[Other] Unify initialize api for lite/trt backend (#1249)

* Unify initialize api for lite/trt backend

* Unify initialize api for lite/trt backend

fastdeploy/runtime/backends/lite/lite_backend.cc

@@ -56,18 +56,39 @@ void LiteBackend::BuildOption(const LiteBackendOption& option) {
   }
 }
 
-bool LiteBackend::InitFromPaddle(const std::string& model_file,
+bool LiteBackend::Init(const RuntimeOption& runtime_option) {
-                                 const std::string& params_file,
-                                 const LiteBackendOption& option) {
   if (initialized_) {
     FDERROR << "LiteBackend is already initialized, cannot initialize again."
             << std::endl;
     return false;
   }
 
-  config_.set_model_file(model_file);
+  if (runtime_option.model_format != ModelFormat::PADDLE) {
-  config_.set_param_file(params_file);
+    FDERROR
-  BuildOption(option);
+        << "PaddleLiteBackend only supports model format PADDLE, but now it's "
+        << runtime_option.model_format << "." << std::endl;
+    return false;
+  }
+  if (runtime_option.device != Device::CPU &&
+      runtime_option.device != Device::KUNLUNXIN &&
+      runtime_option.device != Device::ASCEND &&
+      runtime_option.device != Device::TIMVX) {
+    FDERROR << "PaddleLiteBackend only supports "
+               "Device::CPU/Device::TIMVX/Device::KUNLUNXIN/Device::ASCEND, "
+               "but now it's "
+            << runtime_option.device << "." << std::endl;
+    return false;
+  }
+  if (runtime_option.model_from_memory_) {
+    FDERROR << "PaddleLiteBackend doesn't support load model from memory, "
+               "please load model from disk."
+            << std::endl;
+    return false;
+  }
+
+  config_.set_model_file(runtime_option.model_file);
+  config_.set_param_file(runtime_option.params_file);
+  BuildOption(runtime_option.paddle_lite_option);
   predictor_ =
       paddle::lite_api::CreatePaddlePredictor<paddle::lite_api::CxxConfig>(
           config_);

fastdeploy/runtime/backends/lite/lite_backend.h

@@ -22,6 +22,7 @@
 #include "paddle_api.h"  // NOLINT
 
 #include "fastdeploy/runtime/backends/backend.h"
+#include "fastdeploy/runtime/runtime_option.h"
 #include "fastdeploy/runtime/backends/lite/option.h"
 
 namespace fastdeploy {
@@ -30,11 +31,8 @@ class LiteBackend : public BaseBackend {
  public:
   LiteBackend() {}
   virtual ~LiteBackend() = default;
-  void BuildOption(const LiteBackendOption& option);
 
-  bool InitFromPaddle(const std::string& model_file,
+  bool Init(const RuntimeOption& option);
-                      const std::string& params_file,
-                      const LiteBackendOption& option = LiteBackendOption());
 
   bool Infer(std::vector<FDTensor>& inputs,
             std::vector<FDTensor>* outputs,
@@ -50,6 +48,8 @@ class LiteBackend : public BaseBackend {
   std::vector<TensorInfo> GetOutputInfos() override;
 
  private:
+  void BuildOption(const LiteBackendOption& option);
+
   void ConfigureCpu(const LiteBackendOption& option);
   void ConfigureTimvx(const LiteBackendOption& option);
   void ConfigureAscend(const LiteBackendOption& option);

fastdeploy/runtime/backends/tensorrt/trt_backend.cc

@@ -113,6 +113,50 @@ bool TrtBackend::LoadTrtCache(const std::string& trt_engine_file) {
   return true;
 }
 
