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ncnn/tools/tensorflow/tensorflow2ncnn.cpp
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// Tencent is pleased to support the open source community by making ncnn available.
//
// Copyright (C) 2017 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// 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 <stdio.h>
#include <limits.h>
#include <iostream>
#include <fstream>
#include <set>
#include <limits>
#include <algorithm>
#include <google/protobuf/io/coded_stream.h>
#include <google/protobuf/io/zero_copy_stream_impl.h>
#include <google/protobuf/text_format.h>
#include <google/protobuf/message.h>
#include "graph.pb.h"
static bool read_proto_from_binary(const char* filepath, google::protobuf::Message* message)
{
std::ifstream fs(filepath, std::ifstream::in | std::ifstream::binary);
if (!fs.is_open())
{
fprintf(stderr, "open failed %s\n", filepath);
return false;
}
google::protobuf::io::IstreamInputStream input(&fs);
google::protobuf::io::CodedInputStream codedstr(&input);
codedstr.SetTotalBytesLimit(INT_MAX, INT_MAX / 2);
bool success = message->ParseFromCodedStream(&codedstr);
fs.close();
return success;
}
static bool find_tensor_proto(const std::map<std::string, tensorflow::TensorProto>& weights,
const tensorflow::NodeDef& node, tensorflow::TensorProto& tensor)
{
for (int j=0; j<node.input_size(); j++)
{
const std::string& input_name = node.input(j);
const std::map<std::string, tensorflow::TensorProto>::const_iterator it = weights.find(input_name);
if (it != weights.end())
{
tensor = it->second;
return true;
}
}
return false;
}
static bool get_tensor_proto(const std::map<std::string, tensorflow::TensorProto>& consts,
const tensorflow::NodeDef& node, tensorflow::TensorProto& tensor)
{
const std::string& output_name = node.name();
const std::map<std::string, tensorflow::TensorProto>::const_iterator it = consts.find(output_name);
if (it != consts.end())
{
tensor = it->second;
return true;
}
return false;
}
static bool find_attr_value(const tensorflow::NodeDef& node, const char* key, tensorflow::AttrValue& value)
{
const google::protobuf::Map<std::string, tensorflow::AttrValue>& attr = node.attr();
const google::protobuf::Map<std::string, tensorflow::AttrValue>::const_iterator it = attr.find(key);
if (it != attr.end())
{
value = it->second;
return true;
}
return false;
}
static int parse_tensor_reduction_dim(const tensorflow::TensorProto& tensor)
{
int dim = 0;
// dim == 0 // w h c -> X X X
// dim == 1 // w h c -> X X c
// dim == 2 // w h c -> X h c
// dim == -1 // w h c -> w X X
// dim == -2 // w h c -> w h X
if (!tensor.tensor_content().empty() && tensor.dtype() == 3)// int32
{
const int* data = reinterpret_cast<const int*>(tensor.tensor_content().c_str());
int size = tensor.tensor_content().size() / sizeof(int);
// n h w c
// n h w
// n w
// TODO investigate two stage / three stage reduction
if (size == 2)
{
if (data[0] == 1 && data[1] == 2)
{
dim = 1;
}
}
}
else
{
int axis = tensor.int_val(0);
if (axis == 1)
dim = 0;
else if (axis == 3)
dim = -2;
}
return dim;
}
int main(int argc, char** argv)
{
const char* tensorflowpb = argv[1];
const char* ncnn_prototxt = argc >= 4 ? argv[2] : "ncnn.proto";
const char* ncnn_modelbin = argc >= 4 ? argv[3] : "ncnn.bin";
tensorflow::GraphDef graph;
// load
bool s1 = read_proto_from_binary(tensorflowpb, &graph);
if (!s1)
{
fprintf(stderr, "read_proto_from_binary failed\n");
return -1;
}
