kendryte-standalone-sdk/lib/nncase/nncase.cpp

117 lines
3.4 KiB
C++

/* Copyright 2018 Canaan 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.
*/
#include <nncase.h>
#include <runtime/target_config.h>
#include <stdio.h>
using namespace nncase;
using namespace nncase::runtime;
class nncase_context
{
public:
int load_kmodel(const uint8_t *buffer)
{
return interpreter_.try_load_model(buffer) ? 0 : -1;
}
int get_output(uint32_t index, uint8_t **data, size_t *size)
{
if (index >= interpreter_.outputs_size())
return -1;
auto mem = interpreter_.memory_at<uint8_t>(interpreter_.output_at(index));
*data = mem.data();
*size = mem.size();
return 0;
}
int run_kmodel(const uint8_t *src, dmac_channel_number_t dma_ch, kpu_done_callback_t done_callback, void *userdata)
{
done_callback_ = done_callback;
userdata_ = userdata;
interpreter_.dma_ch(dma_ch);
auto input = interpreter_.input_at(0);
auto mem = interpreter_.memory_at<uint8_t>(input);
std::copy(src, src + mem.size(), mem.begin());
interpreter_.run(done_thunk, on_error_thunk, node_profile_thunk, this);
return 0;
}
private:
void on_done()
{
printf("Total: %fms\n", interpreter_.total_duration().count() / 1e6);
if (done_callback_)
done_callback_(userdata_);
}
static void done_thunk(void *userdata)
{
reinterpret_cast<nncase_context *>(userdata)->on_done();
}
static void on_error_thunk(const char *err, void *userdata)
{
printf("Fatal: %s\n", err);
}
static void node_profile_thunk(runtime_opcode op, std::chrono::nanoseconds duration, void *userdata)
{
printf("%s: %fms\n", node_opcode_names(op).data(), duration.count() / 1e6);
}
private:
interpreter_t interpreter_;
kpu_done_callback_t done_callback_;
void *userdata_;
};
int nncase_load_kmodel(kpu_model_context_t *ctx, const uint8_t *buffer)
{
auto nnctx = new (std::nothrow) nncase_context();
if (ctx)
{
ctx->is_nncase = 1;
ctx->nncase_ctx = nnctx;
return nnctx->load_kmodel(buffer);
}
else
{
return -1;
}
}
int nncase_get_output(kpu_model_context_t *ctx, uint32_t index, uint8_t **data, size_t *size)
{
auto nnctx = reinterpret_cast<nncase_context *>(ctx->nncase_ctx);
return nnctx->get_output(index, data, size);
}
void nncase_model_free(kpu_model_context_t *ctx)
{
auto nnctx = reinterpret_cast<nncase_context *>(ctx->nncase_ctx);
delete nnctx;
ctx->nncase_ctx = nullptr;
}
int nncase_run_kmodel(kpu_model_context_t *ctx, const uint8_t *src, dmac_channel_number_t dma_ch, kpu_done_callback_t done_callback, void *userdata)
{
auto nnctx = reinterpret_cast<nncase_context *>(ctx->nncase_ctx);
return nnctx->run_kmodel(src, dma_ch, done_callback, userdata);
}