+bool TrtBackend::Init(const RuntimeOption& runtime_option) {
+  if (runtime_option.device != Device::GPU) {
+    FDERROR << "TrtBackend only supports Device::GPU, but now it's "
+            << runtime_option.device << "." << std::endl;
+    return false;
+  }
+  if (runtime_option.model_format != ModelFormat::PADDLE &&
+      runtime_option.model_format != ModelFormat::ONNX) {
+    FDERROR
+        << "TrtBackend only supports model format PADDLE/ONNX, but now it's "
+        << runtime_option.model_format << "." << std::endl;
+    return false;
+  }
+  if (runtime_option.model_format == ModelFormat::PADDLE) {
+    if (runtime_option.model_from_memory_) {
+      return InitFromPaddle(runtime_option.model_file,
+                            runtime_option.params_file,
+                            runtime_option.trt_option);
+    } else {
+      std::string model_buffer;
+      std::string params_buffer;
+      FDASSERT(ReadBinaryFromFile(runtime_option.model_file, &model_buffer),
+               "Failed to read model file %s.",
+               runtime_option.model_file.c_str());
+      FDASSERT(ReadBinaryFromFile(runtime_option.params_file, &params_buffer),
+               "Failed to read parameters file %s.",
+               runtime_option.params_file.c_str());
+      return InitFromPaddle(model_buffer, params_buffer,
+                            runtime_option.trt_option);
+    }
+  } else {
+    if (runtime_option.model_from_memory_) {
+      return InitFromOnnx(runtime_option.model_file, runtime_option.trt_option);
+    } else {
+      std::string model_buffer;
+      FDASSERT(ReadBinaryFromFile(runtime_option.model_file, &model_buffer),
+               "Failed to read model file %s.",
+               runtime_option.model_file.c_str());
+      return InitFromOnnx(model_buffer, runtime_option.trt_option);
+    }
+  }
+  return true;
+}
+
 bool TrtBackend::InitFromPaddle(const std::string& model_buffer,
                                 const std::string& params_buffer,
                                 const TrtBackendOption& option, bool verbose) {

fastdeploy/runtime/backends/tensorrt/trt_backend.h

@@ -70,14 +70,8 @@ FDDataType GetFDDataType(const nvinfer1::DataType& dtype);
 class TrtBackend : public BaseBackend {
  public:
   TrtBackend() : engine_(nullptr), context_(nullptr) {}
-  void BuildOption(const TrtBackendOption& option);
 
-  bool InitFromPaddle(const std::string& model_buffer,
+  bool Init(const RuntimeOption& runtime_option);
-                      const std::string& params_buffer,
-                      const TrtBackendOption& option = TrtBackendOption(),
-                      bool verbose = false);
-  bool InitFromOnnx(const std::string& model_buffer,
-                    const TrtBackendOption& option = TrtBackendOption());
   bool Infer(std::vector<FDTensor>& inputs, std::vector<FDTensor>* outputs,
              bool copy_to_fd = true) override;
 
@@ -98,6 +92,15 @@ class TrtBackend : public BaseBackend {
   }
 
  private:
+  void BuildOption(const TrtBackendOption& option);
+
+  bool InitFromPaddle(const std::string& model_buffer,
+                      const std::string& params_buffer,
+                      const TrtBackendOption& option = TrtBackendOption(),
+                      bool verbose = false);
+  bool InitFromOnnx(const std::string& model_buffer,
+                    const TrtBackendOption& option = TrtBackendOption());
+
   TrtBackendOption option_;
   std::shared_ptr<nvinfer1::ICudaEngine> engine_;
   std::shared_ptr<nvinfer1::IExecutionContext> context_;

