using the latest Ort header instead of minimum compatible headers (#485)

* using the latest Ort header instead of minimum compatible headers

* Update ext_ortlib.cmake

* Update ortcustomops.def

* change the default ORT API version value

cmake/ext_ortlib.cmake

@@ -8,8 +8,8 @@ else()
   message(STATUS "CMAKE_SYSTEM_PROCESSOR=${CMAKE_SYSTEM_PROCESSOR}")
   message(STATUS "CMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}")
 
-  # default to 1.11.1 if not specified
-  set(ONNXRUNTIME_VER "1.12.1" CACHE STRING "ONNX Runtime version")
+  # 1.15.1 is the latest ORT release.
+  set(ONNXRUNTIME_VER "1.15.1" CACHE STRING "ONNX Runtime version")
 
   if(APPLE)
     set(ONNXRUNTIME_URL "v${ONNXRUNTIME_VER}/onnxruntime-osx-universal2-${ONNXRUNTIME_VER}.tgz")

includes/custom_op_lite.h

@@ -726,7 +726,7 @@ struct OrtLiteCustomOp : public OrtCustomOp {
   OrtLiteCustomOp(const char* op_name,
                   const char* execution_provider) : op_name_(op_name),
                                                     execution_provider_(execution_provider) {
-    OrtCustomOp::version = ORT_API_VERSION;
+    OrtCustomOp::version = GetActiveOrtAPIVersion();
 
     OrtCustomOp::GetName = [](const OrtCustomOp* op) { return static_cast<const OrtLiteCustomOp*>(op)->op_name_.c_str(); };
     OrtCustomOp::GetExecutionProviderType = [](const OrtCustomOp* op) { return ((OrtLiteCustomOp*)op)->execution_provider_.c_str(); };
@@ -867,11 +867,6 @@ struct OrtLiteCustomStruct : public OrtLiteCustomOp {
   void init(CustomComputeFn<Args...>) {
     ParseArgs<Args...>(input_types_, output_types_);
 
-    if (!input_types_.empty() && input_types_[0] == ONNX_TENSOR_ELEMENT_DATA_TYPE_UNDEFINED ||
-        !output_types_.empty() && output_types_[0] == ONNX_TENSOR_ELEMENT_DATA_TYPE_UNDEFINED) {
-      OrtCustomOp::version = 14;
-    }
-
     OrtCustomOp::KernelCompute = [](void* op_kernel, OrtKernelContext* context) {
       auto kernel = reinterpret_cast<Kernel*>(op_kernel);
       std::vector<TensorPtr> tensors;

includes/onnxruntime_customop.hpp

@@ -15,11 +15,13 @@
 #include <type_traits>
 
 #include "onnxruntime_c_api.h"
-
 #include "exceptions.h"
 
 #define MIN_ORT_VERSION_SUPPORTED 10
 
+extern "C" int ORT_API_CALL GetActiveOrtAPIVersion();
+
+
 namespace OrtW {
 
 //

shared/lib/ortcustomops.cc

@@ -3,6 +3,8 @@
 
 #include <mutex>
 #include <set>
+#include <cstdlib>  // for std::atoi
+#include <string>
 
 #include "onnxruntime_extensions.h"
 #include "ocos.h"
@@ -59,6 +61,34 @@ class ExternalCustomOps {
   std::vector<const OrtCustomOp*> op_array_;
 };
 
+static int GetOrtVersion(const OrtApiBase* api_base = nullptr) {
+  static int ort_version = 11;  // the default version is 1.11.0
+
+  if (api_base != nullptr) {
+    std::string str_version = api_base->GetVersionString();
+
+    std::size_t first_dot = str_version.find('.');
+    if (first_dot != std::string::npos) {
+      std::size_t second_dot = str_version.find('.', first_dot + 1);
+      // If there is no second dot and the string has more than one character after the first dot, set second_dot to the string length
+      if (second_dot == std::string::npos && first_dot + 1 < str_version.length()) {
+        second_dot = str_version.length();
+      }
+
+      if (second_dot != std::string::npos) {
+        std::string str_minor_version = str_version.substr(first_dot + 1, second_dot - first_dot - 1);
+        int ver = std::atoi(str_minor_version.c_str());
+        // Only change ort_version if conversion is successful (non-zero value)
+        if (ver != 0) {
+          ort_version = ver;
+        }
+      }
+    }
+  }
+
+  return ort_version;
+}
+
 extern "C" bool ORT_API_CALL AddExternalCustomOp(const OrtCustomOp* c_op) {
   OCOS_API_IMPL_BEGIN
   ExternalCustomOps::instance().Add(c_op);
@@ -66,12 +96,21 @@ extern "C" bool ORT_API_CALL AddExternalCustomOp(const OrtCustomOp* c_op) {
   return true;
 }
 
+extern "C" int ORT_API_CALL GetActiveOrtAPIVersion() {
+  int ver = 0;
+  OCOS_API_IMPL_BEGIN
+  ver = GetOrtVersion();
+  OCOS_API_IMPL_END
+  return ver;
+}
+
 extern "C" ORTX_EXPORT OrtStatus* ORT_API_CALL RegisterCustomOps(OrtSessionOptions* options, const OrtApiBase* api) {
   OrtStatus* status = nullptr;
   OCOS_API_IMPL_BEGIN
 
   OrtCustomOpDomain* domain = nullptr;
-  const OrtApi* ortApi = api->GetApi(ORT_API_VERSION);
+  auto ver = GetOrtVersion(api);
+  const OrtApi* ortApi = api->GetApi(ver);
   std::set<std::string> pyop_nameset;
 
 #if defined(PYTHON_OP_SUPPORT)

shared/ortcustomops.def

@@ -2,3 +2,4 @@ LIBRARY "ortextensions.dll"
 EXPORTS
  RegisterCustomOps @1
  AddExternalCustomOp @2
+ GetActiveOrtAPIVersion @3

shared/ortcustomops.ver

@@ -2,5 +2,6 @@
 global:
     RegisterCustomOps;
     AddExternalCustomOp;
+    GetActiveOrtAPIVersion;
 local: *;
 };