1 files changed, 75 insertions, 0 deletions
diff --git a/thirdparty/oidn/core/buffer.h b/thirdparty/oidn/core/buffer.h
new file mode 100644
index 0000000000..b95109152e
--- /dev/null
+++ b/thirdparty/oidn/core/buffer.h
@@ -0,0 +1,75 @@
+// ======================================================================== //
+// Copyright 2009-2019 Intel Corporation                                    //
+//                                                                          //
+// 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.                                           //
+// ======================================================================== //
+
+#pragma once
+
+#include "common.h"
+#include "device.h"
+
+namespace oidn {
+
+  class Device;
+
+  // Buffer which may or may not own its data
+  class Buffer : public RefCount
+  {
+  private:
+    char* ptr;
+    size_t byteSize;
+    bool shared;
+    Ref<Device> device;
+
+  public:
+    __forceinline Buffer(const Ref<Device>& device, size_t size)
+      : ptr((char*)alignedMalloc(size, 64)),
+        byteSize(size),
+        shared(false),
+        device(device) {}
+
+    __forceinline Buffer(const Ref<Device>& device, void* data, size_t size)
+      : ptr((char*)data),
+        byteSize(size),
+        shared(true),
+        device(device)
+    {
+      if (data == nullptr)
+        throw Exception(Error::InvalidArgument, "buffer pointer null");
+    }
+
+    __forceinline ~Buffer()
+    {
+      if (!shared)
+        alignedFree(ptr);
+    }
+
+    __forceinline char* data() { return ptr; }
+    __forceinline const char* data() const { return ptr; }
+    __forceinline size_t size() const { return byteSize; }
+
+    void* map(size_t offset, size_t size)
+    {
+      if (offset + size > byteSize)
+        throw Exception(Error::InvalidArgument, "buffer region out of range");
+
+      return ptr + offset;
+    }
+
+    void unmap(void* mappedPtr) {}
+
+    Device* getDevice() { return device.get(); }
+  };
+
+} // namespace oidn