FILE* pp = fopen(ncnn_prototxt, "wb");
FILE* bp = fopen(ncnn_modelbin, "wb");
// magic
fprintf(pp, "7767517\n");
int node_count = graph.node_size();
// fprintf(stderr, "node_count = %d\n\n", node_count);
// node reference
std::map<std::string, int> node_reference;
// mapping for Const and Const-Identity
std::map<std::string, tensorflow::TensorProto> weights;
// Dropout like Identity
std::set<std::string> dropouts;
// Const before BinaryOp
std::map<std::string, tensorflow::TensorProto> binaryop_consts;
// global definition line
// [layer count] [blob count]
std::set<std::string> blob_names;
for (int i=0; i<node_count; i++)
{
const tensorflow::NodeDef& node = graph.node(i);
const std::string& output_name = node.name();
if (node.op() == "Const")
{
tensorflow::AttrValue value;
if (find_attr_value(node, "value", value))
{
const tensorflow::TensorProto& tensor = value.tensor();
weights[output_name] = tensor;
}
continue;
}
else if (node.op() == "Identity")
{
const std::string& input_name = node.input(0);
if (weights.find(input_name) != weights.end())
{
weights[output_name] = weights[input_name];
continue;
}
else
{
dropouts.insert(output_name);
}
}
else if (node.op() == "NoOp")
{
weights[output_name] = tensorflow::TensorProto();
continue;
}
else
{
bool isBinaryOp = false;
if (node.op() == "Add" || node.op() == "BiasAdd" || node.op() == "Div"
|| node.op() == "Mul" || node.op() == "RealDiv" || node.op() == "Sub")
{
isBinaryOp = true;
}
if (node.op() == "Max" || node.op() == "Maximum" || node.op() == "Min" || node.op() == "Minimum")
{
// check weights
tensorflow::TensorProto tensor;
if (!find_tensor_proto(weights, node, tensor))
{
isBinaryOp = true;
}
}
if (isBinaryOp)
{
// check weights
for (int j=0; j<node.input_size(); j++)
{
const std::string& input_name = node.input(j);
std::map<std::string, tensorflow::TensorProto>::iterator it = weights.find(input_name);
if (it != weights.end())
{
// binary op with const, insert MemoryData layer and const blob
binaryop_consts[input_name] = it->second;
weights.erase(it);
}
}
}
}
// input
for (int j=0; j<node.input_size(); j++)
{
const std::string& input_name = node.input(j);
// fprintf(stderr, "input = %s\n", input_name.c_str());
if (weights.find(input_name) != weights.end())
{
continue;
}
blob_names.insert(input_name);
if (node_reference.find(input_name) == node_reference.end())
{
node_reference[input_name] = 1;
}
else
{
node_reference[input_name] = node_reference[input_name] + 1;
}
}
// output
// fprintf(stderr, "output = %s\n", output_name.c_str());
blob_names.insert(output_name);
}
// remove node_reference entry with reference equals to one
int splitncnn_blob_count = 0;
std::map<std::string, int>::iterator it = node_reference.begin();
while (it != node_reference.end())
{
if (it->second == 1)
{
node_reference.erase(it++);
}
else
{
splitncnn_blob_count += it->second;
// fprintf(stderr, "%s %d\n", it->first.c_str(), it->second);
++it;
}
}
fprintf(pp, "%lu %lu\n", node_count + node_reference.size() - weights.size(), blob_names.size() + splitncnn_blob_count);
int internal_split = 0;
for (int i=0; i<node_count; i++)
{
const tensorflow::NodeDef& node = graph.node(i);
// layer definition line, repeated
// [type] [name] [bottom blob count] [top blob count] [bottom blobs] [top blobs] [layer specific params]
// fprintf(pp, "%-16s %-16s %d %d", layer.type().c_str(), layer.name().c_str(), node.input_size(), layer.top_size());
if (node.op() == "Add" || node.op() == "BiasAdd")
{
fprintf(pp, "%-16s", "BinaryOp");
