enabled=dtype in ('float16', 'bfloat16'),
+                                dtype=getattr(torch, dtype)):
+                latent = self.diffusion.sample(
+                    noise=noise,
+                    sampler=sampler,
+                    model=get_model(self.diffusion_model),
+                    model_kwargs=[{
+                        'cond':
+                        ctx,
+                        'mask':
+                        cont_mask,
+                        'text_position_embeddings':
+                        self.text_position_embeddings.pos if hasattr(
+                            self.text_position_embeddings, 'pos') else None
+                    }, {
+                        'cond':
+                        null_ctx,
+                        'mask':
+                        null_cont_mask,
+                        'text_position_embeddings':
+                        self.text_position_embeddings.pos if hasattr(
+                            self.text_position_embeddings, 'pos') else None
+                    }] if guide_scale is not None and guide_scale > 1 else {
+                        'cond':
+                        null_ctx,
+                        'mask':
+                        cont_mask,
+                        'text_position_embeddings':
+                        self.text_position_embeddings.pos if hasattr(
+                            self.text_position_embeddings, 'pos') else None
+                    },
+                    steps=sample_steps,
+                    show_progress=True,
+                    seed=seed,
+                    guide_scale=guide_scale,
+                    guide_rescale=guide_rescale,
+                    return_intermediate=None,
+                    **kwargs)
+            self.dynamic_unload(self.diffusion_model,
+                                'diffusion_model',
+                                skip_loaded=False)
+
+            # Decode to Pixel Space
+            self.dynamic_load(self.first_stage_model, 'first_stage_model')
+            samples = unpack_tensor_into_imagelist(latent, x_shapes)
+            x_samples = self.decode_first_stage(samples)
+            self.dynamic_unload(self.first_stage_model,
+                                'first_stage_model',
+                                skip_loaded=False)
+            x_samples = [x.squeeze(0) for x in x_samples]
+        else:
+            x_samples = image
+        if self.refiner_module and refiner_scale > 0:
+            if is_txt_image:
+                random.shuffle(self.ace_prompt)
+                input_refine_prompt = [self.ace_prompt[0] + refiner_prompt if p[0] == "" else p[0] for p in prompt]
+                input_refine_scale = -1.
+            else:
+                input_refine_prompt = [p[0].replace("{image}", "") + " " + refiner_prompt for p in prompt]
+                input_refine_scale = refiner_scale
+                print(input_refine_prompt)
+
+            x_samples = self.refiner_module.refine(x_samples,
+                                                   reverse_scale = input_refine_scale,
+                                                   prompt= input_refine_prompt,
+                                                   seed=seed,
+                                                   use_dynamic_model=self.use_dynamic_model)
+
+        imgs = [
+            torch.clamp((x_i.float() + 1.0) / 2.0 + self.decoder_bias / 255,
+                        min=0.0,
+                        max=1.0).squeeze(0).permute(1, 2, 0).cpu().numpy()
+            for x_i in x_samples
+        ]
+        imgs = [Image.fromarray((img * 255).astype(np.uint8)) for img in imgs]
+        return imgs
+
+    def cond_stage_embeddings(self, prompt, edit_image, cont, cont_mask):
+        if self.use_text_pos_embeddings and not torch.sum(
+                self.text_position_embeddings.pos) > 0:
+            identifier_cont, _ = getattr(get_model(self.cond_stage_model),
+                                         'encode')(self.text_indentifers,
+                                                   return_mask=True)
+            self.text_position_embeddings.load_state_dict(
+                {'pos': identifier_cont[:, 0, :]})
+
+        cont_, cont_mask_ = [], []
+        for pp, edit, c, cm in zip(prompt, edit_image, cont, cont_mask):
+            if isinstance(pp, list):
+                cont_.append([c[-1], *c] if len(edit) > 0 else [c[-1]])
+                cont_mask_.append([cm[-1], *cm] if len(edit) > 0 else [cm[-1]])
+            else:
+                raise NotImplementedError
+
+        return cont_, cont_mask_