1 files changed, 66 insertions, 0 deletions
diff --git a/intern/cycles/device/cuda/graphics_interop.h b/intern/cycles/device/cuda/graphics_interop.h
new file mode 100644
index 00000000000..8a70c8aa71d
--- /dev/null
+++ b/intern/cycles/device/cuda/graphics_interop.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2011-2021 Blender Foundation
+ *
+ * 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.
+ */
+
+#ifdef WITH_CUDA
+
+#  include "device/device_graphics_interop.h"
+
+#  ifdef WITH_CUDA_DYNLOAD
+#    include "cuew.h"
+#  else
+#    include <cuda.h>
+#  endif
+
+CCL_NAMESPACE_BEGIN
+
+class CUDADevice;
+class CUDADeviceQueue;
+
+class CUDADeviceGraphicsInterop : public DeviceGraphicsInterop {
+ public:
+  explicit CUDADeviceGraphicsInterop(CUDADeviceQueue *queue);
+
+  CUDADeviceGraphicsInterop(const CUDADeviceGraphicsInterop &other) = delete;
+  CUDADeviceGraphicsInterop(CUDADeviceGraphicsInterop &&other) noexcept = delete;
+
+  ~CUDADeviceGraphicsInterop();
+
+  CUDADeviceGraphicsInterop &operator=(const CUDADeviceGraphicsInterop &other) = delete;
+  CUDADeviceGraphicsInterop &operator=(CUDADeviceGraphicsInterop &&other) = delete;
+
+  virtual void set_destination(const DeviceGraphicsInteropDestination &destination) override;
+
+  virtual device_ptr map() override;
+  virtual void unmap() override;
+
+ protected:
+  CUDADeviceQueue *queue_ = nullptr;
+  CUDADevice *device_ = nullptr;
+
+  /* OpenGL PBO which is currently registered as the destination for the CUDA buffer. */
+  uint opengl_pbo_id_ = 0;
+  /* Buffer area in pixels of the corresponding PBO. */
+  int64_t buffer_area_ = 0;
+
+  /* The destination was requested to be cleared. */
+  bool need_clear_ = false;
+
+  CUgraphicsResource cu_graphics_resource_ = nullptr;
+};
+
+CCL_NAMESPACE_END
+
+#endif