}
else if (node.op() == "AvgPool")
{
fprintf(pp, "%-16s", "Pooling");
}
else if (node.op() == "Concat" || node.op() == "ConcatV2")
{
fprintf(pp, "%-16s", "Concat");
}
else if (node.op() == "Const")
{
// check before binaryop
tensorflow::TensorProto tensor;
if (get_tensor_proto(binaryop_consts, node, tensor))
{
fprintf(pp, "%-16s", "MemoryData");
}
else
{
continue;
}
}
else if (node.op() == "Conv2D")
{
fprintf(pp, "%-16s", "Convolution");
}
else if (node.op() == "DepthwiseConv2dNative")
{
fprintf(pp, "%-16s", "ConvolutionDepthWise");
}
else if (node.op() == "Div" || node.op() == "RealDiv")
{
fprintf(pp, "%-16s", "BinaryOp");
}
else if (node.op() == "Exp")
{
fprintf(pp, "%-16s", "UnaryOp");
}
else if (node.op() == "ExpandDims")
{
fprintf(pp, "%-16s", "ExpandDims");
}
else if (node.op() == "Floor")
{
fprintf(pp, "%-16s", "UnaryOp");
}
else if (node.op() == "Identity")
{
// check before binaryop
tensorflow::TensorProto tensor;
if (get_tensor_proto(binaryop_consts, node, tensor))
{
fprintf(pp, "%-16s", "MemoryData");
}
else if (dropouts.find(node.name()) != dropouts.end())
{
fprintf(pp, "%-16s", "Dropout");
}
else
{
continue;
}
}
else if (node.op() == "LRN")
{
fprintf(pp, "%-16s", "LRN");
}
else if (node.op() == "MatMul")
{
fprintf(pp, "%-16s", "InnerProduct");
}
else if (node.op() == "Max" || node.op() == "Maximum")
{
// check weights
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
fprintf(pp, "%-16s", "Reduction");
}
else
{
fprintf(pp, "%-16s", "BinaryOp");
}
}
else if (node.op() == "MaxPool")
{
fprintf(pp, "%-16s", "Pooling");
}
else if (node.op() == "Min" || node.op() == "Minimum")
{
// check weights
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
fprintf(pp, "%-16s", "Reduction");
}
else
{
fprintf(pp, "%-16s", "BinaryOp");
}
}
else if (node.op() == "Mul")
{
fprintf(pp, "%-16s", "BinaryOp");
}
else if (node.op() == "Neg")
{
fprintf(pp, "%-16s", "UnaryOp");
}
else if (node.op() == "NoOp")
{
continue;
}
else if (node.op() == "Pad")
{
fprintf(pp, "%-16s", "Padding");
}
else if (node.op() == "Placeholder")
{
fprintf(pp, "%-16s", "Input");
}
else if (node.op() == "Prod")
{
fprintf(pp, "%-16s", "Reduction");
}
else if (node.op() == "Reciprocal")
{
fprintf(pp, "%-16s", "UnaryOp");
}
else if (node.op() == "Relu")
{
fprintf(pp, "%-16s", "ReLU");
}
else if (node.op() == "Reshape")
{
fprintf(pp, "%-16s", "Reshape");
}
else if (node.op() == "Rsqrt")
{
fprintf(pp, "%-16s", "UnaryOp");
}
else if (node.op() == "Sigmoid")
{
fprintf(pp, "%-16s", "Sigmoid");
}
else if (node.op() == "Softmax")
{
fprintf(pp, "%-16s", "Softmax");
}
else if (node.op() == "Square")
{
fprintf(pp, "%-16s", "UnaryOp");
}
else if (node.op() == "Squeeze")
{
fprintf(pp, "%-16s", "Squeeze");
}
else if (node.op() == "Sub")
{
fprintf(pp, "%-16s", "BinaryOp");
}
else if (node.op() == "Sum")
{
fprintf(pp, "%-16s", "Reduction");
}
else
{
fprintf(pp, "%-16s", node.op().c_str());
fprintf(stderr, "%s not supported yet !\nn", node.op().c_str());
}
int input_size = node.input_size();
for (int j=0; j<node.input_size(); j++)
{
const std::string& input_name = node.input(j);
if (weights.find(input_name) != weights.end())
{
input_size--;
}
}
fprintf(pp, " %-32s %d 1", node.name().c_str(), input_size);
for (int j=0; j<node.input_size(); j++)
{
std::string input_name = node.input(j);
if (weights.find(input_name) != weights.end())
{
continue;
}
if (node_reference.find(input_name) != node_reference.end())
{
int refidx = node_reference[input_name] - 1;
