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# coding=utf-8
# Copyright 2024 HuggingFace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import gc
import random
import unittest
import torch
from diffusers import IFSuperResolutionPipeline
from diffusers.models.attention_processor import AttnAddedKVProcessor
from diffusers.utils.import_utils import is_xformers_available
from diffusers.utils.testing_utils import (
backend_empty_cache,
backend_max_memory_allocated,
backend_reset_max_memory_allocated,
backend_reset_peak_memory_stats,
floats_tensor,
load_numpy,
require_accelerator,
require_hf_hub_version_greater,
require_torch_accelerator,
require_transformers_version_greater,
skip_mps,
slow,
torch_device,
)
from ..pipeline_params import TEXT_GUIDED_IMAGE_VARIATION_BATCH_PARAMS, TEXT_GUIDED_IMAGE_VARIATION_PARAMS
from ..test_pipelines_common import PipelineTesterMixin, assert_mean_pixel_difference
from . import IFPipelineTesterMixin
@skip_mps
class IFSuperResolutionPipelineFastTests(PipelineTesterMixin, IFPipelineTesterMixin, unittest.TestCase):
pipeline_class = IFSuperResolutionPipeline
params = TEXT_GUIDED_IMAGE_VARIATION_PARAMS - {"width", "height"}
batch_params = TEXT_GUIDED_IMAGE_VARIATION_BATCH_PARAMS
required_optional_params = PipelineTesterMixin.required_optional_params - {"latents"}
def get_dummy_components(self):
return self._get_superresolution_dummy_components()
def get_dummy_inputs(self, device, seed=0):
if str(device).startswith("mps"):
generator = torch.manual_seed(seed)
else:
generator = torch.Generator(device=device).manual_seed(seed)
image = floats_tensor((1, 3, 32, 32), rng=random.Random(seed)).to(device)
inputs = {
"prompt": "A painting of a squirrel eating a burger",
"image": image,
"generator": generator,
"num_inference_steps": 2,
"output_type": "np",
}
return inputs
@unittest.skipIf(
torch_device != "cuda" or not is_xformers_available(),
reason="XFormers attention is only available with CUDA and `xformers` installed",
)
def test_xformers_attention_forwardGenerator_pass(self):
self._test_xformers_attention_forwardGenerator_pass(expected_max_diff=1e-3)
def test_save_load_optional_components(self):
self._test_save_load_optional_components()
@unittest.skipIf(torch_device not in ["cuda", "xpu"], reason="float16 requires CUDA or XPU")
@require_accelerator
def test_save_load_float16(self):
# Due to non-determinism in save load of the hf-internal-testing/tiny-random-t5 text encoder
super().test_save_load_float16(expected_max_diff=1e-1)
def test_attention_slicing_forward_pass(self):
self._test_attention_slicing_forward_pass(expected_max_diff=1e-2)
def test_save_load_local(self):
self._test_save_load_local()
def test_inference_batch_single_identical(self):
self._test_inference_batch_single_identical(
expected_max_diff=1e-2,
)
@require_hf_hub_version_greater("0.26.5")
@require_transformers_version_greater("4.47.1")
def test_save_load_dduf(self):
super().test_save_load_dduf(atol=1e-2, rtol=1e-2)
@slow
@require_torch_accelerator
class IFSuperResolutionPipelineSlowTests(unittest.TestCase):
def setUp(self):
# clean up the VRAM before each test
super().setUp()
gc.collect()
backend_empty_cache(torch_device)
def tearDown(self):
# clean up the VRAM after each test
super().tearDown()
gc.collect()
backend_empty_cache(torch_device)
def test_if_superresolution(self):
pipe = IFSuperResolutionPipeline.from_pretrained(
"DeepFloyd/IF-II-L-v1.0", variant="fp16", torch_dtype=torch.float16
)
pipe.unet.set_attn_processor(AttnAddedKVProcessor())
pipe.enable_model_cpu_offload(device=torch_device)
# Super resolution test
backend_empty_cache(torch_device)
backend_reset_max_memory_allocated(torch_device)
backend_reset_peak_memory_stats(torch_device)
image = floats_tensor((1, 3, 64, 64), rng=random.Random(0)).to(torch_device)
generator = torch.Generator(device="cpu").manual_seed(0)
output = pipe(
prompt="anime turtle",
image=image,
generator=generator,
num_inference_steps=2,
output_type="np",
)
image = output.images[0]
assert image.shape == (256, 256, 3)
mem_bytes = backend_max_memory_allocated(torch_device)
assert mem_bytes < 12 * 10**9
expected_image = load_numpy(
"https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main/if/test_if_superresolution_stage_II.npy"
)
assert_mean_pixel_difference(image, expected_image)
pipe.remove_all_hooks()
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