denoiser_oidn.h

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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#pragma once
 
#include "integrator/denoiser.h"
#include "util/thread.h"
#include "util/unique_ptr.h"
 
CCL_NAMESPACE_BEGIN
 
/* Implementation of a CPU based denoiser 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 *denoiser_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