node_reference[input_name] = refidx;
char splitsuffix[256];
sprintf(splitsuffix, "_splitncnn_%d", refidx);
input_name = input_name + splitsuffix;
}
fprintf(pp, " %s", input_name.c_str());
}
fprintf(pp, " %s", node.name().c_str());
if (node.op() == "Add" || node.op() == "BiasAdd")
{
int op_type = 0;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "AvgPool")
{
int pooling_type = 1;
int kernel_size_h = 1;
int kernel_size_w = 1;
int stride_h = 1;
int stride_w = 1;
int pad = 0;
int global_pooling = 0;
int pad_mode = 1;
tensorflow::AttrValue value_ksize;
if (find_attr_value(node, "ksize", value_ksize))
{
// batch, height, width, channels
kernel_size_h = value_ksize.list().i(1);
kernel_size_w = value_ksize.list().i(2);
}
tensorflow::AttrValue value_strides;
if (find_attr_value(node, "strides", value_strides))
{
// batch, height, width, channels
stride_h = value_strides.list().i(1);
stride_w = value_strides.list().i(2);
}
tensorflow::AttrValue value_padding;
if (find_attr_value(node, "padding", value_padding))
{
if (value_padding.s() == "VALID")
{
pad_mode = 1;
}
else if (value_padding.s() == "SAME")
{
pad_mode = 2;
}
}
fprintf(pp, " 0=%d", pooling_type);
fprintf(pp, " 1=%d", kernel_size_w);
fprintf(pp, " 11=%d", kernel_size_h);
fprintf(pp, " 2=%d", stride_w);
fprintf(pp, " 12=%d", stride_h);
fprintf(pp, " 3=%d", pad);
fprintf(pp, " 4=%d", global_pooling);
fprintf(pp, " 5=%d", pad_mode);
}
else if (node.op() == "Concat" || node.op() == "ConcatV2")
{
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
// TODO
// int axis = tensor.int_val(0);
}
}
else if (node.op() == "Const" || node.op() == "Identity")
{
// check before binaryop
tensorflow::TensorProto tensor;
if (get_tensor_proto(binaryop_consts, node, tensor))
{
const tensorflow::TensorShapeProto& shape = tensor.tensor_shape();
int w = 0;
int h = 0;
int c = 0;
if (shape.dim_size() == 1)
{
w = shape.dim(0).size();
}
else if (shape.dim_size() == 2)
{
h = shape.dim(0).size();
w = shape.dim(1).size();
}
else if (shape.dim_size() == 3)
{
c = shape.dim(2).size();
h = shape.dim(0).size();
w = shape.dim(1).size();
}
int weight_data_size = 0;
if (!tensor.tensor_content().empty())
{
if (tensor.dtype() == 1)// float
{
const float* data = reinterpret_cast<const float*>(tensor.tensor_content().c_str());
weight_data_size = tensor.tensor_content().size() / sizeof(float);
if (c == 0)
fwrite(data, sizeof(float), weight_data_size, bp);
else
{
float tmp;
// h-w-c to c-h-w
for (int p=0; p<c; p++)
{
for (int i=0; i<h; i++)
{
for (int j=0; j<w; j++)
{
tmp = data[i*w*c + j*c + p];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
}
}
}
else if (tensor.dtype() == 3)// int32
{
const int* data = reinterpret_cast<const int*>(tensor.tensor_content().c_str());
weight_data_size = tensor.tensor_content().size() / sizeof(int);
float tmp;
if (c == 0)
{
for (int i=0; i<weight_data_size; i++)
{
tmp = data[i];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
else
{
// h-w-c to c-h-w
for (int p=0; p<c; p++)
{
for (int i=0; i<h; i++)
{
for (int j=0; j<w; j++)
{
tmp = data[i*w*c + j*c + p];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
}
}
}
}
else
{
if (tensor.dtype() == 1)// float
{
float val = tensor.float_val(0);
fwrite(&val, sizeof(float), 1, bp);
}
else if (tensor.dtype() == 3)// int32
{
float val = tensor.int_val(0);
fwrite(&val, sizeof(float), 1, bp);
}
}
fprintf(pp, " 0=%d", w);
fprintf(pp, " 1=%d", h);
fprintf(pp, " 2=%d", c);
}
}
else if (node.op() == "Conv2D")
