add memory load high api

src/io/api_paddle_mobile.cc

@@ -29,7 +29,14 @@ PaddleMobilePredictor<Dtype, P>::PaddleMobilePredictor(
 template <typename Dtype, Precision P>
 bool PaddleMobilePredictor<Dtype, P>::Init(const PaddleMobileConfig &config) {
   paddle_mobile_.reset(new PaddleMobile<Dtype, P>());
-  if (!config.model_dir.empty()) {
+
+  if (config.memory_pack.from_memory) {
+    DLOG << "load from memory!";
+    paddle_mobile_->LoadCombinedMemory(config.memory_pack.model_size,
+                                       config.memory_pack.model_buf,
+                                       config.memory_pack.combined_params_size,
+                                       config.memory_pack.combined_params_buf);
+  } else if (!config.model_dir.empty()) {
     paddle_mobile_->Load(config.model_dir, config.optimize,
                          config.quantification, config.batch_size);
   } else if (!config.prog_file.empty() && !config.param_file.empty()) {

src/io/paddle_inference_api.h

@@ -111,6 +111,14 @@ class PaddlePredictor {
   PaddlePredictor() = default;
 };
 
+struct PaddleModelMemoryPack {
+  bool from_memory = false;
+  size_t model_size = 0;
+  uint8_t* model_buf = nullptr;
+  size_t combined_params_size = 0;
+  uint8_t* combined_params_buf = nullptr;
+};
+
 struct PaddleMobileConfig : public PaddlePredictor::Config {
   enum Precision { FP32 = 0 };
   enum Device { kCPU = 0, kFPGA = 1, kGPU_MALI = 2 };
@@ -124,6 +132,7 @@ struct PaddleMobileConfig : public PaddlePredictor::Config {
   int thread_num = 1;
   std::string prog_file;
   std::string param_file;
+  struct PaddleModelMemoryPack memory_pack;
 };
 
 // A factory to help create different predictors.

test/CMakeLists.txt

@@ -236,6 +236,10 @@ if (NOT FOUND_MATCH)
     ADD_EXECUTABLE(test-loadmemory framework/test_load_memory.cpp)
     target_link_libraries(test-loadmemory paddle-mobile)
 
+    # gen test log
+    ADD_EXECUTABLE(test-loadmemory-inference framework/test_load_memory_inference_api.cpp)
+    target_link_libraries(test-loadmemory-inference paddle-mobile)
+
     ADD_EXECUTABLE(test-inference-api framework/test_inference_api.cpp)
     target_link_libraries(test-inference-api paddle-mobile)
 

test/framework/test_load_memory.cpp

@@ -58,9 +58,9 @@ int main() {
   size_t sizeBuf = ReadBuffer(model_path.c_str(), &bufModel);
   uint8_t *bufParams = nullptr;
 
-  DLOG << "sizeBuf: " << sizeBuf;
+  std::cout << "sizeBuf: " << sizeBuf << std::endl;
   size_t sizeParams = ReadBuffer(params_path.c_str(), &bufParams);
-  DLOG << "sizeParams: " << sizeParams;
+  std::cout << "sizeParams: " << sizeParams << std::endl;
 
   paddle_mobile.LoadCombinedMemory(sizeBuf, bufModel, sizeParams, bufParams);
   return 0;

test/framework/test_load_memory_inference_api.cpp

+/* Copyright (c) 2018 PaddlePaddle 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 <string>
+
+#include <iostream>
+#include "../test_helper.h"
+#include "io/paddle_inference_api.h"
+
+static size_t ReadBuffer(const char *file_name, uint8_t **out) {
+  FILE *fp;
+  fp = fopen(file_name, "rb");
+  PADDLE_MOBILE_ENFORCE(fp != nullptr, " %s open failed !", file_name);
+  fseek(fp, 0, SEEK_END);
+  auto size = static_cast<size_t>(ftell(fp));
+  rewind(fp);
+  DLOG << "model size: " << size;
+  *out = reinterpret_cast<uint8_t *>(malloc(size));
+  size_t cur_len = 0;
+  size_t nread;
+  while ((nread = fread(*out + cur_len, 1, size - cur_len, fp)) != 0) {
+    cur_len += nread;
+  }
+  fclose(fp);
+  return cur_len;
+}
+
+static char *Get_binary_data(std::string filename) {
+  FILE *file = fopen(filename.c_str(), "rb");
+  PADDLE_MOBILE_ENFORCE(file != nullptr, "can't open file: %s ",
+                        filename.c_str());
+  fseek(file, 0, SEEK_END);
+  int64_t size = ftell(file);
+  PADDLE_MOBILE_ENFORCE(size > 0, "size is too small");
+  rewind(file);
+  auto *data = new char[size];
+  size_t bytes_read = fread(data, 1, size, file);
+  PADDLE_MOBILE_ENFORCE(bytes_read == size,
+                        "read binary file bytes do not match with fseek");
+  fclose(file);
+  return data;
+}
+
+paddle_mobile::PaddleMobileConfig GetConfig() {
+  paddle_mobile::PaddleMobileConfig config;
+  config.precision = paddle_mobile::PaddleMobileConfig::FP32;
+  config.device = paddle_mobile::PaddleMobileConfig::kCPU;
+  const std::shared_ptr<paddle_mobile::PaddleModelMemoryPack> &memory_pack =
+      std::make_shared<paddle_mobile::PaddleModelMemoryPack>();
+  auto model_path = std::string(g_genet_combine) + "/model";
+  auto params_path = std::string(g_genet_combine) + "/params";
+  memory_pack->model_size =
+      ReadBuffer(model_path.c_str(), &memory_pack->model_buf);
+  std::cout << "sizeBuf: " << memory_pack->model_size << std::endl;
+  memory_pack->combined_params_size =
+      ReadBuffer(params_path.c_str(), &memory_pack->combined_params_buf);
+  std::cout << "sizeParams: " << memory_pack->combined_params_size << std::endl;
+  memory_pack->from_memory = true;
+  config.memory_pack = *memory_pack;
+  config.thread_num = 4;
+  return config;
+}
+int main() {
+  paddle_mobile::PaddleMobileConfig config = GetConfig();
+  auto predictor = paddle_mobile::CreatePaddlePredictor<
+      paddle_mobile::PaddleMobileConfig,
+      paddle_mobile::PaddleEngineKind::kPaddleMobile>(config);
+  return 0;
+}