1 files changed, 47 insertions, 0 deletions
diff --git a/intern/cycles/integrator/denoiser_oidn.h b/intern/cycles/integrator/denoiser_oidn.h
new file mode 100644
index 00000000000..566e761ae79
--- /dev/null
+++ b/intern/cycles/integrator/denoiser_oidn.h
@@ -0,0 +1,47 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include "integrator/denoiser.h"
+#include "util/util_thread.h"
+#include "util/util_unique_ptr.h"
+
+CCL_NAMESPACE_BEGIN
+
+/* Implementation of denoising API which uses OpenImageDenoise library. */
+class OIDNDenoiser : public Denoiser {
+ public:
+  /* Forwardly declared state which might be using compile-flag specific fields, such as
+   * OpenImageDenoise device and filter handles. */
+  class State;
+
+  OIDNDenoiser(Device *path_trace_device, const DenoiseParams &params);
+
+  virtual bool denoise_buffer(const BufferParams &buffer_params,
+                              RenderBuffers *render_buffers,
+                              const int num_samples,
+                              bool allow_inplace_modification) override;
+
+ protected:
+  virtual uint get_device_type_mask() const override;
+
+  /* We only perform one denoising at a time, since OpenImageDenoise itself is multithreaded.
+   * Use this mutex whenever images are passed to the OIDN and needs to be denoised. */
+  static thread_mutex mutex_;
+};
+
+CCL_NAMESPACE_END