{
// weights
tensorflow::TensorProto tensor;
find_tensor_proto(weights, node, tensor);
const tensorflow::TensorShapeProto& shape = tensor.tensor_shape();
int kernel_size_h = shape.dim(0).size();
int kernel_size_w = shape.dim(1).size();
int num_input = shape.dim(2).size();
int num_output = shape.dim(3).size();
int stride_h = 1;
int stride_w = 1;
int dilation_h = 1;
int dilation_w = 1;
int pad = 0;
tensorflow::AttrValue value_strides;
if (find_attr_value(node, "strides", value_strides))
{
// batch, height, width, channels
stride_h = value_strides.list().i(1);
stride_w = value_strides.list().i(2);
}
tensorflow::AttrValue value_padding;
if (find_attr_value(node, "padding", value_padding))
{
if (value_padding.s() == "VALID")
{
pad = 0;
}
else if (value_padding.s() == "SAME")
{
pad = -233;
}
}
tensorflow::AttrValue value_rate;
if (find_attr_value(node, "rate", value_rate))
{
// height, width
dilation_h = value_rate.list().i(0);
dilation_w = value_rate.list().i(1);
}
int bias_term = 0;
int weight_data_size = 0;
// reorder h-w-i-o to o-i-h-w
if (!tensor.tensor_content().empty())
{
int quantize_tag = 0;
fwrite(&quantize_tag, sizeof(int), 1, bp);
if (tensor.dtype() == 1)// float
{
const float* data = reinterpret_cast<const float*>(tensor.tensor_content().c_str());
weight_data_size = tensor.tensor_content().size() / sizeof(float);
float tmp;
for (int p=0; p<num_output; p++)
{
for (int q=0; q<num_input; q++)
{
for (int i=0; i<kernel_size_h; i++)
{
for (int j=0; j<kernel_size_w; j++)
{
tmp = data[i*kernel_size_w*num_input*num_output + j*num_input*num_output + q*num_output + p];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
}
}
}
else if (tensor.dtype() == 3)// int32
{
const int* data = reinterpret_cast<const int*>(tensor.tensor_content().c_str());
weight_data_size = tensor.tensor_content().size() / sizeof(int);
float tmp;
for (int p=0; p<num_output; p++)
{
for (int q=0; q<num_input; q++)
{
for (int i=0; i<kernel_size_h; i++)
{
for (int j=0; j<kernel_size_w; j++)
{
tmp = data[i*kernel_size_w*num_input*num_output + j*num_input*num_output + q*num_output + p];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
}
}
}
}
fprintf(pp, " 0=%d", num_output);
fprintf(pp, " 1=%d", kernel_size_w);
fprintf(pp, " 11=%d", kernel_size_h);
fprintf(pp, " 2=%d", dilation_w);
fprintf(pp, " 12=%d", dilation_h);
fprintf(pp, " 3=%d", stride_w);
fprintf(pp, " 13=%d", stride_h);
fprintf(pp, " 4=%d", pad);
fprintf(pp, " 5=%d", bias_term);
fprintf(pp, " 6=%d", weight_data_size);
}
else if (node.op() == "DepthwiseConv2dNative")
{
// weights
tensorflow::TensorProto tensor;
find_tensor_proto(weights, node, tensor);
const tensorflow::TensorShapeProto& shape = tensor.tensor_shape();
int kernel_size_h = shape.dim(0).size();
int kernel_size_w = shape.dim(1).size();
int num_input = shape.dim(2).size();
int channel_multiplier = shape.dim(3).size();
int num_output = num_input * channel_multiplier;
int group = num_input;
int stride_h = 1;
int stride_w = 1;
int dilation_h = 1;
int dilation_w = 1;
int pad = 0;
tensorflow::AttrValue value_strides;
if (find_attr_value(node, "strides", value_strides))
{
// batch, height, width, channels
stride_h = value_strides.list().i(1);
stride_w = value_strides.list().i(2);
}
tensorflow::AttrValue value_padding;
if (find_attr_value(node, "padding", value_padding))
{
if (value_padding.s() == "VALID")
{
pad = 0;
}
else if (value_padding.s() == "SAME")
{
pad = -233;
}
}
tensorflow::AttrValue value_rate;
