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https://github.com/PaddlePaddle/FastDeploy.git
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044ab993d2
* ppocr cls preprocessor use manager * hwc2chw cvcuda * ppocr rec preproc use manager * ocr rec preproc cvcuda * fix rec preproc bug * ppocr cls&rec preproc set normalize * fix pybind * address comment
93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "fastdeploy/vision/common/processors/mat_batch.h"
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namespace fastdeploy {
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namespace vision {
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#ifdef WITH_GPU
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void FDMatBatch::SetStream(cudaStream_t s) {
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stream = s;
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for (size_t i = 0; i < mats->size(); ++i) {
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(*mats)[i].SetStream(s);
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}
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}
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#endif
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FDTensor* FDMatBatch::Tensor() {
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if (has_batched_tensor) {
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return fd_tensor.get();
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}
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FDASSERT(mats != nullptr, "Failed to get batched tensor, Mats are empty.");
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FDASSERT(CheckShapeConsistency(mats), "Mats shapes are not consistent.");
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// Each mat has its own tensor,
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// to get a batched tensor, we need copy these tensors to a batched tensor
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FDTensor* src = (*mats)[0].Tensor();
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device = src->device;
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auto new_shape = src->Shape();
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new_shape.insert(new_shape.begin(), mats->size());
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input_cache->Resize(new_shape, src->Dtype(), "batch_input_cache", device);
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for (size_t i = 0; i < mats->size(); ++i) {
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FDASSERT(device == (*mats)[i].Tensor()->device,
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"Mats and MatBatch are not on the same device");
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uint8_t* p = reinterpret_cast<uint8_t*>(input_cache->Data());
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int num_bytes = (*mats)[i].Tensor()->Nbytes();
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FDTensor::CopyBuffer(p + i * num_bytes, (*mats)[i].Tensor()->Data(),
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num_bytes, device, false);
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}
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SetTensor(input_cache);
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return fd_tensor.get();
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}
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void FDMatBatch::SetTensor(FDTensor* tensor) {
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fd_tensor->SetExternalData(tensor->Shape(), tensor->Dtype(), tensor->Data(),
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tensor->device, tensor->device_id);
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device = tensor->device;
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has_batched_tensor = true;
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}
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FDTensor* CreateCachedGpuInputTensor(FDMatBatch* mat_batch) {
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#ifdef WITH_GPU
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// Get the batched tensor
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FDTensor* src = mat_batch->Tensor();
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// Need to make sure the returned tensor is pointed to the input_cache.
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if (src->Data() == mat_batch->output_cache->Data()) {
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std::swap(mat_batch->input_cache, mat_batch->output_cache);
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std::swap(mat_batch->input_cache->name, mat_batch->output_cache->name);
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}
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if (src->device == Device::GPU) {
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return src;
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} else if (src->device == Device::CPU) {
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// Batched tensor on CPU, we need copy it to GPU
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mat_batch->output_cache->Resize(src->Shape(), src->Dtype(), "output_cache",
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Device::GPU);
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FDASSERT(cudaMemcpyAsync(mat_batch->output_cache->Data(), src->Data(),
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src->Nbytes(), cudaMemcpyHostToDevice,
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mat_batch->Stream()) == 0,
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"[ERROR] Error occurs while copy memory from CPU to GPU.");
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std::swap(mat_batch->input_cache, mat_batch->output_cache);
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std::swap(mat_batch->input_cache->name, mat_batch->output_cache->name);
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return mat_batch->input_cache;
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} else {
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FDASSERT(false, "FDMatBatch is on unsupported device: %d", src->device);
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}
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#else
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FDASSERT(false, "FastDeploy didn't compile with WITH_GPU.");
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#endif
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return nullptr;
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}
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} // namespace vision
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} // namespace fastdeploy
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