fastdeploy/runtime/runtime.cc

@@ -324,12 +324,6 @@ void Runtime::CreateOrtBackend() {
 }
 
 void Runtime::CreateTrtBackend() {
-  FDASSERT(option.device == Device::GPU,
-           "Backend::TRT only supports Device::GPU.");
-  FDASSERT(option.model_format == ModelFormat::PADDLE ||
-               option.model_format == ModelFormat::ONNX,
-           "TrtBackend only support model format of ModelFormat::PADDLE / "
-           "ModelFormat::ONNX.");
 #ifdef ENABLE_TRT_BACKEND
   option.trt_option.model_file = option.model_file;
   option.trt_option.params_file = option.params_file;
@@ -338,40 +332,8 @@ void Runtime::CreateTrtBackend() {
   option.trt_option.enable_pinned_memory = option.enable_pinned_memory;
   option.trt_option.external_stream_ = option.external_stream_;
   backend_ = utils::make_unique<TrtBackend>();
-  auto casted_backend = dynamic_cast<TrtBackend*>(backend_.get());
+  backend_->benchmark_option_ = option.benchmark_option;
-  casted_backend->benchmark_option_ = option.benchmark_option;
+  FDASSERT(backend_->Init(option), "Failed to initialize TensorRT backend.");
-
-  if (option.model_format == ModelFormat::ONNX) {
-    if (option.model_from_memory_) {
-      FDASSERT(
-          casted_backend->InitFromOnnx(option.model_file, option.trt_option),
-          "Load model from ONNX failed while initliazing TrtBackend.");
-      ReleaseModelMemoryBuffer();
-    } else {
-      std::string model_buffer = "";
-      FDASSERT(ReadBinaryFromFile(option.model_file, &model_buffer),
-               "Fail to read binary from model file");
-      FDASSERT(casted_backend->InitFromOnnx(model_buffer, option.trt_option),
-               "Load model from ONNX failed while initliazing TrtBackend.");
-    }
-  } else {
-    if (option.model_from_memory_) {
-      FDASSERT(casted_backend->InitFromPaddle(
-                   option.model_file, option.params_file, option.trt_option),
-               "Load model from Paddle failed while initliazing TrtBackend.");
-      ReleaseModelMemoryBuffer();
-    } else {
-      std::string model_buffer = "";
-      std::string params_buffer = "";
-      FDASSERT(ReadBinaryFromFile(option.model_file, &model_buffer),
-               "Fail to read binary from model file");
-      FDASSERT(ReadBinaryFromFile(option.params_file, &params_buffer),
-               "Fail to read binary from parameter file");
-      FDASSERT(casted_backend->InitFromPaddle(model_buffer, params_buffer,
-                                              option.trt_option),
-               "Load model from Paddle failed while initliazing TrtBackend.");
-    }
-  }
 #else
   FDASSERT(false,
            "TrtBackend is not available, please compiled with "
@@ -383,29 +345,18 @@ void Runtime::CreateTrtBackend() {
 
 void Runtime::CreateLiteBackend() {
 #ifdef ENABLE_LITE_BACKEND
-  FDASSERT(option.model_from_memory_ == false,
-           "LiteBackend don't support to load model from memory");
-  FDASSERT(option.device == Device::CPU || option.device == Device::TIMVX ||
-               option.device == Device::KUNLUNXIN ||
-               option.device == Device::ASCEND,
-           "Backend::LITE only supports "
-           "Device::CPU/Device::TIMVX/Device::KUNLUNXIN/Device::ASCEND.");
-  FDASSERT(option.model_format == ModelFormat::PADDLE,
-           "LiteBackend only support model format of ModelFormat::PADDLE");
   backend_ = utils::make_unique<LiteBackend>();
-  auto casted_backend = dynamic_cast<LiteBackend*>(backend_.get());
+  backend_->benchmark_option_ = option.benchmark_option;
-  casted_backend->benchmark_option_ = option.benchmark_option;
 
-  FDASSERT(casted_backend->InitFromPaddle(option.model_file, option.params_file,
+  FDASSERT(backend_->Init(option),
-                                          option.paddle_lite_option),
            "Load model from nb file failed while initializing LiteBackend.");
 #else
   FDASSERT(false,
            "LiteBackend is not available, please compiled with "
            "ENABLE_LITE_BACKEND=ON.");
 #endif
-  FDINFO << "Runtime initialized with Backend::LITE in " << option.device << "."
+  FDINFO << "Runtime initialized with Backend::PDLITE in " << option.device
-         << std::endl;
+         << "." << std::endl;
 }
 
 void Runtime::CreateRKNPU2Backend() {