if (find_attr_value(node, "rate", value_rate))
{
// height, width
dilation_h = value_rate.list().i(0);
dilation_w = value_rate.list().i(1);
}
int bias_term = 0;
int weight_data_size = 0;
// reorder h-w-i-cm to i-cm-h-w
if (!tensor.tensor_content().empty())
{
int quantize_tag = 0;
fwrite(&quantize_tag, sizeof(int), 1, bp);
if (tensor.dtype() == 1)// float
{
const float* data = reinterpret_cast<const float*>(tensor.tensor_content().c_str());
weight_data_size = tensor.tensor_content().size() / sizeof(float);
float tmp;
for (int p=0; p<num_input; p++)
{
for (int q=0; q<channel_multiplier; q++)
{
for (int i=0; i<kernel_size_h; i++)
{
for (int j=0; j<kernel_size_w; j++)
{
tmp = data[i*kernel_size_w*channel_multiplier*num_input + j*channel_multiplier*num_input + p*channel_multiplier + q];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
}
}
}
else if (tensor.dtype() == 3)// int32
{
const int* data = reinterpret_cast<const int*>(tensor.tensor_content().c_str());
weight_data_size = tensor.tensor_content().size() / sizeof(int);
float tmp;
for (int p=0; p<num_input; p++)
{
for (int q=0; q<channel_multiplier; q++)
{
for (int i=0; i<kernel_size_h; i++)
{
for (int j=0; j<kernel_size_w; j++)
{
tmp = data[i*kernel_size_w*channel_multiplier*num_input + j*channel_multiplier*num_input + p*channel_multiplier + q];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
}
}
}
}
fprintf(pp, " 0=%d", num_output);
fprintf(pp, " 1=%d", kernel_size_w);
fprintf(pp, " 11=%d", kernel_size_h);
fprintf(pp, " 2=%d", dilation_w);
fprintf(pp, " 12=%d", dilation_h);
fprintf(pp, " 3=%d", stride_w);
fprintf(pp, " 13=%d", stride_h);
fprintf(pp, " 4=%d", pad);
fprintf(pp, " 5=%d", bias_term);
fprintf(pp, " 6=%d", weight_data_size);
fprintf(pp, " 7=%d", group);
}
else if (node.op() == "Div" || node.op() == "RealDiv")
{
int op_type = 3;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "Exp")
{
int op_type = 7;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "ExpandDims")
{
int expand_w = 0;
int expand_h = 0;
int expand_c = 0;
tensorflow::AttrValue value_dim;
if (find_attr_value(node, "Tdim", value_dim))
{
int dim = value_dim.i();
if (dim == 0)
expand_w = 1;
if (dim == 1)
expand_h = 1;
if (dim == 2)
expand_c = 1;
}
fprintf(pp, " 0=%d", expand_w);
fprintf(pp, " 1=%d", expand_h);
fprintf(pp, " 2=%d", expand_c);
}
else if (node.op() == "Floor")
{
int op_type = 2;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "LRN")
{
int norm_region = 0;
int local_size = 1;
float alpha = 1.f;
float beta = 0.5f;
tensorflow::AttrValue value_depth_radius;
if (find_attr_value(node, "depth_radius", value_depth_radius))
{
local_size = value_depth_radius.i() * 2 + 1;
}
tensorflow::AttrValue value_alpha;
if (find_attr_value(node, "alpha", value_alpha))
{
alpha = value_alpha.f();
}
tensorflow::AttrValue value_beta;
if (find_attr_value(node, "beta", value_beta))
{
beta = value_beta.f();
}
// TODO
float bias = 1.f;
tensorflow::AttrValue value_bias;
if (find_attr_value(node, "bias", value_bias))
{
bias = value_bias.f();
}
fprintf(pp, " 0=%d", norm_region);
fprintf(pp, " 1=%d", local_size);
fprintf(pp, " 2=%f", alpha);
fprintf(pp, " 3=%f", beta);
}
else if (node.op() == "MatMul")
{
// weights
tensorflow::TensorProto tensor;
find_tensor_proto(weights, node, tensor);
const tensorflow::TensorShapeProto& shape = tensor.tensor_shape();
int num_input = shape.dim(0).size();
int num_output = shape.dim(1).size();
int bias_term = 0;
int weight_data_size = 0;
// reorder i-o to o-i
