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56 lines
1.8 KiB
56 lines
1.8 KiB
/*
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* Copyright (C) 2017 The Android Open Source Project
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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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*/
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#define LOG_TAG "Operations"
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#include "EmbeddingLookup.h"
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#include "CpuExecutor.h"
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#include "Operations.h"
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#include "Tracing.h"
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namespace android {
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namespace nn {
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EmbeddingLookup::EmbeddingLookup(const Operation& operation, RunTimeOperandInfo* operands) {
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value_ = GetInput(operation, operands, kValueTensor);
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lookup_ = GetInput(operation, operands, kLookupTensor);
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output_ = GetOutput(operation, operands, kOutputTensor);
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}
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bool EmbeddingLookup::Eval() {
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NNTRACE_COMP("EmbeddingLookup::Eval");
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const int row_size = value_->shape().dimensions[0];
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const int total_bytes = nonExtensionOperandSizeOfData(value_->type, value_->dimensions);
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const int row_bytes = total_bytes / row_size;
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for (uint32_t i = 0; i < lookup_->shape().dimensions[0]; i++) {
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int idx = (reinterpret_cast<int*>(lookup_->buffer))[i];
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if (idx >= row_size || idx < 0) {
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LOG(ERROR) << "Embedding Lookup: index out of bounds.";
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return false;
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} else {
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memcpy(output_->buffer + i * row_bytes, value_->buffer + idx * row_bytes, row_bytes);
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}
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}
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return true;
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}
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} // namespace nn
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} // namespace android
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