File size: 4,705 Bytes
25ade36 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | /* Copyright 2021 The TensorFlow Authors. All Rights Reserved.
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.
==============================================================================*/
#include "edge-impulse-sdk/tensorflow/lite/micro/kernels/activations.h"
#include "edge-impulse-sdk/tensorflow/lite/c/builtin_op_data.h"
#include "edge-impulse-sdk/tensorflow/lite/c/common.h"
#include "edge-impulse-sdk/tensorflow/lite/kernels/internal/common.h"
#include "edge-impulse-sdk/tensorflow/lite/kernels/internal/quantization_util.h"
#include "edge-impulse-sdk/tensorflow/lite/kernels/internal/tensor_ctypes.h"
#include "edge-impulse-sdk/tensorflow/lite/kernels/internal/types.h"
#include "edge-impulse-sdk/tensorflow/lite/kernels/kernel_util.h"
#include "edge-impulse-sdk/tensorflow/lite/kernels/op_macros.h"
#include "edge-impulse-sdk/tensorflow/lite/micro/kernels/kernel_util.h"
#include "edge-impulse-sdk/tensorflow/lite/micro/micro_log.h"
#include "edge-impulse-sdk/tensorflow/lite/micro/micro_utils.h"
namespace tflite {
namespace {
void* ReluInit(TfLiteContext* context, const char* buffer, size_t length) {
TFLITE_DCHECK(context->AllocatePersistentBuffer != nullptr);
return context->AllocatePersistentBuffer(context, sizeof(ReluOpData));
}
TfLiteStatus ReluEval(TfLiteContext* context, TfLiteNode* node) {
TFLITE_DCHECK(node->user_data != nullptr);
const ReluOpData& data = *(static_cast<const ReluOpData*>(node->user_data));
const TfLiteEvalTensor* input =
tflite::micro::GetEvalInput(context, node, kActivationsInputTensor);
TfLiteEvalTensor* output =
tflite::micro::GetEvalOutput(context, node, kActivationsOutputTensor);
switch (input->type) {
case kTfLiteFloat32: {
ReluFloat(tflite::micro::GetTensorShape(input),
tflite::micro::GetTensorData<float>(input),
tflite::micro::GetTensorShape(output),
tflite::micro::GetTensorData<float>(output));
return kTfLiteOk;
}
case kTfLiteInt8: {
tflite::ReluQuantized(data, tflite::micro::GetTensorShape(input),
tflite::micro::GetTensorShape(output),
tflite::micro::GetTensorData<int8_t>(input),
tflite::micro::GetTensorData<int8_t>(output));
return kTfLiteOk;
}
default: {
MicroPrintf("Only float32 is supported currently, got %s",
TfLiteTypeGetName(input->type));
return kTfLiteError;
}
}
}
void* Relu6Init(TfLiteContext* context, const char* buffer, size_t length) {
TFLITE_DCHECK(context->AllocatePersistentBuffer != nullptr);
return context->AllocatePersistentBuffer(context, sizeof(Relu6OpData));
}
TfLiteStatus Relu6Eval(TfLiteContext* context, TfLiteNode* node) {
TFLITE_DCHECK(node->user_data != nullptr);
const Relu6OpData& data = *(static_cast<const Relu6OpData*>(node->user_data));
const TfLiteEvalTensor* input =
tflite::micro::GetEvalInput(context, node, kActivationsInputTensor);
TfLiteEvalTensor* output =
tflite::micro::GetEvalOutput(context, node, kActivationsOutputTensor);
switch (input->type) {
case kTfLiteFloat32: {
Relu6Float(tflite::micro::GetTensorShape(input),
tflite::micro::GetTensorData<float>(input),
tflite::micro::GetTensorShape(output),
tflite::micro::GetTensorData<float>(output));
return kTfLiteOk;
}
case kTfLiteInt8: {
Relu6Quantized(data.zero_int8, data.six_int8,
tflite::micro::GetTensorShape(input),
tflite::micro::GetTensorData<int8_t>(input),
tflite::micro::GetTensorShape(output),
tflite::micro::GetTensorData<int8_t>(output));
return kTfLiteOk;
}
default: {
MicroPrintf("Only float32 is supported currently, got %s",
TfLiteTypeGetName(input->type));
return kTfLiteError;
}
}
}
} // namespace
TfLiteRegistration Register_RELU() {
return tflite::micro::RegisterOp(ReluInit, ReluPrepare, ReluEval);
}
TfLiteRegistration Register_RELU6() {
return tflite::micro::RegisterOp(Relu6Init, Relu6Prepare, Relu6Eval);
}
} // namespace tflite
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