if (!tensor.tensor_content().empty())
{
int quantize_tag = 0;
fwrite(&quantize_tag, sizeof(int), 1, bp);
if (tensor.dtype() == 1)// float
{
const float* data = reinterpret_cast<const float*>(tensor.tensor_content().c_str());
weight_data_size = tensor.tensor_content().size() / sizeof(float);
float tmp;
for (int p=0; p<num_output; p++)
{
for (int q=0; q<num_input; q++)
{
tmp = data[q*num_output + p];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
}
else if (tensor.dtype() == 3)// int32
{
const int* data = reinterpret_cast<const int*>(tensor.tensor_content().c_str());
weight_data_size = tensor.tensor_content().size() / sizeof(int);
float tmp;
for (int p=0; p<num_output; p++)
{
for (int q=0; q<num_input; q++)
{
tmp = data[q*num_output + p];
fwrite(&tmp, sizeof(float), 1, bp);
}
}
}
}
fprintf(pp, " 0=%d", num_output);
fprintf(pp, " 1=%d", bias_term);
fprintf(pp, " 2=%d", weight_data_size);
}
else if (node.op() == "Max" || node.op() == "Maximum")
{
// check weights
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
int operation = 4;
int dim = 0;
float coeff = 1.f;
dim = parse_tensor_reduction_dim(tensor);
fprintf(pp, " 0=%d", operation);
fprintf(pp, " 1=%d", dim);
fprintf(pp, " 2=%f", coeff);
}
else
{
int op_type = 4;
fprintf(pp, " 0=%d", op_type);
}
}
else if (node.op() == "MaxPool")
{
int pooling_type = 0;
int kernel_size_h = 1;
int kernel_size_w = 1;
int stride_h = 1;
int stride_w = 1;
int pad = 0;
int global_pooling = 0;
int pad_mode = 1;
tensorflow::AttrValue value_ksize;
if (find_attr_value(node, "ksize", value_ksize))
{
// batch, height, width, channels
kernel_size_h = value_ksize.list().i(1);
kernel_size_w = value_ksize.list().i(2);
}
tensorflow::AttrValue value_strides;
if (find_attr_value(node, "strides", value_strides))
{
// batch, height, width, channels
stride_h = value_strides.list().i(1);
stride_w = value_strides.list().i(2);
}
tensorflow::AttrValue value_padding;
if (find_attr_value(node, "padding", value_padding))
{
if (value_padding.s() == "VALID")
{
pad_mode = 1;
}
else if (value_padding.s() == "SAME")
{
pad_mode = 2;
}
}
fprintf(pp, " 0=%d", pooling_type);
fprintf(pp, " 1=%d", kernel_size_w);
fprintf(pp, " 11=%d", kernel_size_h);
fprintf(pp, " 2=%d", stride_w);
fprintf(pp, " 12=%d", stride_h);
fprintf(pp, " 3=%d", pad);
fprintf(pp, " 4=%d", global_pooling);
fprintf(pp, " 5=%d", pad_mode);
}
else if (node.op() == "Min" || node.op() == "Minimum")
{
// check weights
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
int operation = 5;
int dim = 0;
float coeff = 1.f;
dim = parse_tensor_reduction_dim(tensor);
fprintf(pp, " 0=%d", operation);
fprintf(pp, " 1=%d", dim);
fprintf(pp, " 2=%f", coeff);
}
else
{
int op_type = 5;
fprintf(pp, " 0=%d", op_type);
}
}
else if (node.op() == "Mul")
{
int op_type = 2;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "Neg")
{
int op_type = 1;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "NoOp")
{
}
else if (node.op() == "Pad")
{
int top = 0;
int bottom = 0;
int left = 0;
int right = 0;
int type = 0;
float value = 0.f;
// check weights
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
if (!tensor.tensor_content().empty() && tensor.dtype() == 3)// int32
{
const int *data = reinterpret_cast<const int*>(tensor.tensor_content().c_str());
int size = tensor.tensor_content().size() / sizeof(int);
if (size == 8)
{
// n h w c
top = data[2];
bottom = data[3];
left = data[4];
right = data[5];
}
}
}
tensorflow::AttrValue value_Tpaddings;
if (find_attr_value(node, "Tpaddings", value_Tpaddings))
{
type = value_Tpaddings.i();
}
tensorflow::AttrValue value_T;
if (find_attr_value(node, "T", value_T))
{
value = value_T.f();
}
fprintf(pp, " 0=%d", top);
fprintf(pp, " 1=%d", bottom);
fprintf(pp, " 2=%d", left);
fprintf(pp, " 3=%d", right);
fprintf(pp, " 4=%d", type);
fprintf(pp, " 5=%f", value);
}
else if (node.op() == "Placeholder")
{
// TODO pass through
fprintf(pp, " 0=0 1=0 2=0");
}
else if (node.op() == "Prod")
{
int operation = 6;
int dim = 0;
float coeff = 1.f;
// check weights
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
dim = parse_tensor_reduction_dim(tensor);
}
fprintf(pp, " 0=%d", operation);
fprintf(pp, " 1=%d", dim);
fprintf(pp, " 2=%f", coeff);
}
else if (node.op() == "Reciprocal")
{
int op_type = 15;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "Relu")
{
float slope = 0.f;
fprintf(pp, " 0=%f", slope);
}
else if (node.op() == "Reshape")
{
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
if (!tensor.tensor_content().empty() && tensor.dtype() == 3)// int32
{
const int* data = reinterpret_cast<const int*>(tensor.tensor_content().c_str());
int size = tensor.tensor_content().size() / sizeof(int);
// n h w c
// n h w
// n w
if (size == 4)
{
fprintf(pp, " 0=%d 1=%d 2=%d 3=0", data[2], data[1], data[3]);
}
if (size == 3)
{
fprintf(pp, " 0=%d 1=%d 2=-233 3=1", data[2], data[1]);
}
if (size == 2)
{
fprintf(pp, " 0=%d 1=-233 2=-233 3=1", data[1]);
}
}
}
else
{
// pass through
fprintf(pp, " 0=0 1=0 2=0 3=0");
}
}
else if (node.op() == "Rsqrt")
{
int op_type = 6;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "Sigmoid")
{
}
else if (node.op() == "Softmax")
{
}
else if (node.op() == "Square")
{
int op_type = 4;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "Squeeze")
{
int squeeze_w = 0;
int squeeze_h = 0;
int squeeze_c = 0;
tensorflow::AttrValue value_squeeze_dims;
if (find_attr_value(node, "squeeze_dims", value_squeeze_dims))
{
for (int i = 0; i<value_squeeze_dims.list().i_size(); i++)
{
int dim = value_squeeze_dims.list().i(i);
if (dim == 0)
squeeze_w = 1;
if (dim == 1)
squeeze_h = 1;
if (dim == 2)
squeeze_c = 1;
}
}
fprintf(pp, " 0=%d", squeeze_w);
fprintf(pp, " 1=%d", squeeze_h);
fprintf(pp, " 2=%d", squeeze_c);
}
else if (node.op() == "Sub")
{
int op_type = 1;
fprintf(pp, " 0=%d", op_type);
}
else if (node.op() == "Sum")
{
int operation = 0;
int dim = 0;
float coeff = 1.f;
// check weights
tensorflow::TensorProto tensor;
if (find_tensor_proto(weights, node, tensor))
{
dim = parse_tensor_reduction_dim(tensor);
}
fprintf(pp, " 0=%d", operation);
fprintf(pp, " 1=%d", dim);
fprintf(pp, " 2=%f", coeff);
}
else
{
const google::protobuf::Map<std::string, tensorflow::AttrValue>& attr = node.attr();
google::protobuf::Map<std::string, tensorflow::AttrValue>::const_iterator it = attr.begin();
for (; it != attr.end(); it++)
{
std::cerr << it->first << " #" << it->second.type() << std::endl;
}
}
fprintf(pp, "\n");
std::string output_name = node.name();
if (node_reference.find(output_name) != node_reference.end())
{
int refcount = node_reference[output_name];
if (refcount > 1)
{
char splitname[256];
sprintf(splitname, "splitncnn_%d", internal_split);
fprintf(pp, "%-16s %-32s %d %d", "Split", splitname, 1, refcount);
fprintf(pp, " %s", output_name.c_str());
for (int j=0; j<refcount; j++)
{
fprintf(pp, " %s_splitncnn_%d", output_name.c_str(), j);
}
fprintf(pp, "\n");
internal_split++;
}
}
}
fclose(pp);
fclose(bp);
return 0;
}